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Add x11 backend for compositor

Browse source 
This still needs all the bells and whistles from the egl-kms mesa branch,
but it makes it a lot easier to work on wayland.
This commit is contained in:
Kristian Høgsberg 2010-06-14 11:54:00 -04:00
parent fc783d4071
commit ce5325d3ed
7 changed files with 901 additions and 184 deletions
Download patch file Download diff file Expand all files Collapse all files

1
Makefile
View file

@ -28,6 +28,7 @@ $(libs) :
compositor : \
compositor.o \
compositor-drm.o \
compositor-x11.o \
screenshooter.o \
cairo-util.o

262
compositor-drm.c
View file

@ -37,8 +37,43 @@
#include "wayland-protocol.h"
#include "compositor.h"
struct drm_compositor {
struct wlsc_compositor base;
struct udev *udev;
struct wl_event_source *drm_source;
int drm_fd;
struct wl_event_source *term_signal_source;
/* tty handling state */
int tty_fd;
uint32_t vt_active : 1;
struct termios terminal_attributes;
struct wl_event_source *tty_input_source;
struct wl_event_source *enter_vt_source;
struct wl_event_source *leave_vt_source;
};
struct drm_output {
struct wlsc_output base;
drmModeModeInfo mode;
uint32_t crtc_id;
uint32_t connector_id;
GLuint rbo[2];
uint32_t fb_id[2];
EGLImageKHR image[2];
uint32_t current;
};
struct drm_input {
struct wlsc_input_device base;
};
struct evdev_input_device {
struct wlsc_input_device *device;
struct drm_input *master;
struct wl_event_source *source;
int tool, new_x, new_y;
int base_x, base_y;
@ -47,16 +82,21 @@ struct evdev_input_device {
static void evdev_input_device_data(int fd, uint32_t mask, void *data)
{
struct drm_compositor *c;
struct evdev_input_device *device = data;
struct input_event ev[8], *e, *end;
int len, value, dx, dy, absolute_event;
int x, y;
c = (struct drm_compositor *) device->master->base.ec;
if (!c->vt_active)
return;
dx = 0;
dy = 0;
absolute_event = 0;
x = device->device->x;
y = device->device->y;
x = device->master->base.x;
y = device->master->base.y;
len = read(fd, &ev, sizeof ev);
if (len < 0 || len % sizeof e[0] != 0) {
@ -132,24 +172,26 @@ static void evdev_input_device_data(int fd, uint32_t mask, void *data)
case BTN_FORWARD:
case BTN_BACK:
case BTN_TASK:
notify_button(device->device, e->code, value);
notify_button(&device->master->base,
e->code, value);
break;
default:
notify_key(device->device, e->code, value);
notify_key(&device->master->base,
e->code, value);
break;
}
}
}
if (dx != 0 || dy != 0)
notify_motion(device->device, x + dx, y + dy);
notify_motion(&device->master->base, x + dx, y + dy);
if (absolute_event && device->tool)
notify_motion(device->device, x, y);
notify_motion(&device->master->base, x, y);
}
static struct evdev_input_device *
evdev_input_device_create(struct wlsc_input_device *master,
evdev_input_device_create(struct drm_input *master,
struct wl_display *display, const char *path)
{
struct evdev_input_device *device;
@ -162,7 +204,7 @@ evdev_input_device_create(struct wlsc_input_device *master,
device->tool = 1;
device->new_x = 1;
device->new_y = 1;
device->device = master;
device->master = master;
device->fd = open(path, O_RDONLY);
if (device->fd < 0) {
@ -184,13 +226,52 @@ evdev_input_device_create(struct wlsc_input_device *master,
return device;
}
void
wlsc_compositor_present_drm(struct wlsc_compositor *ec)
static void
drm_input_create(struct drm_compositor *c)
{
struct wlsc_output *output;
struct drm_input *input;
struct udev_enumerate *e;
struct udev_list_entry *entry;
struct udev_device *device;
const char *path;
wl_list_for_each(output, &ec->output_list, link) {
drmModePageFlip(ec->drm_fd, output->crtc_id,
input = malloc(sizeof *input);
if (input == NULL)
return;
memset(input, 0, sizeof *input);
wlsc_input_device_init(&input->base, &c->base);
e = udev_enumerate_new(c->udev);
udev_enumerate_add_match_subsystem(e, "input");
udev_enumerate_add_match_property(e, "WAYLAND_SEAT", "1");
udev_enumerate_scan_devices(e);
udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
path = udev_list_entry_get_name(entry);
device = udev_device_new_from_syspath(c->udev, path);
evdev_input_device_create(input, c->base.wl_display,
udev_device_get_devnode(device));
}
udev_enumerate_unref(e);
c->base.input_device = &input->base;
}
static void
drm_compositor_present(struct wlsc_compositor *ec)
{
struct drm_compositor *c = (struct drm_compositor *) ec;
struct drm_output *output;
wl_list_for_each(output, &ec->output_list, base.link) {
output->current ^= 1;
glFramebufferRenderbuffer(GL_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0,
GL_RENDERBUFFER,
