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skia2/tests/SkSLFPTest.cpp
John Stiles 7571f9e490 Replace 'typedef xxxxx INHERITED' with 'using INHERITED = xxxx;'. 
Mechanically updated via Xcode "Replace Regular Expression":

  typedef (.*) INHERITED;
    -->
  using INHERITED = $1;

The ClangTidy approach generated an even larger CL which would have
required a significant amount of hand-tweaking to be usable.

Change-Id: I671dc9d9efdf6d60151325c8d4d13fad7e10a15b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/314999
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2020-09-03 03:41:26 +00:00

1358 lines
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/*
* 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 "src/sksl/SkSLCompiler.h"
#include "src/sksl/SkSLStringStream.h"
#include "tests/Test.h"
static void test(skiatest::Reporter* r, const GrShaderCaps& caps, const char* src,
std::vector<const char*> expectedH, std::vector<const char*> expectedCPP) {
SkSL::Program::Settings settings;
settings.fCaps = &caps;
settings.fRemoveDeadFunctions = false;
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\n"
"header expected:\n'%s'\n\n"
"header received:\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\n"
"cpp expected:\n'%s'\n\n"
"cpp received:\n'%s'",
src, expected, output.str().c_str());
}
REPORTER_ASSERT(r, found);
}
}
}
static void test_failure(skiatest::Reporter* r, const char* src, const char* error) {
SkSL::Compiler compiler;
SkSL::Program::Settings settings;
sk_sp<GrShaderCaps> caps = SkSL::ShaderCapsFactory::Default();
settings.fCaps = caps.get();
std::unique_ptr<SkSL::Program> program = compiler.convertProgram(
SkSL::Program::kFragmentProcessor_Kind,
SkSL::String(src),
settings);
if (!compiler.errorCount()) {
compiler.optimize(*program);
}
if (!compiler.errorCount()) {
SkSL::StringStream output;
compiler.toH(*program, "Test", output);
}
if (!compiler.errorCount()) {
SkSL::StringStream output;
compiler.toCPP(*program, "Test", output);
}
SkSL::String skError(error);
if (compiler.errorText() != skError) {
SkDebugf("SKSL ERROR:\n source: %s\n expected: %s received: %s",
src, error, compiler.errorText().c_str());
}
REPORTER_ASSERT(r, compiler.errorText() == skError);
}
DEF_TEST(SkSLFPHelloWorld, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
/* HELLO WORLD */
void main() {
sk_OutColor = half4(1);
}
)__SkSL__",
/*expectedH=*/{
R"__Header__(/* HELLO WORLD */
/**************************************************************************************************
*** This file was autogenerated from GrTest.fp; do not modify.
**************************************************************************************************/
#ifndef GrTest_DEFINED
#define GrTest_DEFINED
#include "include/core/SkM44.h"
#include "include/core/SkTypes.h"
#include "src/gpu/GrFragmentProcessor.h"
class GrTest : public GrFragmentProcessor {
public:
static std::unique_ptr<GrFragmentProcessor> Make() {
return std::unique_ptr<GrFragmentProcessor>(new GrTest());
}
GrTest(const GrTest& src);
std::unique_ptr<GrFragmentProcessor> clone() const override;
const char* name() const override { return "Test"; }
bool usesExplicitReturn() const override;
private:
GrTest()
: INHERITED(kGrTest_ClassID, kNone_OptimizationFlags) {
}
GrGLSLFragmentProcessor* onCreateGLSLInstance() const override;
void onGetGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override;
bool onIsEqual(const GrFragmentProcessor&) const override;
#if GR_TEST_UTILS
SkString onDumpInfo() const override;
#endif
GR_DECLARE_FRAGMENT_PROCESSOR_TEST
using INHERITED = GrFragmentProcessor;
};
#endif
)__Header__"
},
/*expectedCPP=*/{
R"__Cpp__(/* HELLO WORLD */
/**************************************************************************************************
