weston/src/compositor-wayland.c

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/*
* Copyright © 2010-2011 Benjamin Franzke
* Copyright © 2013 Jason Ekstrand
*
* 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 <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/mman.h>
#include <linux/input.h>
#include <wayland-client.h>
#include <wayland-egl.h>
#include <wayland-cursor.h>
#include "compositor.h"
#include "gl-renderer.h"
#include "pixman-renderer.h"
#include "../shared/image-loader.h"
#include "../shared/os-compatibility.h"
#include "../shared/cairo-util.h"
#define WINDOW_TITLE "Weston Compositor"
struct wayland_compositor {
struct weston_compositor base;
struct {
struct wl_display *wl_display;
struct wl_registry *registry;
struct wl_compositor *compositor;
struct wl_shell *shell;
struct wl_shm *shm;
struct wl_event_source *wl_source;
uint32_t event_mask;
} parent;
int use_pixman;
struct theme *theme;
cairo_device_t *frame_device;
struct wl_cursor_theme *cursor_theme;
struct wl_cursor *cursor;
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struct wl_list input_list;
};
struct wayland_output {
struct weston_output base;
struct {
int draw_initial_frame;
struct wl_surface *surface;
struct wl_shell_surface *shell_surface;
int configure_width, configure_height;
} parent;
int keyboard_count;
char *name;
struct frame *frame;
struct {
struct wl_egl_window *egl_window;
struct {
cairo_surface_t *top;
cairo_surface_t *left;
cairo_surface_t *right;
cairo_surface_t *bottom;
} border;
} gl;
struct {
struct wl_list buffers;
struct wl_list free_buffers;
} shm;
struct weston_mode mode;
uint32_t scale;
};
struct wayland_shm_buffer {
struct wayland_output *output;
struct wl_list link;
struct wl_list free_link;
struct wl_buffer *buffer;
void *data;
size_t size;
pixman_region32_t damage;
int frame_damaged;
pixman_image_t *pm_image;
cairo_surface_t *c_surface;
};
struct wayland_input {
struct weston_seat base;
struct wayland_compositor *compositor;
struct wl_list link;
struct {
struct wl_seat *seat;
struct wl_pointer *pointer;
struct wl_keyboard *keyboard;
struct wl_touch *touch;
struct {
struct wl_surface *surface;
int32_t hx, hy;
} cursor;
} parent;
uint32_t key_serial;
uint32_t enter_serial;
int focus;
struct wayland_output *output;
struct wayland_output *keyboard_focus;
};
struct gl_renderer_interface *gl_renderer;
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static void
wayland_shm_buffer_destroy(struct wayland_shm_buffer *buffer)
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{
cairo_surface_destroy(buffer->c_surface);
pixman_image_unref(buffer->pm_image);
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wl_buffer_destroy(buffer->buffer);
munmap(buffer->data, buffer->size);
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pixman_region32_fini(&buffer->damage);
wl_list_remove(&buffer->link);
wl_list_remove(&buffer->free_link);
free(buffer);
}
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static void
buffer_release(void *data, struct wl_buffer *buffer)
{
struct wayland_shm_buffer *sb = data;
if (sb->output) {
wl_list_insert(&sb->output->shm.free_buffers, &sb->free_link);
} else {
wayland_shm_buffer_destroy(sb);
}
}
static const struct wl_buffer_listener buffer_listener = {
buffer_release
};
static struct wayland_shm_buffer *
wayland_output_get_shm_buffer(struct wayland_output *output)
{
struct wayland_compositor *c =
(struct wayland_compositor *) output->base.compositor;
struct wl_shm *shm = c->parent.shm;
struct wayland_shm_buffer *sb;
struct wl_shm_pool *pool;
int width, height, stride;
int32_t fx, fy;
int fd;
unsigned char *data;
if (!wl_list_empty(&output->shm.free_buffers)) {
sb = container_of(output->shm.free_buffers.next,
struct wayland_shm_buffer, free_link);
wl_list_remove(&sb->free_link);
wl_list_init(&sb->free_link);
return sb;
}
if (output->frame) {
width = frame_width(output->frame);
height = frame_height(output->frame);
} else {
width = output->base.current_mode->width;
height = output->base.current_mode->height;
}
stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, width);
fd = os_create_anonymous_file(height * stride);
if (fd < 0) {
perror("os_create_anonymous_file");
return NULL;
}
data = mmap(NULL, height * stride, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (data == MAP_FAILED) {
perror("mmap");
close(fd);
return NULL;
}
sb = zalloc(sizeof *sb);
sb->output = output;
wl_list_init(&sb->free_link);
wl_list_insert(&output->shm.buffers, &sb->link);
pixman_region32_init_rect(&sb->damage, 0, 0,
output->base.width, output->base.height);
sb->frame_damaged = 1;
sb->data = data;
sb->size = height * stride;
pool = wl_shm_create_pool(shm, fd, sb->size);
sb->buffer = wl_shm_pool_create_buffer(pool, 0,
width, height,
stride,
WL_SHM_FORMAT_ARGB8888);
wl_buffer_add_listener(sb->buffer, &buffer_listener, sb);
wl_shm_pool_destroy(pool);
close(fd);
memset(data, 0, sb->size);
sb->c_surface =
cairo_image_surface_create_for_data(data, CAIRO_FORMAT_ARGB32,
width, height, stride);
fx = 0;
fy = 0;
if (output->frame)
frame_interior(output->frame, &fx, &fy, 0, 0);
sb->pm_image =
pixman_image_create_bits(PIXMAN_a8r8g8b8, width, height,
(uint32_t *)(data + fy * stride) + fx,
stride);
return sb;
}
static void
frame_done(void *data, struct wl_callback *callback, uint32_t time)
{
struct weston_output *output = data;
wl_callback_destroy(callback);
weston_output_finish_frame(output, time);
}
static const struct wl_callback_listener frame_listener = {
frame_done
};
static void
draw_initial_frame(struct wayland_output *output)
{
struct wayland_shm_buffer *sb;
sb = wayland_output_get_shm_buffer(output);
