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#define _POSIX_C_SOURCE 199309L
#include <time.h>
#include <stdlib.h>
#include <stdbool.h>
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_compositor.h>
#include <wlr/types/wlr_wl_shell.h>
#include <wlr/types/wlr_xdg_shell_v6.h>
#include <wlr/render/matrix.h>
#include <wlr/util/log.h>
#include "rootston/server.h"
#include "rootston/desktop.h"
#include "rootston/config.h"
static inline int64_t timespec_to_msec(const struct timespec *a) {
return (int64_t)a->tv_sec * 1000 + a->tv_nsec / 1000000;
}
static void render_surface(struct wlr_surface *surface,
struct roots_desktop *desktop, struct wlr_output *wlr_output,
struct timespec *when, double lx, double ly, float rotation) {
wlr_surface_flush_damage(surface);
if (surface->texture->valid) {
int width = surface->current->buffer_width;
int height = surface->current->buffer_height;
double ox = lx, oy = ly;
wlr_output_layout_output_coords(desktop->layout, wlr_output, &ox, &oy);
if (wlr_output_layout_intersects(desktop->layout, wlr_output,
lx, ly, lx + width, ly + height)) {
float matrix[16];
float translate_origin[16];
wlr_matrix_translate(&translate_origin,
(int)ox + width / 2, (int)oy + height / 2, 0);
float rotate[16];
wlr_matrix_rotate(&rotate, rotation);
float translate_center[16];
wlr_matrix_translate(&translate_center, -width / 2, -height / 2, 0);
float transform[16];
wlr_matrix_mul(&translate_origin, &rotate, &transform);
wlr_matrix_mul(&transform, &translate_center, &transform);
wlr_surface_get_matrix(surface, &matrix,
&wlr_output->transform_matrix, &transform);
wlr_render_with_matrix(desktop->server->renderer,
surface->texture, &matrix);
struct wlr_frame_callback *cb, *cnext;
wl_list_for_each_safe(cb, cnext,
&surface->current->frame_callback_list, link) {
wl_callback_send_done(cb->resource, timespec_to_msec(when));
wl_resource_destroy(cb->resource);
}
}
struct wlr_subsurface *subsurface;
wl_list_for_each(subsurface, &surface->subsurface_list, parent_link) {
double sx = subsurface->surface->current->subsurface_position.x,
sy = subsurface->surface->current->subsurface_position.y;
double sw = subsurface->surface->current->buffer_width,
sh = subsurface->surface->current->buffer_height;
if (rotation != 0.0) {
// Coordinates relative to the center of the subsurface
double ox = sx - (double)width/2 + sw/2,
oy = sy - (double)height/2 + sh/2;
// Rotated coordinates
double rx = cos(-rotation)*ox - sin(-rotation)*oy,
ry = cos(-rotation)*oy + sin(-rotation)*ox;
sx = rx + (double)width/2 - sw/2;
sy = ry + (double)height/2 - sh/2;
}
render_surface(subsurface->surface, desktop, wlr_output, when,
lx + sx,
ly + sy,
rotation);
}
}
}
static void render_view(struct roots_view *view, struct roots_desktop *desktop,
struct wlr_output *wlr_output, struct timespec *when) {
render_surface(view->wlr_surface, desktop, wlr_output, when,
view->x, view->y, view->rotation);
}
static void output_frame_notify(struct wl_listener *listener, void *data) {
struct wlr_output *wlr_output = data;
struct roots_output *output = wl_container_of(listener, output, frame);
struct roots_desktop *desktop = output->desktop;
struct roots_server *server = desktop->server;
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
wlr_output_make_current(wlr_output);
wlr_renderer_begin(server->renderer, wlr_output);
for (size_t i = 0; i < desktop->views->length; ++i) {
struct roots_view *view = desktop->views->items[i];
render_view(view, desktop, wlr_output, &now);
}
wlr_renderer_end(server->renderer);
wlr_output_swap_buffers(wlr_output);
output->last_frame = desktop->last_frame = now;
}
void output_add_notify(struct wl_listener *listener, void *data) {
struct wlr_output *wlr_output = data;
struct roots_desktop *desktop = wl_container_of(listener, desktop, output_add);
struct roots_input *input = desktop->server->input;
struct roots_config *config = desktop->config;
wlr_log(L_DEBUG, "Output '%s' added", wlr_output->name);
wlr_log(L_DEBUG, "%s %s %"PRId32"mm x %"PRId32"mm",
wlr_output->make, wlr_output->model,
wlr_output->phys_width, wlr_output->phys_height);
if (wlr_output->modes->length > 0) {
wlr_output_set_mode(wlr_output, wlr_output->modes->items[0]);
}
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;
output->frame.notify = output_frame_notify;
wl_list_init(&output->frame.link);
wl_signal_add(&wlr_output->events.frame, &output->frame);
wl_list_insert(&desktop->outputs, &output->link);
struct output_config *output_config = config_get_output(config, wlr_output);
if (output_config) {
wlr_output_transform(wlr_output, output_config->transform);
wlr_output_layout_add(desktop->layout,
wlr_output, output_config->x, output_config->y);
} else {
wlr_output_layout_add_auto(desktop->layout, wlr_output);
}
cursor_load_config(config, input->cursor, input, desktop);
struct wlr_xcursor_image *image = input->xcursor->images[0];
// TODO the cursor must be set depending on which surface it is displayed
// over which should happen in the compositor.
if (!wlr_output_set_cursor(wlr_output, image->buffer,
image->width, image->width, image->height)) {
wlr_log(L_DEBUG, "Failed to set hardware cursor");
return;
}
wlr_cursor_warp(input->cursor, NULL, input->cursor->x, input->cursor->y);
}
void output_remove_notify(struct wl_listener *listener, void *data) {
struct wlr_output *wlr_output = data;
struct roots_desktop *desktop = wl_container_of(listener, desktop, output_remove);
struct roots_output *output = NULL, *_output;
wl_list_for_each(_output, &desktop->outputs, link) {
if (_output->wlr_output == wlr_output) {
output = _output;
break;
}
}
if (!output) {
return; // We are unfamiliar with this output
}
wlr_output_layout_remove(desktop->layout, output->wlr_output);
// TODO: cursor
//example_config_configure_cursor(sample->config, sample->cursor,
// sample->compositor);
wl_list_remove(&output->link);
wl_list_remove(&output->frame.link);
free(output);
}
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