diff options
Diffstat (limited to 'include/GL/internal/dri_interface.h')
| -rw-r--r-- | include/GL/internal/dri_interface.h | 794 |
1 files changed, 453 insertions, 341 deletions
diff --git a/include/GL/internal/dri_interface.h b/include/GL/internal/dri_interface.h index 8d24e311f8..033d7a4ae4 100644 --- a/include/GL/internal/dri_interface.h +++ b/include/GL/internal/dri_interface.h @@ -1,5 +1,6 @@ /* * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2007-2008 Red Hat, Inc. * (C) Copyright IBM Corporation 2004 * All Rights Reserved. * @@ -33,12 +34,12 @@ * * \author Kevin E. Martin <kevin@precisioninsight.com> * \author Ian Romanick <idr@us.ibm.com> + * \author Kristian Høgsberg <krh@redhat.com> */ #ifndef DRI_INTERFACE_H #define DRI_INTERFACE_H -#include <GL/internal/glcore.h> #include <drm.h> /** @@ -48,181 +49,247 @@ * 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 struct __DRIinterfaceMethodsRec __DRIinterfaceMethods; -typedef unsigned long __DRIid; -typedef void __DRInativeDisplay; +typedef struct __DRIdisplayRec __DRIdisplay; +typedef struct __DRIscreenRec __DRIscreen; +typedef struct __DRIcontextRec __DRIcontext; +typedef struct __DRIdrawableRec __DRIdrawable; +typedef struct __DRIconfigRec __DRIconfig; +typedef struct __DRIframebufferRec __DRIframebuffer; +typedef struct __DRIversionRec __DRIversion; + +typedef struct __DRIcoreExtensionRec __DRIcoreExtension; +typedef struct __DRIextensionRec __DRIextension; +typedef struct __DRIcopySubBufferExtensionRec __DRIcopySubBufferExtension; +typedef struct __DRIswapControlExtensionRec __DRIswapControlExtension; +typedef struct __DRIallocateExtensionRec __DRIallocateExtension; +typedef struct __DRIframeTrackingExtensionRec __DRIframeTrackingExtension; +typedef struct __DRImediaStreamCounterExtensionRec __DRImediaStreamCounterExtension; +typedef struct __DRItexOffsetExtensionRec __DRItexOffsetExtension; +typedef struct __DRItexBufferExtensionRec __DRItexBufferExtension; +typedef struct __DRIlegacyExtensionRec __DRIlegacyExtension; +typedef struct __DRIswrastExtensionRec __DRIswrastExtension; /*@}*/ /** - * \name Functions provided by the driver loader. - */ -/*@{*/ -/** - * 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. + * Extension struct. Drivers 'inherit' from this struct by embedding + * it as the first element in the extension struct. * - * \sa glXGetScreenDriver, glXGetProcAddress, glXGetDriverConfig + * We never break API in for a DRI extension. If we need to change + * the way things work in a non-backwards compatible manner, we + * introduce a new extension. During a transition period, we can + * leave both the old and the new extension in the driver, which + * allows us to move to the new interface without having to update the + * loader(s) in lock step. + * + * However, we can add entry points to an extension over time as long + * as we don't break the old ones. As we add entry points to an + * extension, we increase the version number. The corresponding + * #define can be used to guard code that accesses the new entry + * points at compile time and the version field in the extension + * struct can be used at run-time to determine how to use the + * extension. */ -typedef const char * (* PFNGLXGETSCREENDRIVERPROC) (__DRInativeDisplay *dpy, int scrNum); +struct __DRIextensionRec { + const char *name; + int version; +}; /** - * 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 + * The first set of extension are the screen extensions, returned by + * __DRIcore::getExtensions(). This entry point will return a list of + * extensions and the loader can use the ones it knows about by + * casting