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#define _POSIX_C_SOURCE 200809L
#include <assert.h>
#include <stdbool.h>
#include <stdlib.h>
#include <time.h>
#include <wlr/backend/drm.h>
#include <wlr/config.h>
#include <wlr/types/wlr_compositor.h>
#include <wlr/types/wlr_matrix.h>
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_presentation_time.h>
#include <wlr/types/wlr_wl_shell.h>
#include <wlr/types/wlr_xdg_shell_v6.h>
#include <wlr/types/wlr_xdg_shell.h>
#include <wlr/util/log.h>
#include <wlr/util/region.h>
#include "rootston/config.h"
#include "rootston/layers.h"
#include "rootston/output.h"
#include "rootston/server.h"
/**
* Rotate a child's position relative to a parent. The parent size is (pw, ph),
* the child position is (*sx, *sy) and its size is (sw, sh).
*/
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;
}
}
struct layout_data {
double x, y;
int width, height;
float rotation;
};
static void get_layout_position(struct layout_data *data, double *lx, double *ly,
const struct wlr_surface *surface, int sx, int sy) {
double _sx = sx, _sy = sy;
rotate_child_position(&_sx, &_sy, surface->current.width,
surface->current.height, data->width, data->height, data->rotation);
*lx = data->x + _sx;
*ly = data->y + _sy;
}
static void surface_for_each_surface(struct wlr_surface *surface,
double lx, double ly, float rotation, struct layout_data *layout_data,
wlr_surface_iterator_func_t iterator, void *user_data) {
layout_data->x = lx;
layout_data->y = ly;
layout_data->width = surface->current.width;
layout_data->height = surface->current.height;
layout_data->rotation = rotation;
wlr_surface_for_each_surface(surface, iterator, user_data);
}
static void view_for_each_surface(struct roots_view *view,
struct layout_data *layout_data, wlr_surface_iterator_func_t iterator,
void *user_data) {
layout_data->x = view->x;
layout_data->y = view->y;
layout_data->width = view->wlr_surface->current.width;
layout_data->height = view->wlr_surface->current.height;
layout_data->rotation = view->rotation;
switch (view->type) {
case ROOTS_XDG_SHELL_V6_VIEW:
wlr_xdg_surface_v6_for_each_surface(view->xdg_surface_v6, iterator,
user_data);
break;
case ROOTS_XDG_SHELL_VIEW:
wlr_xdg_surface_for_each_surface(view->xdg_surface, iterator,
user_data);
break;
case ROOTS_WL_SHELL_VIEW:
wlr_wl_shell_surface_for_each_surface(view->wl_shell_surface, iterator,
user_data);
break;
#if WLR_HAS_XWAYLAND
case ROOTS_XWAYLAND_VIEW:
wlr_surface_for_each_surface(view->wlr_surface, iterator, user_data);
break;
#endif
}
}
#if WLR_HAS_XWAYLAND
static void xwayland_children_for_each_surface(
struct wlr_xwayland_surface *surface,
wlr_surface_iterator_func_t iterator, struct layout_data *layout_data,
void *user_data) {
struct wlr_xwayland_surface *child;
wl_list_for_each(child, &surface->children, parent_link) {
if (child->mapped) {
surface_for_each_surface(child->surface, child->x, child->y, 0,
layout_data, iterator, user_data);
}
xwayland_children_for_each_surface(child, iterator, layout_data,
user_data);
}
}
#endif
static void drag_icons_for_each_surface(struct roots_input *input,
wlr_surface_iterator_func_t iterator, struct layout_data *layout_data,
void *user_data) {
struct roots_seat *seat;
wl_list_for_each(seat, &input->seats, link) {
struct roots_drag_icon *drag_icon;
wl_list_for_each(drag_icon, &seat->drag_icons, link) {
if (!drag_icon->wlr_drag_icon->mapped) {
continue;
}
surface_for_each_surface(drag_icon->wlr_drag_icon->surface,
