diff options
| author | Chad Versace <[email protected]> | 2012-09-20 18:54:29 +0200 |
|---|---|---|
| committer | Chad Versace <[email protected]> | 2012-09-26 09:47:46 -0700 |
| commit | bb7ecb29fb6358a4c65278c2fe88936c578074cd (patch) | |
| tree | f31479e22f8881d5284884d498a073428dc2c3a6 /src/mesa/drivers/dri/intel | |
| parent | 0aa47b2d8b83bbed9d774d58558058a35faa8795 (diff) | |
intel: Fix size of temporary etc1 buffer
Fixes valgrind errors in piglit test
oes_compressed_etc1_rgb8_texture-miptree: an invalid write in
_mesa_store_compressed_store_texsubimage() at line 4406 and invalid reads
in texcompress_etc_tmp.h:etc1_parse_block().
The calculation of the size of the temporary etc1 buffer allocated by
intel_miptree_map_etc1() was incorrect. Sometimes the allocated buffer was
too small, sometimes too large. This patch corrects the size to that
expected by _mesa_store_compressed_store_texsubimage().
Note: This is candidate for the 9.0 branch.
Reviewed-by: Eric Anholt <[email protected]>
Signed-off-by: Chad Versace <[email protected]>
Diffstat (limited to 'src/mesa/drivers/dri/intel')
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_mipmap_tree.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c index 556a82fc7ff..cd7299e2a30 100644 --- a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c +++ b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c @@ -1292,9 +1292,10 @@ intel_miptree_map_etc1(struct intel_context *intel, assert(map->x == 0); assert(map->y == 0); - /* Each ETC1 block contains 4x4 pixels in 8 bytes. */ - map->stride = 2 * map->w; - map->buffer = map->ptr = malloc(map->stride * map->h); + map->stride = _mesa_format_row_stride(MESA_FORMAT_ETC1_RGB8, map->w); + map->buffer = malloc(_mesa_format_image_size(MESA_FORMAT_ETC1_RGB8, + map->w, map->h, 1)); + map->ptr = map->buffer; } static void |