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WinRT: moved a bit more Direct3D 11.1 code into the SDL_Renderer backend

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David Ludwig 2013-02-02 21:05:32 -05:00
parent f7b08ae60b
commit b9299763b6
7 changed files with 72 additions and 41 deletions
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49
src/render/direct3d11/SDL_render_d3d11.cpp
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@ -62,7 +62,7 @@ static int D3D11_UpdateViewport(SDL_Renderer * renderer);
// const double angle, const SDL_FPoint * center, const SDL_RendererFlip flip);
//static int D3D11_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect,
// Uint32 format, void * pixels, int pitch);
//static void D3D11_RenderPresent(SDL_Renderer * renderer);
static void D3D11_RenderPresent(SDL_Renderer * renderer);
//static void D3D11_DestroyTexture(SDL_Renderer * renderer,
// SDL_Texture * texture);
//static void D3D11_DestroyRenderer(SDL_Renderer * renderer);
@ -135,7 +135,7 @@ D3D11_CreateRenderer(SDL_Window * window, Uint32 flags)
//renderer->RenderCopy = D3D11_RenderCopy;
//renderer->RenderCopyEx = D3D11_RenderCopyEx;
//renderer->RenderReadPixels = D3D11_RenderReadPixels;
//renderer->RenderPresent = D3D11_RenderPresent;
renderer->RenderPresent = D3D11_RenderPresent;
//renderer->DestroyTexture = D3D11_DestroyTexture;
//renderer->DestroyRenderer = D3D11_DestroyRenderer;
renderer->info = D3D11_RenderDriver.info;
@ -286,6 +286,51 @@ D3D11_UpdateViewport(SDL_Renderer * renderer)
return 0;
}
static void
D3D11_RenderPresent(SDL_Renderer * renderer)
{
D3D11_RenderData *data = (D3D11_RenderData *) renderer->driverdata;
#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
// The first argument instructs DXGI to block until VSync, putting the application
// to sleep until the next VSync. This ensures we don't waste any cycles rendering
// frames that will never be displayed to the screen.
HRESULT hr = data->swapChain->Present(1, 0);
#else
// The application may optionally specify "dirty" or "scroll"
// rects to improve efficiency in certain scenarios.
// This option is not available on Windows Phone 8, to note.
DXGI_PRESENT_PARAMETERS parameters = {0};
parameters.DirtyRectsCount = 0;
parameters.pDirtyRects = nullptr;
parameters.pScrollRect = nullptr;
parameters.pScrollOffset = nullptr;
// The first argument instructs DXGI to block until VSync, putting the application
// to sleep until the next VSync. This ensures we don't waste any cycles rendering
// frames that will never be displayed to the screen.
HRESULT hr = data->swapChain->Present1(1, 0, &parameters);
#endif
// Discard the contents of the render target.
// This is a valid operation only when the existing contents will be entirely
// overwritten. If dirty or scroll rects are used, this call should be removed.
data->d3dContext->DiscardView(data->renderTargetView.Get());
// If the device was removed either by a disconnect or a driver upgrade, we
// must recreate all device resources.
if (hr == DXGI_ERROR_DEVICE_REMOVED)
{
extern void WINRT_HandleDeviceLost(); // TODO, WinRT: move lost-device handling into the Direct3D 11.1 renderer, as appropriate
WINRT_HandleDeviceLost();
}
else
{
WIN_SetErrorFromHRESULT(__FUNCTION__, hr);
// TODO, WinRT: consider throwing an exception if D3D11_RenderPresent fails, especially if there is a way to salvedge debug info from users' machines
}
}
#endif /* SDL_VIDEO_RENDER_D3D && !SDL_RENDER_DISABLED */
/* vi: set ts=4 sw=4 expandtab: */