Another round of glRead/DrawBuffer() clean-ups and simplifications.

Replaced ctx->Color._DriverDrawBuffer with swrast->CurrentBuffer.
Replaced ctx->Pixel._DriverReadBuffer with ctx->Pixel._ReadSrcMask.
swrast->Driver.SetBuffer() takes FRONT/BACK_LEFT/RIGHT_BIT values now.
Added tokens and code for GL_AUX buffers, for completeness.

17 files changed, 291 insertions, 171 deletions

diff --git a/src/mesa/drivers/allegro/amesa.c b/src/mesa/drivers/allegro/amesa.c
index 41dfcb18f0..0728c34273 100644
--- a/src/mesa/drivers/allegro/amesa.c
+++ b/src/mesa/drivers/allegro/amesa.c
@@ -112,15 +112,15 @@ IMPLEMENT_READ_RGBA_PIXELS(32, unsigned long)
 /*****              Miscellaneous device driver funcs             *****/

 /**********************************************************************/

 

-static GLboolean set_buffer(GLcontext *ctx, GLenum mode)

+static GLboolean set_buffer(GLcontext *ctx, GLframebuffer *buffer, GLuint bit)

     {

     AMesaContext context = (AMesaContext)(ctx->DriverCtx);

     GLboolean    ok      = GL_TRUE;

 

-    if (mode == GL_FRONT_LEFT)

+    if (bit == FRONT_LEFT_BIT)

         context->Buffer->Active = context->Buffer->Screen;

 

-    else if (mode == GL_BACK_LEFT)

+    else if (bit == BACK_LEFT)

         {

         if (context->Buffer->Background)

             context->Buffer->Active = context->Buffer->Background;

diff --git a/src/mesa/drivers/d3d/NullProcs.c b/src/mesa/drivers/d3d/NullProcs.c
index 58be86c231..d6fb598074 100644
--- a/src/mesa/drivers/d3d/NullProcs.c
+++ b/src/mesa/drivers/d3d/NullProcs.c
@@ -28,7 +28,7 @@
 /*===========================================================================*/
 void NULLSetColor( GLcontext *ctx, GLubyte r, GLubyte g, GLubyte b, GLubyte a );
 void NULLClearColor( GLcontext *ctx, GLubyte r, GLubyte g, GLubyte b, GLubyte a );
-GLboolean NULLSetBuffer( GLcontext *ctx, GLenum mode );
+GLboolean NULLSetBuffer( GLcontext *ctx, GLframebuffer *buffer, GLuint bit );
 void NULLGetBufferSize( GLcontext *ctx, GLuint *width, GLuint *height );
 GLbitfield NULLClearBuffers( GLcontext *ctx, GLbitfield m, GLboolean a, GLint x, GLint y, GLint w, GLint h );
 void NULLWrSpRGB( const GLcontext* ctx, GLuint n, GLint x, GLint y, const GLubyte r[][3], const GLubyte m[] );
diff --git a/src/mesa/drivers/ggi/ggimesa.c b/src/mesa/drivers/ggi/ggimesa.c
index 94364f49e4..b3afe6ef6c 100644
--- a/src/mesa/drivers/ggi/ggimesa.c
+++ b/src/mesa/drivers/ggi/ggimesa.c
@@ -151,14 +151,14 @@ static void gl_ggiClear(GLcontext *ctx, GLbitfield mask, GLboolean all,
 
 /* Set the buffer used for reading */
 /* XXX support for separate read/draw buffers hasn't been tested */
-static GLboolean gl_ggiSetBuffer(GLcontext *ctx, GLframebuffer *buffer, GLenum mode)
+static GLboolean gl_ggiSetBuffer(GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit)
 {
 	ggi_mesa_context_t ggi_ctx = (ggi_mesa_context_t)ctx->DriverCtx;
 	
 	printf("set read %d\n", mode);
 	GGIMESADPRINT_CORE("gl_ggiSetBuffer() called\n");
 
-	if (mode == GL_FRONT_LEFT) 
+	if (bufferBit == FRONT_LEFT_BIT) 
 	{
 		ggiSetReadFrame(ggi_ctx->ggi_visual,
 				ggiGetDisplayFrame(ggi_ctx->ggi_visual));
@@ -166,7 +166,7 @@ static GLboolean gl_ggiSetBuffer(GLcontext *ctx, GLframebuffer *buffer, GLenum m
 				 ggiGetDisplayFrame(ggi_ctx->ggi_visual));
 		return GL_TRUE;
 	}
-	else if (mode == GL_BACK_LEFT) 
+	else if (bufferBit == BACK_LEFT_BIT)
 	{
 		ggiSetReadFrame(ggi_ctx->ggi_visual,
 				ggiGetDisplayFrame(ggi_ctx->ggi_visual)?0 : 1);
diff --git a/src/mesa/drivers/glide/fxddspan.c b/src/mesa/drivers/glide/fxddspan.c
index 98aabc5c0d..f9108cfd19 100644
--- a/src/mesa/drivers/glide/fxddspan.c
+++ b/src/mesa/drivers/glide/fxddspan.c
@@ -1,4 +1,4 @@
-/* $Id: fxddspan.c,v 1.20 2002/07/09 01:22:51 brianp Exp $ */
+/* $Id: fxddspan.c,v 1.21 2002/10/11 17:41:05 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -536,7 +536,7 @@ fxDDReadDepthPixels(GLcontext * ctx, GLuint n,
 /* Set the buffer used for reading */
 /* XXX support for separate read/draw buffers hasn't been tested */
 static void
-fxDDSetBuffer(GLcontext * ctx, GLframebuffer * buffer, GLenum mode)
+fxDDSetBuffer(GLcontext * ctx, GLframebuffer * buffer, GLuint bufferBit)
 {
    fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
    (void) buffer;
@@ -545,11 +545,11 @@ fxDDSetBuffer(GLcontext * ctx, GLframebuffer * buffer, GLenum mode)
       fprintf(stderr, "fxmesa: fxDDSetBuffer(%x)\n", (int) mode);
    }
 
