You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
weston/compositor/compositor.c

2020 lines
50 KiB

/*
* Copyright © 2008 Kristian Høgsberg
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#define _GNU_SOURCE
#include "config.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdint.h>
#include <limits.h>
#include <stdarg.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <unistd.h>
#include <math.h>
#include <linux/input.h>
#include <dlfcn.h>
#include <getopt.h>
#include <signal.h>
#include "wayland-server.h"
#include "compositor.h"
/* The plan here is to generate a random anonymous socket name and
* advertise that through a service on the session dbus.
*/
static const char *option_socket_name = NULL;
static const char *option_background = "background.jpg";
static int option_idle_time = 300;
WL_EXPORT void
wlsc_matrix_init(struct wlsc_matrix *matrix)
{
static const struct wlsc_matrix identity = {
{ 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 }
};
memcpy(matrix, &identity, sizeof identity);
}
static void
wlsc_matrix_multiply(struct wlsc_matrix *m, const struct wlsc_matrix *n)
{
struct wlsc_matrix tmp;
const GLfloat *row, *column;
div_t d;
int i, j;
for (i = 0; i < 16; i++) {
tmp.d[i] = 0;
d = div(i, 4);
row = m->d + d.quot * 4;
column = n->d + d.rem;
for (j = 0; j < 4; j++)
tmp.d[i] += row[j] * column[j * 4];
}
memcpy(m, &tmp, sizeof tmp);
}
WL_EXPORT void
wlsc_matrix_translate(struct wlsc_matrix *matrix, GLfloat x, GLfloat y, GLfloat z)
{
struct wlsc_matrix translate = {
{ 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, x, y, z, 1 }
};
wlsc_matrix_multiply(matrix, &translate);
}
WL_EXPORT void
wlsc_matrix_scale(struct wlsc_matrix *matrix, GLfloat x, GLfloat y, GLfloat z)
{
struct wlsc_matrix scale = {
{ x, 0, 0, 0, 0, y, 0, 0, 0, 0, z, 0, 0, 0, 0, 1 }
};
wlsc_matrix_multiply(matrix, &scale);
}
static void
wlsc_matrix_transform(struct wlsc_matrix *matrix, struct wlsc_vector *v)
{
int i, j;
struct wlsc_vector t;
for (i = 0; i < 4; i++) {
t.f[i] = 0;
for (j = 0; j < 4; j++)
t.f[i] += v->f[j] * matrix->d[i + j * 4];
}
*v = t;
}
WL_EXPORT void
wlsc_spring_init(struct wlsc_spring *spring,
double k, double current, double target)
{
spring->k = k;
spring->friction = 100.0;
spring->current = current;
spring->previous = current;
spring->target = target;
}
WL_EXPORT void
wlsc_spring_update(struct wlsc_spring *spring, uint32_t msec)
{
double force, v, current, step;
step = (msec - spring->timestamp) / 500.0;
spring->timestamp = msec;
current = spring->current;
v = current - spring->previous;
force = spring->k * (spring->target - current) / 10.0 +
(spring->previous - current) - v * spring->friction;
spring->current =
current + (current - spring->previous) + force * step * step;
spring->previous = current;
if (spring->current >= 1.0) {
#ifdef TWEENER_BOUNCE
spring->current = 2.0 - spring->current;
spring->previous = 2.0 - spring->previous;
#else
spring->current = 1.0;
spring->previous = 1.0;
#endif
}
if (spring->current <= 0.0) {
spring->current = 0.0;
spring->previous = 0.0;
}
}
WL_EXPORT int
wlsc_spring_done(struct wlsc_spring *spring)
{
return fabs(spring->previous - spring->target) < 0.0002 &&
fabs(spring->current - spring->target) < 0.0002;
}
WL_EXPORT struct wlsc_surface *
wlsc_surface_create(struct wlsc_compositor *compositor,
int32_t x, int32_t y, int32_t width, int32_t height)
{
struct wlsc_surface *surface;
surface = malloc(sizeof *surface);
if (surface == NULL)
return NULL;
wl_list_init(&surface->surface.destroy_listener_list);
wl_list_init(&surface->link);
wl_list_init(&surface->buffer_link);
surface->map_type = WLSC_SURFACE_MAP_UNMAPPED;
glGenTextures(1, &surface->texture);
glBindTexture(GL_TEXTURE_2D, surface->texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
surface->compositor = compositor;
surface->visual = NULL;
surface->image = EGL_NO_IMAGE_KHR;
surface->saved_texture = 0;
surface->x = x;
surface->y = y;
surface->width = width;
surface->height = height;
surface->transform = NULL;
return surface;
}
WL_EXPORT void
wlsc_surface_damage_rectangle(struct wlsc_surface *surface,
int32_t x, int32_t y,
int32_t width, int32_t height)
{
struct wlsc_compositor *compositor = surface->compositor;
pixman_region32_union_rect(&compositor->damage_region,
&compositor->damage_region,
surface->x + x, surface->y + y,
width, height);
wlsc_compositor_schedule_repaint(compositor);
}
WL_EXPORT void
wlsc_surface_damage(struct wlsc_surface *surface)
{
wlsc_surface_damage_rectangle(surface, 0, 0,
surface->width, surface->height);
}
WL_EXPORT uint32_t
wlsc_compositor_get_time(void)
{
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec * 1000 + tv.tv_usec / 1000;
}
static void
destroy_surface(struct wl_resource *resource, struct wl_client *client)
{
struct wlsc_surface *surface =
container_of(resource, struct wlsc_surface, surface.resource);
struct wl_listener *l, *next;
struct wlsc_compositor *compositor = surface->compositor;
uint32_t time;
wlsc_surface_damage(surface);
wl_list_remove(&surface->link);
if (surface->saved_texture == 0)
glDeleteTextures(1, &surface->texture);
else
glDeleteTextures(1, &surface->saved_texture);
if (surface->image != EGL_NO_IMAGE_KHR)
compositor->destroy_image(compositor->display,
surface->image);
wl_list_remove(&surface->buffer_link);
time = wlsc_compositor_get_time();
wl_list_for_each_safe(l, next,
&surface->surface.destroy_listener_list, link)
l->func(l, &surface->surface, time);
free(surface);
}
static void
wlsc_buffer_attach(struct wl_buffer *buffer, struct wl_surface *surface)
{
struct wlsc_surface *es = (struct wlsc_surface *) surface;
struct wlsc_compositor *ec = es->compositor;
struct wl_list *surfaces_attached_to;
if (es->saved_texture != 0)
es->texture = es->saved_texture;
glBindTexture(GL_TEXTURE_2D, es->texture);
if (wl_buffer_is_shm(buffer)) {
/* Unbind any EGLImage texture that may be bound, so we don't
* overwrite it.*/
glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
0, 0, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, NULL);
es->pitch = wl_shm_buffer_get_stride(buffer) / 4;
glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
es->pitch, buffer->height, 0,
GL_BGRA_EXT, GL_UNSIGNED_BYTE,
wl_shm_buffer_get_data(buffer));
es->visual = buffer->visual;
surfaces_attached_to = buffer->user_data;
wl_list_remove(&es->buffer_link);
wl_list_insert(surfaces_attached_to, &es->buffer_link);
} else {
es->image = ec->create_image(ec->display, NULL,
EGL_WAYLAND_BUFFER_WL,
buffer, NULL);
ec->image_target_texture_2d(GL_TEXTURE_2D, es->image);
es->visual = buffer->visual;
es->pitch = es->width;
}
}
static void
wlsc_sprite_attach(struct wlsc_sprite *sprite, struct wl_surface *surface)
{
struct wlsc_surface *es = (struct wlsc_surface *) surface;
struct wlsc_compositor *ec = es->compositor;
es->pitch = es->width;
es->image = sprite->image;
if (sprite->image != EGL_NO_IMAGE_KHR) {
glBindTexture(GL_TEXTURE_2D, es->texture);
ec->image_target_texture_2d(GL_TEXTURE_2D, es->image);
} else {
if (es->saved_texture == 0)
es->saved_texture = es->texture;
es->texture = sprite->texture;
}
es->visual = sprite->visual;
}
enum sprite_usage {
SPRITE_USE_CURSOR = (1 << 0),
};
static struct wlsc_sprite *
create_sprite_from_png(struct wlsc_compositor *ec,
const char *filename, uint32_t usage)
{
uint32_t *pixels;
struct wlsc_sprite *sprite;
int32_t width, height;
uint32_t stride;
pixels = wlsc_load_image(filename, &width, &height, &stride);
if (pixels == NULL)
return NULL;
sprite = malloc(sizeof *sprite);
if (sprite == NULL) {
free(pixels);
return NULL;
}
sprite->visual = &ec->compositor.premultiplied_argb_visual;
sprite->width = width;
sprite->height = height;
sprite->image = EGL_NO_IMAGE_KHR;
if (usage & SPRITE_USE_CURSOR && ec->create_cursor_image != NULL)
sprite->image = ec->create_cursor_image(ec, width, height);
glGenTextures(1, &sprite->texture);
glBindTexture(GL_TEXTURE_2D, sprite->texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
if (sprite->image != EGL_NO_IMAGE_KHR) {
ec->image_target_texture_2d(GL_TEXTURE_2D, sprite->image);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height,
GL_BGRA_EXT, GL_UNSIGNED_BYTE, pixels);
} else {
glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT, width, height, 0,
GL_BGRA_EXT, GL_UNSIGNED_BYTE, pixels);
}
free(pixels);
return sprite;
}
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 }
};
static void
create_pointer_images(struct wlsc_compositor *ec)
{
int i, count;
count = ARRAY_LENGTH(pointer_images);
ec->pointer_sprites = malloc(count * sizeof *ec->pointer_sprites);
for (i = 0; i < count; i++) {
ec->pointer_sprites[i] =
create_sprite_from_png(ec,
pointer_images[i].filename,
SPRITE_USE_CURSOR);
}
}
static struct wlsc_surface *
background_create(struct wlsc_output *output, const char *filename)
{
struct wlsc_surface *background;
struct wlsc_sprite *sprite;
background = wlsc_surface_create(output->compositor,
output->x, output->y,
output->width, output->height);
if (background == NULL)
return NULL;
sprite = create_sprite_from_png(output->compositor, filename, 0);
if (sprite == NULL) {
free(background);
return NULL;
}
wlsc_sprite_attach(sprite, &background->surface);
return background;
}
static int
texture_region(struct wlsc_surface *es, pixman_region32_t *region)
{
struct wlsc_compositor *ec = es->compositor;
GLfloat *v, inv_width, inv_height;
pixman_box32_t *rectangles;
unsigned int *p;
int i, n;
rectangles = pixman_region32_rectangles(region, &n);
v = wl_array_add(&ec->vertices, n * 16 * sizeof *v);
p = wl_array_add(&ec->indices, n * 6 * sizeof *p);
inv_width = 1.0 / es->pitch;
inv_height = 1.0 / es->height;
for (i = 0; i < n; i++, v += 16, p += 6) {
v[ 0] = rectangles[i].x1;
v[ 1] = rectangles[i].y1;
v[ 2] = (GLfloat) (rectangles[i].x1 - es->x) * inv_width;
v[ 3] = (GLfloat) (rectangles[i].y1 - es->y) * inv_height;
v[ 4] = rectangles[i].x1;
v[ 5] = rectangles[i].y2;
v[ 6] = v[ 2];
v[ 7] = (GLfloat) (rectangles[i].y2 - es->y) * inv_height;
v[ 8] = rectangles[i].x2;
v[ 9] = rectangles[i].y1;
v[10] = (GLfloat) (rectangles[i].x2 - es->x) * inv_width;
v[11] = v[ 3];
v[12] = rectangles[i].x2;
v[13] = rectangles[i].y2;
v[14] = v[10];
v[15] = v[ 7];
p[0] = i * 4 + 0;
p[1] = i * 4 + 1;
p[2] = i * 4 + 2;
p[3] = i * 4 + 2;
p[4] = i * 4 + 1;
p[5] = i * 4 + 3;
}
return n;
}
static void
transform_vertex(struct wlsc_surface *surface,
GLfloat x, GLfloat y, GLfloat u, GLfloat v, GLfloat *r)
{
struct wlsc_vector t;
t.f[0] = x;
t.f[1] = y;
t.f[2] = 0.0;
t.f[3] = 1.0;
wlsc_matrix_transform(&surface->transform->matrix, &t);
r[ 0] = t.f[0];
r[ 1] = t.f[1];
r[ 2] = u;
r[ 3] = v;
}
static int
texture_transformed_surface(struct wlsc_surface *es)
{
struct wlsc_compositor *ec = es->compositor;
GLfloat *v;
unsigned int *p;
v = wl_array_add(&ec->vertices, 16 * sizeof *v);
p = wl_array_add(&ec->indices, 6 * sizeof *p);
transform_vertex(es, es->x, es->y, 0.0, 0.0, &v[0]);
transform_vertex(es, es->x, es->y + es->height, 0.0, 1.0, &v[4]);
transform_vertex(es, es->x + es->width, es->y, 1.0, 0.0, &v[8]);
transform_vertex(es, es->x + es->width, es->y + es->height,
1.0, 1.0, &v[12]);
p[0] = 0;
p[1] = 1;
p[2] = 2;
p[3] = 2;
p[4] = 1;
p[5] = 3;
return 1;
}
static void
wlsc_surface_draw(struct wlsc_surface *es,
struct wlsc_output *output, pixman_region32_t *clip)
{
struct wlsc_compositor *ec = es->compositor;
GLfloat *v;
pixman_region32_t repaint;
int n;
pixman_region32_init_rect(&repaint,
es->x, es->y, es->width, es->height);
pixman_region32_intersect(&repaint, &repaint, clip);
if (!pixman_region32_not_empty(&repaint))
return;
if (es->visual == &ec->compositor.argb_visual) {
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
} else if (es->visual == &ec->compositor.premultiplied_argb_visual) {
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
} else {
glDisable(GL_BLEND);