output->rbo[output->current]);
drmModePageFlip(c->drm_fd, output->crtc_id,
output->fb_id[output->current ^ 1],
DRM_MODE_PAGE_FLIP_EVENT, output);
}
@ -220,9 +301,8 @@ on_drm_input(int fd, uint32_t mask, void *data)
}
static int
init_egl(struct wlsc_compositor *ec, struct udev_device *device)
init_egl(struct drm_compositor *ec, struct udev_device *device)
{
struct wl_event_loop *loop;
EGLint major, minor, count;
EGLConfig config;
PFNEGLGETTYPEDDISPLAYMESA get_typed_display_mesa;
@ -241,8 +321,8 @@ init_egl(struct wlsc_compositor *ec, struct udev_device *device)
return -1;
}
ec->base.device = strdup(udev_device_get_devnode(device));
ec->drm_fd = open(ec->base.device, O_RDWR);
ec->base.base.device = strdup(udev_device_get_devnode(device));
ec->drm_fd = open(ec->base.base.device, O_RDWR);
if (ec->drm_fd < 0) {
/* Probably permissions error */
fprintf(stderr, "couldn't open %s, skipping\n",
@ -250,41 +330,39 @@ init_egl(struct wlsc_compositor *ec, struct udev_device *device)
return -1;
}
ec->display = get_typed_display_mesa(EGL_DRM_DISPLAY_TYPE_MESA,
ec->base.display = get_typed_display_mesa(EGL_DRM_DISPLAY_TYPE_MESA,
(void *) ec->drm_fd);
if (ec->display == NULL) {
if (ec->base.display == NULL) {
fprintf(stderr, "failed to create display\n");
return -1;
}
if (!eglInitialize(ec->display, &major, &minor)) {
if (!eglInitialize(ec->base.display, &major, &minor)) {
fprintf(stderr, "failed to initialize display\n");
return -1;
}
if (!eglChooseConfig(ec->display, config_attribs, &config, 1, &count) ||
if (!eglChooseConfig(ec->base.display,
config_attribs, &config, 1, &count) ||
count == 0) {
fprintf(stderr, "eglChooseConfig() failed\n");
return -1;
}
eglBindAPI(EGL_OPENGL_API);
ec->context = eglCreateContext(ec->display, config, EGL_NO_CONTEXT, NULL);
if (ec->context == NULL) {
ec->base.context = eglCreateContext(ec->base.display,
config, EGL_NO_CONTEXT, NULL);
if (ec->base.context == NULL) {
fprintf(stderr, "failed to create context\n");
return -1;
}
if (!eglMakeCurrent(ec->display, EGL_NO_SURFACE, EGL_NO_SURFACE, ec->context)) {
if (!eglMakeCurrent(ec->base.display, EGL_NO_SURFACE,
EGL_NO_SURFACE, ec->base.context)) {
fprintf(stderr, "failed to make context current\n");
return -1;
}
loop = wl_display_get_event_loop(ec->wl_display);
ec->drm_source =
wl_event_loop_add_fd(loop, ec->drm_fd,
WL_EVENT_READABLE, on_drm_input, ec);
return 0;
}
@ -299,11 +377,11 @@ static drmModeModeInfo builtin_1024x768 = {
};
static int
create_output_for_connector(struct wlsc_compositor *ec,
create_output_for_connector(struct drm_compositor *ec,
drmModeRes *resources,
drmModeConnector *connector)
{
struct wlsc_output *output;
struct drm_output *output;
drmModeEncoder *encoder;
drmModeModeInfo *mode;
int i, ret;
@ -339,14 +417,13 @@ create_output_for_connector(struct wlsc_compositor *ec,
return -1;
}
output->compositor = ec;
memset(output, 0, sizeof *output);
wlsc_output_init(&output->base, &ec->base, 0, 0,
mode->hdisplay, mode->vdisplay);
output->crtc_id = resources->crtcs[i];
output->connector_id = connector->connector_id;
output->mode = *mode;
output->x = 0;
output->y = 0;
output->width = mode->hdisplay;
output->height = mode->vdisplay;
drmModeFreeEncoder(encoder);
@ -354,13 +431,17 @@ create_output_for_connector(struct wlsc_compositor *ec,
for (i = 0; i < 2; i++) {
glBindRenderbuffer(GL_RENDERBUFFER, output->rbo[i]);
attribs[1] = output->width;
attribs[3] = output->height;
output->image[i] = eglCreateDRMImageMESA(ec->display, attribs);
glEGLImageTargetRenderbufferStorageOES(GL_RENDERBUFFER, output->image[i]);
eglExportDRMImageMESA(ec->display, output->image[i], NULL, &handle, &stride);
attribs[1] = output->base.width;
attribs[3] = output->base.height;
output->image[i] =
eglCreateDRMImageMESA(ec->base.display, attribs);
glEGLImageTargetRenderbufferStorageOES(GL_RENDERBUFFER,
output->image[i]);
eglExportDRMImageMESA(ec->base.display, output->image[i],
NULL, &handle, &stride);
ret = drmModeAddFB(ec->drm_fd, output->width, output->height,
ret = drmModeAddFB(ec->drm_fd,
output->base.width, output->base.height,
32, 32, stride, handle, &output->fb_id[i]);
if (ret) {
fprintf(stderr, "failed to add fb %d: %m\n", i);
@ -381,13 +462,13 @@ create_output_for_connector(struct wlsc_compositor *ec,
return -1;
}
wl_list_insert(ec->output_list.prev, &output->link);
wl_list_insert(ec->base.output_list.prev, &output->base.link);
return 0;
}
static int
create_outputs(struct wlsc_compositor *ec)
create_outputs(struct drm_compositor *ec)
{
drmModeConnector *connector;
drmModeRes *resources;
@ -413,7 +494,7 @@ create_outputs(struct wlsc_compositor *ec)
