/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkSLCompiler.h"
#include "Test.h"
static void test(skiatest::Reporter* r, const char* src, const GrShaderCaps& caps,
std::vector<const char*> expectedH, std::vector<const char*> expectedCPP) {
SkSL::Program::Settings settings;
settings.fCaps = ∩︀
SkSL::Compiler compiler;
SkSL::StringStream output;
std::unique_ptr<SkSL::Program> program = compiler.convertProgram(
SkSL::Program::kFragmentProcessor_Kind,
SkSL::String(src),
settings);
if (!program) {
SkDebugf("Unexpected error compiling %s\n%s", src, compiler.errorText().c_str());
return;
}
REPORTER_ASSERT(r, program);
bool success = compiler.toH(*program, "Test", output);
if (!success) {
SkDebugf("Unexpected error compiling %s\n%s", src, compiler.errorText().c_str());
}
REPORTER_ASSERT(r, success);
if (success) {
for (const char* expected : expectedH) {
bool found = strstr(output.str().c_str(), expected);
if (!found) {
SkDebugf("HEADER MISMATCH:\nsource:\n%s\n\nexpected:\n'%s'\n\nreceived:\n'%s'", src,
expected, output.str().c_str());
}
REPORTER_ASSERT(r, found);
}
}
output.reset();
success = compiler.toCPP(*program, "Test", output);
if (!success) {
SkDebugf("Unexpected error compiling %s\n%s", src, compiler.errorText().c_str());
}
REPORTER_ASSERT(r, success);
if (success) {
for (const char* expected : expectedCPP) {
bool found = strstr(output.str().c_str(), expected);
if (!found) {
SkDebugf("CPP MISMATCH:\nsource:\n%s\n\nexpected:\n'%s'\n\nreceived:\n'%s'", src,
expected, output.str().c_str());
}
REPORTER_ASSERT(r, found);
}
}
}
DEF_TEST(SkSLFPHelloWorld, r) {
test(r,
"/* HEADER */"
"void main() {"
"sk_OutColor = half4(1);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"/* HEADER */\n"
"\n"
"/**************************************************************************************************\n"
" *** This file was autogenerated from GrTest.fp; do not modify.\n"
" **************************************************************************************************/\n"
"#ifndef GrTest_DEFINED\n"
"#define GrTest_DEFINED\n"
"#include \"SkTypes.h\"\n"
"#include \"GrFragmentProcessor.h\"\n"
"#include \"GrCoordTransform.h\"\n"
"class GrTest : public GrFragmentProcessor {\n"
"public:\n"
" static std::unique_ptr<GrFragmentProcessor> Make() {\n"
" return std::unique_ptr<GrFragmentProcessor>(new GrTest());\n"
" }\n"
" GrTest(const GrTest& src);\n"
" std::unique_ptr<GrFragmentProcessor> clone() const override;\n"
" const char* name() const override { return \"Test\"; }\n"
"private:\n"
" GrTest()\n"
" : INHERITED(kGrTest_ClassID, kNone_OptimizationFlags) {\n"
" }\n"
" GrGLSLFragmentProcessor* onCreateGLSLInstance() const override;\n"
" void onGetGLSLProcessorKey(const GrShaderCaps&,GrProcessorKeyBuilder*) "
"const override;\n"
" bool onIsEqual(const GrFragmentProcessor&) const override;\n"
" GR_DECLARE_FRAGMENT_PROCESSOR_TEST\n"
" typedef GrFragmentProcessor INHERITED;\n"
"};\n"
"#endif\n"
},
{
"/* HEADER */\n"
"\n"
"/**************************************************************************************************\n"
" *** This file was autogenerated from GrTest.fp; do not modify.\n"
" **************************************************************************************************/\n"
"#include \"GrTest.h\"\n"
"#include \"glsl/GrGLSLFragmentProcessor.h\"\n"
"#include \"glsl/GrGLSLFragmentShaderBuilder.h\"\n"
"#include \"glsl/GrGLSLProgramBuilder.h\"\n"
"#include \"GrTexture.h\"\n"
