/* * 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 * \author Ian Romanick * \author Kristian Høgsberg */ #ifndef DRI_INTERFACE_H #define DRI_INTERFACE_H #ifdef HAVE_LIBDRM #include #else typedef unsigned int drm_context_t; typedef unsigned int drm_drawable_t; typedef struct drm_clip_rect drm_clip_rect_t; #endif #include #include /** * \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; typedef struct __DRI2throttleExtensionRec __DRI2throttleExtension; typedef struct __DRI2fenceExtensionRec __DRI2fenceExtension; typedef struct __DRI2interopExtensionRec __DRI2interopExtension; typedef struct __DRI2blobExtensionRec __DRI2blobExtension; typedef struct __DRI2bufferDamageExtensionRec __DRI2bufferDamageExtension; typedef struct __DRIimageLoaderExtensionRec __DRIimageLoaderExtension; typedef struct __DRIimageDriverExtensionRec __DRIimageDriverExtension; /*@}*/ /** * 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 3 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. * * \since 2 */ 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. * * \since 3 */ void (*releaseTexBuffer)(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *pDraw); }; /** * Used by drivers that implement DRI2 */ #define __DRI2_FLUSH "DRI2_Flush" #define __DRI2_FLUSH_VERSION 4 #define __DRI2_FLUSH_DRAWABLE (1 << 0) /* the drawable should be flushed. */ #define __DRI2_FLUSH_CONTEXT (1 << 1) /* glFlush should be called */ #define __DRI2_FLUSH_INVALIDATE_ANCILLARY (1 << 2) enum __DRI2throttleReason { __DRI2_THROTTLE_SWAPBUFFER, __DRI2_THROTTLE_COPYSUBBUFFER, __DRI2_THROTTLE_FLUSHFRONT }; 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); /** * This function reduces the number of flushes in the driver by combining * several operations into one call. * * It can: * - throttle * - flush a drawable * - flush a context * * \param context the context * \param drawable the drawable to flush * \param flags a combination of _DRI2_FLUSH_xxx flags * \param throttle_reason the reason for throttling, 0 = no throttling * * \since 4 */ void (*flush_with_flags)(__DRIcontext *ctx, __DRIdrawable *drawable, unsigned flags, enum __DRI2throttleReason throttle_reason); }; /** * Extension that the driver uses to request * throttle callbacks. */ #define __DRI2_THROTTLE "DRI2_Throttle" #define __DRI2_THROTTLE_VERSION 1 struct __DRI2throttleExtensionRec { __DRIextension base; void (*throttle)(__DRIcontext *ctx, __DRIdrawable *drawable, enum __DRI2throttleReason reason); }; /** * Extension for EGL_ANDROID_blob_cache */ #define __DRI2_BLOB "DRI2_Blob" #define __DRI2_BLOB_VERSION 1 typedef void (*__DRIblobCacheSet) (const void *key, signed long keySize, const void *value, signed long valueSize); typedef signed long (*__DRIblobCacheGet) (const void *key, signed long keySize, void *value, signed long valueSize); struct __DRI2blobExtensionRec { __DRIextension base; /** * Set cache functions for setting and getting cache entries. */ void (*set_cache_funcs) (__DRIscreen *screen, __DRIblobCacheSet set, __DRIblobCacheGet get); }; /** * Extension for fences / synchronization objects. */ #define __DRI2_FENCE "DRI2_Fence" #define __DRI2_FENCE_VERSION 2 #define __DRI2_FENCE_TIMEOUT_INFINITE 0xffffffffffffffffull #define __DRI2_FENCE_FLAG_FLUSH_COMMANDS (1 << 0) /** * \name Capabilities that might be returned by __DRI2fenceExtensionRec::get_capabilities */ /*@{*/ #define __DRI_FENCE_CAP_NATIVE_FD 1 /*@}*/ struct __DRI2fenceExtensionRec { __DRIextension base; /** * Create and insert a fence into the command stream of the context. */ void *(*create_fence)(__DRIcontext *ctx); /** * Get a fence associated with the OpenCL event object. * This can be NULL, meaning that OpenCL interoperability is not supported. */ void *(*get_fence_from_cl_event)(__DRIscreen *screen, intptr_t cl_event); /** * Destroy a fence. */ void (*destroy_fence)(__DRIscreen *screen, void *fence); /** * This function waits and doesn't return until the fence is signalled * or the timeout expires. It returns true if the fence has been signaled. * * \param ctx the context where commands are flushed * \param fence the fence * \param flags a combination of __DRI2_FENCE_FLAG_xxx flags * \param timeout the timeout in ns or __DRI2_FENCE_TIMEOUT_INFINITE */ GLboolean (*client_wait_sync)(__DRIcontext *ctx, void *fence, unsigned flags, uint64_t timeout); /** * This function enqueues a wait command into the command stream of * the context and then returns. When the execution reaches the wait * command, no further execution will be done in the context until * the fence is signaled. This is a no-op if the device doesn't support * parallel execution of contexts. * * \param ctx the context where the waiting is done * \param fence the fence * \param flags a combination of __DRI2_FENCE_FLAG_xxx flags that make * sense with this function (right now there are none) */ void (*server_wait_sync)(__DRIcontext *ctx, void *fence, unsigned flags); /** * Query for general capabilities of the driver that concern fences. * Returns a bitmask of __DRI_FENCE_CAP_x * * \since 2 */ unsigned (*get_capabilities)(__DRIscreen *screen); /** * Create an fd (file descriptor) associated fence. If the fence fd * is -1, this behaves similarly to create_fence() except that when * rendering is flushed the driver creates a fence fd. Otherwise, * the driver wraps an existing fence fd. * * This is used to implement the EGL_ANDROID_native_fence_sync extension. * * \since 2 * * \param ctx the context associated with the fence * \param fd the fence fd or -1 */ void *(*create_fence_fd)(__DRIcontext *ctx, int fd); /** * For fences created with create_fence_fd(), after rendering is flushed, * this retrieves the native fence fd. Caller takes ownership of the * fd and will close() it when it is no longer needed. * * \since 2 * * \param screen the screen associated with the fence * \param fence the fence */ int (*get_fence_fd)(__DRIscreen *screen, void *fence); }; /** * Extension for API interop. * See GL/mesa_glinterop.h. */ #define __DRI2_INTEROP "DRI2_Interop" #define __DRI2_INTEROP_VERSION 1 struct mesa_glinterop_device_info; struct mesa_glinterop_export_in; struct mesa_glinterop_export_out; struct __DRI2interopExtensionRec { __DRIextension base; /** Same as MesaGLInterop*QueryDeviceInfo. */ int (*query_device_info)(__DRIcontext *ctx, struct mesa_glinterop_device_info *out); /** Same as MesaGLInterop*ExportObject. */ int (*export_object)(__DRIcontext *ctx, struct mesa_glinterop_export_in *in, struct mesa_glinterop_export_out *out); }; /** * Extension for limiting window system back buffer rendering to user-defined * scissor region. */ #define __DRI2_BUFFER_DAMAGE "DRI2_BufferDamage" #define __DRI2_BUFFER_DAMAGE_VERSION 1 struct __DRI2bufferDamageExtensionRec { __DRIextension base; /** * Provides an array of rectangles representing an overriding scissor region * for rendering operations performed to the specified drawable. These * rectangles do not replace client API scissor regions or draw * co-ordinates, but instead inform the driver of the overall bounds of all * operations which will be issued before the next flush. * * Any rendering operations writing pixels outside this region to the * drawable will have an undefined effect on the entire drawable. * * This entrypoint may only be called after the drawable has either been * newly created or flushed, and before any rendering operations which write * pixels to the drawable. Calling this entrypoint at any other time will * have an undefined effect on the entire drawable. * * Calling this entrypoint with @nrects 0 and @rects NULL will reset the * region to the buffer's full size. This entrypoint may be called once to * reset the region, followed by a second call with a populated region, * before a rendering call is made. * * Used to implement EGL_KHR_partial_update. * * \param drawable affected drawable * \param nrects number of rectangles provided * \param rects the array of rectangles, lower-left origin */ void (*set_damage_region)(__DRIdrawable *drawable, unsigned int nrects, int *rects); }; /*@}*/ /** * 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 6 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); /** * Put image to drawable * * \since 2 */ void (*putImage2)(__DRIdrawable *drawable, int op, int x, int y, int width, int height, int stride, char *data, void *loaderPrivate); /** * Put image to drawable * * \since 3 */ void (*getImage2)(__DRIdrawable *readable, int x, int y, int width, int height, int stride, char *data, void *loaderPrivate); /** * Put shm image to drawable * * \since 4 */ void (*putImageShm)(__DRIdrawable *drawable, int op, int x, int y, int width, int height, int stride, int shmid, char *shmaddr, unsigned offset, void *loaderPrivate); /** * Get shm image from readable * * \since 4 */ void (*getImageShm)(__DRIdrawable *readable, int x, int y, int width, int height, int shmid, void *loaderPrivate); /** * Put shm image to drawable (v2) * * The original version fixes srcx/y to 0, and expected * the offset to be adjusted. This version allows src x,y * to not be included in the offset. This is needed to * avoid certain overflow checks in the X server, that * result in lost rendering. * * \since 5 */ void (*putImageShm2)(__DRIdrawable *drawable, int op, int x, int y, int width, int height, int stride, int shmid, char *shmaddr, unsigned offset, void *loaderPrivate); /** * get shm image to drawable (v2) * * There are some cases where GLX can't use SHM, but DRI * still tries, we need to get a return type for when to * fallback to the non-shm path. * * \since 6 */ GLboolean (*getImageShm2)(__DRIdrawable *readable, int x, int y, int width, int height, int shmid, 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" /** * This symbol replaces the __DRI_DRIVER_EXTENSIONS symbol, and will be * suffixed by "_drivername", allowing multiple drivers to be built into one * library, and also giving the driver the chance to return a variable driver * extensions struct depending on the driver name being loaded or any other * system state. * * The function prototype is: * * const __DRIextension **__driDriverGetExtensions_drivername(void); */ #define __DRI_DRIVER_GET_EXTENSIONS "__driDriverGetExtensions" /** * 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 #define __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE 48 #define __DRI_ATTRIB_MUTABLE_RENDER_BUFFER 49 /* EGL_MUTABLE_RENDER_BUFFER_BIT_KHR */ #define __DRI_ATTRIB_RED_SHIFT 50 #define __DRI_ATTRIB_GREEN_SHIFT 51 #define __DRI_ATTRIB_BLUE_SHIFT 52 #define __DRI_ATTRIB_ALPHA_SHIFT 53 #define __DRI_ATTRIB_MAX 54 /* __DRI_ATTRIB_RENDER_TYPE */ #define __DRI_ATTRIB_RGBA_BIT 0x01 #define __DRI_ATTRIB_COLOR_INDEX_BIT 0x02 #define __DRI_ATTRIB_LUMINANCE_BIT 0x04 #define __DRI_ATTRIB_FLOAT_BIT 0x08 #define __DRI_ATTRIB_UNSIGNED_FLOAT_BIT 0x10 /* __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 /* __DRI_ATTRIB_SWAP_METHOD */ /* Note that with the exception of __DRI_ATTRIB_SWAP_NONE, we need to define * the same tokens as GLX. This is because old and current X servers will * transmit the driconf value grabbed from the AIGLX driver untranslated as * the GLX fbconfig value. __DRI_ATTRIB_SWAP_NONE is only used by dri drivers * to signal to the dri core that the driconfig is single-buffer. */ #define __DRI_ATTRIB_SWAP_NONE 0x0000 #define __DRI_ATTRIB_SWAP_EXCHANGE 0x8061 #define __DRI_ATTRIB_SWAP_COPY 0x8062 #define __DRI_ATTRIB_SWAP_UNDEFINED 0x8063 /** * This extension defines the core DRI functionality. * * Version >= 2 indicates that getConfigAttrib with __DRI_ATTRIB_SWAP_METHOD * returns a reliable value. */ #define __DRI_CORE "DRI_Core" #define __DRI_CORE_VERSION 2 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 4 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); /* Since version 2 */ __DRIcontext *(*createNewContextForAPI)(__DRIscreen *screen, int api, const __DRIconfig *config, __DRIcontext *shared, void *data); /** * Create a context for a particular API with a set of attributes * * \since version 3 * * \sa __DRIdri2ExtensionRec::createContextAttribs */ __DRIcontext *(*createContextAttribs)(__DRIscreen *screen, int api, const __DRIconfig *config, __DRIcontext *shared, unsigned num_attribs, const uint32_t *attribs, unsigned *error, void *loaderPrivate); /** * createNewScreen() with the driver extensions passed in. * * \since version 4 */ __DRIscreen *(*createNewScreen2)(int screen, const __DRIextension **loader_extensions, const __DRIextension **driver_extensions, const __DRIconfig ***driver_configs, void *loaderPrivate); }; /** Common DRI function definitions, shared among DRI2 and Image extensions */ typedef __DRIscreen * (*__DRIcreateNewScreen2Func)(int screen, int fd, const __DRIextension **extensions, const __DRIextension **driver_extensions, const __DRIconfig ***driver_configs, void *loaderPrivate); typedef __DRIdrawable * (*__DRIcreateNewDrawableFunc)(__DRIscreen *screen, const __DRIconfig *config, void *loaderPrivate); typedef __DRIcontext * (*__DRIcreateContextAttribsFunc)(__DRIscreen *screen, int api, const __DRIconfig *config, __DRIcontext *shared, unsigned num_attribs, const uint32_t *attribs, unsigned *error, void *loaderPrivate); typedef unsigned int (*__DRIgetAPIMaskFunc)(__DRIscreen *screen); /** * 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 */ #define __DRI_BUFFER_HIZ 10 /* Inofficial and for internal use. Increase when adding a new buffer token. */ #define __DRI_BUFFER_COUNT 11 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 4 enum dri_loader_cap { /* Whether the loader handles RGBA channel ordering correctly. If not, * only BGRA ordering can be exposed. */ DRI_LOADER_CAP_RGBA_ORDERING, DRI_LOADER_CAP_FP16, }; 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 * * \since 2 */ 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. * * \since 3 */ __DRIbuffer *(*getBuffersWithFormat)(__DRIdrawable *driDrawable, int *width, int *height, unsigned int *attachments, int count, int *out_count, void *loaderPrivate); /** * Return a loader capability value. If the loader doesn't know the enum, * it will return 0. * * \param loaderPrivate The last parameter of createNewScreen or * createNewScreen2. * \param cap See the enum. * * \since 4 */ unsigned (*getCapability)(void *loaderPrivate, enum dri_loader_cap cap); }; /** * This extension provides alternative screen, drawable and context * constructors for DRI2. */ #define __DRI_DRI2 "DRI_DRI2" #define __DRI_DRI2_VERSION 4 #define __DRI_API_OPENGL 0 /**< OpenGL compatibility profile */ #define __DRI_API_GLES 1 /**< OpenGL ES 1.x */ #define __DRI_API_GLES2 2 /**< OpenGL ES 2.x */ #define __DRI_API_OPENGL_CORE 3 /**< OpenGL 3.2+ core profile */ #define __DRI_API_GLES3 4 /**< OpenGL ES 3.x */ #define __DRI_CTX_ATTRIB_MAJOR_VERSION 0 #define __DRI_CTX_ATTRIB_MINOR_VERSION 1 #define __DRI_CTX_ATTRIB_FLAGS 2 /** * \requires __DRI2_ROBUSTNESS. */ #define __DRI_CTX_ATTRIB_RESET_STRATEGY 3 #define __DRI_CTX_FLAG_DEBUG 0x00000001 #define __DRI_CTX_FLAG_FORWARD_COMPATIBLE 0x00000002 /** * \requires __DRI2_ROBUSTNESS. */ #define __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS 0x00000004 /** * \requires __DRI2_NO_ERROR. * */ #define __DRI_CTX_FLAG_NO_ERROR 0x00000008 /** * \name Context reset strategies. */ /*@{*/ #define __DRI_CTX_RESET_NO_NOTIFICATION 0 #define __DRI_CTX_RESET_LOSE_CONTEXT 1 /*@}*/ #define __DRI_CTX_ATTRIB_PRIORITY 4 #define __DRI_CTX_PRIORITY_LOW 0 #define __DRI_CTX_PRIORITY_MEDIUM 1 #define __DRI_CTX_PRIORITY_HIGH 2 /** * \name Context release behaviors. */ /*@{*/ #define __DRI_CTX_ATTRIB_RELEASE_BEHAVIOR 5 #define __DRI_CTX_RELEASE_BEHAVIOR_NONE 0 #define __DRI_CTX_RELEASE_BEHAVIOR_FLUSH 1 /*@}*/ /** * \name Reasons that __DRIdri2Extension::createContextAttribs might fail */ /*@{*/ /** Success! */ #define __DRI_CTX_ERROR_SUCCESS 0 /** Memory allocation failure */ #define __DRI_CTX_ERROR_NO_MEMORY 1 /** Client requested an API (e.g., OpenGL ES 2.0) that the driver can't do. */ #define __DRI_CTX_ERROR_BAD_API 2 /** Client requested an API version that the driver can't do. */ #define __DRI_CTX_ERROR_BAD_VERSION 3 /** Client requested a flag or combination of flags the driver can't do. */ #define __DRI_CTX_ERROR_BAD_FLAG 4 /** Client requested an attribute the driver doesn't understand. */ #define __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE 5 /** Client requested a flag the driver doesn't understand. */ #define __DRI_CTX_ERROR_UNKNOWN_FLAG 6 /*@}*/ struct __DRIdri2ExtensionRec { __DRIextension base; __DRIscreen *(*createNewScreen)(int screen, int fd, const __DRIextension **extensions, const __DRIconfig ***driver_configs, void *loaderPrivate); __DRIcreateNewDrawableFunc createNewDrawable; __DRIcontext *(*createNewContext)(__DRIscreen *screen, const __DRIconfig *config, __DRIcontext *shared, void *loaderPrivate); /* Since version 2 */ __DRIgetAPIMaskFunc getAPIMask; __DRIcontext *(*createNewContextForAPI)(__DRIscreen *screen, int api, const __DRIconfig *config, __DRIcontext *shared, void *data); __DRIbuffer *(*allocateBuffer)(__DRIscreen *screen, unsigned int attachment, unsigned int format, int width, int height); void (*releaseBuffer)(__DRIscreen *screen, __DRIbuffer *buffer); /** * Create a context for a particular API with a set of attributes * * \since version 3 * * \sa __DRIswrastExtensionRec::createContextAttribs */ __DRIcreateContextAttribsFunc createContextAttribs; /** * createNewScreen with the driver's extension list passed in. * * \since version 4 */ __DRIcreateNewScreen2Func createNewScreen2; }; /** * This extension provides functionality to enable various EGLImage * extensions. */ #define __DRI_IMAGE "DRI_IMAGE" #define __DRI_IMAGE_VERSION 18 /** * 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. * * __DRI_IMAGE_FORMAT_NONE is for images that aren't directly usable * by the driver (YUV planar formats) but serve as a base image for * creating sub-images for the different planes within the image. * * R8, GR88 and NONE should not be used with createImageFromName or * createImage, and are returned by query from sub images created with * createImageFromNames (NONE, see above) and fromPlane (R8 & GR88). */ #define __DRI_IMAGE_FORMAT_RGB565 0x1001 #define __DRI_IMAGE_FORMAT_XRGB8888 0x1002 #define __DRI_IMAGE_FORMAT_ARGB8888 0x1003 #define __DRI_IMAGE_FORMAT_ABGR8888 0x1004 #define __DRI_IMAGE_FORMAT_XBGR8888 0x1005 #define __DRI_IMAGE_FORMAT_R8 0x1006 /* Since version 5 */ #define __DRI_IMAGE_FORMAT_GR88 0x1007 #define __DRI_IMAGE_FORMAT_NONE 0x1008 #define __DRI_IMAGE_FORMAT_XRGB2101010 0x1009 #define __DRI_IMAGE_FORMAT_ARGB2101010 0x100a #define __DRI_IMAGE_FORMAT_SARGB8 0x100b #define __DRI_IMAGE_FORMAT_ARGB1555 0x100c #define __DRI_IMAGE_FORMAT_R16 0x100d #define __DRI_IMAGE_FORMAT_GR1616 0x100e #define __DRI_IMAGE_FORMAT_YUYV 0x100f #define __DRI_IMAGE_FORMAT_XBGR2101010 0x1010 #define __DRI_IMAGE_FORMAT_ABGR2101010 0x1011 #define __DRI_IMAGE_FORMAT_SABGR8 0x1012 #define __DRI_IMAGE_FORMAT_UYVY 0x1013 #define __DRI_IMAGE_FORMAT_XBGR16161616F 0x1014 #define __DRI_IMAGE_FORMAT_ABGR16161616F 0x1015 #define __DRI_IMAGE_FORMAT_SXRGB8 0x1016 #define __DRI_IMAGE_USE_SHARE 0x0001 #define __DRI_IMAGE_USE_SCANOUT 0x0002 #define __DRI_IMAGE_USE_CURSOR 0x0004 /* Deprecated */ #define __DRI_IMAGE_USE_LINEAR 0x0008 /* The buffer will only be read by an external process after SwapBuffers, * in contrary to gbm buffers, front buffers and fake front buffers, which * could be read after a flush." */ #define __DRI_IMAGE_USE_BACKBUFFER 0x0010 #define __DRI_IMAGE_USE_PROTECTED 0x0020 #define __DRI_IMAGE_TRANSFER_READ 0x1 #define __DRI_IMAGE_TRANSFER_WRITE 0x2 #define __DRI_IMAGE_TRANSFER_READ_WRITE \ (__DRI_IMAGE_TRANSFER_READ | __DRI_IMAGE_TRANSFER_WRITE) /** * Extra fourcc formats used internally to Mesa with createImageFromNames. * The externally-available fourccs are defined by drm_fourcc.h (DRM_FORMAT_*) * and WL_DRM_FORMAT_* from wayland_drm.h. * * \since 5 */ #define __DRI_IMAGE_FOURCC_SARGB8888 0x83324258 #define __DRI_IMAGE_FOURCC_SABGR8888 0x84324258 #define __DRI_IMAGE_FOURCC_SXRGB8888 0x85324258 /** * Queryable on images created by createImageFromNames. * * RGB and RGBA are may be usable directly as images but its still * recommended to call fromPlanar with plane == 0. * * Y_U_V, Y_UV,Y_XUXV and Y_UXVX all requires call to fromPlanar to create * usable sub-images, sampling from images return raw YUV data and * color conversion needs to be done in the shader. * * \since 5 */ #define __DRI_IMAGE_COMPONENTS_RGB 0x3001 #define __DRI_IMAGE_COMPONENTS_RGBA 0x3002 #define __DRI_IMAGE_COMPONENTS_Y_U_V 0x3003 #define __DRI_IMAGE_COMPONENTS_Y_UV 0x3004 #define __DRI_IMAGE_COMPONENTS_Y_XUXV 0x3005 #define __DRI_IMAGE_COMPONENTS_Y_UXVX 0x3008 #define __DRI_IMAGE_COMPONENTS_AYUV 0x3009 #define __DRI_IMAGE_COMPONENTS_XYUV 0x300A #define __DRI_IMAGE_COMPONENTS_R 0x3006 #define __DRI_IMAGE_COMPONENTS_RG 0x3007 /** * queryImage attributes */ #define __DRI_IMAGE_ATTRIB_STRIDE 0x2000 #define __DRI_IMAGE_ATTRIB_HANDLE 0x2001 #define __DRI_IMAGE_ATTRIB_NAME 0x2002 #define __DRI_IMAGE_ATTRIB_FORMAT 0x2003 /* available in versions 3+ */ #define __DRI_IMAGE_ATTRIB_WIDTH 0x2004 /* available in versions 4+ */ #define __DRI_IMAGE_ATTRIB_HEIGHT 0x2005 #define __DRI_IMAGE_ATTRIB_COMPONENTS 0x2006 /* available in versions 5+ */ #define __DRI_IMAGE_ATTRIB_FD 0x2007 /* available in versions * 7+. Each query will return a * new fd. */ #define __DRI_IMAGE_ATTRIB_FOURCC 0x2008 /* available in versions 11 */ #define __DRI_IMAGE_ATTRIB_NUM_PLANES 0x2009 /* available in versions 11 */ #define __DRI_IMAGE_ATTRIB_OFFSET 0x200A /* available in versions 13 */ #define __DRI_IMAGE_ATTRIB_MODIFIER_LOWER 0x200B /* available in versions 14 */ #define __DRI_IMAGE_ATTRIB_MODIFIER_UPPER 0x200C /* available in versions 14 */ enum __DRIYUVColorSpace { __DRI_YUV_COLOR_SPACE_UNDEFINED = 0, __DRI_YUV_COLOR_SPACE_ITU_REC601 = 0x327F, __DRI_YUV_COLOR_SPACE_ITU_REC709 = 0x3280, __DRI_YUV_COLOR_SPACE_ITU_REC2020 = 0x3281 }; enum __DRISampleRange { __DRI_YUV_RANGE_UNDEFINED = 0, __DRI_YUV_FULL_RANGE = 0x3282, __DRI_YUV_NARROW_RANGE = 0x3283 }; enum __DRIChromaSiting { __DRI_YUV_CHROMA_SITING_UNDEFINED = 0, __DRI_YUV_CHROMA_SITING_0 = 0x3284, __DRI_YUV_CHROMA_SITING_0_5 = 0x3285 }; /** * \name Reasons that __DRIimageExtensionRec::createImageFromTexture or * __DRIimageExtensionRec::createImageFromDmaBufs might fail */ /*@{*/ /** Success! */ #define __DRI_IMAGE_ERROR_SUCCESS 0 /** Memory allocation failure */ #define __DRI_IMAGE_ERROR_BAD_ALLOC 1 /** Client requested an invalid attribute */ #define __DRI_IMAGE_ERROR_BAD_MATCH 2 /** Client requested an invalid texture object */ #define __DRI_IMAGE_ERROR_BAD_PARAMETER 3 /** Client requested an invalid pitch and/or offset */ #define __DRI_IMAGE_ERROR_BAD_ACCESS 4 /*@}*/ /** * \name Capabilities that might be returned by __DRIimageExtensionRec::getCapabilities */ /*@{*/ #define __DRI_IMAGE_CAP_GLOBAL_NAMES 1 /*@}*/ /** * blitImage flags */ #define __BLIT_FLAG_FLUSH 0x0001 #define __BLIT_FLAG_FINISH 0x0002 /** * Flags for createImageFromDmaBufs3 */ #define __DRI_IMAGE_PROTECTED_CONTENT_FLAG 0x00000001 /** * queryDmaBufFormatModifierAttribs attributes */ /* Available in version 16 */ #define __DRI_IMAGE_FORMAT_MODIFIER_ATTRIB_PLANE_COUNT 0x0001 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); /* Deprecated since version 17; see createImageFromRenderbuffer2 */ __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); /** * The new __DRIimage will share the content with the old one, see dup(2). */ __DRIimage *(*dupImage)(__DRIimage *image, void *loaderPrivate); /** * Validate that a __DRIimage can be used a certain way. * * \since 2 */ GLboolean (*validateUsage)(__DRIimage *image, unsigned int use); /** * Unlike createImageFromName __DRI_IMAGE_FORMAT is not used but instead * DRM_FORMAT_*, and strides are in bytes not pixels. Stride is * also per block and not per pixel (for non-RGB, see gallium blocks). * * \since 5 */ __DRIimage *(*createImageFromNames)(__DRIscreen *screen, int width, int height, int fourcc, int *names, int num_names, int *strides, int *offsets, void *loaderPrivate); /** * Create an image out of a sub-region of a parent image. This * entry point lets us create individual __DRIimages for different * planes in a planar buffer (typically yuv), for example. While a * sub-image shares the underlying buffer object with the parent * image and other sibling sub-images, the life times of parent and * sub-images are not dependent. Destroying the parent or a * sub-image doesn't affect other images. The underlying buffer * object is free when no __DRIimage remains that references it. * * Sub-images may overlap, but rendering to overlapping sub-images * is undefined. * * \since 5 */ __DRIimage *(*fromPlanar)(__DRIimage *image, int plane, void *loaderPrivate); /** * Create image from texture. * * \since 6 */ __DRIimage *(*createImageFromTexture)(__DRIcontext *context, int target, unsigned texture, int depth, int level, unsigned *error, void *loaderPrivate); /** * Like createImageFromNames, but takes a prime fd instead. * * \since 7 */ __DRIimage *(*createImageFromFds)(__DRIscreen *screen, int width, int height, int fourcc, int *fds, int num_fds, int *strides, int *offsets, void *loaderPrivate); /** * Like createImageFromFds, but takes additional attributes. * * For EGL_EXT_image_dma_buf_import. * * \since 8 */ __DRIimage *(*createImageFromDmaBufs)(__DRIscreen *screen, int width, int height, int fourcc, int *fds, int num_fds, int *strides, int *offsets, enum __DRIYUVColorSpace color_space, enum __DRISampleRange sample_range, enum __DRIChromaSiting horiz_siting, enum __DRIChromaSiting vert_siting, unsigned *error, void *loaderPrivate); /** * Blit a part of a __DRIimage to another and flushes * * flush_flag: * 0: no flush * __BLIT_FLAG_FLUSH: flush after the blit operation * __BLIT_FLAG_FINISH: flush and wait the blit finished * * \since 9 */ void (*blitImage)(__DRIcontext *context, __DRIimage *dst, __DRIimage *src, int dstx0, int dsty0, int dstwidth, int dstheight, int srcx0, int srcy0, int srcwidth, int srcheight, int flush_flag); /** * Query for general capabilities of the driver that concern * buffer sharing and image importing. * * \since 10 */ int (*getCapabilities)(__DRIscreen *screen); /** * Returns a map of the specified region of a __DRIimage for the specified usage. * * flags may include __DRI_IMAGE_TRANSFER_READ, which will populate the * mapping with the current buffer content. If __DRI_IMAGE_TRANSFER_READ * is not included in the flags, the buffer content at map time is * undefined. Users wanting to modify the mapping must include * __DRI_IMAGE_TRANSFER_WRITE; if __DRI_IMAGE_TRANSFER_WRITE is not * included, behaviour when writing the mapping is undefined. * * Returns the byte stride in *stride, and an opaque pointer to data * tracking the mapping in **data, which must be passed to unmapImage(). * * \since 12 */ void *(*mapImage)(__DRIcontext *context, __DRIimage *image, int x0, int y0, int width, int height, unsigned int flags, int *stride, void **data); /** * Unmap a previously mapped __DRIimage * * \since 12 */ void (*unmapImage)(__DRIcontext *context, __DRIimage *image, void *data); /** * Creates an image with implementation's favorite modifiers. * * This acts like createImage except there is a list of modifiers passed in * which the implementation may selectively use to create the DRIimage. The * result should be the implementation selects one modifier (perhaps it would * hold on to a few and later pick). * * The created image should be destroyed with destroyImage(). * * Returns the new DRIimage. The chosen modifier can be obtained later on * and passed back to things like the kernel's AddFB2 interface. * * \sa __DRIimageRec::createImage * * \since 14 */ __DRIimage *(*createImageWithModifiers)(__DRIscreen *screen, int width, int height, int format, const uint64_t *modifiers, const unsigned int modifier_count, void *loaderPrivate); /* * Like createImageFromDmaBufs, but takes also format modifiers. * * For EGL_EXT_image_dma_buf_import_modifiers. * * \since 15 */ __DRIimage *(*createImageFromDmaBufs2)(__DRIscreen *screen, int width, int height, int fourcc, uint64_t modifier, int *fds, int num_fds, int *strides, int *offsets, enum __DRIYUVColorSpace color_space, enum __DRISampleRange sample_range, enum __DRIChromaSiting horiz_siting, enum __DRIChromaSiting vert_siting, unsigned *error, void *loaderPrivate); /* * dmabuf format query to support EGL_EXT_image_dma_buf_import_modifiers. * * \param max Maximum number of formats that can be accomodated into * \param formats. If zero, no formats are returned - * instead, the driver returns the total number of * supported dmabuf formats in \param count. * \param formats Buffer to fill formats into. * \param count Count of formats returned, or, total number of * supported formats in case \param max is zero. * * Returns true on