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radeonsi: implement SAMPLEMASK fragment shader output

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This commit is contained in:
Marek Olšák
2014-05-06 20:04:31 +02:00
parent 99df120e00
commit d0e8b65aed
1 changed files with 15 additions and 3 deletions
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18
src/gallium/drivers/radeonsi/si_shader.c
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@@ -1346,7 +1346,7 @@ static void si_llvm_emit_fs_epilogue(struct lp_build_tgsi_context * bld_base)
LLVMValueRef args[9];
LLVMValueRef last_args[9] = { 0 };
unsigned semantic_name;
int depth_index = -1, stencil_index = -1;
int depth_index = -1, stencil_index = -1, samplemask_index = -1;
int i;
while (!tgsi_parse_end_of_tokens(parse)) {
@@ -1379,6 +1379,9 @@ static void si_llvm_emit_fs_epilogue(struct lp_build_tgsi_context * bld_base)
case TGSI_SEMANTIC_STENCIL:
stencil_index = index;
continue;
case TGSI_SEMANTIC_SAMPLEMASK:
samplemask_index = index;
continue;
case TGSI_SEMANTIC_COLOR:
target = V_008DFC_SQ_EXP_MRT + d->Semantic.Index;
if (si_shader_ctx->shader->key.ps.alpha_to_one)
@@ -1436,7 +1439,7 @@ static void si_llvm_emit_fs_epilogue(struct lp_build_tgsi_context * bld_base)
}
}
if (depth_index >= 0 || stencil_index >= 0) {
if (depth_index >= 0 || stencil_index >= 0 || samplemask_index >= 0) {
LLVMValueRef out_ptr;
unsigned mask = 0;
@@ -1466,7 +1469,16 @@ static void si_llvm_emit_fs_epilogue(struct lp_build_tgsi_context * bld_base)
S_02880C_STENCIL_TEST_VAL_EXPORT_ENABLE(1);
}
if (stencil_index >= 0)
if (samplemask_index >= 0) {
out_ptr = si_shader_ctx->radeon_bld.soa.outputs[samplemask_index][0];
args[7] = LLVMBuildLoad(base->gallivm->builder, out_ptr, "");
mask |= 0xf; /* Set all components. */
si_shader_ctx->shader->db_shader_control |= S_02880C_MASK_EXPORT_ENABLE(1);
}
if (samplemask_index >= 0)
si_shader_ctx->shader->spi_shader_z_format = V_028710_SPI_SHADER_32_ABGR;
else if (stencil_index >= 0)
si_shader_ctx->shader->spi_shader_z_format = V_028710_SPI_SHADER_32_GR;
else
si_shader_ctx->shader->spi_shader_z_format = V_028710_SPI_SHADER_32_R;