}
if (es->transform == NULL)
n = texture_region(es, &repaint);
else
n = texture_transformed_surface(es);
glBindTexture(GL_TEXTURE_2D, es->texture);
v = ec->vertices.data;
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[0]);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4 * sizeof *v, &v[2]);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
glDrawElements(GL_TRIANGLES, n * 6, GL_UNSIGNED_INT, ec->indices.data);
ec->vertices.size = 0;
ec->indices.size = 0;
pixman_region32_fini(&repaint);
}
static void
wlsc_surface_raise(struct wlsc_surface *surface)
{
struct wlsc_compositor *compositor = surface->compositor;
wl_list_remove(&surface->link);
wl_list_insert(&compositor->surface_list, &surface->link);
}
WL_EXPORT void
wlsc_compositor_damage_all(struct wlsc_compositor *compositor)
{
struct wlsc_output *output;
wl_list_for_each(output, &compositor->output_list, link)
wlsc_output_damage(output);
}
WL_EXPORT void
wlsc_output_finish_frame(struct wlsc_output *output, int msecs)
{
struct wlsc_compositor *compositor = output->compositor;
struct wlsc_surface *es;
struct wlsc_animation *animation, *next;
wl_list_for_each(es, &compositor->surface_list, link) {
if (es->output == output) {
wl_display_post_frame(compositor->wl_display,
&es->surface, msecs);
}
}
output->finished = 1;
wl_event_source_timer_update(compositor->timer_source, 5);
compositor->repaint_on_timeout = 1;
wl_list_for_each_safe(animation, next,
&compositor->animation_list, link)
animation->frame(animation, output, msecs);
}
WL_EXPORT void
wlsc_output_damage(struct wlsc_output *output)
{
struct wlsc_compositor *compositor = output->compositor;
pixman_region32_union_rect(&compositor->damage_region,
&compositor->damage_region,
output->x, output->y,
output->width, output->height);
wlsc_compositor_schedule_repaint(compositor);
}
static void
fade_frame(struct wlsc_animation *animation,
struct wlsc_output *output, uint32_t msecs)
{
struct wlsc_compositor *compositor =
container_of(animation,
struct wlsc_compositor, fade.animation);
wlsc_spring_update(&compositor->fade.spring, msecs);
if (wlsc_spring_done(&compositor->fade.spring)) {
if (compositor->fade.spring.current > 0.999) {
compositor->state = WLSC_COMPOSITOR_SLEEPING;
compositor->shell->lock(compositor->shell);
}
compositor->fade.spring.current =
compositor->fade.spring.target;
wl_list_remove(&animation->link);
wl_list_init(&animation->link);
}
wlsc_output_damage(output);
}
static void
fade_output(struct wlsc_output *output,
GLfloat tint, pixman_region32_t *region)
{
struct wlsc_compositor *compositor = output->compositor;
struct wlsc_surface surface;
GLfloat color[4] = { 0.0, 0.0, 0.0, tint };
surface.compositor = compositor;
surface.x = output->x;
surface.y = output->y;
surface.width = output->width;
surface.height = output->height;
surface.texture = GL_NONE;
surface.transform = NULL;
if (tint <= 1.0)
surface.visual =
&compositor->compositor.premultiplied_argb_visual;
else
surface.visual = &compositor->compositor.rgb_visual;
glUseProgram(compositor->solid_shader.program);
glUniformMatrix4fv(compositor->solid_shader.proj_uniform,
1, GL_FALSE, output->matrix.d);
glUniform4fv(compositor->solid_shader.color_uniform, 1, color);
wlsc_surface_draw(&surface, output, region);
}
static void
wlsc_output_repaint(struct wlsc_output *output)
{
struct wlsc_compositor *ec = output->compositor;
struct wlsc_surface *es;
struct wlsc_input_device *eid, *hw_cursor;
pixman_region32_t new_damage, total_damage;
output->prepare_render(output);
glViewport(0, 0, output->width, output->height);
glUseProgram(ec->texture_shader.program);
glUniformMatrix4fv(ec->texture_shader.proj_uniform,
1, GL_FALSE, output->matrix.d);
glUniform1i(ec->texture_shader.tex_uniform, 0);
pixman_region32_init(&new_damage);
pixman_region32_init(&total_damage);
pixman_region32_intersect_rect(&new_damage,
&ec->damage_region,
output->x, output->y,
output->width, output->height);
pixman_region32_subtract(&ec->damage_region,
&ec->damage_region, &new_damage);
pixman_region32_union(&total_damage, &new_damage,
&output->previous_damage_region);
pixman_region32_copy(&output->previous_damage_region, &new_damage);
hw_cursor = NULL;
if (ec->focus && ec->fade.spring.current < 0.001) {
hw_cursor = (struct wlsc_input_device *) ec->input_device;
if (output->set_hardware_cursor(output, hw_cursor) < 0)
hw_cursor = NULL;
} else {
output->set_hardware_cursor(output, NULL);
}
es = container_of(ec->surface_list.next, struct wlsc_surface, link);
if (es->visual == &ec->compositor.rgb_visual && hw_cursor) {
if (output->prepare_scanout_surface(output, es) == 0) {
/* We're drawing nothing now,
* draw the damaged regions later. */
pixman_region32_union(&ec->damage_region,
&ec->damage_region,
&total_damage);
return;
}
}
if (es->fullscreen_output == output) {
if (es->width < output->width ||
es->height < output->height)
glClear(GL_COLOR_BUFFER_BIT);
wlsc_surface_draw(es, output, &total_damage);
} else {
if (output->background)
wlsc_surface_draw(output->background,
output, &total_damage);
else
fade_output(output, 1.0, &total_damage);
glUseProgram(ec->texture_shader.program);
wl_list_for_each_reverse(es, &ec->surface_list, link) {
if (ec->overlay == es)
continue;
wlsc_surface_draw(es, output, &total_damage);
}
}
if (ec->overlay)
wlsc_surface_draw(ec->overlay, output, &total_damage);
if (ec->focus)
wl_list_for_each(eid, &ec->input_device_list, link) {
if (&eid->input_device != ec->input_device ||
eid != hw_cursor)
wlsc_surface_draw(eid->sprite, output,
&total_damage);
}
if (ec->fade.spring.current > 0.001)
fade_output(output, ec->fade.spring.current, &total_damage);
}
static int
repaint(void *data)
{
struct wlsc_compositor *ec = data;
struct wlsc_output *output;
int repainted_all_outputs = 1;
wl_list_for_each(output, &ec->output_list, link) {
if (!output->repaint_needed)
continue;
if (!output->finished) {
repainted_all_outputs = 0;
continue;