"#include \"SkSLCPP.h\"\n"
"#include \"SkSLUtil.h\"\n"
"class GrGLSLTest : public GrGLSLFragmentProcessor {\n"
"public:\n"
" GrGLSLTest() {}\n"
" void emitCode(EmitArgs& args) override {\n"
" GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;\n"
" const GrTest& _outer = args.fFp.cast<GrTest>();\n"
" (void) _outer;\n"
" fragBuilder->codeAppendf(\"%s = half4(1.0);\\n\", args.fOutputColor);\n"
" }\n"
"private:\n"
" void onSetData(const GrGLSLProgramDataManager& pdman, "
"const GrFragmentProcessor& _proc) override {\n"
" }\n"
"};\n"
"GrGLSLFragmentProcessor* GrTest::onCreateGLSLInstance() const {\n"
" return new GrGLSLTest();\n"
"}\n"
"void GrTest::onGetGLSLProcessorKey(const GrShaderCaps& caps, "
"GrProcessorKeyBuilder* b) const {\n"
"}\n"
"bool GrTest::onIsEqual(const GrFragmentProcessor& other) const {\n"
" const GrTest& that = other.cast<GrTest>();\n"
" (void) that;\n"
" return true;\n"
"}\n"
"GrTest::GrTest(const GrTest& src)\n"
": INHERITED(kGrTest_ClassID, src.optimizationFlags()) {\n"
"}\n"
"std::unique_ptr<GrFragmentProcessor> GrTest::clone() const {\n"
" return std::unique_ptr<GrFragmentProcessor>(new GrTest(*this));\n"
"}\n"
});
}
DEF_TEST(SkSLFPInput, r) {
test(r,
"in half2 point;"
"void main() {"
"sk_OutColor = half4(point, point);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"const SkPoint& point() const { return fPoint; }",
"static std::unique_ptr<GrFragmentProcessor> Make(SkPoint point) {",
"return std::unique_ptr<GrFragmentProcessor>(new GrTest(point));",
"GrTest(SkPoint point)",
", fPoint(point)"
},
{
"fragBuilder->codeAppendf(\"%s = half4(half2(%f, %f), half2(%f, %f));\\n\", "
"args.fOutputColor, _outer.point().fX, _outer.point().fY, "
"_outer.point().fX, _outer.point().fY);",
"if (fPoint != that.fPoint) return false;"
});
}
DEF_TEST(SkSLFPUniform, r) {
test(r,
"uniform half4 color;"
"void main() {"
"sk_OutColor = color;"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"static std::unique_ptr<GrFragmentProcessor> Make()"
},
{
"fColorVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHalf4_GrSLType, "
"kDefault_GrSLPrecision, \"color\");",
});
}
// SkSLFPInUniform tests the simplest plumbing case, default type, no tracking
// with a setUniform template that supports inlining the value call with no
// local variable.
DEF_TEST(SkSLFPInUniform, r) {
test(r,
"in uniform half4 color;"
"void main() {"
"sk_OutColor = color;"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"static std::unique_ptr<GrFragmentProcessor> Make(SkRect color) {",
},
{
"fColorVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHalf4_GrSLType, "
"kDefault_GrSLPrecision, \"color\");",
"pdman.set4fv(fColorVar, 1, reinterpret_cast<const float*>(&(_outer.color())));"
});
}
// As above, but tests in uniform's ability to override the default ctype.
DEF_TEST(SkSLFPInUniformCType, r) {
test(r,
"layout(ctype=SkPMColor4f) in uniform half4 color;"
"void main() {"
"sk_OutColor = color;"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"static std::unique_ptr<GrFragmentProcessor> Make(SkPMColor4f color) {",
},
{
"fColorVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHalf4_GrSLType, "
"kDefault_GrSLPrecision, \"color\");",
"pdman.set4fv(fColorVar, 1, (_outer.color()).vec());"
});
}
// Add state tracking to the default typed SkRect <-> half4 uniform. But since
// it now has to track state, the value inlining previously done for the
// setUniform call is removed in favor of a local variable.
