revert the DRI2 commits

1 files changed, 341 insertions, 453 deletions

diff --git a/include/GL/internal/dri_interface.h b/include/GL/internal/dri_interface.h
index 033d7a4ae44..8d24e311f84 100644
--- a/include/GL/internal/dri_interface.h
+++ b/include/GL/internal/dri_interface.h
@@ -1,6 +1,5 @@
 /*
  * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
- * Copyright 2007-2008 Red Hat, Inc.
  * (C) Copyright IBM Corporation 2004
  * All Rights Reserved.
  *
@@ -34,12 +33,12 @@
  * 
  * \author Kevin E. Martin <[email protected]>
  * \author Ian Romanick <[email protected]>
- * \author Kristian Høgsberg <[email protected]>
  */
 
 #ifndef DRI_INTERFACE_H
 #define DRI_INTERFACE_H
 
+#include <GL/internal/glcore.h>
 #include <drm.h>
 
 /**
@@ -49,247 +48,181 @@
  * 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 __DRIallocateExtensionRec	__DRIallocateExtension;
-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 __DRIdisplayRec  __DRIdisplay;
+typedef struct __DRIscreenRec   __DRIscreen;
+typedef struct __DRIcontextRec  __DRIcontext;
+typedef struct __DRIdrawableRec __DRIdrawable;
+typedef struct __DRIdriverRec   __DRIdriver;
+typedef struct __DRIframebufferRec __DRIframebuffer;
+typedef struct __DRIversionRec     __DRIversion;
+typedef struct __DRIinterfaceMethodsRec  __DRIinterfaceMethods;
+typedef unsigned long __DRIid;
+typedef void __DRInativeDisplay;
 /*@}*/
 
 
 /**
- * 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.
+ * \name Functions provided by the driver loader.
  */
-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.
+ * Type of a pointer to \c glXGetScreenDriver, as returned by
+ * \c glXGetProcAddress.  This function is used to get the name of the DRI
+ * driver for the specified screen of the specified display.  The driver
+ * name is typically used with \c glXGetDriverConfig.
+ *
+ * \sa glXGetScreenDriver, glXGetProcAddress, glXGetDriverConfig
  */
+typedef const char * (* PFNGLXGETSCREENDRIVERPROC) (__DRInativeDisplay *dpy, int scrNum);
 
 /**
- * Used by drivers to indicate support for setting the read drawable.
+ * Type of a pointer to \c glXGetDriverConfig, as returned by
+ * \c glXGetProcAddress.  This function is used to get the XML document
+ * describing the configuration options available for the specified driver.
+ *
+ * \sa glXGetDriverConfig, glXGetProcAddress, glXGetScreenDriver
  */
-#define __DRI_READ_DRAWABLE "DRI_ReadDrawable"
-#define __DRI_READ_DRAWABLE_VERSION 1
+typedef const char * (* PFNGLXGETDRIVERCONFIGPROC) (const char *driverName);
 
 /**
- * Used by drivers that implement the GLX_MESA_copy_sub_buffer extension.
+ * Type of a pointer to \c glxEnableExtension, as returned by
+ * \c __DRIinterfaceMethods::getProcAddress.  This function is used to enable
+ * a GLX extension on the specified screen.
  */
-#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);
-};
+typedef void (* PFNGLXSCRENABLEEXTENSIONPROC) ( void *psc, const char * name );
+/*@}*/
 
-/**
- * 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_allocate_memory.
+ * \name Functions and data provided by the driver.
  */
-#define __DRI_ALLOCATE "DRI_Allocate"
-#define __DRI_ALLOCATE_VERSION 1
-struct __DRIallocateExtensionRec {
-    __DRIextension base;
+/*@{*/
+
+typedef void *(CREATENEWSCREENFUNC)(__DRInativeDisplay *dpy, int scrn,
+    __DRIscreen *psc, const __GLcontextModes * modes,
+    const __DRIversion * ddx_version, const __DRIversion * dri_version,
+    const __DRIversion * drm_version, const __DRIframebuffer * frame_buffer,
+    void * pSAREA, int fd, int internal_api_version,
+    const __DRIinterfaceMethods * interface,
+    __GLcontextModes ** driver_modes);
+typedef CREATENEWSCREENFUNC* PFNCREATENEWSCREENFUNC;
+extern CREATENEWSCREENFUNC __driCreateNewScreen_20050727;
 
