Add 'infra/libkookie/' from commit 'd661aa56a8843e991261510c1bb28fdc2f6975ae'

git-subtree-dir: infra/libkookie
git-subtree-mainline: 49f735974dd103039ddc4cb576bb76555164a9e7
git-subtree-split: d661aa56a8843e991261510c1bb28fdc2f6975ae

1 files changed, 1409 insertions, 0 deletions

diff --git a/infra/libkookie/nixpkgs/pkgs/servers/x11/xorg/darwin/dri/GL/internal/dri_interface.h b/infra/libkookie/nixpkgs/pkgs/servers/x11/xorg/darwin/dri/GL/internal/dri_interface.h
new file mode 100644
index 000000000000..b012570ae133
--- /dev/null
+++ b/infra/libkookie/nixpkgs/pkgs/servers/x11/xorg/darwin/dri/GL/internal/dri_interface.h
@@ -0,0 +1,1409 @@
+/*
+ * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2007-2008 Red Hat, Inc.
+ * (C) Copyright IBM Corporation 2004
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file dri_interface.h
+ *
+ * This file contains all the types and functions that define the interface
+ * between a DRI driver and driver loader.  Currently, the most common driver
+ * loader is the XFree86 libGL.so.  However, other loaders do exist, and in
+ * the future the server-side libglx.a will also be a loader.
+ * 
+ * \author Kevin E. Martin <kevin@precisioninsight.com>
+ * \author Ian Romanick <idr@us.ibm.com>
+ * \author Kristian Høgsberg <krh@redhat.com>
+ */
+
+#ifndef DRI_INTERFACE_H
+#define DRI_INTERFACE_H
+
+/* For archs with no drm.h */
+#if defined(__APPLE__) || defined(__CYGWIN__) || defined(__GNU__)
+#ifndef __NOT_HAVE_DRM_H
+#define __NOT_HAVE_DRM_H
+#endif
+#endif
+
+#ifndef __NOT_HAVE_DRM_H
+#include <drm.h>
+#else
+typedef unsigned int drm_context_t;
+typedef unsigned int drm_drawable_t;
+typedef struct drm_clip_rect drm_clip_rect_t;
+#endif
+
+/**
+ * \name DRI interface structures
+ *
+ * The following structures define the interface between the GLX client
+ * side library and the DRI (direct rendering infrastructure).
+ */
+/*@{*/
+typedef struct __DRIdisplayRec		__DRIdisplay;
+typedef struct __DRIscreenRec		__DRIscreen;
+typedef struct __DRIcontextRec		__DRIcontext;
+typedef struct __DRIdrawableRec		__DRIdrawable;
+typedef struct __DRIconfigRec		__DRIconfig;
+typedef struct __DRIframebufferRec	__DRIframebuffer;
+typedef struct __DRIversionRec		__DRIversion;
+
+typedef struct __DRIcoreExtensionRec		__DRIcoreExtension;
+typedef struct __DRIextensionRec		__DRIextension;
+typedef struct __DRIcopySubBufferExtensionRec	__DRIcopySubBufferExtension;
+typedef struct __DRIswapControlExtensionRec	__DRIswapControlExtension;
+typedef struct __DRIframeTrackingExtensionRec	__DRIframeTrackingExtension;
+typedef struct __DRImediaStreamCounterExtensionRec	__DRImediaStreamCounterExtension;
+typedef struct __DRItexOffsetExtensionRec	__DRItexOffsetExtension;
+typedef struct __DRItexBufferExtensionRec	__DRItexBufferExtension;
+typedef struct __DRIlegacyExtensionRec		__DRIlegacyExtension;
+typedef struct __DRIswrastExtensionRec		__DRIswrastExtension;
+typedef struct __DRIbufferRec			__DRIbuffer;
+typedef struct __DRIdri2ExtensionRec		__DRIdri2Extension;
+typedef struct __DRIdri2LoaderExtensionRec	__DRIdri2LoaderExtension;
+typedef struct __DRI2flushExtensionRec	__DRI2flushExtension;
+typedef struct __DRI2throttleExtensionRec	__DRI2throttleExtension;
+
+
+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 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 4
+
+#define __DRI2_FLUSH_DRAWABLE (1 << 0) /* the drawable should be flushed. */
+#define __DRI2_FLUSH_CONTEXT  (1 << 1) /* glFlush should be called */
+
+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);
+};
+
+/*@}*/
+
+/**
+ * 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"
