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toaruos/apps/compositor.c

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/* vim: tabstop=4 shiftwidth=4 noexpandtab
* This file is part of ToaruOS and is released under the terms
* of the NCSA / University of Illinois License - see LICENSE.md
* Copyright (C) 2013-2018 K. Lange
*
* Yutani - The ToaruOS Compositor.
*
* Yutani is a canvas-based window compositor and manager.
* It employs shared memory to provide clients access to
* canvases in which they may render, while using a packet-based
* socket interface to communicate actions between the server
* and client such as keyboard activity, mouse movement, responses
* to client events, etc., as well as to communicate requests from
* the client to the server, such as creation of new windows,
* movement, resizing, and display updates.
*/
#include <stdio.h>
#include <stdint.h>
#include <syscall.h>
#include <string.h>
#include <stdlib.h>
#include <signal.h>
#include <fcntl.h>
#include <unistd.h>
#include <time.h>
#include <math.h>
#include <assert.h>
#include <getopt.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/fswait.h>
#include <pthread.h>
#include <dlfcn.h>
/* auto-dep: export-dynamic */
#include <toaru/graphics.h>
#include <toaru/mouse.h>
#include <toaru/kbd.h>
#include <toaru/pex.h>
#include <toaru/yutani.h>
#include <toaru/yutani-internal.h>
#include <toaru/yutani-server.h>
#include <toaru/hashmap.h>
#include <toaru/list.h>
#include <toaru/spinlock.h>
//#define _DEBUG_YUTANI
#ifdef _DEBUG_YUTANI
#include <toaru/trace.h>
#define TRACE_APP_NAME "yutani"
#else
#define TRACE(msg,...)
#endif
/* Early definitions */
static void mark_window(yutani_globals_t * yg, yutani_server_window_t * window);
static void window_actually_close(yutani_globals_t * yg, yutani_server_window_t * w);
static void notify_subscribers(yutani_globals_t * yg);
static int (*renderer_alloc)(yutani_globals_t * yg) = NULL;
static int (*renderer_init)(yutani_globals_t * yg) = NULL;
static int (*renderer_add_clip)(yutani_globals_t * yg, double x, double y, double w, double h) = NULL;
static int (*renderer_set_clip)(yutani_globals_t * yg) = NULL;
static int (*renderer_push_state)(yutani_globals_t * yg) = NULL;
static int (*renderer_pop_state)(yutani_globals_t * yg) = NULL;
static int (*renderer_destroy)(yutani_globals_t * yg) = NULL;
static int (*renderer_blit_window)(yutani_globals_t * yg, yutani_server_window_t * window, int x, int y);
static int (*renderer_blit_screen)(yutani_globals_t * yg) = NULL;
/**
* Print usage information.
*/
static int usage(char * argv[]) {
fprintf(stderr,
"Yutani - Window Compositor\n"
"\n"
"usage: %s [-n [-g WxH]] [-h]\n"
"\n"
" -n --nested \033[3mRun in a window.\033[0m\n"
" -h --help \033[3mShow this help message.\033[0m\n"
" -g --geometry \033[3mSet the size of the server framebuffer.\033[0m\n"
"\n"
" Yutani is the standard system compositor.\n"
"\n",
argv[0]);
return 1;
}
/**
* Parse arguments
*/
static int parse_args(int argc, char * argv[], int * out) {
static struct option long_opts[] = {
{"nested", no_argument, 0, 'n'},
{"geometry", required_argument, 0, 'g'},
{"help", no_argument, 0, 'h'},
{0,0,0,0}
};
int index, c;
while ((c = getopt_long(argc, argv, "hg:n", long_opts, &index)) != -1) {
if (!c) {
if (long_opts[index].flag == 0) {
c = long_opts[index].val;
}
}
switch (c) {
case 'h':
return usage(argv);
case 'n':
yutani_options.nested = 1;
break;
case 'g':
{
char * c = strstr(optarg, "x");
if (c) {
*c = '\0';
c++;
yutani_options.nest_width = atoi(optarg);
yutani_options.nest_height = atoi(c);
}
}
break;
default:
fprintf(stderr, "Unrecognized option: %c\n", c);
break;
}
}
*out = optind;
return 0;
}
static void try_load_extensions(yutani_globals_t * yg) {
if (renderer_init) {
/* Already have a renderer extension loaded */
return;
}
/* Try to load cairo */
void * cairo = dlopen("libtoaru_ext_cairo_renderer.so", 0);
if (cairo) {
renderer_alloc = dlsym(cairo, "renderer_alloc");
renderer_init = dlsym(cairo, "renderer_init");
renderer_add_clip = dlsym(cairo, "renderer_add_clip");
renderer_set_clip = dlsym(cairo, "renderer_set_clip");
renderer_push_state = dlsym(cairo, "renderer_push_state");
renderer_pop_state = dlsym(cairo, "renderer_pop_state");
renderer_destroy = dlsym(cairo, "renderer_destroy");
renderer_blit_window = dlsym(cairo, "renderer_blit_window");
renderer_blit_screen = dlsym(cairo, "renderer_blit_screen");
}
/* On success, these are now set */
if (renderer_alloc) renderer_alloc(yg);
if (renderer_init) renderer_init(yg);
}
static int32_t min(int32_t a, int32_t b) {
return (a < b) ? a : b;
}
static int32_t max(int32_t a, int32_t b) {
return (a > b) ? a : b;
}
static int next_buf_id(void) {
static int _next = 1;
return _next++;
}
static int next_wid(void) {
static int _next = 1;
return _next++;
}
uint32_t yutani_current_time(yutani_globals_t * yg) {
struct timeval t;
gettimeofday(&t, NULL);
time_t sec_diff = t.tv_sec - yg->start_time;
suseconds_t usec_diff = t.tv_usec - yg->start_subtime;
if (t.tv_usec < yg->start_subtime) {
sec_diff -= 1;
usec_diff = (1000000 + t.tv_usec) - yg->start_subtime;
}
return (uint32_t)(sec_diff * 1000 + usec_diff / 1000);
}
uint32_t yutani_time_since(yutani_globals_t * yg, uint32_t start_time) {
uint32_t now = yutani_current_time(yg);
uint32_t diff = now - start_time; /* Milliseconds */
return diff;
}
/**
* Translate and transform coordinate from screen-relative to window-relative.
*/
void yutani_device_to_window(yutani_server_window_t * window, int32_t x, int32_t y, int32_t * out_x, int32_t * out_y) {
if (!window) {
*out_x = 0;
*out_y = 0;
return;
}
*out_x = x - window->x;
*out_y = y - window->y;
if (!window->rotation) return;
double t_x = *out_x - (window->width / 2);
double t_y = *out_y - (window->height / 2);
double s = sin(-M_PI * (window->rotation/ 180.0));
double c = cos(-M_PI * (window->rotation/ 180.0));
double n_x = t_x * c - t_y * s;
double n_y = t_x * s + t_y * c;
*out_x = (int32_t)n_x + (window->width / 2);
*out_y = (int32_t)n_y + (window->height / 2);
}
/**
* Translate and transform coordinate from window-relative to screen-relative.
*/
void yutani_window_to_device(yutani_server_window_t * window, int32_t x, int32_t y, int32_t * out_x, int32_t * out_y) {
if (!window->rotation) {
*out_x = window->x + x;
*out_y = window->y + y;
return;
}
double t_x = x - (window->width / 2);
double t_y = y - (window->height / 2);
double s = sin(M_PI * (window->rotation/ 180.0));
double c = cos(M_PI * (window->rotation/ 180.0));
double n_x = t_x * c - t_y * s;
double n_y = t_x * s + t_y * c;
*out_x = (int32_t)n_x + (window->width / 2) + window->x;
*out_y = (int32_t)n_y + (window->height / 2) + window->y;
}
/**
* Remove a window from the z stack.
*/
static void unorder_window(yutani_globals_t * yg, yutani_server_window_t * w) {
unsigned short index = w->z;
w->z = -1;
if (index == YUTANI_ZORDER_BOTTOM) {
yg->bottom_z = NULL;
return;
}
if (index == YUTANI_ZORDER_TOP) {
yg->top_z = NULL;
return;
}
node_t * n = list_find(yg->mid_zs, w);
if (!n) return;
list_delete(yg->mid_zs, n);
free(n);
}
/**
* Move a window to a new stack order.
*/
static void reorder_window(yutani_globals_t * yg, yutani_server_window_t * window, uint16_t new_zed) {
if (!window) {
return;
}
spin_lock(&yg->redraw_lock);
unorder_window(yg, window);
spin_unlock(&yg->redraw_lock);
window->z = new_zed;
if (new_zed != YUTANI_ZORDER_TOP && new_zed != YUTANI_ZORDER_BOTTOM) {
spin_lock(&yg->redraw_lock);
list_insert(yg->mid_zs, window);
spin_unlock(&yg->redraw_lock);
return;
}
if (new_zed == YUTANI_ZORDER_TOP) {
if (yg->top_z) {
spin_lock(&yg->redraw_lock);
unorder_window(yg, yg->top_z);
spin_unlock(&yg->redraw_lock);
}
yg->top_z = window;
return;
}
if (new_zed == YUTANI_ZORDER_BOTTOM) {
if (yg->bottom_z) {
spin_lock(&yg->redraw_lock);
unorder_window(yg, yg->bottom_z);
spin_unlock(&yg->redraw_lock);
}
yg->bottom_z = window;
return;
}
}
/**
* Move a window to the top of the basic z stack, if valid.
*/
static void make_top(yutani_globals_t * yg, yutani_server_window_t * w) {
unsigned short index = w->z;
if (index == YUTANI_ZORDER_BOTTOM) return;
if (index == YUTANI_ZORDER_TOP) return;
node_t * n = list_find(yg->mid_zs, w);
if (!n) return; /* wat */
list_delete(yg->mid_zs, n);
list_append(yg->mid_zs, n);
}
/**
* Set a window as the focused window.
*
* Currently, we only support one focused window.
* In the future, we should support multiple windows as "focused" to account
* for multiple "seats" on a single display.
*/
static void set_focused_window(yutani_globals_t * yg, yutani_server_window_t * w) {
if (w == yg->focused_window) {
return; /* Already focused */
}
if (yg->focused_window) {
/* Send focus change to old focused window */
yutani_msg_buildx_window_focus_change_alloc(response);
yutani_msg_buildx_window_focus_change(response, yg->focused_window->wid, 0);
pex_send(yg->server, yg->focused_window->owner, response->size, (char *)response);
}
yg->focused_window = w;
if (w) {
/* Send focus change to new focused window */
yutani_msg_buildx_window_focus_change_alloc(response);
yutani_msg_buildx_window_focus_change(response, w->wid, 1);
pex_send(yg->server, w->owner, response->size, (char *)response);
make_top(yg, w);
mark_window(yg, w);
} else {
/*
* There is no window to focus (we're unsetting focus);
* default to the bottom window (background)
*/
yg->focused_window = yg->bottom_z;
}
/* Notify all subscribers of window changes */
notify_subscribers(yg);
}
/**
* Get the focused window.
*
* In case there is no focused window, we return the bottom window.
*/
static yutani_server_window_t * get_focused(yutani_globals_t * yg) {
if (yg->focused_window) return yg->focused_window;
return yg->bottom_z;
}
/**
* Create a server window object.
*
* Initializes a window of the particular size for a given client.
*/
static yutani_server_window_t * server_window_create(yutani_globals_t * yg, int width, int height, uint32_t owner, uint32_t flags) {
yutani_server_window_t * win = malloc(sizeof(yutani_server_window_t));
win->wid = next_wid();
win->owner = owner;
list_insert(yg->windows, win);
hashmap_set(yg->wids_to_windows, (void*)win->wid, win);
list_t * client_list = hashmap_get(yg->clients_to_windows, (void *)owner);
list_insert(client_list, win);
win->x = 0;
win->y = 0;
win->z = 1;
win->width = width;
win->height = height;
win->bufid = next_buf_id();
win->rotation = 0;
win->newbufid = 0;
win->client_flags = 0;
win->client_offsets[0] = 0;
win->client_offsets[1] = 0;
win->client_offsets[2] = 0;
win->client_offsets[3] = 0;
win->client_offsets[4] = 0;
win->client_length = 0;
win->client_strings = NULL;
win->anim_mode = YUTANI_EFFECT_FADE_IN;
win->anim_start = yutani_current_time(yg);
win->alpha_threshold = 0;
win->show_mouse = 1;
win->tiled = 0;
win->untiled_width = 0;
win->untiled_height = 0;
win->default_mouse = 1;
win->server_flags = flags;
win->opacity = 255;
char key[1024];
YUTANI_SHMKEY(yg->server_ident, key, 1024, win);
size_t size = (width * height * 4);
win->buffer = (uint8_t *)syscall_shm_obtain(key, &size);
memset(win->buffer, 0, size);
list_insert(yg->mid_zs, win);
return win;
}
/**
* Update the shape threshold for a window.