*** This file was autogenerated from GrTest.fp; do not modify.
**************************************************************************************************/
#include "GrTest.h"
#include "src/core/SkUtils.h"
#include "src/gpu/GrTexture.h"
#include "src/gpu/glsl/GrGLSLFragmentProcessor.h"
#include "src/gpu/glsl/GrGLSLFragmentShaderBuilder.h"
#include "src/gpu/glsl/GrGLSLProgramBuilder.h"
#include "src/sksl/SkSLCPP.h"
#include "src/sksl/SkSLUtil.h"
class GrGLSLTest : public GrGLSLFragmentProcessor {
public:
GrGLSLTest() {}
void emitCode(EmitArgs& args) override {
GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
const GrTest& _outer = args.fFp.cast<GrTest>();
(void) _outer;
fragBuilder->codeAppendf(
R"SkSL(%s = half4(1.0);
)SkSL"
, args.fOutputColor);
}
private:
void onSetData(const GrGLSLProgramDataManager& pdman, const GrFragmentProcessor& _proc) override {
}
};
GrGLSLFragmentProcessor* GrTest::onCreateGLSLInstance() const {
return new GrGLSLTest();
}
void GrTest::onGetGLSLProcessorKey(const GrShaderCaps& caps, GrProcessorKeyBuilder* b) const {
}
bool GrTest::onIsEqual(const GrFragmentProcessor& other) const {
const GrTest& that = other.cast<GrTest>();
(void) that;
return true;
}
bool GrTest::usesExplicitReturn() const {
return false;
}
GrTest::GrTest(const GrTest& src)
: INHERITED(kGrTest_ClassID, src.optimizationFlags()) {
this->cloneAndRegisterAllChildProcessors(src);
}
std::unique_ptr<GrFragmentProcessor> GrTest::clone() const {
return std::make_unique<GrTest>(*this);
}
#if GR_TEST_UTILS
SkString GrTest::onDumpInfo() const {
return SkString();
}
#endif
)__Cpp__"
});
}
DEF_TEST(SkSLFPInputHalf2, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
in uniform half2 point;
void main() {
sk_OutColor = half4(point, point);
}
)__SkSL__",
/*expectedH=*/{
"static std::unique_ptr<GrFragmentProcessor> Make(SkPoint point) {",
"return std::unique_ptr<GrFragmentProcessor>(new GrTest(point));",
"GrTest(SkPoint point)",
", point(point)"
},
/*expectedCPP=*/{
R"__Cpp__(fragBuilder->codeAppendf(
R"SkSL(%s = half4(%s, %s);
)SkSL"
, args.fOutputColor, args.fUniformHandler->getUniformCStr(pointVar), args.fUniformHandler->getUniformCStr(pointVar));
)__Cpp__",
"if (point != that.point) return false;"
});
}
DEF_TEST(SkSLFPInputHalf1, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
layout(key) in half value;
void main() {
sk_OutColor = half4(value);
}
)__SkSL__",
/*expectedH=*/{
R"__Cpp__(static std::unique_ptr<GrFragmentProcessor> Make(float value) {
return std::unique_ptr<GrFragmentProcessor>(new GrTest(value));
}
)__Cpp__",
R"__Cpp__(GrTest(float value)
: INHERITED(kGrTest_ClassID, kNone_OptimizationFlags)
, value(value) {
}
)__Cpp__",
},
/*expectedCPP=*/{
R"__Cpp__(void GrTest::onGetGLSLProcessorKey(const GrShaderCaps& caps, GrProcessorKeyBuilder* b) const {
b->add32(sk_bit_cast<uint32_t>(value));
}
)__Cpp__",
R"__Cpp__(bool GrTest::onIsEqual(const GrFragmentProcessor& other) const {
const GrTest& that = other.cast<GrTest>();
(void) that;
if (value != that.value) return false;
return true;
}
)__Cpp__",
R"__Cpp__(GrTest::GrTest(const GrTest& src)
: INHERITED(kGrTest_ClassID, src.optimizationFlags())
, value(src.value) {
this->cloneAndRegisterAllChildProcessors(src);
}
)__Cpp__",
R"__Cpp__(std::unique_ptr<GrFragmentProcessor> GrTest::clone() const {
return std::make_unique<GrTest>(*this);
}
)__Cpp__",
R"__Cpp__(#if GR_TEST_UTILS
SkString GrTest::onDumpInfo() const {
return SkStringPrintf("(value=%f)", value);
}
)__Cpp__",
});
}
DEF_TEST(SkSLFPUseExplicitReturn, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
half4 main() {
return half4(0, 1, 0, 1);
}
)__SkSL__",
/*expectedH=*/{},
/*expectedCPP=*/{R"__Cpp__(
fragBuilder->codeAppendf(
R"SkSL(return half4(0.0, 1.0, 0.0, 1.0);
)SkSL"
);
)__Cpp__", R"__Cpp__(
bool GrTest::usesExplicitReturn() const {
return true;
}
)__Cpp__"});
}
DEF_TEST(SkSLFPBothExplicitReturnAndSkOutColor, r) {
test_failure(r,
R"__SkSL__(
half4 main() {
sk_OutColor = half4(1, 0, 1, 0);
return half4(0, 1, 0, 1);
}
)__SkSL__",
"error: 4: Fragment processors must not mix sk_OutColor and return statements\n\n"
"1 error\n");
}
DEF_TEST(SkSLFPCannotReturnWithSkOutColor, r) {
// We don't support returns with sk_OutColor at all, even when it conceptually makes sense.
