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Add client support for HiDPI

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This adds HiDPI support to swaybar, swaybg, and swaylock.
This commit is contained in:
Drew DeVault 2016-09-05 11:36:48 -04:00
parent 61184e3208
commit b2226ac655
9 changed files with 96 additions and 61 deletions
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15
wayland/buffers.c
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@ -50,8 +50,10 @@ static const struct wl_buffer_listener buffer_listener = {
};
static struct buffer *create_buffer(struct window *window, struct buffer *buf,
int32_t width, int32_t height, uint32_t format) {
int32_t width, int32_t height, int32_t scale, uint32_t format) {
width *= scale;
height *= scale;
uint32_t stride = width * 4;
uint32_t size = stride * height;
@ -63,7 +65,8 @@ static struct buffer *create_buffer(struct window *window, struct buffer *buf,
}
void *data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
struct wl_shm_pool *pool = wl_shm_create_pool(window->registry->shm, fd, size);
buf->buffer = wl_shm_pool_create_buffer(pool, 0, width, height, stride, format);
buf->buffer = wl_shm_pool_create_buffer(pool, 0,
width, height, stride, format);
wl_shm_pool_destroy(pool);
close(fd);
unlink(name);
@ -72,10 +75,10 @@ static struct buffer *create_buffer(struct window *window, struct buffer *buf,
buf->width = width;
buf->height = height;
buf->surface = cairo_image_surface_create_for_data(data, CAIRO_FORMAT_ARGB32, width, height, stride);
buf->surface = cairo_image_surface_create_for_data(data,
CAIRO_FORMAT_ARGB32, width, height, stride);
buf->cairo = cairo_create(buf->surface);
buf->pango = pango_cairo_create_context(buf->cairo);
pango_cairo_context_set_resolution(buf->pango, 96 * 2);
wl_buffer_add_listener(buf->buffer, &buffer_listener, buf);
return buf;
@ -114,7 +117,9 @@ struct buffer *get_next_buffer(struct window *window) {
}
if (!buffer->buffer) {
if (!create_buffer(window, buffer, window->width, window->height, WL_SHM_FORMAT_ARGB8888)) {
if (!create_buffer(window, buffer,
window->width, window->height, window->scale,
WL_SHM_FORMAT_ARGB8888)) {
return NULL;
}
}