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wayland: trigger window resize when scale changes

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scale changes are applied by window_resize, so we need to make
sure it gets called when the scale has changed.
This commit is contained in:
bi4k8 2023-01-03 01:22:54 +00:00 committed by Brenden Matthews
parent 34d2a9ec76
commit 1c95c6d577
1 changed files with 17 additions and 11 deletions
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28
src/display-wayland.cc
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@ -279,7 +279,7 @@ struct window {
struct wl_shm *shm;
struct wl_surface *surface;
struct zwlr_layer_surface_v1 *layer_surface;
int scale;
int scale, pending_scale;
cairo_surface_t *cairo_surface;
cairo_t *cr;
PangoLayout *layout;
@ -324,7 +324,7 @@ static void output_done(void *data, struct wl_output *wl_output) {}
void output_scale(void *data, struct wl_output *wl_output, int32_t factor) {
/* For now, assume we have one output and adopt its scale unconditionally. */
/* We should also re-render immediately when scale changes. */
global_window->scale = factor;
global_window->pending_scale = factor;
}
#endif
@ -441,7 +441,6 @@ bool display_output_wayland::initialize() {
struct wl_surface *surface =
wl_compositor_create_surface(wl_globals.compositor);
global_window = window_create(surface, wl_globals.shm, 1, 1);
global_window->scale = 1;
window_allocate_buffer(global_window);
global_window->layer_surface = zwlr_layer_shell_v1_get_layer_surface(
@ -451,7 +450,6 @@ bool display_output_wayland::initialize() {
zwlr_layer_surface_v1_add_listener(global_window->layer_surface,
&layer_surface_listener, nullptr);
wl_surface_set_buffer_scale(global_window->surface, global_window->scale);
wl_surface_commit(global_window->surface);
wl_display_roundtrip(global_display);
@ -522,15 +520,21 @@ bool display_output_wayland::main_loop_wait(double t) {
int fixed_size = 0;
bool scale_changed = global_window->scale != global_window->pending_scale;
/* resize window if it isn't right size */
if ((fixed_size == 0) && (text_width + 2 * border_total != width ||
text_height + 2 * border_total != height)) {
text_height + 2 * border_total != height ||
scale_changed)) {
/* clamp text_width to configured maximum */
if (maximum_width.get(*state)) {
int mw = global_window->scale * maximum_width.get(*state);
if (text_width > mw && mw > 0) { text_width = mw; }
}
/* pending scale will be applied by resizing the window */
global_window->scale = global_window->pending_scale;
width = text_width + 2 * border_total;
height = text_height + 2 * border_total;
window_resize(global_window, width, height); /* resize window */
@ -1040,18 +1044,19 @@ static cairo_surface_t *create_shm_surface_from_pool(
void window_allocate_buffer(struct window *window) {
assert(window->shm != nullptr);
int scale = window->pending_scale;
struct shm_pool *pool;
pool = shm_pool_create(window->shm, data_length_for_shm_surface(
&window->rectangle, window->scale));
&window->rectangle, scale));
if (!pool) {
fprintf(stderr, "could not allocate shm pool\n");
return;
}
window->cairo_surface = create_shm_surface_from_pool(
window->shm, &window->rectangle, pool, window->scale);
cairo_surface_set_device_scale(window->cairo_surface, window->scale,
window->scale);
window->shm, &window->rectangle, pool, scale);
cairo_surface_set_device_scale(window->cairo_surface, scale, scale);
if (!window->cairo_surface) {
shm_pool_destroy(pool);
@ -1078,7 +1083,8 @@ struct window *window_create(struct wl_surface *surface, struct wl_shm *shm,
window->rectangle.y = 0;
window->rectangle.width = width;
window->rectangle.height = height;
window->scale = 1;
window->scale = 0;
window->pending_scale = 1;
window->surface = surface;
window->shm = shm;
@ -1123,7 +1129,7 @@ void window_resize(struct window *window, int width, int height) {
void window_commit_buffer(struct window *window) {
assert(window->cairo_surface != nullptr);
wl_surface_set_buffer_scale(global_window->surface, global_window->scale);
wl_surface_set_buffer_scale(global_window->surface, global_window->pending_scale);
wl_surface_attach(window->surface,
get_buffer_from_cairo_surface(window->cairo_surface), 0, 0);
/* repaint all the pixels in the surface, change size to only repaint changed