/* * 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 /* 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 #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 #define __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE 48 /* __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 2 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); }; /** * 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 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 3 #define __DRI_API_OPENGL 0 /**< OpenGL compatibility profile */ #define __DRI_API_GLES 1 #define __DRI_API_GLES2 2 #define __DRI_API_OPENGL_CORE 3 /**< OpenGL 3.2+ core profile */ #define __DRI_CTX_ATTRIB_MAJOR_VERSION 0 #define __DRI_CTX_ATTRIB_MINOR_VERSION 1 #define __DRI_CTX_ATTRIB_FLAGS 2 #define __DRI_CTX_FLAG_DEBUG 0x00000001 #define __DRI_CTX_FLAG_FORWARD_COMPATIBLE 0x00000002 /** * \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); __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); __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 */ __DRIcontext *(*createContextAttribs)(__DRIscreen *screen, int api, const __DRIconfig *config, __DRIcontext *shared, unsigned num_attribs, const uint32_t *attribs, unsigned *error, void *loaderPrivate); }; /** * 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 #define __DRI_IMAGE_USE_CURSOR 0x0004 /** * 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); /** * The new __DRIimage will share the content with the old one, see dup(2). */ __DRIimage *(*dupImage)(__DRIimage *image, 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 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