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Examples: added SDL3+DirectX11 example. Minor amends + fix both SDL2/SDL3+DirectX11 to allow WARP driver. (#8956, #8957)

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ocornut
2025-09-22 21:37:41 +02:00
parent a00e517a81
commit d701ffb478
10 changed files with 27 additions and 13 deletions
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5
docs/CHANGELOG.txt
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@@ -53,7 +53,10 @@ Other Changes:
ClearRendererHandlers() on shutdown, so as not to leave function pointers
which may be dangling when using backend in e.g. DLL. (#8945, #2769)
- Backends: OpenGL3: fixed GL loader to work on Haiku OS which does not support
`RTLD_NOLOAD`. (#8952) [@Xottab-DUTY]
`RTLD_NOLOAD`. (#8952) [@Xottab-DUTY, @threedeyes]
- Examples: SDL2+DirectX11: Try WARP software driver if hardware driver is
not available. (#5924, #5562)
- Examples: SDL3+DirectX11: Added SDL3+DirectX11 example. (#8956, #8957) [@tomaz82]
-----------------------------------------------------------------------

6
docs/EXAMPLES.md
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@@ -149,8 +149,12 @@ SDL2 (Win32, Mac, Linux, etc.) + Vulkan example. <BR>
This is quite long and tedious, because: Vulkan. <BR>
For this example, the main.cpp file exceptionally use helpers function from imgui_impl_vulkan.h/cpp.
[example_sdl3_directx11/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl3_directx11/) <BR>
SDL3 + DirectX11 examples, Windows only. <BR>
= main.cpp + imgui_impl_sdl3.cpp + imgui_impl_dx11.cpp <BR>
[example_sdl3_metal/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl3_metal/) <BR>
SDL3 + Metal example (Mac). <BR>
SDL3 + Metal example, Mac only. <BR>
= main.cpp + imgui_impl_sdl3.cpp + imgui_impl_metal.mm <BR>
[example_sdl3_opengl3/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl3_opengl3/) <BR>

5
examples/example_sdl2_directx11/main.cpp
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@@ -230,7 +230,10 @@ bool CreateDeviceD3D(HWND hWnd)
//createDeviceFlags |= D3D11_CREATE_DEVICE_DEBUG;
D3D_FEATURE_LEVEL featureLevel;
const D3D_FEATURE_LEVEL featureLevelArray[2] = { D3D_FEATURE_LEVEL_11_0, D3D_FEATURE_LEVEL_10_0, };
if (D3D11CreateDeviceAndSwapChain(nullptr, D3D_DRIVER_TYPE_HARDWARE, nullptr, createDeviceFlags, featureLevelArray, 2, D3D11_SDK_VERSION, &sd, &g_pSwapChain, &g_pd3dDevice, &featureLevel, &g_pd3dDeviceContext) != S_OK)
HRESULT res = D3D11CreateDeviceAndSwapChain(nullptr, D3D_DRIVER_TYPE_HARDWARE, nullptr, createDeviceFlags, featureLevelArray, 2, D3D11_SDK_VERSION, &sd, &g_pSwapChain, &g_pd3dDevice, &featureLevel, &g_pd3dDeviceContext);
if (res == DXGI_ERROR_UNSUPPORTED) // Try high-performance WARP software driver if hardware is not available.
res = D3D11CreateDeviceAndSwapChain(nullptr, D3D_DRIVER_TYPE_WARP, nullptr, createDeviceFlags, featureLevelArray, 2, D3D11_SDK_VERSION, &sd, &g_pSwapChain, &g_pd3dDevice, &featureLevel, &g_pd3dDeviceContext);
if (res != S_OK)
return false;
CreateRenderTarget();

