[D3D12] DXBC vfetch ld_raw part
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Triang3l
parent
a0aa55b1e8
commit
bed58a2282
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@ -1490,6 +1490,149 @@ void DxbcShaderTranslator::StoreResult(const InstructionResult& result,
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}
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}
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}
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}
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void DxbcShaderTranslator::ProcessVertexFetchInstruction(
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const ParsedVertexFetchInstruction& instr) {
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if (instr.operand_count < 2 ||
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instr.operands[1].storage_source !=
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InstructionStorageSource::kVertexFetchConstant) {
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assert_always();
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return;
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}
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// Get the mask for ld_raw and byte swapping.
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uint32_t load_dword_count;
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switch (instr.attributes.data_format) {
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case VertexFormat::k_8_8_8_8:
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case VertexFormat::k_2_10_10_10:
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case VertexFormat::k_10_11_11:
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case VertexFormat::k_11_11_10:
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case VertexFormat::k_16_16:
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case VertexFormat::k_16_16_FLOAT:
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case VertexFormat::k_32:
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case VertexFormat::k_32_FLOAT:
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load_dword_count = 1;
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break;
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case VertexFormat::k_16_16_16_16:
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case VertexFormat::k_16_16_16_16_FLOAT:
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case VertexFormat::k_32_32:
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case VertexFormat::k_32_32_FLOAT:
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load_dword_count = 2;
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break;
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case VertexFormat::k_32_32_32_FLOAT:
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load_dword_count = 3;
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break;
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case VertexFormat::k_32_32_32_32:
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case VertexFormat::k_32_32_32_32_FLOAT:
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load_dword_count = 4;
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break;
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default:
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assert_unhandled_case(instr.attributes.data_format);
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return;
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}
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// Get the resulting component count.
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uint32_t component_count =
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GetVertexFormatComponentCount(instr.attributes.data_format);
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if (component_count == 0) {
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assert_always();
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return;
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}
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// TODO(Triang3l): Predicate.
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// Convert the index to an integer.
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DxbcSourceOperand index_operand;
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LoadDxbcSourceOperand(instr.operands[0], index_operand);
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shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_FTOI) |
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ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(
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3 + DxbcSourceOperandLength(index_operand)));
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shader_code_.push_back(
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EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b0001, 1));
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shader_code_.push_back(system_temp_pv_);
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UseDxbcSourceOperand(index_operand, kSwizzleXYZW, 0);
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++stat_.instruction_count;
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++stat_.conversion_instruction_count;
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// TODO(Triang3l): Index clamping maybe.
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uint32_t vfetch_index = instr.operands[1].storage_index;
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// Get the memory address (taken from the fetch constant - the low 2 bits of
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// it are removed because vertices and raw buffer operations are 4-aligned and
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// fetch type - 3 for vertices - is stored there). Vertex fetch is specified
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// by 2 dwords in fetch constants, but in our case they are 4-component, so
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// one vector of fetch constants contains two vfetches.
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// TODO(Triang3l): Clamp to buffer size maybe (may be difficult if the buffer
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// is smaller than 16).
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// http://xboxforums.create.msdn.com/forums/p/7537/39919.aspx#39919
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rdef_constants_used_ |= 1ull << uint32_t(RdefConstantIndex::kFetchConstants);
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shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_AND) |
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ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(9));
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shader_code_.push_back(
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EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b0010, 1));
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shader_code_.push_back(system_temp_pv_);
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shader_code_.push_back(EncodeVectorSelectOperand(
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D3D10_SB_OPERAND_TYPE_CONSTANT_BUFFER, (vfetch_index & 1) * 2, 3));
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shader_code_.push_back(uint32_t(RdefConstantBufferIndex::kFetchConstants));
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shader_code_.push_back(uint32_t(CbufferRegister::kFetchConstants));
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shader_code_.push_back(vfetch_index >> 1);
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shader_code_.push_back(
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EncodeScalarOperand(D3D10_SB_OPERAND_TYPE_IMMEDIATE32, 0));
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shader_code_.push_back(0x1FFFFFFC);
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++stat_.instruction_count;
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++stat_.uint_instruction_count;
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// Calculate the address of the vertex.
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shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_IMAD) |
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ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(9));
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shader_code_.push_back(
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EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b0001, 1));
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shader_code_.push_back(system_temp_pv_);
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shader_code_.push_back(
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EncodeVectorSelectOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0, 1));
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shader_code_.push_back(system_temp_pv_);
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shader_code_.push_back(
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EncodeScalarOperand(D3D10_SB_OPERAND_TYPE_IMMEDIATE32, 0));
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shader_code_.push_back(instr.attributes.stride * 4);
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shader_code_.push_back(
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EncodeVectorSelectOperand(D3D10_SB_OPERAND_TYPE_TEMP, 1, 1));
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shader_code_.push_back(system_temp_pv_);
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++stat_.instruction_count;
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++stat_.int_instruction_count;
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// Add the element offset.
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if (instr.attributes.offset != 0) {
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shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D10_SB_OPCODE_IADD) |
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ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(7));
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shader_code_.push_back(
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EncodeVectorMaskedOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0b0001, 1));
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shader_code_.push_back(system_temp_pv_);
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shader_code_.push_back(
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EncodeVectorSelectOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0, 1));
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shader_code_.push_back(system_temp_pv_);
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shader_code_.push_back(
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EncodeScalarOperand(D3D10_SB_OPERAND_TYPE_IMMEDIATE32, 0));
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shader_code_.push_back(instr.attributes.offset * 4);
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++stat_.instruction_count;
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++stat_.int_instruction_count;
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}
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// Load the vertex data from the shared memory at T0, register t0.
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shader_code_.push_back(ENCODE_D3D10_SB_OPCODE_TYPE(D3D11_SB_OPCODE_LD_RAW) |
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ENCODE_D3D10_SB_TOKENIZED_INSTRUCTION_LENGTH(8));
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shader_code_.push_back(EncodeVectorMaskedOperand(
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D3D10_SB_OPERAND_TYPE_TEMP, (1 << load_dword_count) - 1, 1));
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shader_code_.push_back(system_temp_pv_);
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shader_code_.push_back(
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EncodeVectorSelectOperand(D3D10_SB_OPERAND_TYPE_TEMP, 0, 1));
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shader_code_.push_back(system_temp_pv_);
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shader_code_.push_back(EncodeVectorSwizzledOperand(
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D3D10_SB_OPERAND_TYPE_RESOURCE,
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kSwizzleXYZW & ((1 << (load_dword_count * 2)) - 1), 2));
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shader_code_.push_back(0);
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shader_code_.push_back(0);
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++stat_.instruction_count;
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++stat_.texture_load_instructions;
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}
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void DxbcShaderTranslator::ProcessVectorAluInstruction(
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void DxbcShaderTranslator::ProcessVectorAluInstruction(
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const ParsedAluInstruction& instr) {
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const ParsedAluInstruction& instr) {
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// TODO(Triang3l): Predicate.
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// TODO(Triang3l): Predicate.
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@ -66,6 +66,8 @@ class DxbcShaderTranslator : public ShaderTranslator {
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std::vector<uint8_t> CompleteTranslation() override;
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std::vector<uint8_t> CompleteTranslation() override;
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void ProcessVertexFetchInstruction(
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const ParsedVertexFetchInstruction& instr) override;
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void ProcessAluInstruction(const ParsedAluInstruction& instr) override;
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void ProcessAluInstruction(const ParsedAluInstruction& instr) override;
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private:
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private:
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