-   if (mode == GL_FRONT_LEFT) {
+   if (bufferBit == FRONT_LEFT_BIT) {
       fxMesa->currentFB = GR_BUFFER_FRONTBUFFER;
       FX_grRenderBuffer(fxMesa->currentFB);
    }
-   else if (mode == GL_BACK_LEFT) {
+   else if (bufferBit == BACK_LEFT_BIT) {
       fxMesa->currentFB = GR_BUFFER_BACKBUFFER;
       FX_grRenderBuffer(fxMesa->currentFB);
    }
diff --git a/src/mesa/drivers/osmesa/osmesa.c b/src/mesa/drivers/osmesa/osmesa.c
index e6f9ebc3d8..5c1f7691c9 100644
--- a/src/mesa/drivers/osmesa/osmesa.c
+++ b/src/mesa/drivers/osmesa/osmesa.c
@@ -1,4 +1,4 @@
-/* $Id: osmesa.c,v 1.89 2002/10/05 03:02:01 brianp Exp $ */
+/* $Id: osmesa.c,v 1.90 2002/10/11 17:41:05 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -721,11 +721,11 @@ do {									\
 
 
 
-static void set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLenum mode )
+static void set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit )
 {
    /* separate read buffer not supported */
    ASSERT(buffer == ctx->DrawBuffer);
-   ASSERT(mode == GL_FRONT_LEFT);
+   ASSERT(bufferBit == FRONT_LEFT_BIT);
 }
 
 
diff --git a/src/mesa/drivers/windows/wmesa.c b/src/mesa/drivers/windows/wmesa.c
index 8d59cff203..bd91040221 100644
--- a/src/mesa/drivers/windows/wmesa.c
+++ b/src/mesa/drivers/windows/wmesa.c
@@ -1,4 +1,4 @@
-/* $Id: wmesa.c,v 1.38 2002/10/04 19:10:11 brianp Exp $ */
+/* $Id: wmesa.c,v 1.39 2002/10/11 17:41:05 brianp Exp $ */
 
 /*
  * Windows (Win32) device driver for Mesa 3.4
@@ -582,9 +582,9 @@ static void enable( GLcontext* ctx, GLenum pname, GLboolean enable )
 
 
 static void set_buffer(GLcontext *ctx, GLframebuffer *colorBuffer,
-                       GLenum buffer )
+                       GLuint bufferBit )
 {
-  /* XXX todo - examine buffer and set read/write pointers */
+  /* XXX todo - examine bufferBit and set read/write pointers */
   return;
 }
 
diff --git a/src/mesa/drivers/x11/xm_dd.c b/src/mesa/drivers/x11/xm_dd.c
index 9be4aba69b..81a4b006a4 100644
--- a/src/mesa/drivers/x11/xm_dd.c
+++ b/src/mesa/drivers/x11/xm_dd.c
@@ -1,4 +1,4 @@
-/* $Id: xm_dd.c,v 1.37 2002/10/04 19:10:12 brianp Exp $ */
+/* $Id: xm_dd.c,v 1.38 2002/10/11 17:41:06 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -123,7 +123,7 @@ flush( GLcontext *ctx )
  * lines, and triangles.
  */
 static void
-set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLenum mode )
+set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit )
 {
    /* We can make this cast since the XMesaBuffer wraps GLframebuffer.
     * GLframebuffer is the first member in a XMesaBuffer struct.
@@ -139,10 +139,10 @@ set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLenum mode )
    /*
     * Now determine front vs back color buffer.
     */
-   if (mode == GL_FRONT_LEFT) {
+   if (bufferBit == FRONT_LEFT_BIT) {
       target->buffer = target->frontbuffer;
    }
-   else if (mode == GL_BACK_LEFT) {
+   else if (bufferBit == BACK_LEFT_BIT) {
       ASSERT(target->db_state);
       if (target->backpixmap) {
          /* back buffer is a pixmape */
@@ -158,7 +158,8 @@ set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLenum mode )
       }
    }
    else {
-      _mesa_problem(ctx, "invalid buffer in set_buffer() in xmesa2.c");
+      _mesa_problem(ctx, "invalid buffer in set_buffer() in xm_dd.c");
+      printf("bufferBit = 0x%x\n", bufferBit);
       return;
    }
    xmesa_update_span_funcs(ctx);
diff --git a/src/mesa/glapi/glapi.c b/src/mesa/glapi/glapi.c
index b0d26fdcdd..acfd6181f2 100644
--- a/src/mesa/glapi/glapi.c
+++ b/src/mesa/glapi/glapi.c
@@ -1,4 +1,4 @@
-/* $Id: glapi.c,v 1.64 2002/10/02 01:51:44 brianp Exp $ */
+/* $Id: glapi.c,v 1.65 2002/10/11 17:41:04 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -653,6 +653,10 @@ fill_in_entrypoint_offset(void *entrypoint, GLuint offset)
 GLboolean
 _glapi_add_entrypoint(const char *funcName, GLuint offset)
 {
+   /* trivial rejection test */
+   if (!funcName || funcName[0] != 'g' || funcName[1] != 'l')
+      return GL_FALSE;
+
    /* first check if the named function is already statically present */
    {
       GLint index = get_static_proc_offset(funcName);
@@ -661,13 +665,6 @@ _glapi_add_entrypoint(const char *funcName, GLuint offset)
       }
    }
 
-   /* make sure this offset/name pair is legal (this isn't really needed) */
-   {
-      const char *name = _glapi_get_proc_name(offset);
-      if (name && strcmp(name, funcName) != 0)
-         return GL_FALSE;  /* bad name! */
-   }
-
    /* See if this function has already been dynamically added */
    {
       GLuint i;
@@ -691,29 +688,29 @@ _glapi_add_entrypoint(const char *funcName, GLuint offset)
             }
          }
       }
+   }
 