// sk_OutColor is going away, so there's no need to add engineering effort to that path.
test_failure(r,
R"__SkSL__(
void main() {
sk_OutColor = half4(1, 0, 1, 0);
return;
}
)__SkSL__",
"error: 4: Fragment processors must not mix sk_OutColor and return statements\n\n"
"1 error\n");
}
DEF_TEST(SkSLFPUniform, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
uniform half4 color;
void main() {
sk_OutColor = color;
}
)__SkSL__",
/*expectedH=*/{
"static std::unique_ptr<GrFragmentProcessor> Make()"
},
/*expectedCPP=*/{
"colorVar = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag, "
"kHalf4_GrSLType, \"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,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
in uniform half4 color;
void main() {
sk_OutColor = color;
}
)__SkSL__",
/*expectedH=*/{
"static std::unique_ptr<GrFragmentProcessor> Make(SkRect color) {",
},
/*expectedCPP=*/{
"colorVar = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag, "
"kHalf4_GrSLType, \"color\");",
"pdman.set4fv(colorVar, 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,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
layout(ctype=SkPMColor4f) in uniform half4 color;
void main() {
sk_OutColor = color;
}
)__SkSL__",
/*expectedH=*/{
"static std::unique_ptr<GrFragmentProcessor> Make(SkPMColor4f color) {",
},
/*expectedCPP=*/{
"colorVar = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag, "
"kHalf4_GrSLType, \"color\");",
"pdman.set4fv(colorVar, 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,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
layout(tracked) in uniform half4 color;
void main() {
sk_OutColor = color;
}
)__SkSL__",
/*expectedH=*/{
"static std::unique_ptr<GrFragmentProcessor> Make(SkRect color) {",
},
/*expectedCPP=*/{
"SkRect colorPrev = SkRect::MakeEmpty();",
"colorVar = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag, "
"kHalf4_GrSLType, \"color\");",
"const SkRect& colorValue = _outer.color;",
"if (colorPrev.isEmpty() || colorPrev != colorValue) {",
"colorPrev = colorValue;",
"pdman.set4fv(colorVar, 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,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
in uniform half2 point;
void main() {
sk_OutColor = half4(point, point);
}
)__SkSL__",
/*expectedH=*/{
"static std::unique_ptr<GrFragmentProcessor> Make(SkPoint point) {",
},
/*expectedCPP=*/{
"pointVar = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag, "
"kHalf2_GrSLType, \"point\");",
"const SkPoint& pointValue = _outer.point;",
"pdman.set2f(pointVar, 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,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
layout(key) 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__",
/*expectedH=*/{
"static std::unique_ptr<GrFragmentProcessor> Make(bool test, SkPMColor4f color) {",
},
/*expectedCPP=*/{
"SkPMColor4f colorPrev = {SK_FloatNaN, SK_FloatNaN, SK_FloatNaN, SK_FloatNaN}",
"auto test = _outer.test;",
"if (test) {",
"colorVar = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag, "
"kHalf4_GrSLType, \"color\");",
"if (colorVar.isValid()) {",
"const SkPMColor4f& colorValue = _outer.color;",
"if (colorPrev != colorValue) {",
"colorPrev = colorValue;",
"pdman.set4fv(colorVar, 1, colorValue.vec());"
});
}
DEF_TEST(SkSLFPSections, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
@header { header section }
void main() {
sk_OutColor = half4(1);
}
)__SkSL__",
/*expectedH=*/{
"header section"
},
/*expectedCPP=*/{});
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
@class { class section }
void main() {
sk_OutColor = half4(1);
}
)__SkSL__",
/*expectedH=*/{
"class GrTest : public GrFragmentProcessor {\n"
"public:\n"
" class section"
},
/*expectedCPP=*/{});
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
@cpp { cpp section }
void main() {
sk_OutColor = half4(1);
}
)__SkSL__",
/*expectedH=*/{},
/*expectedCPP=*/{
"cpp section"
});
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
@constructorParams { int x, float y, std::vector<float> z }
in float w;
void main() {
sk_OutColor = half4(1);
}
)__SkSL__",
/*expectedH=*/{
"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 )",
", w(w) {"
},
/*expectedCPP=*/{});
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
@constructor { constructor section }
void main() {
sk_OutColor = half4(1);
}
)__SkSL__",
/*expectedH=*/{
"private:\n constructor section"
