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Fixed testshape on high DPI displays

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Since the shape is set based on the pixels in the image, we want the window to have the same number of pixels.
This commit is contained in:
Sam Lantinga 2023-03-02 10:15:14 -08:00
parent 59ca0c8b22
commit 3bba33932f
2 changed files with 11 additions and 5 deletions
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4
src/video/windows/SDL_windowsshape.c
View file

@ -80,9 +80,7 @@ int Win32_SetWindowShape(SDL_WindowShaper *shaper, SDL_Surface *shape, SDL_Windo
if ((shaper == NULL) ||
(shape == NULL) ||
((shape->format->Amask == 0) && (shape_mode->mode != ShapeModeColorKey)) ||
(shape->w != shaper->window->w) ||
(shape->h != shaper->window->h)) {
((shape->format->Amask == 0) && (shape_mode->mode != ShapeModeColorKey))) {
return SDL_INVALID_SHAPE_ARGUMENT;
}

12
test/testshape.c
View file

@ -42,6 +42,7 @@ int main(int argc, char **argv)
Uint8 num_pictures;
LoadedPicture *pictures;
int i, j;
const SDL_DisplayMode *mode;
SDL_PixelFormat *format = NULL;
SDL_Window *window;
SDL_Renderer *renderer;
@ -66,6 +67,12 @@ int main(int argc, char **argv)
exit(-2);
}
mode = SDL_GetDesktopDisplayMode(SDL_GetPrimaryDisplay());
if (!mode) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't get desktop display mode: %s", SDL_GetError());
exit(-2);
}
num_pictures = argc - 1;
pictures = (LoadedPicture *)SDL_malloc(sizeof(LoadedPicture) * num_pictures);
if (pictures == NULL) {
@ -151,7 +158,8 @@ int main(int argc, char **argv)
button_down = 0;
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION, "Changing to shaped bmp: %s", pictures[current_picture].name);
SDL_QueryTexture(pictures[current_picture].texture, &pixelFormat, &access, &w, &h);
SDL_SetWindowSize(window, w, h);
/* We want to set the window size in pixels */
SDL_SetWindowSize(window, (int)SDL_ceilf(w / mode->display_scale), (int)SDL_ceilf(h / mode->display_scale));
SDL_SetWindowShape(window, pictures[current_picture].surface, &pictures[current_picture].mode);
while (should_exit == 0) {
while (SDL_PollEvent(&event)) {
@ -170,7 +178,7 @@ int main(int argc, char **argv)
}
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION, "Changing to shaped bmp: %s", pictures[current_picture].name);
SDL_QueryTexture(pictures[current_picture].texture, &pixelFormat, &access, &w, &h);
SDL_SetWindowSize(window, w, h);
SDL_SetWindowSize(window, (int)SDL_ceilf(w / mode->display_scale), (int)SDL_ceilf(h / mode->display_scale));
SDL_SetWindowShape(window, pictures[current_picture].surface, &pictures[current_picture].mode);
}
if (event.type == SDL_EVENT_QUIT) {