diff options
Diffstat (limited to 'src/mesa/pipe/softpipe')
| -rw-r--r-- | src/mesa/pipe/softpipe/sp_tex_sample.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/src/mesa/pipe/softpipe/sp_tex_sample.c b/src/mesa/pipe/softpipe/sp_tex_sample.c index 1d274d5038..7f8bf0d99c 100644 --- a/src/mesa/pipe/softpipe/sp_tex_sample.c +++ b/src/mesa/pipe/softpipe/sp_tex_sample.c @@ -471,12 +471,34 @@ sp_get_sample_2d(struct tgsi_sampler *sampler, switch (sampler->state->min_filter) { case PIPE_TEX_FILTER_NEAREST: { - GLint x, y; + GLint x, y, cx, cy; + const GLfloat *src; x = nearest_texcoord(sampler->state->wrap_s, strq[0], sampler->texture->width0); y = nearest_texcoord(sampler->state->wrap_t, strq[1], sampler->texture->height0); - ps->get_tile(ps, x, y, 1, 1, rgba); + + cx = x / SAMPLER_CACHE_SIZE; + cy = y / SAMPLER_CACHE_SIZE; + if (cx != sampler->cache_x || cy != sampler->cache_y) { + /* cache miss, replace cache with new tile */ + sampler->cache_x = cx; + sampler->cache_y = cy; + ps->get_tile(ps, + cx * SAMPLER_CACHE_SIZE, + cy * SAMPLER_CACHE_SIZE, + SAMPLER_CACHE_SIZE, SAMPLER_CACHE_SIZE, + (GLfloat *) sampler->cache); + /*printf("cache miss (%d, %d)\n", x, y);*/ + } + else { + /*printf("cache hit (%d, %d)\n", x, y);*/ + } + + cx = x % SAMPLER_CACHE_SIZE; + cy = y % SAMPLER_CACHE_SIZE; + src = sampler->cache[cy][cx]; + COPY_4V(rgba, src); } break; case PIPE_TEX_FILTER_LINEAR: |