success. * * \since 15 */ GLboolean (*queryDmaBufFormats)(__DRIscreen *screen, int max, int *formats, int *count); /* * dmabuf format modifier query for a given format to support * EGL_EXT_image_dma_buf_import_modifiers. * * \param fourcc The format to query modifiers for. If this format * is not supported by the driver, return false. * \param max Maximum number of modifiers that can be accomodated in * \param modifiers. If zero, no modifiers are returned - * instead, the driver returns the total number of * modifiers for \param format in \param count. * \param modifiers Buffer to fill modifiers into. * \param count Count of the modifiers returned, or, total number of * supported modifiers for \param fourcc in case * \param max is zero. * * Returns true upon success. * * \since 15 */ GLboolean (*queryDmaBufModifiers)(__DRIscreen *screen, int fourcc, int max, uint64_t *modifiers, unsigned int *external_only, int *count); /** * dmabuf format modifier attribute query for a given format and modifier. * * \param fourcc The format to query. If this format is not supported by * the driver, return false. * \param modifier The modifier to query. If this format+modifier is not * supported by the driver, return false. * \param attrib The __DRI_IMAGE_FORMAT_MODIFIER_ATTRIB to query. * \param value A pointer to where to store the result of the query. * * Returns true upon success. * * \since 16 */ GLboolean (*queryDmaBufFormatModifierAttribs)(__DRIscreen *screen, uint32_t fourcc, uint64_t modifier, int attrib, uint64_t *value); /** * Create a DRI image from the given renderbuffer. * * \param context the current DRI context * \param renderbuffer the GL name of the renderbuffer * \param loaderPrivate for callbacks into the loader related to the image * \param error will be set to one of __DRI_IMAGE_ERROR_xxx * \return the newly created image on success, or NULL otherwise * * \since 17 */ __DRIimage *(*createImageFromRenderbuffer2)(__DRIcontext *context, int renderbuffer, void *loaderPrivate, unsigned *error); /* * Like createImageFromDmaBufs2, but with an added flags parameter. * * See __DRI_IMAGE_*_FLAG for valid definitions of flags. * * \since 18 */ __DRIimage *(*createImageFromDmaBufs3)(__DRIscreen *screen, int width, int height, int fourcc, uint64_t modifier, int *fds, int num_fds, int *strides, int *offsets, enum __DRIYUVColorSpace color_space, enum __DRISampleRange sample_range, enum __DRIChromaSiting horiz_siting, enum __DRIChromaSiting vert_siting, uint32_t flags, unsigned *error, void *loaderPrivate); }; /** * 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 2 typedef struct __DRI2configQueryExtensionRec __DRI2configQueryExtension; struct __DRI2configQueryExtensionRec { __DRIextension base; int (*configQueryb)(__DRIscreen *screen, const char *var, unsigned char *val); int (*configQueryi)(__DRIscreen *screen, const char *var, int *val); int (*configQueryf)(__DRIscreen *screen, const char *var, float *val); int (*configQuerys)(__DRIscreen *screen, const char *var, char **val); }; /** * Robust context driver extension. * * Existence of this extension means the driver can accept the * \c __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS flag and the * \c __DRI_CTX_ATTRIB_RESET_STRATEGY attribute in * \c __DRIdri2ExtensionRec::createContextAttribs. */ #define __DRI2_ROBUSTNESS "DRI_Robustness" #define __DRI2_ROBUSTNESS_VERSION 1 typedef struct __DRIrobustnessExtensionRec __DRIrobustnessExtension; struct __DRIrobustnessExtensionRec { __DRIextension base; }; /** * No-error context driver extension. * * Existence of this extension means the driver can accept the * __DRI_CTX_FLAG_NO_ERROR flag. */ #define __DRI2_NO_ERROR "DRI_NoError" #define __DRI2_NO_ERROR_VERSION 1 typedef struct __DRInoErrorExtensionRec { __DRIextension base; } __DRInoErrorExtension; /* * Flush control driver extension. * * Existence of this extension means the driver can accept the * \c __DRI_CTX_ATTRIB_RELEASE_BEHAVIOR attribute in * \c __DRIdri2ExtensionRec::createContextAttribs. */ #define __DRI2_FLUSH_CONTROL "DRI_FlushControl" #define __DRI2_FLUSH_CONTROL_VERSION 1 typedef struct __DRI2flushControlExtensionRec __DRI2flushControlExtension; struct __DRI2flushControlExtensionRec { __DRIextension base; }; /** * DRI config options extension. * * This extension provides the XML string containing driver options for use by * the loader in supporting the driconf application. * * v2: * - Add the getXml getter function which allows the driver more flexibility in * how the XML is provided. * - Deprecate the direct xml pointer. It is only provided as a fallback for * older versions of libGL and must not be used by clients that are aware of * the newer version. Future driver versions may set it to NULL. */ #define __DRI_CONFIG_OPTIONS "DRI_ConfigOptions" #define __DRI_CONFIG_OPTIONS_VERSION 2 typedef struct __DRIconfigOptionsExtensionRec { __DRIextension base; const char *xml; /**< deprecated since v2, use getXml instead */ /** * Get an XML string that describes available driver options for use by a * config application. * * The returned string must be heap-allocated. The caller is responsible for * freeing it. */ char *(*getXml)(const char *driver_name); } __DRIconfigOptionsExtension; /** * This extension provides a driver vtable to a set of common driver helper * functions (driCoreExtension, driDRI2Extension) within the driver * implementation, as opposed to having to pass them through a global * variable. * * It is not intended to be public API to the actual loader, and the vtable * layout may change at any time. */ #define __DRI_DRIVER_VTABLE "DRI_DriverVtable" #define __DRI_DRIVER_VTABLE_VERSION 1 typedef struct __DRIDriverVtableExtensionRec { __DRIextension base; const struct __DriverAPIRec *vtable; } __DRIDriverVtableExtension; /** * Query