diff options
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_state_derived.c')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_state_derived.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_state_derived.c b/src/gallium/drivers/llvmpipe/lp_state_derived.c index 77bec4640b..edd723f65f 100644 --- a/src/gallium/drivers/llvmpipe/lp_state_derived.c +++ b/src/gallium/drivers/llvmpipe/lp_state_derived.c @@ -74,6 +74,15 @@ compute_vertex_info(struct llvmpipe_context *llvmpipe) vs_index = draw_find_shader_output(llvmpipe->draw, lpfs->info.input_semantic_name[i], lpfs->info.input_semantic_index[i]); + if (vs_index < 0) { + /* + * This can happen with sprite coordinates - the vertex + * shader doesn't need to provide an output as we generate + * them internally. However, lets keep pretending that there + * is something there to not confuse other code. + */ + vs_index = 0; + } /* This can be pre-computed, except for flatshade: */ @@ -125,6 +134,17 @@ compute_vertex_info(struct llvmpipe_context *llvmpipe) inputs[i].src_index = vinfo->num_attribs; draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, vs_index); } + + /* Figure out if we need pointsize as well. + */ + vs_index = draw_find_shader_output(llvmpipe->draw, + TGSI_SEMANTIC_PSIZE, 0); + + if (vs_index > 0) { + llvmpipe->psize_slot = vinfo->num_attribs; + draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_CONSTANT, vs_index); + } + llvmpipe->num_inputs = lpfs->info.num_inputs; draw_compute_vertex_size(vinfo); |