+
+/**
+ * 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
+
+/* __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
+
+/**
+ * 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 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 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 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
+
+/**
+ * \name Context reset strategies.
+ */
+/*@{*/
+#define __DRI_CTX_RESET_NO_NOTIFICATION		0
+#define __DRI_CTX_RESET_LOSE_CONTEXT		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 8
+
+/**
+ * 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 createImageFormName 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_USE_SHARE		0x0001
+#define __DRI_IMAGE_USE_SCANOUT		0x0002
+#define __DRI_IMAGE_USE_CURSOR		0x0004 /* Depricated */
+#define __DRI_IMAGE_USE_LINEAR		0x0008
+
+
+/**
+ * Four CC formats that matches with WL_DRM_FORMAT_* from wayland_drm.h
+ * and GBM_FORMAT_* from gbm.h, used with createImageFromNames.
+ *
+ * \since 5
+ */
+
+#define __DRI_IMAGE_FOURCC_RGB565	0x36314752
+#define __DRI_IMAGE_FOURCC_ARGB8888	0x34325241
+#define __DRI_IMAGE_FOURCC_XRGB8888	0x34325258
+#define __DRI_IMAGE_FOURCC_ABGR8888	0x34324241
+#define __DRI_IMAGE_FOURCC_XBGR8888	0x34324258
+#define __DRI_IMAGE_FOURCC_YUV410	0x39565559
+#define __DRI_IMAGE_FOURCC_YUV411	0x31315559
+#define __DRI_IMAGE_FOURCC_YUV420	0x32315559
+#define __DRI_IMAGE_FOURCC_YUV422	0x36315559
+#define __DRI_IMAGE_FOURCC_YUV444	0x34325559
+#define __DRI_IMAGE_FOURCC_NV12		0x3231564e
+#define __DRI_IMAGE_FOURCC_NV16		0x3631564e
+#define __DRI_IMAGE_FOURCC_YUYV		0x56595559
+
+
+/**
+ * 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 and Y_XUXV 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
+
+
+/**
+ * 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. */
+
+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 might fail
+ */
+/*@{*/
+/** Success! */
+#define __DRI_IMAGE_ERROR_SUCCESS       0
+
+/** Memory allocation failure */
+#define __DRI_IMAGE_ERROR_BAD_ALLOC     1
+
+/** Client requested an invalid attribute for a texture object  */
+#define __DRI_IMAGE_ERROR_BAD_MATCH     2
+
+/** Client requested an invalid texture object */
+#define __DRI_IMAGE_ERROR_BAD_PARAMETER 3
+/*@}*/
+
+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);
+
+   /**
+    * 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 but instead
+    * __DRI_IMAGE_FOURCC 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);
+};
+
+
+/**
+ * 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);
+};
+
+/**
+ * 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;
+};
+
+/**
+ * DRI config options extension.
+ *
+ * This extension provides the XML string containing driver options for use by
+ * the loader in supporting the driconf application.
+ */
+#define __DRI_CONFIG_OPTIONS "DRI_ConfigOptions"
+#define __DRI_CONFIG_OPTIONS_VERSION 1
+
+typedef struct __DRIconfigOptionsExtensionRec {
+   __DRIextension base;
+   const char *xml;
+} __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
+
+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
+ */
+
+enum __DRIimageBufferMask {
+   __DRI_IMAGE_BUFFER_BACK = (1 << 0),
+   __DRI_IMAGE_BUFFER_FRONT = (1 << 1)
+};
+
+struct __DRIimageList {
+   uint32_t image_mask;
+   __DRIimage *back;
+   __DRIimage *front;
+};
+
+#define __DRI_IMAGE_LOADER "DRI_IMAGE_LOADER"
+#define __DRI_IMAGE_LOADER_VERSION 1
+
+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
+    * \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);
+};
+
+/**
+ * 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;
+};
+
+#endif