diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_state_derived.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_state_derived.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_state_derived.c b/src/gallium/drivers/r300/r300_state_derived.c index e3adace0fa..193a60c034 100644 --- a/src/gallium/drivers/r300/r300_state_derived.c +++ b/src/gallium/drivers/r300/r300_state_derived.c @@ -34,6 +34,7 @@ #include "r300_state.h" #include "r300_state_derived.h" #include "r300_state_inlines.h" +#include "r300_texture.h" #include "r300_vs.h" /* r300_state_derived: Various bits of state which are dependent upon @@ -493,6 +494,12 @@ static void r300_merge_textures_and_samplers(struct r300_context* r300) unsigned min_level, max_level, i, size; unsigned count = MIN2(state->sampler_view_count, state->sampler_state_count); + unsigned char depth_swizzle[4] = { + UTIL_FORMAT_SWIZZLE_X, + UTIL_FORMAT_SWIZZLE_X, + UTIL_FORMAT_SWIZZLE_X, + UTIL_FORMAT_SWIZZLE_X + }; state->tx_enable = 0; state->count = 0; @@ -512,6 +519,20 @@ static void r300_merge_textures_and_samplers(struct r300_context* r300) texstate->filter1 = sampler->filter1; texstate->border_color = sampler->border_color; + /* If compare mode is disabled, the sampler view swizzles + * are stored in the format. + * Otherwise, swizzles must be applied after the compare mode + * in the fragment shader. */ + if (util_format_is_depth_or_stencil(tex->b.b.format)) { + if (sampler->state.compare_mode == PIPE_TEX_COMPARE_NONE) { + texstate->format.format1 |= + r300_get_swizzle_combined(depth_swizzle, view->swizzle); + } else { + texstate->format.format1 |= + r300_get_swizzle_combined(depth_swizzle, 0); + } + } + /* to emulate 1D textures through 2D ones correctly */ if (tex->b.b.target == PIPE_TEXTURE_1D) { texstate->filter0 &= ~R300_TX_WRAP_T_MASK; |