-      /* This is a new function, try to add it.  */
-      if (NumExtEntryPoints >= MAX_EXTENSION_FUNCS ||
-          offset >= DISPATCH_TABLE_SIZE) {
-         /* No space left */
-         return GL_FALSE;
-      }
-      else {
-         void *entrypoint = generate_entrypoint(offset);
-         if (!entrypoint)
-            return GL_FALSE; /* couldn't generate assembly */
+   /* This is a new function, try to add it.  */
+   if (NumExtEntryPoints >= MAX_EXTENSION_FUNCS ||
+       offset >= DISPATCH_TABLE_SIZE) {
+      /* No space left */
+      return GL_FALSE;
+   }
+   else {
+      void *entrypoint = generate_entrypoint(offset);
+      if (!entrypoint)
+         return GL_FALSE; /* couldn't generate assembly */
 
-         /* OK! */
-         ExtEntryTable[NumExtEntryPoints].Name = str_dup(funcName);
-         ExtEntryTable[NumExtEntryPoints].Offset = offset;
-         ExtEntryTable[NumExtEntryPoints].Address = entrypoint;
-         NumExtEntryPoints++;
+      /* OK! */
+      ExtEntryTable[NumExtEntryPoints].Name = str_dup(funcName);
+      ExtEntryTable[NumExtEntryPoints].Offset = offset;
+      ExtEntryTable[NumExtEntryPoints].Address = entrypoint;
+      NumExtEntryPoints++;
 
-         return GL_TRUE;  /* success */
-      }
+      return GL_TRUE;  /* success */
    }
 
-   /* should never get here, but play it safe */
+   /* should never get here, silence compiler warnings */
    return GL_FALSE;
 }
 
diff --git a/src/mesa/main/buffers.c b/src/mesa/main/buffers.c
index 2bf691dd08..efb3553168 100644
--- a/src/mesa/main/buffers.c
+++ b/src/mesa/main/buffers.c
@@ -1,4 +1,4 @@
-/* $Id: buffers.c,v 1.40 2002/10/11 15:17:12 brianp Exp $ */
+/* $Id: buffers.c,v 1.41 2002/10/11 17:41:03 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -151,13 +151,6 @@ _mesa_DrawBuffer( GLenum mode )
     * Do error checking and compute the _DrawDestMask bitfield.
     */
    switch (mode) {
-      case GL_AUX0:
-      case GL_AUX1:
-      case GL_AUX2:
-      case GL_AUX3:
-         /* AUX buffers not implemented in Mesa at this time */
-         _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
-         return;
       case GL_RIGHT:
          if (!ctx->Visual.stereoMode) {
             _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
@@ -175,11 +168,7 @@ _mesa_DrawBuffer( GLenum mode )
          ctx->Color._DrawDestMask = FRONT_RIGHT_BIT;
          break;
       case GL_BACK_RIGHT:
-         if (!ctx->Visual.stereoMode) {
-            _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
-            return;
-         }
-         if (!ctx->Visual.doubleBufferMode) {
+         if (!ctx->Visual.stereoMode || !ctx->Visual.doubleBufferMode) {
             _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" );
             return;
          }
@@ -235,6 +224,42 @@ _mesa_DrawBuffer( GLenum mode )
          /* never an error */
          ctx->Color._DrawDestMask = 0;
          break;
+      case GL_AUX0:
+         if (ctx->Const.NumAuxBuffers >= 1) {
+            ctx->Color._DrawDestMask = AUX0_BIT;
+         }
+         else {
+            _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer(GL_AUX0)" );
+            return;
+         }
+         break;
+      case GL_AUX1:
+         if (ctx->Const.NumAuxBuffers >= 2) {
+            ctx->Color._DrawDestMask = AUX1_BIT;
+         }
+         else {
+            _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer(GL_AUX1)" );
+            return;
+         }
+         break;
+      case GL_AUX2:
+         if (ctx->Const.NumAuxBuffers >= 3) {
+            ctx->Color._DrawDestMask = AUX2_BIT;
+         }
+         else {
+            _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer(GL_AUX2)" );
+            return;
+         }
+         break;
+      case GL_AUX3:
+         if (ctx->Const.NumAuxBuffers >= 4) {
+            ctx->Color._DrawDestMask = AUX3_BIT;
+         }
+         else {
+            _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer(GL_AUX3)" );
+            return;
+         }
+         break;
       default:
          _mesa_error( ctx, GL_INVALID_ENUM, "glDrawBuffer" );
          return;
@@ -261,22 +286,15 @@ _mesa_ReadBuffer( GLenum mode )
    if (MESA_VERBOSE & VERBOSE_API)
       _mesa_debug(ctx, "glReadBuffer %s\n", _mesa_lookup_enum_by_nr(mode));
 