-    void *(*allocateMemory)(__DRIscreen *screen, GLsizei size,
-			    GLfloat readfreq, GLfloat writefreq,
-			    GLfloat priority);
-   
-    void (*freeMemory)(__DRIscreen *screen, GLvoid *pointer);
-   
-    GLuint (*memoryOffset)(__DRIscreen *screen, const GLvoid *pointer);
-};
 
 /**
- * Used by drivers that implement the GLX_MESA_swap_frame_usage extension.
+ * XML document describing the configuration options supported by the
+ * driver.
  */
-#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);
+extern const char __driConfigOptions[];
 
-    /**
-     * 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.
+ * 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.
  */
-#define __DRI_MEDIA_STREAM_COUNTER "DRI_MediaStreamCounter"
-#define __DRI_MEDIA_STREAM_COUNTER_VERSION 1
-struct __DRImediaStreamCounterExtensionRec {
-    __DRIextension base;
+struct __DRIversionRec {
+    int    major;        /**< Major version number. */
+    int    minor;        /**< Minor version number. */
+    int    patch;        /**< Patch-level. */
+};
+
+
+typedef void (*__DRIfuncPtr)(void);
 
+struct __DRIinterfaceMethodsRec {
     /**
-     * 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.
+     * Get pointer to named function.
      */
-    int (*waitForMSC)(__DRIdrawable *drawable,
-		      int64_t target_msc, int64_t divisor, int64_t remainder,
-		      int64_t * msc, int64_t * sbc);
+    __DRIfuncPtr (*getProcAddress)( const char * proc_name );
 
     /**
-     * Get the number of vertical refreshes since some point in time before
-     * this function was first called (i.e., system start up).
+     * Create a list of \c __GLcontextModes structures.
      */
-    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;
+    __GLcontextModes * (*createContextModes)(unsigned count,
+        size_t minimum_bytes_per_struct);
 
     /**
-     * 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.
+     * Destroy a list of \c __GLcontextModes structures.
      *
-     * For GLX_EXT_texture_from_pixmap with AIGLX.
+     * \todo
+     * Determine if the drivers actually need to call this.
      */
-    void (*setTexOffset)(__DRIcontext *pDRICtx, GLint texname,
-			 unsigned long long offset, GLint depth, GLuint pitch);
-};
+    void (*destroyContextModes)( __GLcontextModes * modes );
 
+    /**
+     * Get the \c __DRIscreen for a given display and screen number.
+     */
+    __DRIscreen *(*getScreen)(__DRInativeDisplay *dpy, int screenNum);
 
-#define __DRI_TEX_BUFFER "DRI_TexBuffer"
-#define __DRI_TEX_BUFFER_VERSION 1
-struct __DRItexBufferExtensionRec {
-    __DRIextension base;
 
     /**
-     * Method to override base texture image with the contents of a
-     * __DRIdrawable. 
+     * \name Client/server protocol functions.
      *
-     * For GLX_EXT_texture_from_pixmap with AIGLX.
+     * These functions implement the DRI client/server protocol for
+     * context and drawable operations.  Platforms that do not implement
+     * the wire protocol (e.g., EGL) will implement glorified no-op functions.
      */
-    void (*setTexBuffer)(__DRIcontext *pDRICtx,
-			 GLint target,
-			 __DRIdrawable *pDraw);
-};
-
-
-/**
- * XML document describing the configuration options supported by the
- * driver.
- */
-extern const char __driConfigOptions[];
-
-/*@}*/
+    /*@{*/
+    /**
+     * Determine if the specified window ID still exists.
+     * 
+     * \note
+     * Implementations may assume that the driver will only pass an ID into
+     * this function that actually corresponds to a window.  On
+     * implementations where windows can only be destroyed by the DRI driver
+     * (e.g., EGL), this function is allowed to always return \c GL_TRUE.
+     */
+    GLboolean (*windowExists)(__DRInativeDisplay *dpy, __DRIid draw);
 
