static void
set_success (CalibArea *area)
{
ClutterImage *image;
GdkPixbuf *icon = area->icon_success;
if (icon == NULL)
return;
image = CLUTTER_IMAGE (clutter_actor_get_content (area->success_image));
clutter_image_set_data (image,
gdk_pixbuf_get_pixels (icon),
gdk_pixbuf_get_has_alpha (icon)
? COGL_PIXEL_FORMAT_RGBA_8888
: COGL_PIXEL_FORMAT_RGB_888,
gdk_pixbuf_get_width (icon),
gdk_pixbuf_get_height (icon),
gdk_pixbuf_get_rowstride (icon),
NULL);
clutter_actor_set_size (area->success_image,
gdk_pixbuf_get_width (icon),
gdk_pixbuf_get_height (icon));
clutter_actor_show (area->success_image);
clutter_actor_hide (area->action_layer);
}
static ClutterActor *
create_content_actor (void)
{
ClutterActor *content;
ClutterContent *image;
GdkPixbuf *pixbuf;
content = clutter_actor_new ();
clutter_actor_set_size (content, 720, 720);
pixbuf = gdk_pixbuf_new_from_file (TESTS_DATADIR G_DIR_SEPARATOR_S "redhand.png", NULL);
image = clutter_image_new ();
clutter_image_set_data (CLUTTER_IMAGE (image),
gdk_pixbuf_get_pixels (pixbuf),
gdk_pixbuf_get_has_alpha (pixbuf)
? COGL_PIXEL_FORMAT_RGBA_8888
: COGL_PIXEL_FORMAT_RGB_888,
gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf),
gdk_pixbuf_get_rowstride (pixbuf),
NULL);
g_object_unref (pixbuf);
clutter_actor_set_content_scaling_filters (content,
CLUTTER_SCALING_FILTER_TRILINEAR,
CLUTTER_SCALING_FILTER_LINEAR);
clutter_actor_set_content_gravity (content, CLUTTER_CONTENT_GRAVITY_RESIZE_ASPECT);
clutter_actor_set_content (content, image);
g_object_unref (image);
return content;
}
static ClutterActor* do_marker_icon (gchar *name, int size)
{
GtkIconTheme *theme;
GtkIconInfo *icon_info;
GdkPixbuf *pixbuf;
ClutterActor *ret;
ClutterContent *icon;
ret = clutter_actor_new ();
theme = gtk_icon_theme_get_default ();
icon_info = gtk_icon_theme_lookup_icon (theme, name, size, 0);
if (icon_info != NULL) {
pixbuf = gdk_pixbuf_new_from_file (gtk_icon_info_get_filename (icon_info), NULL);
icon = clutter_image_new ();
clutter_image_set_data (CLUTTER_IMAGE (icon),
gdk_pixbuf_get_pixels (pixbuf),
gdk_pixbuf_get_has_alpha (pixbuf)
? COGL_PIXEL_FORMAT_RGBA_8888
: COGL_PIXEL_FORMAT_RGB_888,
gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf),
gdk_pixbuf_get_rowstride (pixbuf),
NULL);
g_object_unref (pixbuf);
clutter_actor_set_content (ret, icon);
g_object_unref (icon);
}
return ret;
}
gint
main (gint argc,
gchar *argv[])
{
ClutterContent *image;
ClutterActor *stage;
ClutterActor *box;
GdkPixbuf *pixbuf;
if (clutter_init(&argc, &argv) != CLUTTER_INIT_SUCCESS) {
g_printerr("Failed to initialize clutter.\n");
return 1;
}
stage = clutter_stage_new();
clutter_stage_set_title (CLUTTER_STAGE (stage), "Image Viewer");
clutter_actor_set_size(stage, 1400, 1200);
clutter_actor_set_position(stage, 100, 100);
g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
clutter_actor_show(stage);
pixbuf = gdk_pixbuf_new_from_file("testimage_8000.png", NULL);
g_assert(pixbuf);
image = clutter_image_new();
clutter_image_set_data(CLUTTER_IMAGE(image),
gdk_pixbuf_get_pixels(pixbuf),
gdk_pixbuf_get_has_alpha(pixbuf) ?
