src/sksl/SkSLHCodeGenerator.cpp - platform/external/skia - Gitiles

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */

 #include "SkSLHCodeGenerator.h"

 #include "SkSLUtil.h"
 #include "ir/SkSLEnum.h"
 #include "ir/SkSLFunctionDeclaration.h"
 #include "ir/SkSLFunctionDefinition.h"
 #include "ir/SkSLSection.h"
 #include "ir/SkSLVarDeclarations.h"

 namespace SkSL {

 HCodeGenerator::HCodeGenerator(const Context* context, const Program* program,
                                ErrorReporter* errors, String name, OutputStream* out)
 : INHERITED(program, errors, out)
 , fContext(*context)
 , fName(std::move(name))
 , fFullName(String::printf("Gr%s", fName.c_str()))
 , fSectionAndParameterHelper(*program, *errors) {}

 String HCodeGenerator::ParameterType(const Context& context, const Type& type,
                                      const Layout& layout) {
     if (layout.fCType != "") {
         return layout.fCType;
     } else if (type == *context.fFloat_Type || type == *context.fHalf_Type) {
         return "float";
     } else if (type == *context.fFloat2_Type || type == *context.fHalf2_Type) {
         return "SkPoint";
     } else if (type == *context.fInt4_Type || type == *context.fShort4_Type) {
         return "SkIRect";
     } else if (type == *context.fFloat4_Type || type == *context.fHalf4_Type) {
         return "SkRect";
     } else if (type == *context.fFloat4x4_Type || type == *context.fHalf4x4_Type) {
         return "SkMatrix44";
     } else if (type.kind() == Type::kSampler_Kind) {
         return "sk_sp<GrTextureProxy>";
     } else if (type == *context.fFragmentProcessor_Type) {
         return "std::unique_ptr<GrFragmentProcessor>";
     }
     return type.name();
 }

 String HCodeGenerator::FieldType(const Context& context, const Type& type,
                                  const Layout& layout) {
     if (type.kind() == Type::kSampler_Kind) {
         return "TextureSampler";
     } else if (type == *context.fFragmentProcessor_Type) {
         // we don't store fragment processors in fields, they get registered via
         // registerChildProcessor instead
         ASSERT(false);
         return "<error>";
     }
     return ParameterType(context, type, layout);
 }

 void HCodeGenerator::writef(const char* s, va_list va) {
     static constexpr int BUFFER_SIZE = 1024;
     va_list copy;
     va_copy(copy, va);
     char buffer[BUFFER_SIZE];
     int length = vsnprintf(buffer, BUFFER_SIZE, s, va);
     if (length < BUFFER_SIZE) {
         fOut->write(buffer, length);
     } else {
         std::unique_ptr<char[]> heap(new char[length + 1]);
         vsprintf(heap.get(), s, copy);
         fOut->write(heap.get(), length);
     }
 }

 void HCodeGenerator::writef(const char* s, ...) {
     va_list va;
     va_start(va, s);
     this->writef(s, va);
     va_end(va);
 }

 bool HCodeGenerator::writeSection(const char* name, const char* prefix) {
     const Section* s = fSectionAndParameterHelper.getSection(name);
     if (s) {
         this->writef("%s%s", prefix, s->fText.c_str());
         return true;
     }
     return false;
 }

 void HCodeGenerator::writeExtraConstructorParams(const char* separator) {
     // super-simple parse, just assume the last token before a comma is the name of a parameter
     // (which is true as long as there are no multi-parameter template types involved). Will replace
     // this with something more robust if the need arises.
     const Section* section = fSectionAndParameterHelper.getSection(CONSTRUCTOR_PARAMS_SECTION);
     if (section) {
         const char* s = section->fText.c_str();
         #define BUFFER_SIZE 64
         char lastIdentifier[BUFFER_SIZE];
         int lastIdentifierLength = 0;
         bool foundBreak = false;
         while (*s) {
             char c = *s;
             ++s;
             if ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') ||
                 c == '_') {
                 if (foundBreak) {
                     lastIdentifierLength = 0;
                     foundBreak = false;
                 }
                 ASSERT(lastIdentifierLength < BUFFER_SIZE);
                 lastIdentifier[lastIdentifierLength] = c;
                 ++lastIdentifierLength;
             } else {
                 foundBreak = true;
                 if (c == ',') {
                     ASSERT(lastIdentifierLength < BUFFER_SIZE);
                     lastIdentifier[lastIdentifierLength] = 0;
                     this->writef("%s%s", separator, lastIdentifier);
                     separator = ", ";
                 } else if (c != ' ' && c != '\t' && c != '\n' && c != '\r') {
                     lastIdentifierLength = 0;
                 }
             }
         }
         if (lastIdentifierLength) {
             ASSERT(lastIdentifierLength < BUFFER_SIZE);
             lastIdentifier[lastIdentifierLength] = 0;
             this->writef("%s%s", separator, lastIdentifier);
         }
     }
 }

