tests/SkSLMetalTest.cpp - platform/external/skia - Gitiles

 /*
  * Copyright 2019 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */

 #include "src/sksl/SkSLCompiler.h"

 #include "tests/Test.h"

 static void test(skiatest::Reporter* r, const SkSL::Program::Settings& settings, const char* src,
                  const char* expected, SkSL::Program::Inputs* inputs,
                  SkSL::Program::Kind kind = SkSL::Program::kFragment_Kind) {
     SkSL::Compiler compiler;
     SkSL::String output;
     std::unique_ptr<SkSL::Program> program = compiler.convertProgram(kind, SkSL::String(src),
                                                                      settings);
     if (!program) {
         SkDebugf("Unexpected error compiling %s\n%s", src, compiler.errorText().c_str());
     }
     REPORTER_ASSERT(r, program);
     *inputs = program->fInputs;
     REPORTER_ASSERT(r, compiler.toMetal(*program, &output));
     if (program) {
         SkSL::String skExpected(expected);
         if (output != skExpected) {
             SkDebugf("MSL MISMATCH:\nsource:\n%s\n\nexpected:\n'%s'\n\nreceived:\n'%s'", src,
                      expected, output.c_str());
         }
         REPORTER_ASSERT(r, output == skExpected);
     }
 }

 static void test(skiatest::Reporter* r, const GrShaderCaps& caps, const char* src,
                  const char* expected, SkSL::Program::Kind kind = SkSL::Program::kFragment_Kind) {
     SkSL::Program::Settings settings;
     settings.fCaps = &caps;
     SkSL::Program::Inputs inputs;
     test(r, settings, src, expected, &inputs, kind);
 }

 DEF_TEST(SkSLMetalHelloWorld, r) {
     test(r, *SkSL::ShaderCapsFactory::Default(),
          "void main() { sk_FragColor = half4(0.75); }",
          "#include <metal_stdlib>\n"
          "#include <simd/simd.h>\n"
          "using namespace metal;\n"
          "struct Inputs {\n"
          "};\n"
          "struct Outputs {\n"
          "    float4 sk_FragColor [[color(0)]];\n"
          "};\n"
          "fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {\n"
          "    Outputs _outputStruct;\n"
          "    thread Outputs* _out = &_outputStruct;\n"
          "    _out->sk_FragColor = float4(0.75);\n"
          "    return *_out;\n"
          "}\n");
 }

 DEF_TEST(SkSLMetal2x2MatrixCopyFromFloat2x2, r) {
     test(r, *SkSL::ShaderCapsFactory::Default(),
 R"__SkSL__(
 void main() {
   float2x2 m1 = float2x2(float2(1, 2), float2(3, 4));
   float2x2 m2 = m1;
   float2x2 m3 = float2x2(m1);
   sk_FragColor = half4(half(m1[0][0] + m2[0][0] + m3[0][0]));
 })__SkSL__",
 R"__MSL__(#include <metal_stdlib>
 #include <simd/simd.h>
 using namespace metal;
 struct Inputs {
 };
 struct Outputs {
     float4 sk_FragColor [[color(0)]];
 };
 fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
     Outputs _outputStruct;
     thread Outputs* _out = &_outputStruct;
     _out->sk_FragColor = float4((float2x2(float2(1.0, 2.0), float2(3.0, 4.0))[0][0] + float2x2(float2(1.0, 2.0), float2(3.0, 4.0))[0][0]) + float2x2(float2(1.0, 2.0), float2(3.0, 4.0))[0][0]);
     return *_out;
 }
 )__MSL__");
 }

