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//
// Copyright (c) 2002-2010 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.
//
// debug.cpp: Debugging utilities.
#include "common/debug.h"
#include <stdarg.h>
#include <array>
#include <cstdio>
#include <fstream>
#include <ostream>
#include <vector>
#include "common/angleutils.h"
#include "common/Optional.h"
namespace gl
{
namespace
{
DebugAnnotator *g_debugAnnotator = nullptr;
constexpr std::array<const char *, LOG_NUM_SEVERITIES> g_logSeverityNames = {
{"EVENT", "WARN", "ERR"}};
constexpr const char *LogSeverityName(int severity)
{
return (severity >= 0 && severity < LOG_NUM_SEVERITIES) ? g_logSeverityNames[severity]
: "UNKNOWN";
}
bool ShouldCreateLogMessage(LogSeverity severity)
{
#if defined(ANGLE_TRACE_ENABLED)
return true;
#elif defined(ANGLE_ENABLE_ASSERTS)
return severity == LOG_ERR;
#else
return false;
#endif
}
} // namespace
namespace priv
{
bool ShouldCreatePlatformLogMessage(LogSeverity severity)
{
#if defined(ANGLE_TRACE_ENABLED)
return true;
#else
return severity != LOG_EVENT;
#endif
}
} // namespace priv
bool DebugAnnotationsActive()
{
#if defined(ANGLE_ENABLE_DEBUG_ANNOTATIONS)
return g_debugAnnotator != nullptr && g_debugAnnotator->getStatus();
#else
return false;
#endif
}
bool DebugAnnotationsInitialized()
{
return g_debugAnnotator != nullptr;
}
void InitializeDebugAnnotations(DebugAnnotator *debugAnnotator)
{
UninitializeDebugAnnotations();
g_debugAnnotator = debugAnnotator;
}
void UninitializeDebugAnnotations()
{
// Pointer is not managed.
g_debugAnnotator = nullptr;
}
ScopedPerfEventHelper::ScopedPerfEventHelper(const char *format, ...)
{
#if !defined(ANGLE_ENABLE_DEBUG_TRACE)
if (!DebugAnnotationsActive())
{
return;
}
#endif // !ANGLE_ENABLE_DEBUG_TRACE
va_list vararg;
va_start(vararg, format);
std::vector<char> buffer(512);
size_t len = FormatStringIntoVector(format, vararg, buffer);
ANGLE_LOG(EVENT) << std::string(&buffer[0], len);
va_end(vararg);
}
ScopedPerfEventHelper::~ScopedPerfEventHelper()
{
if (DebugAnnotationsActive())
{
g_debugAnnotator->endEvent();
}
}
LogMessage::LogMessage(const char *function, int line, LogSeverity severity)
: mFunction(function), mLine(line), mSeverity(severity)
{
// EVENT() does not require additional function(line) info.
if (mSeverity != LOG_EVENT)
{
mStream << mFunction << "(" << mLine << "): ";
}
}
LogMessage::~LogMessage()
{
if (DebugAnnotationsInitialized() && (mSeverity == LOG_ERR || mSeverity == LOG_WARN))
{
g_debugAnnotator->logMessage(*this);
}
else
{
Trace(getSeverity(), getMessage().c_str());
}
}
void Trace(LogSeverity severity, const char *message)
{
if (!ShouldCreateLogMessage(severity))
{
return;
}
std::string str(message);
if (DebugAnnotationsActive())
{
std::wstring formattedWideMessage(str.begin(), str.end());
switch (severity)
{
case LOG_EVENT:
g_debugAnnotator->beginEvent(formattedWideMessage.c_str());
break;
default:
g_debugAnnotator->setMarker(formattedWideMessage.c_str());
break;
}
}
if (severity == LOG_ERR)
{
// Note: we use fprintf because <iostream> includes static initializers.
fprintf(stderr, "%s: %s\n", LogSeverityName(severity), str.c_str());
}
#if defined(ANGLE_PLATFORM_WINDOWS) && \
(defined(ANGLE_ENABLE_DEBUG_TRACE_TO_DEBUGGER) || !defined(NDEBUG))
#if !defined(ANGLE_ENABLE_DEBUG_TRACE_TO_DEBUGGER)
if (severity == LOG_ERR)
#endif // !defined(ANGLE_ENABLE_DEBUG_TRACE_TO_DEBUGGER)
{
OutputDebugStringA(str.c_str());
}
#endif
#if defined(ANGLE_ENABLE_DEBUG_TRACE)
#if defined(NDEBUG)
if (severity == LOG_EVENT || severity == LOG_WARN)
{
return;
}
#endif // defined(NDEBUG)
static std::ofstream file(TRACE_OUTPUT_FILE, std::ofstream::app);
if (file)
{
file << LogSeverityName(severity) << ": " << str << std::endl;
file.flush();
}
#endif // defined(ANGLE_ENABLE_DEBUG_TRACE)
}
LogSeverity LogMessage::getSeverity() const
{
return mSeverity;
}
std::string LogMessage::getMessage() const
{
return mStream.str();
}
#if defined(ANGLE_PLATFORM_WINDOWS)
std::ostream &operator<<(std::ostream &os, const FmtHR &fmt)
{
os << "HRESULT: ";
return FmtHexInt(os, fmt.mHR);
}
std::ostream &operator<<(std::ostream &os, const FmtErr &fmt)
{
os << "error: ";
return FmtHexInt(os, fmt.mErr);
}
#endif // defined(ANGLE_PLATFORM_WINDOWS)
} // namespace gl
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