diff options
-rw-r--r-- | include/wlr/types/wlr_scene.h | 4 | ||||
-rw-r--r-- | types/scene/wlr_scene.c | 93 |
2 files changed, 97 insertions, 0 deletions
diff --git a/include/wlr/types/wlr_scene.h b/include/wlr/types/wlr_scene.h index 17516aaf..538b8941 100644 --- a/include/wlr/types/wlr_scene.h +++ b/include/wlr/types/wlr_scene.h @@ -109,6 +109,10 @@ struct wlr_scene_output { struct wlr_output_damage *damage; int x, y; + + // private state + + bool prev_scanout; }; typedef void (*wlr_scene_node_iterator_func_t)(struct wlr_scene_node *node, diff --git a/types/scene/wlr_scene.c b/types/scene/wlr_scene.c index ddb6f21c..940886a6 100644 --- a/types/scene/wlr_scene.c +++ b/types/scene/wlr_scene.c @@ -7,6 +7,7 @@ #include <wlr/types/wlr_output_damage.h> #include <wlr/types/wlr_scene.h> #include <wlr/types/wlr_surface.h> +#include <wlr/util/log.h> #include <wlr/util/region.h> #include "util/signal.h" @@ -835,12 +836,104 @@ void wlr_scene_output_set_position(struct wlr_scene_output *scene_output, wlr_output_damage_add_whole(scene_output->damage); } +struct check_scanout_data { + // in + struct wlr_box viewport_box; + // out + struct wlr_scene_node *node; + size_t n; +}; + +static void check_scanout_iterator(struct wlr_scene_node *node, + int x, int y, void *_data) { + struct check_scanout_data *data = _data; + + struct wlr_box node_box = { .x = x, .y = y }; + scene_node_get_size(node, &node_box.width, &node_box.height); + + struct wlr_box intersection; + if (!wlr_box_intersection(&intersection, &data->viewport_box, &node_box)) { + return; + } + + data->n++; + + if (data->viewport_box.x == node_box.x && + data->viewport_box.y == node_box.y && + data->viewport_box.width == node_box.width && + data->viewport_box.height == node_box.height) { + data->node = node; + } +} + +static bool scene_output_scanout(struct wlr_scene_output *scene_output) { + struct wlr_output *output = scene_output->output; + + struct wlr_box viewport_box = { .x = scene_output->x, .y = scene_output->y }; + wlr_output_effective_resolution(output, + &viewport_box.width, &viewport_box.height); + + struct check_scanout_data check_scanout_data = { + .viewport_box = viewport_box, + }; + scene_node_for_each_node(&scene_output->scene->node, 0, 0, + check_scanout_iterator, &check_scanout_data); + if (check_scanout_data.n != 1 || check_scanout_data.node == NULL) { + return false; + } + + struct wlr_scene_node *node = check_scanout_data.node; + struct wlr_buffer *buffer; + switch (node->type) { + case WLR_SCENE_NODE_SURFACE:; + struct wlr_scene_surface *scene_surface = wlr_scene_surface_from_node(node); + if (scene_surface->surface->buffer == NULL || + scene_surface->surface->current.viewport.has_src || + scene_surface->surface->current.transform != output->transform) { + return false; + } + buffer = &scene_surface->surface->buffer->base; + break; + case WLR_SCENE_NODE_BUFFER:; + struct wlr_scene_buffer *scene_buffer = scene_buffer_from_node(node); + if (scene_buffer->buffer == NULL || + !wlr_fbox_empty(&scene_buffer->src_box) || + scene_buffer->transform != output->transform) { + return false; + } + buffer = scene_buffer->buffer; + break; + default: + return false; + } + + wlr_output_attach_buffer(output, buffer); + if (!wlr_output_test(output)) { + wlr_output_rollback(output); + return false; + } + + return wlr_output_commit(output); +} + bool wlr_scene_output_commit(struct wlr_scene_output *scene_output) { struct wlr_output *output = scene_output->output; struct wlr_renderer *renderer = wlr_backend_get_renderer(output->backend); assert(renderer != NULL); + bool scanout = scene_output_scanout(scene_output); + if (scanout != scene_output->prev_scanout) { + wlr_log(WLR_DEBUG, "Direct scan-out %s", + scanout ? "enabled" : "disabled"); + // When exiting direct scan-out, damage everything + wlr_output_damage_add_whole(scene_output->damage); + } + scene_output->prev_scanout = scanout; + if (scanout) { + return true; + } + bool needs_frame; pixman_region32_t damage; pixman_region32_init(&damage); |