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threads 2

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This commit is contained in:
Andrea Odetti 2020-11-12 20:33:04 +00:00
parent 314c647daf
commit 6a16d416a4
1 changed files with 33 additions and 30 deletions
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63
source/frontends/sa2/main.cpp
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@ -123,6 +123,24 @@ namespace
RiffFinishWriteFile();
}
struct Data
{
Emulator * emulator;
SDL_mutex * mutex;
bool quit;
};
Uint32 my_callbackfunc(Uint32 interval, void *param)
{
Data * data = static_cast<Data *>(param);
SDL_LockMutex(data->mutex);
SDirectSound::writeAudio();
data->emulator->processEvents(data->quit);
data->emulator->executeOneFrame();
SDL_UnlockMutex(data->mutex);
return interval;
}
}
int MessageBox(HWND, const char * text, const char * caption, UINT type)
@ -211,42 +229,26 @@ void run_sdl(int argc, const char * argv [])
Emulator emulator(win, ren, tex);
int tot1 = 0;
int tot2 = 0;
int tot3 = 0;
int tot4 = 0;
std::shared_ptr<SDL_mutex> mutex(SDL_CreateMutex(), SDL_DestroyMutex);
const auto start = std::chrono::steady_clock::now();
auto t0 = start;
Data data;
data.quit = false;
data.mutex = mutex.get();
data.emulator = &emulator;
SDL_TimerID timer = SDL_AddTimer(1000 / 60, my_callbackfunc, &data);
bool quit = false;
do
{
SDirectSound::writeAudio();
emulator.processEvents(quit);
const auto t1 = std::chrono::steady_clock::now();
tot1 += std::chrono::duration_cast<std::chrono::microseconds>(t1 - t0).count();
emulator.executeOneFrame();
const auto t2 = std::chrono::steady_clock::now();
tot2 += std::chrono::duration_cast<std::chrono::microseconds>(t2 - t1).count();
SDL_LockMutex(data.mutex);
const SDL_Rect rect = emulator.updateTexture();
const auto t3 = std::chrono::steady_clock::now();
tot3 += std::chrono::duration_cast<std::chrono::microseconds>(t3 - t2).count();
SDL_UnlockMutex(data.mutex);
emulator.refreshVideo(rect);
const auto t4 = std::chrono::steady_clock::now();
tot4 += std::chrono::duration_cast<std::chrono::microseconds>(t4 - t3).count();
t0 = t4;
} while (!quit);
} while (!data.quit);
const auto end = std::chrono::steady_clock::now();
const int tot = std::chrono::duration_cast<std::chrono::microseconds>(end - start).count();
std::cerr << "Total: " << tot << std::endl;
std::cerr << "1: " << tot1 << std::endl;
std::cerr << "2: " << tot2 << std::endl;
std::cerr << "3: " << tot3 << std::endl;
std::cerr << "4: " << tot4 << std::endl;
std::cerr << "T: " << tot1 + tot2 + tot3 + tot4 << std::endl;
SDL_RemoveTimer(timer);
SDL_LockMutex(data.mutex);
SDL_UnlockMutex(data.mutex);
SDirectSound::stop();
stopEmulator();
@ -256,7 +258,8 @@ void run_sdl(int argc, const char * argv [])
int main(int argc, const char * argv [])
{
//First we need to start up SDL, and make sure it went ok
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_GAMECONTROLLER | SDL_INIT_AUDIO) != 0)
const Uint32 flags = SDL_INIT_VIDEO | SDL_INIT_GAMECONTROLLER | SDL_INIT_AUDIO | SDL_INIT_TIMER;
if (SDL_Init(flags) != 0)
{
std::cerr << "SDL_Init Error: " << SDL_GetError() << std::endl;
return 1;