ShuriZma
/
xenia
mirror of https://github.com/xenia-project/xenia.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[D3D12] Alpha to coverage (w/o dithering) with RTV, tiny AtoC fixes

This commit is contained in:
Triang3l 2019-01-21 23:37:20 +03:00
parent 0a9feb5eca
commit 9dd62c1e15
3 changed files with 271 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/xenia/gpu/d3d12/pipeline_cache.cc
View File

@ -625,13 +625,15 @@ bool PipelineCache::GetCurrentStateDescription(
description_out.depth_func = 0b111;
}
// Forced early Z if the shader allows that and alpha testing is disabled.
// Forced early Z if the shader allows that and alpha testing and alpha to
// coverage are disabled.
// TODO(Triang3l): For memexporting shaders, possibly choose this according
// to the early Z toggle in RB_DEPTHCONTROL (the correct behavior is still
// unknown).
if (pixel_shader != nullptr &&
pixel_shader->GetForcedEarlyZShaderObject().size() != 0 &&
(!(rb_colorcontrol & 0x8) || (rb_colorcontrol & 0x7) == 0x7)) {
(!(rb_colorcontrol & 0x8) || (rb_colorcontrol & 0x7) == 0x7) &&
!(rb_colorcontrol & 0x10)) {
description_out.force_early_z = 1;
}

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

@ -856,6 +856,8 @@ class DxbcShaderTranslator : public ShaderTranslator {
// This just converts the color output value from/to gamma space, not checking
// any conditions.
void CompletePixelShader_GammaCorrect(uint32_t color_temp, bool to_gamma);
// Discards the SSAA sample if it fails alpha to coverage.
void CompletePixelShader_WriteToRTVs_AlphaToCoverage();
void CompletePixelShader_WriteToRTVs();
inline uint32_t GetEDRAMUAVIndex() const {
// xe_edram is U1 when there's xe_shared_memory_uav which is U0, but when

