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//
// Copyright 2002 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
#ifndef COMPILER_TRANSLATOR_INFOSINK_H_
#define COMPILER_TRANSLATOR_INFOSINK_H_
#include <math.h>
#include <stdlib.h>
#include "GLSLANG/ShaderLang.h"
#include "compiler/translator/Common.h"
#include "compiler/translator/Severity.h"
namespace sh
{
class ImmutableString;
class TType;
// Returns the fractional part of the given floating-point number.
inline float fractionalPart(float f)
{
float intPart = 0.0f;
return modff(f, &intPart);
}
class ImmutableString;
//
// Encapsulate info logs for all objects that have them.
//
// The methods are a general set of tools for getting a variety of
// messages and types inserted into the log.
//
class TInfoSinkBase
{
public:
TInfoSinkBase() {}
template <typename T>
TInfoSinkBase &operator<<(const T &t)
{
TPersistStringStream stream = sh::InitializeStream<TPersistStringStream>();
stream << t;
sink.append(stream.str());
return *this;
}
// Override << operator for specific types. It is faster to append strings
// and characters directly to the sink.
TInfoSinkBase &operator<<(char c)
{
sink.append(1, c);
return *this;
}
TInfoSinkBase &operator<<(const char *str)
{
sink.append(str);
return *this;
}
TInfoSinkBase &operator<<(const TPersistString &str)
{
sink.append(str);
return *this;
}
TInfoSinkBase &operator<<(const TString &str)
{
sink.append(str.c_str());
return *this;
}
TInfoSinkBase &operator<<(const ImmutableString &str);
TInfoSinkBase &operator<<(const TType &type);
// Make sure floats are written with correct precision.
TInfoSinkBase &operator<<(float f)
{
// Make sure that at least one decimal point is written. If a number
// does not have a fractional part, the default precision format does
// not write the decimal portion which gets interpreted as integer by
// the compiler.
TPersistStringStream stream = sh::InitializeStream<TPersistStringStream>();
if (fractionalPart(f) == 0.0f)
{
stream.precision(1);
stream << std::showpoint << std::fixed << f;
}
else
{
stream.unsetf(std::ios::fixed);
stream.unsetf(std::ios::scientific);
stream.precision(8);
stream << f;
}
sink.append(stream.str());
return *this;
}
// Write boolean values as their names instead of integral value.
TInfoSinkBase &operator<<(bool b)
{
const char *str = b ? "true" : "false";
sink.append(str);
return *this;
}
void erase()
{
sink.clear();
binarySink.clear();
}
int size() { return static_cast<int>(isBinary() ? binarySink.size() : sink.size()); }
const TPersistString &str() const
{
ASSERT(!isBinary());
return sink;
}
const char *c_str() const
{
ASSERT(!isBinary());
return sink.c_str();
}
void prefix(Severity severity);
void location(int file, int line);
bool isBinary() const { return !binarySink.empty(); }
void setBinary(BinaryBlob &&binary) { binarySink = std::move(binary); }
const BinaryBlob &getBinary() const
{
ASSERT(isBinary());
return binarySink;
}
private:
// The data in the info sink is either in human readable form (|sink|) or binary (|binarySink|).
TPersistString sink;
BinaryBlob binarySink;
};
class TInfoSink
{
public:
TInfoSinkBase info;
TInfoSinkBase debug;
TInfoSinkBase obj;
};
} // namespace sh
#endif // COMPILER_TRANSLATOR_INFOSINK_H_
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