drag_icon->x, drag_icon->y, 0, layout_data,
iterator, user_data);
}
}
}
static void layer_for_each_surface(struct wl_list *layer,
const struct wlr_box *output_layout_box,
wlr_surface_iterator_func_t iterator, struct layout_data *layout_data,
void *user_data) {
struct roots_layer_surface *roots_surface;
wl_list_for_each(roots_surface, layer, link) {
struct wlr_layer_surface_v1 *layer = roots_surface->layer_surface;
layout_data->x = roots_surface->geo.x + output_layout_box->x;
layout_data->y = roots_surface->geo.y + output_layout_box->y;
layout_data->width = roots_surface->geo.width;
layout_data->height = roots_surface->geo.height;
layout_data->rotation = 0;
wlr_layer_surface_v1_for_each_surface(layer, iterator, user_data);
}
}
static void output_for_each_surface(struct roots_output *output,
wlr_surface_iterator_func_t iterator, struct layout_data *layout_data,
void *user_data) {
struct wlr_output *wlr_output = output->wlr_output;
struct roots_desktop *desktop = output->desktop;
struct roots_server *server = desktop->server;
const struct wlr_box *output_box =
wlr_output_layout_get_box(desktop->layout, wlr_output);
if (output->fullscreen_view != NULL) {
struct roots_view *view = output->fullscreen_view;
view_for_each_surface(view, layout_data, iterator, user_data);
#if WLR_HAS_XWAYLAND
if (view->type == ROOTS_XWAYLAND_VIEW) {
xwayland_children_for_each_surface(view->xwayland_surface,
iterator, layout_data, user_data);
}
#endif
} else {
struct roots_view *view;
wl_list_for_each_reverse(view, &desktop->views, link) {
view_for_each_surface(view, layout_data, iterator, user_data);
}
drag_icons_for_each_surface(server->input, iterator,
layout_data, user_data);
}
size_t len = sizeof(output->layers) / sizeof(output->layers[0]);
for (size_t i = 0; i < len; ++i) {
layer_for_each_surface(&output->layers[i], output_box,
iterator, layout_data, user_data);
}
}
struct render_data {
struct layout_data layout;
struct roots_output *output;
struct timespec *when;
pixman_region32_t *damage;
float alpha;
};
/**
* 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.
*/
static bool surface_intersect_output(struct wlr_surface *surface,
struct wlr_output_layout *output_layout, struct wlr_output *wlr_output,
double lx, double ly, float rotation, struct wlr_box *box) {
double ox = lx, oy = ly;
wlr_output_layout_output_coords(output_layout, wlr_output, &ox, &oy);
ox += surface->sx;
oy += surface->sy;
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 wlr_box layout_box = {
.x = lx, .y = ly,
.width = surface->current.width, .height = surface->current.height,
};
wlr_box_rotated_bounds(&layout_box, rotation, &layout_box);
return wlr_output_layout_intersects(output_layout, wlr_output, &layout_box);
}
static void scissor_output(struct roots_output *output, pixman_box32_t *rect) {
struct wlr_output *wlr_output = output->wlr_output;
struct wlr_renderer *renderer = wlr_backend_get_renderer(wlr_output->backend);
assert(renderer);
struct wlr_box box = {
.x = rect->x1,
.y = rect->y1,
.width = rect->x2 - rect->x1,
.height = rect->y2 - rect->y1,
};
int ow, oh;
wlr_output_transformed_resolution(wlr_output, &ow, &oh);
enum wl_output_transform transform =
wlr_output_transform_invert(wlr_output->transform);
wlr_box_transform(&box, transform, ow, oh, &box);
wlr_renderer_scissor(renderer, &box);
}
static void render_surface(struct wlr_surface *surface, int sx, int sy,
void *_data) {
struct render_data *data = _data;
struct roots_output *output = data->output;
float rotation = data->layout.rotation;