 void HCodeGenerator::writeMake() {
     const char* separator;
     if (!this->writeSection(MAKE_SECTION)) {
         this->writef("    static std::unique_ptr<GrFragmentProcessor> Make(");
         separator = "";
         for (const auto& param : fSectionAndParameterHelper.getParameters()) {
             this->writef("%s%s %s", separator, ParameterType(fContext, param->fType,
                                                              param->fModifiers.fLayout).c_str(),
                          String(param->fName).c_str());
             separator = ", ";
         }
         this->writeSection(CONSTRUCTOR_PARAMS_SECTION, separator);
         this->writef(") {\n"
                      "        return std::unique_ptr<GrFragmentProcessor>(new %s(",
                      fFullName.c_str());
         separator = "";
         for (const auto& param : fSectionAndParameterHelper.getParameters()) {
             if (param->fType == *fContext.fFragmentProcessor_Type) {
                 this->writef("%sstd::move(%s)", separator, String(param->fName).c_str());
             } else {
                 this->writef("%s%s", separator, String(param->fName).c_str());
             }
             separator = ", ";
         }
         this->writeExtraConstructorParams(separator);
         this->writef("));\n"
                      "    }\n");
     }
 }

 void HCodeGenerator::failOnSection(const char* section, const char* msg) {
     std::vector<const Section*> s = fSectionAndParameterHelper.getSections(section);
     if (s.size()) {
         fErrors.error(s[0]->fOffset, String("@") + section + " " + msg);
     }
 }

 void HCodeGenerator::writeConstructor() {
     if (this->writeSection(CONSTRUCTOR_SECTION)) {
         const char* msg = "may not be present when constructor is overridden";
         this->failOnSection(CONSTRUCTOR_CODE_SECTION, msg);
         this->failOnSection(CONSTRUCTOR_PARAMS_SECTION, msg);
         this->failOnSection(COORD_TRANSFORM_SECTION, msg);
         this->failOnSection(INITIALIZERS_SECTION, msg);
         this->failOnSection(OPTIMIZATION_FLAGS_SECTION, msg);
     }
     this->writef("    %s(", fFullName.c_str());
     const char* separator = "";
     for (const auto& param : fSectionAndParameterHelper.getParameters()) {
         this->writef("%s%s %s", separator, ParameterType(fContext, param->fType,
                                                          param->fModifiers.fLayout).c_str(),
                      String(param->fName).c_str());
         separator = ", ";
     }
     this->writeSection(CONSTRUCTOR_PARAMS_SECTION, separator);
     this->writef(")\n"
                  "    : INHERITED(k%s_ClassID", fFullName.c_str());
     if (!this->writeSection(OPTIMIZATION_FLAGS_SECTION, ", (OptimizationFlags) ")) {
         this->writef(", kNone_OptimizationFlags");
     }
     this->writef(")");
     this->writeSection(INITIALIZERS_SECTION, "\n    , ");
     for (const auto& param : fSectionAndParameterHelper.getParameters()) {
         String nameString(param->fName);
         const char* name = nameString.c_str();
         if (param->fType.kind() == Type::kSampler_Kind) {
             this->writef("\n    , %s(std::move(%s)", FieldName(name).c_str(), name);
             for (const Section* s : fSectionAndParameterHelper.getSections(
                                                                           SAMPLER_PARAMS_SECTION)) {
                 if (s->fArgument == name) {
                     this->writef(", %s", s->fText.c_str());
                 }
             }
             this->writef(")");
         } else if (param->fType == *fContext.fFragmentProcessor_Type) {
             // do nothing
         } else {
             this->writef("\n    , %s(%s)", FieldName(name).c_str(), name);
         }
     }
     for (const Section* s : fSectionAndParameterHelper.getSections(COORD_TRANSFORM_SECTION)) {
         String field = FieldName(s->fArgument.c_str());
         this->writef("\n    , %sCoordTransform(%s, %s.proxy())", field.c_str(), s->fText.c_str(),
                      field.c_str());
     }
     this->writef(" {\n");
     this->writeSection(CONSTRUCTOR_CODE_SECTION);
     for (const auto& param : fSectionAndParameterHelper.getParameters()) {
         if (param->fType.kind() == Type::kSampler_Kind) {
             this->writef("        this->addTextureSampler(&%s);\n",
                          FieldName(String(param->fName).c_str()).c_str());
         } else if (param->fType == *fContext.fFragmentProcessor_Type) {
             this->writef("        this->registerChildProcessor(std::move(%s));",
                          String(param->fName).c_str());
         }
     }
     for (const Section* s : fSectionAndParameterHelper.getSections(COORD_TRANSFORM_SECTION)) {
         String field = FieldName(s->fArgument.c_str());
         this->writef("        this->addCoordTransform(&%sCoordTransform);\n", field.c_str());
     }
     this->writef("    }\n");
 }

