diff options
Diffstat (limited to 'mesalib/include/GL/internal')
-rw-r--r-- | mesalib/include/GL/internal/dri_interface.h | 1733 |
1 files changed, 871 insertions, 862 deletions
diff --git a/mesalib/include/GL/internal/dri_interface.h b/mesalib/include/GL/internal/dri_interface.h index 9ee039bd9..5321035a5 100644 --- a/mesalib/include/GL/internal/dri_interface.h +++ b/mesalib/include/GL/internal/dri_interface.h @@ -1,862 +1,871 @@ -/* - * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. - * Copyright 2007-2008 Red Hat, Inc. - * (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> - * \author Kristian Høgsberg <krh@redhat.com> - */ - -#ifndef DRI_INTERFACE_H -#define DRI_INTERFACE_H - -/* For archs with no drm.h */ -#if defined(__APPLE__) || defined(__CYGWIN__) || defined(__GNU__) -#ifndef __NOT_HAVE_DRM_H -#define __NOT_HAVE_DRM_H -#endif -#endif - -#ifndef __NOT_HAVE_DRM_H -#include <drm.h> -#else -typedef unsigned int drm_context_t; -typedef unsigned int drm_drawable_t; -typedef struct drm_clip_rect drm_clip_rect_t; -#endif - -/** - * \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 __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 __DRIframeTrackingExtensionRec __DRIframeTrackingExtension; -typedef struct __DRImediaStreamCounterExtensionRec __DRImediaStreamCounterExtension; -typedef struct __DRItexOffsetExtensionRec __DRItexOffsetExtension; -typedef struct __DRItexBufferExtensionRec __DRItexBufferExtension; -typedef struct __DRIlegacyExtensionRec __DRIlegacyExtension; -typedef struct __DRIswrastExtensionRec __DRIswrastExtension; -typedef struct __DRIbufferRec __DRIbuffer; -typedef struct __DRIdri2ExtensionRec __DRIdri2Extension; -typedef struct __DRIdri2LoaderExtensionRec __DRIdri2LoaderExtension; -typedef struct __DRI2flushExtensionRec __DRI2flushExtension; - -/*@}*/ - - -/** - * Extension struct. Drivers 'inherit' from this struct by embedding - * it as the first element in the extension struct. - * - * 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. - */ -struct __DRIextensionRec { - const char *name; - int version; -}; - -/** - * 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. - */ - -/** - * Used by drivers to indicate support for setting the read drawable. - */ -#define __DRI_READ_DRAWABLE "DRI_ReadDrawable" -#define __DRI_READ_DRAWABLE_VERSION 1 - -/** - * Used by drivers that implement the GLX_MESA_copy_sub_buffer extension. - */ -#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); -}; - -/** - * Used by drivers that implement the GLX_SGI_swap_control or - * GLX_MESA_swap_control extension. - */ -#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); -}; - -/** - * 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; - - /** - * Enable or disable frame usage tracking. - * - * \since Internal API version 20030317. - */ - int (*frameTracking)(__DRIdrawable *drawable, GLboolean enable); - - /** - * Retrieve frame usage information. - * - * \since Internal API version 20030317. - */ - 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; - - /** - * 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. - */ - int (*waitForMSC)(__DRIdrawable *drawable, - int64_t target_msc, int64_t divisor, int64_t remainder, - int64_t * msc, int64_t * sbc); - - /** - * Get the number of vertical refreshes since some point in time before - * this function was first called (i.e., system start up). - */ - 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; - - /** - * 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. - */ - void (*setTexOffset)(__DRIcontext *pDRICtx, GLint texname, - unsigned long long