MSL Shader Generation

Signed-off-by: Isaac Marovitz <isaacryu@icloud.com>

XenosRecomp/CMakeLists.txt

@@ -4,6 +4,10 @@ if (WIN32)
     option(XENOS_RECOMP_DXIL "Generate DXIL shader cache" ON)
 endif()
 
+if (APPLE)
+    option(XENOS_RECOMP_AIR "Generate Metal AIR shader cache" ON)
+endif()
+
 set(SMOLV_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../thirdparty/smol-v/source")
 
 add_executable(XenosRecomp 
@@ -51,3 +55,7 @@ if (XENOS_RECOMP_DXIL)
     target_compile_definitions(XenosRecomp PRIVATE XENOS_RECOMP_DXIL)
     target_link_libraries(XenosRecomp PRIVATE Microsoft::DXIL)
 endif()
+
+if (XENOS_RECOMP_AIR)
+    target_compile_definitions(XenosRecomp PRIVATE XENOS_RECOMP_AIR)
+endif()

XenosRecomp/dxc_compiler.cpp

@@ -34,6 +34,11 @@ IDxcBlob* DxcCompiler::compile(const std::string& shaderSource, bool compilePixe
             target = L"-T vs_6_0";
     }
 
+    if (!compileLibrary)
+    {
+        args[argCount++] = L"-E shaderMain";
+    }
+
     args[argCount++] = target;
     args[argCount++] = L"-HV 2021";
     args[argCount++] = L"-all-resources-bound";

XenosRecomp/shader_common.h

@@ -10,10 +10,12 @@
     #define SPEC_CONSTANT_REVERSE_Z         (1 << 4)
 #endif
 
-#if !defined(__cplusplus) || defined(__INTELLISENSE__)
+#if defined(__air__) || !defined(__cplusplus) || defined(__INTELLISENSE__)
 
+#ifndef __air__
 #define FLT_MIN asfloat(0xff7fffff)
 #define FLT_MAX asfloat(0x7f7fffff)
+#endif
 
 #ifdef __spirv__
 
@@ -34,6 +36,30 @@ struct PushConstants
 
 #define g_SpecConstants() g_SpecConstants
 
+#elif __air__
+
+#include <metal_stdlib>
+
+using namespace metal;
+
+constant uint G_SPEC_CONSTANT [[function_constant(0)]];
+
+uint g_SpecConstants()
+{
+    return G_SPEC_CONSTANT;
+}
+
+struct PushConstants
+{
+    ulong VertexShaderConstants;
+    ulong PixelShaderConstants;
+    ulong SharedConstants;
+};
+
+#define g_Booleans (*(reinterpret_cast<device uint*>(g_PushConstants.SharedConstants + 256)))
+#define g_SwappedTexcoords (*(reinterpret_cast<device uint*>(g_PushConstants.SharedConstants + 260)))
+#define g_AlphaThreshold (*(reinterpret_cast<device float*>(g_PushConstants.SharedConstants + 264)))
+
 #else
 
 #define DEFINE_SHARED_CONSTANTS() \
@@ -45,6 +71,56 @@ uint g_SpecConstants();
 
 #endif
 
+#ifdef __air__
+
+struct Texture2DDescriptorHeap
+{
+    array<texture2d<float>, 1> g [[id(0)]];
+};
+
+struct Texture3DDescriptorHeap
+{
+    array<texture3d<float>, 1> g [[id(0)]];
+};
+
+struct TextureCubeDescriptorHeap
+{
+    array<texturecube<float>, 1> g [[id(0)]];
+};
+
+struct SamplerDescriptorHeap
+{
+    array<sampler, 1> g [[id(0)]];
+};
+
+uint2 getTexture2DDimensions(texture2d<float> texture)
+{
+    return uint2(texture.get_width(), texture.get_height());
+}
+
+float4 tfetch2D(constant Texture2DDescriptorHeap& textureHeap,
+                constant SamplerDescriptorHeap& samplerHeap,
+                uint resourceDescriptorIndex,
+                uint samplerDescriptorIndex,
+                float2 texCoord, float2 offset)
+{
+    texture2d<float> texture = textureHeap.g[resourceDescriptorIndex];
+    sampler sampler = samplerHeap.g[samplerDescriptorIndex];
+    return texture.sample(sampler, texCoord + offset / (float2)getTexture2DDimensions(texture));
+}
+
+float2 getWeights2D(constant Texture2DDescriptorHeap& textureHeap,
+                    constant SamplerDescriptorHeap& samplerHeap,
+                    uint resourceDescriptorIndex,
+                    uint samplerDescriptorIndex,
+                    float2 texCoord, float2 offset)
+{
+    texture2d<float> texture = textureHeap.g[resourceDescriptorIndex];
+    return select(fract(texCoord * (float2)getTexture2DDimensions(texture) + offset - 0.5), 0.0, isnan(texCoord));
+}
+
+#else
+
 Texture2D<float4> g_Texture2DDescriptorHeap[] : register(t0, space0);
 Texture3D<float4> g_Texture3DDescriptorHeap[] : register(t0, space1);
 TextureCube<float4> g_TextureCubeDescriptorHeap[] : register(t0, space2);
@@ -69,6 +145,46 @@ float2 getWeights2D(uint resourceDescriptorIndex, uint samplerDescriptorIndex, f
     return select(isnan(texCoord), 0.0, frac(texCoord * getTexture2DDimensions(texture) + offset - 0.5));
 }
 
+#endif
+
+#ifdef __air__
+#define selectWrapper(a, b, c) select(c, b, a)
+#else
+#define selectWrapper(a, b, c) select(a, b, c)
+#endif
+
+#ifdef __air__
+#define frac(X) fract(X)
+
+template<typename T>
+void clip(T a)
+{
+    if (a < 0.0) {
+        discard_fragment();
+    }
+}
+
+template<typename T>
+float rcp(T a)
+{
+    return 1.0 / a;
+}
+
+template<typename T>
+float4x4 mul(T a, T b)
+{
+    return a * b;
+}
+#endif
+
+#ifdef __air__
+#define UNROLL
+#define BRANCH
+#else
+#define UNROLL [unroll]
+#define BRANCH [branch]
+#endif
+
 float w0(float a)
 {
     return (1.0f / 6.0f) * (a * (a * (-a + 3.0f) - 3.0f) + 1.0f);
@@ -109,6 +225,74 @@ float h1(float a)
     return 1.0f + w3(a) / (w2(a) + w3(a)) + 0.5f;
 }
 