271
src/xenia/gpu/dxbc_shader_translator_om.cc
View File

@ -913,10 +913,269 @@ void DxbcShaderTranslator::CompletePixelShader_GammaCorrect(uint32_t color_temp,
PopSystemTemp();
}
void DxbcShaderTranslator::CompletePixelShader_WriteToRTVs() {
// TODO(Triang3l): Alpha to coverage.
void DxbcShaderTranslator::CompletePixelShader_WriteToRTVs_AlphaToCoverage() {
if (is_depth_only_pixel_shader_ || !writes_color_target(0)) {
return;
}
// Apply the exponent bias before writing the color.
// Refer to CompletePixelShader_WriteToROV_GetCoverage for the description of
// the alpha to coverage pattern used.
uint32_t atoc_temp = PushSystemTemp();
// Extract the flag to check if alpha to coverage is enabled.
system_constants_used_ |= 1ull << kSysConst_Flags_Index;
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_AND) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(9));
shader_code_.push_back(
EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b0001, 1));
shader_code_.push_back(atoc_temp);
shader_code_.push_back(EncodeVectorSelectOperand(
D3D10_SB_OPERAND_TYPE_CONSTANT_BUFFER, kSysConst_Flags_Comp, 3));
shader_code_.push_back(cbuffer_index_system_constants_);
shader_code_.push_back(uint32_t(CbufferRegister::kSystemConstants));
shader_code_.push_back(kSysConst_Flags_Vec);
shader_code_.push_back(
EncodeScalarOperand(D3D10_SB_OPERAND_TYPE_IMMEDIATE32, 0));
shader_code_.push_back(kSysFlag_AlphaToCoverage);
++stat_.instruction_count;
++stat_.uint_instruction_count;
// Check if alpha to coverage is enabled.
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_IF) |
ENCODE_D3D10_SB_INSTRUCTION_TEST_BOOLEAN(
D3D10_SB_INSTRUCTION_TEST_NONZERO) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(3));
shader_code_.push_back(
EncodeVectorSelectOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0, 1));
shader_code_.push_back(atoc_temp);
++stat_.instruction_count;
++stat_.dynamic_flow_control_count;
// Convert SSAA sample position to integer.
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_FTOU) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(5));
shader_code_.push_back(
EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b0011, 1));
shader_code_.push_back(atoc_temp);
shader_code_.push_back(EncodeVectorSwizzledOperand(
D3D10_SB_OPERAND_TYPE_INPUT, kSwizzleXYZW, 1));
shader_code_.push_back(uint32_t(InOutRegister::kPSInPosition));
++stat_.instruction_count;
++stat_.conversion_instruction_count;
// Get SSAA sample coordinates in the pixel.
system_constants_used_ |= 1ull << kSysConst_SampleCountLog2_Index;
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_AND) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(9));
shader_code_.push_back(
EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b0011, 1));
shader_code_.push_back(atoc_temp);
shader_code_.push_back(
EncodeVectorSwizzledOperand(D3D10_SB_OPERAND_TYPE_TEMP, kSwizzleXYZW, 1));
shader_code_.push_back(atoc_temp);
shader_code_.push_back(EncodeVectorSwizzledOperand(
D3D10_SB_OPERAND_TYPE_CONSTANT_BUFFER,
kSysConst_SampleCountLog2_Comp |
((kSysConst_SampleCountLog2_Comp + 1) << 2),
3));
shader_code_.push_back(cbuffer_index_system_constants_);
shader_code_.push_back(uint32_t(CbufferRegister::kSystemConstants));
shader_code_.push_back(kSysConst_SampleCountLog2_Vec);
++stat_.instruction_count;
++stat_.uint_instruction_count;
// Get the sample index - 0 and 2 being the top ones, 1 and 3 being the bottom
// ones (because at 2x SSAA, 1 is the bottom).
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_UMAD) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(9));
shader_code_.push_back(
EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b0001, 1));
shader_code_.push_back(atoc_temp);
shader_code_.push_back(
EncodeVectorSelectOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0, 1));
shader_code_.push_back(atoc_temp);
shader_code_.push_back(
EncodeScalarOperand(D3D10_SB_OPERAND_TYPE_IMMEDIATE32, 0));
shader_code_.push_back(2);
shader_code_.push_back(
EncodeVectorSelectOperand(D3D10_SB_OPERAND_TYPE_TEMP, 1, 1));
shader_code_.push_back(atoc_temp);
++stat_.instruction_count;
++stat_.uint_instruction_count;
// Create a mask to choose the specific threshold to compare to.
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_IEQ) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(10));
shader_code_.push_back(
EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b1111, 1));
shader_code_.push_back(atoc_temp);
shader_code_.push_back(
EncodeVectorReplicatedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0, 1));
shader_code_.push_back(atoc_temp);
shader_code_.push_back(EncodeVectorSwizzledOperand(
D3D10_SB_OPERAND_TYPE_IMMEDIATE32, kSwizzleXYZW, 0));
shader_code_.push_back(0);
shader_code_.push_back(1);
shader_code_.push_back(2);
shader_code_.push_back(3);
++stat_.instruction_count;
++stat_.int_instruction_count;
uint32_t atoc_thresholds_temp = PushSystemTemp();
// Choose the thresholds based on the sample count - first between 2 and 1
// samples.
system_constants_used_ |= 1ull << kSysConst_SampleCountLog2_Index;
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_MOVC) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(17));
shader_code_.push_back(
EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b1111, 1));
shader_code_.push_back(atoc_thresholds_temp);
shader_code_.push_back(
EncodeVectorReplicatedOperand(D3D10_SB_OPERAND_TYPE_CONSTANT_BUFFER,
kSysConst_SampleCountLog2_Comp + 1, 3));
shader_code_.push_back(cbuffer_index_system_constants_);
shader_code_.push_back(uint32_t(CbufferRegister::kSystemConstants));
shader_code_.push_back(kSysConst_SampleCountLog2_Vec);
shader_code_.push_back(EncodeVectorSwizzledOperand(
D3D10_SB_OPERAND_TYPE_IMMEDIATE32, kSwizzleXYZW, 0));
// 0.25
shader_code_.push_back(0x3E800000);
// 0.75
shader_code_.push_back(0x3F400000);
// NaN - comparison always fails
shader_code_.push_back(0x7FC00000);