 DEF_TEST(SkSLMetal2x2MatrixCopyFromConstantPropagatedFloat4, r) {
     test(r, *SkSL::ShaderCapsFactory::Default(),
 R"__SkSL__(
 void main() {
   float2x2 m1 = float2x2(float4(1, 2, 3, 4));
   float2x2 m2 = m1;
   float2x2 m3 = float2x2(m1);
   sk_FragColor = half4(half(m1[0][0] + m2[0][0] + m3[0][0]));
 })__SkSL__",
 R"__MSL__(#include <metal_stdlib>
 #include <simd/simd.h>
 using namespace metal;
 struct Inputs {
 };
 struct Outputs {
     float4 sk_FragColor [[color(0)]];
 };
 float2x2 float2x2_from_float4(float4 x0) {
     return float2x2(float2(x0[0], x0[1]), float2(x0[2], x0[3]));
 }
 fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
     Outputs _outputStruct;
     thread Outputs* _out = &_outputStruct;
     _out->sk_FragColor = float4((float2x2_from_float4(float4(1.0, 2.0, 3.0, 4.0))[0][0] + float2x2_from_float4(float4(1.0, 2.0, 3.0, 4.0))[0][0]) + float2x2_from_float4(float4(1.0, 2.0, 3.0, 4.0))[0][0]);
     return *_out;
 }
 )__MSL__");
 }

 DEF_TEST(SkSLMetalCastMat2x2ToMat3x3, r) {
     test(r, *SkSL::ShaderCapsFactory::Default(),
 R"__SkSL__(
 void main() {
 float3x3 a = float3x3(1);
 float3x3 b = float3x3(float2x2(1));
 sk_FragColor.x = (a[0] == b[0]) ? 0 : 1;
 }
 )__SkSL__",
 R"__MSL__(#include <metal_stdlib>
 #include <simd/simd.h>
 using namespace metal;
 struct Inputs {
 };
 struct Outputs {
     float4 sk_FragColor [[color(0)]];
 };
 float3x3 float3x3_from_float2x2(float2x2 x0) {
     return float3x3(float3(x0[0].xy, 0.0), float3(x0[1].xy, 0.0), float3(0.0, 0.0, 1.0));
 }
 fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
     Outputs _outputStruct;
     thread Outputs* _out = &_outputStruct;
     _out->sk_FragColor.x = float(all(float3x3(1.0)[0] == float3x3_from_float2x2(float2x2(1.0))[0]) ? 0 : 1);
     return *_out;
 }
 )__MSL__");
 }

 DEF_TEST(SkSLMetalCastMat2x3ToMat4x4, r) {
     test(r, *SkSL::ShaderCapsFactory::Default(),
 R"__SkSL__(
 void main() {
 float4x4 a = float4x4(6);
 float4x4 b = float4x4(float2x3(7));
 sk_FragColor.x = (a[1] == b[1]) ? 0 : 1;
 }
 )__SkSL__",
 R"__MSL__(#include <metal_stdlib>
 #include <simd/simd.h>
 using namespace metal;
 struct Inputs {
 };
 struct Outputs {
     float4 sk_FragColor [[color(0)]];
 };
 float4x4 float4x4_from_float2x3(float2x3 x0) {
     return float4x4(float4(x0[0].xyz, 0.0), float4(x0[1].xyz, 0.0), float4(0.0, 0.0, 1.0, 0.0), float4(0.0, 0.0, 0.0, 1.0));
 }
 fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
     Outputs _outputStruct;
     thread Outputs* _out = &_outputStruct;
     _out->sk_FragColor.x = float(all(float4x4(6.0)[1] == float4x4_from_float2x3(float2x3(7.0))[1]) ? 0 : 1);
     return *_out;
 }
 )__MSL__");
 }

 DEF_TEST(SkSLMetalCastMat4x4ToMat3x4, r) {
     test(r, *SkSL::ShaderCapsFactory::Default(),
 R"__SkSL__(
 void main() {
 float3x4 a = float3x4(1);
 float3x4 b = float3x4(float4x4(1));
 sk_FragColor.x = (a[0] == b[0]) ? 0 : 1;
 }
 )__SkSL__",
 R"__MSL__(#include <metal_stdlib>
 #include <simd/simd.h>
 using namespace metal;
 struct Inputs {
 };
 struct Outputs {
     float4 sk_FragColor [[color(0)]];
 };
 float3x4 float3x4_from_float4x4(float4x4 x0) {
     return float3x4(float4(x0[0].xyzw), float4(x0[1].xyzw), float4(x0[2].xyzw));
 }
 fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
     Outputs _outputStruct;
     thread Outputs* _out = &_outputStruct;
     _out->sk_FragColor.x = float(all(float3x4(1.0)[0] == float3x4_from_float4x4(float4x4(1.0))[0]) ? 0 : 1);
     return *_out;
 }
 )__MSL__");
 }

