diff options
Diffstat (limited to 'src/egl')
49 files changed, 11995 insertions, 0 deletions
diff --git a/src/egl/Makefile b/src/egl/Makefile new file mode 100644 index 0000000000..5b09e178c6 --- /dev/null +++ b/src/egl/Makefile @@ -0,0 +1,31 @@ +# src/egl/Makefile + +TOP = ../.. +include $(TOP)/configs/current + +SUBDIRS = main drivers + + +default: subdirs + + +subdirs: + @for dir in $(SUBDIRS) ; do \ + if [ -d $$dir ] ; then \ + (cd $$dir && $(MAKE)) || exit 1 ; \ + fi \ + done + +install: + @for dir in $(SUBDIRS) ; do \ + if [ -d $$dir ] ; then \ + (cd $$dir && $(MAKE) install) || exit 1 ; \ + fi \ + done + +clean: + -@for dir in $(SUBDIRS) ; do \ + if [ -d $$dir ] ; then \ + (cd $$dir && $(MAKE) clean) ; \ + fi \ + done diff --git a/src/egl/docs/EGL_MESA_screen_surface b/src/egl/docs/EGL_MESA_screen_surface new file mode 100644 index 0000000000..6beb4ce88e --- /dev/null +++ b/src/egl/docs/EGL_MESA_screen_surface @@ -0,0 +1,564 @@ +Name + + MESA_screen_surface + +Name Strings + + EGL_MESA_screen_surface + +Contact + + Brian Paul + + To discuss, join the dri-egl@lists.freedesktop.org list. + +Status + + Preliminary - totally subject to change. + +Version + + 11 (27 January 2006) + +Number + + TBD + +Dependencies + + EGL 1.0 or later. + +Overview + + EGL 1.1 supports three types of drawing surfaces: + * Window surfaces + * Pixmap surfaces + * Pbuffer surfaces + This extension defines a fourth type of drawing surface: + * Screen surface + + A screen surface is a surface for which the (front) color buffer can + be directly displayed (i.e. scanned out) on a monitor (such as a flat + panel or CRT). In particular the color buffer memory will be allocated + at a location in VRAM (and in a suitable format) which can be displayed + by the graphics hardware. + + Note that the width and height of the screen surface need not exactly + match the monitor's current resolution. For example, while the monitor + may be configured to to show 1024x768 pixels, the associated screen + surface may be larger, such as 1200x1000. The "screen origin" attribute + will specify which region of the screen surface which is visible on the + monitor. The screen surface can be scrolled by changing this origin. + + This extension also defines functions for controlling the monitor's + display mode (width, height, refresh rate, etc), and specifing which + screen surface is to be displayed on a monitor. + + The new EGLModeMESA type and related functions are very similar to the + EGLConfig type and related functions. The user may get a list of + supported modes for a screen and specify the mode to be used when + displaying a screen surface. + + +Issues + + 1. Should EGL_INTERLACE be a supported mode attribute? + + Arguments against: + + No, this should be provided by another extension which would + also provide the mechanisms needed to play back interlaced video + material correctly on hardware that supports it. + This extension should prefer non-interlaced modes. [M. Danzer] + + Arguments for: + + An interlaced display can be of use without considering video + material. Being able to query whether a screen is operating in + interlaced mode can be used by applications to control their + drawing. For example: avoid drawing 1-pixel-wide horizontal lines + if screen is interlaced. [B. Paul] + + Resolution: Defer for future extension? + + + 2. Should EGL_REFRESH_RATE be a supported mode attribute? + + Arguments for: + + Yes, it's been shown that applications and/or users need to select + modes by this. [M. Danzer] + + Many examples have been given in which it's desirable to let the + user choose from a variety of refresh rates without having to + restart/reconfigure. [B. Paul] + + Arguments against: + + TBD. + + Resolution: Yes. + + + 3. Exactly how should the list of modes returned by eglChooseConfigMESA + be sorted? + + Current method is described in the text below. Subject to change. + + Alternately, leave the sorting order undefined so that each + implementation can return the modes in order of "most desirable" + to "least desirable" which may depend on the display technology + (CRT vs LCD, etc) or other factors. + + + 4. How should screen blanking be supported? Note that a screen can be + disabled or turned off by calling eglShowSurface(dpy, scrn, + EGL_NO_SURFACE, EGL_NO_MODE_MESA). But what about power-save mode? + + I would defer this to other extensions that depend on this one. + I can imagine people wanting different semantics not just in + relation to the power management API being exposed (DPMS or whatever) + but also relating to what events can trigger EGL_CONTEXT_LOST. Also + I'm not sure whether power management commands are properly operations + on the Display or on a screen surface. [A. Jackson] + + + 5. Should the EGL_PHYSICAL_SIZE_EGL query be kept? The size information + isn't always reliable (consider video projectors) but can still be + used to determine the pixel aspect ratio. + + Resolution: Omit. The EGL 1.2 specification includes queries for + the display resolution and pixel aspect ratio. + + + 6. Should detailed mode timing information be exposed by this API? + + Probably not. Instead, offer that information in a layered extension. + + + 7. How should the notion of a screen's "native" mode be expressed? + For example, LCD panels have a native resolution and refresh rate + that looks best but other sub-optimal resolutions may be supported. + + The mode attribute EGL_OPTIMAL_MESA will be set for modes which + best match the screen. [M. Danzer] + + + 8. Should eglQueryModeStringMESA() be included? This function returns + a human-readable string which corresponds to an EGLMode. + + Arguments for: + + A mode name such as "HDTV-720P" might mean more to users than + "1280x720@60Hz" if the later were generated via code. + + Arguments against: + + There's no standard syntax for the strings. May cause more + trouble than it's worth. + + Postpone for future extension. [A. Jackson] + + Latest discussion leaning toward omitting this function. + + + 9. Should we use "Get" or "Query" for functions which return state? + The EGL 1.x specification doesn't seem to be totally consistent + in this regard, but "Query" is used more often. + + Use "Get" for mode-related queries (as for EGLConfigs) but "Query" + for everything else. + + + 10. What should be the default size for screen surfaces? + + For Pbuffer surfaces the default width and height are zero. + We'll do the same for screen surfaces. Since there's no function + to resize surfaces it's useless to have a 0x0 screen, but this isn't + a situation that'll normally be encountered. + + + 11. Should there be a function for resizing a screen surface? + + Suppose one wants to change the screen's size in the EGL application. + Also suppose there's a hardware restriction such that only one screen + surface can exist at a time (either for lack of memory or because of + memory layout restrictions). + + The basic idea is that the currently displayed screen surface must + be deallocated before a new one can be created. Perhaps a resize + function would work better? + + + 12. How should sub-pixel LCD color information be made available? + What about the display's gamma value? + + Perhaps expose as additional read-only mode attributes. + + Perhaps postpone for a layered extension. + + + 13. What happens if the user attempts to delete a screen surface that + is currently being shown? + + Spec currently says that's illegal and that an error (TBD) will be + generated. + + + 14. What if the physical screen size can't be determined? Should + a query of EGL_PHYSICAL_SIZE_MESA return [0,0]? + + Obsolete: EGL_PHYSICAL_SIZE_MESA not used. + + + 15. Suppose the device's number of RAMDACs is different from the + number of output ports. For example, a graphics card with + two RAMDACs but three ports (VGA, DVI, TV). + + Address this in a follow-on extension. [Matthias Hopf] + + + 16. How should we deal with on-the-fly device changes? For example, + the monitor being unplugged and replaced by another with different + characteristics? + + A HAL event could be received via DBUS in the application [J. Smirl, + A. Jackson]. + + Should there be an EGL mechanism for detecting this? Maybe an + EGL_SCREEN_LOST error (similar to EGL_CONTEXT_LOST) can be recorded + when there's a screen change. At least then the application can + poll to detect this situation. + + Maybe leave that to a future extension. + + See also the EGL_SCREEN_COUNT_MESA query. + + + 17. What if pixel-accurate panning is not supported (see + eglScreenPositionMESA)? [M. Danzer] + + Is this a common problem? Can we ignore it for now? + + + 18. Should eglShowSurfaceMESA be renamed to eglShowScreenSurfaceMESA? + + Probably. + + + +New Procedures and Functions + + EGLBoolean eglChooseModeMESA(EGLDisplay dpy, EGLScreenMESA screen, + const EGLint *attrib_list, + EGLModeMESA *modes, EGLint modes_size, + EGLint *num_modes) + + EGLBoolean eglGetModesMESA(EGLDisplay dpy, EGLScreenMESA screen, + EGLModeMESA *modes, EGLint modes_size, + EGLint *num_modes) + + EGLBoolean eglGetModeAttribMESA(EGLDisplay dpy, EGLModeMESA mode, + EGLint attrib, EGLint *value) + + + EGLBoolean eglGetScreensMESA(EGLDisplay dpy, EGLScreenMESA *screens, + EGLint screens_size, EGLint *num_screens) + + EGLSurface eglCreateScreenSurfaceMESA(EGLDisplay dpy, EGLConfig config, + const EGLint *attrib_list) + + EGLBoolean eglShowSurfaceMESA(EGLDisplay dpy, EGLScreenMESA screen, + EGLSurface surface, EGLModeMESA mode) + + EGLBoolean eglScreenPositionMESA(EGLDisplay dpy, EGLScreenMESA screen, + EGLint x, EGLint y) + + + EGLBoolean eglQueryScreenMESA(EGLDisplay dpy, EGLScreenMESA screen, + EGLint attrib, EGLint *value); + + EGLBoolean eglQueryScreenSurfaceMESA(EGLDisplay dpy, EGLScreenMESA screen, + EGLSurface *surface) + + EGLBoolean eglQueryScreenModeMESA(EGLDisplay dpy, EGLScreenMESA screen, + EGLModeMESA *mode) + + const char *eglQueryModeStringMESA(EGLDisplay dpy, EGLMode mode); + + +New Types + + EGLModeMESA + EGLScreenMESA + +New Tokens + + New error codes: + + EGL_BAD_SCREEN_MESA + EGL_BAD_MODE_MESA + + Screen-related tokens: + + EGL_SCREEN_COUNT_MESA + EGL_SCREEN_POSITION_MESA + EGL_SCREEN_BIT_MESA + EGL_SCREEN_POSITION_GRANULARITY_MESA + + Mode-related tokens: + + EGL_MODE_ID_MESA + EGL_REFRESH_RATE_MESA + EGL_INTERLACED_MESA + EGL_OPTIMAL_MESA + EGL_NO_MODE_MESA + + +Additions to Chapter X of the EGL 1.1 Specification + + [XXX this all has to be rewritten to fit into the EGL specification + and match the conventions of an EGL extension. For now, just list + all the functions with brief descriptions.] + + + EGLBoolean eglChooseModeMESA(EGLDisplay dpy, const EGLScreenMESA screen, + EGLint *attrib_list, EGLModeMESA *modes, + EGLint modes_size, EGLint *num_modes) + + Like eglChooseConfig, returns a list of EGLModes which match the given + attribute list. This does not set the screen's current display mode. + The attribute list is a list of token/value pairs terminated with + EGL_NONE. Supported attributes include: + + Name Description + --------------------- --------------------------------------------- + EGL_WIDTH Mode width (resolution) + EGL_HEIGHT Mode height (resolution) + EGL_REFRESH_RATE_MESA The mode's refresh rate, multiplied by 1000 + EGL_INTERLACED_MESA 1 indicates an interlaced mode, 0 otherwise + EGL_OPTIMAL_MESA Set if the most is especially optimal for the + screen (ex. for particular LCD resolutions) + + Any other token will generate the error EGL_BAD_ATTRIBUTE. + + The list of modes returned by eglChooseModeMESA will be sorted + according to the following criteria. See the discussion of table 3.3 + in the EGL specification for more information. + + Selection Sort Sort + Attribute Default Criteria Order Priority + -------------------- -------------- ----------- ------ -------- + EGL_OPTIMAL_MESA EGL_DONT_CARE Exact 1,0 1 + EGL_INTERLACED_MESA EGL_DONT_CARE Exact 0,1 2 + EGL_REFRESH_RATE EGL_DONT_CARE AtLeast Larger 3 + EGL_WIDTH EGL_DONT_CARE AtLeast Larger 4 + EGL_HEIGHT EGL_DONT_CARE AtLeast Larger 5 + EGL_MODE_ID_MESA EGL_DONT_CARE Exact Smaller 6 + + + EGLBoolean eglGetModesMESA(EGLDisplay dpy, EGLScreenMESA screen, + EGLModeMESA *modes, EGLint modes_size, + EGLint *num_modes) + + Like eglGetConfigs, returns a list of all modes supported by the + given screen. The returned modes will be sorted in the same manner + as for eglChooseModeMESA(). + + + + EGLBoolean eglGetModeAttribMESA(EGLDisplay dpy, EGLModeMESA mode, + EGLint attrib, EGLint *value) + + Used to query mode attributes. The following attributes are supported: + + Name Return value description + --------------------- ---------------------------------------------- + EGL_OPTIMAL_MESA 1 indicates an optimal mode, 0 otherwise + EGL_INTERLACED_MESA 1 indicates an interlaced mode, 0 otherwise + EGL_REFRESH_RATE_MESA The mode's refresh rate, multiplied by 1000 + EGL_WIDTH Mode width (resolution) + EGL_HEIGHT Mode height (resolution) + EGL_MODE_ID_MESA A unique small integer identifier for the mode + + Any other token will generate the error EGL_BAD_ATTRIBUTE. + + + + EGLBoolean eglGetScreensMESA(EGLDisplay dpy, EGLScreenMESA *screens, + EGLint screens_size, EGLint *num_screens) + + This function returns an array of all available screen handles. + <screens_size> is the maximum number of screens to return in the + <screens> array. <num_screens> will return the number of screen handles + placed in the array, even if <screens> is NULL. + + The number of screens and the availability of each may change over + time (hot-plugging). Screen handles will not be reused. When a + screen handle becomes invalid, function calls which reference an + invalid handle will generate EGL_BAD_SCREEN_MESA. + + The first screen handle returned will be considered to be the primary + one. + + + + EGLSurface eglCreateScreenSurfaceMESA(EGLDisplay dpy, EGLConfig config, + const EGLint *attrib_list) + + Create a surface that can be displayed on a screen. <attrib_list> is + an array of token/value pairs terminated with EGL_NONE. Valid tokens + include: + + Name Description + ---------------- -------------------------------- + EGL_WIDTH desired surface width in pixels + EGL_HEIGHT desired surface height in pixels + + Any other token will generate the error EGL_BAD_ATTRIBUTE. + The default width and height are zero. + + + + EGLBoolean eglShowSurfaceMESA(EGLDisplay dpy, EGLScreenMESA screen, + EGLSurface surface, EGLModeMESA mode) + + This function causes a screen to show the given surface (or more + precisely, the surface's front color buffer) with the given mode. + + If the surface is in any way incompatible with the mode, the error + EGL_BAD_MATCH will be generated, EGL_FALSE will be returned, and the + previous screen state will remain in effect. This might occur when + the bandwidth of the video-out subsystem is exceeded, or if the mode + specifies a width or height that's greater than the width or height + of the surface. + + To disable a screen, the values EGL_NO_SURFACE and EGL_NO_MODE_MESA + be passed as the <surface> and <mode> parameters. + + The values of EGL_SCREEN_POSITION_MESA are clamped to the new valid + range computed from the screen size and surface size. If the new + surface is EGL_NO_SURFACE, EGL_SCREEN_POSITION_MESA is set to [0, 0]. + + + Attempting to delete a screen surface which is currently being + displayed will result in the error EGL_BAD_ACCESS being generated. + + + + EGLBoolean eglScreenPositionMESA(EGLDisplay dpy, EGLScreenMESA screen, + EGLint x, EGLint y) + + Specifies the origin of the screen's view into the surface, if the + surface is larger than the screen. Valid values for x and y are + [0, surfaceWidth - screenWidth] and [0, surfaceHeight - screenHeight], + respectively. + + The x and y values are also constrained to be integer multiples of the + EGL_SCREEN_POSITION_GRANULARITY_MESA values. + + + + + EGLBoolean eglQueryScreenMESA(EGLDisplay dpy, EGLScreenMESA screen, + EGLint attrib, EGLint *value); + + Used to query screen attributes. <attrib> may be one of the following: + + Name Return value description + ------------------------ --------------------------------------------- + EGL_SCREEN_POSITION_MESA x, y position of the screen's origin with + respect to the surface. If no surface is + attached to the screen, [0, 0] is returned. + EGL_SCREEN_POSITION_GRANULARITY_MESA + Returns the granularity, in pixels, for + which the screen position is constrained. + + Any other token will generate the error EGL_BAD_ATTRIBUTE. + + + + + EGLBoolean eglQueryScreenSurfaceMESA(EGLDisplay dpy, EGLScreenMESA screen, + EGLSurface *surface) + + Returns the surface currently displayed on the given screen. <surface> + may be EGL_NO_SURFACE if the screen isn't currently showing any surface. + + + + + EGLBoolean eglQueryScreenModeMESA(EGLDisplay dpy, EGLScreenMESA screen, + EGLModeMESA *mode) + + Returns the given screen's current display mode. The mode may be + EGL_NO_MODE_MESA if the screen is currently disabled. + + + + const char *eglQueryModeStringMESA(EGLDisplay dpy, EGLModeMESA mode); + + Returns a human-readable string for the given mode. The string is a + zero-terminated C string which the user should not attempt to free. + There is no standard syntax for mode strings. Applications should + not directly rely on mode strings. + + + +Version History + + 1. 15 March 2005 - BrianP + Initial version + + 2. 16 March 2005 - BrianP + Removed EGL_DEPTH_MESA + Added EGL_PHYSICAL_WIDTH_MESA, EGL_PHYSICAL_HEIGHT_MESA queries + Added EGL_OPTIMAL_MESA for width/height/refresh rate selection + Added possible eglQueryModeStringMESA() function + More details of the new functions explained. + + 3. 18 March 2005 - BrianP + Added screen_number to eglChooseModeMESA(). + Fix off by one mistake in value range for ORIGIN attributes + Added Issues section + + 4. 21 March 2005 - BrianP + Removed eglScreenAttribsMESA(). + Added eglScreenPositionMESA() to set screen origin. + Replaced EGL_SCREEN_X/Y_OFFSET_MESA with EGL_SCREEN_POSITION_MESA. + Replaced EGL_PHYSICAL_WIDTH/HEIGHT_MESA with EGL_PHYSICAL_SIZE_MESA. + Use EGL_OPTIMAL_MESA as a new mode attribute. (Michel Danzer) + Added a few more issues. + + 5. 6 April 2005 - BrianP + More language for eglGetModeStringMESA(). + Added issues 10, 11, 12, 13, 14. + Updated issue 3 discussion about mode sorting. + + 6. 22 April 2005 - BrianP + Fixed "LDC" typo. + Added issues 15, 16. + Changed dependency on EGL 1.1 to EGL 1.0 + s/EGL_NUM_SCREENS_MESA/EGL_SCREEN_COUNT_MESA/ + Added eglQueryDisplayMESA() to New Functions section. + Clarified language for the EGL_SCREEN_COUNT_MESA query. + + 7. 29 April 2005 - BrianP + Added EGLScreenMESA type and eglGetScreensMESA() function. [J. Smirl]. + Replaced EGLint screen_number parameters with EGLScreenMESA screen. + Added issue 17 (pixel-accurate panning) + + 8. 2 May 2005 - BrianP + Removed eglQueryDisplayMESA. + Fixed a few more EGLint -> EGLScreenMESA changes. + + 9. 20 May 2005 - BrianP + Fixed a few typos. + Updated some open issues text. + + 10. 10 August 2005 - BrianP + Added EGL_SCREEN_POSITION_GRANULARITY_MESA. + + 11. 27 January 2006 - BrianP + EGL_PHYSICAL_SIZE_MESA removed since EGL 1.2 has a similar feature. + diff --git a/src/egl/drivers/Makefile b/src/egl/drivers/Makefile new file mode 100644 index 0000000000..dde4ee2255 --- /dev/null +++ b/src/egl/drivers/Makefile @@ -0,0 +1,31 @@ +# src/egl/drivers/Makefile + +TOP = ../../.. +include $(TOP)/configs/current + +SUBDIRS = $(EGL_DRIVERS_DIRS) + + +default: subdirs + + +subdirs: + @for dir in $(SUBDIRS) ; do \ + if [ -d $$dir ] ; then \ + (cd $$dir ; $(MAKE)) || exit 1 ; \ + fi \ + done + +install: + @ for dir in $(SUBDIRS) ; do \ + if [ -d $$dir ] ; then \ + (cd $$dir ; $(MAKE) install) || exit 1 ; \ + fi \ + done + +clean: + @for dir in $(SUBDIRS) ; do \ + if [ -d $$dir ] ; then \ + (cd $$dir ; $(MAKE) clean) ; \ + fi \ + done diff --git a/src/egl/drivers/Makefile.template b/src/egl/drivers/Makefile.template new file mode 100644 index 0000000000..08e82c65e9 --- /dev/null +++ b/src/egl/drivers/Makefile.template @@ -0,0 +1,52 @@ +# src/egl/drivers/Makefile.template +# +# Drivers should define +# +# EGL_DRIVER, the driver name +# EGL_SOURCES, the driver sources +# EGL_INCLUDES, the include pathes +# EGL_CFLAGS, additional CFLAGS +# EGL_LIBS, additional LIBS +# +# before including this template. +# + + +EGL_DRIVER_PATH = $(TOP)/$(LIB_DIR)/egl/$(EGL_DRIVER) +EGL_OBJECTS = $(EGL_SOURCES:.c=.o) + + +default: depend $(EGL_DRIVER_PATH) + +$(EGL_DRIVER_PATH): $(EGL_DRIVER) + @$(INSTALL) -d $(TOP)/$(LIB_DIR)/egl + $(INSTALL) $< $(TOP)/$(LIB_DIR)/egl + +$(EGL_DRIVER): $(EGL_OBJECTS) Makefile $(TOP)/src/egl/drivers/Makefile.template + @$(MKLIB) -o $(EGL_DRIVER) -noprefix \ + -linker '$(CC)' -ldflags '$(LDFLAGS)' \ + -L$(TOP)/$(LIB_DIR) $(MKLIB_OPTIONS) \ + $(EGL_OBJECTS) $(EGL_LIBS) -l$(EGL_LIB) + +.c.o: + $(CC) -c $(EGL_INCLUDES) $(CFLAGS) $(EGL_CFLAGS) $< -o $@ + + +install: $(EGL_DRIVER_PATH) + $(INSTALL) -d $(DESTDIR)$(EGL_DRIVER_INSTALL_DIR) + $(MINSTALL) $(EGL_DRIVER_PATH) $(DESTDIR)$(EGL_DRIVER_INSTALL_DIR) + +clean: + rm -f $(EGL_DRIVER) + rm -f $(EGL_OBJECTS) + rm -f depend depend.bak + +depend: $(EGL_SOURCES) + @ echo "running $(MKDEP)" + @ rm -f depend + @ touch depend + $(MKDEP) $(MKDEP_OPTIONS) $(EGL_INCLUDES) $(EGL_SOURCES) \ + >/dev/null 2>/dev/null + +sinclude depend +# DO NOT DELETE diff --git a/src/egl/drivers/dri/Makefile b/src/egl/drivers/dri/Makefile new file mode 100644 index 0000000000..c3aacff1cf --- /dev/null +++ b/src/egl/drivers/dri/Makefile @@ -0,0 +1,69 @@ +# src/egl/drivers/dri/Makefile + +TOP = ../../../.. +include $(TOP)/configs/current + + +### Include directories +INCLUDE_DIRS = \ + -I. \ + -I/usr/include \ + $(shell pkg-config --cflags-only-I libdrm) \ + -I$(TOP)/include \ + -I$(TOP)/include/GL/internal \ + -I$(TOP)/src/mapi \ + -I$(TOP)/src/mesa \ + -I$(TOP)/src/mesa/main \ + -I$(TOP)/src/mesa/math \ + -I$(TOP)/src/mesa/transform \ + -I$(TOP)/src/mesa/shader \ + -I$(TOP)/src/mesa/swrast \ + -I$(TOP)/src/mesa/swrast_setup \ + -I$(TOP)/src/egl/main \ + -I$(TOP)/src/mesa/drivers/dri/common + + +HEADERS = egldri.h + +SOURCES = egldri.c + +OBJECTS = $(SOURCES:.c=.o) + +DRM_LIB = `pkg-config --libs libdrm` + + +.c.o: + $(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@ + + + +default: depend library Makefile + + +# EGLdri Library +library: $(TOP)/$(LIB_DIR)/libEGLdri.so + +$(TOP)/$(LIB_DIR)/libEGLdri.so: $(OBJECTS) + $(MKLIB) -o EGLdri -linker '$(CC)' -ldflags '$(LDFLAGS)' \ + -major 1 -minor 0 \ + -install $(TOP)/$(LIB_DIR) -ldl $(OBJECTS) $(LIBS) + +install: + $(INSTALL) -d $(DESTDIR)$(INSTALL_LIB_DIR) + $(MINSTALL) $(TOP)/$(LIB_DIR)/libEGLdri.so $(DESTDIR)$(INSTALL_LIB_DIR) + +clean: + -rm -f *.o + -rm -f *.so + -rm -f depend depend.bak + +depend: $(SOURCES) $(HEADERS) + @ echo "running $(MKDEP)" + @ rm -f depend + @ touch depend + $(MKDEP) $(MKDEP_OPTIONS) $(DEFINES) $(INCLUDE_DIRS) \ + $(SOURCES) $(HEADERS) >/dev/null 2>/dev/null + +include depend +# DO NOT DELETE + diff --git a/src/egl/drivers/dri/egldri.c b/src/egl/drivers/dri/egldri.c new file mode 100644 index 0000000000..6a8bf89985 --- /dev/null +++ b/src/egl/drivers/dri/egldri.c @@ -0,0 +1,1205 @@ +/** + * Generic EGL driver for DRI. This is basically an "adaptor" driver + * that allows libEGL to load/use regular DRI drivers. + * + * This file contains all the code needed to interface DRI-based drivers + * with libEGL. + * + * There's a lot of dependencies on fbdev and the /sys/ filesystem. + */ + + +#include <dirent.h> +#include <stdio.h> +#include <string.h> +#include <linux/fb.h> +#include <assert.h> +#include <dlfcn.h> +#include <fcntl.h> +#include <unistd.h> +#include <errno.h> +#include <sys/time.h> + +#include "egldriver.h" +#include "egldisplay.h" +#include "eglcontext.h" +#include "eglconfig.h" +#include "eglconfigutil.h" +#include "eglsurface.h" +#include "eglscreen.h" +#include "eglglobals.h" +#include "egllog.h" +#include "eglmode.h" + +#include "egldri.h" + +const char *sysfs = "/sys/class"; + +static const int empty_attribute_list[1] = { None }; + + + +/** + * Given a card number, return the name of the DRI driver to use. + * This generally means reading the contents of + * /sys/class/drm/cardX/dri_library_name, where X is the card number + */ +static EGLBoolean +driver_name_from_card_number(int card, char *driverName, int maxDriverName) +{ + char path[2000]; + FILE *f; + int length; + + snprintf(path, sizeof(path), "%s/drm/card%d/dri_library_name", sysfs, card); + + f = fopen(path, "r"); + if (!f) + return EGL_FALSE; + + fgets(driverName, maxDriverName, f); + fclose(f); + + if ((length = strlen(driverName)) > 1) { + /* remove the trailing newline from sysfs */ + driverName[length - 1] = '\0'; + strncat(driverName, "_dri", maxDriverName); + return EGL_TRUE; + } + else { + return EGL_FALSE; + } +} + + + +/** + * The bootstrap function. + * Return a new driDriver object and plug in API functions. + * This function, in turn, loads a specific DRI driver (ex: r200_dri.so). + */ +_EGLDriver * +_eglMain(_EGLDisplay *dpy, const char *args) +{ +#if 1 + const int card = args ? atoi(args) : 0; + _EGLDriver *driver = NULL; + char driverName[1000]; + + if (!driver_name_from_card_number(card, driverName, sizeof(driverName))) { + _eglLog(_EGL_WARNING, + "Unable to determine driver name for card %d\n", card); + return NULL; + } + + _eglLog(_EGL_DEBUG, "Driver name: %s\n", driverName); + + driver = _eglOpenDriver(dpy, driverName, args); + + return driver; + +#else + + int length; + char path[NAME_MAX]; + struct dirent *dirent; +#if 1 + FILE *file; +#endif + DIR *dir; + _EGLDriver *driver = NULL;; + + snprintf(path, sizeof(path), "%s/drm", sysfs); + if (!(dir = opendir(path))) { + _eglLog(_EGL_WARNING, "%s DRM devices not found.", path); + return EGL_FALSE; + } + + /* loop over dir entries looking for cardX where "X" is in the + * dpy->DriverName ":X" string. + */ + while ((dirent = readdir(dir))) { + + if (strncmp(&dirent->d_name[0], "card", 4) != 0) + continue; + if (strcmp(&dirent->d_name[4], &driverName[1]) != 0) + continue; + + snprintf(path, sizeof(path), "%s/drm/card%s/dri_library_name", + sysfs, &driverName[1]); + _eglLog(_EGL_INFO, "Opening %s", path); +#if 1 + file = fopen(path, "r"); + if (!file) { + _eglLog(_EGL_WARNING, "Failed to open %s", path); + return NULL; + } + fgets(path, sizeof(path), file); + fclose(file); +#else + strcpy(path, "r200\n"); +#endif + if ((length = strlen(path)) > 0) + path[length - 1] = '\0'; /* remove the trailing newline from sysfs */ + strncat(path, "_dri", sizeof(path)); + + driver = _eglOpenDriver(dpy, path); + + break; + } + closedir(dir); + + return driver; +#endif +} + + +/** + * Called by eglCreateContext via drv->API.CreateContext(). + */ +static EGLContext +_eglDRICreateContext(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, + EGLContext share_list, const EGLint *attrib_list) +{ + driDisplay *disp = Lookup_driDisplay(dpy); + driContext *c, *share; + void *sharePriv; + _EGLConfig *conf; + __GLcontextModes visMode; + + c = (driContext *) calloc(1, sizeof(*c)); + if (!c) + return EGL_NO_CONTEXT; + + conf = _eglLookupConfig(drv, dpy, config); + assert(conf); + + if (!_eglInitContext(drv, &c->Base, conf, attrib_list)) { + free(c); + return EGL_NO_CONTEXT; + } + + if (share_list != EGL_NO_CONTEXT) { + _EGLContext *shareCtx = _eglLookupContext(share_list); + if (!shareCtx) { + _eglError(EGL_BAD_CONTEXT, "eglCreateContext(share_list)"); + return EGL_FALSE; + } + } + share = Lookup_driContext(share_list); + if (share) + sharePriv = share->driContext.private; + else + sharePriv = NULL; + + _eglConfigToContextModesRec(conf, &visMode); + + c->driContext.private = disp->driScreen.createNewContext(disp, &visMode, + GLX_WINDOW_BIT, sharePriv, &c->driContext); + if (!c->driContext.private) { + free(c); + return EGL_FALSE; + } + + /* link to display */ + _eglLinkContext(&c->Base, &disp->Base); + + return _eglGetContextHandle(&c->Base); +} + + +static EGLBoolean +_eglDRIMakeCurrent(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw, + EGLSurface read, EGLContext context) +{ + driDisplay *disp = Lookup_driDisplay(dpy); + driContext *ctx = Lookup_driContext(context); + EGLBoolean b; + __DRIid drawBuf = (__DRIid) draw; + __DRIid readBuf = (__DRIid) read; + + b = _eglMakeCurrent(drv, dpy, draw, read, context); + if (!b) + return EGL_FALSE; + + if (ctx) { + ctx->driContext.bindContext(disp, 0, drawBuf, readBuf, &ctx->driContext); + } + else { + /* what's this??? */ + /* _mesa_make_current( NULL, NULL, NULL );*/ + } + return EGL_TRUE; +} + + +static EGLSurface +_eglDRICreatePbufferSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, + const EGLint *attrib_list) +{ + driSurface *surf; + _EGLConfig *conf; + + conf = _eglLookupConfig(drv, dpy, config); + assert(conf); + + surf = (driSurface *) calloc(1, sizeof(*surf)); + if (!surf) { + return EGL_NO_SURFACE; + } + + if (!_eglInitSurface(drv, &surf->Base, EGL_PBUFFER_BIT, + conf, attrib_list)) { + free(surf); + return EGL_NO_SURFACE; + } + + /* create software-based pbuffer */ + { +#if 0 + GLcontext *ctx = NULL; /* this _should_ be OK */ +#endif + __GLcontextModes visMode; + _EGLConfig *conf = _eglLookupConfig(drv, dpy, config); + assert(conf); /* bad config should be caught earlier */ + _eglConfigToContextModesRec(conf, &visMode); + +#if 0 + surf->mesa_framebuffer = _mesa_create_framebuffer(&visMode); + _mesa_add_soft_renderbuffers(surf->mesa_framebuffer, + GL_TRUE, /* color bufs */ + visMode.haveDepthBuffer, + visMode.haveStencilBuffer, + visMode.haveAccumBuffer, + GL_FALSE, /* alpha */ + GL_FALSE /* aux */ ); + + /* set pbuffer/framebuffer size */ + _mesa_resize_framebuffer(ctx, surf->mesa_framebuffer, + surf->Base.Width, surf->Base.Height); +#endif + } + + _eglLinkSurface(&surf->Base, _eglLookupDisplay(dpy)); + + return surf->Base.Handle; +} + + +static EGLBoolean +_eglDRIDestroySurface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface) +{ + driDisplay *disp = Lookup_driDisplay(dpy); + driSurface *fs = Lookup_driSurface(surface); + + _eglUnlinkSurface(&fs->Base); + + fs->drawable.destroyDrawable(disp, fs->drawable.private); + + if (!_eglIsSurfaceBound(&fs->Base)) + free(fs); + return EGL_TRUE; +} + + +static EGLBoolean +_eglDRIDestroyContext(_EGLDriver *drv, EGLDisplay dpy, EGLContext context) +{ + driDisplay *disp = Lookup_driDisplay(dpy); + driContext *fc = Lookup_driContext(context); + + _eglUnlinkContext(&fc->Base); + + fc->driContext.destroyContext(disp, 0, fc->driContext.private); + + if (!_eglIsContextBound(&fc->Base)) + free(fc); + return EGL_TRUE; +} + + +/** + * Create a drawing surface which can be directly displayed on a screen. + */ +static EGLSurface +_eglDRICreateScreenSurfaceMESA(_EGLDriver *drv, EGLDisplay dpy, EGLConfig cfg, + const EGLint *attrib_list) +{ + _EGLConfig *config = _eglLookupConfig(drv, dpy, cfg); + driDisplay *disp = Lookup_driDisplay(dpy); + driSurface *surface; + __GLcontextModes visMode; + __DRIid drawBuf; + + surface = (driSurface *) calloc(1, sizeof(*surface)); + if (!surface) { + return EGL_NO_SURFACE; + } + + /* init base class, do error checking, etc. */ + if (!_eglInitSurface(drv, &surface->Base, EGL_SCREEN_BIT_MESA, + config, attrib_list)) { + free(surface); + return EGL_NO_SURFACE; + } + + _eglLinkSurface(&surface->Base &disp->Base); + + + /* + * XXX this is where we should allocate video memory for the surface! + */ + + + /* convert EGLConfig to GLvisual */ + _eglConfigToContextModesRec(config, &visMode); + + drawBuf = (__DRIid) _eglGetSurfaceHandle(&surface->Base); + + /* Create a new DRI drawable */ + if (!disp->driScreen.createNewDrawable(disp, &visMode, drawBuf, + &surface->drawable, GLX_WINDOW_BIT, + empty_attribute_list)) { + _eglUnlinkSurface(&surface->Base); + free(surface); + return EGL_NO_SURFACE; + } + + return surface->Base.Handle; +} + + +/** + * Set the fbdev colormap to a simple linear ramp. + */ +static void +_eglDRILoadColormap(driScreen *scrn) +{ + char path[ NAME_MAX ]; + char *buffer; + int i, fd; + + /* cmap attribute uses 256 lines of 16 bytes. + * Allocate one extra char for the \0 added by sprintf() + */ + if ( !( buffer = malloc( 256 * 16 + 1 ) ) ) { + _eglLog(_EGL_WARNING, "Out of memory in _eglDRILoadColormap"); + return; + } + + /* cmap attribute uses 256 lines of 16 bytes */ + for ( i = 0; i < 256; i++ ) { + int c = (i << 8) | i; /* expand to 16-bit value */ + sprintf(&buffer[i * 16], "%02x%c%04x%04x%04x\n", i, ' ', c, c, c); + } + + snprintf(path, sizeof(path), "%s/graphics/%s/color_map", sysfs, scrn->fb); + if ( !( fd = open( path, O_RDWR ) ) ) { + _eglLog(_EGL_WARNING, "Unable to open %s to set colormap", path); + return; + } + write( fd, buffer, 256 * 16 ); + close( fd ); + + free( buffer ); +} + + +/** + * Show the given surface on the named screen. + * If surface is EGL_NO_SURFACE, disable the screen's output. + * Called via eglShowSurfaceMESA(). + */ +EGLBoolean +_eglDRIShowScreenSurfaceMESA(_EGLDriver *drv, EGLDisplay dpy, + EGLScreenMESA screen, + EGLSurface surface, EGLModeMESA m) +{ + driDisplay *display = Lookup_driDisplay(dpy); + driScreen *scrn = Lookup_driScreen(dpy, screen); + driSurface *surf = Lookup_driSurface(surface); + _EGLMode *mode = _eglLookupMode(dpy, m); + FILE *file; + char fname[NAME_MAX], buffer[1000]; + int temp; + + _eglLog(_EGL_DEBUG, "Enter _eglDRIShowScreenSurface"); + + /* This will check that surface, screen, and mode are valid. + * Also, it checks that the surface is large enough for the mode, etc. + */ + if (!_eglShowScreenSurfaceMESA(drv, dpy, screen, surface, m)) + return EGL_FALSE; + + assert(surface == EGL_NO_SURFACE || surf); + assert(m == EGL_NO_MODE_MESA || mode); + assert(scrn); + + /* + * Blank/unblank screen depending on if m == EGL_NO_MODE_MESA + */ + snprintf(fname, sizeof(fname), "%s/graphics/%s/blank", sysfs, scrn->fb); + file = fopen(fname, "r+"); + if (!file) { + _eglLog(_EGL_WARNING, "kernel patch?? chown all fb sysfs attrib to allow" + " write - %s\n", fname); + return EGL_FALSE; + } + snprintf(buffer, sizeof(buffer), "%d", + (m == EGL_NO_MODE_MESA ? VESA_POWERDOWN : VESA_VSYNC_SUSPEND)); + fputs(buffer, file); + fclose(file); + + if (m == EGL_NO_MODE_MESA) { + /* all done! */ + return EGL_TRUE; + } + + _eglLog(_EGL_INFO, "Setting display mode to %d x %d, %d bpp", + mode->Width, mode->Height, display->bpp); + + /* + * Set the display mode + */ + snprintf(fname, sizeof(fname), "%s/graphics/%s/mode", sysfs, scrn->fb); + file = fopen(fname, "r+"); + if (!file) { + _eglLog(_EGL_WARNING, "Failed to open %s to set mode", fname); + return EGL_FALSE; + } + /* note: nothing happens without the \n! */ + snprintf(buffer, sizeof(buffer), "%s\n", mode->Name); + fputs(buffer, file); + fclose(file); + _eglLog(_EGL_INFO, "Set mode to %s in %s", mode->Name, fname); + + /* + * Set display bpp + */ + snprintf(fname, sizeof(fname), "%s/graphics/%s/bits_per_pixel", + sysfs, scrn->fb); + file = fopen(fname, "r+"); + if (!file) { + _eglLog(_EGL_WARNING, "Failed to open %s to set bpp", fname); + return EGL_FALSE; + } + display->bpp = GET_CONFIG_ATTRIB(surf->Base.Config, EGL_BUFFER_SIZE); + display->cpp = display->bpp / 8; + snprintf(buffer, sizeof(buffer), "%d", display->bpp); + fputs(buffer, file); + fclose(file); + + /* + * Unblank display + */ + snprintf(fname, sizeof(fname), "%s/graphics/%s/blank", sysfs, scrn->fb); + file = fopen(fname, "r+"); + if (!file) { + _eglLog(_EGL_WARNING, "Failed to open %s", fname); + return EGL_FALSE; + } + snprintf(buffer, sizeof(buffer), "%d", VESA_NO_BLANKING); + fputs(buffer, file); + fclose(file); + + /* + * Set fbdev buffer virtual size to surface's size. + */ + snprintf(fname, sizeof(fname), "%s/graphics/%s/virtual_size", sysfs, scrn->fb); + file = fopen(fname, "r+"); + snprintf(buffer, sizeof(buffer), "%d,%d", surf->Base.Width, surf->Base.Height); + fputs(buffer, file); + rewind(file); + fgets(buffer, sizeof(buffer), file); + sscanf(buffer, "%d,%d", &display->virtualWidth, &display->virtualHeight); + fclose(file); + + /* + * round up pitch as needed + */ + temp = display->virtualWidth; + switch (display->bpp / 8) { + case 1: temp = (display->virtualWidth + 127) & ~127; break; + case 2: temp = (display->virtualWidth + 31) & ~31; break; + case 3: + case 4: temp = (display->virtualWidth + 15) & ~15; break; + default: + _eglLog(_EGL_WARNING, "Bad display->bpp = %d in _eglDRIShowScreenSurface"); + } + display->virtualWidth = temp; + + /* + * sanity check + */ + if (surf->Base.Width < display->virtualWidth || + surf->Base.Height < display->virtualHeight) { + /* this case _should_ have been caught at the top of this function */ + _eglLog(_EGL_WARNING, "too small of surface in _eglDRIShowScreenSurfaceMESA " + "%d x %d < %d x %d", + surf->Base.Width, + surf->Base.Height, + display->virtualWidth, + display->virtualHeight); + /* + return EGL_FALSE; + */ + } + + /* This used to be done in the _eglDRICreateScreens routine. */ + _eglDRILoadColormap(scrn); + + return EGL_TRUE; +} + + +/** + * Called by eglSwapBuffers via the drv->API.SwapBuffers() pointer. + * + * If the backbuffer is on a videocard, this is extraordinarily slow! + */ +static EGLBoolean +_eglDRISwapBuffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw) +{ + driSurface *drawable = Lookup_driSurface(draw); + + /* this does error checking */ + if (!