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vsync wait on win32 #86

Merged
MartinFouilleul merged 5 commits from vblank_notification into main 2023-09-09 12:40:00 +00:00
Conversation 1 Commits 5 Files Changed 8 +99 -149
7 changed files with 99 additions and 149 deletions
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Showing only changes of commit 6ae129022e - Show all commits

68
src/app/osx_app.m
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@ -1132,8 +1132,6 @@ void oc_init()
[NSApp run];
[NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];
[NSApp activateIgnoringOtherApps:YES];
oc_vsync_init();
}
}
}
@ -2404,37 +2402,39 @@ void oc_vsync_init(void)
{
}
void oc_vsync_window(oc_window window)
void oc_vsync_wait(oc_window window)
{
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(!windowData)
{
return;
}
OCWindow* ocWindow = (OCWindow*)windowData->osx.nsWindow;
CVReturn ret;
if((ret = CVDisplayLinkCreateWithActiveCGDisplays(&ocWindow->displayLink)) != kCVReturnSuccess)
{
oc_log_error("CVDisplayLinkCreateWithActiveCGDisplays error: %d\n", ret);
}
CGDirectDisplayID mainDisplay = CGMainDisplayID();
if((ret = CVDisplayLinkSetCurrentCGDisplay(ocWindow->displayLink, mainDisplay)) != kCVReturnSuccess)
{
oc_log_error("CVDisplayLinkSetCurrentCGDisplay ret: %d\n", ret);
}
if((ret = CVDisplayLinkSetOutputCallback(ocWindow->displayLink, oc_display_link_callback, ocWindow)) != kCVReturnSuccess)
{
oc_log_error("CVDisplayLinkSetOutputCallback ret: %d\n", ret);
}
if((ret = CVDisplayLinkStart(ocWindow->displayLink)) != kCVReturnSuccess)
{
oc_log_error("CVDisplayLinkStart ret: %d\n", ret);
}
// TODO figure out why this causes stuttering with triple buffering
// oc_window_data* windowData = oc_window_ptr_from_handle(window);
// if(!windowData)
// {
// return;
// }
// OCWindow* ocWindow = (OCWindow*)windowData->osx.nsWindow;
// CVReturn ret;
// if((ret = CVDisplayLinkCreateWithActiveCGDisplays(&ocWindow->displayLink)) != kCVReturnSuccess)
// {
// oc_log_error("CVDisplayLinkCreateWithActiveCGDisplays error: %d\n", ret);
// }
// CGDirectDisplayID mainDisplay = CGMainDisplayID();
// if((ret = CVDisplayLinkSetCurrentCGDisplay(ocWindow->displayLink, mainDisplay)) != kCVReturnSuccess)
// {
// oc_log_error("CVDisplayLinkSetCurrentCGDisplay ret: %d\n", ret);
// }
// if((ret = CVDisplayLinkSetOutputCallback(ocWindow->displayLink, oc_display_link_callback, ocWindow)) != kCVReturnSuccess)
// {
// oc_log_error("CVDisplayLinkSetOutputCallback ret: %d\n", ret);
// }
// if((ret = CVDisplayLinkStart(ocWindow->displayLink)) != kCVReturnSuccess)
// {
// oc_log_error("CVDisplayLinkStart ret: %d\n", ret);
// }
}

8
src/app/win32_app.c
View File

@ -586,14 +586,6 @@ LRESULT oc_win32_win_proc(HWND windowHandle, UINT message, WPARAM wParam, LPARAM
}
break;
case OC_WM_USER_VBLANK:
{
oc_event event = { 0 };
event.type = OC_EVENT_FRAME;
oc_queue_event(&event);
}
break;
default:
{
handled = false;

1
src/app/win32_app.h
View File

@ -49,7 +49,6 @@ typedef struct oc_win32_app_data
enum OC_WM_USER
{
OC_WM_USER_DISPATCH_PROC = 0x0400, // WM_USER messages are defined from 0x400 to 0x7FFF
OC_WM_USER_VBLANK = 0x0401,
};
#endif __WIN32_APP_H_