 void HCodeGenerator::writeFields() {
     this->writeSection(FIELDS_SECTION);
     for (const auto& param : fSectionAndParameterHelper.getParameters()) {
         if (param->fType == *fContext.fFragmentProcessor_Type) {
             continue;
         }
         this->writef("    %s %s;\n", FieldType(fContext, param->fType,
                                                param->fModifiers.fLayout).c_str(),
                      FieldName(String(param->fName).c_str()).c_str());
     }
     for (const Section* s : fSectionAndParameterHelper.getSections(COORD_TRANSFORM_SECTION)) {
         this->writef("    GrCoordTransform %sCoordTransform;\n",
                      FieldName(s->fArgument.c_str()).c_str());
     }
 }

 bool HCodeGenerator::generateCode() {
     this->writef(kFragmentProcessorHeader, fFullName.c_str());
     this->writef("#ifndef %s_DEFINED\n"
                  "#define %s_DEFINED\n",
                  fFullName.c_str(),
                  fFullName.c_str());
     this->writef("#include \"SkTypes.h\"\n"
                  "#if SK_SUPPORT_GPU\n");
     this->writeSection(HEADER_SECTION);
     this->writef("#include \"GrFragmentProcessor.h\"\n"
                  "#include \"GrCoordTransform.h\"\n");
     this->writef("class %s : public GrFragmentProcessor {\n"
                  "public:\n",
                  fFullName.c_str());
     for (const auto& p : fProgram.fElements) {
         if (ProgramElement::kEnum_Kind == p->fKind && !((Enum&) *p).fBuiltin) {
             this->writef("%s\n", p->description().c_str());
         }
     }
     this->writeSection(CLASS_SECTION);
     for (const auto& param : fSectionAndParameterHelper.getParameters()) {
         if (param->fType.kind() == Type::kSampler_Kind ||
             param->fType.kind() == Type::kOther_Kind) {
             continue;
         }
         String nameString(param->fName);
         const char* name = nameString.c_str();
         this->writef("    %s %s() const { return %s; }\n",
                      FieldType(fContext, param->fType, param->fModifiers.fLayout).c_str(), name,
                      FieldName(name).c_str());
     }
     this->writeMake();
     this->writef("    %s(const %s& src);\n"
                  "    std::unique_ptr<GrFragmentProcessor> clone() const override;\n"
                  "    const char* name() const override { return \"%s\"; }\n"
                  "private:\n",
                  fFullName.c_str(), fFullName.c_str(), fName.c_str());
     this->writeConstructor();
     this->writef("    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");
     this->writeFields();
     this->writef("    typedef GrFragmentProcessor INHERITED;\n"
                 "};\n");
     this->writeSection(HEADER_END_SECTION);
     this->writef("#endif\n"
                  "#endif\n");
     return 0 == fErrors.errorCount();
 }