*
* A shaping threshold is a byte representing the minimum
* required alpha for a window to be considered "solid".
* Eg., a value of 0 says all windows are solid, while a value of
* 1 requires a window to have at least some opacity to it,
* and a value of 255 requires fully opaque pixels.
*
* Not actually stored as a byte, so a value over 255 can be used.
* This results in a window that passes through all clicks.
*/
static void server_window_update_shape(yutani_globals_t * yg, yutani_server_window_t * window, int set) {
window->alpha_threshold = set;
}
/**
* Start resizing a window.
*
* Resizing a multi-stage process.
* The client and server agree on a size and the server prepares a buffer.
* The client then needs to accept the resize, fill the buffer, and then
* inform the server that it is ready, at which point we'll swap the
* buffer we are rendering from.
*/
static uint32_t server_window_resize(yutani_globals_t * yg, yutani_server_window_t * win, int width, int height) {
/* A client has accepted our offer, let's make a buffer for them */
if (win->newbufid) {
/* Already in the middle of an accept/done, bail */
return win->newbufid;
}
win->newbufid = next_buf_id();
{
char key[1024];
YUTANI_SHMKEY_EXP(yg->server_ident, key, 1024, win->newbufid);
size_t size = (width * height * 4);
win->newbuffer = (uint8_t *)syscall_shm_obtain(key, &size);
}
return win->newbufid;
}
/**
* Finish the resize process.
*
* We delete the unlink the old buffer and then swap the pointers
* for the new buffer.
*/
static void server_window_resize_finish(yutani_globals_t * yg, yutani_server_window_t * win, int width, int height) {
if (!win->newbufid) {
return;
}
int oldbufid = win->bufid;
mark_window(yg, win);
spin_lock(&yg->redraw_lock);
win->width = width;
win->height = height;
win->bufid = win->newbufid;
win->buffer = win->newbuffer;
win->newbuffer = NULL;
win->newbufid = 0;
{
char key[1024];
YUTANI_SHMKEY_EXP(yg->server_ident, key, 1024, oldbufid);
syscall_shm_release(key);
}
spin_unlock(&yg->redraw_lock);
mark_window(yg, win);
}
/**
* Add a clip region from a rectangle.
*/
static void yutani_add_clip(yutani_globals_t * yg, double x, double y, double w, double h) {
if (renderer_add_clip) {
renderer_add_clip(yg,x,y,w,h);
} else {
gfx_add_clip(yg->backend_ctx, (int)x, (int)y, (int)w, (int)h);
}
}
/**
* Mark a screen region as damaged.
*/
static void mark_screen(yutani_globals_t * yg, int32_t x, int32_t y, int32_t width, int32_t height) {
yutani_damage_rect_t * rect = malloc(sizeof(yutani_damage_rect_t));
rect->x = x;
rect->y = y;
rect->width = width;
rect->height = height;
spin_lock(&yg->update_list_lock);
list_insert(yg->update_list, rect);
spin_unlock(&yg->update_list_lock);
}
/**
* Draw the cursor sprite.
*/
static void draw_cursor(yutani_globals_t * yg, int x, int y, int cursor) {
sprite_t * sprite = &yg->mouse_sprite;
static sprite_t * previous = NULL;
if (yg->resizing_window) {
switch (yg->resizing_direction) {
case SCALE_UP:
case SCALE_DOWN:
sprite = &yg->mouse_sprite_resize_v;
break;
case SCALE_LEFT:
case SCALE_RIGHT:
sprite = &yg->mouse_sprite_resize_h;
break;
case SCALE_DOWN_RIGHT:
case SCALE_UP_LEFT:
sprite = &yg->mouse_sprite_resize_da;
break;
case SCALE_DOWN_LEFT:
case SCALE_UP_RIGHT:
sprite = &yg->mouse_sprite_resize_db;
break;
default:
break;
}
} else if (yg->mouse_state == YUTANI_MOUSE_STATE_MOVING) {
sprite = &yg->mouse_sprite_drag;
} else {
switch (cursor) {
case YUTANI_CURSOR_TYPE_DRAG: sprite = &yg->mouse_sprite_drag; break;
case YUTANI_CURSOR_TYPE_RESIZE_VERTICAL: sprite = &yg->mouse_sprite_resize_v; break;
case YUTANI_CURSOR_TYPE_RESIZE_HORIZONTAL: sprite = &yg->mouse_sprite_resize_h; break;
case YUTANI_CURSOR_TYPE_RESIZE_UP_DOWN: sprite = &yg->mouse_sprite_resize_da; break;
case YUTANI_CURSOR_TYPE_RESIZE_DOWN_UP: sprite = &yg->mouse_sprite_resize_db; break;
}
}
if (sprite != previous) {
mark_screen(yg, x / MOUSE_SCALE - MOUSE_OFFSET_X, y / MOUSE_SCALE - MOUSE_OFFSET_Y, MOUSE_WIDTH, MOUSE_HEIGHT);
previous = sprite;
}
if (yg->vbox_pointer > 0) {
if (write(yg->vbox_pointer, sprite->bitmap, 48*48*4) > 0) {
/* if that was successful, we don't need to draw the cursor */
return;
}
}
draw_sprite(yg->backend_ctx, sprite, x / MOUSE_SCALE - MOUSE_OFFSET_X, y / MOUSE_SCALE - MOUSE_OFFSET_Y);
}
/**
* Determine if a window has a solid pixel at a given screen-space coordinate.
*
* This is where we evaluate alpha thresholds. We only do this underneath
* the cursor, and only when we move the cursor. It's reasonably fast
* in those circumstances, but shouldn't be used for large regions. We
* do have one debug method that indicates the top window in a box
* around the cursor, but it is relatively slow.
*/
static yutani_server_window_t * check_top_at(yutani_globals_t * yg, yutani_server_window_t * w, uint16_t x, uint16_t y){
if (!w) return NULL;
int32_t _x = -1, _y = -1;
yutani_device_to_window(w, x, y, &_x, &_y);
if (_x < 0 || _x >= w->width || _y < 0 || _y >= w->height) return NULL;
uint32_t c = ((uint32_t *)w->buffer)[(w->width * _y + _x)];
uint8_t a = _ALP(c);
if (a >= w->alpha_threshold) {
return w;
}
return NULL;
}
/**
* Find the window that is at the top at a particular screen-space coordinate.
*
* This walks through each window from top to bottom (foreachr - reverse foreach)
* until it finds one with a pixel at this coordinate. Again, we only call this
* at the cursor coordinates, and it is not particularly fast, so don't use it
* anywhere that needs to hit a lot of coordinates.
*/
static yutani_server_window_t * top_at(yutani_globals_t * yg, uint16_t x, uint16_t y) {
if (check_top_at(yg, yg->top_z, x, y)) return yg->top_z;
foreachr(node, yg->mid_zs) {
yutani_server_window_t * w = node->value;
if (check_top_at(yg, w, x, y)) return w;
}
if (check_top_at(yg, yg->bottom_z, x, y)) return yg->bottom_z;
return NULL;
}
/**
* Get the window at a coordinate and focus it.
*
* See the docs for the proceeding functions, but added to this
* focusing windows is also not particular fast as the reshuffle
* is complicated.
*/
static void set_focused_at(yutani_globals_t * yg, int x, int y) {
yutani_server_window_t * n_focused = top_at(yg, x, y);
set_focused_window(yg, n_focused);
}
/*
* Convenience functions for checking if a window is in the top/bottom stack.
*
* In the future, these single-item "stacks" will be replaced with dedicated stacks
* so we can have multiple background windows and multiple panels / always-top windows.
*/
int yutani_window_is_top(yutani_globals_t * yg, yutani_server_window_t * window) {
/* For now, just use simple z-order */
return window->z == YUTANI_ZORDER_TOP;
}
int yutani_window_is_bottom(yutani_globals_t * yg, yutani_server_window_t * window) {
/* For now, just use simple z-order */
return window->z == YUTANI_ZORDER_BOTTOM;
}
/**
* Get a color for a wid for debugging.
*
* Makes a pretty rainbow pattern.
*/
uint32_t yutani_color_for_wid(yutani_wid_t wid) {
static uint32_t colors[] = {
0xFF19aeff,
0xFFff4141,
0xFFffff3e,
0xFFff6600,
0xFF9ade00,
0xFFd76cff,
0xFF364e59,
0xFF0084c8,
0xFFdc0000,
0xFFff9900,
0xFF009100,
0xFFba00ff,
0xFFb88100,
0xFF9eabb0
};
int i = wid % (sizeof(colors) / sizeof(uint32_t));
return colors[i];
}
/**
* Blit a window to the framebuffer.
*
* Applies transformations (rotation, animations) and then renders
* the window through alpha blitting.
*/
static int yutani_blit_window(yutani_globals_t * yg, yutani_server_window_t * window, int x, int y) {
if (renderer_blit_window) {
return renderer_blit_window(yg,window,x,y);
}
sprite_t _win_sprite;
_win_sprite.width = window->width;
_win_sprite.height = window->height;
_win_sprite.bitmap = (uint32_t *)window->buffer;
_win_sprite.masks = NULL;
_win_sprite.blank = 0;
_win_sprite.alpha = ALPHA_EMBEDDED;
if (window->anim_mode) {
int frame = yutani_time_since(yg, window->anim_start);
if (frame >= yutani_animation_lengths[window->anim_mode]) {
/* XXX handle animation-end things like cleanup of closing windows */
if (window->anim_mode == YUTANI_EFFECT_FADE_OUT) {
list_insert(yg->windows_to_remove, window);
goto draw_finish;
}
window->anim_mode = 0;
window->anim_start = 0;
goto draw_window;
} else {
switch (window->anim_mode) {
case YUTANI_EFFECT_FADE_OUT:
{
frame = yutani_animation_lengths[window->anim_mode] - frame;
}
case YUTANI_EFFECT_FADE_IN:
{
double time_diff = ((double)frame / (float)yutani_animation_lengths[window->anim_mode]);
double x = 0.75 + time_diff * 0.25;
int t_x = (window->width * (1.0 - x)) / 2;
int t_y = (window->height * (1.0 - x)) / 2;
double opacity = time_diff * (double)(window->opacity) / 255.0;
if (!yutani_window_is_top(yg, window) && !yutani_window_is_bottom(yg, window) &&
!(window->server_flags & YUTANI_WINDOW_FLAG_ALT_ANIMATION)) {
draw_sprite_scaled_alpha(yg->backend_ctx, &_win_sprite, window->x + t_x, window->y + t_y, window->width * x, window->height * x, opacity);
} else {
draw_sprite_alpha(yg->backend_ctx, &_win_sprite, window->x, window->y, opacity);
}
}
break;
default:
goto draw_window;
break;
}
}
} else {
draw_window:
if (window->opacity != 255) {
double opacity = (double)(window->opacity) / 255.0;
if (window == yg->resizing_window) {
draw_sprite_scaled_alpha(yg->backend_ctx, &_win_sprite, window->x + (int)yg->resizing_offset_x, window->y + (int)yg->resizing_offset_y, yg->resizing_w, yg->resizing_h, opacity);
} else {
if (window->rotation) {
draw_sprite_rotate(yg->backend_ctx, &_win_sprite, window->x + window->width / 2, window->y + window->height / 2, (double)window->rotation * M_PI / 180.0, opacity);
} else {
draw_sprite_alpha(yg->backend_ctx, &_win_sprite, window->x, window->y, opacity);
}
}
} else {
if (window == yg->resizing_window) {
draw_sprite_scaled(yg->backend_ctx, &_win_sprite, window->x + (int)yg->resizing_offset_x, window->y + (int)yg->resizing_offset_y, yg->resizing_w, yg->resizing_h);
} else {
if (window->rotation) {
draw_sprite_rotate(yg->backend_ctx, &_win_sprite, window->x + window->width / 2, window->y + window->height / 2, (double)window->rotation * M_PI / 180.0, 1.0);
} else {
draw_sprite(yg->backend_ctx, &_win_sprite, window->x, window->y);
}
}
}
}
draw_finish:
return 0;
}
/**
* VirtualBox Seamless desktop driver.