_eglSwapBuffers(drv, dpy, draw)) + return EGL_FALSE; + + drawable->drawable.swapBuffers(NULL, drawable->drawable.private); + + return EGL_TRUE; +} + + +EGLBoolean +_eglDRIGetDisplayInfo(driDisplay *dpy) +{ + char path[ NAME_MAX ]; + FILE *file; + int i, rc; + drmSetVersion sv; + drm_magic_t magic; + + snprintf( path, sizeof( path ), "%s/graphics/fb%d/device/device", sysfs, dpy->minor ); + file = fopen( path, "r" ); + if (!file) { + _eglLog(_EGL_WARNING, "Unable to open %s", path); + return EGL_FALSE; + } + fgets( path, sizeof( path ), file ); + sscanf( path, "%x", &dpy->chipset ); + fclose( file ); + + sprintf(path, DRM_DEV_NAME, DRM_DIR_NAME, dpy->minor); + if ( ( dpy->drmFD = open(path, O_RDWR, 0) ) < 0 ) { + _eglLog(_EGL_WARNING, "drmOpen failed."); + return EGL_FALSE; + } + + /* Set the interface version, asking for 1.2 */ + sv.drm_di_major = 1; + sv.drm_di_minor = 2; + sv.drm_dd_major = -1; + if ((rc = drmSetInterfaceVersion(dpy->drmFD, &sv))) + return EGL_FALSE; + + /* self authorize */ + if (drmGetMagic(dpy->drmFD, &magic)) + return EGL_FALSE; + if (drmAuthMagic(dpy->drmFD, magic)) + return EGL_FALSE; + + /* Map framebuffer and SAREA */ + for (i = 0; ; i++) { + drm_handle_t handle, offset; + drmSize size; + drmMapType type; + drmMapFlags flags; + int mtrr; + + if (drmGetMap(dpy->drmFD, i, &offset, &size, &type, &flags, + &handle, &mtrr)) + break; + + if (type == DRM_FRAME_BUFFER) { + rc = drmMap( dpy->drmFD, offset, size, (drmAddressPtr) &dpy->pFB); + if (rc < 0) { + _eglLog(_EGL_WARNING, "drmMap DRM_FAME_BUFFER failed"); + return EGL_FALSE; + } + dpy->fbSize = size; + _eglLog(_EGL_INFO, "Found framebuffer size: %d", dpy->fbSize); + } + else if (type == DRM_SHM) { + rc = drmMap(dpy->drmFD, offset, size, (drmAddressPtr) &dpy->pSAREA); + if (rc < 0 ) { + _eglLog(_EGL_WARNING, "drmMap DRM_SHM failed."); + return EGL_FALSE; + } + dpy->SAREASize = SAREA_MAX; + _eglLog(_EGL_DEBUG, "mapped SAREA 0x%08lx to %p, size %d", + (unsigned long) offset, dpy->pSAREA, dpy->SAREASize ); + } + } + + if (!dpy->pFB) { + _eglLog(_EGL_WARNING, "failed to map framebuffer"); + return EGL_FALSE; + } + + if (!dpy->pSAREA) { + /* if this happens, make sure you're using the most recent DRM modules */ + _eglLog(_EGL_WARNING, "failed to map SAREA"); + return EGL_FALSE; + } + + memset( dpy->pSAREA, 0, dpy->SAREASize ); + + return EGL_TRUE; +} + + + /* Return the DRI per screen structure */ +static __DRIscreen * +__eglFindDRIScreen(__DRInativeDisplay *ndpy, int scrn) +{ + driDisplay *disp = (driDisplay *)ndpy; + return &disp->driScreen; +} + + +static GLboolean +__eglCreateContextWithConfig(__DRInativeDisplay* ndpy, int screen, + int configID, void* context, + drm_context_t * hHWContext) +{ + __DRIscreen *pDRIScreen; + __DRIscreen *psp; + + pDRIScreen = __eglFindDRIScreen(ndpy, screen); + if ( (pDRIScreen == NULL) || (pDRIScreen->private == NULL) ) { + return GL_FALSE; + } + psp = (__DRIscreen *) pDRIScreen->private; + if (psp->fd) { + if (drmCreateContext(psp->fd, hHWContext)) { + _eglLog(_EGL_WARNING, "drmCreateContext failed."); + return GL_FALSE; + } + *(void**)context = (void*) *hHWContext; + } +#if 0 + __DRIscreen *pDRIScreen; + __DRIscreen *psp; + + pDRIScreen = __glXFindDRIScreen(dpy, screen); + if ( (pDRIScreen == NULL) || (pDRIScreen->private == NULL) ) { + return GL_FALSE; + } + + psp = (__DRIscreen *) pDRIScreen->private; + + if (psp->fd) { + if (drmCreateContext(psp->fd, hHWContext)) { + _eglLog(_EGL_WARNING, "drmCreateContext failed."); + return GL_FALSE; + } + *(void**)contextID = (void*) *hHWContext; + } +#endif + return GL_TRUE; +} + + +static GLboolean +__eglDestroyContext( __DRInativeDisplay * ndpy, int screen, __DRIid context ) +{ + __DRIscreen *pDRIScreen; + __DRIscreen *psp; + + pDRIScreen = __eglFindDRIScreen(ndpy, screen); + if ( (pDRIScreen == NULL) || (pDRIScreen->private == NULL) ) { + return GL_FALSE; + } + psp = (__DRIscreen *) pDRIScreen->private; + if (psp->fd) + drmDestroyContext(psp->fd, context); + + return GL_TRUE; +} + + +static GLboolean +__eglCreateDrawable(__DRInativeDisplay * ndpy, int screen, + __DRIid drawable, drm_drawable_t * hHWDrawable) +{ + __DRIscreen *pDRIScreen; + __DRIscreen *psp; + + pDRIScreen = __eglFindDRIScreen(ndpy, screen); + if ( (pDRIScreen == NULL) || (pDRIScreen->private == NULL) ) { + return GL_FALSE; + } + psp = (__DRIscreen *) pDRIScreen->private; + if (psp->fd) { + if (drmCreateDrawable(psp->fd, hHWDrawable)) { + _eglLog(_EGL_WARNING, "drmCreateDrawable failed."); + return GL_FALSE; + } + } + return GL_TRUE; +} + + +static GLboolean +__eglDestroyDrawable( __DRInativeDisplay * ndpy, int screen, __DRIid drawable ) +{ + __DRIscreen *pDRIScreen; + __DRIscreen *psp; + + pDRIScreen = __eglFindDRIScreen(ndpy, screen); + if ( (pDRIScreen == NULL) || (pDRIScreen->private == NULL) ) { + return GL_FALSE; + } + psp = (__DRIscreen *) pDRIScreen->private; + if (psp->fd) + drmDestroyDrawable(psp->fd, drawable); + + return GL_TRUE; +} + +static GLboolean +__eglGetDrawableInfo(__DRInativeDisplay * ndpy, int screen, __DRIid drawable, + unsigned int* index, unsigned int* stamp, + int* X, int* Y, int* W, int* H, + int* numClipRects, drm_clip_rect_t ** pClipRects, + int* backX, int* backY, + int* numBackClipRects, drm_clip_rect_t ** pBackClipRects ) +{ + __DRIscreen *pDRIScreen; + __DRIscreen *psp; + driSurface *surf = Lookup_driSurface((EGLSurface) drawable); + + pDRIScreen = __eglFindDRIScreen(ndpy, screen); + + if ( (pDRIScreen == NULL) || (pDRIScreen->private == NULL) ) { + return GL_FALSE; + } + psp = (__DRIscreen *) pDRIScreen->private; + *X = 0; + *Y = 0; + *W = surf->Base.Width; + *H = surf->Base.Height; + + *backX = 0; + *backY = 0; + *numBackClipRects = 0; + *pBackClipRects = NULL; + + *numClipRects = 1; + *pClipRects = malloc(sizeof(**pClipRects)); + **pClipRects = (drm_clip_rect_t){0, 0, surf->Base.Width, surf->Base.Height}; + + psp->pSAREA->drawableTable[0].stamp = 1; + *stamp = 1; +#if 0 + GLXDrawable drawable = (GLXDrawable) draw; + drm_clip_rect_t * cliprect; + Display* display = (Display*)dpy; + __DRIcontext *pcp = (__DRIcontext *)CurrentContext->driContext.private; + if (drawable == 0) { + return GL_FALSE; + } + + cliprect = (drm_clip_rect_t*) malloc(sizeof(drm_clip_rect_t)); + cliprect->x1 = drawable->x; + cliprect->y1 = drawable->y; + cliprect->x2 = drawable->x + drawable->w; + cliprect->y2 = drawable->y + drawable->h; + + /* the drawable index is by client id */ + *index = display->clientID; + + *stamp = pcp->driScreenPriv->pSAREA->drawableTable[display->clientID].stamp; + *x = drawable->x; + *y = drawable->y; + *width = drawable->w; + *height = drawable->h; + *numClipRects = 1; + *pClipRects = cliprect; + + *backX = drawable->x; + *backY = drawable->y; + *numBackClipRects = 0; + *pBackClipRects = 0; +#endif + return GL_TRUE; +} + + +/** + * Implement \c __DRIinterfaceMethods::getProcAddress. + */ +static __DRIfuncPtr +get_proc_address(const char * proc_name) +{ + return NULL; +} + + +/** + * Destroy a linked list of \c __GLcontextModes structures created by + * \c _gl_context_modes_create. + * + * \param modes Linked list of structures to be destroyed. All structres + * in the list will be freed. + */ +static void +__egl_context_modes_destroy(__GLcontextModes *modes) +{ + while ( modes != NULL ) { + __GLcontextModes * const next = modes->next; + + free( modes ); + modes = next; + } +} + + +/** + * Allocate a linked list of \c __GLcontextModes structures. The fields of + * each structure will be initialized to "reasonable" default values. In + * most cases this is the default value defined by table 3.4 of the GLX + * 1.3 specification. This means that most values are either initialized to + * zero or \c GLX_DONT_CARE (which is -1). As support for additional + * extensions is added, the new values will be initialized to appropriate + * values from the extension specification. + * + * \param count Number of structures to allocate. + * \param minimum_size Minimum size of a structure to allocate. This allows + * for differences in the version of the + * \c __GLcontextModes stucture used in libGL and in a + * DRI-based driver. + * \returns A pointer to the first element in a linked list of \c count + * stuctures on success, or \c NULL on failure. + * + * \warning Use of \c minimum_size does \b not guarantee binary compatibility. + * The fundamental assumption is that if the \c minimum_size + * specified by the driver and the size of the \c __GLcontextModes + * structure in libGL is the same, then the meaning of each byte in + * the structure is the same in both places. \b Be \b careful! + * Basically this means that fields have to be added in libGL and + * then propagated to drivers. Drivers should \b never arbitrarilly + * extend the \c __GLcontextModes data-structure. + */ +static __GLcontextModes * +__egl_context_modes_create(unsigned count, size_t minimum_size) +{ + const size_t size = (minimum_size > sizeof( __GLcontextModes )) + ? minimum_size : sizeof( __GLcontextModes ); + __GLcontextModes * base = NULL; + __GLcontextModes ** next; + unsigned i; + + next = & base; + for ( i = 0 ; i < count ; i++ ) { + *next = (__GLcontextModes *) malloc( size ); + if ( *next == NULL ) { + __egl_context_modes_destroy( base ); + base = NULL; + break; + } + + (void) memset( *next, 0, size ); + (*next)->visualID = GLX_DONT_CARE; + (*next)->visualType = GLX_DONT_CARE; + (*next)->visualRating = GLX_NONE; + (*next)->transparentPixel = GLX_NONE; + (*next)->transparentRed = GLX_DONT_CARE; + (*next)->transparentGreen = GLX_DONT_CARE; + (*next)->transparentBlue = GLX_DONT_CARE; + (*next)->transparentAlpha = GLX_DONT_CARE; + (*next)->transparentIndex = GLX_DONT_CARE; + (*next)->xRenderable = GLX_DONT_CARE; + (*next)->fbconfigID = GLX_DONT_CARE; + (*next)->swapMethod = GLX_SWAP_UNDEFINED_OML; + + next = & ((*next)->next); + } + + return base; +} + + +static GLboolean +__eglWindowExists(__DRInativeDisplay *dpy, __DRIid draw) +{ + return EGL_TRUE; +} + + +/** + * Get the unadjusted system time (UST). Currently, the UST is measured in + * microseconds since Epoc. The actual resolution of the UST may vary from + * system to system, and the units may vary from release to release. + * Drivers should not call this function directly. They should instead use + * \c glXGetProcAddress to obtain a pointer to the function. + * + * \param ust Location to store the 64-bit UST + * \returns Zero on success or a negative errno value on failure. + * + * \sa glXGetProcAddress, PFNGLXGETUSTPROC + * + * \since Internal API version 20030317. + */ +static int +__eglGetUST(int64_t *ust) +{ + struct timeval tv; + + if ( ust == NULL ) { + return -EFAULT; + } + + if ( gettimeofday( & tv, NULL ) == 0 ) { + ust[0] = (tv.tv_sec * 1000000) + tv.tv_usec; + return 0; + } + else { + return -errno; + } +} + +/** + * Determine the refresh rate of the specified drawable and display. + * + * \param dpy Display whose refresh rate is to be determined. + * \param drawable Drawable whose refresh rate is to be determined. + * \param numerator Numerator of the refresh rate. + * \param demoninator Denominator of the refresh rate. + * \return If the refresh rate for the specified display and drawable could + * be calculated, True is returned. Otherwise False is returned. + * + * \note This function is implemented entirely client-side. A lot of other + * functionality is required to export GLX_OML_sync_control, so on + * XFree86 this function can be called for direct-rendering contexts + * when GLX_OML_sync_control appears in the client extension string. + */ +static GLboolean +__eglGetMSCRate(__DRInativeDisplay * dpy, __DRIid drawable, + int32_t * numerator, int32_t * denominator) +{ + return EGL_TRUE; +} + + +/** + * Table of functions exported by the loader to the driver. + */ +static const __DRIinterfaceMethods interface_methods = { + get_proc_address, + + __egl_context_modes_create, + __egl_context_modes_destroy, + + __eglFindDRIScreen, + __eglWindowExists, + + __eglCreateContextWithConfig, + __eglDestroyContext, + + __eglCreateDrawable, + __eglDestroyDrawable, + __eglGetDrawableInfo, + + __eglGetUST, + __eglGetMSCRate, +}; + + +static int +__glXGetInternalVersion(void) +{ + return 20050725; +} + +static const char createNewScreenName[] = "__driCreateNewScreen_20050727"; + + +/** + * Do per-display initialization. + */ +EGLBoolean +_eglDRICreateDisplay(driDisplay *dpy, __DRIframebuffer *framebuffer) +{ + PFNCREATENEWSCREENFUNC createNewScreen; + int api_ver = __glXGetInternalVersion(); + __DRIversion ddx_version; + __DRIversion dri_version; + __DRIversion drm_version; + drmVersionPtr version; + + version = drmGetVersion( dpy->drmFD ); + if ( version ) { + drm_version.major = version->version_major; + drm_version.minor = version->version_minor; + drm_version.patch = version->version_patchlevel; + drmFreeVersion( version ); + } + else { + drm_version.major = -1; + drm_version.minor = -1; + drm_version.patch = -1; + } + + /* + * Get device name (like "tdfx") and the ddx version numbers. + * We'll check the version in each DRI driver's "createScreen" + * function. + */ + ddx_version.major = 4; + ddx_version.minor = 0; + ddx_version.patch = 0; + + /* + * Get the DRI X extension version. + */ + dri_version.major = 4; + dri_version.minor = 0; + dri_version.patch = 0; + + createNewScreen = ( PFNCREATENEWSCREENFUNC ) dlsym( dpy->Base.Driver->LibHandle, createNewScreenName ); + if ( !createNewScreen ) { + _eglLog(_EGL_WARNING, "Couldn't find %s function in the driver.", + createNewScreenName ); + return EGL_FALSE; + } + + dpy->driScreen.private = createNewScreen( dpy, 0, &dpy->driScreen, NULL, + &ddx_version, &dri_version, + &drm_version, framebuffer, + dpy->pSAREA, dpy->drmFD, + api_ver, + & interface_methods, + NULL); + if (!dpy->driScreen.private) { + _eglLog(_EGL_WARNING, "egldri.c: DRI create new screen failed"); + return EGL_FALSE; + } + + DRM_UNLOCK( dpy->drmFD, dpy->pSAREA, dpy->serverContext ); + + return EGL_TRUE; +} + + +/** + * Create all the EGL screens for the given display. + */ +EGLBoolean +_eglDRICreateScreens(driDisplay *dpy) +{ + const int numScreens = 1; /* XXX fix this someday */ + int i; + + for (i = 0; i < numScreens; i++) { + char path[ NAME_MAX ]; + FILE *file; + driScreen *s; + + /* Create a screen */ + if ( !( s = ( driScreen * ) calloc( 1, sizeof( *s ) ) ) ) + return EGL_FALSE; + + snprintf( s->fb, NAME_MAX, "fb%d", dpy->minor ); + _eglInitScreen( &s->Base ); + + _eglAddScreen( &dpy->Base, &s->Base ); + + /* Create the screen's mode list */ + snprintf( path, sizeof( path ), "%s/graphics/%s/modes", sysfs, s->fb ); + file = fopen( path, "r" ); + while ( fgets( path, sizeof( path ), file ) ) { + unsigned int x, y, r; + char c; + path[ strlen( path ) - 1 ] = '\0'; /* strip off \n from sysfs */ + sscanf( path, "%c:%ux%u-%u", &c, &x, &y, &r ); + _eglAddNewMode( &s->Base, x, y, r * 1000, path ); + } + fclose( file ); + + /* + * NOTE: we used to set the colormap here, but that didn't work reliably. + * Some entries near the start of the table would get corrupted by later + * mode changes. + */ + } + + return EGL_TRUE; +} + + +EGLBoolean +_eglDRIInitialize(_EGLDriver *drv, EGLDisplay dpy, + EGLint *major, EGLint *minor) +{ + _EGLDisplay *disp = _eglLookupDisplay(dpy); + driDisplay *display; + const char *driverName = (const char *) disp->NativeDisplay; + + assert(disp); + + /* Create new driDisplay object to replace the _EGLDisplay that was + * previously created. + */ + display = calloc(1, sizeof(*display)); + display->Base = *disp; + _eglSaveDisplay(&display->Base); + free(disp); + + *major = 1; + *minor = 0; + + sscanf(driverName + 1, "%d", &display->minor); + + drv->Initialized = EGL_TRUE; + return EGL_TRUE; +} + + +static EGLBoolean +_eglDRITerminate(_EGLDriver *drv, EGLDisplay dpy) +{ + driDisplay *display = Lookup_driDisplay(dpy); + _eglCleanupDisplay(&display->Base);/*rename that function*/ + free(display); + free(drv); + return EGL_TRUE; +} + + +/** + * Plug in the DRI-specific functions into the driver's dispatch table. + * Also, enable some EGL extensions. + */ +void +_eglDRIInitDriverFallbacks(_EGLDriver *drv) +{ + _eglInitDriverFallbacks(drv); + + drv->API.Initialize = _eglDRIInitialize; + drv->API.Terminate = _eglDRITerminate; + drv->API.CreateContext = _eglDRICreateContext; + drv->API.MakeCurrent = _eglDRIMakeCurrent; + drv->API.CreatePbufferSurface = _eglDRICreatePbufferSurface; + drv->API.DestroySurface = _eglDRIDestroySurface; + drv->API.DestroyContext = _eglDRIDestroyContext; + drv->API.CreateScreenSurfaceMESA = _eglDRICreateScreenSurfaceMESA; + drv->API.ShowScreenSurfaceMESA = _eglDRIShowScreenSurfaceMESA; + drv->API.SwapBuffers = _eglDRISwapBuffers; + + /* enable supported extensions */ + drv->Extensions.MESA_screen_surface = EGL_TRUE; + drv->Extensions.MESA_copy_context = EGL_TRUE; +} diff --git a/src/egl/drivers/dri/egldri.h b/src/egl/drivers/dri/egldri.h new file mode 100644 index 0000000000..54a9a4ea26 --- /dev/null +++ b/src/egl/drivers/dri/egldri.h @@ -0,0 +1,116 @@ +#ifndef EGLDRI_INCLUDED +#define EGLDRI_INCLUDED + +#include <stdlib.h> +#include <string.h> +#include <stdint.h> +#include "egldisplay.h" +#include "eglscreen.h" +#include "eglsurface.h" +#include "eglcontext.h" + +#include "dri_util.h" +#include "drm_sarea.h" + +/** + * dri display-specific driver class derived from _EGLDisplay + */ +typedef struct dri_display +{ + _EGLDisplay Base; /**< base class */ + void *pFB; + int drmFD; /**< \brief DRM device file descriptor */ + int minor; + unsigned long hFrameBuffer; + + int virtualWidth; + int virtualHeight; + int fbSize; + int bpp; + int cpp; + int card_type; + int SAREASize; + drm_sarea_t *pSAREA; + unsigned int serverContext; /**< \brief DRM context only active on server */ + unsigned long FBStart; /**< \brief physical address of the framebuffer */ + void *driverClientMsg; + int driverClientMsgSize; + unsigned chipset; + void *driverPrivate; + drm_magic_t magic; + + __DRIscreen driScreen; + +} driDisplay; + + +/** + * dri driver-specific screen class derived from _EGLScreen + */ +typedef struct dri_screen +{ + _EGLScreen Base; + char fb[NAME_MAX]; /** the screen name, like "fb0" */ +} driScreen; + + +/** + * dri driver-specific surface class derived from _EGLSurface + */ +typedef struct dri_surface +{ + _EGLSurface Base; /* base class/object */ + __DRIdrawable drawable; +} driSurface; + + +/** + * dri driver-specific context class derived from _EGLContext + */ +typedef struct dri_context +{ + _EGLContext Base; /* base class/object */ + __DRIcontext driContext; /**< \brief context dependent methods */ +} driContext; + + + +static inline driDisplay * +Lookup_driDisplay(EGLDisplay dpy) +{ + _EGLDisplay *d = _eglLookupDisplay(dpy); + return (driDisplay *) d; +} + + +static inline driScreen * +Lookup_driScreen(EGLDisplay dpy, EGLScreenMESA screen) +{ + _EGLScreen *s = _eglLookupScreen(dpy, screen); + return (driScreen *) s; +} + + +static inline driContext * +Lookup_driContext(EGLContext ctx) +{ + _EGLContext *c = _eglLookupContext(ctx); + return (driContext *) c; +} + + +static inline driSurface * +Lookup_driSurface(EGLSurface surf) +{ + _EGLSurface *s = _eglLookupSurface(surf); + return (driSurface *) s; +} + +extern void _eglDRIInitDriverFallbacks(_EGLDriver *drv); +extern EGLBoolean _eglDRIShowScreenSurfaceMESA(_EGLDriver *drv, EGLDisplay dpy, EGLScreenMESA screen, EGLSurface surface, EGLModeMESA m); +extern EGLBoolean _eglDRIInitialize(_EGLDriver *drv, EGLDisplay dpy, EGLint *major, EGLint *minor); +extern EGLBoolean _eglDRIGetDisplayInfo(driDisplay *dpy); +extern EGLBoolean _eglDRICreateDisplay(driDisplay *dpy, __DRIframebuffer *framebuffer); +extern EGLBoolean _eglDRICreateScreens(driDisplay *dpy); + +#endif /* EGLDRI_INCLUDED */ diff --git a/src/egl/drivers/dri2/Makefile b/src/egl/drivers/dri2/Makefile new file mode 100644 index 0000000000..4e760aec4c --- /dev/null +++ b/src/egl/drivers/dri2/Makefile @@ -0,0 +1,18 @@ +# src/egl/drivers/dri2/Makefile + +TOP = ../../../.. +include $(TOP)/configs/current + +EGL_DRIVER = egl_dri2.so +EGL_SOURCES = egl_dri2.c + +EGL_INCLUDES = \ + -I$(TOP)/include \ + -I$(TOP)/src/egl/main \ + -I$(TOP)/src/mapi \ + -DDEFAULT_DRIVER_DIR=\"$(DRI_DRIVER_SEARCH_DIR)\" \ + $(EGL_DRI2_CFLAGS) + +EGL_LIBS = $(EGL_DRI2_LIBS) + +include ../Makefile.template diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c new file mode 100644 index 0000000000..aa384cb117 --- /dev/null +++ b/src/egl/drivers/dri2/egl_dri2.c @@ -0,0 +1,1474 @@ +/* + * Copyright © 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Authors: + * Kristian Høgsberg <krh@bitplanet.net> + */ + +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <limits.h> +#include <dlfcn.h> +#include <fcntl.h> +#include <errno.h> +#include <unistd.h> +#include <xf86drm.h> +#include <GL/gl.h> +#include <GL/internal/dri_interface.h> +#include <xcb/xcb.h> +#include <xcb/dri2.h> +#include <xcb/xfixes.h> +#include <X11/Xlib-xcb.h> + +#include <glapi/glapi.h> +#include "eglconfig.h" +#include "eglcontext.h" +#include "egldisplay.h" +#include "egldriver.h" +#include "eglcurrent.h" +#include "egllog.h" +#include "eglsurface.h" +#include "eglimage.h" + +#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) + +struct dri2_egl_driver +{ + _EGLDriver base; + + void (*glFlush)(void); +}; + +struct dri2_egl_display +{ + xcb_connection_t *conn; + int dri2_major; + int dri2_minor; + __DRIscreen *dri_screen; + const __DRIconfig **driver_configs; + void *driver; + __DRIcoreExtension *core; + __DRIdri2Extension *dri2; + __DRI2flushExtension *flush; + __DRItexBufferExtension *tex_buffer; + __DRIimageExtension *image; + int fd; + + char *device_name; + char *driver_name; + + __DRIdri2LoaderExtension loader_extension; + __DRIimageLookupExtension image_lookup_extension; + const __DRIextension *extensions[3]; +}; + +struct dri2_egl_context +{ + _EGLContext base; + __DRIcontext *dri_context; +}; + +struct dri2_egl_surface +{ + _EGLSurface base; + __DRIdrawable *dri_drawable; + xcb_drawable_t drawable; + __DRIbuffer buffers[5]; + int buffer_count; + xcb_xfixes_region_t region; + int have_fake_front; + int swap_interval; +}; + +struct dri2_egl_config +{ + _EGLConfig base; + const __DRIconfig *dri_config; +}; + +struct dri2_egl_image +{ + _EGLImage base; + __DRIimage *dri_image; +}; + +/* standard typecasts */ +_EGL_DRIVER_STANDARD_TYPECASTS(dri2_egl) +_EGL_DRIVER_TYPECAST(dri2_egl_image, _EGLImage, obj) + +EGLint dri2_to_egl_attribute_map[] = { + 0, + EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */ + EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */ + EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */ + EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */ + EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */ + EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */ + EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */ + 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */ + EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */ + EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */ + 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */ + 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */ + 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */ + 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */ + EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */ + EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */ + 0, /* __DRI_ATTRIB_RENDER_TYPE, */ + 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */ + 0, /* __DRI_ATTRIB_CONFORMANT */ + 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */ + 0, /* __DRI_ATTRIB_STEREO */ + 0, /* __DRI_ATTRIB_AUX_BUFFERS */ + 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */ + 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */ + 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */ + 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */ + 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */ + 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */ + 0, /* __DRI_ATTRIB_FLOAT_MODE */ + 0, /* __DRI_ATTRIB_RED_MASK */ + 0, /* __DRI_ATTRIB_GREEN_MASK */ + 0, /* __DRI_ATTRIB_BLUE_MASK */ + 0, /* __DRI_ATTRIB_ALPHA_MASK */ + EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */ + EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */ + EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */ + 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */ + 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */ + 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */ + 0, /* __DRI_ATTRIB_SWAP_METHOD */ + EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */ + EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */ + 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */ + 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */ + 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */ + 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */ + EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */ +}; + +static void +dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id, + int depth, xcb_visualtype_t *visual) +{ + struct dri2_egl_config *conf; + struct dri2_egl_display *dri2_dpy; + _EGLConfig base; + unsigned int attrib, value, double_buffer; + EGLint key, bind_to_texture_rgb, bind_to_texture_rgba; + int i; + + dri2_dpy = disp->DriverData; + _eglInitConfig(&base, disp, id); + + i = 0; + while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) { + switch (attrib) { + case __DRI_ATTRIB_RENDER_TYPE: + if (value & __DRI_ATTRIB_RGBA_BIT) + value = EGL_RGB_BUFFER; + else if (value & __DRI_ATTRIB_LUMINANCE_BIT) + value = EGL_LUMINANCE_BUFFER; + else + /* not valid */; + _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value); + break; + + case __DRI_ATTRIB_CONFIG_CAVEAT: + if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG) + value = EGL_NON_CONFORMANT_CONFIG; + else if (value & __DRI_ATTRIB_SLOW_BIT) + value = EGL_SLOW_CONFIG; + else + value = EGL_NONE; + _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value); + break; + + case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB: + bind_to_texture_rgb = value; + break; + + case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA: + bind_to_texture_rgba = value; + break; + + case __DRI_ATTRIB_DOUBLE_BUFFER: + double_buffer = value; + break; + + default: + key = dri2_to_egl_attribute_map[attrib]; + if (key != 0) + _eglSetConfigKey(&base, key, value); + break; + } + } + + /* In EGL, double buffer or not isn't a config attribute. Pixmaps + * surfaces are always single buffered, pbuffer surfaces are always + * back buffers and windows can be either, selected by passing an + * attribute at window surface construction time. To support this + * we ignore all double buffer configs and manipulate the buffer we + * return in the getBuffer callback to get the behaviour we want. */ + + if (double_buffer) + return; + + if (visual != NULL) { + if (depth != _eglGetConfigKey(&base, EGL_BUFFER_SIZE)) + return; + + _eglSetConfigKey(&base, EGL_SURFACE_TYPE, + EGL_WINDOW_BIT | EGL_PIXMAP_BIT | EGL_PBUFFER_BIT | + EGL_SWAP_BEHAVIOR_PRESERVED_BIT); + + _eglSetConfigKey(&base, EGL_NATIVE_VISUAL_ID, visual->visual_id); + _eglSetConfigKey(&base, EGL_NATIVE_VISUAL_TYPE, visual->_class); + } else { + _eglSetConfigKey(&base, EGL_SURFACE_TYPE, + EGL_PIXMAP_BIT | EGL_PBUFFER_BIT); + } + + _eglSetConfigKey(&base, EGL_NATIVE_RENDERABLE, EGL_TRUE); + _eglSetConfigKey(&base, EGL_BIND_TO_TEXTURE_RGB, bind_to_texture_rgb); + if (_eglGetConfigKey(&base, EGL_ALPHA_SIZE) > 0) + _eglSetConfigKey(&base, + EGL_BIND_TO_TEXTURE_RGBA, bind_to_texture_rgba); + + _eglSetConfigKey(&base, EGL_RENDERABLE_TYPE, disp->ClientAPIsMask); + _eglSetConfigKey(&base, EGL_CONFORMANT, disp->ClientAPIsMask); + + if (!_eglValidateConfig(&base, EGL_FALSE)) { + _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id); + return; + } + + conf = malloc(sizeof *conf); + if (conf != NULL) { + memcpy(&conf->base, &base, sizeof base); + conf->dri_config = dri_config; + _eglAddConfig(disp, &conf->base); + } +} + +/** + * Process list of buffer received from the server + * + * Processes the list of buffers received in a reply from the server to either + * \c DRI2GetBuffers or \c DRI2GetBuffersWithFormat. + */ +static void +dri2_process_buffers(struct dri2_egl_surface *dri2_surf, + xcb_dri2_dri2_buffer_t *buffers, unsigned count) +{ + struct dri2_egl_display *dri2_dpy = + dri2_egl_display(dri2_surf->base.Resource.Display); + xcb_rectangle_t rectangle; + int i; + + dri2_surf->buffer_count = count; + dri2_surf->have_fake_front = 0; + + /* This assumes the DRI2 buffer attachment tokens matches the + * __DRIbuffer tokens. */ + for (i = 0; i < count; i++) { + dri2_surf->buffers[i].attachment = buffers[i].attachment; + dri2_surf->buffers[i].name = buffers[i].name; + dri2_surf->buffers[i].pitch = buffers[i].pitch; + dri2_surf->buffers[i].cpp = buffers[i].cpp; + dri2_surf->buffers[i].flags = buffers[i].flags; + + /* We only use the DRI drivers single buffer configs. This + * means that if we try to render to a window, DRI2 will give us + * the fake front buffer, which we'll use as a back buffer. + * Note that EGL doesn't require that several clients rendering + * to the same window must see the same aux buffers. */ + if (dri2_surf->buffers[i].attachment == __DRI_BUFFER_FAKE_FRONT_LEFT) + dri2_surf->have_fake_front = 1; + } + + if (dri2_surf->region != XCB_NONE) + xcb_xfixes_destroy_region(dri2_dpy->conn, dri2_surf->region); + + rectangle.x = 0; + rectangle.y = 0; + rectangle.width = dri2_surf->base.Width; + rectangle.height = dri2_surf->base.Height; + dri2_surf->region = xcb_generate_id(dri2_dpy->conn); + xcb_xfixes_create_region(dri2_dpy->conn, dri2_surf->region, 1, &rectangle); +} + +static __DRIbuffer * +dri2_get_buffers(__DRIdrawable * driDrawable, + int *width, int *height, + unsigned int *attachments, int count, + int *out_count, void *loaderPrivate) +{ + struct dri2_egl_surface *dri2_surf = loaderPrivate; + struct dri2_egl_display *dri2_dpy = + dri2_egl_display(dri2_surf->base.Resource.Display); + xcb_dri2_dri2_buffer_t *buffers; + xcb_dri2_get_buffers_reply_t *reply; + xcb_dri2_get_buffers_cookie_t cookie; + + cookie = xcb_dri2_get_buffers_unchecked (dri2_dpy->conn, + dri2_surf->drawable, + count, count, attachments); + reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn, cookie, NULL); + buffers = xcb_dri2_get_buffers_buffers (reply); + if (buffers == NULL) + return NULL; + + *out_count = reply->count; + dri2_surf->base.Width = *width = reply->width; + dri2_surf->base.Height = *height = reply->height; + dri2_process_buffers(dri2_surf, buffers, *out_count); + + free(reply); + + return dri2_surf->buffers; +} + +static void +dri2_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate) +{ + /* FIXME: Does EGL support front buffer rendering at all? */ + +#if 0 + struct dri2_egl_surface *dri2_surf = loaderPrivate; + + dri2WaitGL(dri2_surf); +#endif +} + +static __DRIimage * +dri2_lookup_egl_image(__DRIcontext *context, void *image, void *data) +{ + struct dri2_egl_context *dri2_ctx = data; + _EGLDisplay *disp = dri2_ctx->base.Resource.Display; + struct dri2_egl_image *dri2_img; + _EGLImage *img; + + img = _eglLookupImage(image, disp); + if (img == NULL) { + _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image"); + return NULL; + } + + dri2_img = dri2_egl_image(image); + + return dri2_img->dri_image; +} + +static __DRIbuffer * +dri2_get_buffers_with_format(__DRIdrawable * driDrawable, + int *width, int *height, + unsigned int *attachments, int count, + int *out_count, void *loaderPrivate) +{ + struct dri2_egl_surface *dri2_surf = loaderPrivate; + struct dri2_egl_display *dri2_dpy = + dri2_egl_display(dri2_surf->base.Resource.Display); + xcb_dri2_dri2_buffer_t *buffers; + xcb_dri2_get_buffers_with_format_reply_t *reply; + xcb_dri2_get_buffers_with_format_cookie_t cookie; + xcb_dri2_attach_format_t *format_attachments; + + format_attachments = (xcb_dri2_attach_format_t *) attachments; + cookie = xcb_dri2_get_buffers_with_format_unchecked (dri2_dpy->conn, + dri2_surf->drawable, + count, count, + format_attachments); + + reply = xcb_dri2_get_buffers_with_format_reply (dri2_dpy->conn, + cookie, NULL); + if (reply == NULL) + return NULL; + + buffers = xcb_dri2_get_buffers_with_format_buffers (reply); + dri2_surf->base.Width = *width = reply->width; + dri2_surf->base.Height = *height = reply->height; + *out_count = reply->count; + dri2_process_buffers(dri2_surf, buffers, *out_count); + + free(reply); + + return dri2_surf->buffers; +} + +static const char dri_driver_path[] = DEFAULT_DRIVER_DIR; + +struct dri2_extension_match { + const char *name; + int version; + int offset; +}; + +static struct dri2_extension_match dri2_driver_extensions[] = { + { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) }, + { __DRI_DRI2, 1, offsetof(struct dri2_egl_display, dri2) }, + { NULL } +}; + +static struct dri2_extension_match dri2_core_extensions[] = { + { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) }, + { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) }, + { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) }, + { NULL } +}; + +static EGLBoolean +dri2_bind_extensions(struct dri2_egl_display *dri2_dpy, + struct dri2_extension_match *matches, + const __DRIextension **extensions) +{ + int i, j, ret = EGL_TRUE; + void *field; + + for (i = 0; extensions[i]; i++) { + _eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name); + for (j = 0; matches[j].name; j++) { + if (strcmp(extensions[i]->name, matches[j].name) == 0 && + extensions[i]->version >= matches[j].version) { + field = ((char *) dri2_dpy + matches[j].offset); + *(const __DRIextension **) field = extensions[i]; + _eglLog(_EGL_INFO, "DRI2: found extension %s version %d", + extensions[i]->name, extensions[i]->version); + } + } + } + + for (j = 0; matches[j].name; j++) { + field = ((char *) dri2_dpy + matches[j].offset); + if (*(const __DRIextension **) field == NULL) { + _eglLog(_EGL_FATAL, "DRI2: did not find extension %s version %d", + matches[j].name, matches[j].version); + ret = EGL_FALSE; + } + } + + return ret; +} + +static char * +dri2_strndup(const char *s, int length) +{ + char *d; + + d = malloc(length + 1); + if (d == NULL) + return NULL; + + memcpy(d, s, length); + d[length] = '\0'; + + return d; +} + +static EGLBoolean +dri2_connect(struct dri2_egl_display *dri2_dpy) +{ + xcb_xfixes_query_version_reply_t *xfixes_query; + xcb_xfixes_query_version_cookie_t xfixes_query_cookie; + xcb_dri2_query_version_reply_t *dri2_query; + xcb_dri2_query_version_cookie_t dri2_query_cookie; + xcb_dri2_connect_reply_t *connect; + xcb_dri2_connect_cookie_t connect_cookie; + xcb_generic_error_t *error; + xcb_screen_iterator_t s; + + xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_xfixes_id); + xcb_prefetch_extension_data (dri2_dpy->conn, &xcb_dri2_id); + + xfixes_query_cookie = xcb_xfixes_query_version(dri2_dpy->conn, + XCB_XFIXES_MAJOR_VERSION, + XCB_XFIXES_MINOR_VERSION); + + dri2_query_cookie = xcb_dri2_query_version (dri2_dpy->conn, + XCB_DRI2_MAJOR_VERSION, + XCB_DRI2_MINOR_VERSION); + + s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn)); + connect_cookie = xcb_dri2_connect_unchecked (dri2_dpy->conn, + s.data->root, + XCB_DRI2_DRIVER_TYPE_DRI); + + xfixes_query = + xcb_xfixes_query_version_reply (dri2_dpy->conn, + xfixes_query_cookie, &error); + if (xfixes_query == NULL || + error != NULL || xfixes_query->major_version < 2) { + _eglLog(_EGL_FATAL, "DRI2: failed to query xfixes version"); + free(error); + return EGL_FALSE; + } + free(xfixes_query); + + dri2_query = + xcb_dri2_query_version_reply (dri2_dpy->conn, dri2_query_cookie, &error); + if (dri2_query == NULL || error != NULL) { + _eglLog(_EGL_FATAL, "DRI2: failed to query version"); + free(error); + return EGL_FALSE; + } + dri2_dpy->dri2_major = dri2_query->major_version; + dri2_dpy->dri2_minor = dri2_query->minor_version; + free(dri2_query); + + connect = xcb_dri2_connect_reply (dri2_dpy->conn, connect_cookie, NULL); + if (connect == NULL || + connect->driver_name_length + connect->device_name_length == 0) { + _eglLog(_EGL_FATAL, "DRI2: failed to authenticate"); + return EGL_FALSE; + } + + dri2_dpy->device_name = + dri2_strndup(xcb_dri2_connect_device_name (connect), + xcb_dri2_connect_device_name_length (connect)); + + dri2_dpy->driver_name = + dri2_strndup(xcb_dri2_connect_driver_name (connect), + xcb_dri2_connect_driver_name_length (connect)); + + if (dri2_dpy->device_name == NULL || dri2_dpy->driver_name == NULL) { + free(dri2_dpy->device_name); + free(dri2_dpy->driver_name); + free(connect); + return EGL_FALSE; + } + free(connect); + + return EGL_TRUE; +} + +static EGLBoolean +dri2_authenticate(struct dri2_egl_display *dri2_dpy) +{ + xcb_dri2_authenticate_reply_t *authenticate; + xcb_dri2_authenticate_cookie_t authenticate_cookie; + xcb_screen_iterator_t s; + drm_magic_t magic; + + if (drmGetMagic(dri2_dpy->fd, &magic)) { + _eglLog(_EGL_FATAL, "DRI2: failed to get drm magic"); + return EGL_FALSE; + } + + s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn)); + authenticate_cookie = + xcb_dri2_authenticate_unchecked(dri2_dpy->conn, s.data->root, magic); + authenticate = + xcb_dri2_authenticate_reply(dri2_dpy->conn, authenticate_cookie, NULL); + if (authenticate == NULL || !authenticate->authenticated) { + _eglLog(_EGL_FATAL, "DRI2: failed to authenticate"); + free(authenticate); + return EGL_FALSE; + } + + free(authenticate); + + return EGL_TRUE; +} + +static EGLBoolean +dri2_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy, + _EGLDisplay *disp) +{ + xcb_screen_iterator_t s; + xcb_depth_iterator_t d; + xcb_visualtype_t *visuals; + int i, j, id; + + s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn)); + d = xcb_screen_allowed_depths_iterator(s.data); + id = 1; + while (d.rem > 0) { + EGLBoolean class_added[6] = { 0, }; + + visuals = xcb_depth_visuals(d.data); + for (i = 0; i < xcb_depth_visuals_length(d.data); i++) { + if (class_added[visuals[i]._class]) + continue; + + class_added[visuals[i]._class] = EGL_TRUE; + for (j = 0; dri2_dpy->driver_configs[j]; j++) + dri2_add_config(disp, dri2_dpy->driver_configs[j], + id++, d.data->depth, &visuals[i]); + } + + xcb_depth_next(&d); + } + + if (!disp->NumConfigs) { + _eglLog(_EGL_WARNING, "DRI2: failed to create any config"); + return EGL_FALSE; + } + + return EGL_TRUE; +} + +static EGLBoolean +dri2_load_driver(_EGLDisplay *disp) +{ + struct dri2_egl_display *dri2_dpy = disp->DriverData; + const __DRIextension **extensions; + char path[PATH_MAX], *search_paths, *p, *next, *end; + + search_paths = NULL; + if (geteuid() == getuid()) { + /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */ + search_paths = getenv("LIBGL_DRIVERS_PATH"); + } + if (search_paths == NULL) + search_paths = DEFAULT_DRIVER_DIR; + + dri2_dpy->driver = NULL; + end = search_paths + strlen(search_paths); + for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) { + int len; + next = strchr(p, ':'); + if (next == NULL) + next = end; + + len = next - p; +#if GLX_USE_TLS + snprintf(path, sizeof path, + "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name); + dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL); +#endif + if (dri2_dpy->driver == NULL) { + snprintf(path, sizeof path, + "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name); + dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL); + if (dri2_dpy->driver == NULL) + _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror()); + } + } + + if (dri2_dpy->driver == NULL) { + _eglLog(_EGL_WARNING, + "DRI2: failed to open any driver (search paths %s)", + search_paths); + return EGL_FALSE; + } + + _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path); + extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS); + if (extensions == NULL) { + _eglLog(_EGL_WARNING, + "DRI2: driver exports no extensions (%s)", dlerror()); + dlclose(dri2_dpy->driver); + return EGL_FALSE; + } + + if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) { + dlclose(dri2_dpy->driver); + return EGL_FALSE; + } + + return EGL_TRUE; +} + + +/** + * Called via eglInitialize(), GLX_drv->API.Initialize(). + */ +static EGLBoolean +dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp, + EGLint *major, EGLint *minor) +{ + const __DRIextension **extensions; + struct dri2_egl_display *dri2_dpy; + unsigned int api_mask; + + dri2_dpy = malloc(sizeof *dri2_dpy); + if (!dri2_dpy) + return _eglError(EGL_BAD_ALLOC, "eglInitialize"); + + disp->DriverData = (void *) dri2_dpy; + if (disp->NativeDisplay == NULL) { + dri2_dpy->conn = xcb_connect(0, 0); + } else { + dri2_dpy->conn = XGetXCBConnection(disp->NativeDisplay); + } + + if (xcb_connection_has_error(dri2_dpy->conn)) { + _eglLog(_EGL_WARNING, "DRI2: xcb_connect failed"); + goto cleanup_dpy; + } + + if (dri2_dpy->conn) { + if (!dri2_connect(dri2_dpy)) + goto cleanup_conn; + } + + if (!dri2_load_driver(disp)) + goto cleanup_conn; + + dri2_dpy->fd = open(dri2_dpy->device_name, O_RDWR); + if (dri2_dpy->fd == -1) { + _eglLog(_EGL_WARNING, + "DRI2: could not open %s (%s)", dri2_dpy->device_name, + strerror(errno)); + goto cleanup_driver; + } + + if (dri2_dpy->conn) { + if (!dri2_authenticate(dri2_dpy)) + goto cleanup_fd; + } + + if (dri2_dpy->dri2_minor >= 1) { + dri2_dpy->loader_extension.base.name = __DRI_DRI2_LOADER; + dri2_dpy->loader_extension.base.version = 3; + dri2_dpy->loader_extension.getBuffers = dri2_get_buffers; + dri2_dpy->loader_extension.flushFrontBuffer = dri2_flush_front_buffer; + dri2_dpy->loader_extension.getBuffersWithFormat = + dri2_get_buffers_with_format; + } else { + dri2_dpy->loader_extension.base.name = __DRI_DRI2_LOADER; + dri2_dpy->loader_extension.base.version = 2; + dri2_dpy->loader_extension.getBuffers = dri2_get_buffers; + dri2_dpy->loader_extension.flushFrontBuffer = dri2_flush_front_buffer; + dri2_dpy->loader_extension.getBuffersWithFormat = NULL; + } + + dri2_dpy->image_lookup_extension.base.name = __DRI_IMAGE_LOOKUP; + dri2_dpy->image_lookup_extension.base.version = 1; + dri2_dpy->image_lookup_extension.lookupEGLImage = dri2_lookup_egl_image; + + dri2_dpy->extensions[0] = &dri2_dpy->loader_extension.base; + dri2_dpy->extensions[1] = &dri2_dpy->image_lookup_extension.base; + dri2_dpy->extensions[2] = NULL; + + dri2_dpy->dri_screen = + dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions, + &dri2_dpy->driver_configs, dri2_dpy); + + if (dri2_dpy->dri_screen == NULL) { + _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen"); + goto cleanup_fd; + } + + extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen); + if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions)) + goto cleanup_dri_screen; + + if (dri2_dpy->dri2->base.version >= 2) + api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen); + else + api_mask = __DRI_API_OPENGL; + + disp->ClientAPIsMask = 0; + if (api_mask & (1 <<__DRI_API_OPENGL)) + disp->ClientAPIsMask |= EGL_OPENGL_BIT; + if (api_mask & (1 <<__DRI_API_GLES)) + disp->ClientAPIsMask |= EGL_OPENGL_ES_BIT; + if (api_mask & (1 << __DRI_API_GLES2)) + disp->ClientAPIsMask |= EGL_OPENGL_ES2_BIT; + + if (dri2_dpy->conn) { + if (!dri2_add_configs_for_visuals(dri2_dpy, disp)) + goto cleanup_configs; + } + + disp->Extensions.KHR_image_base = EGL_TRUE; + disp->Extensions.KHR_image_pixmap = EGL_TRUE; + disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE; + disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE; + disp->Extensions.NOK_swap_region = EGL_TRUE; + disp->Extensions.NOK_texture_from_pixmap = EGL_TRUE; + + /* we're supporting EGL 1.4 */ + *major = 1; + *minor = 4; + + return EGL_TRUE; + + cleanup_configs: + _eglCleanupDisplay(disp); + cleanup_dri_screen: + dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen); + cleanup_fd: + close(dri2_dpy->fd); + cleanup_driver: + dlclose(dri2_dpy->driver); + cleanup_conn: + if (disp->NativeDisplay == NULL) + xcb_disconnect(dri2_dpy->conn); + cleanup_dpy: + free(dri2_dpy); + + return EGL_FALSE; +} + +/** + * Called via eglTerminate(), drv->API.Terminate(). + */ +static EGLBoolean +dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + + _eglReleaseDisplayResources(drv, disp); + _eglCleanupDisplay(disp); + + dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen); + close(dri2_dpy->fd); + dlclose(dri2_dpy->driver); + if (disp->NativeDisplay == NULL) + xcb_disconnect(dri2_dpy->conn); + free(dri2_dpy); + disp->DriverData = NULL; + + return EGL_TRUE; +} + + +/** + * Called via eglCreateContext(), drv->API.CreateContext(). + */ +static _EGLContext * +dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf, + _EGLContext *share_list, const EGLint *attrib_list) +{ + struct dri2_egl_context *dri2_ctx; + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list); + struct dri2_egl_config *dri2_config = dri2_egl_config(conf); + int api; + + dri2_ctx = malloc(sizeof *dri2_ctx); + if (!dri2_ctx) { + _eglError(EGL_BAD_ALLOC, "eglCreateContext"); + return NULL; + } + + if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list)) + goto cleanup; + + switch (dri2_ctx->base.ClientAPI) { + case EGL_OPENGL_ES_API: + switch (dri2_ctx->base.ClientVersion) { + case 1: + api = __DRI_API_GLES; + break; + case 2: + api = __DRI_API_GLES2; + break; + default: + _eglError(EGL_BAD_PARAMETER, "eglCreateContext"); + return NULL; + } + break; + case EGL_OPENGL_API: + api = __DRI_API_OPENGL; + break; + default: + _eglError(EGL_BAD_PARAMETER, "eglCreateContext"); + return NULL; + } + + if (dri2_dpy->dri2->base.version >= 2) { + dri2_ctx->dri_context = + dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen, + api, + dri2_config->dri_config, + dri2_ctx_shared ? + dri2_ctx_shared->dri_context : NULL, + dri2_ctx); + } else if (api == __DRI_API_OPENGL) { + dri2_ctx->dri_context = + dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen, + dri2_config->dri_config, + dri2_ctx_shared ? + dri2_ctx_shared->dri_context : NULL, + dri2_ctx); + } else { + /* fail */ + } + + if (!dri2_ctx->dri_context) + goto cleanup; + + return &dri2_ctx->base; + + cleanup: + free(dri2_ctx); + return NULL; +} + +static EGLBoolean +dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf); + + if (_eglIsSurfaceBound(surf)) + return EGL_TRUE; + + (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable); + + xcb_dri2_destroy_drawable (dri2_dpy->conn, dri2_surf->drawable); + + if (surf->Type == EGL_PBUFFER_BIT) + xcb_free_pixmap (dri2_dpy->conn, dri2_surf->drawable); + + free(surf); + + return EGL_TRUE; +} + +/** + * Called via eglMakeCurrent(), drv->API.MakeCurrent(). + */ +static EGLBoolean +dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf, + _EGLSurface *rsurf, _EGLContext *ctx) +{ + struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv); + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf); + struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf); + struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx); + __DRIdrawable *ddraw, *rdraw; + __DRIcontext *cctx; + + /* bind the new context and return the "orphaned" one */ + if (!_eglBindContext(&ctx, &dsurf, &rsurf)) + return EGL_FALSE; + + /* flush before context switch */ + if (ctx && dri2_drv->glFlush) + dri2_drv->glFlush(); + + ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL; + rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL; + cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL; + + if ((cctx == NULL && ddraw == NULL && rdraw == NULL) || + dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) { + if (dsurf && !_eglIsSurfaceLinked(dsurf)) + dri2_destroy_surface(drv, disp, dsurf); + if (rsurf && rsurf != dsurf && !_eglIsSurfaceLinked(dsurf)) + dri2_destroy_surface(drv, disp, rsurf); + if (ctx != NULL && !_eglIsContextLinked(ctx)) + dri2_dpy->core->unbindContext(dri2_egl_context(ctx)->dri_context); + + return EGL_TRUE; + } else { + _eglBindContext(&ctx, &dsurf, &rsurf); + + return EGL_FALSE; + } +} + +/** + * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface(). + */ +static _EGLSurface * +dri2_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type, + _EGLConfig *conf, EGLNativeWindowType window, + const EGLint *attrib_list) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_config *dri2_conf = dri2_egl_config(conf); + struct dri2_egl_surface *dri2_surf; + xcb_get_geometry_cookie_t cookie; + xcb_get_geometry_reply_t *reply; + xcb_screen_iterator_t s; + xcb_generic_error_t *error; + + dri2_surf = malloc(sizeof *dri2_surf); + if (!dri2_surf) { + _eglError(EGL_BAD_ALLOC, "dri2_create_surface"); + return NULL; + } + + if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list)) + goto cleanup_surf; + + dri2_surf->region = XCB_NONE; + if (type == EGL_PBUFFER_BIT) { + dri2_surf->drawable = xcb_generate_id(dri2_dpy->conn); + s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn)); + xcb_create_pixmap(dri2_dpy->conn, + _eglGetConfigKey(conf, EGL_BUFFER_SIZE), + dri2_surf->drawable, s.data->root, + dri2_surf->base.Width, dri2_surf->base.Height); + } else { + dri2_surf->drawable = window; + } + + dri2_surf->dri_drawable = + (*dri2_dpy->dri2->createNewDrawable) (dri2_dpy->dri_screen, + dri2_conf->dri_config, dri2_surf); + if (dri2_surf->dri_drawable == NULL) { + _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable"); + goto cleanup_pixmap; + } + + xcb_dri2_create_drawable (dri2_dpy->conn, dri2_surf->drawable); + + if (type != EGL_PBUFFER_BIT) { + cookie = xcb_get_geometry (dri2_dpy->conn, dri2_surf->drawable); + reply = xcb_get_geometry_reply (dri2_dpy->conn, cookie, &error); + if (reply == NULL || error != NULL) { + _eglError(EGL_BAD_ALLOC, "xcb_get_geometry"); + free(error); + goto cleanup_dri_drawable; + } + + dri2_surf->base.Width = reply->width; + dri2_surf->base.Height = reply->height; + free(reply); + } + + return &dri2_surf->base; + + cleanup_dri_drawable: + dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable); + cleanup_pixmap: + if (type == EGL_PBUFFER_BIT) + xcb_free_pixmap(dri2_dpy->conn, dri2_surf->drawable); + cleanup_surf: + free(dri2_surf); + + return NULL; +} + +/** + * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface(). + */ +static _EGLSurface * +dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp, + _EGLConfig *conf, EGLNativeWindowType window, + const EGLint *attrib_list) +{ + return dri2_create_surface(drv, disp, EGL_WINDOW_BIT, conf, + window, attrib_list); +} + +static _EGLSurface * +dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp, + _EGLConfig *conf, EGLNativePixmapType pixmap, + const EGLint *attrib_list) +{ + return dri2_create_surface(drv, disp, EGL_PIXMAP_BIT, conf, + pixmap, attrib_list); +} + +static _EGLSurface * +dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp, + _EGLConfig *conf, const EGLint *attrib_list) +{ + return dri2_create_surface(drv, disp, EGL_PBUFFER_BIT, conf, + XCB_WINDOW_NONE, attrib_list); +} + +static EGLBoolean +dri2_copy_region(_EGLDriver *drv, _EGLDisplay *disp, + _EGLSurface *draw, xcb_xfixes_region_t region) +{ + struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv); + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw); + _EGLContext *ctx; + xcb_dri2_copy_region_cookie_t cookie; + + if (dri2_drv->glFlush) { + ctx = _eglGetCurrentContext(); + if (ctx && ctx->DrawSurface == &dri2_surf->base) + dri2_drv->glFlush(); + } + + (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable); + +#if 0 + /* FIXME: Add support for dri swapbuffers, that'll give us swap + * interval and page flipping (at least for fullscreen windows) as + * well as the page flip event. Unless surface->SwapBehavior is + * EGL_BUFFER_PRESERVED. */ +#if __DRI2_FLUSH_VERSION >= 2 + if (pdraw->psc->f) + (*pdraw->psc->f->flushInvalidate)(pdraw->driDrawable); +#endif +#endif + + if (!dri2_surf->have_fake_front) + return EGL_TRUE; + + cookie = xcb_dri2_copy_region_unchecked(dri2_dpy->conn, + dri2_surf->drawable, + region, + XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT, + XCB_DRI2_ATTACHMENT_BUFFER_FAKE_FRONT_LEFT); + free(xcb_dri2_copy_region_reply(dri2_dpy->conn, cookie, NULL)); + + return EGL_TRUE; +} + +static EGLBoolean +dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw) +{ + struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw); + + return dri2_copy_region(drv, disp, draw, dri2_surf->region); +} + +static EGLBoolean +dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw, + EGLint numRects, const EGLint *rects) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw); + EGLBoolean ret; + xcb_xfixes_region_t region; + xcb_rectangle_t rectangles[16]; + int i; + + if (numRects > ARRAY_SIZE(rectangles)) + return dri2_copy_region(drv, disp, draw, dri2_surf->region); + + /* FIXME: Invert y here? */ + for (i = 0; i < numRects; i++) { + rectangles[i].x = rects[i * 4]; + rectangles[i].y = rects[i * 4 + 1]; + rectangles[i].width = rects[i * 4 + 2]; + rectangles[i].height = rects[i * 4 + 3]; + } + + region = xcb_generate_id(dri2_dpy->conn); + xcb_xfixes_create_region(dri2_dpy->conn, region, numRects, rectangles); + ret = dri2_copy_region(drv, disp, draw, region); + xcb_xfixes_destroy_region(dri2_dpy->conn, region); + + return ret; +} + +/* + * Called from eglGetProcAddress() via drv->API.GetProcAddress(). + */ +static _EGLProc +dri2_get_proc_address(_EGLDriver *drv, const char *procname) +{ + /* FIXME: Do we need to support lookup of EGL symbols too? */ + + return (_EGLProc) _glapi_get_proc_address(procname); +} + +static EGLBoolean +dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface); + + /* FIXME: If EGL allows frontbuffer rendering for window surfaces, + * we need to copy fake to real here.*/ + + (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable); + + return EGL_TRUE; +} + +static EGLBoolean +dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine) +{ + if (engine != EGL_CORE_NATIVE_ENGINE) + return _eglError(EGL_BAD_PARAMETER, "eglWaitNative"); + /* glXWaitX(); */ + + return EGL_TRUE; +} + +static void +dri2_unload(_EGLDriver *drv) +{ + struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv); + free(dri2_drv); +} + +static EGLBoolean +dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf, + EGLNativePixmapType target) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf); + xcb_gcontext_t gc; + + (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable); + + gc = xcb_generate_id(dri2_dpy->conn); + xcb_create_gc(dri2_dpy->conn, gc, target, 0, NULL); + xcb_copy_area(dri2_dpy->conn, + dri2_surf->drawable, + target, + gc, + 0, 0, + 0, 0, + dri2_surf->base.Width, + dri2_surf->base.Height); + xcb_free_gc(dri2_dpy->conn, gc); + + return EGL_TRUE; +} + +static EGLBoolean +dri2_bind_tex_image(_EGLDriver *drv, + _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf); + struct dri2_egl_context *dri2_ctx; + _EGLContext *ctx; + GLint format, target; + + ctx = _eglGetCurrentContext(); + dri2_ctx = dri2_egl_context(ctx); + + if (!_eglBindTexImage(drv, disp, surf, buffer)) + return EGL_FALSE; + + switch (dri2_surf->base.TextureFormat) { + case EGL_TEXTURE_RGB: + format = __DRI_TEXTURE_FORMAT_RGB; + break; + case EGL_TEXTURE_RGBA: + format = __DRI_TEXTURE_FORMAT_RGBA; + break; + default: + assert(0); + } + + switch (dri2_surf->base.TextureTarget) { + case EGL_TEXTURE_2D: + target = GL_TEXTURE_2D; + break; + default: + assert(0); + } + + (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context, + target, format, + dri2_surf->dri_drawable); + + return EGL_TRUE; +} + +static EGLBoolean +dri2_release_tex_image(_EGLDriver *drv, + _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer) +{ + return EGL_TRUE; +} + +static _EGLImage * +dri2_create_image_khr_pixmap(_EGLDisplay *disp, _EGLContext *ctx, + EGLClientBuffer buffer, const EGLint *attr_list) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx); + struct dri2_egl_image *dri2_img; + unsigned int attachments[1]; + xcb_drawable_t drawable; + xcb_dri2_get_buffers_cookie_t buffers_cookie; + xcb_dri2_get_buffers_reply_t *buffers_reply; + xcb_dri2_dri2_buffer_t *buffers; + xcb_get_geometry_cookie_t geometry_cookie; + xcb_get_geometry_reply_t *geometry_reply; + xcb_generic_error_t *error; + int stride, format; + + drawable = (xcb_drawable_t) buffer; + xcb_dri2_create_drawable (dri2_dpy->conn, drawable); + attachments[0] = XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT; + buffers_cookie = + xcb_dri2_get_buffers_unchecked (dri2_dpy->conn, + drawable, 1, 1, attachments); + geometry_cookie = xcb_get_geometry (dri2_dpy->conn, drawable); + buffers_reply = xcb_dri2_get_buffers_reply (dri2_dpy->conn, + buffers_cookie, NULL); + buffers = xcb_dri2_get_buffers_buffers (buffers_reply); + if (buffers == NULL) { + return NULL; + } + + geometry_reply = xcb_get_geometry_reply (dri2_dpy->conn, + geometry_cookie, &error); + if (geometry_reply == NULL || error != NULL) { + _eglError(EGL_BAD_ALLOC, "xcb_get_geometry"); + free(error); + free(buffers_reply); + } + + switch (geometry_reply->depth) { + case 16: + format = __DRI_IMAGE_FORMAT_RGB565; + break; + case 24: + format = __DRI_IMAGE_FORMAT_XRGB8888; + break; + case 32: + format = __DRI_IMAGE_FORMAT_ARGB8888; + break; + default: + _eglError(EGL_BAD_PARAMETER, + "dri2_create_image_khr: unsupported pixmap depth"); + free(buffers_reply); + free(geometry_reply); + return NULL; + } + + dri2_img = malloc(sizeof *dri2_img); + if (!dri2_img) { + free(buffers_reply); + free(geometry_reply); + _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr"); + return EGL_NO_IMAGE_KHR; + } + + if (!_eglInitImage(&dri2_img->base, disp, attr_list)) { + free(buffers_reply); + free(geometry_reply); + return EGL_NO_IMAGE_KHR; + } + + stride = buffers[0].pitch / buffers[0].cpp; + dri2_img->dri_image = + dri2_dpy->image->createImageFromName(dri2_ctx->dri_context, + buffers_reply->width, + buffers_reply->height, + format, + buffers[0].name, + stride, + dri2_img); + + free(buffers_reply); + free(geometry_reply); + + return &dri2_img->base; +} + +static _EGLImage * +dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx, + EGLClientBuffer buffer, + const EGLint *attr_list) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx); + struct dri2_egl_image *dri2_img; + GLuint renderbuffer = (GLuint) buffer; + + if (renderbuffer == 0) { + _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr"); + return EGL_NO_IMAGE_KHR; + } + + dri2_img = malloc(sizeof *dri2_img); + if (!dri2_img) { + _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr"); + return EGL_NO_IMAGE_KHR; + } + + if (!_eglInitImage(&dri2_img->base, disp, attr_list)) + return EGL_NO_IMAGE_KHR; + + dri2_img->dri_image = + dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context, + renderbuffer, + dri2_img); + + return &dri2_img->base; +} + +static _EGLImage * +dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp, + _EGLContext *ctx, EGLenum target, + EGLClientBuffer buffer, const EGLint *attr_list) +{ + switch (target) { + case EGL_NATIVE_PIXMAP_KHR: + return dri2_create_image_khr_pixmap(disp, ctx, buffer, attr_list); + case EGL_GL_RENDERBUFFER_KHR: + return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list); + default: + _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr"); + return EGL_NO_IMAGE_KHR; + } +} + +static EGLBoolean +dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image) +{ + struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); + struct dri2_egl_image *dri2_img = dri2_egl_image(image); + + dri2_dpy->image->destroyImage(dri2_img->dri_image); + free(dri2_img); + + return EGL_TRUE; +} + +/** + * This is the main entrypoint into the driver, called by libEGL. + * Create a new _EGLDriver object and init its dispatch table. + */ +_EGLDriver * +_eglMain(const char *args) +{ + struct dri2_egl_driver *dri2_drv; + + dri2_drv = malloc(sizeof *dri2_drv); + if (!dri2_drv) + return NULL; + + memset(dri2_drv, 0, sizeof *dri2_drv); + _eglInitDriverFallbacks(&dri2_drv->base); + dri2_drv->base.API.Initialize = dri2_initialize; + dri2_drv->base.API.Terminate = dri2_terminate; + dri2_drv->base.API.CreateContext = dri2_create_context; + dri2_drv->base.API.MakeCurrent = dri2_make_current; + dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface; + dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface; + dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface; + dri2_drv->base.API.DestroySurface = dri2_destroy_surface; + dri2_drv->base.API.SwapBuffers = dri2_swap_buffers; + dri2_drv->base.API.GetProcAddress = dri2_get_proc_address; + dri2_drv->base.API.WaitClient = dri2_wait_client; + dri2_drv->base.API.WaitNative = dri2_wait_native; + dri2_drv->base.API.CopyBuffers = dri2_copy_buffers; + dri2_drv->base.API.BindTexImage = dri2_bind_tex_image; + dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image; + dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr; + dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr; + dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region; + + dri2_drv->base.Name = "DRI2"; + dri2_drv->base.Unload = dri2_unload; + + dri2_drv->glFlush = + (void (*)(void)) dri2_get_proc_address(&dri2_drv->base, "glFlush"); + + return &dri2_drv->base; +} diff --git a/src/egl/drivers/glx/Makefile b/src/egl/drivers/glx/Makefile new file mode 100644 index 0000000000..d976b91a74 --- /dev/null +++ b/src/egl/drivers/glx/Makefile @@ -0,0 +1,16 @@ +# src/egl/drivers/glx/Makefile + +TOP = ../../../.. +include $(TOP)/configs/current + +EGL_DRIVER = egl_glx.so +EGL_SOURCES = egl_glx.c + +EGL_INCLUDES = \ + -I$(TOP)/include \ + -I$(TOP)/src/egl/main + +EGL_CFLAGS = $(X11_CFLAGS) +EGL_LIBS = $(X11_LIBS) -lGL + +include ../Makefile.template diff --git a/src/egl/drivers/glx/egl_glx.c b/src/egl/drivers/glx/egl_glx.c new file mode 100644 index 0000000000..e08ef5f222 --- /dev/null +++ b/src/egl/drivers/glx/egl_glx.c @@ -0,0 +1,941 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +/** + * This is an EGL driver that wraps GLX. This gives the benefit of being + * completely agnostic of the direct rendering implementation. + * + * Authors: Alan Hourihane <alanh@tungstengraphics.com> + */ + +#include <stdlib.h> +#include <string.h> +#include <X11/Xlib.h> +#include <GL/glx.h> + +#include "eglconfigutil.h" +#include "eglconfig.h" +#include "eglcontext.h" +#include "egldefines.h" +#include "egldisplay.h" +#include "egldriver.h" +#include "eglcurrent.h" +#include "egllog.h" +#include "eglsurface.h" + +#define CALLOC_STRUCT(T) (struct T *) calloc(1, sizeof(struct T)) + +#ifndef GLX_VERSION_1_4 +#error "GL/glx.h must be equal to or greater than GLX 1.4" +#endif + +/** subclass of _EGLDriver */ +struct GLX_egl_driver +{ + _EGLDriver Base; /**< base class */ +}; + + +/** driver data of _EGLDisplay */ +struct GLX_egl_display +{ + Display *dpy; + XVisualInfo *visuals; + GLXFBConfig *fbconfigs; + + int glx_maj, glx_min; + + const char *extensions; + EGLBoolean have_1_3; + EGLBoolean have_make_current_read; + EGLBoolean have_fbconfig; + EGLBoolean have_pbuffer; + + /* GLX_SGIX_pbuffer */ + PFNGLXCREATEGLXPBUFFERSGIXPROC glXCreateGLXPbufferSGIX; + PFNGLXDESTROYGLXPBUFFERSGIXPROC glXDestroyGLXPbufferSGIX; + + /* workaround quirks of different GLX implementations */ + EGLBoolean single_buffered_quirk; + EGLBoolean glx_window_quirk; + +}; + + +/** subclass of _EGLContext */ +struct GLX_egl_context +{ + _EGLContext Base; /**< base class */ + + GLXContext context; +}; + + +/** subclass of _EGLSurface */ +struct GLX_egl_surface +{ + _EGLSurface Base; /**< base class */ + + Drawable drawable; + GLXDrawable glx_drawable; + + void (*destroy)(Display *, GLXDrawable); +}; + + +/** subclass of _EGLConfig */ +struct GLX_egl_config +{ + _EGLConfig Base; /**< base class */ + EGLBoolean double_buffered; + int index; +}; + +/* standard typecasts */ +_EGL_DRIVER_STANDARD_TYPECASTS(GLX_egl) + +static int +GLX_egl_config_index(_EGLConfig *conf) +{ + struct GLX_egl_config *GLX_conf = GLX_egl_config(conf); + return GLX_conf->index; +} + + +#define MAP_ATTRIB(attr, memb) \ + { attr, offsetof(__GLcontextModes, memb) } + + +static const struct { + int attr; + int offset; +} fbconfig_attributes[] = { + /* table 3.1 of GLX 1.4 */ + MAP_ATTRIB(GLX_FBCONFIG_ID, fbconfigID), + MAP_ATTRIB(GLX_BUFFER_SIZE, rgbBits), + MAP_ATTRIB(GLX_LEVEL, level), + MAP_ATTRIB(GLX_DOUBLEBUFFER, doubleBufferMode), + MAP_ATTRIB(GLX_STEREO, stereoMode), + MAP_ATTRIB(GLX_AUX_BUFFERS, numAuxBuffers), + MAP_ATTRIB(GLX_RED_SIZE, redBits), + MAP_ATTRIB(GLX_GREEN_SIZE, greenBits), + MAP_ATTRIB(GLX_BLUE_SIZE, blueBits), + MAP_ATTRIB(GLX_ALPHA_SIZE, alphaBits), + MAP_ATTRIB(GLX_DEPTH_SIZE, depthBits), + MAP_ATTRIB(GLX_STENCIL_SIZE, stencilBits), + MAP_ATTRIB(GLX_ACCUM_RED_SIZE, accumRedBits), + MAP_ATTRIB(GLX_ACCUM_GREEN_SIZE, accumGreenBits), + MAP_ATTRIB(GLX_ACCUM_BLUE_SIZE, accumBlueBits), + MAP_ATTRIB(GLX_ACCUM_ALPHA_SIZE, accumAlphaBits), + MAP_ATTRIB(GLX_SAMPLE_BUFFERS, sampleBuffers), + MAP_ATTRIB(GLX_SAMPLES, samples), + MAP_ATTRIB(GLX_RENDER_TYPE, renderType), + MAP_ATTRIB(GLX_DRAWABLE_TYPE, drawableType), + MAP_ATTRIB(GLX_X_RENDERABLE, xRenderable), + MAP_ATTRIB(GLX_X_VISUAL_TYPE, visualType), + MAP_ATTRIB(GLX_CONFIG_CAVEAT, visualRating), + MAP_ATTRIB(GLX_TRANSPARENT_TYPE, transparentPixel), + MAP_ATTRIB(GLX_TRANSPARENT_INDEX_VALUE, transparentIndex), + MAP_ATTRIB(GLX_TRANSPARENT_RED_VALUE, transparentRed), + MAP_ATTRIB(GLX_TRANSPARENT_GREEN_VALUE, transparentGreen), + MAP_ATTRIB(GLX_TRANSPARENT_BLUE_VALUE, transparentBlue), + MAP_ATTRIB(GLX_TRANSPARENT_ALPHA_VALUE, transparentAlpha), + MAP_ATTRIB(GLX_MAX_PBUFFER_WIDTH, maxPbufferWidth), + MAP_ATTRIB(GLX_MAX_PBUFFER_HEIGHT, maxPbufferHeight), + MAP_ATTRIB(GLX_MAX_PBUFFER_PIXELS, maxPbufferPixels), + MAP_ATTRIB(GLX_VISUAL_ID, visualID), +}; + + +static EGLBoolean +convert_fbconfig(Display *dpy, GLXFBConfig fbconfig, + struct GLX_egl_config *GLX_conf) +{ + __GLcontextModes mode; + int err = 0, attr, val, i; + + memset(&mode, 0, sizeof(mode)); + + for (i = 0; i < ARRAY_SIZE(fbconfig_attributes); i++) { + int offset = fbconfig_attributes[i].offset; + attr = fbconfig_attributes[i].attr; + err = glXGetFBConfigAttrib(dpy, fbconfig, attr, &val); + if (err) { + if (err == GLX_BAD_ATTRIBUTE) { + err = 0; + continue; + } + break; + } + *((int *) ((char *) &mode + offset)) = val; + } + if (err) + return EGL_FALSE; + + /* must have rgba bit */ + if (!(mode.renderType & GLX_RGBA_BIT)) + return EGL_FALSE; + + /* pixmap and pbuffer surfaces must be single-buffered in EGL */ + if (mode.doubleBufferMode) { + mode.drawableType &= ~(GLX_PIXMAP_BIT | GLX_PBUFFER_BIT); + if (!mode.drawableType) + return EGL_FALSE; + } + + mode.rgbMode = GL_TRUE; + mode.haveAccumBuffer = (mode.accumRedBits + + mode.accumGreenBits + + mode.accumBlueBits + + mode.accumAlphaBits > 0); + mode.haveDepthBuffer = (mode.depthBits > 0); + mode.haveStencilBuffer = (mode.stencilBits > 0); + + GLX_conf->double_buffered = (mode.doubleBufferMode != 0); + return _eglConfigFromContextModesRec(&GLX_conf->Base, &mode, + EGL_OPENGL_BIT, EGL_OPENGL_BIT); +} + + +static const struct { + int attr; + int offset; +} visual_attributes[] = { + /* table 3.7 of GLX 1.4 */ + /* no GLX_USE_GL */ + MAP_ATTRIB(GLX_BUFFER_SIZE, rgbBits), + MAP_ATTRIB(GLX_LEVEL, level), + MAP_ATTRIB(GLX_RGBA, rgbMode), + MAP_ATTRIB(GLX_DOUBLEBUFFER, doubleBufferMode), + MAP_ATTRIB(GLX_STEREO, stereoMode), + MAP_ATTRIB(GLX_AUX_BUFFERS, numAuxBuffers), + MAP_ATTRIB(GLX_RED_SIZE, redBits), + MAP_ATTRIB(GLX_GREEN_SIZE, greenBits), + MAP_ATTRIB(GLX_BLUE_SIZE, blueBits), + MAP_ATTRIB(GLX_ALPHA_SIZE, alphaBits), + MAP_ATTRIB(GLX_DEPTH_SIZE, depthBits), + MAP_ATTRIB(GLX_STENCIL_SIZE, stencilBits), + MAP_ATTRIB(GLX_ACCUM_RED_SIZE, accumRedBits), + MAP_ATTRIB(GLX_ACCUM_GREEN_SIZE, accumGreenBits), + MAP_ATTRIB(GLX_ACCUM_BLUE_SIZE, accumBlueBits), + MAP_ATTRIB(GLX_ACCUM_ALPHA_SIZE, accumAlphaBits), + MAP_ATTRIB(GLX_SAMPLE_BUFFERS, sampleBuffers), + MAP_ATTRIB(GLX_SAMPLES, samples), + MAP_ATTRIB(GLX_FBCONFIG_ID, fbconfigID), + /* GLX_EXT_visual_rating */ + MAP_ATTRIB(GLX_VISUAL_CAVEAT_EXT, visualRating), +}; + + +static int +get_visual_type(const XVisualInfo *vis) +{ + int klass; + +#if defined(__cplusplus) || defined(c_plusplus) + klass = vis->c_class; +#else + klass = vis->class; +#endif + + switch (klass) { + case TrueColor: + return GLX_TRUE_COLOR; + case DirectColor: + return GLX_DIRECT_COLOR; + case PseudoColor: + return GLX_PSEUDO_COLOR; + case StaticColor: + return GLX_STATIC_COLOR; + case GrayScale: + return GLX_GRAY_SCALE; + case StaticGray: + return GLX_STATIC_GRAY; + default: + return GLX_NONE; + } +} + + +static EGLBoolean +convert_visual(Display *dpy, XVisualInfo *vinfo, + struct GLX_egl_config *GLX_conf) +{ + __GLcontextModes mode; + int err, attr, val, i; + + /* the visual must support OpenGL */ + err = glXGetConfig(dpy, vinfo, GLX_USE_GL, &val); + if (err || !val) + return EGL_FALSE; + + memset(&mode, 0, sizeof(mode)); + + for (i = 0; i < ARRAY_SIZE(visual_attributes); i++) { + int offset = visual_attributes[i].offset; + attr = visual_attributes[i].attr; + err = glXGetConfig(dpy, vinfo, attr, &val); + if (err) { + if (err == GLX_BAD_ATTRIBUTE) { + err = 0; + continue; + } + break; + } + *((int *) ((char *) &mode + offset)) = val; + } + if (err) + return EGL_FALSE; + + /* must be RGB mode */ + if (!mode.rgbMode) + return EGL_FALSE; + + mode.visualID = vinfo->visualid; + mode.visualType = get_visual_type(vinfo); + mode.redMask = vinfo->red_mask; + mode.greenMask = vinfo->green_mask; + mode.blueMask = vinfo->blue_mask; + + mode.drawableType = GLX_WINDOW_BIT; + /* pixmap surfaces must be single-buffered in EGL */ + if (!mode.doubleBufferMode) + mode.drawableType |= GLX_PIXMAP_BIT; + + mode.renderType = GLX_RGBA_BIT; + mode.xRenderable = GL_TRUE; + mode.haveAccumBuffer = (mode.accumRedBits + + mode.accumGreenBits + + mode.accumBlueBits + + mode.accumAlphaBits > 0); + mode.haveDepthBuffer = (mode.depthBits > 0); + mode.haveStencilBuffer = (mode.stencilBits > 0); + + GLX_conf->double_buffered = (mode.doubleBufferMode != 0); + return _eglConfigFromContextModesRec(&GLX_conf->Base, &mode, + EGL_OPENGL_BIT, EGL_OPENGL_BIT); +} + + +static void +fix_config(struct GLX_egl_display *GLX_dpy, struct GLX_egl_config *GLX_conf) +{ + _EGLConfig *conf = &GLX_conf->Base; + EGLint surface_type, r, g, b, a; + + surface_type = GET_CONFIG_ATTRIB(conf, EGL_SURFACE_TYPE); + if (!GLX_conf->double_buffered && GLX_dpy->single_buffered_quirk) { + /* some GLX impls do not like single-buffered window surface */ + surface_type &= ~EGL_WINDOW_BIT; + /* pbuffer bit is usually not set */ + if (GLX_dpy->have_pbuffer) + surface_type |= EGL_PBUFFER_BIT; + SET_CONFIG_ATTRIB(conf, EGL_SURFACE_TYPE, surface_type); + } + + /* no visual attribs unless window bit is set */ + if (!(surface_type & EGL_WINDOW_BIT)) { + SET_CONFIG_ATTRIB(conf, EGL_NATIVE_VISUAL_ID, 0); + SET_CONFIG_ATTRIB(conf, EGL_NATIVE_VISUAL_TYPE, EGL_NONE); + } + + /* make sure buffer size is set correctly */ + r = GET_CONFIG_ATTRIB(conf, EGL_RED_SIZE); + g = GET_CONFIG_ATTRIB(conf, EGL_GREEN_SIZE); + b = GET_CONFIG_ATTRIB(conf, EGL_BLUE_SIZE); + a = GET_CONFIG_ATTRIB(conf, EGL_ALPHA_SIZE); + SET_CONFIG_ATTRIB(conf, EGL_BUFFER_SIZE, r + g + b + a); +} + + +static EGLBoolean +create_configs(_EGLDisplay *dpy, struct GLX_egl_display *GLX_dpy, + EGLint screen) +{ + EGLint num_configs = 0, i; + EGLint id = 1; + + if (GLX_dpy->have_fbconfig) { + GLX_dpy->fbconfigs = glXGetFBConfigs(GLX_dpy->dpy, screen, &num_configs); + } + else { + XVisualInfo vinfo_template; + long mask; + + vinfo_template.screen = screen; + mask = VisualScreenMask; + GLX_dpy->visuals = XGetVisualInfo(GLX_dpy->dpy, mask, &vinfo_template, + &num_configs); + } + + if (!num_configs) + return EGL_FALSE; + + for (i = 0; i < num_configs; i++) { + struct GLX_egl_config *GLX_conf, template; + EGLBoolean ok; + + memset(&template, 0, sizeof(template)); + _eglInitConfig(&template.Base, dpy, id); + if (GLX_dpy->have_fbconfig) + ok = convert_fbconfig(GLX_dpy->dpy, GLX_dpy->fbconfigs[i], &template); + else + ok = convert_visual(GLX_dpy->dpy, &GLX_dpy->visuals[i], &template); + if (!ok) + continue; + + fix_config(GLX_dpy, &template); + if (!_eglValidateConfig(&template.Base, EGL_FALSE)) { + _eglLog(_EGL_DEBUG, "GLX: failed to validate config %d", i); + continue; + } + + GLX_conf = CALLOC_STRUCT(GLX_egl_config); + if (GLX_conf) { + memcpy(GLX_conf, &template, sizeof(template)); + GLX_conf->index = i; + + _eglAddConfig(dpy, &GLX_conf->Base); + id++; + } + } + + return EGL_TRUE; +} + + +static void +check_extensions(struct GLX_egl_display *GLX_dpy, EGLint screen) +{ + GLX_dpy->extensions = + glXQueryExtensionsString(GLX_dpy->dpy, screen); + if (GLX_dpy->extensions) { + /* glXGetProcAddress is assumed */ + + if (strstr(GLX_dpy->extensions, "GLX_SGI_make_current_read")) { + /* GLX 1.3 entry points are used */ + GLX_dpy->have_make_current_read = EGL_TRUE; + } + + if (strstr(GLX_dpy->extensions, "GLX_SGIX_fbconfig")) { + /* GLX 1.3 entry points are used */ + GLX_dpy->have_fbconfig = EGL_TRUE; + } + + if (strstr(GLX_dpy->extensions, "GLX_SGIX_pbuffer")) { + GLX_dpy->glXCreateGLXPbufferSGIX = (PFNGLXCREATEGLXPBUFFERSGIXPROC) + glXGetProcAddress((const GLubyte *) "glXCreateGLXPbufferSGIX"); + GLX_dpy->glXDestroyGLXPbufferSGIX = (PFNGLXDESTROYGLXPBUFFERSGIXPROC) + glXGetProcAddress((const GLubyte *) "glXDestroyGLXPbufferSGIX"); + + if (GLX_dpy->glXCreateGLXPbufferSGIX && + GLX_dpy->glXDestroyGLXPbufferSGIX && + GLX_dpy->have_fbconfig) + GLX_dpy->have_pbuffer = EGL_TRUE; + } + } + + if (GLX_dpy->glx_maj == 1 && GLX_dpy->glx_min >= 3) { + GLX_dpy->have_1_3 = EGL_TRUE; + GLX_dpy->have_make_current_read = EGL_TRUE; + GLX_dpy->have_fbconfig = EGL_TRUE; + GLX_dpy->have_pbuffer = EGL_TRUE; + } +} + + +static void +check_quirks(struct GLX_egl_display *GLX_dpy, EGLint screen) +{ + const char *vendor; + + GLX_dpy->single_buffered_quirk = EGL_TRUE; + GLX_dpy->glx_window_quirk = EGL_TRUE; + + vendor = glXGetClientString(GLX_dpy->dpy, GLX_VENDOR); + if (vendor && strstr(vendor, "NVIDIA")) { + vendor = glXQueryServerString(GLX_dpy->dpy, screen, GLX_VENDOR); + if (vendor && strstr(vendor, "NVIDIA")) { + _eglLog(_EGL_DEBUG, "disable quirks"); + GLX_dpy->single_buffered_quirk = EGL_FALSE; + GLX_dpy->glx_window_quirk = EGL_FALSE; + } + } +} + + +/** + * Called via eglInitialize(), GLX_drv->API.Initialize(). + */ +static EGLBoolean +GLX_eglInitialize(_EGLDriver *drv, _EGLDisplay *disp, + EGLint *major, EGLint *minor) +{ + struct GLX_egl_display *GLX_dpy; + + GLX_dpy = CALLOC_STRUCT(GLX_egl_display); + if (!GLX_dpy) + return _eglError(EGL_BAD_ALLOC, "eglInitialize"); + + GLX_dpy->dpy = (Display *) disp->NativeDisplay; + if (!GLX_dpy->dpy) { + GLX_dpy->dpy = XOpenDisplay(NULL); + if (!GLX_dpy->dpy) { + _eglLog(_EGL_WARNING, "GLX: XOpenDisplay failed"); + free(GLX_dpy); + return EGL_FALSE; + } + } + + if (!glXQueryVersion(GLX_dpy->dpy, &GLX_dpy->glx_maj, &GLX_dpy->glx_min)) { + _eglLog(_EGL_WARNING, "GLX: glXQueryVersion failed"); + if (!disp->NativeDisplay) + XCloseDisplay(GLX_dpy->dpy); + free(GLX_dpy); + return EGL_FALSE; + } + + check_extensions(GLX_dpy, DefaultScreen(GLX_dpy->dpy)); + check_quirks(GLX_dpy, DefaultScreen(GLX_dpy->dpy)); + + create_configs(disp, GLX_dpy, DefaultScreen(GLX_dpy->dpy)); + if (!disp->NumConfigs) { + _eglLog(_EGL_WARNING, "GLX: failed to create any config"); + if (!disp->NativeDisplay) + XCloseDisplay(GLX_dpy->dpy); + free(GLX_dpy); + return EGL_FALSE; + } + + disp->DriverData = (void *) GLX_dpy; + disp->ClientAPIsMask = EGL_OPENGL_BIT; + + /* we're supporting EGL 1.4 */ + *major = 1; + *minor = 4; + + return EGL_TRUE; +} + +/** + * Called via eglTerminate(), drv->API.Terminate(). + */ +static EGLBoolean +GLX_eglTerminate(_EGLDriver *drv, _EGLDisplay *disp) +{ + struct GLX_egl_display *GLX_dpy = GLX_egl_display(disp); + + _eglReleaseDisplayResources(drv, disp); + _eglCleanupDisplay(disp); + + if (GLX_dpy->visuals) + XFree(GLX_dpy->visuals); + if (GLX_dpy->fbconfigs) + XFree(GLX_dpy->fbconfigs); + + if (!disp->NativeDisplay) + XCloseDisplay(GLX_dpy->dpy); + free(GLX_dpy); + + disp->DriverData = NULL; + + return EGL_TRUE; +} + + +/** + * Called via eglCreateContext(), drv->API.CreateContext(). + */ +static _EGLContext * +GLX_eglCreateContext(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf, + _EGLContext *share_list, const EGLint *attrib_list) +{ + struct GLX_egl_context *GLX_ctx = CALLOC_STRUCT(GLX_egl_context); + struct GLX_egl_display *GLX_dpy = GLX_egl_display(disp); + struct GLX_egl_context *GLX_ctx_shared = GLX_egl_context(share_list); + + if (!GLX_ctx) { + _eglError(EGL_BAD_ALLOC, "eglCreateContext"); + return NULL; + } + + if (!