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weston/clients/window.c

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/*
* Copyright © 2008 Kristian Høgsberg
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include "../config.h"
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <math.h>
#include <time.h>
#include <cairo.h>
#include <glib.h>
#include <glib-object.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <sys/mman.h>
#include <wayland-egl.h>
#include <GL/gl.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#ifdef HAVE_CAIRO_EGL
#include <cairo-gl.h>
#endif
#include <X11/extensions/XKBcommon.h>
#include <linux/input.h>
#include "wayland-util.h"
#include "wayland-client.h"
#include "wayland-glib.h"
#include "cairo-util.h"
#include "window.h"
struct display {
struct wl_display *display;
struct wl_compositor *compositor;
struct wl_shell *shell;
struct wl_shm *shm;
struct wl_output *output;
struct rectangle screen_allocation;
EGLDisplay dpy;
EGLConfig rgb_config;
EGLConfig premultiplied_argb_config;
EGLContext ctx;
cairo_device_t *device;
int fd;
GMainLoop *loop;
GSource *source;
struct wl_list window_list;
struct wl_list input_list;
char *device_name;
cairo_surface_t *active_frame, *inactive_frame, *shadow;
struct xkb_desc *xkb;
cairo_surface_t **pointer_surfaces;
PFNGLEGLIMAGETARGETTEXTURE2DOESPROC image_target_texture_2d;
PFNEGLCREATEIMAGEKHRPROC create_image;
PFNEGLDESTROYIMAGEKHRPROC destroy_image;
};
enum {
TYPE_FULLSCREEN,
TYPE_TOPLEVEL,
TYPE_TRANSIENT,
TYPE_CUSTOM
};
struct window {
struct display *display;
struct window *parent;
struct wl_surface *surface;
char *title;
struct rectangle allocation, saved_allocation, server_allocation;
int x, y;
int resize_edges;
int redraw_scheduled;
int minimum_width, minimum_height;
int margin;
int type;
int decoration;
int transparent;
struct input *grab_device;
struct input *keyboard_device;
uint32_t name;
enum window_buffer_type buffer_type;
EGLImageKHR *image;
cairo_surface_t *cairo_surface, *pending_surface;
window_resize_handler_t resize_handler;
window_redraw_handler_t redraw_handler;
window_key_handler_t key_handler;
window_button_handler_t button_handler;
window_keyboard_focus_handler_t keyboard_focus_handler;
window_motion_handler_t motion_handler;
window_enter_handler_t enter_handler;
window_leave_handler_t leave_handler;
void *user_data;
struct wl_list link;
};
struct input {
struct display *display;
struct wl_input_device *input_device;
struct window *pointer_focus;
struct window *keyboard_focus;
struct selection_offer *offer;
uint32_t current_pointer_image;
uint32_t modifiers;
int32_t x, y, sx, sy;
struct wl_list link;
};
enum {
POINTER_DEFAULT = 100,
POINTER_UNSET
};
enum window_location {
WINDOW_INTERIOR = 0,
WINDOW_RESIZING_TOP = 1,
WINDOW_RESIZING_BOTTOM = 2,
WINDOW_RESIZING_LEFT = 4,
WINDOW_RESIZING_TOP_LEFT = 5,
WINDOW_RESIZING_BOTTOM_LEFT = 6,
WINDOW_RESIZING_RIGHT = 8,
WINDOW_RESIZING_TOP_RIGHT = 9,
WINDOW_RESIZING_BOTTOM_RIGHT = 10,
WINDOW_RESIZING_MASK = 15,
WINDOW_EXTERIOR = 16,
WINDOW_TITLEBAR = 17,
WINDOW_CLIENT_AREA = 18,
};
const char *option_xkb_layout = "us";
const char *option_xkb_variant = "";
const char *option_xkb_options = "";
static const GOptionEntry xkb_option_entries[] = {
{ "xkb-layout", 0, 0, G_OPTION_ARG_STRING,
&option_xkb_layout, "XKB Layout" },
{ "xkb-variant", 0, 0, G_OPTION_ARG_STRING,
&option_xkb_variant, "XKB Variant" },
{ "xkb-options", 0, 0, G_OPTION_ARG_STRING,
&option_xkb_options, "XKB Options" },
{ NULL }
};
static void
rounded_rect(cairo_t *cr, int x0, int y0, int x1, int y1, int radius)
{
cairo_move_to(cr, x0, y0 + radius);
cairo_arc(cr, x0 + radius, y0 + radius, radius, M_PI, 3 * M_PI / 2);
cairo_line_to(cr, x1 - radius, y0);
cairo_arc(cr, x1 - radius, y0 + radius, radius, 3 * M_PI / 2, 2 * M_PI);
cairo_line_to(cr, x1, y1 - radius);
cairo_arc(cr, x1 - radius, y1 - radius, radius, 0, M_PI / 2);
cairo_line_to(cr, x0 + radius, y1);
cairo_arc(cr, x0 + radius, y1 - radius, radius, M_PI / 2, M_PI);
cairo_close_path(cr);
}
static const cairo_user_data_key_t surface_data_key;
struct surface_data {
struct wl_buffer *buffer;
};
#define MULT(_d,c,a,t) \
do { t = c * a + 0x7f; _d = ((t >> 8) + t) >> 8; } while (0)
#ifdef HAVE_CAIRO_EGL
struct egl_window_surface_data {
struct display *display;
struct wl_surface *surface;
struct wl_egl_window *window;
EGLSurface surf;
};
static void
egl_window_surface_data_destroy(void *p)
{
struct egl_window_surface_data *data = p;
struct display *d = data->display;
eglDestroySurface(d->dpy, data->surf);
wl_egl_window_destroy(data->window);
data->surface = NULL;
free(p);
}
static cairo_surface_t *
display_create_egl_window_surface(struct display *display,
struct wl_surface *surface,
uint32_t flags,
struct rectangle *rectangle)
{
cairo_surface_t *cairo_surface;
struct egl_window_surface_data *data;
EGLConfig config;
const EGLint *attribs;
static const EGLint premul_attribs[] = {
EGL_ALPHA_FORMAT, EGL_ALPHA_FORMAT_PRE,
EGL_NONE
};
data = malloc(sizeof *data);
if (data == NULL)
return NULL;
data->display = display;
data->surface = surface;
if (flags & SURFACE_OPAQUE) {
config = display->rgb_config;
attribs = NULL;
} else {
config = display->premultiplied_argb_config;
attribs = premul_attribs;
}
data->window = wl_egl_window_create(surface,
rectangle->width,
rectangle->height);
data->surf = eglCreateWindowSurface(display->dpy, config,
data->window, attribs);
cairo_surface = cairo_gl_surface_create_for_egl(display->device,
data->surf,
rectangle->width,
rectangle->height);
cairo_surface_set_user_data(cairo_surface, &surface_data_key,
data, egl_window_surface_data_destroy);
return cairo_surface;
}
struct egl_image_surface_data {
struct surface_data data;
EGLImageKHR image;
