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Diffstat (limited to 'include')
| -rw-r--r-- | include/GL/internal/dri_interface.h | 499 |
1 files changed, 499 insertions, 0 deletions
diff --git a/include/GL/internal/dri_interface.h b/include/GL/internal/dri_interface.h new file mode 100644 index 0000000000..1f1917d0bf --- /dev/null +++ b/include/GL/internal/dri_interface.h @@ -0,0 +1,499 @@ +/* + * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. + * (C) Copyright IBM Corporation 2004 + * 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 + * on 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 + * THE COPYRIGHT HOLDERS AND/OR THEIR 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. + */ + +/** + * \file dri_interface.h + * + * This file contains all the types and functions that define the interface + * between a DRI driver and driver loader. Currently, the most common driver + * loader is the XFree86 libGL.so. However, other loaders do exist, and in + * the future the server-side libglx.a will also be a loader. + * + * \author Kevin E. Martin <kevin@precisioninsight.com> + * \author Ian Romanick <idr@us.ibm.com> + */ + +/* FIXME: With a small amount of work, these two includes can be removed. */ +#include <X11/Xlib.h> +#include <GL/glx.h> + +#ifndef DRI_NEW_INTERFACE_ONLY +#include <GL/glxint.h> +#endif + +#include <GL/internal/glcore.h> +#include <xf86drm.h> + +/** + * \name DRI interface structures + * + * The following structures define the interface between the GLX client + * side library and the DRI (direct rendering infrastructure). + */ +/*@{*/ +typedef struct __DRIdisplayRec __DRIdisplay; +typedef struct __DRIscreenRec __DRIscreen; +typedef struct __DRIcontextRec __DRIcontext; +typedef struct __DRIdrawableRec __DRIdrawable; +typedef struct __DRIdriverRec __DRIdriver; +typedef struct __DRIframebufferRec __DRIframebuffer; +typedef struct __DRIversionRec __DRIversion; +typedef unsigned long __DRIid; +struct _XF86DRIClipRect; +/*@}*/ + + +/** + * \name Functions provided by the driver loader. + */ +/*@{*/ +extern __DRIscreen *__glXFindDRIScreen(Display *dpy, int scrn); + + +/** + * Type of a pointer to \c __glXGetInternalVersion, as returned by + * \c glXGetProcAddress. + * + * \sa __glXGetInternalVersion, glXGetProcAddress + */ +typedef int (* PFNGLXGETINTERNALVERSIONPROC) ( void ); + +/** + * Type of a pointer to \c __glXWindowExists, as returned by + * \c glXGetProcAddress. + * + * \sa __glXWindowExists, glXGetProcAddress + */ +typedef Bool (* PFNGLXWINDOWEXISTSPROC) (Display *dpy, GLXDrawable draw); + +/** + * Type of a pointer to \c __glXGetUST, as returned by \c glXGetProcAddress. + * + * \sa __glXGetUST, glXGetProcAddress + */ +typedef int (* PFNGLXGETUSTPROC) ( int64_t * ust ); + +/** + * Type of pointer to \c __glXCreateContextModes, as returned by + * \c glXGetProcAddress. + * + * \sa _gl_context_modes_create, glXGetProcAddress + */ + +typedef __GLcontextModes * (* PFNGLXCREATECONTEXTMODES) ( unsigned count, + size_t minimum_bytes_per_struct ); + +/** + * Type of a pointer to \c glXGetScreenDriver, as returned by + * \c glXGetProcAddress. This function is used to get the name of the DRI + * driver for the specified screen of the specified display. The driver + * name is typically used with \c glXGetDriverConfig. + * + * \sa glXGetScreenDriver, glXGetProcAddress, glXGetDriverConfig + */ +typedef const char * (* PFNGLXGETSCREENDRIVERPROC) (Display *dpy, int scrNum); + +/** + * Type of a pointer to \c glXGetDriverConfig, as returned by + * \c glXGetProcAddress. This function is used to get the XML document + * describing the configuration options available for the specified driver. + * + * \sa glXGetDriverConfig, glXGetProcAddress, glXGetScreenDriver + */ +typedef const char * (* PFNGLXGETDRIVERCONFIGPROC) (const char *driverName); + +/** + * Type of a pointer to \c __glXScrEnableExtension, as returned by + * \c glXGetProcAddress. This function is used to enable a GLX extension + * on the specified screen. + * + * \sa __glXScrEnableExtension, glXGetProcAddress + */ +typedef void (* PFNGLXSCRENABLEEXTENSIONPROC) ( void *psc, const char * name ); + +/** + * Type of a pointer to \c __glXGetDrawableInfo, as returned by + * \c glXGetProcAddress. This function is used to get information about the + * position, size, and clip rects of a drawable. + * + * \sa __glXGetDrawableInfo, glXGetProcAddress + */ +typedef Bool (* PFNGLXGETDRAWABLEINFOPROC) ( Display *dpy, int scrn, + Drawable draw, unsigned int * index, unsigned int * stamp, + int * x, int * y, int * width, int * height, + int * numClipRects, struct _XF86DRIClipRect ** pClipRects, + int * backX, int * backY, + int * numBackClipRects, struct _XF86DRIClipRect ** pBackClipRects ); +/*@}*/ + + +/** + * \name Functions and data provided by the driver. + */ +/*@{*/ + +extern void * __driCreateNewScreen( Display *dpy, int scrn, __DRIscreen *psc, + const __GLcontextModes * modes, const __DRIversion * ddx_version, + const __DRIversion * dri_version, const __DRIversion * drm_version, + const __DRIframebuffer * frame_buffer, drmAddress pSAREA, int fd, + int internal_api_version, __GLcontextModes ** driver_modes ); + +#ifndef DRI_NEW_INTERFACE_ONLY + +extern void *__driCreateScreen(Display *dpy, int scrn, __DRIscreen *psc, + int numConfigs, __GLXvisualConfig *config); + +/** This is optionally implemented in each driver */ +extern void __driRegisterExtensions( void ); + +#endif /* DRI_NEW_INTERFACE_ONLY */ + + +/** + * XML document describing the configuration options supported by the + * driver. + */ +extern const char __driConfigOptions[]; + +/*@}*/ + + +/** + * Stored version of some component (i.e., server-side DRI module, kernel-side + * DRM, etc.). + * + * \todo + * There are several data structures that explicitly store a major version, + * minor version, and patch level. These structures should be modified to + * have a \c __DRIversionRec instead. + */ +struct __DRIversionRec { + int major; /**< Major version number. */ + int minor; /**< Minor version number. */ + int patch; /**< Patch-level. */ +}; + +/** + * Framebuffer information record. Used by libGL to communicate information + * about the framebuffer to the driver's \c __driCreateNewScreen function. + * + * In XFree86, most of this information is derrived from data returned by + * calling \c XF86DRIGetDeviceInfo. + * + * \sa XF86DRIGetDeviceInfo __DRIdisplayRec::createNewScreen + * __driUtilCreateNewScreen CallCreateNewScreen + * + * \bug This structure could be better named. + */ +struct __DRIframebufferRec { + unsigned char *base; /**< Framebuffer base address in the CPU's + * address space. This value is calculated by + * calling \c drmMap on the framebuffer handle + * returned by \c XF86DRIGetDeviceInfo (or a + * similar function). + */ + int size; /**< Framebuffer size, in bytes. */ + int stride; /**< Number of bytes from one line to the next. */ + int width; /**< Pixel width of the framebuffer. */ + int height; /**< Pixel height of the framebuffer. */ + int dev_priv_size; /**< Size of the driver's dev-priv structure. */ + void *dev_priv; /**< Pointer to the driver's dev-priv structure. */ +}; + + +/** + * Screen dependent methods. This structure is initialized during the + * \c __DRIdisplayRec::createScreen call. + */ +struct __DRIscreenRec { + /** + * Method to destroy the private DRI screen data. + */ + void (*destroyScreen)(Display *dpy, int scrn, void *screenPrivate); + + /** + * Method to create the private DRI context data and initialize the + * context dependent methods. + * + * \sa __DRIscreenRec::createNewContext driCreateContext + * driCreateNewContext + * + * \deprecated + * This function has been replaced by \c __DRIscreenRec::createNewContext. + * New drivers will continue to export this method, but it will eventually + * (in the next XFree86 major relearse) go away. + */ +#ifndef DRI_NEW_INTERFACE_ONLY + void *(*createContext)(Display *dpy, XVisualInfo *vis, void *sharedPrivate, + __DRIcontext *pctx); +#else + void * createContext; +#endif /* DRI_NEW_INTERFACE_ONLY */ + + /** + * Method to create the private DRI drawable data and initialize the + * drawable dependent methods. + */ + void *(*createNewDrawable)(Display *dpy, const __GLcontextModes *modes, + GLXDrawable draw, __DRIdrawable *pdraw, + int renderType, const int *attrs); + + /** + * Method to return a pointer to the DRI drawable data. + */ + __DRIdrawable *(*getDrawable)(Display *dpy, GLXDrawable draw, + void *drawablePrivate); + + /** + * Opaque pointer to private per screen direct rendering data. \c NULL + * if direct rendering is not supported on this screen. Never + * dereferenced in libGL. + */ + void *private; + + /** + * Get the number of vertical refreshes since some point in time before + * this function was first called (i.e., system start up). + * + * \since Internal API version 20030317. + */ + int (*getMSC)( void *screenPrivate, int64_t *msc ); + + /** + * Opaque pointer that points back to the containing + * \c __GLXscreenConfigs. This data structure is shared with DRI drivers + * but \c __GLXscreenConfigs is not. However, they are needed by some GLX + * functions called by DRI drivers. + * + * \since Internal API version 20030813. + */ + void *screenConfigs; + + /** + * Functions associated with MESA_allocate_memory. + * + * \since Internal API version 20030815. + */ + /*@{*/ + void *(*allocateMemory)(Display *dpy, int scrn, GLsizei size, + GLfloat readfreq, GLfloat writefreq, + GLfloat priority); + + void (*freeMemory)(Display *dpy, int scrn, GLvoid *pointer); + + GLuint (*memoryOffset)(Display *dpy, int scrn, const GLvoid *pointer); + /*@}*/ + + /** + * Method to create the private DRI context data and initialize the + * context dependent methods. + * + * \since Internal API version 20031201. + */ + void * (*createNewContext)(Display *dpy, const __GLcontextModes *modes, + int render_type, + void *sharedPrivate, __DRIcontext *pctx); +}; + +/** + * Context dependent methods. This structure is initialized during the + * \c __DRIscreenRec::createContext call. + */ +struct __DRIcontextRec { + /** + * Method to destroy the private DRI context data. + */ + void (*destroyContext)(Display *dpy, int scrn, void *contextPrivate); + + /** + * Method to bind a DRI drawable to a DRI graphics context. + * + * \deprecated Replaced by bindContext3. + */ +#ifndef DRI_NEW_INTERFACE_ONLY + Bool (*bindContext)(Display *dpy, int scrn, GLXDrawable draw, + GLXContext gc); +#else + void *bindContext; +#endif /* DRI_NEW_INTERFACE_ONLY */ + + /** + * Method to unbind a DRI drawable to a DRI graphics context. + * + * \deprecated Replaced by unbindContext3. + */ +#ifndef DRI_NEW_INTERFACE_ONLY + Bool (*unbindContext)(Display *dpy, int scrn, GLXDrawable draw, + GLXContext gc, int will_rebind); +#else + void *unbindContext; +#endif /* DRI_NEW_INTERFACE_ONLY */ + + /** + * Opaque pointer to private per context direct rendering data. + * \c NULL if direct rendering is not supported on the display or + * screen used to create this context. Never dereferenced in libGL. + */ + void *private; + + /** + * Method to bind a DRI drawable to a DRI graphics context. + * + * \since Internal API version 20030606. + * \deprecated Replaced by bindContext3. + */ +#ifndef DRI_NEW_INTERFACE_ONLY + Bool (*bindContext2)(Display *dpy, int scrn, GLXDrawable draw, + GLXDrawable read, GLXContext