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Refactor rendering code

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emersion 2018-04-06 13:27:01 -04:00
parent 516f5454ad
commit e550e22c0b
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1 changed files with 167 additions and 181 deletions
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sway/desktop/output.c
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@ -38,191 +38,201 @@ struct sway_container *output_by_name(const char *name) {
*/
static void rotate_child_position(double *sx, double *sy, double sw, double sh,
double pw, double ph, float rotation) {
if (rotation != 0.0) {
// Coordinates relative to the center of the subsurface
double ox = *sx - pw/2 + sw/2,
oy = *sy - ph/2 + sh/2;
// Rotated coordinates
double rx = cos(-rotation)*ox - sin(-rotation)*oy,
ry = cos(-rotation)*oy + sin(-rotation)*ox;
*sx = rx + pw/2 - sw/2;
*sy = ry + ph/2 - sh/2;
if (rotation == 0.0f) {
return;
}
// Coordinates relative to the center of the subsurface
double ox = *sx - pw/2 + sw/2,
oy = *sy - ph/2 + sh/2;
// Rotated coordinates
double rx = cos(-rotation)*ox - sin(-rotation)*oy,
ry = cos(-rotation)*oy + sin(-rotation)*ox;
*sx = rx + pw/2 - sw/2;
*sy = ry + ph/2 - sh/2;
}
/**
* Checks whether a surface at (lx, ly) intersects an output. If `box` is not
* NULL, it populates it with the surface box in the output, in output-local
* coordinates.
* Contains a surface's root geometry information. For instance, when rendering
* a popup, this will contain the parent view's position and size.
*/
static bool surface_intersect_output(struct wlr_surface *surface,
struct wlr_output_layout *output_layout, struct wlr_output *wlr_output,
double ox, double oy, float rotation, struct wlr_box *box) {
if (box != NULL) {
box->x = ox * wlr_output->scale;
box->y = oy * wlr_output->scale;
box->width = surface->current->width * wlr_output->scale;
box->height = surface->current->height * wlr_output->scale;
struct root_geometry {
double x, y;
int width, height;
float rotation;
};
static bool get_surface_box(struct root_geometry *geo,
struct sway_output *output, struct wlr_surface *surface, int sx, int sy,
struct wlr_box *surface_box) {
int sw = surface->current->width;
int sh = surface->current->height;
double _sx = sx, _sy = sy;
rotate_child_position(&_sx, &_sy, sw, sh, geo->width, geo->height,
geo->rotation);
struct wlr_box box = {
.x = geo->x + _sx,
.y = geo->y + _sy,
.width = sw,
.height = sh,
};
if (surface_box != NULL) {
memcpy(surface_box, &box, sizeof(struct wlr_box));
}
struct wlr_box layout_box = {
.x = wlr_output->lx + ox, .y = wlr_output->ly + oy,
.width = surface->current->width, .height = surface->current->height,
struct wlr_box rotated_box;
wlr_box_rotated_bounds(&box, geo->rotation, &rotated_box);
struct wlr_box output_box = {
.width = output->swayc->width,
.height = output->swayc->height,
};
wlr_box_rotated_bounds(&layout_box, rotation, &layout_box);
return wlr_output_layout_intersects(output_layout, wlr_output, &layout_box);
struct wlr_box intersection;
return wlr_box_intersection(&output_box, &rotated_box, &intersection);
}
static void render_surface(struct wlr_surface *surface,
struct wlr_output *wlr_output, struct timespec *when,
double ox, double oy, float rotation, float alpha) {
struct wlr_renderer *renderer =
wlr_backend_get_renderer(wlr_output->backend);
static void output_surface_for_each_surface(struct wlr_surface *surface,
double ox, double oy, float rotation, struct root_geometry *geo,
wlr_surface_iterator_func_t iterator, void *user_data) {
geo->x = ox;
geo->y = oy;
geo->width = surface->current->width;
geo->height = surface->current->height;
geo->rotation = rotation;
wlr_surface_for_each_surface(surface, iterator, user_data);
}
static void output_view_for_each_surface(struct sway_view *view,
struct root_geometry *geo, wlr_surface_iterator_func_t iterator,
void *user_data) {
geo->x = view->swayc->x;
geo->y = view->swayc->y;
geo->width = view->surface->current->width;
geo->height = view->surface->current->height;
geo->rotation = 0; // TODO
view_for_each_surface(view, iterator, user_data);
}
static void scale_box(struct wlr_box *box, float scale) {
box->x *= scale;
box->y *= scale;
box->width *= scale;
box->height *= scale;
}
struct render_data {
struct root_geometry root_geo;
struct sway_output *output;
struct timespec *when;
float alpha;
};
static void render_surface_iterator(struct wlr_surface *surface, int sx, int sy,
void *_data) {
struct render_data *data = _data;
struct wlr_output *wlr_output = data->output->wlr_output;
struct timespec *when = data->when;
float rotation = data->root_geo.rotation;
float alpha = data->alpha;
if (!wlr_surface_has_buffer(surface)) {
return;