_eglInitContext(&GLX_ctx->Base, disp, conf, attrib_list)) { + free(GLX_ctx); + return NULL; + } + + if (GLX_dpy->have_fbconfig) + GLX_ctx->context = + glXCreateNewContext(GLX_dpy->dpy, + GLX_dpy->fbconfigs[GLX_egl_config_index(conf)], + GLX_RGBA_TYPE, + GLX_ctx_shared ? GLX_ctx_shared->context : NULL, + GL_TRUE); + else + GLX_ctx->context = + glXCreateContext(GLX_dpy->dpy, + &GLX_dpy->visuals[GLX_egl_config_index(conf)], + GLX_ctx_shared ? GLX_ctx_shared->context : NULL, + GL_TRUE); + if (!GLX_ctx->context) { + free(GLX_ctx); + return NULL; + } + + return &GLX_ctx->Base; +} + + +/** + * Destroy a surface. The display is allowed to be uninitialized. + */ +static void +destroy_surface(_EGLDisplay *disp, _EGLSurface *surf) +{ + struct GLX_egl_surface *GLX_surf = GLX_egl_surface(surf); + + if (GLX_surf->destroy) + GLX_surf->destroy(disp->NativeDisplay, GLX_surf->glx_drawable); + + free(GLX_surf); +} + + +/** + * Called via eglMakeCurrent(), drv->API.MakeCurrent(). + */ +static EGLBoolean +GLX_eglMakeCurrent(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf, + _EGLSurface *rsurf, _EGLContext *ctx) +{ + struct GLX_egl_display *GLX_dpy = GLX_egl_display(disp); + struct GLX_egl_surface *GLX_dsurf = GLX_egl_surface(dsurf); + struct GLX_egl_surface *GLX_rsurf = GLX_egl_surface(rsurf); + struct GLX_egl_context *GLX_ctx = GLX_egl_context(ctx); + GLXDrawable ddraw, rdraw; + GLXContext cctx; + EGLBoolean ret = EGL_FALSE; + + /* bind the new context and return the "orphaned" one */ + if (!_eglBindContext(&ctx, &dsurf, &rsurf)) + return EGL_FALSE; + + ddraw = (GLX_dsurf) ? GLX_dsurf->glx_drawable : None; + rdraw = (GLX_rsurf) ? GLX_rsurf->glx_drawable : None; + cctx = (GLX_ctx) ? GLX_ctx->context : NULL; + + if (GLX_dpy->have_make_current_read) + ret = glXMakeContextCurrent(GLX_dpy->dpy, ddraw, rdraw, cctx); + else if (ddraw == rdraw) + ret = glXMakeCurrent(GLX_dpy->dpy, ddraw, cctx); + + if (ret) { + if (dsurf && !_eglIsSurfaceLinked(dsurf)) + destroy_surface(disp, dsurf); + if (rsurf && rsurf != dsurf && !_eglIsSurfaceLinked(rsurf)) + destroy_surface(disp, rsurf); + } + else { + _eglBindContext(&ctx, &dsurf, &rsurf); + } + + return ret; +} + +/** Get size of given window */ +static Status +get_drawable_size(Display *dpy, Drawable d, uint *width, uint *height) +{ + Window root; + Status stat; + int xpos, ypos; + unsigned int w, h, bw, depth; + stat = XGetGeometry(dpy, d, &root, &xpos, &ypos, &w, &h, &bw, &depth); + *width = w; + *height = h; + return stat; +} + +/** + * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface(). + */ +static _EGLSurface * +GLX_eglCreateWindowSurface(_EGLDriver *drv, _EGLDisplay *disp, + _EGLConfig *conf, EGLNativeWindowType window, + const EGLint *attrib_list) +{ + struct GLX_egl_display *GLX_dpy = GLX_egl_display(disp); + struct GLX_egl_surface *GLX_surf; + uint width, height; + + GLX_surf = CALLOC_STRUCT(GLX_egl_surface); + if (!GLX_surf) { + _eglError(EGL_BAD_ALLOC, "eglCreateWindowSurface"); + return NULL; + } + + if (!_eglInitSurface(&GLX_surf->Base, disp, EGL_WINDOW_BIT, + conf, attrib_list)) { + free(GLX_surf); + return NULL; + } + + GLX_surf->drawable = window; + + if (GLX_dpy->have_1_3 && !GLX_dpy->glx_window_quirk) + GLX_surf->glx_drawable = + glXCreateWindow(GLX_dpy->dpy, + GLX_dpy->fbconfigs[GLX_egl_config_index(conf)], + GLX_surf->drawable, NULL); + else + GLX_surf->glx_drawable = GLX_surf->drawable; + + if (!GLX_surf->glx_drawable) { + free(GLX_surf); + return NULL; + } + + if (GLX_dpy->have_1_3 && !GLX_dpy->glx_window_quirk) + GLX_surf->destroy = glXDestroyWindow; + + get_drawable_size(GLX_dpy->dpy, window, &width, &height); + GLX_surf->Base.Width = width; + GLX_surf->Base.Height = height; + + return &GLX_surf->Base; +} + +static _EGLSurface * +GLX_eglCreatePixmapSurface(_EGLDriver *drv, _EGLDisplay *disp, + _EGLConfig *conf, EGLNativePixmapType pixmap, + const EGLint *attrib_list) +{ + struct GLX_egl_display *GLX_dpy = GLX_egl_display(disp); + struct GLX_egl_surface *GLX_surf; + uint width, height; + + GLX_surf = CALLOC_STRUCT(GLX_egl_surface); + if (!GLX_surf) { + _eglError(EGL_BAD_ALLOC, "eglCreatePixmapSurface"); + return NULL; + } + + if (!_eglInitSurface(&GLX_surf->Base, disp, EGL_PIXMAP_BIT, + conf, attrib_list)) { + free(GLX_surf); + return NULL; + } + + GLX_surf->drawable = pixmap; + + if (GLX_dpy->have_1_3) { + GLX_surf->glx_drawable = + glXCreatePixmap(GLX_dpy->dpy, + GLX_dpy->fbconfigs[GLX_egl_config_index(conf)], + GLX_surf->drawable, NULL); + } + else if (GLX_dpy->have_fbconfig) { + GLXFBConfig fbconfig = GLX_dpy->fbconfigs[GLX_egl_config_index(conf)]; + XVisualInfo *vinfo = glXGetVisualFromFBConfig(GLX_dpy->dpy, fbconfig); + if (vinfo) { + GLX_surf->glx_drawable = + glXCreateGLXPixmap(GLX_dpy->dpy, vinfo, GLX_surf->drawable); + XFree(vinfo); + } + } + else { + GLX_surf->glx_drawable = + glXCreateGLXPixmap(GLX_dpy->dpy, + &GLX_dpy->visuals[GLX_egl_config_index(conf)], + GLX_surf->drawable); + } + + if (!GLX_surf->glx_drawable) { + free(GLX_surf); + return NULL; + } + + GLX_surf->destroy = (GLX_dpy->have_1_3) ? + glXDestroyPixmap : glXDestroyGLXPixmap; + + get_drawable_size(GLX_dpy->dpy, pixmap, &width, &height); + GLX_surf->Base.Width = width; + GLX_surf->Base.Height = height; + + return &GLX_surf->Base; +} + +static _EGLSurface * +GLX_eglCreatePbufferSurface(_EGLDriver *drv, _EGLDisplay *disp, + _EGLConfig *conf, const EGLint *attrib_list) +{ + struct GLX_egl_display *GLX_dpy = GLX_egl_display(disp); + struct GLX_egl_surface *GLX_surf; + int attribs[5]; + int i; + + GLX_surf = CALLOC_STRUCT(GLX_egl_surface); + if (!GLX_surf) { + _eglError(EGL_BAD_ALLOC, "eglCreatePbufferSurface"); + return NULL; + } + + if (!_eglInitSurface(&GLX_surf->Base, disp, EGL_PBUFFER_BIT, + conf, attrib_list)) { + free(GLX_surf); + return NULL; + } + + i = 0; + attribs[i] = None; + + GLX_surf->drawable = None; + + if (GLX_dpy->have_1_3) { + /* put geometry in attribs */ + if (GLX_surf->Base.Width) { + attribs[i++] = GLX_PBUFFER_WIDTH; + attribs[i++] = GLX_surf->Base.Width; + } + if (GLX_surf->Base.Height) { + attribs[i++] = GLX_PBUFFER_HEIGHT; + attribs[i++] = GLX_surf->Base.Height; + } + attribs[i] = None; + + GLX_surf->glx_drawable = + glXCreatePbuffer(GLX_dpy->dpy, + GLX_dpy->fbconfigs[GLX_egl_config_index(conf)], + attribs); + } + else if (GLX_dpy->have_pbuffer) { + GLX_surf->glx_drawable = GLX_dpy->glXCreateGLXPbufferSGIX( + GLX_dpy->dpy, + GLX_dpy->fbconfigs[GLX_egl_config_index(conf)], + GLX_surf->Base.Width, + GLX_surf->Base.Height, + attribs); + } + + if (!GLX_surf->glx_drawable) { + free(GLX_surf); + return NULL; + } + + GLX_surf->destroy = (GLX_dpy->have_1_3) ? + glXDestroyPbuffer : GLX_dpy->glXDestroyGLXPbufferSGIX; + + return &GLX_surf->Base; +} + + +static EGLBoolean +GLX_eglDestroySurface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf) +{ + if (!_eglIsSurfaceBound(surf)) + destroy_surface(disp, surf); + + return EGL_TRUE; +} + + +static EGLBoolean +GLX_eglSwapBuffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw) +{ + struct GLX_egl_display *GLX_dpy = GLX_egl_display(disp); + struct GLX_egl_surface *GLX_surf = GLX_egl_surface(draw); + + glXSwapBuffers(GLX_dpy->dpy, GLX_surf->glx_drawable); + + return EGL_TRUE; +} + +/* + * Called from eglGetProcAddress() via drv->API.GetProcAddress(). + */ +static _EGLProc +GLX_eglGetProcAddress(_EGLDriver *drv, const char *procname) +{ + return (_EGLProc) glXGetProcAddress((const GLubyte *) procname); +} + +static EGLBoolean +GLX_eglWaitClient(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx) +{ + glXWaitGL(); + return EGL_TRUE; +} + +static EGLBoolean +GLX_eglWaitNative(_EGLDriver *drv, _EGLDisplay *dpy, EGLint engine) +{ + if (engine != EGL_CORE_NATIVE_ENGINE) + return _eglError(EGL_BAD_PARAMETER, "eglWaitNative"); + glXWaitX(); + return EGL_TRUE; +} + +static void +GLX_Unload(_EGLDriver *drv) +{ + struct GLX_egl_driver *GLX_drv = GLX_egl_driver(drv); + free(GLX_drv); +} + + +/** + * This is the main entrypoint into the driver, called by libEGL. + * Create a new _EGLDriver object and init its dispatch table. + */ +_EGLDriver * +_eglMain(const char *args) +{ + struct GLX_egl_driver *GLX_drv = CALLOC_STRUCT(GLX_egl_driver); + + if (!GLX_drv) + return NULL; + + _eglInitDriverFallbacks(&GLX_drv->Base); + GLX_drv->Base.API.Initialize = GLX_eglInitialize; + GLX_drv->Base.API.Terminate = GLX_eglTerminate; + GLX_drv->Base.API.CreateContext = GLX_eglCreateContext; + GLX_drv->Base.API.MakeCurrent = GLX_eglMakeCurrent; + GLX_drv->Base.API.CreateWindowSurface = GLX_eglCreateWindowSurface; + GLX_drv->Base.API.CreatePixmapSurface = GLX_eglCreatePixmapSurface; + GLX_drv->Base.API.CreatePbufferSurface = GLX_eglCreatePbufferSurface; + GLX_drv->Base.API.DestroySurface = GLX_eglDestroySurface; + GLX_drv->Base.API.SwapBuffers = GLX_eglSwapBuffers; + GLX_drv->Base.API.GetProcAddress = GLX_eglGetProcAddress; + GLX_drv->Base.API.WaitClient = GLX_eglWaitClient; + GLX_drv->Base.API.WaitNative = GLX_eglWaitNative; + + GLX_drv->Base.Name = "GLX"; + GLX_drv->Base.Unload = GLX_Unload; + + return &GLX_drv->Base; +} diff --git a/src/egl/main/Makefile b/src/egl/main/Makefile new file mode 100644 index 0000000000..d9e9e4fcd6 --- /dev/null +++ b/src/egl/main/Makefile @@ -0,0 +1,121 @@ +# src/egl/main/Makefile + +TOP = ../../.. +include $(TOP)/configs/current + + +EGL_MAJOR = 1 +EGL_MINOR = 0 + +INCLUDE_DIRS = -I$(TOP)/include + +HEADERS = \ + eglcompiler.h \ + eglconfig.h \ + eglconfigutil.h \ + eglcontext.h \ + eglcurrent.h \ + egldefines.h \ + egldisplay.h \ + egldriver.h \ + eglglobals.h \ + eglimage.h \ + egllog.h \ + eglmisc.h \ + eglmode.h \ + eglmutex.h \ + eglscreen.h \ + eglstring.h \ + eglsurface.h + +SOURCES = \ + eglapi.c \ + eglconfig.c \ + eglconfigutil.c \ + eglcontext.c \ + eglcurrent.c \ + egldisplay.c \ + egldriver.c \ + eglglobals.c \ + eglimage.c \ + egllog.c \ + eglmisc.c \ + eglmode.c \ + eglscreen.c \ + eglstring.c \ + eglsurface.c + +OBJECTS = $(SOURCES:.c=.o) + + +# use dl*() to load drivers +LOCAL_CFLAGS = -D_EGL_OS_UNIX=1 + +EGL_DEFAULT_PLATFORM = $(firstword $(EGL_PLATFORMS)) + +LOCAL_CFLAGS += \ + -D_EGL_DEFAULT_PLATFORM=\"$(EGL_DEFAULT_PLATFORM)\" \ + -D_EGL_DRIVER_SEARCH_DIR=\"$(EGL_DRIVER_INSTALL_DIR)\" + +.c.o: + $(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $(LOCAL_CFLAGS) $< -o $@ + + + +default: depend library + + +# EGL Library +library: $(TOP)/$(LIB_DIR)/$(EGL_LIB_NAME) + +$(TOP)/$(LIB_DIR)/$(EGL_LIB_NAME): $(OBJECTS) + $(MKLIB) -o $(EGL_LIB) -linker '$(CC)' -ldflags '$(LDFLAGS)' \ + -major $(EGL_MAJOR) -minor $(EGL_MINOR) \ + -install $(TOP)/$(LIB_DIR) $(MKLIB_OPTIONS) \ + $(EGL_LIB_DEPS) $(OBJECTS) + +install-headers: + $(INSTALL) -d $(DESTDIR)$(INSTALL_INC_DIR)/KHR + $(INSTALL) -m 644 $(TOP)/include/KHR/*.h \ + $(DESTDIR)$(INSTALL_INC_DIR)/KHR + $(INSTALL) -d $(DESTDIR)$(INSTALL_INC_DIR)/EGL + $(INSTALL) -m 644 $(TOP)/include/EGL/*.h \ + $(DESTDIR)$(INSTALL_INC_DIR)/EGL + +PKG_CONFIG_DIR = $(INSTALL_LIB_DIR)/pkgconfig + +gl_pcedit = sed \ + -e 's,@INSTALL_DIR@,$(INSTALL_DIR),' \ + -e 's,@INSTALL_LIB_DIR@,$(INSTALL_LIB_DIR),' \ + -e 's,@INSTALL_INC_DIR@,$(INSTALL_INC_DIR),' \ + -e 's,@VERSION@,$(MESA_MAJOR).$(MESA_MINOR).$(MESA_TINY),' \ + -e 's,@EGL_PC_REQ_PRIV@,$(EGL_PC_REQ_PRIV),' \ + -e 's,@EGL_PC_LIB_PRIV@,$(EGL_PC_LIB_PRIV),' \ + -e 's,@EGL_PC_CFLAGS@,$(EGL_PC_CFLAGS),' \ + -e 's,@EGL_LIB@,$(EGL_LIB),' + +egl.pc: egl.pc.in + $(gl_pcedit) $< > $@ + +install: default install-headers egl.pc + $(INSTALL) -d $(DESTDIR)$(INSTALL_LIB_DIR) + $(MINSTALL) $(TOP)/$(LIB_DIR)/$(EGL_LIB_GLOB) \ + $(DESTDIR)$(INSTALL_LIB_DIR) + $(INSTALL) -d $(DESTDIR)$(PKG_CONFIG_DIR) + $(INSTALL) -m 644 egl.pc $(DESTDIR)$(PKG_CONFIG_DIR) + +clean: + -rm -f *.o + -rm -f depend depend.bak + + +depend: $(SOURCES) $(HEADERS) + @ echo "running $(MKDEP)" + @ rm -f depend + @ touch depend + $(MKDEP) $(MKDEP_OPTIONS) $(DEFINES) $(INCLUDE_DIRS) \ + $(SOURCES) $(HEADERS) > /dev/null 2>/dev/null + + +-include depend +# DO NOT DELETE diff --git a/src/egl/main/README.txt b/src/egl/main/README.txt new file mode 100644 index 0000000000..b3d253dd13 --- /dev/null +++ b/src/egl/main/README.txt @@ -0,0 +1,71 @@ + + +Notes about the EGL library: + + +The EGL code here basically consists of two things: + +1. An EGL API dispatcher. This directly routes all the eglFooBar() API + calls into driver-specific functions. + +2. Fallbacks for EGL API functions. A driver _could_ implement all the + EGL API calls from scratch. But in many cases, the fallbacks provided + in libEGL (such as eglChooseConfig()) will do the job. + + + +Bootstrapping: + +When the apps calls eglOpenDisplay() a device driver is selected and loaded +(look for dlsym() or LoadLibrary() in egldriver.c). + +The driver's _eglMain() function is then called. This driver function +allocates, initializes and returns a new _EGLDriver object (usually a +subclass of that type). + +As part of initialization, the dispatch table in _EGLDriver->API must be +populated with all the EGL entrypoints. Typically, _eglInitDriverFallbacks() +can be used to plug in default/fallback functions. Some functions like +driver->API.Initialize and driver->API.Terminate _must_ be implemented +with driver-specific code (no default/fallback function is possible). + + +A bit later, the app will call eglInitialize(). This will get routed +to the driver->API.Initialize() function. Any additional driver +initialization that wasn't done in _eglMain() should be done at this +point. Typically, this will involve setting up visual configs, etc. + + + +Special Functions: + +Certain EGL functions _must_ be implemented by the driver. This includes: + +eglCreateContext +eglCreateWindowSurface +eglCreatePixmapSurface +eglCreatePBufferSurface +eglMakeCurrent +eglSwapBuffers + +Most of the EGLConfig-related functions can be implemented with the +defaults/fallbacks. Same thing for the eglGet/Query functions. + + + + +Teardown: + +When eglTerminate() is called, the driver->API.Terminate() function is +called. The driver should clean up after itself. eglTerminate() will +then close/unload the driver (shared library). + + + + +Subclassing: + +The internal libEGL data structures such as _EGLDisplay, _EGLContext, +_EGLSurface, etc should be considered base classes from which drivers +will derive subclasses. + diff --git a/src/egl/main/SConscript b/src/egl/main/SConscript new file mode 100644 index 0000000000..a331c9711e --- /dev/null +++ b/src/egl/main/SConscript @@ -0,0 +1,49 @@ +####################################################################### +# SConscript for EGL + + +Import('*') + +if env['platform'] != 'winddk': + + env = env.Clone() + + env.Append(CPPDEFINES = [ + '_EGL_DEFAULT_DISPLAY=\\"gdi\\"', + '_EGL_DRIVER_SEARCH_DIR=\\"\\"', + '_EGL_OS_WINDOWS', + 'KHRONOS_DLL_EXPORTS', + ]) + + env.Append(CPPPATH = [ + '#/include', + ]) + + egl_sources = [ + 'eglapi.c', + 'eglconfig.c', + 'eglconfigutil.c', + 'eglcontext.c', + 'eglcurrent.c', + 'egldisplay.c', + 'egldriver.c', + 'eglglobals.c', + 'eglimage.c', + 'egllog.c', + 'eglmisc.c', + 'eglmode.c', + 'eglscreen.c', + 'eglstring.c', + 'eglsurface.c', + ] + + egl = env.SharedLibrary( + target = 'libEGL', + source = egl_sources, + ) + + env.InstallSharedLibrary(egl, version=(1, 4, 0)) + + egl = [env.FindIxes(egl, 'LIBPREFIX', 'LIBSUFFIX')] + + Export('egl') diff --git a/src/egl/main/egl.pc.in b/src/egl/main/egl.pc.in new file mode 100644 index 0000000000..2855a4980a --- /dev/null +++ b/src/egl/main/egl.pc.in @@ -0,0 +1,12 @@ +prefix=@INSTALL_DIR@ +exec_prefix=${prefix} +libdir=@INSTALL_LIB_DIR@ +includedir=@INSTALL_INC_DIR@ + +Name: egl +Description: Mesa EGL library +Requires.private: @EGL_PC_REQ_PRIV@ +Version: @VERSION@ +Libs: -L${libdir} -l@EGL_LIB@ +Libs.private: @EGL_PC_LIB_PRIV@ +Cflags: -I${includedir} @EGL_PC_CFLAGS@ diff --git a/src/egl/main/eglapi.c b/src/egl/main/eglapi.c new file mode 100644 index 0000000000..9912043e06 --- /dev/null +++ b/src/egl/main/eglapi.c @@ -0,0 +1,1282 @@ +/** + * Public EGL API entrypoints + * + * Generally, we use the EGLDisplay parameter as a key to lookup the + * appropriate device driver handle, then jump though the driver's + * dispatch table to handle the function. + * + * That allows us the option of supporting multiple, simultaneous, + * heterogeneous hardware devices in the future. + * + * The EGLDisplay, EGLConfig, EGLContext and EGLSurface types are + * opaque handles. Internal objects are linked to a display to + * create the handles. + * + * For each public API entry point, the opaque handles are looked up + * before being dispatched to the drivers. When it fails to look up + * a handle, one of + * + * EGL_BAD_DISPLAY + * EGL_BAD_CONFIG + * EGL_BAD_CONTEXT + * EGL_BAD_SURFACE + * EGL_BAD_SCREEN_MESA + * EGL_BAD_MODE_MESA + * + * is generated and the driver function is not called. An + * uninitialized EGLDisplay has no driver associated with it. When + * such display is detected, + * + * EGL_NOT_INITIALIZED + * + * is generated. + * + * Some of the entry points use current display, context, or surface + * implicitly. For such entry points, the implicit objects are also + * checked before calling the driver function. Other than the + * errors listed above, + * + * EGL_BAD_CURRENT_SURFACE + * + * may also be generated. + * + * Notes on naming conventions: + * + * eglFooBar - public EGL function + * EGL_FOO_BAR - public EGL token + * EGLDatatype - public EGL datatype + * + * _eglFooBar - private EGL function + * _EGLDatatype - private EGL datatype, typedef'd struct + * _egl_struct - private EGL struct, non-typedef'd + * + */ + + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "eglstring.h" +#include "eglcontext.h" +#include "egldisplay.h" +#include "egltypedefs.h" +#include "eglglobals.h" +#include "eglcurrent.h" +#include "egldriver.h" +#include "eglsurface.h" +#include "eglconfig.h" +#include "eglscreen.h" +#include "eglmode.h" +#include "eglimage.h" + + +/** + * Macros to help return an API entrypoint. + * + * These macros will unlock the display and record the error code. + */ +#define RETURN_EGL_ERROR(disp, err, ret) \ + do { \ + if (disp) \ + _eglUnlockDisplay(disp); \ + /* EGL error codes are non-zero */ \ + if (err) \ + _eglError(err, __FUNCTION__); \ + return ret; \ + } while (0) + +#define RETURN_EGL_SUCCESS(disp, ret) \ + RETURN_EGL_ERROR(disp, EGL_SUCCESS, ret) + +/* record EGL_SUCCESS only when ret evaluates to true */ +#define RETURN_EGL_EVAL(disp, ret) \ + RETURN_EGL_ERROR(disp, (ret) ? EGL_SUCCESS : 0, ret) + + +/* + * A bunch of macros and checks to simplify error checking. + */ + +#define _EGL_CHECK_DISPLAY(disp, ret, drv) \ + do { \ + drv = _eglCheckDisplay(disp, __FUNCTION__); \ + if (!drv) \ + RETURN_EGL_ERROR(disp, 0, ret); \ + } while (0) + +#define _EGL_CHECK_OBJECT(disp, type, obj, ret, drv) \ + do { \ + drv = _eglCheck ## type(disp, obj, __FUNCTION__); \ + if (!drv) \ + RETURN_EGL_ERROR(disp, 0, ret); \ + } while (0) + +#define _EGL_CHECK_SURFACE(disp, surf, ret, drv) \ + _EGL_CHECK_OBJECT(disp, Surface, surf, ret, drv) + +#define _EGL_CHECK_CONTEXT(disp, context, ret, drv) \ + _EGL_CHECK_OBJECT(disp, Context, context, ret, drv) + +#define _EGL_CHECK_CONFIG(disp, conf, ret, drv) \ + _EGL_CHECK_OBJECT(disp, Config, conf, ret, drv) + +#define _EGL_CHECK_SCREEN(disp, scrn, ret, drv) \ + _EGL_CHECK_OBJECT(disp, Screen, scrn, ret, drv) + +#define _EGL_CHECK_MODE(disp, m, ret, drv) \ + _EGL_CHECK_OBJECT(disp, Mode, m, ret, drv) + + + +static INLINE _EGLDriver * +_eglCheckDisplay(_EGLDisplay *disp, const char *msg) +{ + if (!disp) { + _eglError(EGL_BAD_DISPLAY, msg); + return NULL; + } + if (!disp->Initialized) { + _eglError(EGL_NOT_INITIALIZED, msg); + return NULL; + } + return disp->Driver; +} + + +static INLINE _EGLDriver * +_eglCheckSurface(_EGLDisplay *disp, _EGLSurface *surf, const char *msg) +{ + _EGLDriver *drv = _eglCheckDisplay(disp, msg); + if (!drv) + return NULL; + if (!surf) { + _eglError(EGL_BAD_SURFACE, msg); + return NULL; + } + return drv; +} + + +static INLINE _EGLDriver * +_eglCheckContext(_EGLDisplay *disp, _EGLContext *context, const char *msg) +{ + _EGLDriver *drv = _eglCheckDisplay(disp, msg); + if (!drv) + return NULL; + if (!context) { + _eglError(EGL_BAD_CONTEXT, msg); + return NULL; + } + return drv; +} + + +static INLINE _EGLDriver * +_eglCheckConfig(_EGLDisplay *disp, _EGLConfig *conf, const char *msg) +{ + _EGLDriver *drv = _eglCheckDisplay(disp, msg); + if (!drv) + return NULL; + if (!conf) { + _eglError(EGL_BAD_CONFIG, msg); + return NULL; + } + return drv; +} + + +#ifdef EGL_MESA_screen_surface + + +static INLINE _EGLDriver * +_eglCheckScreen(_EGLDisplay *disp, _EGLScreen *scrn, const char *msg) +{ + _EGLDriver *drv = _eglCheckDisplay(disp, msg); + if (!drv) + return NULL; + if (!scrn) { + _eglError(EGL_BAD_SCREEN_MESA, msg); + return NULL; + } + return drv; +} + + +static INLINE _EGLDriver * +_eglCheckMode(_EGLDisplay *disp, _EGLMode *m, const char *msg) +{ + _EGLDriver *drv = _eglCheckDisplay(disp, msg); + if (!drv) + return NULL; + if (!m) { + _eglError(EGL_BAD_MODE_MESA, msg); + return NULL; + } + return drv; +} + + +#endif /* EGL_MESA_screen_surface */ + + +/** + * Lookup and lock a display. + */ +static INLINE _EGLDisplay * +_eglLockDisplay(EGLDisplay display) +{ + _EGLDisplay *dpy = _eglLookupDisplay(display); + if (dpy) + _eglLockMutex(&dpy->Mutex); + return dpy; +} + + +/** + * Unlock a display. + */ +static INLINE void +_eglUnlockDisplay(_EGLDisplay *dpy) +{ + _eglUnlockMutex(&dpy->Mutex); +} + + +/** + * This is typically the first EGL function that an application calls. + * It associates a private _EGLDisplay object to the native display. + */ +EGLDisplay EGLAPIENTRY +eglGetDisplay(EGLNativeDisplayType nativeDisplay) +{ + _EGLDisplay *dpy = _eglFindDisplay(nativeDisplay); + return _eglGetDisplayHandle(dpy); +} + + +/** + * This is typically the second EGL function that an application calls. + * Here we load/initialize the actual hardware driver. + */ +EGLBoolean EGLAPIENTRY +eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + EGLint major_int = 0, minor_int = 0; + + if (!disp) + RETURN_EGL_ERROR(NULL, EGL_BAD_DISPLAY, EGL_FALSE); + + if (!disp->Initialized) { + _EGLDriver *drv = disp->Driver; + + if (!drv) { + _eglPreloadDrivers(); + drv = _eglMatchDriver(disp); + /* Initialize the particular display now */ + if (drv && !drv->API.Initialize(drv, disp, &major_int, &minor_int)) + RETURN_EGL_ERROR(disp, EGL_NOT_INITIALIZED, EGL_FALSE); + } + if (!drv) + /* Load and initialize the first default driver that works */ + drv = _eglLoadDefaultDriver(disp, &major_int, &minor_int); + if (!drv) + RETURN_EGL_ERROR(disp, EGL_NOT_INITIALIZED, EGL_FALSE); + + disp->APImajor = major_int; + disp->APIminor = minor_int; + _eglsnprintf(disp->Version, sizeof(disp->Version), + "%d.%d (%s)", major_int, minor_int, drv->Name); + + /* limit to APIs supported by core */ + disp->ClientAPIsMask &= _EGL_API_ALL_BITS; + + disp->Driver = drv; + disp->Initialized = EGL_TRUE; + } else { + major_int = disp->APImajor; + minor_int = disp->APIminor; + } + + /* Update applications version of major and minor if not NULL */ + if ((major != NULL) && (minor != NULL)) { + *major = major_int; + *minor = minor_int; + } + + RETURN_EGL_SUCCESS(disp, EGL_TRUE); +} + + +EGLBoolean EGLAPIENTRY +eglTerminate(EGLDisplay dpy) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + + if (!disp) + RETURN_EGL_ERROR(NULL, EGL_BAD_DISPLAY, EGL_FALSE); + + if (disp->Initialized) { + _EGLDriver *drv = disp->Driver; + + drv->API.Terminate(drv, disp); + /* do not reset disp->Driver */ + disp->Initialized = EGL_FALSE; + } + + RETURN_EGL_SUCCESS(disp, EGL_TRUE); +} + + +const char * EGLAPIENTRY +eglQueryString(EGLDisplay dpy, EGLint name) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLDriver *drv; + const char *ret; + + _EGL_CHECK_DISPLAY(disp, NULL, drv); + ret = drv->API.QueryString(drv, disp, name); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean EGLAPIENTRY +eglGetConfigs(EGLDisplay dpy, EGLConfig *configs, + EGLint config_size, EGLint *num_config) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv); + ret = drv->API.GetConfigs(drv, disp, configs, config_size, num_config); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean EGLAPIENTRY +eglChooseConfig(EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs, + EGLint config_size, EGLint *num_config) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv); + ret = drv->API.ChooseConfig(drv, disp, attrib_list, configs, + config_size, num_config); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean EGLAPIENTRY +eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, + EGLint attribute, EGLint *value) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLConfig *conf = _eglLookupConfig(config, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_CONFIG(disp, conf, EGL_FALSE, drv); + ret = drv->API.GetConfigAttrib(drv, disp, conf, attribute, value); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLContext EGLAPIENTRY +eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_list, + const EGLint *attrib_list) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLConfig *conf = _eglLookupConfig(config, disp); + _EGLContext *share = _eglLookupContext(share_list, disp); + _EGLDriver *drv; + _EGLContext *context; + EGLContext ret; + + _EGL_CHECK_CONFIG(disp, conf, EGL_NO_CONTEXT, drv); + if (!share && share_list != EGL_NO_CONTEXT) + RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_NO_CONTEXT); + + context = drv->API.CreateContext(drv, disp, conf, share, attrib_list); + ret = (context) ? _eglLinkContext(context, disp) : EGL_NO_CONTEXT; + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean EGLAPIENTRY +eglDestroyContext(EGLDisplay dpy, EGLContext ctx) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLContext *context = _eglLookupContext(ctx, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_CONTEXT(disp, context, EGL_FALSE, drv); + _eglUnlinkContext(context); + ret = drv->API.DestroyContext(drv, disp, context); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean EGLAPIENTRY +eglMakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, + EGLContext ctx) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLContext *context = _eglLookupContext(ctx, disp); + _EGLSurface *draw_surf = _eglLookupSurface(draw, disp); + _EGLSurface *read_surf = _eglLookupSurface(read, disp); + _EGLDriver *drv; + EGLBoolean ret; + + if (!disp) + RETURN_EGL_ERROR(disp, EGL_BAD_DISPLAY, EGL_FALSE); + drv = disp->Driver; + + /* display is allowed to be uninitialized under certain condition */ + if (!disp->Initialized) { + if (draw != EGL_NO_SURFACE || read != EGL_NO_SURFACE || + ctx != EGL_NO_CONTEXT) + RETURN_EGL_ERROR(disp, EGL_BAD_DISPLAY, EGL_FALSE); + } + if (!drv) + RETURN_EGL_SUCCESS(disp, EGL_TRUE); + + if (!context && ctx != EGL_NO_CONTEXT) + RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_FALSE); + if ((!draw_surf && draw != EGL_NO_SURFACE) || + (!read_surf && read != EGL_NO_SURFACE)) + RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE); + + ret = drv->API.MakeCurrent(drv, disp, draw_surf, read_surf, context); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean EGLAPIENTRY +eglQueryContext(EGLDisplay dpy, EGLContext ctx, + EGLint attribute, EGLint *value) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLContext *context = _eglLookupContext(ctx, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_CONTEXT(disp, context, EGL_FALSE, drv); + ret = drv->API.QueryContext(drv, disp, context, attribute, value); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLSurface EGLAPIENTRY +eglCreateWindowSurface(EGLDisplay dpy, EGLConfig config, + EGLNativeWindowType window, const EGLint *attrib_list) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLConfig *conf = _eglLookupConfig(config, disp); + _EGLDriver *drv; + _EGLSurface *surf; + EGLSurface ret; + + _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv); + + surf = drv->API.CreateWindowSurface(drv, disp, conf, window, attrib_list); + ret = (surf) ? _eglLinkSurface(surf, disp) : EGL_NO_SURFACE; + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLSurface EGLAPIENTRY +eglCreatePixmapSurface(EGLDisplay dpy, EGLConfig config, + EGLNativePixmapType pixmap, const EGLint *attrib_list) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLConfig *conf = _eglLookupConfig(config, disp); + _EGLDriver *drv; + _EGLSurface *surf; + EGLSurface ret; + + _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv); + + surf = drv->API.CreatePixmapSurface(drv, disp, conf, pixmap, attrib_list); + ret = (surf) ? _eglLinkSurface(surf, disp) : EGL_NO_SURFACE; + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLSurface EGLAPIENTRY +eglCreatePbufferSurface(EGLDisplay dpy, EGLConfig config, + const EGLint *attrib_list) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLConfig *conf = _eglLookupConfig(config, disp); + _EGLDriver *drv; + _EGLSurface *surf; + EGLSurface ret; + + _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv); + + surf = drv->API.CreatePbufferSurface(drv, disp, conf, attrib_list); + ret = (surf) ? _eglLinkSurface(surf, disp) : EGL_NO_SURFACE; + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean EGLAPIENTRY +eglDestroySurface(EGLDisplay dpy, EGLSurface surface) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLSurface *surf = _eglLookupSurface(surface, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv); + _eglUnlinkSurface(surf); + ret = drv->API.DestroySurface(drv, disp, surf); + + RETURN_EGL_EVAL(disp, ret); +} + +EGLBoolean EGLAPIENTRY +eglQuerySurface(EGLDisplay dpy, EGLSurface surface, + EGLint attribute, EGLint *value) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLSurface *surf = _eglLookupSurface(surface, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv); + ret = drv->API.QuerySurface(drv, disp, surf, attribute, value); + + RETURN_EGL_EVAL(disp, ret); +} + +EGLBoolean EGLAPIENTRY +eglSurfaceAttrib(EGLDisplay dpy, EGLSurface surface, + EGLint attribute, EGLint value) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLSurface *surf = _eglLookupSurface(surface, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv); + ret = drv->API.SurfaceAttrib(drv, disp, surf, attribute, value); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean EGLAPIENTRY +eglBindTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLSurface *surf = _eglLookupSurface(surface, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv); + ret = drv->API.BindTexImage(drv, disp, surf, buffer); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean EGLAPIENTRY +eglReleaseTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLSurface *surf = _eglLookupSurface(surface, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv); + ret = drv->API.ReleaseTexImage(drv, disp, surf, buffer); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean EGLAPIENTRY +eglSwapInterval(EGLDisplay dpy, EGLint interval) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLContext *ctx = _eglGetCurrentContext(); + _EGLSurface *surf; + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv); + + if (!ctx || !_eglIsContextLinked(ctx) || ctx->Resource.Display != disp) + RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_FALSE); + + surf = ctx->DrawSurface; + if (!_eglIsSurfaceLinked(surf)) + RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE); + + ret = drv->API.SwapInterval(drv, disp, surf, interval); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean EGLAPIENTRY +eglSwapBuffers(EGLDisplay dpy, EGLSurface surface) +{ + _EGLContext *ctx = _eglGetCurrentContext(); + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLSurface *surf = _eglLookupSurface(surface, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv); + + /* surface must be bound to current context in EGL 1.4 */ + if (!ctx || !_eglIsContextLinked(ctx) || surf != ctx->DrawSurface) + RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE); + + ret = drv->API.SwapBuffers(drv, disp, surf); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean EGLAPIENTRY +eglCopyBuffers(EGLDisplay dpy, EGLSurface surface, EGLNativePixmapType target) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLSurface *surf = _eglLookupSurface(surface, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv); + ret = drv->API.CopyBuffers(drv, disp, surf, target); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean EGLAPIENTRY +eglWaitClient(void) +{ + _EGLContext *ctx = _eglGetCurrentContext(); + _EGLDisplay *disp; + _EGLDriver *drv; + EGLBoolean ret; + + if (!ctx) + RETURN_EGL_SUCCESS(NULL, EGL_TRUE); + + disp = ctx->Resource.Display; + _eglLockMutex(&disp->Mutex); + + /* let bad current context imply bad current surface */ + if (!_eglIsContextLinked(ctx) || !_eglIsSurfaceLinked(ctx->DrawSurface)) + RETURN_EGL_ERROR(disp, EGL_BAD_CURRENT_SURFACE, EGL_FALSE); + + /* a valid current context implies an initialized current display */ + assert(disp->Initialized); + drv = disp->Driver; + ret = drv->API.WaitClient(drv, disp, ctx); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean EGLAPIENTRY +eglWaitGL(void) +{ +#ifdef EGL_VERSION_1_2 + _EGLThreadInfo *t = _eglGetCurrentThread(); + EGLint api_index = t->CurrentAPIIndex; + EGLint es_index = _eglConvertApiToIndex(EGL_OPENGL_ES_API); + EGLBoolean ret; + + if (api_index != es_index && _eglIsCurrentThreadDummy()) + RETURN_EGL_ERROR(NULL, EGL_BAD_ALLOC, EGL_FALSE); + + t->CurrentAPIIndex = es_index; + ret = eglWaitClient(); + t->CurrentAPIIndex = api_index; + return ret; +#else + return eglWaitClient(); +#endif +} + + +EGLBoolean EGLAPIENTRY +eglWaitNative(EGLint engine) +{ + _EGLContext *ctx = _eglGetCurrentContext(); + _EGLDisplay *disp; + _EGLDriver *drv; + EGLBoolean ret; + + if (!ctx) + RETURN_EGL_SUCCESS(NULL, EGL_TRUE); + + disp = ctx->Resource.Display; + _eglLockMutex(&disp->Mutex); + + /* let bad current context imply bad current surface */ + if (!_eglIsContextLinked(ctx) || !_eglIsSurfaceLinked(ctx->DrawSurface)) + RETURN_EGL_ERROR(disp, EGL_BAD_CURRENT_SURFACE, EGL_FALSE); + + /* a valid current context implies an initialized current display */ + assert(disp->Initialized); + drv = disp->Driver; + ret = drv->API.WaitNative(drv, disp, engine); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLDisplay EGLAPIENTRY +eglGetCurrentDisplay(void) +{ + _EGLContext *ctx = _eglGetCurrentContext(); + EGLDisplay ret; + + ret = (ctx) ? _eglGetDisplayHandle(ctx->Resource.Display) : EGL_NO_DISPLAY; + + RETURN_EGL_SUCCESS(NULL, ret); +} + + +EGLContext EGLAPIENTRY +eglGetCurrentContext(void) +{ + _EGLContext *ctx = _eglGetCurrentContext(); + EGLContext ret; + + ret = _eglGetContextHandle(ctx); + + RETURN_EGL_SUCCESS(NULL, ret); +} + + +EGLSurface EGLAPIENTRY +eglGetCurrentSurface(EGLint readdraw) +{ + _EGLContext *ctx = _eglGetCurrentContext(); + EGLint err = EGL_SUCCESS; + _EGLSurface *surf; + EGLSurface ret; + + if (!ctx) + RETURN_EGL_SUCCESS(NULL, EGL_NO_SURFACE); + + switch (readdraw) { + case EGL_DRAW: + surf = ctx->DrawSurface; + break; + case EGL_READ: + surf = ctx->ReadSurface; + break; + default: + surf = NULL; + err = EGL_BAD_PARAMETER; + break; + } + + ret = _eglGetSurfaceHandle(surf); + + RETURN_EGL_ERROR(NULL, err, ret); +} + + +EGLint EGLAPIENTRY +eglGetError(void) +{ + _EGLThreadInfo *t = _eglGetCurrentThread(); + EGLint e = t->LastError; + if (!