mirror of https://github.com/AxioDL/metaforce.git
382 lines
15 KiB
C++
382 lines
15 KiB
C++
#include "hecl/Backend/HLSL.hpp"
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#include "hecl/Runtime.hpp"
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#include <athena/MemoryReader.hpp>
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#include <athena/MemoryWriter.hpp>
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#include <boo/graphicsdev/D3D.hpp>
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static logvisor::Module Log("hecl::Backend::HLSL");
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namespace hecl::Backend
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{
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std::string HLSL::EmitTexGenSource2(TexGenSrc src, int uvIdx) const
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{
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switch (src)
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{
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case TexGenSrc::Position:
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return "objPos.xy\n";
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case TexGenSrc::Normal:
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return "objNorm.xy\n";
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case TexGenSrc::UV:
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return hecl::Format("v.uvIn[%u]", uvIdx);
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default: break;
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}
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return std::string();
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}
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std::string HLSL::EmitTexGenSource4(TexGenSrc src, int uvIdx) const
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{
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switch (src)
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{
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case TexGenSrc::Position:
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return "float4(objPos.xyz, 1.0)\n";
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case TexGenSrc::Normal:
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return "float4(objNorm.xyz, 1.0)\n";
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case TexGenSrc::UV:
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return hecl::Format("float4(v.uvIn[%u], 0.0, 1.0)", uvIdx);
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default: break;
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}
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return std::string();
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}
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std::string HLSL::GenerateVertInStruct(unsigned col, unsigned uv, unsigned w) const
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{
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std::string retval =
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"struct VertData\n"
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"{\n"
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" float3 posIn : POSITION;\n"
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" float3 normIn : NORMAL;\n";
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if (col)
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retval += hecl::Format(" float4 colIn[%u] : COLOR;\n", col);
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if (uv)
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retval += hecl::Format(" float2 uvIn[%u] : UV;\n", uv);
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if (w)
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retval += hecl::Format(" float4 weightIn[%u] : WEIGHT;\n", w);
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return retval + "};\n";
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}
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std::string HLSL::GenerateVertToFragStruct(size_t extTexCount, bool reflectionCoords) const
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{
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std::string retval =
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"struct VertToFrag\n"
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"{\n"
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" float4 mvpPos : SV_Position;\n"
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" float4 mvPos : POSITION;\n"
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" float4 mvNorm : NORMAL;\n";
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if (m_tcgs.size())
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retval += hecl::Format(" float2 tcgs[%u] : UV;\n", unsigned(m_tcgs.size()));
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if (extTexCount)
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retval += hecl::Format(" float2 extTcgs[%u] : EXTUV;\n", unsigned(extTexCount));
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if (reflectionCoords)
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retval += " float2 reflectTcgs[2] : REFLECTUV;\n"
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" float reflectAlpha : REFLECTALPHA;\n";
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return retval + "};\n";
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}
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std::string HLSL::GenerateVertUniformStruct(unsigned skinSlots, bool reflectionCoords) const
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{
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std::string retval;
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if (skinSlots == 0)
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{
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retval = "cbuffer HECLVertUniform : register(b0)\n"
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"{\n"
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" float4x4 mv;\n"
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" float4x4 mvInv;\n"
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" float4x4 proj;\n"
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"};\n";
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}
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else
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{
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retval = hecl::Format("cbuffer HECLVertUniform : register(b0)\n"
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"{\n"
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" float4x4 objs[%u];\n"
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" float4x4 objsInv[%u];\n"
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" float4x4 mv;\n"
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" float4x4 mvInv;\n"
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" float4x4 proj;\n"
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"};\n",
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skinSlots, skinSlots);
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}
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retval += "struct TCGMtx\n"