*
* Sends rectangles describing all the non-background windows
* to the VirtualBox Guest Additions driver for use with the
* seamless desktop mode.
*/
static void yutani_post_vbox_rects(yutani_globals_t * yg) {
if (yg->vbox_rects <= 0) return;
char tmp[4096];
uint32_t * count = (uint32_t *)tmp;
*count = 0;
int32_t * magic = (int32_t *)tmp;
magic++;
/* Add top window if it exists */
if (yg->top_z) {
*magic = yg->top_z->x; magic++;
*magic = yg->top_z->y; magic++;
*magic = yg->top_z->x + yg->top_z->width; magic++;
*magic = yg->top_z->y + yg->top_z->height; magic++;
(*count)++;
}
/* Add regular windows */
foreach (node, yg->mid_zs) {
yutani_server_window_t * w = node->value;
if (w) {
*magic = w->x; magic++;
*magic = w->y; magic++;
*magic = w->x + w->width; magic++;
*magic = w->y + w->height; magic++;
(*count)++;
if (*count == 254) break;
}
}
/*
* If there were no windows, show the whole desktop
* so we can see, eg., the login screen.
*/
if (*count == 0) {
*count = 1;
*magic = 0; magic++;
*magic = 0; magic++;
*magic = yg->width; magic++;
*magic = yg->height; magic++;
}
/* Post rectangle data to driver */
write(yg->vbox_rects, tmp, sizeof(tmp));
}
/**
* Blit all windows into the given context.
*
* This is called for rendering and for screenshots.
*/
static void yutani_blit_windows(yutani_globals_t * yg) {
if (yg->bottom_z) yutani_blit_window(yg, yg->bottom_z, yg->bottom_z->x, yg->bottom_z->y);
foreach (node, yg->mid_zs) {
yutani_server_window_t * w = node->value;
if (w) yutani_blit_window(yg, w, w->x, w->y);
}
if (yg->top_z) yutani_blit_window(yg, yg->top_z, yg->top_z->x, yg->top_z->y);
}
/**
* Take a screenshot
*/
static void yutani_screenshot(yutani_globals_t * yg) {
int task = yg->screenshot_frame;
yg->screenshot_frame = 0;
/* raw screenshots */
FILE * f = fopen("/tmp/screenshot.rgba", "w");
if (!f) {
TRACE("Error opening output file for screenshot.");
return;
}
uint32_t * buffer = NULL;
int width, height;
if (task == YUTANI_SCREENSHOT_FULL) {
buffer = (void *)yg->backend_ctx->backbuffer;
width = yg->width;
height = yg->height;
} else if (task == YUTANI_SCREENSHOT_WINDOW) {
yutani_server_window_t * window = yg->focused_window;
buffer = (void *)window->buffer;
width = window->width;
height = window->height;
}
if (buffer) {
for (int y = 0; y <height; ++y) {
for (int x = 0; x < width; ++x) {
uint8_t buf[4] = {
_RED(buffer[y * width + x]),
_GRE(buffer[y * width + x]),
_BLU(buffer[y * width + x]),
_ALP(buffer[y * width + x]),
};
fwrite(buf, 1, 4, f);
}
}
}
fclose(f);
}
/**
* Redraw all windows, as well as the mouse cursor.
*
* This is the main redraw function.
*/
static void redraw_windows(yutani_globals_t * yg) {
int has_updates = 0;
/* We keep our own temporary mouse coordinates as they may change while we're drawing. */
int tmp_mouse_x = yg->mouse_x;
int tmp_mouse_y = yg->mouse_y;
if (yg->resize_on_next) {
spin_lock(&yg->redraw_lock);
TRACE("Resizing display.");
if (!yutani_options.nested) {
reinit_graphics_fullscreen(yg->backend_ctx);
} else {
reinit_graphics_yutani(yg->backend_ctx, yg->host_window);
yutani_window_resize_done(yg->host_context, yg->host_window);
}
TRACE("graphics context resized...");
yg->width = yg->backend_ctx->width;
yg->height = yg->backend_ctx->height;
yg->backend_framebuffer = yg->backend_ctx->backbuffer;
if (renderer_destroy) renderer_destroy(yg);
if (renderer_init) renderer_init(yg);
TRACE("Marking...");
yg->resize_on_next = 0;
mark_screen(yg, 0, 0, yg->width, yg->height);
TRACE("Sending welcome messages...");
yutani_msg_buildx_welcome_alloc(response);
yutani_msg_buildx_welcome(response, yg->width, yg->height);
pex_broadcast(yg->server, response->size, (char *)response);
TRACE("Done.");
spin_unlock(&yg->redraw_lock);
}
if (renderer_push_state) renderer_push_state(yg);
/* If the mouse has moved, that counts as two damage regions */
if ((yg->last_mouse_x != tmp_mouse_x) || (yg->last_mouse_y != tmp_mouse_y)) {
has_updates = 2;
yutani_add_clip(yg, yg->last_mouse_x / MOUSE_SCALE - MOUSE_OFFSET_X, yg->last_mouse_y / MOUSE_SCALE - MOUSE_OFFSET_Y, MOUSE_WIDTH, MOUSE_HEIGHT);
yutani_add_clip(yg, tmp_mouse_x / MOUSE_SCALE - MOUSE_OFFSET_X, tmp_mouse_y / MOUSE_SCALE - MOUSE_OFFSET_Y, MOUSE_WIDTH, MOUSE_HEIGHT);
}
yg->last_mouse_x = tmp_mouse_x;
yg->last_mouse_y = tmp_mouse_y;
if (yg->bottom_z && yg->bottom_z->anim_mode) mark_window(yg, yg->bottom_z);
if (yg->top_z && yg->top_z->anim_mode) mark_window(yg, yg->top_z);
foreach (node, yg->mid_zs) {
yutani_server_window_t * w = node->value;
if (w && w->anim_mode) mark_window(yg, w);
}
/* Calculate damage regions from currently queued updates */
spin_lock(&yg->update_list_lock);
while (yg->update_list->length) {
node_t * win = list_dequeue(yg->update_list);
yutani_damage_rect_t * rect = (void *)win->value;
/* We add a clip region for each window in the update queue */
has_updates = 1;
yutani_add_clip(yg, rect->x, rect->y, rect->width, rect->height);
free(rect);
free(win);
}
spin_unlock(&yg->update_list_lock);
/* Render */
if (has_updates) {
if (!yg->bottom_z || yg->bottom_z->anim_mode) {
draw_fill(yg->backend_ctx, rgb(110,110,110));
}
if (renderer_set_clip) renderer_set_clip(yg);
yg->windows_to_remove = list_create();
/*
* In theory, we should restrict this to windows within the clip region,
* but calculating that may be more trouble than it's worth;
* we also need to render windows in stacking order...
*/
spin_lock(&yg->redraw_lock);
yutani_blit_windows(yg);
/* Send VirtualBox rects */
yutani_post_vbox_rects(yg);
#if YUTANI_DEBUG_WINDOW_SHAPES
#define WINDOW_SHAPE_VIEWER_SIZE 20
/*
* Debugging window shapes: draw a box around the mouse cursor
* showing which window is at the top and will accept mouse events.
*/
if (yg->debug_shapes) {
int _ly = max(0,tmp_mouse_y/MOUSE_SCALE - WINDOW_SHAPE_VIEWER_SIZE);
int _hy = min(yg->height,tmp_mouse_y/MOUSE_SCALE + WINDOW_SHAPE_VIEWER_SIZE);
int _lx = max(0,tmp_mouse_x/MOUSE_SCALE - 20);
int _hx = min(yg->width,tmp_mouse_x/MOUSE_SCALE + WINDOW_SHAPE_VIEWER_SIZE);
for (int y = _ly; y < _hy; ++y) {
for (int x = _lx; x < _hx; ++x) {
yutani_server_window_t * w = top_at(yg, x, y);
if (w) { GFX(yg->backend_ctx, x, y) = yutani_color_for_wid(w->wid); }
}
}
}
#endif
if (yutani_options.nested) {
if (renderer_blit_screen) {
renderer_blit_screen(yg);
} else {
flip(yg->backend_ctx);
}
/*
* We should be able to flip only the places we need to flip, but
* instead we're going to flip the whole thing.
*
* TODO: Do a better job of this.
*/
yutani_flip(yg->host_context, yg->host_window);
yutani_server_window_t * tmp_window = top_at(yg, yg->mouse_x / MOUSE_SCALE, yg->mouse_y / MOUSE_SCALE);
if (yg->mouse_state == YUTANI_MOUSE_STATE_MOVING) {
yutani_window_show_mouse(yg->host_context, yg->host_window, YUTANI_CURSOR_TYPE_DRAG);
} else if (!tmp_window || tmp_window->show_mouse) {
yutani_window_show_mouse(yg->host_context, yg->host_window, tmp_window ? tmp_window->show_mouse : 1);
}
} else {
/*
* Draw the cursor.
* We may also want to draw other compositor elements, like effects, but those
* can also go in the stack order of the windows.
*/
yutani_server_window_t * tmp_window = top_at(yg, yg->mouse_x / MOUSE_SCALE, yg->mouse_y / MOUSE_SCALE);
if (!tmp_window || tmp_window->show_mouse) {
draw_cursor(yg, tmp_mouse_x, tmp_mouse_y, tmp_window ? tmp_window->show_mouse : 1);
}
/*
* Flip the updated areas. This minimizes writes to video memory,
* which is very important on real hardware where these writes are slow.
*/
if (renderer_blit_screen) {
renderer_blit_screen(yg);
} else {
flip(yg->backend_ctx);
}
}
if (!renderer_add_clip) gfx_clear_clip(yg->backend_ctx);
spin_unlock(&yg->redraw_lock);
/*
* If any windows were marked for removal,
* then remove them.
*/
while (yg->windows_to_remove->tail) {
node_t * node = list_pop(yg->windows_to_remove);
window_actually_close(yg, node->value);
free(node);
}
free(yg->windows_to_remove);
}
if (renderer_pop_state) renderer_pop_state(yg);
if (yg->screenshot_frame) {
yutani_screenshot(yg);
}
if (yg->reload_renderer) {
yg->reload_renderer = 0;
/* Otherwise we won't draw the cursor... */
gfx_no_clip(yg->backend_ctx);
try_load_extensions(yg);
}
}
/**
* Initialize clipping regions.
*/
void yutani_clip_init(yutani_globals_t * yg) {
yg->update_list = list_create();
yg->update_list_lock = 0;
}
/**
* Redraw thread.
*
* Calls the redraw functions in a loop, with some
* additional yielding and sleeping.
*/
static void * redraw(void * in) {
syscall_system_function(11,(char *[]){"compositor","render thread",NULL});
yutani_globals_t * yg = in;
while (yg->server) {
/*
* Perform whatever redraw work is required.
*/
redraw_windows(yg);
/*
* Attempt to run at about 60fps...
* we should actually see how long it took to render so
* we can sleep *less* if it took a long time to render
* this particular frame. We are definitely not
* going to run at 60fps unless there's nothing to do
* (and even then we've wasted cycles checking).
*/
usleep(16666);
}
return NULL;
}
/**
* Mark a region within a window as damaged.
*
* If the window is rotated, we calculate the minimum rectangle that covers
* the whole region specified and then mark that.