+struct CubeMapData
+{
+    float3 cubeMapDirections[2];
+    uint cubeMapIndex;
+};
+
+#ifdef __air__
+
+float4 tfetch2DBicubic(constant Texture2DDescriptorHeap& textureHeap,
+                       constant SamplerDescriptorHeap& samplerHeap,
+                       uint resourceDescriptorIndex,
+                       uint samplerDescriptorIndex,
+                       float2 texCoord, float2 offset)
+{
+    texture2d<float> texture = textureHeap.g[resourceDescriptorIndex];
+    sampler sampler = samplerHeap.g[samplerDescriptorIndex];
+    uint2 dimensions = getTexture2DDimensions(texture);
+
+    float x = texCoord.x * dimensions.x + offset.x;
+    float y = texCoord.y * dimensions.y + offset.y;
+
+    x -= 0.5f;
+    y -= 0.5f;
+    float px = floor(x);
+    float py = floor(y);
+    float fx = x - px;
+    float fy = y - py;
+
+    float g0x = g0(fx);
+    float g1x = g1(fx);
+    float h0x = h0(fx);
+    float h1x = h1(fx);
+    float h0y = h0(fy);
+    float h1y = h1(fy);
+
+    float4 r =
+        g0(fy) * (g0x * texture.sample(sampler, float2(px + h0x, py + h0y) / float2(dimensions)) +
+              g1x * texture.sample(sampler, float2(px + h1x, py + h0y) / float2(dimensions))) +
+        g1(fy) * (g0x * texture.sample(sampler, float2(px + h0x, py + h1y) / float2(dimensions)) +
+              g1x * texture.sample(sampler, float2(px + h1x, py + h1y) / float2(dimensions)));
+
+    return r;
+}
+
+float4 tfetch3D(constant Texture3DDescriptorHeap& textureHeap,
+                constant SamplerDescriptorHeap& samplerHeap,
+                uint resourceDescriptorIndex,
+                uint samplerDescriptorIndex,
+                float3 texCoord)
+{
+    texture3d<float> texture = textureHeap.g[resourceDescriptorIndex];
+    sampler sampler = samplerHeap.g[samplerDescriptorIndex];
+    return texture.sample(sampler, texCoord);
+}
+
+float4 tfetchCube(constant TextureCubeDescriptorHeap& textureHeap,
+                  constant SamplerDescriptorHeap& samplerHeap,
+                  uint resourceDescriptorIndex,
+                  uint samplerDescriptorIndex,
+                  float3 texCoord, thread CubeMapData* cubeMapData)
+{
+    texturecube<float> texture = textureHeap.g[resourceDescriptorIndex];
+    sampler sampler = samplerHeap.g[samplerDescriptorIndex];
+    return texture.sample(sampler, cubeMapData->cubeMapDirections[(uint)texCoord.z]);
+}
+
+#else
+
 float4 tfetch2DBicubic(uint resourceDescriptorIndex, uint samplerDescriptorIndex, float2 texCoord, float2 offset)
 {
     Texture2D<float4> texture = g_Texture2DDescriptorHeap[resourceDescriptorIndex];
@@ -146,17 +330,13 @@ float4 tfetch3D(uint resourceDescriptorIndex, uint samplerDescriptorIndex, float
     return g_Texture3DDescriptorHeap[resourceDescriptorIndex].Sample(g_SamplerDescriptorHeap[samplerDescriptorIndex], texCoord);
 }
 
-struct CubeMapData
-{
-    float3 cubeMapDirections[2];
-    uint cubeMapIndex;
-};
-
 float4 tfetchCube(uint resourceDescriptorIndex, uint samplerDescriptorIndex, float3 texCoord, inout CubeMapData cubeMapData)
 {
     return g_TextureCubeDescriptorHeap[resourceDescriptorIndex].Sample(g_SamplerDescriptorHeap[samplerDescriptorIndex], cubeMapData.cubeMapDirections[texCoord.z]);
 }
 
+#endif
+
 float4 tfetchR11G11B10(uint4 value)
 {
     if (g_SpecConstants() & SPEC_CONSTANT_R11G11B10_NORMAL)
@@ -169,7 +349,11 @@ float4 tfetchR11G11B10(uint4 value)
     }
     else
     {
+#ifdef __air__
+        return as_type<float4>(value);
+#else
         return asfloat(value);
+#endif
     }
 }
 
@@ -178,6 +362,19 @@ float4 tfetchTexcoord(uint swappedTexcoords, float4 value, uint semanticIndex)
     return (swappedTexcoords & (1ull << semanticIndex)) != 0 ? value.yxwz : value;
 }
 
+#ifdef __air__
+
+float4 cube(float4 value, thread CubeMapData* cubeMapData)
+{
+    uint index = cubeMapData->cubeMapIndex;
+    cubeMapData->cubeMapDirections[index] = value.xyz;
+    ++cubeMapData->cubeMapIndex;
+
+    return float4(0.0, 0.0, 0.0, index);
+}
+
+#else
+
 float4 cube(float4 value, inout CubeMapData cubeMapData)
 {
     uint index = cubeMapData.cubeMapIndex;
@@ -187,6 +384,8 @@ float4 cube(float4 value, inout CubeMapData cubeMapData)
     return float4(0.0, 0.0, 0.0, index);
 }
 
+#endif
+
 float4 dst(float4 src0, float4 src1)
 {
     float4 dest;
@@ -202,15 +401,34 @@ float4 max4(float4 src0)
     return max(max(src0.x, src0.y), max(src0.z, src0.w));
 }
 
