svn merge ^/branches/released .

1 files changed, 889 insertions, 881 deletions

diff --git a/mesalib/include/GL/internal/dri_interface.h b/mesalib/include/GL/internal/dri_interface.h
index e4ae1e7e4..8098a2eb9 100644
--- a/mesalib/include/GL/internal/dri_interface.h
+++ b/mesalib/include/GL/internal/dri_interface.h
@@ -1,881 +1,889 @@
-/*
- * 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__) || defined(_MSC_VER)
-#ifndef __NOT_HAVE_DRM_H
-#define __NOT_HAVE_DRM_H
-#endif
-#endif
-
-#ifndef __NOT_HAVE_DRM_H
-#include <drm.h>
-#else
-typedef unsigned int drm_context_t;
-typedef unsigned int drm_drawable_t;
-typedef struct drm_clip_rect drm_clip_rect_t;
-#endif
-
-/**
- * \name DRI interface structures
- *
- * The following structures define the interface between the GLX client
- * side library and the DRI (direct rendering infrastructure).
- */
-/*@{*/
-typedef struct __DRIdisplayRec		__DRIdisplay;
-typedef struct __DRIscreenRec		__DRIscreen;
-typedef struct __DRIcontextRec		__DRIcontext;
-typedef struct __DRIdrawableRec		__DRIdrawable;
-typedef struct __DRIconfigRec		__DRIconfig;
-typedef struct __DRIframebufferRec	__DRIframebuffer;
-typedef struct __DRIversionRec		__DRIversion;
-
-typedef struct __DRIcoreExtensionRec		__DRIcoreExtension;
-typedef struct __DRIextensionRec		__DRIextension;
-typedef struct __DRIcopySubBufferExtensionRec	__DRIcopySubBufferExtension;
-typedef struct __DRIswapControlExtensionRec	__DRIswapControlExtension;
-typedef struct __DRIframeTrackingExtensionRec	__DRIframeTrackingExtension;
-typedef struct __DRImediaStreamCounterExtensionRec	__DRImediaStreamCounterExtension;
-typedef struct __DRItexOffsetExtensionRec	__DRItexOffsetExtension;
-typedef struct __DRItexBufferExtensionRec	__DRItexBufferExtension;
-typedef struct __DRIlegacyExtensionRec		__DRIlegacyExtension;
-typedef struct __DRIswrastExtensionRec		__DRIswrastExtension;
-typedef struct __DRIbufferRec			__DRIbuffer;
-typedef struct __DRIdri2ExtensionRec		__DRIdri2Extension;
-typedef struct __DRIdri2LoaderExtensionRec	__DRIdri2LoaderExtension;
-typedef struct __DRI2flushExtensionRec	__DRI2flushExtension;
-
-/*@}*/
-
-
-/**
- * Extension struct.  Drivers 'inherit' from this struct by embedding
- * it as the first element in the extension struct.
- *
- * We never break API in for a DRI extension.  If we need to change
- * the way things work in a non-backwards compatible manner, we
- * introduce a new extension.  During a transition period, we can
- * leave both the old and the new extension in the driver, which
- * allows us to move to the new interface without having to update the
- * loader(s) in lock step.
- *
- * However, we can add entry points to an extension over time as long
- * as we don't break the old ones.  As we add entry points to an
- * extension, we increase the version number.  The corresponding
- * #define can be used to guard code that accesses the new entry
- * points at compile time and the version field in the extension
- * struct can be used at run-time to determine how to use the
- * extension.
- */
-struct __DRIextensionRec {
-    const char *name;
-    int version;
-};
-
-/**
- * The first set of extension are the screen extensions, returned by
- * __DRIcore::getExtensions().  This entry point will return a list of
- * extensions and the loader can use the ones it knows about by
- * casting them to more specific extensions and advertising any GLX
- * extensions the DRI extensions enables.
- */
-
-/**
- * Used by drivers to indicate support for setting the read drawable.
- */
-#define __DRI_READ_DRAWABLE "DRI_ReadDrawable"
-#define __DRI_READ_DRAWABLE_VERSION 1
-
-/**
- * Used by drivers that implement the GLX_MESA_copy_sub_buffer extension.
- */
-#define __DRI_COPY_SUB_BUFFER "DRI_CopySubBuffer"
-#define __DRI_COPY_SUB_BUFFER_VERSION 1
-struct __DRIcopySubBufferExtensionRec {
-    __DRIextension base;
-    void (*copySubBuffer)(__DRIdrawable *drawable, int x, int y, int w, int h);
-};
-
-/**
- * Used by drivers that implement the GLX_SGI_swap_control or
- * GLX_MESA_swap_control extension.
- */
-#define __DRI_SWAP_CONTROL "DRI_SwapControl"
-#define __DRI_SWAP_CONTROL_VERSION 1
