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DirectX11 example: closing all handler/resources in Cleanup.

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This commit is contained in:
ocornut 2014-11-30 16:53:33 +00:00
parent 0f29cd7a14
commit de44af5227
1 changed files with 36 additions and 26 deletions
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62
examples/directx11_example/main.cpp
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@ -157,15 +157,10 @@ static void ImImpl_RenderDrawLists(ImDrawList** const cmd_lists, int cmd_lists_c
HRESULT InitD3D(HWND hWnd) HRESULT InitD3D(HWND hWnd)
{ {
IDXGIFactory1* pFactory = NULL; // Setup swap chain
CreateDXGIFactory1(__uuidof(IDXGIFactory1), (void**)&pFactory);
DXGI_SWAP_CHAIN_DESC sd; DXGI_SWAP_CHAIN_DESC sd;
// Setup the swap chain
{ {
// Setup swap chain
ZeroMemory(&sd, sizeof(sd)); ZeroMemory(&sd, sizeof(sd));
sd.BufferCount = 2; sd.BufferCount = 2;
sd.BufferDesc.Width = (UINT)ImGui::GetIO().DisplaySize.x; sd.BufferDesc.Width = (UINT)ImGui::GetIO().DisplaySize.x;
sd.BufferDesc.Height = (UINT)ImGui::GetIO().DisplaySize.y; sd.BufferDesc.Height = (UINT)ImGui::GetIO().DisplaySize.y;
@ -208,41 +203,37 @@ HRESULT InitD3D(HWND hWnd)
else else
RSDesc.MultisampleEnable = FALSE; RSDesc.MultisampleEnable = FALSE;
ID3D11RasterizerState* g_pRState = NULL; ID3D11RasterizerState* pRState = NULL;
g_pd3dDevice->CreateRasterizerState(&RSDesc, &g_pRState); g_pd3dDevice->CreateRasterizerState(&RSDesc, &pRState);
g_pd3dDeviceImmediateContext->RSSetState(g_pRState); g_pd3dDeviceImmediateContext->RSSetState(pRState);
pRState->Release();
} }
// Create the render target // Create the render target
{ {
ID3D11Texture2D* g_pBackBuffer; ID3D11Texture2D* pBackBuffer;
D3D11_RENDER_TARGET_VIEW_DESC render_target_view_desc; D3D11_RENDER_TARGET_VIEW_DESC render_target_view_desc;
ZeroMemory(&render_target_view_desc, sizeof(render_target_view_desc)); ZeroMemory(&render_target_view_desc, sizeof(render_target_view_desc));
render_target_view_desc.Format = sd.BufferDesc.Format; render_target_view_desc.Format = sd.BufferDesc.Format;
render_target_view_desc.ViewDimension = D3D11_RTV_DIMENSION_TEXTURE2D; render_target_view_desc.ViewDimension = D3D11_RTV_DIMENSION_TEXTURE2D;
g_pSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&pBackBuffer);
g_pSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&g_pBackBuffer); g_pd3dDevice->CreateRenderTargetView(pBackBuffer, &render_target_view_desc, &g_mainRenderTargetView);
g_pd3dDevice->CreateRenderTargetView(g_pBackBuffer, &render_target_view_desc, &g_mainRenderTargetView);
g_pd3dDeviceImmediateContext->OMSetRenderTargets(1, &g_mainRenderTargetView, NULL); g_pd3dDeviceImmediateContext->OMSetRenderTargets(1, &g_mainRenderTargetView, NULL);
pBackBuffer->Release();
} }
// Create the vertex shader // Create the vertex shader
{ {
ID3D10Blob * pErrorBlob; ID3D10Blob * pErrorBlob = NULL;
D3DCompile(vertexShader, strlen(vertexShader), NULL, NULL, NULL, "main", "vs_5_0", 0, 0, &g_pVertexShaderBlob, &pErrorBlob); D3DCompile(vertexShader, strlen(vertexShader), NULL, NULL, NULL, "main", "vs_5_0", 0, 0, &g_pVertexShaderBlob, &pErrorBlob);
if (g_pVertexShaderBlob == NULL) if (g_pVertexShaderBlob == NULL)
{ {
const char* pError = (const char*)pErrorBlob->GetBufferPointer(); //const char* pError = (const char*)pErrorBlob->GetBufferPointer();
pErrorBlob->Release(); pErrorBlob->Release();
return E_FAIL; return E_FAIL;
} }
if (g_pd3dDevice->CreateVertexShader((DWORD*)g_pVertexShaderBlob->GetBufferPointer(), g_pVertexShaderBlob->GetBufferSize(), NULL, &g_pVertexShader) != S_OK) if (g_pd3dDevice->CreateVertexShader((DWORD*)g_pVertexShaderBlob->GetBufferPointer(), g_pVertexShaderBlob->GetBufferSize(), NULL, &g_pVertexShader) != S_OK)