+#ifdef __air__
+
+float2 getPixelCoord(constant Texture2DDescriptorHeap& textureHeap,
+                     uint resourceDescriptorIndex,
+                     float2 texCoord)
+{
+    texture2d<float> texture = textureHeap.g[resourceDescriptorIndex];
+    return (float2)getTexture2DDimensions(texture) * texCoord;
+}
+
+#else
+
 float2 getPixelCoord(uint resourceDescriptorIndex, float2 texCoord)
 {
     return getTexture2DDimensions(g_Texture2DDescriptorHeap[resourceDescriptorIndex]) * texCoord;
 }
 
+#endif
+
 float computeMipLevel(float2 pixelCoord)
 {
+#ifdef __air__
+    float2 dx = dfdx(pixelCoord);
+    float2 dy = dfdy(pixelCoord);
+#else
     float2 dx = ddx(pixelCoord);
     float2 dy = ddy(pixelCoord);
+#endif
     float deltaMaxSqr = max(dot(dx, dx), dot(dy, dy));
     return max(0.0, 0.5 * log2(deltaMaxSqr));
 }

XenosRecomp/shader_recompiler.cpp

@@ -130,14 +130,21 @@ static FetchDestinationSwizzle getDestSwizzle(uint32_t dstSwizzle, uint32_t inde
     return FetchDestinationSwizzle((dstSwizzle >> (index * 3)) & 0x7);
 }
 
-void ShaderRecompiler::printDstSwizzle(uint32_t dstSwizzle, bool operand)
+uint32_t ShaderRecompiler::printDstSwizzle(uint32_t dstSwizzle, bool operand)
 {
+    uint32_t size = 0;
+
     for (size_t i = 0; i < 4; i++)
     {
         const auto swizzle = getDestSwizzle(dstSwizzle, i);
         if (swizzle >= FetchDestinationSwizzle::X && swizzle <= FetchDestinationSwizzle::W)
+        {
             out += SWIZZLES[operand ? uint32_t(swizzle) : i];
+            size++;
+        }
     }
+
+    return size;
 }
 
 void ShaderRecompiler::printDstSwizzle01(uint32_t dstRegister, uint32_t dstSwizzle)
@@ -172,10 +179,15 @@ void ShaderRecompiler::recompile(const VertexFetchInstruction& instr, uint32_t a
 
     indent();
     print("r{}.", instr.dstRegister);
-    printDstSwizzle(instr.dstSwizzle, false);
+    uint32_t size = printDstSwizzle(instr.dstSwizzle, false);
 
     out += " = ";
 
+    if (size <= 1)
+        out += "(float)(";
+    else
+        print("(float{})(", size);
+
     auto findResult = vertexElements.find(address);
     assert(findResult != vertexElements.end());
 
@@ -185,15 +197,15 @@ void ShaderRecompiler::recompile(const VertexFetchInstruction& instr, uint32_t a
     case DeclUsage::Tangent:
     case DeclUsage::Binormal:
         specConstantsMask |= SPEC_CONSTANT_R11G11B10_NORMAL;
-        print("tfetchR11G11B10(");
+        print("tfetchR11G11B10((uint4)");
         break;
 
     case DeclUsage::TexCoord:
-        print("tfetchTexcoord(g_SwappedTexcoords, ");
+        print("tfetchTexcoord(g_SwappedTexcoords, (float4)");
         break;
     }
 
-    print("i{}{}", USAGE_VARIABLES[uint32_t(findResult->second.usage)], uint32_t(findResult->second.usageIndex));
+    print("(input.i{}{})", USAGE_VARIABLES[uint32_t(findResult->second.usage)], uint32_t(findResult->second.usageIndex));
 
     switch (findResult->second.usage)
     {
@@ -208,7 +220,7 @@ void ShaderRecompiler::recompile(const VertexFetchInstruction& instr, uint32_t a
         break;
     }
 
-    out += '.';
+    out += ").";
     printDstSwizzle(instr.dstSwizzle, true);
 
     out += ";\n";
@@ -271,7 +283,13 @@ void ShaderRecompiler::recompile(const TextureFetchInstruction& instr, bool bicu
     if (instr.constIndex == 0 && instr.dimension == TextureDimension::Texture2D)
     {
         indent();
-        print("pixelCoord = getPixelCoord({}_Texture2DDescriptorIndex, ", constNamePtr);
+        println("pixelCoord = getPixelCoord(");
+        println("#ifdef __air__");
+        indent();
+        println("g_Texture2DDescriptorHeap,");
+        println("#endif");
+        indent();
+        print("{}_Texture2DDescriptorIndex, ", constNamePtr);
         printSrcRegister(2);
         out += ");\n";
     }
@@ -331,7 +349,17 @@ void ShaderRecompiler::recompile(const TextureFetchInstruction& instr, bool bicu
         out += "Bicubic";
 #endif
 
-    print("({0}_Texture{1}DescriptorIndex, {0}_SamplerDescriptorIndex, ", constNamePtr, dimension);
+    println("(");
+
+    println("#ifdef __air__");
+    indent();
+    println("\tg_Texture{}DescriptorHeap,", dimension);
+    indent();
+    println("\tg_SamplerDescriptorHeap,");
+    println("#endif");
+
+    indent();
+    print("\t{0}_Texture{1}DescriptorIndex, {0}_SamplerDescriptorIndex, ", constNamePtr, dimension);
     printSrcRegister(componentCount);
 
     switch (instr.dimension)
@@ -340,7 +368,13 @@ void ShaderRecompiler::recompile(const TextureFetchInstruction& instr, bool bicu
         print(", float2({}, {})", instr.offsetX * 0.5f, instr.offsetY * 0.5f);
         break;
     case TextureDimension::TextureCube:
-        out += ", cubeMapData";
+        println("\n#ifdef __air__");
+        indent();
+        println(", &cubeMapData");
+        println("#else");
+        indent();
+        println(", cubeMapData");
+        println("#endif");
         break;
     }
 
