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//
// Copyright 2020 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.
//
// frame_capture_test_utils:
// Helper functions for capture and replay of traces.
//
#ifndef UTIL_FRAME_CAPTURE_TEST_UTILS_H_
#define UTIL_FRAME_CAPTURE_TEST_UTILS_H_
#include <iostream>
#include <memory>
#include <sstream>
#include <type_traits>
#include <vector>
#include "common/angleutils.h"
#include "common/system_utils.h"
#define USE_SYSTEM_ZLIB
#include "compression_utils_portable.h"
#define ANGLE_MACRO_STRINGIZE_AUX(a) #a
#define ANGLE_MACRO_STRINGIZE(a) ANGLE_MACRO_STRINGIZE_AUX(a)
#define ANGLE_MACRO_CONCAT_AUX(a, b) a##b
#define ANGLE_MACRO_CONCAT(a, b) ANGLE_MACRO_CONCAT_AUX(a, b)
namespace angle
{
inline uint8_t *DecompressBinaryData(const std::vector<uint8_t> &compressedData)
{
uint32_t uncompressedSize =
zlib_internal::GetGzipUncompressedSize(compressedData.data(), compressedData.size());
std::unique_ptr<uint8_t[]> uncompressedData(new uint8_t[uncompressedSize]);
uLong destLen = uncompressedSize;
int zResult =
zlib_internal::GzipUncompressHelper(uncompressedData.get(), &destLen, compressedData.data(),
static_cast<uLong>(compressedData.size()));
if (zResult != Z_OK)
{
std::cerr << "Failure to decompressed binary data: " << zResult << "\n";
return nullptr;
}
return uncompressedData.release();
}
using DecompressCallback = uint8_t *(*)(const std::vector<uint8_t> &);
using SetBinaryDataDecompressCallbackFunc = void (*)(DecompressCallback);
using SetBinaryDataDirFunc = void (*)(const char *);
using SetupReplayFunc = void (*)();
using ReplayFrameFunc = void (*)(uint32_t);
using ResetReplayFunc = void (*)();
using FinishReplayFunc = void (*)();
using GetSerializedContextStateFunc = const char *(*)(uint32_t);
class TraceLibrary
{
public:
TraceLibrary(const char *traceNameIn)
{
std::stringstream traceNameStr;
#if !defined(ANGLE_PLATFORM_WINDOWS)
traceNameStr << "lib";
#endif // !defined(ANGLE_PLATFORM_WINDOWS)
traceNameStr << traceNameIn;
#if defined(ANGLE_PLATFORM_ANDROID) && defined(COMPONENT_BUILD)
// Added to shared library names in Android component builds in
// https://chromium.googlesource.com/chromium/src/+/9bacc8c4868cc802f69e1e858eea6757217a508f/build/toolchain/toolchain.gni#56
traceNameStr << ".cr";
#endif // defined(ANGLE_PLATFORM_ANDROID) && defined(COMPONENT_BUILD)
std::string traceName = traceNameStr.str();
mTraceLibrary.reset(OpenSharedLibrary(traceName.c_str(), SearchType::ModuleDir));
}
bool valid() const { return mTraceLibrary != nullptr; }
void setBinaryDataDir(const char *dataDir)
{
callFunc<SetBinaryDataDirFunc>("SetBinaryDataDir", dataDir);
}
void setBinaryDataDecompressCallback(DecompressCallback callback)
{
callFunc<SetBinaryDataDecompressCallbackFunc>("SetBinaryDataDecompressCallback", callback);
}
void replayFrame(uint32_t frameIndex) { callFunc<ReplayFrameFunc>("ReplayFrame", frameIndex); }
void setupReplay() { callFunc<SetupReplayFunc>("SetupReplay"); }
void resetReplay() { callFunc<ResetReplayFunc>("ResetReplay"); }
void finishReplay() { callFunc<FinishReplayFunc>("FinishReplay"); }
const char *getSerializedContextState(uint32_t frameIndex)
{
return callFunc<GetSerializedContextStateFunc>("GetSerializedContextState", frameIndex);
}
private:
template <typename FuncT, typename... ArgsT>
typename std::result_of<FuncT(ArgsT...)>::type callFunc(const char *funcName, ArgsT... args)
{
void *untypedFunc = mTraceLibrary->getSymbol(funcName);
if (!untypedFunc)
{
fprintf(stderr, "Error loading function: %s\n", funcName);
ASSERT(untypedFunc);
}
auto typedFunc = reinterpret_cast<FuncT>(untypedFunc);
return typedFunc(args...);
}
std::unique_ptr<Library> mTraceLibrary;
};
} // namespace angle
#endif // UTIL_FRAME_CAPTURE_TEST_UTILS_H_