/* If we are rendering with GL, then orphan it so that it gets
* destroyed immediately */
if (output->gl.egl_window)
sb->output = NULL;
wl_surface_attach(output->parent.surface, sb->buffer, 0, 0);
/* We only need to damage some part, as its only transparant
* pixels anyway. */
wl_surface_damage(output->parent.surface, 0, 0, 1, 1);
}
static void
wayland_output_update_gl_border(struct wayland_output *output)
{
int32_t ix, iy, iwidth, iheight, fwidth, fheight;
cairo_t *cr;
if (!output->frame)
return;
if (!(frame_status(output->frame) & FRAME_STATUS_REPAINT))
return;
fwidth = frame_width(output->frame);
fheight = frame_height(output->frame);
frame_interior(output->frame, &ix, &iy, &iwidth, &iheight);
if (!output->gl.border.top)
output->gl.border.top =
cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
fwidth, iy);
cr = cairo_create(output->gl.border.top);
frame_repaint(output->frame, cr);
cairo_destroy(cr);
gl_renderer->output_set_border(&output->base, GL_RENDERER_BORDER_TOP,
fwidth, iy,
cairo_image_surface_get_stride(output->gl.border.top) / 4,
cairo_image_surface_get_data(output->gl.border.top));
if (!output->gl.border.left)
output->gl.border.left =
cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
ix, 1);
cr = cairo_create(output->gl.border.left);
cairo_translate(cr, 0, -iy);
frame_repaint(output->frame, cr);
cairo_destroy(cr);
gl_renderer->output_set_border(&output->base, GL_RENDERER_BORDER_LEFT,
ix, 1,
cairo_image_surface_get_stride(output->gl.border.left) / 4,
cairo_image_surface_get_data(output->gl.border.left));
if (!output->gl.border.right)
output->gl.border.right =
cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
fwidth - (ix + iwidth), 1);
cr = cairo_create(output->gl.border.right);
cairo_translate(cr, -(iwidth + ix), -iy);
frame_repaint(output->frame, cr);
cairo_destroy(cr);
gl_renderer->output_set_border(&output->base, GL_RENDERER_BORDER_RIGHT,
fwidth - (ix + iwidth), 1,
cairo_image_surface_get_stride(output->gl.border.right) / 4,
cairo_image_surface_get_data(output->gl.border.right));
if (!output->gl.border.bottom)
output->gl.border.bottom =
cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
fwidth, fheight - (iy + iheight));
cr = cairo_create(output->gl.border.bottom);
cairo_translate(cr, 0, -(iy + iheight));
frame_repaint(output->frame, cr);
cairo_destroy(cr);
gl_renderer->output_set_border(&output->base, GL_RENDERER_BORDER_BOTTOM,
fwidth, fheight - (iy + iheight),
cairo_image_surface_get_stride(output->gl.border.bottom) / 4,
cairo_image_surface_get_data(output->gl.border.bottom));
}
static void
wayland_output_start_repaint_loop(struct weston_output *output_base)
{
struct wayland_output *output = (struct wayland_output *) output_base;
struct wayland_compositor *wc =
(struct wayland_compositor *)output->base.compositor;
struct wl_callback *callback;
/* If this is the initial frame, we need to attach a buffer so that
* the compositor can map the surface and include it in its render
* loop. If the surface doesn't end up in the render loop, the frame
* callback won't be invoked. The buffer is transparent and of the
* same size as the future real output buffer. */
if (output->parent.draw_initial_frame) {
output->parent.draw_initial_frame = 0;
draw_initial_frame(output);
}
callback = wl_surface_frame(output->parent.surface);
wl_callback_add_listener(callback, &frame_listener, output);
wl_surface_commit(output->parent.surface);
wl_display_flush(wc->parent.wl_display);
}
static int
wayland_output_repaint_gl(struct weston_output *output_base,
pixman_region32_t *damage)
{
struct wayland_output *output = (struct wayland_output *) output_base;
struct weston_compositor *ec = output->base.compositor;
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struct wl_callback *callback;
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callback = wl_surface_frame(output->parent.surface);
wl_callback_add_listener(callback, &frame_listener, output);
wayland_output_update_gl_border(output);
ec->renderer->repaint_output(&output->base, damage);
pixman_region32_subtract(&ec->primary_plane.damage,
&ec->primary_plane.damage, damage);
return 0;
}
static void
wayland_output_update_shm_border(struct wayland_shm_buffer *buffer)
{
int32_t ix, iy, iwidth, iheight, fwidth, fheight;
cairo_t *cr;
if (!buffer->output->frame || !buffer->frame_damaged)
return;
cr = cairo_create(buffer->c_surface);
frame_interior(buffer->output->frame, &ix, &iy, &iwidth, &iheight);
fwidth = frame_width(buffer->output->frame);
fheight = frame_height(buffer->output->frame);
/* Set the clip so we don't unnecisaraly damage the surface */
cairo_move_to(cr, ix, iy);
cairo_rel_line_to(cr, iwidth, 0);
cairo_rel_line_to(cr, 0, iheight);
cairo_rel_line_to(cr, -iwidth, 0);
cairo_line_to(cr, ix, iy);
cairo_line_to(cr, 0, iy);
cairo_line_to(cr, 0, fheight);
cairo_line_to(cr, fwidth, fheight);
cairo_line_to(cr, fwidth, 0);
cairo_line_to(cr, 0, 0);
cairo_line_to(cr, 0, iy);
cairo_close_path(cr);
cairo_clip(cr);
/* Draw using a pattern so that the final result gets clipped */
cairo_push_group(cr);
frame_repaint(buffer->output->frame, cr);
cairo_pop_group_to_source(cr);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_paint(cr);
cairo_destroy(cr);
}
static void
wayland_shm_buffer_attach(struct wayland_shm_buffer *sb)
{
pixman_region32_t damage;
pixman_box32_t *rects;
int32_t ix, iy, iwidth, iheight, fwidth, fheight;
int i, n;
pixman_region32_init(&damage);
weston_transformed_region(sb->output->base.width,
sb->output->base.height,
sb->output->base.transform,
sb->output->base.current_scale,
&sb->damage, &damage);
if (sb->output->frame) {