-struct __DRIswapControlExtensionRec {
-    __DRIextension base;
-    void (*setSwapInterval)(__DRIdrawable *drawable, unsigned int inteval);
-    unsigned int (*getSwapInterval)(__DRIdrawable *drawable);
-};
-
-/**
- * Used by drivers that implement the GLX_MESA_swap_frame_usage extension.
- */
-#define __DRI_FRAME_TRACKING "DRI_FrameTracking"
-#define __DRI_FRAME_TRACKING_VERSION 1
-struct __DRIframeTrackingExtensionRec {
-    __DRIextension base;
-
-    /**
-     * Enable or disable frame usage tracking.
-     * 
-     * \since Internal API version 20030317.
-     */
-    int (*frameTracking)(__DRIdrawable *drawable, GLboolean enable);
-
-    /**
-     * Retrieve frame usage information.
-     * 
-     * \since Internal API version 20030317.
-     */
-    int (*queryFrameTracking)(__DRIdrawable *drawable,
-			      int64_t * sbc, int64_t * missedFrames,
-			      float * lastMissedUsage, float * usage);
-};
-
-
-/**
- * Used by drivers that implement the GLX_SGI_video_sync extension.
- */
-#define __DRI_MEDIA_STREAM_COUNTER "DRI_MediaStreamCounter"
-#define __DRI_MEDIA_STREAM_COUNTER_VERSION 1
-struct __DRImediaStreamCounterExtensionRec {
-    __DRIextension base;
-
-    /**
-     * Wait for the MSC to equal target_msc, or, if that has already passed,
-     * the next time (MSC % divisor) is equal to remainder.  If divisor is
-     * zero, the function will return as soon as MSC is greater than or equal
-     * to target_msc.
-     */
-    int (*waitForMSC)(__DRIdrawable *drawable,
-		      int64_t target_msc, int64_t divisor, int64_t remainder,
-		      int64_t * msc, int64_t * sbc);
-
-    /**
-     * Get the number of vertical refreshes since some point in time before
-     * this function was first called (i.e., system start up).
-     */
-    int (*getDrawableMSC)(__DRIscreen *screen, __DRIdrawable *drawable,
-			  int64_t *msc);
-};
-
-
-#define __DRI_TEX_OFFSET "DRI_TexOffset"
-#define __DRI_TEX_OFFSET_VERSION 1
-struct __DRItexOffsetExtensionRec {
-    __DRIextension base;
-
-    /**
-     * Method to override base texture image with a driver specific 'offset'.
-     * The depth passed in allows e.g. to ignore the alpha channel of texture
-     * images where the non-alpha components don't occupy a whole texel.
-     *
-     * For GLX_EXT_texture_from_pixmap with AIGLX.
-     */
-    void (*setTexOffset)(__DRIcontext *pDRICtx, GLint texname,
-			 unsigned long long offset, GLint depth, GLuint pitch);
-};
-
-
-/* Valid values for format in the setTexBuffer2 function below.  These
- * values match the GLX tokens for compatibility reasons, but we
- * define them here since the DRI interface can't depend on GLX. */
-#define __DRI_TEXTURE_FORMAT_NONE        0x20D8
-#define __DRI_TEXTURE_FORMAT_RGB         0x20D9
-#define __DRI_TEXTURE_FORMAT_RGBA        0x20DA
-
-#define __DRI_TEX_BUFFER "DRI_TexBuffer"
-#define __DRI_TEX_BUFFER_VERSION 2
-struct __DRItexBufferExtensionRec {
-    __DRIextension base;
-
-    /**
-     * Method to override base texture image with the contents of a
-     * __DRIdrawable. 
-     *
-     * For GLX_EXT_texture_from_pixmap with AIGLX.  Deprecated in favor of
-     * setTexBuffer2 in version 2 of this interface
-     */
-    void (*setTexBuffer)(__DRIcontext *pDRICtx,
-			 GLint target,
-			 __DRIdrawable *pDraw);
-
-    /**
-     * Method to override base texture image with the contents of a
-     * __DRIdrawable, including the required texture format attribute.
-     *
-     * For GLX_EXT_texture_from_pixmap with AIGLX.
-     */
-    void (*setTexBuffer2)(__DRIcontext *pDRICtx,
-			  GLint target,
-			  GLint format,
-			  __DRIdrawable *pDraw);
-    /**
-     * Method to release texture buffer in case some special platform
-     * need this.
-     *
-     * For GLX_EXT_texture_from_pixmap with AIGLX.
-     */
-    void (*releaseTexBuffer)(__DRIcontext *pDRICtx,
-			GLint target,
-			__DRIdrawable *pDraw);
-};
-
-/**
- * Used by drivers that implement DRI2
- */
-#define __DRI2_FLUSH "DRI2_Flush"
-#define __DRI2_FLUSH_VERSION 3
-struct __DRI2flushExtensionRec {
-    __DRIextension base;
-    void (*flush)(__DRIdrawable *drawable);
-
-    /**