}
struct wlr_output_layout *layout = root_container.sway_root->output_layout;
struct wlr_box box;
bool intersects = surface_intersect_output(surface, layout, wlr_output,
ox, oy, rotation, &box);
if (intersects) {
float matrix[9];
enum wl_output_transform transform =
wlr_output_transform_invert(surface->current->transform);
wlr_matrix_project_box(matrix, &box, transform, rotation,
wlr_output->transform_matrix);
wlr_render_texture_with_matrix(renderer, surface->texture,
matrix, alpha);
wlr_surface_send_frame_done(surface, when);
bool intersects = get_surface_box(&data->root_geo, data->output, surface,
sx, sy, &box);
if (!intersects) {
return;
}
struct wlr_subsurface *subsurface;
wl_list_for_each(subsurface, &surface->subsurface_list, parent_link) {
struct wlr_surface_state *state = subsurface->surface->current;
double sx = state->subsurface_position.x;
double sy = state->subsurface_position.y;
rotate_child_position(&sx, &sy, state->width, state->height,
surface->current->width, surface->current->height, rotation);
struct wlr_renderer *renderer =
wlr_backend_get_renderer(wlr_output->backend);
if (!sway_assert(renderer != NULL,
"expected the output backend to have a renderer")) {
return;
}
render_surface(subsurface->surface, wlr_output, when,
ox + sx, oy + sy, rotation, alpha);
scale_box(&box, wlr_output->scale);
float matrix[9];
enum wl_output_transform transform =
wlr_output_transform_invert(surface->current->transform);
wlr_matrix_project_box(matrix, &box, transform, rotation,
wlr_output->transform_matrix);
wlr_render_texture_with_matrix(renderer, surface->texture,
matrix, alpha);
// TODO: don't send the frame done event now
wlr_surface_send_frame_done(surface, when);
}
static void render_surface(struct sway_output *output, struct timespec *when,
struct wlr_surface *surface, double ox, double oy, float rotation) {
struct render_data data = {
.output = output,
.when = when,
.alpha = 1.0f,
};
output_surface_for_each_surface(surface, ox, oy, rotation, &data.root_geo,
render_surface_iterator, &data);
}
static void render_view(struct sway_output *output, struct timespec *when,
struct sway_view *view) {
struct render_data data = {
.output = output,
.when = when,
.alpha = view->swayc->alpha,
};
output_view_for_each_surface(view, &data.root_geo,
render_surface_iterator, &data);
}
static void render_layer(struct sway_output *output, struct timespec *when,
struct wl_list *layer_surfaces) {
struct sway_layer_surface *layer_surface;
wl_list_for_each(layer_surface, layer_surfaces, link) {
struct wlr_layer_surface *wlr_layer_surface =
layer_surface->layer_surface;
render_surface(output, when, wlr_layer_surface->surface,
layer_surface->geo.x, layer_surface->geo.y, 0);
}
}
static void render_xdg_v6_popups(struct wlr_xdg_surface_v6 *surface,
struct wlr_output *wlr_output, struct timespec *when, double base_x,
double base_y, float rotation, float alpha) {
double width = surface->surface->current->width;
double height = surface->surface->current->height;
struct wlr_xdg_popup_v6 *popup_state;
wl_list_for_each(popup_state, &surface->popups, link) {
struct wlr_xdg_surface_v6 *popup = popup_state->base;
if (!popup->configured) {
continue;
}
double popup_width = popup->surface->current->width;
double popup_height = popup->surface->current->height;
double popup_sx, popup_sy;
wlr_xdg_surface_v6_popup_get_position(popup, &popup_sx, &popup_sy);
rotate_child_position(&popup_sx, &popup_sy, popup_width, popup_height,
width, height, rotation);
render_surface(popup->surface, wlr_output, when,
base_x + popup_sx, base_y + popup_sy, rotation, alpha);
render_xdg_v6_popups(popup, wlr_output, when,
base_x + popup_sx, base_y + popup_sy, rotation, alpha);
}
}
static void render_wl_shell_surface(struct wlr_wl_shell_surface *surface,
struct wlr_output *wlr_output, struct timespec *when,
double lx, double ly, float rotation, float alpha,
bool is_child) {
if (is_child || surface->state != WLR_WL_SHELL_SURFACE_STATE_POPUP) {
render_surface(surface->surface, wlr_output, when,
lx, ly, rotation, alpha);
double width = surface->surface->current->width;
double height = surface->surface->current->height;
struct wlr_wl_shell_surface *popup;
wl_list_for_each(popup, &surface->popups, popup_link) {
double popup_width = popup->surface->current->width;
double popup_height = popup->surface->current->height;
double popup_x = popup->transient_state->x;
double popup_y = popup->transient_state->y;
rotate_child_position(&popup_x, &popup_y, popup_width, popup_height,
width, height, rotation);
render_wl_shell_surface(popup, wlr_output, when,
lx + popup_x, ly + popup_y, rotation, alpha, true);
}
}
}
struct render_data {
struct render_view_data {
struct sway_output *output;
struct timespec *when;
};