},
/*expectedCPP=*/{});
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
@initializers { initializers section }
void main() {
sk_OutColor = half4(1);
}
)__SkSL__",
/*expectedH=*/{
": INHERITED(kGrTest_ClassID, kNone_OptimizationFlags)\n , initializers section"
},
/*expectedCPP=*/{});
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
half x = 10;
@emitCode { fragBuilder->codeAppendf("half y = %d\n", x * 2); }
void main() {
sk_OutColor = half4(1);
}
)__SkSL__",
/*expectedH=*/{},
/*expectedCPP=*/{
"x = 10.0;\n"
" fragBuilder->codeAppendf(\"half y = %d\\n\", x * 2);"
});
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
@fields { fields section }
@clone { }
@dumpInfo { }
void main() {
sk_OutColor = half4(1);
}
)__SkSL__",
/*expectedH=*/{
"bool usesExplicitReturn() const override;\n"
" fields section private:"
},
/*expectedCPP=*/{});
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
@make { make section }
void main() {
sk_OutColor = half4(1);
}
)__SkSL__",
/*expectedH=*/{
"public:\n"
" make section"
},
/*expectedCPP=*/{});
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
uniform half calculated;
layout(key) in half provided;
@setData(varName) { varName.set1f(calculated, provided * 2); }
void main() {
sk_OutColor = half4(1);
}
)__SkSL__",
/*expectedH=*/{},
/*expectedCPP=*/{
"void onSetData(const GrGLSLProgramDataManager& varName, "
"const GrFragmentProcessor& _proc) override {\n",
"UniformHandle& calculated = calculatedVar;",
"auto provided = _outer.provided;",
"varName.set1f(calculated, provided * 2);"
});
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
@test(testDataName) { testDataName section }
void main() {
sk_OutColor = half4(1);
}
)__SkSL__",
/*expectedH=*/{},
/*expectedCPP=*/{
"#if GR_TEST_UTILS\n"
"std::unique_ptr<GrFragmentProcessor> GrTest::TestCreate(GrProcessorTestData* testDataName) {\n"
" testDataName section }\n"
"#endif"
});
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
@dumpInfo {dump all the fields}
void main() {
sk_OutColor = half4(1);
}
)__SkSL__",
/*expectedH=*/{},
/*expectedCPP=*/{
R"__Cpp__(#if GR_TEST_UTILS
SkString GrTest::onDumpInfo() const {
dump all the fields
}
#endif)__Cpp__"
});
}
DEF_TEST(SkSLFPMainCoords, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
void main(float2 coord) {
sk_OutColor = half4(coord, coord);
}
)__SkSL__",
/*expectedH=*/{
"this->setUsesSampleCoordsDirectly();"
},
/*expectedCPP=*/{
"fragBuilder->codeAppendf(\n"
"R\"SkSL(%s = half4(%s, %s);\n"
")SkSL\"\n"
", args.fOutputColor, args.fSampleCoord, args.fSampleCoord);"
});
}
DEF_TEST(SkSLFPLayoutWhen, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
layout(when=someExpression(someOtherExpression())) uniform half sometimes;
void main() {
}
)__SkSL__",
/*expectedH=*/{},
/*expectedCPP=*/{
"if (someExpression(someOtherExpression())) {\n"
" sometimesVar = args.fUniformHandler->addUniform"
});
}
DEF_TEST(SkSLFPChildProcessors, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
in fragmentProcessor child1;
in fragmentProcessor child2;
void main() {
sk_OutColor = sample(child1) * sample(child2);
}
)__SkSL__",
/*expectedH=*/{
"this->registerChild(std::move(child1), SkSL::SampleUsage::PassThrough());",
"this->registerChild(std::move(child2), SkSL::SampleUsage::PassThrough());"
},
/*expectedCPP=*/{
"SkString _sample149 = this->invokeChild(0, args);\n",
"SkString _sample166 = this->invokeChild(1, args);\n",
"fragBuilder->codeAppendf(\n"
"R\"SkSL(%s = %s * %s;\n"
")SkSL\"\n"
", args.fOutputColor, _sample149.c_str(), _sample166.c_str());",
"this->cloneAndRegisterAllChildProcessors(src);",
});
}
DEF_TEST(SkSLFPChildProcessorsWithInput, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
uniform half4 color;
in fragmentProcessor child1;
in fragmentProcessor child2;
void main() {
half4 childIn = color;
half4 childOut1 = sample(child1, childIn);
half4 childOut2 = sample(child2, childOut1);
sk_OutColor = childOut2;
}
)__SkSL__",
/*expectedH=*/{
"this->registerChild(std::move(child1), SkSL::SampleUsage::PassThrough());",
"this->registerChild(std::move(child2), SkSL::SampleUsage::PassThrough());"
},
/*expectedCPP=*/{
"this->cloneAndRegisterAllChildProcessors(src);",
R"__Cpp__(
SkString _input227("childIn");
SkString _sample227 = this->invokeChild(0, _input227.c_str(), args);
fragBuilder->codeAppendf(
R"SkSL(
half4 childOut1 = %s;)SkSL"