gc); +#else + void *bindContext2; +#endif /* DRI_NEW_INTERFACE_ONLY */ + + /** + * Method to unbind a DRI drawable from a DRI graphics context. + * + * \since Internal API version 20030606. + * \deprecated Replaced by unbindContext3. + */ +#ifndef DRI_NEW_INTERFACE_ONLY + Bool (*unbindContext2)(Display *dpy, int scrn, GLXDrawable draw, + GLXDrawable read, GLXContext gc); +#else + void *unbindContext2; +#endif /* DRI_NEW_INTERFACE_ONLY */ + + /** + * Pointer to the mode used to create this context. + * + * \since Internal API version 20040317. + */ + const __GLcontextModes * mode; + + /** + * Method to bind a DRI drawable to a DRI graphics context. + * + * \since Internal API version 20040317. + */ + Bool (*bindContext3)(Display *dpy, int scrn, __DRIid draw, + __DRIid read, __DRIcontext *ctx); + + /** + * Method to unbind a DRI drawable from a DRI graphics context. + * + * \since Internal API version 20040317. + */ + Bool (*unbindContext3)(Display *dpy, int scrn, __DRIid draw, + __DRIid read, __DRIcontext *ctx); +}; + +/** + * Drawable dependent methods. This structure is initialized during the + * \c __DRIscreenRec::createDrawable call. \c createDrawable is not called + * by libGL at this time. It's currently used via the dri_util.c utility code + * instead. + */ +struct __DRIdrawableRec { + /** + * Method to destroy the private DRI drawable data. + */ + void (*destroyDrawable)(Display *dpy, void *drawablePrivate); + + /** + * Method to swap the front and back buffers. + */ + void (*swapBuffers)(Display *dpy, void *drawablePrivate); + + /** + * Opaque pointer to private per drawable direct rendering data. + * \c NULL if direct rendering is not supported on the display or + * screen used to create this drawable. Never dereferenced in libGL. + */ + void *private; + + /** + * Get the number of completed swap buffers for this drawable. + * + * \since Internal API version 20030317. + */ + int (*getSBC)(Display *dpy, void *drawablePrivate, int64_t *sbc ); + + /** + * Wait for the SBC to be greater than or equal target_sbc. + * + * \since Internal API version 20030317. + */ + int (*waitForSBC)( Display * dpy, void *drawablePriv, + int64_t target_sbc, + int64_t * msc, int64_t * sbc ); + + /** + * Wait for the MSC to equal target_msc, or, if that has already passed, + * the next time (MSC % divisor) is equal to remainder. If divisor is + * zero, the function will return as soon as MSC is greater than or equal + * to target_msc. + * + * \since Internal API version 20030317. + */ + int (*waitForMSC)( Display * dpy, void *drawablePriv, + int64_t target_msc, int64_t divisor, int64_t remainder, + int64_t * msc, int64_t * sbc ); + + /** + * Like \c swapBuffers, but does NOT have an implicit \c glFlush. Once + * rendering is complete, waits until MSC is equal to target_msc, or + * if that has already passed, waits until (MSC % divisor) is equal + * to remainder. If divisor is zero, the swap will happen as soon as + * MSC is greater than or equal to target_msc. + * + * \since Internal API version 20030317. + */ + int64_t (*swapBuffersMSC)(Display *dpy, void *drawablePrivate, + int64_t target_msc, + int64_t divisor, int64_t remainder); + + /** + * Enable or disable frame usage tracking. + * + * \since Internal API version 20030317. + */ + int (*frameTracking)(Display *dpy, void *drawablePrivate, Bool enable); + + /** + * Retrieve frame usage information. + * + * \since Internal API version 20030317. + */ + int (*queryFrameTracking)(Display *dpy, void *drawablePrivate, + int64_t * sbc, int64_t * missedFrames, + float * lastMissedUsage, float * usage ); + + /** + * Used by drivers that implement the GLX_SGI_swap_control or + * GLX_MESA_swap_control extension. + * + * \since Internal API version 20030317. + */ + unsigned swap_interval; +}; |