AuroraMiddleware/skia2
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
f72e48dd2f
skia2/tests/SkSLFPTest.cpp
Brian Salomon bf5c0c0c99 Fixed sampling non-SkSL FPs with coordinates 
This fixes an issue where fragment processors which were not written
in pure SkSL did not interact properly with coordinate overrides.

Change-Id: I960173986fd8d6be7322f55ab0d81a533b6b89e5
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/252916
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
2019-11-14 17:46:18 +00:00

729 lines
28 KiB
C++
Raw Blame History

/*
* 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 char* src, const GrShaderCaps& caps,
std::vector<const char*> expectedH, std::vector<const char*> expectedCPP) {
SkSL::Program::Settings settings;
settings.fCaps = &caps;
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);
}
}
}
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);
}
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,
"/* 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 \"include/core/SkTypes.h\"\n\n"
"#include \"src/gpu/GrCoordTransform.h\"\n"
"#include \"src/gpu/GrFragmentProcessor.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"
},
{
"/**************************************************************************************************\n"
" *** This file was autogenerated from GrTest.fp; do not modify.\n"
" **************************************************************************************************/\n"
"#include \"GrTest.h\"\n\n"
"#include \"include/gpu/GrTexture.h\"\n"
"#include \"src/gpu/glsl/GrGLSLFragmentProcessor.h\"\n"
"#include \"src/gpu/glsl/GrGLSLFragmentShaderBuilder.h\"\n"
"#include \"src/gpu/glsl/GrGLSLProgramBuilder.h\"\n"
"#include \"src/sksl/SkSLCPP.h\"\n"
"#include \"src/sksl/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,
"layout(key) in half2 point;"
"void main() {"
"sk_OutColor = half4(point, point);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"static std::unique_ptr<GrFragmentProcessor> Make(SkPoint point) {",
"return std::unique_ptr<GrFragmentProcessor>(new GrTest(point));",
"GrTest(SkPoint point)",
", point(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 (point != that.point) 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()"
},
{
"colorVar = args.fUniformHandler->addUniform(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,
"in uniform half4 color;"
"void main() {"
"sk_OutColor = color;"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"static std::unique_ptr<GrFragmentProcessor> Make(SkRect color) {",
},
{
"colorVar = args.fUniformHandler->addUniform(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,
"layout(ctype=SkPMColor4f) in uniform half4 color;"
"void main() {"
"sk_OutColor = color;"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"static std::unique_ptr<GrFragmentProcessor> Make(SkPMColor4f color) {",
},
{
"colorVar = args.fUniformHandler->addUniform(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,
"layout(tracked) in uniform half4 color;"
"void main() {"
"sk_OutColor = color;"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"static std::unique_ptr<GrFragmentProcessor> Make(SkRect color) {",
},
{
"SkRect colorPrev = SkRect::MakeEmpty();",
"colorVar = args.fUniformHandler->addUniform(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,
"in uniform half2 point;"
"void main() {"
"sk_OutColor = half4(point, point);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"static std::unique_ptr<GrFragmentProcessor> Make(SkPoint point) {",
},
{
"pointVar = args.fUniformHandler->addUniform(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,
"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::ShaderCapsFactory::Default(),
{
"static std::unique_ptr<GrFragmentProcessor> Make(bool test, SkPMColor4f color) {",
},
{
"SkPMColor4f colorPrev = {SK_FloatNaN, SK_FloatNaN, SK_FloatNaN, SK_FloatNaN}",
"auto test = _outer.test;",
"if (test) {",
"colorVar = args.fUniformHandler->addUniform(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,
"@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 = half4(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 )",
", w(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(),
{
"const char* name() const override { return \"Test\"; }\n"