-/**
- * 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.
- */
+    /**
+     * Create the server-side portion of the GL context.
+     */
+    GLboolean (* createContext)( __DRInativeDisplay *dpy, int screenNum,
+        int configID, void * contextID, drm_context_t * hw_context );
 
-typedef struct __DRIgetDrawableInfoExtensionRec __DRIgetDrawableInfoExtension;
-typedef struct __DRIsystemTimeExtensionRec __DRIsystemTimeExtension;
-typedef struct __DRIdamageExtensionRec __DRIdamageExtension;
-typedef struct __DRIloaderExtensionRec __DRIloaderExtension;
-typedef struct __DRIswrastLoaderExtensionRec __DRIswrastLoaderExtension;
+    /**
+     * Destroy the server-side portion of the GL context.
+     */
+    GLboolean (* destroyContext)( __DRInativeDisplay *dpy, int screenNum,
+        __DRIid context );
 
+    /**
+     * Create the server-side portion of the drawable.
+     */
+    GLboolean (*createDrawable)( __DRInativeDisplay * ndpy, int screen,
+        __DRIid drawable, drm_drawable_t * hHWDrawable );
 
-/**
- * Callback to getDrawableInfo protocol
- */
-#define __DRI_GET_DRAWABLE_INFO "DRI_GetDrawableInfo"
-#define __DRI_GET_DRAWABLE_INFO_VERSION 1
-struct __DRIgetDrawableInfoExtensionRec {
-    __DRIextension base;
+    /**
+     * Destroy the server-side portion of the drawable.
+     */
+    GLboolean (*destroyDrawable)( __DRInativeDisplay * ndpy, int screen,
+        __DRIid drawable );
 
     /**
      * 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,
+    GLboolean (* getDrawableInfo) ( __DRInativeDisplay *dpy, int scrn,
+        __DRIid draw, 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);
-};
+        int * numBackClipRects, drm_clip_rect_t ** pBackClipRects );
+    /*@}*/
 
-/**
- * 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;
 
     /**
+     * \name Timing related functions.
+     */
+    /*@{*/
+    /**
      * Get the 64-bit unadjusted system time (UST).
      */
     int (*getUST)(int64_t * ust);
@@ -301,18 +234,9 @@ struct __DRIsystemTimeExtensionRec {
      * 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;
+    GLboolean (*getMSCRate)(__DRInativeDisplay * dpy, __DRIid drawable,
+        int32_t * numerator, int32_t * denominator);
+    /*@}*/
 
