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output: restrict provided damage to output bounds

This commit is contained in:
emersion 2018-01-29 23:21:30 +01:00
parent 4cc58288cb
commit 2cc989e097
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GPG Key ID: 0FDE7BE0E88F5E48
1 changed files with 14 additions and 15 deletions
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29
types/wlr_output.c
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@ -474,14 +474,16 @@ bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when,
pixman_region32_t *damage) {
wl_signal_emit(&output->events.swap_buffers, damage);
pixman_region32_t *render_damage = damage;
if (damage == NULL) {
// Damage tracking not supported, repaint the whole output
pixman_region32_t output_damage;
pixman_region32_init(&output_damage);
pixman_region32_union_rect(&output_damage, &output_damage,
0, 0, output->width, output->height);
render_damage = &output_damage;
int width, height;
output_get_transformed_size(output, &width, &height);
pixman_region32_t render_damage;
pixman_region32_init(&render_damage);
pixman_region32_union_rect(&render_damage, &render_damage, 0, 0,
width, height);
if (damage != NULL) {
// Damage tracking supported
pixman_region32_intersect(&render_damage, &render_damage, damage);
}
if (when == NULL) {
@ -490,10 +492,10 @@ bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when,
when = &now;
}
if (pixman_region32_not_empty(render_damage)) {
if (pixman_region32_not_empty(&render_damage)) {
if (output->fullscreen_surface != NULL) {
output_fullscreen_surface_render(output, output->fullscreen_surface,
when, render_damage);
when, &render_damage);
}
struct wlr_output_cursor *cursor;
@ -502,7 +504,7 @@ bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when,
output->hardware_cursor == cursor) {
continue;
}
output_cursor_render(cursor, when, render_damage);
output_cursor_render(cursor, when, &render_damage);
}
}
@ -515,10 +517,7 @@ bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when,
output->needs_swap = false;
pixman_region32_clear(&output->damage);
if (damage == NULL) {
pixman_region32_fini(render_damage);
}
pixman_region32_fini(&render_damage);
return true;
}