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"{\n"
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" float4x4 mtx;\n"
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" float4x4 postMtx;\n"
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"};\n"
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"cbuffer HECLTCGMatrix : register(b1)\n"
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"{\n"
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" TCGMtx texMtxs[8];\n"
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"};\n";
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if (reflectionCoords)
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retval += "cbuffer HECLReflectMtx : register(b3)\n"
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"{\n"
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" float4x4 indMtx;\n"
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" float4x4 reflectMtx;\n"
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" float reflectAlpha;\n"
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"};\n"
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"\n";
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return retval;
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}
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std::string HLSL::GenerateAlphaTest() const
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{
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return " if (colorOut.a < 0.01)\n"
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" {\n"
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" discard;\n"
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" }\n";
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}
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std::string HLSL::GenerateReflectionExpr(ReflectionType type) const
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{
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switch (type)
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{
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case ReflectionType::None:
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default:
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return "float3(0.0, 0.0, 0.0)";
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case ReflectionType::Simple:
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return "reflectionTex.Sample(reflectSamp, vtf.reflectTcgs[1]).rgb * vtf.reflectAlpha";
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case ReflectionType::Indirect:
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return "reflectionTex.Sample(reflectSamp, (reflectionIndTex.Sample(samp, vtf.reflectTcgs[0]).rg - "
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"float2(0.5, 0.5)) * float2(0.5, 0.5) + vtf.reflectTcgs[1]).rgb * vtf.reflectAlpha";
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}
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}
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void HLSL::reset(const IR& ir, Diagnostics& diag)
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{
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/* Common programmable interpretation */
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ProgrammableCommon::reset(ir, diag, "HLSL");
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}
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std::string HLSL::makeVert(unsigned col, unsigned uv, unsigned w,
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unsigned s, size_t extTexCount,
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const TextureInfo* extTexs, ReflectionType reflectionType) const
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{
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std::string retval =
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GenerateVertInStruct(col, uv, w) + "\n" +
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GenerateVertToFragStruct(extTexCount, reflectionType != ReflectionType::None) + "\n" +
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GenerateVertUniformStruct(s, reflectionType != ReflectionType::None) + "\n" +
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"VertToFrag main(in VertData v)\n"
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"{\n"
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" VertToFrag vtf;\n";
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if (s)
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{
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/* skinned */
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retval += " float4 objPos = float4(0.0,0.0,0.0,0.0);\n"
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" float4 objNorm = float4(0.0,0.0,0.0,0.0);\n";
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for (size_t i=0 ; i<s ; ++i)
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retval += hecl::Format(" objPos += mul(mv[%" PRISize "], float4(v.posIn, 1.0)) * v.weightIn[%" PRISize "][%" PRISize "];\n"
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" objNorm += mul(mvInv[%" PRISize "], float4(v.normIn, 1.0)) * v.weightIn[%" PRISize "][%" PRISize "];\n",
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i, i/4, i%4, i, i/4, i%4);
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retval += " objPos[3] = 1.0;\n"
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" objNorm = float4(normalize(objNorm.xyz), 0.0);\n"
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" vtf.mvPos = mul(mv, objPos);\n"
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" vtf.mvNorm = float4(normalize(mul(mvInv, objNorm).xyz), 0.0);\n"
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" vtf.mvpPos = mul(proj, vtf.mvPos);\n";
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}
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else
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{
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/* non-skinned */
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retval += " float4 objPos = float4(posIn, 1.0);\n"
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" float4 objNorm = float4(normIn, 0.0);\n"
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" vtf.mvPos = mul(mv, objPos);\n"
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" vtf.mvNorm = mul(mvInv, objNorm);\n"
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" gl_Position = mul(proj, vtf.mvPos);\n";
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}
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retval += " float4 tmpProj;\n";
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int tcgIdx = 0;
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for (const TexCoordGen& tcg : m_tcgs)
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{
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if (tcg.m_mtx < 0)
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retval += hecl::Format(" vtf.tcgs[%u] = %s;\n", tcgIdx,
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EmitTexGenSource2(tcg.m_src, tcg.m_uvIdx).c_str());
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else
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retval += hecl::Format(" tmpProj = mul(texMtxs[%u].postMtx, float4(%s(mul(texMtxs[%u].mtx, %s).xyz), 1.0));\n"