*/
static void mark_window_relative(yutani_globals_t * yg, yutani_server_window_t * window, int32_t x, int32_t y, int32_t width, int32_t height) {
yutani_damage_rect_t * rect = malloc(sizeof(yutani_damage_rect_t));
if (window == yg->resizing_window) {
double x_scale = (double)yg->resizing_w / (double)yg->resizing_window->width;
double y_scale = (double)yg->resizing_h / (double)yg->resizing_window->height;
x *= x_scale;
x += yg->resizing_offset_x - 1;
y *= y_scale;
y += yg->resizing_offset_y - 1;
width *= x_scale;
height *= y_scale;
width += 2;
height += 2;
}
if (window->rotation == 0) {
rect->x = window->x + x;
rect->y = window->y + y;
rect->width = width;
rect->height = height;
} else {
int32_t ul_x, ul_y;
int32_t ll_x, ll_y;
int32_t ur_x, ur_y;
int32_t lr_x, lr_y;
yutani_window_to_device(window, x, y, &ul_x, &ul_y);
yutani_window_to_device(window, x, y + height, &ll_x, &ll_y);
yutani_window_to_device(window, x + width, y, &ur_x, &ur_y);
yutani_window_to_device(window, x + width, y + height, &lr_x, &lr_y);
/* Calculate bounds */
int32_t left_bound = min(min(ul_x, ll_x), min(ur_x, lr_x));
int32_t top_bound = min(min(ul_y, ll_y), min(ur_y, lr_y));
int32_t right_bound = max(max(ul_x, ll_x), max(ur_x, lr_x));
int32_t bottom_bound = max(max(ul_y, ll_y), max(ur_y, lr_y));
rect->x = left_bound;
rect->y = top_bound;
rect->width = right_bound - left_bound;
rect->height = bottom_bound - top_bound;
}
spin_lock(&yg->update_list_lock);
list_insert(yg->update_list, rect);
spin_unlock(&yg->update_list_lock);
}
/**
* (Convenience function) Mark a whole a window as damaged.
*/
static void mark_window(yutani_globals_t * yg, yutani_server_window_t * window) {
mark_window_relative(yg, window, 0, 0, window->width, window->height);
}
/**
* Set a window as closed. It will be removed after rendering has completed.
*/
static void window_mark_for_close(yutani_globals_t * yg, yutani_server_window_t * w) {
w->anim_mode = YUTANI_EFFECT_FADE_OUT;
w->anim_start = yutani_current_time(yg);
}
/**
* Remove a window from its owner's child set.
*/
static void window_remove_from_client(yutani_globals_t * yg, yutani_server_window_t * w) {
list_t * client_list = hashmap_get(yg->clients_to_windows, (void *)w->owner);
if (client_list) {
node_t * n = list_find(client_list, w);
if (n) {
list_delete(client_list, n);
free(n);
}
}
}
/**
* Actually remove a window and free the associated resources.
*/
static void window_actually_close(yutani_globals_t * yg, yutani_server_window_t * w) {
/* Remove from the wid -> window mapping */
hashmap_remove(yg->wids_to_windows, (void *)w->wid);
/* Remove from the general list of windows. */
list_remove(yg->windows, list_index_of(yg->windows, w));
/* Unstack the window */
unorder_window(yg, w);
/* Mark the region where the window was */
mark_window(yg, w);
/* And if it was focused, unfocus it. */
if (w == yg->focused_window) {
/* find the top z-ordered window */
yg->focused_window = NULL;
if (yg->mid_zs->tail && yg->mid_zs->tail->value) {
set_focused_window(yg, yg->mid_zs->tail->value);
}
}
{
char key[1024];
YUTANI_SHMKEY_EXP(yg->server_ident, key, 1024, w->bufid);
/*
* Normally we would acquire a lock before doing this, but the render
* thread holds that lock already and we are only called from the
* render thread, so we don't bother.
*/
syscall_shm_release(key);
}
/* Notify subscribers that there are changes to windows */
notify_subscribers(yg);
}
/**
* Generate flags for client advertisements.
*
* Currently, we only have one flag (focused).
*/
static uint32_t ad_flags(yutani_globals_t * yg, yutani_server_window_t * win) {
uint32_t flags = win->client_flags;
if (win == yg->focused_window) {
flags |= 1;
}
return flags;
}
/**
* Send a result for a window query.
*/
static void yutani_query_result(yutani_globals_t * yg, uint32_t dest, yutani_server_window_t * win) {
if (win && win->client_length) {
yutani_msg_buildx_window_advertise_alloc(response, win->client_length);
yutani_msg_buildx_window_advertise(response, win->wid, ad_flags(yg, win), win->client_offsets, win->client_length, win->client_strings);
pex_send(yg->server, dest, response->size, (char *)response);
}
}
/**
* Send a notice to all subscribed clients that windows have updated.
*/
static void notify_subscribers(yutani_globals_t * yg) {
yutani_msg_buildx_notify_alloc(response);
yutani_msg_buildx_notify(response);
list_t * remove = NULL;
foreach(node, yg->window_subscribers) {
uint32_t subscriber = (uint32_t)node->value;
if (!hashmap_has(yg->clients_to_windows, (void *)subscriber)) {
if (!remove) {
remove = list_create();
}
list_insert(remove, node);
} else {
pex_send(yg->server, subscriber, response->size, (char *)response);
}
}
if (remove) {
while (remove->length) {
node_t * n = list_pop(remove);
list_delete(yg->window_subscribers, n->value);
free(n);
}
free(remove);
}
}
static void window_move(yutani_globals_t * yg, yutani_server_window_t * window, int x, int y) {
mark_window(yg, window);
window->x = x;
window->y = y;
mark_window(yg, window);
yutani_msg_buildx_window_move_alloc(response);
yutani_msg_buildx_window_move(response, window->wid, x, y);
pex_send(yg->server, window->owner, response->size, (char *)response);
}
/**
* Move and resize a window to fit a particular tiling pattern.
*
* x and y are 0-based
* width_div and height_div are the number of cells in each dimension
*/
static void window_tile(yutani_globals_t * yg, yutani_server_window_t * window, int width_div, int height_div, int x, int y) {
int panel_h = 0;
yutani_server_window_t * panel = yg->top_z;
if (panel) {
panel_h = panel->height;
if (panel->y < 1) {
panel_h += panel->y; /* We can move the panel up to "hide" it. */
}
}
if (!window->tiled) {
window->untiled_width = window->width;
window->untiled_height = window->height;
window->untiled_left = window->x;
window->untiled_top = window->y;
window->tiled = 1;
}
int w = yg->width / width_div;
int h = (yg->height - panel_h) / height_div;
/* Calculate, move, etc. */
window_move(yg, window, w * x, panel_h + h * y);
if (x == width_div - 1) {
w = yg->width - w * x;
}
if (y == height_div - 1) {
h = (yg->height - panel_h) - h * y;
}
yutani_msg_buildx_window_resize_alloc(response);
yutani_msg_buildx_window_resize(response, YUTANI_MSG_RESIZE_OFFER, window->wid, w, h, 0, YUTANI_RESIZE_TILED);
pex_send(yg->server, window->owner, response->size, (char *)response);
}
/**
* Take a previously tiled window and "untile" it, eg. restore its original size.
*/
static void window_untile(yutani_globals_t * yg, yutani_server_window_t * window) {
window->tiled = 0;
yutani_msg_buildx_window_resize_alloc(response);
yutani_msg_buildx_window_resize(response,YUTANI_MSG_RESIZE_OFFER, window->wid, window->untiled_width, window->untiled_height, 0, 0);
pex_send(yg->server, window->owner, response->size, (char *)response);
}
/**
* Process a key event.
*
* These are mostly compositor shortcuts and bindings.
* We also process key bindings for other applications.
*/
static void handle_key_event(yutani_globals_t * yg, struct yutani_msg_key_event * ke) {
yutani_server_window_t * focused = get_focused(yg);
memcpy(&yg->kbd_state, &ke->state, sizeof(key_event_state_t));
if (focused) {
#if 1
if ((ke->event.action == KEY_ACTION_DOWN) &&
(ke->event.modifiers & KEY_MOD_LEFT_SUPER) &&
(ke->event.modifiers & KEY_MOD_LEFT_SHIFT) &&
(ke->event.keycode == 'z')) {
mark_window(yg,focused);
focused->rotation -= 5;
mark_window(yg,focused);
return;
}
if ((ke->event.action == KEY_ACTION_DOWN) &&
(ke->event.modifiers & KEY_MOD_LEFT_SUPER) &&
(ke->event.modifiers & KEY_MOD_LEFT_SHIFT) &&
(ke->event.keycode == 'x')) {
mark_window(yg,focused);
focused->rotation += 5;
mark_window(yg,focused);
return;
}
if ((ke->event.action == KEY_ACTION_DOWN) &&
(ke->event.modifiers & KEY_MOD_LEFT_SUPER) &&
(ke->event.modifiers & KEY_MOD_LEFT_SHIFT) &&
(ke->event.keycode == 'c')) {
mark_window(yg,focused);
focused->rotation = 0;
mark_window(yg,focused);
return;
}
#endif
if ((ke->event.action == KEY_ACTION_DOWN) &&
(ke->event.modifiers & KEY_MOD_LEFT_ALT) &&
(ke->event.keycode == KEY_F10)) {
if (focused->z != YUTANI_ZORDER_BOTTOM && focused->z != YUTANI_ZORDER_TOP) {
if (focused->tiled) {
window_untile(yg, focused);
window_move(yg, focused, focused->untiled_left, focused->untiled_top);
} else {
window_tile(yg, focused, 1, 1, 0, 0);
}
return;
}
}
if ((ke->event.action == KEY_ACTION_DOWN) &&
(ke->event.modifiers & KEY_MOD_LEFT_ALT) &&
(ke->event.keycode == KEY_F4)) {
if (focused->z != YUTANI_ZORDER_BOTTOM && focused->z != YUTANI_ZORDER_TOP) {
yutani_msg_buildx_window_close_alloc(response);
yutani_msg_buildx_window_close(response, focused->wid);
pex_send(yg->server, focused->owner, response->size, (char *)response);
return;
}
}
#if YUTANI_DEBUG_WINDOW_SHAPES
if ((ke->event.action == KEY_ACTION_DOWN) &&
(ke->event.modifiers & KEY_MOD_LEFT_SUPER) &&
(ke->event.modifiers & KEY_MOD_LEFT_SHIFT) &&
(ke->event.keycode == 'n')) {
yg->debug_shapes = (1-yg->debug_shapes);
return;
}
#endif
#if YUTANI_DEBUG_WINDOW_BOUNDS
if ((ke->event.action == KEY_ACTION_DOWN) &&
(ke->event.modifiers & KEY_MOD_LEFT_SUPER) &&
(ke->event.modifiers & KEY_MOD_LEFT_SHIFT) &&
(ke->event.keycode == 'b')) {
yg->debug_bounds = (1-yg->debug_bounds);
return;
}
#endif
/*
* Tiling hooks.
* These are based on the compiz grid plugin.
*/
if ((ke->event.action == KEY_ACTION_DOWN) &&
(ke->event.modifiers & KEY_MOD_LEFT_SUPER)) {
if ((ke->event.modifiers & KEY_MOD_LEFT_SHIFT) &&
(ke->event.keycode == KEY_ARROW_LEFT)) {
if (focused->z != YUTANI_ZORDER_BOTTOM && focused->z != YUTANI_ZORDER_TOP) {
window_tile(yg, focused, 2, 2, 0, 0);
return;
}
}
if ((ke->event.modifiers & KEY_MOD_LEFT_SHIFT) &&
(ke->event.keycode == KEY_ARROW_RIGHT)) {
if (focused->z != YUTANI_ZORDER_BOTTOM && focused->z != YUTANI_ZORDER_TOP) {
window_tile(yg, focused, 2, 2, 1, 0);
return;
}
}
if ((ke->event.modifiers & KEY_MOD_LEFT_CTRL) &&
(ke->event.keycode == KEY_ARROW_LEFT)) {
if (focused->z != YUTANI_ZORDER_BOTTOM && focused->z != YUTANI_ZORDER_TOP) {
window_tile(yg, focused, 2, 2, 0, 1);
return;
}
}
if ((ke->event.modifiers & KEY_MOD_LEFT_CTRL) &&
(ke->event.keycode == KEY_ARROW_RIGHT)) {
if (focused->z != YUTANI_ZORDER_BOTTOM && focused->z != YUTANI_ZORDER_TOP) {
window_tile(yg, focused, 2, 2, 1, 1);
return;
}
}
if ((ke->event.keycode == KEY_ARROW_LEFT)) {
if (focused->z != YUTANI_ZORDER_BOTTOM && focused->z != YUTANI_ZORDER_TOP) {
window_tile(yg, focused, 2, 1, 0, 0);
return;
}
}
if ((ke->event.keycode == KEY_ARROW_RIGHT)) {
if (focused->z != YUTANI_ZORDER_BOTTOM && focused->z != YUTANI_ZORDER_TOP) {
window_tile(yg, focused, 2, 1, 1, 0);
return;
}
}
if ((ke->event.keycode == KEY_ARROW_UP)) {
if (focused->z != YUTANI_ZORDER_BOTTOM && focused->z != YUTANI_ZORDER_TOP) {
window_tile(yg, focused, 1, 2, 0, 0);
return;
}
}
if ((ke->event.keycode == KEY_ARROW_DOWN)) {
if (focused->z != YUTANI_ZORDER_BOTTOM && focused->z != YUTANI_ZORDER_TOP) {
window_tile(yg, focused, 1, 2, 0, 1);
return;
}
}
if ((ke->event.modifiers & KEY_MOD_LEFT_CTRL) &&
(ke->event.keycode == 's')) {
yg->screenshot_frame = YUTANI_SCREENSHOT_FULL;
return;
}
if ((ke->event.modifiers & KEY_MOD_LEFT_CTRL) &&
(ke->event.keycode == 'w')) {
yg->screenshot_frame = YUTANI_SCREENSHOT_WINDOW;
return;
}
}
}
/*
* External bindings registered by clients.