@@ -578,6 +612,8 @@ void ShaderRecompiler::recompile(const AluInstruction& instr)
     bool closeIfBracket = false;
 
     std::string_view exportRegister;
+    bool vectorRegister = true;
+
     if (instr.exportData)
     {
         if (isPixelShader)
@@ -585,19 +621,20 @@ void ShaderRecompiler::recompile(const AluInstruction& instr)
             switch (ExportRegister(instr.vectorDest))
             {
             case ExportRegister::PSColor0:
-                exportRegister = "oC0";
+                exportRegister = "output.oC0";
                 break;        
             case ExportRegister::PSColor1:
-                exportRegister = "oC1";
+                exportRegister = "output.oC1";
                 break;        
             case ExportRegister::PSColor2:
-                exportRegister = "oC2";
+                exportRegister = "output.oC2";
                 break;            
             case ExportRegister::PSColor3:
-                exportRegister = "oC3";
+                exportRegister = "output.oC3";
                 break;           
             case ExportRegister::PSDepth:
-                exportRegister = "oDepth";
+                exportRegister = "output.oDepth";
+                vectorRegister = false;
                 break;
             }
         }
@@ -606,7 +643,7 @@ void ShaderRecompiler::recompile(const AluInstruction& instr)
             switch (ExportRegister(instr.vectorDest))
             {
             case ExportRegister::VSPosition:
-                exportRegister = "oPos";
+                exportRegister = "output.oPos";
 
             #ifdef UNLEASHED_RECOMP
                 if (hasMtxProjection)
@@ -673,21 +710,33 @@ void ShaderRecompiler::recompile(const AluInstruction& instr)
         if (!exportRegister.empty())
         {
             out += exportRegister;
-            out += '.';
+            if (vectorRegister)
+                out += '.';
         }
         else
         {
             print("r{}.", instr.vectorDest);
         }
 
+        uint32_t vectorWriteSize = 0;
+
         for (size_t i = 0; i < 4; i++)
         {
             if ((vectorWriteMask >> i) & 0x1)
-                out += SWIZZLES[i];
+            {
+                if (vectorRegister)
+                    out += SWIZZLES[i];
+                vectorWriteSize++;
+            }
         }
 
         out += " = ";
 
+        if (vectorWriteSize > 1)
+            print("(float{})(", vectorWriteSize);
+        else
+            out += "(float)(";
+
         if (instr.vectorSaturate)
             out += "saturate(";
 
@@ -743,15 +792,15 @@ void ShaderRecompiler::recompile(const AluInstruction& instr)
             break;
 
         case AluVectorOpcode::CndEq:
-            print("select({} == 0.0, {}, {})", op(VECTOR_0), op(VECTOR_1), op(VECTOR_2));
+            print("selectWrapper({} == 0.0, {}, {})", op(VECTOR_0), op(VECTOR_1), op(VECTOR_2));
             break;
 
         case AluVectorOpcode::CndGe:
-            print("select({} >= 0.0, {}, {})", op(VECTOR_0), op(VECTOR_1), op(VECTOR_2));
+            print("selectWrapper({} >= 0.0, {}, {})", op(VECTOR_0), op(VECTOR_1), op(VECTOR_2));
             break;
 
         case AluVectorOpcode::CndGt:
-            print("select({} > 0.0, {}, {})", op(VECTOR_0), op(VECTOR_1), op(VECTOR_2));
+            print("selectWrapper({} > 0.0, {}, {})", op(VECTOR_0), op(VECTOR_1), op(VECTOR_2));
             break;
 
         case AluVectorOpcode::Dp4:
@@ -764,7 +813,13 @@ void ShaderRecompiler::recompile(const AluInstruction& instr)
             break;
 
         case AluVectorOpcode::Cube:
+            println("\n#ifdef __air__");
+            indent();
+            print("cube(r{}, &cubeMapData)", instr.src1Register);
+            println("\n#else");
+            indent();
             print("cube(r{}, cubeMapData)", instr.src1Register);
+            println("\n#endif");
             break;
 
         case AluVectorOpcode::Max4:
@@ -802,7 +857,7 @@ void ShaderRecompiler::recompile(const AluInstruction& instr)
         if (instr.vectorSaturate)
             out += ')';
 
-        out += ";\n";
+        out += ");\n";
     }
 
     if (instr.scalarOpcode != AluScalarOpcode::RetainPrev)
@@ -1040,7 +1095,8 @@ void ShaderRecompiler::recompile(const AluInstruction& instr)
         if (!exportRegister.empty())
         {
             out += exportRegister;
-            out += '.';
+            if (vectorRegister)
+                out += '.';
         }
         else
         {
@@ -1049,7 +1105,7 @@ void ShaderRecompiler::recompile(const AluInstruction& instr)
 
         for (size_t i = 0; i < 4; i++)
         {
-            if ((scalarWriteMask >> i) & 0x1)
+            if (((scalarWriteMask >> i) & 0x1) && vectorRegister)
                 out += SWIZZLES[i];
         }
 
@@ -1154,7 +1210,7 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
             {
                 uint32_t tailCount = (isPixelShader ? 224 : 256) - constantInfo->registerIndex;
 
-                println("#define {}(INDEX) select((INDEX) < {}, vk::RawBufferLoad<float4>(g_PushConstants.{}ShaderConstants + ({} + min(INDEX, {})) * 16, 0x10), 0.0)",
+                println("#define {}(INDEX) selectWrapper((INDEX) < {}, vk::RawBufferLoad<float4>(g_PushConstants.{}ShaderConstants + ({} + min(INDEX, {})) * 16, 0x10), 0.0)",
                     constantName, tailCount, shaderName, constantInfo->registerIndex.get(), tailCount - 1);
             }
             else
@@ -1187,6 +1243,75 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
         }
     }
 
