diff options
Diffstat (limited to 'src/mesa/state_tracker/st_atom_shader.c')
| -rw-r--r-- | src/mesa/state_tracker/st_atom_shader.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/src/mesa/state_tracker/st_atom_shader.c b/src/mesa/state_tracker/st_atom_shader.c index 4ec10badad..33372b0f39 100644 --- a/src/mesa/state_tracker/st_atom_shader.c +++ b/src/mesa/state_tracker/st_atom_shader.c @@ -151,8 +151,7 @@ find_translated_vp(struct st_context *st, { static const GLuint UNUSED = ~0; struct translated_vertex_program *xvp; - const GLbitfield fragInputsRead - = stfp->Base.Base.InputsRead | FRAG_BIT_WPOS; + const GLbitfield fragInputsRead = stfp->Base.Base.InputsRead; /* * Translate fragment program if needed. @@ -206,6 +205,7 @@ find_translated_vp(struct st_context *st, if (xvp->serialNo != stvp->serialNo) { GLuint outAttr, dummySlot; const GLbitfield outputsWritten = stvp->Base.Base.OutputsWritten; + GLuint numVpOuts = 0; /* Compute mapping of vertex program outputs to slots, which depends * on the fragment program's input->slot mapping. @@ -214,11 +214,24 @@ find_translated_vp(struct st_context *st, /* set default: */ xvp->output_to_slot[outAttr] = UNUSED; - if (outputsWritten & (1 << outAttr)) { + if (outAttr == VERT_RESULT_HPOS) { + /* always put xformed position into slot zero */ + xvp->output_to_slot[VERT_RESULT_HPOS] = 0; + numVpOuts++; + } + else if (outputsWritten & (1 << outAttr)) { /* see if the frag prog wants this vert output */ - GLint fpIn = vp_out_to_fp_in(outAttr); - if (fpIn >= 0) { - xvp->output_to_slot[outAttr] = stfp->input_to_slot[fpIn]; + GLint fpInAttrib = vp_out_to_fp_in(outAttr); + if (fpInAttrib >= 0) { + GLuint fpInSlot = stfp->input_to_slot[fpInAttrib]; + GLuint vpOutSlot = stfp->fs->state.input_map[fpInSlot]; + xvp->output_to_slot[outAttr] = vpOutSlot; + numVpOuts++; + } + else if (outAttr == VERT_RESULT_BFC0 || + outAttr == VERT_RESULT_BFC1) { + /* backface colors go into last slots */ + xvp->output_to_slot[outAttr] = numVpOuts++; } } } |