}
wlsc_output_repaint(output);
output->finished = 0;
output->repaint_needed = 0;
output->present(output);
}
if (repainted_all_outputs)
ec->repaint_on_timeout = 0;
else
wl_event_source_timer_update(ec->timer_source, 1);
return 1;
}
WL_EXPORT void
wlsc_compositor_schedule_repaint(struct wlsc_compositor *compositor)
{
struct wlsc_output *output;
if (compositor->state == WLSC_COMPOSITOR_SLEEPING)
return;
wl_list_for_each(output, &compositor->output_list, link)
output->repaint_needed = 1;
if (compositor->repaint_on_timeout)
return;
wl_event_source_timer_update(compositor->timer_source, 1);
compositor->repaint_on_timeout = 1;
}
WL_EXPORT void
wlsc_compositor_fade(struct wlsc_compositor *compositor, float tint)
{
int done;
done = wlsc_spring_done(&compositor->fade.spring);
compositor->fade.spring.target = tint;
if (wlsc_spring_done(&compositor->fade.spring))
return;
if (done)
compositor->fade.spring.timestamp =
wlsc_compositor_get_time();
wlsc_compositor_damage_all(compositor);
if (wl_list_empty(&compositor->fade.animation.link))
wl_list_insert(compositor->animation_list.prev,
&compositor->fade.animation.link);
}
static void
surface_destroy(struct wl_client *client,
struct wl_surface *surface)
{
wl_resource_destroy(&surface->resource, client);
}
WL_EXPORT void
wlsc_surface_assign_output(struct wlsc_surface *es)
{
struct wlsc_compositor *ec = es->compositor;
struct wlsc_output *output;
struct wlsc_output *tmp = es->output;
es->output = NULL;
wl_list_for_each(output, &ec->output_list, link) {
if (output->x < es->x && es->x < output->x + output->width &&
output->y < es->y && es->y < output->y + output->height) {
if (output != tmp)
printf("assiging surface %p to output %p\n",
es, output);
es->output = output;
}
}
if (es->output == NULL) {
printf("no output found\n");
es->output = container_of(ec->output_list.next,
struct wlsc_output, link);
}
}
static void
surface_attach(struct wl_client *client,
struct wl_surface *surface, struct wl_buffer *buffer,
int32_t x, int32_t y)
{
struct wlsc_surface *es = (struct wlsc_surface *) surface;
/* FIXME: This damages the entire old surface, but we should
* really just damage the part that's no longer covered by the
* surface. Anything covered by the new surface will be
* damaged by the client. */
wlsc_surface_damage(es);
wlsc_buffer_attach(buffer, surface);
switch (es->map_type) {
case WLSC_SURFACE_MAP_FULLSCREEN:
es->x = (es->fullscreen_output->width - es->width) / 2;
es->y = (es->fullscreen_output->height - es->height) / 2;
break;
default:
es->x += x;
es->y += y;
break;
}
es->width = buffer->width;
es->height = buffer->height;
if (x != 0 || y != 0)
wlsc_surface_assign_output(es);
es->compositor->shell->attach(es->compositor->shell, es);
}
static void
surface_map_toplevel(struct wl_client *client,
struct wl_surface *surface)
{
struct wlsc_surface *es = (struct wlsc_surface *) surface;
struct wlsc_compositor *ec = es->compositor;
switch (es->map_type) {
case WLSC_SURFACE_MAP_UNMAPPED:
es->x = 10 + random() % 400;
es->y = 10 + random() % 400;
/* assign to first output */
es->output = container_of(ec->output_list.next,
struct wlsc_output, link);
wl_list_insert(&es->compositor->surface_list, &es->link);
break;
case WLSC_SURFACE_MAP_TOPLEVEL:
return;
case WLSC_SURFACE_MAP_FULLSCREEN:
es->fullscreen_output = NULL;
es->x = es->saved_x;
es->y = es->saved_y;
break;
default:
break;
}
wlsc_surface_damage(es);
es->map_type = WLSC_SURFACE_MAP_TOPLEVEL;
}
static void
surface_map_transient(struct wl_client *client,
struct wl_surface *surface, struct wl_surface *parent,
int x, int y, uint32_t flags)
{
struct wlsc_surface *es = (struct wlsc_surface *) surface;
struct wlsc_surface *pes = (struct wlsc_surface *) parent;
switch (es->map_type) {
case WLSC_SURFACE_MAP_UNMAPPED:
wl_list_insert(&es->compositor->surface_list, &es->link);
/* assign to parents output */
es->output = pes->output;
break;
case WLSC_SURFACE_MAP_FULLSCREEN:
es->fullscreen_output = NULL;
break;
default:
break;
}
es->x = pes->x + x;
es->y = pes->y + y;
wlsc_surface_damage(es);
es->map_type = WLSC_SURFACE_MAP_TRANSIENT;
}
static void
surface_map_fullscreen(struct wl_client *client, struct wl_surface *surface)
{
struct wlsc_surface *es = (struct wlsc_surface *) surface;
struct wlsc_output *output;
/* FIXME: Fullscreen on first output */
/* FIXME: Handle output going away */
output = container_of(es->compositor->output_list.next,
struct wlsc_output, link);
switch (es->map_type) {
case WLSC_SURFACE_MAP_UNMAPPED:
es->x = 10 + random() % 400;
es->y = 10 + random() % 400;
/* assign to first output */
es->output = output;
wl_list_insert(&es->compositor->surface_list, &es->link);
break;
case WLSC_SURFACE_MAP_FULLSCREEN:
return;
default:
break;
}
es->saved_x = es->x;
es->saved_y = es->y;
es->x = (output->width - es->width) / 2;
es->y = (output->height - es->height) / 2;
es->fullscreen_output = output;
wlsc_surface_damage(es);
es->map_type = WLSC_SURFACE_MAP_FULLSCREEN;
}
static void
surface_damage(struct wl_client *client,
struct wl_surface *surface,
int32_t x, int32_t y, int32_t width, int32_t height)
{
struct wlsc_surface *es = (struct wlsc_surface *) surface;
wlsc_surface_damage_rectangle(es, x, y, width, height);
}
const static struct wl_surface_interface surface_interface = {
surface_destroy,
surface_attach,
surface_map_toplevel,
surface_map_transient,
surface_map_fullscreen,
surface_damage
};
static void
wlsc_input_device_attach(struct wlsc_input_device *device,
int x, int y, int width, int height)
{
wlsc_surface_damage(device->sprite);
device->hotspot_x = x;
device->hotspot_y = y;
device->sprite->x = device->input_device.x - device->hotspot_x;
device->sprite->y = device->input_device.y - device->hotspot_y;
device->sprite->width = width;
device->sprite->height = height;
wlsc_surface_damage(device->sprite);
}
static void
wlsc_input_device_attach_buffer(struct wlsc_input_device *device,
