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[D3D12] ROV: Clamp values participating in blending

This commit is contained in:
Triang3l 2018-10-16 15:01:59 +03:00
parent 2d56c9ae30
commit 5f2c4500d6
2 changed files with 62 additions and 37 deletions
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93
src/xenia/gpu/dxbc_shader_translator.cc
View File

@ -2385,6 +2385,48 @@ void DxbcShaderTranslator::CompletePixelShader_WriteToROV_ExtractBlendScales(
++stat_.conversion_instruction_count;
}
void DxbcShaderTranslator::CompletePixelShader_WriteToROV_ClampColor(
uint32_t rt_index, uint32_t color_temp) {
uint32_t rt_pair_index = rt_index >> 1;
uint32_t rt_pair_swizzle = rt_index & 1 ? 0b11101010 : 0b01000000;
system_constants_used_ |= (1ull << kSysConst_EDRAMStoreMinRT01_Index)
<< rt_pair_index;
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_MAX) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(9));
shader_code_.push_back(
EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b1111, 1));
shader_code_.push_back(color_temp);
shader_code_.push_back(
EncodeVectorSwizzledOperand(D3D10_SB_OPERAND_TYPE_TEMP, kSwizzleXYZW, 1));
shader_code_.push_back(color_temp);
shader_code_.push_back(EncodeVectorSwizzledOperand(
D3D10_SB_OPERAND_TYPE_CONSTANT_BUFFER, rt_pair_swizzle, 3));
shader_code_.push_back(cbuffer_index_system_constants_);
shader_code_.push_back(uint32_t(CbufferRegister::kSystemConstants));
shader_code_.push_back(kSysConst_EDRAMStoreMinRT01_Vec + rt_pair_index);
++stat_.instruction_count;
++stat_.float_instruction_count;
system_constants_used_ |= (1ull << kSysConst_EDRAMStoreMaxRT01_Index)
<< rt_pair_index;
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_MIN) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(9));
shader_code_.push_back(
EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b1111, 1));
shader_code_.push_back(color_temp);
shader_code_.push_back(
EncodeVectorSwizzledOperand(D3D10_SB_OPERAND_TYPE_TEMP, kSwizzleXYZW, 1));
shader_code_.push_back(color_temp);
shader_code_.push_back(EncodeVectorSwizzledOperand(
D3D10_SB_OPERAND_TYPE_CONSTANT_BUFFER, rt_pair_swizzle, 3));
shader_code_.push_back(cbuffer_index_system_constants_);
shader_code_.push_back(uint32_t(CbufferRegister::kSystemConstants));
shader_code_.push_back(kSysConst_EDRAMStoreMaxRT01_Vec + rt_pair_index);
++stat_.instruction_count;
++stat_.float_instruction_count;
}
void DxbcShaderTranslator::CompletePixelShader_WriteToROV_Blend(
uint32_t rt_index, uint32_t src_color_and_output_temp,
uint32_t dest_color_temp) {
@ -2554,6 +2596,11 @@ void DxbcShaderTranslator::CompletePixelShader_WriteToROV_Blend(
++stat_.float_instruction_count;
}
// Clamp the factors.
// https://stackoverflow.com/questions/30153911/untangling-when-and-what-values-are-clamped-in-opengl-blending-on-different-rend
CompletePixelShader_WriteToROV_ClampColor(rt_index, src_factor_temp);
CompletePixelShader_WriteToROV_ClampColor(rt_index, dest_factor_temp);
// Apply the signs to the factors for addition/subtraction/inverse subtraction
// (for min/max, they are set to positive in the constant, so will be a nop).
CompletePixelShader_WriteToROV_ExtractBlendScales(
@ -2595,6 +2642,10 @@ void DxbcShaderTranslator::CompletePixelShader_WriteToROV_Blend(
// Release scale_temp, src_factor_temp and dest_factor_temp.
PopSystemTemp();
// Clamp the resulting color.
CompletePixelShader_WriteToROV_ClampColor(rt_index,
src_color_and_output_temp);
}
void DxbcShaderTranslator::CompletePixelShader_WriteToROV_StoreColor(
@ -2626,43 +2677,6 @@ void DxbcShaderTranslator::CompletePixelShader_WriteToROV_StoreColor(
++stat_.instruction_count;
++stat_.uint_instruction_count;
// Clamp to min/max - this will also remove NaN since min and max return the
// non-NaN value.
system_constants_used_ |= (1ull << kSysConst_EDRAMStoreMinRT01_Index)
<< rt_pair_index;
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_MAX) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(9));
shader_code_.push_back(
EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b1111, 1));
shader_code_.push_back(source_and_scratch_temp);
shader_code_.push_back(
EncodeVectorSwizzledOperand(D3D10_SB_OPERAND_TYPE_TEMP, kSwizzleXYZW, 1));
shader_code_.push_back(source_and_scratch_temp);
shader_code_.push_back(EncodeVectorSwizzledOperand(
D3D10_SB_OPERAND_TYPE_CONSTANT_BUFFER, rt_pair_swizzle, 3));
shader_code_.push_back(cbuffer_index_system_constants_);
shader_code_.push_back(uint32_t(CbufferRegister::kSystemConstants));
shader_code_.push_back(kSysConst_EDRAMStoreMinRT01_Vec + rt_pair_index);
++stat_.instruction_count;
++stat_.float_instruction_count;
system_constants_used_ |= (1ull << kSysConst_EDRAMStoreMaxRT01_Index)
<< rt_pair_index;
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_MIN) |
ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(9));
shader_code_.push_back(
EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b1111, 1));
shader_code_.push_back(source_and_scratch_temp);
shader_code_.push_back(
EncodeVectorSwizzledOperand(D3D10_SB_OPERAND_TYPE_TEMP, kSwizzleXYZW, 1));
shader_code_.push_back(source_and_scratch_temp);
shader_code_.push_back(EncodeVectorSwizzledOperand(
D3D10_SB_OPERAND_TYPE_CONSTANT_BUFFER, rt_pair_swizzle, 3));
shader_code_.push_back(cbuffer_index_system_constants_);
shader_code_.push_back(uint32_t(CbufferRegister::kSystemConstants));
shader_code_.push_back(kSysConst_EDRAMStoreMaxRT01_Vec + rt_pair_index);
++stat_.instruction_count;
++stat_.float_instruction_count;
// Scale by the fixed-point conversion factor.
system_constants_used_ |= (1ull << kSysConst_EDRAMStoreScaleRT01_Index)
<< rt_pair_index;
@ -3860,6 +3874,11 @@ void DxbcShaderTranslator::CompletePixelShader_WriteToROV() {
++stat_.instruction_count;
++stat_.dynamic_flow_control_count;
// Clamp the color (the source value) before blending.
// https://stackoverflow.com/questions/30153911/untangling-when-and-what-values-are-clamped-in-opengl-blending-on-different-rend
CompletePixelShader_WriteToROV_ClampColor(rt_index,
system_temp_color_[rt_index]);
// Load the previous value in the render target to blend and to apply the
// write mask.
shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_IF) |