2
src/graphics/graphics.h
View File

@ -132,7 +132,7 @@ ORCA_API void oc_surface_send_to_back(oc_surface surface); //DOC: puts surface
typedef void (*oc_vsync_callback)(void* data);
ORCA_API void oc_vsync_init(void);
ORCA_API void oc_vsync_window(oc_window window);
ORCA_API void oc_vsync_wait(oc_window window);
//------------------------------------------------------------------------------------------
//SECTION: graphics canvas structs

3
src/graphics/graphics_surface.c
View File

@ -148,7 +148,10 @@ oc_surface oc_surface_create_for_window(oc_window window, oc_surface_api api)
if(surface)
{
surfaceHandle = oc_surface_handle_alloc(surface);
// On windows, we do a manual wait for vsync in runtime.c so just turn all the swap intervals off
#if OC_PLATFORM_WINDOWS
oc_surface_swap_interval(surfaceHandle, 0);
#endif
oc_surface_select(surfaceHandle);
}
return (surfaceHandle);

157
src/graphics/win32_vsync.c
View File

@ -23,89 +23,6 @@ typedef struct oc_vsync_data
oc_vsync_data __oc_vsync_data;
typedef struct oc_vsync_thread_data
{
IDXGIAdapter1* adapter;
oc_window window;
bool quit;
} oc_vsync_thread_data;
static i32 oc_window_vysnc_notification_thread(void* userPointer)
{
oc_vsync_thread_data* threadData = (oc_vsync_thread_data*)userPointer;
while(!threadData->quit)
{
oc_window_data* windowData = oc_window_ptr_from_handle(threadData->window);
if(!windowData)
{
oc_log_error("Failed to get window ptr - assuming window was closed.");
break;
}
RECT windowRect = { 0 };
if(GetWindowRect(windowData->win32.hWnd, &windowRect) == FALSE)
{
oc_log_error("Failed to get window rect with error: %d.", GetLastError());
return 1;
}
//NOTE(Reuben): Wait for VBlank on the display device with which the window has the most intersecting area
IDXGIOutput* output = NULL;
IDXGIOutput* selectedOutput = NULL;
uint32_t selected_intersect_area = 0;
for(UINT i = 0; DXGI_ERROR_NOT_FOUND != IDXGIAdapter1_EnumOutputs(threadData->adapter, i, &output); ++i)
{
DXGI_OUTPUT_DESC outputDesc = { 0 };
HRESULT hr = IDXGIOutput_GetDesc(output, &outputDesc);
if(SUCCEEDED(hr))
{
RECT intersectRect = { 0 };
if(IntersectRect(&intersectRect, &windowRect, &outputDesc.DesktopCoordinates))
{
uint32_t outputIntersectArea = (intersectRect.right - intersectRect.left) * (intersectRect.bottom - intersectRect.top);
if(selectedOutput == NULL || outputIntersectArea > selected_intersect_area)
{
selectedOutput = output;
selected_intersect_area = outputIntersectArea;
}
}
}
else
{
oc_log_error("Failed to get IDXGIOutput desc with error: %d", hr);
}
if(selectedOutput != output)
{
IDXGIOutput_Release(output);
}
}
if(selectedOutput)
{
HRESULT hr = IDXGIOutput_WaitForVBlank(selectedOutput);
if(FAILED(hr))
{
// TODO(reuben) - fall back to software timer
oc_log_warning("Failed to wait for vblank with error: %d", hr);
}
SendMessage(windowData->win32.hWnd, OC_WM_USER_VBLANK, 0, 0);
IDXGIOutput_Release(selectedOutput);
}
else
{
oc_log_warning("No outputs found. Were all monitors unplugged?");
}
}
return 0;
}
void oc_vsync_init(void)
{
if(__oc_vsync_data.adapter)
@ -116,7 +33,7 @@ void oc_vsync_init(void)
IDXGIFactory4* factory = NULL;
{
UINT flags = 0;
flags |= DXGI_CREATE_FACTORY_DEBUG; // TODO make this optional
// flags |= DXGI_CREATE_FACTORY_DEBUG; // TODO make this optional