offset, GLint depth, GLuint pitch); -}; - - -/* Valid values for format in the setTexBuffer2 function below. These - * values match the GLX tokens for compatibility reasons, but we - * define them here since the DRI interface can't depend on GLX. */ -#define __DRI_TEXTURE_FORMAT_NONE 0x20D8 -#define __DRI_TEXTURE_FORMAT_RGB 0x20D9 -#define __DRI_TEXTURE_FORMAT_RGBA 0x20DA - -#define __DRI_TEX_BUFFER "DRI_TexBuffer" -#define __DRI_TEX_BUFFER_VERSION 2 -struct __DRItexBufferExtensionRec { - __DRIextension base; - - /** - * Method to override base texture image with the contents of a - * __DRIdrawable. - * - * For GLX_EXT_texture_from_pixmap with AIGLX. Deprecated in favor of - * setTexBuffer2 in version 2 of this interface - */ - void (*setTexBuffer)(__DRIcontext *pDRICtx, - GLint target, - __DRIdrawable *pDraw); - - /** - * Method to override base texture image with the contents of a - * __DRIdrawable, including the required texture format attribute. - * - * For GLX_EXT_texture_from_pixmap with AIGLX. - */ - void (*setTexBuffer2)(__DRIcontext *pDRICtx, - GLint target, - GLint format, - __DRIdrawable *pDraw); -}; - -/** - * Used by drivers that implement DRI2 - */ -#define __DRI2_FLUSH "DRI2_Flush" -#define __DRI2_FLUSH_VERSION 3 -struct __DRI2flushExtensionRec { - __DRIextension base; - void (*flush)(__DRIdrawable *drawable); - - /** - * Ask the driver to call getBuffers/getBuffersWithFormat before - * it starts rendering again. - * - * \param drawable the drawable to invalidate - * - * \since 3 - */ - void (*invalidate)(__DRIdrawable *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) ( __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, - 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; - - /** - * Get the 64-bit unadjusted system time (UST). - */ - int (*getUST)(int64_t * ust); - - /** - * Get the media stream counter (MSC) rate. - * - * Matching the definition in GLX_OML_sync_control, this function returns - * the rate of the "media stream counter". In practical terms, this is - * the frame refresh rate of the display. - */ - 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 - * driver. - * - * \param drawable which the drawing was done to. - * \param rects rectangles affected, with the drawable origin as the - * origin. - * \param x X offset of the drawable within the screen (used in the - * front_buffer case) - * \param y Y offset of the drawable within the screen. - * \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)(__DRIdrawable *draw, - int x, int y, - drm_clip_rect_t *rects, int num_rects, - GLboolean front_buffer, - 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 readable - */ - void (*getImage)(__DRIdrawable *readable, - int x, int y, int width, int height, - char *data, void *loaderPrivate); -}; - -/** - * Invalidate loader extension. The presence of this extension - * indicates to the DRI driver that the loader will call invalidate in - * the __DRI2_FLUSH extension, whenever the needs to query for new - * buffers. This means that the DRI driver can drop the polling in - * glViewport(). - * - * The extension doesn't provide any functionality, it's only use to - * indicate to the driver that it can use the new semantics. A DRI - * driver can use this to switch between the different semantics or - * just refuse to initialize if this extension isn't present. - */ -#define __DRI_USE_INVALIDATE "DRI_UseInvalidate" -#define __DRI_USE_INVALIDATE_VERSION 1 - -typedef struct __DRIuseInvalidateExtensionRec __DRIuseInvalidateExtension; -struct __DRIuseInvalidateExtensionRec { - __DRIextension base; -}; - -/** - * 