1 /**************************************************************************
3 * Copyright 2012 Jose Fonseca
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 **************************************************************************/
41 static IDXGISwapChain* g_pSwapChain = NULL;
42 static ID3D11Device * g_pDevice = NULL;
43 static ID3D11DeviceContext * g_pDeviceContext = NULL;
46 int main(int argc, char *argv[]){
49 HINSTANCE hInstance = GetModuleHandle(NULL);
67 const int WindowWidth = 250;
68 const int WindowHeight = 250;
71 DWORD dwStyle = WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_OVERLAPPEDWINDOW;
73 RECT rect = {0, 0, WindowWidth, WindowHeight};
74 AdjustWindowRect(&rect, dwStyle, FALSE);
76 HWND hWnd = CreateWindow(wc.lpszClassName,
77 "Simple example using DirectX10",
79 CW_USEDEFAULT, CW_USEDEFAULT,
80 rect.right - rect.left,
81 rect.bottom - rect.top,
90 ShowWindow(hWnd, SW_SHOW);
92 DXGI_SWAP_CHAIN_DESC SwapChainDesc;
93 ZeroMemory(&SwapChainDesc, sizeof SwapChainDesc);
94 SwapChainDesc.BufferDesc.Width = WindowWidth;
95 SwapChainDesc.BufferDesc.Height = WindowHeight;
96 SwapChainDesc.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;;
97 SwapChainDesc.BufferDesc.RefreshRate.Numerator = 60;
98 SwapChainDesc.BufferDesc.RefreshRate.Denominator = 1;
99 SwapChainDesc.SampleDesc.Quality = 0;
100 SwapChainDesc.SampleDesc.Count = 1;
101 SwapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
102 SwapChainDesc.BufferCount = 2;
103 SwapChainDesc.OutputWindow = hWnd;
104 SwapChainDesc.Windowed = true;
106 hr = D3D11CreateDeviceAndSwapChain(NULL, /* pAdapter */
107 D3D_DRIVER_TYPE_HARDWARE,
109 D3D11_CREATE_DEVICE_DEBUG,
116 NULL, /* pFeatureLevel */
117 &g_pDeviceContext); /* ppImmediateContext */
122 ID3D11RenderTargetView *pRenderTargetView = NULL;
123 ID3D11Texture2D* pBackBuffer;
124 hr = g_pSwapChain->GetBuffer(0, IID_ID3D11Texture2D, (void **)&pBackBuffer);
128 hr = g_pDevice->CreateRenderTargetView(pBackBuffer, NULL, &pRenderTargetView);
132 pBackBuffer->Release();
134 g_pDeviceContext->OMSetRenderTargets(1, &pRenderTargetView, NULL);
136 const float clearColor[4] = { 0.3f, 0.1f, 0.3f, 1.0f };
137 g_pDeviceContext->ClearRenderTargetView(pRenderTargetView, clearColor);
139 ID3D11VertexShader * pVertexShader;
140 hr = g_pDevice->CreateVertexShader(g_VS, sizeof g_VS, NULL, &pVertexShader);
150 static const D3D11_INPUT_ELEMENT_DESC InputElementDescs[] = {
151 { "POSITION", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, offsetof(Vertex, position), D3D11_INPUT_PER_VERTEX_DATA, 0 },
152 { "COLOR", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, offsetof(Vertex, color), D3D11_INPUT_PER_VERTEX_DATA, 0 }
155 ID3D11InputLayout *pVertexLayout = NULL;
156 hr = g_pDevice->CreateInputLayout(InputElementDescs,
165 g_pDeviceContext->IASetInputLayout(pVertexLayout);
167 ID3D11PixelShader * pPixelShader;
168 hr = g_pDevice->CreatePixelShader(g_PS, sizeof g_PS, NULL, &pPixelShader);
173 g_pDeviceContext->VSSetShader(pVertexShader, NULL, 0);
174 g_pDeviceContext->PSSetShader(pPixelShader, NULL, 0);
176 static const Vertex vertices[] = {
177 { { -0.9f, -0.9f, 0.5f, 1.0f}, { 0.8f, 0.0f, 0.0f, 0.1f } },
178 { { 0.9f, -0.9f, 0.5f, 1.0f}, { 0.0f, 0.9f, 0.0f, 0.1f } },
179 { { 0.0f, 0.9f, 0.5f, 1.0f}, { 0.0f, 0.0f, 0.7f, 0.1f } },
182 D3D11_BUFFER_DESC BufferDesc;
183 ZeroMemory(&BufferDesc, sizeof BufferDesc);
184 BufferDesc.Usage = D3D11_USAGE_DYNAMIC;
185 BufferDesc.ByteWidth = sizeof vertices;
186 BufferDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
187 BufferDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
188 BufferDesc.MiscFlags = 0;
190 D3D11_SUBRESOURCE_DATA BufferData;
191 BufferData.pSysMem = vertices;
192 BufferData.SysMemPitch = 0;
193 BufferData.SysMemSlicePitch = 0;
195 ID3D11Buffer *pVertexBuffer;
196 hr = g_pDevice->CreateBuffer(&BufferDesc, &BufferData, &pVertexBuffer);
201 UINT Stride = sizeof(Vertex);
203 g_pDeviceContext->IASetVertexBuffers(0, 1, &pVertexBuffer, &Stride, &Offset);
205 D3D11_VIEWPORT ViewPort;
206 ViewPort.TopLeftX = 0;
207 ViewPort.TopLeftY = 0;
208 ViewPort.Width = WindowWidth;
209 ViewPort.Height = WindowHeight;
210 ViewPort.MinDepth = 0.0f;
211 ViewPort.MaxDepth = 1.0f;
212 g_pDeviceContext->RSSetViewports(1, &ViewPort);
214 D3D11_RASTERIZER_DESC RasterizerDesc;
215 ZeroMemory(&RasterizerDesc, sizeof RasterizerDesc);
216 RasterizerDesc.CullMode = D3D11_CULL_NONE;
217 RasterizerDesc.FillMode = D3D11_FILL_SOLID;
218 RasterizerDesc.FrontCounterClockwise = true;
219 ID3D11RasterizerState* pRasterizerState = NULL;
220 g_pDevice->CreateRasterizerState(&RasterizerDesc, &pRasterizerState);
221 g_pDeviceContext->RSSetState(pRasterizerState);
223 g_pDeviceContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
224 g_pDeviceContext->Draw(3, 0);
226 g_pSwapChain->Present(0, 0);
229 ID3D11Buffer *pNullBuffer = NULL;
232 g_pDeviceContext->IASetVertexBuffers(0, 1, &pNullBuffer, &NullStride, &NullOffset);
233 pVertexBuffer->Release();
235 g_pDeviceContext->OMSetRenderTargets(0, NULL, NULL);
236 pRenderTargetView->Release();
238 g_pDeviceContext->IASetInputLayout(NULL);
239 pVertexLayout->Release();
241 g_pDeviceContext->VSSetShader(NULL, NULL, 0);
242 pVertexShader->Release();
244 g_pDeviceContext->PSSetShader(NULL, NULL, 0);
245 pPixelShader->Release();
247 g_pDeviceContext->RSSetState(NULL);
248 pRasterizerState->Release();
250 g_pSwapChain->Release();
253 g_pDevice->Release();