shader_code_.push_back(0x7FC00000);
shader_code_.push_back(EncodeVectorSwizzledOperand(
D3D10_SB_OPERAND_TYPE_IMMEDIATE32, kSwizzleXYZW, 0));
// 0.5
shader_code_.push_back(0x3F000000);
shader_code_.push_back(0x7FC00000);
shader_code_.push_back(0x7FC00000);
shader_code_.push_back(0x7FC00000);
++stat_.instruction_count;
++stat_.movc_instruction_count;
// Choose the thresholds based on the sample count - between 4 or 1/2 samples.
system_constants_used_ |= 1ull << kSysConst_SampleCountLog2_Index;
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_MOVC) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(14));
shader_code_.push_back(
EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b1111, 1));
shader_code_.push_back(atoc_thresholds_temp);
shader_code_.push_back(
EncodeVectorReplicatedOperand(D3D10_SB_OPERAND_TYPE_CONSTANT_BUFFER,
kSysConst_SampleCountLog2_Comp, 3));
shader_code_.push_back(cbuffer_index_system_constants_);
shader_code_.push_back(uint32_t(CbufferRegister::kSystemConstants));
shader_code_.push_back(kSysConst_SampleCountLog2_Vec);
shader_code_.push_back(EncodeVectorSwizzledOperand(
D3D10_SB_OPERAND_TYPE_IMMEDIATE32, kSwizzleXYZW, 0));
// 0.625
shader_code_.push_back(0x3F200000);
// 0.125
shader_code_.push_back(0x3E000000);
// 0.375
shader_code_.push_back(0x3EC00000);
// 0.875
shader_code_.push_back(0x3F600000);
shader_code_.push_back(
EncodeVectorSwizzledOperand(D3D10_SB_OPERAND_TYPE_TEMP, kSwizzleXYZW, 1));
shader_code_.push_back(atoc_thresholds_temp);
++stat_.instruction_count;
++stat_.movc_instruction_count;
// Choose the threshold to compare the alpha to according to the current
// sample index - mask.
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_AND) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(7));
shader_code_.push_back(
EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b1111, 1));
shader_code_.push_back(atoc_temp);
shader_code_.push_back(
EncodeVectorSwizzledOperand(D3D10_SB_OPERAND_TYPE_TEMP, kSwizzleXYZW, 1));
shader_code_.push_back(atoc_thresholds_temp);
shader_code_.push_back(
EncodeVectorSwizzledOperand(D3D10_SB_OPERAND_TYPE_TEMP, kSwizzleXYZW, 1));
shader_code_.push_back(atoc_temp);
++stat_.instruction_count;
++stat_.uint_instruction_count;
// Release atoc_thresholds_temp.
PopSystemTemp();
// Choose the threshold to compare the alpha to according to the current
// sample index - select within pairs.
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_OR) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(7));
shader_code_.push_back(
EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b0011, 1));
shader_code_.push_back(atoc_temp);
shader_code_.push_back(
EncodeVectorSwizzledOperand(D3D10_SB_OPERAND_TYPE_TEMP, kSwizzleXYZW, 1));
shader_code_.push_back(atoc_temp);
shader_code_.push_back(
EncodeVectorSwizzledOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b01001110, 1));
shader_code_.push_back(atoc_temp);
++stat_.instruction_count;
++stat_.uint_instruction_count;
// Choose the threshold to compare the alpha to according to the current
// sample index - combine pairs.
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_OR) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(7));
shader_code_.push_back(
EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b0001, 1));
shader_code_.push_back(atoc_temp);
shader_code_.push_back(
EncodeVectorSelectOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0, 1));
shader_code_.push_back(atoc_temp);
shader_code_.push_back(
EncodeVectorSelectOperand(D3D10_SB_OPERAND_TYPE_TEMP, 1, 1));
shader_code_.push_back(atoc_temp);
++stat_.instruction_count;
++stat_.uint_instruction_count;
// Compare the alpha to the threshold.
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_GE) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(7));
shader_code_.push_back(
EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b0001, 1));
shader_code_.push_back(atoc_temp);
shader_code_.push_back(
EncodeVectorSelectOperand(D3D10_SB_OPERAND_TYPE_TEMP, 3, 1));
shader_code_.push_back(system_temps_color_);
shader_code_.push_back(
EncodeVectorSelectOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0, 1));
shader_code_.push_back(atoc_temp);
++stat_.instruction_count;
++stat_.float_instruction_count;
// Discard the SSAA sample if it's not covered.
shader_code_.push_back(
ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_DISCARD) |
ENCODE_D3D10_SB_INSTRUCTION_TEST_BOOLEAN(D3D10_SB_INSTRUCTION_TEST_ZERO) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(3));
shader_code_.push_back(
EncodeVectorSelectOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0, 1));
shader_code_.push_back(atoc_temp);
++stat_.instruction_count;
// Close the alpha to coverage check.
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_ENDIF) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(1));
++stat_.instruction_count;
// Release atoc_temp.
PopSystemTemp();
}
void DxbcShaderTranslator::CompletePixelShader_WriteToRTVs() {
// Check if this sample needs to be discarded by alpha to coverage.
CompletePixelShader_WriteToRTVs_AlphaToCoverage();
// Apply the exponent bias after alpha to coverage because it needs the
// unbiased alpha from the shader.
CompletePixelShader_ApplyColorExpBias();
// Convert to gamma space - this is incorrect, since it must be done after
@ -1139,11 +1398,11 @@ void DxbcShaderTranslator::CompletePixelShader_WriteToROV_GetCoverage(
shader_code_.push_back(kSysConst_SampleCountLog2_Vec);
shader_code_.push_back(EncodeVectorSwizzledOperand(
D3D10_SB_OPERAND_TYPE_IMMEDIATE32, kSwizzleXYZW, 0));
// 0.75
shader_code_.push_back(0x3F400000);
// 0.25
shader_code_.push_back(0x3E800000);
// NaN
// 0.75
shader_code_.push_back(0x3F400000);
// NaN - comparison always fails
shader_code_.push_back(0x7FC00000);
shader_code_.push_back(0x7FC00000);
shader_code_.push_back(EncodeVectorSwizzledOperand(