 DEF_TEST(SkSLMetalCastMat4x4ToMat4x3, r) {
     test(r, *SkSL::ShaderCapsFactory::Default(),
 R"__SkSL__(
 void main() {
 float4x3 a = float4x3(1);
 float4x3 b = float4x3(float4x4(1));
 sk_FragColor.x = (a[0] == b[0]) ? 0 : 1;
 }
 )__SkSL__",
 R"__MSL__(#include <metal_stdlib>
 #include <simd/simd.h>
 using namespace metal;
 struct Inputs {
 };
 struct Outputs {
     float4 sk_FragColor [[color(0)]];
 };
 float4x3 float4x3_from_float4x4(float4x4 x0) {
     return float4x3(float3(x0[0].xyz), float3(x0[1].xyz), float3(x0[2].xyz), float3(x0[3].xyz));
 }
 fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
     Outputs _outputStruct;
     thread Outputs* _out = &_outputStruct;
     _out->sk_FragColor.x = float(all(float4x3(1.0)[0] == float4x3_from_float4x4(float4x4(1.0))[0]) ? 0 : 1);
     return *_out;
 }
 )__MSL__");
 }

 DEF_TEST(SkSLMetalMatrices, r) {
     test(r, *SkSL::ShaderCapsFactory::Default(),
 R"__SkSL__(
 void main() {
   float2x2 m1 = float2x2(float4(1, 2, 3, 4));
   float2x2 m2 = float2x2(float4(0));
   float2x2 m3 = float2x2(m1);
   float2x2 m4 = float2x2(1);
   float2x2 m5 = float2x2(m1[0][0]);
   float2x2 m6 = float2x2(1, 2, 3, 4);
   float2x2 m7 = float2x2(5, float3(6, 7, 8));
   float3x2 m8 = float3x2(float2(1, 2), 3, float3(4, 5, 6));
   float3x3 m9 = float3x3(1);
   float4x4 m10 = float4x4(1);
   float4x4 m11 = float4x4(2);
   sk_FragColor = half4(half(m1[0][0] + m2[0][0] + m3[0][0] + m4[0][0] + m5[0][0] +
                             m6[0][0] + m7[0][0] + m8[0][0] + m9[0][0] + m10[0][0] + m11[0][0]));
 })__SkSL__",
 R"__MSL__(#include <metal_stdlib>
 #include <simd/simd.h>
 using namespace metal;
 struct Inputs {
 };
 struct Outputs {
     float4 sk_FragColor [[color(0)]];
 };
 float2x2 float2x2_from_float4(float4 x0) {
     return float2x2(float2(x0[0], x0[1]), float2(x0[2], x0[3]));
 }
 float2x2 float2x2_from_float_float3(float x0, float3 x1) {
     return float2x2(float2(x0, x1[0]), float2(x1[1], x1[2]));
 }
 float3x2 float3x2_from_float2_float_float3(float2 x0, float x1, float3 x2) {
     return float3x2(float2(x0[0], x0[1]), float2(x1, x2[0]), float2(x2[1], x2[2]));
 }
 fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
     Outputs _outputStruct;
     thread Outputs* _out = &_outputStruct;
     float2x2 m5 = float2x2(float2x2_from_float4(float4(1.0, 2.0, 3.0, 4.0))[0][0]);
     _out->sk_FragColor = float4((((((((((float2x2_from_float4(float4(1.0, 2.0, 3.0, 4.0))[0][0] + float2x2_from_float4(float4(0.0))[0][0]) + float2x2_from_float4(float4(1.0, 2.0, 3.0, 4.0))[0][0]) + float2x2(1.0)[0][0]) + m5[0][0]) + float2x2(float2(1.0, 2.0), float2(3.0, 4.0))[0][0]) + float2x2_from_float_float3(5.0, float3(6.0, 7.0, 8.0))[0][0]) + float3x2_from_float2_float_float3(float2(1.0, 2.0), 3.0, float3(4.0, 5.0, 6.0))[0][0]) + float3x3(1.0)[0][0]) + float4x4(1.0)[0][0]) + float4x4(2.0)[0][0]);
     return *_out;
 }
 )__MSL__");
 }