struct wlr_texture *texture = wlr_surface_get_texture(surface);
if (texture == NULL) {
return;
}
struct wlr_renderer *renderer =
wlr_backend_get_renderer(output->wlr_output->backend);
assert(renderer);
double lx, ly;
get_layout_position(&data->layout, &lx, &ly, surface, sx, sy);
struct wlr_box box;
bool intersects = surface_intersect_output(surface, output->desktop->layout,
output->wlr_output, lx, ly, rotation, &box);
if (!intersects) {
return;
}
struct wlr_box rotated;
wlr_box_rotated_bounds(&box, rotation, &rotated);
pixman_region32_t damage;
pixman_region32_init(&damage);
pixman_region32_union_rect(&damage, &damage, rotated.x, rotated.y,
rotated.width, rotated.height);
pixman_region32_intersect(&damage, &damage, data->damage);
bool damaged = pixman_region32_not_empty(&damage);
if (!damaged) {
goto damage_finish;
}
float matrix[9];
enum wl_output_transform transform =
wlr_output_transform_invert(surface->current.transform);
wlr_matrix_project_box(matrix, &box, transform, rotation,
output->wlr_output->transform_matrix);
int nrects;
pixman_box32_t *rects = pixman_region32_rectangles(&damage, &nrects);
for (int i = 0; i < nrects; ++i) {
scissor_output(output, &rects[i]);
wlr_render_texture_with_matrix(renderer, texture, matrix, data->alpha);
}
damage_finish:
pixman_region32_fini(&damage);
}
static void get_decoration_box(struct roots_view *view,
struct roots_output *output, struct wlr_box *box) {
struct wlr_output *wlr_output = output->wlr_output;
struct wlr_box deco_box;
view_get_deco_box(view, &deco_box);
double sx = deco_box.x - view->x;
double sy = deco_box.y - view->y;
rotate_child_position(&sx, &sy, deco_box.width, deco_box.height,
view->wlr_surface->current.width,
view->wlr_surface->current.height, view->rotation);
double x = sx + view->x;
double y = sy + view->y;
wlr_output_layout_output_coords(output->desktop->layout, wlr_output, &x, &y);
box->x = x * wlr_output->scale;
box->y = y * wlr_output->scale;
box->width = deco_box.width * wlr_output->scale;
box->height = deco_box.height * wlr_output->scale;
}
static void render_decorations(struct roots_view *view,
struct render_data *data) {
if (!view->decorated || view->wlr_surface == NULL) {
return;
}
struct roots_output *output = data->output;
struct wlr_renderer *renderer =
wlr_backend_get_renderer(output->wlr_output->backend);
assert(renderer);
struct wlr_box box;
get_decoration_box(view, output, &box);
struct wlr_box rotated;
wlr_box_rotated_bounds(&box, view->rotation, &rotated);
pixman_region32_t damage;
pixman_region32_init(&damage);
pixman_region32_union_rect(&damage, &damage, rotated.x, rotated.y,
rotated.width, rotated.height);
pixman_region32_intersect(&damage, &damage, data->damage);
bool damaged = pixman_region32_not_empty(&damage);
if (!damaged) {
goto damage_finish;
}
float matrix[9];
wlr_matrix_project_box(matrix, &box, WL_OUTPUT_TRANSFORM_NORMAL,
view->rotation, output->wlr_output->transform_matrix);
float color[] = { 0.2, 0.2, 0.2, view->alpha };
int nrects;
pixman_box32_t *rects =
pixman_region32_rectangles(&damage, &nrects);
for (int i = 0; i < nrects; ++i) {
scissor_output(output, &rects[i]);
wlr_render_quad_with_matrix(renderer, color, matrix);
}
damage_finish:
pixman_region32_fini(&damage);
}
static void render_view(struct roots_view *view, struct render_data *data) {
// Do not render views fullscreened on other outputs
if (view->fullscreen_output != NULL &&
view->fullscreen_output != data->output) {
return;
}
data->alpha = view->alpha;
