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gallium/radeon: strenghten some checking for DMA preparation 

Just for consistency. This doesn't fix anything, because DCC is not
supported with non-mipmapped textures.

v1.1: fix the comment about DCC

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Marek Olšák 2016-05-11 14:09:55 +02:00
parent 9d881cc0ac
commit ef765d0789
1 changed files with 6 additions and 1 deletions
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7
src/gallium/drivers/radeon/r600_texture.c
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@ -74,8 +74,11 @@ bool r600_prepare_for_dma_blit(struct r600_common_context *rctx,
return false;
if (rdst->dcc_offset) {
/* We can't discard DCC if the texture has been exported. */
/* We can't discard DCC if the texture has been exported.
* We can only discard DCC for the entire texture.
*/
if (rdst->resource.is_shared ||
rdst->resource.b.b.last_level > 0 ||
!util_texrange_covers_whole_level(&rdst->resource.b.b, dst_level,
dstx, dsty, dstz, src_box->width,
src_box->height, src_box->depth))
@ -90,6 +93,8 @@ bool r600_prepare_for_dma_blit(struct r600_common_context *rctx,
* SDMA. Otherwise, use the 3D path.
*/
if (rdst->cmask.size && rdst->dirty_level_mask & (1 << dst_level)) {
/* The CMASK clear is only enabled for the first level. */
assert(dst_level == 0);
if (!util_texrange_covers_whole_level(&rdst->resource.b.b, dst_level,
dstx, dsty, dstz, src_box->width,
src_box->height, src_box->depth))