mirrors/imgui
1
0
Fork 0
mirror of https://github.com/ocornut/imgui.git synced 2025-10-26 12:27:30 +00:00
Code Issues Packages Projects Releases Wiki Activity

Backends: SDL2, SDL3, GLFW: Backport small part of c90ea13 from docking.

Browse Source
This commit is contained in:
ocornut
2025-06-11 16:17:54 +02:00
parent 8269924c33
commit b98e92839c
3 changed files with 54 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
backends/imgui_impl_sdl3.cpp
View File

@@ -771,22 +771,28 @@ static void ImGui_ImplSDL3_UpdateGamepads()
ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickDown, SDL_GAMEPAD_AXIS_RIGHTY, +thumb_dead_zone, +32767);
}
static void ImGui_ImplSDL3_GetWindowSizeAndFramebufferScale(SDL_Window* window, ImVec2* out_size, ImVec2* out_framebuffer_scale)
{
int w, h;
int display_w, display_h;
SDL_GetWindowSize(window, &w, &h);
if (SDL_GetWindowFlags(window) & SDL_WINDOW_MINIMIZED)
w = h = 0;
SDL_GetWindowSizeInPixels(window, &display_w, &display_h);
if (out_size != nullptr)
*out_size = ImVec2((float)w, (float)h);
if (out_framebuffer_scale != nullptr)
*out_framebuffer_scale = (w > 0 && h > 0) ? ImVec2((float)display_w / w, (float)display_h / h) : ImVec2(1.0f, 1.0f);
}
void ImGui_ImplSDL3_NewFrame()
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDL3_Init()?");
ImGuiIO& io = ImGui::GetIO();
// Setup display size (every frame to accommodate for window resizing)
int w, h;
int display_w, display_h;
SDL_GetWindowSize(bd->Window, &w, &h);
if (SDL_GetWindowFlags(bd->Window) & SDL_WINDOW_MINIMIZED)
w = h = 0;
SDL_GetWindowSizeInPixels(bd->Window, &display_w, &display_h);
io.DisplaySize = ImVec2((float)w, (float)h);
if (w > 0 && h > 0)
io.DisplayFramebufferScale = ImVec2((float)display_w / w, (float)display_h / h);
// Setup main viewport size (every frame to accommodate for window resizing)
ImGui_ImplSDL3_GetWindowSizeAndFramebufferScale(bd->Window, &io.DisplaySize, &io.DisplayFramebufferScale);
// Setup time step (we could also use SDL_GetTicksNS() available since SDL3)
// (Accept SDL_GetPerformanceCounter() not returning a monotonically increasing value. Happens in VMs and Emscripten, see #6189, #6114, #3644)