*/
uint32_t key_code = ((ke->event.modifiers << 24) | (ke->event.keycode));
if (hashmap_has(yg->key_binds, (void*)key_code)) {
struct key_bind * bind = hashmap_get(yg->key_binds, (void*)key_code);
yutani_msg_buildx_key_event_alloc(response);
yutani_msg_buildx_key_event(response,focused ? focused->wid : UINT32_MAX, &ke->event, &ke->state);
pex_send(yg->server, bind->owner, response->size, (char *)response);
if (bind->response == YUTANI_BIND_STEAL) {
/* If this keybinding was registered as "steal", we'll stop here. */
return;
}
}
/* Finally, send the key to the focused client. */
if (focused) {
yutani_msg_buildx_key_event_alloc(response);
yutani_msg_buildx_key_event(response,focused->wid, &ke->event, &ke->state);
pex_send(yg->server, focused->owner, response->size, (char *)response);
}
}
/**
* Register a new keybinding.
*
* req - bind message
* owner - client to assign the binding to
*/
static void add_key_bind(yutani_globals_t * yg, struct yutani_msg_key_bind * req, unsigned int owner) {
uint32_t key_code = (((uint8_t)req->modifiers << 24) | ((uint32_t)req->key & 0xFFFFFF));
struct key_bind * bind = hashmap_get(yg->key_binds, (void*)key_code);
if (!bind) {
bind = malloc(sizeof(struct key_bind));
bind->owner = owner;
bind->response = req->response;
hashmap_set(yg->key_binds, (void*)key_code, bind);
} else {
bind->owner = owner;
bind->response = req->response;
}
}
static void adjust_window_opacity(yutani_globals_t * yg, int direction) {
yutani_server_window_t * window = top_at(yg, yg->mouse_x / MOUSE_SCALE, yg->mouse_y / MOUSE_SCALE);
if (window && window->z != YUTANI_ZORDER_BOTTOM) {
window->opacity += direction;
if (window->opacity < 0) {
window->opacity = 0;
}
if (window->opacity > 255) {
window->opacity = 255;
}
mark_window(yg, window);
}
}
static void mouse_start_drag(yutani_globals_t * yg, yutani_server_window_t * w) {
set_focused_at(yg, yg->mouse_x / MOUSE_SCALE, yg->mouse_y / MOUSE_SCALE);
if (!w) {
yg->mouse_window = get_focused(yg);
} else {
yg->mouse_window = w;
}
if (yg->mouse_window) {
if (yg->mouse_window->z == YUTANI_ZORDER_BOTTOM || yg->mouse_window->z == YUTANI_ZORDER_TOP
|| yg->mouse_window->server_flags & YUTANI_WINDOW_FLAG_DISALLOW_DRAG) {
yg->mouse_state = YUTANI_MOUSE_STATE_NORMAL;
yg->mouse_window = NULL;
} else {
yg->mouse_state = YUTANI_MOUSE_STATE_MOVING;
yg->mouse_init_x = yg->mouse_x;
yg->mouse_init_y = yg->mouse_y;
yg->mouse_win_x = yg->mouse_window->x;
yg->mouse_win_y = yg->mouse_window->y;
yg->mouse_drag_button = yg->last_mouse_buttons;
mark_screen(yg, yg->mouse_x / MOUSE_SCALE - MOUSE_OFFSET_X, yg->mouse_y / MOUSE_SCALE - MOUSE_OFFSET_Y, MOUSE_WIDTH, MOUSE_HEIGHT);
make_top(yg, yg->mouse_window);
}
}
}
static void mouse_start_rotate(yutani_globals_t * yg) {
set_focused_at(yg, yg->mouse_x / MOUSE_SCALE, yg->mouse_y / MOUSE_SCALE);
yg->mouse_window = get_focused(yg);
if (yg->mouse_window) {
if (yg->mouse_window->z == YUTANI_ZORDER_BOTTOM || yg->mouse_window->z == YUTANI_ZORDER_TOP) {
/* Prevent rotating panel and wallpaper */
yg->mouse_state = YUTANI_MOUSE_STATE_NORMAL;
yg->mouse_window = NULL;
return;
}
yg->mouse_state = YUTANI_MOUSE_STATE_ROTATING;
yg->mouse_init_x = yg->mouse_x;
yg->mouse_init_y = yg->mouse_y;
int32_t x_diff = yg->mouse_x / MOUSE_SCALE - (yg->mouse_window->x + yg->mouse_window->width / 2);
int32_t y_diff = yg->mouse_y / MOUSE_SCALE - (yg->mouse_window->y + yg->mouse_window->height / 2);
int new_r = __builtin_atan2(x_diff, y_diff) * 180.0 / (-M_PI);
yg->mouse_init_r = yg->mouse_window->rotation - new_r;
make_top(yg, yg->mouse_window);
}
}
static void mouse_start_resize(yutani_globals_t * yg, yutani_scale_direction_t direction) {
set_focused_at(yg, yg->mouse_x / MOUSE_SCALE, yg->mouse_y / MOUSE_SCALE);
yg->mouse_window = get_focused(yg);
if (yg->mouse_window) {
if (yg->mouse_window->z == YUTANI_ZORDER_BOTTOM || yg->mouse_window->z == YUTANI_ZORDER_TOP
|| yg->mouse_window->server_flags & YUTANI_WINDOW_FLAG_DISALLOW_RESIZE) {
/* Prevent resizing panel and wallpaper */
yg->mouse_state = YUTANI_MOUSE_STATE_NORMAL;
yg->mouse_window = NULL;
yg->resizing_window = NULL;
} else {
TRACE("resize starting for wid=%d", yg->mouse_window -> wid);
yg->mouse_state = YUTANI_MOUSE_STATE_RESIZING;
yg->mouse_init_x = yg->mouse_x;
yg->mouse_init_y = yg->mouse_y;
yg->mouse_win_x = yg->mouse_window->x;
yg->mouse_win_y = yg->mouse_window->y;
yg->resizing_window = yg->mouse_window;
yg->resizing_w = yg->mouse_window->width;
yg->resizing_h = yg->mouse_window->height;
yg->resizing_offset_x = 0;
yg->resizing_offset_y = 0;
if (direction == SCALE_AUTO) {
/* Determine the best direction to scale in based on simple 9-cell system. */
int32_t x, y;
yutani_device_to_window(yg->resizing_window, yg->mouse_x / MOUSE_SCALE, yg->mouse_y / MOUSE_SCALE, &x, &y);
int h_d = 0;
int v_d = 0;
if (y <= yg->resizing_h / 3) {
v_d = -1;
} else if (y >= (yg->resizing_h / 3) * 2) {
v_d = 1;
}
if (x <= yg->resizing_w / 3) {
h_d = -1;
} else if (x >= (yg->resizing_w / 3) * 2) {
h_d = 1;
}
/* Fall back */
if (h_d == 0 && v_d == 0) direction = SCALE_DOWN_RIGHT;
else if (h_d == 1 && v_d == 1) direction = SCALE_DOWN_RIGHT;
else if (h_d == 1 && v_d == -1) direction = SCALE_UP_RIGHT;
else if (h_d == -1 && v_d == 1) direction = SCALE_DOWN_LEFT;
else if (h_d == -1 && v_d == -1) direction = SCALE_UP_LEFT;
else if (h_d == 1 && v_d == 0) direction = SCALE_RIGHT;
else if (h_d == -1 && v_d == 0) direction = SCALE_LEFT;
else if (h_d == 0 && v_d == 1) direction = SCALE_DOWN;
else if (h_d == 0 && v_d == -1) direction = SCALE_UP;
}
yg->resizing_direction = direction;
make_top(yg, yg->mouse_window);
mark_window(yg, yg->resizing_window);
}
}
}
static void handle_mouse_event(yutani_globals_t * yg, struct yutani_msg_mouse_event * me) {
if (me->type == YUTANI_MOUSE_EVENT_TYPE_RELATIVE) {
yg->mouse_x += me->event.x_difference YUTANI_INCOMING_MOUSE_SCALE;
yg->mouse_y -= me->event.y_difference YUTANI_INCOMING_MOUSE_SCALE;
} else if (me->type == YUTANI_MOUSE_EVENT_TYPE_ABSOLUTE) {
yg->mouse_x = me->event.x_difference * MOUSE_SCALE;
yg->mouse_y = me->event.y_difference * MOUSE_SCALE;
}
if (yg->mouse_x < 0) yg->mouse_x = 0;
if (yg->mouse_y < 0) yg->mouse_y = 0;
if (yg->mouse_x > (int)(yg->width) * MOUSE_SCALE) yg->mouse_x = (yg->width) * MOUSE_SCALE;
if (yg->mouse_y > (int)(yg->height) * MOUSE_SCALE) yg->mouse_y = (yg->height) * MOUSE_SCALE;
switch (yg->mouse_state) {
case YUTANI_MOUSE_STATE_NORMAL:
{
if ((me->event.buttons & YUTANI_MOUSE_BUTTON_LEFT) && (yg->kbd_state.k_alt)) {
mouse_start_drag(yg, NULL);
} else if ((me->event.buttons & YUTANI_MOUSE_SCROLL_UP) && (yg->kbd_state.k_alt)) {
adjust_window_opacity(yg, 8);
} else if ((me->event.buttons & YUTANI_MOUSE_SCROLL_DOWN) && (yg->kbd_state.k_alt)) {
adjust_window_opacity(yg, -8);
} else if ((me->event.buttons & YUTANI_MOUSE_BUTTON_RIGHT) && (yg->kbd_state.k_alt)) {
mouse_start_rotate(yg);
} else if ((me->event.buttons & YUTANI_MOUSE_BUTTON_MIDDLE) && (yg->kbd_state.k_alt)) {
yg->resizing_button = YUTANI_MOUSE_BUTTON_MIDDLE;
mouse_start_resize(yg, SCALE_AUTO);
} else if ((me->event.buttons & YUTANI_MOUSE_BUTTON_LEFT) && (!yg->kbd_state.k_alt)) {
yg->mouse_state = YUTANI_MOUSE_STATE_DRAGGING;
set_focused_at(yg, yg->mouse_x / MOUSE_SCALE, yg->mouse_y / MOUSE_SCALE);
yg->mouse_window = get_focused(yg);
yg->mouse_moved = 0;
yg->mouse_drag_button = YUTANI_MOUSE_BUTTON_LEFT;
if (yg->mouse_window) {
yutani_device_to_window(yg->mouse_window, yg->mouse_x / MOUSE_SCALE, yg->mouse_y / MOUSE_SCALE, &yg->mouse_click_x, &yg->mouse_click_y);
yutani_msg_buildx_window_mouse_event_alloc(response);
yutani_msg_buildx_window_mouse_event(response,yg->mouse_window->wid, yg->mouse_click_x, yg->mouse_click_y, -1, -1, me->event.buttons, YUTANI_MOUSE_EVENT_DOWN);
yg->mouse_click_x_orig = yg->mouse_click_x;
yg->mouse_click_y_orig = yg->mouse_click_y;
pex_send(yg->server, yg->mouse_window->owner, response->size, (char *)response);
}
} else {
yg->mouse_window = get_focused(yg);
yutani_server_window_t * tmp_window = top_at(yg, yg->mouse_x / MOUSE_SCALE, yg->mouse_y / MOUSE_SCALE);
if (yg->mouse_window && !(me->event.buttons & YUTANI_MOUSE_BUTTON_RIGHT)) {
int32_t x, y;
yutani_device_to_window(yg->mouse_window, yg->mouse_x / MOUSE_SCALE, yg->mouse_y / MOUSE_SCALE, &x, &y);
yutani_msg_buildx_window_mouse_event_alloc(response);
yutani_msg_buildx_window_mouse_event(response,yg->mouse_window->wid, x, y, -1, -1, me->event.buttons, YUTANI_MOUSE_EVENT_MOVE);
pex_send(yg->server, yg->mouse_window->owner, response->size, (char *)response);
}
if (tmp_window) {
int32_t x, y;
yutani_msg_buildx_window_mouse_event_alloc(response);
if (tmp_window != yg->old_hover_window) {
yutani_device_to_window(tmp_window, yg->mouse_x / MOUSE_SCALE, yg->mouse_y / MOUSE_SCALE, &x, &y);
yutani_msg_buildx_window_mouse_event(response, tmp_window->wid, x, y, -1, -1, me->event.buttons, YUTANI_MOUSE_EVENT_ENTER);
pex_send(yg->server, tmp_window->owner, response->size, (char *)response);
if (yg->old_hover_window) {
yutani_device_to_window(yg->old_hover_window, yg->mouse_x / MOUSE_SCALE, yg->mouse_y / MOUSE_SCALE, &x, &y);
