diff options
| author | Marek Olšák <[email protected]> | 2012-01-23 03:11:17 +0100 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2012-01-25 12:35:18 +0100 |
| commit | bc1c8369384b5e16547c5bf9728aa78f8dfd66cc (patch) | |
| tree | a09267d88b2c604491a607467e28a7f8fbae4146 /src/mesa/state_tracker/st_program.c | |
| parent | c2e2b58a58880c9b9f189fc154205e99144e9502 (diff) | |
st/mesa: do vertex and fragment color clamping in shaders
For ARB_color_buffer_float. Most hardware can't do it and st/mesa is
the perfect place for a fallback.
The exceptions are:
- r500 (vertex clamp only)
- nv50 (both)
- nvc0 (both)
- softpipe (both)
We also have to take into account that r300 can do CLAMPED vertex colors only,
while r600 can do UNCLAMPED vertex colors only. The difference can be expressed
with the two new CAPs.
Diffstat (limited to 'src/mesa/state_tracker/st_program.c')
| -rw-r--r-- | src/mesa/state_tracker/st_program.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/src/mesa/state_tracker/st_program.c b/src/mesa/state_tracker/st_program.c index 8d08b2b0f31..3ae79ddbf4b 100644 --- a/src/mesa/state_tracker/st_program.c +++ b/src/mesa/state_tracker/st_program.c @@ -351,7 +351,8 @@ st_translate_vertex_program(struct st_context *st, stvp->result_to_output, stvp->output_semantic_name, stvp->output_semantic_index, - key->passthrough_edgeflags ); + key->passthrough_edgeflags, + key->clamp_color); else error = st_translate_mesa_program(st->ctx, TGSI_PROCESSOR_VERTEX, @@ -368,7 +369,8 @@ st_translate_vertex_program(struct st_context *st, stvp->result_to_output, stvp->output_semantic_name, stvp->output_semantic_index, - key->passthrough_edgeflags ); + key->passthrough_edgeflags, + key->clamp_color); if (error) goto fail; @@ -505,7 +507,8 @@ st_translate_fragment_program(struct st_context *st, } #endif - if (!stfp->tgsi.tokens) { + /* XXX this will be cleaned up in the following commit */ + if (1) { /* need to translate Mesa instructions to TGSI now */ GLuint outputMapping[FRAG_RESULT_MAX]; GLuint inputMapping[FRAG_ATTRIB_MAX]; @@ -718,7 +721,8 @@ st_translate_fragment_program(struct st_context *st, fs_num_outputs, outputMapping, fs_output_semantic_name, - fs_output_semantic_index, FALSE ); + fs_output_semantic_index, FALSE, + key->clamp_color ); else st_translate_mesa_program(st->ctx, TGSI_PROCESSOR_FRAGMENT, @@ -734,7 +738,8 @@ st_translate_fragment_program(struct st_context *st, fs_num_outputs, outputMapping, fs_output_semantic_name, - fs_output_semantic_index, FALSE ); + fs_output_semantic_index, FALSE, + key->clamp_color); stfp->tgsi.tokens = ureg_get_tokens( ureg, NULL ); ureg_destroy( ureg ); @@ -1022,6 +1027,7 @@ st_translate_geometry_program(struct st_context *st, outputMapping, gs_output_semantic_name, gs_output_semantic_index, + FALSE, FALSE); stgp->num_inputs = gs_num_inputs; |