 DEF_TEST(SkSLMetalConstantSwizzle, r) {
     test(r, *SkSL::ShaderCapsFactory::Default(),
          "void main() {"
          "sk_FragColor = half4(0.5).rgb1;"
          "}",
          "#include <metal_stdlib>\n"
          "#include <simd/simd.h>\n"
          "using namespace metal;\n"
          "struct Inputs {\n"
          "};\n"
          "struct Outputs {\n"
          "    float4 sk_FragColor [[color(0)]];\n"
          "};\n"
          "fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {\n"
          "    Outputs _outputStruct;\n"
          "    thread Outputs* _out = &_outputStruct;\n"
          "    _out->sk_FragColor = float4(float4(0.5).xyz, 1);\n"
          "    return *_out;\n"
          "}\n");
 }

 DEF_TEST(SkSLMetalNumericGlobals, r) {
     test(r, *SkSL::ShaderCapsFactory::Default(),
 R"__SkSL__(
 half attr1;
 int attr2 = 123;
 float attr3;
 half4 attr4 = half4(4, 5, 6, 7);
 void main()
 {
     sk_FragColor = half4(attr1, attr2, half(attr3), attr4.x);
 }
 )__SkSL__",
 R"__MSL__(#include <metal_stdlib>
 #include <simd/simd.h>
 using namespace metal;
 struct Inputs {
 };
 struct Outputs {
     float4 sk_FragColor [[color(0)]];
 };
 struct Globals {
     float attr1;
     int attr2;
     float attr3;
     float4 attr4;
 };


 fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
     Globals globalStruct{{}, 123, {}, float4(4.0, 5.0, 6.0, 7.0)};
     thread Globals* _globals = &globalStruct;
     (void)_globals;
     Outputs _outputStruct;
     thread Outputs* _out = &_outputStruct;
     _out->sk_FragColor = float4(_globals->attr1, float(_globals->attr2), _globals->attr3, _globals->attr4.x);
     return *_out;
 }
 )__MSL__");
 }

 DEF_TEST(SkSLMetalSamplerGlobals, r) {
     test(r, *SkSL::ShaderCapsFactory::Default(),
 R"__SkSL__(
 layout(binding=1) uniform sampler2D texA;
 layout(binding=0) uniform sampler2D texB;
 void main()
 {
     sk_FragColor = sample(texA, half2(0)) * sample(texB, half2(0));
 }
 )__SkSL__",
 R"__MSL__(#include <metal_stdlib>
 #include <simd/simd.h>
 using namespace metal;
 struct Inputs {
 };
 struct Outputs {
     float4 sk_FragColor [[color(0)]];
 };
 struct Globals {
     texture2d<float> texA;
     sampler texASmplr;
     texture2d<float> texB;
     sampler texBSmplr;
 };

 fragment Outputs fragmentMain(Inputs _in [[stage_in]], texture2d<float> texA[[texture(1)]], sampler texASmplr[[sampler(1)]], texture2d<float> texB[[texture(0)]], sampler texBSmplr[[sampler(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
     Globals globalStruct{texA, texASmplr, texB, texBSmplr};
     thread Globals* _globals = &globalStruct;
     (void)_globals;
     Outputs _outputStruct;
     thread Outputs* _out = &_outputStruct;
     _out->sk_FragColor = _globals->texA.sample(_globals->texASmplr, float2(0.0)) * _globals->texB.sample(_globals->texBSmplr, float2(0.0));
     return *_out;
 }
 )__MSL__");
 }
	/*
	* Copyright 2019 Google Inc.
	*
	* Use of this source code is governed by a BSD-style license that can be
	* found in the LICENSE file.
	*/

