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Examples: DirectX9: Minor changes to match the other DirectX examples more closely. (#2394)

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This commit is contained in:
omar 2019-03-06 18:00:04 +01:00
parent c779fbb651
commit 510342f024
4 changed files with 51 additions and 36 deletions
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1
docs/CHANGELOG.txt
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@ -84,6 +84,7 @@ Other Changes:
- Examples: OpenGL: Fix for OSX not supporting OpenGL 4.5, we don't try to read GL_CLIP_ORIGIN
even if the OpenGL headers/loader happens to define the value. (#2366, #2186)
- Examples: Allegro: Added support for touch events (emulating mouse). (#2219) [@dos1]
- Examples: DirectX9: Minor changes to match the other DirectX examples more closely. (#2394)
-----------------------------------------------------------------------

2
examples/example_win32_directx10/main.cpp
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@ -18,7 +18,7 @@ static ID3D10RenderTargetView* g_mainRenderTargetView = NULL;
void CreateRenderTarget()
{
ID3D10Texture2D* pBackBuffer;
g_pSwapChain->GetBuffer(0, __uuidof(ID3D10Texture2D), (LPVOID*)&pBackBuffer);
g_pSwapChain->GetBuffer(0, IID_PPV_ARGS(&pBackBuffer));
g_pd3dDevice->CreateRenderTargetView(pBackBuffer, NULL, &g_mainRenderTargetView);
pBackBuffer->Release();
}

2
examples/example_win32_directx11/main.cpp
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@ -18,7 +18,7 @@ static ID3D11RenderTargetView* g_mainRenderTargetView = NULL;
void CreateRenderTarget()
{
ID3D11Texture2D* pBackBuffer;
g_pSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&pBackBuffer);
g_pSwapChain->GetBuffer(0, IID_PPV_ARGS(&pBackBuffer));
g_pd3dDevice->CreateRenderTargetView(pBackBuffer, NULL, &g_mainRenderTargetView);
pBackBuffer->Release();
}

82
examples/example_win32_directx9/main.cpp
View File

@ -10,8 +10,44 @@
#include <tchar.h>
// Data
static LPDIRECT3D9 g_pD3D = NULL;
static LPDIRECT3DDEVICE9 g_pd3dDevice = NULL;
static D3DPRESENT_PARAMETERS g_d3dpp;
static D3DPRESENT_PARAMETERS g_d3dpp = {};
HRESULT CreateDeviceD3D(HWND hWnd)
{
if ((g_pD3D = Direct3DCreate9(D3D_SDK_VERSION)) == NULL)
return E_FAIL;
// Create the D3DDevice
ZeroMemory(&g_d3dpp, sizeof(g_d3dpp));
g_d3dpp.Windowed = TRUE;
g_d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
g_d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;
g_d3dpp.EnableAutoDepthStencil = TRUE;
g_d3dpp.AutoDepthStencilFormat = D3DFMT_D16;
g_d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_ONE; // Present with vsync
//g_d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE; // Present without vsync, maximum unthrottled framerate
if (g_pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_HARDWARE_VERTEXPROCESSING, &g_d3dpp, &g_pd3dDevice) < 0)
return E_FAIL;
return S_OK;
}
void CleanupDeviceD3D()
{
if (g_pd3dDevice) { g_pd3dDevice->Release(); g_pd3dDevice = NULL; }
if (g_pD3D) { g_pD3D->Release(); g_pD3D = NULL; }
}
void ResetDevice()
{
ImGui_ImplDX9_InvalidateDeviceObjects();
HRESULT hr = g_pd3dDevice->Reset(&g_d3dpp);
if (hr == D3DERR_INVALIDCALL)
IM_ASSERT(0);
ImGui_ImplDX9_CreateDeviceObjects();
}
extern LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
@ -24,13 +60,9 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
case WM_SIZE:
if (g_pd3dDevice != NULL && wParam != SIZE_MINIMIZED)
{
ImGui_ImplDX9_InvalidateDeviceObjects();
g_d3dpp.BackBufferWidth = LOWORD(lParam);
g_d3dpp.BackBufferWidth = LOWORD(lParam);
g_d3dpp.BackBufferHeight = HIWORD(lParam);
HRESULT hr = g_pd3dDevice->Reset(&g_d3dpp);
if (hr == D3DERR_INVALIDCALL)
IM_ASSERT(0);
ImGui_ImplDX9_CreateDeviceObjects();
ResetDevice();
}
return 0;
case WM_SYSCOMMAND:
@ -52,28 +84,16 @@ int main(int, char**)
HWND hwnd = CreateWindow(wc.lpszClassName, _T("Dear ImGui DirectX9 Example"), WS_OVERLAPPEDWINDOW, 100, 100, 1280, 800, NULL, NULL, wc.hInstance, NULL);
// Initialize Direct3D
LPDIRECT3D9 pD3D;
if ((pD3D = Direct3DCreate9(D3D_SDK_VERSION)) == NULL)
if (CreateDeviceD3D(hwnd) < 0)
{
CleanupDeviceD3D();
UnregisterClass(wc.lpszClassName, wc.hInstance);
return 0;
return 1;
}
ZeroMemory(&g_d3dpp, sizeof(g_d3dpp));
g_d3dpp.Windowed = TRUE;
g_d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
g_d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;
g_d3dpp.EnableAutoDepthStencil = TRUE;
g_d3dpp.AutoDepthStencilFormat = D3DFMT_D16;
g_d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_ONE; // Present with vsync
//g_d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE; // Present without vsync, maximum unthrottled framerate
// Create the D3DDevice
if (pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hwnd, D3DCREATE_HARDWARE_VERTEXPROCESSING, &g_d3dpp, &g_pd3dDevice) < 0)
{
pD3D->Release();
UnregisterClass(wc.lpszClassName, wc.hInstance);
return 0;
}
// Show the window
ShowWindow(hwnd, SW_SHOWDEFAULT);
UpdateWindow(hwnd);
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
@ -104,6 +124,7 @@ int main(int, char**)
//ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, NULL, io.Fonts->GetGlyphRangesJapanese());
//IM_ASSERT(font != NULL);
// Our state
bool show_demo_window = true;
bool show_another_window = false;
ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
@ -111,8 +132,6 @@ int main(int, char**)
// Main loop
MSG msg;
ZeroMemory(&msg, sizeof(msg));
ShowWindow(hwnd, SW_SHOWDEFAULT);
UpdateWindow(hwnd);
while (msg.message != WM_QUIT)
{
// Poll and handle messages (inputs, window resize, etc.)
@ -186,19 +205,14 @@ int main(int, char**)
// Handle loss of D3D9 device
if (result == D3DERR_DEVICELOST && g_pd3dDevice->TestCooperativeLevel() == D3DERR_DEVICENOTRESET)
{
ImGui_ImplDX9_InvalidateDeviceObjects();
g_pd3dDevice->Reset(&g_d3dpp);
ImGui_ImplDX9_CreateDeviceObjects();
}
ResetDevice();
}
ImGui_ImplDX9_Shutdown();
ImGui_ImplWin32_Shutdown();
ImGui::DestroyContext();
if (g_pd3dDevice) g_pd3dDevice->Release();
if (pD3D) pD3D->Release();
CleanupDeviceD3D();
DestroyWindow(hwnd);
UnregisterClass(wc.lpszClassName, wc.hInstance);