frame_interior(sb->output->frame, &ix, &iy, &iwidth, &iheight);
fwidth = frame_width(sb->output->frame);
fheight = frame_height(sb->output->frame);
pixman_region32_translate(&damage, ix, iy);
if (sb->frame_damaged) {
pixman_region32_union_rect(&damage, &damage,
0, 0, fwidth, iy);
pixman_region32_union_rect(&damage, &damage,
0, iy, ix, iheight);
pixman_region32_union_rect(&damage, &damage,
ix + iwidth, iy,
fwidth - (ix + iwidth), iheight);
pixman_region32_union_rect(&damage, &damage,
0, iy + iheight,
fwidth, fheight - (iy + iheight));
}
}
rects = pixman_region32_rectangles(&damage, &n);
wl_surface_attach(sb->output->parent.surface, sb->buffer, 0, 0);
for (i = 0; i < n; ++i)
wl_surface_damage(sb->output->parent.surface, rects[i].x1,
rects[i].y1, rects[i].x2 - rects[i].x1,
rects[i].y2 - rects[i].y1);
if (sb->output->frame)
pixman_region32_fini(&damage);
}
static int
wayland_output_repaint_pixman(struct weston_output *output_base,
pixman_region32_t *damage)
{
struct wayland_output *output = (struct wayland_output *) output_base;
struct wayland_compositor *c =
(struct wayland_compositor *)output->base.compositor;
struct wl_callback *callback;
struct wayland_shm_buffer *sb;
if (output->frame) {
if (frame_status(output->frame) & FRAME_STATUS_REPAINT)
wl_list_for_each(sb, &output->shm.buffers, link)
sb->frame_damaged = 1;
}
wl_list_for_each(sb, &output->shm.buffers, link)
pixman_region32_union(&sb->damage, &sb->damage, damage);
sb = wayland_output_get_shm_buffer(output);
wayland_output_update_shm_border(sb);
pixman_renderer_output_set_buffer(output_base, sb->pm_image);
c->base.renderer->repaint_output(output_base, &sb->damage);
wayland_shm_buffer_attach(sb);
callback = wl_surface_frame(output->parent.surface);
wl_callback_add_listener(callback, &frame_listener, output);
wl_surface_commit(output->parent.surface);
wl_display_flush(c->parent.wl_display);
pixman_region32_fini(&sb->damage);
pixman_region32_init(&sb->damage);
sb->frame_damaged = 0;
pixman_region32_subtract(&c->base.primary_plane.damage,
&c->base.primary_plane.damage, damage);
return 0;
}
static void
wayland_output_destroy(struct weston_output *output_base)
{
struct wayland_output *output = (struct wayland_output *) output_base;
struct wayland_compositor *c =
(struct wayland_compositor *) output->base.compositor;
if (c->use_pixman) {
pixman_renderer_output_destroy(output_base);
} else {
gl_renderer->output_destroy(output_base);
}
wl_egl_window_destroy(output->gl.egl_window);
wl_surface_destroy(output->parent.surface);
wl_shell_surface_destroy(output->parent.shell_surface);
if (output->frame)
frame_destroy(output->frame);
cairo_surface_destroy(output->gl.border.top);
cairo_surface_destroy(output->gl.border.left);
cairo_surface_destroy(output->gl.border.right);
cairo_surface_destroy(output->gl.border.bottom);
weston_output_destroy(&output->base);
free(output);
return;
}
static const struct wl_shell_surface_listener shell_surface_listener;
static int
wayland_output_init_gl_renderer(struct wayland_output *output)
{
int32_t fwidth = 0, fheight = 0;
if (output->frame) {
fwidth = frame_width(output->frame);
fheight = frame_height(output->frame);
} else {
fwidth = output->base.current_mode->width;
fheight = output->base.current_mode->height;
}
output->gl.egl_window =
wl_egl_window_create(output->parent.surface,
fwidth, fheight);
if (!output->gl.egl_window) {
weston_log("failure to create wl_egl_window\n");
return -1;
}
if (gl_renderer->output_create(&output->base,
output->gl.egl_window,
gl_renderer->alpha_attribs,
NULL) < 0)
goto cleanup_window;
return 0;
cleanup_window:
wl_egl_window_destroy(output->gl.egl_window);
return -1;
}
static int
wayland_output_init_pixman_renderer(struct wayland_output *output)
{
return pixman_renderer_output_create(&output->base);
}
static void
wayland_output_resize_surface(struct wayland_output *output)
{
struct wayland_compositor *c =
(struct wayland_compositor *)output->base.compositor;
struct wayland_shm_buffer *buffer, *next;
int32_t ix, iy, iwidth, iheight;
int32_t width, height;
struct wl_region *region;
width = output->base.current_mode->width;
height = output->base.current_mode->height;
if (output->frame) {
frame_resize_inside(output->frame, width, height);
frame_input_rect(output->frame, &ix, &iy, &iwidth, &iheight);
region = wl_compositor_create_region(c->parent.compositor);
wl_region_add(region, ix, iy, iwidth, iheight);
wl_surface_set_input_region(output->parent.surface, region);
wl_region_destroy(region);
frame_opaque_rect(output->frame, &ix, &iy, &iwidth, &iheight);
region = wl_compositor_create_region(c->parent.compositor);
wl_region_add(region, ix, iy, iwidth, iheight);
wl_surface_set_opaque_region(output->parent.surface, region);
wl_region_destroy(region);
width = frame_width(output->frame);
height = frame_height(output->frame);
} else {
region = wl_compositor_create_region(c->parent.compositor);
wl_region_add(region, 0, 0, width, height);
wl_surface_set_input_region(output->parent.surface, region);
wl_region_destroy(region);
region = wl_compositor_create_region(c->parent.compositor);
wl_region_add(region, 0, 0, width, height);
wl_surface_set_opaque_region(output->parent.surface, region);
wl_region_destroy(region);
}
if (output->gl.egl_window) {
wl_egl_window_resize(output->gl.egl_window,
width, height, 0, 0);
/* These will need to be re-created due to the resize */
gl_renderer->output_set_border(&output->base,
GL_RENDERER_BORDER_TOP,
0, 0, 0, NULL);
cairo_surface_destroy(output->gl.border.top);
output->gl.border.top = NULL;
gl_renderer->output_set_border(&output->base,
GL_RENDERER_BORDER_LEFT,
0, 0, 0, NULL);
cairo_surface_destroy(output->gl.border.left);
