Implement ClaimWindow, mostly copied from Vulkan and FNA3D D3D11

src/Refresh_Driver_D3D11.c

@@ -43,7 +43,10 @@
 
 #define D3D11_DLL "d3d11.dll"
 #define DXGI_DLL "dxgi.dll"
-#define WINDOW_SWAPCHAIN_DATA "Refresh_D3D11Swapchain"
+#define D3D11_CREATE_DEVICE_FUNC "D3D11CreateDevice"
+#define D3DCOMPILE_FUNC "D3DCompile"
+#define CREATE_DXGI_FACTORY1_FUNC "CreateDXGIFactory1"
+#define WINDOW_DATA "Refresh_D3D11WindowData"
 
 #define NOT_IMPLEMENTED SDL_assert(0 && "Not implemented!");
 
@@ -80,7 +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 */
@@ -230,133 +233,36 @@ static D3D11_TEXTURE_ADDRESS_MODE RefreshToD3D11_SamplerAddressMode[] =
 
 /* Structs */
 
-typedef struct D3D11Texture
+typedef struct SwapchainData
 {
-	/* D3D Handles */
-	ID3D11Resource *handle; /* ID3D11Texture2D* or ID3D11Texture3D* */
-	ID3D11ShaderResourceView *shaderView;
+	IDXGISwapChain *swapchain;
+	ID3D11RenderTargetView *swapchainRTView;
+} SwapchainData;
 
-	/* Basic Info */
-	int32_t levelCount;
-	uint8_t isRenderTarget;
-
-	/* Dimensions */
-	#define REFRESH_D3D11_RENDERTARGET_2D 0
-	#define REFRESH_D3D11_RENDERTARGET_3D 1
-	#define REFRESH_D3D11_RENDERTARGET_CUBE 2
-	uint8_t rtType;
-	REFRESHNAMELESS union
-	{
-		struct
-		{
-			int32_t width;
-			int32_t height;
-			ID3D11View *targetView;	/* ID3D11RenderTargetView* or ID3D11DepthStencilView* */
-		} twod;
-		struct
-		{
-			int32_t width;
-			int32_t height;
-			int32_t depth;
-		} threed;
-		struct
-		{
-			int32_t size;
-			ID3D11RenderTargetView **rtViews;
-		} cube;
-	};
-} D3D11Texture;
-
-typedef struct D3D11Buffer
+typedef struct WindowData
 {
-	ID3D11Buffer *handle;
-} D3D11Buffer;
-
-typedef struct D3D11SwapchainData
-{
-	IDXGISwapChain* swapchain;
-	D3D11Texture refreshTexture;
 	void* windowHandle;
-} D3D11SwapchainData;
-
-typedef struct D3D11CommandBuffer
-{
-	/* D3D11 Object References */
-	ID3D11DeviceContext *context;
-	ID3D11CommandList *commandList;
-	D3D11SwapchainData *swapchainData;
-
-	/* Render Pass */
-	uint8_t numBoundColorAttachments;
-	ID3D11RenderTargetView *rtViews[MAX_COLOR_TARGET_BINDINGS];
-	ID3D11DepthStencilView* dsView;
-
-	/* State */
-	SDL_threadID threadID;
-	uint8_t recording;
-} D3D11CommandBuffer;
-
-typedef struct D3D11CommandBufferPool
-{
-	D3D11CommandBuffer **elements;
-	uint32_t count;
-	uint32_t capacity;
-} D3D11CommandBufferPool;
-
-typedef struct D3D11ShaderModule
-{
-	ID3D11DeviceChild *shader; /* ID3D11VertexShader, ID3D11PixelShader, ID3D11ComputeShader */
-	ID3D10Blob *blob;
-	char *shaderSource;
-	size_t shaderSourceLength;
-} D3D11ShaderModule;
-
-typedef struct D3D11GraphicsPipeline
-{
-	float blendConstants[4];
-
-	int32_t numColorAttachments;
-	int32_t colorAttachmentSampleCounts[MAX_COLOR_TARGET_BINDINGS];
-	DXGI_FORMAT colorAttachmentFormats[MAX_COLOR_TARGET_BINDINGS];
-	ID3D11BlendState *colorAttachmentBlendState;
-
-	uint8_t hasDepthStencilAttachment;
-	DXGI_FORMAT depthStencilAttachmentFormat;
-
-	D3D11_PRIMITIVE_TOPOLOGY primitiveTopology;
-	uint32_t stencilRef;
-	ID3D11DepthStencilState *depthStencilState;
-	ID3D11RasterizerState *rasterizerState;
-	ID3D11InputLayout *inputLayout;
-
-	Refresh_MultisampleState multisampleState;
-	ID3D11VertexShader *vertexShader;
-	ID3D11PixelShader *fragmentShader;
-} D3D11GraphicsPipeline;
+	uint8_t allowTearing;
+	SwapchainData *swapchainData;
+} WindowData;
 