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. - * - * 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. */ -}; - - -/** - * This extension provides alternative screen, drawable and context - * constructors for legacy DRI functionality. This is used in - * conjunction with the core extension. - */ -#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); -}; - -/** - * This extension provides alternative screen, drawable and context - * constructors for swrast DRI functionality. This is used in - * conjunction with the core extension. - */ -#define __DRI_SWRAST "DRI_SWRast" -#define __DRI_SWRAST_VERSION 1 - -struct __DRIswrastExtensionRec { - __DRIextension base; - - __DRIscreen *(*createNewScreen)(int screen, - const __DRIextension **extensions, - const __DRIconfig ***driver_configs, - void *loaderPrivate); - - __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen, - const __DRIconfig *config, - void *loaderPrivate); -}; - -/** - * DRI2 Loader extension. - */ -#define __DRI_BUFFER_FRONT_LEFT 0 -#define __DRI_BUFFER_BACK_LEFT 1 -#define __DRI_BUFFER_FRONT_RIGHT 2 -#define __DRI_BUFFER_BACK_RIGHT 3 -#define __DRI_BUFFER_DEPTH 4 -#define __DRI_BUFFER_STENCIL 5 -#define __DRI_BUFFER_ACCUM 6 -#define __DRI_BUFFER_FAKE_FRONT_LEFT 7 -#define __DRI_BUFFER_FAKE_FRONT_RIGHT 8 -#define __DRI_BUFFER_DEPTH_STENCIL 9 /**< Only available with DRI2 1.1 */ - -struct __DRIbufferRec { - unsigned int attachment; - unsigned int name; - unsigned int pitch; - unsigned int cpp; - unsigned int flags; -}; - -#define __DRI_DRI2_LOADER "DRI_DRI2Loader" -#define __DRI_DRI2_LOADER_VERSION 3 -struct __DRIdri2LoaderExtensionRec { - __DRIextension base; - - __DRIbuffer *(*getBuffers)(__DRIdrawable *driDrawable, - int *width, int *height, - unsigned int *attachments, int count, - int *out_count, void *loaderPrivate); - - /** - * Flush pending front-buffer rendering - * - * Any rendering that has been performed to the - * \c __DRI_BUFFER_FAKE_FRONT_LEFT will be flushed to the - * \c __DRI_BUFFER_FRONT_LEFT. - * - * \param driDrawable Drawable whose front-buffer is to be flushed - * \param loaderPrivate Loader's private data that was previously passed - * into __DRIdri2ExtensionRec::createNewDrawable - */ - void (*flushFrontBuffer)(__DRIdrawable *driDrawable, void *loaderPrivate); - - - /** - * Get list of buffers from the server - * - * Gets a list of buffer for the specified set of attachments. Unlike - * \c ::getBuffers, this function takes a list of attachments paired with - * opaque \c unsigned \c int value describing the format of the buffer. - * It is the responsibility of the caller to know what the service that - * allocates the buffers will expect to receive for the format. - * - * \param driDrawable Drawable whose buffers are being queried. - * \param width Output where the width of the buffers is stored. - * \param height Output where the height of the buffers is stored. - * \param attachments List of pairs of attachment ID and opaque format - * requested for the drawable. - * \param count Number of attachment / format pairs stored in - * \c attachments. - * \param loaderPrivate Loader's private data that was previously passed - * into __DRIdri2ExtensionRec::createNewDrawable. - */ - __DRIbuffer *(*getBuffersWithFormat)(__DRIdrawable *driDrawable, - int *width, int *height, - unsigned int *attachments, int count, - int *out_count, void *loaderPrivate); -}; - -/** - * This extension provides alternative screen, drawable and context - * constructors for DRI2. - */ -#define __DRI_DRI2 "DRI_DRI2" -#define __DRI_DRI2_VERSION 2 - -#define __DRI_API_OPENGL 0 -#define __DRI_API_GLES 1 -#define __DRI_API_GLES2 2 - -struct __DRIdri2ExtensionRec { - __DRIextension base; - - __DRIscreen *(*createNewScreen)(int screen, int fd, - const __DRIextension **extensions, - const __DRIconfig ***driver_configs, - void *loaderPrivate); - - __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen, - const __DRIconfig *config, - void *loaderPrivate); - - __DRIcontext *(*createNewContext)(__DRIscreen *screen, - const __DRIconfig *config, - __DRIcontext *shared, - void *loaderPrivate); - - /* Since version 2 */ - unsigned int (*getAPIMask)(__DRIscreen *screen); - - __DRIcontext *(*createNewContextForAPI)(__DRIscreen *screen, - int api, - const __DRIconfig *config, - __DRIcontext *shared, - void *data); -}; - - -/** - * This extension provides functionality to enable various EGLImage - * extensions. - */ -#define __DRI_IMAGE "DRI_IMAGE" -#define __DRI_IMAGE_VERSION 1 - -/** - * These formats correspond to the similarly named MESA_FORMAT_* - * tokens, except in the native endian of the CPU. For example, on - * little endian __DRI_IMAGE_FORMAT_XRGB8888 corresponds to - * MESA_FORMAT_XRGB8888, but MESA_FORMAT_XRGB8888_REV on big endian. - */ -#define __DRI_IMAGE_FORMAT_RGB565 0x1001 -#define __DRI_IMAGE_FORMAT_XRGB8888 0x1002 -#define __DRI_IMAGE_FORMAT_ARGB8888 0x1003 - -#define __DRI_IMAGE_USE_SHARE 0x0001 -#define __DRI_IMAGE_USE_SCANOUT 0x0002 - -/** - * queryImage attributes - */ - -#define __DRI_IMAGE_ATTRIB_STRIDE 0x2000 -#define __DRI_IMAGE_ATTRIB_HANDLE 0x2001 -#define __DRI_IMAGE_ATTRIB_NAME 0x2002 - -typedef struct __DRIimageRec __DRIimage; -typedef struct __DRIimageExtensionRec __DRIimageExtension; -struct __DRIimageExtensionRec { - __DRIextension base; - - __DRIimage *(*createImageFromName)(__DRIscreen *screen, - int width, int height, int format, - int name, int pitch, - void *loaderPrivate); - - __DRIimage *(*createImageFromRenderbuffer)(__DRIcontext *context, - int renderbuffer, - void *loaderPrivate); - - void (*destroyImage)(__DRIimage *image); - - __DRIimage *(*createImage)(__DRIscreen *screen, - int width, int height, int format, - unsigned int use, - void *loaderPrivate); - - GLboolean (*queryImage)(__DRIimage *image, int attrib, int *value); -}; - - -/** - * This extension must be implemented by the loader and passed to the - * driver at screen creation time. The EGLImage entry points in the - * various client APIs take opaque EGLImage handles and use this - * extension to map them to a __DRIimage. At version 1, this - * extensions allows mapping EGLImage pointers to __DRIimage pointers, - * but future versions could support other EGLImage-like, opaque types - * with new lookup functions. - */ -#define __DRI_IMAGE_LOOKUP "DRI_IMAGE_LOOKUP" -#define __DRI_IMAGE_LOOKUP_VERSION 1 - -typedef struct __DRIimageLookupExtensionRec __DRIimageLookupExtension; -struct __DRIimageLookupExtensionRec { - __DRIextension base; - - __DRIimage *(*lookupEGLImage)(__DRIscreen *screen, void *image, - void *loaderPrivate); -}; - -/** - * This extension allows for common DRI2 options - */ -#define __DRI2_CONFIG_QUERY "DRI_CONFIG_QUERY" -#define __DRI2_CONFIG_QUERY_VERSION 1 - -typedef struct __DRI2configQueryExtensionRec __DRI2configQueryExtension; -struct __DRI2configQueryExtensionRec { - __DRIextension base; - - int (*configQueryb)(__DRIscreen *screen, const char *var, GLboolean *val); - int (*configQueryi)(__DRIscreen *screen, const char *var, GLint *val); - int (*configQueryf)(__DRIscreen *screen, const char *var, GLfloat *val); -}; -#endif +/*
+ * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2007-2008 Red Hat, Inc.
