From 13ae5dee54976fe6540d75b0bcace0a33379d1e6 Mon Sep 17 00:00:00 2001 From: Caleb Cornett Date: Sun, 24 Sep 2023 21:20:04 -0500 Subject: [PATCH] Implement ClaimWindow, mostly copied from Vulkan and FNA3D D3D11 --- src/Refresh_Driver_D3D11.c | 210 +++++++++++++++++++++++++++++++++++-- 1 file changed, 204 insertions(+), 6 deletions(-) diff --git a/src/Refresh_Driver_D3D11.c b/src/Refresh_Driver_D3D11.c index e0a1178..e6cdc6a 100644 --- a/src/Refresh_Driver_D3D11.c +++ b/src/Refresh_Driver_D3D11.c @@ -46,7 +46,7 @@ #define D3D11_CREATE_DEVICE_FUNC "D3D11CreateDevice" #define D3DCOMPILE_FUNC "D3DCompile" #define CREATE_DXGI_FACTORY1_FUNC "CreateDXGIFactory1" -#define WINDOW_SWAPCHAIN_DATA "Refresh_D3D11Swapchain" +#define WINDOW_DATA "Refresh_D3D11WindowData" #define NOT_IMPLEMENTED SDL_assert(0 && "Not implemented!"); @@ -83,7 +83,7 @@ typedef HRESULT(WINAPI *PFN_D3DCOMPILE)( /* Conversions */ -static DXGI_FORMAT RefreshToD3D11_SurfaceFormat[] = +static DXGI_FORMAT RefreshToD3D11_TextureFormat[] = { DXGI_FORMAT_R8G8B8A8_UNORM, /* R8G8B8A8 */ DXGI_FORMAT_B8G8R8A8_UNORM, /* B8G8R8A8 */ @@ -233,6 +233,19 @@ static D3D11_TEXTURE_ADDRESS_MODE RefreshToD3D11_SamplerAddressMode[] = /* Structs */ +typedef struct SwapchainData +{ + IDXGISwapChain *swapchain; + ID3D11RenderTargetView *swapchainRTView; +} SwapchainData; + +typedef struct WindowData +{ + void* windowHandle; + uint8_t allowTearing; + SwapchainData *swapchainData; +} WindowData; + typedef struct D3D11Renderer { ID3D11Device *device; @@ -244,8 +257,12 @@ typedef struct D3D11Renderer void *d3dcompiler_dll; uint8_t debugMode; - D3D_FEATURE_LEVEL featureLevel; + D3D_FEATURE_LEVEL featureLevel; /* FIXME: Do we need this? */ PFN_D3DCOMPILE D3DCompileFunc; + + WindowData **claimedWindows; + uint32_t claimedWindowCount; + uint32_t claimedWindowCapacity; } D3D11Renderer; /* Logging */ @@ -693,13 +710,195 @@ static void D3D11_BindComputeTextures( /* Window and Swapchain Management */ +static WindowData* D3D11_INTERNAL_FetchWindowData( + void *windowHandle +) { + return (WindowData*) SDL_GetWindowData(windowHandle, WINDOW_DATA); +} + +static void D3D11_INTERNAL_ResolveSwapChainModeDescription( + IUnknown *device, + IDXGIAdapter *adapter, + IDXGIFactory1 *factory, + HWND window, + DXGI_MODE_DESC *modeDescription, + DXGI_MODE_DESC *swapChainDescription +) { + HMONITOR monitor; + int iAdapter = 0, iOutput; + IDXGIAdapter1* pAdapter; + IDXGIOutput *output; + DXGI_OUTPUT_DESC description; + + /* Find the output (on any adapter) attached to the monitor that holds our window */ + monitor = MonitorFromWindow(window, MONITOR_DEFAULTTOPRIMARY); + while (SUCCEEDED(IDXGIFactory1_EnumAdapters1(factory, iAdapter++, &pAdapter))) + { + iOutput = 0; + while (SUCCEEDED(IDXGIAdapter_EnumOutputs(pAdapter, iOutput++, &output))) + { + IDXGIOutput_GetDesc(output, &description); + if (description.Monitor == monitor) + { + if (SUCCEEDED(IDXGIOutput_FindClosestMatchingMode(output, modeDescription, swapChainDescription, device))) + { + IDXGIOutput_Release(output); + IDXGIAdapter1_Release(pAdapter); + return; + } + } + IDXGIOutput_Release(output); + } + IDXGIAdapter1_Release(pAdapter); + } +} + +static uint8_t D3D11_INTERNAL_CreateSwapchain( + D3D11Renderer *renderer, + WindowData *windowData +) { + SDL_SysWMinfo info; + HWND dxgiHandle; + DXGI_MODE_DESC swapchainBufferDesc; + DXGI_SWAP_CHAIN_DESC swapchainDesc; + IDXGIFactory1 *pParent; + IDXGISwapChain *swapchain; + SwapchainData *swapchainData; + HRESULT res; + + /* Get the DXGI handle */ + SDL_VERSION(&info.version); + SDL_GetWindowWMInfo((SDL_Window*) windowData->windowHandle, &info); + dxgiHandle = info.info.win.window; + + /* Initialize the swapchain buffer descriptor */ + swapchainBufferDesc.Width = 0; + swapchainBufferDesc.Height = 0; + swapchainBufferDesc.RefreshRate.Numerator = 