	#include "src/sksl/SkSLCompiler.h"

	#include "tests/Test.h"

	static void test(skiatest::Reporter* r, const SkSL::Program::Settings& settings, const char* src,
	const char* expected, SkSL::Program::Inputs* inputs,
	SkSL::Program::Kind kind = SkSL::Program::kFragment_Kind) {
	SkSL::Compiler compiler;
	SkSL::String output;
	std::unique_ptr<SkSL::Program> program = compiler.convertProgram(kind, SkSL::String(src),
	settings);
	if (!program) {
	SkDebugf("Unexpected error compiling %s\n%s", src, compiler.errorText().c_str());
	}
	REPORTER_ASSERT(r, program);
	*inputs = program->fInputs;
	REPORTER_ASSERT(r, compiler.toMetal(*program, &output));
	if (program) {
	SkSL::String skExpected(expected);
	if (output != skExpected) {
	SkDebugf("MSL MISMATCH:\nsource:\n%s\n\nexpected:\n'%s'\n\nreceived:\n'%s'", src,
	expected, output.c_str());
	}
	REPORTER_ASSERT(r, output == skExpected);
	}
	}

	static void test(skiatest::Reporter* r, const GrShaderCaps& caps, const char* src,
	const char* expected, SkSL::Program::Kind kind = SkSL::Program::kFragment_Kind) {
	SkSL::Program::Settings settings;
	settings.fCaps = &caps;
	SkSL::Program::Inputs inputs;
	test(r, settings, src, expected, &inputs, kind);
	}

	DEF_TEST(SkSLMetalHelloWorld, r) {
	test(r, *SkSL::ShaderCapsFactory::Default(),
	"void main() { sk_FragColor = half4(0.75); }",
	"#include <metal_stdlib>\n"
	"#include <simd/simd.h>\n"
	"using namespace metal;\n"
	"struct Inputs {\n"
	"};\n"
	"struct Outputs {\n"
	" float4 sk_FragColor [[color(0)]];\n"
	"};\n"
	"fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {\n"
	" Outputs _outputStruct;\n"
	" thread Outputs* _out = &_outputStruct;\n"
	" _out->sk_FragColor = float4(0.75);\n"
	" return *_out;\n"
	"}\n");
	}

	DEF_TEST(SkSLMetal2x2MatrixCopyFromFloat2x2, r) {
	test(r, *SkSL::ShaderCapsFactory::Default(),
	R"__SkSL__(
	void main() {
	float2x2 m1 = float2x2(float2(1, 2), float2(3, 4));
	float2x2 m2 = m1;
	float2x2 m3 = float2x2(m1);
	sk_FragColor = half4(half(m1[0][0] + m2[0][0] + m3[0][0]));
	})__SkSL__",
	R"__MSL__(#include <metal_stdlib>
	#include <simd/simd.h>
	using namespace metal;
	struct Inputs {
	};
	struct Outputs {
	float4 sk_FragColor [[color(0)]];
	};
	fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
	Outputs _outputStruct;
	thread Outputs* _out = &_outputStruct;
	_out->sk_FragColor = float4((float2x2(float2(1.0, 2.0), float2(3.0, 4.0))[0][0] + float2x2(float2(1.0, 2.0), float2(3.0, 4.0))[0][0]) + float2x2(float2(1.0, 2.0), float2(3.0, 4.0))[0][0]);
	return *_out;
	}
	)__MSL__");
	}