drmModeFreeConnector(connector);
}
if (wl_list_empty(&ec->output_list)) {
if (wl_list_empty(&ec->base.output_list)) {
fprintf(stderr, "No currently active connector found.\n");
return -1;
}
@ -425,8 +506,8 @@ create_outputs(struct wlsc_compositor *ec)
static void on_enter_vt(int signal_number, void *data)
{
struct wlsc_compositor *ec = data;
struct wlsc_output *output;
struct drm_compositor *ec = data;
struct drm_output *output;
int ret;
ret = drmSetMaster(ec->drm_fd);
@ -441,19 +522,20 @@ static void on_enter_vt(int signal_number, void *data)
ioctl(ec->tty_fd, VT_RELDISP, VT_ACKACQ);
ec->vt_active = 1;
wl_list_for_each(output, &ec->output_list, link) {
wl_list_for_each(output, &ec->base.output_list, base.link) {
ret = drmModeSetCrtc(ec->drm_fd, output->crtc_id,
output->fb_id[output->current ^ 1], 0, 0,
&output->connector_id, 1, &output->mode);
if (ret)
fprintf(stderr, "failed to set mode for connector %d: %m\n",
fprintf(stderr,
"failed to set mode for connector %d: %m\n",
output->connector_id);
}
}
static void on_leave_vt(int signal_number, void *data)
{
struct wlsc_compositor *ec = data;
struct drm_compositor *ec = data;
int ret;
ret = drmDropMaster(ec->drm_fd);
@ -470,7 +552,7 @@ static void on_leave_vt(int signal_number, void *data)
static void
on_tty_input(int fd, uint32_t mask, void *data)
{
struct wlsc_compositor *ec = data;
struct drm_compositor *ec = data;
/* Ignore input to tty. We get keyboard events from evdev
*/
@ -479,7 +561,7 @@ on_tty_input(int fd, uint32_t mask, void *data)
static void on_term_signal(int signal_number, void *data)
{
struct wlsc_compositor *ec = data;
struct drm_compositor *ec = data;
if (tcsetattr(ec->tty_fd, TCSANOW, &ec->terminal_attributes) < 0)
fprintf(stderr, "could not restore terminal to canonical mode\n");
@ -487,7 +569,7 @@ static void on_term_signal(int signal_number, void *data)
exit(0);
}
static int setup_tty(struct wlsc_compositor *ec, struct wl_event_loop *loop)
static int setup_tty(struct drm_compositor *ec, struct wl_event_loop *loop)
{
struct termios raw_attributes;
struct vt_mode mode = { 0 };
@ -536,59 +618,65 @@ static int setup_tty(struct wlsc_compositor *ec, struct wl_event_loop *loop)
return 0;
}
int
wlsc_compositor_init_drm(struct wlsc_compositor *ec)
struct wlsc_compositor *
drm_compositor_create(struct wl_display *display)
{
struct drm_compositor *ec;
struct udev_enumerate *e;
struct udev_list_entry *entry;
struct udev_device *device;
const char *path;
struct wlsc_input_device *input_device;
struct wl_event_loop *loop;
ec = malloc(sizeof *ec);
if (ec == NULL)
return NULL;
memset(ec, 0, sizeof *ec);
ec->udev = udev_new();
if (ec->udev == NULL) {
fprintf(stderr, "failed to initialize udev context\n");
return -1;
return NULL;
}
input_device = wlsc_input_device_create(ec);
ec->input_device = input_device;
e = udev_enumerate_new(ec->udev);
udev_enumerate_add_match_subsystem(e, "input");
udev_enumerate_add_match_property(e, "WAYLAND_SEAT", "1");
udev_enumerate_scan_devices(e);
udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
path = udev_list_entry_get_name(entry);
device = udev_device_new_from_syspath(ec->udev, path);
evdev_input_device_create(input_device, ec->wl_display,
udev_device_get_devnode(device));
}
udev_enumerate_unref(e);
e = udev_enumerate_new(ec->udev);
udev_enumerate_add_match_subsystem(e, "drm");
udev_enumerate_add_match_property(e, "WAYLAND_SEAT", "1");
udev_enumerate_scan_devices(e);
device = NULL;
udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
path = udev_list_entry_get_name(entry);
device = udev_device_new_from_syspath(ec->udev, path);
fprintf(stderr, "creating output for %s\n", path);
if (init_egl(ec, device) < 0) {
fprintf(stderr, "failed to initialize egl\n");
return -1;
}
if (create_outputs(ec) < 0) {
fprintf(stderr, "failed to create output for %s\n", path);
return -1;
}
break;
}
udev_enumerate_unref(e);
loop = wl_display_get_event_loop(ec->wl_display);
setup_tty(ec, loop);
return 0;
if (device == NULL) {
fprintf(stderr, "no drm device found\n");
return NULL;
}
if (init_egl(ec, device) < 0) {
fprintf(stderr, "failed to initialize egl\n");
return NULL;
}
/* Can't init base class until we have a current egl context */
wlsc_compositor_init(&ec->base, display);
if (create_outputs(ec) < 0) {
fprintf(stderr, "failed to create output for %s\n", path);
return NULL;
}
drm_input_create(ec);
loop = wl_display_get_event_loop(ec->base.wl_display);
ec->drm_source =
wl_event_loop_add_fd(loop, ec->drm_fd,
WL_EVENT_READABLE, on_drm_input, ec);
setup_tty(ec, loop);
ec->base.present = drm_compositor_present;
return &ec->base;
}