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" vtf.tcgs[%u] = (tmpProj / tmpProj.w).xy;\n", tcg.m_mtx,
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tcg.m_norm ? "normalize" : "", tcg.m_mtx,
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EmitTexGenSource4(tcg.m_src, tcg.m_uvIdx).c_str(), tcgIdx);
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++tcgIdx;
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}
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for (int i=0 ; i<extTexCount ; ++i)
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{
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const TextureInfo& extTex = extTexs[i];
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if (extTex.mtxIdx < 0)
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retval += hecl::Format(" vtf.extTcgs[%u] = %s;\n", i,
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EmitTexGenSource2(extTex.src, extTex.uvIdx).c_str());
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else
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retval += hecl::Format(" tmpProj = mul(texMtxs[%u].postMtx, float4(%s(mul(texMtxs[%u].mtx, %s).xyz), 1.0));\n"
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" vtf.extTcgs[%u] = (tmpProj / tmpProj.w).xy;\n",
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extTex.mtxIdx, extTex.normalize ? "normalize" : "", extTex.mtxIdx,
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EmitTexGenSource4(extTex.src, extTex.uvIdx).c_str(), i);
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}
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if (reflectionType != ReflectionType::None)
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retval += " vtf.reflectTcgs[0] = normalize(mul(indMtx, float4(v.posIn, 1.0)).xz) * float2(0.5, 0.5) + float2(0.5, 0.5);\n"
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" vtf.reflectTcgs[1] = mul(reflectMtx, float4(v.posIn, 1.0)).xy;\n"
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" vtf.reflectAlpha = reflectAlpha;\n";
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return retval + " return vtf;\n"
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"}\n";
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}
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std::string HLSL::makeFrag(size_t blockCount, const char** blockNames,
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bool alphaTest, ReflectionType reflectionType,
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BlendFactor srcFactor, BlendFactor dstFactor,
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const Function& lighting) const
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{
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std::string lightingSrc;
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if (!lighting.m_source.empty())
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lightingSrc = lighting.m_source;
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else
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lightingSrc = "static const float4 colorReg0 = float4(1.0, 1.0, 1.0, 1.0);\n"
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"static const float4 colorReg1 = float4(1.0, 1.0, 1.0, 1.0);\n"
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"static const float4 colorReg2 = float4(1.0, 1.0, 1.0, 1.0);\n"
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"static const float4 mulColor = float4(1.0, 1.0, 1.0, 1.0);\n";
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std::string texMapDecl;
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if (m_texMapEnd)
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texMapDecl = hecl::Format("Texture2D texs[%u] : register(t0);\n", m_texMapEnd);
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if (reflectionType == ReflectionType::Indirect)
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texMapDecl += hecl::Format("Texture2D reflectionIndTex : register(t%u);\n"
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"Texture2D reflectionTex : register(t%u);\n",
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m_texMapEnd, m_texMapEnd+1);
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else if (reflectionType == ReflectionType::Simple)
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texMapDecl += hecl::Format("Texture2D reflectionTex : register(t%u);\n",
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m_texMapEnd);
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std::string retval =
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std::string("#define BLEND_SRC_") + BlendFactorToDefine(srcFactor, m_blendSrc) + "\n" +
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"#define BLEND_DST_" + BlendFactorToDefine(dstFactor, m_blendDst) + "\n" +
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"SamplerState samp : register(s0);\n"
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"SamplerState clampSamp : register(s1);\n"
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"SamplerState reflectSamp : register(s2);\n" +
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GenerateVertToFragStruct(0, reflectionType != ReflectionType::None) +
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texMapDecl + "\n" +
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lightingSrc + "\n" +
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(!alphaTest ? "\n[earlydepthstencil]\n" : "\n") +
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"float4 main(in VertToFrag vtf) : SV_Target0\n{\n";
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if (m_lighting)
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{
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if (!lighting.m_entry.empty())
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retval += hecl::Format(" float4 lighting = %s(vtf.mvPos.xyz, normalize(vtf.mvNorm.xyz), vtf);\n",
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lighting.m_entry.data());
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else
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retval += " float4 lighting = float4(1.0,1.0,1.0,1.0);\n";
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}
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unsigned sampIdx = 0;
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for (const TexSampling& sampling : m_texSamplings)
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retval += hecl::Format(" float4 sampling%u = texs[%u].Sample(samp, vtf.tcgs[%u]);\n",
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sampIdx++, sampling.mapIdx, sampling.tcgIdx);
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std::string reflectionExpr = GenerateReflectionExpr(reflectionType);
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retval += " float4 colorOut;\n";
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if (m_alphaExpr.size())
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retval += " colorOut = float4(" + m_colorExpr + " + " + reflectionExpr + ", " + m_alphaExpr + ") * mulColor;\n";
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else
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retval += " colorOut = float4(" + m_colorExpr + " + " + reflectionExpr + ", 1.0) * mulColor;\n";