-   if (ctx->Pixel.ReadBuffer == mode)
-      return; /* no change */
-
+   /*
+    * Do error checking and compute ctx->Pixel._ReadSrcMask.
+    */
    switch (mode) {
-      case GL_AUX0:
-      case GL_AUX1:
-      case GL_AUX2:
-      case GL_AUX3:
-         /* AUX buffers not implemented in Mesa at this time */
-         _mesa_error( ctx, GL_INVALID_OPERATION, "glReadBuffer" );
-         return;
       case GL_LEFT:
       case GL_FRONT:
       case GL_FRONT_LEFT:
          /* Front-Left buffer, always exists */
-         ctx->Pixel._DriverReadBuffer = GL_FRONT_LEFT;
+         ctx->Pixel._ReadSrcMask = FRONT_LEFT_BIT;
          break;
       case GL_BACK:
       case GL_BACK_LEFT:
@@ -285,7 +303,7 @@ _mesa_ReadBuffer( GLenum mode )
             _mesa_error( ctx, GL_INVALID_OPERATION, "glReadBuffer" );
             return;
          }
-         ctx->Pixel._DriverReadBuffer = GL_BACK_LEFT;
+         ctx->Pixel._ReadSrcMask = BACK_LEFT_BIT;
          break;
       case GL_FRONT_RIGHT:
       case GL_RIGHT:
@@ -293,14 +311,50 @@ _mesa_ReadBuffer( GLenum mode )
             _mesa_error( ctx, GL_INVALID_OPERATION, "glReadBuffer" );
             return;
          }
-         ctx->Pixel._DriverReadBuffer = GL_FRONT_RIGHT;
+         ctx->Pixel._ReadSrcMask = FRONT_RIGHT_BIT;
          break;
       case GL_BACK_RIGHT:
          if (!ctx->Visual.stereoMode || !ctx->Visual.doubleBufferMode) {
             _mesa_error( ctx, GL_INVALID_OPERATION, "glReadBuffer" );
             return;
          }
-         ctx->Pixel._DriverReadBuffer = GL_BACK_RIGHT;
+         ctx->Pixel._ReadSrcMask = BACK_RIGHT_BIT;
+         break;
+      case GL_AUX0:
+         if (ctx->Const.NumAuxBuffers >= 1) {
+            ctx->Pixel._ReadSrcMask = AUX0_BIT;
+         }
+         else {
+            _mesa_error( ctx, GL_INVALID_OPERATION, "glReadBuffer(GL_AUX0)" );
+            return;
+         }
+         break;
+      case GL_AUX1:
+         if (ctx->Const.NumAuxBuffers >= 2) {
+            ctx->Pixel._ReadSrcMask = AUX1_BIT;
+         }
+         else {
+            _mesa_error( ctx, GL_INVALID_OPERATION, "glReadBuffer(GL_AUX1)" );
+            return;
+         }
+         break;
+      case GL_AUX2:
+         if (ctx->Const.NumAuxBuffers >= 3) {
+            ctx->Pixel._ReadSrcMask = AUX2_BIT;
+         }
+         else {
+            _mesa_error( ctx, GL_INVALID_OPERATION, "glReadBuffer(GL_AUX2)" );
+            return;
+         }
+         break;
+      case GL_AUX3:
+         if (ctx->Const.NumAuxBuffers >= 4) {
+            ctx->Pixel._ReadSrcMask = AUX3_BIT;
+         }
+         else {
+            _mesa_error( ctx, GL_INVALID_OPERATION, "glReadBuffer(GL_AUX3)" );
+            return;
+         }
          break;
       default:
          _mesa_error( ctx, GL_INVALID_ENUM, "glReadBuffer" );
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index cac01e4d8e..e9c82c91be 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -1,4 +1,4 @@
-/* $Id: context.c,v 1.182 2002/10/10 00:22:13 brianp Exp $ */
+/* $Id: context.c,v 1.183 2002/10/11 17:41:03 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -1714,17 +1714,15 @@ _mesa_initialize_context( GLcontext *ctx,
 
    if (visual->doubleBufferMode) {
       ctx->Color.DrawBuffer = GL_BACK;
-      ctx->Color._DriverDrawBuffer = GL_BACK_LEFT;
       ctx->Color._DrawDestMask = BACK_LEFT_BIT;
       ctx->Pixel.ReadBuffer = GL_BACK;
-      ctx->Pixel._DriverReadBuffer = GL_BACK_LEFT;
+      ctx->Pixel._ReadSrcMask = BACK_LEFT_BIT;
    }
    else {
       ctx->Color.DrawBuffer = GL_FRONT;
-      ctx->Color._DriverDrawBuffer = GL_FRONT_LEFT;
       ctx->Color._DrawDestMask = FRONT_LEFT_BIT;
       ctx->Pixel.ReadBuffer = GL_FRONT;
-      ctx->Pixel._DriverReadBuffer = GL_FRONT_LEFT;
+      ctx->Pixel._ReadSrcMask = FRONT_LEFT_BIT;
    }
 
    if (!alloc_proxy_textures(ctx)) {
@@ -1732,17 +1730,106 @@ _mesa_initialize_context( GLcontext *ctx,
       return GL_FALSE;
    }
 
