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scene: Don't rely on output current state during rendering 

In the next commit, state such as scale, transform, width/height that
we gather from the output might be outdated and incorrect.
This commit is contained in:
Alexander Orzechowski 2023-06-09 04:28:41 -04:00 committed by Simon Ser
parent ae7bad86dd
commit 7e67b8152b
1 changed files with 69 additions and 70 deletions
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139
types/scene/wlr_scene.c
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@ -285,20 +285,27 @@ static void scale_output_damage(pixman_region32_t *damage, float scale) {
}
}
static void transform_output_damage(pixman_region32_t *damage, struct wlr_output *output) {
int ow, oh;
wlr_output_transformed_resolution(output, &ow, &oh);
enum wl_output_transform transform =
wlr_output_transform_invert(output->transform);
wlr_region_transform(damage, damage, transform, ow, oh);
struct render_data {
enum wl_output_transform transform;
float scale;
struct wlr_box logical;
struct wlr_scene_output *output;
struct wlr_render_pass *render_pass;
pixman_region32_t damage;
};
static void transform_output_damage(pixman_region32_t *damage, const struct render_data *data) {
enum wl_output_transform transform = wlr_output_transform_invert(data->transform);
wlr_region_transform(damage, damage, transform,
data->logical.width, data->logical.height);
}
static void transform_output_box(struct wlr_box *box, struct wlr_output *output) {
int ow, oh;
wlr_output_transformed_resolution(output, &ow, &oh);
enum wl_output_transform transform =
wlr_output_transform_invert(output->transform);
wlr_box_transform(box, box, transform, ow, oh);
static void transform_output_box(struct wlr_box *box, const struct render_data *data) {
enum wl_output_transform transform = wlr_output_transform_invert(data->transform);
wlr_box_transform(box, box, transform,
data->logical.width, data->logical.height);
}
static void scene_damage_outputs(struct wlr_scene *scene, pixman_region32_t *damage) {
@ -1072,22 +1079,19 @@ struct wlr_scene_node *wlr_scene_node_at(struct wlr_scene_node *node,
return NULL;
}
static void scene_node_render(struct wlr_scene_node *node,
struct wlr_scene_output *scene_output, struct wlr_render_pass *render_pass,
pixman_region32_t *damage) {
static void scene_node_render(struct wlr_scene_node *node, const struct render_data *data) {
int x, y;
wlr_scene_node_coords(node, &x, &y);
x -= scene_output->x;
y -= scene_output->y;
struct wlr_output *output = scene_output->output;
x -= data->logical.x;
y -= data->logical.y;
pixman_region32_t render_region;
pixman_region32_init(&render_region);
pixman_region32_copy(&render_region, &node->visible);
pixman_region32_translate(&render_region, -scene_output->x, -scene_output->y);
scale_output_damage(&render_region, output->scale);
pixman_region32_intersect(&render_region, &render_region, damage);
pixman_region32_translate(&render_region, -data->logical.x, -data->logical.y);
scale_output_damage(&render_region, data->scale);
pixman_region32_intersect(&render_region, &render_region, &data->damage);
if (!pixman_region32_not_empty(&render_region)) {
pixman_region32_fini(&render_region);
return;
@ -1098,13 +1102,11 @@ static void scene_node_render(struct wlr_scene_node *node,
.y = y,
};
scene_node_get_size(node, &dst_box.width, &dst_box.height);
scale_box(&dst_box, output->scale);
scale_box(&dst_box, data->scale);
transform_output_box(&dst_box, output);
transform_output_damage(&render_region, output);
transform_output_box(&dst_box, data);
transform_output_damage(&render_region, data);
struct wlr_texture *texture;
enum wl_output_transform transform;
switch (node->type) {
case WLR_SCENE_NODE_TREE:
assert(false);
@ -1112,7 +1114,7 @@ static void scene_node_render(struct wlr_scene_node *node,
case WLR_SCENE_NODE_RECT:;
