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Backends: SDL_GPU: Added multi-viewport support. Amends + update example. (#8573, #8163, #7998, #7988)

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ocornut
2025-04-17 15:39:28 +02:00
parent baffc4e8b8
commit 87f12e56fe
3 changed files with 30 additions and 13 deletions
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17
examples/example_sdl3_sdlgpu3/main.cpp
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@@ -63,11 +63,21 @@ int main(int, char**)
ImGuiIO& io = ImGui::GetIO(); (void)io;
io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls
io.ConfigFlags |= ImGuiConfigFlags_DockingEnable; // Enable Docking
io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable; // Enable Multi-Viewport / Platform Windows
// Setup Dear ImGui style
ImGui::StyleColorsDark();
//ImGui::StyleColorsLight();
// When viewports are enabled we tweak WindowRounding/WindowBg so platform windows can look identical to regular ones.
ImGuiStyle& style = ImGui::GetStyle();
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
{
style.WindowRounding = 0.0f;
style.Colors[ImGuiCol_WindowBg].w = 1.0f;
}
// Setup Platform/Renderer backends
ImGui_ImplSDL3_InitForSDLGPU(window);
ImGui_ImplSDLGPU3_InitInfo init_info = {};
@@ -198,6 +208,13 @@ int main(int, char**)
SDL_EndGPURenderPass(render_pass);
}
// Update and Render additional Platform Windows
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
{
ImGui::UpdatePlatformWindows();
ImGui::RenderPlatformWindowsDefault();
}
// Submit the command buffer
SDL_SubmitGPUCommandBuffer(command_buffer);
}