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output: add wlr_output_state_init()

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This changes the semantics of wlr_output_state. Instead of having
fields with uninitialized memory when missing from the committed
bitflag, all fields are always initialized (and maybe NULL/empty),
just like we do in wlr_surface_state. This reduces the chances of
footguns when reading a field, and removes the need to check for
the committed bitfield everywhere.

A new wlr_output_state_init() function takes care of initializing
the Pixman region.
This commit is contained in:
Simon Ser 2023-06-22 15:48:35 +02:00 • committed by Alexander Orzechowski
parent 8a5b5e6f28
commit be05097968
19 changed files with 103 additions and 103 deletions
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6
examples/simple.c
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@ -62,7 +62,8 @@ static void output_frame_notify(struct wl_listener *listener, void *data) {
sample->dec = inc;
}
struct wlr_output_state state = {0};
struct wlr_output_state state;
wlr_output_state_init(&state);
struct wlr_render_pass *pass = wlr_output_begin_render_pass(wlr_output, &state, NULL, NULL);
wlr_render_pass_add_rect(pass, &(struct wlr_render_rect_options){
.box = { .width = wlr_output->width, .height = wlr_output->height },
@ -107,7 +108,8 @@ static void new_output_notify(struct wl_listener *listener, void *data) {
struct wlr_output_mode *mode = wlr_output_preferred_mode(output);
if (mode != NULL) {
struct wlr_output_state state = {0};
struct wlr_output_state state;
wlr_output_state_init(&state);
wlr_output_state_set_mode(&state, mode);
wlr_output_commit_state(sample_output->output, &state);
wlr_output_state_finish(&state);