From: Quentin Glidic <[email protected]>

Signed-off-by: Quentin Glidic <[email protected]>
---
 clients/.gitignore            |   3 +
 clients/Makefile.am           |  11 ++
 clients/simple-notification.c | 391 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 405 insertions(+)
 create mode 100644 clients/simple-notification.c

diff --git a/clients/.gitignore b/clients/.gitignore
index f925ce6..be8de8a 100644
--- a/clients/.gitignore
+++ b/clients/.gitignore
@@ -13,10 +13,13 @@ input-method-protocol.c
 input-method-client-protocol.h
 weston-keyboard
 libtoytoolkit.a
+notification-daemon-client-protocol.h
+notification-daemon-protocol.c
 resizor
 screenshooter-client-protocol.h
 screenshooter-protocol.c
 simple-egl
+simple-notification
 simple-shm
 simple-touch
 smoke
diff --git a/clients/Makefile.am b/clients/Makefile.am
index d360174..89c541e 100644
--- a/clients/Makefile.am
+++ b/clients/Makefile.am
@@ -25,9 +25,18 @@ AM_CPPFLAGS =                                        \
 
 if BUILD_SIMPLE_CLIENTS
 simple_clients_programs =                      \
+       simple-notification                     \
        simple-shm                              \
        simple-touch
 
+simple_notification_SOURCES =                  \
+       simple-notification.c                   \
+       notification-daemon-protocol.c          \
+       ../shared/os-compatibility.c            \
+       ../shared/os-compatibility.h
+simple_notification_CPPFLAGS = $(SIMPLE_CLIENT_CFLAGS)
+simple_notification_LDADD = $(SIMPLE_CLIENT_LIBS)
+
 simple_shm_SOURCES = simple-shm.c              \
        ../shared/os-compatibility.c            \
        ../shared/os-compatibility.h
@@ -197,6 +206,8 @@ BUILT_SOURCES =                                     \
        tablet-shell-protocol.c                 \
        subsurface-client-protocol.h            \
        subsurface-protocol.c                   \
+       notification-daemon-client-protocol.h   \
+       notification-daemon-protocol.c          \
        workspaces-client-protocol.h            \
        workspaces-protocol.c
 