	DEF_TEST(SkSLMetal2x2MatrixCopyFromConstantPropagatedFloat4, r) {
	test(r, *SkSL::ShaderCapsFactory::Default(),
	R"__SkSL__(
	void main() {
	float2x2 m1 = float2x2(float4(1, 2, 3, 4));
	float2x2 m2 = m1;
	float2x2 m3 = float2x2(m1);
	sk_FragColor = half4(half(m1[0][0] + m2[0][0] + m3[0][0]));
	})__SkSL__",
	R"__MSL__(#include <metal_stdlib>
	#include <simd/simd.h>
	using namespace metal;
	struct Inputs {
	};
	struct Outputs {
	float4 sk_FragColor [[color(0)]];
	};
	float2x2 float2x2_from_float4(float4 x0) {
	return float2x2(float2(x0[0], x0[1]), float2(x0[2], x0[3]));
	}
	fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
	Outputs _outputStruct;
	thread Outputs* _out = &_outputStruct;
	_out->sk_FragColor = float4((float2x2_from_float4(float4(1.0, 2.0, 3.0, 4.0))[0][0] + float2x2_from_float4(float4(1.0, 2.0, 3.0, 4.0))[0][0]) + float2x2_from_float4(float4(1.0, 2.0, 3.0, 4.0))[0][0]);
	return *_out;
	}
	)__MSL__");
	}

	DEF_TEST(SkSLMetalCastMat2x2ToMat3x3, r) {
	test(r, *SkSL::ShaderCapsFactory::Default(),
	R"__SkSL__(
	void main() {
	float3x3 a = float3x3(1);
	float3x3 b = float3x3(float2x2(1));
	sk_FragColor.x = (a[0] == b[0]) ? 0 : 1;
	}
	)__SkSL__",
	R"__MSL__(#include <metal_stdlib>
	#include <simd/simd.h>
	using namespace metal;
	struct Inputs {
	};
	struct Outputs {
	float4 sk_FragColor [[color(0)]];
	};
	float3x3 float3x3_from_float2x2(float2x2 x0) {
	return float3x3(float3(x0[0].xy, 0.0), float3(x0[1].xy, 0.0), float3(0.0, 0.0, 1.0));
	}
	fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
	Outputs _outputStruct;
	thread Outputs* _out = &_outputStruct;
	_out->sk_FragColor.x = float(all(float3x3(1.0)[0] == float3x3_from_float2x2(float2x2(1.0))[0]) ? 0 : 1);
	return *_out;
	}
	)__MSL__");
	}

	DEF_TEST(SkSLMetalCastMat2x3ToMat4x4, r) {
	test(r, *SkSL::ShaderCapsFactory::Default(),
	R"__SkSL__(
	void main() {
	float4x4 a = float4x4(6);
	float4x4 b = float4x4(float2x3(7));
	sk_FragColor.x = (a[1] == b[1]) ? 0 : 1;
	}
	)__SkSL__",
	R"__MSL__(#include <metal_stdlib>
	#include <simd/simd.h>
	using namespace metal;
	struct Inputs {
	};
	struct Outputs {
	float4 sk_FragColor [[color(0)]];
	};
	float4x4 float4x4_from_float2x3(float2x3 x0) {
	return float4x4(float4(x0[0].xyz, 0.0), float4(x0[1].xyz, 0.0), float4(0.0, 0.0, 1.0, 0.0), float4(0.0, 0.0, 0.0, 1.0));
	}
	fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
	Outputs _outputStruct;
	thread Outputs* _out = &_outputStruct;
	_out->sk_FragColor.x = float(all(float4x4(6.0)[1] == float4x4_from_float2x3(float2x3(7.0))[1]) ? 0 : 1);
	return *_out;
	}
	)__MSL__");
	}

	DEF_TEST(SkSLMetalCastMat4x4ToMat3x4, r) {
	test(r, *SkSL::ShaderCapsFactory::Default(),
	R"__SkSL__(
	void main() {
	float3x4 a = float3x4(1);
	float3x4 b = float3x4(float4x4(1));
	sk_FragColor.x = (a[0] == b[0]) ? 0 : 1;
	}
	)__SkSL__",
	R"__MSL__(#include <metal_stdlib>
	#include <simd/simd.h>
	using namespace metal;
	struct Inputs {
	};
	struct Outputs {
	float4 sk_FragColor [[color(0)]];
	};
	float3x4 float3x4_from_float4x4(float4x4 x0) {
	return float3x4(float4(x0[0].xyzw), float4(x0[1].xyzw), float4(x0[2].xyzw));
	}
	fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
	Outputs _outputStruct;
	thread Outputs* _out = &_outputStruct;
	_out->sk_FragColor.x = float(all(float3x4(1.0)[0] == float3x4_from_float4x4(float4x4(1.0))[0]) ? 0 : 1);
	return *_out;
	}
	)__MSL__");
	}

