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Print an 'oops' when the wl_buffer is still attached during drawing

pull/3/head
Andri Yngvason 2020-12-06 19:30:46 +00:00
parent c45613dbe7
commit 7c8c29beb2
1 changed files with 19 additions and 2 deletions
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21
src/main.c
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@ -43,6 +43,7 @@ struct buffer {
enum wl_shm_format format;
struct wl_buffer* wl_buffer;
void* pixels;
bool is_attached;
};
struct window {
@ -130,6 +131,17 @@ static const struct wl_registry_listener registry_listener = {
.global_remove = registry_remove,
};
static void buffer_release(void* data, struct wl_buffer* wl_buffer)
{
(void)wl_buffer;
struct buffer* self = data;
self->is_attached = false;
}
static const struct wl_buffer_listener buffer_listener = {
.release = buffer_release,
};
static struct buffer* buffer_create(int width, int height, int stride,
enum wl_shm_format format)
{
@ -163,6 +175,9 @@ static struct buffer* buffer_create(int width, int height, int stride,
goto shm_failure;
close(fd);
wl_buffer_add_listener(self->wl_buffer, &buffer_listener, self);
return self;
shm_failure:
@ -263,6 +278,7 @@ static int init_signal_handler(void)
static void window_attach(struct window* w, int x, int y)
{
w->buffer->is_attached = true;
wl_surface_attach(w->wl_surface, w->buffer->wl_buffer, x, y);
}
@ -436,8 +452,9 @@ void on_vnc_client_update_fb(struct vnc_client* client)
if (!pixman_region_not_empty(&client->damage))
return;
// TODO: Make sure that the buffer is released at this point, or make
// this a side-buffer and copy damaged regions into double buffers.
if (window->buffer->is_attached)
fprintf(stderr, "Oops, buffer is still attached.\n");
window_attach(window, 0, 0);
int n_rects = 0;