HRESULT hr = CreateDXGIFactory2(flags, &IID_IDXGIFactory4, (void**)&factory);
if(!SUCCEEDED(hr))
@ -163,25 +80,77 @@ void oc_vsync_init(void)
}
else
{
oc_log_info("Couldn't find any DXGI adapters. Vsync will be unavailable.");
oc_log_info("Couldn't find any DXGI adapters - vsync will be unavailable.");
IDXGIFactory_Release(factory);
}
}
void oc_vsync_window(oc_window window)
void oc_vsync_wait(oc_window window)
{
if(__oc_vsync_data.adapter)
{
oc_vsync_thread_data* data = malloc(sizeof(oc_vsync_thread_data));
*data = (oc_vsync_thread_data){
.adapter = __oc_vsync_data.adapter,
.window = window,
.quit = false,
};
oc_thread_create_with_name(oc_window_vysnc_notification_thread, data, OC_STR8("vblank thread"));
oc_window_data* windowData = oc_window_ptr_from_handle(window);
if(!windowData)
{
oc_log_error("Failed to get window ptr - assuming window was closed.");
return;
}
RECT windowRect = { 0 };
if(GetWindowRect(windowData->win32.hWnd, &windowRect) == FALSE)
{
oc_log_error("Failed to get window rect with error: %d.", GetLastError());
return;
}
// Wait for VBlank on the display device with which the window has the most intersecting area
IDXGIOutput* output = NULL;
IDXGIOutput* selectedOutput = NULL;
uint32_t selected_intersect_area = 0;
for(UINT i = 0; DXGI_ERROR_NOT_FOUND != IDXGIAdapter1_EnumOutputs(__oc_vsync_data.adapter, i, &output); ++i)
{
DXGI_OUTPUT_DESC outputDesc = { 0 };
HRESULT hr = IDXGIOutput_GetDesc(output, &outputDesc);
if(SUCCEEDED(hr))
{
RECT intersectRect = { 0 };
if(IntersectRect(&intersectRect, &windowRect, &outputDesc.DesktopCoordinates))
{
uint32_t outputIntersectArea = (intersectRect.right - intersectRect.left) * (intersectRect.bottom - intersectRect.top);
if(selectedOutput == NULL || outputIntersectArea > selected_intersect_area)
{
selectedOutput = output;
selected_intersect_area = outputIntersectArea;
}
}
}
else
{
oc_log_error("No DXGI adapter available - unable to start vsync notification thread.");
oc_log_error("Failed to get IDXGIOutput desc with error: %d", hr);
}
if(selectedOutput != output)
{
IDXGIOutput_Release(output);
}
}
if(selectedOutput)
{
HRESULT hr = IDXGIOutput_WaitForVBlank(selectedOutput);
if(FAILED(hr))
{
// TODO(reuben) - fall back to software timer
oc_log_warning("Failed to wait for vblank with error: %d", hr);
}
IDXGIOutput_Release(selectedOutput);
}
else
{
oc_log_warning("No outputs found. Were all monitors unplugged?");
}
}
}

17
src/runtime.c
View File

@ -676,19 +676,6 @@ i32 orca_runloop(void* user)
}
break;
case OC_EVENT_FRAME:
{
if(exports[OC_EXPORT_FRAME_REFRESH])
{
M3Result res = m3_Call(exports[OC_EXPORT_FRAME_REFRESH], 0, 0);
if(res)
{
ORCA_WASM3_ABORT(app->runtime.m3Runtime, res, "Runtime error");
}
}
}
break;
default:
break;
}
@ -851,6 +838,8 @@ i32 orca_runloop(void* user)
oc_surface_present(app->debugOverlay.surface);
oc_arena_clear(oc_scratch());
oc_vsync_wait(app->window);
}
if(exports[OC_EXPORT_TERMINATE])
@ -880,8 +869,6 @@ int main(int argc, char** argv)
oc_rect windowRect = { .x = 100, .y = 100, .w = 810, .h = 610 };
app->window = oc_window_create(windowRect, OC_STR8("orca"), 0);
oc_vsync_window(app->window);
app->debugOverlay.show = false;
app->debugOverlay.surface = oc_surface_create_for_window(app->window, OC_CANVAS);
app->debugOverlay.canvas = oc_canvas_create();