-   /* register the most recent extension functions with libGL */
-   _glapi_add_entrypoint("glTbufferMask3DFX", 553);
-   _glapi_add_entrypoint("glCompressedTexImage3DARB", 554);
-   _glapi_add_entrypoint("glCompressedTexImage2DARB", 555);
-   _glapi_add_entrypoint("glCompressedTexImage1DARB", 556);
-   _glapi_add_entrypoint("glCompressedTexSubImage3DARB", 557);
-   _glapi_add_entrypoint("glCompressedTexSubImage2DARB", 558);
-   _glapi_add_entrypoint("glCompressedTexSubImage1DARB", 559);
-   _glapi_add_entrypoint("glGetCompressedTexImageARB", 560);
-   /* XXX we should add a bunch of new functions here */
-
+   /*
+    * For XFree86/DRI: tell libGL to add these functions to the dispatcher.
+    * Basically, we should add all extension functions above offset 577.
+    * This enables older libGL libraries to work with newer drivers that
+    * have newer extensions.
+    */
+   /* GL_ARB_window_pos aliases with GL_MESA_window_pos */
+   _glapi_add_entrypoint("glWindowPos2dARB", 513);
+   _glapi_add_entrypoint("glWindowPos2dvARB", 514);
+   _glapi_add_entrypoint("glWindowPos2fARB", 515);
+   _glapi_add_entrypoint("glWindowPos2fvARB", 516);
+   _glapi_add_entrypoint("glWindowPos2iARB", 517);
+   _glapi_add_entrypoint("glWindowPos2ivARB", 518);
+   _glapi_add_entrypoint("glWindowPos2sARB", 519);
+   _glapi_add_entrypoint("glWindowPos2svARB", 520);
+   _glapi_add_entrypoint("glWindowPos3dARB", 521);
+   _glapi_add_entrypoint("glWindowPos3dvARB", 522);
+   _glapi_add_entrypoint("glWindowPos3fARB", 523);
+   _glapi_add_entrypoint("glWindowPos3fvARB", 524);
+   _glapi_add_entrypoint("glWindowPos3iARB", 525);
+   _glapi_add_entrypoint("glWindowPos3ivARB", 526);
+   _glapi_add_entrypoint("glWindowPos3sARB", 527);
+   _glapi_add_entrypoint("glWindowPos3svARB", 528);
+   /* new extension functions */
+   _glapi_add_entrypoint("glAreProgramsResidentNV", 578);
+   _glapi_add_entrypoint("glBindProgramNV", 579);
+   _glapi_add_entrypoint("glDeleteProgramsNV", 580);
+   _glapi_add_entrypoint("glExecuteProgramNV", 581);
+   _glapi_add_entrypoint("glGenProgramsNV", 582);
+   _glapi_add_entrypoint("glGetProgramParameterdvNV", 583);
+   _glapi_add_entrypoint("glGetProgramParameterfvNV", 584);
+   _glapi_add_entrypoint("glGetProgramivNV", 585);
+   _glapi_add_entrypoint("glGetProgramStringNV", 586);
+   _glapi_add_entrypoint("glGetTrackMatrixivNV", 587);
+   _glapi_add_entrypoint("glGetVertexAttribdvNV", 588);
+   _glapi_add_entrypoint("glGetVertexAttribfvNV", 589);
+   _glapi_add_entrypoint("glGetVertexAttribivNV", 590);
+   _glapi_add_entrypoint("glGetVertexAttribPointervNV", 591);
+   _glapi_add_entrypoint("glIsProgramNV", 592);
+   _glapi_add_entrypoint("glLoadProgramNV", 593);
+   _glapi_add_entrypoint("glProgramParameter4dNV", 594);
+   _glapi_add_entrypoint("glProgramParameter4dvNV", 595);
+   _glapi_add_entrypoint("glProgramParameter4fNV", 596);
+   _glapi_add_entrypoint("glProgramParameter4fvNV", 597);
+   _glapi_add_entrypoint("glProgramParameters4dvNV", 598);
+   _glapi_add_entrypoint("glProgramParameters4fvNV", 599);
+   _glapi_add_entrypoint("glRequestResidentProgramsNV", 600);
+   _glapi_add_entrypoint("glTrackMatrixNV", 601);
+   _glapi_add_entrypoint("glVertexAttribPointerNV", 602);
+   _glapi_add_entrypoint("glVertexAttrib1dNV", 603);
+   _glapi_add_entrypoint("glVertexAttrib1dvNV", 604);
+   _glapi_add_entrypoint("glVertexAttrib1fNV", 605);
+   _glapi_add_entrypoint("glVertexAttrib1fvNV", 606);
+   _glapi_add_entrypoint("glVertexAttrib1sNV", 607);
+   _glapi_add_entrypoint("glVertexAttrib1svNV", 608);
+   _glapi_add_entrypoint("glVertexAttrib2dNV", 609);
+   _glapi_add_entrypoint("glVertexAttrib2dvNV", 610);
+   _glapi_add_entrypoint("glVertexAttrib2fNV", 611);
+   _glapi_add_entrypoint("glVertexAttrib2fvNV", 612);
+   _glapi_add_entrypoint("glVertexAttrib2sNV", 613);
+   _glapi_add_entrypoint("glVertexAttrib2svNV", 614);
+   _glapi_add_entrypoint("glVertexAttrib3dNV", 615);
+   _glapi_add_entrypoint("glVertexAttrib3dvNV", 616);
+   _glapi_add_entrypoint("glVertexAttrib3fNV", 617);
+   _glapi_add_entrypoint("glVertexAttrib3fvNV", 618);
+   _glapi_add_entrypoint("glVertexAttrib3sNV", 619);
+   _glapi_add_entrypoint("glVertexAttrib3svNV", 620);
+   _glapi_add_entrypoint("glVertexAttrib4dNV", 621);
+   _glapi_add_entrypoint("glVertexAttrib4dvNV", 622);
+   _glapi_add_entrypoint("glVertexAttrib4fNV", 623);
+   _glapi_add_entrypoint("glVertexAttrib4fvNV", 624);
+   _glapi_add_entrypoint("glVertexAttrib4sNV", 625);
+   _glapi_add_entrypoint("glVertexAttrib4svNV", 626);
+   _glapi_add_entrypoint("glVertexAttrib4ubNV", 627);
+   _glapi_add_entrypoint("glVertexAttrib4ubvNV", 628);
+   _glapi_add_entrypoint("glVertexAttribs1dvNV", 629);
+   _glapi_add_entrypoint("glVertexAttribs1fvNV", 630);
+   _glapi_add_entrypoint("glVertexAttribs1svNV", 631);
+   _glapi_add_entrypoint("glVertexAttribs2dvNV", 632);
+   _glapi_add_entrypoint("glVertexAttribs2fvNV", 633);
+   _glapi_add_entrypoint("glVertexAttribs2svNV", 634);
+   _glapi_add_entrypoint("glVertexAttribs3dvNV", 635);
+   _glapi_add_entrypoint("glVertexAttribs3fvNV", 636);
+   _glapi_add_entrypoint("glVertexAttribs3svNV", 637);
+   _glapi_add_entrypoint("glVertexAttribs4dvNV", 638);
+   _glapi_add_entrypoint("glVertexAttribs4fvNV", 639);
+   _glapi_add_entrypoint("glVertexAttribs4svNV", 640);
+   _glapi_add_entrypoint("glVertexAttribs4ubvNV", 641);
+   _glapi_add_entrypoint("glPointParameteriNV", 642);
+   _glapi_add_entrypoint("glPointParameterivNV", 643);
+   _glapi_add_entrypoint("glMultiDrawArraysEXT", 644);
+   _glapi_add_entrypoint("glMultiDrawElementsEXT", 645);
+   _glapi_add_entrypoint("glActiveStencilFaceEXT", 646);
+   _glapi_add_entrypoint("glDeleteFencesNV", 647);
+   _glapi_add_entrypoint("glGenFencesNV", 648);
+   _glapi_add_entrypoint("glIsFenceNV", 649);
+   _glapi_add_entrypoint("glTestFenceNV", 650);
+   _glapi_add_entrypoint("glGetFenceivNV", 651);
+   _glapi_add_entrypoint("glFinishFenceNV", 652);
+   _glapi_add_entrypoint("glSetFenceNV", 653);
 