     /**
      * Reports areas of the given drawable which have been modified by the
@@ -327,221 +251,15 @@ struct __DRIdamageExtensionRec {
      * \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,
+    void (*reportDamage)(__DRInativeDisplay * dpy, int screen,
+			 __DRIid drawable,
 			 int x, int y,
 			 drm_clip_rect_t *rects, int num_rects,
-			 GLboolean front_buffer,
-			 void *loaderPrivate);
-};
-
-/**
- * DRI2 Loader extension.  This extension describes the basic
- * functionality the loader needs to provide for the DRI driver.
- */
-#define __DRI_LOADER "DRI_Loader"
-#define __DRI_LOADER_VERSION 1
-struct __DRIloaderExtensionRec {
-    __DRIextension base;
-
-    /**
-     * Ping the windowing system to get it to reemit info for the
-     * specified drawable in the DRI2 event buffer.
-     *
-     * \param draw the drawable for which to request info
-     * \param tail the new event buffer tail pointer
-     */
-    void (*reemitDrawableInfo)(__DRIdrawable *draw, unsigned int *tail,
-			       void *loaderPrivate);
-
-    void (*postDamage)(__DRIdrawable *draw, struct drm_clip_rect *rects,
-		       int num_rects, 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 drawable
-     */
-    void (*getImage)(__DRIdrawable *drawable,
-		     int x, int y, int width, int height, char *data,
-		     void *loaderPrivate);
-};
-
-/**
- * The remaining extensions describe driver extensions, immediately
- * available interfaces provided by the driver.  To start using the
- * driver, dlsym() for the __DRI_DRIVER_EXTENSIONS symbol and look for
- * the extension you need in the array.
- */
-#define __DRI_DRIVER_EXTENSIONS "__driDriverExtensions"
-
-/**
- * Tokens for __DRIconfig attribs.  A number of attributes defined by
- * GLX or EGL standards are not in the table, as they must be provided
- * by the loader.  For example, FBConfig ID or visual ID, drawable type.
- */
-
-#define __DRI_ATTRIB_BUFFER_SIZE		 1
-#define __DRI_ATTRIB_LEVEL			 2
-#define __DRI_ATTRIB_RED_SIZE			 3
-#define __DRI_ATTRIB_GREEN_SIZE			 4
-#define __DRI_ATTRIB_BLUE_SIZE			 5
-#define __DRI_ATTRIB_LUMINANCE_SIZE		 6
-#define __DRI_ATTRIB_ALPHA_SIZE			 7
-#define __DRI_ATTRIB_ALPHA_MASK_SIZE		 8
-#define __DRI_ATTRIB_DEPTH_SIZE			 9
-#define __DRI_ATTRIB_STENCIL_SIZE		10
-#define __DRI_ATTRIB_ACCUM_RED_SIZE		11
-#define __DRI_ATTRIB_ACCUM_GREEN_SIZE		12
-#define __DRI_ATTRIB_ACCUM_BLUE_SIZE		13
-#define __DRI_ATTRIB_ACCUM_ALPHA_SIZE		14
-#define __DRI_ATTRIB_SAMPLE_BUFFERS		15
-#define __DRI_ATTRIB_SAMPLES			16
-#define __DRI_ATTRIB_RENDER_TYPE		17
-#define __DRI_ATTRIB_CONFIG_CAVEAT		18
-#define __DRI_ATTRIB_CONFORMANT			19
-#define __DRI_ATTRIB_DOUBLE_BUFFER		20
-#define __DRI_ATTRIB_STEREO			21
-#define __DRI_ATTRIB_AUX_BUFFERS		22
-#define __DRI_ATTRIB_TRANSPARENT_TYPE		23
-#define __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE	24
-#define __DRI_ATTRIB_TRANSPARENT_RED_VALUE	25
-#define __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE	26
-#define __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE	27
-#define __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE	28
-#define __DRI_ATTRIB_FLOAT_MODE			29
-#define __DRI_ATTRIB_RED_MASK			30
-#define __DRI_ATTRIB_GREEN_MASK			31
-#define __DRI_ATTRIB_BLUE_MASK			32
-#define __DRI_ATTRIB_ALPHA_MASK			33
-#define __DRI_ATTRIB_MAX_PBUFFER_WIDTH		34