_eglIsCurrentThreadDummy()) + t->LastError = EGL_SUCCESS; + return e; +} + + +__eglMustCastToProperFunctionPointerType EGLAPIENTRY +eglGetProcAddress(const char *procname) +{ + static const struct { + const char *name; + _EGLProc function; + } egl_functions[] = { + /* extensions only */ +#ifdef EGL_MESA_screen_surface + { "eglChooseModeMESA", (_EGLProc) eglChooseModeMESA }, + { "eglGetModesMESA", (_EGLProc) eglGetModesMESA }, + { "eglGetModeAttribMESA", (_EGLProc) eglGetModeAttribMESA }, + { "eglCopyContextMESA", (_EGLProc) eglCopyContextMESA }, + { "eglGetScreensMESA", (_EGLProc) eglGetScreensMESA }, + { "eglCreateScreenSurfaceMESA", (_EGLProc) eglCreateScreenSurfaceMESA }, + { "eglShowScreenSurfaceMESA", (_EGLProc) eglShowScreenSurfaceMESA }, + { "eglScreenPositionMESA", (_EGLProc) eglScreenPositionMESA }, + { "eglQueryScreenMESA", (_EGLProc) eglQueryScreenMESA }, + { "eglQueryScreenSurfaceMESA", (_EGLProc) eglQueryScreenSurfaceMESA }, + { "eglQueryScreenModeMESA", (_EGLProc) eglQueryScreenModeMESA }, + { "eglQueryModeStringMESA", (_EGLProc) eglQueryModeStringMESA }, +#endif /* EGL_MESA_screen_surface */ +#ifdef EGL_KHR_image_base + { "eglCreateImageKHR", (_EGLProc) eglCreateImageKHR }, + { "eglDestroyImageKHR", (_EGLProc) eglDestroyImageKHR }, +#endif /* EGL_KHR_image_base */ +#ifdef EGL_NOK_swap_region + { "eglSwapBuffersRegionNOK", (_EGLProc) eglSwapBuffersRegionNOK }, +#endif + { NULL, NULL } + }; + EGLint i; + _EGLProc ret; + + if (!procname) + RETURN_EGL_SUCCESS(NULL, NULL); + + ret = NULL; + if (strncmp(procname, "egl", 3) == 0) { + for (i = 0; egl_functions[i].name; i++) { + if (strcmp(egl_functions[i].name, procname) == 0) { + ret = egl_functions[i].function; + break; + } + } + } + if (ret) + RETURN_EGL_SUCCESS(NULL, ret); + + _eglPreloadDrivers(); + + /* now loop over drivers to query their procs */ + for (i = 0; i < _eglGlobal.NumDrivers; i++) { + _EGLDriver *drv = _eglGlobal.Drivers[i]; + ret = drv->API.GetProcAddress(drv, procname); + if (ret) + break; + } + + RETURN_EGL_SUCCESS(NULL, ret); +} + + +#ifdef EGL_MESA_screen_surface + + +/* + * EGL_MESA_screen extension + */ + +EGLBoolean EGLAPIENTRY +eglChooseModeMESA(EGLDisplay dpy, EGLScreenMESA screen, + const EGLint *attrib_list, EGLModeMESA *modes, + EGLint modes_size, EGLint *num_modes) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLScreen *scrn = _eglLookupScreen(screen, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_SCREEN(disp, scrn, EGL_FALSE, drv); + ret = drv->API.ChooseModeMESA(drv, disp, scrn, attrib_list, + modes, modes_size, num_modes); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean EGLAPIENTRY +eglGetModesMESA(EGLDisplay dpy, EGLScreenMESA screen, EGLModeMESA *modes, + EGLint mode_size, EGLint *num_mode) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLScreen *scrn = _eglLookupScreen(screen, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_SCREEN(disp, scrn, EGL_FALSE, drv); + ret = drv->API.GetModesMESA(drv, disp, scrn, modes, mode_size, num_mode); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean EGLAPIENTRY +eglGetModeAttribMESA(EGLDisplay dpy, EGLModeMESA mode, + EGLint attribute, EGLint *value) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLMode *m = _eglLookupMode(mode, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_MODE(disp, m, EGL_FALSE, drv); + ret = drv->API.GetModeAttribMESA(drv, disp, m, attribute, value); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean EGLAPIENTRY +eglCopyContextMESA(EGLDisplay dpy, EGLContext source, EGLContext dest, + EGLint mask) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLContext *source_context = _eglLookupContext(source, disp); + _EGLContext *dest_context = _eglLookupContext(dest, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_CONTEXT(disp, source_context, EGL_FALSE, drv); + if (!dest_context) + RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_FALSE); + + ret = drv->API.CopyContextMESA(drv, disp, + source_context, dest_context, mask); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean +eglGetScreensMESA(EGLDisplay dpy, EGLScreenMESA *screens, + EGLint max_screens, EGLint *num_screens) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv); + ret = drv->API.GetScreensMESA(drv, disp, screens, max_screens, num_screens); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLSurface +eglCreateScreenSurfaceMESA(EGLDisplay dpy, EGLConfig config, + const EGLint *attrib_list) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLConfig *conf = _eglLookupConfig(config, disp); + _EGLDriver *drv; + _EGLSurface *surf; + EGLSurface ret; + + _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv); + + surf = drv->API.CreateScreenSurfaceMESA(drv, disp, conf, attrib_list); + ret = (surf) ? _eglLinkSurface(surf, disp) : EGL_NO_SURFACE; + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean +eglShowScreenSurfaceMESA(EGLDisplay dpy, EGLint screen, + EGLSurface surface, EGLModeMESA mode) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLScreen *scrn = _eglLookupScreen((EGLScreenMESA) screen, disp); + _EGLSurface *surf = _eglLookupSurface(surface, disp); + _EGLMode *m = _eglLookupMode(mode, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_SCREEN(disp, scrn, EGL_FALSE, drv); + if (!surf && surface != EGL_NO_SURFACE) + RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE); + if (!m && mode != EGL_NO_MODE_MESA) + RETURN_EGL_ERROR(disp, EGL_BAD_MODE_MESA, EGL_FALSE); + + ret = drv->API.ShowScreenSurfaceMESA(drv, disp, scrn, surf, m); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean +eglScreenPositionMESA(EGLDisplay dpy, EGLScreenMESA screen, EGLint x, EGLint y) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLScreen *scrn = _eglLookupScreen(screen, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_SCREEN(disp, scrn, EGL_FALSE, drv); + ret = drv->API.ScreenPositionMESA(drv, disp, scrn, x, y); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean +eglQueryScreenMESA(EGLDisplay dpy, EGLScreenMESA screen, + EGLint attribute, EGLint *value) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLScreen *scrn = _eglLookupScreen(screen, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_SCREEN(disp, scrn, EGL_FALSE, drv); + ret = drv->API.QueryScreenMESA(drv, disp, scrn, attribute, value); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean +eglQueryScreenSurfaceMESA(EGLDisplay dpy, EGLScreenMESA screen, + EGLSurface *surface) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLScreen *scrn = _eglLookupScreen((EGLScreenMESA) screen, disp); + _EGLDriver *drv; + _EGLSurface *surf; + EGLBoolean ret; + + _EGL_CHECK_SCREEN(disp, scrn, EGL_FALSE, drv); + ret = drv->API.QueryScreenSurfaceMESA(drv, disp, scrn, &surf); + if (ret && surface) + *surface = _eglGetSurfaceHandle(surf); + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean +eglQueryScreenModeMESA(EGLDisplay dpy, EGLScreenMESA screen, EGLModeMESA *mode) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLScreen *scrn = _eglLookupScreen((EGLScreenMESA) screen, disp); + _EGLDriver *drv; + _EGLMode *m; + EGLBoolean ret; + + _EGL_CHECK_SCREEN(disp, scrn, EGL_FALSE, drv); + ret = drv->API.QueryScreenModeMESA(drv, disp, scrn, &m); + if (ret && mode) + *mode = m->Handle; + + RETURN_EGL_EVAL(disp, ret); +} + + +const char * +eglQueryModeStringMESA(EGLDisplay dpy, EGLModeMESA mode) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLMode *m = _eglLookupMode(mode, disp); + _EGLDriver *drv; + const char *ret; + + _EGL_CHECK_MODE(disp, m, NULL, drv); + ret = drv->API.QueryModeStringMESA(drv, disp, m); + + RETURN_EGL_EVAL(disp, ret); +} + + +#endif /* EGL_MESA_screen_surface */ + + +/** + ** EGL 1.2 + **/ + +#ifdef EGL_VERSION_1_2 + + +/** + * Specify the client API to use for subsequent calls including: + * eglCreateContext() + * eglGetCurrentContext() + * eglGetCurrentDisplay() + * eglGetCurrentSurface() + * eglMakeCurrent(when the ctx parameter is EGL NO CONTEXT) + * eglWaitClient() + * eglWaitNative() + * See section 3.7 "Rendering Context" in the EGL specification for details. + */ +EGLBoolean +eglBindAPI(EGLenum api) +{ + _EGLThreadInfo *t = _eglGetCurrentThread(); + + if (_eglIsCurrentThreadDummy()) + RETURN_EGL_ERROR(NULL, EGL_BAD_ALLOC, EGL_FALSE); + + if (!_eglIsApiValid(api)) + RETURN_EGL_ERROR(NULL, EGL_BAD_PARAMETER, EGL_FALSE); + + t->CurrentAPIIndex = _eglConvertApiToIndex(api); + + RETURN_EGL_SUCCESS(NULL, EGL_TRUE); +} + + +/** + * Return the last value set with eglBindAPI(). + */ +EGLenum +eglQueryAPI(void) +{ + _EGLThreadInfo *t = _eglGetCurrentThread(); + EGLenum ret; + + /* returns one of EGL_OPENGL_API, EGL_OPENGL_ES_API or EGL_OPENVG_API */ + ret = _eglConvertApiFromIndex(t->CurrentAPIIndex); + + RETURN_EGL_SUCCESS(NULL, ret); +} + + +EGLSurface +eglCreatePbufferFromClientBuffer(EGLDisplay dpy, EGLenum buftype, + EGLClientBuffer buffer, EGLConfig config, + const EGLint *attrib_list) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLConfig *conf = _eglLookupConfig(config, disp); + _EGLDriver *drv; + _EGLSurface *surf; + EGLSurface ret; + + _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv); + + surf = drv->API.CreatePbufferFromClientBuffer(drv, disp, buftype, buffer, + conf, attrib_list); + ret = (surf) ? _eglLinkSurface(surf, disp) : EGL_NO_SURFACE; + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean +eglReleaseThread(void) +{ + /* unbind current contexts */ + if (!_eglIsCurrentThreadDummy()) { + _EGLThreadInfo *t = _eglGetCurrentThread(); + EGLint api_index = t->CurrentAPIIndex; + EGLint i; + + for (i = 0; i < _EGL_API_NUM_APIS; i++) { + _EGLContext *ctx = t->CurrentContexts[i]; + if (ctx) { + _EGLDisplay *disp = ctx->Resource.Display; + _EGLDriver *drv; + + t->CurrentAPIIndex = i; + + _eglLockMutex(&disp->Mutex); + drv = disp->Driver; + (void) drv->API.MakeCurrent(drv, disp, NULL, NULL, NULL); + _eglUnlockMutex(&disp->Mutex); + } + } + + t->CurrentAPIIndex = api_index; + } + + _eglDestroyCurrentThread(); + + RETURN_EGL_SUCCESS(NULL, EGL_TRUE); +} + + +#endif /* EGL_VERSION_1_2 */ + + +#ifdef EGL_KHR_image_base + + +EGLImageKHR +eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, + EGLClientBuffer buffer, const EGLint *attr_list) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLContext *context = _eglLookupContext(ctx, disp); + _EGLDriver *drv; + _EGLImage *img; + EGLImageKHR ret; + + _EGL_CHECK_DISPLAY(disp, EGL_NO_IMAGE_KHR, drv); + if (!context && ctx != EGL_NO_CONTEXT) + RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); + + img = drv->API.CreateImageKHR(drv, + disp, context, target, buffer, attr_list); + ret = (img) ? _eglLinkImage(img, disp) : EGL_NO_IMAGE_KHR; + + RETURN_EGL_EVAL(disp, ret); +} + + +EGLBoolean +eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR image) +{ + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLImage *img = _eglLookupImage(image, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv); + if (!img) + RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE); + + _eglUnlinkImage(img); + ret = drv->API.DestroyImageKHR(drv, disp, img); + + RETURN_EGL_EVAL(disp, ret); +} + + +#endif /* EGL_KHR_image_base */ + + +#ifdef EGL_NOK_swap_region + +EGLBoolean +eglSwapBuffersRegionNOK(EGLDisplay dpy, EGLSurface surface, + EGLint numRects, const EGLint *rects) +{ + _EGLContext *ctx = _eglGetCurrentContext(); + _EGLDisplay *disp = _eglLockDisplay(dpy); + _EGLSurface *surf = _eglLookupSurface(surface, disp); + _EGLDriver *drv; + EGLBoolean ret; + + _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv); + + /* surface must be bound to current context in EGL 1.4 */ + if (!ctx || !_eglIsContextLinked(ctx) || surf != ctx->DrawSurface) + RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE); + + if (drv->API.SwapBuffersRegionNOK) + ret = drv->API.SwapBuffersRegionNOK(drv, disp, surf, numRects, rects); + else + ret = drv->API.SwapBuffers(drv, disp, surf); + + RETURN_EGL_EVAL(disp, ret); +} + +#endif /* EGL_NOK_swap_region */ diff --git a/src/egl/main/eglapi.h b/src/egl/main/eglapi.h new file mode 100644 index 0000000000..d8c8b49a49 --- /dev/null +++ b/src/egl/main/eglapi.h @@ -0,0 +1,146 @@ +#ifndef EGLAPI_INCLUDED +#define EGLAPI_INCLUDED + +/** + * A generic function ptr type + */ +typedef void (*_EGLProc)(void); + + +/** + * Typedefs for all EGL API entrypoint functions. + */ + +/* driver funcs */ +typedef EGLBoolean (*Initialize_t)(_EGLDriver *, _EGLDisplay *dpy, EGLint *major, EGLint *minor); +typedef EGLBoolean (*Terminate_t)(_EGLDriver *, _EGLDisplay *dpy); + +/* config funcs */ +typedef EGLBoolean (*GetConfigs_t)(_EGLDriver *drv, _EGLDisplay *dpy, EGLConfig *configs, EGLint config_size, EGLint *num_config); +typedef EGLBoolean (*ChooseConfig_t)(_EGLDriver *drv, _EGLDisplay *dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config); +typedef EGLBoolean (*GetConfigAttrib_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *config, EGLint attribute, EGLint *value); + +/* context funcs */ +typedef _EGLContext *(*CreateContext_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *config, _EGLContext *share_list, const EGLint *attrib_list); +typedef EGLBoolean (*DestroyContext_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx); +/* this is the only function (other than Initialize) that may be called with an uninitialized display */ +typedef EGLBoolean (*MakeCurrent_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *draw, _EGLSurface *read, _EGLContext *ctx); +typedef EGLBoolean (*QueryContext_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx, EGLint attribute, EGLint *value); + +/* surface funcs */ +typedef _EGLSurface *(*CreateWindowSurface_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *config, EGLNativeWindowType window, const EGLint *attrib_list); +typedef _EGLSurface *(*CreatePixmapSurface_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *config, EGLNativePixmapType pixmap, const EGLint *attrib_list); +typedef _EGLSurface *(*CreatePbufferSurface_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *config, const EGLint *attrib_list); +typedef EGLBoolean (*DestroySurface_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface); +typedef EGLBoolean (*QuerySurface_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface, EGLint attribute, EGLint *value); +typedef EGLBoolean (*SurfaceAttrib_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface, EGLint attribute, EGLint value); +typedef EGLBoolean (*BindTexImage_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface, EGLint buffer); +typedef EGLBoolean (*ReleaseTexImage_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface, EGLint buffer); +typedef EGLBoolean (*SwapInterval_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint interval); +typedef EGLBoolean (*SwapBuffers_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *draw); +typedef EGLBoolean (*CopyBuffers_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface, EGLNativePixmapType target); + +/* misc funcs */ +typedef const char *(*QueryString_t)(_EGLDriver *drv, _EGLDisplay *dpy, EGLint name); +typedef EGLBoolean (*WaitClient_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx); +typedef EGLBoolean (*WaitNative_t)(_EGLDriver *drv, _EGLDisplay *dpy, EGLint engine); + +/* this function may be called from multiple threads at the same time */ +typedef _EGLProc (*GetProcAddress_t)(_EGLDriver *drv, const char *procname); + + + +#ifdef EGL_MESA_screen_surface +typedef EGLBoolean (*ChooseModeMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *screen, const EGLint *attrib_list, EGLModeMESA *modes, EGLint modes_size, EGLint *num_modes); +typedef EGLBoolean (*GetModesMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *screen, EGLModeMESA *modes, EGLint mode_size, EGLint *num_mode); +typedef EGLBoolean (*GetModeAttribMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLMode *mode, EGLint attribute, EGLint *value); +typedef EGLBoolean (*CopyContextMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *source, _EGLContext *dest, EGLint mask); +typedef EGLBoolean (*GetScreensMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, EGLScreenMESA *screens, EGLint max_screens, EGLint *num_screens); +typedef _EGLSurface *(*CreateScreenSurfaceMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *config, const EGLint *attrib_list); +typedef EGLBoolean (*ShowScreenSurfaceMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *screen, _EGLSurface *surface, _EGLMode *mode); +typedef EGLBoolean (*ScreenPositionMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *screen, EGLint x, EGLint y); +typedef EGLBoolean (*QueryScreenMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *screen, EGLint attribute, EGLint *value); +typedef EGLBoolean (*QueryScreenSurfaceMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *screen, _EGLSurface **surface); +typedef EGLBoolean (*QueryScreenModeMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *screen, _EGLMode **mode); +typedef const char * (*QueryModeStringMESA_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLMode *mode); +#endif /* EGL_MESA_screen_surface */ + + +#ifdef EGL_VERSION_1_2 +typedef _EGLSurface *(*CreatePbufferFromClientBuffer_t)(_EGLDriver *drv, _EGLDisplay *dpy, EGLenum buftype, EGLClientBuffer buffer, _EGLConfig *config, const EGLint *attrib_list); +#endif /* EGL_VERSION_1_2 */ + + +#ifdef EGL_KHR_image_base +typedef _EGLImage *(*CreateImageKHR_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attr_list); +typedef EGLBoolean (*DestroyImageKHR_t)(_EGLDriver *drv, _EGLDisplay *dpy, _EGLImage *image); +#endif /* EGL_KHR_image_base */ + +#ifdef EGL_NOK_swap_region +typedef EGLBoolean (*SwapBuffersRegionNOK_t)(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf, EGLint numRects, const EGLint *rects); +#endif + +/** + * The API dispatcher jumps through these functions + */ +struct _egl_api +{ + Initialize_t Initialize; + Terminate_t Terminate; + + GetConfigs_t GetConfigs; + ChooseConfig_t ChooseConfig; + GetConfigAttrib_t GetConfigAttrib; + + CreateContext_t CreateContext; + DestroyContext_t DestroyContext; + MakeCurrent_t MakeCurrent; + QueryContext_t QueryContext; + + CreateWindowSurface_t CreateWindowSurface; + CreatePixmapSurface_t CreatePixmapSurface; + CreatePbufferSurface_t CreatePbufferSurface; + DestroySurface_t DestroySurface; + QuerySurface_t QuerySurface; + SurfaceAttrib_t SurfaceAttrib; + BindTexImage_t BindTexImage; + ReleaseTexImage_t ReleaseTexImage; + SwapInterval_t SwapInterval; + SwapBuffers_t SwapBuffers; + CopyBuffers_t CopyBuffers; + + QueryString_t QueryString; + WaitClient_t WaitClient; + WaitNative_t WaitNative; + GetProcAddress_t GetProcAddress; + +#ifdef EGL_MESA_screen_surface + ChooseModeMESA_t ChooseModeMESA; + GetModesMESA_t GetModesMESA; + GetModeAttribMESA_t GetModeAttribMESA; + CopyContextMESA_t CopyContextMESA; + GetScreensMESA_t GetScreensMESA; + CreateScreenSurfaceMESA_t CreateScreenSurfaceMESA; + ShowScreenSurfaceMESA_t ShowScreenSurfaceMESA; + ScreenPositionMESA_t ScreenPositionMESA; + QueryScreenMESA_t QueryScreenMESA; + QueryScreenSurfaceMESA_t QueryScreenSurfaceMESA; + QueryScreenModeMESA_t QueryScreenModeMESA; + QueryModeStringMESA_t QueryModeStringMESA; +#endif /* EGL_MESA_screen_surface */ + +#ifdef EGL_VERSION_1_2 + CreatePbufferFromClientBuffer_t CreatePbufferFromClientBuffer; +#endif + +#ifdef EGL_KHR_image_base + CreateImageKHR_t CreateImageKHR; + DestroyImageKHR_t DestroyImageKHR; +#endif /* EGL_KHR_image_base */ + +#ifdef EGL_NOK_swap_region + SwapBuffersRegionNOK_t SwapBuffersRegionNOK; +#endif +}; + +#endif /* EGLAPI_INCLUDED */ diff --git a/src/egl/main/eglcompiler.h b/src/egl/main/eglcompiler.h new file mode 100644 index 0000000000..90c75e84b2 --- /dev/null +++ b/src/egl/main/eglcompiler.h @@ -0,0 +1,94 @@ +#ifndef EGLCOMPILER_INCLUDED +#define EGLCOMPILER_INCLUDED + + +/** + * Get standard integer types + */ +#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) +# include <stdint.h> +#elif defined(_MSC_VER) + typedef __int8 int8_t; + typedef unsigned __int8 uint8_t; + typedef __int16 int16_t; + typedef unsigned __int16 uint16_t; + typedef __int32 int32_t; + typedef unsigned __int32 uint32_t; + typedef __int64 int64_t; + typedef unsigned __int64 uint64_t; + +# if defined(_WIN64) + typedef __int64 intptr_t; + typedef unsigned __int64 uintptr_t; +# else + typedef __int32 intptr_t; + typedef unsigned __int32 uintptr_t; +# endif + +# define INT64_C(__val) __val##i64 +# define UINT64_C(__val) __val##ui64 +#else +/* hope the best instead of adding a bunch of ifdef's */ +# include <stdint.h> +#endif + + +/** + * Function inlining + */ +#if defined(__GNUC__) +# define INLINE __inline__ +#elif defined(__MSC__) +# define INLINE __inline +#elif defined(_MSC_VER) +# define INLINE __inline +#elif defined(__ICL) +# define INLINE __inline +#elif defined(__INTEL_COMPILER) +# define INLINE inline +#elif defined(__WATCOMC__) && (__WATCOMC__ >= 1100) +# define INLINE __inline +#elif defined(__SUNPRO_C) && defined(__C99FEATURES__) +# define INLINE inline +# define __inline inline +# define __inline__ inline +#elif (__STDC_VERSION__ >= 199901L) /* C99 */ +# define INLINE inline +#else +# define INLINE +#endif + + +/** + * Function visibility + */ +#ifndef PUBLIC +# if defined(__GNUC__) || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590)) +# define PUBLIC __attribute__((visibility("default"))) +# elif defined(_MSC_VER) +# define PUBLIC __declspec(dllexport) +# else +# define PUBLIC +# endif +#endif + +/** + * The __FUNCTION__ gcc variable is generally only used for debugging. + * If we're not using gcc, define __FUNCTION__ as a cpp symbol here. + * Don't define it if using a newer Windows compiler. + */ +#ifndef __FUNCTION__ +# if defined(__VMS) +# define __FUNCTION__ "VMS$NL:" +# elif (!defined __GNUC__) && (!defined __xlC__) && \ + (!defined(_MSC_VER) || _MSC_VER < 1300) +# if (__STDC_VERSION__ >= 199901L) /* C99 */ || \ + (defined(__SUNPRO_C) && defined(__C99FEATURES__)) +# define __FUNCTION__ __func__ +# else +# define __FUNCTION__ "<unknown>" +# endif +# endif +#endif + +#endif /* EGLCOMPILER_INCLUDED */ diff --git a/src/egl/main/eglconfig.c b/src/egl/main/eglconfig.c new file mode 100644 index 0000000000..fa947d7688 --- /dev/null +++ b/src/egl/main/eglconfig.c @@ -0,0 +1,848 @@ +/** + * EGL Configuration (pixel format) functions. + */ + + +#include <stdlib.h> +#include <string.h> +#include <assert.h> +#include "eglconfig.h" +#include "egldisplay.h" +#include "eglcurrent.h" +#include "egllog.h" + + +#define MIN2(A, B) (((A) < (B)) ? (A) : (B)) + + +/** + * Init the given _EGLconfig to default values. + * \param id the configuration's ID. + * + * Note that id must be positive for the config to be valid. + * It is also recommended that when there are N configs, their + * IDs are from 1 to N respectively. + */ +void +_eglInitConfig(_EGLConfig *config, _EGLDisplay *dpy, EGLint id) +{ + memset(config, 0, sizeof(*config)); + + config->Display = dpy; + + /* some attributes take non-zero default values */ + SET_CONFIG_ATTRIB(config, EGL_CONFIG_ID, id); + SET_CONFIG_ATTRIB(config, EGL_CONFIG_CAVEAT, EGL_NONE); + SET_CONFIG_ATTRIB(config, EGL_TRANSPARENT_TYPE, EGL_NONE); + SET_CONFIG_ATTRIB(config, EGL_NATIVE_VISUAL_TYPE, EGL_NONE); +#ifdef EGL_VERSION_1_2 + SET_CONFIG_ATTRIB(config, EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER); +#endif /* EGL_VERSION_1_2 */ +} + + +/** + * Link a config to a display and return the handle of the link. + * The handle can be passed to client directly. + * + * Note that we just save the ptr to the config (we don't copy the config). + */ +EGLConfig +_eglAddConfig(_EGLDisplay *dpy, _EGLConfig *conf) +{ + _EGLConfig **configs; + + /* sanity check */ + assert(GET_CONFIG_ATTRIB(conf, EGL_CONFIG_ID) > 0); + + configs = dpy->Configs; + if (dpy->NumConfigs >= dpy->MaxConfigs) { + EGLint new_size = dpy->MaxConfigs + 16; + assert(dpy->NumConfigs < new_size); + + configs = realloc(dpy->Configs, new_size * sizeof(dpy->Configs[0])); + if (!configs) + return (EGLConfig) NULL; + + dpy->Configs = configs; + dpy->MaxConfigs = new_size; + } + + conf->Display = dpy; + dpy->Configs[dpy->NumConfigs++] = conf; + + return (EGLConfig) conf; +} + + +EGLBoolean +_eglCheckConfigHandle(EGLConfig config, _EGLDisplay *dpy) +{ + EGLint num_configs = (dpy) ? dpy->NumConfigs : 0; + EGLint i; + + for (i = 0; i < num_configs; i++) { + _EGLConfig *conf = dpy->Configs[i]; + if (conf == (_EGLConfig *) config) { + assert(conf->Display == dpy); + break; + } + } + return (i < num_configs); +} + + +enum { + /* types */ + ATTRIB_TYPE_INTEGER, + ATTRIB_TYPE_BOOLEAN, + ATTRIB_TYPE_BITMASK, + ATTRIB_TYPE_ENUM, + ATTRIB_TYPE_PSEUDO, /* non-queryable */ + ATTRIB_TYPE_PLATFORM, /* platform-dependent */ + /* criteria */ + ATTRIB_CRITERION_EXACT, + ATTRIB_CRITERION_ATLEAST, + ATTRIB_CRITERION_MASK, + ATTRIB_CRITERION_SPECIAL, + ATTRIB_CRITERION_IGNORE +}; + + +/* EGL spec Table 3.1 and 3.4 */ +static const struct { + EGLint attr; + EGLint type; + EGLint criterion; + EGLint default_value; +} _eglValidationTable[] = +{ + { EGL_BUFFER_SIZE, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_ATLEAST, + 0 }, + { EGL_RED_SIZE, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_ATLEAST, + 0 }, + { EGL_GREEN_SIZE, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_ATLEAST, + 0 }, + { EGL_BLUE_SIZE, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_ATLEAST, + 0 }, + { EGL_LUMINANCE_SIZE, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_ATLEAST, + 0 }, + { EGL_ALPHA_SIZE, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_ATLEAST, + 0 }, + { EGL_ALPHA_MASK_SIZE, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_ATLEAST, + 0 }, + { EGL_BIND_TO_TEXTURE_RGB, ATTRIB_TYPE_BOOLEAN, + ATTRIB_CRITERION_EXACT, + EGL_DONT_CARE }, + { EGL_BIND_TO_TEXTURE_RGBA, ATTRIB_TYPE_BOOLEAN, + ATTRIB_CRITERION_EXACT, + EGL_DONT_CARE }, + { EGL_COLOR_BUFFER_TYPE, ATTRIB_TYPE_ENUM, + ATTRIB_CRITERION_EXACT, + EGL_RGB_BUFFER }, + { EGL_CONFIG_CAVEAT, ATTRIB_TYPE_ENUM, + ATTRIB_CRITERION_EXACT, + EGL_DONT_CARE }, + { EGL_CONFIG_ID, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_EXACT, + EGL_DONT_CARE }, + { EGL_CONFORMANT, ATTRIB_TYPE_BITMASK, + ATTRIB_CRITERION_MASK, + 0 }, + { EGL_DEPTH_SIZE, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_ATLEAST, + 0 }, + { EGL_LEVEL, ATTRIB_TYPE_PLATFORM, + ATTRIB_CRITERION_EXACT, + 0 }, + { EGL_MAX_PBUFFER_WIDTH, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_IGNORE, + 0 }, + { EGL_MAX_PBUFFER_HEIGHT, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_IGNORE, + 0 }, + { EGL_MAX_PBUFFER_PIXELS, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_IGNORE, + 0 }, + { EGL_MAX_SWAP_INTERVAL, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_EXACT, + EGL_DONT_CARE }, + { EGL_MIN_SWAP_INTERVAL, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_EXACT, + EGL_DONT_CARE }, + { EGL_NATIVE_RENDERABLE, ATTRIB_TYPE_BOOLEAN, + ATTRIB_CRITERION_EXACT, + EGL_DONT_CARE }, + { EGL_NATIVE_VISUAL_ID, ATTRIB_TYPE_PLATFORM, + ATTRIB_CRITERION_IGNORE, + 0 }, + { EGL_NATIVE_VISUAL_TYPE, ATTRIB_TYPE_PLATFORM, + ATTRIB_CRITERION_EXACT, + EGL_DONT_CARE }, + { EGL_RENDERABLE_TYPE, ATTRIB_TYPE_BITMASK, + ATTRIB_CRITERION_MASK, + EGL_OPENGL_ES_BIT }, + { EGL_SAMPLE_BUFFERS, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_ATLEAST, + 0 }, + { EGL_SAMPLES, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_ATLEAST, + 0 }, + { EGL_STENCIL_SIZE, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_ATLEAST, + 0 }, + { EGL_SURFACE_TYPE, ATTRIB_TYPE_BITMASK, + ATTRIB_CRITERION_MASK, + EGL_WINDOW_BIT }, + { EGL_TRANSPARENT_TYPE, ATTRIB_TYPE_ENUM, + ATTRIB_CRITERION_EXACT, + EGL_NONE }, + { EGL_TRANSPARENT_RED_VALUE, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_EXACT, + EGL_DONT_CARE }, + { EGL_TRANSPARENT_GREEN_VALUE, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_EXACT, + EGL_DONT_CARE }, + { EGL_TRANSPARENT_BLUE_VALUE, ATTRIB_TYPE_INTEGER, + ATTRIB_CRITERION_EXACT, + EGL_DONT_CARE }, + /* these are not real attributes */ + { EGL_MATCH_NATIVE_PIXMAP, ATTRIB_TYPE_PSEUDO, + ATTRIB_CRITERION_SPECIAL, + EGL_NONE }, + /* there is a gap before EGL_SAMPLES */ + { 0x3030, ATTRIB_TYPE_PSEUDO, + ATTRIB_CRITERION_IGNORE, + 0 }, + { EGL_NONE, ATTRIB_TYPE_PSEUDO, + ATTRIB_CRITERION_IGNORE, + 0 }, + + { EGL_Y_INVERTED_NOK, ATTRIB_TYPE_BOOLEAN, + ATTRIB_CRITERION_EXACT, + EGL_DONT_CARE }, + +}; + + +/** + * Return true if a config is valid. When for_matching is true, + * EGL_DONT_CARE is accepted as a valid attribute value, and checks + * for conflicting attribute values are skipped. + * + * Note that some attributes are platform-dependent and are not + * checked. + */ +EGLBoolean +_eglValidateConfig(const _EGLConfig *conf, EGLBoolean for_matching) +{ + EGLint i, attr, val; + EGLBoolean valid = EGL_TRUE; + EGLint red_size = 0, green_size = 0, blue_size = 0, luminance_size = 0; + EGLint alpha_size = 0, buffer_size = 0; + + /* all attributes should have been listed */ + assert(ARRAY_SIZE(_eglValidationTable) == _EGL_CONFIG_NUM_ATTRIBS); + + /* check attributes by their types */ + for (i = 0; i < ARRAY_SIZE(_eglValidationTable); i++) { + EGLint mask; + + attr = _eglValidationTable[i].attr; + val = GET_CONFIG_ATTRIB(conf, attr); + + switch (_eglValidationTable[i].type) { + case ATTRIB_TYPE_INTEGER: + switch (attr) { + case EGL_CONFIG_ID: + /* config id must be positive */ + if (val <= 0) + valid = EGL_FALSE; + break; + case EGL_SAMPLE_BUFFERS: + /* there can be at most 1 sample buffer */ + if (val > 1) + valid = EGL_FALSE; + break; + case EGL_RED_SIZE: + red_size = val; + break; + case EGL_GREEN_SIZE: + green_size = val; + break; + case EGL_BLUE_SIZE: + blue_size = val; + break; + case EGL_LUMINANCE_SIZE: + luminance_size = val; + break; + case EGL_ALPHA_SIZE: + alpha_size = val; + break; + case EGL_BUFFER_SIZE: + buffer_size = val; + break; + } + if (val < 0) + valid = EGL_FALSE; + break; + case ATTRIB_TYPE_BOOLEAN: + if (val != EGL_TRUE && val != EGL_FALSE) + valid = EGL_FALSE; + break; + case ATTRIB_TYPE_ENUM: + switch (attr) { + case EGL_CONFIG_CAVEAT: + if (val != EGL_NONE && val != EGL_SLOW_CONFIG && + val != EGL_NON_CONFORMANT_CONFIG) + valid = EGL_FALSE; + break; + case EGL_TRANSPARENT_TYPE: + if (val != EGL_NONE && val != EGL_TRANSPARENT_RGB) + valid = EGL_FALSE; + break; + case EGL_COLOR_BUFFER_TYPE: + if (val != EGL_RGB_BUFFER && val != EGL_LUMINANCE_BUFFER) + valid = EGL_FALSE; + break; + default: + assert(0); + break; + } + break; + case ATTRIB_TYPE_BITMASK: + switch (attr) { + case EGL_SURFACE_TYPE: + mask = EGL_PBUFFER_BIT | + EGL_PIXMAP_BIT | + EGL_WINDOW_BIT | + EGL_VG_COLORSPACE_LINEAR_BIT | + EGL_VG_ALPHA_FORMAT_PRE_BIT | + EGL_MULTISAMPLE_RESOLVE_BOX_BIT | + EGL_SWAP_BEHAVIOR_PRESERVED_BIT; + if (conf->Display->Extensions.MESA_screen_surface) + mask |= EGL_SCREEN_BIT_MESA; + break; + case EGL_RENDERABLE_TYPE: + case EGL_CONFORMANT: + mask = EGL_OPENGL_ES_BIT | + EGL_OPENVG_BIT | + EGL_OPENGL_ES2_BIT | + EGL_OPENGL_BIT; + break; + default: + assert(0); + break; + } + if (val & ~mask) + valid = EGL_FALSE; + break; + case ATTRIB_TYPE_PLATFORM: + /* unable to check platform-dependent attributes here */ + break; + case ATTRIB_TYPE_PSEUDO: + /* pseudo attributes should not be set */ + if (val != 0) + valid = EGL_FALSE; + break; + default: + assert(0); + break; + } + + if (!valid && for_matching) { + /* accept EGL_DONT_CARE as a valid value */ + if (val == EGL_DONT_CARE) + valid = EGL_TRUE; + if (_eglValidationTable[i].criterion == ATTRIB_CRITERION_SPECIAL) + valid = EGL_TRUE; + } + if (!valid) { + _eglLog(_EGL_DEBUG, + "attribute 0x%04x has an invalid value 0x%x", attr, val); + break; + } + } + + /* any invalid attribute value should have been catched */ + if (!valid || for_matching) + return valid; + + /* now check for conflicting attribute values */ + + switch (GET_CONFIG_ATTRIB(conf, EGL_COLOR_BUFFER_TYPE)) { + case EGL_RGB_BUFFER: + if (luminance_size) + valid = EGL_FALSE; + if (red_size + green_size + blue_size + alpha_size != buffer_size) + valid = EGL_FALSE; + break; + case EGL_LUMINANCE_BUFFER: + if (red_size || green_size || blue_size) + valid = EGL_FALSE; + if (luminance_size + alpha_size != buffer_size) + valid = EGL_FALSE; + break; + } + if (!valid) { + _eglLog(_EGL_DEBUG, "conflicting color buffer type and channel sizes"); + return EGL_FALSE; + } + + val = GET_CONFIG_ATTRIB(conf, EGL_SAMPLE_BUFFERS); + if (!val && GET_CONFIG_ATTRIB(conf, EGL_SAMPLES)) + valid = EGL_FALSE; + if (!valid) { + _eglLog(_EGL_DEBUG, "conflicting samples and sample buffers"); + return EGL_FALSE; + } + + val = GET_CONFIG_ATTRIB(conf, EGL_SURFACE_TYPE); + if (!(val & EGL_WINDOW_BIT)) { + if (GET_CONFIG_ATTRIB(conf, EGL_NATIVE_VISUAL_ID) != 0 || + GET_CONFIG_ATTRIB(conf, EGL_NATIVE_VISUAL_TYPE) != EGL_NONE) + valid = EGL_FALSE; + } + if (!(val & EGL_PBUFFER_BIT)) { + if (GET_CONFIG_ATTRIB(conf, EGL_BIND_TO_TEXTURE_RGB) || + GET_CONFIG_ATTRIB(conf, EGL_BIND_TO_TEXTURE_RGBA)) + valid = EGL_FALSE; + } + if (!valid) { + _eglLog(_EGL_DEBUG, "conflicting surface type and native visual/texture binding"); + return EGL_FALSE; + } + + return valid; +} + + +/** + * Return true if a config matches the criteria. This and + * _eglParseConfigAttribList together implement the algorithm + * described in "Selection of EGLConfigs". + * + * Note that attributes that are special (currently, only + * EGL_MATCH_NATIVE_PIXMAP) are ignored. + */ +EGLBoolean +_eglMatchConfig(const _EGLConfig *conf, const _EGLConfig *criteria) +{ + EGLint attr, val, i; + EGLBoolean matched = EGL_TRUE; + + for (i = 0; i < ARRAY_SIZE(_eglValidationTable); i++) { + EGLint cmp; + if (_eglValidationTable[i].criterion == ATTRIB_CRITERION_IGNORE) + continue; + + attr = _eglValidationTable[i].attr; + cmp = GET_CONFIG_ATTRIB(criteria, attr); + if (cmp == EGL_DONT_CARE) + continue; + + val = GET_CONFIG_ATTRIB(conf, attr); + switch (_eglValidationTable[i].criterion) { + case ATTRIB_CRITERION_EXACT: + if (val != cmp) + matched = EGL_FALSE; + break; + case ATTRIB_CRITERION_ATLEAST: + if (val < cmp) + matched = EGL_FALSE; + break; + case ATTRIB_CRITERION_MASK: + if ((val & cmp) != cmp) + matched = EGL_FALSE; + break; + case ATTRIB_CRITERION_SPECIAL: + /* ignored here */ + break; + default: + assert(0); + break; + } + + if (!matched) { +#ifdef DEBUG + _eglLog(_EGL_DEBUG, + "the value (0x%x) of attribute 0x%04x did not meet the criteria (0x%x)", + val, attr, cmp); +#endif + break; + } + } + + return matched; +} + +static INLINE EGLBoolean +_eglIsConfigAttribValid(_EGLConfig *conf, EGLint attr) +{ + if (_eglIndexConfig(conf, attr) < 0) + return EGL_FALSE; + + /* there are some holes in the range */ + switch (attr) { + case 0x3030 /* a gap before EGL_SAMPLES */: + case EGL_NONE: +#ifdef EGL_VERSION_1_4 + case EGL_MATCH_NATIVE_PIXMAP: +#endif + return EGL_FALSE; + case EGL_Y_INVERTED_NOK: + return conf->Display->Extensions.NOK_texture_from_pixmap; + default: + break; + } + + return EGL_TRUE; +} + +/** + * Initialize a criteria config from the given attribute list. + * Return EGL_FALSE if any of the attribute is invalid. + */ +EGLBoolean +_eglParseConfigAttribList(_EGLConfig *conf, const EGLint *attrib_list) +{ + EGLint attr, val, i; + EGLint config_id = 0, level = 0; + EGLBoolean has_native_visual_type = EGL_FALSE; + EGLBoolean has_transparent_color = EGL_FALSE; + + /* reset to default values */ + for (i = 0; i < ARRAY_SIZE(_eglValidationTable); i++) { + attr = _eglValidationTable[i].attr; + val = _eglValidationTable[i].default_value; + SET_CONFIG_ATTRIB(conf, attr, val); + } + + /* parse the list */ + for (i = 0; attrib_list && attrib_list[i] != EGL_NONE; i += 2) { + attr = attrib_list[i]; + val = attrib_list[i + 1]; + + if (!_eglIsConfigAttribValid(conf, attr)) + return EGL_FALSE; + + SET_CONFIG_ATTRIB(conf, attr, val); + + /* rememeber some attributes for post-processing */ + switch (attr) { + case EGL_CONFIG_ID: + config_id = val; + break; + case EGL_LEVEL: + level = val; + break; + case EGL_NATIVE_VISUAL_TYPE: + has_native_visual_type = EGL_TRUE; + break; + case EGL_TRANSPARENT_RED_VALUE: + case EGL_TRANSPARENT_GREEN_VALUE: + case EGL_TRANSPARENT_BLUE_VALUE: + has_transparent_color = EGL_TRUE; + break; + default: + break; + } + } + + if (!_eglValidateConfig(conf, EGL_TRUE)) + return EGL_FALSE; + + /* the spec says that EGL_LEVEL cannot be EGL_DONT_CARE */ + if (level == EGL_DONT_CARE) + return EGL_FALSE; + + /* ignore other attributes when EGL_CONFIG_ID is given */ + if (config_id > 0) { + _eglResetConfigKeys(conf, EGL_DONT_CARE); + SET_CONFIG_ATTRIB(conf, EGL_CONFIG_ID, config_id); + } + else { + if (has_native_visual_type) { + val = GET_CONFIG_ATTRIB(conf, EGL_SURFACE_TYPE); + if (!(val & EGL_WINDOW_BIT)) + SET_CONFIG_ATTRIB(conf, EGL_NATIVE_VISUAL_TYPE, EGL_DONT_CARE); + } + + if (has_transparent_color) { + val = GET_CONFIG_ATTRIB(conf, EGL_TRANSPARENT_TYPE); + if (val == EGL_NONE) { + SET_CONFIG_ATTRIB(conf, EGL_TRANSPARENT_RED_VALUE, + EGL_DONT_CARE); + SET_CONFIG_ATTRIB(conf, EGL_TRANSPARENT_GREEN_VALUE, + EGL_DONT_CARE); + SET_CONFIG_ATTRIB(conf, EGL_TRANSPARENT_BLUE_VALUE, + EGL_DONT_CARE); + } + } + } + + return EGL_TRUE; +} + + +/** + * Decide the ordering of conf1 and conf2, under the given criteria. + * When compare_id is true, this implements the algorithm described + * in "Sorting of EGLConfigs". When compare_id is false, + * EGL_CONFIG_ID is not compared. + * + * It returns a negative integer if conf1 is considered to come + * before conf2; a positive integer if conf2 is considered to come + * before conf1; zero if the ordering cannot be decided. + * + * Note that EGL_NATIVE_VISUAL_TYPE is platform-dependent and is + * ignored here. + */ +EGLint +_eglCompareConfigs(const _EGLConfig *conf1, const _EGLConfig *conf2, + const _EGLConfig *criteria, EGLBoolean compare_id) +{ + const EGLint compare_attribs[] = { + EGL_BUFFER_SIZE, + EGL_SAMPLE_BUFFERS, + EGL_SAMPLES, + EGL_DEPTH_SIZE, + EGL_STENCIL_SIZE, + EGL_ALPHA_MASK_SIZE, + }; + EGLint val1, val2; + EGLBoolean rgb_buffer; + EGLint i; + + if (conf1 == conf2) + return 0; + + /* the enum values have the desired ordering */ + assert(EGL_NONE < EGL_SLOW_CONFIG); + assert(EGL_SLOW_CONFIG < EGL_NON_CONFORMANT_CONFIG); + val1 = GET_CONFIG_ATTRIB(conf1, EGL_CONFIG_CAVEAT); + val2 = GET_CONFIG_ATTRIB(conf2, EGL_CONFIG_CAVEAT); + if (val1 != val2) + return (val1 - val2); + + /* the enum values have the desired ordering */ + assert(EGL_RGB_BUFFER < EGL_LUMINANCE_BUFFER); + val1 = GET_CONFIG_ATTRIB(conf1, EGL_COLOR_BUFFER_TYPE); + val2 = GET_CONFIG_ATTRIB(conf2, EGL_COLOR_BUFFER_TYPE); + if (val1 != val2) + return (val1 - val2); + rgb_buffer = (val1 == EGL_RGB_BUFFER); + + if (criteria) { + val1 = val2 = 0; + if (rgb_buffer) { + if (GET_CONFIG_ATTRIB(criteria, EGL_RED_SIZE) > 0) { + val1 += GET_CONFIG_ATTRIB(conf1, EGL_RED_SIZE); + val2 += GET_CONFIG_ATTRIB(conf2, EGL_RED_SIZE); + } + if (GET_CONFIG_ATTRIB(criteria, EGL_GREEN_SIZE) > 0) { + val1 += GET_CONFIG_ATTRIB(conf1, EGL_GREEN_SIZE); + val2 += GET_CONFIG_ATTRIB(conf2, EGL_GREEN_SIZE); + } + if (GET_CONFIG_ATTRIB(criteria, EGL_BLUE_SIZE) > 0) { + val1 += GET_CONFIG_ATTRIB(conf1, EGL_BLUE_SIZE); + val2 += GET_CONFIG_ATTRIB(conf2, EGL_BLUE_SIZE); + } + } + else { + if (GET_CONFIG_ATTRIB(criteria, EGL_LUMINANCE_SIZE) > 0) { + val1 += GET_CONFIG_ATTRIB(conf1, EGL_LUMINANCE_SIZE); + val2 += GET_CONFIG_ATTRIB(conf2, EGL_LUMINANCE_SIZE); + } + } + if (GET_CONFIG_ATTRIB(criteria, EGL_ALPHA_SIZE) > 0) { + val1 += GET_CONFIG_ATTRIB(conf1, EGL_ALPHA_SIZE); + val2 += GET_CONFIG_ATTRIB(conf2, EGL_ALPHA_SIZE); + } + } + else { + /* assume the default criteria, which gives no specific ordering */ + val1 = val2 = 0; + } + + /* for color bits, larger one is preferred */ + if (val1 != val2) + return (val2 - val1); + + for (i = 0; i < ARRAY_SIZE(compare_attribs); i++) { + val1 = GET_CONFIG_ATTRIB(conf1, compare_attribs[i]); + val2 = GET_CONFIG_ATTRIB(conf2, compare_attribs[i]); + if (val1 != val2) + return (val1 - val2); + } + + /* EGL_NATIVE_VISUAL_TYPE cannot be compared here */ + + if (compare_id) { + val1 = GET_CONFIG_ATTRIB(conf1, EGL_CONFIG_ID); + val2 = GET_CONFIG_ATTRIB(conf2, EGL_CONFIG_ID); + assert(val1 != val2); + } + else { + val1 = val2 = 0; + } + + return (val1 - val2); +} + + +static INLINE +void _eglSwapConfigs(const _EGLConfig **conf1, const _EGLConfig **conf2) +{ + const _EGLConfig *tmp = *conf1; + *conf1 = *conf2; + *conf2 = tmp; +} + + +/** + * Quick sort an array of configs. This differs from the standard + * qsort() in that the compare function accepts an additional + * argument. + */ +void +_eglSortConfigs(const _EGLConfig **configs, EGLint count, + EGLint (*compare)(const _EGLConfig *, const _EGLConfig *, + void *), + void *priv_data) +{ + const EGLint pivot = 0; + EGLint i, j; + + if (count <= 1) + return; + + _eglSwapConfigs(&configs[pivot], &configs[count / 2]); + i = 1; + j = count - 1; + do { + while (i < count && compare(configs[i], configs[pivot], priv_data) < 0) + i++; + while (compare(configs[j], configs[pivot], priv_data) > 0) + j--; + if (i < j) { + _eglSwapConfigs(&configs[i], &configs[j]); + i++; + j--; + } + else if (i == j) { + i++; + j--; + break; + } + } while (i <= j); + _eglSwapConfigs(&configs[pivot], &configs[j]); + + _eglSortConfigs(configs, j, compare, priv_data); + _eglSortConfigs(configs + i, count - i, compare, priv_data); +} + + +static int +_eglFallbackCompare(const _EGLConfig *conf1, const _EGLConfig *conf2, + void *priv_data) +{ + const _EGLConfig *criteria = (const _EGLConfig *) priv_data; + return _eglCompareConfigs(conf1, conf2, criteria, EGL_TRUE); +} + + +/** + * Typical fallback routine for eglChooseConfig + */ +EGLBoolean +_eglChooseConfig(_EGLDriver *drv, _EGLDisplay *disp, const EGLint *attrib_list, + EGLConfig *configs, EGLint config_size, EGLint *num_configs) +{ + _EGLConfig **configList, criteria; + EGLint i, count; + + if (!num_configs) + return _eglError(EGL_BAD_PARAMETER, "eglChooseConfigs"); + + _eglInitConfig(&criteria, disp, 0); + if (!