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r300/compiler: apply the texture swizzle to shadow pass and fail values too

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Piglit tests:
- glsl-fs-shadow2d-01
- glsl-fs-shadow2d-02
- glsl-fs-shadow2d-03
- fs-shadow2d-red-01
- fs-shadow2d-red-02
- fs-shadow2d-red-03

NOTE: This is a candidate for the stable branches.
(cherry picked from commit 0d96ae8fc7)
This commit is contained in:
Marek Olšák 2011-04-04 18:55:08 +02:00
parent f3a21be95e
commit cd2cf02139
1 changed files with 20 additions and 8 deletions
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28
src/mesa/drivers/dri/r300/compiler/radeon_program_tex.c
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@ -32,8 +32,8 @@
/* Series of transformations to be done on textures. */
static struct rc_src_register shadow_ambient(struct r300_fragment_program_compiler *compiler,
int tmu)
static struct rc_src_register shadow_fail_value(struct r300_fragment_program_compiler *compiler,
int tmu)
{
struct rc_src_register reg = { 0, };
@ -46,6 +46,20 @@ static struct rc_src_register shadow_ambient(struct r300_fragment_program_compil
reg.File = RC_FILE_NONE;
reg.Swizzle = RC_SWIZZLE_0000;
}
reg.Swizzle = combine_swizzles(reg.Swizzle,
compiler->state.unit[tmu].depth_texture_swizzle);
return reg;
}
static struct rc_src_register shadow_pass_value(struct r300_fragment_program_compiler *compiler,
int tmu)
{
struct rc_src_register reg = { 0, };
reg.File = RC_FILE_NONE;
reg.Swizzle = combine_swizzles(RC_SWIZZLE_1111,
compiler->state.unit[tmu].depth_texture_swizzle);
return reg;
}
@ -141,10 +155,9 @@ int radeonTransformTEX(
inst->U.I.Opcode = RC_OPCODE_MOV;
if (comparefunc == RC_COMPARE_FUNC_ALWAYS) {
inst->U.I.SrcReg[0].File = RC_FILE_NONE;
inst->U.I.SrcReg[0].Swizzle = RC_SWIZZLE_1111;
inst->U.I.SrcReg[0] = shadow_pass_value(compiler, inst->U.I.TexSrcUnit);
} else {
inst->U.I.SrcReg[0] = shadow_ambient(compiler, inst->U.I.TexSrcUnit);
inst->U.I.SrcReg[0] = shadow_fail_value(compiler, inst->U.I.TexSrcUnit);
}
return 1;
@ -244,9 +257,8 @@ int radeonTransformTEX(
inst_cmp->U.I.SrcReg[0].Swizzle =
combine_swizzles(RC_SWIZZLE_WWWW,
compiler->state.unit[inst->U.I.TexSrcUnit].depth_texture_swizzle);
inst_cmp->U.I.SrcReg[pass].File = RC_FILE_NONE;
inst_cmp->U.I.SrcReg[pass].Swizzle = RC_SWIZZLE_1111;
inst_cmp->U.I.SrcReg[fail] = shadow_ambient(compiler, inst->U.I.TexSrcUnit);
inst_cmp->U.I.SrcReg[pass] = shadow_pass_value(compiler, inst->U.I.TexSrcUnit);
inst_cmp->U.I.SrcReg[fail] = shadow_fail_value(compiler, inst->U.I.TexSrcUnit);
assert(tmp_texsample != tmp_sum);
}