render_decorations(view, data);
view_for_each_surface(view, &data->layout, render_surface, data);
}
static void render_layer(struct roots_output *output,
const struct wlr_box *output_layout_box, struct render_data *data,
struct wl_list *layer) {
data->alpha = 1;
layer_for_each_surface(layer, output_layout_box, render_surface,
&data->layout, data);
}
static void surface_send_frame_done(struct wlr_surface *surface, int sx, int sy,
void *_data) {
struct render_data *data = _data;
struct roots_output *output = data->output;
struct timespec *when = data->when;
float rotation = data->layout.rotation;
double lx, ly;
get_layout_position(&data->layout, &lx, &ly, surface, sx, sy);
if (!surface_intersect_output(surface, output->desktop->layout,
output->wlr_output, lx, ly, rotation, NULL)) {
return;
}
wlr_surface_send_frame_done(surface, when);
}
static void render_output(struct roots_output *output) {
struct wlr_output *wlr_output = output->wlr_output;
struct roots_desktop *desktop = output->desktop;
struct roots_server *server = desktop->server;
struct wlr_renderer *renderer = wlr_backend_get_renderer(wlr_output->backend);
assert(renderer);
if (!wlr_output->enabled) {
return;
}
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
float clear_color[] = {0.25f, 0.25f, 0.25f, 1.0f};
const struct wlr_box *output_box =
wlr_output_layout_get_box(desktop->layout, wlr_output);
// Check if we can delegate the fullscreen surface to the output
if (output->fullscreen_view != NULL &&
output->fullscreen_view->wlr_surface != NULL) {
struct roots_view *view = output->fullscreen_view;
// Make sure the view is centered on screen
struct wlr_box view_box;
view_get_box(view, &view_box);
double view_x = (double)(output_box->width - view_box.width) / 2 +
output_box->x;
double view_y = (double)(output_box->height - view_box.height) / 2 +
output_box->y;
view_move(view, view_x, view_y);
// Fullscreen views are rendered on a black background
clear_color[0] = clear_color[1] = clear_color[2] = 0;
}
bool needs_swap;
pixman_region32_t damage;
pixman_region32_init(&damage);
if (!wlr_output_damage_make_current(output->damage, &needs_swap, &damage)) {
return;
}
struct render_data data = {
.output = output,
.when = &now,
.damage = &damage,
.alpha = 1.0,
};
if (!needs_swap) {
// Output doesn't need swap and isn't damaged, skip rendering completely
goto damage_finish;
}
wlr_renderer_begin(renderer, wlr_output->width, wlr_output->height);
if (!pixman_region32_not_empty(&damage)) {
// Output isn't damaged but needs buffer swap
goto renderer_end;
}
if (server->config->debug_damage_tracking) {
wlr_renderer_clear(renderer, (float[]){1, 1, 0, 1});
}
int nrects;
pixman_box32_t *rects = pixman_region32_rectangles(&damage, &nrects);
for (int i = 0; i < nrects; ++i) {
scissor_output(output, &rects[i]);
wlr_renderer_clear(renderer, clear_color);
}
render_layer(output, output_box, &data,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND]);
render_layer(output, output_box, &data,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM]);
// If a view is fullscreen on this output, render it
if (output->fullscreen_view != NULL) {
struct roots_view *view = output->fullscreen_view;
if (view->wlr_surface != NULL) {
view_for_each_surface(view, &data.layout, render_surface, &data);
}
// During normal rendering the xwayland window tree isn't traversed
// because all windows are rendered. Here we only want to render
// the fullscreen window's children so we have to traverse the tree.