+ * (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>
+ * \author Kristian Høgsberg <krh@redhat.com>
+ */
+
+#ifndef DRI_INTERFACE_H
+#define DRI_INTERFACE_H
+
+/* For archs with no drm.h */
+#if defined(__APPLE__) || defined(__CYGWIN__) || defined(__GNU__)
+#ifndef __NOT_HAVE_DRM_H
+#define __NOT_HAVE_DRM_H
+#endif
+#endif
+
+#ifndef __NOT_HAVE_DRM_H
+#include <drm.h>
+#else
+typedef unsigned int drm_context_t;
+typedef unsigned int drm_drawable_t;
+typedef struct drm_clip_rect drm_clip_rect_t;
+#endif
+
+/**
+ * \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 __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 __DRIframeTrackingExtensionRec __DRIframeTrackingExtension;
+typedef struct __DRImediaStreamCounterExtensionRec __DRImediaStreamCounterExtension;
+typedef struct __DRItexOffsetExtensionRec __DRItexOffsetExtension;
+typedef struct __DRItexBufferExtensionRec __DRItexBufferExtension;
+typedef struct __DRIlegacyExtensionRec __DRIlegacyExtension;
+typedef struct __DRIswrastExtensionRec __DRIswrastExtension;
+typedef struct __DRIbufferRec __DRIbuffer;
+typedef struct __DRIdri2ExtensionRec __DRIdri2Extension;
+typedef struct __DRIdri2LoaderExtensionRec __DRIdri2LoaderExtension;
+typedef struct __DRI2flushExtensionRec __DRI2flushExtension;
+
+/*@}*/
+
+
+/**
+ * Extension struct. Drivers 'inherit' from this struct by embedding
+ * it as the first element in the extension struct.
+ *
+ * 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.
+ */
+struct __DRIextensionRec {
+ const char *name;
+ int version;
+};
+
+/**
+ * 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.
+ */
+
+/**
+ * Used by drivers to indicate support for setting the read drawable.
+ */
+#define __DRI_READ_DRAWABLE "DRI_ReadDrawable"
+#define __DRI_READ_DRAWABLE_VERSION 1
+
+/**
+ * Used by drivers that implement the GLX_MESA_copy_sub_buffer extension.
+ */
+#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);
+};
+
+/**
+ * Used by drivers that implement the GLX_SGI_swap_control or
+ * GLX_MESA_swap_control extension.
+ */
+#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);
+};
+
+/**
+ * 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;
+
+ /**
+ * Enable or disable frame usage tracking.
+ *
+ * \since Internal API version 20030317.
+ */
+ int (*frameTracking)(__DRIdrawable *drawable, GLboolean enable);
+
+ /**
+ * Retrieve frame usage information.
+ *
+ * \since Internal API version 20030317.
+ */
+ 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;
+
+ /**
+ * 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.
+ */
+ int (*waitForMSC)(__DRIdrawable *drawable,
+ int64_t target_msc, int64_t divisor, int64_t remainder,
+ int64_t * msc, int64_t * sbc);
+
+ /**
+ * Get the number of vertical refreshes since some point in time before
+ * this function was first called (i.e., system start up).
+ */
+ 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;
+
+ /**
+ * 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.
+ */
+ void (*setTexOffset)(__DRIcontext *pDRICtx, GLint texname,
+ unsigned long long offset, GLint depth, GLuint pitch);
+};
+
+
+/* Valid values for format in the setTexBuffer2 function below. These
+ * values match the GLX tokens for compatibility reasons, but we
+ * define them here since the DRI interface can't depend on GLX. */
+#define __DRI_TEXTURE_FORMAT_NONE 0x20D8
+#define __DRI_TEXTURE_FORMAT_RGB 0x20D9
+#define __DRI_TEXTURE_FORMAT_RGBA 0x20DA
+
+#define __DRI_TEX_BUFFER "DRI_TexBuffer"
+#define __DRI_TEX_BUFFER_VERSION 2
+struct __DRItexBufferExtensionRec {
+ __DRIextension base;
+
+ /**
+ * Method to override base texture image with the contents of a
+ * __DRIdrawable.
+ *
+ * For GLX_EXT_texture_from_pixmap with AIGLX. Deprecated in favor of
+ * setTexBuffer2 in version 2 of this interface
+ */
+ void (*setTexBuffer)(__DRIcontext *pDRICtx,
+ GLint target,
+ __DRIdrawable *pDraw);
+
+ /**
+ * Method to override base texture image with the contents of a
+ * __DRIdrawable, including the required texture format attribute.
