st/mesa: use the correct address generation functions in st_TexSubImage blit
authorNicolai Hähnle <nicolai.haehnle@amd.com>
Sat, 16 Jan 2016 20:15:13 +0000 (15:15 -0500)
committerNicolai Hähnle <nicolai.haehnle@amd.com>
Wed, 3 Feb 2016 13:10:35 +0000 (14:10 +0100)
We need to tell the address generation functions about the dimensionality of
the texture to correctly implement the part of Section 3.8.1 (Texture Image
Specification) of the OpenGL 2.1 specification which says:

    "For the purposes of decoding the texture image, TexImage2D is
    equivalent to calling TexImage3D with corresponding arguments
    and depth of 1, except that
      ...
      * UNPACK SKIP IMAGES is ignored."

Fixes a low impact bug that was found by chance while browsing the spec and
extending piglit tests.

Cc: "11.0 11.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
src/mesa/state_tracker/st_cb_texture.c

index 0ceb37027e101b7c317bdcb8d01cbea5e37d3868..0e3a030fd6f1ceda8114ac6657125ecd34963138 100644 (file)
@@ -849,18 +849,18 @@ st_TexSubImage(struct gl_context *ctx, GLuint dims,
             /* 1D array textures.
              * We need to convert gallium coords to GL coords.
              */
-            GLvoid *src = _mesa_image_address3d(unpack, pixels,
+            GLvoid *src = _mesa_image_address2d(unpack, pixels,
                                                 width, depth, format,
-                                                type, 0, slice, 0);
+                                                type, slice, 0);
             memcpy(map, src, bytesPerRow);
          }
          else {
             ubyte *slice_map = map;
 
             for (row = 0; row < (unsigned) height; row++) {
-               GLvoid *src = _mesa_image_address3d(unpack, pixels,
-                                                   width, height, format,
-                                                   type, slice, row, 0);
+               GLvoid *src = _mesa_image_address(dims, unpack, pixels,
+                                                 width, height, format,
+                                                 type, slice, row, 0);
                memcpy(slice_map, src, bytesPerRow);
                slice_map += transfer->stride;
             }