- /* Compute mapping of vertex program outputs to slots, which depends
- * on the fragment program's input->slot mapping.
- */
- for (outAttr = 0; outAttr < VERT_RESULT_MAX; outAttr++) {
- /* set defaults: */
- xvp->output_to_slot[outAttr] = UNUSED;
- xvp->output_to_semantic_name[outAttr] = TGSI_SEMANTIC_COUNT;
- xvp->output_to_semantic_index[outAttr] = 99;
-
- if (outAttr == VERT_RESULT_HPOS) {
- /* always put xformed position into slot zero */
- xvp->output_to_slot[VERT_RESULT_HPOS] = 0;
- xvp->output_to_semantic_name[outAttr] = TGSI_SEMANTIC_POSITION;
- xvp->output_to_semantic_index[outAttr] = 0;
- numVpOuts++;
- }
- else if (outputsWritten & (1 << outAttr)) {
- /* see if the frag prog wants this vert output */
- GLint fpInAttrib = vp_out_to_fp_in(outAttr);
- if (fpInAttrib >= 0) {
- GLuint fpInSlot = stfp->input_to_slot[fpInAttrib];
- if (fpInSlot != ~0) {
- /* match this vp output to the fp input */
- GLuint vpOutSlot = stfp->input_map[fpInSlot];
- xvp->output_to_slot[outAttr] = vpOutSlot;
- xvp->output_to_semantic_name[outAttr] = stfp->input_semantic_name[fpInSlot];
- xvp->output_to_semantic_index[outAttr] = stfp->input_semantic_index[fpInSlot];
- numVpOuts++;
- }
- }
- else if (outAttr == VERT_RESULT_PSIZ)
- emitPntSize = GL_TRUE;
- else if (outAttr == VERT_RESULT_BFC0)
- emitBFC0 = GL_TRUE;
- else if (outAttr == VERT_RESULT_BFC1)
- emitBFC1 = GL_TRUE;
- }
-#if 0 /*debug*/
- printf("assign vp output_to_slot[%d] = %d\n", outAttr,
- xvp->output_to_slot[outAttr]);
-#endif
- }
+ /* Nothing in our key yet. This will change:
+ */
+ memset(&key, 0, sizeof key);
+
+ /* When this is true, we will add an extra input to the vertex
+ * shader translation (for edgeflags), an extra output with
+ * edgeflag semantics, and extend the vertex shader to pass through
+ * the input to the output. We'll need to use similar logic to set
+ * up the extra vertex_element input for edgeflags.
+ * _NEW_POLYGON, ST_NEW_EDGEFLAGS_DATA
+ */
+ key.passthrough_edgeflags = (st->vertdata_edgeflags && (
+ st->ctx->Polygon.FrontMode != GL_FILL ||
+ st->ctx->Polygon.BackMode != GL_FILL));