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Handle DPI scaling in SDL_GetWindowSurface

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Fixes DPI awareness of testdrawchessboard (previously, the surface was
being created in points instead of pixels, resulting in the demo app
only drawing in a corner of the screen on High-DPI displays)

*_CreateWindowFramebuffer()/*_UpdateWindowFramebuffer(): are updated
to use SDL_GetWindowSizeInPixels instead of SDL_GetWindowSize() or
window->w/window->h.

Most of the _CreateWindowFramebuffer backends are untested except
for Windows.

Fixes #7047
This commit is contained in:
Eric Wasylishen 2023-01-11 19:45:01 -07:00 • committed by Sam Lantinga
parent 6d11515873
commit 67c91353e0
11 changed files with 57 additions and 35 deletions
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2
src/video/emscripten/SDL_emscriptenframebuffer.c
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@ -39,7 +39,7 @@ int Emscripten_CreateWindowFramebuffer(_THIS, SDL_Window *window, Uint32 *format
SDL_DestroySurface(surface);
/* Create a new one */
SDL_GetWindowSize(window, &w, &h);
SDL_GetWindowSizeInPixels(window, &w, &h);
surface = SDL_CreateSurface(w, h, surface_format);
if (surface == NULL) {