them to more specific extensions and advertising any GLX + * extensions the DRI extensions enables. */ -typedef const char * (* PFNGLXGETDRIVERCONFIGPROC) (const char *driverName); /** - * Type of a pointer to \c glxEnableExtension, as returned by - * \c __DRIinterfaceMethods::getProcAddress. This function is used to enable - * a GLX extension on the specified screen. + * Used by drivers to indicate support for setting the read drawable. */ -typedef void (* PFNGLXSCRENABLEEXTENSIONPROC) ( void *psc, const char * name ); -/*@}*/ - +#define __DRI_READ_DRAWABLE "DRI_ReadDrawable" +#define __DRI_READ_DRAWABLE_VERSION 1 /** - * \name Functions and data provided by the driver. + * Used by drivers that implement the GLX_MESA_copy_sub_buffer extension. */ -/*@{*/ - -typedef void *(CREATENEWSCREENFUNC)(__DRInativeDisplay *dpy, int scrn, - __DRIscreen *psc, const __GLcontextModes * modes, - const __DRIversion * ddx_version, const __DRIversion * dri_version, - const __DRIversion * drm_version, const __DRIframebuffer * frame_buffer, - void * pSAREA, int fd, int internal_api_version, - const __DRIinterfaceMethods * interface, - __GLcontextModes ** driver_modes); -typedef CREATENEWSCREENFUNC* PFNCREATENEWSCREENFUNC; -extern CREATENEWSCREENFUNC __driCreateNewScreen_20050727; - +#define __DRI_COPY_SUB_BUFFER "DRI_CopySubBuffer" +#define __DRI_COPY_SUB_BUFFER_VERSION 1 +struct __DRIcopySubBufferExtensionRec { + __DRIextension base; + void (*copySubBuffer)(__DRIdrawable *drawable, int x, int y, int w, int h); +}; /** - * XML document describing the configuration options supported by the - * driver. + * Used by drivers that implement the GLX_SGI_swap_control or + * GLX_MESA_swap_control extension. */ -extern const char __driConfigOptions[]; - -/*@}*/ - +#define __DRI_SWAP_CONTROL "DRI_SwapControl" +#define __DRI_SWAP_CONTROL_VERSION 1 +struct __DRIswapControlExtensionRec { + __DRIextension base; + void (*setSwapInterval)(__DRIdrawable *drawable, unsigned int inteval); + unsigned int (*getSwapInterval)(__DRIdrawable *drawable); +}; /** - * 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. + * Used by drivers that implement the GLX_MESA_allocate_memory. */ -struct __DRIversionRec { - int major; /**< Major version number. */ - int minor; /**< Minor version number. */ - int patch; /**< Patch-level. */ -}; +#define __DRI_ALLOCATE "DRI_Allocate" +#define __DRI_ALLOCATE_VERSION 1 +struct __DRIallocateExtensionRec { + __DRIextension base; + void *(*allocateMemory)(__DRIscreen *screen, GLsizei size, + GLfloat readfreq, GLfloat writefreq, + GLfloat priority); + + void (*freeMemory)(__DRIscreen *screen, GLvoid *pointer); + + GLuint (*memoryOffset)(__DRIscreen *screen, const GLvoid *pointer); +}; -typedef void (*__DRIfuncPtr)(void); +/** + * Used by drivers that implement the GLX_MESA_swap_frame_usage extension. + */ +#define __DRI_FRAME_TRACKING "DRI_FrameTracking" +#define __DRI_FRAME_TRACKING_VERSION 1 +struct __DRIframeTrackingExtensionRec { + __DRIextension base; -struct __DRIinterfaceMethodsRec { /** - * Get pointer to named function. + * Enable or disable frame usage tracking. + * + * \since Internal API version 20030317. */ - __DRIfuncPtr (*getProcAddress)( const char * proc_name ); + int (*frameTracking)(__DRIdrawable *drawable, GLboolean enable); /** - * Create a list of \c __GLcontextModes structures. + * Retrieve frame usage information. + * + * \since Internal API version 20030317. */ - __GLcontextModes * (*createContextModes)(unsigned count, - size_t minimum_bytes_per_struct); + int (*queryFrameTracking)(__DRIdrawable *drawable, + int64_t * sbc, int64_t * missedFrames, + float * lastMissedUsage, float * usage); +}; + + +/** + * Used by drivers that implement the GLX_SGI_video_sync extension. + */ +#define __DRI_MEDIA_STREAM_COUNTER "DRI_MediaStreamCounter" +#define __DRI_MEDIA_STREAM_COUNTER_VERSION 1 +struct __DRImediaStreamCounterExtensionRec { + __DRIextension base; /** - * Destroy a list of \c __GLcontextModes structures. - * - * \todo - * Determine if the drivers actually need to call this. + * 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. */ - void (*destroyContextModes)( __GLcontextModes * modes ); + int (*waitForMSC)(__DRIdrawable *drawable, + int64_t target_msc, int64_t divisor, int64_t remainder, + int64_t * msc, int64_t * sbc); /** - * Get the \c __DRIscreen for a given display and screen number. + * Get the number of vertical refreshes since some point in time before + * this function was first called (i.e., system start up). */ - __DRIscreen *(*getScreen)(__DRInativeDisplay *dpy, int screenNum); + int (*getDrawableMSC)(__DRIscreen *screen, __DRIdrawable *drawable, + int64_t *msc); +}; + +#define __DRI_TEX_OFFSET "DRI_TexOffset" +#define __DRI_TEX_OFFSET_VERSION 1 +struct __DRItexOffsetExtensionRec { + __DRIextension base; /** - * \name Client/server protocol functions. + * Method to override base texture image with a driver specific 'offset'. + * The depth passed in allows e.g. to ignore the alpha channel of texture + * images where the non-alpha components don't occupy a whole texel. * - * These functions implement the DRI client/server protocol for - * context and drawable operations. Platforms that do not implement - * the wire protocol (e.g., EGL) will implement glorified no-op functions. - */ - /*@{*/ - /** - * Determine if the specified window ID still exists. - * - * \note - * Implementations may assume that the driver will only pass an ID into - * this function that actually corresponds to a window. On - * implementations where windows can only be destroyed by the DRI driver - * (e.g., EGL), this function is allowed to always return \c GL_TRUE. + * For GLX_EXT_texture_from_pixmap with AIGLX. */ - GLboolean (*windowExists)(__DRInativeDisplay *dpy, __DRIid draw); + void (*setTexOffset)(__DRIcontext *pDRICtx, GLint texname, + unsigned long long offset, GLint depth, GLuint pitch); +}; - /** - * Create the server-side portion of the GL context. - */ - GLboolean (* createContext)( __DRInativeDisplay *dpy, int screenNum, - int configID, void * contextID, drm_context_t * hw_context ); - /** - * Destroy the server-side portion of the GL context. - */ - GLboolean (* destroyContext)( __DRInativeDisplay *dpy, int screenNum, - __DRIid context ); +#define __DRI_TEX_BUFFER "DRI_TexBuffer" +#define __DRI_TEX_BUFFER_VERSION 1 +struct __DRItexBufferExtensionRec { + __DRIextension base; /** - * Create the server-side portion of the drawable. + * Method to override base texture image with the contents of a + * __DRIdrawable. + * + * For GLX_EXT_texture_from_pixmap with AIGLX. */ - GLboolean (*createDrawable)( __DRInativeDisplay * ndpy, int screen, - __DRIid drawable, drm_drawable_t * hHWDrawable ); + void (*setTexBuffer)(__DRIcontext *pDRICtx, + GLint target, + __DRIdrawable *pDraw); +}; - /** - * Destroy the server-side portion of the drawable. - */ - GLboolean (*destroyDrawable)( __DRInativeDisplay * ndpy, int screen, - __DRIid drawable ); + +/** + * XML document describing the configuration options supported by the + * driver. + */ +extern const char __driConfigOptions[]; + +/*@}*/ + +/** + * The following extensions describe loader features that the DRI + * driver can make use of. Some of these are mandatory, such as the + * getDrawableInfo extension for DRI and the DRI Loader extensions for + * DRI2, while others are optional, and if present allow the driver to + * expose certain features. The loader pass in a NULL terminated + * array of these extensions to the driver in the createNewScreen + * constructor. + */ + +typedef struct __DRIgetDrawableInfoExtensionRec __DRIgetDrawableInfoExtension; +typedef struct __DRIsystemTimeExtensionRec __DRIsystemTimeExtension; +typedef struct __DRIdamageExtensionRec __DRIdamageExtension; +typedef struct __DRIloaderExtensionRec __DRIloaderExtension; +typedef struct __DRIswrastLoaderExtensionRec __DRIswrastLoaderExtension; + + +/** + * Callback to getDrawableInfo protocol + */ +#define __DRI_GET_DRAWABLE_INFO "DRI_GetDrawableInfo" +#define __DRI_GET_DRAWABLE_INFO_VERSION 1 +struct __DRIgetDrawableInfoExtensionRec { + __DRIextension base; /** * This function is used to get information about the position, size, and * clip rects of a drawable. */ - GLboolean (* getDrawableInfo) ( __DRInativeDisplay *dpy, int scrn, - __DRIid draw, unsigned int * index, unsigned int * stamp, + GLboolean (* getDrawableInfo) ( __DRIdrawable *drawable, + unsigned int * index, unsigned int * stamp, int * x, int * y, int * width, int * height, int * numClipRects, drm_clip_rect_t ** pClipRects, int * backX, int * backY, - int * numBackClipRects, drm_clip_rect_t ** pBackClipRects ); - /*@}*/ + int * numBackClipRects, drm_clip_rect_t ** pBackClipRects, + void *loaderPrivate); +}; +/** + * Callback to get system time for media stream counter extensions. + */ +#define __DRI_SYSTEM_TIME "DRI_SystemTime" +#define __DRI_SYSTEM_TIME_VERSION 1 +struct __DRIsystemTimeExtensionRec { + __DRIextension base; /** - * \name Timing related functions. - */ - /*@{*/ - /** * Get the 64-bit unadjusted system time (UST). */ int (*getUST)(int64_t * ust); @@ -234,9 +301,18 @@ struct __DRIinterfaceMethodsRec { * the rate of the "media stream counter". In practical terms, this is * the frame refresh rate of the display. */ - GLboolean (*getMSCRate)(__DRInativeDisplay * dpy, __DRIid drawable, - int32_t * numerator, int32_t * denominator); - /*@}*/ + GLboolean (*getMSCRate)(__DRIdrawable *draw, + int32_t * numerator, int32_t * denominator, + void *loaderPrivate); +}; + +/** + * Damage reporting + */ +#define __DRI_DAMAGE "DRI_Damage" +#define __DRI_DAMAGE_VERSION 1 +struct __DRIdamageExtensionRec { + __DRIextension base; /** * Reports areas of the given drawable which have been modified by the @@ -251,15 +327,221 @@ struct __DRIinterfaceMethodsRec { * \param front_buffer boolean flag for whether the drawing to the * drawable was actually done directly to the front buffer (instead * of backing storage, for example) + * \param loaderPrivate the data passed in at createNewDrawable time */ - void (*reportDamage)(__DRInativeDisplay * dpy, int screen, - __DRIid drawable, + void (*reportDamage)(__DRIdrawable *draw, int x, int y, drm_clip_rect_t *rects, int num_rects, - int front_buffer); + GLboolean front_buffer, + void *loaderPrivate); +}; + +/** + * DRI2 Loader extension. This extension describes the basic + * functionality the loader needs to provide for the DRI driver. + */ +#define __DRI_LOADER "DRI_Loader" +#define __DRI_LOADER_VERSION 1 +struct __DRIloaderExtensionRec { + __DRIextension base; + + /** + * Ping the windowing system to get it to reemit info for the + * specified drawable in the DRI2 event buffer. + * + * \param draw the drawable for which to request info + * \param tail the new event buffer tail pointer + */ + void (*reemitDrawableInfo)(__DRIdrawable *draw, unsigned int *tail, + void *loaderPrivate); + + void (*postDamage)(__DRIdrawable *draw, struct drm_clip_rect *rects, + int num_rects, void *loaderPrivate); +}; + +#define __DRI_SWRAST_IMAGE_OP_DRAW 1 +#define __DRI_SWRAST_IMAGE_OP_CLEAR 2 +#define __DRI_SWRAST_IMAGE_OP_SWAP 3 + +/** + * SWRast Loader extension. + */ +#define __DRI_SWRAST_LOADER "DRI_SWRastLoader" +#define __DRI_SWRAST_LOADER_VERSION 1 +struct __DRIswrastLoaderExtensionRec { + __DRIextension base; + + /* + * Drawable position and size + */ + void (*getDrawableInfo)(__DRIdrawable *drawable, + int *x, int *y, int *width, int *height, + void *loaderPrivate); + + /** + * Put image to drawable + */ + void (*putImage)(__DRIdrawable *drawable, int op, + int x, int y, int width, int height, char *data, + void *loaderPrivate); + + /** + * Get image from drawable + */ + void (*getImage)(__DRIdrawable *drawable, + int x, int y, int width, int height, char *data, + void *loaderPrivate); +}; + +/** + * The remaining extensions describe driver extensions, immediately + * available interfaces provided by the driver. To start using the + * driver, dlsym() for the __DRI_DRIVER_EXTENSIONS symbol and look for + * the extension you need in the array. + */ +#define __DRI_DRIVER_EXTENSIONS "__driDriverExtensions" + +/** + * Tokens for __DRIconfig attribs. A number of attributes defined by + * GLX or EGL standards are not in the table, as they must be provided + * by the loader. For example, FBConfig ID or visual ID, drawable type. + */ + +#define __DRI_ATTRIB_BUFFER_SIZE 1 +#define __DRI_ATTRIB_LEVEL 2 +#define __DRI_ATTRIB_RED_SIZE 3 +#define __DRI_ATTRIB_GREEN_SIZE 4 +#define __DRI_ATTRIB_BLUE_SIZE 5 +#define __DRI_ATTRIB_LUMINANCE_SIZE 6 +#define __DRI_ATTRIB_ALPHA_SIZE 7 +#define __DRI_ATTRIB_ALPHA_MASK_SIZE 8 +#define __DRI_ATTRIB_DEPTH_SIZE 9 +#define __DRI_ATTRIB_STENCIL_SIZE 10 +#define __DRI_ATTRIB_ACCUM_RED_SIZE 11 +#define __DRI_ATTRIB_ACCUM_GREEN_SIZE 12 +#define __DRI_ATTRIB_ACCUM_BLUE_SIZE 13 +#define __DRI_ATTRIB_ACCUM_ALPHA_SIZE 14 +#define __DRI_ATTRIB_SAMPLE_BUFFERS 15 +#define __DRI_ATTRIB_SAMPLES 16 +#define __DRI_ATTRIB_RENDER_TYPE 17 +#define __DRI_ATTRIB_CONFIG_CAVEAT 18 +#define __DRI_ATTRIB_CONFORMANT 19 +#define __DRI_ATTRIB_DOUBLE_BUFFER 20 +#define __DRI_ATTRIB_STEREO 21 +#define __DRI_ATTRIB_AUX_BUFFERS 22 +#define __DRI_ATTRIB_TRANSPARENT_TYPE 23 +#define __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE 24 +#define __DRI_ATTRIB_TRANSPARENT_RED_VALUE 25 +#define __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE 26 +#define __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE 27 +#define __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE 28 +#define __DRI_ATTRIB_FLOAT_MODE 29 +#define __DRI_ATTRIB_RED_MASK 30 +#define __DRI_ATTRIB_GREEN_MASK 31 +#define __DRI_ATTRIB_BLUE_MASK 32 +#define __DRI_ATTRIB_ALPHA_MASK 33 +#define __DRI_ATTRIB_MAX_PBUFFER_WIDTH 34 +#define __DRI_ATTRIB_MAX_PBUFFER_HEIGHT 35 +#define __DRI_ATTRIB_MAX_PBUFFER_PIXELS 36 +#define __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH 37 +#define __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT 38 +#define __DRI_ATTRIB_VISUAL_SELECT_GROUP 39 +#define __DRI_ATTRIB_SWAP_METHOD 40 +#define __DRI_ATTRIB_MAX_SWAP_INTERVAL 41 +#define __DRI_ATTRIB_MIN_SWAP_INTERVAL 42 +#define __DRI_ATTRIB_BIND_TO_TEXTURE_RGB 43 +#define __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA 44 +#define __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE 45 +#define __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS 46 +#define __DRI_ATTRIB_YINVERTED 47 + +/* __DRI_ATTRIB_RENDER_TYPE */ +#define __DRI_ATTRIB_RGBA_BIT 0x01 +#define __DRI_ATTRIB_COLOR_INDEX_BIT 0x02 +#define __DRI_ATTRIB_LUMINANCE_BIT 0x04 + +/* __DRI_ATTRIB_CONFIG_CAVEAT */ +#define __DRI_ATTRIB_SLOW_BIT 0x01 +#define __DRI_ATTRIB_NON_CONFORMANT_CONFIG 0x02 + +/* __DRI_ATTRIB_TRANSPARENT_TYPE */ +#define __DRI_ATTRIB_TRANSPARENT_RGB 0x00 +#define __DRI_ATTRIB_TRANSPARENT_INDEX 0x01 + +/* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */ +#define __DRI_ATTRIB_TEXTURE_1D_BIT 0x01 +#define __DRI_ATTRIB_TEXTURE_2D_BIT 0x02 +#define __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT 0x04 + +/** + * This extension defines the core DRI functionality. + */ +#define __DRI_CORE "DRI_Core" +#define __DRI_CORE_VERSION 1 + +struct __DRIcoreExtensionRec { + __DRIextension base; + + __DRIscreen *(*createNewScreen)(int screen, int fd, + unsigned int sarea_handle, + const __DRIextension **extensions, + const __DRIconfig ***driverConfigs, + void *loaderPrivate); + + void (*destroyScreen)(__DRIscreen *screen); + + const __DRIextension **(*getExtensions)(__DRIscreen *screen); + + int (*getConfigAttrib)(const __DRIconfig *config, + unsigned int attrib, + unsigned int *value); + + int (*indexConfigAttrib)(const __DRIconfig *config, int index, + unsigned int *attrib, unsigned int *value); + + __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen, + const __DRIconfig *config, + unsigned int drawable_id, + unsigned int head, + void *loaderPrivate); + + void (*destroyDrawable)(__DRIdrawable *drawable); + + void (*swapBuffers)(__DRIdrawable *drawable); + + __DRIcontext *(*createNewContext)(__DRIscreen *screen, + const __DRIconfig *config, + __DRIcontext *shared, + void *loaderPrivate); + + int (*copyContext)(__DRIcontext *dest, + __DRIcontext *src, + unsigned long mask); + + void (*destroyContext)(__DRIcontext *context); + + int (*bindContext)(__DRIcontext *ctx, + __DRIdrawable *pdraw, + __DRIdrawable *pread); + + int (*unbindContext)(__DRIcontext *ctx); +}; + +/** + * 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. @@ -289,229 +571,59 @@ struct __DRIframebufferRec { /** - * Screen dependent methods. This structure is initialized during the - * \c __DRIdisplayRec::createScreen call. + * This extension provides alternative screen, drawable and context + * constructors for legacy DRI functionality. This is used in + * conjunction with the core extension. */ -struct __DRIscreenRec { - /** - * Method to destroy the private DRI screen data. - */ - void (*destroyScreen)(__DRInativeDisplay *dpy, int scrn, void *screenPrivate); - - /** - * Method to create the private DRI drawable data and initialize the - * drawable dependent methods. - */ - void *(*createNewDrawable)(__DRInativeDisplay *dpy, const __GLcontextModes *modes, - __DRIid draw, __DRIdrawable *pdraw, - int renderType, const int *attrs); - - /** - * Method to return a pointer to the DRI drawable data. - */ - __DRIdrawable *(*getDrawable)(__DRInativeDisplay *dpy, __DRIid 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)(__DRInativeDisplay *dpy, int scrn, GLsizei size, - GLfloat readfreq, GLfloat writefreq, - GLfloat priority); - - void (*freeMemory)(__DRInativeDisplay *dpy, int scrn, GLvoid *pointer); - - GLuint (*memoryOffset)(__DRInativeDisplay *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)(__DRInativeDisplay *dpy, const __GLcontextModes *modes, - int render_type, - void *sharedPrivate, __DRIcontext *pctx); - - /** - * Method to override base texture image with a driver specific 'offset'. - * The depth passed in allows e.g. to ignore the alpha channel of texture - * images where the non-alpha components don't occupy a whole texel. - * - * For GLX_EXT_texture_from_pixmap with