diff options
| author | Zack Rusin <[email protected]> | 2009-07-01 10:42:58 -0400 |
|---|---|---|
| committer | Zack Rusin <[email protected]> | 2009-07-01 10:45:55 -0400 |
| commit | 1c04731b8721850b6abb12a43a3eec616b850e86 (patch) | |
| tree | 1b172fcb4b651718b39a613c2267b76b457ccf8e /src/mesa/state_tracker/st_program.c | |
| parent | e8c4663c11cfbb80ed23b1581cf1f3ccaef28bce (diff) | |
gallium: fix the front face semantics
mesa allocates both frontface and pointcoord registers within the fog
coordinate register, by using swizzling. to make it cleaner and easier
for drivers we want each of them in its own register. so when doing
compilation from the mesa IR to tgsi allocate new registers for both
and add new semantics to the respective declarations.
Diffstat (limited to 'src/mesa/state_tracker/st_program.c')
| -rw-r--r-- | src/mesa/state_tracker/st_program.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_program.c b/src/mesa/state_tracker/st_program.c index 72ca8524582..9a346fbde0c 100644 --- a/src/mesa/state_tracker/st_program.c +++ b/src/mesa/state_tracker/st_program.c @@ -437,11 +437,16 @@ st_translate_fragment_program(struct st_context *st, if (stfp->Base.UsesPointCoord) { stfp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; stfp->input_semantic_index[slot] = num_generic++; + interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE; + } else if (stfp->Base.UsesFrontFacing) { + stfp->input_semantic_name[slot] = TGSI_SEMANTIC_FACE; + stfp->input_semantic_index[slot] = 0; + interpMode[slot] = TGSI_INTERPOLATE_CONSTANT; } else { stfp->input_semantic_name[slot] = TGSI_SEMANTIC_FOG; stfp->input_semantic_index[slot] = 0; + interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE; } - interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE; break; case FRAG_ATTRIB_TEX0: case FRAG_ATTRIB_TEX1: |