666
compositor-x11.c Normal file
View file

@ -0,0 +1,666 @@
/*
* Copyright © 2008-2010 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.
*/
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <sys/time.h>
#include <xcb/xcb.h>
#include <xcb/dri2.h>
#include <xcb/xfixes.h>
#define GL_GLEXT_PROTOTYPES
#define EGL_EGLEXT_PROTOTYPES
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include "wayland.h"
#include "wayland-protocol.h"
#include "compositor.h"
#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))
struct x11_compositor {
struct wlsc_compositor base;
xcb_connection_t *conn;
xcb_screen_t *screen;
xcb_cursor_t null_cursor;
int dri2_major;
int dri2_minor;
int drm_fd;
struct wl_event_source *xcb_source;
struct {
xcb_atom_t wm_protocols;
xcb_atom_t wm_normal_hints;
xcb_atom_t wm_size_hints;
xcb_atom_t wm_delete_window;
xcb_atom_t net_wm_name;
xcb_atom_t utf8_string;
} atom;
};
struct x11_output {
struct wlsc_output base;
xcb_xfixes_region_t region;
xcb_window_t window;
GLuint rbo;
EGLImageKHR image;
xcb_rectangle_t damage[16];
int damage_count;
};
struct x11_input {
struct wlsc_input_device base;
};
static void
x11_input_create(struct x11_compositor *c)
{
struct x11_input *input;
input = malloc(sizeof *input);
if (input == NULL)
return;
memset(input, 0, sizeof *input);
wlsc_input_device_init(&input->base, &c->base);
c->base.input_device = &input->base;
}
static int
dri2_connect(struct x11_compositor *c)
{
xcb_xfixes_query_version_reply_t *xfixes_query;
xcb_xfixes_query_version_cookie_t xfixes_query_cookie;
xcb_dri2_query_version_reply_t *dri2_query;
xcb_dri2_query_version_cookie_t dri2_query_cookie;
xcb_dri2_connect_reply_t *connect;
xcb_dri2_connect_cookie_t connect_cookie;
xcb_generic_error_t *error;
xcb_prefetch_extension_data (c->conn, &xcb_xfixes_id);
xcb_prefetch_extension_data (c->conn, &xcb_dri2_id);
xfixes_query_cookie =
xcb_xfixes_query_version(c->conn,
XCB_XFIXES_MAJOR_VERSION,
XCB_XFIXES_MINOR_VERSION);
dri2_query_cookie =
xcb_dri2_query_version (c->conn,
XCB_DRI2_MAJOR_VERSION,
XCB_DRI2_MINOR_VERSION);
connect_cookie = xcb_dri2_connect_unchecked (c->conn,
c->screen->root,
XCB_DRI2_DRIVER_TYPE_DRI);
xfixes_query =
xcb_xfixes_query_version_reply (c->conn,
xfixes_query_cookie, &error);
if (xfixes_query == NULL ||
error != NULL || xfixes_query->major_version < 2) {
free(error);
return -1;
}
free(xfixes_query);
dri2_query =
xcb_dri2_query_version_reply (c->conn,
dri2_query_cookie, &error);
if (dri2_query == NULL || error != NULL) {
fprintf(stderr, "DRI2: failed to query version");
free(error);
return EGL_FALSE;
}
c->dri2_major = dri2_query->major_version;
c->dri2_minor = dri2_query->minor_version;
free(dri2_query);
connect = xcb_dri2_connect_reply (c->conn,
connect_cookie, NULL);
if (connect == NULL ||
connect->driver_name_length + connect->device_name_length == 0) {
fprintf(stderr, "DRI2: failed to authenticate");
return -1;
}
c->base.base.device =
strndup(xcb_dri2_connect_device_name (connect),
xcb_dri2_connect_device_name_length (connect));
if (c->base.base.device == NULL) {
free(connect);
return -1;
}
free(connect);
return 0;
}
static int
dri2_authenticate(struct x11_compositor *c)
{
xcb_dri2_authenticate_reply_t *authenticate;
xcb_dri2_authenticate_cookie_t authenticate_cookie;
drm_magic_t magic;
if (drmGetMagic(c->drm_fd, &magic)) {
fprintf(stderr, "DRI2: failed to get drm magic");
return -1;
}
authenticate_cookie =
xcb_dri2_authenticate_unchecked(c->conn,
c->screen->root, magic);
authenticate =
xcb_dri2_authenticate_reply(c->conn,
authenticate_cookie, NULL);
if (authenticate == NULL || !authenticate->authenticated) {
fprintf(stderr, "DRI2: failed to authenticate");
free(authenticate);
return -1;
}
free(authenticate);
return 0;
}
static int
x11_compositor_init_egl(struct x11_compositor *c)
{
PFNEGLGETTYPEDDISPLAYMESA get_typed_display_mesa;
EGLint major, minor, count;
EGLConfig config;
static const EGLint config_attribs[] = {
EGL_SURFACE_TYPE, 0,
EGL_NO_SURFACE_CAPABLE_MESA, EGL_OPENGL_BIT,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_NONE
};
if (dri2_connect(c) < 0)
return -1;
c->drm_fd = open(c->base.base.device, O_RDWR);
if (c->drm_fd == -1) {
fprintf(stderr,
"DRI2: could not open %s (%s)", c->base.base.device,
strerror(errno));
return -1;
}
if (dri2_authenticate(c) < 0)
return -1;
get_typed_display_mesa =
(PFNEGLGETTYPEDDISPLAYMESA)
eglGetProcAddress("eglGetTypedDisplayMESA");
if (get_typed_display_mesa == NULL) {
fprintf(stderr, "eglGetTypedDisplayMESA() not found\n");
return -1;
}
c->base.display = get_typed_display_mesa(EGL_DRM_DISPLAY_TYPE_MESA,
(void *) c->drm_fd);
if (c->base.display == NULL) {
fprintf(stderr, "failed to create display\n");
return -1;
}
if (!eglInitialize(c->base.display, &major, &minor)) {
fprintf(stderr, "failed to initialize display\n");
return -1;
}
if (!eglChooseConfig(c->base.display,
config_attribs, &config, 1, &count) ||
count == 0) {
fprintf(stderr, "eglChooseConfig() failed\n");
return -1;
}
eglBindAPI(EGL_OPENGL_API);
c->base.context = eglCreateContext(c->base.display,