DEF_TEST(SkSLFPTrackedInUniform, r) {
test(r,
"layout(tracked) in uniform half4 color;"
"void main() {"
"sk_OutColor = color;"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"static std::unique_ptr<GrFragmentProcessor> Make(SkRect color) {",
},
{
"SkRect fColorPrev = SkRect::MakeEmpty();",
"fColorVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHalf4_GrSLType, "
"kDefault_GrSLPrecision, \"color\");",
"const SkRect& colorValue = _outer.color();",
"if (fColorPrev.isEmpty() || fColorPrev != colorValue) {",
"fColorPrev = colorValue;",
"pdman.set4fv(fColorVar, 1, reinterpret_cast<const float*>(&colorValue));"
});
}
// Test the case where the template does not support variable inlining in
// setUniform (i.e. it references the value multiple times).
DEF_TEST(SkSLFPNonInlinedInUniform, r) {
test(r,
"in uniform half2 point;"
"void main() {"
"sk_OutColor = half4(point, point);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"static std::unique_ptr<GrFragmentProcessor> Make(SkPoint point) {",
},
{
"fPointVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHalf2_GrSLType, "
"kDefault_GrSLPrecision, \"point\");",
"const SkPoint& pointValue = _outer.point();",
"pdman.set2f(fPointVar, pointValue.fX, pointValue.fY);"
});
}
// Test handling conditional uniforms (that use when= in layout), combined with
// state tracking and custom ctypes to really put the code generation through its paces.
DEF_TEST(SkSLFPConditionalInUniform, r) {
test(r,
"in bool test;"
"layout(ctype=SkPMColor4f, tracked, when=test) in uniform half4 color;"
"void main() {"
" if (test) {"
" sk_OutColor = color;"
" } else {"
" sk_OutColor = half4(1);"
" }"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"static std::unique_ptr<GrFragmentProcessor> Make(bool test, SkPMColor4f color) {",
},
{
"SkPMColor4f fColorPrev = {SK_FloatNaN, SK_FloatNaN, SK_FloatNaN, SK_FloatNaN}",
"auto test = _outer.test();",
"if (test) {",
"fColorVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHalf4_GrSLType, "
"kDefault_GrSLPrecision, \"color\");",
"if (fColorVar.isValid()) {",
"const SkPMColor4f& colorValue = _outer.color();",
"if (fColorPrev != colorValue) {",
"fColorPrev = colorValue;",
"pdman.set4fv(fColorVar, 1, colorValue.vec());"
});
}
DEF_TEST(SkSLFPSections, r) {
test(r,
"@header { header section }"
"void main() {"
"sk_OutColor = half4(1);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"header section"
},
{});
test(r,
"@class { class section }"
"void main() {"
"sk_OutColor = half4(1);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"class GrTest : public GrFragmentProcessor {\n"
"public:\n"
" class section"
},
{});
test(r,
"@cpp { cpp section }"
"void main() {"
"sk_OutColor = half4(1);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{},
{"cpp section"});
test(r,
"@constructorParams { int x, float y, std::vector<float> z }"
"in float w;"
"void main() {"
"sk_OutColor = float4(1);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"Make(float w, int x, float y, std::vector<float> z )",
"return std::unique_ptr<GrFragmentProcessor>(new GrTest(w, x, y, z));",
"GrTest(float w, int x, float y, std::vector<float> z )",
", fW(w) {"
},
{});
test(r,
"@constructor { constructor section }"
"void main() {"
"sk_OutColor = half4(1);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"private:\n constructor section"
},
{});
test(r,
"@initializers { initializers section }"
"void main() {"
"sk_OutColor = half4(1);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
": INHERITED(kGrTest_ClassID, kNone_OptimizationFlags)\n , initializers section"
},
{});
test(r,
"half x = 10;"
"@emitCode { fragBuilder->codeAppendf(\"half y = %d\\n\", x * 2); }"
"void main() {"