+    out += "\n#elif __air__\n\n";
+
+    for (uint32_t i = 0; i < constantTableContainer->constantTable.constants; i++)
+    {
+        const auto constantInfo = reinterpret_cast<const ConstantInfo*>(
+            constantTableData + constantTableContainer->constantTable.constantInfo + i * sizeof(ConstantInfo));
+
+        const char* constantName = reinterpret_cast<const char*>(constantTableData + constantInfo->name);
+
+    #ifdef UNLEASHED_RECOMP
+        if (!isPixelShader)
+        {
+            if (strcmp(constantName, "g_MtxProjection") == 0)
+                hasMtxProjection = true;
+            else if (strcmp(constantName, "g_InstanceTypes") == 0)
+                isMetaInstancer = true;
+            else if (strcmp(constantName, "g_IndexCount") == 0)
+                hasIndexCount = true;
+        }
+        else
+        {
+            if (strcmp(constantName, "g_MtxPrevInvViewProjection") == 0)
+                hasMtxPrevInvViewProjection = true;
+        }
+    #endif
+
+        switch (constantInfo->registerSet)
+        {
+        case RegisterSet::Float4:
+        {
+            const char* shaderName = isPixelShader ? "Pixel" : "Vertex";
+
+            if (constantInfo->registerCount > 1)
+            {
+                uint32_t tailCount = (isPixelShader ? 224 : 256) - constantInfo->registerIndex;
+
+                println("#define {}(INDEX) selectWrapper((INDEX) < {}, (*(reinterpret_cast<device float4*>(g_PushConstants.{}ShaderConstants + ({} + min(INDEX, {})) * 16))), 0.0)",
+                    constantName, tailCount, shaderName, constantInfo->registerIndex.get(), tailCount - 1);
+            }
+            else
+            {
+                println("#define {} (*(reinterpret_cast<device float4*>(g_PushConstants.{}ShaderConstants + {})))",
+                    constantName, shaderName, constantInfo->registerIndex * 16);
+            }
+
+            for (uint16_t j = 0; j < constantInfo->registerCount; j++)
+                float4Constants.emplace(constantInfo->registerIndex + j, constantInfo);
+
+            break;
+        }
+
+        case RegisterSet::Sampler:
+        {
+            for (size_t j = 0; j < std::size(TEXTURE_DIMENSIONS); j++)
+            {
+                println("#define {}_Texture{}DescriptorIndex (*(reinterpret_cast<device uint*>(g_PushConstants.SharedConstants + {})))",
+                    constantName, TEXTURE_DIMENSIONS[j], j * 64 + constantInfo->registerIndex * 4);
+            }
+
+            println("#define {}_SamplerDescriptorIndex (*(reinterpret_cast<device uint*>(g_PushConstants.SharedConstants + {})))",
+                constantName, std::size(TEXTURE_DIMENSIONS) * 64 + constantInfo->registerIndex * 4);
+
+            samplers.emplace(constantInfo->registerIndex, constantName);
+            break;
+        }
+
+        }
+    }
+
     out += "\n#else\n\n";
 
     println("cbuffer {}ShaderConstants : register(b{}, space4)", isPixelShader ? "Pixel" : "Vertex", isPixelShader ? 1 : 0);
@@ -1211,7 +1336,7 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
             if (constantInfo->registerCount > 1)
             {
                 uint32_t tailCount = (isPixelShader ? 224 : 256) - constantInfo->registerIndex;
-                println("#define {0}(INDEX) select((INDEX) < {1}, {0}[min(INDEX, {2})], 0.0)", constantName, tailCount, tailCount - 1);
+                println("#define {0}(INDEX) selectWrapper((INDEX) < {1}, {0}[min(INDEX, {2})], 0.0)", constantName, tailCount, tailCount - 1);
             }
         }
     }
@@ -1254,7 +1379,7 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
         if (constantInfo->registerSet == RegisterSet::Bool)
         {
             const char* constantName = reinterpret_cast<const char*>(constantTableData + constantInfo->name);
-            println("\t#define {} (1 << {})", constantName, constantInfo->registerIndex + (isPixelShader ? 16 : 0));
+            println("#define {} (1 << {})", constantName, constantInfo->registerIndex + (isPixelShader ? 16 : 0));
             boolConstants.emplace(constantInfo->registerIndex, constantName);
         }
     }
@@ -1263,45 +1388,29 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
 
     const auto shader = reinterpret_cast<const Shader*>(shaderData + shaderContainer->shaderOffset);
 
-    out += "#ifndef __spirv__\n";
-
-    if (isPixelShader)
-        out += "[shader(\"pixel\")]\n";
-    else
-        out += "[shader(\"vertex\")]\n";
-
-    out += "#endif\n";
-
-    out += "void main(\n";
+    println("struct {}", isPixelShader ? "Interpolators" : "VertexShaderInput");
+    out += "{\n";
 
     if (isPixelShader)
     {
-        out += "\tin float4 iPos : SV_Position,\n";
+        out += "#if __air__\n";
 
         for (auto& [usage, usageIndex] : INTERPOLATORS)
-            println("\tin float4 i{0}{1} : {2}{1},", USAGE_VARIABLES[uint32_t(usage)], usageIndex, USAGE_SEMANTICS[uint32_t(usage)]);
+            println("\tfloat4 i{}{};", USAGE_VARIABLES[uint32_t(usage)], usageIndex);
 
-        out += "#ifdef __spirv__\n";
-        out += "\tin bool iFace : SV_IsFrontFace\n";
         out += "#else\n";
-        out += "\tin uint iFace : SV_IsFrontFace\n";
-        out += "#endif\n";
 