_eglParseConfigAttribList(&criteria, attrib_list)) + return _eglError(EGL_BAD_ATTRIBUTE, "eglChooseConfig"); + + /* allocate array of config pointers */ + configList = (_EGLConfig **) + malloc(disp->NumConfigs * sizeof(_EGLConfig *)); + if (!configList) + return _eglError(EGL_BAD_ALLOC, "eglChooseConfig(out of memory)"); + + /* perform selection of configs */ + count = 0; + for (i = 0; i < disp->NumConfigs; i++) { + if (_eglMatchConfig(disp->Configs[i], &criteria)) + configList[count++] = disp->Configs[i]; + } + + /* perform sorting of configs */ + if (configs && count) { + _eglSortConfigs((const _EGLConfig **) configList, count, + _eglFallbackCompare, (void *) &criteria); + count = MIN2(count, config_size); + for (i = 0; i < count; i++) + configs[i] = _eglGetConfigHandle(configList[i]); + } + + free(configList); + + *num_configs = count; + + return EGL_TRUE; +} + + +/** + * Fallback for eglGetConfigAttrib. + */ +EGLBoolean +_eglGetConfigAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, + EGLint attribute, EGLint *value) +{ + if (!_eglIsConfigAttribValid(conf, attribute)) + return _eglError(EGL_BAD_ATTRIBUTE, "eglGetConfigAttrib"); + if (!value) + return _eglError(EGL_BAD_PARAMETER, "eglGetConfigAttrib"); + + *value = GET_CONFIG_ATTRIB(conf, attribute); + return EGL_TRUE; +} + + +/** + * Fallback for eglGetConfigs. + */ +EGLBoolean +_eglGetConfigs(_EGLDriver *drv, _EGLDisplay *disp, EGLConfig *configs, + EGLint config_size, EGLint *num_config) +{ + if (!num_config) + return _eglError(EGL_BAD_PARAMETER, "eglGetConfigs"); + + if (configs) { + EGLint i; + *num_config = MIN2(disp->NumConfigs, config_size); + for (i = 0; i < *num_config; i++) + configs[i] = _eglGetConfigHandle(disp->Configs[i]); + } + else { + /* just return total number of supported configs */ + *num_config = disp->NumConfigs; + } + + return EGL_TRUE; +} diff --git a/src/egl/main/eglconfig.h b/src/egl/main/eglconfig.h new file mode 100644 index 0000000000..ca63c40d3d --- /dev/null +++ b/src/egl/main/eglconfig.h @@ -0,0 +1,172 @@ +#ifndef EGLCONFIG_INCLUDED +#define EGLCONFIG_INCLUDED + + +#include <assert.h> +#include "egltypedefs.h" + + +#define _EGL_CONFIG_FIRST_ATTRIB EGL_BUFFER_SIZE +#define _EGL_CONFIG_LAST_ATTRIB EGL_CONFORMANT +#define _EGL_CONFIG_NUM_CONTIGUOUS_ATTRIBS \ + (_EGL_CONFIG_LAST_ATTRIB - _EGL_CONFIG_FIRST_ATTRIB + 1) + +/* Attributes outside the contiguous block: + * + * EGL_Y_INVERTED_NOK + */ +#define _EGL_CONFIG_FIRST_EXTRA_ATTRIB _EGL_CONFIG_NUM_CONTIGUOUS_ATTRIBS +#define _EGL_CONFIG_NUM_EXTRA_ATTRIBS 1 + +#define _EGL_CONFIG_NUM_ATTRIBS \ + _EGL_CONFIG_NUM_CONTIGUOUS_ATTRIBS + _EGL_CONFIG_NUM_EXTRA_ATTRIBS + + +struct _egl_config +{ + _EGLDisplay *Display; + EGLint Storage[_EGL_CONFIG_NUM_ATTRIBS]; +}; + + +/** + * Macros for source level compatibility. + */ +#define SET_CONFIG_ATTRIB(CONF, ATTR, VAL) _eglSetConfigKey(CONF, ATTR, VAL) +#define GET_CONFIG_ATTRIB(CONF, ATTR) _eglGetConfigKey(CONF, ATTR) + + +/** + * Given a key, return an index into the storage of the config. + * Return -1 if the key is invalid. + */ +static INLINE EGLint +_eglIndexConfig(const _EGLConfig *conf, EGLint key) +{ + (void) conf; + if (key >= _EGL_CONFIG_FIRST_ATTRIB && + key < _EGL_CONFIG_FIRST_ATTRIB + _EGL_CONFIG_NUM_CONTIGUOUS_ATTRIBS) + return key - _EGL_CONFIG_FIRST_ATTRIB; + + switch (key) { + case EGL_Y_INVERTED_NOK: + return _EGL_CONFIG_FIRST_EXTRA_ATTRIB; + default: + return -1; + } +} + + +/** + * Reset all keys in the config to a given value. + */ +static INLINE void +_eglResetConfigKeys(_EGLConfig *conf, EGLint val) +{ + EGLint i; + for (i = 0; i < _EGL_CONFIG_NUM_ATTRIBS; i++) + conf->Storage[i] = val; +} + + +/** + * Update a config for a given key. + * + * Note that a valid key is not necessarily a valid attribute. There are gaps + * in the attribute enums. The separation is to catch application errors. + * Drivers should never set a key that is an invalid attribute. + */ +static INLINE void +_eglSetConfigKey(_EGLConfig *conf, EGLint key, EGLint val) +{ + EGLint idx = _eglIndexConfig(conf, key); + assert(idx >= 0); + conf->Storage[idx] = val; +} + + +/** + * Return the value for a given key. + */ +static INLINE EGLint +_eglGetConfigKey(const _EGLConfig *conf, EGLint key) +{ + EGLint idx = _eglIndexConfig(conf, key); + assert(idx >= 0); + return conf->Storage[idx]; +} + + +PUBLIC void +_eglInitConfig(_EGLConfig *config, _EGLDisplay *dpy, EGLint id); + + +PUBLIC EGLConfig +_eglAddConfig(_EGLDisplay *dpy, _EGLConfig *conf); + + +extern EGLBoolean +_eglCheckConfigHandle(EGLConfig config, _EGLDisplay *dpy); + + +/** + * Lookup a handle to find the linked config. + * Return NULL if the handle has no corresponding linked config. + */ +static INLINE _EGLConfig * +_eglLookupConfig(EGLConfig config, _EGLDisplay *dpy) +{ + _EGLConfig *conf = (_EGLConfig *) config; + if (!_eglCheckConfigHandle(config, dpy)) + conf = NULL; + return conf; +} + + +/** + * Return the handle of a linked config, or NULL. + */ +static INLINE EGLConfig +_eglGetConfigHandle(_EGLConfig *conf) +{ + return (EGLConfig) ((conf && conf->Display) ? conf : NULL); +} + + +PUBLIC EGLBoolean +_eglValidateConfig(const _EGLConfig *conf, EGLBoolean for_matching); + + +PUBLIC EGLBoolean +_eglMatchConfig(const _EGLConfig *conf, const _EGLConfig *criteria); + + +PUBLIC EGLBoolean +_eglParseConfigAttribList(_EGLConfig *conf, const EGLint *attrib_list); + + +PUBLIC EGLint +_eglCompareConfigs(const _EGLConfig *conf1, const _EGLConfig *conf2, + const _EGLConfig *criteria, EGLBoolean compare_id); + + +PUBLIC void +_eglSortConfigs(const _EGLConfig **configs, EGLint count, + EGLint (*compare)(const _EGLConfig *, const _EGLConfig *, + void *), + void *priv_data); + + +extern EGLBoolean +_eglChooseConfig(_EGLDriver *drv, _EGLDisplay *dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config); + + +extern EGLBoolean +_eglGetConfigAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, EGLint attribute, EGLint *value); + + +extern EGLBoolean +_eglGetConfigs(_EGLDriver *drv, _EGLDisplay *dpy, EGLConfig *configs, EGLint config_size, EGLint *num_config); + + +#endif /* EGLCONFIG_INCLUDED */ diff --git a/src/egl/main/eglconfigutil.c b/src/egl/main/eglconfigutil.c new file mode 100644 index 0000000000..e416b190f0 --- /dev/null +++ b/src/egl/main/eglconfigutil.c @@ -0,0 +1,128 @@ +/** + * Extra utility functions related to EGL configs. + */ + + +#include <stdlib.h> +#include <string.h> +#include "eglconfigutil.h" + + +/** + * Convert an _EGLConfig to a __GLcontextModes object. + * NOTE: This routine may be incomplete - we're only making sure that + * the fields needed by Mesa (for _mesa_create_context/framebuffer) are + * set correctly. + */ +void +_eglConfigToContextModesRec(const _EGLConfig *config, __GLcontextModes *mode) +{ + memset(mode, 0, sizeof(*mode)); + + mode->rgbMode = GL_TRUE; /* no color index */ + mode->colorIndexMode = GL_FALSE; + mode->doubleBufferMode = GL_TRUE; /* always DB for now */ + mode->stereoMode = GL_FALSE; + + mode->redBits = GET_CONFIG_ATTRIB(config, EGL_RED_SIZE); + mode->greenBits = GET_CONFIG_ATTRIB(config, EGL_GREEN_SIZE); + mode->blueBits = GET_CONFIG_ATTRIB(config, EGL_BLUE_SIZE); + mode->alphaBits = GET_CONFIG_ATTRIB(config, EGL_ALPHA_SIZE); + mode->rgbBits = GET_CONFIG_ATTRIB(config, EGL_BUFFER_SIZE); + + /* no rgba masks - fix? */ + + mode->depthBits = GET_CONFIG_ATTRIB(config, EGL_DEPTH_SIZE); + mode->haveDepthBuffer = mode->depthBits > 0; + + mode->stencilBits = GET_CONFIG_ATTRIB(config, EGL_STENCIL_SIZE); + mode->haveStencilBuffer = mode->stencilBits > 0; + + /* no accum */ + + mode->level = GET_CONFIG_ATTRIB(config, EGL_LEVEL); + mode->samples = GET_CONFIG_ATTRIB(config, EGL_SAMPLES); + mode->sampleBuffers = GET_CONFIG_ATTRIB(config, EGL_SAMPLE_BUFFERS); + + /* surface type - not really needed */ + mode->visualType = GLX_TRUE_COLOR; + mode->renderType = GLX_RGBA_BIT; +} + + +/** + * Convert a __GLcontextModes object to an _EGLConfig. + */ +EGLBoolean +_eglConfigFromContextModesRec(_EGLConfig *conf, const __GLcontextModes *m, + EGLint conformant, EGLint renderable_type) +{ + EGLint config_caveat, surface_type; + + /* must be RGBA */ + if (!m->rgbMode || !(m->renderType & GLX_RGBA_BIT)) + return EGL_FALSE; + + config_caveat = EGL_NONE; + if (m->visualRating == GLX_SLOW_CONFIG) + config_caveat = EGL_SLOW_CONFIG; + + if (m->visualRating == GLX_NON_CONFORMANT_CONFIG) + conformant &= ~EGL_OPENGL_BIT; + if (!(conformant & EGL_OPENGL_ES_BIT)) + config_caveat = EGL_NON_CONFORMANT_CONFIG; + + surface_type = 0; + if (m->drawableType & GLX_WINDOW_BIT) + surface_type |= EGL_WINDOW_BIT; + if (m->drawableType & GLX_PIXMAP_BIT) + surface_type |= EGL_PIXMAP_BIT; + if (m->drawableType & GLX_PBUFFER_BIT) + surface_type |= EGL_PBUFFER_BIT; + + SET_CONFIG_ATTRIB(conf, EGL_BUFFER_SIZE, m->rgbBits); + SET_CONFIG_ATTRIB(conf, EGL_RED_SIZE, m->redBits); + SET_CONFIG_ATTRIB(conf, EGL_GREEN_SIZE, m->greenBits); + SET_CONFIG_ATTRIB(conf, EGL_BLUE_SIZE, m->blueBits); + SET_CONFIG_ATTRIB(conf, EGL_ALPHA_SIZE, m->alphaBits); + + SET_CONFIG_ATTRIB(conf, EGL_BIND_TO_TEXTURE_RGB, m->bindToTextureRgb); + SET_CONFIG_ATTRIB(conf, EGL_BIND_TO_TEXTURE_RGBA, m->bindToTextureRgba); + SET_CONFIG_ATTRIB(conf, EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER); + SET_CONFIG_ATTRIB(conf, EGL_CONFIG_CAVEAT, config_caveat); + + SET_CONFIG_ATTRIB(conf, EGL_CONFORMANT, conformant); + SET_CONFIG_ATTRIB(conf, EGL_DEPTH_SIZE, m->depthBits); + SET_CONFIG_ATTRIB(conf, EGL_LEVEL, m->level); + SET_CONFIG_ATTRIB(conf, EGL_MAX_PBUFFER_WIDTH, m->maxPbufferWidth); + SET_CONFIG_ATTRIB(conf, EGL_MAX_PBUFFER_HEIGHT, m->maxPbufferHeight); + SET_CONFIG_ATTRIB(conf, EGL_MAX_PBUFFER_PIXELS, m->maxPbufferPixels); + + SET_CONFIG_ATTRIB(conf, EGL_NATIVE_RENDERABLE, m->xRenderable); + SET_CONFIG_ATTRIB(conf, EGL_NATIVE_VISUAL_ID, m->visualID); + + if (m->visualType != GLX_NONE) + SET_CONFIG_ATTRIB(conf, EGL_NATIVE_VISUAL_TYPE, m->visualType); + else + SET_CONFIG_ATTRIB(conf, EGL_NATIVE_VISUAL_TYPE, EGL_NONE); + + SET_CONFIG_ATTRIB(conf, EGL_RENDERABLE_TYPE, renderable_type); + SET_CONFIG_ATTRIB(conf, EGL_SAMPLE_BUFFERS, m->sampleBuffers); + SET_CONFIG_ATTRIB(conf, EGL_SAMPLES, m->samples); + SET_CONFIG_ATTRIB(conf, EGL_STENCIL_SIZE, m->stencilBits); + + SET_CONFIG_ATTRIB(conf, EGL_SURFACE_TYPE, surface_type); + + /* what to do with GLX_TRANSPARENT_INDEX? */ + if (m->transparentPixel == GLX_TRANSPARENT_RGB) { + SET_CONFIG_ATTRIB(conf, EGL_TRANSPARENT_TYPE, EGL_TRANSPARENT_RGB); + SET_CONFIG_ATTRIB(conf, EGL_TRANSPARENT_RED_VALUE, m->transparentRed); + SET_CONFIG_ATTRIB(conf, EGL_TRANSPARENT_GREEN_VALUE, m->transparentGreen); + SET_CONFIG_ATTRIB(conf, EGL_TRANSPARENT_BLUE_VALUE, m->transparentBlue); + } + else { + SET_CONFIG_ATTRIB(conf, EGL_TRANSPARENT_TYPE, EGL_NONE); + } + + return EGL_TRUE; +} diff --git a/src/egl/main/eglconfigutil.h b/src/egl/main/eglconfigutil.h new file mode 100644 index 0000000000..c6f4819960 --- /dev/null +++ b/src/egl/main/eglconfigutil.h @@ -0,0 +1,19 @@ +#ifndef EGLCONFIGUTIL_INCLUDED +#define EGLCONFIGUTIL_INCLUDED + + +#include "GL/gl.h" +#include "GL/internal/glcore.h" +#include "eglconfig.h" + + +PUBLIC void +_eglConfigToContextModesRec(const _EGLConfig *config, __GLcontextModes *mode); + + +PUBLIC EGLBoolean +_eglConfigFromContextModesRec(_EGLConfig *conf, const __GLcontextModes *m, + EGLint conformant, EGLint renderable_type); + + +#endif /* EGLCONFIGUTIL_INCLUDED */ diff --git a/src/egl/main/eglcontext.c b/src/egl/main/eglcontext.c new file mode 100644 index 0000000000..d5a1e79a99 --- /dev/null +++ b/src/egl/main/eglcontext.c @@ -0,0 +1,424 @@ +#include <assert.h> +#include <stdlib.h> +#include <string.h> +#include "eglconfig.h" +#include "eglcontext.h" +#include "egldisplay.h" +#include "eglcurrent.h" +#include "eglsurface.h" +#include "egllog.h" + + +/** + * Return the API bit (one of EGL_xxx_BIT) of the context. + */ +static EGLint +_eglGetContextAPIBit(_EGLContext *ctx) +{ + EGLint bit = 0; + + switch (ctx->ClientAPI) { + case EGL_OPENGL_ES_API: + switch (ctx->ClientVersion) { + case 1: + bit = EGL_OPENGL_ES_BIT; + break; + case 2: + bit = EGL_OPENGL_ES2_BIT; + break; + default: + break; + } + break; + case EGL_OPENVG_API: + bit = EGL_OPENVG_BIT; + break; + case EGL_OPENGL_API: + bit = EGL_OPENGL_BIT; + break; + default: + break; + } + + return bit; +} + + +/** + * Parse the list of context attributes and return the proper error code. + */ +static EGLint +_eglParseContextAttribList(_EGLContext *ctx, const EGLint *attrib_list) +{ + EGLenum api = ctx->ClientAPI; + EGLint i, err = EGL_SUCCESS; + + if (!attrib_list) + return EGL_SUCCESS; + + for (i = 0; attrib_list[i] != EGL_NONE; i++) { + EGLint attr = attrib_list[i++]; + EGLint val = attrib_list[i]; + + switch (attr) { + case EGL_CONTEXT_CLIENT_VERSION: + if (api != EGL_OPENGL_ES_API) { + err = EGL_BAD_ATTRIBUTE; + break; + } + if (val != 1 && val != 2) { + err = EGL_BAD_ATTRIBUTE; + break; + } + ctx->ClientVersion = val; + break; + default: + err = EGL_BAD_ATTRIBUTE; + break; + } + + if (err != EGL_SUCCESS) { + _eglLog(_EGL_DEBUG, "bad context attribute 0x%04x", attr); + break; + } + } + + if (err == EGL_SUCCESS) { + EGLint renderable_type, api_bit; + + renderable_type = GET_CONFIG_ATTRIB(ctx->Config, EGL_RENDERABLE_TYPE); + api_bit = _eglGetContextAPIBit(ctx); + if (!(renderable_type & api_bit)) + err = EGL_BAD_CONFIG; + } + + return err; +} + + +/** + * Initialize the given _EGLContext object to defaults and/or the values + * in the attrib_list. + */ +EGLBoolean +_eglInitContext(_EGLContext *ctx, _EGLDisplay *dpy, _EGLConfig *conf, + const EGLint *attrib_list) +{ + const EGLenum api = eglQueryAPI(); + EGLint err; + + if (api == EGL_NONE) { + _eglError(EGL_BAD_MATCH, "eglCreateContext(no client API)"); + return EGL_FALSE; + } + + memset(ctx, 0, sizeof(_EGLContext)); + ctx->Resource.Display = dpy; + ctx->ClientAPI = api; + ctx->Config = conf; + ctx->WindowRenderBuffer = EGL_NONE; + + ctx->ClientVersion = 1; /* the default, per EGL spec */ + + err = _eglParseContextAttribList(ctx, attrib_list); + if (err != EGL_SUCCESS) + return _eglError(err, "eglCreateContext"); + + return EGL_TRUE; +} + + +/** + * Just a placeholder/demo function. Real driver will never use this! + */ +_EGLContext * +_eglCreateContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, + _EGLContext *share_list, const EGLint *attrib_list) +{ + return NULL; +} + + +/** + * Default fallback routine - drivers should usually override this. + */ +EGLBoolean +_eglDestroyContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx) +{ + if (!_eglIsContextBound(ctx)) + free(ctx); + return EGL_TRUE; +} + + +#ifdef EGL_VERSION_1_2 +static EGLint +_eglQueryContextRenderBuffer(_EGLContext *ctx) +{ + _EGLSurface *surf = ctx->DrawSurface; + EGLint rb; + + if (!surf) + return EGL_NONE; + if (surf->Type == EGL_WINDOW_BIT && ctx->WindowRenderBuffer != EGL_NONE) + rb = ctx->WindowRenderBuffer; + else + rb = surf->RenderBuffer; + return rb; +} +#endif /* EGL_VERSION_1_2 */ + + +EGLBoolean +_eglQueryContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *c, + EGLint attribute, EGLint *value) +{ + (void) drv; + (void) dpy; + + if (!value) + return _eglError(EGL_BAD_PARAMETER, "eglQueryContext"); + + switch (attribute) { + case EGL_CONFIG_ID: + *value = GET_CONFIG_ATTRIB(c->Config, EGL_CONFIG_ID); + break; + case EGL_CONTEXT_CLIENT_VERSION: + *value = c->ClientVersion; + break; +#ifdef EGL_VERSION_1_2 + case EGL_CONTEXT_CLIENT_TYPE: + *value = c->ClientAPI; + break; + case EGL_RENDER_BUFFER: + *value = _eglQueryContextRenderBuffer(c); + break; +#endif /* EGL_VERSION_1_2 */ + default: + return _eglError(EGL_BAD_ATTRIBUTE, "eglQueryContext"); + } + + return EGL_TRUE; +} + + +/** + * Bind the context to the surfaces. Return the surfaces that are "orphaned". + * That is, when the context is not NULL, return the surfaces it previously + * bound to; when the context is NULL, the same surfaces are returned. + */ +static void +_eglBindContextToSurfaces(_EGLContext *newCtx, + _EGLSurface **draw, _EGLSurface **read) +{ + _EGLSurface *newDraw = *draw, *newRead = *read; + _EGLContext *oldCtx; + + /* + * The goal is to bind a newCtx to newDraw. Since newDraw may already have + * a binding context (oldCtx), and newCtx may already be bound to another + * surface (oldDraw), the old bindings are broken first and the new one is + * created. + */ + oldCtx = newDraw->CurrentContext; + if (newCtx != oldCtx) { + if (oldCtx) { + assert(oldCtx->DrawSurface == newDraw); + oldCtx->DrawSurface = NULL; + } + + if (newCtx) { + _EGLSurface *oldDraw = newCtx->DrawSurface; + if (oldDraw) + oldDraw->CurrentContext = NULL; + + newCtx->DrawSurface = newDraw; + *draw = oldDraw; + } + + newDraw->CurrentContext = newCtx; + } + + /* likewise */ + if (newRead != newDraw) + oldCtx = newRead->CurrentContext; + if (newCtx != oldCtx) { + if (oldCtx) { + assert(oldCtx->ReadSurface == newRead); + oldCtx->ReadSurface = NULL; + } + + if (newCtx) { + _EGLSurface *oldRead = newCtx->ReadSurface; + if (oldRead) + oldRead->CurrentContext = NULL; + + newCtx->ReadSurface = newRead; + *read = oldRead; + } + + newRead->CurrentContext = newCtx; + } +} + + +/** + * Bind the context to the thread and return the previous context. + * + * Note that the context may be NULL. + */ +static _EGLContext * +_eglBindContextToThread(_EGLContext *ctx, _EGLThreadInfo *t) +{ + EGLint apiIndex; + _EGLContext *oldCtx; + + apiIndex = (ctx) ? + _eglConvertApiToIndex(ctx->ClientAPI) : t->CurrentAPIIndex; + + oldCtx = t->CurrentContexts[apiIndex]; + if (ctx != oldCtx) { + if (oldCtx) + oldCtx->Binding = NULL; + if (ctx) + ctx->Binding = t; + + t->CurrentContexts[apiIndex] = ctx; + } + + return oldCtx; +} + + +/** + * Return true if the given context and surfaces can be made current. + */ +static EGLBoolean +_eglCheckMakeCurrent(_EGLContext *ctx, _EGLSurface *draw, _EGLSurface *read) +{ + _EGLThreadInfo *t = _eglGetCurrentThread(); + EGLint conflict_api; + + if (_eglIsCurrentThreadDummy()) + return _eglError(EGL_BAD_ALLOC, "eglMakeCurrent"); + + /* this is easy */ + if (!ctx) { + if (draw || read) + return _eglError(EGL_BAD_MATCH, "eglMakeCurrent"); + return EGL_TRUE; + } + + /* ctx/draw/read must be all given */ + if (draw == NULL || read == NULL) + return _eglError(EGL_BAD_MATCH, "eglMakeCurrent"); + + /* context stealing from another thread is not allowed */ + if (ctx->Binding && ctx->Binding != t) + return _eglError(EGL_BAD_ACCESS, "eglMakeCurrent"); + + /* + * The spec says + * + * "If ctx is current to some other thread, or if either draw or read are + * bound to contexts in another thread, an EGL_BAD_ACCESS error is + * generated." + * + * But it also says + * + * "at most one context may be bound to a particular surface at a given + * time" + * + * The latter is more restrictive so we can check only the latter case. + */ + if ((draw->CurrentContext && draw->CurrentContext != ctx) || + (read->CurrentContext && read->CurrentContext != ctx)) + return _eglError(EGL_BAD_ACCESS, "eglMakeCurrent"); + + /* simply require the configs to be equal */ + if (draw->Config != ctx->Config || read->Config != ctx->Config) + return _eglError(EGL_BAD_MATCH, "eglMakeCurrent"); + + switch (ctx->ClientAPI) { +#ifdef EGL_VERSION_1_4 + /* OpenGL and OpenGL ES are conflicting */ + case EGL_OPENGL_ES_API: + conflict_api = EGL_OPENGL_API; + break; + case EGL_OPENGL_API: + conflict_api = EGL_OPENGL_ES_API; + break; +#endif + default: + conflict_api = -1; + break; + } + + if (conflict_api >= 0 && _eglGetAPIContext(conflict_api)) + return _eglError(EGL_BAD_ACCESS, "eglMakeCurrent"); + + return EGL_TRUE; +} + + +/** + * Bind the context to the current thread and given surfaces. Return the + * previously bound context and the surfaces it bound to. Each argument is + * both input and output. + */ +EGLBoolean +_eglBindContext(_EGLContext **ctx, _EGLSurface **draw, _EGLSurface **read) +{ + _EGLThreadInfo *t = _eglGetCurrentThread(); + _EGLContext *newCtx = *ctx, *oldCtx; + + if (!_eglCheckMakeCurrent(newCtx, *draw, *read)) + return EGL_FALSE; + + /* bind the new context */ + oldCtx = _eglBindContextToThread(newCtx, t); + + if (newCtx) + _eglBindContextToSurfaces(newCtx, draw, read); + + /* unbind the old context from its binding surfaces */ + if (oldCtx && oldCtx != newCtx) { + assert(!*draw && !*read); + + *draw = oldCtx->DrawSurface; + *read = oldCtx->ReadSurface; + assert(*draw && *read); + + _eglBindContextToSurfaces(NULL, draw, read); + } + + *ctx = oldCtx; + /* draw and read have been updated in _eglBindContextToSurfaces */ + + return EGL_TRUE; +} + + +/** + * Just a placeholder/demo function. Drivers should override this. + */ +EGLBoolean +_eglMakeCurrent(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *draw, + _EGLSurface *read, _EGLContext *ctx) +{ + return EGL_FALSE; +} + + +/** + * This is defined by the EGL_MESA_copy_context extension. + */ +EGLBoolean +_eglCopyContextMESA(_EGLDriver *drv, EGLDisplay dpy, EGLContext source, + EGLContext dest, EGLint mask) +{ + /* This function will always have to be overridden/implemented in the + * device driver. If the driver is based on Mesa, use _mesa_copy_context(). + */ + return EGL_FALSE; +} diff --git a/src/egl/main/eglcontext.h b/src/egl/main/eglcontext.h new file mode 100644 index 0000000000..cfe92dd9f5 --- /dev/null +++ b/src/egl/main/eglcontext.h @@ -0,0 +1,137 @@ +#ifndef EGLCONTEXT_INCLUDED +#define EGLCONTEXT_INCLUDED + + +#include "egltypedefs.h" +#include "egldisplay.h" + + +/** + * "Base" class for device driver contexts. + */ +struct _egl_context +{ + /* A context is a display resource */ + _EGLResource Resource; + + /* The bound status of the context */ + _EGLThreadInfo *Binding; + _EGLSurface *DrawSurface; + _EGLSurface *ReadSurface; + + _EGLConfig *Config; + + EGLint ClientAPI; /**< EGL_OPENGL_ES_API, EGL_OPENGL_API, EGL_OPENVG_API */ + EGLint ClientVersion; /**< 1 = OpenGLES 1.x, 2 = OpenGLES 2.x */ + + /* The real render buffer when a window surface is bound */ + EGLint WindowRenderBuffer; +}; + + +PUBLIC EGLBoolean +_eglInitContext(_EGLContext *ctx, _EGLDisplay *dpy, + _EGLConfig *config, const EGLint *attrib_list); + + +extern _EGLContext * +_eglCreateContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, _EGLContext *share_list, const EGLint *attrib_list); + + +extern EGLBoolean +_eglDestroyContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx); + + +extern EGLBoolean +_eglQueryContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx, EGLint attribute, EGLint *value); + + +PUBLIC EGLBoolean +_eglBindContext(_EGLContext **ctx, _EGLSurface **draw, _EGLSurface **read); + + +extern EGLBoolean +_eglMakeCurrent(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *draw, _EGLSurface *read, _EGLContext *ctx); + + +extern EGLBoolean +_eglCopyContextMESA(_EGLDriver *drv, EGLDisplay dpy, EGLContext source, EGLContext dest, EGLint mask); + + +/** + * Return true if the context is bound to a thread. + * + * The binding is considered a reference to the context. Drivers should not + * destroy a context when it is bound. + */ +static INLINE EGLBoolean +_eglIsContextBound(_EGLContext *ctx) +{ + return (ctx->Binding != NULL); +} + + +/** + * Link a context to a display and return the handle of the link. + * The handle can be passed to client directly. + */ +static INLINE EGLContext +_eglLinkContext(_EGLContext *ctx, _EGLDisplay *dpy) +{ + _eglLinkResource(&ctx->Resource, _EGL_RESOURCE_CONTEXT, dpy); + return (EGLContext) ctx; +} + + +/** + * Unlink a linked context from its display. + * Accessing an unlinked context should generate EGL_BAD_CONTEXT error. + */ +static INLINE void +_eglUnlinkContext(_EGLContext *ctx) +{ + _eglUnlinkResource(&ctx->Resource, _EGL_RESOURCE_CONTEXT); +} + + +/** + * Lookup a handle to find the linked context. + * Return NULL if the handle has no corresponding linked context. + */ +static INLINE _EGLContext * +_eglLookupContext(EGLContext context, _EGLDisplay *dpy) +{ + _EGLContext *ctx = (_EGLContext *) context; + if (!dpy || !_eglCheckResource((void *) ctx, _EGL_RESOURCE_CONTEXT, dpy)) + ctx = NULL; + return ctx; +} + + +/** + * Return the handle of a linked context, or EGL_NO_CONTEXT. + */ +static INLINE EGLContext +_eglGetContextHandle(_EGLContext *ctx) +{ + _EGLResource *res = (_EGLResource *) ctx; + return (res && _eglIsResourceLinked(res)) ? + (EGLContext) ctx : EGL_NO_CONTEXT; +} + + +/** + * Return true if the context is linked to a display. + * + * The link is considered a reference to the context (the display is owning the + * context). Drivers should not destroy a context when it is linked. + */ +static INLINE EGLBoolean +_eglIsContextLinked(_EGLContext *ctx) +{ + _EGLResource *res = (_EGLResource *) ctx; + return (res && _eglIsResourceLinked(res)); +} + + +#endif /* EGLCONTEXT_INCLUDED */ diff --git a/src/egl/main/eglcurrent.c b/src/egl/main/eglcurrent.c new file mode 100644 index 0000000000..c697bf796d --- /dev/null +++ b/src/egl/main/eglcurrent.c @@ -0,0 +1,316 @@ +#include <stdlib.h> +#include <string.h> +#include "eglglobals.h" +#include "egllog.h" +#include "eglmutex.h" +#include "eglcurrent.h" + + +/* This should be kept in sync with _eglInitThreadInfo() */ +#define _EGL_THREAD_INFO_INITIALIZER \ + { EGL_SUCCESS, { NULL }, 0 } + +/* a fallback thread info to guarantee that every thread always has one */ +static _EGLThreadInfo dummy_thread = _EGL_THREAD_INFO_INITIALIZER; + + +#ifdef GLX_USE_TLS +static __thread const _EGLThreadInfo *_egl_TSD + __attribute__ ((tls_model("initial-exec"))); + +static INLINE void _eglSetTSD(const _EGLThreadInfo *t) +{ + _egl_TSD = t; +} + +static INLINE _EGLThreadInfo *_eglGetTSD(void) +{ + return (_EGLThreadInfo *) _egl_TSD; +} + +static INLINE void _eglFiniTSD(void) +{ +} + +static INLINE EGLBoolean _eglInitTSD(void (*dtor)(_EGLThreadInfo *)) +{ + /* TODO destroy TSD */ + (void) dtor; + (void) _eglFiniTSD; + return EGL_TRUE; +} + +#elif PTHREADS +#include <pthread.h> + +static _EGL_DECLARE_MUTEX(_egl_TSDMutex); +static EGLBoolean _egl_TSDInitialized; +static pthread_key_t _egl_TSD; +static void (*_egl_FreeTSD)(_EGLThreadInfo *); + +static INLINE void _eglSetTSD(const _EGLThreadInfo *t) +{ + pthread_setspecific(_egl_TSD, (const void *) t); +} + +static INLINE _EGLThreadInfo *_eglGetTSD(void) +{ + return (_EGLThreadInfo *) pthread_getspecific(_egl_TSD); +} + +static INLINE void _eglFiniTSD(void) +{ + _eglLockMutex(&_egl_TSDMutex); + if (_egl_TSDInitialized) { + _EGLThreadInfo *t = _eglGetTSD(); + + _egl_TSDInitialized = EGL_FALSE; + if (t && _egl_FreeTSD) + _egl_FreeTSD((void *) t); + pthread_key_delete(_egl_TSD); + } + _eglUnlockMutex(&_egl_TSDMutex); +} + +static INLINE EGLBoolean _eglInitTSD(void (*dtor)(_EGLThreadInfo *)) +{ + if (!_egl_TSDInitialized) { + _eglLockMutex(&_egl_TSDMutex); + + /* check again after acquiring lock */ + if (!_egl_TSDInitialized) { + if (pthread_key_create(&_egl_TSD, (void (*)(void *)) dtor) != 0) { + _eglUnlockMutex(&_egl_TSDMutex); + return EGL_FALSE; + } + _egl_FreeTSD = dtor; + _eglAddAtExitCall(_eglFiniTSD); + _egl_TSDInitialized = EGL_TRUE; + } + + _eglUnlockMutex(&_egl_TSDMutex); + } + + return EGL_TRUE; +} + +#else /* PTHREADS */ +static const _EGLThreadInfo *_egl_TSD; +static void (*_egl_FreeTSD)(_EGLThreadInfo *); + +static INLINE void _eglSetTSD(const _EGLThreadInfo *t) +{ + _egl_TSD = t; +} + +static INLINE _EGLThreadInfo *_eglGetTSD(void) +{ + return (_EGLThreadInfo *) _egl_TSD; +} + +static INLINE void _eglFiniTSD(void) +{ + if (_egl_FreeTSD && _egl_TSD) + _egl_FreeTSD((_EGLThreadInfo *) _egl_TSD); +} + +static INLINE EGLBoolean _eglInitTSD(void (*dtor)(_EGLThreadInfo *)) +{ + if (!_egl_FreeTSD && dtor) { + _egl_FreeTSD = dtor; + _eglAddAtExitCall(_eglFiniTSD); + } + return EGL_TRUE; +} + +#endif /* !PTHREADS */ + + +static void +_eglInitThreadInfo(_EGLThreadInfo *t) +{ + memset(t, 0, sizeof(*t)); + t->LastError = EGL_SUCCESS; + /* default, per EGL spec */ + t->CurrentAPIIndex = _eglConvertApiToIndex(EGL_OPENGL_ES_API); +} + + +/** + * Allocate and init a new _EGLThreadInfo object. + */ +static _EGLThreadInfo * +_eglCreateThreadInfo(void) +{ + _EGLThreadInfo *t = (_EGLThreadInfo *) calloc(1, sizeof(_EGLThreadInfo)); + if (t) + _eglInitThreadInfo(t); + else + t = &dummy_thread; + return t; +} + + +/** + * Delete/free a _EGLThreadInfo object. + */ +static void +_eglDestroyThreadInfo(_EGLThreadInfo *t) +{ + if (t != &dummy_thread) + free(t); +} + + +/** + * Make sure TSD is initialized and return current value. + */ +static INLINE _EGLThreadInfo * +_eglCheckedGetTSD(void) +{ + if (_eglInitTSD(&_eglDestroyThreadInfo) != EGL_TRUE) { + _eglLog(_EGL_FATAL, "failed to initialize \"current\" system"); + return NULL; + } + + return _eglGetTSD(); +} + + +/** + * Return the calling thread's thread info. + * If the calling thread nevers calls this function before, or if its thread + * info was destroyed, a new one is created. This function never returns NULL. + * In the case allocation fails, a dummy one is returned. See also + * _eglIsCurrentThreadDummy. + */ +_EGLThreadInfo * +_eglGetCurrentThread(void) +{ + _EGLThreadInfo *t = _eglCheckedGetTSD(); + if (!t) { + t = _eglCreateThreadInfo(); + _eglSetTSD(t); + } + + return t; +} + + +/** + * Destroy the calling thread's thread info. + */ +void +_eglDestroyCurrentThread(void) +{ + _EGLThreadInfo *t = _eglCheckedGetTSD(); + if (t) { + _eglDestroyThreadInfo(t); + _eglSetTSD(NULL); + } +} + + +/** + * Return true if the calling thread's thread info is dummy. + * A dummy thread info is shared by all threads and should not be modified. + * Functions like eglBindAPI or eglMakeCurrent should check for dummy-ness + * before updating the thread info. + */ +EGLBoolean +_eglIsCurrentThreadDummy(void) +{ + _EGLThreadInfo *t = _eglCheckedGetTSD(); + return (!t || t == &dummy_thread); +} + + +/** + * Return the currently bound context of the given API, or NULL. + */ +PUBLIC _EGLContext * +_eglGetAPIContext(EGLenum api) +{ + _EGLThreadInfo *t = _eglGetCurrentThread(); + return t->CurrentContexts[_eglConvertApiToIndex(api)]; +} + + +/** + * Return the currently bound context of the current API, or NULL. + */ +_EGLContext * +_eglGetCurrentContext(void) +{ + _EGLThreadInfo *t = _eglGetCurrentThread(); + return t->CurrentContexts[t->CurrentAPIIndex]; +} + + +/** + * Record EGL error code and return EGL_FALSE. + */ +EGLBoolean +_eglError(EGLint errCode, const char *msg) +{ + _EGLThreadInfo *t = _eglGetCurrentThread(); + + if (t == &dummy_thread) + return EGL_FALSE; + + t->LastError = errCode; + + if (errCode != EGL_SUCCESS) { + const char *s; + + switch (errCode) { + case EGL_BAD_ACCESS: + s = "EGL_BAD_ACCESS"; + break; + case EGL_BAD_ALLOC: + s = "EGL_BAD_ALLOC"; + break; + case EGL_BAD_ATTRIBUTE: + s = "EGL_BAD_ATTRIBUTE"; + break; + case EGL_BAD_CONFIG: + s = "EGL_BAD_CONFIG"; + break; + case EGL_BAD_CONTEXT: + s = "EGL_BAD_CONTEXT"; + break; + case EGL_BAD_CURRENT_SURFACE: + s = "EGL_BAD_CURRENT_SURFACE"; + break; + case EGL_BAD_DISPLAY: + s = "EGL_BAD_DISPLAY"; + break; + case EGL_BAD_MATCH: + s = "EGL_BAD_MATCH"; + break; + case EGL_BAD_NATIVE_PIXMAP: + s = "EGL_BAD_NATIVE_PIXMAP"; + break; + case EGL_BAD_NATIVE_WINDOW: + s = "EGL_BAD_NATIVE_WINDOW"; + break; + case EGL_BAD_PARAMETER: + s = "EGL_BAD_PARAMETER"; + break; + case EGL_BAD_SURFACE: + s = "EGL_BAD_SURFACE"; + break; + case EGL_BAD_SCREEN_MESA: + s = "EGL_BAD_SCREEN_MESA"; + break; + case EGL_BAD_MODE_MESA: + s = "EGL_BAD_MODE_MESA"; + break; + default: + s = "other"; + } + _eglLog(_EGL_DEBUG, "EGL user error 0x%x (%s) in %s\n", errCode, s, msg); + } + + return EGL_FALSE; +} diff --git a/src/egl/main/eglcurrent.h b/src/egl/main/eglcurrent.h new file mode 100644 index 0000000000..e5c94ce60a --- /dev/null +++ b/src/egl/main/eglcurrent.h @@ -0,0 +1,88 @@ +#ifndef EGLCURRENT_INCLUDED +#define EGLCURRENT_INCLUDED + + +#include "egltypedefs.h" + + +#define _EGL_API_ALL_BITS \ + (EGL_OPENGL_ES_BIT | \ + EGL_OPENVG_BIT | \ + EGL_OPENGL_ES2_BIT | \ + EGL_OPENGL_BIT) + + +#define _EGL_API_FIRST_API EGL_OPENGL_ES_API +#define _EGL_API_LAST_API EGL_OPENGL_API +#define _EGL_API_NUM_APIS (_EGL_API_LAST_API - _EGL_API_FIRST_API + 1) + + +/** + * Per-thread info + */ +struct _egl_thread_info +{ + EGLint LastError; + _EGLContext *CurrentContexts[_EGL_API_NUM_APIS]; + /* use index for fast access to current context */ + EGLint CurrentAPIIndex; +}; + + +/** + * Return true if a client API enum is recognized. + */ +static INLINE EGLBoolean +_eglIsApiValid(EGLenum api) +{ + return (api >= _EGL_API_FIRST_API && api <= _EGL_API_LAST_API); +} + + +/** + * Convert a client API enum to an index, for use by thread info. + * The client API enum is assumed to be valid. + */ +static INLINE EGLint +_eglConvertApiToIndex(EGLenum api) +{ + return api - _EGL_API_FIRST_API; +} + + +/** + * Convert an index, used by thread info, to a client API enum. + * The index is assumed to be valid. + */ +static INLINE EGLenum +_eglConvertApiFromIndex(EGLint idx) +{ + return _EGL_API_FIRST_API + idx; +} + + +PUBLIC _EGLThreadInfo * +_eglGetCurrentThread(void); + + +extern void +_eglDestroyCurrentThread(void); + + +extern EGLBoolean +_eglIsCurrentThreadDummy(void); + + +PUBLIC _EGLContext * +_eglGetAPIContext(EGLenum api); + + +PUBLIC _EGLContext * +_eglGetCurrentContext(void); + + +PUBLIC EGLBoolean +_eglError(EGLint errCode, const char *msg); + + +#endif /* EGLCURRENT_INCLUDED */ diff --git a/src/egl/main/egldefines.h b/src/egl/main/egldefines.h new file mode 100644 index 0000000000..4ecd4c1420 --- /dev/null +++ b/src/egl/main/egldefines.h @@ -0,0 +1,46 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + + +/** + * Internal EGL defines + */ + + +#ifndef EGLDEFINES_INCLUDED +#define EGLDEFINES_INCLUDED + + +#define _EGL_MAX_EXTENSIONS_LEN 1000 + +#define _EGL_VENDOR_STRING "Mesa Project" + +#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) + + +#endif /* EGLDEFINES_INCLUDED */ diff --git a/src/egl/main/egldisplay.c b/src/egl/main/egldisplay.c new file mode 100644 index 0000000000..5dc5fd9719 --- /dev/null +++ b/src/egl/main/egldisplay.c @@ -0,0 +1,221 @@ +/** + * Functions related to EGLDisplay. + */ + +#include <assert.h> +#include <stdlib.h> +#include <string.h> +#include "eglcontext.h" +#include "eglsurface.h" +#include "egldisplay.h" +#include "egldriver.h" +#include "eglglobals.h" +#include "eglmutex.h" +#include "egllog.h" + + +/** + * Finish display management. + */ +void +_eglFiniDisplay(void) +{ + _EGLDisplay *dpyList, *dpy; + + /* atexit function is called with global mutex locked */ + dpyList = _eglGlobal.DisplayList; + while (dpyList) { + EGLint i; + + /* pop list head */ + dpy = dpyList; + dpyList = dpyList->Next; + + for (i = 0; i < _EGL_NUM_RESOURCES; i++) { + if (dpy->ResourceLists[i]) { + _eglLog(_EGL_DEBUG, "Display %p is destroyed with resources", dpy); + break; + } + } + + free(dpy); + } + _eglGlobal.DisplayList = NULL; +} + + +/** + * Find the display corresponding to the specified native display, or create a + * new one. + */ +_EGLDisplay * +_eglFindDisplay(EGLNativeDisplayType nativeDisplay) +{ + _EGLDisplay *dpy; + + _eglLockMutex(_eglGlobal.Mutex); + + /* search the display list first */ + dpy = _eglGlobal.DisplayList; + while (dpy) { + if (dpy->NativeDisplay == nativeDisplay) + break; + dpy = dpy->Next; + } + + /* create a new display */ + if (!dpy) { + dpy = (_EGLDisplay *) calloc(1, sizeof(_EGLDisplay)); + if (dpy) { + _eglInitMutex(&dpy->Mutex); + dpy->NativeDisplay = nativeDisplay; + + /* add to the display list */ + dpy->Next = _eglGlobal.DisplayList; + _eglGlobal.DisplayList = dpy; + } + } + + _eglUnlockMutex(_eglGlobal.Mutex); + + return dpy; +} + + +/** + * Destroy the contexts and surfaces that are linked to the display. + */ +void +_eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *display) +{ + _EGLResource *list; + + list = display->ResourceLists[_EGL_RESOURCE_CONTEXT]; + while (list) { + _EGLContext *ctx = (_EGLContext *) list; + list = list->Next; + + _eglUnlinkContext(ctx); + drv->API.DestroyContext(drv, display, ctx); + } + assert(!display->ResourceLists[_EGL_RESOURCE_CONTEXT]); + + list = display->ResourceLists[_EGL_RESOURCE_SURFACE]; + while (list) { + _EGLSurface *surf = (_EGLSurface *) list; + list = list->Next; + + _eglUnlinkSurface(surf); + drv->API.DestroySurface(drv, display, surf); + } + assert(!display->ResourceLists[_EGL_RESOURCE_SURFACE]); +} + + +/** + * Free all the data hanging of an _EGLDisplay object, but not + * the object itself. + */ +void +_eglCleanupDisplay(_EGLDisplay *disp) +{ + EGLint i; + + if (disp->Configs) { + for (i = 0; i < disp->NumConfigs; i++) + free(disp->Configs[i]); + free(disp->Configs); + disp->Configs = NULL; + disp->NumConfigs = 0; + disp->MaxConfigs = 0; + } + + /* XXX incomplete */ +} + + +/** + * Return EGL_TRUE if the given handle is a valid handle to a display. + */ +EGLBoolean +_eglCheckDisplayHandle(EGLDisplay dpy) +{ + _EGLDisplay *cur; + + _eglLockMutex(_eglGlobal.Mutex); + cur = _eglGlobal.DisplayList; + while (cur) { + if (cur == (_EGLDisplay *) dpy) + break; + cur = cur->Next; + } + _eglUnlockMutex(_eglGlobal.Mutex); + return (cur != NULL); +} + + +/** + * Return EGL_TRUE if the given resource is valid. That is, the display does + * own the resource. + */ +EGLBoolean +_eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *dpy) +{ + _EGLResource *list = dpy->ResourceLists[type]; + + if (!res) + return EGL_FALSE; + + while (list) { + if (res == (void *) list) { + assert(list->Display == dpy); + break; + } + list = list->Next; + } + + return (list != NULL); +} + + +/** + * Link a resource to a display. + */ +void +_eglLinkResource(_EGLResource *res, _EGLResourceType type, _EGLDisplay *dpy) +{ + assert(!res->Display || res->Display == dpy); + + res->Display = dpy; + res->IsLinked = EGL_TRUE; + res->Next = dpy->ResourceLists[type]; + dpy->ResourceLists[type] = res; +} + + +/** + * Unlink a linked resource from its display. + */ +void +_eglUnlinkResource(_EGLResource *res, _EGLResourceType type) +{ + _EGLResource *prev; + + prev = res->Display->ResourceLists[type]; + if (prev != res) { + while (prev) { + if (prev->Next == res) + break; + prev = prev->Next; + } + assert(prev); + prev->Next = res->Next; + } + else { + res->Display->ResourceLists[type] = res->Next; + } + + res->Next = NULL; + /* do not reset res->Display */ + res->IsLinked = EGL_FALSE; +} diff --git a/src/egl/main/egldisplay.h b/src/egl/main/egldisplay.h new file mode 100644 index 0000000000..42e305f91a --- /dev/null +++ b/src/egl/main/egldisplay.h @@ -0,0 +1,156 @@ +#ifndef EGLDISPLAY_INCLUDED +#define EGLDISPLAY_INCLUDED + + +#include "egltypedefs.h" +#include "egldefines.h" +#include "eglmutex.h" + + +enum _egl_resource_type { + _EGL_RESOURCE_CONTEXT, + _EGL_RESOURCE_SURFACE, + _EGL_RESOURCE_IMAGE, + + _EGL_NUM_RESOURCES +}; +/* this cannot and need not go into egltypedefs.h */ +typedef enum _egl_resource_type _EGLResourceType; + + +/** + * A resource of a display. + */ +struct _egl_resource +{ + /* which display the resource belongs to */ + _EGLDisplay *Display; + EGLBoolean IsLinked; + + /* used to link resources of the same type */ + _EGLResource *Next; +}; + + +/** + * Optional EGL extensions info. + */ +struct _egl_extensions +{ + EGLBoolean MESA_screen_surface; + EGLBoolean MESA_copy_context; + EGLBoolean KHR_image_base; + EGLBoolean KHR_image_pixmap; + EGLBoolean KHR_vg_parent_image; + EGLBoolean KHR_gl_texture_2D_image; + EGLBoolean KHR_gl_texture_cubemap_image; + EGLBoolean KHR_gl_texture_3D_image; + EGLBoolean KHR_gl_renderbuffer_image; + EGLBoolean NOK_swap_region; + EGLBoolean NOK_texture_from_pixmap; + + char String[_EGL_MAX_EXTENSIONS_LEN]; +}; + + +struct _egl_display +{ + /* used to link displays */ + _EGLDisplay *Next; + + _EGLMutex Mutex; + + EGLNativeDisplayType NativeDisplay; + + EGLBoolean Initialized; /**< True if the display is initialized */ + _EGLDriver *Driver; + void *DriverData; /* private to driver */ + + int APImajor, APIminor; /**< as returned by eglInitialize() */ + char Version[1000]; /**< initialized from APImajor/minor, DriverName */ + + /** Bitmask of supported APIs (EGL_xx_BIT) set by the driver during init */ + EGLint ClientAPIsMask; + char ClientAPIs[1000]; /**< updated by eglQueryString */ + + _EGLExtensions Extensions; + + EGLint NumScreens; + _EGLScreen **Screens; /* array [NumScreens] */ + + EGLint MaxConfigs; + EGLint NumConfigs; + _EGLConfig **Configs; /* array [NumConfigs] of ptr to _EGLConfig */ + + /* lists of resources */ + _EGLResource *ResourceLists[_EGL_NUM_RESOURCES]; +}; + + +extern void +_eglFiniDisplay(void); + + +extern _EGLDisplay * +_eglFindDisplay(EGLNativeDisplayType displayName); + + +PUBLIC void +_eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *dpy); + + +PUBLIC void +_eglCleanupDisplay(_EGLDisplay *disp); + + +extern EGLBoolean +_eglCheckDisplayHandle(EGLDisplay dpy); + + +PUBLIC EGLBoolean +_eglCheckResource(void *res, _EGLResourceType type, _EGLDisplay *dpy); + + +/** + * Lookup a handle to find the linked display. + * Return NULL if the handle has no corresponding linked display. + */ +static INLINE _EGLDisplay * +_eglLookupDisplay(EGLDisplay display) +{ + _EGLDisplay *dpy = (_EGLDisplay *) display; + if (!