struct wlr_scene_rect *scene_rect = wlr_scene_rect_from_node(node);
wlr_render_pass_add_rect(render_pass, &(struct wlr_render_rect_options){
wlr_render_pass_add_rect(data->render_pass, &(struct wlr_render_rect_options){
.box = dst_box,
.color = {
.r = scene_rect->color[0],
@ -1127,16 +1129,17 @@ static void scene_node_render(struct wlr_scene_node *node,
struct wlr_scene_buffer *scene_buffer = wlr_scene_buffer_from_node(node);
assert(scene_buffer->buffer);
struct wlr_renderer *renderer = output->renderer;
texture = scene_buffer_get_texture(scene_buffer, renderer);
struct wlr_texture *texture = scene_buffer_get_texture(scene_buffer,
data->output->output->renderer);
if (texture == NULL) {
break;
}
transform = wlr_output_transform_invert(scene_buffer->transform);
transform = wlr_output_transform_compose(transform, output->transform);
enum wl_output_transform transform =
wlr_output_transform_invert(scene_buffer->transform);
transform = wlr_output_transform_compose(transform, data->transform);
wlr_render_pass_add_texture(render_pass, &(struct wlr_render_texture_options) {
wlr_render_pass_add_texture(data->render_pass, &(struct wlr_render_texture_options) {
.texture = texture,
.src_box = scene_buffer->src_box,
.dst_box = dst_box,
@ -1145,7 +1148,7 @@ static void scene_node_render(struct wlr_scene_node *node,
.alpha = &scene_buffer->opacity,
});
wl_signal_emit_mutable(&scene_buffer->events.output_present, scene_output);
wl_signal_emit_mutable(&scene_buffer->events.output_present, data->output);
break;
}
@ -1461,7 +1464,8 @@ static void scene_buffer_send_dmabuf_feedback(const struct wlr_scene *scene,
}
static bool scene_buffer_can_consider_direct_scanout(struct wlr_scene_buffer *buffer,
const struct wlr_scene_output *scene_output) {
const struct render_data *data) {
const struct wlr_scene_output *scene_output = data->output;
struct wlr_scene_node *node = &buffer->node;
if (!scene_output->scene->direct_scanout) {
@ -1497,7 +1501,7 @@ static bool scene_buffer_can_consider_direct_scanout(struct wlr_scene_buffer *bu
return false;
}
if (buffer->transform != scene_output->output->transform) {
if (buffer->transform != data->transform) {
return false;
}
@ -1505,14 +1509,7 @@ static bool scene_buffer_can_consider_direct_scanout(struct wlr_scene_buffer *bu
wlr_scene_node_coords(node, &node_box.x, &node_box.y);
scene_node_get_size(node, &node_box.width, &node_box.height);
struct wlr_box box = {
.x = scene_output->x,
.y = scene_output->y,
};
wlr_output_effective_resolution(scene_output->output, &box.width, &box.height);
if (!wlr_box_equal(&box, &node_box)) {
if (!wlr_box_equal(&data->logical, &node_box)) {
return false;
}
@ -1550,21 +1547,26 @@ bool wlr_scene_output_commit(struct wlr_scene_output *scene_output) {
enum wlr_scene_debug_damage_option debug_damage =
scene_output->scene->debug_damage_option;
struct wlr_renderer *renderer = output->renderer;
assert(renderer != NULL);
if (!output->needs_frame && !pixman_region32_not_empty(
&scene_output->damage_ring.current)) {
return true;
}
struct render_data render_data = {
.transform = output->transform,
.scale = output->scale,
.logical = { .x = scene_output->x, .y = scene_output->y },
.output = scene_output,
};
wlr_output_effective_resolution(output,
&render_data.logical.width, &render_data.logical.height);
struct render_list_constructor_data list_con = {
.box = { .x = scene_output->x, .y = scene_output->y },
.box = render_data.logical,
.render_list = &scene_output->render_list,
.calculate_visibility = scene_output->scene->calculate_visibility,
};
wlr_output_effective_resolution(output,
&list_con.box.width, &list_con.box.height);
list_con.render_list->size = 0;
scene_nodes_in_box(&scene_output->scene->tree.node, &list_con.box,
@ -1585,7 +1587,7 @@ bool wlr_scene_output_commit(struct wlr_scene_output *scene_output) {
if (node->type == WLR_SCENE_NODE_BUFFER) {
struct wlr_scene_buffer *buffer = wlr_scene_buffer_from_node(node);