struct wl_buffer *buffer, int x, int y)
{
wlsc_buffer_attach(buffer, &device->sprite->surface);
wlsc_input_device_attach(device, x, y, buffer->width, buffer->height);
}
static void
wlsc_input_device_attach_sprite(struct wlsc_input_device *device,
struct wlsc_sprite *sprite, int x, int y)
{
wlsc_sprite_attach(sprite, &device->sprite->surface);
wlsc_input_device_attach(device, x, y, sprite->width, sprite->height);
}
WL_EXPORT void
wlsc_input_device_set_pointer_image(struct wlsc_input_device *device,
enum wlsc_pointer_type type)
{
struct wlsc_compositor *compositor =
(struct wlsc_compositor *) device->input_device.compositor;
wlsc_input_device_attach_sprite(device,
compositor->pointer_sprites[type],
pointer_images[type].hotspot_x,
pointer_images[type].hotspot_y);
}
static void
compositor_create_surface(struct wl_client *client,
struct wl_compositor *compositor, uint32_t id)
{
struct wlsc_compositor *ec = (struct wlsc_compositor *) compositor;
struct wlsc_surface *surface;
surface = wlsc_surface_create(ec, 0, 0, 0, 0);
if (surface == NULL) {
wl_client_post_no_memory(client);
return;
}
surface->surface.resource.destroy = destroy_surface;
surface->surface.resource.object.id = id;
surface->surface.resource.object.interface = &wl_surface_interface;
surface->surface.resource.object.implementation =
(void (**)(void)) &surface_interface;
surface->surface.client = client;
wl_client_add_resource(client, &surface->surface.resource);
}
const static struct wl_compositor_interface compositor_interface = {
compositor_create_surface,
};
static void
wlsc_surface_transform(struct wlsc_surface *surface,
int32_t x, int32_t y, int32_t *sx, int32_t *sy)
{
*sx = x - surface->x;
*sy = y - surface->y;
}
WL_EXPORT struct wlsc_surface *
pick_surface(struct wl_input_device *device, int32_t *sx, int32_t *sy)
{
struct wlsc_compositor *ec =
(struct wlsc_compositor *) device->compositor;
struct wlsc_surface *es;
wl_list_for_each(es, &ec->surface_list, link) {
wlsc_surface_transform(es, device->x, device->y, sx, sy);
if (0 <= *sx && *sx < es->width &&
0 <= *sy && *sy < es->height)
return es;
}
return NULL;
}
static void
motion_grab_motion(struct wl_grab *grab,
uint32_t time, int32_t x, int32_t y)
{
struct wlsc_input_device *device =
(struct wlsc_input_device *) grab->input_device;
struct wlsc_surface *es =
(struct wlsc_surface *) device->input_device.pointer_focus;
int32_t sx, sy;
wlsc_surface_transform(es, x, y, &sx, &sy);
wl_client_post_event(es->surface.client,
&device->input_device.object,
WL_INPUT_DEVICE_MOTION,
time, x, y, sx, sy);
}
static void
motion_grab_button(struct wl_grab *grab,
uint32_t time, int32_t button, int32_t state)
{
wl_client_post_event(grab->input_device->pointer_focus->client,
&grab->input_device->object,
WL_INPUT_DEVICE_BUTTON,
time, button, state);
}
static void
motion_grab_end(struct wl_grab *grab, uint32_t time)
{
}
static const struct wl_grab_interface motion_grab_interface = {
motion_grab_motion,
motion_grab_button,
motion_grab_end
};
WL_EXPORT void
wlsc_compositor_wake(struct wlsc_compositor *compositor)
{
if (compositor->idle_inhibit)
return;
wlsc_compositor_fade(compositor, 0.0);
compositor->state = WLSC_COMPOSITOR_ACTIVE;
wl_event_source_timer_update(compositor->idle_source,
option_idle_time * 1000);
}
static void
wlsc_compositor_idle_inhibit(struct wlsc_compositor *compositor)
{
wlsc_compositor_wake(compositor);
compositor->idle_inhibit++;
}
static void
wlsc_compositor_idle_release(struct wlsc_compositor *compositor)
{
compositor->idle_inhibit--;
wlsc_compositor_wake(compositor);
}
static int
idle_handler(void *data)
{
struct wlsc_compositor *compositor = data;
if (compositor->idle_inhibit)
return 1;
wlsc_compositor_fade(compositor, 1.0);
return 1;
}
WL_EXPORT void
notify_motion(struct wl_input_device *device, uint32_t time, int x, int y)
{
struct wlsc_surface *es;
struct wlsc_compositor *ec =
(struct wlsc_compositor *) device->compositor;
struct wlsc_output *output;
const struct wl_grab_interface *interface;
struct wlsc_input_device *wd = (struct wlsc_input_device *) device;
int32_t sx, sy;
int x_valid = 0, y_valid = 0;
int min_x = INT_MAX, min_y = INT_MAX, max_x = INT_MIN, max_y = INT_MIN;
wlsc_compositor_wake(ec);
wl_list_for_each(output, &ec->output_list, link) {
if (output->x <= x && x <= output->x + output->width)
x_valid = 1;
if (output->y <= y && y <= output->y + output->height)
y_valid = 1;
/* FIXME: calculate this only on output addition/deletion */
if (output->x < min_x)
min_x = output->x;
if (output->y < min_y)
min_y = output->y;
if (output->x + output->width > max_x)
max_x = output->x + output->width;
if (output->y + output->height > max_y)
max_y = output->y + output->height;
}
if (!x_valid) {
if (x < min_x)
x = min_x;
else if (x >= max_x)
x = max_x;
}
if (!y_valid) {
if (y < min_y)
y = min_y;
else if (y >= max_y)
y = max_y;
}
device->x = x;
device->y = y;
if (device->grab) {
interface = device->grab->interface;
interface->motion(device->grab, time, x, y);
} else {
es = pick_surface(device, &sx, &sy);
wl_input_device_set_pointer_focus(device,
&es->surface,
time, x, y, sx, sy);
if (es)
wl_client_post_event(es->surface.client,
&device->object,
WL_INPUT_DEVICE_MOTION,
time, x, y, sx, sy);
}
wlsc_surface_damage(wd->sprite);
wd->sprite->x = device->x - wd->hotspot_x;
wd->sprite->y = device->y - wd->hotspot_y;
wlsc_surface_damage(wd->sprite);
}
WL_EXPORT void
wlsc_surface_activate(struct wlsc_surface *surface,
struct wlsc_input_device *device, uint32_t time)
{
struct wlsc_shell *shell = surface->compositor->shell;
wlsc_surface_raise(surface);
if (device->selection)
shell->set_selection_focus(shell,
device->selection,
&surface->surface, time);
wl_input_device_set_keyboard_focus(&device->input_device,
&surface->surface,
time);
}
struct wlsc_binding {
uint32_t key;
uint32_t button;
uint32_t modifier;
wlsc_binding_handler_t handler;
void *data;
struct wl_list link;
};
WL_EXPORT void