#if WLR_HAS_XWAYLAND
if (view->type == ROOTS_XWAYLAND_VIEW) {
xwayland_children_for_each_surface(view->xwayland_surface,
render_surface, &data.layout, &data);
}
#endif
} else {
// Render all views
struct roots_view *view;
wl_list_for_each_reverse(view, &desktop->views, link) {
render_view(view, &data);
}
// Render top layer above shell views
render_layer(output, output_box, &data,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP]);
}
// Render drag icons
data.alpha = 1.0;
drag_icons_for_each_surface(server->input, render_surface, &data.layout,
&data);
render_layer(output, output_box, &data,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY]);
renderer_end:
wlr_output_render_software_cursors(wlr_output, &damage);
wlr_renderer_scissor(renderer, NULL);
wlr_renderer_end(renderer);
int width, height;
wlr_output_transformed_resolution(wlr_output, &width, &height);
if (server->config->debug_damage_tracking) {
pixman_region32_union_rect(&damage, &damage, 0, 0, width, height);
}
enum wl_output_transform transform =
wlr_output_transform_invert(wlr_output->transform);
wlr_region_transform(&damage, &damage, transform, width, height);
if (!wlr_output_damage_swap_buffers(output->damage, &now, &damage)) {
goto damage_finish;
}
output->last_frame = desktop->last_frame = now;
damage_finish:
pixman_region32_fini(&damage);
// Send frame done events to all surfaces
output_for_each_surface(output, surface_send_frame_done,
&data.layout, &data);
}
void output_damage_whole(struct roots_output *output) {
wlr_output_damage_add_whole(output->damage);
}
static bool view_accept_damage(struct roots_output *output,
struct roots_view *view) {
if (view->wlr_surface == NULL) {
return false;
}
if (output->fullscreen_view == NULL) {
return true;
}
if (output->fullscreen_view == view) {
return true;
}
#if WLR_HAS_XWAYLAND
if (output->fullscreen_view->type == ROOTS_XWAYLAND_VIEW &&
view->type == ROOTS_XWAYLAND_VIEW) {
// Special case: accept damage from children
struct wlr_xwayland_surface *xsurface = view->xwayland_surface;
while (xsurface != NULL) {
if (output->fullscreen_view->xwayland_surface == xsurface) {
return true;
}
xsurface = xsurface->parent;
}
}
#endif
return false;
}
struct damage_data {
struct layout_data layout;
struct roots_output *output;
};
static void damage_whole_surface(struct wlr_surface *surface, int sx, int sy,
void *_data) {
struct damage_data *data = _data;
struct roots_output *output = data->output;
float rotation = data->layout.rotation;
double lx, ly;
get_layout_position(&data->layout, &lx, &ly, surface, sx, sy);
if (!wlr_surface_has_buffer(surface)) {
return;
}
int ow, oh;
wlr_output_transformed_resolution(output->wlr_output, &ow, &oh);
struct wlr_box box;
bool intersects = surface_intersect_output(surface, output->desktop->layout,
output->wlr_output, lx, ly, rotation, &box);
if (!intersects) {
return;
}
wlr_box_rotated_bounds(&box, rotation, &box);
wlr_output_damage_add_box(output->damage, &box);
}
void output_damage_whole_local_surface(struct roots_output *output,
struct wlr_surface *surface, double ox, double oy, float rotation) {
struct wlr_output_layout_output *layout = wlr_output_layout_get(
output->desktop->layout, output->wlr_output);
struct damage_data data = { .output = output };
surface_for_each_surface(surface, ox + layout->x, oy + layout->y, 0,
&data.layout, damage_whole_surface, &data);
}
static void damage_whole_decoration(struct roots_view *view,
struct roots_output *output) {
if (!view->decorated || view->wlr_surface == NULL) {
return;
}
struct wlr_box box;
get_decoration_box(view, output, &box);
wlr_box_rotated_bounds(&box, view->rotation, &box);
wlr_output_damage_add_box(output->damage, &box);
}
void output_damage_whole_view(struct roots_output *output,
struct roots_view *view) {
if (!view_accept_damage(output, view)) {
return;
}
damage_whole_decoration(view, output);
struct damage_data data = { .output = output };
view_for_each_surface(view, &data.layout, damage_whole_surface, &data);
}
void output_damage_whole_drag_icon(struct roots_output *output,
struct roots_drag_icon *icon) {
struct damage_data data = { .output = output };
surface_for_each_surface(icon->wlr_drag_icon->surface, icon->x, icon->y, 0,