yutani_msg_buildx_window_mouse_event(response, yg->old_hover_window->wid, x, y, -1, -1, me->event.buttons, YUTANI_MOUSE_EVENT_LEAVE);
pex_send(yg->server, yg->old_hover_window->owner, response->size, (char *)response);
}
yg->old_hover_window = tmp_window;
}
if (tmp_window != yg->mouse_window || (me->event.buttons & YUTANI_MOUSE_BUTTON_RIGHT)) {
yutani_device_to_window(tmp_window, yg->mouse_x / MOUSE_SCALE, yg->mouse_y / MOUSE_SCALE, &x, &y);
yutani_msg_buildx_window_mouse_event(response, tmp_window->wid, x, y, -1, -1, me->event.buttons, YUTANI_MOUSE_EVENT_MOVE);
pex_send(yg->server, tmp_window->owner, response->size, (char *)response);
}
}
}
}
break;
case YUTANI_MOUSE_STATE_MOVING:
{
int button_down = (me->event.buttons & YUTANI_MOUSE_BUTTON_LEFT);
int drag_stop = yg->mouse_drag_button != 0 ? (!button_down) : (button_down);
if (drag_stop) {
yg->mouse_window = NULL;
yg->mouse_state = YUTANI_MOUSE_STATE_NORMAL;
mark_screen(yg, yg->mouse_x / MOUSE_SCALE - MOUSE_OFFSET_X, yg->mouse_y / MOUSE_SCALE - MOUSE_OFFSET_Y, MOUSE_WIDTH, MOUSE_HEIGHT);
} else {
if (yg->mouse_y / MOUSE_SCALE < 10) {
if (!yg->mouse_window->tiled) {
window_tile(yg, yg->mouse_window, 1, 1, 0, 0);
}
break;
}
if (yg->mouse_x / MOUSE_SCALE < 10) {
if (!yg->mouse_window->tiled) {
window_tile(yg, yg->mouse_window, 2, 1, 0, 0);
}
break;
} else if (yg->mouse_x / MOUSE_SCALE >= ((int)yg->width - 10)) {
if (!yg->mouse_window->tiled) {
window_tile(yg, yg->mouse_window, 2, 1, 1, 0);
}
break;
}
if (yg->mouse_window->tiled) {
if ((abs(yg->mouse_x - yg->mouse_init_x) > UNTILE_SENSITIVITY) || (abs(yg->mouse_y - yg->mouse_init_y) > UNTILE_SENSITIVITY)) {
/* Untile it */
window_untile(yg,yg->mouse_window);
/* Position the window such that it's representative of where it was, percentage-wise, in the untiled window */
float percent_x = (float)(yg->mouse_x / MOUSE_SCALE - yg->mouse_window->x) / (float)yg->mouse_window->width;
float percent_y = (float)(yg->mouse_y / MOUSE_SCALE - yg->mouse_window->y) / (float)yg->mouse_window->height;
window_move(yg, yg->mouse_window,
yg->mouse_x / MOUSE_SCALE - yg->mouse_window->untiled_width * percent_x,
yg->mouse_y / MOUSE_SCALE - yg->mouse_window->untiled_height * percent_y);
/* reset init_x / init_y */
yg->mouse_init_x = yg->mouse_x;
yg->mouse_init_y = yg->mouse_y;
yg->mouse_win_x = yg->mouse_window->x;
yg->mouse_win_y = yg->mouse_window->y;
}
} else {
int x, y;
x = yg->mouse_win_x + (yg->mouse_x - yg->mouse_init_x) / MOUSE_SCALE;
y = yg->mouse_win_y + (yg->mouse_y - yg->mouse_init_y) / MOUSE_SCALE;
window_move(yg, yg->mouse_window, x, y);
}
}
}
break;
case YUTANI_MOUSE_STATE_ROTATING:
{
if (!(me->event.buttons & YUTANI_MOUSE_BUTTON_RIGHT)) {
yg->mouse_window = NULL;
yg->mouse_state = YUTANI_MOUSE_STATE_NORMAL;
mark_screen(yg, yg->mouse_x / MOUSE_SCALE - MOUSE_OFFSET_X, yg->mouse_y / MOUSE_SCALE - MOUSE_OFFSET_Y, MOUSE_WIDTH, MOUSE_HEIGHT);
} else if (yg->mouse_window) {
/* Calculate rotation and make relative to initial rotation */
int32_t x_diff = yg->mouse_x / MOUSE_SCALE - (yg->mouse_window->x + yg->mouse_window->width / 2);
int32_t y_diff = yg->mouse_y / MOUSE_SCALE - (yg->mouse_window->y + yg->mouse_window->height / 2);
int new_r = atan2(x_diff, y_diff) * 180.0 / (-M_PI);
mark_window(yg, yg->mouse_window);
yg->mouse_window->rotation = new_r + yg->mouse_init_r;
mark_window(yg, yg->mouse_window);
}
}
break;
case YUTANI_MOUSE_STATE_DRAGGING:
{
if (!(me->event.buttons & yg->mouse_drag_button)) {
/* Mouse released */
yg->mouse_state = YUTANI_MOUSE_STATE_NORMAL;
int32_t old_x = yg->mouse_click_x_orig;
int32_t old_y = yg->mouse_click_y_orig;
if (yg->mouse_window) {
yutani_device_to_window(yg->mouse_window, yg->mouse_x / MOUSE_SCALE, yg->mouse_y / MOUSE_SCALE, &yg->mouse_click_x, &yg->mouse_click_y);
if (!yg->mouse_moved) {
yutani_msg_buildx_window_mouse_event_alloc(response);
yutani_msg_buildx_window_mouse_event(response,yg->mouse_window->wid, yg->mouse_click_x, yg->mouse_click_y, -1, -1, me->event.buttons, YUTANI_MOUSE_EVENT_CLICK);
pex_send(yg->server, yg->mouse_window->owner, response->size, (char *)response);
} else {
yutani_msg_buildx_window_mouse_event_alloc(response);
yutani_msg_buildx_window_mouse_event(response,yg->mouse_window->wid, yg->mouse_click_x, yg->mouse_click_y, old_x, old_y, me->event.buttons, YUTANI_MOUSE_EVENT_RAISE);
pex_send(yg->server, yg->mouse_window->owner, response->size, (char *)response);
}
}
} else {
yg->mouse_state = YUTANI_MOUSE_STATE_DRAGGING;
yg->mouse_moved = 1;
int32_t old_x = yg->mouse_click_x;
int32_t old_y = yg->mouse_click_y;
if (yg->mouse_window) {
yutani_device_to_window(yg->mouse_window, yg->mouse_x / MOUSE_SCALE, yg->mouse_y / MOUSE_SCALE, &yg->mouse_click_x, &yg->mouse_click_y);
if (old_x != yg->mouse_click_x || old_y != yg->mouse_click_y) {
yutani_msg_buildx_window_mouse_event_alloc(response);
yutani_msg_buildx_window_mouse_event(response,yg->mouse_window->wid, yg->mouse_click_x, yg->mouse_click_y, old_x, old_y, me->event.buttons, YUTANI_MOUSE_EVENT_DRAG);
pex_send(yg->server, yg->mouse_window->owner, response->size, (char *)response);
}
}
}
}
break;
case YUTANI_MOUSE_STATE_RESIZING:
{
int32_t relative_x, relative_y;
int32_t relative_init_x, relative_init_y;
yutani_device_to_window(yg->resizing_window, yg->mouse_init_x / MOUSE_SCALE, yg->mouse_init_y / MOUSE_SCALE, &relative_init_x, &relative_init_y);
yutani_device_to_window(yg->resizing_window, yg->mouse_x / MOUSE_SCALE, yg->mouse_y / MOUSE_SCALE, &relative_x, &relative_y);
int width_diff = (relative_x - relative_init_x);
int height_diff = (relative_y - relative_init_y);
mark_window(yg, yg->resizing_window);
if (yg->resizing_direction == SCALE_UP || yg->resizing_direction == SCALE_DOWN) {
width_diff = 0;
yg->resizing_offset_x = 0;
}
if (yg->resizing_direction == SCALE_LEFT || yg->resizing_direction == SCALE_RIGHT) {
height_diff = 0;
yg->resizing_offset_y = 0;
}
if (yg->resizing_direction == SCALE_LEFT ||
yg->resizing_direction == SCALE_UP_LEFT ||
yg->resizing_direction == SCALE_DOWN_LEFT) {
yg->resizing_offset_x = width_diff;
width_diff = -width_diff;
} else if (yg->resizing_direction == SCALE_RIGHT ||
yg->resizing_direction == SCALE_UP_RIGHT ||
yg->resizing_direction == SCALE_DOWN_RIGHT) {
yg->resizing_offset_x = 0;
}
if (yg->resizing_direction == SCALE_UP ||
yg->resizing_direction == SCALE_UP_LEFT ||
yg->resizing_direction == SCALE_UP_RIGHT) {
yg->resizing_offset_y = height_diff;
height_diff = -height_diff;
} else if (yg->resizing_direction == SCALE_DOWN ||
yg->resizing_direction == SCALE_DOWN_LEFT ||
yg->resizing_direction == SCALE_DOWN_RIGHT) {
yg->resizing_offset_y = 0;
}
yg->resizing_w = yg->resizing_window->width + width_diff;
yg->resizing_h = yg->resizing_window->height + height_diff;
/* Enforce logical boundaries */
if (yg->resizing_w < 1) {
yg->resizing_w = 1;
}
if (yg->resizing_h < 1) {
yg->resizing_h = 1;
}
if (yg->resizing_offset_x > yg->resizing_window->width) {
yg->resizing_offset_x = yg->resizing_window->width;
}
if (yg->resizing_offset_y > yg->resizing_window->height) {
yg->resizing_offset_y = yg->resizing_window->height;
}
mark_window(yg, yg->resizing_window);
if (!(me->event.buttons & yg->resizing_button)) {
int32_t x, y;
if (yg->resizing_window->rotation) {
/* If the window is rotated, we need to move the center to be where the new center should be, but x/y are based on the unrotated upper left corner. */
/* The center always moves by one-half the resize dimensions */
int32_t center_x, center_y;
yutani_window_to_device(yg->resizing_window, yg->resizing_offset_x + yg->resizing_w / 2, yg->resizing_offset_y + yg->resizing_h / 2, &center_x, &center_y);
x = center_x - yg->resizing_w / 2;
y = center_y - yg->resizing_h / 2;
} else {
yutani_window_to_device(yg->resizing_window, yg->resizing_offset_x, yg->resizing_offset_y, &x, &y);
}
TRACE("resize complete, now %d x %d", yg->resizing_w, yg->resizing_h);
window_move(yg, yg->resizing_window, x,y);
yutani_msg_buildx_window_resize_alloc(response);
yutani_msg_buildx_window_resize(response,YUTANI_MSG_RESIZE_OFFER, yg->resizing_window->wid, yg->resizing_w, yg->resizing_h, 0, yg->resizing_window->tiled);
pex_send(yg->server, yg->resizing_window->owner, response->size, (char *)response);
yg->resizing_window = NULL;
yg->mouse_window = NULL;
yg->mouse_state = YUTANI_MOUSE_STATE_NORMAL;
}
}
break;
default:
/* XXX ? */
break;
}
}
static yutani_globals_t * _static_yg;
static void yutani_display_resize_handle(int signum) {
(void)signum;
TRACE("Display change request, one moment.");
_static_yg->resize_on_next = 1;
}
/**
* main
*/
int main(int argc, char * argv[]) {
int argx = 0;
int results = parse_args(argc, argv, &argx);
if (results) return results;
yutani_globals_t * yg = malloc(sizeof(yutani_globals_t));
memset(yg, 0x00, sizeof(yutani_globals_t));
if (yutani_options.nested) {
yg->host_context = yutani_init();
yg->host_window = yutani_window_create(yg->host_context, yutani_options.nest_width, yutani_options.nest_height);
yutani_window_move(yg->host_context, yg->host_window, 50, 50);
yutani_window_advertise_icon(yg->host_context, yg->host_window, "Compositor", "compositor");
yg->backend_ctx = init_graphics_yutani_double_buffer(yg->host_window);
} else {