+ *
+ * For GLX_EXT_texture_from_pixmap with AIGLX.
+ */
+ void (*setTexBuffer2)(__DRIcontext *pDRICtx,
+ GLint target,
+ GLint format,
+ __DRIdrawable *pDraw);
+ /**
+ * Method to release texture buffer in case some special platform
+ * need this.
+ *
+ * For GLX_EXT_texture_from_pixmap with AIGLX.
+ */
+ void (*releaseTexBuffer)(__DRIcontext *pDRICtx,
+ GLint target,
+ __DRIdrawable *pDraw);
+};
+
+/**
+ * Used by drivers that implement DRI2
+ */
+#define __DRI2_FLUSH "DRI2_Flush"
+#define __DRI2_FLUSH_VERSION 3
+struct __DRI2flushExtensionRec {
+ __DRIextension base;
+ void (*flush)(__DRIdrawable *drawable);
+
+ /**
+ * Ask the driver to call getBuffers/getBuffersWithFormat before
+ * it starts rendering again.
+ *
+ * \param drawable the drawable to invalidate
+ *
+ * \since 3
+ */
+ void (*invalidate)(__DRIdrawable *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) ( __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,
+ 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;
+
+ /**
+ * Get the 64-bit unadjusted system time (UST).
+ */
+ int (*getUST)(int64_t * ust);
+
+ /**
+ * Get the media stream counter (MSC) rate.
+ *
+ * Matching the definition in GLX_OML_sync_control, this function returns
+ * the rate of the "media stream counter". In practical terms, this is
+ * the frame refresh rate of the display.
+ */
+ 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
+ * driver.
+ *
+ * \param drawable which the drawing was done to.
+ * \param rects rectangles affected, with the drawable origin as the
+ * origin.
+ * \param x X offset of the drawable within the screen (used in the
+ * front_buffer case)
+ * \param y Y offset of the drawable within the screen.
+ * \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)(__DRIdrawable *draw,
+ int x, int y,
+ drm_clip_rect_t *rects, int num_rects,
+ GLboolean front_buffer,
+ 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 readable
+ */
+ void (*getImage)(__DRIdrawable *readable,
+ int x, int y, int width, int height,
+ char *data, void *loaderPrivate);
+};
+
+/**
+ * Invalidate loader extension. The presence of this extension
+ * indicates to the DRI driver that the loader will call invalidate in
+ * the __DRI2_FLUSH extension, whenever the needs to query for new
+ * buffers. This means that the DRI driver can drop the polling in
+ * glViewport().
+ *
+ * The extension doesn't provide any functionality, it's only use to
+ * indicate to the driver that it can use the new semantics. A DRI
+ * driver can use this to switch between the different semantics or
+ * just refuse to initialize if this extension isn't present.
+ */
+#define __DRI_USE_INVALIDATE "DRI_UseInvalidate"
+#define __DRI_USE_INVALIDATE_VERSION 1
+
+typedef struct __DRIuseInvalidateExtensionRec __DRIuseInvalidateExtension;
+struct __DRIuseInvalidateExtensionRec {
+ __DRIextension base;
+};
+
+/**
+ * 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.
+ *
+ * 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. */
+};
+
+
+/**
+ * This extension provides alternative screen, drawable and context
+ * constructors for legacy DRI functionality. This is used in
+ * conjunction with the core extension.
+ */
+#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);
+};
+
+/**
+ * This extension provides alternative screen, drawable and context
+ * constructors for swrast DRI functionality. This is used in
+ * conjunction with the core extension.
+ */
+#define __DRI_SWRAST "DRI_SWRast"
+#define __DRI_SWRAST_VERSION 1
+
+struct __DRIswrastExtensionRec {
+ __DRIextension base;
+
+ __DRIscreen *(*createNewScreen)(int screen,
+ const __DRIextension **extensions,
+ const __DRIconfig ***driver_configs,
+ void *loaderPrivate);
+
+ __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
+ const __DRIconfig *config,
+ void *loaderPrivate);
+};
+
+/**
+ * DRI2 Loader extension.