output->gl.border.left = NULL;
gl_renderer->output_set_border(&output->base,
GL_RENDERER_BORDER_RIGHT,
0, 0, 0, NULL);
cairo_surface_destroy(output->gl.border.right);
output->gl.border.right = NULL;
gl_renderer->output_set_border(&output->base,
GL_RENDERER_BORDER_BOTTOM,
0, 0, 0, NULL);
cairo_surface_destroy(output->gl.border.bottom);
output->gl.border.bottom = NULL;
}
/* Throw away any remaining SHM buffers */
wl_list_for_each_safe(buffer, next, &output->shm.free_buffers, link)
wayland_shm_buffer_destroy(buffer);
/* These will get thrown away when they get released */
wl_list_for_each(buffer, &output->shm.buffers, link)
buffer->output = NULL;
}
static int
wayland_output_set_windowed(struct wayland_output *output)
{
struct wayland_compositor *c =
(struct wayland_compositor *)output->base.compositor;
int tlen;
char *title;
if (output->frame)
return 0;
if (output->name) {
tlen = strlen(output->name) + strlen(WINDOW_TITLE " - ");
title = malloc(tlen + 1);
if (!title)
return -1;
snprintf(title, tlen + 1, WINDOW_TITLE " - %s", output->name);
} else {
title = strdup(WINDOW_TITLE);
}
if (!c->theme) {
c->theme = theme_create();
if (!c->theme) {
free(title);
return -1;
}
}
output->frame = frame_create(c->theme, 100, 100,
FRAME_BUTTON_CLOSE, title);
free(title);
if (!output->frame)
return -1;
if (output->keyboard_count)
frame_set_flag(output->frame, FRAME_FLAG_ACTIVE);
wayland_output_resize_surface(output);
wl_shell_surface_set_toplevel(output->parent.shell_surface);
return 0;
}
static void
wayland_output_set_fullscreen(struct wayland_output *output,
enum wl_shell_surface_fullscreen_method method,
uint32_t framerate, struct wl_output *target)
{
if (output->frame) {
frame_destroy(output->frame);
output->frame = NULL;
}
wayland_output_resize_surface(output);
wl_shell_surface_set_fullscreen(output->parent.shell_surface,
method, framerate, target);
}
static struct wayland_output *
wayland_output_create(struct wayland_compositor *c, int x, int y,
int width, int height, const char *name, int fullscreen,
uint32_t transform, int32_t scale)
{
struct wayland_output *output;
int output_width, output_height;
weston_log("Creating %dx%d wayland output at (%d, %d)\n",
width, height, x, y);
output = zalloc(sizeof *output);
if (output == NULL)
return NULL;
output->name = name ? strdup(name) : NULL;
output->base.make = "waywayland";
output->base.model = "none";
output_width = width * scale;
output_height = height * scale;
output->parent.surface =
wl_compositor_create_surface(c->parent.compositor);
if (!output->parent.surface)
goto err_name;
wl_surface_set_user_data(output->parent.surface, output);
output->parent.draw_initial_frame = 1;
output->parent.shell_surface =
wl_shell_get_shell_surface(c->parent.shell,
output->parent.surface);
if (!output->parent.shell_surface)
goto err_surface;
wl_shell_surface_add_listener(output->parent.shell_surface,
&shell_surface_listener, output);
if (fullscreen) {
wl_shell_surface_set_fullscreen(output->parent.shell_surface,
0, 0, NULL);
wl_display_roundtrip(c->parent.wl_display);
if (!width)
output_width = output->parent.configure_width;
if (!height)
output_height = output->parent.configure_height;
}
output->mode.flags =
WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED;
output->mode.width = output_width;
output->mode.height = output_height;
output->mode.refresh = 60000;
output->scale = scale;
wl_list_init(&output->base.mode_list);
wl_list_insert(&output->base.mode_list, &output->mode.link);
output->base.current_mode = &output->mode;
2012-02-01 16:45:51 +04:00
wl_list_init(&output->shm.buffers);
wl_list_init(&output->shm.free_buffers);
weston_output_init(&output->base, &c->base, x, y, width, height,
transform, scale);
if (c->use_pixman) {
if (wayland_output_init_pixman_renderer(output) < 0)
goto err_output;
output->base.repaint = wayland_output_repaint_pixman;
} else {
if (wayland_output_init_gl_renderer(output) < 0)
goto err_output;
output->base.repaint = wayland_output_repaint_gl;
}
output->base.start_repaint_loop = wayland_output_start_repaint_loop;
output->base.destroy = wayland_output_destroy;
output->base.assign_planes = NULL;
output->base.set_backlight = NULL;
output->base.set_dpms = NULL;
output->base.switch_mode = NULL;
wl_list_insert(c->base.output_list.prev, &output->base.link);
return output;
err_output:
weston_output_destroy(&output->base);
wl_shell_surface_destroy(output->parent.shell_surface);
err_surface:
wl_surface_destroy(output->parent.surface);
err_name:
free(output->name);
/* FIXME: cleanup weston_output */
free(output);
return NULL;
}
static struct wayland_output *
wayland_output_create_for_config(struct wayland_compositor *c,
struct weston_config_section *config_section,
int option_width, int option_height,
int option_scale, int32_t x, int32_t y)
{
struct wayland_output *output;
char *mode, *t, *name, *str;
int width, height, scale;
uint32_t transform;
unsigned int i, slen;
static const struct { const char *name; uint32_t token; } transform_names[] = {
{ "normal", WL_OUTPUT_TRANSFORM_NORMAL },
{ "90", WL_OUTPUT_TRANSFORM_90 },
{ "180", WL_OUTPUT_TRANSFORM_180 },
{ "270", WL_OUTPUT_TRANSFORM_270 },
{ "flipped", WL_OUTPUT_TRANSFORM_FLIPPED },
{ "flipped-90", WL_OUTPUT_TRANSFORM_FLIPPED_90 },
{ "flipped-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 },
{ "flipped-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 },
};
weston_config_section_get_string(config_section, "name", &name, NULL);
if (name) {
slen = strlen(name);
slen += strlen(WINDOW_TITLE " - ");
str = malloc(slen + 1);
if (str)
snprintf(str, slen + 1, WINDOW_TITLE " - %s", name);
free(name);
name = str;
}
if (!name)
name = strdup(WINDOW_TITLE);