, _sample227.c_str());
SkString _input287("childOut1");
SkString _sample287 = this->invokeChild(1, _input287.c_str(), args);
fragBuilder->codeAppendf(
R"SkSL(
half4 childOut2 = %s;
%s = childOut2;
)SkSL"
, _sample287.c_str(), args.fOutputColor);
)__Cpp__"});
}
DEF_TEST(SkSLFPChildProcessorWithInputExpression, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
uniform half4 color;
in fragmentProcessor child;
void main() {
sk_OutColor = sample(child, color * half4(0.5));
}
)__SkSL__",
/*expectedH=*/{
"this->registerChild(std::move(child), SkSL::SampleUsage::PassThrough());",
},
/*expectedCPP=*/{
"this->cloneAndRegisterAllChildProcessors(src);",
R"__Cpp__(
SkString _input140 = SkStringPrintf("%s * half4(0.5)", args.fUniformHandler->getUniformCStr(colorVar));
SkString _sample140 = this->invokeChild(0, _input140.c_str(), args);
fragBuilder->codeAppendf(
R"SkSL(%s = %s;
)SkSL"
, args.fOutputColor, _sample140.c_str());
)__Cpp__"});
}
DEF_TEST(SkSLFPNestedChildProcessors, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
uniform half4 color;
in fragmentProcessor child1;
in fragmentProcessor child2;
void main() {
sk_OutColor = sample(child2, color * sample(child1, color * half4(0.5)));
}
)__SkSL__",
/*expectedH=*/{
"this->registerChild(std::move(child1), SkSL::SampleUsage::PassThrough());",
"this->registerChild(std::move(child2), SkSL::SampleUsage::PassThrough());"
},
/*expectedCPP=*/{
"this->cloneAndRegisterAllChildProcessors(src);",
R"__Cpp__(
SkString _input206 = SkStringPrintf("%s * half4(0.5)", args.fUniformHandler->getUniformCStr(colorVar));
SkString _sample206 = this->invokeChild(0, _input206.c_str(), args);
SkString _input183 = SkStringPrintf("%s * %s", args.fUniformHandler->getUniformCStr(colorVar), _sample206.c_str());
SkString _sample183 = this->invokeChild(1, _input183.c_str(), args);
fragBuilder->codeAppendf(
R"SkSL(%s = %s;
)SkSL"
, args.fOutputColor, _sample183.c_str());
)__Cpp__",
});
}
DEF_TEST(SkSLFPChildFPAndGlobal, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
in fragmentProcessor child;
bool hasCap = sk_Caps.externalTextureSupport;
void main() {
if (hasCap) {
sk_OutColor = sample(child);
} else {
sk_OutColor = half4(1);
}
}
)__SkSL__",
/*expectedH=*/{
"this->registerChild(std::move(child), SkSL::SampleUsage::PassThrough());"
},
/*expectedCPP=*/{
"this->cloneAndRegisterAllChildProcessors(src);",
R"__Cpp__(
hasCap = sk_Caps.externalTextureSupport;
fragBuilder->codeAppendf(
R"SkSL(bool hasCap = %s;
if (hasCap) {)SkSL"
, (hasCap ? "true" : "false"));
SkString _sample200 = this->invokeChild(0, args);
fragBuilder->codeAppendf(
R"SkSL(
%s = %s;
} else {
%s = half4(1.0);
}
)SkSL"
, args.fOutputColor, _sample200.c_str(), args.fOutputColor);
)__Cpp__"});
}
DEF_TEST(SkSLFPChildProcessorInlineFieldAccess, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
in fragmentProcessor child;
void main() {
if (child.preservesOpaqueInput) {
sk_OutColor = sample(child);
} else {
sk_OutColor = half4(1);
}
}
)__SkSL__",
/*expectedH=*/{
"this->registerChild(std::move(child), SkSL::SampleUsage::PassThrough());"
},
/*expectedCPP=*/{
"this->cloneAndRegisterAllChildProcessors(src);",
R"__Cpp__(
fragBuilder->codeAppendf(
R"SkSL(if (%s) {)SkSL"
, (_outer.childProcessor(0)->preservesOpaqueInput() ? "true" : "false"));
SkString _sample161 = this->invokeChild(0, args);
fragBuilder->codeAppendf(
R"SkSL(
%s = %s;
} else {
%s = half4(1.0);
}
)SkSL"
, args.fOutputColor, _sample161.c_str(), args.fOutputColor);
)__Cpp__"});
}
DEF_TEST(SkSLFPChildProcessorFieldAccess, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
in fragmentProcessor child;
bool opaque = child.preservesOpaqueInput;
void main() {
if (opaque) {
sk_OutColor = sample(child);
} else {
sk_OutColor = half4(0.5);
}
}
)__SkSL__",
/*expectedH=*/{
"this->registerChild(std::move(child), SkSL::SampleUsage::PassThrough());"
},
/*expectedCPP=*/{
"opaque = _outer.childProcessor(0)->preservesOpaqueInput();",
"fragBuilder->codeAppendf(\n"
"R\"SkSL(bool opaque = %s;\n"
"if (opaque) {)SkSL\"\n"
", (opaque ? \"true\" : \"false\"));",
"SkString _sample196 = this->invokeChild(0, args);",
"fragBuilder->codeAppendf(\n"
"R\"SkSL(\n"
" %s = %s;\n"
"} else {\n"
" %s = half4(0.5);\n"
"}\n"
")SkSL\"\n"
", args.fOutputColor, _sample196.c_str(), args.fOutputColor);",
"this->cloneAndRegisterAllChildProcessors(src);",
});
}