" fields section private:"
},
{});
test(r,
"@make { make section }"
"void main() {"
"sk_OutColor = half4(1);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"public:\n"
" make section"
},
{});
test(r,
"uniform half calculated;"
"layout(key) 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 = calculatedVar;",
"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].fVaryingPoint);",
"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"
" sometimesVar = args.fUniformHandler->addUniform"
});
}
DEF_TEST(SkSLFPChildProcessors, r) {
test(r,
"in fragmentProcessor child1;"
"in fragmentProcessor child2;"
"void main() {"
" sk_OutColor = sample(child1) * sample(child2);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"this->registerChildProcessor(std::move(child1));",
"this->registerChildProcessor(std::move(child2));"
},
{
"SkString _sample93(\"_sample93\");\n",
"this->invokeChild(_outer.child1_index, &_sample93, args);\n",
"SkString _sample110(\"_sample110\");\n",
"this->invokeChild(_outer.child2_index, &_sample110, args);\n",
"fragBuilder->codeAppendf(\"%s = %s * %s;\\n\", args.fOutputColor, _sample93.c_str(), "
"_sample110.c_str());\n",
"this->registerChildProcessor(src.childProcessor(child1_index).clone());",
"this->registerChildProcessor(src.childProcessor(child2_index).clone());"
});
}
DEF_TEST(SkSLFPChildProcessorsWithInput, r) {
test(r,
"in fragmentProcessor child1;"
"in fragmentProcessor child2;"
"void main() {"
" half4 childIn = sk_InColor;"
" half4 childOut1 = sample(child1, childIn);"
" half4 childOut2 = sample(child2, childOut1);"
" sk_OutColor = childOut2;"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"this->registerChildProcessor(std::move(child1));",
"this->registerChildProcessor(std::move(child2));"
},
{
"SkString _input128(\"childIn\");",
"SkString _sample128(\"_sample128\");",
"this->invokeChild(_outer.child1_index, _input128.c_str(), &_sample128, args);",
"fragBuilder->codeAppendf(\"\\nhalf4 childOut1 = %s;\", _sample128.c_str());",
"SkString _input174(\"childOut1\");",
"SkString _sample174(\"_sample174\");",
"this->invokeChild(_outer.child2_index, _input174.c_str(), &_sample174, args);",
"this->registerChildProcessor(src.childProcessor(child1_index).clone());",
"this->registerChildProcessor(src.childProcessor(child2_index).clone());"
});
}
DEF_TEST(SkSLFPChildProcessorWithInputExpression, r) {
test(r,
"in fragmentProcessor child;"
"void main() {"
" sk_OutColor = sample(child, sk_InColor * half4(0.5));"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"this->registerChildProcessor(std::move(child));",
},
{
"SkString _input64 = SkStringPrintf(\"%s * half4(0.5)\", args.fInputColor);",
"SkString _sample64(\"_sample64\");",
"this->invokeChild(_outer.child_index, _input64.c_str(), &_sample64, args);",
"fragBuilder->codeAppendf(\"%s = %s;\\n\", args.fOutputColor, _sample64.c_str());",
"this->registerChildProcessor(src.childProcessor(child_index).clone());",
});
}
DEF_TEST(SkSLFPNestedChildProcessors, r) {
test(r,
"in fragmentProcessor child1;"
"in fragmentProcessor child2;"
"void main() {"
" sk_OutColor = sample(child2, sk_InColor * sample(child1, sk_InColor * half4(0.5)));"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"this->registerChildProcessor(std::move(child1));",
"this->registerChildProcessor(std::move(child2));"
},
{
"SkString _input121 = SkStringPrintf(\"%s * half4(0.5)\", args.fInputColor);",
"SkString _sample121(\"_sample121\");",
"this->invokeChild(_outer.child1_index, _input121.c_str(), &_sample121, args);",
"SkString _input93 = SkStringPrintf(\"%s * %s\", args.fInputColor, _sample121.c_str());",
"SkString _sample93(\"_sample93\");",
"this->invokeChild(_outer.child2_index, _input93.c_str(), &_sample93, args);",
"fragBuilder->codeAppendf(\"%s = %s;\\n\", args.fOutputColor, _sample93.c_str());",
"this->registerChildProcessor(src.childProcessor(child1_index).clone());",
"this->registerChildProcessor(src.childProcessor(child2_index).clone());"
});
}
DEF_TEST(SkSLFPChildFPAndGlobal, r) {
test(r,
"in fragmentProcessor child;"
"bool hasCap = sk_Caps.externalTextureSupport;"
"void main() {"
" if (hasCap) {"
" sk_OutColor = sample(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 _input130 = SkStringPrintf(\"%s\", args.fInputColor);",
"SkString _sample130(\"_sample130\");",