config, EGL_NO_CONTEXT, NULL);
if (c->base.context == NULL) {
fprintf(stderr, "failed to create context\n");
return -1;
}
if (!eglMakeCurrent(c->base.display, EGL_NO_SURFACE,
EGL_NO_SURFACE, c->base.context)) {
fprintf(stderr, "failed to make context current\n");
return -1;
}
return 0;
}
static void
x11_compositor_present(struct wlsc_compositor *base)
{
struct x11_compositor *c = (struct x11_compositor *) base;
struct x11_output *output;
xcb_dri2_copy_region_cookie_t cookie;
struct timeval tv;
uint32_t msec;
glFlush();
wl_list_for_each(output, &c->base.output_list, base.link) {
cookie = xcb_dri2_copy_region_unchecked(c->conn,
output->window,
output->region,
XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT,
XCB_DRI2_ATTACHMENT_BUFFER_BACK_LEFT);
free(xcb_dri2_copy_region_reply(c->conn, cookie, NULL));
}
gettimeofday(&tv, NULL);
msec = tv.tv_sec * 1000 + tv.tv_usec / 1000;
wlsc_compositor_finish_frame(&c->base, msec);
}
static void
x11_output_set_wm_protocols(struct x11_output *output)
{
xcb_atom_t list[1];
struct x11_compositor *c =
(struct x11_compositor *) output->base.compositor;
list[0] = c->atom.wm_delete_window;
xcb_change_property (c->conn,
XCB_PROP_MODE_REPLACE,
output->window,
c->atom.wm_protocols,
XCB_ATOM_ATOM,
32,
ARRAY_SIZE(list),
list);
}
struct wm_normal_hints {
uint32_t flags;
uint32_t pad[4];
int32_t min_width, min_height;
int32_t max_width, max_height;
int32_t width_inc, height_inc;
int32_t min_aspect_x, min_aspect_y;
int32_t max_aspect_x, max_aspect_y;
int32_t base_width, base_height;
int32_t win_gravity;
};
#define WM_NORMAL_HINTS_MIN_SIZE 16
#define WM_NORMAL_HINTS_MAX_SIZE 32
static int
x11_compositor_create_output(struct x11_compositor *c, int width, int height)
{
static const char name[] = "Wayland Compositor";
struct x11_output *output;
xcb_dri2_dri2_buffer_t *buffers;
xcb_dri2_get_buffers_reply_t *reply;
xcb_dri2_get_buffers_cookie_t cookie;
xcb_screen_iterator_t iter;
xcb_rectangle_t rectangle;
struct wm_normal_hints normal_hints;
unsigned int attachments[] =
{ XCB_DRI2_ATTACHMENT_BUFFER_BACK_LEFT};
uint32_t mask = XCB_CW_EVENT_MASK | XCB_CW_CURSOR;
uint32_t values[2] = {
XCB_EVENT_MASK_KEY_PRESS |
XCB_EVENT_MASK_KEY_RELEASE |
XCB_EVENT_MASK_BUTTON_PRESS |
XCB_EVENT_MASK_BUTTON_RELEASE |
XCB_EVENT_MASK_POINTER_MOTION |
XCB_EVENT_MASK_EXPOSURE |
XCB_EVENT_MASK_STRUCTURE_NOTIFY,
0
};
EGLint attribs[] = {
EGL_WIDTH, 0,
EGL_HEIGHT, 0,
EGL_IMAGE_STRIDE_MESA, 0,
EGL_IMAGE_FORMAT_MESA, EGL_IMAGE_FORMAT_ARGB8888_MESA,
EGL_NONE
};
output = malloc(sizeof *output);
if (output == NULL)
return -1;
memset(output, 0, sizeof *output);
wlsc_output_init(&output->base, &c->base, 0, 0, width, height);
values[1] = c->null_cursor;
output->window = xcb_generate_id(c->conn);
iter = xcb_setup_roots_iterator(xcb_get_setup(c->conn));
xcb_create_window(c->conn,
XCB_COPY_FROM_PARENT,
output->window,
iter.data->root,
0, 0,
width, height,
0,
XCB_WINDOW_CLASS_INPUT_OUTPUT,
iter.data->root_visual,
mask, values);
/* Don't resize me. */
memset(&normal_hints, 0, sizeof normal_hints);
normal_hints.flags =
WM_NORMAL_HINTS_MAX_SIZE | WM_NORMAL_HINTS_MIN_SIZE;
normal_hints.min_width = width;
normal_hints.min_height = height;
normal_hints.max_width = width;
normal_hints.max_height = height;
xcb_change_property (c->conn, XCB_PROP_MODE_REPLACE, output->window,
c->atom.wm_normal_hints,
c->atom.wm_size_hints, 32,
sizeof normal_hints / 4,
(uint8_t *) &normal_hints);
xcb_map_window(c->conn, output->window);
/* Set window name. Don't bother with non-EWMH WMs. */
xcb_change_property(c->conn, XCB_PROP_MODE_REPLACE, output->window,
c->atom.net_wm_name, c->atom.utf8_string, 8,
strlen(name), name);
rectangle.x = 0;
rectangle.y = 0;
rectangle.width = width;
rectangle.height = height;
output->region = xcb_generate_id(c->conn);
xcb_xfixes_create_region(c->conn, output->region, 1, &rectangle);
xcb_dri2_create_drawable (c->conn, output->window);
x11_output_set_wm_protocols(output);
cookie = xcb_dri2_get_buffers_unchecked (c->conn,
output->window,
1, 1, attachments);
reply = xcb_dri2_get_buffers_reply (c->conn, cookie, NULL);
if (reply == NULL)
return -1;
buffers = xcb_dri2_get_buffers_buffers (reply);
if (buffers == NULL)
return -1;
if (reply->count != 1) {
fprintf(stderr,
"got wrong number of buffers (%d)\n", reply->count);
return -1;
}
attribs[1] = reply->width;
attribs[3] = reply->height;
attribs[5] = buffers[0].pitch / 4;
free(reply);
output->image =
eglCreateImageKHR(c->base.display, c->base.context,
EGL_DRM_IMAGE_MESA,
(EGLClientBuffer) buffers[0].name,
attribs);
glGenRenderbuffers(1, &output->rbo);
glBindRenderbuffer(GL_RENDERBUFFER, output->rbo);
glEGLImageTargetRenderbufferStorageOES(GL_RENDERBUFFER,
output->image);
glFramebufferRenderbuffer(GL_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0,
GL_RENDERBUFFER,
output->rbo);
wl_list_insert(c->base.output_list.prev, &output->base.link);
return 0;
}
static void
idle_repaint(void *data)
{
struct x11_output *output = data;
struct x11_compositor *c =
(struct x11_compositor *) output->base.compositor;
