diff options
Diffstat (limited to 'src/gallium/drivers')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_rast.c | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_rast.c b/src/gallium/drivers/llvmpipe/lp_rast.c index 6c7ece9fdbf..3849116758f 100644 --- a/src/gallium/drivers/llvmpipe/lp_rast.c +++ b/src/gallium/drivers/llvmpipe/lp_rast.c @@ -187,17 +187,33 @@ void lp_rast_clear_color( struct lp_rasterizer *rast, if (clear_color[0] == clear_color[1] && clear_color[1] == clear_color[2] && clear_color[2] == clear_color[3]) { + /* clear to grayscale value {x, x, x, x} */ for (i = 0; i < rast->state.fb.nr_cbufs; i++) { memset(color_tile[i], clear_color[0], TILE_SIZE * TILE_SIZE * 4); } } else { - unsigned x, y, chan; - for (i = 0; i < rast->state.fb.nr_cbufs; i++) - for (y = 0; y < TILE_SIZE; y++) - for (x = 0; x < TILE_SIZE; x++) - for (chan = 0; chan < 4; ++chan) - TILE_PIXEL(color_tile[i], x, y, chan) = clear_color[chan]; + /* Non-gray color. + * Note: if the swizzled tile layout changes (see TILE_PIXEL) this code + * will need to change. It'll be pretty obvious when clearing no longer + * works. + */ + const unsigned chunk = TILE_SIZE / 4; + for (i = 0; i < rast->state.fb.nr_cbufs; i++) { + uint8_t *c = color_tile[i]; + unsigned j; + for (j = 0; j < 4 * TILE_SIZE; j++) { + memset(c, clear_color[0], chunk); + c += chunk; + memset(c, clear_color[1], chunk); + c += chunk; + memset(c, clear_color[2], chunk); + c += chunk; + memset(c, clear_color[3], chunk); + c += chunk; + } + assert(c - color_tile[i] == TILE_SIZE * TILE_SIZE * 4); + } } } |