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return retval + (alphaTest ? GenerateAlphaTest() : "") + " return colorOut;\n}\n";
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}
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std::string HLSL::makeFrag(size_t blockCount, const char** blockNames,
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bool alphaTest, ReflectionType reflectionType,
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BlendFactor srcFactor, BlendFactor dstFactor,
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const Function& lighting,
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const Function& post, size_t extTexCount,
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const TextureInfo* extTexs) const
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{
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std::string lightingSrc;
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if (!lighting.m_source.empty())
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lightingSrc = lighting.m_source;
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else
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lightingSrc = "static const float4 colorReg0 = float4(1.0, 1.0, 1.0, 1.0);\n"
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"static const float4 colorReg1 = float4(1.0, 1.0, 1.0, 1.0);\n"
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"static const float4 colorReg2 = float4(1.0, 1.0, 1.0, 1.0);\n"
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"static const float4 mulColor = float4(1.0, 1.0, 1.0, 1.0);\n";
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std::string postSrc;
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if (!post.m_source.empty())
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postSrc = post.m_source;
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std::string postEntry;
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if (!post.m_entry.empty())
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postEntry = post.m_entry;
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std::string texMapDecl;
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if (m_texMapEnd)
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texMapDecl = hecl::Format("Texture2D texs[%u] : register(t0);\n", m_texMapEnd);
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if (reflectionType == ReflectionType::Indirect)
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texMapDecl += hecl::Format("Texture2D reflectionIndTex : register(t%u);\n"
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"Texture2D reflectionTex : register(t%u);\n",
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m_texMapEnd, m_texMapEnd+1);
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else if (reflectionType == ReflectionType::Simple)
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texMapDecl += hecl::Format("Texture2D reflectionTex : register(t%u);\n",
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m_texMapEnd);
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uint32_t extTexBits = 0;
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for (int i=0 ; i<extTexCount ; ++i)
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{
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const TextureInfo& extTex = extTexs[i];
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if (!(extTexBits & (1 << extTex.mapIdx)))
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{
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texMapDecl += hecl::Format("Texture2D extTex%u : register(t%u);\n",
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extTex.mapIdx, extTex.mapIdx);
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extTexBits |= (1 << extTex.mapIdx);
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}
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}
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std::string retval =
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std::string("#define BLEND_SRC_") + BlendFactorToDefine(srcFactor, m_blendSrc) + "\n" +
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"#define BLEND_DST_" + BlendFactorToDefine(dstFactor, m_blendDst) + "\n" +
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"SamplerState samp : register(s0);\n"
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"SamplerState clampSamp : register(s1);\n"
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"SamplerState reflectSamp : register(s2);\n" +
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GenerateVertToFragStruct(extTexCount, reflectionType != ReflectionType::None) +
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texMapDecl + "\n" +
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lightingSrc + "\n" +
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postSrc +
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(!alphaTest ? "\n[earlydepthstencil]\n" : "\n") +
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"float4 main(in VertToFrag vtf) : SV_Target0\n{\n";
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if (m_lighting)
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{
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if (!lighting.m_entry.empty())
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retval += hecl::Format(" float4 lighting = %s(vtf.mvPos.xyz, normalize(vtf.mvNorm.xyz), vtf);\n",
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lighting.m_entry.data());
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else
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retval += " float4 lighting = float4(1.0,1.0,1.0,1.0);\n";
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}
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unsigned sampIdx = 0;
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for (const TexSampling& sampling : m_texSamplings)
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retval += hecl::Format(" float4 sampling%u = texs[%u].Sample(samp, vtf.tcgs[%u]);\n",
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sampIdx++, sampling.mapIdx, sampling.tcgIdx);
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std::string reflectionExpr = GenerateReflectionExpr(reflectionType);
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retval += " float4 colorOut;\n";
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if (m_alphaExpr.size())
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retval += " colorOut = " + postEntry + "(" + (postEntry.size() ? "vtf, " : "") + "float4(" + m_colorExpr + " + " + reflectionExpr + ", " + m_alphaExpr + ")) * mulColor;\n";
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else
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retval += " colorOut = " + postEntry + "(" + (postEntry.size() ? "vtf, " : "") + "float4(" + m_colorExpr + " + " + reflectionExpr + ", 1.0)) * mulColor;\n";
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return retval + (alphaTest ? GenerateAlphaTest() : "") + " return colorOut;\n}\n";
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}
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}
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