if (scene_buffer_can_consider_direct_scanout(buffer, scene_output)) {
if (scene_buffer_can_consider_direct_scanout(buffer, &render_data)) {
if (buffer->primary_output == scene_output) {
struct wlr_linux_dmabuf_feedback_v1_init_options options = {
.main_renderer = output->renderer,
@ -1668,28 +1670,25 @@ bool wlr_scene_output_commit(struct wlr_scene_output *scene_output) {
return false;
}
pixman_region32_t damage;
pixman_region32_init(&damage);
wlr_damage_ring_get_buffer_damage(&scene_output->damage_ring,
buffer_age, &damage);
struct wlr_render_pass *render_pass = wlr_renderer_begin_buffer_pass(renderer, buffer, NULL);
struct wlr_render_pass *render_pass = wlr_renderer_begin_buffer_pass(output->renderer, buffer, NULL);
if (render_pass == NULL) {
pixman_region32_fini(&damage);
wlr_buffer_unlock(buffer);
return false;
}
render_data.render_pass = render_pass;
pixman_region32_init(&render_data.damage);
wlr_damage_ring_get_buffer_damage(&scene_output->damage_ring,
buffer_age, &render_data.damage);
pixman_region32_t background;
pixman_region32_init(&background);
pixman_region32_copy(&background, &damage);
pixman_region32_copy(&background, &render_data.damage);
// Cull areas of the background that are occluded by opaque regions of
// scene nodes above. Those scene nodes will just render atop having us
// never see the background.
if (scene_output->scene->calculate_visibility) {
float output_scale = scene_output->output->scale;
for (int i = list_len - 1; i >= 0; i--) {
struct wlr_scene_node *node = list_data[i];
int x, y;
@ -1706,23 +1705,23 @@ bool wlr_scene_output_commit(struct wlr_scene_output *scene_output) {
pixman_region32_intersect(&opaque, &opaque, &node->visible);
pixman_region32_translate(&opaque, -scene_output->x, -scene_output->y);
wlr_region_scale(&opaque, &opaque, output_scale);
wlr_region_scale(&opaque, &opaque, render_data.scale);
pixman_region32_subtract(&background, &background, &opaque);
pixman_region32_fini(&opaque);
}
if (floor(output_scale) != output_scale) {
if (floor(render_data.scale) != render_data.scale) {
wlr_region_expand(&background, &background, 1);
// reintersect with the damage because we never want to render
// outside of the damage region
pixman_region32_intersect(&background, &background, &damage);
pixman_region32_intersect(&background, &background, &render_data.damage);
}
}
transform_output_damage(&background, output);
transform_output_damage(&background, &render_data);
wlr_render_pass_add_rect(render_pass, &(struct wlr_render_rect_options){
.box = { .width = output->width, .height = output->height },
.box = { .width = buffer->width, .height = buffer->height },
.color = { .r = 0, .g = 0, .b = 0, .a = 1 },
.clip = &background,
});
@ -1730,7 +1729,7 @@ bool wlr_scene_output_commit(struct wlr_scene_output *scene_output) {
for (int i = list_len - 1; i >= 0; i--) {
struct wlr_scene_node *node = list_data[i];
scene_node_render(node, scene_output, render_pass, &damage);
scene_node_render(node, &render_data);
if (node->type == WLR_SCENE_NODE_BUFFER) {
struct wlr_scene_buffer *buffer = wlr_scene_buffer_from_node(node);
@ -1755,16 +1754,16 @@ bool wlr_scene_output_commit(struct wlr_scene_output *scene_output) {
float alpha = 1.0 - (double)time_diff_ms / HIGHLIGHT_DAMAGE_FADEOUT_TIME;
wlr_render_pass_add_rect(render_pass, &(struct wlr_render_rect_options){
.box = { .width = output->width, .height = output->height },
.box = { .width = buffer->width, .height = buffer->height },
.color = { .r = alpha * 0.5, .g = 0, .b = 0, .a = alpha * 0.5 },
.clip = &damage->region,
});
}
}
wlr_output_add_software_cursors_to_render_pass(output, render_pass, &damage);
wlr_output_add_software_cursors_to_render_pass(output, render_pass, &render_data.damage);
pixman_region32_fini(&damage);
pixman_region32_fini(&render_data.damage);
if (!wlr_render_pass_submit(render_pass)) {
wlr_buffer_unlock(buffer);