_eglCheckDisplayHandle(display)) + dpy = NULL; + return dpy; +} + + +/** + * Return the handle of a linked display, or EGL_NO_DISPLAY. + */ +static INLINE EGLDisplay +_eglGetDisplayHandle(_EGLDisplay *dpy) +{ + return (EGLDisplay) ((dpy) ? dpy : EGL_NO_DISPLAY); +} + + +extern void +_eglLinkResource(_EGLResource *res, _EGLResourceType type, _EGLDisplay *dpy); + + +extern void +_eglUnlinkResource(_EGLResource *res, _EGLResourceType type); + + +/** + * Return true if the resource is linked. + */ +static INLINE EGLBoolean +_eglIsResourceLinked(_EGLResource *res) +{ + return res->IsLinked; +} + + +#endif /* EGLDISPLAY_INCLUDED */ diff --git a/src/egl/main/egldriver.c b/src/egl/main/egldriver.c new file mode 100644 index 0000000000..f56214472e --- /dev/null +++ b/src/egl/main/egldriver.c @@ -0,0 +1,699 @@ +/** + * Functions for choosing and opening/loading device drivers. + */ + + +#include <assert.h> +#include <string.h> +#include <stdio.h> +#include <stdlib.h> + +#include "eglstring.h" +#include "eglconfig.h" +#include "eglcontext.h" +#include "egldefines.h" +#include "egldisplay.h" +#include "egldriver.h" +#include "eglglobals.h" +#include "egllog.h" +#include "eglmisc.h" +#include "eglmode.h" +#include "eglscreen.h" +#include "eglstring.h" +#include "eglsurface.h" +#include "eglimage.h" + +#if defined(_EGL_OS_UNIX) +#include <dlfcn.h> +#include <sys/types.h> +#include <dirent.h> +#include <unistd.h> +#endif + + +/** + * Wrappers for dlopen/dlclose() + */ +#if defined(_EGL_OS_WINDOWS) + + +/* XXX Need to decide how to do dynamic name lookup on Windows */ +static const char *DefaultDriverNames[] = { + "egl_gdi_swrast" +}; + +typedef HMODULE lib_handle; + +static HMODULE +open_library(const char *filename) +{ + return LoadLibrary(filename); +} + +static void +close_library(HMODULE lib) +{ + FreeLibrary(lib); +} + + +static const char * +library_suffix(void) +{ + return ".dll"; +} + + +#elif defined(_EGL_OS_UNIX) + + +static const char *DefaultDriverNames[] = { + "egl_dri2", + "egl_glx" +}; + +typedef void * lib_handle; + +static void * +open_library(const char *filename) +{ + return dlopen(filename, RTLD_LAZY); +} + +static void +close_library(void *lib) +{ + dlclose(lib); +} + + +static const char * +library_suffix(void) +{ + return ".so"; +} + + +#endif + + +#define NUM_PROBE_CACHE_SLOTS 8 +static struct { + EGLint keys[NUM_PROBE_CACHE_SLOTS]; + const void *values[NUM_PROBE_CACHE_SLOTS]; +} _eglProbeCache; + + +/** + * Open the named driver and find its bootstrap function: _eglMain(). + */ +static _EGLMain_t +_eglOpenLibrary(const char *driverPath, lib_handle *handle) +{ + lib_handle lib; + _EGLMain_t mainFunc = NULL; + const char *error = "unknown error"; + + assert(driverPath); + + _eglLog(_EGL_DEBUG, "dlopen(%s)", driverPath); + lib = open_library(driverPath); + +#if defined(_EGL_OS_WINDOWS) + /* XXX untested */ + if (lib) + mainFunc = (_EGLMain_t) GetProcAddress(lib, "_eglMain"); +#elif defined(_EGL_OS_UNIX) + if (lib) { + union { + _EGLMain_t func; + void *ptr; + } tmp = { NULL }; + /* direct cast gives a warning when compiled with -pedantic */ + tmp.ptr = dlsym(lib, "_eglMain"); + mainFunc = tmp.func; + if (!mainFunc) + error = dlerror(); + } + else { + error = dlerror(); + } +#endif + + if (!lib) { + _eglLog(_EGL_WARNING, "Could not open driver %s (%s)", + driverPath, error); + if (!getenv("EGL_DRIVER")) + _eglLog(_EGL_WARNING, + "The driver can be overridden by setting EGL_DRIVER"); + return NULL; + } + + if (!mainFunc) { + _eglLog(_EGL_WARNING, "_eglMain not found in %s (%s)", + driverPath, error); + if (lib) + close_library(lib); + return NULL; + } + + *handle = lib; + return mainFunc; +} + + +/** + * Load the named driver. + */ +static _EGLDriver * +_eglLoadDriver(const char *path, const char *args) +{ + _EGLMain_t mainFunc; + lib_handle lib; + _EGLDriver *drv = NULL; + + mainFunc = _eglOpenLibrary(path, &lib); + if (!mainFunc) + return NULL; + + drv = mainFunc(args); + if (!drv) { + if (lib) + close_library(lib); + return NULL; + } + + if (!drv->Name) { + _eglLog(_EGL_WARNING, "Driver loaded from %s has no name", path); + drv->Name = "UNNAMED"; + } + + drv->Path = _eglstrdup(path); + drv->Args = (args) ? _eglstrdup(args) : NULL; + if (!drv->Path || (args && !drv->Args)) { + if (drv->Path) + free((char *) drv->Path); + if (drv->Args) + free((char *) drv->Args); + drv->Unload(drv); + if (lib) + close_library(lib); + return NULL; + } + + drv->LibHandle = lib; + + return drv; +} + + +/** + * Match a display to a preloaded driver. + * + * The matching is done by finding the driver with the highest score. + */ +_EGLDriver * +_eglMatchDriver(_EGLDisplay *dpy) +{ + _EGLDriver *best_drv = NULL; + EGLint best_score = -1, i; + + /* + * this function is called after preloading and the drivers never change + * after preloading. + */ + for (i = 0; i < _eglGlobal.NumDrivers; i++) { + _EGLDriver *drv = _eglGlobal.Drivers[i]; + EGLint score; + + score = (drv->Probe) ? drv->Probe(drv, dpy) : 0; + if (score > best_score) { + if (best_drv) { + _eglLog(_EGL_DEBUG, "driver %s has higher score than %s", + drv->Name, best_drv->Name); + } + + best_drv = drv; + best_score = score; + /* perfect match */ + if (score >= 100) + break; + } + } + + return best_drv; +} + + +/** + * A loader function for use with _eglPreloadForEach. The loader data is the + * filename of the driver. This function stops on the first valid driver. + */ +static EGLBoolean +_eglLoaderFile(const char *dir, size_t len, void *loader_data) +{ + _EGLDriver *drv; + char path[1024]; + const char *filename = (const char *) loader_data; + size_t flen = strlen(filename); + + /* make a full path */ + if (len + flen + 2 > sizeof(path)) + return EGL_TRUE; + if (len) { + memcpy(path, dir, len); + path[len++] = '/'; + } + memcpy(path + len, filename, flen); + len += flen; + path[len] = '\0'; + + if (library_suffix() == NULL || strstr(path, library_suffix())) + drv = _eglLoadDriver(path, NULL); + else { + const char *suffix = library_suffix(); + size_t slen = strlen(suffix); + const char *p; + EGLBoolean need_suffix; + + p = filename + flen - slen; + need_suffix = (p < filename || strcmp(p, suffix) != 0); + if (need_suffix && len + slen + 1 <= sizeof(path)) { + strcpy(path + len, suffix); + drv = _eglLoadDriver(path, NULL); + } else { + drv = NULL; + } + } + if (!drv) + return EGL_TRUE; + + /* remember the driver and stop */ + _eglGlobal.Drivers[_eglGlobal.NumDrivers++] = drv; + return EGL_FALSE; +} + + +/** + * A loader function for use with _eglPreloadForEach. The loader data is the + * pattern (prefix) of the files to look for. + */ +static EGLBoolean +_eglLoaderPattern(const char *dir, size_t len, void *loader_data) +{ +#if defined(_EGL_OS_UNIX) + const char *prefix, *suffix; + size_t prefix_len, suffix_len; + DIR *dirp; + struct dirent *dirent; + char path[1024]; + + if (len + 2 > sizeof(path)) + return EGL_TRUE; + if (len) { + memcpy(path, dir, len); + path[len++] = '/'; + } + path[len] = '\0'; + + dirp = opendir(path); + if (!dirp) + return EGL_TRUE; + + prefix = (const char *) loader_data; + prefix_len = strlen(prefix); + suffix = library_suffix(); + suffix_len = (suffix) ? strlen(suffix) : 0; + + while ((dirent = readdir(dirp))) { + _EGLDriver *drv; + size_t dirent_len = strlen(dirent->d_name); + const char *p; + + /* match the prefix */ + if (strncmp(dirent->d_name, prefix, prefix_len) != 0) + continue; + /* match the suffix */ + if (suffix) { + p = dirent->d_name + dirent_len - suffix_len; + if (p < dirent->d_name || strcmp(p, suffix) != 0) + continue; + } + + /* make a full path and load the driver */ + if (len + dirent_len + 1 <= sizeof(path)) { + strcpy(path + len, dirent->d_name); + drv = _eglLoadDriver(path, NULL); + if (drv) + _eglGlobal.Drivers[_eglGlobal.NumDrivers++] = drv; + } + } + + closedir(dirp); + + return EGL_TRUE; +#else /* _EGL_OS_UNIX */ + /* stop immediately */ + return EGL_FALSE; +#endif +} + + +/** + * Run the preload function on each driver directory and return the number of + * drivers loaded. + * + * The process may end prematurely if the callback function returns false. + */ +static EGLint +_eglPreloadForEach(const char *search_path, + EGLBoolean (*loader)(const char *, size_t, void *), + void *loader_data) +{ + const char *cur, *next; + size_t len; + EGLint num_drivers = _eglGlobal.NumDrivers; + + cur = search_path; + while (cur) { + next = strchr(cur, ':'); + len = (next) ? next - cur : strlen(cur); + + if (!loader(cur, len, loader_data)) + break; + + cur = (next) ? next + 1 : NULL; + } + + return (_eglGlobal.NumDrivers - num_drivers); +} + + +/** + * Return a list of colon-separated driver directories. + */ +static const char * +_eglGetSearchPath(void) +{ + static const char *search_path; + +#if defined(_EGL_OS_UNIX) || defined(_EGL_OS_WINDOWS) + if (!search_path) { + static char buffer[1024]; + const char *p; + int ret; + + p = getenv("EGL_DRIVERS_PATH"); +#if defined(_EGL_OS_UNIX) + if (p && (geteuid() != getuid() || getegid() != getgid())) { + _eglLog(_EGL_DEBUG, + "ignore EGL_DRIVERS_PATH for setuid/setgid binaries"); + p = NULL; + } +#endif /* _EGL_OS_UNIX */ + + if (p) { + ret = _eglsnprintf(buffer, sizeof(buffer), + "%s:%s", p, _EGL_DRIVER_SEARCH_DIR); + if (ret > 0 && ret < sizeof(buffer)) + search_path = buffer; + } + } + if (!search_path) + search_path = _EGL_DRIVER_SEARCH_DIR; +#else + search_path = ""; +#endif + + return search_path; +} + + +/** + * Preload a user driver. + * + * A user driver can be specified by EGL_DRIVER. + */ +static EGLBoolean +_eglPreloadUserDriver(void) +{ + const char *search_path = _eglGetSearchPath(); + char *env; + + env = getenv("EGL_DRIVER"); +#if defined(_EGL_OS_UNIX) + if (env && strchr(env, '/')) { + search_path = ""; + if ((geteuid() != getuid() || getegid() != getgid())) { + _eglLog(_EGL_DEBUG, + "ignore EGL_DRIVER for setuid/setgid binaries"); + env = NULL; + } + } +#endif /* _EGL_OS_UNIX */ + if (!env) + return EGL_FALSE; + + if (!_eglPreloadForEach(search_path, _eglLoaderFile, (void *) env)) { + _eglLog(_EGL_WARNING, "EGL_DRIVER is set to an invalid driver"); + return EGL_FALSE; + } + + return EGL_TRUE; +} + + +/** + * Preload platform drivers. + * + * Platform drivers are a set of drivers that support a certain window system. + * The window system may be specified by EGL_PLATFORM. + * + * FIXME This makes libEGL a memory hog if an user driver is not specified and + * there are many platform drivers. + */ +static EGLBoolean +_eglPreloadPlatformDrivers(void) +{ + const char *dpy; + char prefix[32]; + int ret; + + dpy = getenv("EGL_PLATFORM"); + /* try deprecated env variable */ + if (!dpy || !dpy[0]) + dpy = getenv("EGL_DISPLAY"); + if (!dpy || !dpy[0]) + dpy = _EGL_DEFAULT_PLATFORM; + if (!dpy || !dpy[0]) + return EGL_FALSE; + + ret = _eglsnprintf(prefix, sizeof(prefix), "egl_%s_", dpy); + if (ret < 0 || ret >= sizeof(prefix)) + return EGL_FALSE; + + return (_eglPreloadForEach(_eglGetSearchPath(), + _eglLoaderPattern, (void *) prefix) > 0); +} + + +/** + * Preload drivers. + * + * This function loads the driver modules and creates the corresponding + * _EGLDriver objects. + */ +EGLBoolean +_eglPreloadDrivers(void) +{ + EGLBoolean loaded; + + /* protect the preloading process */ + _eglLockMutex(_eglGlobal.Mutex); + + /* already preloaded */ + if (_eglGlobal.NumDrivers) { + _eglUnlockMutex(_eglGlobal.Mutex); + return EGL_TRUE; + } + + loaded = (_eglPreloadUserDriver() || + _eglPreloadPlatformDrivers()); + + _eglUnlockMutex(_eglGlobal.Mutex); + + return loaded; +} + +/** + * Unload preloaded drivers. + */ +void +_eglUnloadDrivers(void) +{ + EGLint i; + + /* this is called at atexit time */ + for (i = 0; i < _eglGlobal.NumDrivers; i++) { + _EGLDriver *drv = _eglGlobal.Drivers[i]; + lib_handle handle = drv->LibHandle; + + if (drv->Path) + free((char *) drv->Path); + if (drv->Args) + free((char *) drv->Args); + + /* destroy driver */ + if (drv->Unload) + drv->Unload(drv); + + if (handle) + close_library(handle); + _eglGlobal.Drivers[i] = NULL; + } + + _eglGlobal.NumDrivers = 0; +} + +_EGLDriver * +_eglLoadDefaultDriver(EGLDisplay dpy, EGLint *major, EGLint *minor) +{ + _EGLDriver *drv = NULL; + int i; + + _eglLockMutex(_eglGlobal.Mutex); + + for (i = 0; i < ARRAY_SIZE(DefaultDriverNames); i++) { + _eglPreloadForEach(_eglGetSearchPath(), + _eglLoaderFile, (void *) DefaultDriverNames[i]); + if (_eglGlobal.NumDrivers == 0) + continue; + drv = _eglGlobal.Drivers[0]; + if (drv->API.Initialize(drv, dpy, major, minor)) + break; + _eglUnloadDrivers(); + } + + _eglUnlockMutex(_eglGlobal.Mutex); + + return _eglGlobal.NumDrivers > 0 ? drv : NULL; +} + + +/** + * Plug all the available fallback routines into the given driver's + * dispatch table. + */ +void +_eglInitDriverFallbacks(_EGLDriver *drv) +{ + /* If a pointer is set to NULL, then the device driver _really_ has + * to implement it. + */ + drv->API.Initialize = NULL; + drv->API.Terminate = NULL; + + drv->API.GetConfigs = _eglGetConfigs; + drv->API.ChooseConfig = _eglChooseConfig; + drv->API.GetConfigAttrib = _eglGetConfigAttrib; + + drv->API.CreateContext = _eglCreateContext; + drv->API.DestroyContext = _eglDestroyContext; + drv->API.MakeCurrent = _eglMakeCurrent; + drv->API.QueryContext = _eglQueryContext; + + drv->API.CreateWindowSurface = _eglCreateWindowSurface; + drv->API.CreatePixmapSurface = _eglCreatePixmapSurface; + drv->API.CreatePbufferSurface = _eglCreatePbufferSurface; + drv->API.DestroySurface = _eglDestroySurface; + drv->API.QuerySurface = _eglQuerySurface; + drv->API.SurfaceAttrib = _eglSurfaceAttrib; + drv->API.BindTexImage = _eglBindTexImage; + drv->API.ReleaseTexImage = _eglReleaseTexImage; + drv->API.SwapInterval = _eglSwapInterval; + drv->API.SwapBuffers = _eglSwapBuffers; + drv->API.CopyBuffers = _eglCopyBuffers; + + drv->API.QueryString = _eglQueryString; + drv->API.WaitClient = _eglWaitClient; + drv->API.WaitNative = _eglWaitNative; + +#ifdef EGL_MESA_screen_surface + drv->API.ChooseModeMESA = _eglChooseModeMESA; + drv->API.GetModesMESA = _eglGetModesMESA; + drv->API.GetModeAttribMESA = _eglGetModeAttribMESA; + drv->API.GetScreensMESA = _eglGetScreensMESA; + drv->API.CreateScreenSurfaceMESA = _eglCreateScreenSurfaceMESA; + drv->API.ShowScreenSurfaceMESA = _eglShowScreenSurfaceMESA; + drv->API.ScreenPositionMESA = _eglScreenPositionMESA; + drv->API.QueryScreenMESA = _eglQueryScreenMESA; + drv->API.QueryScreenSurfaceMESA = _eglQueryScreenSurfaceMESA; + drv->API.QueryScreenModeMESA = _eglQueryScreenModeMESA; + drv->API.QueryModeStringMESA = _eglQueryModeStringMESA; +#endif /* EGL_MESA_screen_surface */ + +#ifdef EGL_VERSION_1_2 + drv->API.CreatePbufferFromClientBuffer = _eglCreatePbufferFromClientBuffer; +#endif /* EGL_VERSION_1_2 */ + +#ifdef EGL_KHR_image_base + drv->API.CreateImageKHR = _eglCreateImageKHR; + drv->API.DestroyImageKHR = _eglDestroyImageKHR; +#endif /* EGL_KHR_image_base */ +} + + +/** + * Invoke a callback function on each EGL search path. + * + * The first argument of the callback function is the name of the search path. + * The second argument is the length of the name. + */ +void +_eglSearchPathForEach(EGLBoolean (*callback)(const char *, size_t, void *), + void *callback_data) +{ + const char *search_path = _eglGetSearchPath(); + _eglPreloadForEach(search_path, callback, callback_data); +} + + +/** + * Set the probe cache at the given key. + * + * A key, instead of a _EGLDriver, is used to allow the probe cache to be share + * by multiple drivers. + */ +void +_eglSetProbeCache(EGLint key, const void *val) +{ + EGLint idx; + + for (idx = 0; idx < NUM_PROBE_CACHE_SLOTS; idx++) { + if (!_eglProbeCache.keys[idx] || _eglProbeCache.keys[idx] == key) + break; + } + assert(key > 0); + assert(idx < NUM_PROBE_CACHE_SLOTS); + + _eglProbeCache.keys[idx] = key; + _eglProbeCache.values[idx] = val; +} + + +/** + * Return the probe cache at the given key. + */ +const void * +_eglGetProbeCache(EGLint key) +{ + EGLint idx; + + for (idx = 0; idx < NUM_PROBE_CACHE_SLOTS; idx++) { + if (!_eglProbeCache.keys[idx] || _eglProbeCache.keys[idx] == key) + break; + } + + return (idx < NUM_PROBE_CACHE_SLOTS && _eglProbeCache.keys[idx] == key) ? + _eglProbeCache.values[idx] : NULL; +} diff --git a/src/egl/main/egldriver.h b/src/egl/main/egldriver.h new file mode 100644 index 0000000000..8b34c43b92 --- /dev/null +++ b/src/egl/main/egldriver.h @@ -0,0 +1,108 @@ +#ifndef EGLDRIVER_INCLUDED +#define EGLDRIVER_INCLUDED + + +#include "egltypedefs.h" +#include "eglapi.h" + + +/** + * Define an inline driver typecast function. + * + * Note that this macro defines a function and should not be ended with a + * semicolon when used. + */ +#define _EGL_DRIVER_TYPECAST(drvtype, egltype, code) \ + static INLINE struct drvtype *drvtype(const egltype *obj) \ + { return (struct drvtype *) code; } + + +/** + * Define the driver typecast functions for _EGLDriver, _EGLDisplay, + * _EGLContext, _EGLSurface, and _EGLConfig. + * + * Note that this macro defines several functions and should not be ended with + * a semicolon when used. + */ +#define _EGL_DRIVER_STANDARD_TYPECASTS(drvname) \ + _EGL_DRIVER_TYPECAST(drvname ## _driver, _EGLDriver, obj) \ + /* note that this is not a direct cast */ \ + _EGL_DRIVER_TYPECAST(drvname ## _display, _EGLDisplay, obj->DriverData) \ + _EGL_DRIVER_TYPECAST(drvname ## _context, _EGLContext, obj) \ + _EGL_DRIVER_TYPECAST(drvname ## _surface, _EGLSurface, obj) \ + _EGL_DRIVER_TYPECAST(drvname ## _config, _EGLConfig, obj) + + +typedef _EGLDriver *(*_EGLMain_t)(const char *args); + + +/** + * Base class for device drivers. + */ +struct _egl_driver +{ + void *LibHandle; /**< dlopen handle */ + const char *Path; /**< path to this driver */ + const char *Args; /**< args to load this driver */ + + const char *Name; /**< name of this driver */ + + /** + * Probe a display and return a score. + * + * Roughly, + * 50 means the driver supports the display; + * 90 means the driver can accelerate the display; + * 100 means a perfect match. + */ + EGLint (*Probe)(_EGLDriver *drv, _EGLDisplay *dpy); + + /** + * Release the driver resource. + * + * It is called before dlclose(). + */ + void (*Unload)(_EGLDriver *drv); + + _EGLAPI API; /**< EGL API dispatch table */ +}; + + +PUBLIC _EGLDriver * +_eglMain(const char *args); + + +extern _EGLDriver * +_eglMatchDriver(_EGLDisplay *dpy); + + +extern EGLBoolean +_eglPreloadDrivers(void); + + +extern void +_eglUnloadDrivers(void); + + +extern _EGLDriver * +_eglLoadDefaultDriver(EGLDisplay dpy, EGLint *major, EGLint *minor); + + +PUBLIC void +_eglInitDriverFallbacks(_EGLDriver *drv); + + +PUBLIC void +_eglSearchPathForEach(EGLBoolean (*callback)(const char *, size_t, void *), + void *callback_data); + + +PUBLIC void +_eglSetProbeCache(EGLint key, const void *val); + + +PUBLIC const void * +_eglGetProbeCache(EGLint key); + + +#endif /* EGLDRIVER_INCLUDED */ diff --git a/src/egl/main/eglglobals.c b/src/egl/main/eglglobals.c new file mode 100644 index 0000000000..e63819e08a --- /dev/null +++ b/src/egl/main/eglglobals.c @@ -0,0 +1,53 @@ +#include <stdlib.h> +#include <assert.h> +#include "eglglobals.h" +#include "egldisplay.h" +#include "egldriver.h" +#include "eglmutex.h" + + +static _EGL_DECLARE_MUTEX(_eglGlobalMutex); +struct _egl_global _eglGlobal = +{ + &_eglGlobalMutex, /* Mutex */ + NULL, /* DisplayList */ + 1, /* FreeScreenHandle */ + 0, /* NumDrivers */ + { NULL }, /* Drivers */ + 2, /* NumAtExitCalls */ + { + /* default AtExitCalls, called in reverse order */ + _eglUnloadDrivers, /* always called last */ + _eglFiniDisplay + }, +}; + + +static void +_eglAtExit(void) +{ + EGLint i; + for (i = _eglGlobal.NumAtExitCalls - 1; i >= 0; i--) + _eglGlobal.AtExitCalls[i](); +} + + +void +_eglAddAtExitCall(void (*func)(void)) +{ + if (func) { + static EGLBoolean registered = EGL_FALSE; + + _eglLockMutex(_eglGlobal.Mutex); + + if (!registered) { + atexit(_eglAtExit); + registered = EGL_TRUE; + } + + assert(_eglGlobal.NumAtExitCalls < ARRAY_SIZE(_eglGlobal.AtExitCalls)); + _eglGlobal.AtExitCalls[_eglGlobal.NumAtExitCalls++] = func; + + _eglUnlockMutex(_eglGlobal.Mutex); + } +} diff --git a/src/egl/main/eglglobals.h b/src/egl/main/eglglobals.h new file mode 100644 index 0000000000..4368898020 --- /dev/null +++ b/src/egl/main/eglglobals.h @@ -0,0 +1,37 @@ +#ifndef EGLGLOBALS_INCLUDED +#define EGLGLOBALS_INCLUDED + + +#include "egltypedefs.h" +#include "eglmutex.h" + + +/** + * Global library data + */ +struct _egl_global +{ + _EGLMutex *Mutex; + + /* the list of all displays */ + _EGLDisplay *DisplayList; + + EGLScreenMESA FreeScreenHandle; + + /* these never change after preloading */ + EGLint NumDrivers; + _EGLDriver *Drivers[10]; + + EGLint NumAtExitCalls; + void (*AtExitCalls[10])(void); +}; + + +extern struct _egl_global _eglGlobal; + + +extern void +_eglAddAtExitCall(void (*func)(void)); + + +#endif /* EGLGLOBALS_INCLUDED */ diff --git a/src/egl/main/eglimage.c b/src/egl/main/eglimage.c new file mode 100644 index 0000000000..5732ef35ec --- /dev/null +++ b/src/egl/main/eglimage.c @@ -0,0 +1,90 @@ +#include <assert.h> +#include <string.h> + +#include "eglimage.h" +#include "eglcurrent.h" +#include "egllog.h" + + +#ifdef EGL_KHR_image_base + + +/** + * Parse the list of image attributes and return the proper error code. + */ +static EGLint +_eglParseImageAttribList(_EGLImage *img, const EGLint *attrib_list) +{ + EGLint i, err = EGL_SUCCESS; + + if (!attrib_list) + return EGL_SUCCESS; + + for (i = 0; attrib_list[i] != EGL_NONE; i++) { + EGLint attr = attrib_list[i++]; + EGLint val = attrib_list[i]; + + switch (attr) { + case EGL_IMAGE_PRESERVED_KHR: + img->Preserved = val; + break; + case EGL_GL_TEXTURE_LEVEL_KHR: + img->GLTextureLevel = val; + break; + case EGL_GL_TEXTURE_ZOFFSET_KHR: + img->GLTextureZOffset = val; + break; + default: + /* unknown attrs are ignored */ + break; + } + + if (err != EGL_SUCCESS) { + _eglLog(_EGL_DEBUG, "bad image attribute 0x%04x", attr); + break; + } + } + + return err; +} + + +EGLBoolean +_eglInitImage(_EGLImage *img, _EGLDisplay *dpy, const EGLint *attrib_list) +{ + EGLint err; + + memset(img, 0, sizeof(_EGLImage)); + img->Resource.Display = dpy; + + img->Preserved = EGL_FALSE; + img->GLTextureLevel = 0; + img->GLTextureZOffset = 0; + + err = _eglParseImageAttribList(img, attrib_list); + if (err != EGL_SUCCESS) + return _eglError(err, "eglCreateImageKHR"); + + return EGL_TRUE; +} + + +_EGLImage * +_eglCreateImageKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx, + EGLenum target, EGLClientBuffer buffer, + const EGLint *attr_list) +{ + /* driver should override this function */ + return NULL; +} + + +EGLBoolean +_eglDestroyImageKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLImage *image) +{ + /* driver should override this function */ + return EGL_FALSE; +} + + +#endif /* EGL_KHR_image_base */ diff --git a/src/egl/main/eglimage.h b/src/egl/main/eglimage.h new file mode 100644 index 0000000000..2c0fb16d1d --- /dev/null +++ b/src/egl/main/eglimage.h @@ -0,0 +1,96 @@ +#ifndef EGLIMAGE_INCLUDED +#define EGLIMAGE_INCLUDED + + +#include "egltypedefs.h" +#include "egldisplay.h" + + +/** + * "Base" class for device driver images. + */ +struct _egl_image +{ + /* An image is a display resource */ + _EGLResource Resource; + + EGLBoolean Preserved; + EGLint GLTextureLevel; + EGLint GLTextureZOffset; +}; + + +PUBLIC EGLBoolean +_eglInitImage(_EGLImage *img, _EGLDisplay *dpy, const EGLint *attrib_list); + + +extern _EGLImage * +_eglCreateImageKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx, + EGLenum target, EGLClientBuffer buffer, const EGLint *attr_list); + + +extern EGLBoolean +_eglDestroyImageKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLImage *image); + + +/** + * Link an image to a display and return the handle of the link. + * The handle can be passed to client directly. + */ +static INLINE EGLImageKHR +_eglLinkImage(_EGLImage *img, _EGLDisplay *dpy) +{ + _eglLinkResource(&img->Resource, _EGL_RESOURCE_IMAGE, dpy); + return (EGLImageKHR) img; +} + + +/** + * Unlink a linked image from its display. + * Accessing an unlinked image should generate EGL_BAD_PARAMETER error. + */ +static INLINE void +_eglUnlinkImage(_EGLImage *img) +{ + _eglUnlinkResource(&img->Resource, _EGL_RESOURCE_IMAGE); +} + + +/** + * Lookup a handle to find the linked image. + * Return NULL if the handle has no corresponding linked image. + */ +static INLINE _EGLImage * +_eglLookupImage(EGLImageKHR image, _EGLDisplay *dpy) +{ + _EGLImage *img = (_EGLImage *) image; + if (!dpy || !_eglCheckResource((void *) img, _EGL_RESOURCE_IMAGE, dpy)) + img = NULL; + return img; +} + + +/** + * Return the handle of a linked image, or EGL_NO_IMAGE_KHR. + */ +static INLINE EGLImageKHR +_eglGetImageHandle(_EGLImage *img) +{ + _EGLResource *res = (_EGLResource *) img; + return (res && _eglIsResourceLinked(res)) ? + (EGLImageKHR) img : EGL_NO_IMAGE_KHR; +} + + +/** + * Return true if the image is linked to a display. + */ +static INLINE EGLBoolean +_eglIsImageLinked(_EGLImage *img) +{ + _EGLResource *res = (_EGLResource *) img; + return (res && _eglIsResourceLinked(res)); +} + + +#endif /* EGLIMAGE_INCLUDED */ diff --git a/src/egl/main/egllog.c b/src/egl/main/egllog.c new file mode 100644 index 0000000000..8f3bae2243 --- /dev/null +++ b/src/egl/main/egllog.c @@ -0,0 +1,176 @@ +/** + * Logging facility for debug/info messages. + * _EGL_FATAL messages are printed to stderr + * The EGL_LOG_LEVEL var controls the output of other warning/info/debug msgs. + */ + + +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "egllog.h" +#include "eglstring.h" +#include "eglmutex.h" + +#define MAXSTRING 1000 +#define FALLBACK_LOG_LEVEL _EGL_WARNING + + +static struct { + _EGLMutex mutex; + + EGLBoolean initialized; + EGLint level; + _EGLLogProc logger; + EGLint num_messages; +} logging = { + _EGL_MUTEX_INITIALIZER, + EGL_FALSE, + FALLBACK_LOG_LEVEL, + NULL, + 0 +}; + +static const char *level_strings[] = { + /* the order is important */ + "fatal", + "warning", + "info", + "debug", + NULL +}; + + +/** + * Set the function to be called when there is a message to log. + * Note that the function will be called with an internal lock held. + * Recursive logging is not allowed. + */ +void +_eglSetLogProc(_EGLLogProc logger) +{ + EGLint num_messages = 0; + + _eglLockMutex(&logging.mutex); + + if (logging.logger != logger) { + logging.logger = logger; + + num_messages = logging.num_messages; + logging.num_messages = 0; + } + + _eglUnlockMutex(&logging.mutex); + + if (num_messages) + _eglLog(_EGL_DEBUG, + "New logger installed. " + "Messages before the new logger might not be available."); +} + + +/** + * Set the log reporting level. + */ +void +_eglSetLogLevel(EGLint level) +{ + switch (level) { + case _EGL_FATAL: + case _EGL_WARNING: + case _EGL_INFO: + case _EGL_DEBUG: + _eglLockMutex(&logging.mutex); + logging.level = level; + _eglUnlockMutex(&logging.mutex); + break; + default: + break; + } +} + + +/** + * The default logger. It prints the message to stderr. + */ +static void +_eglDefaultLogger(EGLint level, const char *msg) +{ + fprintf(stderr, "libEGL %s: %s\n", level_strings[level], msg); +} + + +/** + * Initialize the logging facility. + */ +static void +_eglInitLogger(void) +{ + const char *log_env; + EGLint i, level = -1; + + if (logging.initialized) + return; + + log_env = getenv("EGL_LOG_LEVEL"); + if (log_env) { + for (i = 0; level_strings[i]; i++) { + if (_eglstrcasecmp(log_env, level_strings[i]) == 0) { + level = i; + break; + } + } + } + else { + level = FALLBACK_LOG_LEVEL; + } + + logging.logger = _eglDefaultLogger; + logging.level = (level >= 0) ? level : FALLBACK_LOG_LEVEL; + logging.initialized = EGL_TRUE; + + /* it is fine to call _eglLog now */ + if (log_env && level < 0) { + _eglLog(_EGL_WARNING, + "Unrecognized EGL_LOG_LEVEL environment variable value. " + "Expected one of \"fatal\", \"warning\", \"info\", \"debug\". " + "Got \"%s\". Falling back to \"%s\".", + log_env, level_strings[FALLBACK_LOG_LEVEL]); + } +} + + +/** + * Log a message with message logger. + * \param level one of _EGL_FATAL, _EGL_WARNING, _EGL_INFO, _EGL_DEBUG. + */ +void +_eglLog(EGLint level, const char *fmtStr, ...) +{ + va_list args; + char msg[MAXSTRING]; + + /* one-time initialization; a little race here is fine */ + if (!logging.initialized) + _eglInitLogger(); + if (level > logging.level || level < 0) + return; + + _eglLockMutex(&logging.mutex); + + if (logging.logger) { + va_start(args, fmtStr); + vsnprintf(msg, MAXSTRING, fmtStr, args); + va_end(args); + + logging.logger(level, msg); + logging.num_messages++; + } + + _eglUnlockMutex(&logging.mutex); + + if (level == _EGL_FATAL) + exit(1); /* or abort()? */ +} diff --git a/src/egl/main/egllog.h b/src/egl/main/egllog.h new file mode 100644 index 0000000000..03bef2670f --- /dev/null +++ b/src/egl/main/egllog.h @@ -0,0 +1,29 @@ +#ifndef EGLLOG_INCLUDED +#define EGLLOG_INCLUDED + + +#include "egltypedefs.h" + + +#define _EGL_FATAL 0 /* unrecoverable error */ +#define _EGL_WARNING 1 /* recoverable error/problem */ +#define _EGL_INFO 2 /* just useful info */ +#define _EGL_DEBUG 3 /* useful info for debugging */ + + +typedef void (*_EGLLogProc)(EGLint level, const char *msg); + + +PUBLIC void +_eglSetLogProc(_EGLLogProc logger); + + +PUBLIC void +_eglSetLogLevel(EGLint level); + + +PUBLIC void +_eglLog(EGLint level, const char *fmtStr, ...); + + +#endif /* EGLLOG_INCLUDED */ diff --git a/src/egl/main/eglmisc.c b/src/egl/main/eglmisc.c new file mode 100644 index 0000000000..4652969659 --- /dev/null +++ b/src/egl/main/eglmisc.c @@ -0,0 +1,180 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +/** + * Small/misc EGL functions + */ + + +#include <assert.h> +#include <string.h> +#include "eglcurrent.h" +#include "eglmisc.h" +#include "egldisplay.h" + + +/** + * Copy the extension into the string and update the string pointer. + */ +static EGLint +_eglAppendExtension(char **str, const char *ext) +{ + char *s = *str; + size_t len = strlen(ext); + + if (s) { + memcpy(s, ext, len); + s[len++] = ' '; + s[len] = '\0'; + + *str += len; + } + else { + len++; + } + + return (EGLint) len; +} + + +/** + * Examine the individual extension enable/disable flags and recompute + * the driver's Extensions string. + */ +static void +_eglUpdateExtensionsString(_EGLDisplay *dpy) +{ +#define _EGL_CHECK_EXTENSION(ext) \ + do { \ + if (dpy->Extensions.ext) { \ + _eglAppendExtension(&exts, "EGL_" #ext); \ + assert(exts <= dpy->Extensions.String + _EGL_MAX_EXTENSIONS_LEN); \ + } \ + } while (0) + + char *exts = dpy->Extensions.String; + + if (exts[0]) + return; + + _EGL_CHECK_EXTENSION(MESA_screen_surface); + _EGL_CHECK_EXTENSION(MESA_copy_context); + + _EGL_CHECK_EXTENSION(KHR_image_base); + _EGL_CHECK_EXTENSION(KHR_image_pixmap); + if (dpy->Extensions.KHR_image_base && dpy->Extensions.KHR_image_pixmap) + _eglAppendExtension(&exts, "EGL_KHR_image"); + + _EGL_CHECK_EXTENSION(KHR_vg_parent_image); + _EGL_CHECK_EXTENSION(KHR_gl_texture_2D_image); + _EGL_CHECK_EXTENSION(KHR_gl_texture_cubemap_image); + _EGL_CHECK_EXTENSION(KHR_gl_texture_3D_image); + _EGL_CHECK_EXTENSION(KHR_gl_renderbuffer_image); + + _EGL_CHECK_EXTENSION(NOK_swap_region); + _EGL_CHECK_EXTENSION(NOK_texture_from_pixmap); +#undef _EGL_CHECK_EXTENSION +} + + +static void +_eglUpdateAPIsString(_EGLDisplay *dpy) +{ + char *apis = dpy->ClientAPIs; + + if (apis[0] || !dpy->ClientAPIsMask) + return; + + if (dpy->ClientAPIsMask & EGL_OPENGL_BIT) + strcat(apis, "OpenGL "); + + if (dpy->ClientAPIsMask & EGL_OPENGL_ES_BIT) + strcat(apis, "OpenGL_ES "); + + if (dpy->ClientAPIsMask & EGL_OPENGL_ES2_BIT) + strcat(apis, "OpenGL_ES2 "); + + if (dpy->ClientAPIsMask & EGL_OPENVG_BIT) + strcat(apis, "OpenVG "); + + assert(strlen(apis) < sizeof(dpy->ClientAPIs)); +} + + +const char * +_eglQueryString(_EGLDriver *drv, _EGLDisplay *dpy, EGLint name) +{ + (void) drv; + (void) dpy; + switch (name) { + case EGL_VENDOR: + return _EGL_VENDOR_STRING; + case EGL_VERSION: + return dpy->Version; + case EGL_EXTENSIONS: + _eglUpdateExtensionsString(dpy); + return dpy->Extensions.String; +#ifdef EGL_VERSION_1_2 + case EGL_CLIENT_APIS: + _eglUpdateAPIsString(dpy); + return dpy->ClientAPIs; +#endif + default: + _eglError(EGL_BAD_PARAMETER, "eglQueryString"); + return NULL; + } +} + + +EGLBoolean +_eglWaitClient(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx) +{ + /* just a placeholder */ + (void) drv; + (void) dpy; + (void) ctx; + return EGL_TRUE; +} + + +EGLBoolean +_eglWaitNative(_EGLDriver *drv, _EGLDisplay *dpy, EGLint engine) +{ + /* just a placeholder */ + (void) drv; + (void) dpy; + switch (engine) { + case EGL_CORE_NATIVE_ENGINE: + break; + default: + _eglError(EGL_BAD_PARAMETER, "eglWaitNative(engine)"); + return EGL_FALSE; + } + + return EGL_TRUE; +} diff --git a/src/egl/main/eglmisc.h b/src/egl/main/eglmisc.h new file mode 100644 index 0000000000..5e6a2d41df --- /dev/null +++ b/src/egl/main/eglmisc.h @@ -0,0 +1,48 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +#ifndef EGLMISC_INCLUDED +#define EGLMISC_INCLUDED + + +#include "egltypedefs.h" + + +extern const char * +_eglQueryString(_EGLDriver *drv, _EGLDisplay *dpy, EGLint name); + + +extern EGLBoolean +_eglWaitClient(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx); + + +extern EGLBoolean +_eglWaitNative(_EGLDriver *drv, _EGLDisplay *dpy, EGLint engine); + + +#endif /* EGLMISC_INCLUDED */ diff --git a/src/egl/main/eglmode.c b/src/egl/main/eglmode.c new file mode 100644 index 0000000000..66446c0495 --- /dev/null +++ b/src/egl/main/eglmode.c @@ -0,0 +1,352 @@ +#include <assert.h> +#include <stdlib.h> +#include <string.h> + +#include "egldisplay.h" +#include "egldriver.h" +#include "eglmode.h" +#include "eglcurrent.h" +#include "eglscreen.h" +#include "eglstring.h" + + +#define MIN2(A, B) (((A) < (B)) ? (A) : (B)) + + +/** + * Given an EGLModeMESA handle, return the corresponding _EGLMode object + * or null if non-existant. + */ +_EGLMode * +_eglLookupMode(EGLModeMESA mode, _EGLDisplay *disp) +{ + EGLint scrnum; + + /* loop over all screens on the display */ + for (scrnum = 0; scrnum < disp->NumScreens; scrnum++) { + const _EGLScreen *scrn = disp->Screens[scrnum]; + EGLint i; + /* search list of modes for handle */ + for (i = 0; i < scrn->NumModes; i++) { + if (scrn->Modes[i].Handle == mode) { + return scrn->Modes + i; + } + } + } + + return NULL; +} + + +/** + * Add a new mode with the given attributes (width, height, depth, refreshRate) + * to the given screen. + * Assign a new mode ID/handle to the mode as well. + * \return pointer to the new _EGLMode + */ +_EGLMode * +_eglAddNewMode(_EGLScreen *screen, EGLint width, EGLint height, + EGLint refreshRate, const char *name) +{ + EGLint n; + _EGLMode *newModes; + + assert(screen); + assert(width > 0); + assert(height > 0); + assert(refreshRate > 0); + + n = screen->NumModes; + newModes = (_EGLMode *) realloc(screen->Modes, (n+1) * sizeof(_EGLMode)); + if (newModes) { + screen->Modes = newModes; + screen->Modes[n].Handle = n + 1; + screen->Modes[n].Width = width; + screen->Modes[n].Height = height; + screen->Modes[n].RefreshRate = refreshRate; + screen->Modes[n].Optimal = EGL_FALSE; + screen->Modes[n].Interlaced = EGL_FALSE; + screen->Modes[n].Name = _eglstrdup(name); + screen->NumModes++; + return screen->Modes + n; + } + else { + return NULL; + } +} + + + +/** + * Parse the attrib_list to fill in the fields of the given _eglMode + * Return EGL_FALSE if any errors, EGL_TRUE otherwise. + */ +static EGLBoolean +_eglParseModeAttribs(_EGLMode *mode, const EGLint *attrib_list) +{ + EGLint i; + + /* init all attribs to EGL_DONT_CARE */ + mode->Handle = EGL_DONT_CARE; + mode->Width = EGL_DONT_CARE; + mode->Height = EGL_DONT_CARE; + mode->RefreshRate = EGL_DONT_CARE; + mode->Optimal = EGL_DONT_CARE; + mode->Interlaced = EGL_DONT_CARE; + mode->Name = NULL; + + for (i = 0; attrib_list && attrib_list[i] != EGL_NONE; i++) { + switch (attrib_list[i]) { + case EGL_MODE_ID_MESA: + mode->Handle = attrib_list[++i]; + if (mode->Handle <= 0) { + _eglError(EGL_BAD_PARAMETER, "eglChooseModeMESA(handle)"); + return EGL_FALSE; + } + break; + case EGL_WIDTH: + mode->Width = attrib_list[++i]; + if (mode->Width <= 0) { + _eglError(EGL_BAD_PARAMETER, "eglChooseModeMESA(width)"); + return EGL_FALSE; + } + break; + case EGL_HEIGHT: + mode->Height = attrib_list[++i]; + if (mode->Height <= 0) { + _eglError(EGL_BAD_PARAMETER, "eglChooseModeMESA(height)"); + return EGL_FALSE; + } + break; + case EGL_REFRESH_RATE_MESA: + mode->RefreshRate = attrib_list[++i]; + if (mode->RefreshRate <= 0) { + _eglError(EGL_BAD_PARAMETER, "eglChooseModeMESA(refresh rate)"); + return EGL_FALSE; + } + break; + case EGL_INTERLACED_MESA: + mode->Interlaced = attrib_list[++i]; + if (mode->Interlaced != EGL_TRUE && mode->Interlaced != EGL_FALSE) { + _eglError(EGL_BAD_PARAMETER, "eglChooseModeMESA(interlaced)"); + return EGL_FALSE; + } + break; + case EGL_OPTIMAL_MESA: + mode->Optimal = attrib_list[++i]; + if (mode->Optimal != EGL_TRUE && mode->Optimal != EGL_FALSE) { + _eglError(EGL_BAD_PARAMETER, "eglChooseModeMESA(optimal)"); + return EGL_FALSE; + } + break; + default: + _eglError(EGL_BAD_ATTRIBUTE, "eglChooseModeMESA"); + return EGL_FALSE; + } + } + return EGL_TRUE; +} + + +/** + * Determine if the candidate mode's attributes are at least as good + * as the minimal mode's. + * \return EGL_TRUE if qualifies, EGL_FALSE otherwise + */ +static EGLBoolean +_eglModeQualifies(const _EGLMode *c, const _EGLMode *min) +{ + if (min->Handle != EGL_DONT_CARE && c->Handle != min->Handle) + return EGL_FALSE; + if (min->Width != EGL_DONT_CARE && c->Width < min->Width) + return EGL_FALSE; + if (min->Height != EGL_DONT_CARE && c->Height < min->Height) + return EGL_FALSE; + if (min->RefreshRate != EGL_DONT_CARE && c->RefreshRate < min->RefreshRate) + return EGL_FALSE; + if (min->Optimal != EGL_DONT_CARE && c->Optimal != min->Optimal) + return EGL_FALSE; + if (min->Interlaced != EGL_DONT_CARE && c->Interlaced != min->Interlaced) + return EGL_FALSE; + + return EGL_TRUE; +} + + +/** + * Return value of given mode attribute, or -1 if bad attrib. + */ +static EGLint +getModeAttrib(const _EGLMode *m, EGLint attrib) +{ + switch (attrib) { + case EGL_MODE_ID_MESA: + return m->Handle; + case EGL_WIDTH: + return m->Width; + case EGL_HEIGHT: + return m->Height; + case EGL_REFRESH_RATE_MESA: + return m->RefreshRate; + case EGL_OPTIMAL_MESA: + return m->Optimal; + case EGL_INTERLACED_MESA: + return m->Interlaced; + default: + return -1; + } +} + + +#define SMALLER 1 +#define LARGER 2 + +struct sort_info { + EGLint Attrib; + EGLint Order; /* SMALLER or LARGER */ +}; + +/* the order of these entries is the priority */ +static struct sort_info SortInfo[] = { + { EGL_OPTIMAL_MESA, LARGER }, + { EGL_INTERLACED_MESA, SMALLER }, + { EGL_WIDTH, LARGER }, + { EGL_HEIGHT, LARGER }, + { EGL_REFRESH_RATE_MESA, LARGER }, + { EGL_MODE_ID_MESA, SMALLER }, + { 0, 0 } +}; + + +/** + * Compare modes 'a' and 'b' and return -1 if a belongs before b, or 1 if a + * belongs after b, or 0 if they're equal. + * Used by qsort(). + */ +static int +_eglCompareModes(const void *a, const void *b) +{ + const _EGLMode *aMode = *((const _EGLMode **) a); + const _EGLMode *bMode = *((const _EGLMode **) b); + EGLint i; + + for (i = 0; SortInfo[i].Attrib; i++) { + const EGLint aVal = getModeAttrib(aMode, SortInfo[i].Attrib); + const EGLint bVal = getModeAttrib(bMode, SortInfo[i].Attrib); + if (aVal == bVal) { + /* a tie */ + continue; + } + else if (SortInfo[i].Order == SMALLER) { + return (aVal < bVal) ? -1 : 1; + } + else if (SortInfo[i].Order == LARGER) { + return (aVal > bVal) ? -1 : 1; + } + } + + /* all attributes identical */ + return 0; +} + + +/** + * Search for EGLModes which match the given attribute list. + * Called via eglChooseModeMESA API function. + */ +EGLBoolean +_eglChooseModeMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, + const EGLint *attrib_list, EGLModeMESA *modes, + EGLint modes_size, EGLint *num_modes) +{ + _EGLMode **modeList, min; + EGLint i, count; + + if (!_eglParseModeAttribs(&min, attrib_list)) { + /* error code will have been recorded */ + return EGL_FALSE; + } + + /* allocate array of mode pointers */ + modeList = (_EGLMode **) malloc(modes_size * sizeof(_EGLMode *)); + if (!modeList) { + _eglError(EGL_BAD_MODE_MESA, "eglChooseModeMESA(out of memory)"); + return EGL_FALSE; + } + + /* make array of pointers to qualifying modes */ + for (i = count = 0; i < scrn->NumModes && count < modes_size; i++) { + if (_eglModeQualifies(scrn->Modes + i, &min)) { + modeList[count++] = scrn->Modes + i; + } + } + + /* sort array of pointers */ + qsort(modeList, count, sizeof(_EGLMode *), _eglCompareModes); + + /* copy mode handles to output array */ + for (i = 0; i < count; i++) { + modes[i] = modeList[i]->Handle; + } + + free(modeList); + + *num_modes = count; + + return EGL_TRUE; +} + + + +/** + * Return all possible modes for the given screen. No sorting of results. + * Called via eglGetModesMESA() API function. + */ +EGLBoolean +_eglGetModesMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, + EGLModeMESA *modes, EGLint modes_size, EGLint *num_modes) +{ + if (modes) { + EGLint i; + *num_modes = MIN2(scrn->NumModes, modes_size); + for (i = 0; i < *num_modes; i++) { + modes[i] = scrn->Modes[i].Handle; + } + } + else { + /* just return total number of supported modes */ + *num_modes = scrn->NumModes; + } + + return EGL_TRUE; +} + + +/** + * Query an attribute of a mode. + */ +EGLBoolean +_eglGetModeAttribMESA(_EGLDriver *drv, _EGLDisplay *dpy, + _EGLMode *m, EGLint attribute, EGLint *value) +{ + EGLint v; + + v = getModeAttrib(m, attribute); + if (v < 0) { + _eglError(EGL_BAD_ATTRIBUTE, "eglGetModeAttribMESA"); + return EGL_FALSE; + } + *value = v; + return EGL_TRUE; +} + + +/** + * Return human-readable string for given mode. + * This is the default function called by eglQueryModeStringMESA(). + */ +const char * +_eglQueryModeStringMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLMode *m) +{ + return m->Name; +} diff --git a/src/egl/main/eglmode.h b/src/egl/main/eglmode.h new file mode 100644 index 0000000000..a089a5e194 --- /dev/null +++ b/src/egl/main/eglmode.h @@ -0,0 +1,57 @@ +#ifndef EGLMODE_INCLUDED +#define EGLMODE_INCLUDED + +#include "egltypedefs.h" + + +#define EGL_NO_MODE_MESA 0 + + +/** + * Data structure which corresponds to an EGLModeMESA. + */ +struct _egl_mode +{ + EGLModeMESA Handle; /* the public/opaque handle which names this mode */ + EGLint Width, Height; /* size in pixels */ + EGLint RefreshRate; /* rate * 1000.0 */ + EGLint Optimal; + EGLint Interlaced; + const char *Name; + + /* Other possible attributes */ + /* interlaced */ + /* external sync */ +}; + + +extern _EGLMode * +_eglLookupMode(EGLModeMESA mode, _EGLDisplay *dpy); + + +PUBLIC _EGLMode * +_eglAddNewMode(_EGLScreen *screen, EGLint width, EGLint height, + EGLint refreshRate, const char *name); + + +extern EGLBoolean +_eglChooseModeMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, + const EGLint *attrib_list, EGLModeMESA *modes, + EGLint modes_size, EGLint *num_modes); + + +extern EGLBoolean +_eglGetModesMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, + EGLModeMESA *modes, EGLint modes_size, EGLint *num_modes); + + +extern EGLBoolean +_eglGetModeAttribMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLMode *m, + EGLint attribute, EGLint *value); + + +extern const char * +_eglQueryModeStringMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLMode *m); + + +#endif /* EGLMODE_INCLUDED */ diff --git a/src/egl/main/eglmutex.h b/src/egl/main/eglmutex.h new file mode 100644 index 0000000000..29faba0f24 --- /dev/null +++ b/src/egl/main/eglmutex.h @@ -0,0 +1,52 @@ +#ifndef EGLMUTEX_INCLUDED +#define EGLMUTEX_INCLUDED + +#include "eglcompiler.h" + +#ifdef PTHREADS +#include <pthread.h> + +typedef pthread_mutex_t _EGLMutex; + +static INLINE void _eglInitMutex(_EGLMutex *m) +{ + pthread_mutex_init(m, NULL); +} + +static INLINE void +_eglDestroyMutex(_EGLMutex *m) +{ + pthread_mutex_destroy(m); +} + +static INLINE void +_eglLockMutex(_EGLMutex *m) +{ + pthread_mutex_lock(m); +} + +static INLINE void +_eglUnlockMutex(_EGLMutex *m) +{ + pthread_mutex_unlock(m); +} + +#define _EGL_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER +#define _EGL_DECLARE_MUTEX(m) \ + _EGLMutex m = _EGL_MUTEX_INITIALIZER + +#else + +typedef int _EGLMutex; +static INLINE void _eglInitMutex(_EGLMutex *m) { (void) m; } +static INLINE void _eglDestroyMutex(_EGLMutex *m) { (void) m; } +static INLINE void _eglLockMutex(_EGLMutex *m) { (void) m; } +static INLINE void _eglUnlockMutex(_EGLMutex *m) { (void) m; } + +#define _EGL_MUTEX_INITIALIZER 0 +#define _EGL_DECLARE_MUTEX(m) \ + _EGLMutex m = _EGL_MUTEX_INITIALIZER + +#endif + +#endif /* EGLMUTEX_INCLUDED */ diff --git a/src/egl/main/eglscreen.c b/src/egl/main/eglscreen.c new file mode 100644 index 0000000000..c47afd6abd --- /dev/null +++ b/src/egl/main/eglscreen.c @@ -0,0 +1,265 @@ +/* + * Ideas for screen management extension to EGL. + * + * Each EGLDisplay has one or more screens (CRTs, Flat Panels, etc). + * The screens' handles can be obtained with eglGetScreensMESA(). + * + * A new kind of EGLSurface is possible- one which can be directly scanned + * out on a screen. Such a surface is created with eglCreateScreenSurface(). + * + * To actually display a screen surface on a screen, the eglShowSurface() + * function is called. + */ + +#include <assert.h> +#include <stdlib.h> +#include <string.h> + +#include "egldisplay.h" +#include "eglglobals.h" +#include "eglcurrent.h" +#include "eglmode.h" +#include "eglconfig.h" +#include "eglsurface.h" +#include "eglscreen.h" +#include "eglmutex.h" + + +/** + * Return a new screen handle/ID. + * NOTE: we never reuse these! + */ +static EGLScreenMESA +_eglAllocScreenHandle(void) +{ + EGLScreenMESA s; + + _eglLockMutex(_eglGlobal.Mutex); + s = _eglGlobal.FreeScreenHandle++; + _eglUnlockMutex(_eglGlobal.Mutex); + + return s; +} + + +/** + * Initialize an _EGLScreen object to default values. + */ +void +_eglInitScreen(_EGLScreen *screen) +{ + memset(screen, 0, sizeof(_EGLScreen)); + screen->StepX = 1; + screen->StepY = 1; +} + + +/** + * Given a public screen handle, return the internal _EGLScreen object. + */ +_EGLScreen * +_eglLookupScreen(EGLScreenMESA screen, _EGLDisplay *display) +{ + EGLint i; + + for (i = 0; i < display->NumScreens; i++) { + if (display->Screens[i]->Handle == screen) + return display->Screens[i]; + } + return NULL; +} + + +/** + * Add the given _EGLScreen to the display's list of screens. + */ +void +_eglAddScreen(_EGLDisplay *display, _EGLScreen *screen) +{ + EGLint n; + + assert(display); + assert(screen); + + screen->Handle = _eglAllocScreenHandle(); + n = display->NumScreens; + display->Screens = realloc(display->Screens, (n+1) * sizeof(_EGLScreen *)); + display->Screens[n] = screen; + display->NumScreens++; +} + + + +EGLBoolean +_eglGetScreensMESA(_EGLDriver *drv, _EGLDisplay *display, EGLScreenMESA *screens, + EGLint max_screens, EGLint *num_screens) +{ + EGLint n; + + if (display->NumScreens > max_screens) { + n = max_screens; + } + else { + n = display->NumScreens; + } + + if (screens) { + EGLint i; + for (i = 0; i < n; i++) + screens[i] = display->Screens[i]->Handle; + } + if (num_screens) + *num_screens = n; + + return EGL_TRUE; +} + + +/** + * Drivers should do a proper implementation. + */ +_EGLSurface * +_eglCreateScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, + const EGLint *attrib_list) +{ + return NULL; +} + + +/** + * Show the given surface on the named screen. + * If surface is EGL_NO_SURFACE, disable the screen's output. + * + * This is just a placeholder function; drivers will always override + * this with code that _really_ shows the surface. + */ +EGLBoolean +_eglShowScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy, + _EGLScreen *scrn, _EGLSurface *surf, + _EGLMode *mode) +{ + if (!surf) { + scrn->CurrentSurface = NULL; + } + else { + if (surf->Type != EGL_SCREEN_BIT_MESA) { + _eglError(EGL_BAD_SURFACE, "eglShowSurfaceMESA"); + return EGL_FALSE; + } + if (surf->Width < mode->Width || surf->Height < mode->Height) { + _eglError(EGL_BAD_SURFACE, + "eglShowSurfaceMESA(surface smaller than screen size)"); + return EGL_FALSE; + } + + scrn->CurrentSurface = surf; + scrn->CurrentMode = mode; + } + return EGL_TRUE; +} + + +/** + * Set a screen's current display mode. + * Note: mode = EGL_NO_MODE is valid (turns off the screen) + * + * This is just a placeholder function; drivers will always override + * this with code that _really_ sets the mode. + */ +EGLBoolean +_eglScreenModeMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, + _EGLMode *m) +{ + scrn->CurrentMode = m; + return EGL_TRUE; +} + + +/** + * Set a screen's surface origin. + */ +EGLBoolean +_eglScreenPositionMESA(_EGLDriver *drv, _EGLDisplay *dpy, + _EGLScreen *scrn, EGLint x, EGLint y) +{ + scrn->OriginX = x; + scrn->OriginY = y; + + return EGL_TRUE; +} + + +/** + * Query a screen's current surface. + */ +EGLBoolean +_eglQueryScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy, + _EGLScreen *scrn, _EGLSurface **surf) +{ + *surf = scrn->CurrentSurface; + return EGL_TRUE; +} + + +/** + * Query a screen's current mode. + */ +EGLBoolean +_eglQueryScreenModeMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, + _EGLMode **m) +{ + *m = scrn->CurrentMode; + return EGL_TRUE; +} + + +EGLBoolean +_eglQueryScreenMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, + EGLint attribute, EGLint *value) +{ + switch (attribute) { + case EGL_SCREEN_POSITION_MESA: + value[0] = scrn->OriginX; + value[1] = scrn->OriginY; + break; + case EGL_SCREEN_POSITION_GRANULARITY_MESA: + value[0] = scrn->StepX; + value[1] = scrn->StepY; + break; + default: + _eglError(EGL_BAD_ATTRIBUTE, "eglQueryScreenMESA"); + return EGL_FALSE; + } + + return EGL_TRUE; +} + + +/** + * Delete the modes associated with given screen. + */ +void +_eglDestroyScreenModes(_EGLScreen *scrn) +{ + EGLint i; + for (i = 0; i < scrn->NumModes; i++) { + if (scrn->Modes[i].Name) + free((char *) scrn->Modes[i].Name); /* cast away const */ + } + if (scrn->Modes) + free(scrn->Modes); + scrn->Modes = NULL; + scrn->NumModes = 0; +} + + +/** + * Default fallback routine - drivers should usually override this. + */ +void +_eglDestroyScreen(_EGLScreen *scrn) +{ + _eglDestroyScreenModes(scrn); + free(scrn); +} + diff --git a/src/egl/main/eglscreen.h b/src/egl/main/eglscreen.h new file mode 100644 index 0000000000..0fd71f71fc --- /dev/null +++ b/src/egl/main/eglscreen.h @@ -0,0 +1,89 @@ +#ifndef EGLSCREEN_INCLUDED +#define EGLSCREEN_INCLUDED + + +#include "egltypedefs.h" + + +/** + * Per-screen information. + * Note that an EGL screen doesn't have a size. A screen may be set to + * one of several display modes (width/height/scanrate). The screen + * then displays a drawing surface. The drawing surface must be at least + * as large as the display mode's resolution. If it's larger, the + * OriginX and OriginY fields control what part of the surface is visible + * on the screen. + */ +struct _egl_screen +{ + EGLScreenMESA Handle; /* The public/opaque handle which names this object */ + + _EGLMode *CurrentMode; + _EGLSurface *CurrentSurface; + + EGLint OriginX, OriginY; /**< Origin of scan-out region w.r.t. surface */ + EGLint StepX, StepY; /**< Screen position/origin granularity */ + + EGLint NumModes; + _EGLMode *Modes; /**< array [NumModes] */ +}; + + +PUBLIC void +_eglInitScreen(_EGLScreen *screen); + + +extern _EGLScreen * +_eglLookupScreen(EGLScreenMESA screen, _EGLDisplay *dpy); + + +PUBLIC void +_eglAddScreen(_EGLDisplay *display, _EGLScreen *screen); + + +extern EGLBoolean +_eglGetScreensMESA(_EGLDriver *drv, _EGLDisplay *dpy, EGLScreenMESA *screens, EGLint max_screens, EGLint *num_screens); + + +extern _EGLSurface * +_eglCreateScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, const EGLint *attrib_list); + + +extern EGLBoolean +_eglShowScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, _EGLSurface *surf, _EGLMode *m); + + +extern EGLBoolean +_eglScreenModeMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, _EGLMode *m); + + +extern EGLBoolean +_eglScreenPositionMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, EGLint x, EGLint y); + + +extern EGLBoolean +_eglQueryDisplayMESA(_EGLDriver *drv, _EGLDisplay *dpy, EGLint attribute, EGLint *value); + + +extern EGLBoolean +_eglQueryScreenSurfaceMESA(_EGLDriver *drv, _EGLDisplay *dpy, + _EGLScreen *scrn, _EGLSurface **surface); + + +extern EGLBoolean +_eglQueryScreenModeMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, _EGLMode **m); + + +extern EGLBoolean +_eglQueryScreenMESA(_EGLDriver *drv, _EGLDisplay *dpy, _EGLScreen *scrn, EGLint attribute, EGLint *value); + + +extern void +_eglDestroyScreenModes(_EGLScreen *scrn); + + +PUBLIC void +_eglDestroyScreen(_EGLScreen *scrn); + + +#endif /* EGLSCREEN_INCLUDED */ diff --git a/src/egl/main/eglstring.c b/src/egl/main/eglstring.c new file mode 100644 index 0000000000..e4ab19136f --- /dev/null +++ b/src/egl/main/eglstring.c @@ -0,0 +1,24 @@ +/** + * String utils. + */ + +#include <stdlib.h> +#include <string.h> +#include "eglstring.h" + + +char * +_eglstrdup(const char *s) +{ + if (s) { + size_t l = strlen(s); + char *s2 = malloc(l + 1); + if (s2) + strcpy(s2, s); + return s2; + } + return NULL; +} + + + diff --git a/src/egl/main/eglstring.h b/src/egl/main/eglstring.h new file mode 100644 index 0000000000..f1d559b24a --- /dev/null +++ b/src/egl/main/eglstring.h @@ -0,0 +1,18 @@ +#ifndef EGLSTRING_INCLUDED +#define EGLSTRING_INCLUDED + +#include <string.h> + +#ifdef _EGL_OS_WINDOWS +#define _eglstrcasecmp _stricmp +#define _eglsnprintf _snprintf +#else +#define _eglstrcasecmp strcasecmp +#define _eglsnprintf snprintf +#endif + +extern char * +_eglstrdup(const char *s); + + +#endif /* EGLSTRING_INCLUDED */ diff --git a/src/egl/main/eglsurface.c b/src/egl/main/eglsurface.c new file mode 100644 index 0000000000..d46bdb0672 --- /dev/null +++ b/src/egl/main/eglsurface.c @@ -0,0 +1,556 @@ +/** + * Surface-related functions. + */ + + +#include <assert.h> +#include <stdlib.h> +#include <string.h> +#include "egldisplay.h" +#include "eglcontext.h" +#include "eglconfig.h" +#include "eglcurrent.h" +#include "egllog.h" +#include "eglsurface.h" + + +static void +_eglClampSwapInterval(_EGLSurface *surf, EGLint interval) +{ + EGLint bound = GET_CONFIG_ATTRIB(surf->Config, EGL_MAX_SWAP_INTERVAL); + if (interval >= bound) { + interval = bound; + } + else { + bound = GET_CONFIG_ATTRIB(surf->Config, EGL_MIN_SWAP_INTERVAL); + if (interval < bound) + interval = bound; + } + surf->SwapInterval = interval; +} + + +/** + * Parse the list of surface attributes and return the proper error code. + */ +static EGLint +_eglParseSurfaceAttribList(_EGLSurface *surf, const EGLint *attrib_list) +{ + _EGLDisplay *dpy = surf->Resource.Display; + EGLint type = surf->Type; + EGLint texture_type = EGL_PBUFFER_BIT; + EGLint i, err = EGL_SUCCESS; + + if (!attrib_list) + return EGL_SUCCESS; + + if (dpy->Extensions.NOK_texture_from_pixmap) + texture_type |= EGL_PIXMAP_BIT; + + for (i = 0; attrib_list[i] != EGL_NONE; i++) { + EGLint attr = attrib_list[i++]; + EGLint val = attrib_list[i]; + + switch (attr) { + /* common (except for screen surfaces) attributes */ + case EGL_VG_COLORSPACE: + if (type == EGL_SCREEN_BIT_MESA) { + err = EGL_BAD_ATTRIBUTE; + break; + } + switch (val) { + case EGL_VG_COLORSPACE_sRGB: + case EGL_VG_COLORSPACE_LINEAR: + break; + default: + err = EGL_BAD_ATTRIBUTE; + break; + } + if (err != EGL_SUCCESS) + break; + surf->VGColorspace = val; + break; + case EGL_VG_ALPHA_FORMAT: + if (type == EGL_SCREEN_BIT_MESA) { + err = EGL_BAD_ATTRIBUTE; + break; + } + switch (val) { + case EGL_VG_ALPHA_FORMAT_NONPRE: + case EGL_VG_ALPHA_FORMAT_PRE: + break; + default: + err = EGL_BAD_ATTRIBUTE; + break; + } + if (err != EGL_SUCCESS) + break; + surf->VGAlphaFormat = val; + break; + /* window surface attributes */ + case EGL_RENDER_BUFFER: + if (type != EGL_WINDOW_BIT) { + err = EGL_BAD_ATTRIBUTE; + break; + } + if (val != EGL_BACK_BUFFER && val != EGL_SINGLE_BUFFER) { + err = EGL_BAD_ATTRIBUTE; + break; + } + surf->RenderBuffer = val; + break; + /* pbuffer surface attributes */ + case EGL_WIDTH: + if (type != EGL_PBUFFER_BIT && type != EGL_SCREEN_BIT_MESA) { + err = EGL_BAD_ATTRIBUTE; + break; + } + if (val < 0) { + err = EGL_BAD_PARAMETER; + break; + } + surf->Width = val; + break; + case EGL_HEIGHT: + if (type != EGL_PBUFFER_BIT && type != EGL_SCREEN_BIT_MESA) { + err = EGL_BAD_ATTRIBUTE; + break; + } + if (val < 0) { + err = EGL_BAD_PARAMETER; + break; + } + surf->Height = val; + break; + case EGL_LARGEST_PBUFFER: + if (type != EGL_PBUFFER_BIT) { + err = EGL_BAD_ATTRIBUTE; + break; + } + surf->LargestPbuffer = !!val; + break; + case EGL_TEXTURE_FORMAT: + if (!(type & texture_type)) { + err = EGL_BAD_ATTRIBUTE; + break; + } + switch (val) { + case EGL_TEXTURE_RGB: + case EGL_TEXTURE_RGBA: + case EGL_NO_TEXTURE: + break; + default: + err = EGL_BAD_ATTRIBUTE; + break; + } + if (err != EGL_SUCCESS) + break; + surf->TextureFormat = val; + break; + case EGL_TEXTURE_TARGET: + if (!(type & texture_type)) { + err = EGL_BAD_ATTRIBUTE; + break; + } + switch (val) { + case EGL_TEXTURE_2D: + case EGL_NO_TEXTURE: + break; + default: + err = EGL_BAD_ATTRIBUTE; + break; + } + if (err != EGL_SUCCESS) + break; + surf->TextureTarget = val; + break; + case EGL_MIPMAP_TEXTURE: + if (!(type & texture_type)) { + err = EGL_BAD_ATTRIBUTE; + break; + } + surf->MipmapTexture = !!val; + break; + /* no pixmap surface specific attributes */ + default: + err = EGL_BAD_ATTRIBUTE; + break; + } + + if (err != EGL_SUCCESS) { + _eglLog(_EGL_WARNING, "bad surface attribute 0x%04x", attr); + break; + } + } + + return err; +} + + +/** + * Do error check on parameters and initialize the given _EGLSurface object. + * \return EGL_TRUE if no errors, EGL_FALSE otherwise. + */ +EGLBoolean +_eglInitSurface(_EGLSurface *surf, _EGLDisplay *dpy, EGLint type, + _EGLConfig *conf, const EGLint *attrib_list) +{ + const char *func; + EGLint renderBuffer = EGL_BACK_BUFFER; + EGLint err; + + switch (type) { + case EGL_WINDOW_BIT: + func = "eglCreateWindowSurface"; + break; + case EGL_PIXMAP_BIT: + func = "eglCreatePixmapSurface"; + renderBuffer = EGL_SINGLE_BUFFER; + break; + case EGL_PBUFFER_BIT: + func = "eglCreatePBufferSurface"; + break; + case EGL_SCREEN_BIT_MESA: + func = "eglCreateScreenSurface"; + renderBuffer = EGL_SINGLE_BUFFER; /* XXX correct? */ + break; + default: + _eglLog(_EGL_WARNING, "Bad type in _eglInitSurface"); + return EGL_FALSE; + } + + if ((GET_CONFIG_ATTRIB(conf, EGL_SURFACE_TYPE) & type) == 0) { + /* The config can't be used to create a surface of this type */ + _eglError(EGL_BAD_CONFIG, func); + return EGL_FALSE; + } + + memset(surf, 0, sizeof(_EGLSurface)); + surf->Resource.Display = dpy; + surf->Type = type; + surf->Config = conf; + + surf->Width = 0; + surf->Height = 0; + surf->TextureFormat = EGL_NO_TEXTURE; + surf->TextureTarget = EGL_NO_TEXTURE; + surf->MipmapTexture = EGL_FALSE; + surf->LargestPbuffer = EGL_FALSE; + surf->RenderBuffer = renderBuffer; + surf->VGAlphaFormat = EGL_VG_ALPHA_FORMAT_NONPRE; + surf->VGColorspace = EGL_VG_COLORSPACE_sRGB; + + surf->MipmapLevel = 0; + surf->MultisampleResolve = EGL_MULTISAMPLE_RESOLVE_DEFAULT; + surf->SwapBehavior = EGL_BUFFER_DESTROYED; + + surf->HorizontalResolution = EGL_UNKNOWN; + surf->VerticalResolution = EGL_UNKNOWN; + surf->AspectRatio = EGL_UNKNOWN; + + /* the default swap interval is 1 */ + _eglClampSwapInterval(surf, 1); + + err = _eglParseSurfaceAttribList(surf, attrib_list); + if (err != EGL_SUCCESS) + return _eglError(err, func); + + return EGL_TRUE; +} + + +EGLBoolean +_eglSwapBuffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf) +{ + /* Drivers have to do the actual buffer swap. */ + return EGL_TRUE; +} + + +EGLBoolean +_eglCopyBuffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, + EGLNativePixmapType target) +{ + /* copy surface to native pixmap */ + /* All implementation burdon for this is in the device driver */ + return EGL_FALSE; +} + + +EGLBoolean +_eglQuerySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface, + EGLint attribute, EGLint *value) +{ + switch (attribute) { + case EGL_WIDTH: + *value = surface->Width; + break; + case EGL_HEIGHT: + *value = surface->Height; + break; + case EGL_CONFIG_ID: + *value = GET_CONFIG_ATTRIB(surface->Config, EGL_CONFIG_ID); + break; + case EGL_LARGEST_PBUFFER: + *value = surface->LargestPbuffer; + break; + case EGL_TEXTURE_FORMAT: + /* texture attributes: only for pbuffers, no error otherwise */ + if (surface->Type == EGL_PBUFFER_BIT) + *value = surface->TextureFormat; + break; + case EGL_TEXTURE_TARGET: + if (surface->Type == EGL_PBUFFER_BIT) + *value = surface->TextureTarget; + break; + case EGL_MIPMAP_TEXTURE: + if (surface->Type == EGL_PBUFFER_BIT) + *value = surface->MipmapTexture; + break; + case EGL_MIPMAP_LEVEL: + if (surface->Type == EGL_PBUFFER_BIT) + *value = surface->MipmapLevel; + break; + case EGL_SWAP_BEHAVIOR: + *value = surface->SwapBehavior; + break; + case EGL_RENDER_BUFFER: + *value = surface->RenderBuffer; + break; + case EGL_PIXEL_ASPECT_RATIO: + *value = surface->AspectRatio; + break; + case EGL_HORIZONTAL_RESOLUTION: + *value = surface->HorizontalResolution; + break; + case EGL_VERTICAL_RESOLUTION: + *value = surface->VerticalResolution; + break; + case EGL_MULTISAMPLE_RESOLVE: + *value = surface->MultisampleResolve; + break; + case EGL_VG_ALPHA_FORMAT: + *value = surface->VGAlphaFormat; + break; + case EGL_VG_COLORSPACE: + *value = surface->VGColorspace; + break; + default: + _eglError(EGL_BAD_ATTRIBUTE, "eglQuerySurface"); + return EGL_FALSE; + } + + return EGL_TRUE; +} + + +/** + * Drivers should do a proper implementation. + */ +_EGLSurface * +_eglCreateWindowSurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, + EGLNativeWindowType window, const EGLint *attrib_list) +{ + return NULL; +} + + +/** + * Drivers should do a proper implementation. + */ +_EGLSurface * +_eglCreatePixmapSurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, + EGLNativePixmapType pixmap, const EGLint *attrib_list) +{ + return NULL; +} + + +/** + * Drivers should do a proper implementation. + */ +_EGLSurface * +_eglCreatePbufferSurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, + const EGLint *attrib_list) +{ + return NULL; +} + + +/** + * Default fallback routine - drivers should usually override this. + */ +EGLBoolean +_eglDestroySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf) +{ + if (!_eglIsSurfaceBound(surf)) + free(surf); + return EGL_TRUE; +} + + +/** + * Default fallback routine - drivers might override this. + */ +EGLBoolean +_eglSurfaceAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface, + EGLint attribute, EGLint value) +{ + EGLint confval; + EGLint err = EGL_SUCCESS; + + switch (attribute) { + case EGL_MIPMAP_LEVEL: + confval = GET_CONFIG_ATTRIB(surface->Config, EGL_RENDERABLE_TYPE); + if (!(confval & (EGL_OPENGL_ES_BIT | EGL_OPENGL_ES2_BIT))) { + err = EGL_BAD_PARAMETER; + break; + } + surface->MipmapLevel = value; + break; + case EGL_MULTISAMPLE_RESOLVE: + switch (value) { + case EGL_MULTISAMPLE_RESOLVE_DEFAULT: + break; + case EGL_MULTISAMPLE_RESOLVE_BOX: + confval = GET_CONFIG_ATTRIB(surface->Config, EGL_SURFACE_TYPE); + if (!(confval & EGL_MULTISAMPLE_RESOLVE_BOX_BIT)) + err = EGL_BAD_MATCH; + break; + default: + err = EGL_BAD_ATTRIBUTE; + break; + } + if (err != EGL_SUCCESS) + break; + surface->MultisampleResolve = value; + break; + case EGL_SWAP_BEHAVIOR: + switch (value) { + case EGL_BUFFER_DESTROYED: + break; + case EGL_BUFFER_PRESERVED: + confval = GET_CONFIG_ATTRIB(surface->Config, EGL_SURFACE_TYPE); + if (!(confval & EGL_SWAP_BEHAVIOR_PRESERVED_BIT)) + err = EGL_BAD_MATCH; + break; + default: + err = EGL_BAD_ATTRIBUTE; + break; + } + if (err != EGL_SUCCESS) + break; + surface->SwapBehavior = value; + break; + default: + err = EGL_BAD_ATTRIBUTE; + break; + } + + if (err != EGL_SUCCESS) + return _eglError(err, "eglSurfaceAttrib"); + return EGL_TRUE; +} + + +EGLBoolean +_eglBindTexImage(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface, + EGLint buffer) +{ + EGLint texture_type = EGL_PBUFFER_BIT; + + /* Just do basic error checking and return success/fail. + * Drivers must implement the real stuff. + */ + + if (dpy->Extensions.NOK_texture_from_pixmap) + texture_type |= EGL_PIXMAP_BIT; + + if (!(surface->Type & texture_type)) { + _eglError(EGL_BAD_SURFACE, "eglBindTexImage"); + return EGL_FALSE; + } + + if (surface->TextureFormat == EGL_NO_TEXTURE) { + _eglError(EGL_BAD_MATCH, "eglBindTexImage"); + return EGL_FALSE; + } + + if (surface->TextureTarget == EGL_NO_TEXTURE) { + _eglError(EGL_BAD_MATCH, "eglBindTexImage"); + return EGL_FALSE; + } + + if (buffer != EGL_BACK_BUFFER) { + _eglError(EGL_BAD_PARAMETER, "eglBindTexImage"); + return EGL_FALSE; + } + + surface->BoundToTexture = EGL_TRUE; + + return EGL_TRUE; +} + + +EGLBoolean +_eglReleaseTexImage(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface, + EGLint buffer) +{ + /* Just do basic error checking and return success/fail. + * Drivers must implement the real stuff. + */ + + if (surface->Type != EGL_PBUFFER_BIT) { + _eglError(EGL_BAD_SURFACE, "eglBindTexImage"); + return EGL_FALSE; + } + + if (surface->TextureFormat == EGL_NO_TEXTURE) { + _eglError(EGL_BAD_MATCH, "eglBindTexImage"); + return EGL_FALSE; + } + + if (buffer != EGL_BACK_BUFFER) { + _eglError(EGL_BAD_PARAMETER, "eglReleaseTexImage"); + return EGL_FALSE; + } + + if (!surface->BoundToTexture) { + _eglError(EGL_BAD_SURFACE, "eglReleaseTexImage"); + return EGL_FALSE; + } + + surface->BoundToTexture = EGL_FALSE; + + return EGL_TRUE; +} + + +EGLBoolean +_eglSwapInterval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, + EGLint interval) +{ + _eglClampSwapInterval(surf, interval); + return EGL_TRUE; +} + + +#ifdef EGL_VERSION_1_2 + +/** + * Example function - drivers should do a proper implementation. + */ +_EGLSurface * +_eglCreatePbufferFromClientBuffer(_EGLDriver *drv, _EGLDisplay *dpy, + EGLenum buftype, EGLClientBuffer buffer, + _EGLConfig *conf, const EGLint *attrib_list) +{ + if (buftype != EGL_OPENVG_IMAGE) { + _eglError(EGL_BAD_PARAMETER, "eglCreatePbufferFromClientBuffer"); + return NULL; + } + + return NULL; +} + +#endif /* EGL_VERSION_1_2 */ diff --git a/src/egl/main/eglsurface.h b/src/egl/main/eglsurface.h new file mode 100644 index 0000000000..8f520dcdf6 --- /dev/null +++ b/src/egl/main/eglsurface.h @@ -0,0 +1,184 @@ +#ifndef EGLSURFACE_INCLUDED +#define EGLSURFACE_INCLUDED + + +#include "egltypedefs.h" +#include "egldisplay.h" + + +/** + * "Base" class for device driver surfaces. + */ +struct _egl_surface +{ + /* A surface is a display resource */ + _EGLResource Resource; + + /* The context that is currently bound to the surface */ + _EGLContext *CurrentContext; + + _EGLConfig *Config; + + EGLint Type; /* one of EGL_WINDOW_BIT, EGL_PIXMAP_BIT or EGL_PBUFFER_BIT */ + + /* attributes set by attribute list */ + EGLint Width, Height; + EGLenum TextureFormat; + EGLenum TextureTarget; + EGLBoolean MipmapTexture; + EGLBoolean LargestPbuffer; + EGLenum RenderBuffer; + EGLenum VGAlphaFormat; + EGLenum VGColorspace; + + /* attributes set by eglSurfaceAttrib */ + EGLint MipmapLevel; + EGLenum MultisampleResolve; + EGLenum SwapBehavior; + + EGLint HorizontalResolution, VerticalResolution; + EGLint AspectRatio; + + EGLint SwapInterval; + + /* True if the surface is bound to an OpenGL ES texture */ + EGLBoolean BoundToTexture; +}; + + +PUBLIC EGLBoolean +_eglInitSurface(_EGLSurface *surf, _EGLDisplay *dpy, EGLint type, + _EGLConfig *config, const EGLint *attrib_list); + + +extern EGLBoolean +_eglSwapBuffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf); + + +extern EGLBoolean +_eglCopyBuffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLNativePixmapType target); + + +extern EGLBoolean +_eglQuerySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint attribute, EGLint *value); + + +extern _EGLSurface * +_eglCreateWindowSurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, EGLNativeWindowType window, const EGLint *attrib_list); + + +extern _EGLSurface * +_eglCreatePixmapSurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, EGLNativePixmapType pixmap, const EGLint *attrib_list); + + +extern _EGLSurface * +_eglCreatePbufferSurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, const EGLint *attrib_list); + + +extern EGLBoolean +_eglDestroySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf); + + +extern EGLBoolean +_eglSurfaceAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint attribute, EGLint value); + + +PUBLIC extern EGLBoolean +_eglBindTexImage(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint buffer); + + +extern EGLBoolean +_eglReleaseTexImage(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint buffer); + + +extern EGLBoolean +_eglSwapInterval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint interval); + + +#ifdef EGL_VERSION_1_2 + +extern _EGLSurface * +_eglCreatePbufferFromClientBuffer(_EGLDriver *drv, _EGLDisplay *dpy, + EGLenum buftype, EGLClientBuffer buffer, + _EGLConfig *conf, const EGLint *attrib_list); + +#endif /* EGL_VERSION_1_2 */ + + +/** + * Return true if there is a context bound to the surface. + * + * The binding is considered a reference to the surface. Drivers should not + * destroy a surface when it is bound. + */ +static INLINE EGLBoolean +_eglIsSurfaceBound(_EGLSurface *surf) +{ + return (surf->CurrentContext != NULL); +} + + +/** + * Link a surface to a display and return the handle of the link. + * The handle can be passed to client directly. + */ +static INLINE EGLSurface +_eglLinkSurface(_EGLSurface *surf, _EGLDisplay *dpy) +{ + _eglLinkResource(&surf->Resource, _EGL_RESOURCE_SURFACE, dpy); + return (EGLSurface) surf; +} + + +/** + * Unlink a linked surface from its display. + * Accessing an unlinked surface should generate EGL_BAD_SURFACE error. + */ +static INLINE void +_eglUnlinkSurface(_EGLSurface *surf) +{ + _eglUnlinkResource(&surf->Resource, _EGL_RESOURCE_SURFACE); +} + + +/** + * Lookup a handle to find the linked surface. + * Return NULL if the handle has no corresponding linked surface. + */ +static INLINE _EGLSurface * +_eglLookupSurface(EGLSurface surface, _EGLDisplay *dpy) +{ + _EGLSurface *surf = (_EGLSurface *) surface; + if (!dpy || !_eglCheckResource((void *) surf, _EGL_RESOURCE_SURFACE, dpy)) + surf = NULL; + return surf; +} + + +/** + * Return the handle of a linked surface, or EGL_NO_SURFACE. + */ +static INLINE EGLSurface +_eglGetSurfaceHandle(_EGLSurface *surf) +{ + _EGLResource *res = (_EGLResource *) surf; + return (res && _eglIsResourceLinked(res)) ? + (EGLSurface) surf : EGL_NO_SURFACE; +} + + +/** + * Return true if the surface is linked to a display. + * + * The link is considered a reference to the surface (the display is owning the + * surface). Drivers should not destroy a surface when it is linked. + */ +static INLINE EGLBoolean +_eglIsSurfaceLinked(_EGLSurface *surf) +{ + _EGLResource *res = (_EGLResource *) surf; + return (res && _eglIsResourceLinked(res)); +} + + +#endif /* EGLSURFACE_INCLUDED */ diff --git a/src/egl/main/egltypedefs.h b/src/egl/main/egltypedefs.h new file mode 100644 index 0000000000..166b133909 --- /dev/null +++ b/src/egl/main/egltypedefs.h @@ -0,0 +1,35 @@ +#ifndef EGLTYPEDEFS_INCLUDED +#define EGLTYPEDEFS_INCLUDED + +#define EGL_EGLEXT_PROTOTYPES + +#include <EGL/egl.h> +#include <EGL/eglext.h> + +#include "eglcompiler.h" + +typedef struct _egl_api _EGLAPI; + +typedef struct _egl_config _EGLConfig; + +typedef struct _egl_context _EGLContext; + +typedef struct _egl_display _EGLDisplay; + +typedef struct _egl_driver _EGLDriver; + +typedef struct _egl_extensions _EGLExtensions; + +typedef struct _egl_image _EGLImage; + +typedef struct _egl_mode _EGLMode; + +typedef struct _egl_resource _EGLResource; + +typedef struct _egl_screen _EGLScreen; + +typedef struct _egl_surface _EGLSurface; + +typedef struct _egl_thread_info _EGLThreadInfo; + +#endif /* EGLTYPEDEFS_INCLUDED */ |