The sin() and cos() functions used to be available only in
ARB_fragment_program and not ARB_vertex_program. However, they are
perfectly valid in GLSL 1.10 (and later) vertex shaders. Attached patch
fixes this for the i965 driver.
Regards,
--
Sam.
>From 3fa30751182420c39daf32a57193b6518e9ca3d2 Mon Sep 17 00:00:00 2001
From: Sam Hocevar <[EMAIL PROTECTED]>
Date: Thu, 25 Sep 2008 10:49:05 +0200
Subject: [PATCH] i965: support for sin() and cos() in vertex shaders.
---
src/mesa/drivers/dri/i965/brw_vs_emit.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_vs_emit.c b/src/mesa/drivers/dri/i965/brw_vs_emit.c
index b0b0449..9de0540 100644
--- a/src/mesa/drivers/dri/i965/brw_vs_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_vs_emit.c
@@ -1024,6 +1024,9 @@ void brw_vs_emit(struct brw_vs_compile *c )
case OPCODE_ADD:
brw_ADD(p, dst, args[0], args[1]);
break;
+ case OPCODE_COS:
+ emit_math1(c, BRW_MATH_FUNCTION_COS, dst, args[0], BRW_MATH_PRECISION_FULL);
+ break;
case OPCODE_DP3:
brw_DP3(p, dst, args[0], args[1]);
break;
@@ -1089,6 +1092,9 @@ void brw_vs_emit(struct brw_vs_compile *c )
case OPCODE_SEQ:
emit_seq(p, dst, args[0], args[1]);
break;
+ case OPCODE_SIN:
+ emit_math1(c, BRW_MATH_FUNCTION_SIN, dst, args[0], BRW_MATH_PRECISION_FULL);
+ break;
case OPCODE_SNE:
emit_sne(p, dst, args[0], args[1]);
break;
--
1.5.6.5
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