    /* Find the larger of Mesa's dispatch table and libGL's dispatch table.
     * In practice, this'll be the same for stand-alone Mesa.  But for DRI
diff --git a/src/mesa/main/dd.h b/src/mesa/main/dd.h
index fc02a15620..d6f0da1c69 100644
--- a/src/mesa/main/dd.h
+++ b/src/mesa/main/dd.h
@@ -1,4 +1,4 @@
-/* $Id: dd.h,v 1.73 2002/10/04 19:10:07 brianp Exp $ */
+/* $Id: dd.h,v 1.74 2002/10/11 17:41:04 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -38,9 +38,13 @@ struct gl_pixelstore_attrib;
 #define DD_FRONT_RIGHT_BIT FRONT_RIGHT_BIT        /* 2 */
 #define DD_BACK_LEFT_BIT   BACK_LEFT_BIT          /* 4 */
 #define DD_BACK_RIGHT_BIT  BACK_RIGHT_BIT         /* 8 */
+#define DD_AUX0            AUX0_BIT               /* future use */
+#define DD_AUX1            AUX1_BIT               /* future use */
+#define DD_AUX2            AUX2_BIT               /* future use */
+#define DD_AUX3            AUX3_BIT               /* future use */
 #define DD_DEPTH_BIT       GL_DEPTH_BUFFER_BIT    /* 0x00000100 */
-#define DD_STENCIL_BIT     GL_STENCIL_BUFFER_BIT  /* 0x00000400 */
 #define DD_ACCUM_BIT       GL_ACCUM_BUFFER_BIT    /* 0x00000200 */
+#define DD_STENCIL_BIT     GL_STENCIL_BUFFER_BIT  /* 0x00000400 */
 
 
 /*
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 7d43de19fb..10f8e2bf57 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1,4 +1,4 @@
-/* $Id: mtypes.h,v 1.95 2002/10/09 23:56:32 brianp Exp $ */
+/* $Id: mtypes.h,v 1.96 2002/10/11 17:41:04 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -301,13 +301,16 @@ struct gl_accum_attrib {
 
 
 /*
- * Used in DrawDestMask below
+ * Used in _DrawDestMask and _ReadSrcMask below to identify color buffers.
  */
-#define FRONT_LEFT_BIT  1
-#define FRONT_RIGHT_BIT 2
-#define BACK_LEFT_BIT   4
-#define BACK_RIGHT_BIT  8
-
+#define FRONT_LEFT_BIT  0x1
+#define FRONT_RIGHT_BIT 0x2
+#define BACK_LEFT_BIT   0x4
+#define BACK_RIGHT_BIT  0x8
+#define AUX0_BIT        0x10
+#define AUX1_BIT        0x20
+#define AUX2_BIT        0x40
+#define AUX3_BIT        0x80
 
 struct gl_colorbuffer_attrib {
    GLuint ClearIndex;			/* Index to use for glClear */
@@ -316,9 +319,8 @@ struct gl_colorbuffer_attrib {
    GLuint IndexMask;			/* Color index write mask */
    GLubyte ColorMask[4];		/* Each flag is 0xff or 0x0 */
 
-   GLenum DrawBuffer;			/* Which buffer to draw into */
-   GLenum _DriverDrawBuffer;		/* Single src/dst buffer for drivers */
-   GLubyte _DrawDestMask;		/* bitwise-OR of bitflags above */
+   GLenum DrawBuffer;		/* Which buffer to draw into */
+   GLubyte _DrawDestMask;	/* bitwise-OR of FRONT/BACK_LEFT/RIGHT_BITs */
 
    /* alpha testing */
    GLboolean AlphaEnabled;		/* Alpha test enabled flag */
@@ -598,7 +600,9 @@ struct gl_multisample_attrib {
 
 struct gl_pixel_attrib {
    GLenum ReadBuffer;		/* src buffer for glRead/CopyPixels */
-   GLenum _DriverReadBuffer;	/* Driver's current source buffer */
+   GLubyte _ReadSrcMask;	/* Not really a mask, but like _DrawDestMask */
+				/* May be: FRONT_LEFT_BIT, BACK_LEFT_BIT, */
+				/* FRONT_RIGHT_BIT or BACK_RIGHT_BIT. */
    GLfloat RedBias, RedScale;
    GLfloat GreenBias, GreenScale;
    GLfloat BlueBias, BlueScale;
diff --git a/src/mesa/swrast/s_alphabuf.c b/src/mesa/swrast/s_alphabuf.c
index 2eab878a23..4bf3368cb2 100644
--- a/src/mesa/swrast/s_alphabuf.c
+++ b/src/mesa/swrast/s_alphabuf.c
@@ -1,4 +1,4 @@
-/* $Id: s_alphabuf.c,v 1.12 2002/10/04 19:10:12 brianp Exp $ */
+/* $Id: s_alphabuf.c,v 1.13 2002/10/11 17:41:06 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -35,6 +35,7 @@
 #include "context.h"
 #include "mem.h"
 
+#include "s_context.h"
 #include "s_alphabuf.h"
 