-     * Ask the driver to call getBuffers/getBuffersWithFormat before
-     * it starts rendering again.
-     *
-     * \param drawable the drawable to invalidate
-     *
-     * \since 3
-     */
-    void (*invalidate)(__DRIdrawable *drawable);
-};
-
-
-/**
- * XML document describing the configuration options supported by the
- * driver.
- */
-extern const char __driConfigOptions[];
-
-/*@}*/
-
-/**
- * The following extensions describe loader features that the DRI
- * driver can make use of.  Some of these are mandatory, such as the
- * getDrawableInfo extension for DRI and the DRI Loader extensions for
- * DRI2, while others are optional, and if present allow the driver to
- * expose certain features.  The loader pass in a NULL terminated
- * array of these extensions to the driver in the createNewScreen
- * constructor.
- */
-
-typedef struct __DRIgetDrawableInfoExtensionRec __DRIgetDrawableInfoExtension;
-typedef struct __DRIsystemTimeExtensionRec __DRIsystemTimeExtension;
-typedef struct __DRIdamageExtensionRec __DRIdamageExtension;
-typedef struct __DRIloaderExtensionRec __DRIloaderExtension;
-typedef struct __DRIswrastLoaderExtensionRec __DRIswrastLoaderExtension;
-
-
-/**
- * Callback to getDrawableInfo protocol
- */
-#define __DRI_GET_DRAWABLE_INFO "DRI_GetDrawableInfo"
-#define __DRI_GET_DRAWABLE_INFO_VERSION 1
-struct __DRIgetDrawableInfoExtensionRec {
-    __DRIextension base;
-
-    /**
-     * This function is used to get information about the position, size, and
-     * clip rects of a drawable.
-     */
-    GLboolean (* getDrawableInfo) ( __DRIdrawable *drawable,
-	unsigned int * index, unsigned int * stamp,
-        int * x, int * y, int * width, int * height,
-        int * numClipRects, drm_clip_rect_t ** pClipRects,
-        int * backX, int * backY,
-	int * numBackClipRects, drm_clip_rect_t ** pBackClipRects,
-	void *loaderPrivate);
-};
-
-typedef int int32_t;
-
-/**
- * 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 */
-
-struct __DRIbufferRec {
-    unsigned int attachment;
-    unsigned int name;
-    unsigned int pitch;
-    unsigned int cpp;
-    unsigned int flags;
-};
-
-#define __DRI_DRI2_LOADER "DRI_DRI2Loader"
-#define __DRI_DRI2_LOADER_VERSION 3
-struct __DRIdri2LoaderExtensionRec {
-    __DRIextension base;
-
-    __DRIbuffer *(*getBuffers)(__DRIdrawable *driDrawable,
-			       int *width, int *height,
-			       unsigned int *attachments, int count,
-			       int *out_count, void *loaderPrivate);
-
-    /**
-     * Flush pending front-buffer rendering
-     *
-     * Any rendering that has been performed to the
-     * \c __DRI_BUFFER_FAKE_FRONT_LEFT will be flushed to the
-     * \c __DRI_BUFFER_FRONT_LEFT.
-     *
-     * \param driDrawable    Drawable whose front-buffer is to be flushed
-     * \param loaderPrivate  Loader's private data that was previously passed
-     *                       into __DRIdri2ExtensionRec::createNewDrawable
-     */
-    void (*flushFrontBuffer)(__DRIdrawable *driDrawable, void *loaderPrivate);
-
-
-    /**
-     * Get list of buffers from the server
-     *
-     * Gets a list of buffer for the specified set of attachments.  Unlike
-     * \c ::getBuffers, this function takes a list of attachments paired with
-     * opaque \c unsigned \c int value describing the format of the buffer.
-     * It is the responsibility of the caller to know what the service that
-     * allocates the buffers will expect to receive for the format.
-     *
-     * \param driDrawable    Drawable whose buffers are being queried.
-     * \param width          Output where the width of the buffers is stored.
-     * \param height         Output where the height of the buffers is stored.
-     * \param attachments    List of pairs of attachment ID and opaque format
-     *                       requested for the drawable.
-     * \param count          Number of attachment / format pairs stored in
-     *                       \c attachments.
-     * \param loaderPrivate  Loader's private data that was previously passed
-     *                       into __DRIdri2ExtensionRec::createNewDrawable.
-     */
