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output: switch swap_buffers damage to output-buffer-local coords
This is one more step towards [1]. This gives more freedom to the compositor wrt. how it handles damage. [1]: https://github.com/swaywm/wlroots/issues/1363
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a22311ec76
commit
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3 changed files with 12 additions and 14 deletions
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@ -121,7 +121,7 @@ struct wlr_output {
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struct wlr_output_event_swap_buffers {
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struct wlr_output *output;
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struct timespec *when;
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pixman_region32_t *damage;
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pixman_region32_t *damage; // output-buffer-local coordinates
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};
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enum wlr_output_present_flag {
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@ -203,6 +203,9 @@ bool wlr_output_preferred_read_format(struct wlr_output *output,
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* NULL. If the compositor doesn't support damage tracking, set `damage` to
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* NULL.
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*
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* Damage is given in output-buffer-local coordinates (ie. scaled and
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* transformed).
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*
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* Swapping buffers schedules a `frame` event.
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*/
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bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when,
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@ -522,12 +522,17 @@ renderer_end:
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wlr_renderer_scissor(renderer, NULL);
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wlr_renderer_end(renderer);
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if (server->config->debug_damage_tracking) {
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int width, height;
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wlr_output_transformed_resolution(wlr_output, &width, &height);
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if (server->config->debug_damage_tracking) {
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pixman_region32_union_rect(&damage, &damage, 0, 0, width, height);
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}
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enum wl_output_transform transform =
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wlr_output_transform_invert(wlr_output->transform);
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wlr_region_transform(&damage, &damage, transform, width, height);
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if (!wlr_output_damage_swap_buffers(output->damage, &now, &damage)) {
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goto damage_finish;
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}
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@ -365,9 +365,6 @@ bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when,
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output->idle_frame = NULL;
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}
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int width, height;
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wlr_output_transformed_resolution(output, &width, &height);
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struct timespec now;
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if (when == NULL) {
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clock_gettime(CLOCK_MONOTONIC, &now);
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@ -384,19 +381,12 @@ bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when,
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pixman_region32_t render_damage;
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pixman_region32_init(&render_damage);
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pixman_region32_union_rect(&render_damage, &render_damage, 0, 0,
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width, height);
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output->width, output->height);
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if (damage != NULL) {
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// Damage tracking supported
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pixman_region32_intersect(&render_damage, &render_damage, damage);
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}
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// Transform damage into renderer coordinates, ie. upside down
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// TODO: take transformed coords, make the renderer flip the damage
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enum wl_output_transform transform =
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wlr_output_transform_invert(output->transform);
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wlr_region_transform(&render_damage, &render_damage, transform,
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width, height);
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if (!output->impl->swap_buffers(output, damage ? &render_damage : NULL)) {
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pixman_region32_fini(&render_damage);
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return false;
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