Mesa (master): st/mesa: 'fix' point coord semantic info
Brian Paul
brianp at kemper.freedesktop.org
Fri Feb 5 17:00:21 UTC 2010
Module: Mesa
Branch: master
Commit: f1d544d6a62fe950ddc113473cba83619caaec6b
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=f1d544d6a62fe950ddc113473cba83619caaec6b
Author: Brian Paul <brianp at vmware.com>
Date: Fri Feb 5 09:52:29 2010 -0700
st/mesa: 'fix' point coord semantic info
This fixes the progs/glsl/pointcoord.c demo. But this isn't a proper fix.
We really need a TGSI_SEMANTIC_POINT_COORD label so that the draw module
can determine which fragment input / vertex output slot needs to be set
up with the point coordinate info. We've been using generic slot 0 so far.
This would also require telling the draw module about fragment shaders
(something it doesn't have at this time).
---
src/mesa/state_tracker/st_program.c | 11 ++++++++++-
1 files changed, 10 insertions(+), 1 deletions(-)
diff --git a/src/mesa/state_tracker/st_program.c b/src/mesa/state_tracker/st_program.c
index a639003..21ad6fe 100644
--- a/src/mesa/state_tracker/st_program.c
+++ b/src/mesa/state_tracker/st_program.c
@@ -325,6 +325,16 @@ st_translate_fragment_program(struct st_context *st,
stfp->input_semantic_index[slot] = 0;
interpMode[slot] = TGSI_INTERPOLATE_CONSTANT;
break;
+ case FRAG_ATTRIB_PNTC:
+ /* This is a hack. We really need a new semantic label for
+ * point coord. The draw module needs to know which fragment
+ * shader input is the point coord attribute so that it can set
+ * up the right vertex attribute values.
+ */
+ stfp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+ stfp->input_semantic_index[slot] = 0;
+ interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
+ break;
/* In most cases, there is nothing special about these
* inputs, so adopt a convention to use the generic
@@ -349,7 +359,6 @@ st_translate_fragment_program(struct st_context *st,
case FRAG_ATTRIB_TEX5:
case FRAG_ATTRIB_TEX6:
case FRAG_ATTRIB_TEX7:
- case FRAG_ATTRIB_PNTC:
case FRAG_ATTRIB_VAR0:
default:
/* Actually, let's try and zero-base this just for
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