Directx11 非常全的教程 chm+源码

#include "D3DClass.h" D3DClass::D3DClass(void) { m_swapChain = 0; m_device = 0; m_deviceContext = 0; m_renderTargetView = 0; m_depthStencilBuffer = 0; m_depthStencilState = 0; m_depthStencilView = 0; m_rasterState = 0; } D3DClass::D3DClass(const D3DClass& other) { } D3DClass::~D3DClass(void) { } //Initialize函数包含完成D3D设置的所有代码。 bool D3DClass::Initialize(int screenWidth, int screenHeight, bool vsync, HWND hwnd, bool fullscreen, float screenDepth, float screenNear) { HRESULT result; IDXGIFactory* factory; IDXGIAdapter* adapter; IDXGIOutput* adapterOutput; unsigned int numModes, i, numerator=0, denominator=1, stringLength; DXGI_MODE_DESC* displayModeList; DXGI_ADAPTER_DESC adapterDesc; int error; DXGI_SWAP_CHAIN_DESC swapChainDesc; D3D_FEATURE_LEVEL featureLevel; ID3D11Texture2D* backBufferPtr; D3D11_TEXTURE2D_DESC depthBufferDesc; D3D11_DEPTH_STENCIL_DESC depthStencilDesc; D3D11_DEPTH_STENCIL_VIEW_DESC depthStencilViewDesc; D3D11_RASTERIZER_DESC rasterDesc; D3D11_VIEWPORT viewport; float fieldOfView, screenAspect; // 保存垂直同步设置 m_vsync_enabled = vsync; // 创建一个DirectX graphics interface factory. result = CreateDXGIFactory(__uuidof(IDXGIFactory), (void**)&factory); if(FAILED(result)) { HR(result); return false; } // 用接口工厂创建一个主显卡的适配 result = factory->EnumAdapters(0, &adapter); if(FAILED(result)) { HR(result); return false; } // 得到主适配器的输出. result = adapter->EnumOutputs(0, &adapterOutput); if(FAILED(result)) { HR(result); return false; } //得到适合 DXGI_FORMAT_R8G8B8A8_UNORM 的显示模式. result = adapterOutput->GetDisplayModeList(DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_ENUM_MODES_INTERLACED, &numModes, NULL); if(FAILED(result)) { HR(result); return false; } displayModeList = new DXGI_MODE_DESC[numModes]; if(!displayModeList) { HR(result); return false; } // 保存显示模式到displayModeList中 result = adapterOutput->GetDisplayModeList(DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_ENUM_MODES_INTERLACED, &numModes, displayModeList); if(FAILED(result)) { HR(result); return false; } //遍历所有显示模式，得到刷新率两个参数值numerator 和 denominato for(i=0; i<numModes; i++) { if(displayModeList[i].Width == (unsigned int)screenWidth) { if(displayModeList[i].Height == (unsigned int)screenHeight) { numerator = displayModeList[i].RefreshRate.Numerator; denominator = displayModeList[i].RefreshRate.Denominator; } } } // 得到显卡描述 result = adapter->GetDesc(&adapterDesc); if(FAILED(result)) { HR(result); return false; } // 保存显存大小. m_videoCardMemory = (int)(adapterDesc.DedicatedVideoMemory / 1024 / 1024); //保存显卡描述串 //wcstombs_s, wide char转化为char error = wcstombs_s(&stringLength, m_videoCardDescription, 128, adapterDesc.Description, 128); if(error != 0) { HR(result); return false; } //// 释放显示模式列表 //delete [] displayModeList; //displayModeList = 0; ////释放适配器输出. //adapterOutput->Release(); //adapterOutput = 0; ////释放适配器 //adapter->Release(); //adapter = 0; //// 释放接口工厂. //factory->Release(); //factory = 0; //如果屏幕高度或者宽度为0，则会创建深度缓冲失败， //当窗口最小化时候，会出现窗口为0的情况。 if(screenWidth < 1) screenWidth = 1; if(screenHeight <1) screenHeight = 1; // 初始化交换链描述 ZeroMemory(&swapChainDesc, sizeof(swapChainDesc)); // 用1个后缓冲 swapChainDesc.BufferCount = 1; //帧缓冲的大小和应用程序窗口大小相等. swapChainDesc.BufferDesc.Width = screenWidth; swapChainDesc.BufferDesc.Height = screenHeight; // 后缓冲的surface的格式为DXGI_FORMAT_R8G8B8A8_UNORM. // surface的每个像素用4个无符号的8bit[映射到0-1]来表示。