DEF_TEST(SkSLFPNullableChildProcessor, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
in fragmentProcessor? child;
void main() {
if (child != null) {
sk_OutColor = sample(child);
} else {
sk_OutColor = half4(0.5);
}
}
)__SkSL__",
/*expectedH=*/{},
/*expectedCPP=*/{
"fragBuilder->codeAppendf(\n"
"R\"SkSL(if (%s) {)SkSL\"\n"
", _outer.childProcessor(0) ? \"true\" : \"false\");",
"SkString _sample149 = this->invokeChild(0, args);",
"fragBuilder->codeAppendf(\n"
"R\"SkSL(\n"
" %s = %s;\n"
"} else {\n"
" %s = half4(0.5);\n"
"}\n"
")SkSL\"\n"
", args.fOutputColor, _sample149.c_str(), args.fOutputColor);",
});
}
DEF_TEST(SkSLFPBadIn, r) {
test_failure(r,
R"__SkSL__(
in half4 c;
void main() {
sk_OutColor = c;
}
)__SkSL__",
"error: 4: 'in' variable must be either 'uniform' or 'layout(key)', or there must be a "
"custom @setData function\n1 error\n");
}
DEF_TEST(SkSLFPNoFPLocals, r) {
test_failure(r,
R"__SkSL__(
void main() {
fragmentProcessor child;
}
)__SkSL__",
"error: 1: variables of type 'fragmentProcessor' must be global\n"
"1 error\n");
}
DEF_TEST(SkSLFPNoFPParams, r) {
test_failure(r,
R"__SkSL__(
in fragmentProcessor child;
half4 helper(fragmentProcessor fp) { return sample(fp); }
void main() {
sk_OutColor = helper(child);
}
)__SkSL__",
"error: 3: parameters of type 'fragmentProcessor' not allowed\n"
"error: 5: unknown identifier 'helper'\n"
"2 errors\n");
}
DEF_TEST(SkSLFPNoFPReturns, r) {
test_failure(r,
R"__SkSL__(
in fragmentProcessor child;
fragmentProcessor get_child() { return child; }
void main() {
sk_OutColor = sample(get_child());
}
)__SkSL__",
"error: 3: functions may not return type 'fragmentProcessor'\n"
"error: 5: unknown identifier 'get_child'\n"
"2 errors\n");
}
DEF_TEST(SkSLFPNoFPConstructors, r) {
test_failure(r,
R"__SkSL__(
in fragmentProcessor child;
void main() {
sk_OutColor = sample(fragmentProcessor(child));
}
)__SkSL__",
"error: 4: cannot construct 'fragmentProcessor'\n"
"1 error\n");
}
DEF_TEST(SkSLFPNoFPExpressions, r) {
test_failure(r,
R"__SkSL__(
in fragmentProcessor child1;
in fragmentProcessor child2;
void main(float2 coord) {
sk_OutColor = sample(coord.x > 10 ? child1 : child2);
}
)__SkSL__",
"error: 5: ternary expression of type 'fragmentProcessor' not allowed\n"
"1 error\n");
}
DEF_TEST(SkSLFPSampleCoords, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
in fragmentProcessor child;
void main(float2 coord) {
sk_OutColor = sample(child) + sample(child, coord / 2);
}
)__SkSL__",
/*expectedH=*/{
"this->registerChild(std::move(child), SkSL::SampleUsage(SkSL::SampleUsage::Kind::kNone, \"\", false, true, true));",
"this->setUsesSampleCoordsDirectly();"
},
/*expectedCPP=*/{
"SkString _sample118 = this->invokeChild(0, args);\n",
"SkString _coords134 = SkStringPrintf(\"%s / 2.0\", args.fSampleCoord);\n",
"SkString _sample134 = this->invokeChild(0, args, _coords134.c_str());\n",
"fragBuilder->codeAppendf(\n"
"R\"SkSL(%s = %s + %s;\n"
")SkSL\"\n"
", args.fOutputColor, _sample118.c_str(), _sample134.c_str());"
});
}
DEF_TEST(SkSLFPFunction, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
uniform half4 color;
half4 flip(half4 c) { return c.abgr; }
void main() {
sk_OutColor = flip(color);
}
)__SkSL__",
/*expectedH=*/{},
/*expectedCPP=*/{
R"__Cpp__(
SkString flip_name;
const GrShaderVar flip_args[] = { GrShaderVar("c", kHalf4_GrSLType)};
fragBuilder->emitFunction(kHalf4_GrSLType, "flip", 1, flip_args,
R"SkSL(return c.wzyx;
)SkSL", &flip_name);
fragBuilder->codeAppendf(
R"SkSL(half4 _0_flip;
{
_0_flip = %s.wzyx;
}
%s = _0_flip;
)SkSL"
, args.fUniformHandler->getUniformCStr(colorVar), args.fOutputColor);
)__Cpp__"});
}
DEF_TEST(SkSLFPSwitchWithMultipleReturnsInside, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
uniform half4 color;
half4 switchy(half4 c) {
switch (int(c.x)) {
case 0: return c.yyyy;
default: return c.zzzz;
}
}
void main() {
sk_OutColor = switchy(color);
}
)__SkSL__",
/*expectedH=*/{},
/*expectedCPP=*/{
R"__Cpp__(fragBuilder->emitFunction(kHalf4_GrSLType, "switchy", 1, switchy_args,
R"SkSL(switch (int(c.x)) {
case 0:
return c.yyyy;
default:
return c.zzzz;
}
)SkSL", &switchy_name);
fragBuilder->codeAppendf(
R"SkSL(%s = %s(%s);
)SkSL"
, args.fOutputColor, switchy_name.c_str(), args.fUniformHandler->getUniformCStr(colorVar));
)__Cpp__"});
}
DEF_TEST(SkSLFPGrSLTypesAreSupported, r) {
// We thwart the optimizer by wrapping our return statement in a loop, which prevents inlining.
