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Examples: SDL3: specify SDL_WINDOW_HIGH_PIXEL_DENSITY and make centering consistent + call SDL_RenderScale().

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ocornut 2025-05-05 20:04:12 +02:00
parent afd3a36f69
commit 46235e91f6
4 changed files with 9 additions and 6 deletions
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4
examples/example_sdl3_opengl3/main.cpp
View file

@ -68,14 +68,13 @@ int main(int, char**)
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24); SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8); SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
Uint32 window_flags = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN; SDL_WindowFlags window_flags = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN | SDL_WINDOW_HIGH_PIXEL_DENSITY;
SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL3+OpenGL3 example", 1280, 720, window_flags); SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL3+OpenGL3 example", 1280, 720, window_flags);
if (window == nullptr) if (window == nullptr)
{ {
printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError()); printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
return -1; return -1;
} }
SDL_SetWindowPosition(window, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);
SDL_GLContext gl_context = SDL_GL_CreateContext(window); SDL_GLContext gl_context = SDL_GL_CreateContext(window);
if (gl_context == nullptr) if (gl_context == nullptr)
{ {
@ -85,6 +84,7 @@ int main(int, char**)
SDL_GL_MakeCurrent(window, gl_context); SDL_GL_MakeCurrent(window, gl_context);
SDL_GL_SetSwapInterval(1); // Enable vsync SDL_GL_SetSwapInterval(1); // Enable vsync
SDL_SetWindowPosition(window, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);
SDL_ShowWindow(window); SDL_ShowWindow(window);
// Setup Dear ImGui context // Setup Dear ImGui context

5
examples/example_sdl3_sdlgpu3/main.cpp
View file

@ -34,12 +34,15 @@ int main(int, char**)
} }
// Create SDL window graphics context // Create SDL window graphics context
SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL3+SDL_GPU example", 1280, 720, SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIGH_PIXEL_DENSITY); SDL_WindowFlags window_flags = SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN | SDL_WINDOW_HIGH_PIXEL_DENSITY;
SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL3+SDL_GPU example", 1280, 720, window_flags);
if (window == nullptr) if (window == nullptr)
{ {
printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError()); printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
return -1; return -1;
} }
SDL_SetWindowPosition(window, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);
SDL_ShowWindow(window);
// Create GPU Device // Create GPU Device
SDL_GPUDevice* gpu_device = SDL_CreateGPUDevice(SDL_GPU_SHADERFORMAT_SPIRV | SDL_GPU_SHADERFORMAT_DXIL | SDL_GPU_SHADERFORMAT_METALLIB,true,nullptr); SDL_GPUDevice* gpu_device = SDL_CreateGPUDevice(SDL_GPU_SHADERFORMAT_SPIRV | SDL_GPU_SHADERFORMAT_DXIL | SDL_GPU_SHADERFORMAT_METALLIB,true,nullptr);

4
examples/example_sdl3_sdlrenderer3/main.cpp
View file

@ -32,7 +32,7 @@ int main(int, char**)
} }
// Create window with SDL_Renderer graphics context // Create window with SDL_Renderer graphics context
Uint32 window_flags = SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN; SDL_WindowFlags window_flags = SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN | SDL_WINDOW_HIGH_PIXEL_DENSITY;
SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL3+SDL_Renderer example", 1280, 720, window_flags); SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL3+SDL_Renderer example", 1280, 720, window_flags);
if (window == nullptr) if (window == nullptr)
{ {
@ -164,7 +164,7 @@ int main(int, char**)
// Rendering // Rendering
ImGui::Render(); ImGui::Render();
//SDL_RenderSetScale(renderer, io.DisplayFramebufferScale.x, io.DisplayFramebufferScale.y); SDL_SetRenderScale(renderer, io.DisplayFramebufferScale.x, io.DisplayFramebufferScale.y);
SDL_SetRenderDrawColorFloat(renderer, clear_color.x, clear_color.y, clear_color.z, clear_color.w); SDL_SetRenderDrawColorFloat(renderer, clear_color.x, clear_color.y, clear_color.z, clear_color.w);
SDL_RenderClear(renderer); SDL_RenderClear(renderer);
ImGui_ImplSDLRenderer3_RenderDrawData(ImGui::GetDrawData(), renderer); ImGui_ImplSDLRenderer3_RenderDrawData(ImGui::GetDrawData(), renderer);

2
examples/example_sdl3_vulkan/main.cpp
View file

@ -353,7 +353,7 @@ int main(int, char**)
} }
// Create window with Vulkan graphics context // Create window with Vulkan graphics context
SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_VULKAN | SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIGH_PIXEL_DENSITY | SDL_WINDOW_HIDDEN); SDL_WindowFlags window_flags = SDL_WINDOW_VULKAN | SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN | SDL_WINDOW_HIGH_PIXEL_DENSITY;
SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL3+Vulkan example", 1280, 720, window_flags); SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL3+Vulkan example", 1280, 720, window_flags);
if (window == nullptr) if (window == nullptr)
{ {