notify_button(struct wl_input_device *device,
uint32_t time, int32_t button, int32_t state)
{
struct wlsc_input_device *wd = (struct wlsc_input_device *) device;
struct wlsc_compositor *compositor =
(struct wlsc_compositor *) device->compositor;
struct wlsc_binding *b;
struct wlsc_surface *surface =
(struct wlsc_surface *) device->pointer_focus;
if (state)
wlsc_compositor_idle_inhibit(compositor);
else
wlsc_compositor_idle_release(compositor);
if (state && surface && device->grab == NULL) {
wlsc_surface_activate(surface, wd, time);
wl_input_device_start_grab(device,
&device->motion_grab,
button, time);
}
wl_list_for_each(b, &compositor->binding_list, link) {
if (b->button == button &&
b->modifier == wd->modifier_state && state) {
b->handler(&wd->input_device,
time, 0, button, state, b->data);
break;
}
}
if (device->grab)
device->grab->interface->button(device->grab, time,
button, state);
if (!state && device->grab && device->grab_button == button)
wl_input_device_end_grab(device, time);
}
static void
terminate_binding(struct wl_input_device *device, uint32_t time,
uint32_t key, uint32_t button, uint32_t state, void *data)
{
struct wlsc_compositor *compositor = data;
if (state)
wl_display_terminate(compositor->wl_display);
}
WL_EXPORT struct wlsc_binding *
wlsc_compositor_add_binding(struct wlsc_compositor *compositor,
uint32_t key, uint32_t button, uint32_t modifier,
wlsc_binding_handler_t handler, void *data)
{
struct wlsc_binding *binding;
binding = malloc(sizeof *binding);
if (binding == NULL)
return NULL;
binding->key = key;
binding->button = button;
binding->modifier = modifier;
binding->handler = handler;
binding->data = data;
wl_list_insert(compositor->binding_list.prev, &binding->link);
return binding;
}
WL_EXPORT void
wlsc_binding_destroy(struct wlsc_binding *binding)
{
wl_list_remove(&binding->link);
free(binding);
}
static void
update_modifier_state(struct wlsc_input_device *device,
uint32_t key, uint32_t state)
{
uint32_t modifier;
switch (key) {
case KEY_LEFTCTRL:
case KEY_RIGHTCTRL:
modifier = MODIFIER_CTRL;
break;
case KEY_LEFTALT:
case KEY_RIGHTALT:
modifier = MODIFIER_ALT;
break;
case KEY_LEFTMETA:
case KEY_RIGHTMETA:
modifier = MODIFIER_SUPER;
break;
default:
modifier = 0;
break;
}
if (state)
device->modifier_state |= modifier;
else
device->modifier_state &= ~modifier;
}
WL_EXPORT void
notify_key(struct wl_input_device *device,
uint32_t time, uint32_t key, uint32_t state)
{
struct wlsc_input_device *wd = (struct wlsc_input_device *) device;
struct wlsc_compositor *compositor =
(struct wlsc_compositor *) device->compositor;
uint32_t *k, *end;
struct wlsc_binding *b;
if (state)
wlsc_compositor_idle_inhibit(compositor);
else
wlsc_compositor_idle_release(compositor);
wl_list_for_each(b, &compositor->binding_list, link) {
if (b->key == key &&
b->modifier == wd->modifier_state) {
b->handler(&wd->input_device,
time, key, 0, state, b->data);
break;
}
}
update_modifier_state(wd, key, state);
end = device->keys.data + device->keys.size;
for (k = device->keys.data; k < end; k++) {
if (*k == key)
*k = *--end;
}
device->keys.size = (void *) end - device->keys.data;
if (state) {
k = wl_array_add(&device->keys, sizeof *k);
*k = key;
}
if (device->keyboard_focus != NULL)
wl_client_post_event(device->keyboard_focus->client,
&device->object,
WL_INPUT_DEVICE_KEY, time, key, state);
}
WL_EXPORT void
notify_pointer_focus(struct wl_input_device *device,
uint32_t time, struct wlsc_output *output,
int32_t x, int32_t y)
{
struct wlsc_input_device *wd = (struct wlsc_input_device *) device;
struct wlsc_compositor *compositor =
(struct wlsc_compositor *) device->compositor;
struct wlsc_surface *es;
int32_t sx, sy;
if (output) {
device->x = x;
device->y = y;
es = pick_surface(device, &sx, &sy);
wl_input_device_set_pointer_focus(device,
&es->surface,
time, x, y, sx, sy);
compositor->focus = 1;
wd->sprite->x = device->x - wd->hotspot_x;
wd->sprite->y = device->y - wd->hotspot_y;
} else {
wl_input_device_set_pointer_focus(device, NULL,
time, 0, 0, 0, 0);
compositor->focus = 0;
}
wlsc_surface_damage(wd->sprite);
}
WL_EXPORT void
notify_keyboard_focus(struct wl_input_device *device,
uint32_t time, struct wlsc_output *output,
struct wl_array *keys)
{
struct wlsc_input_device *wd =
(struct wlsc_input_device *) device;
struct wlsc_compositor *compositor =
(struct wlsc_compositor *) device->compositor;
struct wlsc_surface *es;
uint32_t *k, *end;
if (!wl_list_empty(&compositor->surface_list))
es = container_of(compositor->surface_list.next,
struct wlsc_surface, link);
else
es = NULL;
if (output) {
wl_array_copy(&wd->input_device.keys, keys);
wd->modifier_state = 0;
end = device->keys.data + device->keys.size;
for (k = device->keys.data; k < end; k++) {
wlsc_compositor_idle_inhibit(compositor);
update_modifier_state(wd, *k, 1);
}
wl_input_device_set_keyboard_focus(&wd->input_device,
&es->surface, time);
} else {
end = device->keys.data + device->keys.size;
for (k = device->keys.data; k < end; k++)
wlsc_compositor_idle_release(compositor);
wd->modifier_state = 0;
wl_input_device_set_keyboard_focus(&wd->input_device,
NULL, time);
}
}
static void
input_device_attach(struct wl_client *client,
struct wl_input_device *device_base,
uint32_t time,
struct wl_buffer *buffer, int32_t x, int32_t y)
{
struct wlsc_input_device *device =
(struct wlsc_input_device *) device_base;
if (time < device->input_device.pointer_focus_time)
return;
if (device->input_device.pointer_focus == NULL)
return;
if (device->input_device.pointer_focus->client != client)
return;
if (buffer == NULL) {
wlsc_input_device_set_pointer_image(device,
WLSC_POINTER_LEFT_PTR);
return;
}
wlsc_input_device_attach_buffer(device, buffer, x, y);
}
const static struct wl_input_device_interface input_device_interface = {
input_device_attach,
};
WL_EXPORT void
wlsc_input_device_init(struct wlsc_input_device *device,
struct wlsc_compositor *ec)
{