GLuint texture;
struct display *display;
struct wl_egl_pixmap *pixmap;
};
static void
egl_image_surface_data_destroy(void *p)
{
struct egl_image_surface_data *data = p;
struct display *d = data->display;
cairo_device_acquire(d->device);
glDeleteTextures(1, &data->texture);
cairo_device_release(d->device);
d->destroy_image(d->dpy, data->image);
wl_buffer_destroy(data->data.buffer);
wl_egl_pixmap_destroy(data->pixmap);
free(p);
}
EGLImageKHR
display_get_image_for_egl_image_surface(struct display *display,
cairo_surface_t *surface)
{
struct egl_image_surface_data *data;
data = cairo_surface_get_user_data (surface, &surface_data_key);
return data->image;
}
static cairo_surface_t *
display_create_egl_image_surface(struct display *display,
uint32_t flags,
struct rectangle *rectangle)
{
struct egl_image_surface_data *data;
EGLDisplay dpy = display->dpy;
cairo_surface_t *surface;
EGLConfig config;
data = malloc(sizeof *data);
if (data == NULL)
return NULL;
data->display = display;
data->pixmap = wl_egl_pixmap_create(rectangle->width,
rectangle->height, 0);
if (data->pixmap == NULL) {
free(data);
return NULL;
}
if (flags & SURFACE_OPAQUE)
config = display->rgb_config;
else
config = display->premultiplied_argb_config;
data->image = display->create_image(dpy, NULL,
EGL_NATIVE_PIXMAP_KHR,
(EGLClientBuffer) data->pixmap,
NULL);
if (data->image == EGL_NO_IMAGE_KHR) {
wl_egl_pixmap_destroy(data->pixmap);
free(data);
return NULL;
}
data->data.buffer =
wl_egl_pixmap_create_buffer(data->pixmap);
cairo_device_acquire(display->device);
glGenTextures(1, &data->texture);
glBindTexture(GL_TEXTURE_2D, data->texture);
display->image_target_texture_2d(GL_TEXTURE_2D, data->image);
cairo_device_release(display->device);
surface = cairo_gl_surface_create_for_texture(display->device,
CAIRO_CONTENT_COLOR_ALPHA,
data->texture,
rectangle->width,
rectangle->height);
cairo_surface_set_user_data (surface, &surface_data_key,
data, egl_image_surface_data_destroy);
return surface;
}
static cairo_surface_t *
display_create_egl_image_surface_from_file(struct display *display,
const char *filename,
struct rectangle *rect)
{
cairo_surface_t *surface;
GdkPixbuf *pixbuf;
GError *error = NULL;
int stride, i;
unsigned char *pixels, *p, *end;
struct egl_image_surface_data *data;
pixbuf = gdk_pixbuf_new_from_file_at_scale(filename,
rect->width, rect->height,
FALSE, &error);
if (error != NULL)
return NULL;
if (!gdk_pixbuf_get_has_alpha(pixbuf) ||
gdk_pixbuf_get_n_channels(pixbuf) != 4) {
g_object_unref(pixbuf);
return NULL;
}
stride = gdk_pixbuf_get_rowstride(pixbuf);
pixels = gdk_pixbuf_get_pixels(pixbuf);
for (i = 0; i < rect->height; i++) {
p = pixels + i * stride;
end = p + rect->width * 4;
while (p < end) {
unsigned int t;
MULT(p[0], p[0], p[3], t);
MULT(p[1], p[1], p[3], t);
MULT(p[2], p[2], p[3], t);
p += 4;
}
}
surface = display_create_egl_image_surface(display, 0, rect);
if (surface == NULL) {
g_object_unref(pixbuf);
return NULL;
}
data = cairo_surface_get_user_data(surface, &surface_data_key);
cairo_device_acquire(display->device);
glBindTexture(GL_TEXTURE_2D, data->texture);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, rect->width, rect->height,
GL_RGBA, GL_UNSIGNED_BYTE, pixels);
cairo_device_release(display->device);
g_object_unref(pixbuf);
return surface;
}
#endif
struct wl_buffer *
display_get_buffer_for_surface(struct display *display,
cairo_surface_t *surface)
{
struct surface_data *data;
data = cairo_surface_get_user_data (surface, &surface_data_key);
return data->buffer;
}
struct shm_surface_data {
struct surface_data data;
void *map;
size_t length;
};
static void
shm_surface_data_destroy(void *p)
{
struct shm_surface_data *data = p;
wl_buffer_destroy(data->data.buffer);
munmap(data->map, data->length);
}
static cairo_surface_t *
display_create_shm_surface(struct display *display,
struct rectangle *rectangle, uint32_t flags)
{
struct shm_surface_data *data;
uint32_t format;
cairo_surface_t *surface;
int stride, fd;
char filename[] = "/tmp/wayland-shm-XXXXXX";
data = malloc(sizeof *data);
if (data == NULL)
return NULL;
stride = cairo_format_stride_for_width (CAIRO_FORMAT_ARGB32,
rectangle->width);
data->length = stride * rectangle->height;
fd = mkstemp(filename);
if (fd < 0) {
fprintf(stderr, "open %s failed: %m\n", filename);
return NULL;
}
if (ftruncate(fd, data->length) < 0) {
fprintf(stderr, "ftruncate failed: %m\n");
close(fd);
return NULL;
}
data->map = mmap(NULL, data->length,
PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
unlink(filename);
if (data->map == MAP_FAILED) {
fprintf(stderr, "mmap failed: %m\n");
close(fd);
return NULL;
}
surface = cairo_image_surface_create_for_data (data->map,
CAIRO_FORMAT_ARGB32,
rectangle->width,
rectangle->height,
stride);
cairo_surface_set_user_data (surface, &surface_data_key,
data, shm_surface_data_destroy);
if (flags & SURFACE_OPAQUE)
format = WL_SHM_FORMAT_XRGB32;
else
format = WL_SHM_FORMAT_PREMULTIPLIED_ARGB32;
data->data.buffer = wl_shm_create_buffer(display->shm,
fd,
rectangle->width,
rectangle->height,
stride, format);
close(fd);
return surface;
}
static cairo_surface_t *
display_create_shm_surface_from_file(struct display *display,
const char *filename,
struct rectangle *rect)
{
cairo_surface_t *surface;
GdkPixbuf *pixbuf;
GError *error = NULL;
int stride, i;
unsigned char *pixels, *p, *end, *dest_data;
int dest_stride;
uint32_t *d;
pixbuf = gdk_pixbuf_new_from_file_at_scale(filename,
rect->width, rect->height,
FALSE, &error);
if (error != NULL)
return NULL;
if (!gdk_pixbuf_get_has_alpha(pixbuf) ||
gdk_pixbuf_get_n_channels(pixbuf) != 4) {
g_object_unref(pixbuf);
return NULL;
}
stride = gdk_pixbuf_get_rowstride(pixbuf);
pixels = gdk_pixbuf_get_pixels(pixbuf);