weston_config_section_get_string(config_section,
"mode", &mode, "1024x600");
if (sscanf(mode, "%dx%d", &width, &height) != 2) {
weston_log("Invalid mode \"%s\" for output %s\n",
mode, name);
width = 1024;
height = 640;
}
free(mode);
if (option_width)
width = option_width;
if (option_height)
height = option_height;
weston_config_section_get_int(config_section, "scale", &scale, 1);
if (option_scale)
scale = option_scale;
weston_config_section_get_string(config_section,
"transform", &t, "normal");
transform = WL_OUTPUT_TRANSFORM_NORMAL;
for (i = 0; i < ARRAY_LENGTH(transform_names); i++) {
if (strcmp(transform_names[i].name, t) == 0) {
transform = transform_names[i].token;
break;
}
}
if (i >= ARRAY_LENGTH(transform_names))
weston_log("Invalid transform \"%s\" for output %s\n", t, name);
free(t);
output = wayland_output_create(c, x, y, width, height, name, 0,
transform, scale);
free(name);
return output;
}
static void
shell_surface_ping(void *data, struct wl_shell_surface *shell_surface,
uint32_t serial)
{
wl_shell_surface_pong(shell_surface, serial);
}
static void
shell_surface_configure(void *data, struct wl_shell_surface *shell_surface,
uint32_t edges, int32_t width, int32_t height)
{
struct wayland_output *output = data;
output->parent.configure_width = width;
output->parent.configure_height = height;
/* FIXME: implement resizing */
}
static void
shell_surface_popup_done(void *data, struct wl_shell_surface *shell_surface)
{
}
static const struct wl_shell_surface_listener shell_surface_listener = {
shell_surface_ping,
shell_surface_configure,
shell_surface_popup_done
};
/* Events received from the wayland-server this compositor is client of: */
/* parent input interface */
static void
input_set_cursor(struct wayland_input *input)
{
struct wl_buffer *buffer;
struct wl_cursor_image *image;
if (!input->compositor->cursor)
return; /* Couldn't load the cursor. Can't set it */
image = input->compositor->cursor->images[0];
buffer = wl_cursor_image_get_buffer(image);
wl_pointer_set_cursor(input->parent.pointer, input->enter_serial,
input->parent.cursor.surface,
image->hotspot_x, image->hotspot_y);
wl_surface_attach(input->parent.cursor.surface, buffer, 0, 0);
wl_surface_damage(input->parent.cursor.surface, 0, 0,
image->width, image->height);
wl_surface_commit(input->parent.cursor.surface);
}
static void
input_handle_pointer_enter(void *data, struct wl_pointer *pointer,
uint32_t serial, struct wl_surface *surface,
wl_fixed_t x, wl_fixed_t y)
{
struct wayland_input *input = data;
int32_t fx, fy;
enum theme_location location;
/* XXX: If we get a modifier event immediately before the focus,
* we should try to keep the same serial. */
input->enter_serial = serial;
input->output = wl_surface_get_user_data(surface);
if (input->output->frame) {
location = frame_pointer_enter(input->output->frame, input,
wl_fixed_to_int(x),
wl_fixed_to_int(y));
frame_interior(input->output->frame, &fx, &fy, NULL, NULL);
x -= wl_fixed_from_int(fx);
y -= wl_fixed_from_int(fy);
if (frame_status(input->output->frame) & FRAME_STATUS_REPAINT)
weston_output_schedule_repaint(&input->output->base);
} else {
location = THEME_LOCATION_CLIENT_AREA;
}
weston_output_transform_coordinate(&input->output->base, x, y, &x, &y);
if (location == THEME_LOCATION_CLIENT_AREA) {
input->focus = 1;
notify_pointer_focus(&input->base, &input->output->base, x, y);
wl_pointer_set_cursor(input->parent.pointer,
input->enter_serial, NULL, 0, 0);
} else {
input->focus = 0;
notify_pointer_focus(&input->base, NULL, 0, 0);
input_set_cursor(input);
}
}
static void
input_handle_pointer_leave(void *data, struct wl_pointer *pointer,
uint32_t serial, struct wl_surface *surface)
{
struct wayland_input *input = data;
if (input->output->frame) {
frame_pointer_leave(input->output->frame, input);
if (frame_status(input->output->frame) & FRAME_STATUS_REPAINT)
weston_output_schedule_repaint(&input->output->base);
}
notify_pointer_focus(&input->base, NULL, 0, 0);
input->output = NULL;
input->focus = 0;
}
2012-03-22 20:47:01 +04:00
static void
input_handle_motion(void *data, struct wl_pointer *pointer,
uint32_t time, wl_fixed_t x, wl_fixed_t y)
2012-03-22 20:47:01 +04:00
{
struct wayland_input *input = data;
int32_t fx, fy;
enum theme_location location;
if (input->output->frame) {
location = frame_pointer_motion(input->output->frame, input,
wl_fixed_to_int(x),
wl_fixed_to_int(y));
frame_interior(input->output->frame, &fx, &fy, NULL, NULL);
x -= wl_fixed_from_int(fx);
y -= wl_fixed_from_int(fy);
if (frame_status(input->output->frame) & FRAME_STATUS_REPAINT)
weston_output_schedule_repaint(&input->output->base);
} else {
location = THEME_LOCATION_CLIENT_AREA;
}
2012-03-22 20:47:01 +04:00
weston_output_transform_coordinate(&input->output->base, x, y, &x, &y);
if (input->focus && location != THEME_LOCATION_CLIENT_AREA) {
input_set_cursor(input);
notify_pointer_focus(&input->base, NULL, 0, 0);
input->focus = 0;
} else if (!input->focus && location == THEME_LOCATION_CLIENT_AREA) {
wl_pointer_set_cursor(input->parent.pointer,
input->enter_serial, NULL, 0, 0);
notify_pointer_focus(&input->base, &input->output->base, x, y);
input->focus = 1;
}
if (location == THEME_LOCATION_CLIENT_AREA)
notify_motion_absolute(&input->base, time, x, y);
2012-03-22 20:47:01 +04:00
}
static void
input_handle_button(void *data, struct wl_pointer *pointer,
uint32_t serial, uint32_t time, uint32_t button,
uint32_t state_w)
{
struct wayland_input *input = data;
enum wl_pointer_button_state state = state_w;
enum frame_button_state fstate;
enum theme_location location;
if (input->output->frame) {
fstate = state == WL_POINTER_BUTTON_STATE_PRESSED ?