"this->invokeChild(_outer.child_index, _input130.c_str(), &_sample130, args);",
"fragBuilder->codeAppendf(\"\\n %s = %s;\\n} else {\\n %s = half4(1.0);\\n}\\n\","
" args.fOutputColor, _sample130.c_str(), args.fOutputColor);",
"this->registerChildProcessor(src.childProcessor(child_index).clone());"
});
}
DEF_TEST(SkSLFPChildProcessorInlineFieldAccess, r) {
test(r,
"in fragmentProcessor child;"
"void main() {"
" if (child.preservesOpaqueInput) {"
" sk_OutColor = sample(child, sk_InColor);"
" } else {"
" sk_OutColor = half4(1);"
" }"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"this->registerChildProcessor(std::move(child));"
},
{
"fragBuilder->codeAppendf(\"if (%s) {\", "
"(_outer.childProcessor(_outer.child_index).preservesOpaqueInput() ? ",
"SkString _input105 = SkStringPrintf(\"%s\", args.fInputColor);",
"SkString _sample105(\"_sample105\");",
"this->invokeChild(_outer.child_index, _input105.c_str(), &_sample105, args);",
"fragBuilder->codeAppendf(\"\\n %s = %s;\\n} else {\\n %s = half4(1.0);\\n}\\n\","
" args.fOutputColor, _sample105.c_str(), args.fOutputColor);",
"this->registerChildProcessor(src.childProcessor(child_index).clone());"
});
}
DEF_TEST(SkSLFPChildProcessorFieldAccess, r) {
test(r,
"in fragmentProcessor child;"
"bool opaque = child.preservesOpaqueInput;"
"void main() {"
" if (opaque) {"
" sk_OutColor = sample(child);"
" } else {"
" sk_OutColor = half4(0.5);"
" }"
"}",
*SkSL::ShaderCapsFactory::Default(),
{
"this->registerChildProcessor(std::move(child));"
},
{
"opaque = _outer.childProcessor(_outer.child_index).preservesOpaqueInput();",
"fragBuilder->codeAppendf(\"bool opaque = %s;\\nif (opaque) {\", (opaque ? \"true\" : "
"\"false\"));",
"SkString _sample126(\"_sample126\");",
"this->invokeChild(_outer.child_index, &_sample126, args);",
"fragBuilder->codeAppendf(\"\\n %s = %s;\\n} else {\\n %s = half4(0.5);\\n}\\n\","
" args.fOutputColor, _sample126.c_str(), args.fOutputColor);",
"this->registerChildProcessor(src.childProcessor(child_index).clone());"
});
}
DEF_TEST(SkSLFPNullableChildProcessor, r) {
test(r,
"in fragmentProcessor? child;"
"void main() {"
" if (child != null) {"
" sk_OutColor = sample(child);"
" } else {"
" sk_OutColor = half4(0.5);"
" }"
"}",
*SkSL::ShaderCapsFactory::Default(),
{},
{
"fragBuilder->codeAppendf(\"if (%s) {\", _outer.child_index >= 0 ? \"true\" : "
"\"false\");",
"SkString _sample93(\"_sample93\");",
"if (_outer.child_index >= 0) {",
"this->invokeChild(_outer.child_index, &_sample93, args);",
"}",
"fragBuilder->codeAppendf(\"\\n %s = %s;\\n} else {\\n %s = half4(0.5);\\n}\\n\","
" args.fOutputColor, _sample93.c_str(), args.fOutputColor);"
});
}
DEF_TEST(SkSLFPBadIn, r) {
test_failure(r,
"in half4 c;"
"void main() {"
" sk_OutColor = c;"
"}",
"error: 1: 'in' variable must be either 'uniform' or 'layout(key)', or there must be a "
"custom @setData function\n1 error\n");
}
DEF_TEST(SkSLFPSampleCoords, r) {
test(r,
"in fragmentProcessor child;"
"@coordTransform { SkMatrix() }"
"void main() {"
" sk_OutColor = sample(child) + sample(child, sk_TransformedCoords2D[0] / 2);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{},
{
"SkString _sample94(\"_sample94\");\n",
"this->invokeChild(_outer.child_index, &_sample94, args);\n",
"SkString _sample110(\"_sample110\");\n",
"SkString sk_TransformedCoords2D_0 = fragBuilder->ensureCoords2D("
"args.fTransformedCoords[0].fVaryingPoint);\n",
"SkString _coords110 = SkStringPrintf(\"%s / 2.0\", "
"sk_TransformedCoords2D_0.c_str());\n",
"this->invokeChild(_outer.child_index, &_sample110, args, _coords110.c_str());\n",
"fragBuilder->codeAppendf(\"%s = %s + %s;\\n\", args.fOutputColor, _sample94.c_str(), "
"_sample110.c_str());\n"
});
}
DEF_TEST(SkSLFPFunction, r) {
test(r,
"in fragmentProcessor? child;"
"half4 flip(half4 c) { return c.abgr; }"
"void main() {"
" sk_OutColor = flip(sk_InColor);"
"}",
*SkSL::ShaderCapsFactory::Default(),
{},
{
"SkString flip_name;",
"const GrShaderVar flip_args[] = { GrShaderVar(\"c\", kHalf4_GrSLType)};",
"fragBuilder->emitFunction(kHalf4_GrSLType, \"flip\", 1, flip_args, "
"\"return c.wzyx;\\n\", &flip_name);",
"fragBuilder->codeAppendf(\"%s = %s(%s);\\n\", args.fOutputColor, flip_name.c_str(), "
"args.fInputColor);"
});
}
Reference in New Issue View Git Blame Copy Permalink