surface = display_create_shm_surface(display, rect, 0);
if (surface == NULL) {
g_object_unref(pixbuf);
return NULL;
}
dest_data = cairo_image_surface_get_data (surface);
dest_stride = cairo_image_surface_get_stride (surface);
for (i = 0; i < rect->height; i++) {
d = (uint32_t *) (dest_data + i * dest_stride);
p = pixels + i * stride;
end = p + rect->width * 4;
while (p < end) {
unsigned int t;
unsigned char a, r, g, b;
a = p[3];
MULT(r, p[0], a, t);
MULT(g, p[1], a, t);
MULT(b, p[2], a, t);
p += 4;
*d++ = (a << 24) | (r << 16) | (g << 8) | b;
}
}
g_object_unref(pixbuf);
return surface;
}
static int
check_size(struct rectangle *rect)
{
if (rect->width && rect->height)
return 0;
fprintf(stderr, "tried to create surface of "
"width: %d, height: %d\n", rect->width, rect->height);
return -1;
}
cairo_surface_t *
display_create_surface(struct display *display,
struct wl_surface *surface,
struct rectangle *rectangle,
uint32_t flags)
{
if (check_size(rectangle) < 0)
return NULL;
#ifdef HAVE_CAIRO_EGL
if (display->dpy) {
if (surface)
return display_create_egl_window_surface(display,
surface,
flags,
rectangle);
else
return display_create_egl_image_surface(display,
flags,
rectangle);
}
#endif
return display_create_shm_surface(display, rectangle, flags);
}
static cairo_surface_t *
display_create_surface_from_file(struct display *display,
const char *filename,
struct rectangle *rectangle)
{
if (check_size(rectangle) < 0)
return NULL;
#ifdef HAVE_CAIRO_EGL
if (display->dpy) {
return display_create_egl_image_surface_from_file(display,
filename,
rectangle);
}
#endif
return display_create_shm_surface_from_file(display, filename, rectangle);
}
static const struct {
const char *filename;
int hotspot_x, hotspot_y;
} pointer_images[] = {
{ DATADIR "/wayland/bottom_left_corner.png", 6, 30 },
{ DATADIR "/wayland/bottom_right_corner.png", 28, 28 },
{ DATADIR "/wayland/bottom_side.png", 16, 20 },
{ DATADIR "/wayland/grabbing.png", 20, 17 },
{ DATADIR "/wayland/left_ptr.png", 10, 5 },
{ DATADIR "/wayland/left_side.png", 10, 20 },
{ DATADIR "/wayland/right_side.png", 30, 19 },
{ DATADIR "/wayland/top_left_corner.png", 8, 8 },
{ DATADIR "/wayland/top_right_corner.png", 26, 8 },
{ DATADIR "/wayland/top_side.png", 18, 8 },
{ DATADIR "/wayland/xterm.png", 15, 15 },
{ DATADIR "/wayland/hand1.png", 18, 11 }
};
static void
create_pointer_surfaces(struct display *display)
{
int i, count;
const int width = 32, height = 32;
struct rectangle rect;
count = ARRAY_LENGTH(pointer_images);
display->pointer_surfaces =
malloc(count * sizeof *display->pointer_surfaces);
rect.width = width;
rect.height = height;
for (i = 0; i < count; i++) {
display->pointer_surfaces[i] =
display_create_surface_from_file(display,
pointer_images[i].filename,
&rect);
}
}
cairo_surface_t *
display_get_pointer_surface(struct display *display, int pointer,
int *width, int *height,
int *hotspot_x, int *hotspot_y)
{
cairo_surface_t *surface;
surface = display->pointer_surfaces[pointer];
#if HAVE_CAIRO_EGL
*width = cairo_gl_surface_get_width(surface);
*height = cairo_gl_surface_get_height(surface);
#else
*width = cairo_image_surface_get_width(surface);
*height = cairo_image_surface_get_height(surface);
#endif
*hotspot_x = pointer_images[pointer].hotspot_x;
*hotspot_y = pointer_images[pointer].hotspot_y;
return cairo_surface_reference(surface);
}
static void
window_attach_surface(struct window *window);
static void
free_surface(void *data, struct wl_callback *callback, uint32_t time)
{
struct window *window = data;
wl_callback_destroy(callback);
cairo_surface_destroy(window->pending_surface);
window->pending_surface = NULL;
if (window->cairo_surface)
window_attach_surface(window);
}
static const struct wl_callback_listener free_surface_listener = {
free_surface
};
static void
window_get_resize_dx_dy(struct window *window, int *x, int *y)
{
if (window->resize_edges & WINDOW_RESIZING_LEFT)
*x = window->server_allocation.width - window->allocation.width;
else
*x = 0;
if (window->resize_edges & WINDOW_RESIZING_TOP)
*y = window->server_allocation.height -
window->allocation.height;
else
*y = 0;
window->resize_edges = 0;
}
static void
window_attach_surface(struct window *window)
{
struct display *display = window->display;
struct wl_buffer *buffer;
struct wl_callback *cb;
#ifdef HAVE_CAIRO_EGL
struct egl_window_surface_data *data;
#endif
int32_t x, y;
switch (window->buffer_type) {
#ifdef HAVE_CAIRO_EGL
case WINDOW_BUFFER_TYPE_EGL_WINDOW:
data = cairo_surface_get_user_data(window->cairo_surface,
&surface_data_key);
cairo_gl_surface_swapbuffers(window->cairo_surface);
wl_egl_window_get_attached_size(data->window,
&window->server_allocation.width,
&window->server_allocation.height);
break;
case WINDOW_BUFFER_TYPE_EGL_IMAGE:
#endif
case WINDOW_BUFFER_TYPE_SHM:
window_get_resize_dx_dy(window, &x, &y);
if (window->pending_surface != NULL)
return;
window->pending_surface = window->cairo_surface;
window->cairo_surface = NULL;
buffer =
display_get_buffer_for_surface(display,
window->pending_surface);
wl_surface_attach(window->surface, buffer, x, y);
window->server_allocation = window->allocation;
cb = wl_display_sync(display->display);
wl_callback_add_listener(cb, &free_surface_listener, window);
break;
default:
return;
}
switch (window->type) {
case TYPE_FULLSCREEN:
wl_shell_set_fullscreen(display->shell, window->surface);
break;
case TYPE_TOPLEVEL:
wl_shell_set_toplevel(display->shell, window->surface);
break;
case TYPE_TRANSIENT:
wl_shell_set_transient(display->shell, window->surface,
window->parent->surface,
window->x, window->y, 0);
break;
case TYPE_CUSTOM:
break;
}
wl_surface_damage(window->surface, 0, 0,
window->allocation.width,
window->allocation.height);
}
void
window_flush(struct window *window)