 } // namespace
	/*
	* Copyright 2016 Google Inc.
	*
	* Use of this source code is governed by a BSD-style license that can be
	* found in the LICENSE file.
	*/

	#include "SkSLHCodeGenerator.h"

	#include "SkSLUtil.h"
	#include "ir/SkSLEnum.h"
	#include "ir/SkSLFunctionDeclaration.h"
	#include "ir/SkSLFunctionDefinition.h"
	#include "ir/SkSLSection.h"
	#include "ir/SkSLVarDeclarations.h"

	namespace SkSL {

	HCodeGenerator::HCodeGenerator(const Context* context, const Program* program,
	ErrorReporter* errors, String name, OutputStream* out)
	: INHERITED(program, errors, out)
	, fContext(*context)
	, fName(std::move(name))
	, fFullName(String::printf("Gr%s", fName.c_str()))
	, fSectionAndParameterHelper(program, errors) {}

	String HCodeGenerator::ParameterType(const Context& context, const Type& type,
	const Layout& layout) {
	if (layout.fCType != "") {
	return layout.fCType;
	} else if (type == context.fFloat_Type \|\| type == context.fHalf_Type) {
	return "float";
	} else if (type == context.fFloat2_Type \|\| type == context.fHalf2_Type) {
	return "SkPoint";
	} else if (type == context.fInt4_Type \|\| type == context.fShort4_Type) {
	return "SkIRect";
	} else if (type == context.fFloat4_Type \|\| type == context.fHalf4_Type) {
	return "SkRect";
	} else if (type == context.fFloat4x4_Type \|\| type == context.fHalf4x4_Type) {
	return "SkMatrix44";
	} else if (type.kind() == Type::kSampler_Kind) {
	return "sk_sp<GrTextureProxy>";
	} else if (type == *context.fFragmentProcessor_Type) {
	return "std::unique_ptr<GrFragmentProcessor>";
	}
	return type.name();
	}

	String HCodeGenerator::FieldType(const Context& context, const Type& type,
	const Layout& layout) {
	if (type.kind() == Type::kSampler_Kind) {
	return "TextureSampler";
	} else if (type == *context.fFragmentProcessor_Type) {
	// we don't store fragment processors in fields, they get registered via
	// registerChildProcessor instead
	ASSERT(false);
	return "<error>";
	}
	return ParameterType(context, type, layout);
	}

	void HCodeGenerator::writef(const char* s, va_list va) {
	static constexpr int BUFFER_SIZE = 1024;
	va_list copy;
	va_copy(copy, va);
	char buffer[BUFFER_SIZE];
	int length = vsnprintf(buffer, BUFFER_SIZE, s, va);
	if (length < BUFFER_SIZE) {
	fOut->write(buffer, length);
	} else {
	std::unique_ptr<char[]> heap(new char[length + 1]);
	vsprintf(heap.get(), s, copy);
	fOut->write(heap.get(), length);
	}
	}

	void HCodeGenerator::writef(const char* s, ...) {
	va_list va;
	va_start(va, s);
	this->writef(s, va);
	va_end(va);
	}

	bool HCodeGenerator::writeSection(const char* name, const char* prefix) {
	const Section* s = fSectionAndParameterHelper.getSection(name);
	if (s) {
	this->writef("%s%s", prefix, s->fText.c_str());
	return true;
	}
	return false;
	}

	void HCodeGenerator::writeExtraConstructorParams(const char* separator) {
	// super-simple parse, just assume the last token before a comma is the name of a parameter
	// (which is true as long as there are no multi-parameter template types involved). Will replace
	// this with something more robust if the need arises.
	const Section* section = fSectionAndParameterHelper.getSection(CONSTRUCTOR_PARAMS_SECTION);
	if (section) {
	const char* s = section->fText.c_str();
	#define BUFFER_SIZE 64
	char lastIdentifier[BUFFER_SIZE];
	int lastIdentifierLength = 0;
	bool foundBreak = false;
	while (*s) {
	char c = *s;
	++s;
	if ((c >= 'A' && c <= 'Z') \|\| (c >= 'a' && c <= 'z') \|\| (c >= '0' && c <= '9') \|\|
	c == '_') {
	if (foundBreak) {
	lastIdentifierLength = 0;
	foundBreak = false;
	}
	ASSERT(lastIdentifierLength < BUFFER_SIZE);
	lastIdentifier[lastIdentifierLength] = c;
	++lastIdentifierLength;
	} else {
	foundBreak = true;
	if (c == ',') {
	ASSERT(lastIdentifierLength < BUFFER_SIZE);
	lastIdentifier[lastIdentifierLength] = 0;
	this->writef("%s%s", separator, lastIdentifier);
	separator = ", ";
	} else if (c != ' ' && c != '\t' && c != '\n' && c != '\r') {
	lastIdentifierLength = 0;
	}
	}
	}
	if (lastIdentifierLength) {
	ASSERT(lastIdentifierLength < BUFFER_SIZE);
	lastIdentifier[lastIdentifierLength] = 0;
	this->writef("%s%s", separator, lastIdentifier);
	}
	}
	}