static void render_view(struct sway_container *view, void *data) {
struct render_data *rdata = data;
struct sway_output *output = rdata->output;
struct timespec *when = rdata->when;
struct wlr_output *wlr_output = output->wlr_output;
struct sway_view *sway_view = view->sway_view;
struct wlr_surface *surface = sway_view->surface;
float alpha = sway_view->swayc->alpha;
static void render_view_iterator(struct sway_container *con, void *_data) {
struct render_view_data *data = _data;
if (!surface) {
if (!sway_assert(con->type == C_VIEW, "expected a view")) {
return;
}
switch (sway_view->type) {
case SWAY_VIEW_XDG_SHELL_V6: {
int window_offset_x = view->sway_view->wlr_xdg_surface_v6->geometry.x;
int window_offset_y = view->sway_view->wlr_xdg_surface_v6->geometry.y;
render_surface(surface, wlr_output, when,
view->x - window_offset_x, view->y - window_offset_y, 0, alpha);
render_xdg_v6_popups(sway_view->wlr_xdg_surface_v6, wlr_output,
when, view->x - window_offset_x, view->y - window_offset_y, 0, alpha);
break;
}
case SWAY_VIEW_WL_SHELL:
render_wl_shell_surface(sway_view->wlr_wl_shell_surface, wlr_output,
when, view->x, view->y, 0, alpha, false);
break;
case SWAY_VIEW_XWAYLAND:
render_surface(surface, wlr_output, when, view->x, view->y, 0, alpha);
break;
}
}
static void render_layer(struct sway_output *output, struct timespec *when,
struct wl_list *layer) {
struct sway_layer_surface *sway_layer;
wl_list_for_each(sway_layer, layer, link) {
struct wlr_layer_surface *layer = sway_layer->layer_surface;
render_surface(layer->surface, output->wlr_output, when,
sway_layer->geo.x, sway_layer->geo.y, 0, 1.0f);
wlr_surface_send_frame_done(layer->surface, when);
}
render_view(data->output, data->when, con->sway_view);
}
static void render_output(struct sway_output *output, struct timespec *when,
pixman_region32_t *damage) {
struct wlr_output *wlr_output = output->wlr_output;
struct wlr_renderer *renderer =
wlr_backend_get_renderer(wlr_output->backend);
wlr_backend_get_renderer(wlr_output->backend);
if (!sway_assert(renderer != NULL,
"expected the output backend to have a renderer")) {
return;
}
wlr_renderer_begin(renderer, wlr_output->width, wlr_output->height);
@ -231,24 +241,15 @@ static void render_output(struct sway_output *output, struct timespec *when,
goto renderer_end;
}
// TODO: don't damage the whole output here
int width, height;
wlr_output_transformed_resolution(wlr_output, &width, &height);
pixman_region32_union_rect(damage, damage, 0, 0, width, height);
float clear_color[] = {0.25f, 0.25f, 0.25f, 1.0f};
wlr_renderer_clear(renderer, clear_color);
struct wlr_output_layout *output_layout =
root_container.sway_root->output_layout;
const struct wlr_box *output_box =
wlr_output_layout_get_box(output_layout, wlr_output);
render_layer(output, when,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND]);
render_layer(output, when,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM]);
// Render all views in the current workspace
struct sway_seat *seat = input_manager_current_seat(input_manager);
struct sway_container *focus =
seat_get_focus_inactive(seat, output->swayc);
@ -258,36 +259,21 @@ static void render_output(struct sway_output *output, struct timespec *when,
}
struct sway_container *workspace = focus->type == C_WORKSPACE ?
focus : container_parent(focus, C_WORKSPACE);
struct render_view_data data = { .output = output, .when = when };
container_descendants(workspace, C_VIEW, render_view_iterator, &data);
struct render_data rdata = {
.output = output,
.when = when,
};
container_descendants(workspace, C_VIEW, render_view, &rdata);
// render unmanaged views on top
// Render unmanaged views on top
struct wl_list *unmanaged = &root_container.sway_root->xwayland_unmanaged;
struct sway_xwayland_unmanaged *unmanaged_surface;
wl_list_for_each(unmanaged_surface, unmanaged, link) {
struct wlr_xwayland_surface *xsurface =
unmanaged_surface->wlr_xwayland_surface;
const struct wlr_box view_box = {
.x = unmanaged_surface->lx,
.y = unmanaged_surface->ly,
.width = xsurface->width,
.height = xsurface->height,
};
struct wlr_box intersection;
if (!wlr_box_intersection(&view_box, output_box, &intersection)) {
continue;
}
render_surface(xsurface->surface, wlr_output, &output->last_frame,
view_box.x - output_box->x, view_box.y - output_box->y, 0, 1.0f);
double ox = unmanaged_surface->lx - output->swayc->x;
double oy = unmanaged_surface->ly - output->swayc->y;
render_surface(output, when, xsurface->surface, ox, oy, 0);
}
// TODO: Consider revising this when fullscreen windows are supported
// TODO: consider revising this when fullscreen windows are supported
render_layer(output, when,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP]);
render_layer(output, when,