renderer driver extension * * This allows the window system layer (either EGL or GLX) to query aspects of * hardware and driver support without creating a context. */ #define __DRI2_RENDERER_QUERY "DRI_RENDERER_QUERY" #define __DRI2_RENDERER_QUERY_VERSION 1 #define __DRI2_RENDERER_VENDOR_ID 0x0000 #define __DRI2_RENDERER_DEVICE_ID 0x0001 #define __DRI2_RENDERER_VERSION 0x0002 #define __DRI2_RENDERER_ACCELERATED 0x0003 #define __DRI2_RENDERER_VIDEO_MEMORY 0x0004 #define __DRI2_RENDERER_UNIFIED_MEMORY_ARCHITECTURE 0x0005 #define __DRI2_RENDERER_PREFERRED_PROFILE 0x0006 #define __DRI2_RENDERER_OPENGL_CORE_PROFILE_VERSION 0x0007 #define __DRI2_RENDERER_OPENGL_COMPATIBILITY_PROFILE_VERSION 0x0008 #define __DRI2_RENDERER_OPENGL_ES_PROFILE_VERSION 0x0009 #define __DRI2_RENDERER_OPENGL_ES2_PROFILE_VERSION 0x000a #define __DRI2_RENDERER_HAS_TEXTURE_3D 0x000b /* Whether there is an sRGB format support for every supported 32-bit UNORM * color format. */ #define __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB 0x000c /* Bitmaks of supported/available context priorities - must match * __EGL_CONTEXT_PRIORITY_LOW_BIT et al */ #define __DRI2_RENDERER_HAS_CONTEXT_PRIORITY 0x000d #define __DRI2_RENDERER_HAS_CONTEXT_PRIORITY_LOW (1 << 0) #define __DRI2_RENDERER_HAS_CONTEXT_PRIORITY_MEDIUM (1 << 1) #define __DRI2_RENDERER_HAS_CONTEXT_PRIORITY_HIGH (1 << 2) #define __DRI2_RENDERER_HAS_PROTECTED_CONTENT 0x000e typedef struct __DRI2rendererQueryExtensionRec __DRI2rendererQueryExtension; struct __DRI2rendererQueryExtensionRec { __DRIextension base; int (*queryInteger)(__DRIscreen *screen, int attribute, unsigned int *val); int (*queryString)(__DRIscreen *screen, int attribute, const char **val); }; /** * Image Loader extension. Drivers use this to allocate color buffers */ /** * See __DRIimageLoaderExtensionRec::getBuffers::buffer_mask. */ enum __DRIimageBufferMask { __DRI_IMAGE_BUFFER_BACK = (1 << 0), __DRI_IMAGE_BUFFER_FRONT = (1 << 1), /** * A buffer shared between application and compositor. The buffer may be * simultaneously accessed by each. * * A shared buffer is equivalent to an EGLSurface whose EGLConfig contains * EGL_MUTABLE_RENDER_BUFFER_BIT_KHR and whose active EGL_RENDER_BUFFER (as * opposed to any pending, requested change to EGL_RENDER_BUFFER) is * EGL_SINGLE_BUFFER. * * If buffer_mask contains __DRI_IMAGE_BUFFER_SHARED, then must contains no * other bits. As a corollary, a __DRIdrawable that has a "shared" buffer * has no front nor back buffer. * * The loader returns __DRI_IMAGE_BUFFER_SHARED in buffer_mask if and only * if: * - The loader supports __DRI_MUTABLE_RENDER_BUFFER_LOADER. * - The driver supports __DRI_MUTABLE_RENDER_BUFFER_DRIVER. * - The EGLConfig of the drawable EGLSurface contains * EGL_MUTABLE_RENDER_BUFFER_BIT_KHR. * - The EGLContext's EGL_RENDER_BUFFER is EGL_SINGLE_BUFFER. * Equivalently, the EGLSurface's active EGL_RENDER_BUFFER (as * opposed to any pending, requested change to EGL_RENDER_BUFFER) is * EGL_SINGLE_BUFFER. (See the EGL 1.5 and * EGL_KHR_mutable_render_buffer spec for details about "pending" vs * "active" EGL_RENDER_BUFFER state). * * A shared buffer is similar to a front buffer in that all rendering to the * buffer should appear promptly on the screen. It is different from * a front buffer in that its behavior is independent from the * GL_DRAW_BUFFER state. Specifically, if GL_DRAW_FRAMEBUFFER is 0 and the * __DRIdrawable's buffer_mask is __DRI_IMAGE_BUFFER_SHARED, then all * rendering should appear promptly on the screen if GL_DRAW_BUFFER is not * GL_NONE. * * The difference between a shared buffer and a front buffer is motivated * by the constraints of Android and OpenGL ES. OpenGL ES does not support * front-buffer rendering. Android's SurfaceFlinger protocol provides the * EGL driver only a back buffer and no front buffer. The shared buffer * mode introduced by EGL_KHR_mutable_render_buffer is a backdoor though * EGL that allows Android OpenGL ES applications to render to what is * effectively the front buffer, a backdoor that required no change to the * OpenGL ES API and little change to the SurfaceFlinger API. */ __DRI_IMAGE_BUFFER_SHARED = (1 << 2), }; struct __DRIimageList { uint32_t image_mask; __DRIimage *back; __DRIimage *front; }; #define __DRI_IMAGE_LOADER "DRI_IMAGE_LOADER" #define __DRI_IMAGE_LOADER_VERSION 3 struct __DRIimageLoaderExtensionRec { __DRIextension base; /** * Allocate color buffers. * * \param driDrawable * \param width Width of allocated buffers * \param height Height of allocated buffers * \param format one of __DRI_IMAGE_FORMAT_* * \param stamp Address of variable to be updated when * getBuffers must be called again * \param loaderPrivate The loaderPrivate for driDrawable * \param buffer_mask Set of buffers to allocate. A bitmask of * __DRIimageBufferMask. * \param buffers Returned buffers */ int (*getBuffers)(__DRIdrawable *driDrawable, unsigned int format, uint32_t *stamp, void *loaderPrivate, uint32_t buffer_mask, struct __DRIimageList *buffers); /** * Flush pending front-buffer rendering * * Any rendering that has been performed to the * fake front will be flushed to the front * * \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); /** * Return a loader capability value. If the loader doesn't know the enum, * it will return 0. * * \since 2 */ unsigned (*getCapability)(void *loaderPrivate, enum dri_loader_cap cap); /** * Flush swap buffers * * Make sure any outstanding swap buffers have been submitted to the * device. * * \param driDrawable Drawable whose swaps need to be flushed * \param loaderPrivate Loader's private data that was previously passed * into __DRIdri2ExtensionRec::createNewDrawable * * \since 3 */ void (*flushSwapBuffers)(__DRIdrawable *driDrawable, void *loaderPrivate); }; /** * DRI extension. */ #define __DRI_IMAGE_DRIVER "DRI_IMAGE_DRIVER" #define __DRI_IMAGE_DRIVER_VERSION 1 struct __DRIimageDriverExtensionRec { __DRIextension base; /* Common DRI functions, shared with DRI2 */ __DRIcreateNewScreen2Func createNewScreen2; __DRIcreateNewDrawableFunc createNewDrawable; __DRIcreateContextAttribsFunc createContextAttribs; __DRIgetAPIMaskFunc getAPIMask; }; /** * Background callable loader extension. * * Loaders expose this extension to indicate to drivers that they are capable * of handling callbacks from the driver's background drawing threads. */ #define __DRI_BACKGROUND_CALLABLE "DRI_BackgroundCallable" #define __DRI_BACKGROUND_CALLABLE_VERSION 1 typedef struct __DRIbackgroundCallableExtensionRec __DRIbackgroundCallableExtension; struct __DRIbackgroundCallableExtensionRec { __DRIextension base; /** * Indicate that this thread is being used by the driver as a background * drawing thread which may make callbacks to the loader. * * \param loaderPrivate is the value that was passed to to the driver when * the context was created. This can be used by the loader to identify * which context any callbacks are associated with. * * If this function is called more than once from any given thread, each * subsequent call overrides the loaderPrivate data that was passed in the * previous call. The driver can take advantage of this to re-use a * background thread to perform drawing on behalf of multiple contexts. * * It is permissible for the driver to call this function from a * non-background thread (i.e. a thread that has already been bound to a * context using __DRIcoreExtensionRec::bindContext()); when this happens, * the \c loaderPrivate pointer must be equal to the pointer that was * passed to the driver when the currently bound context was created. * * This call should execute quickly enough that the driver can call it with * impunity whenever a background thread starts performing drawing * operations (e.g. it should just set a thread-local variable). */ void (*setBackgroundContext)(void *loaderPrivate); /** * Indicate that it is multithread safe to use glthread. For GLX/EGL * platforms using Xlib, that involves calling XInitThreads, before * opening an X display. * * Note: only supported if extension version is at least 2. * * \param loaderPrivate is the value that was passed to to the driver when * the context was created. This can be used by the loader to identify * which context any callbacks are associated with. */ GLboolean (*isThreadSafe)(void *loaderPrivate); }; /** * The driver portion of EGL_KHR_mutable_render_buffer. * * If the driver creates a __DRIconfig with * __DRI_ATTRIB_MUTABLE_RENDER_BUFFER, then it must support this extension. * * To support this extension: * * - The driver should create at least one __DRIconfig with * __DRI_ATTRIB_MUTABLE_RENDER_BUFFER. This is strongly recommended but * not required. * * - The driver must be able to handle __DRI_IMAGE_BUFFER_SHARED if * returned by __DRIimageLoaderExtension:getBuffers(). * * - When rendering to __DRI_IMAGE_BUFFER_SHARED, it must call * __DRImutableRenderBufferLoaderExtension::displaySharedBuffer() in * response to glFlush and glFinish. (This requirement is not documented * in EGL_KHR_mutable_render_buffer, but is a de-facto requirement in the * Android ecosystem. Android applications expect that glFlush will * immediately display the buffer when in shared buffer mode, and Android * drivers comply with this expectation). It :may: call * displaySharedBuffer() more often than required. * * - When rendering to __DRI_IMAGE_BUFFER_SHARED, it must ensure that the * buffer is always in a format compatible for display because the * display engine (usually SurfaceFlinger or hwcomposer) may display the * image at any time, even concurrently with 3D rendering. For example, * display hardware and the GL hardware may be able to access the buffer * simultaneously. In particular, if the buffer is compressed then take * care that SurfaceFlinger and hwcomposer can consume the compression * format. * * \see __DRI_IMAGE_BUFFER_SHARED * \see __DRI_ATTRIB_MUTABLE_RENDER_BUFFER * \see __DRI_MUTABLE_RENDER_BUFFER_LOADER */ #define __DRI_MUTABLE_RENDER_BUFFER_DRIVER "DRI_MutableRenderBufferDriver" #define __DRI_MUTABLE_RENDER_BUFFER_DRIVER_VERSION 1 typedef struct __DRImutableRenderBufferDriverExtensionRec __DRImutableRenderBufferDriverExtension; struct __DRImutableRenderBufferDriverExtensionRec { __DRIextension base; }; /** * The loader portion of EGL_KHR_mutable_render_buffer. * * Requires loader extension DRI_IMAGE_LOADER, through which the loader sends * __DRI_IMAGE_BUFFER_SHARED to the driver. * * \see __DRI_MUTABLE_RENDER_BUFFER_DRIVER */ #define __DRI_MUTABLE_RENDER_BUFFER_LOADER "DRI_MutableRenderBufferLoader" #define __DRI_MUTABLE_RENDER_BUFFER_LOADER_VERSION 1 typedef struct __DRImutableRenderBufferLoaderExtensionRec __DRImutableRenderBufferLoaderExtension; struct __DRImutableRenderBufferLoaderExtensionRec { __DRIextension base; /** * Inform the display engine (that is, SurfaceFlinger and/or hwcomposer) * that the __DRIdrawable has new content. * * The display engine may ignore this call, for example, if it continually * refreshes and displays the buffer on every frame, as in * EGL_ANDROID_front_buffer_auto_refresh. On the other extreme, the display * engine may refresh and display the buffer only in frames in which the * driver calls this. * * If the fence_fd is not -1, then the display engine will display the * buffer only after the fence signals. * * The drawable's current __DRIimageBufferMask, as returned by * __DRIimageLoaderExtension::getBuffers(), must be * __DRI_IMAGE_BUFFER_SHARED. */ void (*displaySharedBuffer)(__DRIdrawable *drawable, int fence_fd, void *loaderPrivate); }; #endif