char * d = getenv("DISPLAY");
if (d && *d) {
fprintf(stderr, "DISPLAY is already set but not running nested. This is probably wrong.\n");
return 1;
}
_static_yg = yg;
signal(SIGWINEVENT, yutani_display_resize_handle);
yg->backend_ctx = init_graphics_fullscreen_double_buffer();
}
if (!yg->backend_ctx) {
free(yg);
TRACE("Failed to open framebuffer, bailing.");
return 1;
}
{
struct timeval t;
gettimeofday(&t, NULL);
yg->start_time = t.tv_sec;
yg->start_subtime = t.tv_usec;
}
yg->width = yg->backend_ctx->width;
yg->height = yg->backend_ctx->height;
draw_fill(yg->backend_ctx, rgb(110,110,110));
flip(yg->backend_ctx);
yg->backend_framebuffer = yg->backend_ctx->backbuffer;
if (yutani_options.nested) {
char * name = malloc(sizeof(char) * 64);
sprintf(name, "compositor-nest-%d", getpid());
yg->server_ident = name;
} else {
/* XXX check if this already exists? */
yg->server_ident = "compositor";
}
setenv("DISPLAY", yg->server_ident, 1);
FILE * server = pex_bind(yg->server_ident);
TRACE("pex bound? %d", server);
yg->server = server;
TRACE("Loading fonts...");
{
sprite_t _font_data[6];
load_sprite(&_font_data[0], "/usr/share/sdf_thin.bmp");
load_sprite(&_font_data[1], "/usr/share/sdf_bold.bmp");
load_sprite(&_font_data[2], "/usr/share/sdf_mono.bmp");
load_sprite(&_font_data[3], "/usr/share/sdf_mono_bold.bmp");
load_sprite(&_font_data[4], "/usr/share/sdf_mono_oblique.bmp");
load_sprite(&_font_data[5], "/usr/share/sdf_mono_bold_oblique.bmp");
TRACE(" Data loaded...");
size_t font_data_size = sizeof(unsigned int) * (1 + 6 * 3);
for (int i = 0; i < 6; ++i) {
font_data_size += 4 * _font_data[i].width * _font_data[i].height;
}
TRACE(" Size calculated: %d", font_data_size);
char tmp[100];
sprintf(tmp, "sys.%s.fonts", yg->server_ident);
size_t s = font_data_size;
char * font = (char *)syscall_shm_obtain(tmp, &s);
assert((s >= font_data_size) && "Font server failure.");
uint32_t * data = (uint32_t *)font;
data[0] = 6;
data[1] = _font_data[0].width;
data[2] = _font_data[0].height;
data[3] = (6 * 3 + 1) * sizeof(unsigned int);
memcpy(&font[data[3]], _font_data[0].bitmap, _font_data[0].width * _font_data[0].height * 4);
free(_font_data[0].bitmap);
for (int i = 1; i < 6; ++i) {
TRACE(" Loaded %d font(s)... %d %d %d", i, data[(i - 1) * 3 + 2], data[(i - 1) * 3 + 1], data[(i - 1) * 3 + 3]);
data[i * 3 + 1] = _font_data[i].width;
data[i * 3 + 2] = _font_data[i].height;
data[i * 3 + 3] = data[(i - 1) * 3 + 3] + data[(i - 1) * 3 + 2] * data[(i - 1) * 3 + 1] * 4;
memcpy(&font[data[i * 3 + 3]], _font_data[i].bitmap, _font_data[i].width * _font_data[i].height * 4);
free(_font_data[i].bitmap);
}
TRACE("Done loading fonts.");
}
TRACE("Loading sprites...");
#define MOUSE_DIR "/usr/share/cursor/"
load_sprite(&yg->mouse_sprite, MOUSE_DIR "mouse.bmp");
yg->mouse_sprite.alpha = ALPHA_EMBEDDED;
load_sprite(&yg->mouse_sprite_drag, MOUSE_DIR "drag.bmp");
yg->mouse_sprite_drag.alpha = ALPHA_EMBEDDED;
load_sprite(&yg->mouse_sprite_resize_v, MOUSE_DIR "resize-vertical.bmp");
yg->mouse_sprite_resize_v.alpha = ALPHA_EMBEDDED;
load_sprite(&yg->mouse_sprite_resize_h, MOUSE_DIR "resize-horizontal.bmp");
yg->mouse_sprite_resize_h.alpha = ALPHA_EMBEDDED;
load_sprite(&yg->mouse_sprite_resize_da, MOUSE_DIR "resize-uldr.bmp");
yg->mouse_sprite_resize_da.alpha = ALPHA_EMBEDDED;
load_sprite(&yg->mouse_sprite_resize_db, MOUSE_DIR "resize-dlur.bmp");
yg->mouse_sprite_resize_db.alpha = ALPHA_EMBEDDED;
TRACE("Done.");
TRACE("Initializing variables...");
yg->last_mouse_x = 0;
yg->last_mouse_y = 0;
yg->mouse_x = yg->width * MOUSE_SCALE / 2;
yg->mouse_y = yg->height * MOUSE_SCALE / 2;
yg->windows = list_create();
yg->wids_to_windows = hashmap_create_int(10);
yg->key_binds = hashmap_create_int(10);
yg->clients_to_windows = hashmap_create_int(10);
yg->mid_zs = list_create();
yg->window_subscribers = list_create();
yg->last_mouse_buttons = 0;
TRACE("Done.");
/* Try to load Cairo backend */
try_load_extensions(yg);
yutani_clip_init(yg);
pthread_t render_thread;
TRACE("Starting render thread.");
pthread_create(&render_thread, NULL, redraw, yg);
if (!fork()) {
if (argx < argc) {
TRACE("Starting alternate startup app: %s", argv[argx]);
execvp(argv[argx], &argv[argx]);
} else {
TRACE("Starting application");
char * args[] = {"/bin/session", NULL};
execvp(args[0], args);
TRACE("Failed to start app?");
}
}
int fds[4];
int mfd = -1;
int kfd = -1;
int amfd = -1;
int vmmouse = 0;
mouse_device_packet_t packet;
key_event_t event;
key_event_state_t state = {0};
fds[0] = fileno(server);
if (yutani_options.nested) {
fds[1] = fileno(yg->host_context->sock);
} else {
mfd = open("/dev/mouse", O_RDONLY);
kfd = open("/dev/kbd", O_RDONLY);
amfd = open("/dev/absmouse", O_RDONLY);
if (amfd < 0) {
amfd = open("/dev/vmmouse", O_RDONLY);
vmmouse = 1;
}
yg->vbox_rects = open("/dev/vboxrects", O_WRONLY);
yg->vbox_pointer = open("/dev/vboxpointer", O_WRONLY);
fds[1] = mfd;
fds[2] = kfd;
fds[3] = amfd;
}
while (1) {
if (yutani_options.nested) {
int index = fswait(2, fds);
if (index == 1) {
yutani_msg_t * m = yutani_poll(yg->host_context);
if (m) {
switch (m->type) {
case YUTANI_MSG_KEY_EVENT:
{
struct yutani_msg_key_event * ke = (void*)m->data;
yutani_msg_buildx_key_event_alloc(m_);
yutani_msg_buildx_key_event(m_, 0, &ke->event, &ke->state);
handle_key_event(yg, (struct yutani_msg_key_event *)m_->data);
}
break;
case YUTANI_MSG_WINDOW_MOUSE_EVENT:
{
struct yutani_msg_window_mouse_event * me = (void*)m->data;
mouse_device_packet_t packet;
packet.buttons = me->buttons;
packet.x_difference = me->new_x;
packet.y_difference = me->new_y;
yg->last_mouse_buttons = packet.buttons;
yutani_msg_buildx_mouse_event_alloc(m_);
yutani_msg_buildx_mouse_event(m_, 0, &packet, YUTANI_MOUSE_EVENT_TYPE_ABSOLUTE);
handle_mouse_event(yg, (struct yutani_msg_mouse_event *)m_->data);
}
break;
case YUTANI_MSG_RESIZE_OFFER:
{
struct yutani_msg_window_resize * wr = (void*)m->data;
TRACE("Resize request from host compositor for size %dx%d", wr->width, wr->height);
yutani_window_resize_accept(yg->host_context, yg->host_window, wr->width, wr->height);
yg->resize_on_next = 1;
}
break;
case YUTANI_MSG_WINDOW_CLOSE:
case YUTANI_MSG_SESSION_END:
{
TRACE("Host session ended. Should exit.");
yutani_msg_buildx_session_end_alloc(response);
yutani_msg_buildx_session_end(response);
pex_broadcast(server, response->size, (char *)response);
yg->server = NULL;
kill(render_thread.id, SIGINT);
exit(0);
}
break;
default:
break;
}
}
free(m);
continue;
}
} else {
int index = fswait(amfd == -1 ? 3 : 4, fds);
if (index == 2) {
unsigned char buf[1];
int r = read(kfd, buf, 1);
if (r > 0) {
kbd_scancode(&state, buf[0], &event);
yutani_msg_buildx_key_event_alloc(m);
yutani_msg_buildx_key_event(m,0, &event, &state);
handle_key_event(yg, (struct yutani_msg_key_event *)m->data);
}
continue;
} else if (index == 1) {
int r = read(mfd, (char *)&packet, sizeof(mouse_device_packet_t));
if (r > 0) {
yg->last_mouse_buttons = packet.buttons;
yutani_msg_buildx_mouse_event_alloc(m);
yutani_msg_buildx_mouse_event(m,0, &packet, YUTANI_MOUSE_EVENT_TYPE_RELATIVE);
handle_mouse_event(yg, (struct yutani_msg_mouse_event *)m->data);
}
continue;
} else if (index == 3) {
int r = read(amfd, (char *)&packet, sizeof(mouse_device_packet_t));
if (r > 0) {
if (!vmmouse) {
packet.buttons = yg->last_mouse_buttons & 0xF;
} else {
yg->last_mouse_buttons = packet.buttons;
}
yutani_msg_buildx_mouse_event_alloc(m);
yutani_msg_buildx_mouse_event(m,0, &packet, YUTANI_MOUSE_EVENT_TYPE_ABSOLUTE);
handle_mouse_event(yg, (struct yutani_msg_mouse_event *)m->data);
}
continue;
}
}
pex_packet_t * p = calloc(PACKET_SIZE, 1);
pex_listen(server, p);
yutani_msg_t * m = (yutani_msg_t *)p->data;
if (p->size == 0) {
/* Connection closed for client */
TRACE("Connection closed for client %x", p->source);
list_t * client_list = hashmap_get(yg->clients_to_windows, (void *)p->source);
if (client_list) {
foreach(node, client_list) {
yutani_server_window_t * win = node->value;
TRACE("Killing window %d", win->wid);
window_mark_for_close(yg, win);
}
hashmap_remove(yg->clients_to_windows, (void *)p->source);
list_free(client_list);
free(client_list);
}
if (hashmap_is_empty(yg->clients_to_windows)) {
TRACE("Last compositor client disconnected, exiting.");
yg->server = NULL;
kill(render_thread.id, SIGINT);
exit(0);
}
free(p);
continue;
}
if (m->magic != YUTANI_MSG__MAGIC) {
TRACE("Message has bad magic. (Should eject client, but will instead skip this message.) 0x%x", m->magic);
free(p);
continue;
}
switch(m->type) {
case YUTANI_MSG_HELLO:
{
TRACE("And hello to you, %08x!", p->source);
list_t * client_list = hashmap_get(yg->clients_to_windows, (void *)p->source);
if (!client_list) {
TRACE("Client is new: %x", p->source);
client_list = list_create();
hashmap_set(yg->clients_to_windows, (void *)p->source, client_list);
}
yutani_msg_buildx_welcome_alloc(response);
yutani_msg_buildx_welcome(response,yg->width, yg->height);
pex_send(server, p->source, response->size, (char *)response);
}
break;
case YUTANI_MSG_WINDOW_NEW:
case YUTANI_MSG_WINDOW_NEW_FLAGS:
{
struct yutani_msg_window_new_flags * wn = (void *)m->data;
