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-rw-r--r--src/gallium/drivers/softpipe/sp_state_derived.c21
1 files changed, 19 insertions, 2 deletions
diff --git a/src/gallium/drivers/softpipe/sp_state_derived.c b/src/gallium/drivers/softpipe/sp_state_derived.c
index 75551000c9b..9258f641091 100644
--- a/src/gallium/drivers/softpipe/sp_state_derived.c
+++ b/src/gallium/drivers/softpipe/sp_state_derived.c
@@ -91,6 +91,23 @@ softpipe_get_vertex_info(struct softpipe_context *softpipe)
vinfo->num_attribs = 0;
for (i = 0; i < spfs->info.num_inputs; i++) {
int src;
+ enum interp_mode interp;
+
+ switch (spfs->info.input_interpolate[i]) {
+ case TGSI_INTERPOLATE_CONSTANT:
+ interp = INTERP_CONSTANT;
+ break;
+ case TGSI_INTERPOLATE_LINEAR:
+ interp = INTERP_LINEAR;
+ break;
+ case TGSI_INTERPOLATE_PERSPECTIVE:
+ interp = INTERP_PERSPECTIVE;
+ break;
+ default:
+ assert(0);
+ interp = INTERP_LINEAR;
+ }
+
switch (spfs->info.input_semantic_name[i]) {
case TGSI_SEMANTIC_POSITION:
src = draw_find_vs_output(softpipe->draw,
@@ -106,7 +123,7 @@ softpipe_get_vertex_info(struct softpipe_context *softpipe)
case TGSI_SEMANTIC_FOG:
src = draw_find_vs_output(softpipe->draw, TGSI_SEMANTIC_FOG, 0);
- draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, src);
+ draw_emit_vertex_attr(vinfo, EMIT_4F, interp, src);
break;
case TGSI_SEMANTIC_GENERIC:
@@ -114,7 +131,7 @@ softpipe_get_vertex_info(struct softpipe_context *softpipe)
/* this includes texcoords and varying vars */
src = draw_find_vs_output(softpipe->draw, TGSI_SEMANTIC_GENERIC,
spfs->info.input_semantic_index[i]);
- draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, src);
+ draw_emit_vertex_attr(vinfo, EMIT_4F, interp, src);
break;
default: