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tgsi: pass zero vector to texture sampler for 1D case instead of NULL

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Fixes segfault when sampling 1D textures.
This commit is contained in:
Brian Paul 2009-03-26 08:40:07 -06:00
parent a2f52f500c
commit 3673189326
1 changed files with 5 additions and 1 deletions
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6
src/gallium/auxiliary/tgsi/tgsi_exec.c
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@ -123,6 +123,10 @@
#define UPDATE_EXEC_MASK(MACH) \
MACH->ExecMask = MACH->CondMask & MACH->LoopMask & MACH->ContMask & MACH->FuncMask
static const union tgsi_exec_channel ZeroVec =
{ { 0.0, 0.0, 0.0, 0.0 } };
/**
* Initialize machine state by expanding tokens to full instructions,
* allocating temporary storage, setting up constants, etc.
@ -1643,7 +1647,7 @@ exec_tex(struct tgsi_exec_machine *mach,
lodBias = 0.0;
fetch_texel(mach->Samplers[unit],
&r[0], NULL, NULL, lodBias, /* S, T, P, BIAS */
&r[0], &ZeroVec, &ZeroVec, lodBias, /* S, T, P, BIAS */
&r[0], &r[1], &r[2], &r[3]); /* R, G, B, A */
break;