TRACE("Client %08x requested a new window (%dx%d).", p->source, wn->width, wn->height);
yutani_server_window_t * w = server_window_create(yg, wn->width, wn->height, p->source, m->type != YUTANI_MSG_WINDOW_NEW ? wn->flags : 0);
yutani_msg_buildx_window_init_alloc(response);
yutani_msg_buildx_window_init(response,w->wid, w->width, w->height, w->bufid);
pex_send(server, p->source, response->size, (char *)response);
if (!(w->server_flags & YUTANI_WINDOW_FLAG_NO_STEAL_FOCUS)) {
set_focused_window(yg, w);
}
notify_subscribers(yg);
}
break;
case YUTANI_MSG_FLIP:
{
struct yutani_msg_flip * wf = (void *)m->data;
yutani_server_window_t * w = hashmap_get(yg->wids_to_windows, (void *)wf->wid);
if (w) {
mark_window(yg, w);
}
}
break;
case YUTANI_MSG_FLIP_REGION:
{
struct yutani_msg_flip_region * wf = (void *)m->data;
yutani_server_window_t * w = hashmap_get(yg->wids_to_windows, (void *)wf->wid);
if (w) {
mark_window_relative(yg, w, wf->x, wf->y, wf->width, wf->height);
}
}
break;
case YUTANI_MSG_KEY_EVENT:
{
/* XXX Verify this is from a valid device client */
struct yutani_msg_key_event * ke = (void *)m->data;
handle_key_event(yg, ke);
}
break;
case YUTANI_MSG_MOUSE_EVENT:
{
/* XXX Verify this is from a valid device client */
struct yutani_msg_mouse_event * me = (void *)m->data;
handle_mouse_event(yg, me);
}
break;
case YUTANI_MSG_WINDOW_MOVE:
{
struct yutani_msg_window_move * wm = (void *)m->data;
//TRACE("%08x wanted to move window %d to %d, %d", p->source, wm->wid, (int)wm->x, (int)wm->y);
if (wm->x > (int)yg->width + 100 || wm->x < -(int)yg->width || wm->y > (int)yg->height + 100 || wm->y < -(int)yg->height) {
TRACE("Refusing to move window to these coordinates.");
break;
}
yutani_server_window_t * win = hashmap_get(yg->wids_to_windows, (void*)wm->wid);
if (win) {
window_move(yg, win, wm->x, wm->y);
} else {
TRACE("%08x wanted to move window %d, but I can't find it?", p->source, wm->wid);
}
}
break;
case YUTANI_MSG_WINDOW_CLOSE:
{
struct yutani_msg_window_close * wc = (void *)m->data;
yutani_server_window_t * w = hashmap_get(yg->wids_to_windows, (void *)wc->wid);
if (w) {
window_mark_for_close(yg, w);
window_remove_from_client(yg, w);
}
}
break;
case YUTANI_MSG_WINDOW_STACK:
{
struct yutani_msg_window_stack * ws = (void *)m->data;
yutani_server_window_t * w = hashmap_get(yg->wids_to_windows, (void *)ws->wid);
if (w) {
reorder_window(yg, w, ws->z);
}
}
break;
case YUTANI_MSG_RESIZE_REQUEST:
{
struct yutani_msg_window_resize * wr = (void *)m->data;
yutani_server_window_t * w = hashmap_get(yg->wids_to_windows, (void *)wr->wid);
if (w) {
yutani_msg_buildx_window_resize_alloc(response);
yutani_msg_buildx_window_resize(response,YUTANI_MSG_RESIZE_OFFER, w->wid, wr->width, wr->height, 0, w->tiled);
pex_send(server, p->source, response->size, (char *)response);
}
}
break;
case YUTANI_MSG_RESIZE_OFFER:
{
struct yutani_msg_window_resize * wr = (void *)m->data;
yutani_server_window_t * w = hashmap_get(yg->wids_to_windows, (void *)wr->wid);
if (w) {
yutani_msg_buildx_window_resize_alloc(response);
yutani_msg_buildx_window_resize(response,YUTANI_MSG_RESIZE_OFFER, w->wid, wr->width, wr->height, 0, w->tiled);
pex_send(server, p->source, response->size, (char *)response);
}
}
break;
case YUTANI_MSG_RESIZE_ACCEPT:
{
struct yutani_msg_window_resize * wr = (void *)m->data;
yutani_server_window_t * w = hashmap_get(yg->wids_to_windows, (void *)wr->wid);
if (w) {
uint32_t newbufid = server_window_resize(yg, w, wr->width, wr->height);
yutani_msg_buildx_window_resize_alloc(response);
yutani_msg_buildx_window_resize(response,YUTANI_MSG_RESIZE_BUFID, w->wid, wr->width, wr->height, newbufid, 0);
pex_send(server, p->source, response->size, (char *)response);
}
}
break;
case YUTANI_MSG_RESIZE_DONE:
{
struct yutani_msg_window_resize * wr = (void *)m->data;
yutani_server_window_t * w = hashmap_get(yg->wids_to_windows, (void *)wr->wid);
if (w) {
server_window_resize_finish(yg, w, wr->width, wr->height);
}
}
break;
case YUTANI_MSG_QUERY_WINDOWS:
{
yutani_query_result(yg, p->source, yg->bottom_z);
foreach (node, yg->mid_zs) {
yutani_query_result(yg, p->source, node->value);
}
yutani_query_result(yg, p->source, yg->top_z);
yutani_msg_buildx_window_advertise_alloc(response, 0);
yutani_msg_buildx_window_advertise(response,0, 0, NULL, 0, NULL);
pex_send(server, p->source, response->size, (char *)response);
}
break;
case YUTANI_MSG_SUBSCRIBE:
{
foreach(node, yg->window_subscribers) {
if ((uint32_t)node->value == p->source) {
break;
}
}
list_insert(yg->window_subscribers, (void*)p->source);
}
break;
case YUTANI_MSG_UNSUBSCRIBE:
{
node_t * node = list_find(yg->window_subscribers, (void*)p->source);
if (node) {
list_delete(yg->window_subscribers, node);
}
}
break;
case YUTANI_MSG_WINDOW_ADVERTISE:
{
struct yutani_msg_window_advertise * wa = (void *)m->data;
yutani_server_window_t * w = hashmap_get(yg->wids_to_windows, (void *)wa->wid);
if (w) {
if (w->client_strings) free(w->client_strings);
for (int i = 0; i < 5; ++i) {
w->client_offsets[i] = wa->offsets[i];
}
w->client_flags = wa->flags;
w->client_length = wa->size;
w->client_strings = malloc(wa->size);
memcpy(w->client_strings, wa->strings, wa->size);
notify_subscribers(yg);
}
}
break;
case YUTANI_MSG_SESSION_END:
{
yutani_msg_buildx_session_end_alloc(response);
yutani_msg_buildx_session_end(response);
pex_broadcast(server, response->size, (char *)response);
}
break;
case YUTANI_MSG_WINDOW_FOCUS:
{
struct yutani_msg_window_focus * wa = (void *)m->data;
yutani_server_window_t * w = hashmap_get(yg->wids_to_windows, (void *)wa->wid);
if (w) {
set_focused_window(yg, w);
}
}
break;
case YUTANI_MSG_KEY_BIND:
{
struct yutani_msg_key_bind * wa = (void *)m->data;
add_key_bind(yg, wa, p->source);
}
break;
case YUTANI_MSG_WINDOW_DRAG_START:
{
struct yutani_msg_window_drag_start * wa = (void *)m->data;
yutani_server_window_t * w = hashmap_get(yg->wids_to_windows, (void *)wa->wid);
if (w) {
/* Start dragging */
mouse_start_drag(yg, w);
}
}
break;
case YUTANI_MSG_WINDOW_UPDATE_SHAPE:
{
struct yutani_msg_window_update_shape * wa = (void *)m->data;
yutani_server_window_t * w = hashmap_get(yg->wids_to_windows, (void *)wa->wid);
if (w) {
/* Set shape parameter */
server_window_update_shape(yg, w, wa->set_shape);
}
}
break;
case YUTANI_MSG_WINDOW_WARP_MOUSE:
{
struct yutani_msg_window_warp_mouse * wa = (void *)m->data;
yutani_server_window_t * w = hashmap_get(yg->wids_to_windows, (void *)wa->wid);
if (w) {
if (yg->focused_window == w) {
int32_t x, y;
yutani_window_to_device(w, wa->x, wa->y, &x, &y);
struct yutani_msg_mouse_event me;
me.event.x_difference = x;
me.event.y_difference = y;
me.event.buttons = 0;
me.type = YUTANI_MOUSE_EVENT_TYPE_ABSOLUTE;
me.wid = wa->wid;
handle_mouse_event(yg, &me);
}
}
}
break;
case YUTANI_MSG_WINDOW_SHOW_MOUSE:
{
struct yutani_msg_window_show_mouse * wa = (void *)m->data;
yutani_server_window_t * w = hashmap_get(yg->wids_to_windows, (void *)wa->wid);
if (w) {
if (wa->show_mouse == -1) {
w->show_mouse = w->default_mouse;
} else if (wa->show_mouse < 2) {
w->default_mouse = wa->show_mouse;
w->show_mouse = wa->show_mouse;
} else {
w->show_mouse = wa->show_mouse;
}
if (yg->focused_window == w) {
mark_screen(yg, yg->mouse_x / MOUSE_SCALE - MOUSE_OFFSET_X, yg->mouse_y / MOUSE_SCALE - MOUSE_OFFSET_Y, MOUSE_WIDTH, MOUSE_HEIGHT);
}
}
}
break;
case YUTANI_MSG_WINDOW_RESIZE_START:
{
struct yutani_msg_window_resize_start * wa = (void *)m->data;
yutani_server_window_t * w = hashmap_get(yg->wids_to_windows, (void *)wa->wid);
if (w) {
if (yg->focused_window == w && !yg->resizing_window) {
yg->resizing_window = w;
yg->resizing_button = YUTANI_MOUSE_BUTTON_LEFT; /* XXX Uh, what if we used something else */
mouse_start_resize(yg, wa->direction);
}
}
}
break;
case YUTANI_MSG_SPECIAL_REQUEST:
{
struct yutani_msg_special_request * sr = (void *)m->data;
yutani_server_window_t * w = hashmap_get(yg->wids_to_windows, (void *)sr->wid);
switch (sr->request) {
case YUTANI_SPECIAL_REQUEST_MAXIMIZE:
if (w) {
if (w->tiled) {
window_untile(yg,w);
window_move(yg,w,w->untiled_left,w->untiled_top);
} else {
window_tile(yg, w, 1, 1, 0, 0);
}
}
break;
case YUTANI_SPECIAL_REQUEST_PLEASE_CLOSE:
if (w) {
yutani_msg_buildx_window_close_alloc(response);
yutani_msg_buildx_window_close(response, w->wid);
pex_send(yg->server, w->owner, response->size, (char *)response);
}
break;
case YUTANI_SPECIAL_REQUEST_CLIPBOARD:
{
yutani_msg_buildx_clipboard_alloc(response, yg->clipboard_size);
yutani_msg_buildx_clipboard(response, yg->clipboard);
pex_send(server, p->source, response->size, (char *)response);
}
break;
case YUTANI_SPECIAL_REQUEST_RELOAD:
{
yg->reload_renderer = 1;
}
break;
default:
TRACE("Unknown special request type: 0x%x", sr->request);
break;
}
}
break;
case YUTANI_MSG_CLIPBOARD:
{
struct yutani_msg_clipboard * cb = (void *)m->data;
yg->clipboard_size = min(cb->size, 511);
memcpy(yg->clipboard, cb->content, yg->clipboard_size);
yg->clipboard[yg->clipboard_size] = '\0';
TRACE("Copied text to clipbard (size=%d)", yg->clipboard_size);
}
break;
default:
{
TRACE("Unknown type: 0x%8x", m->type);
}
break;
}
free(p);
}
return 0;
}
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