wl_input_device_init(&device->input_device, &ec->compositor);
device->input_device.object.interface = &wl_input_device_interface;
device->input_device.object.implementation =
(void (**)(void)) &input_device_interface;
wl_display_add_object(ec->wl_display, &device->input_device.object);
wl_display_add_global(ec->wl_display, &device->input_device.object, NULL);
device->sprite = wlsc_surface_create(ec,
device->input_device.x,
device->input_device.y, 32, 32);
device->hotspot_x = 16;
device->hotspot_y = 16;
device->modifier_state = 0;
device->input_device.motion_grab.interface = &motion_grab_interface;
wl_list_insert(ec->input_device_list.prev, &device->link);
wlsc_input_device_set_pointer_image(device, WLSC_POINTER_LEFT_PTR);
}
static void
wlsc_output_post_geometry(struct wl_client *client,
struct wl_object *global, uint32_t version)
{
struct wlsc_output *output =
container_of(global, struct wlsc_output, object);
wl_client_post_event(client, global,
WL_OUTPUT_GEOMETRY,
output->x, output->y,
output->width, output->height);
}
static const char vertex_shader[] =
"uniform mat4 proj;\n"
"attribute vec2 position;\n"
"attribute vec2 texcoord;\n"
"varying vec2 v_texcoord;\n"
"void main()\n"
"{\n"
" gl_Position = proj * vec4(position, 0.0, 1.0);\n"
" v_texcoord = texcoord;\n"
"}\n";
static const char texture_fragment_shader[] =
"precision mediump float;\n"
"varying vec2 v_texcoord;\n"
"uniform sampler2D tex;\n"
"void main()\n"
"{\n"
" gl_FragColor = texture2D(tex, v_texcoord)\n;"
"}\n";
static const char solid_fragment_shader[] =
"precision mediump float;\n"
"varying vec2 v_texcoord;\n"
"uniform vec4 color;\n"
"void main()\n"
"{\n"
" gl_FragColor = color\n;"
"}\n";
static int
compile_shader(GLenum type, const char *source)
{
GLuint s;
char msg[512];
GLint status;
s = glCreateShader(type);
glShaderSource(s, 1, &source, NULL);
glCompileShader(s);
glGetShaderiv(s, GL_COMPILE_STATUS, &status);
if (!status) {
glGetShaderInfoLog(s, sizeof msg, NULL, msg);
fprintf(stderr, "shader info: %s\n", msg);
return GL_NONE;
}
return s;
}
static int
wlsc_shader_init(struct wlsc_shader *shader,
const char *vertex_source, const char *fragment_source)
{
char msg[512];
GLint status;
shader->vertex_shader =
compile_shader(GL_VERTEX_SHADER, vertex_source);
shader->fragment_shader =
compile_shader(GL_FRAGMENT_SHADER, fragment_source);
shader->program = glCreateProgram();
glAttachShader(shader->program, shader->vertex_shader);
glAttachShader(shader->program, shader->fragment_shader);
glBindAttribLocation(shader->program, 0, "position");
glBindAttribLocation(shader->program, 1, "texcoord");
glLinkProgram(shader->program);
glGetProgramiv(shader->program, GL_LINK_STATUS, &status);
if (!status) {
glGetProgramInfoLog(shader->program, sizeof msg, NULL, msg);
fprintf(stderr, "link info: %s\n", msg);
return -1;
}
shader->proj_uniform = glGetUniformLocation(shader->program, "proj");
shader->tex_uniform = glGetUniformLocation(shader->program, "tex");
return 0;
}
static int
init_solid_shader(struct wlsc_shader *shader,
GLuint vertex_shader, const char *fragment_source)
{
GLint status;
char msg[512];
shader->vertex_shader = vertex_shader;
shader->fragment_shader =
compile_shader(GL_FRAGMENT_SHADER, fragment_source);
shader->program = glCreateProgram();
glAttachShader(shader->program, shader->vertex_shader);
glAttachShader(shader->program, shader->fragment_shader);
glBindAttribLocation(shader->program, 0, "position");
glBindAttribLocation(shader->program, 1, "texcoord");
glLinkProgram(shader->program);
glGetProgramiv(shader->program, GL_LINK_STATUS, &status);
if (!status) {
glGetProgramInfoLog(shader->program, sizeof msg, NULL, msg);
fprintf(stderr, "link info: %s\n", msg);
return -1;
}
shader->proj_uniform = glGetUniformLocation(shader->program, "proj");
shader->color_uniform = glGetUniformLocation(shader->program, "color");
return 0;
}
WL_EXPORT void
wlsc_output_destroy(struct wlsc_output *output)
{
destroy_surface(&output->background->surface.resource, NULL);
}
WL_EXPORT void
wlsc_output_move(struct wlsc_output *output, int x, int y)
{
struct wlsc_compositor *c = output->compositor;
int flip;
output->x = x;
output->y = y;
if (output->background) {
output->background->x = x;
output->background->y = y;
}
pixman_region32_init(&output->previous_damage_region);
wlsc_matrix_init(&output->matrix);
wlsc_matrix_translate(&output->matrix,
-output->x - output->width / 2.0,
-output->y - output->height / 2.0, 0);
flip = (output->flags & WL_OUTPUT_FLIPPED) ? -1 : 1;
wlsc_matrix_scale(&output->matrix,
2.0 / output->width,
flip * 2.0 / output->height, 1);
pixman_region32_union_rect(&c->damage_region,
&c->damage_region,
x, y, output->width, output->height);
}
WL_EXPORT void
wlsc_output_init(struct wlsc_output *output, struct wlsc_compositor *c,
int x, int y, int width, int height, uint32_t flags)
{
output->compositor = c;
output->x = x;
output->y = y;
output->width = width;
output->height = height;
output->background =
background_create(output, option_background);
output->flags = flags;
output->finished = 1;
wlsc_output_move(output, x, y);
output->object.interface = &wl_output_interface;
wl_display_add_object(c->wl_display, &output->object);
wl_display_add_global(c->wl_display, &output->object,
wlsc_output_post_geometry);
}
static void
shm_buffer_created(struct wl_buffer *buffer)
{
struct wl_list *surfaces_attached_to;
surfaces_attached_to = malloc(sizeof *surfaces_attached_to);
if (!surfaces_attached_to) {
buffer->user_data = NULL;
return;
}
wl_list_init(surfaces_attached_to);
buffer->user_data = surfaces_attached_to;
}
static void
shm_buffer_damaged(struct wl_buffer *buffer,
int32_t x, int32_t y, int32_t width, int32_t height)
{
struct wl_list *surfaces_attached_to = buffer->user_data;
struct wlsc_surface *es;
GLsizei tex_width = wl_shm_buffer_get_stride(buffer) / 4;
wl_list_for_each(es, surfaces_attached_to, buffer_link) {