 typedef struct D3D11Renderer
 {
 	ID3D11Device *device;
 	ID3D11DeviceContext *immediateContext;
 	IDXGIFactory1 *factory;
-	IDXGIAdapter1* adapter;
+	IDXGIAdapter1 *adapter;
 	void *d3d11_dll;
 	void *dxgi_dll;
 	void *d3dcompiler_dll;
-	SDL_mutex *contextLock;
-
-	D3D11CommandBufferPool *commandBufferPool;
-	SDL_mutex *commandBufferAcquisitionMutex;
-
-	D3D11SwapchainData** swapchainDatas;
-	uint32_t swapchainDataCount;
-	uint32_t swapchainDataCapacity;
-
-	Refresh_Vec4 blendFactor;
 
 	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 */
@@ -804,13 +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(
@@ -836,7 +924,6 @@ static Refresh_TextureFormat D3D11_GetSwapchainFormat(
 	Refresh_Renderer *driverData,
 	void *windowHandle
 ) {
-	NOT_IMPLEMENTED
 	return REFRESH_TEXTUREFORMAT_R8G8B8A8;
 }
 
@@ -900,7 +987,99 @@ static void D3D11_ReleaseFence(
 static uint8_t D3D11_PrepareDriver(
 	uint32_t *flags
 ) {
-	/* Nothing to do here. */
+	void *d3d11_dll, *d3dcompiler_dll, *dxgi_dll;
+	PFN_D3D11_CREATE_DEVICE D3D11CreateDeviceFunc;
+	D3D_FEATURE_LEVEL levels[] = { D3D_FEATURE_LEVEL_11_0 };
+	PFN_D3DCOMPILE D3DCompileFunc;
+	PFN_CREATE_DXGI_FACTORY1 CreateDXGIFactoryFunc;
+	HRESULT res;
+
+	/* Can we load D3D11? */
+
+	d3d11_dll = SDL_LoadObject(D3D11_DLL);
+	if (d3d11_dll == NULL)
+	{
+		Refresh_LogWarn("D3D11: Could not find " D3D11_DLL);
+		return 0;
+	}
+
+	D3D11CreateDeviceFunc = (PFN_D3D11_CREATE_DEVICE) SDL_LoadFunction(
+		d3d11_dll,
+		D3D11_CREATE_DEVICE_FUNC
+	);
+	if (D3D11CreateDeviceFunc == NULL)
+	{
+		Refresh_LogWarn("D3D11: Could not find function " D3D11_CREATE_DEVICE_FUNC " in " D3D11_DLL);
+		SDL_UnloadObject(d3d11_dll);
+		return 0;
+	}
+
+	/* Can we create a device? */
+
+	res = D3D11CreateDeviceFunc(
+		NULL,
+		D3D_DRIVER_TYPE_HARDWARE,
+		NULL,
+		D3D11_CREATE_DEVICE_BGRA_SUPPORT,
+		levels,
+		SDL_arraysize(levels),
+		D3D11_SDK_VERSION,
+		NULL,
+		NULL,
+		NULL
+	);
+
+	SDL_UnloadObject(d3d11_dll);
+
+	if (FAILED(res))
+	{
+		Refresh_LogWarn("D3D11: Could not create D3D11Device with feature level 11_0");
+		return 0;
+	}
+
+	/* Can we load D3DCompiler? */
+