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
int test(int a) { for (;;) { return a; } }
void main() { sk_OutColor = test(1).xxxx; }
)__SkSL__",
/*expectedH=*/{},
/*expectedCPP=*/{
R"__Cpp__(const GrShaderVar test_args[] = { GrShaderVar("a", kInt_GrSLType)};)__Cpp__",
R"__Cpp__(fragBuilder->emitFunction(kInt_GrSLType, "test", 1, test_args,)__Cpp__",
});
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
int2 test(int2 a) { for (;;) { return a; } }
void main() { sk_OutColor = test(int2(1)).xyxy; }
)__SkSL__",
/*expectedH=*/{},
/*expectedCPP=*/{
R"__Cpp__(const GrShaderVar test_args[] = { GrShaderVar("a", kInt2_GrSLType)};)__Cpp__",
R"__Cpp__(fragBuilder->emitFunction(kInt2_GrSLType, "test", 1, test_args,)__Cpp__",
});
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
int3 test(int3 a) { for (;;) { return a; } }
void main() { sk_OutColor = test(int3(1)).xyzx; }
)__SkSL__",
/*expectedH=*/{},
/*expectedCPP=*/{
R"__Cpp__(const GrShaderVar test_args[] = { GrShaderVar("a", kInt3_GrSLType)};)__Cpp__",
R"__Cpp__(fragBuilder->emitFunction(kInt3_GrSLType, "test", 1, test_args,)__Cpp__",
});
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
int4 test(int4 a) { for (;;) { return a; } }
void main() { sk_OutColor = test(int4(1)); }
)__SkSL__",
/*expectedH=*/{},
/*expectedCPP=*/{
R"__Cpp__(const GrShaderVar test_args[] = { GrShaderVar("a", kInt4_GrSLType)};)__Cpp__",
R"__Cpp__(fragBuilder->emitFunction(kInt4_GrSLType, "test", 1, test_args,)__Cpp__",
});
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
half3x4 test(float3x4 a) { for (;;) { return half3x4(a); } }
void main() { sk_OutColor = test(float3x4(0))[0]; }
)__SkSL__",
/*expectedH=*/{},
/*expectedCPP=*/{
R"__Cpp__(const GrShaderVar test_args[] = { GrShaderVar("a", kFloat3x4_GrSLType)};)__Cpp__",
R"__Cpp__(fragBuilder->emitFunction(kHalf3x4_GrSLType, "test", 1, test_args,)__Cpp__",
});
}
DEF_TEST(SkSLFPMatrixSampleConstant, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
in fragmentProcessor? child;
void main() {
sk_OutColor = sample(child, float3x3(2));
}
)__SkSL__",
/*expectedH=*/{
"this->registerChild(std::move(child), "
"SkSL::SampleUsage::UniformMatrix(\"float3x3(2.0)\", true));"
},
/*expectedCPP=*/{
"this->invokeChildWithMatrix(0, args)"
});
}
DEF_TEST(SkSLFPMatrixSampleUniform, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
in fragmentProcessor? child;
uniform float3x3 matrix;
void main() {
sk_OutColor = sample(child, matrix);
}
)__SkSL__",
/*expectedH=*/{
// Since 'matrix' is just a uniform, the generated code can't determine perspective.
"this->registerChild(std::move(child), "
"SkSL::SampleUsage::UniformMatrix(\"matrix\", true));"
},
/*expectedCPP=*/{
"this->invokeChildWithMatrix(0, args)"
});
}
DEF_TEST(SkSLFPMatrixSampleInUniform, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
in fragmentProcessor? child;
in uniform float3x3 matrix;
void main() {
sk_OutColor = sample(child, matrix);
}
)__SkSL__",
/*expectedH=*/{
// Since 'matrix' is marked 'in', we can detect perspective at runtime
"this->registerChild(std::move(child), "
"SkSL::SampleUsage::UniformMatrix(\"matrix\", matrix.hasPerspective()));"
},
/*expectedCPP=*/{
"this->invokeChildWithMatrix(0, args)"
});
}
DEF_TEST(SkSLFPMatrixSampleMultipleInUniforms, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
in fragmentProcessor? child;
in uniform float3x3 matrixA;
in uniform float3x3 matrixB;
void main() {
sk_OutColor = sample(child, matrixA);
sk_OutColor += sample(child, matrixB);
}
)__SkSL__",
/*expectedH=*/{
// FIXME it would be nice if codegen can produce
// (matrixA.hasPerspective() || matrixB.hasPerspective()) even though it's variable.
