diff options
Diffstat (limited to 'src/mesa/pipe/softpipe')
| -rw-r--r-- | src/mesa/pipe/softpipe/sp_quad_fs.c | 1 | ||||
| -rw-r--r-- | src/mesa/pipe/softpipe/sp_tex_sample.c | 53 |
2 files changed, 46 insertions, 8 deletions
diff --git a/src/mesa/pipe/softpipe/sp_quad_fs.c b/src/mesa/pipe/softpipe/sp_quad_fs.c index e5ab0ebc166..b68d0f95ac9 100644 --- a/src/mesa/pipe/softpipe/sp_quad_fs.c +++ b/src/mesa/pipe/softpipe/sp_quad_fs.c @@ -325,6 +325,7 @@ static void shade_begin(struct quad_stage *qs) /* init cache info here */ qss->samplers[i].cache_x = qss->samplers[i].cache_y = -1; + qss->samplers[i].cache_level = -1; } if (qs->next) diff --git a/src/mesa/pipe/softpipe/sp_tex_sample.c b/src/mesa/pipe/softpipe/sp_tex_sample.c index 7f8bf0d99c6..062d61dea45 100644 --- a/src/mesa/pipe/softpipe/sp_tex_sample.c +++ b/src/mesa/pipe/softpipe/sp_tex_sample.c @@ -447,6 +447,22 @@ sp_get_sample_1d(struct tgsi_sampler *sampler, } } +static GLuint +choose_mipmap_level(struct tgsi_sampler *sampler, GLfloat lambda) +{ + if (sampler->state->min_filter == sampler->state->mag_filter) { + assert(sampler->state->min_filter == PIPE_TEX_FILTER_LINEAR || + sampler->state->min_filter == PIPE_TEX_FILTER_NEAREST); + return 0; + } + else { + GLint level = (int) lambda; + level = CLAMP(level, sampler->texture->first_level, + sampler->texture->last_level); + return level; + } +} + /** * Called via tgsi_sampler::get_sample() @@ -465,14 +481,22 @@ sp_get_sample_2d(struct tgsi_sampler *sampler, const GLfloat strq[4], GLfloat lambda, GLfloat rgba[4]) { struct pipe_context *pipe = (struct pipe_context *) sampler->pipe; - struct pipe_surface *ps - = pipe->get_tex_surface(pipe, sampler->texture, 0, 0, 0); + GLuint filter; + GLint level0; - switch (sampler->state->min_filter) { + if (lambda < 0.0) + filter = sampler->state->mag_filter; + else + filter = sampler->state->min_filter; + + level0 = choose_mipmap_level(sampler, lambda); + + switch (filter) { case PIPE_TEX_FILTER_NEAREST: + case PIPE_TEX_FILTER_NEAREST_MIPMAP_NEAREST: { - GLint x, y, cx, cy; - const GLfloat *src; + GLint x, y, cx, cy; + x = nearest_texcoord(sampler->state->wrap_s, strq[0], sampler->texture->width0); y = nearest_texcoord(sampler->state->wrap_t, strq[1], @@ -480,8 +504,12 @@ sp_get_sample_2d(struct tgsi_sampler *sampler, cx = x / SAMPLER_CACHE_SIZE; cy = y / SAMPLER_CACHE_SIZE; - if (cx != sampler->cache_x || cy != sampler->cache_y) { + if (cx != sampler->cache_x || cy != sampler->cache_y || + level0 != sampler->cache_level) { /* cache miss, replace cache with new tile */ + struct pipe_surface *ps + = pipe->get_tex_surface(pipe, sampler->texture, 0, level0, 0); + sampler->cache_level = level0; sampler->cache_x = cx; sampler->cache_y = cy; ps->get_tile(ps, @@ -497,8 +525,7 @@ sp_get_sample_2d(struct tgsi_sampler *sampler, cx = x % SAMPLER_CACHE_SIZE; cy = y % SAMPLER_CACHE_SIZE; - src = sampler->cache[cy][cx]; - COPY_4V(rgba, src); + COPY_4V(rgba, sampler->cache[cy][cx]); } break; case PIPE_TEX_FILTER_LINEAR: @@ -506,6 +533,9 @@ sp_get_sample_2d(struct tgsi_sampler *sampler, GLfloat t00[4], t01[4], t10[4], t11[4]; GLint x0, y0, x1, y1; GLfloat a, b; + struct pipe_surface *ps + = pipe->get_tex_surface(pipe, sampler->texture, 0, level0, 0); + linear_texcoord(sampler->state->wrap_s, strq[0], sampler->texture->width0, &x0, &x1, &a); linear_texcoord(sampler->state->wrap_t, strq[1], @@ -521,6 +551,13 @@ sp_get_sample_2d(struct tgsi_sampler *sampler, rgba[3] = lerp_2d(a, b, t00[3], t10[3], t01[3], t11[3]); } break; + /* + { + GLuint level0, level1; + level0 = choose_mipmap_level(sampler, lambda); + } + break; + */ default: assert(0); } |