	void HCodeGenerator::writeMake() {
	const char* separator;
	if (!this->writeSection(MAKE_SECTION)) {
	this->writef(" static std::unique_ptr<GrFragmentProcessor> Make(");
	separator = "";
	for (const auto& param : fSectionAndParameterHelper.getParameters()) {
	this->writef("%s%s %s", separator, ParameterType(fContext, param->fType,
	param->fModifiers.fLayout).c_str(),
	String(param->fName).c_str());
	separator = ", ";
	}
	this->writeSection(CONSTRUCTOR_PARAMS_SECTION, separator);
	this->writef(") {\n"
	" return std::unique_ptr<GrFragmentProcessor>(new %s(",
	fFullName.c_str());
	separator = "";
	for (const auto& param : fSectionAndParameterHelper.getParameters()) {
	if (param->fType == *fContext.fFragmentProcessor_Type) {
	this->writef("%sstd::move(%s)", separator, String(param->fName).c_str());
	} else {
	this->writef("%s%s", separator, String(param->fName).c_str());
	}
	separator = ", ";
	}
	this->writeExtraConstructorParams(separator);
	this->writef("));\n"
	" }\n");
	}
	}

	void HCodeGenerator::failOnSection(const char* section, const char* msg) {
	std::vector<const Section*> s = fSectionAndParameterHelper.getSections(section);
	if (s.size()) {
	fErrors.error(s[0]->fOffset, String("@") + section + " " + msg);
	}
	}

	void HCodeGenerator::writeConstructor() {
	if (this->writeSection(CONSTRUCTOR_SECTION)) {
	const char* msg = "may not be present when constructor is overridden";
	this->failOnSection(CONSTRUCTOR_CODE_SECTION, msg);
	this->failOnSection(CONSTRUCTOR_PARAMS_SECTION, msg);
	this->failOnSection(COORD_TRANSFORM_SECTION, msg);
	this->failOnSection(INITIALIZERS_SECTION, msg);
	this->failOnSection(OPTIMIZATION_FLAGS_SECTION, msg);
	}
	this->writef(" %s(", fFullName.c_str());
	const char* separator = "";
	for (const auto& param : fSectionAndParameterHelper.getParameters()) {
	this->writef("%s%s %s", separator, ParameterType(fContext, param->fType,
	param->fModifiers.fLayout).c_str(),
	String(param->fName).c_str());
	separator = ", ";
	}
	this->writeSection(CONSTRUCTOR_PARAMS_SECTION, separator);
	this->writef(")\n"
	" : INHERITED(k%s_ClassID", fFullName.c_str());
	if (!this->writeSection(OPTIMIZATION_FLAGS_SECTION, ", (OptimizationFlags) ")) {
	this->writef(", kNone_OptimizationFlags");
	}
	this->writef(")");
	this->writeSection(INITIALIZERS_SECTION, "\n , ");
	for (const auto& param : fSectionAndParameterHelper.getParameters()) {
	String nameString(param->fName);
	const char* name = nameString.c_str();
	if (param->fType.kind() == Type::kSampler_Kind) {
	this->writef("\n , %s(std::move(%s)", FieldName(name).c_str(), name);
	for (const Section* s : fSectionAndParameterHelper.getSections(
	SAMPLER_PARAMS_SECTION)) {
	if (s->fArgument == name) {
	this->writef(", %s", s->fText.c_str());
	}
	}
	this->writef(")");
	} else if (param->fType == *fContext.fFragmentProcessor_Type) {
	// do nothing
	} else {
	this->writef("\n , %s(%s)", FieldName(name).c_str(), name);
	}
	}
	for (const Section* s : fSectionAndParameterHelper.getSections(COORD_TRANSFORM_SECTION)) {
	String field = FieldName(s->fArgument.c_str());
	this->writef("\n , %sCoordTransform(%s, %s.proxy())", field.c_str(), s->fText.c_str(),
	field.c_str());
	}
	this->writef(" {\n");
	this->writeSection(CONSTRUCTOR_CODE_SECTION);
	for (const auto& param : fSectionAndParameterHelper.getParameters()) {
	if (param->fType.kind() == Type::kSampler_Kind) {
	this->writef(" this->addTextureSampler(&%s);\n",
	FieldName(String(param->fName).c_str()).c_str());
	} else if (param->fType == *fContext.fFragmentProcessor_Type) {
	this->writef(" this->registerChildProcessor(std::move(%s));",
	String(param->fName).c_str());
	}
	}
	for (const Section* s : fSectionAndParameterHelper.getSections(COORD_TRANSFORM_SECTION)) {
	String field = FieldName(s->fArgument.c_str());
	this->writef(" this->addCoordTransform(&%sCoordTransform);\n", field.c_str());
	}
	this->writef(" }\n");
	}