-        auto pixelShader = reinterpret_cast<const PixelShader*>(shader);
-        if (pixelShader->outputs & PIXEL_SHADER_OUTPUT_COLOR0)
-            out += ",\n\tout float4 oC0 : SV_Target0";
-        if (pixelShader->outputs & PIXEL_SHADER_OUTPUT_COLOR1)
-            out += ",\n\tout float4 oC1 : SV_Target1";
-        if (pixelShader->outputs & PIXEL_SHADER_OUTPUT_COLOR2)
-            out += ",\n\tout float4 oC2 : SV_Target2";
-        if (pixelShader->outputs & PIXEL_SHADER_OUTPUT_COLOR3)
-            out += ",\n\tout float4 oC3 : SV_Target3";
-        if (pixelShader->outputs & PIXEL_SHADER_OUTPUT_DEPTH)
-            out += ",\n\tout float oDepth : SV_Depth";
+        for (auto& [usage, usageIndex] : INTERPOLATORS)
+            println("\tfloat4 i{0}{1} : {2}{1};", USAGE_VARIABLES[uint32_t(usage)], usageIndex, USAGE_SEMANTICS[uint32_t(usage)]);
+
+        out += "#endif\n";
     }
     else
     {
         auto vertexShader = reinterpret_cast<const VertexShader*>(shader);
+
+        out += "#if __air__\n";
+
         for (uint32_t i = 0; i < vertexShader->vertexElementCount; i++)
         {
             union
@@ -1314,13 +1423,52 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
 
             const char* usageType = USAGE_TYPES[uint32_t(vertexElement.usage)];
 
-        #ifdef UNLEASHED_RECOMP
+#ifdef UNLEASHED_RECOMP
             if ((vertexElement.usage == DeclUsage::TexCoord && vertexElement.usageIndex == 2 && isMetaInstancer) ||
                 (vertexElement.usage == DeclUsage::Position && vertexElement.usageIndex == 1))
             {
                 usageType = "uint4";
             }
-        #endif
+#endif
+
+            out += '\t';
+
+            print("{0} i{1}{2}", usageType, USAGE_VARIABLES[uint32_t(vertexElement.usage)],
+                uint32_t(vertexElement.usageIndex));
+
+            for (auto& usageLocation : USAGE_LOCATIONS)
+            {
+                if (usageLocation.usage == vertexElement.usage && usageLocation.usageIndex == vertexElement.usageIndex)
+                {
+                    println(" [[attribute({})]];", usageLocation.location);
+                    break;
+                }
+            }
+
+            vertexElements.emplace(uint32_t(vertexElement.address), vertexElement);
+        }
+
+        out += "#else\n";
+
+        for (uint32_t i = 0; i < vertexShader->vertexElementCount; i++)
+        {
+            union
+            {
+                VertexElement vertexElement;
+                uint32_t value;
+            };
+
+            value = vertexShader->vertexElementsAndInterpolators[vertexShader->field18 + i];
+
+            const char* usageType = USAGE_TYPES[uint32_t(vertexElement.usage)];
+
+#ifdef UNLEASHED_RECOMP
+            if ((vertexElement.usage == DeclUsage::TexCoord && vertexElement.usageIndex == 2 && isMetaInstancer) ||
+                (vertexElement.usage == DeclUsage::Position && vertexElement.usageIndex == 1))
+            {
+                usageType = "uint4";
+            }
+#endif
 
             out += '\t';
 
@@ -1333,40 +1481,162 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
                 }
             }
 
-            println("in {0} i{1}{2} : {3}{2},", usageType, USAGE_VARIABLES[uint32_t(vertexElement.usage)],
+            println("{0} i{1}{2} : {3}{2};", usageType, USAGE_VARIABLES[uint32_t(vertexElement.usage)],
                 uint32_t(vertexElement.usageIndex), USAGE_SEMANTICS[uint32_t(vertexElement.usage)]);
-
-            vertexElements.emplace(uint32_t(vertexElement.address), vertexElement);
         }
 