"sk_OutColor = half4(1);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{},
{
"x = 10.0;\n"
" fragBuilder->codeAppendf(\"half y = %d\\n\", x * 2);"
});
test(r,
"@fields { fields section }"
"@clone { }"
"void main() {"
"sk_OutColor = half4(1);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"GR_DECLARE_FRAGMENT_PROCESSOR_TEST\n"
" fields section typedef GrFragmentProcessor INHERITED;"
},
{});
test(r,
"@make { make section }"
"void main() {"
"sk_OutColor = half4(1);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"public:\n"
" make section"
},
{});
test(r,
"uniform half calculated;"
"in half provided;"
"@setData(varName) { varName.set1f(calculated, provided * 2); }"
"void main() {"
"sk_OutColor = half4(1);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{},
{
"void onSetData(const GrGLSLProgramDataManager& varName, "
"const GrFragmentProcessor& _proc) override {\n",
"UniformHandle& calculated = fCalculatedVar;",
"auto provided = _outer.provided();",
"varName.set1f(calculated, provided * 2);"
});
test(r,
"@test(testDataName) { testDataName section }"
"void main() {"
"sk_OutColor = half4(1);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{},
{
"#if GR_TEST_UTILS\n"
"std::unique_ptr<GrFragmentProcessor> GrTest::TestCreate(GrProcessorTestData* testDataName) {\n"
" testDataName section }\n"
"#endif"
});
}
DEF_TEST(SkSLFPTransformedCoords, r) {
test(r,
"void main() {"
"sk_OutColor = half4(sk_TransformedCoords2D[0], sk_TransformedCoords2D[0]);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{},
{
"SkString sk_TransformedCoords2D_0 = "
"fragBuilder->ensureCoords2D(args.fTransformedCoords[0]);",
"fragBuilder->codeAppendf(\"%s = half4(%s, %s);\\n\", args.fOutputColor, "
"sk_TransformedCoords2D_0.c_str(), sk_TransformedCoords2D_0.c_str());"
});
}
DEF_TEST(SkSLFPLayoutWhen, r) {
test(r,
"layout(when=someExpression(someOtherExpression())) uniform half sometimes;"
"void main() {"
"}",
*SkSL::ShaderCapsFactory::Default(),
{},
{
"if (someExpression(someOtherExpression())) {\n"
" fSometimesVar = args.fUniformHandler->addUniform"
});
}
DEF_TEST(SkSLFPChildProcessors, r) {
test(r,
"in fragmentProcessor child1;"
"in fragmentProcessor child2;"
"void main() {"
" sk_OutColor = process(child1) * process(child2);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"this->registerChildProcessor(std::move(child1));",
"this->registerChildProcessor(std::move(child2));"
},
{
"SkString _child0(\"_child0\");",
"this->emitChild(0, &_child0, args);",
"SkString _child1(\"_child1\");",
"this->emitChild(1, &_child1, args);",
"this->registerChildProcessor(src.childProcessor(0).clone());",
"this->registerChildProcessor(src.childProcessor(1).clone());"
});
}
DEF_TEST(SkSLFPChildProcessorsWithInput, r) {
test(r,
"in fragmentProcessor child1;"
"in fragmentProcessor child2;"
"void main() {"
" half4 childIn = sk_InColor;"
" half4 childOut1 = process(child1, childIn);"
" half4 childOut2 = process(child2, childOut1);"
" sk_OutColor = childOut2;"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"this->registerChildProcessor(std::move(child1));",
"this->registerChildProcessor(std::move(child2));"
},
{
"SkString _input0(\"childIn\");",
"SkString _child0(\"_child0\");",
"this->emitChild(0, _input0.c_str(), &_child0, args);",
"SkString _input1(\"childOut1\");",
"SkString _child1(\"_child1\");",
"this->emitChild(1, _input1.c_str(), &_child1, args);",
"this->registerChildProcessor(src.childProcessor(0).clone());",
"this->registerChildProcessor(src.childProcessor(1).clone());"
});
}
DEF_TEST(SkSLFPChildProcessorWithInputExpression, r) {
test(r,
"in fragmentProcessor child;"
"void main() {"