-    __DRIbuffer *(*getBuffersWithFormat)(__DRIdrawable *driDrawable,
-					 int *width, int *height,
-					 unsigned int *attachments, int count,
-					 int *out_count, void *loaderPrivate);
-};
-
-/**
- * This extension provides alternative screen, drawable and context
- * constructors for DRI2.
- */
-#define __DRI_DRI2 "DRI_DRI2"
-#define __DRI_DRI2_VERSION 2
-
-#define __DRI_API_OPENGL	0
-#define __DRI_API_GLES		1
-#define __DRI_API_GLES2		2
-
-struct __DRIdri2ExtensionRec {
-    __DRIextension base;
-
-    __DRIscreen *(*createNewScreen)(int screen, int fd,
-				    const __DRIextension **extensions,
-				    const __DRIconfig ***driver_configs,
-				    void *loaderPrivate);
-
-    __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
-					const __DRIconfig *config,
-					void *loaderPrivate);
-
-    __DRIcontext *(*createNewContext)(__DRIscreen *screen,
-				      const __DRIconfig *config,
-				      __DRIcontext *shared,
-				      void *loaderPrivate);
-
-   /* Since version 2 */
-   unsigned int (*getAPIMask)(__DRIscreen *screen);
-
-   __DRIcontext *(*createNewContextForAPI)(__DRIscreen *screen,
-					   int api,
-					   const __DRIconfig *config,
-					   __DRIcontext *shared,
-					   void *data);
-};
-
-
-/**
- * This extension provides functionality to enable various EGLImage
- * extensions.
- */
-#define __DRI_IMAGE "DRI_IMAGE"
-#define __DRI_IMAGE_VERSION 1
-
-/**
- * These formats correspond to the similarly named MESA_FORMAT_*
- * tokens, except in the native endian of the CPU.  For example, on
- * little endian __DRI_IMAGE_FORMAT_XRGB8888 corresponds to
- * MESA_FORMAT_XRGB8888, but MESA_FORMAT_XRGB8888_REV on big endian.
- */
-#define __DRI_IMAGE_FORMAT_RGB565       0x1001
-#define __DRI_IMAGE_FORMAT_XRGB8888     0x1002
-#define __DRI_IMAGE_FORMAT_ARGB8888     0x1003
-
-#define __DRI_IMAGE_USE_SHARE		0x0001
-#define __DRI_IMAGE_USE_SCANOUT		0x0002
-
-/**
- * queryImage attributes
- */
-
-#define __DRI_IMAGE_ATTRIB_STRIDE	0x2000
-#define __DRI_IMAGE_ATTRIB_HANDLE	0x2001
-#define __DRI_IMAGE_ATTRIB_NAME		0x2002
-
-typedef struct __DRIimageRec          __DRIimage;
-typedef struct __DRIimageExtensionRec __DRIimageExtension;
-struct __DRIimageExtensionRec {
-    __DRIextension base;
-
-    __DRIimage *(*createImageFromName)(__DRIscreen *screen,
-				       int width, int height, int format,
-				       int name, int pitch,
-				       void *loaderPrivate);
-
-    __DRIimage *(*createImageFromRenderbuffer)(__DRIcontext *context,
-					       int renderbuffer,
-					       void *loaderPrivate);
-
-    void (*destroyImage)(__DRIimage *image);
-
-    __DRIimage *(*createImage)(__DRIscreen *screen,
-			       int width, int height, int format,
-			       unsigned int use,
-			       void *loaderPrivate);
-
-   GLboolean (*queryImage)(__DRIimage *image, int attrib, int *value);
-};
-
-
-/**
- * This extension must be implemented by the loader and passed to the
- * driver at screen creation time.  The EGLImage entry points in the
- * various client APIs take opaque EGLImage handles and use this
- * extension to map them to a __DRIimage.  At version 1, this
- * extensions allows mapping EGLImage pointers to __DRIimage pointers,
- * but future versions could support other EGLImage-like, opaque types
- * with new lookup functions.
- */
-#define __DRI_IMAGE_LOOKUP "DRI_IMAGE_LOOKUP"
-#define __DRI_IMAGE_LOOKUP_VERSION 1
-
-typedef struct __DRIimageLookupExtensionRec __DRIimageLookupExtension;
-struct __DRIimageLookupExtensionRec {
-    __DRIextension base;
-
-    __DRIimage *(*lookupEGLImage)(__DRIscreen *screen, void *image,
-				  void *loaderPrivate);
-};
-
-/**
- * This extension allows for common DRI2 options
- */
-#define __DRI2_CONFIG_QUERY "DRI_CONFIG_QUERY"
-#define __DRI2_CONFIG_QUERY_VERSION 1
-
-typedef struct __DRI2configQueryExtensionRec __DRI2configQueryExtension;
-struct __DRI2configQueryExtensionRec {
-   __DRIextension base;
-
-   int (*configQueryb)(__DRIscreen *screen, const char *var, GLboolean *val);
-   int (*configQueryi)(__DRIscreen *screen, const char *var, GLint *val);
-   int (*configQueryf)(__DRIscreen *screen, const char *var, GLfloat *val);
-};
-#endif
+/*

+ * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.

+ * Copyright 2007-2008 Red Hat, Inc.

+ * (C) Copyright IBM Corporation 2004

+ * All Rights Reserved.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * on the rights to use, copy, modify, merge, publish, distribute, sub

+ * license, and/or sell copies of the Software, and to permit persons to whom

+ * the Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice (including the next

+ * paragraph) shall be included in all copies or substantial portions of the

+ * Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL

+ * THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,

+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR

+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE

+ * USE OR OTHER DEALINGS IN THE SOFTWARE.

+ */

+

+/**

+ * \file dri_interface.h

+ *

+ * This file contains all the types and functions that define the interface

+ * between a DRI driver and driver loader.  Currently, the most common driver

+ * loader is the XFree86 libGL.so.  However, other loaders do exist, and in

+ * the future the server-side libglx.a will also be a loader.

+ * 

+ * \author Kevin E. Martin <kevin@precisioninsight.com>

+ * \author Ian Romanick <idr@us.ibm.com>

+ * \author Kristian Høgsberg <krh@redhat.com>

+ */

+

+#ifndef DRI_INTERFACE_H

+#define DRI_INTERFACE_H

+

+/* For archs with no drm.h */

+#if defined(__APPLE__) || defined(__CYGWIN__) || defined(__GNU__) || defined(_MSC_VER)

+#ifndef __NOT_HAVE_DRM_H

+#define __NOT_HAVE_DRM_H

+#endif

+#endif

+

+#ifndef __NOT_HAVE_DRM_H

+#include <drm.h>

+#else

+typedef unsigned int drm_context_t;

+typedef unsigned int drm_drawable_t;

+typedef struct drm_clip_rect drm_clip_rect_t;

+#endif

+

+/**

+ * \name DRI interface structures

+ *

+ * The following structures define the interface between the GLX client

+ * side library and the DRI (direct rendering infrastructure).

+ */

+/*@{*/

+typedef struct __DRIdisplayRec		__DRIdisplay;

+typedef struct __DRIscreenRec		__DRIscreen;

+typedef struct __DRIcontextRec		__DRIcontext;

+typedef struct __DRIdrawableRec		__DRIdrawable;

+typedef struct __DRIconfigRec		__DRIconfig;

+typedef struct __DRIframebufferRec	__DRIframebuffer;

+typedef struct __DRIversionRec		__DRIversion;

+

+typedef struct __DRIcoreExtensionRec		__DRIcoreExtension;

+typedef struct __DRIextensionRec		__DRIextension;

+typedef struct __DRIcopySubBufferExtensionRec	__DRIcopySubBufferExtension;

+typedef struct __DRIswapControlExtensionRec	__DRIswapControlExtension;

+typedef struct __DRIframeTrackingExtensionRec	__DRIframeTrackingExtension;

+typedef struct __DRImediaStreamCounterExtensionRec	__DRImediaStreamCounterExtension;

+typedef struct __DRItexOffsetExtensionRec	__DRItexOffsetExtension;

+typedef struct __DRItexBufferExtensionRec	__DRItexBufferExtension;

+typedef struct __DRIlegacyExtensionRec		__DRIlegacyExtension;

+typedef struct __DRIswrastExtensionRec		__DRIswrastExtension;

+typedef struct __DRIbufferRec			__DRIbuffer;

+typedef struct __DRIdri2ExtensionRec		__DRIdri2Extension;

+typedef struct __DRIdri2LoaderExtensionRec	__DRIdri2LoaderExtension;

+typedef struct __DRI2flushExtensionRec	__DRI2flushExtension;

+

+/*@}*/

+

+

+/**

+ * Extension struct.  Drivers 'inherit' from this struct by embedding

+ * it as the first element in the extension struct.

+ *

+ * We never break API in for a DRI extension.  If we need to change

+ * the way things work in a non-backwards compatible manner, we

+ * introduce a new extension.  During a transition period, we can

+ * leave both the old and the new extension in the driver, which

+ * allows us to move to the new interface without having to update the

+ * loader(s) in lock step.

+ *

+ * However, we can add entry points to an extension over time as long

+ * as we don't break the old ones.  As we add entry points to an

+ * extension, we increase the version number.  The corresponding

+ * #define can be used to guard code that accesses the new entry

+ * points at compile time and the version field in the extension

+ * struct can be used at run-time to determine how to use the

+ * extension.

+ */

+struct __DRIextensionRec {

+    const char *name;

+    int version;

+};

+

+/**

+ * The first set of extension are the screen extensions, returned by

+ * __DRIcore::getExtensions().  This entry point will return a list of

+ * extensions and the loader can use the ones it knows about by

+ * casting them to more specific extensions and advertising any GLX

+ * extensions the DRI extensions enables.

+ */

+

+/**

+ * Used by drivers to indicate support for setting the read drawable.

+ */

+#define __DRI_READ_DRAWABLE "DRI_ReadDrawable"

+#define __DRI_READ_DRAWABLE_VERSION 1

+

+/**

+ * Used by drivers that implement the GLX_MESA_copy_sub_buffer extension.

+ */

+#define __DRI_COPY_SUB_BUFFER "DRI_CopySubBuffer"

+#define __DRI_COPY_SUB_BUFFER_VERSION 1

+struct __DRIcopySubBufferExtensionRec {

+    __DRIextension base;

+    void (*copySubBuffer)(__DRIdrawable *drawable, int x, int y, int w, int h);

+};

+

+/**

+ * Used by drivers that implement the GLX_SGI_swap_control or

+ * GLX_MESA_swap_control extension.