"this->registerChild(std::move(child), "
"SkSL::SampleUsage::VariableMatrix(true));"
},
/*expectedCPP=*/{
"SkString _matrix191(args.fUniformHandler->getUniformCStr(matrixAVar));",
"this->invokeChildWithMatrix(0, args, _matrix191.c_str());",
"SkString _matrix247(args.fUniformHandler->getUniformCStr(matrixBVar));",
"this->invokeChildWithMatrix(0, args, _matrix247.c_str());"
});
}
DEF_TEST(SkSLFPMatrixSampleConstUniformExpression, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
in fragmentProcessor? child;
uniform float3x3 matrix;
void main() {
sk_OutColor = sample(child, 0.5 * matrix);
}
)__SkSL__",
/*expectedH=*/{
// FIXME: "0.5 * matrix" is a uniform expression and could be lifted to the vertex
// shader, once downstream code is able to properly map 'matrix' within the expression.
"this->registerChild(std::move(child), "
"SkSL::SampleUsage::VariableMatrix(true));"
},
/*expectedCPP=*/{
"SkString _matrix145 = SkStringPrintf(\"0.5 * %s\", "
"args.fUniformHandler->getUniformCStr(matrixVar));",
"this->invokeChildWithMatrix(0, args, _matrix145.c_str());"
});
}
DEF_TEST(SkSLFPMatrixSampleConstantAndExplicitly, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
in fragmentProcessor? child;
void main(float2 coord) {
sk_OutColor = sample(child, float3x3(0.5));
sk_OutColor = sample(child, coord / 2);
}
)__SkSL__",
/*expectedH=*/{
"this->registerChild(std::move(child), "
"SkSL::SampleUsage(SkSL::SampleUsage::Kind::kUniform, \"float3x3(0.5)\", true, true, false));"
},
/*expectedCPP=*/{
"this->invokeChildWithMatrix(0, args)",
"SkString _coords180 = SkStringPrintf(\"%s / 2.0\", args.fSampleCoord);",
"this->invokeChild(0, args, _coords180.c_str())",
});
}
DEF_TEST(SkSLFPMatrixSampleVariableAndExplicitly, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
uniform half4 color;
in fragmentProcessor? child;
void main(float2 coord) {
float3x3 matrix = float3x3(color.a);
sk_OutColor = sample(child, matrix);
sk_OutColor = sample(child, coord / 2);
}
)__SkSL__",
/*expectedH=*/{
"this->registerChild(std::move(child), "
"SkSL::SampleUsage(SkSL::SampleUsage::Kind::kVariable, \"\", true, true, false));"
},
/*expectedCPP=*/{
R"__Cpp__(
colorVar = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag, kHalf4_GrSLType, "color");
fragBuilder->codeAppendf(
R"SkSL(float3x3 matrix = float3x3(float(%s.w));)SkSL"
, args.fUniformHandler->getUniformCStr(colorVar));
SkString _matrix207("matrix");
SkString _sample207 = this->invokeChildWithMatrix(0, args, _matrix207.c_str());
fragBuilder->codeAppendf(
R"SkSL(
%s = %s;)SkSL"
, args.fOutputColor, _sample207.c_str());
SkString _coords261 = SkStringPrintf("%s / 2.0", args.fSampleCoord);
SkString _sample261 = this->invokeChild(0, args, _coords261.c_str());
fragBuilder->codeAppendf(
R"SkSL(
%s = %s;
)SkSL"
, args.fOutputColor, _sample261.c_str());
)__Cpp__"
});
}
DEF_TEST(SkSLUniformArrays, r) {
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
uniform half scalarArray[4];
uniform half2 pointArray[2];
void main() {
sk_OutColor = half4(scalarArray[0] * pointArray[0].x +
scalarArray[1] * pointArray[0].y +
scalarArray[2] * pointArray[1].x +
scalarArray[3] * pointArray[1].y);
}
)__SkSL__",
/*expectedH=*/{
"Make()",
},
/*expectedCPP=*/{
"void onSetData(const GrGLSLProgramDataManager& pdman, "
"const GrFragmentProcessor& _proc) override {\n }"
});
test(r,
*SkSL::ShaderCapsFactory::Default(),
R"__SkSL__(
in uniform half scalarArray[4];
in uniform half2 pointArray[2];
void main() {
sk_OutColor = half4(scalarArray[0] * pointArray[0].x +
scalarArray[1] * pointArray[0].y +
scalarArray[2] * pointArray[1].x +
scalarArray[3] * pointArray[1].y);
}
)__SkSL__",
/*expectedH=*/{
"Make(std::array<float> scalarArray, std::array<SkPoint> pointArray)",
"std::array<float> scalarArray;",
"std::array<SkPoint> pointArray;",
},
/*expectedCPP=*/{
"pdman.set1fv(scalarArrayVar, 4, &(_outer.scalarArray)[0]);",
"pdman.set2fv(pointArrayVar, 2, &pointArrayValue[0].fX);",
});
}
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