	DEF_TEST(SkSLMetalCastMat4x4ToMat4x3, r) {
	test(r, *SkSL::ShaderCapsFactory::Default(),
	R"__SkSL__(
	void main() {
	float4x3 a = float4x3(1);
	float4x3 b = float4x3(float4x4(1));
	sk_FragColor.x = (a[0] == b[0]) ? 0 : 1;
	}
	)__SkSL__",
	R"__MSL__(#include <metal_stdlib>
	#include <simd/simd.h>
	using namespace metal;
	struct Inputs {
	};
	struct Outputs {
	float4 sk_FragColor [[color(0)]];
	};
	float4x3 float4x3_from_float4x4(float4x4 x0) {
	return float4x3(float3(x0[0].xyz), float3(x0[1].xyz), float3(x0[2].xyz), float3(x0[3].xyz));
	}
	fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
	Outputs _outputStruct;
	thread Outputs* _out = &_outputStruct;
	_out->sk_FragColor.x = float(all(float4x3(1.0)[0] == float4x3_from_float4x4(float4x4(1.0))[0]) ? 0 : 1);
	return *_out;
	}
	)__MSL__");
	}

	DEF_TEST(SkSLMetalMatrices, r) {
	test(r, *SkSL::ShaderCapsFactory::Default(),
	R"__SkSL__(
	void main() {
	float2x2 m1 = float2x2(float4(1, 2, 3, 4));
	float2x2 m2 = float2x2(float4(0));
	float2x2 m3 = float2x2(m1);
	float2x2 m4 = float2x2(1);
	float2x2 m5 = float2x2(m1[0][0]);
	float2x2 m6 = float2x2(1, 2, 3, 4);
	float2x2 m7 = float2x2(5, float3(6, 7, 8));
	float3x2 m8 = float3x2(float2(1, 2), 3, float3(4, 5, 6));
	float3x3 m9 = float3x3(1);
	float4x4 m10 = float4x4(1);
	float4x4 m11 = float4x4(2);
	sk_FragColor = half4(half(m1[0][0] + m2[0][0] + m3[0][0] + m4[0][0] + m5[0][0] +
	m6[0][0] + m7[0][0] + m8[0][0] + m9[0][0] + m10[0][0] + m11[0][0]));
	})__SkSL__",
	R"__MSL__(#include <metal_stdlib>
	#include <simd/simd.h>
	using namespace metal;
	struct Inputs {
	};
	struct Outputs {
	float4 sk_FragColor [[color(0)]];
	};
	float2x2 float2x2_from_float4(float4 x0) {
	return float2x2(float2(x0[0], x0[1]), float2(x0[2], x0[3]));
	}
	float2x2 float2x2_from_float_float3(float x0, float3 x1) {
	return float2x2(float2(x0, x1[0]), float2(x1[1], x1[2]));
	}
	float3x2 float3x2_from_float2_float_float3(float2 x0, float x1, float3 x2) {
	return float3x2(float2(x0[0], x0[1]), float2(x1, x2[0]), float2(x2[1], x2[2]));
	}
	fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
	Outputs _outputStruct;
	thread Outputs* _out = &_outputStruct;
	float2x2 m5 = float2x2(float2x2_from_float4(float4(1.0, 2.0, 3.0, 4.0))[0][0]);
	_out->sk_FragColor = float4((((((((((float2x2_from_float4(float4(1.0, 2.0, 3.0, 4.0))[0][0] + float2x2_from_float4(float4(0.0))[0][0]) + float2x2_from_float4(float4(1.0, 2.0, 3.0, 4.0))[0][0]) + float2x2(1.0)[0][0]) + m5[0][0]) + float2x2(float2(1.0, 2.0), float2(3.0, 4.0))[0][0]) + float2x2_from_float_float3(5.0, float3(6.0, 7.0, 8.0))[0][0]) + float3x2_from_float2_float_float3(float2(1.0, 2.0), 3.0, float3(4.0, 5.0, 6.0))[0][0]) + float3x3(1.0)[0][0]) + float4x4(1.0)[0][0]) + float4x4(2.0)[0][0]);
	return *_out;
	}
	)__MSL__");
	}