+ */

+#define __DRI_SWAP_CONTROL "DRI_SwapControl"

+#define __DRI_SWAP_CONTROL_VERSION 1

+struct __DRIswapControlExtensionRec {

+    __DRIextension base;

+    void (*setSwapInterval)(__DRIdrawable *drawable, unsigned int inteval);

+    unsigned int (*getSwapInterval)(__DRIdrawable *drawable);

+};

+

+/**

+ * Used by drivers that implement the GLX_MESA_swap_frame_usage extension.

+ */

+#define __DRI_FRAME_TRACKING "DRI_FrameTracking"

+#define __DRI_FRAME_TRACKING_VERSION 1

+struct __DRIframeTrackingExtensionRec {

+    __DRIextension base;

+

+    /**

+     * Enable or disable frame usage tracking.

+     * 

+     * \since Internal API version 20030317.

+     */

+    int (*frameTracking)(__DRIdrawable *drawable, GLboolean enable);

+

+    /**

+     * Retrieve frame usage information.

+     * 

+     * \since Internal API version 20030317.

+     */

+    int (*queryFrameTracking)(__DRIdrawable *drawable,

+			      int64_t * sbc, int64_t * missedFrames,

+			      float * lastMissedUsage, float * usage);

+};

+

+

+/**

+ * Used by drivers that implement the GLX_SGI_video_sync extension.

+ */

+#define __DRI_MEDIA_STREAM_COUNTER "DRI_MediaStreamCounter"

+#define __DRI_MEDIA_STREAM_COUNTER_VERSION 1

+struct __DRImediaStreamCounterExtensionRec {

+    __DRIextension base;

+

+    /**

+     * Wait for the MSC to equal target_msc, or, if that has already passed,

+     * the next time (MSC % divisor) is equal to remainder.  If divisor is

+     * zero, the function will return as soon as MSC is greater than or equal

+     * to target_msc.

+     */

+    int (*waitForMSC)(__DRIdrawable *drawable,

+		      int64_t target_msc, int64_t divisor, int64_t remainder,

+		      int64_t * msc, int64_t * sbc);

+

+    /**

+     * Get the number of vertical refreshes since some point in time before

+     * this function was first called (i.e., system start up).

+     */

+    int (*getDrawableMSC)(__DRIscreen *screen, __DRIdrawable *drawable,

+			  int64_t *msc);

+};

+

+

+#define __DRI_TEX_OFFSET "DRI_TexOffset"

+#define __DRI_TEX_OFFSET_VERSION 1

+struct __DRItexOffsetExtensionRec {

+    __DRIextension base;

+

+    /**

+     * Method to override base texture image with a driver specific 'offset'.

+     * The depth passed in allows e.g. to ignore the alpha channel of texture

+     * images where the non-alpha components don't occupy a whole texel.

+     *

+     * For GLX_EXT_texture_from_pixmap with AIGLX.

+     */

+    void (*setTexOffset)(__DRIcontext *pDRICtx, GLint texname,

+			 unsigned long long offset, GLint depth, GLuint pitch);

+};

+

+

+/* Valid values for format in the setTexBuffer2 function below.  These

+ * values match the GLX tokens for compatibility reasons, but we

+ * define them here since the DRI interface can't depend on GLX. */

+#define __DRI_TEXTURE_FORMAT_NONE        0x20D8

+#define __DRI_TEXTURE_FORMAT_RGB         0x20D9

+#define __DRI_TEXTURE_FORMAT_RGBA        0x20DA

+

+#define __DRI_TEX_BUFFER "DRI_TexBuffer"

+#define __DRI_TEX_BUFFER_VERSION 2

+struct __DRItexBufferExtensionRec {

+    __DRIextension base;

+

+    /**

+     * Method to override base texture image with the contents of a

+     * __DRIdrawable. 

+     *

+     * For GLX_EXT_texture_from_pixmap with AIGLX.  Deprecated in favor of

+     * setTexBuffer2 in version 2 of this interface

+     */

+    void (*setTexBuffer)(__DRIcontext *pDRICtx,

+			 GLint target,

+			 __DRIdrawable *pDraw);

+

+    /**

+     * Method to override base texture image with the contents of a

+     * __DRIdrawable, including the required texture format attribute.

+     *

+     * For GLX_EXT_texture_from_pixmap with AIGLX.

+     */

+    void (*setTexBuffer2)(__DRIcontext *pDRICtx,

+			  GLint target,

+			  GLint format,

+			  __DRIdrawable *pDraw);

+    /**

+     * Method to release texture buffer in case some special platform

+     * need this.

+     *

+     * For GLX_EXT_texture_from_pixmap with AIGLX.

+     */

+    void (*releaseTexBuffer)(__DRIcontext *pDRICtx,

+			GLint target,

+			__DRIdrawable *pDraw);

+};

+

+/**

+ * Used by drivers that implement DRI2

+ */

+#define __DRI2_FLUSH "DRI2_Flush"

+#define __DRI2_FLUSH_VERSION 3

+struct __DRI2flushExtensionRec {

+    __DRIextension base;

+    void (*flush)(__DRIdrawable *drawable);

+

+    /**

+     * Ask the driver to call getBuffers/getBuffersWithFormat before

+     * it starts rendering again.

