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fix a few bugs in SWZ execution

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This commit is contained in:
Brian Paul 2005-10-29 16:03:19 +00:00
parent db02ab767f
commit 4174f79b19
1 changed files with 5 additions and 5 deletions
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10
src/mesa/shader/nvvertexec.c
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@ -1,6 +1,6 @@
/*
* Mesa 3-D graphics library
* Version: 6.3
* Version: 6.5
*
* Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
*
@ -765,14 +765,14 @@ _mesa_exec_vertex_program(GLcontext *ctx, const struct vertex_program *program)
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)];
if (source->Negate)
result[i] = src[GET_SWZ(source->Swizzle, i)];
if (source->Negate & (1 << i))
result[i] = -result[i];
}
store_vector4( &inst->DstReg, state, result );