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-rw-r--r--src/mesa/main/dlist.c28
1 files changed, 21 insertions, 7 deletions
diff --git a/src/mesa/main/dlist.c b/src/mesa/main/dlist.c
index 9d0a2dca0d..2e36eee3de 100644
--- a/src/mesa/main/dlist.c
+++ b/src/mesa/main/dlist.c
@@ -681,7 +681,6 @@ translate_id(GLsizei n, GLenum type, const GLvoid * list)
/**
* Wrapper for _mesa_unpack_image() that handles pixel buffer objects.
* If we run out of memory, GL_OUT_OF_MEMORY will be recorded.
- * \todo This won't suffice when the PBO is really in VRAM/GPU memory.
*/
static GLvoid *
unpack_image(GLcontext *ctx, GLuint dimensions,
@@ -698,12 +697,27 @@ unpack_image(GLcontext *ctx, GLuint dimensions,
}
return image;
}
- else
- if (_mesa_validate_pbo_access
- (dimensions, unpack, width, height, depth, format, type, pixels)) {
- const GLubyte *src = ADD_POINTERS(unpack->BufferObj->Data, pixels);
- GLvoid *image = _mesa_unpack_image(dimensions, width, height, depth,
- format, type, src, unpack);
+ else if (_mesa_validate_pbo_access(dimensions, unpack, width, height, depth,
+ format, type, pixels)) {
+ const GLubyte *map, *src;
+ GLvoid *image;
+
+ map = (GLubyte *)
+ ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
+ GL_READ_ONLY_ARB, unpack->BufferObj);
+ if (!map) {
+ /* unable to map src buffer! */
+ _mesa_error(ctx, GL_INVALID_OPERATION, "unable to map PBO");
+ return NULL;
+ }
+
+ src = ADD_POINTERS(map, pixels);
+ image = _mesa_unpack_image(dimensions, width, height, depth,
+ format, type, src, unpack);
+
+ ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
+ unpack->BufferObj);
+
if (!image) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "display list construction");
}