0; + swapchainBufferDesc.RefreshRate.Denominator = 0; + swapchainBufferDesc.Format = RefreshToD3D11_TextureFormat[REFRESH_TEXTUREFORMAT_R8G8B8A8]; + swapchainBufferDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED; + swapchainBufferDesc.Scaling = DXGI_MODE_SCALING_UNSPECIFIED; + + /* Get the closest matching mode we can from the current monitor */ + D3D11_INTERNAL_ResolveSwapChainModeDescription( + (IUnknown*) renderer->device, + (IDXGIAdapter*) renderer->adapter, + (IDXGIFactory1*) renderer->factory, + dxgiHandle, + &swapchainBufferDesc, + &swapchainDesc.BufferDesc + ); + + /* Initialize the swapchain descriptor */ + swapchainDesc.BufferDesc = swapchainBufferDesc; /* FIXME: I think this is wrong, and it's wrong in FNA3D too! */ + swapchainDesc.SampleDesc.Count = 1; + swapchainDesc.SampleDesc.Quality = 0; + swapchainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT; + swapchainDesc.BufferCount = 3; + swapchainDesc.OutputWindow = dxgiHandle; + swapchainDesc.Windowed = 1; + swapchainDesc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD; + swapchainDesc.Flags = 0; + + /* Create the swapchain! */ + res = IDXGIFactory1_CreateSwapChain( + (IDXGIFactory1*) renderer->factory, + (IUnknown*) renderer->device, + &swapchainDesc, + &swapchain + ); + ERROR_CHECK("Could not create swapchain"); + + /* + * The swapchain's parent is a separate factory from the factory that + * we used to create the swapchain, and only that parent can be used to + * set the window association. Trying to set an association on our factory + * will silently fail and doesn't even verify arguments or return errors. + * See https://gamedev.net/forums/topic/634235-dxgidisabling-altenter/4999955/ + */ + res = IDXGISwapChain_GetParent( + swapchain, + &D3D_IID_IDXGIFactory1, + (void**) &pParent + ); + if (FAILED(res)) + { + Refresh_LogWarn( + "Could not get swapchain parent! Error Code: %08X", + res + ); + } + else + { + /* Disable DXGI window crap */ + res = IDXGIFactory1_MakeWindowAssociation( + pParent, + dxgiHandle, + DXGI_MWA_NO_WINDOW_CHANGES + ); + if (FAILED(res)) + { + Refresh_LogWarn( + "MakeWindowAssociation failed! Error Code: %08X", + res + ); + } + } + + /* Create the swapchain data */ + swapchainData = (SwapchainData*) SDL_malloc(sizeof(SwapchainData)); + swapchainData->swapchain = swapchain; + swapchainData->swapchainRTView = NULL; + + windowData->swapchainData = swapchainData; + return 1; +} + static uint8_t D3D11_ClaimWindow( Refresh_Renderer *driverData, void *windowHandle, Refresh_PresentMode presentMode ) { - NOT_IMPLEMENTED - return 0; + D3D11Renderer *renderer = (D3D11Renderer*) driverData; + WindowData *windowData = D3D11_INTERNAL_FetchWindowData(windowHandle); + + if (windowData == NULL) + { + windowData = (WindowData*) SDL_malloc(sizeof(WindowData)); + windowData->windowHandle = windowHandle; + windowData->allowTearing = presentMode == REFRESH_PRESENTMODE_IMMEDIATE; + + if (D3D11_INTERNAL_CreateSwapchain(renderer, windowData)) + { + SDL_SetWindowData((SDL_Window*) windowHandle, WINDOW_DATA, windowData); + + if (renderer->claimedWindowCount >= renderer->claimedWindowCapacity) + { + renderer->claimedWindowCapacity *= 2; + renderer->claimedWindows = SDL_realloc( + renderer->claimedWindows, + renderer->claimedWindowCapacity * sizeof(WindowData*) + ); + } + + renderer->claimedWindows[renderer->claimedWindowCount] = windowData; + renderer->claimedWindowCount += 1; + + return 1; + } + else + { + Refresh_LogError("Could not create swapchain, failed to claim window!"); + SDL_free(windowData); + return 0; + } + } + else + { + Refresh_LogWarn("Window already claimed!"); + return 0; + } } static uint8_t D3D11_UnclaimWindow( @@ -725,7 +924,6 @@ static Refresh_TextureFormat D3D11_GetSwapchainFormat( Refresh_Renderer *driverData, void *windowHandle ) { - NOT_IMPLEMENTED return REFRESH_TEXTUREFORMAT_R8G8B8A8; }