mainnika
/
weston
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Make ack event signal that the requests have been composited.

Browse Source
Kristian Høgsberg 16 years ago
parent f3723fe79e
commit 44f36e3585
5 changed files with 111 additions and 74 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 2
      egl-compositor.c
  2. 22
      flower.c
  3. 34
      wayland.c
  4. 2
      wayland.h
  5. 125
      window.c

2
egl-compositor.c
Unescape View File

@ -541,6 +541,8 @@ repaint(void *data)
eglSwapBuffers(ec->display, ec->surface);
wl_display_post_acknowledge(ec->wl_display);
animate_overlay(ec);
}

22
flower.c
Unescape View File

@ -82,23 +82,30 @@ draw_stuff(int width, int height)
}
struct flower {
struct wl_display *display;
struct wl_surface *surface;
int i;
int x, y, width, height;
};
static gboolean
move_flower(gpointer data)
static void
move_flower(struct flower *flower)
{
struct flower *flower = data;
wl_surface_map(flower->surface,
flower->x + cos(flower->i / 31.0) * 400 - flower->width / 2,
flower->y + sin(flower->i / 27.0) * 300 - flower->height / 2,
flower->width, flower->height);
flower->i++;
wl_display_commit(flower->display, 0);
}
return TRUE;
static void
event_handler(struct wl_display *display,
uint32_t object, uint32_t opcode,
uint32_t size, uint32_t *p, void *data)
{
if (object == 1)
move_flower(data);
}
int main(int argc, char *argv[])
@ -129,6 +136,7 @@ int main(int argc, char *argv[])
source = wayland_source_new(display);
g_source_attach(source, NULL);
flower.display = display;
flower.x = 512;
flower.y = 384;
flower.width = 200;
@ -144,8 +152,8 @@ int main(int argc, char *argv[])
wl_surface_attach(flower.surface, buffer->name, flower.width, flower.height,
buffer->stride);
g_timeout_add(20, move_flower, &flower);
wl_display_set_event_handler(display, event_handler, &flower);
move_flower(&flower);
g_main_loop_run(loop);

34
wayland.c
Unescape View File

@ -19,6 +19,8 @@ struct wl_client {
struct wl_display *display;
struct wl_list object_list;
struct wl_list link;
uint32_t pending_acknowledge;
uint32_t acknowledge_key;
};
struct wl_display {
@ -500,12 +502,8 @@ static int
wl_display_commit(struct wl_client *client,
struct wl_display *display, uint32_t key)
{
uint32_t event[3];
event[0] = display->base.id;
event[1] = WL_DISPLAY_ACKNOWLEDGE | ((sizeof event) << 16);
event[2] = key;
wl_connection_write(client->connection, event, sizeof event);
client->pending_acknowledge = 1;
client->acknowledge_key = key;
return 0;
}
@ -687,6 +685,30 @@ wl_display_post_key_event(struct wl_display *display,
wl_display_send_event(display, p, sizeof p);
}
WL_EXPORT void
wl_display_post_acknowledge(struct wl_display *display)
{
struct wl_client *client;
uint32_t event[3];
event[0] = display->base.id;
event[1] = WL_DISPLAY_ACKNOWLEDGE | ((sizeof event) << 16);
client = container_of(display->client_list.next,
struct wl_client, link);
while (&client->link != &display->client_list) {
if (client->pending_acknowledge) {
event[2] = client->acknowledge_key;
wl_connection_write(client->connection,
event, sizeof event);
client->pending_acknowledge = 0;
}
client = container_of(client->link.next,
struct wl_client, link);
}
}
void
wl_display_set_compositor(struct wl_display *display,
struct wl_compositor *compositor)

2
wayland.h
Unescape View File

@ -109,6 +109,8 @@ wl_display_post_button_event(struct wl_display *display,
void
wl_display_post_key_event(struct wl_display *display,
struct wl_object *source, int key, int state);
void
wl_display_post_acknowledge(struct wl_display *display);
struct wl_compositor {
const struct wl_compositor_interface *interface;

