diff --git a/app/src/screen.c b/app/src/screen.c index 0ca1343b..5c1c0a93 100644 --- a/app/src/screen.c +++ b/app/src/screen.c @@ -30,10 +30,10 @@ get_rotated_size(struct size size, int rotation) { // get the window size in a struct size static struct size -get_window_size(SDL_Window *window) { +get_window_size(const struct screen *screen) { int width; int height; - SDL_GetWindowSize(window, &width, &height); + SDL_GetWindowSize(screen->window, &width, &height); struct size size; size.width = width; @@ -41,31 +41,12 @@ get_window_size(SDL_Window *window) { return size; } -// get the windowed window size -static struct size -get_windowed_window_size(const struct screen *screen) { - if (screen->fullscreen || screen->maximized) { - return screen->windowed_window_size; - } - return get_window_size(screen->window); -} - -// apply the windowed window size if fullscreen and maximized are disabled -static void -apply_windowed_size(struct screen *screen) { - if (!screen->fullscreen && !screen->maximized) { - SDL_SetWindowSize(screen->window, screen->windowed_window_size.width, - screen->windowed_window_size.height); - } -} - // set the window size to be applied when fullscreen is disabled static void set_window_size(struct screen *screen, struct size new_size) { - // setting the window size during fullscreen is implementation defined, - // so apply the resize only after fullscreen is disabled - screen->windowed_window_size = new_size; - apply_windowed_size(screen); + assert(!screen->fullscreen); + assert(!screen->maximized); + SDL_SetWindowSize(screen->window, new_size.width, new_size.height); } // get the preferred display bounds (i.e. the screen bounds with some margins) @@ -138,8 +119,8 @@ get_optimal_size(struct size current_size, struct size content_size) { // same as get_optimal_size(), but read the current size from the window static inline struct size get_optimal_window_size(const struct screen *screen, struct size content_size) { - struct size windowed_size = get_windowed_window_size(screen); - return get_optimal_size(windowed_size, content_size); + struct size window_size = get_window_size(screen); + return get_optimal_size(window_size, content_size); } // initially, there is no current size, so use the frame size as current size @@ -308,8 +289,6 @@ screen_init_rendering(struct screen *screen, const char *window_title, return false; } - screen->windowed_window_size = window_size; - return true; } @@ -332,20 +311,44 @@ screen_destroy(struct screen *screen) { } static void -set_content_size(struct screen *screen, struct size new_content_size) { - struct size old_content_size = screen->content_size; - struct size windowed_size = get_windowed_window_size(screen); +resize_for_content(struct screen *screen, struct size old_content_size, + struct size new_content_size) { + struct size window_size = get_window_size(screen); struct size target_size = { - .width = (uint32_t) windowed_size.width * new_content_size.width + .width = (uint32_t) window_size.width * new_content_size.width / old_content_size.width, - .height = (uint32_t) windowed_size.height * new_content_size.height + .height = (uint32_t) window_size.height * new_content_size.height / old_content_size.height, }; target_size = get_optimal_size(target_size, new_content_size); set_window_size(screen, target_size); +} + +static void +set_content_size(struct screen *screen, struct size new_content_size) { + if (!screen->fullscreen && !screen->maximized) { + resize_for_content(screen, screen->content_size, new_content_size); + } else if (!screen->resize_pending) { + // Store the windowed size to be able to compute the optimal size once + // fullscreen and maximized are disabled + screen->windowed_content_size = screen->content_size; + screen->resize_pending = true; + } + screen->content_size = new_content_size; } +static void +apply_pending_resize(struct screen *screen) { + assert(!screen->fullscreen); + assert(!screen->maximized); + if (screen->resize_pending) { + resize_for_content(screen, screen->windowed_content_size, + screen->content_size); + screen->resize_pending = false; + } +} + void screen_set_rotation(struct screen *screen, unsigned rotation) { assert(rotation < 4); @@ -471,7 +474,9 @@ screen_switch_fullscreen(struct screen *screen) { } screen->fullscreen = !screen->fullscreen; - apply_windowed_size(screen); + if (!screen->fullscreen && !screen->maximized) { + apply_pending_resize(screen); + } LOGD("Switched to %s mode", screen->fullscreen ? "fullscreen" : "windowed"); screen_render(screen); @@ -520,36 +525,14 @@ screen_handle_window_event(struct screen *screen, screen_render(screen); break; case SDL_WINDOWEVENT_SIZE_CHANGED: - if (!screen->fullscreen && !screen->maximized) { - // Backup the previous size: if we receive the MAXIMIZED event, - // then the new size must be ignored (it's the maximized size). - // We could not rely on the window flags due to race conditions - // (they could be updated asynchronously, at least on X11). - screen->windowed_window_size_backup = - screen->windowed_window_size; - - // Save the windowed size, so that it is available once the - // window is maximized or fullscreen is enabled. - screen->windowed_window_size = get_window_size(screen->window); - } screen_render(screen); break; case SDL_WINDOWEVENT_MAXIMIZED: - // The backup size must be non-nul. - assert(screen->windowed_window_size_backup.width); - assert(screen->windowed_window_size_backup.height); - // Revert the last size, it was updated while screen was maximized. - screen->windowed_window_size = screen->windowed_window_size_backup; -#ifdef DEBUG - // Reset the backup to invalid values to detect unexpected usage - screen->windowed_window_size_backup.width = 0; - screen->windowed_window_size_backup.height = 0; -#endif screen->maximized = true; break; case SDL_WINDOWEVENT_RESTORED: screen->maximized = false; - apply_windowed_size(screen); + apply_pending_resize(screen); break; } } diff --git a/app/src/screen.h b/app/src/screen.h index 85514279..7703b5a2 100644 --- a/app/src/screen.h +++ b/app/src/screen.h @@ -21,11 +21,12 @@ struct screen { struct sc_opengl gl; struct size frame_size; struct size content_size; // rotated frame_size - // The window size the last time it was not maximized or fullscreen. - struct size windowed_window_size; - // Since we receive the event SIZE_CHANGED before MAXIMIZED, we must be - // able to revert the size to its non-maximized value. - struct size windowed_window_size_backup; + + bool resize_pending; // resize requested while fullscreen or maximized + // The content size the last time the window was not maximized or + // fullscreen (meaningful only when resize_pending is true) + struct size windowed_content_size; + // client rotation: 0, 1, 2 or 3 (x90 degrees counterclockwise) unsigned rotation; bool has_frame; @@ -49,11 +50,8 @@ struct screen { .width = 0, \ .height = 0, \ }, \ - .windowed_window_size = { \ - .width = 0, \ - .height = 0, \ - }, \ - .windowed_window_size_backup = { \ + .resize_pending = false, \ + .windowed_content_size = { \ .width = 0, \ .height = 0, \ }, \