+ */
+#define __DRI_BUFFER_FRONT_LEFT 0
+#define __DRI_BUFFER_BACK_LEFT 1
+#define __DRI_BUFFER_FRONT_RIGHT 2
+#define __DRI_BUFFER_BACK_RIGHT 3
+#define __DRI_BUFFER_DEPTH 4
+#define __DRI_BUFFER_STENCIL 5
+#define __DRI_BUFFER_ACCUM 6
+#define __DRI_BUFFER_FAKE_FRONT_LEFT 7
+#define __DRI_BUFFER_FAKE_FRONT_RIGHT 8
+#define __DRI_BUFFER_DEPTH_STENCIL 9 /**< Only available with DRI2 1.1 */
+
+struct __DRIbufferRec {
+ unsigned int attachment;
+ unsigned int name;
+ unsigned int pitch;
+ unsigned int cpp;
+ unsigned int flags;
+};
+
+#define __DRI_DRI2_LOADER "DRI_DRI2Loader"
+#define __DRI_DRI2_LOADER_VERSION 3
+struct __DRIdri2LoaderExtensionRec {
+ __DRIextension base;
+
+ __DRIbuffer *(*getBuffers)(__DRIdrawable *driDrawable,
+ int *width, int *height,
+ unsigned int *attachments, int count,
+ int *out_count, void *loaderPrivate);
+
+ /**
+ * Flush pending front-buffer rendering
+ *
+ * Any rendering that has been performed to the
+ * \c __DRI_BUFFER_FAKE_FRONT_LEFT will be flushed to the
+ * \c __DRI_BUFFER_FRONT_LEFT.
+ *
+ * \param driDrawable Drawable whose front-buffer is to be flushed
+ * \param loaderPrivate Loader's private data that was previously passed
+ * into __DRIdri2ExtensionRec::createNewDrawable
+ */
+ void (*flushFrontBuffer)(__DRIdrawable *driDrawable, void *loaderPrivate);
+
+
+ /**
+ * Get list of buffers from the server
+ *
+ * Gets a list of buffer for the specified set of attachments. Unlike
+ * \c ::getBuffers, this function takes a list of attachments paired with
+ * opaque \c unsigned \c int value describing the format of the buffer.
+ * It is the responsibility of the caller to know what the service that
+ * allocates the buffers will expect to receive for the format.
+ *
+ * \param driDrawable Drawable whose buffers are being queried.
+ * \param width Output where the width of the buffers is stored.
+ * \param height Output where the height of the buffers is stored.
+ * \param attachments List of pairs of attachment ID and opaque format
+ * requested for the drawable.
+ * \param count Number of attachment / format pairs stored in
+ * \c attachments.
+ * \param loaderPrivate Loader's private data that was previously passed
+ * into __DRIdri2ExtensionRec::createNewDrawable.
+ */
+ __DRIbuffer *(*getBuffersWithFormat)(__DRIdrawable *driDrawable,
+ int *width, int *height,
+ unsigned int *attachments, int count,
+ int *out_count, void *loaderPrivate);
+};
+
+/**
+ * This extension provides alternative screen, drawable and context
+ * constructors for DRI2.
+ */
+#define __DRI_DRI2 "DRI_DRI2"
+#define __DRI_DRI2_VERSION 2
+
+#define __DRI_API_OPENGL 0
+#define __DRI_API_GLES 1
+#define __DRI_API_GLES2 2
+
+struct __DRIdri2ExtensionRec {
+ __DRIextension base;
+
+ __DRIscreen *(*createNewScreen)(int screen, int fd,
+ const __DRIextension **extensions,
+ const __DRIconfig ***driver_configs,
+ void *loaderPrivate);
+
+ __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
+ const __DRIconfig *config,
+ void *loaderPrivate);
+
+ __DRIcontext *(*createNewContext)(__DRIscreen *screen,
+ const __DRIconfig *config,
+ __DRIcontext *shared,
+ void *loaderPrivate);
+
+ /* Since version 2 */
+ unsigned int (*getAPIMask)(__DRIscreen *screen);
+
+ __DRIcontext *(*createNewContextForAPI)(__DRIscreen *screen,
+ int api,
+ const __DRIconfig *config,
+ __DRIcontext *shared,
+ void *data);
+};
+
+
+/**
+ * This extension provides functionality to enable various EGLImage
+ * extensions.