AIGLX. - * - * \since Internal API version 20070121. - */ - void (*setTexOffset)(__DRIcontext *pDRICtx, GLint texname, - unsigned long long offset, GLint depth, GLuint pitch); +#define __DRI_LEGACY "DRI_Legacy" +#define __DRI_LEGACY_VERSION 1 + +struct __DRIlegacyExtensionRec { + __DRIextension base; + + __DRIscreen *(*createNewScreen)(int screen, + const __DRIversion *ddx_version, + const __DRIversion *dri_version, + const __DRIversion *drm_version, + const __DRIframebuffer *frame_buffer, + void *pSAREA, int fd, + const __DRIextension **extensions, + const __DRIconfig ***driver_configs, + void *loaderPrivate); + + __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen, + const __DRIconfig *config, + drm_drawable_t hwDrawable, + int renderType, const int *attrs, + void *loaderPrivate); + + __DRIcontext *(*createNewContext)(__DRIscreen *screen, + const __DRIconfig *config, + int render_type, + __DRIcontext *shared, + drm_context_t hwContext, + void *loaderPrivate); }; /** - * Context dependent methods. This structure is initialized during the - * \c __DRIscreenRec::createContext call. + * This extension provides alternative screen, drawable and context + * constructors for swrast DRI functionality. This is used in + * conjunction with the core extension. */ -struct __DRIcontextRec { - /** - * Method to destroy the private DRI context data. - */ - void (*destroyContext)(__DRInativeDisplay *dpy, int scrn, void *contextPrivate); +#define __DRI_SWRAST "DRI_SWRast" +#define __DRI_SWRAST_VERSION 1 - /** - * 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; - - /** - * 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 20050727. - */ - GLboolean (*bindContext)(__DRInativeDisplay *dpy, int scrn, __DRIid draw, - __DRIid read, __DRIcontext *ctx); - - /** - * Method to unbind a DRI drawable from a DRI graphics context. - * - * \since Internal API version 20050727. - */ - GLboolean (*unbindContext)(__DRInativeDisplay *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)(__DRInativeDisplay *dpy, void *drawablePrivate); - - /** - * Method to swap the front and back buffers. - */ - void (*swapBuffers)(__DRInativeDisplay *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)(__DRInativeDisplay *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)( __DRInativeDisplay * 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)( __DRInativeDisplay * dpy, void *drawablePriv, - int64_t target_msc, int64_t divisor, int64_t remainder, - int64_t * msc, int64_t * sbc ); +struct __DRIswrastExtensionRec { + __DRIextension base; - /** - * 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)(__DRInativeDisplay *dpy, void *drawablePrivate, - int64_t target_msc, - int64_t divisor, int64_t remainder); + __DRIscreen *(*createNewScreen)(int screen, + const __DRIextension **extensions, + const __DRIconfig ***driver_configs, + void *loaderPrivate); - /** - * Enable or disable frame usage tracking. - * - * \since Internal API version 20030317. - */ - int (*frameTracking)(__DRInativeDisplay *dpy, void *drawablePrivate, GLboolean enable); - - /** - * Retrieve frame usage information. - * - * \since Internal API version 20030317. - */ - int (*queryFrameTracking)(__DRInativeDisplay *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; - - /** - * Used by drivers that implement the GLX_MESA_copy_sub_buffer extension. - * - * \since Internal API version 20060314. - */ - void (*copySubBuffer)(__DRInativeDisplay *dpy, void *drawablePrivate, - int x, int y, int w, int h); + __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen, + const __DRIconfig *config, + void *loaderPrivate); }; #endif |