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r600g: don't read back the MSAA depth buffer if the read flag is not set 

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Marek Olšák 2013-06-30 14:55:06 +02:00
parent 141b892620
commit 94d294137e
1 changed files with 8 additions and 8 deletions
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16
src/gallium/drivers/r600/r600_texture.c
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@ -865,24 +865,24 @@ static void *r600_texture_transfer_map(struct pipe_context *ctx,
*
* Only the region being mapped is transfered.
*/
struct pipe_resource *temp;
struct pipe_resource resource;
r600_init_temp_resource_from_box(&resource, texture, box, level, 0);
temp = ctx->screen->resource_create(ctx->screen, &resource);
r600_copy_region_with_blit(ctx, temp, 0, 0, 0, 0, texture, level, box);
if (!r600_init_flushed_depth_texture(ctx, temp, &staging_depth)) {
if (!r600_init_flushed_depth_texture(ctx, &resource, &staging_depth)) {
R600_ERR("failed to create temporary texture to hold untiled copy\n");
FREE(trans);
return NULL;
}
r600_blit_decompress_depth(ctx, (struct r600_texture*)temp, staging_depth,
0, 0, 0, box->depth, 0, 0);
if (usage & PIPE_TRANSFER_READ) {
struct pipe_resource *temp = ctx->screen->resource_create(ctx->screen, &resource);
pipe_resource_reference((struct pipe_resource**)&temp, NULL);
r600_copy_region_with_blit(ctx, temp, 0, 0, 0, 0, texture, level, box);
r600_blit_decompress_depth(ctx, (struct r600_texture*)temp, staging_depth,
0, 0, 0, box->depth, 0, 0);
pipe_resource_reference((struct pipe_resource**)&temp, NULL);
}
}
else {
/* XXX: only readback the rectangle which is being mapped? */