| // |
| // 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 <vector> |
| #include <fstream> |
| #include <cstdio> |
| |
| #if defined(ANGLE_ENABLE_PERF) |
| #include <d3d9.h> |
| #endif |
| |
| namespace gl |
| { |
| #if defined(ANGLE_ENABLE_PERF) |
| typedef void (WINAPI *PerfOutputFunction)(D3DCOLOR, LPCWSTR); |
| #else |
| typedef void (*PerfOutputFunction)(unsigned int, const wchar_t*); |
| #endif |
| |
| static void output(bool traceFileDebugOnly, PerfOutputFunction perfFunc, const char *format, va_list vararg) |
| { |
| #if defined(ANGLE_ENABLE_PERF) || defined(ANGLE_ENABLE_TRACE) |
| static std::vector<char> asciiMessageBuffer(512); |
| |
| // Attempt to just print to the current buffer |
| int len = vsnprintf(&asciiMessageBuffer[0], asciiMessageBuffer.size(), format, vararg); |
| if (len < 0 || static_cast<size_t>(len) >= asciiMessageBuffer.size()) |
| { |
| // Buffer was not large enough, calculate the required size and resize the buffer |
| len = vsnprintf(NULL, 0, format, vararg); |
| asciiMessageBuffer.resize(len + 1); |
| |
| // Print again |
| vsnprintf(&asciiMessageBuffer[0], asciiMessageBuffer.size(), format, vararg); |
| } |
| |
| // NULL terminate the buffer to be safe |
| asciiMessageBuffer[len] = '\0'; |
| #endif |
| |
| #if defined(ANGLE_ENABLE_PERF) |
| if (perfActive()) |
| { |
| // The perf function only accepts wide strings, widen the ascii message |
| static std::wstring wideMessage; |
| if (wideMessage.capacity() < asciiMessageBuffer.size()) |
| { |
| wideMessage.reserve(asciiMessageBuffer.size()); |
| } |
| |
| wideMessage.assign(asciiMessageBuffer.begin(), asciiMessageBuffer.begin() + len); |
| |
| perfFunc(0, wideMessage.c_str()); |
| } |
| #endif // ANGLE_ENABLE_PERF |
| |
| #if defined(ANGLE_ENABLE_TRACE) |
| #if defined(NDEBUG) |
| if (traceFileDebugOnly) |
| { |
| return; |
| } |
| #endif // NDEBUG |
| |
| static std::ofstream file(TRACE_OUTPUT_FILE, std::ofstream::app); |
| if (file) |
| { |
| file.write(&asciiMessageBuffer[0], len); |
| file.flush(); |
| } |
| |
| #endif // ANGLE_ENABLE_TRACE |
| } |
| |
| void trace(bool traceFileDebugOnly, const char *format, ...) |
| { |
| va_list vararg; |
| va_start(vararg, format); |
| #if defined(ANGLE_ENABLE_PERF) |
| output(traceFileDebugOnly, D3DPERF_SetMarker, format, vararg); |
| #else |
| output(traceFileDebugOnly, NULL, format, vararg); |
| #endif |
| va_end(vararg); |
| } |
| |
| bool perfActive() |
| { |
| #if defined(ANGLE_ENABLE_PERF) |
| static bool active = D3DPERF_GetStatus() != 0; |
| return active; |
| #else |
| return false; |
| #endif |
| } |
| |
| ScopedPerfEventHelper::ScopedPerfEventHelper(const char* format, ...) |
| { |
| #if defined(ANGLE_ENABLE_PERF) |
| #if !defined(ANGLE_ENABLE_TRACE) |
| if (!perfActive()) |
| { |
| return; |
| } |
| #endif // !ANGLE_ENABLE_TRACE |
| va_list vararg; |
| va_start(vararg, format); |
| output(true, reinterpret_cast<PerfOutputFunction>(D3DPERF_BeginEvent), format, vararg); |
| va_end(vararg); |
| #endif // ANGLE_ENABLE_PERF |
| } |
| |
| ScopedPerfEventHelper::~ScopedPerfEventHelper() |
| { |
| #if defined(ANGLE_ENABLE_PERF) |
| if (perfActive()) |
| { |
| D3DPERF_EndEvent(); |
| } |
| #endif |
| } |
| } |