xcb_xfixes_region_t region;
xcb_dri2_copy_region_cookie_t cookie;
if (output->damage_count <= ARRAY_SIZE(output->damage)) {
region = xcb_generate_id(c->conn);
xcb_xfixes_create_region(c->conn, region,
output->damage_count, output->damage);
} else {
region = output->region;
}
cookie = xcb_dri2_copy_region_unchecked(c->conn,
output->window,
region,
XCB_DRI2_ATTACHMENT_BUFFER_FRONT_LEFT,
XCB_DRI2_ATTACHMENT_BUFFER_BACK_LEFT);
if (region != output->region)
xcb_xfixes_destroy_region(c->conn, region);
free(xcb_dri2_copy_region_reply(c->conn, cookie, NULL));
output->damage_count = 0;
}
static struct x11_output *
x11_compositor_find_output(struct x11_compositor *c, xcb_window_t window)
{
struct x11_output *output;
wl_list_for_each(output, &c->base.output_list, base.link) {
if (output->window == window)
return output;
}
return NULL;
}
static void
x11_compositor_handle_event(int fd, uint32_t mask, void *data)
{
struct x11_compositor *c = data;
struct x11_output *output;
xcb_generic_event_t *event;
struct wl_event_loop *loop;
xcb_client_message_event_t *client_message;
xcb_motion_notify_event_t *motion_notify;
xcb_key_press_event_t *key_press;
xcb_button_press_event_t *button_press;
xcb_expose_event_t *expose;
xcb_rectangle_t *r;
xcb_atom_t atom;
loop = wl_display_get_event_loop(c->base.wl_display);
while (event = xcb_poll_for_event (c->conn), event != NULL) {
switch (event->response_type & ~0x80) {
case XCB_KEY_PRESS:
key_press = (xcb_key_press_event_t *) event;
notify_key(c->base.input_device,
key_press->detail, 1);
fprintf(stderr, "code %d, sequence %d\n",
key_press->detail, key_press->sequence);
break;
case XCB_KEY_RELEASE:
key_press = (xcb_key_press_event_t *) event;
notify_key(c->base.input_device,
key_press->detail, 0);
break;
case XCB_BUTTON_PRESS:
button_press = (xcb_button_press_event_t *) event;
notify_button(c->base.input_device,
button_press->detail, 1);
break;
case XCB_BUTTON_RELEASE:
button_press = (xcb_button_press_event_t *) event;
notify_button(c->base.input_device,
button_press->detail, 0);
break;
case XCB_MOTION_NOTIFY:
motion_notify = (xcb_motion_notify_event_t *) event;
notify_motion(c->base.input_device,
motion_notify->event_x,
motion_notify->event_y);
break;
case XCB_EXPOSE:
expose = (xcb_expose_event_t *) event;
output = x11_compositor_find_output(c, expose->window);
if (output->damage_count == 0)
wl_event_loop_add_idle(loop,
idle_repaint, output);
r = &output->damage[output->damage_count++];
if (output->damage_count > 16)
break;
r->x = expose->x;
r->y = expose->y;
r->width = expose->width;
r->height = expose->height;
break;
case XCB_CLIENT_MESSAGE:
client_message = (xcb_client_message_event_t *) event;
atom = client_message->data.data32[0];
if (atom == c->atom.wm_delete_window)
exit(1);
break;
default:
break;
}
free (event);
}
}
#define F(field) offsetof(struct x11_compositor, field)
static void
x11_compositor_get_resources(struct x11_compositor *c)
{
static const struct { const char *name; int offset; } atoms[] = {
{ "WM_PROTOCOLS", F(atom.wm_protocols) },
{ "WM_NORMAL_HINTS", F(atom.wm_normal_hints) },
{ "WM_SIZE_HINTS", F(atom.wm_size_hints) },
{ "WM_DELETE_WINDOW", F(atom.wm_delete_window) },
{ "_NET_WM_NAME", F(atom.net_wm_name) },
{ "UTF8_STRING", F(atom.utf8_string) },
};
xcb_intern_atom_cookie_t cookies[ARRAY_SIZE(atoms)];
xcb_intern_atom_reply_t *reply;
xcb_pixmap_t pixmap;
xcb_gc_t gc;
int i;
uint8_t data[] = { 0, 0, 0, 0 };
for (i = 0; i < ARRAY_SIZE(atoms); i++)
cookies[i] = xcb_intern_atom (c->conn, 0,
strlen(atoms[i].name),
atoms[i].name);
for (i = 0; i < ARRAY_SIZE(atoms); i++) {
reply = xcb_intern_atom_reply (c->conn, cookies[i], NULL);
*(xcb_atom_t *) ((char *) c + atoms[i].offset) = reply->atom;
free(reply);
}
pixmap = xcb_generate_id(c->conn);
gc = xcb_generate_id(c->conn);
xcb_create_pixmap(c->conn, 1, pixmap, c->screen->root, 1, 1);
xcb_create_gc(c->conn, gc, pixmap, 0, NULL);
xcb_put_image(c->conn, XCB_IMAGE_FORMAT_XY_PIXMAP,
pixmap, gc, 1, 1, 0, 0, 0, 32, sizeof data, data);
c->null_cursor = xcb_generate_id(c->conn);
xcb_create_cursor (c->conn, c->null_cursor,
pixmap, pixmap, 0, 0, 0, 0, 0, 0, 1, 1);
xcb_free_gc(c->conn, gc);
xcb_free_pixmap(c->conn, pixmap);
}
struct wlsc_compositor *
x11_compositor_create(struct wl_display *display)
{
struct x11_compositor *c;
struct wl_event_loop *loop;
xcb_screen_iterator_t s;
c = malloc(sizeof *c);
if (c == NULL)
return NULL;
memset(c, 0, sizeof *c);
c->conn = xcb_connect(0, 0);
if (xcb_connection_has_error(c->conn))
return NULL;
s = xcb_setup_roots_iterator(xcb_get_setup(c->conn));
c->screen = s.data;
x11_compositor_get_resources(c);
x11_compositor_init_egl(c);
/* Can't init base class until we have a current egl context */
wlsc_compositor_init(&c->base, display);
x11_compositor_create_output(c, 1024, 640);
x11_input_create(c);
loop = wl_display_get_event_loop(c->base.wl_display);
c->xcb_source =
wl_event_loop_add_fd(loop, xcb_get_file_descriptor(c->conn),
WL_EVENT_READABLE,
x11_compositor_handle_event, c);
c->base.present = x11_compositor_present;
return &c->base;
}