return E_FAIL; return E_FAIL;
if (pErrorBlob) if (pErrorBlob)
pErrorBlob->Release(); pErrorBlob->Release();
@ -272,17 +263,14 @@ HRESULT InitD3D(HWND hWnd)
{ {
ID3D10Blob * pErrorBlob; ID3D10Blob * pErrorBlob;
D3DCompile(pixelShader, strlen(pixelShader), NULL, NULL, NULL, "main", "ps_5_0", 0, 0, &g_pPixelShaderBlob, &pErrorBlob); D3DCompile(pixelShader, strlen(pixelShader), NULL, NULL, NULL, "main", "ps_5_0", 0, 0, &g_pPixelShaderBlob, &pErrorBlob);
if (g_pPixelShaderBlob == NULL) if (g_pPixelShaderBlob == NULL)
{ {
const char* pError = (const char*)pErrorBlob->GetBufferPointer(); //const char* pError = (const char*)pErrorBlob->GetBufferPointer();
pErrorBlob->Release(); pErrorBlob->Release();
return E_FAIL; return E_FAIL;
} }
if (g_pd3dDevice->CreatePixelShader((DWORD*)g_pPixelShaderBlob->GetBufferPointer(), g_pPixelShaderBlob->GetBufferSize(), NULL, &g_pPixelShader) != S_OK) if (g_pd3dDevice->CreatePixelShader((DWORD*)g_pPixelShaderBlob->GetBufferPointer(), g_pPixelShaderBlob->GetBufferSize(), NULL, &g_pPixelShader) != S_OK)
return E_FAIL; return E_FAIL;
if (pErrorBlob) if (pErrorBlob)
pErrorBlob->Release(); pErrorBlob->Release();
} }
@ -306,6 +294,27 @@ HRESULT InitD3D(HWND hWnd)
return S_OK; return S_OK;
} }
void Cleanup()
{
if (g_pd3dDeviceImmediateContext) g_pd3dDeviceImmediateContext->ClearState();
if (g_pFontSampler) g_pFontSampler->Release();
if (g_pFontTextureView) g_pFontTextureView->Release();
if (g_pVB) g_pVB->Release();
if (g_blendState) g_blendState->Release();
if (g_pPixelShader) g_pPixelShader->Release();
if (g_pPixelShaderBlob) g_pPixelShaderBlob->Release();
if (g_pVertexConstantBuffer) g_pVertexConstantBuffer->Release();
if (g_pInputLayout) g_pInputLayout->Release();
if (g_pVertexShader) g_pVertexShader->Release();
if (g_pVertexShaderBlob) g_pVertexShaderBlob->Release();
if (g_mainRenderTargetView) g_mainRenderTargetView->Release();
if (g_pSwapChain) g_pSwapChain->Release();
if (g_pd3dDeviceImmediateContext) g_pd3dDeviceImmediateContext->Release();
if (g_pd3dDevice) g_pd3dDevice->Release();
}
LRESULT WINAPI MsgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) LRESULT WINAPI MsgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{ {
ImGuiIO& io = ImGui::GetIO(); ImGuiIO& io = ImGui::GetIO();
@ -337,6 +346,7 @@ LRESULT WINAPI MsgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
io.AddInputCharacter((unsigned short)wParam); io.AddInputCharacter((unsigned short)wParam);
return true; return true;
case WM_DESTROY: case WM_DESTROY:
Cleanup();
PostQuitMessage(0); PostQuitMessage(0);
return 0; return 0;
} }
@ -369,7 +379,6 @@ void InitImGui()
io.KeyMap[ImGuiKey_X] = 'X'; io.KeyMap[ImGuiKey_X] = 'X';
io.KeyMap[ImGuiKey_Y] = 'Y'; io.KeyMap[ImGuiKey_Y] = 'Y';
io.KeyMap[ImGuiKey_Z] = 'Z'; io.KeyMap[ImGuiKey_Z] = 'Z';
io.RenderDrawListsFn = ImImpl_RenderDrawLists; io.RenderDrawListsFn = ImImpl_RenderDrawLists;
// Create the vertex buffer // Create the vertex buffer
@ -427,6 +436,7 @@ void InitImGui()
srvDesc.Texture2D.MipLevels = desc.MipLevels; srvDesc.Texture2D.MipLevels = desc.MipLevels;
srvDesc.Texture2D.MostDetailedMip = 0; srvDesc.Texture2D.MostDetailedMip = 0;
g_pd3dDevice->CreateShaderResourceView(pTexture, &srvDesc, &g_pFontTextureView); g_pd3dDevice->CreateShaderResourceView(pTexture, &srvDesc, &g_pFontTextureView);
pTexture->Release();
} }
// create texture sampler // create texture sampler
@ -562,8 +572,8 @@ int WINAPI wWinMain(HINSTANCE hInst, HINSTANCE, LPWSTR, int)
} }
ImGui::Shutdown(); ImGui::Shutdown();
UnregisterClass("ImGui Example", wc.hInstance); UnregisterClass("ImGui Example", wc.hInstance);
return 0; return 0;
} }