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[D3D12] DXBC internal r# stack allocation

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This commit is contained in:
Triang3l
2018-09-01 22:19:29 +03:00
parent da9f153a29
commit b404f227b1
2 changed files with 39 additions and 15 deletions
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36
src/xenia/gpu/dxbc_shader_translator.cc
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@@ -35,11 +35,29 @@ void DxbcShaderTranslator::Reset() {
shader_code_.clear();
rdef_constants_used_ = 0;
system_temp_count_current_ = 0;
system_temp_count_max_ = 0;
writes_depth_ = false;
std::memset(&stat_, 0, sizeof(stat_));
}
uint32_t DxbcShaderTranslator::PushSystemTemp() {
uint32_t register_index = system_temp_count_current_;
if (!uses_register_relative_addressing()) {
// Guest shader registers first if they're not in x0.
register_index += register_count();
}
++system_temp_count_current_;
system_temp_count_max_ =
std::max(system_temp_count_max_, system_temp_count_current_);
}
void DxbcShaderTranslator::PopSystemTemp(uint32_t count) {
assert_true(count <= system_temp_count_current_);
system_temp_count_current_ -= std::min(count, system_temp_count_current_);
}
void DxbcShaderTranslator::CompleteVertexShaderCode() {}
void DxbcShaderTranslator::CompletePixelShaderCode() {}
@@ -869,15 +887,17 @@ void DxbcShaderTranslator::WriteShaderCode() {
}
}
// Temporary registers - system registers, and also Xbox 360 general-purpose
// registers if not using dynamic indexing.
// Temporary registers - guest general-purpose registers if not using dynamic
// indexing and Xenia internal registers.
stat_.temp_register_count =
uint32_t(TempRegister::kCount) +
(uses_register_relative_addressing() ? 0 : register_count());
shader_object_.push_back(
ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_DCL_TEMPS) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(2));
shader_object_.push_back(stat_.temp_register_count);
(uses_register_relative_addressing() ? 0 : register_count()) +
system_temp_count_max_;
if (stat_.temp_register_count != 0) {
shader_object_.push_back(
ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_DCL_TEMPS) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(2));
shader_object_.push_back(stat_.temp_register_count);
}
// General-purpose registers if using dynamic indexing (x0).
if (uses_register_relative_addressing()) {