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radeonsi: assume ClipDistance usage mask is always 0xf 

No code in Mesa sets the usage mask to any other value.
The final mask is AND'ed with enable bits from the rasterizer state anyway.

If somebody implements setting usage masks in st/mesa, we can use
tgsi_shader_info to get it more easily.

This is a prerequisite for the following commit.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
This commit is contained in:
Marek Olšák 2014-10-04 19:09:09 +02:00
parent 2286edce16
commit a9592cd3ac
2 changed files with 2 additions and 8 deletions
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9
src/gallium/drivers/radeonsi/si_shader.c
View File

@ -51,7 +51,6 @@ struct si_shader_output_values
unsigned name;
unsigned index;
unsigned sid;
unsigned usage;
};
struct si_shader_context
@ -256,7 +255,6 @@ static int si_store_shader_io_attribs(struct si_shader *shader,
shader->output[i].name = d->Semantic.Name;
shader->output[i].sid = d->Semantic.Index;
shader->output[i].index = d->Range.First;
shader->output[i].usage = d->Declaration.UsageMask;
break;
}
@ -1135,7 +1133,7 @@ static void si_llvm_export_vs(struct lp_build_tgsi_context *bld_base,
LLVMValueRef args[9];
LLVMValueRef pos_args[4][9] = { { 0 } };
LLVMValueRef psize_value = NULL, edgeflag_value = NULL, layer_value = NULL;
unsigned semantic_name, semantic_index, semantic_usage;
unsigned semantic_name, semantic_index;
unsigned target;
unsigned param_count = 0;
unsigned pos_idx;
@ -1148,7 +1146,6 @@ static void si_llvm_export_vs(struct lp_build_tgsi_context *bld_base,
for (i = 0; i < noutput; i++) {
semantic_name = outputs[i].name;
semantic_index = outputs[i].sid;
semantic_usage = outputs[i].usage;
handle_semantic:
/* Select the correct target */
@ -1182,7 +1179,7 @@ handle_semantic:
(1 << semantic_index)))
continue;
shader->clip_dist_write |=
semantic_usage << (semantic_index << 2);
0xf << (semantic_index * 4);
target = V_008DFC_SQ_EXP_POS + 2 + semantic_index;
break;
case TGSI_SEMANTIC_CLIPVERTEX:
@ -1394,7 +1391,6 @@ static void si_llvm_emit_vs_epilogue(struct lp_build_tgsi_context * bld_base)
outputs[noutput].index = index;
outputs[noutput].name = d->Semantic.Name;
outputs[noutput].sid = d->Semantic.Index;
outputs[noutput].usage = d->Declaration.UsageMask;
for (i = 0; i < 4; i++)
outputs[noutput].values[i] =
@ -2758,7 +2754,6 @@ static int si_generate_gs_copy_shader(struct si_screen *sscreen,
outputs[i].name = out->name;
outputs[i].index = out->index;
outputs[i].sid = out->sid;
outputs[i].usage = out->usage;
for (chan = 0; chan < 4; chan++) {
args[2] = lp_build_const_int32(gallivm,

1
src/gallium/drivers/radeonsi/si_shader.h
View File

@ -110,7 +110,6 @@ struct si_shader_output {
int sid;
unsigned param_offset;
unsigned index;
unsigned usage;
};
struct si_shader;