&data.layout, damage_whole_surface, &data);
}
static void damage_from_surface(struct wlr_surface *surface, int sx, int sy,
void *_data) {
struct damage_data *data = _data;
struct roots_output *output = data->output;
struct wlr_output *wlr_output = output->wlr_output;
float rotation = data->layout.rotation;
double lx, ly;
get_layout_position(&data->layout, &lx, &ly, surface, sx, sy);
if (!wlr_surface_has_buffer(surface)) {
return;
}
int ow, oh;
wlr_output_transformed_resolution(wlr_output, &ow, &oh);
struct wlr_box box;
surface_intersect_output(surface, output->desktop->layout,
wlr_output, lx, ly, rotation, &box);
int center_x = box.x + box.width/2;
int center_y = box.y + box.height/2;
pixman_region32_t damage;
pixman_region32_init(&damage);
wlr_surface_get_effective_damage(surface, &damage);
wlr_region_scale(&damage, &damage, wlr_output->scale);
if (ceil(wlr_output->scale) > surface->current.scale) {
// When scaling up a surface, it'll become blurry so we need to
// expand the damage region
wlr_region_expand(&damage, &damage,
ceil(wlr_output->scale) - surface->current.scale);
}
pixman_region32_translate(&damage, box.x, box.y);
wlr_region_rotated_bounds(&damage, &damage, rotation, center_x, center_y);
wlr_output_damage_add(output->damage, &damage);
pixman_region32_fini(&damage);
}
void output_damage_from_local_surface(struct roots_output *output,
struct wlr_surface *surface, double ox, double oy, float rotation) {
struct wlr_output_layout_output *layout = wlr_output_layout_get(
output->desktop->layout, output->wlr_output);
struct damage_data data = { .output = output };
surface_for_each_surface(surface, ox + layout->x, oy + layout->y, 0,
&data.layout, damage_from_surface, &data);
}
void output_damage_from_view(struct roots_output *output,
struct roots_view *view) {
if (!view_accept_damage(output, view)) {
return;
}
struct damage_data data = { .output = output };
view_for_each_surface(view, &data.layout, damage_from_surface, &data);
}
static void set_mode(struct wlr_output *output,
struct roots_output_config *oc) {
int mhz = (int)(oc->mode.refresh_rate * 1000);
if (wl_list_empty(&output->modes)) {
// Output has no mode, try setting a custom one
wlr_output_set_custom_mode(output, oc->mode.width, oc->mode.height, mhz);
return;
}
struct wlr_output_mode *mode, *best = NULL;
wl_list_for_each(mode, &output->modes, link) {
if (mode->width == oc->mode.width && mode->height == oc->mode.height) {
if (mode->refresh == mhz) {
best = mode;
break;
}
best = mode;
}
}
if (!best) {
wlr_log(WLR_ERROR, "Configured mode for %s not available", output->name);
} else {
wlr_log(WLR_DEBUG, "Assigning configured mode to %s", output->name);
wlr_output_set_mode(output, best);
}
}
static void output_destroy(struct roots_output *output) {
// TODO: cursor
//example_config_configure_cursor(sample->config, sample->cursor,
// sample->compositor);
wl_list_remove(&output->link);
wl_list_remove(&output->destroy.link);
wl_list_remove(&output->mode.link);
wl_list_remove(&output->transform.link);
wl_list_remove(&output->present.link);
wl_list_remove(&output->damage_frame.link);
wl_list_remove(&output->damage_destroy.link);
free(output);
}
static void output_handle_destroy(struct wl_listener *listener, void *data) {
struct roots_output *output = wl_container_of(listener, output, destroy);
output_destroy(output);
}
static void output_damage_handle_frame(struct wl_listener *listener,
void *data) {
struct roots_output *output =
wl_container_of(listener, output, damage_frame);
render_output(output);
}
static void output_damage_handle_destroy(struct wl_listener *listener,
void *data) {
struct roots_output *output =
wl_container_of(listener, output, damage_destroy);
output_destroy(output);
}
static void output_handle_mode(struct wl_listener *listener, void *data) {
struct roots_output *output =
wl_container_of(listener, output, mode);
arrange_layers(output);
}
static void output_handle_transform(struct wl_listener *listener, void *data) {
struct roots_output *output =
wl_container_of(listener, output, transform);
arrange_layers(output);
}
struct presentation_data {
struct layout_data layout;
struct roots_output *output;
