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i965/vs: Set LOD to 0 for ordinary texture() calls.

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Previously it was left undefined, causing us to select a random LOD.

NOTE: This is a candidate for stable branches.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <idr@freedesktop.org>
This commit is contained in:
Kenneth Graunke 2013-01-16 19:09:52 -08:00
parent 56ce55d198
commit aeff9a0d98
1 changed files with 5 additions and 2 deletions
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7
src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
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@ -1956,6 +1956,10 @@ vec4_visitor::visit(ir_texture *ir)
const glsl_type *lod_type;
src_reg lod, dPdx, dPdy;
switch (ir->op) {
case ir_tex:
lod = src_reg(0.0f);
lod_type = glsl_type::float_type;
break;
case ir_txf:
case ir_txl:
case ir_txs:
@ -1972,7 +1976,6 @@ vec4_visitor::visit(ir_texture *ir)
lod_type = ir->lod_info.grad.dPdx->type;
break;
case ir_tex:
case ir_txb:
break;
}
@ -2055,7 +2058,7 @@ vec4_visitor::visit(ir_texture *ir)
}
/* Load the LOD info */
if (ir->op == ir_txl) {
if (ir->op == ir_tex || ir->op == ir_txl) {
int mrf, writemask;
if (intel->gen >= 5) {
mrf = param_base + 1;