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author | Zack Rusin <zack@tungstengraphics.com> | 2007-10-31 06:51:19 -0400 |
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committer | Zack Rusin <zack@tungstengraphics.com> | 2007-11-02 07:15:17 -0400 |
commit | 7ff0df6c2bf11a36bc6101e361484bde57595a79 (patch) | |
tree | 62c3b8911fa5d35e5e9d524db3e8775e9799b1f6 /src/mesa/pipe/softpipe/sp_quad_fs.c | |
parent | d8e66aca8443c6802ecd8f1a353024ed1d0f32c3 (diff) |
Renaming llvmtgsi to gallivm. Taking first steps on the way to supporting
fragment shaders through llvm.
Diffstat (limited to 'src/mesa/pipe/softpipe/sp_quad_fs.c')
-rw-r--r-- | src/mesa/pipe/softpipe/sp_quad_fs.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/src/mesa/pipe/softpipe/sp_quad_fs.c b/src/mesa/pipe/softpipe/sp_quad_fs.c index d6d7eb6489..4bc604d682 100644 --- a/src/mesa/pipe/softpipe/sp_quad_fs.c +++ b/src/mesa/pipe/softpipe/sp_quad_fs.c @@ -156,6 +156,76 @@ shade_quad( } } +#if 0 +static void +shade_quad_llvm(struct quad_stage *qs, + struct quad_header *quad) +{ + struct quad_shade_stage *qss = quad_shade_stage(qs); + struct softpipe_context *softpipe = qs->softpipe; + const float fx = (float) quad->x0; + const float fy = (float) quad->y0; + + /* Consts does not require 16 byte alignment. */ + machine->Consts = softpipe->mapped_constants[PIPE_SHADER_FRAGMENT]; + + machine->SamplerUnits = softpipe->sampler_units; + machine->InterpCoefs = quad->coef; + + machine->Inputs[0].xyzw[0].f[0] = fx; + machine->Inputs[0].xyzw[0].f[1] = fx + 1.0f; + machine->Inputs[0].xyzw[0].f[2] = fx; + machine->Inputs[0].xyzw[0].f[3] = fx + 1.0f; + + machine->Inputs[0].xyzw[1].f[0] = fy; + machine->Inputs[0].xyzw[1].f[1] = fy; + machine->Inputs[0].xyzw[1].f[2] = fy + 1.0f; + machine->Inputs[0].xyzw[1].f[3] = fy + 1.0f; + + /* run shader */ +#if defined(__i386__) || defined(__386__) + machine->Inputs, + machine->Outputs, + machine->Consts, + machine->Temps, + machine->InterpCoefs ); + quad->mask &= ~(machine->Temps[TGSI_EXEC_TEMP_KILMASK_I].xyzw[TGSI_EXEC_TEMP_KILMASK_C].u[0]); +#endif + ga_llvm_prog_exec(softpipe->fs->llvm_prog); + + /* store result color */ + if (qss->colorOutSlot >= 0) { + /* XXX need to handle multiple color outputs someday */ + assert(qss->stage.softpipe->fs->shader.output_semantic_name[qss->colorOutSlot] + == TGSI_SEMANTIC_COLOR); + memcpy( + quad->outputs.color, + &machine->Outputs[qss->colorOutSlot].xyzw[0].f[0], + sizeof( quad->outputs.color ) ); + } + + /* store result Z */ + if (qss->depthOutSlot >= 0) { + /* output[slot] is new Z */ + uint i; + for (i = 0; i < 4; i++) { + quad->outputs.depth[i] = machine->Outputs[0].xyzw[2].f[i]; + } + } + else { + /* copy input Z (which was interpolated by the executor) to output Z */ + uint i; + for (i = 0; i < 4; i++) { + quad->outputs.depth[i] = machine->Inputs[0].xyzw[2].f[i]; + } + } + + /* shader may cull fragments */ + if( quad->mask ) { + qs->next->run( qs->next, quad ); + } +} +#endif /** * Per-primitive (or per-begin?) setup |