+	d3dcompiler_dll = SDL_LoadObject(D3DCOMPILER_DLL);
+	if (d3dcompiler_dll == NULL)
+	{
+		Refresh_LogWarn("D3D11: Could not find " D3DCOMPILER_DLL);
+		return 0;
+	}
+
+	D3DCompileFunc = (PFN_D3DCOMPILE) SDL_LoadFunction(
+		d3dcompiler_dll,
+		D3DCOMPILE_FUNC
+	);
+	SDL_UnloadObject(d3dcompiler_dll); /* We're not going to call this function, so we can just unload now. */
+	if (D3DCompileFunc == NULL)
+	{
+		Refresh_LogWarn("D3D11: Could not find function " D3DCOMPILE_FUNC " in " D3DCOMPILER_DLL);
+		return 0;
+	}
+
+	/* Can we load DXGI? */
+
+	dxgi_dll = SDL_LoadObject(DXGI_DLL);
+	if (dxgi_dll == NULL)
+	{
+		Refresh_LogWarn("D3D11: Could not find " DXGI_DLL);
+		return 0;
+	}
+
+	CreateDXGIFactoryFunc = (PFN_CREATE_DXGI_FACTORY1) SDL_LoadFunction(
+		dxgi_dll,
+		CREATE_DXGI_FACTORY1_FUNC
+	);
+	SDL_UnloadObject(dxgi_dll); /* We're not going to call this function, so we can just unload now. */
+	if (CreateDXGIFactoryFunc == NULL)
+	{
+		Refresh_LogWarn("D3D11: Could not find function " CREATE_DXGI_FACTORY1_FUNC " in " DXGI_DLL);
+		return 0;
+	}
+
+	/* No window flags required */
+	SDL_SetHint(SDL_HINT_VIDEO_EXTERNAL_CONTEXT, "1");
+
 	return 1;
 }
 
@@ -908,10 +1087,10 @@ static Refresh_Device* D3D11_CreateDevice(
 	uint8_t debugMode
 ) {
 	D3D11Renderer *renderer;
-	PFN_CREATE_DXGI_FACTORY CreateDXGIFactoryFunc;
+	PFN_CREATE_DXGI_FACTORY1 CreateDXGIFactoryFunc;
 	PFN_D3D11_CREATE_DEVICE D3D11CreateDeviceFunc;
 	D3D_FEATURE_LEVEL levels[] = { D3D_FEATURE_LEVEL_11_0 };
-	void* factory6;
+	IDXGIFactory6 *factory6;
 	uint32_t flags;
 	DXGI_ADAPTER_DESC1 adapterDesc;
 	HRESULT res;
@@ -931,11 +1110,11 @@ static Refresh_Device* D3D11_CreateDevice(
 	/* Load the D3DCompile function pointer */
 	renderer->D3DCompileFunc = (PFN_D3DCOMPILE) SDL_LoadFunction(
 		renderer->d3dcompiler_dll,
-		"D3DCompile"
+		D3DCOMPILE_FUNC
 	);
 	if (renderer->D3DCompileFunc == NULL)
 	{
-		Refresh_LogError("Could not load D3DCompile function!");
+		Refresh_LogError("Could not load function: " D3DCOMPILE_FUNC);
 		return NULL;
 	}
 
@@ -947,14 +1126,14 @@ static Refresh_Device* D3D11_CreateDevice(
 		return NULL;
 	}
 