diff --git a/clients/simple-notification.c b/clients/simple-notification.c
new file mode 100644
index 0000000..90a321b
--- /dev/null
+++ b/clients/simple-notification.c
@@ -0,0 +1,391 @@
+/*
+ * Copyright © 2011 Benjamin Franzke
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <signal.h>
+
+#include <wayland-client.h>
+#include "notification-daemon-client-protocol.h"
+#include "../shared/os-compatibility.h"
+
+struct display {
+       struct wl_display *display;
+       struct wl_registry *registry;
+       struct wl_compositor *compositor;
+       struct notification_daemon *notification_daemon;
+       struct wl_shm *shm;
+       uint32_t formats;
+};
+
+struct buffer {
+       struct wl_buffer *buffer;
+       void *shm_data;
+       int busy;
+};
+
+struct window {
+       struct display *display;
+       int width, height;
+       struct wl_surface *surface;
+       struct buffer buffers[2];
+       struct buffer *prev_buffer;
+       struct wl_callback *callback;
+};
+
+static void
+buffer_release(void *data, struct wl_buffer *buffer)
+{
+       struct buffer *mybuf = data;
+
+       mybuf->busy = 0;
+}
+
+static const struct wl_buffer_listener buffer_listener = {
+       buffer_release
+};
+
+static int
+create_shm_buffer(struct display *display, struct buffer *buffer,
+                 int width, int height, uint32_t format)
+{
+       struct wl_shm_pool *pool;
+       int fd, size, stride;
+       void *data;
+
+       stride = width * 4;
+       size = stride * height;
+
+       fd = os_create_anonymous_file(size);
+       if (fd < 0) {
+               fprintf(stderr, "creating a buffer file for %d B failed: %m\n",
+                       size);
+               return -1;
+       }
+
+       data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+       if (data == MAP_FAILED) {
+               fprintf(stderr, "mmap failed: %m\n");
+               close(fd);
+               return -1;
+       }
+
+       pool = wl_shm_create_pool(display->shm, fd, size);
+       buffer->buffer = wl_shm_pool_create_buffer(pool, 0,
+                                                  width, height,
+                                                  stride, format);
+       wl_buffer_add_listener(buffer->buffer, &buffer_listener, buffer);
+       wl_shm_pool_destroy(pool);
+       close(fd);
+
+       buffer->shm_data = data;
+
+       return 0;
+}
+
+static struct window *
+create_window(struct display *display, int width, int height)
+{
+       struct window *window;
+
+       window = calloc(1, sizeof *window);
+       if (!window)
+               return NULL;
+
+       window->callback = NULL;
+       window->display = display;
+       window->width = width;
+       window->height = height;
+       window->surface = wl_compositor_create_surface(display->compositor);
+       notification_daemon_add_surface(display->notification_daemon, 
window->surface);
+
+       return window;
+}
+
+static void
+destroy_window(struct window *window)
+{
+       if (window->callback)
+               wl_callback_destroy(window->callback);
+
+       if (window->buffers[0].buffer)
+               wl_buffer_destroy(window->buffers[0].buffer);
+       if (window->buffers[1].buffer)
+               wl_buffer_destroy(window->buffers[1].buffer);
+
+       wl_surface_destroy(window->surface);
+       free(window);
+}
+
+static struct buffer *
+window_next_buffer(struct window *window)
+{
+       struct buffer *buffer;
+       int ret = 0;
+
+       if (!window->buffers[0].busy)
+               buffer = &window->buffers[0];
+       else if (!window->buffers[1].busy)
+               buffer = &window->buffers[1];
+       else
+               return NULL;
+
+       if (!buffer->buffer) {
+               ret = create_shm_buffer(window->display, buffer,
+                                       window->width, window->height,
+                                       WL_SHM_FORMAT_XRGB8888);
+
+               if (ret < 0)
+                       return NULL;
+
+               /* paint the padding */
+               memset(buffer->shm_data, 0xff,
+                      window->width * window->height * 4);
+       }
+
+       return buffer;
+}
+
+static void
+paint_pixels(void *image, int padding, int width, int height, uint32_t time)
+{
+       const int halfh = padding + (height - padding * 2) / 2;
+       const int halfw = padding + (width  - padding * 2) / 2;
+       int ir, or;
+       uint32_t *pixel = image;
+       int y;
+
+       /* squared radii thresholds */
+       or = (halfw < halfh ? halfw : halfh) - 8;
+       ir = or - 32;
+       or *= or;
+       ir *= ir;
+
+       pixel += padding * width;
+       for (y = padding; y < height - padding; y++) {
+               int x;
+               int y2 = (y - halfh) * (y - halfh);
+
+               pixel += padding;
+               for (x = padding; x < width - padding; x++) {
+                       uint32_t v;
+
+                       /* squared distance from center */
+                       int r2 = (x - halfw) * (x - halfw) + y2;
+
+                       if (r2 < ir)
+                               v = (r2 / 32 + time / 64) * 0x0080401;
+                       else if (r2 < or)
+                               v = (y + time / 32) * 0x0080401;
+                       else
+                               v = (x + time / 16) * 0x0080401;
+                       v &= 0x00ffffff;
+
+                       /* cross if compositor uses X from XRGB as alpha */