FRAME_BUTTON_PRESSED : FRAME_BUTTON_RELEASED;
location = frame_pointer_button(input->output->frame, input,
button, fstate);
if (frame_status(input->output->frame) & FRAME_STATUS_MOVE) {
wl_shell_surface_move(input->output->parent.shell_surface,
input->parent.seat, serial);
frame_status_clear(input->output->frame,
FRAME_STATUS_MOVE);
return;
}
if (frame_status(input->output->frame) & FRAME_STATUS_CLOSE)
wl_display_terminate(input->compositor->base.wl_display);
if (frame_status(input->output->frame) & FRAME_STATUS_REPAINT)
weston_output_schedule_repaint(&input->output->base);
} else {
location = THEME_LOCATION_CLIENT_AREA;
}
if (location == THEME_LOCATION_CLIENT_AREA)
notify_button(&input->base, time, button, state);
}
static void
input_handle_axis(void *data, struct wl_pointer *pointer,
uint32_t time, uint32_t axis, wl_fixed_t value)
{
struct wayland_input *input = data;
notify_axis(&input->base, time, axis, value);
}
static const struct wl_pointer_listener pointer_listener = {
input_handle_pointer_enter,
input_handle_pointer_leave,
input_handle_motion,
input_handle_button,
input_handle_axis,
};
static void
input_handle_keymap(void *data, struct wl_keyboard *keyboard, uint32_t format,
int fd, uint32_t size)
{
struct wayland_input *input = data;
struct xkb_keymap *keymap;
char *map_str;
if (!data) {
close(fd);
return;
}
if (format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1) {
close(fd);
return;
}
map_str = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0);
if (map_str == MAP_FAILED) {
close(fd);
return;
}
keymap = xkb_map_new_from_string(input->compositor->base.xkb_context,
map_str,
XKB_KEYMAP_FORMAT_TEXT_V1,
0);
munmap(map_str, size);
close(fd);
if (!keymap) {
2012-06-07 20:01:59 +04:00
weston_log("failed to compile keymap\n");
return;
}
if (input->base.keyboard)
weston_seat_update_keymap(&input->base, keymap);
else
weston_seat_init_keyboard(&input->base, keymap);
xkb_map_unref(keymap);
}
static void
input_handle_keyboard_enter(void *data,
struct wl_keyboard *keyboard,
uint32_t serial,
struct wl_surface *surface,
struct wl_array *keys)
{
struct wayland_input *input = data;
struct wayland_output *focus;
focus = input->keyboard_focus;
if (focus) {
/* This shouldn't happen */
focus->keyboard_count--;
if (!focus->keyboard_count && focus->frame)
frame_unset_flag(focus->frame, FRAME_FLAG_ACTIVE);
if (frame_status(focus->frame) & FRAME_STATUS_REPAINT)
weston_output_schedule_repaint(&focus->base);
}
input->keyboard_focus = wl_surface_get_user_data(surface);
input->keyboard_focus->keyboard_count++;
focus = input->keyboard_focus;
if (focus->frame) {
frame_set_flag(focus->frame, FRAME_FLAG_ACTIVE);
if (frame_status(focus->frame) & FRAME_STATUS_REPAINT)
weston_output_schedule_repaint(&focus->base);
}
/* XXX: If we get a modifier event immediately before the focus,
* we should try to keep the same serial. */
notify_keyboard_focus_in(&input->base, keys,
STATE_UPDATE_AUTOMATIC);
}
static void
input_handle_keyboard_leave(void *data,
struct wl_keyboard *keyboard,
uint32_t serial,
struct wl_surface *surface)
{
struct wayland_input *input = data;
struct wayland_output *focus;
notify_keyboard_focus_out(&input->base);
focus = input->keyboard_focus;
if (!focus)
return; /* This shouldn't happen */
focus->keyboard_count--;
if (!focus->keyboard_count && focus->frame) {
frame_unset_flag(focus->frame, FRAME_FLAG_ACTIVE);
if (frame_status(focus->frame) & FRAME_STATUS_REPAINT)
weston_output_schedule_repaint(&focus->base);
}
input->keyboard_focus = NULL;
}
static void
input_handle_key(void *data, struct wl_keyboard *keyboard,
uint32_t serial, uint32_t time, uint32_t key, uint32_t state)
{
struct wayland_input *input = data;
input->key_serial = serial;
notify_key(&input->base, time, key,
state ? WL_KEYBOARD_KEY_STATE_PRESSED :
WL_KEYBOARD_KEY_STATE_RELEASED,
STATE_UPDATE_NONE);
}
static void
input_handle_modifiers(void *data, struct wl_keyboard *keyboard,
uint32_t serial_in, uint32_t mods_depressed,
uint32_t mods_latched, uint32_t mods_locked,
uint32_t group)
{
struct wayland_input *input = data;
struct wayland_compositor *c = input->compositor;
uint32_t serial_out;
/* If we get a key event followed by a modifier event with the
* same serial number, then we try to preserve those semantics by
* reusing the same serial number on the way out too. */
if (serial_in == input->key_serial)
serial_out = wl_display_get_serial(c->base.wl_display);
else
serial_out = wl_display_next_serial(c->base.wl_display);
xkb_state_update_mask(input->base.keyboard->xkb_state.state,
mods_depressed, mods_latched,
mods_locked, 0, 0, group);
notify_modifiers(&input->base, serial_out);
}