108
compositor.c
View file

@ -355,8 +355,6 @@ wlsc_compositor_finish_frame(struct wlsc_compositor *compositor, int msecs)
compositor->current_frame, msecs);
wl_event_source_timer_update(compositor->timer_source, 5);
compositor->repaint_on_timeout = 1;
compositor->current_frame++;
}
@ -379,13 +377,6 @@ wlsc_output_repaint(struct wlsc_output *output)
wl_list_for_each(eid, &ec->input_device_list, link)
wlsc_surface_draw(eid->sprite, output);
output->current ^= 1;
glFramebufferRenderbuffer(GL_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0,
GL_RENDERBUFFER,
output->rbo[output->current]);
}
static void
@ -402,7 +393,7 @@ repaint(void *data)
wl_list_for_each(output, &ec->output_list, link)
wlsc_output_repaint(output);
wlsc_compositor_present_drm(ec);
ec->present(ec);
ec->repaint_needed = 0;
}
@ -628,9 +619,6 @@ notify_motion(struct wlsc_input_device *device, int x, int y)
const int hotspot_x = 16, hotspot_y = 16;
int32_t sx, sy;
if (!ec->vt_active)
return;
/* FIXME: We need some multi head love here. */
output = container_of(ec->output_list.next, struct wlsc_output, link);
if (x < output->x)
@ -668,8 +656,7 @@ notify_button(struct wlsc_input_device *device,
struct wlsc_compositor *compositor = device->ec;
int32_t sx, sy;
if (!compositor->vt_active)
return;
fprintf(stderr, "notify button: button %d, state %d\n", button, state);
surface = pick_surface(device, &sx, &sy);
if (surface) {
@ -700,9 +687,6 @@ notify_key(struct wlsc_input_device *device,
uint32_t *k, *end;
uint32_t modifier;
if (!compositor->vt_active)
return;
switch (key | compositor->modifier_state) {
case KEY_BACKSPACE | MODIFIER_CTRL | MODIFIER_ALT:
kill(0, SIGTERM);
@ -769,16 +753,10 @@ handle_surface_destroy(struct wlsc_listener *listener,
}
}
struct wlsc_input_device *
wlsc_input_device_create(struct wlsc_compositor *ec)
void
wlsc_input_device_init(struct wlsc_input_device *device,
struct wlsc_compositor *ec)
{
struct wlsc_input_device *device;
device = malloc(sizeof *device);
if (device == NULL)
return NULL;
memset(device, 0, sizeof *device);
device->base.interface = &wl_input_device_interface;
device->base.implementation = NULL;
wl_display_add_object(ec->wl_display, &device->base);
@ -786,13 +764,12 @@ wlsc_input_device_create(struct wlsc_compositor *ec)
device->x = 100;
device->y = 100;
device->ec = ec;
device->sprite = pointer_create(ec, device->x, device->y, 64, 64);
device->listener.func = handle_surface_destroy;
wl_list_insert(ec->surface_destroy_listener_list.prev,
&device->listener.link);
wl_list_insert(ec->input_device_list.prev, &device->link);
return device;
}
static void
@ -916,18 +893,37 @@ add_visuals(struct wlsc_compositor *ec)
wl_display_add_global(ec->wl_display, &ec->rgb_visual.base, NULL);
}
static struct wlsc_compositor *
wlsc_compositor_create(struct wl_display *display)
void
wlsc_output_init(struct wlsc_output *output, struct wlsc_compositor *c,
int x, int y, int width, int height)
{
output->compositor = c;
output->x = x;
output->y = y;
output->width = width;
output->height = height;
output->background =
background_create(output, option_background);
wlsc_matrix_init(&output->matrix);
wlsc_matrix_translate(&output->matrix,
-output->x - output->width / 2.0,
-output->y - output->height / 2.0, 0);
wlsc_matrix_scale(&output->matrix,
2.0 / output->width, 2.0 / output->height, 1);
output->base.interface = &wl_output_interface;
wl_display_add_object(c->wl_display, &output->base);
wl_display_add_global(c->wl_display, &output->base,
wlsc_output_post_geometry);
}
int
wlsc_compositor_init(struct wlsc_compositor *ec, struct wl_display *display)
{
struct wlsc_compositor *ec;
struct wl_event_loop *loop;
struct wlsc_output *output;
ec = malloc(sizeof *ec);
if (ec == NULL)
return NULL;
memset(ec, 0, sizeof *ec);
ec->wl_display = display;
wl_display_set_compositor(display, &ec->base, &compositor_interface);
@ -941,34 +937,6 @@ wlsc_compositor_create(struct wl_display *display)
screenshooter_create(ec);
if (wlsc_compositor_init_drm(ec) < 0) {
fprintf(stderr, "failed to initialize devices\n");
return NULL;
}
/* Create the pointer and background surfaces now that we have
* a current EGL context. */
ec->input_device->sprite =
pointer_create(ec,
ec->input_device->x,
ec->input_device->y, 64, 64);
wl_list_for_each(output, &ec->output_list, link) {
output->background = background_create(output,
option_background);
wlsc_matrix_init(&output->matrix);
wlsc_matrix_translate(&output->matrix,
-output->x - output->width / 2.0,
-output->y - output->height / 2.0, 0);
wlsc_matrix_scale(&output->matrix,
2.0 / output->width, 2.0 / output->height, 1);
output->base.interface = &wl_output_interface;
wl_display_add_object(ec->wl_display, &output->base);
wl_display_add_global(ec->wl_display, &output->base,
wlsc_output_post_geometry);
}
glGenFramebuffers(1, &ec->fbo);
glBindFramebuffer(GL_FRAMEBUFFER, ec->fbo);
glActiveTexture(GL_TEXTURE0);
@ -978,7 +946,7 @@ wlsc_compositor_create(struct wl_display *display)
ec->timer_source = wl_event_loop_add_timer(loop, repaint, ec);
wlsc_compositor_schedule_repaint(ec);
return ec;
return 0;
}
/* The plan here is to generate a random anonymous socket name and
@ -1002,7 +970,11 @@ int main(int argc, char *argv[])
display = wl_display_create();
ec = wlsc_compositor_create(display);
if (getenv("DISPLAY"))
ec = x11_compositor_create(display);
else
ec = drm_compositor_create(display);
if (ec == NULL) {
fprintf(stderr, "failed to create compositor\n");
exit(EXIT_FAILURE);

