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| author | bunnei <bunneidev@gmail.com> | 2015-01-13 03:55:35 +0100 |
|---|---|---|
| committer | bunnei <bunneidev@gmail.com> | 2015-01-13 03:55:35 +0100 |
| commit | 99c0716d4d5da0d4cfa41877303813954ecf85c9 (patch) | |
| tree | 90be9ad6845cc5d00fc04090a3a2a933d0c62271 | |
| parent | Merge pull request #470 from archshift/master (diff) | |
| parent | Pica/VertexShader: Implement the MAD instruction. (diff) | |
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Diffstat (limited to '')
| -rw-r--r-- | src/video_core/vertex_shader.cpp | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/src/video_core/vertex_shader.cpp b/src/video_core/vertex_shader.cpp index 0c4827507..48977380e 100644 --- a/src/video_core/vertex_shader.cpp +++ b/src/video_core/vertex_shader.cpp @@ -348,6 +348,75 @@ static void ProcessShaderCode(VertexShaderState& state) { break; } + + case Instruction::OpCodeType::MultiplyAdd: + { + if (instr.opcode.EffectiveOpCode() == Instruction::OpCode::MAD) { + const SwizzlePattern& swizzle = *(SwizzlePattern*)&swizzle_data[instr.mad.operand_desc_id]; + + const float24* src1_ = LookupSourceRegister(instr.mad.src1); + const float24* src2_ = LookupSourceRegister(instr.mad.src2); + const float24* src3_ = LookupSourceRegister(instr.mad.src3); + + const bool negate_src1 = ((bool)swizzle.negate_src1 != false); + const bool negate_src2 = ((bool)swizzle.negate_src2 != false); + const bool negate_src3 = ((bool)swizzle.negate_src3 != false); + + float24 src1[4] = { + src1_[(int)swizzle.GetSelectorSrc1(0)], + src1_[(int)swizzle.GetSelectorSrc1(1)], + src1_[(int)swizzle.GetSelectorSrc1(2)], + src1_[(int)swizzle.GetSelectorSrc1(3)], + }; + if (negate_src1) { + src1[0] = src1[0] * float24::FromFloat32(-1); + src1[1] = src1[1] * float24::FromFloat32(-1); + src1[2] = src1[2] * float24::FromFloat32(-1); + src1[3] = src1[3] * float24::FromFloat32(-1); + } + float24 src2[4] = { + src2_[(int)swizzle.GetSelectorSrc2(0)], + src2_[(int)swizzle.GetSelectorSrc2(1)], + src2_[(int)swizzle.GetSelectorSrc2(2)], + src2_[(int)swizzle.GetSelectorSrc2(3)], + }; + if (negate_src2) { + src2[0] = src2[0] * float24::FromFloat32(-1); + src2[1] = src2[1] * float24::FromFloat32(-1); + src2[2] = src2[2] * float24::FromFloat32(-1); + src2[3] = src2[3] * float24::FromFloat32(-1); + } + float24 src3[4] = { + src3_[(int)swizzle.GetSelectorSrc3(0)], + src3_[(int)swizzle.GetSelectorSrc3(1)], + src3_[(int)swizzle.GetSelectorSrc3(2)], + src3_[(int)swizzle.GetSelectorSrc3(3)], + }; + if (negate_src3) { + src3[0] = src3[0] * float24::FromFloat32(-1); + src3[1] = src3[1] * float24::FromFloat32(-1); + src3[2] = src3[2] * float24::FromFloat32(-1); + src3[3] = src3[3] * float24::FromFloat32(-1); + } + + float24* dest = (instr.mad.dest < 0x08) ? state.output_register_table[4*instr.mad.dest.GetIndex()] + : (instr.mad.dest < 0x10) ? dummy_vec4_float24 + : (instr.mad.dest < 0x20) ? &state.temporary_registers[instr.mad.dest.GetIndex()][0] + : dummy_vec4_float24; + + for (int i = 0; i < 4; ++i) { + if (!swizzle.DestComponentEnabled(i)) + continue; + + dest[i] = src1[i] * src2[i] + src3[i]; + } + } else { + LOG_ERROR(HW_GPU, "Unhandled multiply-add instruction: 0x%02x (%s): 0x%08x", + (int)instr.opcode.Value(), instr.opcode.GetInfo().name, instr.hex); + } + break; + } + default: { static auto evaluate_condition = [](const VertexShaderState& state, bool refx, bool refy, Instruction::FlowControlType flow_control) { |