glBindTexture(GL_TEXTURE_2D, es->texture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT,
tex_width, buffer->height, 0,
GL_BGRA_EXT, GL_UNSIGNED_BYTE,
wl_shm_buffer_get_data(buffer));
/* Hmm, should use glTexSubImage2D() here but GLES2 doesn't
* support any unpack attributes except GL_UNPACK_ALIGNMENT. */
}
}
static void
shm_buffer_destroyed(struct wl_buffer *buffer)
{
struct wl_list *surfaces_attached_to = buffer->user_data;
struct wlsc_surface *es, *next;
wl_list_for_each_safe(es, next, surfaces_attached_to, buffer_link) {
wl_list_remove(&es->buffer_link);
wl_list_init(&es->buffer_link);
}
free(surfaces_attached_to);
}
const static struct wl_shm_callbacks shm_callbacks = {
shm_buffer_created,
shm_buffer_damaged,
shm_buffer_destroyed
};
WL_EXPORT int
wlsc_compositor_init(struct wlsc_compositor *ec, struct wl_display *display)
{
struct wl_event_loop *loop;
const char *extensions;
ec->wl_display = display;
wl_compositor_init(&ec->compositor, &compositor_interface, display);
ec->shm = wl_shm_init(display, &shm_callbacks);
ec->image_target_texture_2d =
(void *) eglGetProcAddress("glEGLImageTargetTexture2DOES");
ec->image_target_renderbuffer_storage = (void *)
eglGetProcAddress("glEGLImageTargetRenderbufferStorageOES");
ec->create_image = (void *) eglGetProcAddress("eglCreateImageKHR");
ec->destroy_image = (void *) eglGetProcAddress("eglDestroyImageKHR");
ec->bind_display =
(void *) eglGetProcAddress("eglBindWaylandDisplayWL");
ec->unbind_display =
(void *) eglGetProcAddress("eglUnbindWaylandDisplayWL");
extensions = (const char *) glGetString(GL_EXTENSIONS);
if (!strstr(extensions, "GL_EXT_texture_format_BGRA8888")) {
fprintf(stderr,
"GL_EXT_texture_format_BGRA8888 not available\n");
return -1;
}
extensions =
(const char *) eglQueryString(ec->display, EGL_EXTENSIONS);
if (strstr(extensions, "EGL_WL_bind_wayland_display"))
ec->has_bind_display = 1;
if (ec->has_bind_display)
ec->bind_display(ec->display, ec->wl_display);
wl_list_init(&ec->surface_list);
wl_list_init(&ec->input_device_list);
wl_list_init(&ec->output_list);
wl_list_init(&ec->binding_list);
wl_list_init(&ec->animation_list);
wlsc_spring_init(&ec->fade.spring, 0.8, 0.0, 0.0);
ec->fade.animation.frame = fade_frame;
wl_list_init(&ec->fade.animation.link);
wlsc_compositor_add_binding(ec, KEY_BACKSPACE, 0,
MODIFIER_CTRL | MODIFIER_ALT,
terminate_binding, ec);
create_pointer_images(ec);
screenshooter_create(ec);
glActiveTexture(GL_TEXTURE0);
if (wlsc_shader_init(&ec->texture_shader,
vertex_shader, texture_fragment_shader) < 0)
return -1;
if (init_solid_shader(&ec->solid_shader,
ec->texture_shader.vertex_shader,
solid_fragment_shader) < 0)
return -1;
loop = wl_display_get_event_loop(ec->wl_display);
ec->idle_source = wl_event_loop_add_timer(loop, idle_handler, ec);
wl_event_source_timer_update(ec->idle_source, option_idle_time * 1000);
ec->timer_source = wl_event_loop_add_timer(loop, repaint, ec);
pixman_region32_init(&ec->damage_region);
wlsc_compositor_schedule_repaint(ec);
return 0;
}
static int on_term_signal(int signal_number, void *data)
{
struct wlsc_compositor *ec = data;
wl_display_terminate(ec->wl_display);
return 1;
}
static void *
load_module(const char *name, const char *entrypoint, void **handle)
{
char path[PATH_MAX];
void *module, *init;
if (name[0] != '/')
snprintf(path, sizeof path, MODULEDIR "/%s", name);
else
snprintf(path, sizeof path, name);
module = dlopen(path, RTLD_LAZY);
if (!module) {
fprintf(stderr,
"failed to load module: %s\n", dlerror());
return NULL;
}
init = dlsym(module, entrypoint);
if (!init) {
fprintf(stderr,
"failed to lookup init function: %s\n", dlerror());
return NULL;
}
return init;
}
int main(int argc, char *argv[])
{
struct wl_display *display;
struct wlsc_compositor *ec;
struct wl_event_loop *loop;
int o;
void *shell_module, *backend_module;
int (*shell_init)(struct wlsc_compositor *ec);
struct wlsc_compositor
*(*backend_init)(struct wl_display *display, char *options);
char *backend = NULL;
char *backend_options = "";
char *shell = NULL;
char *p;
static const char opts[] = "B:b:o:S:i:s:";
static const struct option longopts[ ] = {
{ "backend", 1, NULL, 'B' },
{ "backend-options", 1, NULL, 'o' },
{ "background", 1, NULL, 'b' },
{ "socket", 1, NULL, 'S' },
{ "idle-time", 1, NULL, 'i' },
{ "shell", 1, NULL, 's' },
{ NULL, }
};
while (o = getopt_long(argc, argv, opts, longopts, &o), o > 0) {
switch (o) {
case 'b':
option_background = optarg;
break;
case 'B':
backend = optarg;
break;
case 'o':
backend_options = optarg;
break;
case 'S':
option_socket_name = optarg;
break;
case 'i':
option_idle_time = strtol(optarg, &p, 0);
if (*p != '\0') {
fprintf(stderr,
"invalid idle time option: %s\n",
optarg);
exit(EXIT_FAILURE);
}
break;
case 's':
shell = optarg;
break;
}
}
display = wl_display_create();
ec = NULL;
if (!backend) {
if (getenv("WAYLAND_DISPLAY"))
backend = "wayland-backend.so";
else if (getenv("DISPLAY"))
backend = "x11-backend.so";
else if (getenv("OPENWFD"))
backend = "openwfd-backend.so";
else
backend = "drm-backend.so";
}
if (!shell)
shell = "desktop-shell.so";
backend_init = load_module(backend, "backend_init", &backend_module);
if (!backend_init)
exit(EXIT_FAILURE);
shell_init = load_module(shell, "shell_init", &shell_module);
if (!shell_init)
exit(EXIT_FAILURE);
ec = backend_init(display, backend_options);
if (ec == NULL) {
fprintf(stderr, "failed to create compositor\n");
exit(EXIT_FAILURE);
}
if (shell_init(ec) < 0)
exit(EXIT_FAILURE);
if (wl_display_add_socket(display, option_socket_name)) {
fprintf(stderr, "failed to add socket: %m\n");
exit(EXIT_FAILURE);
}
loop = wl_display_get_event_loop(ec->wl_display);
wl_event_loop_add_signal(loop, SIGTERM, on_term_signal, ec);
wl_event_loop_add_signal(loop, SIGINT, on_term_signal, ec);
wl_display_run(display);
if (ec->has_bind_display)
ec->unbind_display(ec->display, display);
wl_display_destroy(display);
ec->destroy(ec);
return 0;
}