-#define __DRI_ATTRIB_MAX_PBUFFER_HEIGHT		35
-#define __DRI_ATTRIB_MAX_PBUFFER_PIXELS		36
-#define __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH	37
-#define __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT	38
-#define __DRI_ATTRIB_VISUAL_SELECT_GROUP	39
-#define __DRI_ATTRIB_SWAP_METHOD		40
-#define __DRI_ATTRIB_MAX_SWAP_INTERVAL		41
-#define __DRI_ATTRIB_MIN_SWAP_INTERVAL		42
-#define __DRI_ATTRIB_BIND_TO_TEXTURE_RGB	43
-#define __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA	44
-#define __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE	45
-#define __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS	46
-#define __DRI_ATTRIB_YINVERTED			47
-
-/* __DRI_ATTRIB_RENDER_TYPE */
-#define __DRI_ATTRIB_RGBA_BIT			0x01	
-#define __DRI_ATTRIB_COLOR_INDEX_BIT		0x02
-#define __DRI_ATTRIB_LUMINANCE_BIT		0x04
-
-/* __DRI_ATTRIB_CONFIG_CAVEAT */
-#define __DRI_ATTRIB_SLOW_BIT			0x01
-#define __DRI_ATTRIB_NON_CONFORMANT_CONFIG	0x02
-
-/* __DRI_ATTRIB_TRANSPARENT_TYPE */
-#define __DRI_ATTRIB_TRANSPARENT_RGB		0x00
-#define __DRI_ATTRIB_TRANSPARENT_INDEX		0x01
-
-/* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS	 */
-#define __DRI_ATTRIB_TEXTURE_1D_BIT		0x01
-#define __DRI_ATTRIB_TEXTURE_2D_BIT		0x02
-#define __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT	0x04
-
-/**
- * This extension defines the core DRI functionality.
- */
-#define __DRI_CORE "DRI_Core"
-#define __DRI_CORE_VERSION 1
-
-struct __DRIcoreExtensionRec {
-    __DRIextension base;
-
-    __DRIscreen *(*createNewScreen)(int screen, int fd,
-				    unsigned int sarea_handle,
-				    const __DRIextension **extensions,
-				    const __DRIconfig ***driverConfigs,
-				    void *loaderPrivate);
-
-    void (*destroyScreen)(__DRIscreen *screen);
-
-    const __DRIextension **(*getExtensions)(__DRIscreen *screen);
-
-    int (*getConfigAttrib)(const __DRIconfig *config,
-			   unsigned int attrib,
-			   unsigned int *value);
-
-    int (*indexConfigAttrib)(const __DRIconfig *config, int index,
-			     unsigned int *attrib, unsigned int *value);
-
-    __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
-					const __DRIconfig *config,
-					unsigned int drawable_id,
-					unsigned int head,
-					void *loaderPrivate);
-
-    void (*destroyDrawable)(__DRIdrawable *drawable);
-
-    void (*swapBuffers)(__DRIdrawable *drawable);
-
-    __DRIcontext *(*createNewContext)(__DRIscreen *screen,
-				      const __DRIconfig *config,
-				      __DRIcontext *shared,
-				      void *loaderPrivate);
-
-    int (*copyContext)(__DRIcontext *dest,
-		       __DRIcontext *src,
-		       unsigned long mask);
-
-    void (*destroyContext)(__DRIcontext *context);
-
-    int (*bindContext)(__DRIcontext *ctx,
-		       __DRIdrawable *pdraw,
-		       __DRIdrawable *pread);
-
-    int (*unbindContext)(__DRIcontext *ctx);
-};
-
-/**
- * Stored version of some component (i.e., server-side DRI module, kernel-side
- * DRM, etc.).
- * 
- * \todo
- * There are several data structures that explicitly store a major version,
- * minor version, and patch level.  These structures should be modified to
- * have a \c __DRIversionRec instead.
- */
-struct __DRIversionRec {
-    int    major;        /**< Major version number. */
-    int    minor;        /**< Minor version number. */
-    int    patch;        /**< Patch-level. */
+			 int front_buffer);
 };
 
