Move GLX_MESA_allocate_memory related functions to new extension mechanism.

include/GL/internal/dri_interface.h

@@ -57,9 +57,10 @@ typedef struct __DRIframebufferRec	__DRIframebuffer;
 typedef struct __DRIversionRec		__DRIversion;
 typedef struct __DRIinterfaceMethodsRec	__DRIinterfaceMethods;
 
-typedef struct __DRIextensionRec	__DRIextension;
+typedef struct __DRIextensionRec		__DRIextension;
 typedef struct __DRIcopySubBufferExtensionRec	__DRIcopySubBufferExtension;
 typedef struct __DRIswapControlExtensionRec	__DRIswapControlExtension;
+typedef struct __DRIallocateExtensionRec	__DRIallocateExtension;
 /*@}*/
 
 
@@ -95,6 +96,22 @@ struct __DRIswapControlExtensionRec {
     unsigned int (*getSwapInterval)(__DRIdrawable *drawable);
 };
 
+/**
+ * Used by drivers that implement the GLX_MESA_allocate_memory.
+ */
+#define __DRI_ALLOCATE "DRI_Allocate"
+struct __DRIallocateExtensionRec {
+    __DRIextension base;
+
+    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);
+};
+
 /**
  * \name Functions provided by the driver loader.
  */
@@ -340,21 +357,6 @@ struct __DRIscreenRec {
      */
     int (*getMSC)(__DRIscreen *screen, int64_t *msc);
 
-    /**
-     * Functions associated with MESA_allocate_memory.
-     *
-     * \since Internal API version 20030815.
-     */
-    /*@{*/
-    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);
-    /*@}*/
-
     /**
      * Method to create the private DRI context data and initialize the
      * context dependent methods.