6
src/xenia/gpu/dxbc_shader_translator.h
View File

@ -648,6 +648,10 @@ class DxbcShaderTranslator : public ShaderTranslator {
uint32_t edram_dword_offset_low_temp,
uint32_t edram_dword_offset_high_temp, uint32_t rt_index,
uint32_t target_temp);
// Clamps the color to the range representable by the render target's format.
// Will also remove NaN since min and max return the non-NaN value.
void CompletePixelShader_WriteToROV_ClampColor(uint32_t rt_index,
uint32_t color_temp);
void CompletePixelShader_WriteToROV_Blend(uint32_t rt_index,
uint32_t src_color_and_output_temp,
uint32_t dest_color_temp);
@ -662,6 +666,8 @@ class DxbcShaderTranslator : public ShaderTranslator {
uint32_t rt_index, uint32_t constant_swizzle, bool is_signed,
uint32_t shift_x, uint32_t shift_y, uint32_t shift_z, uint32_t shift_w,
uint32_t target_temp, uint32_t write_mask = 0b1111);
// Assumes the incoming color is already clamped to the range representable by
// the RT format.
void CompletePixelShader_WriteToROV_StoreColor(
uint32_t edram_dword_offset_low_temp,
uint32_t edram_dword_offset_high_temp, uint32_t rt_index,