{
if (window->cairo_surface) {
switch (window->buffer_type) {
case WINDOW_BUFFER_TYPE_EGL_IMAGE:
case WINDOW_BUFFER_TYPE_SHM:
display_surface_damage(window->display,
window->cairo_surface,
0, 0,
window->allocation.width,
window->allocation.height);
break;
default:
break;
}
window_attach_surface(window);
}
}
void
window_set_surface(struct window *window, cairo_surface_t *surface)
{
cairo_surface_reference(surface);
if (window->cairo_surface != NULL)
cairo_surface_destroy(window->cairo_surface);
window->cairo_surface = surface;
}
#ifdef HAVE_CAIRO_EGL
static void
window_resize_cairo_window_surface(struct window *window)
{
struct egl_window_surface_data *data;
int x, y;
data = cairo_surface_get_user_data(window->cairo_surface,
&surface_data_key);
window_get_resize_dx_dy(window, &x, &y),
wl_egl_window_resize(data->window,
window->allocation.width,
window->allocation.height,
x,y);
cairo_gl_surface_set_size(window->cairo_surface,
window->allocation.width,
window->allocation.height);
}
#endif
void
window_create_surface(struct window *window)
{
cairo_surface_t *surface;
uint32_t flags = 0;
if (!window->transparent)
flags = SURFACE_OPAQUE;
switch (window->buffer_type) {
#ifdef HAVE_CAIRO_EGL
case WINDOW_BUFFER_TYPE_EGL_WINDOW:
if (window->cairo_surface) {
window_resize_cairo_window_surface(window);
return;
}
surface = display_create_surface(window->display,
window->surface,
&window->allocation, flags);
break;
case WINDOW_BUFFER_TYPE_EGL_IMAGE:
surface = display_create_surface(window->display,
NULL,
&window->allocation, flags);
break;
#endif
case WINDOW_BUFFER_TYPE_SHM:
surface = display_create_shm_surface(window->display,
&window->allocation, flags);
break;
default:
surface = NULL;
break;
}
window_set_surface(window, surface);
cairo_surface_destroy(surface);
}
static void
window_draw_menu(struct window *window)
{
cairo_t *cr;
int width, height, r = 5;
window_create_surface(window);
cr = cairo_create(window->cairo_surface);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0);
cairo_paint(cr);
width = window->allocation.width;
height = window->allocation.height;
rounded_rect(cr, r, r, width - r, height - r, r);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba(cr, 1.0, 1.0, 0.0, 0.5);
cairo_fill(cr);
cairo_destroy(cr);
}
static void
window_draw_decorations(struct window *window)
{
cairo_t *cr;
cairo_text_extents_t extents;
cairo_surface_t *frame;
int width, height, shadow_dx = 3, shadow_dy = 3;
window_create_surface(window);
width = window->allocation.width;
height = window->allocation.height;
cr = cairo_create(window->cairo_surface);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba(cr, 0, 0, 0, 0);
cairo_paint(cr);
cairo_set_source_rgba(cr, 0, 0, 0, 0.6);
tile_mask(cr, window->display->shadow,
shadow_dx, shadow_dy, width, height,
window->margin + 10 - shadow_dx,
window->margin + 10 - shadow_dy);
if (window->keyboard_device)
frame = window->display->active_frame;
else
frame = window->display->inactive_frame;
tile_source(cr, frame, 0, 0, width, height,
window->margin + 10, window->margin + 50);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_set_font_size(cr, 14);
cairo_text_extents(cr, window->title, &extents);
cairo_move_to(cr, (width - extents.width) / 2, 32 - extents.y_bearing);
if (window->keyboard_device)
cairo_set_source_rgb(cr, 0, 0, 0);
else
cairo_set_source_rgb(cr, 0.8, 0.8, 0.8);
cairo_show_text(cr, window->title);
cairo_destroy(cr);
/* FIXME: this breakes gears, fix cairo? */
#if 0
cairo_device_flush (window->display->device);
#endif
}
void
window_destroy(struct window *window)
{
wl_surface_destroy(window->surface);
wl_list_remove(&window->link);
free(window);
}
void
display_flush_cairo_device(struct display *display)
{
cairo_device_flush (display->device);
}
void
window_draw(struct window *window)
{
if (window->parent)
window_draw_menu(window);
else if (!window->decoration)
window_create_surface(window);
else
window_draw_decorations(window);
}
cairo_surface_t *
window_get_surface(struct window *window)
{
return cairo_surface_reference(window->cairo_surface);
}
struct wl_surface *
window_get_wl_surface(struct window *window)
{
return window->surface;
}
static int
get_pointer_location(struct window *window, int32_t x, int32_t y)
{
int vlocation, hlocation, location;
const int grip_size = 8;
if (!window->decoration)
return WINDOW_CLIENT_AREA;
if (x < window->margin)
hlocation = WINDOW_EXTERIOR;
else if (window->margin <= x && x < window->margin + grip_size)
hlocation = WINDOW_RESIZING_LEFT;
else if (x < window->allocation.width - window->margin - grip_size)
hlocation = WINDOW_INTERIOR;
else if (x < window->allocation.width - window->margin)
hlocation = WINDOW_RESIZING_RIGHT;
else
hlocation = WINDOW_EXTERIOR;
if (y < window->margin)
vlocation = WINDOW_EXTERIOR;
else if (window->margin <= y && y < window->margin + grip_size)
vlocation = WINDOW_RESIZING_TOP;
else if (y < window->allocation.height - window->margin - grip_size)
vlocation = WINDOW_INTERIOR;
else if (y < window->allocation.height - window->margin)
vlocation = WINDOW_RESIZING_BOTTOM;
else
vlocation = WINDOW_EXTERIOR;
location = vlocation | hlocation;
if (location & WINDOW_EXTERIOR)
location = WINDOW_EXTERIOR;
if (location == WINDOW_INTERIOR && y < window->margin + 50)
location = WINDOW_TITLEBAR;
else if (location == WINDOW_INTERIOR)
location = WINDOW_CLIENT_AREA;
return location;
}
static void
set_pointer_image(struct input *input, uint32_t time, int pointer)
{
struct display *display = input->display;
struct wl_buffer *buffer;
cairo_surface_t *surface;
int location;
location = get_pointer_location(input->pointer_focus,
input->sx, input->sy);
switch (location) {
case WINDOW_RESIZING_TOP:
pointer = POINTER_TOP;
break;