static const struct wl_keyboard_listener keyboard_listener = {
input_handle_keymap,
input_handle_keyboard_enter,
input_handle_keyboard_leave,
input_handle_key,
input_handle_modifiers,
};
static void
input_handle_capabilities(void *data, struct wl_seat *seat,
enum wl_seat_capability caps)
{
struct wayland_input *input = data;
if ((caps & WL_SEAT_CAPABILITY_POINTER) && !input->parent.pointer) {
input->parent.pointer = wl_seat_get_pointer(seat);
wl_pointer_set_user_data(input->parent.pointer, input);
wl_pointer_add_listener(input->parent.pointer,
&pointer_listener, input);
weston_seat_init_pointer(&input->base);
} else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && input->parent.pointer) {
wl_pointer_destroy(input->parent.pointer);
input->parent.pointer = NULL;
}
if ((caps & WL_SEAT_CAPABILITY_KEYBOARD) && !input->parent.keyboard) {
input->parent.keyboard = wl_seat_get_keyboard(seat);
wl_keyboard_set_user_data(input->parent.keyboard, input);
wl_keyboard_add_listener(input->parent.keyboard,
&keyboard_listener, input);
} else if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && input->parent.keyboard) {
wl_keyboard_destroy(input->parent.keyboard);
input->parent.keyboard = NULL;
}
}
static const struct wl_seat_listener seat_listener = {
input_handle_capabilities,
};
static void
display_add_seat(struct wayland_compositor *c, uint32_t id)
{
struct wayland_input *input;
input = zalloc(sizeof *input);
if (input == NULL)
return;
weston_seat_init(&input->base, &c->base, "default");
input->compositor = c;
input->parent.seat = wl_registry_bind(c->parent.registry, id,
&wl_seat_interface, 1);
wl_list_insert(c->input_list.prev, &input->link);
wl_seat_add_listener(input->parent.seat, &seat_listener, input);
wl_seat_set_user_data(input->parent.seat, input);
input->parent.cursor.surface =
wl_compositor_create_surface(c->parent.compositor);
}
static void
registry_handle_global(void *data, struct wl_registry *registry, uint32_t name,
const char *interface, uint32_t version)
{
struct wayland_compositor *c = data;
if (strcmp(interface, "wl_compositor") == 0) {
c->parent.compositor =
wl_registry_bind(registry, name,
&wl_compositor_interface, 1);
} else if (strcmp(interface, "wl_shell") == 0) {
c->parent.shell =
wl_registry_bind(registry, name,
&wl_shell_interface, 1);
} else if (strcmp(interface, "wl_seat") == 0) {
display_add_seat(c, name);
} else if (strcmp(interface, "wl_shm") == 0) {
c->parent.shm =
wl_registry_bind(registry, name, &wl_shm_interface, 1);
}
}
static const struct wl_registry_listener registry_listener = {
registry_handle_global
};
static int
wayland_compositor_handle_event(int fd, uint32_t mask, void *data)
{
struct wayland_compositor *c = data;
int count = 0;
if ((mask & WL_EVENT_HANGUP) || (mask & WL_EVENT_ERROR)) {
wl_display_terminate(c->base.wl_display);
return 0;
}
if (mask & WL_EVENT_READABLE)
count = wl_display_dispatch(c->parent.wl_display);
2011-12-29 07:51:20 +04:00
if (mask & WL_EVENT_WRITABLE)
wl_display_flush(c->parent.wl_display);
if (mask == 0) {
count = wl_display_dispatch_pending(c->parent.wl_display);
wl_display_flush(c->parent.wl_display);
}
return count;
}
static void
wayland_restore(struct weston_compositor *ec)
{
}
static void
wayland_destroy(struct weston_compositor *ec)
{
struct wayland_compositor *c = (struct wayland_compositor *) ec;
weston_compositor_shutdown(ec);
if (c->parent.shm)
wl_shm_destroy(c->parent.shm);
free(ec);
}
static const char *left_ptrs[] = {
"left_ptr",
"default",
"top_left_arrow",
"left-arrow"
};
static void
create_cursor(struct wayland_compositor *c, struct weston_config *config)
{
struct weston_config_section *s;
int size;
char *theme = NULL;
unsigned int i;
s = weston_config_get_section(config, "shell", NULL, NULL);
weston_config_section_get_string(s, "cursor-theme", &theme, NULL);
weston_config_section_get_int(s, "cursor-size", &size, 32);
c->cursor_theme = wl_cursor_theme_load(theme, size, c->parent.shm);
free(theme);
c->cursor = NULL;
for (i = 0; !c->cursor && i < ARRAY_LENGTH(left_ptrs); ++i)
c->cursor = wl_cursor_theme_get_cursor(c->cursor_theme,
left_ptrs[i]);
if (!c->cursor) {
fprintf(stderr, "could not load left cursor\n");
return;
}
}
static void
fullscreen_binding(struct weston_seat *seat_base, uint32_t time, uint32_t key,
void *data)
{
struct wayland_compositor *c = data;
struct wayland_input *input = NULL;
wl_list_for_each(input, &c->input_list, link)
if (&input->base == seat_base)
break;
if (!input || !input->output)
return;
if (input->output->frame)
wayland_output_set_fullscreen(input->output, 0, 0, NULL);
else
wayland_output_set_windowed(input->output);
weston_output_schedule_repaint(&input->output->base);
}
