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radeonsi: move MRT color exporting into a separate function

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This will be used by a fragment shader epilog.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This commit is contained in:
Marek Olšák 2015-12-27 20:02:41 +01:00
parent 0ffe3d3772
commit a72ed2f6bc
1 changed files with 57 additions and 41 deletions
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98
src/gallium/drivers/radeonsi/si_shader.c
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@ -2135,6 +2135,57 @@ static void si_export_mrt_z(struct lp_build_tgsi_context *bld_base,
args, 9, 0);
}
static void si_export_mrt_color(struct lp_build_tgsi_context *bld_base,
LLVMValueRef *color, unsigned index,
bool is_last)
{
struct si_shader_context *si_shader_ctx = si_shader_context(bld_base);
struct lp_build_context *base = &bld_base->base;
LLVMValueRef args[9];
int i;
/* Clamp color */
if (si_shader_ctx->shader->key.ps.clamp_color)
for (i = 0; i < 4; i++)
color[i] = radeon_llvm_saturate(bld_base, color[i]);
/* Alpha to one */
if (si_shader_ctx->shader->key.ps.alpha_to_one)
color[3] = base->one;
/* Alpha test */
if (index == 0 &&
si_shader_ctx->shader->key.ps.alpha_func != PIPE_FUNC_ALWAYS)
si_alpha_test(bld_base, color[3]);
/* Line & polygon smoothing */
if (si_shader_ctx->shader->key.ps.poly_line_smoothing)
color[3] = si_scale_alpha_by_sample_mask(bld_base, color[3]);
/* If last_cbuf > 0, FS_COLOR0_WRITES_ALL_CBUFS is true. */
if (index == 0 &&
si_shader_ctx->shader->key.ps.last_cbuf > 0) {
for (int c = 1; c <= si_shader_ctx->shader->key.ps.last_cbuf; c++) {
si_llvm_init_export_args(bld_base, color,
V_008DFC_SQ_EXP_MRT + c, args);
lp_build_intrinsic(base->gallivm->builder, "llvm.SI.export",
LLVMVoidTypeInContext(base->gallivm->context),
args, 9, 0);
}
}
/* Export */
si_llvm_init_export_args(bld_base, color, V_008DFC_SQ_EXP_MRT + index,
args);
if (is_last) {
args[1] = bld_base->uint_bld.one; /* whether the EXEC mask is valid */
args[2] = bld_base->uint_bld.one; /* DONE bit */
}
lp_build_intrinsic(base->gallivm->builder, "llvm.SI.export",
LLVMVoidTypeInContext(base->gallivm->context),
args, 9, 0);
}
static void si_llvm_emit_fs_epilogue(struct lp_build_tgsi_context * bld_base)
{
struct si_shader_context * si_shader_ctx = si_shader_context(bld_base);
@ -2177,7 +2228,7 @@ static void si_llvm_emit_fs_epilogue(struct lp_build_tgsi_context * bld_base)
for (i = 0; i < info->num_outputs; i++) {
unsigned semantic_name = info->output_semantic_name[i];
unsigned semantic_index = info->output_semantic_index[i];
unsigned target, j;
unsigned j;
LLVMValueRef color[4] = {};
/* Select the correct target */
@ -2185,63 +2236,28 @@ static void si_llvm_emit_fs_epilogue(struct lp_build_tgsi_context * bld_base)
case TGSI_SEMANTIC_POSITION:
depth = LLVMBuildLoad(builder,
si_shader_ctx->radeon_bld.soa.outputs[i][2], "");
continue;
break;
case TGSI_SEMANTIC_STENCIL:
stencil = LLVMBuildLoad(builder,
si_shader_ctx->radeon_bld.soa.outputs[i][1], "");
continue;
break;
case TGSI_SEMANTIC_SAMPLEMASK:
samplemask = LLVMBuildLoad(builder,
si_shader_ctx->radeon_bld.soa.outputs[i][0], "");
continue;
break;
case TGSI_SEMANTIC_COLOR:
target = V_008DFC_SQ_EXP_MRT + semantic_index;
for (j = 0; j < 4; j++)
color[j] = LLVMBuildLoad(builder,
si_shader_ctx->radeon_bld.soa.outputs[i][j], "");
if (si_shader_ctx->shader->key.ps.clamp_color)
for (j = 0; j < 4; j++)
color[j] = radeon_llvm_saturate(bld_base, color[j]);
if (si_shader_ctx->shader->key.ps.alpha_to_one)
color[3] = base->one;
if (semantic_index == 0 &&
si_shader_ctx->shader->key.ps.alpha_func != PIPE_FUNC_ALWAYS)
si_alpha_test(bld_base, color[3]);
if (si_shader_ctx->shader->key.ps.poly_line_smoothing)
color[3] = si_scale_alpha_by_sample_mask(bld_base, color[3]);
si_export_mrt_color(bld_base, color, semantic_index,
last_color_export == i);
break;
default:
fprintf(stderr,
"Warning: SI unhandled fs output type:%d\n",
semantic_name);
continue;
}
/* If last_cbuf > 0, FS_COLOR0_WRITES_ALL_CBUFS is true. */
if (semantic_index == 0 &&
si_shader_ctx->shader->key.ps.last_cbuf > 0) {
for (int c = 1; c <= si_shader_ctx->shader->key.ps.last_cbuf; c++) {
si_llvm_init_export_args(bld_base, color,
V_008DFC_SQ_EXP_MRT + c, args);
lp_build_intrinsic(base->gallivm->builder, "llvm.SI.export",
LLVMVoidTypeInContext(base->gallivm->context),
args, 9, 0);
}
}
si_llvm_init_export_args(bld_base, color, target, args);
if (last_color_export == i) {
args[1] = uint->one; /* whether the EXEC mask is valid */
args[2] = uint->one; /* DONE bit */
}
lp_build_intrinsic(base->gallivm->builder, "llvm.SI.export",
LLVMVoidTypeInContext(base->gallivm->context),
args, 9, 0);
}
if (depth || stencil || samplemask)