	DEF_TEST(SkSLMetalConstantSwizzle, r) {
	test(r, *SkSL::ShaderCapsFactory::Default(),
	"void main() {"
	"sk_FragColor = half4(0.5).rgb1;"
	"}",
	"#include <metal_stdlib>\n"
	"#include <simd/simd.h>\n"
	"using namespace metal;\n"
	"struct Inputs {\n"
	"};\n"
	"struct Outputs {\n"
	" float4 sk_FragColor [[color(0)]];\n"
	"};\n"
	"fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {\n"
	" Outputs _outputStruct;\n"
	" thread Outputs* _out = &_outputStruct;\n"
	" _out->sk_FragColor = float4(float4(0.5).xyz, 1);\n"
	" return *_out;\n"
	"}\n");
	}

	DEF_TEST(SkSLMetalNumericGlobals, r) {
	test(r, *SkSL::ShaderCapsFactory::Default(),
	R"__SkSL__(
	half attr1;
	int attr2 = 123;
	float attr3;
	half4 attr4 = half4(4, 5, 6, 7);
	void main()
	{
	sk_FragColor = half4(attr1, attr2, half(attr3), attr4.x);
	}
	)__SkSL__",
	R"__MSL__(#include <metal_stdlib>
	#include <simd/simd.h>
	using namespace metal;
	struct Inputs {
	};
	struct Outputs {
	float4 sk_FragColor [[color(0)]];
	};
	struct Globals {
	float attr1;
	int attr2;
	float attr3;
	float4 attr4;
	};



	fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
	Globals globalStruct{{}, 123, {}, float4(4.0, 5.0, 6.0, 7.0)};
	thread Globals* _globals = &globalStruct;
	(void)_globals;
	Outputs _outputStruct;
	thread Outputs* _out = &_outputStruct;
	_out->sk_FragColor = float4(_globals->attr1, float(_globals->attr2), _globals->attr3, _globals->attr4.x);
	return *_out;
	}
	)__MSL__");
	}

	DEF_TEST(SkSLMetalSamplerGlobals, r) {
	test(r, *SkSL::ShaderCapsFactory::Default(),
	R"__SkSL__(
	layout(binding=1) uniform sampler2D texA;
	layout(binding=0) uniform sampler2D texB;
	void main()
	{
	sk_FragColor = sample(texA, half2(0)) * sample(texB, half2(0));
	}
	)__SkSL__",
	R"__MSL__(#include <metal_stdlib>
	#include <simd/simd.h>
	using namespace metal;
	struct Inputs {
	};
	struct Outputs {
	float4 sk_FragColor [[color(0)]];
	};
	struct Globals {
	texture2d<float> texA;
	sampler texASmplr;
	texture2d<float> texB;
	sampler texBSmplr;
	};

	fragment Outputs fragmentMain(Inputs _in [[stage_in]], texture2d<float> texA[[texture(1)]], sampler texASmplr[[sampler(1)]], texture2d<float> texB[[texture(0)]], sampler texBSmplr[[sampler(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
	Globals globalStruct{texA, texASmplr, texB, texBSmplr};
	thread Globals* _globals = &globalStruct;
	(void)_globals;
	Outputs _outputStruct;
	thread Outputs* _out = &_outputStruct;
	_out->sk_FragColor = _globals->texA.sample(_globals->texASmplr, float2(0.0)) * _globals->texB.sample(_globals->texBSmplr, float2(0.0));
	return *_out;
	}
	)__MSL__");
	}