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authorBrian Paul <brian.paul@tungstengraphics.com>2005-10-21 15:22:36 +0000
committerBrian Paul <brian.paul@tungstengraphics.com>2005-10-21 15:22:36 +0000
commit54cfe69436c7b4749b01c5f8b74ba3d790ea2657 (patch)
tree4591a928aa38f0177d1ff54c75e59ed9eebef411 /src/mesa/swrast/s_nvfragprog.c
parentb3f2e1503530383de98dfa8e35c24c7b38a37b63 (diff)
fix broken SWZ instruction
Diffstat (limited to 'src/mesa/swrast/s_nvfragprog.c')
-rw-r--r--src/mesa/swrast/s_nvfragprog.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/mesa/swrast/s_nvfragprog.c b/src/mesa/swrast/s_nvfragprog.c
index 44a3b6d844..441d1e8ca7 100644
--- a/src/mesa/swrast/s_nvfragprog.c
+++ b/src/mesa/swrast/s_nvfragprog.c
@@ -1155,15 +1155,15 @@ execute_program( GLcontext *ctx,
GLuint i;
/* do extended swizzling here */
- for (i = 0; i < 3; i++) {
+ for (i = 0; i < 4; i++) {
if (GET_SWZ(source->Swizzle, i) == SWIZZLE_ZERO)
result[i] = 0.0;
else if (GET_SWZ(source->Swizzle, i) == SWIZZLE_ONE)
- result[i] = -1.0;
+ result[i] = 1.0;
else
- result[i] = -src[GET_SWZ(source->Swizzle, i)];
+ result[i] = src[GET_SWZ(source->Swizzle, i)];
- if (source->NegateBase)
+ if (source->NegateBase & (1 << i))
result[i] = -result[i];
}
store_vector4( inst, machine, result );