" sk_OutColor = process(child, sk_InColor * half4(0.5));"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"this->registerChildProcessor(std::move(child));",
},
{
"SkString _input0 = SkStringPrintf(\"%s * half4(0.5)\", args.fInputColor);",
"SkString _child0(\"_child0\");",
"this->emitChild(0, _input0.c_str(), &_child0, args);",
"this->registerChildProcessor(src.childProcessor(0).clone());",
});
}
DEF_TEST(SkSLFPNestedChildProcessors, r) {
test(r,
"in fragmentProcessor child1;"
"in fragmentProcessor child2;"
"void main() {"
" sk_OutColor = process(child2, sk_InColor * process(child1, sk_InColor * half4(0.5)));"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"this->registerChildProcessor(std::move(child1));",
"this->registerChildProcessor(std::move(child2));"
},
{
"SkString _input0 = SkStringPrintf(\"%s * half4(0.5)\", args.fInputColor);",
"SkString _child0(\"_child0\");",
"this->emitChild(0, _input0.c_str(), &_child0, args);",
"SkString _input1 = SkStringPrintf(\"%s * %s\", args.fInputColor, _child0.c_str());",
"SkString _child1(\"_child1\");",
"this->emitChild(1, _input1.c_str(), &_child1, args);",
"this->registerChildProcessor(src.childProcessor(0).clone());",
"this->registerChildProcessor(src.childProcessor(1).clone());"
});
}
DEF_TEST(SkSLFPChildFPAndGlobal, r) {
test(r,
"in fragmentProcessor child;"
"bool hasCap = sk_Caps.externalTextureSupport;"
"void main() {"
" if (hasCap) {"
" sk_OutColor = process(child, sk_InColor);"
" } else {"
" sk_OutColor = half4(1);"
" }"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"this->registerChildProcessor(std::move(child));"
},
{
"hasCap = sk_Caps.externalTextureSupport;",
"fragBuilder->codeAppendf(\"bool hasCap = %s;\\nif (hasCap) {\", "
"(hasCap ? \"true\" : \"false\"));",
"SkString _input0 = SkStringPrintf(\"%s\", args.fInputColor);",
"SkString _child0(\"_child0\");",
"this->emitChild(0, _input0.c_str(), &_child0, args);",
"fragBuilder->codeAppendf(\"\\n %s = %s;\\n} else {\\n %s = half4(1.0);\\n}"
"\\n\", args.fOutputColor, _child0.c_str(), args.fOutputColor);",
"this->registerChildProcessor(src.childProcessor(0).clone());"
});
}
DEF_TEST(SkSLFPChildProcessorInlineFieldAccess, r) {
test(r,
"in fragmentProcessor child;"
"void main() {"
" if (child.preservesOpaqueInput) {"
" sk_OutColor = process(child, sk_InColor);"
" } else {"
" sk_OutColor = half4(1);"
" }"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"this->registerChildProcessor(std::move(child));"
},
{
"fragBuilder->codeAppendf(\"if (%s) {\", "
"(_outer.childProcessor(0).preservesOpaqueInput() ? \"true\" : \"false\"));",
"SkString _input0 = SkStringPrintf(\"%s\", args.fInputColor);",
"SkString _child0(\"_child0\");",
"this->emitChild(0, _input0.c_str(), &_child0, args);",
"fragBuilder->codeAppendf(\"\\n %s = %s;\\n} else {\\n %s = half4(1.0);\\n}\\n\""
", args.fOutputColor, _child0.c_str(), args.fOutputColor);",
"this->registerChildProcessor(src.childProcessor(0).clone());"
});
}
DEF_TEST(SkSLFPChildProcessorFieldAccess, r) {
test(r,
"in fragmentProcessor child;"
"bool opaque = child.preservesOpaqueInput;"
"void main() {"
" if (opaque) {"
" sk_OutColor = process(child);"
" } else {"
" sk_OutColor = half4(0.5);"
" }"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"this->registerChildProcessor(std::move(child));"
},
{
"opaque = _outer.childProcessor(0).preservesOpaqueInput();",
"fragBuilder->codeAppendf(\"bool opaque = %s;\\nif (opaque) {\", "
"(opaque ? \"true\" : \"false\"));",
"SkString _child0(\"_child0\");",
"this->emitChild(0, &_child0, args);",
"fragBuilder->codeAppendf(\"\\n %s = %s;\\n} else {\\n %s = half4(0.5);\\n}\\n\""
", args.fOutputColor, _child0.c_str(), args.fOutputColor);",
"this->registerChildProcessor(src.childProcessor(0).clone());"
});
}