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SDL: NativeInitGraphics/NativeShutdownGraphics should run on the emu thread.

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This commit is contained in:
Henrik Rydgård 2018-02-04 12:00:56 +01:00
parent 583c20991f
commit c16e397fc6
1 changed files with 19 additions and 9 deletions
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28
SDL/SDLMain.cpp
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@ -725,21 +725,26 @@ enum class EmuThreadState {
static std::thread emuThread;
static std::atomic<int> emuThreadState((int)EmuThreadState::DISABLED);
static void EmuThreadFunc() {
static void EmuThreadFunc(GraphicsContext *graphicsContext) {
setCurrentThreadName("Emu");
// There's no real requirement that NativeInit happen on this thread.
// We just call the update/render loop here.
emuThreadState = (int)EmuThreadState::RUNNING;
NativeInitGraphics(graphicsContext);
while (emuThreadState != (int)EmuThreadState::QUIT_REQUESTED) {
UpdateRunLoop();
}
emuThreadState = (int)EmuThreadState::STOPPED;
NativeShutdownGraphics();
}
static void EmuThreadStart() {
static void EmuThreadStart(GraphicsContext *context) {
emuThreadState = (int)EmuThreadState::START_REQUESTED;
emuThread = std::thread(&EmuThreadFunc);
emuThread = std::thread(&EmuThreadFunc, context);
}
static void EmuThreadStop() {
@ -923,6 +928,9 @@ int main(int argc, char *argv[]) {
GraphicsContext *graphicsContext = nullptr;
SDL_Window *window = nullptr;
bool useEmuThread;
std::string error_message;
if (g_Config.iGPUBackend == (int)GPUBackend::OPENGL) {
SDLGLGraphicsContext *ctx = new SDLGLGraphicsContext();
@ -930,6 +938,7 @@ int main(int argc, char *argv[]) {
printf("GL init error '%s'\n", error_message.c_str());
}
graphicsContext = ctx;
useEmuThread = true;
} else if (g_Config.iGPUBackend == (int)GPUBackend::VULKAN) {
SDLVulkanGraphicsContext *ctx = new SDLVulkanGraphicsContext();
if (!ctx->Init(window, x, y, mode, &error_message)) {
@ -943,6 +952,7 @@ int main(int argc, char *argv[]) {
} else {
graphicsContext = ctx;
}
useEmuThread = false;
}
// Since we render from the main thread, there's nothing done here, but we call it to avoid confusion.
@ -956,9 +966,10 @@ int main(int argc, char *argv[]) {
SDL_ShowCursor(SDL_DISABLE);
#endif
NativeInitGraphics(graphicsContext);
NativeResized();
if (!useEmuThread) {
NativeInitGraphics(graphicsContext);
NativeResized();
}
SDL_AudioSpec fmt, ret_fmt;
memset(&fmt, 0, sizeof(fmt));
@ -996,8 +1007,8 @@ int main(int argc, char *argv[]) {
int framecount = 0;
bool mouseDown = false;
if (GetGPUBackend() == GPUBackend::OPENGL) {
EmuThreadStart();
if (useEmuThread) {
EmuThreadStart(graphicsContext);
}
graphicsContext->ThreadStart();
@ -1201,7 +1212,6 @@ int main(int argc, char *argv[]) {
EmuThreadStop();
delete joystick;
NativeShutdownGraphics();
graphicsContext->Shutdown();
graphicsContext->ThreadEnd();
graphicsContext->ShutdownFromRenderThread();