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[D3D12] DXBC main loop and labels

This commit is contained in:
Triang3l 2018-09-10 13:20:35 +03:00
parent 4268466383
commit f4b83cb670
2 changed files with 67 additions and 0 deletions
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65
src/xenia/gpu/dxbc_shader_translator.cc
View File

@ -493,6 +493,22 @@ void DxbcShaderTranslator::StartTranslation() {
} else if (is_pixel_shader()) { } else if (is_pixel_shader()) {
StartPixelShader(); StartPixelShader();
} }
// Start the main loop (for jumping to labels by setting pc and continuing).
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_LOOP) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(1));
++stat_.instruction_count;
++stat_.dynamic_flow_control_count;
// First label (pc == 0).
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_IF) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(3) |
ENCODE_D3D10_SB_INSTRUCTION_TEST_BOOLEAN(
D3D10_SB_INSTRUCTION_TEST_ZERO));
shader_code_.push_back(
EncodeVectorSelectOperand(D3D10_SB_OPERAND_TYPE_TEMP, 1, 1));
shader_code_.push_back(system_temp_ps_pc_p0_a0_);
++stat_.instruction_count;
++stat_.dynamic_flow_control_count;
} }
void DxbcShaderTranslator::CompleteVertexShader() { void DxbcShaderTranslator::CompleteVertexShader() {
@ -646,6 +662,18 @@ void DxbcShaderTranslator::CompletePixelShader() {
} }
void DxbcShaderTranslator::CompleteShaderCode() { void DxbcShaderTranslator::CompleteShaderCode() {
// Close the last label.
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_ENDIF) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(1));
++stat_.instruction_count;
// End the main loop.
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_BREAK) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(1));
++stat_.instruction_count;
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_ENDLOOP) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(1));
++stat_.instruction_count;
if (is_vertex_shader()) { if (is_vertex_shader()) {
// Release system_temp_position_. // Release system_temp_position_.
PopSystemTemp(); PopSystemTemp();
@ -1927,6 +1955,43 @@ void DxbcShaderTranslator::SwapVertexData(uint32_t vfetch_index,
PopSystemTemp(2); PopSystemTemp(2);
} }
void DxbcShaderTranslator::ProcessLabel(uint32_t cf_index) {
if (cf_index == 0) {
// 0 already added in the beginning.
return;
}
// Close the previous label.
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_ENDIF) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(1));
++stat_.instruction_count;
// pc <= cf_index
uint32_t test_register = PushSystemTemp();
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_UGE) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(7));
shader_code_.push_back(
EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b0001, 1));
shader_code_.push_back(test_register);
shader_code_.push_back(
EncodeScalarOperand(D3D10_SB_OPERAND_TYPE_IMMEDIATE32, 0));
shader_code_.push_back(cf_index);
shader_code_.push_back(
EncodeVectorSelectOperand(D3D10_SB_OPERAND_TYPE_TEMP, 1, 1));
shader_code_.push_back(system_temp_ps_pc_p0_a0_);
++stat_.instruction_count;
++stat_.uint_instruction_count;
// if (pc <= cf_index)
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_IF) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(3) |
ENCODE_D3D10_SB_INSTRUCTION_TEST_BOOLEAN(
D3D10_SB_INSTRUCTION_TEST_NONZERO));
shader_code_.push_back(
EncodeVectorSelectOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0, 1));
shader_code_.push_back(test_register);
++stat_.instruction_count;
++stat_.dynamic_flow_control_count;
PopSystemTemp();
}
void DxbcShaderTranslator::ProcessVertexFetchInstruction( void DxbcShaderTranslator::ProcessVertexFetchInstruction(
const ParsedVertexFetchInstruction& instr) { const ParsedVertexFetchInstruction& instr) {
if (instr.operand_count < 2 || if (instr.operand_count < 2 ||

2
src/xenia/gpu/dxbc_shader_translator.h
View File

@ -93,6 +93,8 @@ class DxbcShaderTranslator : public ShaderTranslator {
std::vector<uint8_t> CompleteTranslation() override; std::vector<uint8_t> CompleteTranslation() override;
void ProcessLabel(uint32_t cf_index) override;
void ProcessVertexFetchInstruction( void ProcessVertexFetchInstruction(
const ParsedVertexFetchInstruction& instr) override; const ParsedVertexFetchInstruction& instr) override;
void ProcessTextureFetchInstruction( void ProcessTextureFetchInstruction(