+     *

+     * \param drawable the drawable to invalidate

+     *

+     * \since 3

+     */

+    void (*invalidate)(__DRIdrawable *drawable);

+};

+

+

+/**

+ * XML document describing the configuration options supported by the

+ * driver.

+ */

+extern const char __driConfigOptions[];

+

+/*@}*/

+

+/**

+ * The following extensions describe loader features that the DRI

+ * driver can make use of.  Some of these are mandatory, such as the

+ * getDrawableInfo extension for DRI and the DRI Loader extensions for

+ * DRI2, while others are optional, and if present allow the driver to

+ * expose certain features.  The loader pass in a NULL terminated

+ * array of these extensions to the driver in the createNewScreen

+ * constructor.

+ */

+

+typedef struct __DRIgetDrawableInfoExtensionRec __DRIgetDrawableInfoExtension;

+typedef struct __DRIsystemTimeExtensionRec __DRIsystemTimeExtension;

+typedef struct __DRIdamageExtensionRec __DRIdamageExtension;

+typedef struct __DRIloaderExtensionRec __DRIloaderExtension;

+typedef struct __DRIswrastLoaderExtensionRec __DRIswrastLoaderExtension;

+

+

+/**

+ * Callback to getDrawableInfo protocol

+ */

+#define __DRI_GET_DRAWABLE_INFO "DRI_GetDrawableInfo"

+#define __DRI_GET_DRAWABLE_INFO_VERSION 1

+struct __DRIgetDrawableInfoExtensionRec {

+    __DRIextension base;

+

+    /**

+     * This function is used to get information about the position, size, and

+     * clip rects of a drawable.

+     */

+    GLboolean (* getDrawableInfo) ( __DRIdrawable *drawable,

+	unsigned int * index, unsigned int * stamp,

+        int * x, int * y, int * width, int * height,

+        int * numClipRects, drm_clip_rect_t ** pClipRects,

+        int * backX, int * backY,

+	int * numBackClipRects, drm_clip_rect_t ** pBackClipRects,

+	void *loaderPrivate);

+};

+

+typedef int int32_t;

+

+/**

+ * 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 */

+

+struct __DRIbufferRec {

+    unsigned int attachment;

+    unsigned int name;

+    unsigned int pitch;

+    unsigned int cpp;

+    unsigned int flags;

+};

+

+#define __DRI_DRI2_LOADER "DRI_DRI2Loader"

+#define __DRI_DRI2_LOADER_VERSION 3

+struct __DRIdri2LoaderExtensionRec {

+    __DRIextension base;

+

+    __DRIbuffer *(*getBuffers)(__DRIdrawable *driDrawable,

+			       int *width, int *height,

+			       unsigned int *attachments, int count,

+			       int *out_count, void *loaderPrivate);

+

+    /**

+     * Flush pending front-buffer rendering

+     *

+     * Any rendering that has been performed to the

+     * \c __DRI_BUFFER_FAKE_FRONT_LEFT will be flushed to the

+     * \c __DRI_BUFFER_FRONT_LEFT.

+     *

+     * \param driDrawable    Drawable whose front-buffer is to be flushed

+     * \param loaderPrivate  Loader's private data that was previously passed

+     *                       into __DRIdri2ExtensionRec::createNewDrawable

+     */

+    void (*flushFrontBuffer)(__DRIdrawable *driDrawable, void *loaderPrivate);

+

+

+    /**

+     * Get list of buffers from the server

+     *

+     * Gets a list of buffer for the specified set of attachments.  Unlike

+     * \c ::getBuffers, this function takes a list of attachments paired with

+     * opaque \c unsigned \c int value describing the format of the buffer.

+     * It is the responsibility of the caller to know what the service that

+     * allocates the buffers will expect to receive for the format.

+     *

+     * \param driDrawable    Drawable whose buffers are being queried.

+     * \param width          Output where the width of the buffers is stored.

+     * \param height         Output where the height of the buffers is stored.

+     * \param attachments    List of pairs of attachment ID and opaque format

+     *                       requested for the drawable.

+     * \param count          Number of attachment / format pairs stored in

+     *                       \c attachments.

+     * \param loaderPrivate  Loader's private data that was previously passed

+     *                       into __DRIdri2ExtensionRec::createNewDrawable.

+     */

+    __DRIbuffer *(*getBuffersWithFormat)(__DRIdrawable *driDrawable,

+					 int *width, int *height,

+					 unsigned int *attachments, int count,

+					 int *out_count, void *loaderPrivate);

+};

+

+/**

+ * This extension provides alternative screen, drawable and context

+ * constructors for DRI2.