12
examples/example_sdl3_directx11/main.cpp
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@@ -11,7 +11,7 @@
#include "imgui_impl_sdl3.h"
#include "imgui_impl_dx11.h"
#include <d3d11.h>
#include <stdio.h>
#include <stdio.h> // printf
#include <SDL3/SDL.h>
// Data
@@ -40,7 +40,7 @@ int main(int, char**)
// Setup window
float main_scale = SDL_GetDisplayContentScale(SDL_GetPrimaryDisplay());
SDL_WindowFlags window_flags = SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN | SDL_WINDOW_HIGH_PIXEL_DENSITY;
SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL3+DirectX11 example", (int)(1280 * main_scale), (int)(720 * main_scale), window_flags);
SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL3+DirectX11 example", (int)(1280 * main_scale), (int)(800 * main_scale), window_flags);
if (window == nullptr)
{
printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
@@ -54,7 +54,7 @@ int main(int, char**)
if (!CreateDeviceD3D(hwnd))
{
CleanupDeviceD3D();
return 1;
return -1;
}
SDL_SetWindowPosition(window, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);
@@ -189,6 +189,7 @@ int main(int, char**)
}
// Cleanup
// [If using SDL_MAIN_USE_CALLBACKS: all code below would likely be your SDL_AppQuit() function]
ImGui_ImplDX11_Shutdown();
ImGui_ImplSDL3_Shutdown();
ImGui::DestroyContext();
@@ -224,7 +225,10 @@ bool CreateDeviceD3D(HWND hWnd)
//createDeviceFlags |= D3D11_CREATE_DEVICE_DEBUG;
D3D_FEATURE_LEVEL featureLevel;
const D3D_FEATURE_LEVEL featureLevelArray[2] = { D3D_FEATURE_LEVEL_11_0, D3D_FEATURE_LEVEL_10_0, };
if (D3D11CreateDeviceAndSwapChain(nullptr, D3D_DRIVER_TYPE_HARDWARE, nullptr, createDeviceFlags, featureLevelArray, 2, D3D11_SDK_VERSION, &sd, &g_pSwapChain, &g_pd3dDevice, &featureLevel, &g_pd3dDeviceContext) != S_OK)
HRESULT res = D3D11CreateDeviceAndSwapChain(nullptr, D3D_DRIVER_TYPE_HARDWARE, nullptr, createDeviceFlags, featureLevelArray, 2, D3D11_SDK_VERSION, &sd, &g_pSwapChain, &g_pd3dDevice, &featureLevel, &g_pd3dDeviceContext);
if (res == DXGI_ERROR_UNSUPPORTED) // Try high-performance WARP software driver if hardware is not available.
res = D3D11CreateDeviceAndSwapChain(nullptr, D3D_DRIVER_TYPE_WARP, nullptr, createDeviceFlags, featureLevelArray, 2, D3D11_SDK_VERSION, &sd, &g_pSwapChain, &g_pd3dDevice, &featureLevel, &g_pd3dDeviceContext);
if (res != S_OK)
return false;
CreateRenderTarget();

2
examples/example_win32_directx10/main.cpp
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@@ -1,4 +1,4 @@
// Dear ImGui: standalone example application for DirectX 10
// Dear ImGui: standalone example application for Windows API + DirectX 10
// Learn about Dear ImGui:
// - FAQ https://dearimgui.com/faq

2
examples/example_win32_directx11/main.cpp
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@@ -1,4 +1,4 @@
// Dear ImGui: standalone example application for DirectX 11
// Dear ImGui: standalone example application for Windows API + DirectX 11
// Learn about Dear ImGui:
// - FAQ https://dearimgui.com/faq

2
examples/example_win32_directx12/main.cpp
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@@ -1,4 +1,4 @@
// Dear ImGui: standalone example application for DirectX 12
// Dear ImGui: standalone example application for Windows API + DirectX 12
// Learn about Dear ImGui:
// - FAQ https://dearimgui.com/faq

2
examples/example_win32_directx9/main.cpp
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@@ -1,4 +1,4 @@
// Dear ImGui: standalone example application for DirectX 9
// Dear ImGui: standalone example application for Windows API + DirectX 9
// Learn about Dear ImGui:
// - FAQ https://dearimgui.com/faq

2
examples/example_win32_opengl3/main.cpp
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@@ -1,4 +1,4 @@
// Dear ImGui: standalone example application for Win32 + OpenGL 3
// Dear ImGui: standalone example application for Windows API + OpenGL
// Learn about Dear ImGui:
// - FAQ https://dearimgui.com/faq

2
examples/example_win32_vulkan/main.cpp
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@@ -1,4 +1,4 @@
// Dear ImGui: standalone example application for Win32 + Vulkan
// Dear ImGui: standalone example application for Windows API + Vulkan
// Learn about Dear ImGui:
// - FAQ https://dearimgui.com/faq