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r300/compiler: Fix black terrain in Civ4

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rc_inst_can_use_presub() wasn't checking for too many RGB sources in
Alpha instructions or too many Alpha sources in RGB instructions.

Note: This is a candidate for the 7.10 branch.
This commit is contained in:
Tom Stellard
2011-01-04 10:53:49 -08:00
parent 68d06b1454
commit e96e86d07b
1 changed files with 1 additions and 8 deletions
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src/mesa/drivers/dri/r300/compiler/radeon_compiler_util.c
+1 -8
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@@ -223,7 +223,6 @@ unsigned int rc_inst_can_use_presub(
{
struct can_use_presub_data d;
unsigned int num_presub_srcs;
unsigned int presub_src_type = rc_source_type_mask(presub_writemask);
const struct rc_opcode_info * info =
rc_get_opcode_info(inst->U.I.Opcode);
@@ -253,13 +252,7 @@ unsigned int rc_inst_can_use_presub(
num_presub_srcs = rc_presubtract_src_reg_count(presub_op);
if ((presub_src_type & RC_SOURCE_RGB)
&& d.RGBCount + num_presub_srcs > 3) {
return 0;
}
if ((presub_src_type & RC_SOURCE_ALPHA)
&& d.AlphaCount + num_presub_srcs > 3) {
if (d.RGBCount + num_presub_srcs > 3 || d.AlphaCount + num_presub_srcs > 3) {
return 0;
}