+   
 /**
  * Framebuffer information record.  Used by libGL to communicate information
  * about the framebuffer to the driver's \c __driCreateNewScreen function.
@@ -571,59 +289,229 @@ struct __DRIframebufferRec {
 
 
 /**
- * This extension provides alternative screen, drawable and context
- * constructors for legacy DRI functionality.  This is used in
- * conjunction with the core extension.
+ * Screen dependent methods.  This structure is initialized during the
+ * \c __DRIdisplayRec::createScreen call.
  */
-#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);
+struct __DRIscreenRec {
+    /**
+     * Method to destroy the private DRI screen data.
+     */
+    void (*destroyScreen)(__DRInativeDisplay *dpy, int scrn, void *screenPrivate);
+
+    /**
+     * Method to create the private DRI drawable data and initialize the
+     * drawable dependent methods.
+     */
+    void *(*createNewDrawable)(__DRInativeDisplay *dpy, const __GLcontextModes *modes,
+			       __DRIid draw, __DRIdrawable *pdraw,
+			       int renderType, const int *attrs);
+
+    /**
+     * Method to return a pointer to the DRI drawable data.
+     */
+    __DRIdrawable *(*getDrawable)(__DRInativeDisplay *dpy, __DRIid draw,
+				  void *drawablePrivate);
+
+    /**
+     * Opaque pointer to private per screen direct rendering data.  \c NULL
+     * if direct rendering is not supported on this screen.  Never
+     * dereferenced in libGL.
+     */
+    void *private;
+
+    /**
+     * Get the number of vertical refreshes since some point in time before
+     * this function was first called (i.e., system start up).
+     * 
+     * \since Internal API version 20030317.
+     */
+    int (*getMSC)( void *screenPrivate, int64_t *msc );
+
+    /**
+     * Opaque pointer that points back to the containing 
+     * \c __GLXscreenConfigs.  This data structure is shared with DRI drivers
+     * but \c __GLXscreenConfigs is not. However, they are needed by some GLX
+     * functions called by DRI drivers.
+     *
+     * \since Internal API version 20030813.
+     */
+    void *screenConfigs;
+
+    /**
+     * Functions associated with MESA_allocate_memory.
+     *
+     * \since Internal API version 20030815.
+     */
+    /*@{*/
+    void *(*allocateMemory)(__DRInativeDisplay *dpy, int scrn, GLsizei size,
+			    GLfloat readfreq, GLfloat writefreq,
+			    GLfloat priority);
+   
+    void (*freeMemory)(__DRInativeDisplay *dpy, int scrn, GLvoid *pointer);
+   
+    GLuint (*memoryOffset)(__DRInativeDisplay *dpy, int scrn, const GLvoid *pointer);
+    /*@}*/
+
+    /**
+     * Method to create the private DRI context data and initialize the
+     * context dependent methods.
+     *
+     * \since Internal API version 20031201.
+     */
+    void * (*createNewContext)(__DRInativeDisplay *dpy, const __GLcontextModes *modes,
+			       int render_type,
+			       void *sharedPrivate, __DRIcontext *pctx);
+
+    /**
+     * 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.
+     *
+     * \since Internal API version 20070121.
+     */
+    void (*setTexOffset)(__DRIcontext *pDRICtx, GLint texname,
+			 unsigned long long offset, GLint depth, GLuint pitch);
 };
 
 /**
- * This extension provides alternative screen, drawable and context
- * constructors for swrast DRI functionality.  This is used in
- * conjunction with the core extension.
+ * Context dependent methods.  This structure is initialized during the
+ * \c __DRIscreenRec::createContext call.
  */
-#define __DRI_SWRAST "DRI_SWRast"
-#define __DRI_SWRAST_VERSION 1
+struct __DRIcontextRec {
+    /**
+     * Method to destroy the private DRI context data.
+     */
+    void (*destroyContext)(__DRInativeDisplay *dpy, int scrn, void *contextPrivate);
 