+ */
+#define __DRI_IMAGE "DRI_IMAGE"
+#define __DRI_IMAGE_VERSION 1
+
+/**
+ * These formats correspond to the similarly named MESA_FORMAT_*
+ * tokens, except in the native endian of the CPU. For example, on
+ * little endian __DRI_IMAGE_FORMAT_XRGB8888 corresponds to
+ * MESA_FORMAT_XRGB8888, but MESA_FORMAT_XRGB8888_REV on big endian.
+ */
+#define __DRI_IMAGE_FORMAT_RGB565 0x1001
+#define __DRI_IMAGE_FORMAT_XRGB8888 0x1002
+#define __DRI_IMAGE_FORMAT_ARGB8888 0x1003
+
+#define __DRI_IMAGE_USE_SHARE 0x0001
+#define __DRI_IMAGE_USE_SCANOUT 0x0002
+
+/**
+ * queryImage attributes
+ */
+
+#define __DRI_IMAGE_ATTRIB_STRIDE 0x2000
+#define __DRI_IMAGE_ATTRIB_HANDLE 0x2001
+#define __DRI_IMAGE_ATTRIB_NAME 0x2002
+
+typedef struct __DRIimageRec __DRIimage;
+typedef struct __DRIimageExtensionRec __DRIimageExtension;
+struct __DRIimageExtensionRec {
+ __DRIextension base;
+
+ __DRIimage *(*createImageFromName)(__DRIscreen *screen,
+ int width, int height, int format,
+ int name, int pitch,
+ void *loaderPrivate);
+
+ __DRIimage *(*createImageFromRenderbuffer)(__DRIcontext *context,
+ int renderbuffer,
+ void *loaderPrivate);
+
+ void (*destroyImage)(__DRIimage *image);
+
+ __DRIimage *(*createImage)(__DRIscreen *screen,
+ int width, int height, int format,
+ unsigned int use,
+ void *loaderPrivate);
+
+ GLboolean (*queryImage)(__DRIimage *image, int attrib, int *value);
+};
+
+
+/**
+ * This extension must be implemented by the loader and passed to the
+ * driver at screen creation time. The EGLImage entry points in the
+ * various client APIs take opaque EGLImage handles and use this
+ * extension to map them to a __DRIimage. At version 1, this
+ * extensions allows mapping EGLImage pointers to __DRIimage pointers,
+ * but future versions could support other EGLImage-like, opaque types
+ * with new lookup functions.
+ */
+#define __DRI_IMAGE_LOOKUP "DRI_IMAGE_LOOKUP"
+#define __DRI_IMAGE_LOOKUP_VERSION 1
+
+typedef struct __DRIimageLookupExtensionRec __DRIimageLookupExtension;
+struct __DRIimageLookupExtensionRec {
+ __DRIextension base;
+
+ __DRIimage *(*lookupEGLImage)(__DRIscreen *screen, void *image,
+ void *loaderPrivate);
+};
+
+/**
+ * This extension allows for common DRI2 options
+ */
+#define __DRI2_CONFIG_QUERY "DRI_CONFIG_QUERY"
+#define __DRI2_CONFIG_QUERY_VERSION 1
+
+typedef struct __DRI2configQueryExtensionRec __DRI2configQueryExtension;
+struct __DRI2configQueryExtensionRec {
+ __DRIextension base;
+
+ int (*configQueryb)(__DRIscreen *screen, const char *var, GLboolean *val);
+ int (*configQueryi)(__DRIscreen *screen, const char *var, GLint *val);
+ int (*configQueryf)(__DRIscreen *screen, const char *var, GLfloat *val);
+};
+#endif
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