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[fix] fix dpi scaling

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This commit is contained in:
dijunkun
2025-09-02 15:48:05 +08:00
parent 22084072b0
commit 6e7e2697b5
2 changed files with 30 additions and 0 deletions
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22
src/single_window/render.cpp
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@@ -729,6 +729,15 @@ int Render::SetupMainWindow() {
SetupFontAndStyle();
SDL_GetWindowSizeInPixels(main_window_, &main_window_width_real_,
&main_window_height_real_);
main_window_dpi_scaling_w_ = main_window_width_real_ / main_window_width_;
main_window_dpi_scaling_h_ = main_window_width_real_ / main_window_width_;
SDL_SetRenderScale(main_renderer_, main_window_dpi_scaling_w_,
main_window_dpi_scaling_h_);
LOG_INFO("Use dpi scaling [{}x{}] for main window",
main_window_dpi_scaling_w_, main_window_dpi_scaling_h_);
ImGui_ImplSDL3_InitForSDLRenderer(main_window_, main_renderer_);
ImGui_ImplSDLRenderer3_Init(main_renderer_);
@@ -758,6 +767,19 @@ int Render::SetupStreamWindow() {
SetupFontAndStyle();
SDL_GetWindowSizeInPixels(stream_window_, &stream_window_width_real_,
&stream_window_height_real_);
stream_window_dpi_scaling_w_ =
stream_window_width_real_ / stream_window_width_;
stream_window_dpi_scaling_h_ =
stream_window_width_real_ / stream_window_width_;
SDL_SetRenderScale(stream_renderer_, stream_window_dpi_scaling_w_,
stream_window_dpi_scaling_h_);
LOG_INFO("Use dpi scaling [{}x{}] for stream window",
stream_window_dpi_scaling_w_, stream_window_dpi_scaling_h_);
ImGui_ImplSDL3_InitForSDLRenderer(stream_window_, stream_renderer_);
ImGui_ImplSDLRenderer3_Init(stream_renderer_);