case WINDOW_RESIZING_BOTTOM:
pointer = POINTER_BOTTOM;
break;
case WINDOW_RESIZING_LEFT:
pointer = POINTER_LEFT;
break;
case WINDOW_RESIZING_RIGHT:
pointer = POINTER_RIGHT;
break;
case WINDOW_RESIZING_TOP_LEFT:
pointer = POINTER_TOP_LEFT;
break;
case WINDOW_RESIZING_TOP_RIGHT:
pointer = POINTER_TOP_RIGHT;
break;
case WINDOW_RESIZING_BOTTOM_LEFT:
pointer = POINTER_BOTTOM_LEFT;
break;
case WINDOW_RESIZING_BOTTOM_RIGHT:
pointer = POINTER_BOTTOM_RIGHT;
break;
case WINDOW_EXTERIOR:
case WINDOW_TITLEBAR:
if (input->current_pointer_image == POINTER_DEFAULT)
return;
wl_input_device_attach(input->input_device, time, NULL, 0, 0);
input->current_pointer_image = POINTER_DEFAULT;
return;
default:
break;
}
if (pointer == input->current_pointer_image)
return;
input->current_pointer_image = pointer;
surface = display->pointer_surfaces[pointer];
buffer = display_get_buffer_for_surface(display, surface);
wl_input_device_attach(input->input_device, time, buffer,
pointer_images[pointer].hotspot_x,
pointer_images[pointer].hotspot_y);
}
static void
window_handle_motion(void *data, struct wl_input_device *input_device,
uint32_t time,
int32_t x, int32_t y, int32_t sx, int32_t sy)
{
struct input *input = data;
struct window *window = input->pointer_focus;
int pointer = POINTER_LEFT_PTR;
input->x = x;
input->y = y;
input->sx = sx;
input->sy = sy;
if (window->motion_handler)
pointer = (*window->motion_handler)(window, input, time,
x, y, sx, sy,
window->user_data);
set_pointer_image(input, time, pointer);
}
static void
window_handle_button(void *data,
struct wl_input_device *input_device,
uint32_t time, uint32_t button, uint32_t state)
{
struct input *input = data;
struct window *window = input->pointer_focus;
int location;
location = get_pointer_location(window, input->sx, input->sy);
if (button == BTN_LEFT && state == 1) {
switch (location) {
case WINDOW_TITLEBAR:
wl_shell_move(window->display->shell,
window->surface, input_device, time);
break;
case WINDOW_RESIZING_TOP:
case WINDOW_RESIZING_BOTTOM:
case WINDOW_RESIZING_LEFT:
case WINDOW_RESIZING_RIGHT:
case WINDOW_RESIZING_TOP_LEFT:
case WINDOW_RESIZING_TOP_RIGHT:
case WINDOW_RESIZING_BOTTOM_LEFT:
case WINDOW_RESIZING_BOTTOM_RIGHT:
wl_shell_resize(window->display->shell,
window->surface, input_device, time,
location);
break;
case WINDOW_CLIENT_AREA:
if (window->button_handler)
(*window->button_handler)(window,
input, time,
button, state,
window->user_data);
break;
}
} else {
if (window->button_handler)
(*window->button_handler)(window,
input, time,
button, state,
window->user_data);
}
}
static void
window_handle_key(void *data, struct wl_input_device *input_device,
uint32_t time, uint32_t key, uint32_t state)
{
struct input *input = data;
struct window *window = input->keyboard_focus;
struct display *d = window->display;
uint32_t code, sym, level;
code = key + d->xkb->min_key_code;
if (window->keyboard_device != input)
return;
level = 0;
if (input->modifiers & XKB_COMMON_SHIFT_MASK &&
XkbKeyGroupWidth(d->xkb, code, 0) > 1)
level = 1;
sym = XkbKeySymEntry(d->xkb, code, level, 0);
if (state)
input->modifiers |= d->xkb->map->modmap[code];
else
input->modifiers &= ~d->xkb->map->modmap[code];
if (window->key_handler)
(*window->key_handler)(window, input, time, key, sym, state,
window->user_data);
}
static void
window_handle_pointer_focus(void *data,
struct wl_input_device *input_device,
uint32_t time, struct wl_surface *surface,
int32_t x, int32_t y, int32_t sx, int32_t sy)
{
struct input *input = data;
struct window *window;
int pointer;
window = input->pointer_focus;
if (window && window->surface != surface) {
if (window->leave_handler)
window->leave_handler(window, input,
time, window->user_data);
input->pointer_focus = NULL;
input->current_pointer_image = POINTER_UNSET;
}
if (surface) {
input->pointer_focus = wl_surface_get_user_data(surface);
window = input->pointer_focus;
input->x = x;
input->y = y;
input->sx = sx;
input->sy = sy;
pointer = POINTER_LEFT_PTR;
if (window->enter_handler)
pointer = window->enter_handler(window, input,
time, sx, sy,
window->user_data);
set_pointer_image(input, time, pointer);
}
}
static void
window_handle_keyboard_focus(void *data,
struct wl_input_device *input_device,
uint32_t time,
struct wl_surface *surface,
struct wl_array *keys)
{
struct input *input = data;
struct window *window = input->keyboard_focus;
struct display *d = input->display;
uint32_t *k, *end;
window = input->keyboard_focus;
if (window) {
window->keyboard_device = NULL;
if (window->keyboard_focus_handler)
(*window->keyboard_focus_handler)(window, NULL,
window->user_data);
}
if (surface)
input->keyboard_focus = wl_surface_get_user_data(surface);
else
input->keyboard_focus = NULL;
end = keys->data + keys->size;
input->modifiers = 0;
for (k = keys->data; k < end; k++)
input->modifiers |= d->xkb->map->modmap[*k];
window = input->keyboard_focus;
if (window) {
window->keyboard_device = input;
if (window->keyboard_focus_handler)
(*window->keyboard_focus_handler)(window,
window->keyboard_device,
window->user_data);
}
}
static const struct wl_input_device_listener input_device_listener = {
window_handle_motion,
window_handle_button,
window_handle_key,
window_handle_pointer_focus,
window_handle_keyboard_focus,
};
void
input_get_position(struct input *input, int32_t *x, int32_t *y)
{
*x = input->sx;
*y = input->sy;
}
struct wl_input_device *
input_get_input_device(struct input *input)
{
return input->input_device;
}
uint32_t
input_get_modifiers(struct input *input)
{
return input->modifiers;
}
struct wl_drag *
window_create_drag(struct window *window)
{
cairo_device_flush (window->display->device);
return wl_shell_create_drag(window->display->shell);
}
void
window_move(struct window *window, struct input *input, uint32_t time)