45
compositor.h
View file

@ -54,15 +54,6 @@ struct wlsc_output {
struct wlsc_surface *background;
struct wlsc_matrix matrix;
int32_t x, y, width, height;
drmModeModeInfo mode;
uint32_t crtc_id;
uint32_t connector_id;
GLuint rbo[2];
uint32_t fb_id[2];
EGLImageKHR image[2];
uint32_t current;
};
struct wlsc_input_device {
@ -87,7 +78,6 @@ struct wlsc_compositor {
EGLDisplay display;
EGLContext context;
int drm_fd;
GLuint fbo, vbo;
GLuint proj_uniform, tex_uniform;
struct wl_display *wl_display;
@ -101,28 +91,16 @@ struct wlsc_compositor {
struct wl_list surface_destroy_listener_list;
struct wl_event_source *term_signal_source;
/* tty handling state */
int tty_fd;
uint32_t vt_active : 1;
struct termios terminal_attributes;
struct wl_event_source *tty_input_source;
struct wl_event_source *enter_vt_source;
struct wl_event_source *leave_vt_source;
struct udev *udev;
/* Repaint state. */
struct wl_event_source *timer_source;
int repaint_needed;
int repaint_on_timeout;
struct timespec previous_swap;
uint32_t current_frame;
struct wl_event_source *drm_source;
uint32_t modifier_state;
void (*present)(struct wlsc_compositor *c);
};
#define MODIFIER_CTRL (1 << 8)
@ -151,15 +129,26 @@ notify_button(struct wlsc_input_device *device, int32_t button, int32_t state);
void
notify_key(struct wlsc_input_device *device, uint32_t key, uint32_t state);
void
wlsc_compositor_present_drm(struct wlsc_compositor *wlsc);
int
wlsc_compositor_init_drm(struct wlsc_compositor *ec);
void
wlsc_compositor_finish_frame(struct wlsc_compositor *compositor, int msecs);
struct wlsc_input_device *
wlsc_input_device_create(struct wlsc_compositor *ec);
int
wlsc_compositor_init(struct wlsc_compositor *ec, struct wl_display *display);
void
wlsc_output_init(struct wlsc_output *output, struct wlsc_compositor *c,
int x, int y, int width, int height);
void
wlsc_input_device_init(struct wlsc_input_device *device,
struct wlsc_compositor *ec);
struct wlsc_compositor *
x11_compositor_create(struct wl_display *display);
struct wlsc_compositor *
drm_compositor_create(struct wl_display *display);
void
screenshooter_create(struct wlsc_compositor *ec);

2
configure.ac
View file

@ -5,7 +5,7 @@ PKG_PROG_PKG_CONFIG()
PKG_CHECK_MODULES(FFI, [libffi])
PKG_CHECK_MODULES(COMPOSITOR,
[egl gl libpng cairo gdk-pixbuf-2.0 libudev >= 136 libdrm >= 2.4.17])
[egl gl libpng cairo gdk-pixbuf-2.0 libudev >= 136 libdrm >= 2.4.17] xcb-dri2 xcb-xfixes)
PKG_CHECK_MODULES(CLIENT, [egl gl cairo-gl gdk-pixbuf-2.0 glib-2.0 gobject-2.0])
PKG_CHECK_MODULES(POPPLER, [poppler-glib gdk-2.0])

1
event-loop.c
View file

@ -342,6 +342,7 @@ wl_event_source_idle_remove(struct wl_event_source *source)
(struct wl_event_source_idle *) source;
wl_list_remove(&idle_source->link);
free(source);
return 0;
}