NORM表示归一化。 swapChainDesc.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM; // 如果使用垂直同步，设置后缓冲的刷新率。. //刷新率就是一秒钟把后缓冲内容在屏幕上画出的次数。 //如果开启垂直同步，则锁定刷新率，则fps是固定的 if(m_vsync_enabled) { swapChainDesc.BufferDesc.RefreshRate.Numerator = numerator; swapChainDesc.BufferDesc.RefreshRate.Denominator = denominator; } else { swapChainDesc.BufferDesc.RefreshRate.Numerator = 0; swapChainDesc.BufferDesc.RefreshRate.Denominator = 1; } // 设置后缓冲的用途 // 我们的渲染目标缓冲为后缓冲。 swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT; // 后缓冲输出的窗口句柄. swapChainDesc.OutputWindow = hwnd; // 不使用多重采样 swapChainDesc.SampleDesc.Count = 1; swapChainDesc.SampleDesc.Quality = 0; // 设置全屏或者窗口模式. if(fullscreen) { swapChainDesc.Windowed = false; } else { swapChainDesc.Windowed = true; } // 设定扫描线ordering以及缩放为unspecified. swapChainDesc.BufferDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED; swapChainDesc.BufferDesc.Scaling = DXGI_MODE_SCALING_UNSPECIFIED; // 后缓冲内容呈现到屏幕后，放弃其内容 swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD; //不设置标志 swapChainDesc.Flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH ; // 设置feature level为D3D11 // 如果显卡不支持D3D11,我们能够通过设置这个参数，使用D3D10,或者9. featureLevel = D3D_FEATURE_LEVEL_11_0; //在debug模式下，使得创建的设备支持debug. UINT createDeviceFlags = 0; #if defined(DEBUG) || defined(_DEBUG) createDeviceFlags |= D3D11_CREATE_DEVICE_DEBUG; #endif // 创建交换链，设备以及设备上下文. //result = D3D11CreateDeviceAndSwapChain(NULL, D3D_DRIVER_TYPE_HARDWARE, NULL,createDeviceFlags, &featureLevel, 1, // D3D11_SDK_VERSION, &swapChainDesc, &m_swapChain, &m_device, NULL, &m_deviceContext); //if(FAILED(result)) // { // HR(result); // return false; // } ////禁止DXGI监视消息队列，捕捉ALT+ENTER，在全屏和窗口模式之间切换 //factory->MakeWindowAssociation(hwnd,DXGI_MWA_NO_WINDOW_CHANGES|DXGI_MWA_NO_ALT_ENTER ); //分开创建device和交换链，可以屏蔽dxgi自动的hook alt+enter //注意的两点：如果用第一个参数用NULL,第二个参数为D3D_DRIVER_TYPE_HARDWARE，则后面创建swapchain //会fail，如果直接用adapter，不改变第二个参数，则会提示创建设备失败，adapter无效。 result = D3D11CreateDevice(adapter,D3D_DRIVER_TYPE_UNKNOWN, NULL,createDeviceFlags, &featureLevel, 1, D3D11_SDK_VERSION, &m_device, NULL, &m_deviceContext ); if(FAILED(result)) { HR(result); return false; } //创建交换链 result = factory->CreateSwapChain(m_device,&swapChainDesc, &m_swapChain); if(FAILED(result)) { HR(result); return false; } //禁止DXGI监视消息队列，捕捉ALT+ENTER，在全屏和窗口模式之间切换 factory->MakeWindowAssociation(hwnd,DXGI_MWA_NO_WINDOW_CHANGES|DXGI_MWA_NO_ALT_ENTER ); // 释放显示模式列表 delete [] displayModeList; displayModeList = 0; //释放适配器输出. adapterOutput->Release(); adapterOutput = 0; //释放适配器 adapter->Release(); adapter = 0; // 释放接口工厂. factory->Release(); factory = 0; // 得到交换链中的后缓冲指针. result = m_swapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&backBufferPtr); if(FAILED(result)) { HR(result); return false; } // 用后缓冲创建渲染目标视图. result = m_device->CreateRenderTargetView(backBufferPtr, NULL, &m_renderTargetView); if(FAILED(result)) { HR(result); return false; } //释放后缓冲.(引用计数减1) backBufferPtr->Release(); backBufferPtr = 0; // 初始化深度缓冲描述. ZeroMemory(&depthBufferDesc, sizeof(depthBufferDesc)); //设置深度缓冲描述 depthBufferDesc.Width = screenWidth; depthBufferDesc.Height = screenHeight; depthBufferDesc.MipLevels = 1;//对于深度缓冲为1 depthBufferDesc.ArraySize = 1;//对于深度缓冲为1，对于纹理，这2个参数有更多用途 depthBufferDesc.Format = DXGI_FORMAT_D24_UNORM_S8_UINT; depthBufferDesc.SampleDesc.Count = 1; depthBufferDesc.SampleDesc.Quality = 0; depth