-	/* Load the CreateDXGIFactory function */
-	CreateDXGIFactoryFunc = (PFN_CREATE_DXGI_FACTORY) SDL_LoadFunction(
+	/* Load the CreateDXGIFactory1 function */
+	CreateDXGIFactoryFunc = (PFN_CREATE_DXGI_FACTORY1) SDL_LoadFunction(
 		renderer->dxgi_dll,
-		"CreateDXGIFactory1"
+		CREATE_DXGI_FACTORY1_FUNC
 	);
 	if (CreateDXGIFactoryFunc == NULL)
 	{
-		Refresh_LogError("Could not load CreateDXGIFactory1 function!");
+		Refresh_LogError("Could not load function: " CREATE_DXGI_FACTORY1_FUNC);
 		return NULL;
 	}
 
@@ -974,7 +1153,7 @@ static Refresh_Device* D3D11_CreateDevice(
 	if (SUCCEEDED(res))
 	{
 		IDXGIFactory6_EnumAdapterByGpuPreference(
-			(IDXGIFactory6*) factory6,
+			factory6,
 			0,
 			DXGI_GPU_PREFERENCE_HIGH_PERFORMANCE,
 			&D3D_IID_IDXGIAdapter1,
@@ -1004,11 +1183,11 @@ static Refresh_Device* D3D11_CreateDevice(
 	/* Load the CreateDevice function */
 	D3D11CreateDeviceFunc = (PFN_D3D11_CREATE_DEVICE) SDL_LoadFunction(
 		renderer->d3d11_dll,
-		"D3D11CreateDevice"
+		D3D11_CREATE_DEVICE_FUNC
 	);
 	if (D3D11CreateDeviceFunc == NULL)
 	{
-		Refresh_LogError("Could not load D3D11CreateDevice function!");
+		Refresh_LogError("Could not load function: " D3D11_CREATE_DEVICE_FUNC);
 		return NULL;
 	}
 
@@ -1022,7 +1201,7 @@ static Refresh_Device* D3D11_CreateDevice(
 	/* Create the device */
 tryCreateDevice:
 	res = D3D11CreateDeviceFunc(
-		(IDXGIAdapter*)renderer->adapter,
+		(IDXGIAdapter*) renderer->adapter,
 		D3D_DRIVER_TYPE_UNKNOWN, /* Must be UNKNOWN if adapter is non-null according to spec */
 		NULL,
 		flags,
@@ -1048,27 +1227,12 @@ tryCreateDevice:
 	Refresh_LogInfo("Refresh Driver: D3D11");
 	Refresh_LogInfo("D3D11 Adapter: %S", adapterDesc.Description);
 
-	/* Create the command buffer pool */
-	renderer->commandBufferPool = (D3D11CommandBufferPool*) SDL_calloc(
-		1,
-		sizeof(D3D11CommandBufferPool)
-	);
-
-	/* Create mutexes */
-	renderer->contextLock = SDL_CreateMutex();
-	renderer->commandBufferAcquisitionMutex = SDL_CreateMutex();
-
 	/* Initialize miscellaneous renderer members */
 	renderer->debugMode = (flags & D3D11_CREATE_DEVICE_DEBUG);
-	renderer->blendFactor.x = 1.0f;
-	renderer->blendFactor.y = 1.0f;
-	renderer->blendFactor.z = 1.0f;
-	renderer->blendFactor.w = 1.0f;
 
 	/* Create the Refresh Device */
 	result = (Refresh_Device*) SDL_malloc(sizeof(Refresh_Device));
 	ASSIGN_DRIVER(D3D11)
-
 	result->driverData = (Refresh_Renderer*) renderer;
 
 	return result;

src/Refresh_Driver_D3D11_cdefines.h

@@ -25,7 +25,7 @@
  */
 
 /* Function Pointer Signatures */
-typedef HRESULT(WINAPI* PFN_CREATE_DXGI_FACTORY)(const GUID* riid, void** ppFactory);
+typedef HRESULT(WINAPI* PFN_CREATE_DXGI_FACTORY1)(const GUID* riid, void** ppFactory);
 
  /* IIDs (from https://magnumdb.com) */