125
window.c
Unescape View File

@ -36,7 +36,6 @@ struct window {
int state;
uint32_t name;
int fd;
int redraw_scheduled;
int resized;
cairo_pattern_t *background;
@ -155,12 +154,6 @@ draw_window(void *data)
window->buffer->height,
window->buffer->stride);
wl_surface_map(window->surface,
window->x - window->margin,
window->y - window->margin,
window->buffer->width,
window->buffer->height);
width = window->width - 20;
height = window->height - 60;
buffer = buffer_create(window->fd, width, height, (width * 4 + 15) & ~15);
@ -178,15 +171,54 @@ draw_window(void *data)
if (window->gears == NULL)
window->gears = gears_create(0, 0, 0, 0.92);
window->resized = 0;
return FALSE;
}
static gboolean
animate_gears(gpointer data)
{
struct window *window = data;
struct buffer *buffer;
static uint32_t key;
/* Right now, resizing the window from the animation is fine,
* since the window drawing code is so slow, but once we
* implement faster resizing, this will show lag between
* pointer motion and window size even if resizing is fast.
* We need to keep processing motion events and posting new
* frames as fast as possible so when the server composites
* the next frame it will have the most recent size possible.
* In that case, we need the two ack protocol, where the first
* ack signals that the server got the request so we can free
* the buffer, to prevent us from allocating a ton of buffer
* that will never be displayed. */
if (window->resized)
draw_window(window);
gears_draw(window->gears, window->gears_angle);
buffer = window->egl_buffer;
wl_surface_copy(window->surface,
10 + window->margin, 50 + window->margin,
buffer->name, buffer->stride,
0, 0, buffer->width, buffer->height);
wl_display_commit(window->display, 0);
/* Shouldn't need to do this here, but without proper commit
* support in the server, doing this before rendering the
* gears show the window briefly before it's fully
* rendered. */
window->redraw_scheduled = 0;
wl_surface_map(window->surface,
window->x - window->margin,
window->y - window->margin,
window->width + 2 * window->margin,
window->height + 2 * window->margin);
wl_display_commit(window->display, key++);
window->gears_angle += 1;
return FALSE;
}
@ -221,22 +253,20 @@ event_handler(struct wl_display *display,
/* FIXME: Object ID 1 is the display, for anything else we
* assume it's an input device. */
if (object == 1 && opcode == 3) {
int key = p[0];
/* The acknowledge event means that the server
* processed our last comit request and we can now
* safely free the buffer. key == 0 means it's an
* acknowledge event for the drawing in draw_buffer,
* key == 1 is from animating the gears, which we
* ignore. If the window was resized in the meantime,
* schedule another redraw. */
if (key == 0) {
if (window->resized)
g_idle_add(draw_window, window);
* processed our last commit request and we can now
* safely free the buffer. */
if (window->buffer != NULL) {
buffer_destroy(window->buffer, window->fd);
window->buffer = NULL;
window->resized = 0;
}
g_idle_add(animate_gears, window);
} else if (object == 1) {
fprintf(stderr, "unexpected event from display: %d\n",
opcode);
exit(-1);
} else if (opcode == 0) {
int x = p[0], y = p[1];
@ -251,6 +281,16 @@ event_handler(struct wl_display *display,
window->y - window->margin,
window->width + 2 * window->margin,
window->height + 2 * window->margin);
/* FIXME: We should do this here:
*
* wl_display_commit(window->display, 1);
*
* to make sure the server processes the move,
* but that'll mess with the other commit from
* animate_gears with the current server
* implementation. Since the current server
* doesn't rely on commit anyway yet, we can
* just forget about it for now. */
break;
case WINDOW_RESIZING_LOWER_RIGHT:
window->width = window->drag_x + x;
@ -259,21 +299,7 @@ event_handler(struct wl_display *display,
window->width = 400;
if (window->height < 400)
window->height = 400;
if (!window->redraw_scheduled) {
/* If window->buffer is NULL, it means
* we got the ack for the previous
* resize, so we can just schedule a
* redraw from idle. Otherwise, we're
* still expecting an ack and we'll
* notice that the size changed in the
* ack handler and schedule a redraw
* there. */
if (window->buffer == NULL)
g_idle_add(draw_window, window);
else
window->resized = 1;
window->redraw_scheduled = 1;
}
window->resized = 1;
break;
}
} else if (opcode == 1) {
@ -338,6 +364,7 @@ window_create(struct wl_display *display, int fd)
window->state = WINDOW_STABLE;
window->fd = fd;
window->background = cairo_pattern_create_rgba (red, green, blue, alpha);
window->resized = 1;
window->egl_display = eglCreateDisplayNative("/dev/dri/card0", "i965");
if (window->egl_display == NULL)
@ -354,33 +381,11 @@ window_create(struct wl_display *display, int fd)
if (window->context == NULL)
die("failed to create context\n");
draw_window(window);
animate_gears(window);
return window;
}
static gboolean
draw(gpointer data)
{
struct window *window = data;
struct buffer *buffer;
if (!window->redraw_scheduled) {
gears_draw(window->gears, window->gears_angle);
buffer = window->egl_buffer;
wl_surface_copy(window->surface,
10 + window->margin, 50 + window->margin,
buffer->name, buffer->stride,
0, 0, buffer->width, buffer->height);
wl_display_commit(window->display, 1);
}
window->gears_angle += 1;
return TRUE;
}
int main(int argc, char *argv[])
{
struct wl_display *display;
@ -409,8 +414,6 @@ int main(int argc, char *argv[])
wl_display_set_event_handler(display, event_handler, window);
g_timeout_add(50, draw, window);
g_main_loop_run(loop);
return 0;

Write Preview
Loading…
Cancel
Save