static struct wayland_compositor *
wayland_compositor_create(struct wl_display *display, int use_pixman,
const char *display_name, int *argc, char *argv[],
struct weston_config *config)
{
struct wayland_compositor *c;
struct wl_event_loop *loop;
int fd;
c = zalloc(sizeof *c);
if (c == NULL)
return NULL;
if (weston_compositor_init(&c->base, display, argc, argv,
config) < 0)
goto err_free;
c->parent.wl_display = wl_display_connect(display_name);
if (c->parent.wl_display == NULL) {
2012-06-07 20:01:59 +04:00
weston_log("failed to create display: %m\n");
goto err_compositor;
}
wl_list_init(&c->input_list);
c->parent.registry = wl_display_get_registry(c->parent.wl_display);
wl_registry_add_listener(c->parent.registry, &registry_listener, c);
wl_display_roundtrip(c->parent.wl_display);
create_cursor(c, config);
c->base.wl_display = display;
c->use_pixman = use_pixman;
if (!c->use_pixman) {
gl_renderer = weston_load_module("gl-renderer.so",
"gl_renderer_interface");
if (!gl_renderer)
c->use_pixman = 1;
}
if (!c->use_pixman) {
if (gl_renderer->create(&c->base, c->parent.wl_display,
gl_renderer->alpha_attribs,
NULL) < 0) {
weston_log("Failed to initialize the GL renderer; "
"falling back to pixman.\n");
c->use_pixman = 1;
}
}
if (c->use_pixman) {
if (pixman_renderer_init(&c->base) < 0) {
weston_log("Failed to initialize pixman renderer\n");
goto err_display;
}
}
c->base.destroy = wayland_destroy;
c->base.restore = wayland_restore;
loop = wl_display_get_event_loop(c->base.wl_display);
fd = wl_display_get_fd(c->parent.wl_display);
c->parent.wl_source =
wl_event_loop_add_fd(loop, fd, WL_EVENT_READABLE,
wayland_compositor_handle_event, c);
if (c->parent.wl_source == NULL)
goto err_renderer;
wl_event_source_check(c->parent.wl_source);
weston_compositor_add_key_binding(&c->base, KEY_F,
MODIFIER_CTRL | MODIFIER_ALT,
fullscreen_binding, c);
return c;
err_renderer:
c->base.renderer->destroy(&c->base);
err_display:
wl_display_disconnect(c->parent.wl_display);
err_compositor:
weston_compositor_shutdown(&c->base);
err_free:
free(c);
return NULL;
}
static void
wayland_compositor_destroy(struct wayland_compositor *c)
{
struct weston_output *output;
wl_list_for_each(output, &c->base.output_list, link)
wayland_output_destroy(output);
c->base.renderer->destroy(&c->base);
wl_display_disconnect(c->parent.wl_display);
if (c->theme)
theme_destroy(c->theme);
if (c->frame_device)
cairo_device_destroy(c->frame_device);
wl_cursor_theme_destroy(c->cursor_theme);
weston_compositor_shutdown(&c->base);
free(c);
}
WL_EXPORT struct weston_compositor *
backend_init(struct wl_display *display, int *argc, char *argv[],
struct weston_config *config)
{
struct wayland_compositor *c;
struct wayland_output *output;
struct weston_config_section *section;
int x, count, width, height, scale, use_pixman, fullscreen;
const char *section_name, *display_name;
char *name;
const struct weston_option wayland_options[] = {
{ WESTON_OPTION_INTEGER, "width", 0, &width },
{ WESTON_OPTION_INTEGER, "height", 0, &height },
{ WESTON_OPTION_INTEGER, "scale", 0, &scale },
{ WESTON_OPTION_STRING, "display", 0, &display_name },
{ WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman },
{ WESTON_OPTION_INTEGER, "output-count", 0, &count },
{ WESTON_OPTION_BOOLEAN, "fullscreen", 0, &fullscreen },
};
width = 0;
height = 0;
scale = 0;
display_name = NULL;
use_pixman = 0;
count = 1;
fullscreen = 0;
parse_options(wayland_options,
ARRAY_LENGTH(wayland_options), argc, argv);
c = wayland_compositor_create(display, use_pixman, display_name,
argc, argv, config);
if (!c)
return NULL;
if (fullscreen) {
output = wayland_output_create(c, 0, 0, width, height,
NULL, 1, 0, 1);
if (!output)
goto err_outputs;
wayland_output_set_fullscreen(output, 0, 0, NULL);
return &c->base;
}
section = NULL;
x = 0;
while (weston_config_next_section(config, &section, &section_name)) {
if (!section_name || strcmp(section_name, "output") != 0)
continue;
weston_config_section_get_string(section, "name", &name, NULL);
if (name == NULL)
continue;
if (name[0] != 'W' || name[1] != 'L') {
free(name);
continue;
}
free(name);
output = wayland_output_create_for_config(c, section, width,
height, scale, x, 0);
if (!output)
goto err_outputs;
if (wayland_output_set_windowed(output))
goto err_outputs;
x += output->base.width;
--count;
}
if (!width)
width = 1024;
if (!height)
height = 640;
if (!scale)
scale = 1;
while (count > 0) {
output = wayland_output_create(c, x, 0, width, height,
NULL, 0, 0, scale);
if (!output)
goto err_outputs;
if (wayland_output_set_windowed(output))
goto err_outputs;
x += width;
--count;
}
return &c->base;
err_outputs:
wayland_compositor_destroy(c);
return NULL;
}