{
wl_shell_move(window->display->shell,
window->surface, input->input_device, time);
}
void
window_activate_drag(struct wl_drag *drag, struct window *window,
struct input *input, uint32_t time)
{
wl_drag_activate(drag, window->surface, input->input_device, time);
}
static void
handle_configure(void *data, struct wl_shell *shell,
uint32_t time, uint32_t edges,
struct wl_surface *surface, int32_t width, int32_t height)
{
struct window *window = wl_surface_get_user_data(surface);
int32_t child_width, child_height;
/* FIXME: this is probably the wrong place to check for width
* or height <= 0, but it prevents the compositor from crashing
*/
if (width <= 0 || height <= 0)
return;
window->resize_edges = edges;
if (window->resize_handler) {
child_width = width - 20 - window->margin * 2;
child_height = height - 60 - window->margin * 2;
(*window->resize_handler)(window,
child_width, child_height,
window->user_data);
} else {
window->allocation.width = width;
window->allocation.height = height;
if (window->redraw_handler)
window_schedule_redraw(window);
}
}
static const struct wl_shell_listener shell_listener = {
handle_configure,
};
void
window_get_allocation(struct window *window,
struct rectangle *allocation)
{
*allocation = window->allocation;
}
void
window_get_child_allocation(struct window *window,
struct rectangle *allocation)
{
if (!window->decoration) {
*allocation = window->allocation;
} else {
allocation->x = window->margin + 10;
allocation->y = window->margin + 50;
allocation->width =
window->allocation.width - 20 - window->margin * 2;
allocation->height =
window->allocation.height - 60 - window->margin * 2;
}
}
void
window_set_child_size(struct window *window, int32_t width, int32_t height)
{
if (window->decoration) {
window->allocation.x = 20 + window->margin;
window->allocation.y = 60 + window->margin;
window->allocation.width = width + 20 + window->margin * 2;
window->allocation.height = height + 60 + window->margin * 2;
} else {
window->allocation.x = 0;
window->allocation.y = 0;
window->allocation.width = width;
window->allocation.height = height;
}
}
static gboolean
idle_redraw(void *data)
{
struct window *window = data;
window->redraw_handler(window, window->user_data);
window->redraw_scheduled = 0;
return FALSE;
}
void
window_schedule_redraw(struct window *window)
{
if (!window->redraw_scheduled) {
g_idle_add(idle_redraw, window);
window->redraw_scheduled = 1;
}
}
void
window_set_custom(struct window *window)
{
window->type = TYPE_CUSTOM;
}
void
window_set_fullscreen(struct window *window, int fullscreen)
{
int32_t width, height;
if (window->type == TYPE_FULLSCREEN)
return;
if (fullscreen) {
window->type = TYPE_FULLSCREEN;
window->saved_allocation = window->allocation;
width = window->display->screen_allocation.width;
height = window->display->screen_allocation.height;
window->decoration = 0;
} else {
window->type = TYPE_TOPLEVEL;
width = window->saved_allocation.width - 20 - window->margin * 2;
height = window->saved_allocation.height - 60 - window->margin * 2;
window->decoration = 1;
}
(*window->resize_handler)(window, width, height, window->user_data);
}
void
window_set_decoration(struct window *window, int decoration)
{
window->decoration = decoration;
}
void
window_set_user_data(struct window *window, void *data)
{
window->user_data = data;
}
void *
window_get_user_data(struct window *window)
{
return window->user_data;
}
void
window_set_resize_handler(struct window *window,
window_resize_handler_t handler)
{
window->resize_handler = handler;
}
void
window_set_redraw_handler(struct window *window,
window_redraw_handler_t handler)
{
window->redraw_handler = handler;
}
void
window_set_key_handler(struct window *window,
window_key_handler_t handler)
{
window->key_handler = handler;
}
void
window_set_button_handler(struct window *window,
window_button_handler_t handler)
{
window->button_handler = handler;
}
void
window_set_motion_handler(struct window *window,
window_motion_handler_t handler)
{
window->motion_handler = handler;
}
void
window_set_enter_handler(struct window *window,
window_enter_handler_t handler)
{
window->enter_handler = handler;
}
void
window_set_leave_handler(struct window *window,
window_leave_handler_t handler)
{
window->leave_handler = handler;
}
void
window_set_keyboard_focus_handler(struct window *window,
window_keyboard_focus_handler_t handler)
{
window->keyboard_focus_handler = handler;
}
void
window_set_transparent(struct window *window, int transparent)
{
window->transparent = transparent;
}
void
window_set_title(struct window *window, const char *title)
{
free(window->title);
window->title = strdup(title);
}
const char *
window_get_title(struct window *window)
{
return window->title;
}
void
display_surface_damage(struct display *display, cairo_surface_t *cairo_surface,
int32_t x, int32_t y, int32_t width, int32_t height)
{
struct wl_buffer *buffer;
buffer = display_get_buffer_for_surface(display, cairo_surface);
wl_buffer_damage(buffer, x, y, width, height);
}
void
window_damage(struct window *window, int32_t x, int32_t y,
int32_t width, int32_t height)
{
wl_surface_damage(window->surface, x, y, width, height);
}
static struct window *
window_create_internal(struct display *display, struct window *parent,
int32_t width, int32_t height)
{
struct window *window;
window = malloc(sizeof *window);
if (window == NULL)
return NULL;
memset(window, 0, sizeof *window);
window->display = display;
window->parent = parent;
window->surface = wl_compositor_create_surface(display->compositor);
window->allocation.x = 0;
window->allocation.y = 0;
window->allocation.width = width;
window->allocation.height = height;
window->saved_allocation = window->allocation;