struct wlr_presentation_event *event;
};
static void surface_send_presented(struct wlr_surface *surface, int sx, int sy,
void *_data) {
struct presentation_data *data = _data;
struct roots_output *output = data->output;
float rotation = data->layout.rotation;
double lx, ly;
get_layout_position(&data->layout, &lx, &ly, surface, sx, sy);
if (!surface_intersect_output(surface, output->desktop->layout,
output->wlr_output, lx, ly, rotation, NULL)) {
return;
}
wlr_presentation_send_surface_presented(output->desktop->presentation,
surface, data->event);
}
static void output_handle_present(struct wl_listener *listener, void *data) {
struct roots_output *output =
wl_container_of(listener, output, present);
struct wlr_output_event_present *output_event = data;
struct wlr_presentation_event event = {
.output = output->wlr_output,
.tv_sec = (uint64_t)output_event->when->tv_sec,
.tv_nsec = (uint32_t)output_event->when->tv_nsec,
.refresh = (uint32_t)output_event->refresh,
.seq = (uint64_t)output_event->seq,
.flags = output_event->flags,
};
struct presentation_data presentation_data = {
.output = output,
.event = &event,
};
output_for_each_surface(output, surface_send_presented,
&presentation_data.layout, &presentation_data);
}
void handle_new_output(struct wl_listener *listener, void *data) {
struct roots_desktop *desktop = wl_container_of(listener, desktop,
new_output);
struct wlr_output *wlr_output = data;
struct roots_input *input = desktop->server->input;
struct roots_config *config = desktop->config;
wlr_log(WLR_DEBUG, "Output '%s' added", wlr_output->name);
wlr_log(WLR_DEBUG, "'%s %s %s' %"PRId32"mm x %"PRId32"mm", wlr_output->make,
wlr_output->model, wlr_output->serial, wlr_output->phys_width,
wlr_output->phys_height);
struct roots_output *output = calloc(1, sizeof(struct roots_output));
clock_gettime(CLOCK_MONOTONIC, &output->last_frame);
output->desktop = desktop;
output->wlr_output = wlr_output;
wlr_output->data = output;
wl_list_insert(&desktop->outputs, &output->link);
output->damage = wlr_output_damage_create(wlr_output);
output->destroy.notify = output_handle_destroy;
wl_signal_add(&wlr_output->events.destroy, &output->destroy);
output->mode.notify = output_handle_mode;
wl_signal_add(&wlr_output->events.mode, &output->mode);
output->transform.notify = output_handle_transform;
wl_signal_add(&wlr_output->events.transform, &output->transform);
output->present.notify = output_handle_present;
wl_signal_add(&wlr_output->events.present, &output->present);
output->damage_frame.notify = output_damage_handle_frame;
wl_signal_add(&output->damage->events.frame, &output->damage_frame);
output->damage_destroy.notify = output_damage_handle_destroy;
wl_signal_add(&output->damage->events.destroy, &output->damage_destroy);
size_t len = sizeof(output->layers) / sizeof(output->layers[0]);
for (size_t i = 0; i < len; ++i) {
wl_list_init(&output->layers[i]);
}
struct roots_output_config *output_config =
roots_config_get_output(config, wlr_output);
if ((!output_config || output_config->enable) && !wl_list_empty(&wlr_output->modes)) {
struct wlr_output_mode *mode =
wl_container_of(wlr_output->modes.prev, mode, link);
wlr_output_set_mode(wlr_output, mode);
}
if (output_config) {
if (output_config->enable) {
if (wlr_output_is_drm(wlr_output)) {
struct roots_output_mode_config *mode_config;
wl_list_for_each(mode_config, &output_config->modes, link) {
wlr_drm_connector_add_mode(wlr_output, &mode_config->info);
}
} else if (!wl_list_empty(&output_config->modes)) {
wlr_log(WLR_ERROR, "Can only add modes for DRM backend");
}
if (output_config->mode.width) {
set_mode(wlr_output, output_config);
}
wlr_output_set_scale(wlr_output, output_config->scale);
wlr_output_set_transform(wlr_output, output_config->transform);
wlr_output_layout_add(desktop->layout, wlr_output, output_config->x,
output_config->y);
} else {
wlr_output_enable(wlr_output, false);
}
} else {
wlr_output_layout_add_auto(desktop->layout, wlr_output);
}
struct roots_seat *seat;
wl_list_for_each(seat, &input->seats, link) {
roots_seat_configure_cursor(seat);
roots_seat_configure_xcursor(seat);
}
arrange_layers(output);
output_damage_whole(output);
}