+ */

+#define __DRI_DRI2 "DRI_DRI2"

+#define __DRI_DRI2_VERSION 2

+

+#define __DRI_API_OPENGL	0

+#define __DRI_API_GLES		1

+#define __DRI_API_GLES2		2

+

+struct __DRIdri2ExtensionRec {

+    __DRIextension base;

+

+    __DRIscreen *(*createNewScreen)(int screen, int fd,

+				    const __DRIextension **extensions,

+				    const __DRIconfig ***driver_configs,

+				    void *loaderPrivate);

+

+    __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,

+					const __DRIconfig *config,

+					void *loaderPrivate);

+

+    __DRIcontext *(*createNewContext)(__DRIscreen *screen,

+				      const __DRIconfig *config,

+				      __DRIcontext *shared,

+				      void *loaderPrivate);

+

+   /* Since version 2 */

+   unsigned int (*getAPIMask)(__DRIscreen *screen);

+

+   __DRIcontext *(*createNewContextForAPI)(__DRIscreen *screen,

+					   int api,

+					   const __DRIconfig *config,

+					   __DRIcontext *shared,

+					   void *data);

+

+   __DRIbuffer *(*allocateBuffer)(__DRIscreen *screen,

+				  unsigned int attachment,

+				  unsigned int format,

+				  int width,

+				  int height);

+   void (*releaseBuffer)(__DRIscreen *screen,

+			 __DRIbuffer *buffer);

+};

+

+

+/**

+ * This extension provides functionality to enable various EGLImage

+ * extensions.

+ */

+#define __DRI_IMAGE "DRI_IMAGE"

+#define __DRI_IMAGE_VERSION 1

+

+/**

+ * These formats correspond to the similarly named MESA_FORMAT_*

+ * tokens, except in the native endian of the CPU.  For example, on

+ * little endian __DRI_IMAGE_FORMAT_XRGB8888 corresponds to

+ * MESA_FORMAT_XRGB8888, but MESA_FORMAT_XRGB8888_REV on big endian.

+ */

+#define __DRI_IMAGE_FORMAT_RGB565       0x1001

+#define __DRI_IMAGE_FORMAT_XRGB8888     0x1002

+#define __DRI_IMAGE_FORMAT_ARGB8888     0x1003

+

+#define __DRI_IMAGE_USE_SHARE		0x0001

+#define __DRI_IMAGE_USE_SCANOUT		0x0002

+

+/**

+ * queryImage attributes

+ */

+

+#define __DRI_IMAGE_ATTRIB_STRIDE	0x2000

+#define __DRI_IMAGE_ATTRIB_HANDLE	0x2001

+#define __DRI_IMAGE_ATTRIB_NAME		0x2002

+

+typedef struct __DRIimageRec          __DRIimage;

+typedef struct __DRIimageExtensionRec __DRIimageExtension;

+struct __DRIimageExtensionRec {

+    __DRIextension base;

+

+    __DRIimage *(*createImageFromName)(__DRIscreen *screen,

+				       int width, int height, int format,

+				       int name, int pitch,

+				       void *loaderPrivate);

+

+    __DRIimage *(*createImageFromRenderbuffer)(__DRIcontext *context,

+					       int renderbuffer,

+					       void *loaderPrivate);

+

+    void (*destroyImage)(__DRIimage *image);

+

+    __DRIimage *(*createImage)(__DRIscreen *screen,

+			       int width, int height, int format,

+			       unsigned int use,

+			       void *loaderPrivate);

+

+   GLboolean (*queryImage)(__DRIimage *image, int attrib, int *value);

+};

+

+

+/**

+ * This extension must be implemented by the loader and passed to the

+ * driver at screen creation time.  The EGLImage entry points in the

+ * various client APIs take opaque EGLImage handles and use this

+ * extension to map them to a __DRIimage.  At version 1, this

+ * extensions allows mapping EGLImage pointers to __DRIimage pointers,

+ * but future versions could support other EGLImage-like, opaque types

+ * with new lookup functions.

+ */

+#define __DRI_IMAGE_LOOKUP "DRI_IMAGE_LOOKUP"

+#define __DRI_IMAGE_LOOKUP_VERSION 1

+

+typedef struct __DRIimageLookupExtensionRec __DRIimageLookupExtension;

+struct __DRIimageLookupExtensionRec {

+    __DRIextension base;

+

+    __DRIimage *(*lookupEGLImage)(__DRIscreen *screen, void *image,

+				  void *loaderPrivate);

+};

+

+/**

+ * This extension allows for common DRI2 options

+ */

+#define __DRI2_CONFIG_QUERY "DRI_CONFIG_QUERY"

+#define __DRI2_CONFIG_QUERY_VERSION 1

+

+typedef struct __DRI2configQueryExtensionRec __DRI2configQueryExtension;

+struct __DRI2configQueryExtensionRec {

+   __DRIextension base;

+

+   int (*configQueryb)(__DRIscreen *screen, const char *var, GLboolean *val);

+   int (*configQueryi)(__DRIscreen *screen, const char *var, GLint *val);

+   int (*configQueryf)(__DRIscreen *screen, const char *var, GLfloat *val);

+};

+#endif