+                       if (abs(x - y) > 6 && abs(x + y - height) > 6)
+                               v |= 0xff000000;
+
+                       *pixel++ = v;
+               }
+
+               pixel += padding;
+       }
+}
+
+static const struct wl_callback_listener frame_listener;
+
+static void
+redraw(void *data, struct wl_callback *callback, uint32_t time)
+{
+       struct window *window = data;
+       struct buffer *buffer;
+
+       buffer = window_next_buffer(window);
+       if (!buffer) {
+               fprintf(stderr,
+                       !callback ? "Failed to create the first buffer.\n" :
+                       "Both buffers busy at redraw(). Server bug?\n");
+               abort();
+       }
+
+       paint_pixels(buffer->shm_data, 20, window->width, window->height, time);
+
+       wl_surface_attach(window->surface, buffer->buffer, 0, 0);
+       wl_surface_damage(window->surface,
+                         20, 20, window->width - 40, window->height - 40);
+
+       if (callback)
+               wl_callback_destroy(callback);
+
+       window->callback = wl_surface_frame(window->surface);
+       wl_callback_add_listener(window->callback, &frame_listener, window);
+       wl_surface_commit(window->surface);
+       buffer->busy = 1;
+}
+
+static const struct wl_callback_listener frame_listener = {
+       redraw
+};
+
+static void
+shm_format(void *data, struct wl_shm *wl_shm, uint32_t format)
+{
+       struct display *d = data;
+
+       d->formats |= (1 << format);
+}
+
+struct wl_shm_listener shm_listenter = {
+       shm_format
+};
+
+static void
+registry_handle_global(void *data, struct wl_registry *registry,
+                      uint32_t id, const char *interface, uint32_t version)
+{
+       struct display *d = data;
+
+       if (strcmp(interface, "wl_compositor") == 0) {
+               d->compositor =
+                       wl_registry_bind(registry,
+                                        id, &wl_compositor_interface, 1);
+       } else if (strcmp(interface, "notification_daemon") == 0) {
+               d->notification_daemon = wl_registry_bind(registry,
+                                           id, &notification_daemon_interface, 
1);
+       } else if (strcmp(interface, "wl_shm") == 0) {
+               d->shm = wl_registry_bind(registry,
+                                         id, &wl_shm_interface, 1);
+               wl_shm_add_listener(d->shm, &shm_listenter, d);
+       }
+}
+
+static void
+registry_handle_global_remove(void *data, struct wl_registry *registry,
+                             uint32_t name)
+{
+}
+
+static const struct wl_registry_listener registry_listener = {
+       registry_handle_global,
+       registry_handle_global_remove
+};
+
+static struct display *
+create_display(void)
+{
+       struct display *display;
+
+       display = malloc(sizeof *display);
+       display->display = wl_display_connect(NULL);
+       assert(display->display);
+
+       display->formats = 0;
+       display->registry = wl_display_get_registry(display->display);
+       wl_registry_add_listener(display->registry,
+                                &registry_listener, display);
+       wl_display_roundtrip(display->display);
+       if (display->shm == NULL) {
+               fprintf(stderr, "No wl_shm global\n");
+               exit(1);
+       }
+       if (display->notification_daemon == NULL) {
+               fprintf(stderr, "No notification_daemon global\n");
+               exit(1);
+       }
+
+       wl_display_roundtrip(display->display);
+
+       if (!(display->formats & (1 << WL_SHM_FORMAT_XRGB8888))) {
+               fprintf(stderr, "WL_SHM_FORMAT_XRGB32 not available\n");
+               exit(1);
+       }
+
+       wl_display_get_fd(display->display);
+
+       return display;
+}
+
+static void
+destroy_display(struct display *display)
+{
+       if (display->shm)
+               wl_shm_destroy(display->shm);
+
+       if (display->notification_daemon)
+               notification_daemon_destroy(display->notification_daemon);
+
+       if (display->compositor)
+               wl_compositor_destroy(display->compositor);
+
+       wl_registry_destroy(display->registry);
+       wl_display_flush(display->display);
+       wl_display_disconnect(display->display);
+       free(display);
+}
+
+static int running = 1;
+
+static void
+signal_int(int signum)
+{
+       running = 0;
+}
+
+int
+main(int argc, char **argv)
+{
+       struct sigaction sigint;
+       struct display *display;
+       struct window *window;
+       int ret = 0;
+
+       display = create_display();
+       window = create_window(display, 250, 50);
+       if (!window)
+               return 1;
+
+       sigint.sa_handler = signal_int;
+       sigemptyset(&sigint.sa_mask);
+       sigint.sa_flags = SA_RESETHAND;
+       sigaction(SIGINT, &sigint, NULL);
+
+       /* Initialise damage to full surface, so the padding gets painted */
+       wl_surface_damage(window->surface, 0, 0,
+                         window->width, window->height);
+
+       redraw(window, NULL, 0);
+
+       while (running && ret != -1)
+               ret = wl_display_dispatch(display->display);
+
+       fprintf(stderr, "simple-notification exiting\n");
+       destroy_window(window);
+       destroy_display(display);
+
+       return 0;
+}
-- 
1.8.2.1

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