	void HCodeGenerator::writeFields() {
	this->writeSection(FIELDS_SECTION);
	for (const auto& param : fSectionAndParameterHelper.getParameters()) {
	if (param->fType == *fContext.fFragmentProcessor_Type) {
	continue;
	}
	this->writef(" %s %s;\n", FieldType(fContext, param->fType,
	param->fModifiers.fLayout).c_str(),
	FieldName(String(param->fName).c_str()).c_str());
	}
	for (const Section* s : fSectionAndParameterHelper.getSections(COORD_TRANSFORM_SECTION)) {
	this->writef(" GrCoordTransform %sCoordTransform;\n",
	FieldName(s->fArgument.c_str()).c_str());
	}
	}

	bool HCodeGenerator::generateCode() {
	this->writef(kFragmentProcessorHeader, fFullName.c_str());
	this->writef("#ifndef %s_DEFINED\n"
	"#define %s_DEFINED\n",
	fFullName.c_str(),
	fFullName.c_str());
	this->writef("#include \"SkTypes.h\"\n"
	"#if SK_SUPPORT_GPU\n");
	this->writeSection(HEADER_SECTION);
	this->writef("#include \"GrFragmentProcessor.h\"\n"
	"#include \"GrCoordTransform.h\"\n");
	this->writef("class %s : public GrFragmentProcessor {\n"
	"public:\n",
	fFullName.c_str());
	for (const auto& p : fProgram.fElements) {
	if (ProgramElement::kEnum_Kind == p->fKind && !((Enum&) *p).fBuiltin) {
	this->writef("%s\n", p->description().c_str());
	}
	}
	this->writeSection(CLASS_SECTION);
	for (const auto& param : fSectionAndParameterHelper.getParameters()) {
	if (param->fType.kind() == Type::kSampler_Kind \|\|
	param->fType.kind() == Type::kOther_Kind) {
	continue;
	}
	String nameString(param->fName);
	const char* name = nameString.c_str();
	this->writef(" %s %s() const { return %s; }\n",
	FieldType(fContext, param->fType, param->fModifiers.fLayout).c_str(), name,
	FieldName(name).c_str());
	}
	this->writeMake();
	this->writef(" %s(const %s& src);\n"
	" std::unique_ptr<GrFragmentProcessor> clone() const override;\n"
	" const char* name() const override { return \"%s\"; }\n"
	"private:\n",
	fFullName.c_str(), fFullName.c_str(), fName.c_str());
	this->writeConstructor();
	this->writef(" 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");
	this->writeFields();
	this->writef(" typedef GrFragmentProcessor INHERITED;\n"
	"};\n");
	this->writeSection(HEADER_END_SECTION);
	this->writef("#endif\n"
	"#endif\n");
	return 0 == fErrors.errorCount();
	}

	} // namespace