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Add option to specify the initial window size

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Add --window-width and --window-height parameters.

If only one is provided, the other is computed so that the aspect ratio
is preserved.
This commit is contained in:
Romain Vimont
2019-11-03 18:00:11 +01:00
parent b6e2f8ae00
commit 9fd7a80a89
6 changed files with 89 additions and 6 deletions
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31
app/src/screen.c
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@@ -122,9 +122,30 @@ get_optimal_window_size(const struct screen *screen, struct size frame_size) {
}
// initially, there is no current size, so use the frame size as current size
// req_width and req_height, if not 0, are the sizes requested by the user
static inline struct size
get_initial_optimal_size(struct size frame_size) {
return get_optimal_size(frame_size, frame_size);
get_initial_optimal_size(struct size frame_size, uint16_t req_width,
uint16_t req_height) {
struct size window_size;
if (!req_width && !req_height) {
window_size = get_optimal_size(frame_size, frame_size);
} else {
if (req_width) {
window_size.width = req_width;
} else {
// compute from the requested height
window_size.width = (uint32_t) req_height * frame_size.width
/ frame_size.height;
}
if (req_height) {
window_size.height = req_height;
} else {
// compute from the requested width
window_size.height = (uint32_t) req_width * frame_size.height
/ frame_size.width;
}
}
return window_size;
}
void
@@ -142,10 +163,12 @@ create_texture(SDL_Renderer *renderer, struct size frame_size) {
bool
screen_init_rendering(struct screen *screen, const char *window_title,
struct size frame_size, bool always_on_top,
int16_t window_x, int16_t window_y) {
int16_t window_x, int16_t window_y, uint16_t window_width,
uint16_t window_height) {
screen->frame_size = frame_size;
struct size window_size = get_initial_optimal_size(frame_size);
struct size window_size =
get_initial_optimal_size(frame_size, window_width, window_height);
uint32_t window_flags = SDL_WINDOW_HIDDEN | SDL_WINDOW_RESIZABLE;
#ifdef HIDPI_SUPPORT
window_flags |= SDL_WINDOW_ALLOW_HIGHDPI;