+        out += "#endif\n";
+    }
+
+    out += "};\n";
+
+    println("struct {}", isPixelShader ? "PixelShaderOutput" : "Interpolators");
+    out += "{\n";
+
+    if (isPixelShader)
+    {
+        out += "#if __air__\n";
+
+        auto pixelShader = reinterpret_cast<const PixelShader*>(shader);
+        if (pixelShader->outputs & PIXEL_SHADER_OUTPUT_COLOR0)
+            out += "\tfloat4 oC0 [[color(0)]];\n";
+        if (pixelShader->outputs & PIXEL_SHADER_OUTPUT_COLOR1)
+            out += "\tfloat4 oC1 [[color(1)]];\n";
+        if (pixelShader->outputs & PIXEL_SHADER_OUTPUT_COLOR2)
+            out += "\tfloat4 oC2 [[color(2)]];\n";
+        if (pixelShader->outputs & PIXEL_SHADER_OUTPUT_COLOR3)
+            out += "\tfloat4 oC3 [[color(3)]];\n";
+        if (pixelShader->outputs & PIXEL_SHADER_OUTPUT_DEPTH)
+            out += "\tfloat oDepth [[depth(any)]];\n";
+
+        out += "#else\n";
+
+        if (pixelShader->outputs & PIXEL_SHADER_OUTPUT_COLOR0)
+            out += "\tfloat4 oC0 : SV_Target0;\n";
+        if (pixelShader->outputs & PIXEL_SHADER_OUTPUT_COLOR1)
+            out += "\tfloat4 oC1 : SV_Target1;\n";
+        if (pixelShader->outputs & PIXEL_SHADER_OUTPUT_COLOR2)
+            out += "\tfloat4 oC2 : SV_Target2;\n";
+        if (pixelShader->outputs & PIXEL_SHADER_OUTPUT_COLOR3)
+            out += "\tfloat4 oC3 : SV_Target3;\n";
+        if (pixelShader->outputs & PIXEL_SHADER_OUTPUT_DEPTH)
+            out += "\tfloat oDepth : SV_Depth;\n";
+
+        out += "#endif\n";
+    }
+    else
+    {
+        out += "#if __air__\n";
+
+        out += "\tfloat4 oPos [[position]];\n";
+
+        for (auto& [usage, usageIndex] : INTERPOLATORS)
+            print("\tfloat4 o{0}{1};\n", USAGE_VARIABLES[uint32_t(usage)], usageIndex);
+
+        out += "#else\n";
+
+        out += "\tfloat4 oPos : SV_Position;\n";
+
+        for (auto& [usage, usageIndex] : INTERPOLATORS)
+            print("\tfloat4 o{0}{1} : {2}{1};\n", USAGE_VARIABLES[uint32_t(usage)], usageIndex, USAGE_SEMANTICS[uint32_t(usage)]);
+
+        out += "#endif\n";
+    }
+
+    out += "};\n";
+
+    out += "#ifdef __air__\n";
+
+    if (isPixelShader)
+        out += "[[fragment]]\n";
+    else
+        out += "[[vertex]]\n";
+
+    out += "#elifndef __spirv__\n";
+
+    if (isPixelShader)
+        out += "[shader(\"pixel\")]\n";
+    else
+        out += "[shader(\"vertex\")]\n";
+
+    out += "#endif\n";
+
+    println("{} shaderMain(", isPixelShader ? "PixelShaderOutput" : "Interpolators");
+
+    if (isPixelShader)
+    {
+        out += "#ifdef __air__\n";
+
+        out += "\tInterpolators input [[stage_in]],\n";
+        out += "\tfloat4 iPos [[position]],\n";
+        out += "\tbool iFace [[front_facing]],\n";
+
+        out += "\tconstant Texture2DDescriptorHeap& g_Texture2DDescriptorHeap [[buffer(0)]],\n";
+        out += "\tconstant Texture3DDescriptorHeap& g_Texture3DDescriptorHeap [[buffer(1)]],\n";
+        out += "\tconstant TextureCubeDescriptorHeap& g_TextureCubeDescriptorHeap [[buffer(2)]],\n";
+        out += "\tconstant SamplerDescriptorHeap& g_SamplerDescriptorHeap [[buffer(3)]],\n";
+        out += "\tconstant PushConstants& g_PushConstants [[buffer(8)]]\n";
+
+        out += "#else\n";
+
+        out += "\tInterpolators input,\n";
+        out += "\tin float4 iPos : SV_Position,\n";
+
+        out += "#ifdef __spirv__\n";
+        out += "\tin bool iFace : SV_IsFrontFace\n";
+        out += "#else\n";
+        out += "\tin uint iFace : SV_IsFrontFace\n";
+        out += "#endif\n";
+
+        out += "\n#endif\n";
+    }
+    else
+    {
+        out += "#ifdef __air__\n";
+        out += "\tconstant PushConstants& g_PushConstants [[buffer(8)]],\n";
+        out += "\tVertexShaderInput input [[stage_in]]\n";
+        out += "#else\n";
+        out += "\tVertexShaderInput input\n";
+        out += "#endif\n";
+
     #ifdef UNLEASHED_RECOMP
         if (hasIndexCount)
         {
+            out += "\t,\n";
+            out += "#ifdef __air__\n";
+            out += "\tuint iVertexId [[vertex_id]],\n";
+            out += "\tuint iInstanceId [[instance_id]]\n";
+            out += "#else\n";
             out += "\tin uint iVertexId : SV_VertexID,\n";
-            out += "\tin uint iInstanceId : SV_InstanceID,\n";
+            out += "\tin uint iInstanceId : SV_InstanceID\n";
+            out += "#endif\n";
         }
     #endif
-
-        out += "\tout float4 oPos : SV_Position";
-
-        for (auto& [usage, usageIndex] : INTERPOLATORS)
-            print(",\n\tout float4 o{0}{1} : {2}{1}", USAGE_VARIABLES[uint32_t(usage)], usageIndex, USAGE_SEMANTICS[uint32_t(usage)]);
     }
 
     out += ")\n";
     out += "{\n";
 
 #ifdef UNLEASHED_RECOMP
+
+    std::string outputName = isPixelShader ? "PixelShaderOutput" : "Interpolators";
+
+    out += "#ifdef __air__\n";
+    println("\t{0} output = {0}{{}};", outputName);
+    out += "#else\n";
+    println("\t{0} output = ({0})0;", outputName);
+    out += "#endif\n";
+
     if (hasMtxProjection)
     {
         specConstantsMask |= SPEC_CONSTANT_REVERSE_Z;
 
-        out += "\toPos = 0.0;\n";
+        out += "\toutput.oPos = 0.0;\n";
 
         out += "\tfloat4x4 mtxProjection = float4x4(g_MtxProjection(0), g_MtxProjection(1), g_MtxProjection(2), g_MtxProjection(3));\n";
         out += "\tfloat4x4 mtxProjectionReverseZ = mul(mtxProjection, float4x4(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, -1, 0, 0, 0, 1, 1));\n";
 
-        out += "\t[unroll] for (int iterationIndex = 0; iterationIndex < 2; iterationIndex++)\n";
+        out += "\tUNROLL for (int iterationIndex = 0; iterationIndex < 2; iterationIndex++)\n";
         out += "\t{\n";
     }
 #endif
@@ -1381,8 +1651,13 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
             auto value = reinterpret_cast<const be<uint32_t>*>(shaderData + shaderContainer->virtualSize + definition->physicalOffset);
             for (uint16_t i = 0; i < (definition->count + 3) / 4; i++)
             {
+                println("#ifdef __air__");
+                println("\tfloat4 c{} = as_type<float4>(uint4(0x{:X}, 0x{:X}, 0x{:X}, 0x{:X}));",
+                    definition->registerIndex + i - (isPixelShader ? 256 : 0), value[0].get(), value[1].get(), value[2].get(), value[3].get());
+                println("#else");
                 println("\tfloat4 c{} = asfloat(uint4(0x{:X}, 0x{:X}, 0x{:X}, 0x{:X}));",
                     definition->registerIndex + i - (isPixelShader ? 256 : 0), value[0].get(), value[1].get(), value[2].get(), value[3].get());
+                println("#endif");
 
                 value += 4;
             }
@@ -1433,14 +1708,14 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
         if (isPixelShader)
         {
             value = reinterpret_cast<const PixelShader*>(shader)->interpolators[i];
-            println("\tfloat4 r{} = i{}{};", uint32_t(interpolator.reg), USAGE_VARIABLES[uint32_t(interpolator.usage)], uint32_t(interpolator.usageIndex));
+            println("\tfloat4 r{} = input.i{}{};", uint32_t(interpolator.reg), USAGE_VARIABLES[uint32_t(interpolator.usage)], uint32_t(interpolator.usageIndex));
             printedRegisters[interpolator.reg] = true;
         }
         else
         {
             auto vertexShader = reinterpret_cast<const VertexShader*>(shader);
             value = vertexShader->vertexElementsAndInterpolators[vertexShader->field18 + vertexShader->vertexElementCount + i];
-            interpolators.emplace(i, fmt::format("o{}{}", USAGE_VARIABLES[uint32_t(interpolator.usage)], uint32_t(interpolator.usageIndex)));
+            interpolators.emplace(i, fmt::format("output.o{}{}", USAGE_VARIABLES[uint32_t(interpolator.usage)], uint32_t(interpolator.usageIndex)));
         }
     }
 
