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authorJosé Fonseca <jfonseca@vmware.com>2009-10-03 19:42:22 +0100
committerJosé Fonseca <jfonseca@vmware.com>2009-10-03 19:42:22 +0100
commitcbb57bf726619a34a244acaebf0dcd77750cba54 (patch)
treeb89959f63e6af26a56deefaa2b274c3279c2f904 /src/gallium/drivers
parent7d2699aedc084d9cb9c2bd2f8bdb5f038271ac1e (diff)
llvmpipe: Fetch tile only if a color buffer is bound.
Diffstat (limited to 'src/gallium/drivers')
-rw-r--r--src/gallium/drivers/llvmpipe/lp_setup.c10
-rw-r--r--src/gallium/drivers/llvmpipe/lp_tile_cache.c3
2 files changed, 11 insertions, 2 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_setup.c b/src/gallium/drivers/llvmpipe/lp_setup.c
index 2d2fc19a65..60107214df 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup.c
+++ b/src/gallium/drivers/llvmpipe/lp_setup.c
@@ -124,7 +124,7 @@ shade_quads(struct llvmpipe_context *llvmpipe,
struct quad_header *quad = quads[0];
const unsigned x = quad->input.x0;
const unsigned y = quad->input.y0;
- uint8_t *tile = lp_get_cached_tile(llvmpipe->cbuf_cache[0], x, y);
+ uint8_t *tile;
uint8_t *color;
void *depth;
uint32_t ALIGN16_ATTRIB mask[4][NUM_CHANNELS];
@@ -150,7 +150,13 @@ shade_quads(struct llvmpipe_context *llvmpipe,
mask[q][chan_index] = quads[q]->inout.mask & (1 << chan_index) ? ~0 : 0;
/* color buffer */
- color = &TILE_PIXEL(tile, x & (TILE_SIZE-1), y & (TILE_SIZE-1), 0);
+ if(llvmpipe->framebuffer.nr_cbufs >= 1 &&
+ llvmpipe->framebuffer.cbufs[0]) {
+ tile = lp_get_cached_tile(llvmpipe->cbuf_cache[0], x, y);
+ color = &TILE_PIXEL(tile, x & (TILE_SIZE-1), y & (TILE_SIZE-1), 0);
+ }
+ else
+ color = NULL;
/* depth buffer */
if(llvmpipe->zsbuf_map) {
diff --git a/src/gallium/drivers/llvmpipe/lp_tile_cache.c b/src/gallium/drivers/llvmpipe/lp_tile_cache.c
index 0c06b659a1..2ac8cb5c82 100644
--- a/src/gallium/drivers/llvmpipe/lp_tile_cache.c
+++ b/src/gallium/drivers/llvmpipe/lp_tile_cache.c
@@ -294,6 +294,9 @@ lp_get_cached_tile(struct llvmpipe_tile_cache *tc,
struct llvmpipe_cached_tile *tile = &tc->entries[y/TILE_SIZE][x/TILE_SIZE];
struct pipe_transfer *pt = tc->transfer;
+ assert(tc->surface);
+ assert(tc->transfer);
+
switch(tile->status) {
case LP_TILE_STATUS_CLEAR:
/* don't get tile from framebuffer, just clear it */