window->margin = 16;
window->decoration = 1;
window->transparent = 1;
if (display->dpy)
#ifdef HAVE_CAIRO_EGL
/* FIXME: make TYPE_EGL_IMAGE choosable for testing */
window->buffer_type = WINDOW_BUFFER_TYPE_EGL_WINDOW;
#else
window->buffer_type = WINDOW_BUFFER_TYPE_SHM;
#endif
else
window->buffer_type = WINDOW_BUFFER_TYPE_SHM;
wl_surface_set_user_data(window->surface, window);
wl_list_insert(display->window_list.prev, &window->link);
return window;
}
struct window *
window_create(struct display *display, int32_t width, int32_t height)
{
struct window *window;
window = window_create_internal(display, NULL, width, height);
if (!window)
return NULL;
return window;
}
struct window *
window_create_transient(struct display *display, struct window *parent,
int32_t x, int32_t y, int32_t width, int32_t height)
{
struct window *window;
window = window_create_internal(parent->display,
parent, width, height);
if (!window)
return NULL;
window->type = TYPE_TRANSIENT;
window->x = x;
window->y = y;
return window;
}
void
window_set_buffer_type(struct window *window, enum window_buffer_type type)
{
window->buffer_type = type;
}
static void
display_handle_geometry(void *data,
struct wl_output *wl_output,
int x, int y,
int physical_width,
int physical_height,
int subpixel,
const char *make,
const char *model)
{
struct display *display = data;
display->screen_allocation.x = x;
display->screen_allocation.y = y;
}
static void
display_handle_mode(void *data,
struct wl_output *wl_output,
uint32_t flags,
int width,
int height,
int refresh)
{
struct display *display = data;
display->screen_allocation.width = width;
display->screen_allocation.height = height;
}
static const struct wl_output_listener output_listener = {
display_handle_geometry,
display_handle_mode
};
static void
display_add_input(struct display *d, uint32_t id)
{
struct input *input;
input = malloc(sizeof *input);
if (input == NULL)
return;
memset(input, 0, sizeof *input);
input->display = d;
input->input_device =
wl_display_bind(d->display, id, &wl_input_device_interface);
input->pointer_focus = NULL;
input->keyboard_focus = NULL;
wl_list_insert(d->input_list.prev, &input->link);
wl_input_device_add_listener(input->input_device,
&input_device_listener, input);
wl_input_device_set_user_data(input->input_device, input);
}
struct selection_offer {
struct display *display;
struct wl_selection_offer *offer;
struct wl_array types;
struct input *input;
};
int
input_offers_mime_type(struct input *input, const char *type)
{
struct selection_offer *offer = input->offer;
char **p, **end;
if (offer == NULL)
return 0;
end = offer->types.data + offer->types.size;
for (p = offer->types.data; p < end; p++)
if (strcmp(*p, type) == 0)
return 1;
return 0;
}
void
input_receive_mime_type(struct input *input, const char *type, int fd)
{
struct selection_offer *offer = input->offer;
/* FIXME: A number of things can go wrong here: the object may
* not be the current selection offer any more (which could
* still work, but the source may have gone away or just
* destroyed its wl_selection) or the offer may not have the
* requested type after all (programmer/client error,
* typically) */
wl_selection_offer_receive(offer->offer, type, fd);
}
static void
selection_offer_offer(void *data,
struct wl_selection_offer *selection_offer,
const char *type)
{
struct selection_offer *offer = data;
char **p;
p = wl_array_add(&offer->types, sizeof *p);
if (p)
*p = strdup(type);
};
static void
selection_offer_keyboard_focus(void *data,
struct wl_selection_offer *selection_offer,
struct wl_input_device *input_device)
{
struct selection_offer *offer = data;
struct input *input;
char **p, **end;
if (input_device == NULL) {
printf("selection offer retracted %p\n", selection_offer);
input = offer->input;
input->offer = NULL;
wl_selection_offer_destroy(selection_offer);
wl_array_release(&offer->types);
free(offer);
return;
}
input = wl_input_device_get_user_data(input_device);
printf("new selection offer %p:", selection_offer);
offer->input = input;
input->offer = offer;
end = offer->types.data + offer->types.size;
for (p = offer->types.data; p < end; p++)
printf(" %s", *p);
printf("\n");
}
struct wl_selection_offer_listener selection_offer_listener = {
selection_offer_offer,
selection_offer_keyboard_focus
};
static void
add_selection_offer(struct display *d, uint32_t id)
{
struct selection_offer *offer;
offer = malloc(sizeof *offer);
if (offer == NULL)
return;
offer->offer =
wl_display_bind(d->display, id, &wl_selection_offer_interface);
offer->display = d;
wl_array_init(&offer->types);
offer->input = NULL;
wl_selection_offer_add_listener(offer->offer,
&selection_offer_listener, offer);
}
static void
display_handle_global(struct wl_display *display, uint32_t id,
const char *interface, uint32_t version, void *data)
{
struct display *d = data;
if (strcmp(interface, "wl_compositor") == 0) {
d->compositor =
wl_display_bind(display, id, &wl_compositor_interface);
} else if (strcmp(interface, "wl_output") == 0) {
d->output = wl_display_bind(display, id, &wl_output_interface);
wl_output_add_listener(d->output, &output_listener, d);
} else if (strcmp(interface, "wl_input_device") == 0) {
display_add_input(d, id);
} else if (strcmp(interface, "wl_shell") == 0) {
d->shell = wl_display_bind(display, id, &wl_shell_interface);
wl_shell_add_listener(d->shell, &shell_listener, d);
} else if (strcmp(interface, "wl_shm") == 0) {
d->shm = wl_display_bind(display, id, &wl_shm_interface);
} else if (strcmp(interface, "wl_selection_offer") == 0) {
add_selection_offer(d, id);
}
}
static void
display_render_frame(struct display *d)
{
int radius = 8;
cairo_t *cr;
d->shadow = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 128, 128);