@@ -1448,11 +1723,11 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
     {
     #ifdef UNLEASHED_RECOMP
         if (!hasMtxProjection)
-            out += "\toPos = 0.0;\n";
+            out += "\toutput.oPos = 0.0;\n";
     #endif
 
         for (auto& [usage, usageIndex] : INTERPOLATORS)
-            println("\to{}{} = 0.0;", USAGE_VARIABLES[uint32_t(usage)], usageIndex);
+            println("\toutput.o{}{} = 0.0;", USAGE_VARIABLES[uint32_t(usage)], usageIndex);
 
         out += "\n";
     }
@@ -1488,7 +1763,11 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
 #ifdef UNLEASHED_RECOMP
         out += "\tfloat2 pixelCoord = 0.0;\n";
 #endif
+        out += "#ifdef __air__\n";
+        out += "\tCubeMapData cubeMapData = CubeMapData{};\n";
+        out += "#else\n";
         out += "\tCubeMapData cubeMapData = (CubeMapData)0;\n";
+        out += "#endif\n";
     }
 
     const be<uint32_t>* code = reinterpret_cast<const be<uint32_t>*>(shaderData + shaderContainer->virtualSize + shader->physicalOffset);
@@ -1646,7 +1925,7 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
                 {
                     indent();
                 #ifdef UNLEASHED_RECOMP
-                    print("[unroll] ");
+                    print("UNROLL ");
                 #endif
                     println("for (aL = 0; aL < i{}.x; aL++)", uint32_t(cfInstr.loopStart.loopId));
                     indent();
@@ -1754,27 +2033,27 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
                             specConstantsMask |= SPEC_CONSTANT_BICUBIC_GI_FILTER;
 
                             indent();
-                            out += "if (g_SpecConstants() & SPEC_CONSTANT_BICUBIC_GI_FILTER)";
+                            out += "if (g_SpecConstants() & SPEC_CONSTANT_BICUBIC_GI_FILTER)\n";
                             indent();
-                            out += '{';
+                            out += "{\n";
 
                             ++indentation;
                             recompile(textureFetch, true);
                             --indentation;
 
                             indent();
-                            out += "}";
+                            out += "}\n";
                             indent();
-                            out += "else";
+                            out += "else\n";
                             indent();
-                            out += '{';
+                            out += "{\n";
 
                             ++indentation;
                             recompile(textureFetch, false);
                             --indentation;
 
                             indent();
-                            out += '}';
+                            out += "}\n";
                         }
                         else
                     #endif
@@ -1799,31 +2078,31 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
                     specConstantsMask |= SPEC_CONSTANT_ALPHA_TEST;
 
                     indent();
-                    out += "[branch] if (g_SpecConstants() & SPEC_CONSTANT_ALPHA_TEST)";
+                    out += "BRANCH if (g_SpecConstants() & SPEC_CONSTANT_ALPHA_TEST)\n";
                     indent();
-                    out += '{';
+                    out += "{\n";
 
                     indent();
-                    out += "\tclip(oC0.w - g_AlphaThreshold);\n";
+                    out += "\tclip(output.oC0.w - g_AlphaThreshold);\n";
 
                     indent();
-                    out += "}";
+                    out += "}\n";
 
                 #ifdef UNLEASHED_RECOMP
                     specConstantsMask |= SPEC_CONSTANT_ALPHA_TO_COVERAGE;
 
                     indent();
-                    out += "else if (g_SpecConstants() & SPEC_CONSTANT_ALPHA_TO_COVERAGE)";
+                    out += "else if (g_SpecConstants() & SPEC_CONSTANT_ALPHA_TO_COVERAGE)\n";
                     indent();
-                    out += '{';
+                    out += "{\n";
 
                     indent();
-                    out += "\toC0.w *= 1.0 + computeMipLevel(pixelCoord) * 0.25;\n";
+                    out += "\toutput.oC0.w *= 1.0 + computeMipLevel(pixelCoord) * 0.25;\n";
                     indent();
-                    out += "\toC0.w = 0.5 + (oC0.w - g_AlphaThreshold) / max(fwidth(oC0.w), 1e-6);\n";
+                    out += "\toutput.oC0.w = 0.5 + (output.oC0.w - g_AlphaThreshold) / max(fwidth(output.oC0.w), 1e-6);\n";
 
                     indent();
-                    out += '}';
+                    out += "}\n";
                 #endif
                 }
 
@@ -1838,7 +2117,7 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
                     else
                 #endif
                     {
-                        out += "return;\n";
+                        out += "return output;\n";
                     }
                 }
                 else
@@ -1872,5 +2151,7 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
         out += "\t}\n";
 #endif
 
+    out += "\treturn output;\n";
+
     out += "}";
 }

XenosRecomp/shader_recompiler.h

@@ -45,7 +45,7 @@ struct ShaderRecompiler : StringBuffer
             out += '\t';
     }
 
-    void printDstSwizzle(uint32_t dstSwizzle, bool operand);
+    uint32_t printDstSwizzle(uint32_t dstSwizzle, bool operand);
     void printDstSwizzle01(uint32_t dstRegister, uint32_t dstSwizzle);
 
     void recompile(const VertexFetchInstruction& instr, uint32_t address);