 
@@ -171,22 +172,24 @@ _mesa_clear_alpha_buffers( GLcontext *ctx )
 static INLINE
 GLchan *get_alpha_buffer( GLcontext *ctx )
 {
-   switch (ctx->Color._DriverDrawBuffer) {
-   case GL_FRONT_LEFT:
+   SWcontext *swrast = SWRAST_CONTEXT(ctx);
+
+   switch (swrast->CurrentBuffer) {
+   case FRONT_LEFT_BIT:
       return (GLchan *) ctx->DrawBuffer->FrontLeftAlpha;
       break;
-   case GL_BACK_LEFT:
+   case BACK_LEFT_BIT:
       return (GLchan *) ctx->DrawBuffer->BackLeftAlpha;
       break;
-   case GL_FRONT_RIGHT:
+   case FRONT_RIGHT_BIT:
       return (GLchan *) ctx->DrawBuffer->FrontRightAlpha;
       break;
-   case GL_BACK_RIGHT:
+   case BACK_RIGHT_BIT:
       return (GLchan *) ctx->DrawBuffer->BackRightAlpha;
       break;
    default:
-      _mesa_problem(ctx, "Bad DriverDrawBuffer in _mesa_write_alpha_span()");
-      return (GLchan *) ctx->DrawBuffer->FrontLeftAlpha; /* aribitrary */
+      _mesa_problem(ctx, "Bad CurrentBuffer in get_alpha_buffer()");
+      return (GLchan *) ctx->DrawBuffer->FrontLeftAlpha;
    }
 }
 
diff --git a/src/mesa/swrast/s_buffers.c b/src/mesa/swrast/s_buffers.c
index 1b07eb0bef..102d53ac7f 100644
--- a/src/mesa/swrast/s_buffers.c
+++ b/src/mesa/swrast/s_buffers.c
@@ -1,4 +1,4 @@
-/* $Id: s_buffers.c,v 1.13 2002/10/04 19:10:12 brianp Exp $ */
+/* $Id: s_buffers.c,v 1.14 2002/10/11 17:41:06 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -166,18 +166,7 @@ clear_color_buffers(GLcontext *ctx)
    /* loop over four possible dest color buffers */
    for (bufferBit = 1; bufferBit <= 8; bufferBit = bufferBit << 1) {
       if (bufferBit & ctx->Color._DrawDestMask) {
-         if (bufferBit == FRONT_LEFT_BIT) {
-            (*swrast->Driver.SetBuffer)(ctx, ctx->DrawBuffer, GL_FRONT_LEFT);
-         }
-         else if (bufferBit == FRONT_RIGHT_BIT) {
-            (*swrast->Driver.SetBuffer)(ctx, ctx->DrawBuffer, GL_FRONT_RIGHT);
-         }
-         else if (bufferBit == BACK_LEFT_BIT) {
-            (*swrast->Driver.SetBuffer)(ctx, ctx->DrawBuffer, GL_BACK_LEFT);
-         }
-         else {
-            (*swrast->Driver.SetBuffer)(ctx, ctx->DrawBuffer, GL_BACK_RIGHT);
-         }
+         (*swrast->Driver.SetBuffer)(ctx, ctx->DrawBuffer, bufferBit);
 
          if (colorMask != 0xffffffff) {
             clear_color_buffer_with_masking(ctx);
@@ -274,10 +263,9 @@ _swrast_use_read_buffer( GLcontext *ctx )
    SWcontext *swrast = SWRAST_CONTEXT(ctx);
 
    /* Do this so the software-emulated alpha plane span functions work! */
-   ctx->Color._DriverDrawBuffer = ctx->Pixel._DriverReadBuffer;
+   swrast->CurrentBuffer = ctx->Pixel._ReadSrcMask;
    /* Tell the device driver where to read/write spans */
-   (*swrast->Driver.SetBuffer)( ctx, ctx->ReadBuffer,
-                                ctx->Pixel._DriverReadBuffer );
+   (*swrast->Driver.SetBuffer)( ctx, ctx->ReadBuffer, swrast->CurrentBuffer );
 }
 
 
@@ -302,17 +290,16 @@ _swrast_use_draw_buffer( GLcontext *ctx )
     */
 
    if (ctx->Color._DrawDestMask & FRONT_LEFT_BIT)
-      ctx->Color._DriverDrawBuffer = GL_FRONT_LEFT;
+      swrast->CurrentBuffer = FRONT_LEFT_BIT;
    else if (ctx->Color._DrawDestMask & BACK_LEFT_BIT)
-      ctx->Color._DriverDrawBuffer = GL_BACK_LEFT;
+      swrast->CurrentBuffer = BACK_LEFT_BIT;
    else if (ctx->Color._DrawDestMask & FRONT_RIGHT_BIT)
-      ctx->Color._DriverDrawBuffer = GL_FRONT_RIGHT;
+      swrast->CurrentBuffer = FRONT_RIGHT_BIT;
    else if (ctx->Color._DrawDestMask & BACK_RIGHT_BIT)
-      ctx->Color._DriverDrawBuffer = GL_BACK_RIGHT;
+      swrast->CurrentBuffer = BACK_RIGHT_BIT;
    else
       /* glDrawBuffer(GL_NONE) */
-      ctx->Color._DriverDrawBuffer = GL_FRONT_LEFT; /* always have this */
+      swrast->CurrentBuffer = FRONT_LEFT_BIT; /* we always have this buffer */
 