-struct __DRIswrastExtensionRec {
-    __DRIextension base;
+    /**
+     * Opaque pointer to private per context direct rendering data.
+     * \c NULL if direct rendering is not supported on the display or
+     * screen used to create this context.  Never dereferenced in libGL.
+     */
+    void *private;
+
+    /**
+     * Pointer to the mode used to create this context.
+     *
+     * \since Internal API version 20040317.
+     */
+    const __GLcontextModes * mode;
+
+    /**
+     * Method to bind a DRI drawable to a DRI graphics context.
+     *
+     * \since Internal API version 20050727.
+     */
+    GLboolean (*bindContext)(__DRInativeDisplay *dpy, int scrn, __DRIid draw,
+			 __DRIid read, __DRIcontext *ctx);
+
+    /**
+     * Method to unbind a DRI drawable from a DRI graphics context.
+     *
+     * \since Internal API version 20050727.
+     */
+    GLboolean (*unbindContext)(__DRInativeDisplay *dpy, int scrn, __DRIid draw,
+			   __DRIid read, __DRIcontext *ctx);
+};
+
+/**
+ * Drawable dependent methods.  This structure is initialized during the
+ * \c __DRIscreenRec::createDrawable call.  \c createDrawable is not called
+ * by libGL at this time.  It's currently used via the dri_util.c utility code
+ * instead.
+ */
+struct __DRIdrawableRec {
+    /**
+     * Method to destroy the private DRI drawable data.
+     */
+    void (*destroyDrawable)(__DRInativeDisplay *dpy, void *drawablePrivate);
+
+    /**
+     * Method to swap the front and back buffers.
+     */
+    void (*swapBuffers)(__DRInativeDisplay *dpy, void *drawablePrivate);
+
+    /**
+     * Opaque pointer to private per drawable direct rendering data.
+     * \c NULL if direct rendering is not supported on the display or
+     * screen used to create this drawable.  Never dereferenced in libGL.
+     */
+    void *private;
+
+    /**
+     * Get the number of completed swap buffers for this drawable.
+     *
+     * \since Internal API version 20030317.
+     */
+    int (*getSBC)(__DRInativeDisplay *dpy, void *drawablePrivate, int64_t *sbc );
+
+    /**
+     * Wait for the SBC to be greater than or equal target_sbc.
+     *
+     * \since Internal API version 20030317.
+     */
+    int (*waitForSBC)( __DRInativeDisplay * dpy, void *drawablePriv,
+		       int64_t target_sbc,
+		       int64_t * msc, int64_t * sbc );
+
+    /**
+     * 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.
+     * 
+     * \since Internal API version 20030317.
+     */
+    int (*waitForMSC)( __DRInativeDisplay * dpy, void *drawablePriv,
+		       int64_t target_msc, int64_t divisor, int64_t remainder,
+		       int64_t * msc, int64_t * sbc );
 
-    __DRIscreen *(*createNewScreen)(int screen,
-				    const __DRIextension **extensions,
-				    const __DRIconfig ***driver_configs,
-				    void *loaderPrivate);
+    /**
+     * Like \c swapBuffers, but does NOT have an implicit \c glFlush.  Once
+     * rendering is complete, waits until MSC is equal to target_msc, or
+     * if that has already passed, waits until (MSC % divisor) is equal
+     * to remainder.  If divisor is zero, the swap will happen as soon as
+     * MSC is greater than or equal to target_msc.
+     * 
+     * \since Internal API version 20030317.
+     */
+    int64_t (*swapBuffersMSC)(__DRInativeDisplay *dpy, void *drawablePrivate,
+			      int64_t target_msc,
+			      int64_t divisor, int64_t remainder);
 
-    __DRIdrawable *(*createNewDrawable)(__DRIscreen *screen,
-					const __DRIconfig *config,
-					void *loaderPrivate);
+    /**
+     * Enable or disable frame usage tracking.
+     * 
+     * \since Internal API version 20030317.
+     */
+    int (*frameTracking)(__DRInativeDisplay *dpy, void *drawablePrivate, GLboolean enable);
+
+    /**
+     * Retrieve frame usage information.
+     * 
+     * \since Internal API version 20030317.
+     */
+    int (*queryFrameTracking)(__DRInativeDisplay *dpy, void *drawablePrivate,
+			      int64_t * sbc, int64_t * missedFrames,
+			      float * lastMissedUsage, float * usage );
+
+    /**
+     * Used by drivers that implement the GLX_SGI_swap_control or
+     * GLX_MESA_swap_control extension.
+     *
+     * \since Internal API version 20030317.
+     */
+    unsigned swap_interval;
+
+    /**
+     * Used by drivers that implement the GLX_MESA_copy_sub_buffer extension.
+     *
+     * \since Internal API version 20060314.
+     */
+    void (*copySubBuffer)(__DRInativeDisplay *dpy, void *drawablePrivate,
+			  int x, int y, int w, int h);
 };
 
 #endif