cr = cairo_create(d->shadow);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_set_source_rgba(cr, 0, 0, 0, 1);
rounded_rect(cr, 16, 16, 112, 112, radius);
cairo_fill(cr);
cairo_destroy(cr);
blur_surface(d->shadow, 64);
d->active_frame =
cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 128, 128);
cr = cairo_create(d->active_frame);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_set_source_rgba(cr, 0.8, 0.8, 0.4, 1);
rounded_rect(cr, 16, 16, 112, 112, radius);
cairo_fill(cr);
cairo_destroy(cr);
d->inactive_frame =
cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 128, 128);
cr = cairo_create(d->inactive_frame);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_set_source_rgba(cr, 0.6, 0.6, 0.6, 1);
rounded_rect(cr, 16, 16, 112, 112, radius);
cairo_fill(cr);
cairo_destroy(cr);
}
static void
init_xkb(struct display *d)
{
struct xkb_rule_names names;
names.rules = "evdev";
names.model = "pc105";
names.layout = option_xkb_layout;
names.variant = option_xkb_variant;
names.options = option_xkb_options;
d->xkb = xkb_compile_keymap_from_rules(&names);
if (!d->xkb) {
fprintf(stderr, "Failed to compile keymap\n");
exit(1);
}
}
static int
init_egl(struct display *d)
{
EGLint major, minor;
EGLint n;
static const EGLint premul_argb_cfg_attribs[] = {
EGL_SURFACE_TYPE,
EGL_WINDOW_BIT | EGL_PIXMAP_BIT |
EGL_VG_ALPHA_FORMAT_PRE_BIT,
EGL_RED_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_BLUE_SIZE, 1,
EGL_ALPHA_SIZE, 1,
EGL_DEPTH_SIZE, 1,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_NONE
};
static const EGLint rgb_cfg_attribs[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT | EGL_PIXMAP_BIT,
EGL_RED_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_BLUE_SIZE, 1,
EGL_ALPHA_SIZE, 0,
EGL_DEPTH_SIZE, 1,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_NONE
};
d->dpy = eglGetDisplay(d->display);
if (!eglInitialize(d->dpy, &major, &minor)) {
fprintf(stderr, "failed to initialize display\n");
return -1;
}
if (!eglBindAPI(EGL_OPENGL_API)) {
fprintf(stderr, "failed to bind api EGL_OPENGL_API\n");
return -1;
}
if (!eglChooseConfig(d->dpy, premul_argb_cfg_attribs,
&d->premultiplied_argb_config, 1, &n) || n != 1) {
fprintf(stderr, "failed to choose premul argb config\n");
return -1;
}
if (!eglChooseConfig(d->dpy, rgb_cfg_attribs,
&d->rgb_config, 1, &n) || n != 1) {
fprintf(stderr, "failed to choose rgb config\n");
return -1;
}
d->ctx = eglCreateContext(d->dpy, d->rgb_config, EGL_NO_CONTEXT, NULL);
if (d->ctx == NULL) {
fprintf(stderr, "failed to create context\n");
return -1;
}
if (!eglMakeCurrent(d->dpy, NULL, NULL, d->ctx)) {
fprintf(stderr, "failed to make context current\n");
return -1;
}
#ifdef HAVE_CAIRO_EGL
d->device = cairo_egl_device_create(d->dpy, d->ctx);
if (cairo_device_status(d->device) != CAIRO_STATUS_SUCCESS) {
fprintf(stderr, "failed to get cairo egl device\n");
return -1;
}
#endif
return 0;
}
struct display *
display_create(int *argc, char **argv[], const GOptionEntry *option_entries)
{
struct display *d;
GOptionContext *context;
GOptionGroup *xkb_option_group;
GError *error;
g_type_init();
context = g_option_context_new(NULL);
if (option_entries)
g_option_context_add_main_entries(context, option_entries, "Wayland View");
xkb_option_group = g_option_group_new("xkb",
"Keyboard options",
"Show all XKB options",
NULL, NULL);
g_option_group_add_entries(xkb_option_group, xkb_option_entries);
g_option_context_add_group (context, xkb_option_group);
if (!g_option_context_parse(context, argc, argv, &error)) {
fprintf(stderr, "option parsing failed: %s\n", error->message);
exit(EXIT_FAILURE);
}
g_option_context_free(context);
d = malloc(sizeof *d);
if (d == NULL)
return NULL;
memset(d, 0, sizeof *d);
d->display = wl_display_connect(NULL);
if (d->display == NULL) {
fprintf(stderr, "failed to create display: %m\n");
return NULL;
}
wl_list_init(&d->input_list);
/* Set up listener so we'll catch all events. */
wl_display_add_global_listener(d->display,
display_handle_global, d);
/* Process connection events. */
wl_display_iterate(d->display, WL_DISPLAY_READABLE);
if (init_egl(d) < 0)
return NULL;
d->image_target_texture_2d =
(void *) eglGetProcAddress("glEGLImageTargetTexture2DOES");
d->create_image = (void *) eglGetProcAddress("eglCreateImageKHR");
d->destroy_image = (void *) eglGetProcAddress("eglDestroyImageKHR");
create_pointer_surfaces(d);
display_render_frame(d);
d->loop = g_main_loop_new(NULL, FALSE);
d->source = wl_glib_source_new(d->display);
g_source_attach(d->source, NULL);
wl_list_init(&d->window_list);
init_xkb(d);
return d;
}
struct wl_display *
display_get_display(struct display *display)
{
return display->display;
}
struct wl_compositor *
display_get_compositor(struct display *display)
{
return display->compositor;
}
EGLDisplay
display_get_egl_display(struct display *d)
{
return d->dpy;
}
EGLConfig
display_get_egl_config(struct display *d)
{
return d->rgb_config;
}
struct wl_shell *
display_get_shell(struct display *display)
{
return display->shell;
}
void
display_acquire_window_surface(struct display *display,
struct window *window,
EGLContext ctx)
{
#ifdef HAVE_CAIRO_EGL
struct egl_window_surface_data *data;
if (!window->cairo_surface)
return;
if (!ctx)
ctx = display->ctx;
data = cairo_surface_get_user_data(window->cairo_surface,
&surface_data_key);
cairo_device_acquire(display->device);
if (!eglMakeCurrent(display->dpy, data->surf, data->surf, ctx))
fprintf(stderr, "failed to make surface current\n");
#endif
}
void
display_release(struct display *display)
{
if (!eglMakeCurrent(display->dpy, NULL, NULL, display->ctx))
fprintf(stderr, "failed to make context current\n");
cairo_device_release(display->device);
}
void
display_run(struct display *d)
{
g_main_loop_run(d->loop);
}