-   (*swrast->Driver.SetBuffer)( ctx, ctx->DrawBuffer,
-                                ctx->Color._DriverDrawBuffer );
+   (*swrast->Driver.SetBuffer)( ctx, ctx->DrawBuffer, swrast->CurrentBuffer );
 }
diff --git a/src/mesa/swrast/s_context.h b/src/mesa/swrast/s_context.h
index ecf173adbc..8493ad4264 100644
--- a/src/mesa/swrast/s_context.h
+++ b/src/mesa/swrast/s_context.h
@@ -1,4 +1,4 @@
-/* $Id: s_context.h,v 1.20 2002/10/04 17:37:47 brianp Exp $ */
+/* $Id: s_context.h,v 1.21 2002/10/11 17:41:06 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -138,6 +138,7 @@ typedef struct
    GLuint NewState;
    GLuint StateChanges;
    GLenum Primitive;    /* current primitive being drawn (ala glBegin) */
+   GLuint CurrentBuffer; /* exactly one of FRONT_LEFT_BIT, BACK_LEFT_BIT, etc*/
 
    /** Mechanism to allow driver (like X11) to register further
     * software rasterization routines.
diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c
index b134890a3b..2628a7af3e 100644
--- a/src/mesa/swrast/s_span.c
+++ b/src/mesa/swrast/s_span.c
@@ -1,4 +1,4 @@
-/* $Id: s_span.c,v 1.48 2002/10/02 23:24:04 brianp Exp $ */
+/* $Id: s_span.c,v 1.49 2002/10/11 17:41:06 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -618,14 +618,9 @@ multi_write_index_span( GLcontext *ctx, struct sw_span *span )
          GLuint indexTmp[MAX_WIDTH];
          ASSERT(span->end < MAX_WIDTH);
 
-         if (bufferBit == FRONT_LEFT_BIT)
-            (*swrast->Driver.SetBuffer)(ctx, ctx->DrawBuffer, GL_FRONT_LEFT);
-         else if (bufferBit == FRONT_RIGHT_BIT)
-            (*swrast->Driver.SetBuffer)(ctx, ctx->DrawBuffer, GL_FRONT_RIGHT);
-         else if (bufferBit == BACK_LEFT_BIT)
-            (*swrast->Driver.SetBuffer)(ctx, ctx->DrawBuffer, GL_BACK_LEFT);
-         else
-            (*swrast->Driver.SetBuffer)(ctx, ctx->DrawBuffer, GL_BACK_RIGHT);
+         /* Set the current read/draw buffer */
+         swrast->CurrentBuffer = bufferBit;
+         (*swrast->Driver.SetBuffer)(ctx, ctx->DrawBuffer, bufferBit);
 
          /* make copy of incoming indexes */
          MEMCPY( indexTmp, span->array->index, span->end * sizeof(GLuint) );
@@ -680,22 +675,9 @@ multi_write_rgba_span( GLcontext *ctx, struct sw_span *span )
          GLchan rgbaTmp[MAX_WIDTH][4];
          ASSERT(span->end < MAX_WIDTH);
 
-         if (bufferBit == FRONT_LEFT_BIT) {
-            ctx->Color._DriverDrawBuffer = GL_FRONT_LEFT;
-            (*swrast->Driver.SetBuffer)(ctx, ctx->DrawBuffer, GL_FRONT_LEFT);
-         }
-         else if (bufferBit == FRONT_RIGHT_BIT) {
-            ctx->Color._DriverDrawBuffer = GL_FRONT_RIGHT;
-            (*swrast->Driver.SetBuffer)(ctx, ctx->DrawBuffer, GL_FRONT_RIGHT);
-         }
-         else if (bufferBit == BACK_LEFT_BIT) {
-            ctx->Color._DriverDrawBuffer = GL_BACK_LEFT;
-            (*swrast->Driver.SetBuffer)(ctx, ctx->DrawBuffer, GL_BACK_LEFT);
-         }
-         else {
-            ctx->Color._DriverDrawBuffer = GL_BACK_RIGHT;
-            (*swrast->Driver.SetBuffer)(ctx, ctx->DrawBuffer, GL_BACK_RIGHT);
-         }
+         /* Set the current read/draw buffer */
+         swrast->CurrentBuffer = bufferBit;
+         (*swrast->Driver.SetBuffer)(ctx, ctx->DrawBuffer, bufferBit);
 
          /* make copy of incoming colors */
          MEMCPY( rgbaTmp, span->array->rgba, 4 * span->end * sizeof(GLchan) );
diff --git a/src/mesa/swrast/swrast.h b/src/mesa/swrast/swrast.h
index 1cb55a9d8c..43c9aea8dc 100644
--- a/src/mesa/swrast/swrast.h
+++ b/src/mesa/swrast/swrast.h
@@ -1,4 +1,4 @@
-/* $Id: swrast.h,v 1.29 2002/10/04 17:37:47 brianp Exp $ */
+/* $Id: swrast.h,v 1.30 2002/10/11 17:41:06 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -390,23 +390,23 @@ _swrast_copy_texsubimage3d(GLcontext *ctx,
 
 
 
-/* The driver interface for the software rasterizer.  Unless otherwise
- * noted, all functions are mandatory.  
+/* The driver interface for the software rasterizer.
+ * Unless otherwise noted, all functions are mandatory.  
  */
 struct swrast_device_driver {
 
-   void (*SetBuffer)( GLcontext *ctx, GLframebuffer *buffer,
-                      GLenum colorBuffer );
+   void (*SetBuffer)( GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit);
    /*
     * Specifies the current buffer for span/pixel writing/reading.
     * buffer indicates which window to write to / read from.  Normally,
     * this'll be the buffer currently bound to the context, but it doesn't
     * have to be!
-    * colorBuffer indicates which color buffer, one of:
-    *    GL_FRONT_LEFT - this buffer always exists
-    *    GL_BACK_LEFT - when double buffering
-    *    GL_FRONT_RIGHT - when using stereo
-    *    GL_BACK_RIGHT - when using stereo and double buffering
+    * bufferBit indicates which color buffer, one of:
+    *    FRONT_LEFT_BIT - this buffer always exists
+    *    BACK_LEFT_BIT - when double buffering
+    *    FRONT_RIGHT_BIT - when using stereo
+    *    BACK_RIGHT_BIT - when using stereo and double buffering
+    *    AUXn_BIT - if aux buffers are implemented
     */