remove dead code left over after fixing GL_READ/DRAW_BUFFER state issues

src/mesa/main/buffers.c

@@ -548,53 +548,6 @@ _mesa_drawbuffers(GLcontext *ctx, GLuint n, const GLenum *buffers,
 }
 
 
-#if 0
-GLboolean
-_mesa_readbuffer_update_fields(GLcontext *ctx, GLenum buffer)
-{
-   struct gl_framebuffer *fb;
-   GLbitfield supportedMask;
-   GLint srcBuffer;
-
-   fb = ctx->ReadBuffer;
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glReadBuffer %s\n", _mesa_lookup_enum_by_nr(buffer));
-
-   if (fb->Name > 0 && buffer == GL_NONE) {
-      /* This is legal for user-created framebuffer objects */
-      srcBuffer = -1;
-   }
-   else {
-      /* general case / window-system framebuffer */
-      srcBuffer = read_buffer_enum_to_index(buffer);
-      if (srcBuffer == -1) {
-         _mesa_error(ctx, GL_INVALID_ENUM, "glReadBuffer(buffer=0x%x)", buffer);
-         return GL_FALSE;
-      }
-      supportedMask = supported_buffer_bitmask(ctx, fb);
-      if (((1 << srcBuffer) & supportedMask) == 0) {
-         _mesa_error(ctx, GL_INVALID_OPERATION, "glReadBuffer(buffer=0x%x)", buffer);
-         return GL_FALSE;
-      }
-   }
-
-   if (fb->Name == 0) {
-      /* Only update the per-context GL_READ_BUFFER state if we're bound to
-       * a window-system framebuffer.
-       */
-      ctx->Pixel.ReadBuffer = buffer;
-   }
-
-   /* Set the FBO's GL_READ_BUFFER state */
-   fb->ColorReadBuffer = buffer;
-   fb->_ColorReadBufferIndex = srcBuffer;
-
-   return GL_TRUE;
-}
-#endif
-
-
 /**
  * Like \sa _mesa_drawbuffers(), this is a helper function for setting
  * GL_READ_BUFFER state in the context and current FBO.

src/mesa/main/buffers.h

@@ -59,11 +59,6 @@ _mesa_drawbuffers(GLcontext *ctx, GLuint n, const GLenum *buffers,
 extern void
 _mesa_readbuffer(GLcontext *ctx, GLenum buffer, GLint bufferIndex);
 
-#if 0
-extern GLboolean
-_mesa_readbuffer_update_fields(GLcontext *ctx, GLenum buffer);
-#endif
-
 extern void GLAPIENTRY
 _mesa_ReadBuffer( GLenum mode );
 

src/mesa/main/context.c

@@ -1530,23 +1530,9 @@ _mesa_make_current( GLcontext *newCtx, GLframebuffer *drawBuffer,
           */
          if (!newCtx->DrawBuffer || newCtx->DrawBuffer->Name == 0) {
             _mesa_reference_framebuffer(&newCtx->DrawBuffer, drawBuffer);
-#if 000
-         /* fix up the fb fields - these will end up wrong otherwise
-            if the DRIdrawable changes, and everything relies on them.
-            This is a bit messy (same as needed in _mesa_BindFramebufferEXT) */
-            int i;
-            GLenum buffers[MAX_DRAW_BUFFERS];
-            for(i = 0; i < newCtx->Const.MaxDrawBuffers; i++) {
-               buffers[i] = newCtx->Color.DrawBuffer[i];
-            }
-            _mesa_drawbuffers(newCtx, newCtx->Const.MaxDrawBuffers, buffers, NULL);
-#endif
          }
          if (!newCtx->ReadBuffer || newCtx->ReadBuffer->Name == 0) {
             _mesa_reference_framebuffer(&newCtx->ReadBuffer, readBuffer);
-#if 00
-            _mesa_readbuffer_update_fields(newCtx, newCtx->Pixel.ReadBuffer);
-#endif
          }
 
          /* XXX only set this flag if we're really changing the draw/read

src/mesa/main/fbobject.c

@@ -1000,20 +1000,8 @@ _mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
     * XXX check if re-binding same buffer and skip some of this code.
     */
 
-#if 000
-   /* for window-framebuffers, re-initialize the fbo values, as they
-      could be wrong (makecurrent with a new drawable while still a fbo
-      was bound will lead to default init fbo values).
-      note that therefore the context ReadBuffer/DrawBuffer values are not
-      valid while fbo's are bound!!! */
-#endif
    if (bindReadBuf) {
       _mesa_reference_framebuffer(&ctx->ReadBuffer, newFbread);
-#if 000
-      if (!newFbread->Name) {
-         _mesa_readbuffer_update_fields(ctx, ctx->Pixel.ReadBuffer);
-      }
-#endif
    }
 
    if (bindDrawBuf) {
@@ -1027,17 +1015,6 @@ _mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
          /* check if newly bound framebuffer has any texture attachments */
          check_begin_texture_render(ctx, newFb);
       }
-      else {
-         /* XXX try to remove this: */
-#if 000
-         GLuint i;
-         GLenum buffers[MAX_DRAW_BUFFERS];
-         for(i = 0; i < ctx->Const.MaxDrawBuffers; i++) {
-            buffers[i] = ctx->Color.DrawBuffer[i];
-         }
-         _mesa_drawbuffers(ctx, ctx->Const.MaxDrawBuffers, buffers, NULL);
-#endif
-      }
    }
 
    if (ctx->Driver.BindFramebuffer) {