COGL_PIXEL_FORMAT_RGBA_8888 :
COGL_PIXEL_FORMAT_RGB_888,
gdk_pixbuf_get_width(pixbuf),
gdk_pixbuf_get_height(pixbuf),
gdk_pixbuf_get_rowstride(pixbuf),
NULL);
g_object_unref(pixbuf);
box = clutter_actor_new();
clutter_actor_set_position(box, 0, 0);
clutter_actor_set_height(box, 8000);
clutter_actor_set_width(box, 1200);
//clutter_actor_add_constraint(box, clutter_bind_constraint_new(stage, CLUTTER_BIND_WIDTH, 0.0));
clutter_actor_set_content(box, image);
clutter_actor_add_child(stage, box);
clutter_actor_show(box);
clutter_stage_set_fullscreen(CLUTTER_STAGE(stage), TRUE);
clutter_actor_animate(box,
CLUTTER_EASE_IN_OUT_QUAD,
4000,
"y", -8000.0,
NULL);
clutter_main();
return 0;
}
/* Set an empty image of size 1x1 pixels (e.g. when loading asynchronously) */
static void _xfdashboard_image_content_set_empty_image(XfdashboardImageContent *self)
{
static guchar empty[]={ 0, 0, 0, 0xff };
g_return_if_fail(XFDASHBOARD_IS_IMAGE_CONTENT(self));
clutter_image_set_data(CLUTTER_IMAGE(self),
empty,
COGL_PIXEL_FORMAT_RGBA_8888,
1, /* width */
1, /* height */
1, /* row-stride */
NULL);
}
ClutterActor *
ckd_slide_new_for_image (GFile *file)
{
CkdSlide *self = g_object_new (CKD_TYPE_SLIDE, NULL);
CkdSlidePriv *priv = CKD_SLIDE_GET_PRIVATE (self);
GdkPixbuf *pixbuf;
ClutterContent *image;
/* 载入图像数据 */
gchar *image_path = g_file_get_path (file);
pixbuf = gdk_pixbuf_new_from_file (image_path, NULL);
/* 获取图像尺寸 */
gfloat w = gdk_pixbuf_get_width (pixbuf);
gfloat h = gdk_pixbuf_get_height (pixbuf);
image = clutter_image_new ();
clutter_image_set_data (CLUTTER_IMAGE (image),
gdk_pixbuf_get_pixels (pixbuf),
gdk_pixbuf_get_has_alpha (pixbuf)
? COGL_PIXEL_FORMAT_RGBA_8888
: COGL_PIXEL_FORMAT_RGB_888,
(guint)w,
(guint)h,
gdk_pixbuf_get_rowstride (pixbuf),
NULL);
g_object_unref (pixbuf);
g_free (image_path);
priv->content = clutter_actor_new ();
clutter_actor_set_size (priv->content, w, h);
clutter_actor_set_content_scaling_filters (priv->content,
CLUTTER_SCALING_FILTER_TRILINEAR,
CLUTTER_SCALING_FILTER_LINEAR);
clutter_actor_set_content (priv->content, image);
g_object_unref (image);
clutter_actor_add_child (CLUTTER_ACTOR(self), priv->content);
return (ClutterActor *)self;
}
static void
on_video_frame (GFreenectDevice *kinect, gpointer user_data)
{
guchar *buffer;
GError *error = NULL;
GFreenectFrameMode frame_mode;
ClutterContent *content;
buffer = gfreenect_device_get_video_frame_rgb (kinect, NULL, &frame_mode);
content = clutter_actor_get_content (video_tex);
if (! clutter_image_set_data (CLUTTER_IMAGE (content),
buffer,
COGL_PIXEL_FORMAT_RGB_888,
frame_mode.width, frame_mode.height,
0,
&error))
{
g_debug ("Error setting texture area: %s", error->message);
g_error_free (error);
}
}
int
main (int argc, char *argv[])
{
ClutterActor *stage, *box, *bg, *icon, *emblem, *label;
ClutterLayoutManager *layout;
ClutterContent *canvas, *image;
ClutterColor *color;
ClutterAction *action;
GdkPixbuf *pixbuf;
if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
return 1;
/* prepare the stage */
stage = clutter_stage_new ();
clutter_stage_set_title (CLUTTER_STAGE (stage), "BinLayout");
clutter_actor_set_background_color (stage, CLUTTER_COLOR_Aluminium2);
clutter_actor_set_size (stage, 640, 480);
clutter_actor_show (stage);
g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
/* this is our BinLayout, with its default alignments */
layout = clutter_bin_layout_new (CLUTTER_BIN_ALIGNMENT_CENTER,
CLUTTER_BIN_ALIGNMENT_CENTER);
/* the main container; this actor will use the BinLayout to lay
* out its children; we use the anchor point to keep it centered
* on the same position even when we change its size
*/
box = clutter_actor_new ();
clutter_actor_set_layout_manager (box, layout);
clutter_actor_add_constraint (box, clutter_align_constraint_new (stage, CLUTTER_ALIGN_BOTH, 0.5));
clutter_actor_set_position (box, 320, 240);
clutter_actor_set_reactive (box, TRUE);
clutter_actor_set_name (box, "box");
clutter_actor_add_child (stage, box);
/* the background is drawn using a canvas content */
canvas = clutter_canvas_new ();
g_signal_connect (canvas, "draw", G_CALLBACK (on_canvas_draw), NULL);
clutter_canvas_set_size (CLUTTER_CANVAS (canvas), 200, 200);
/* this is the background actor; we want it to fill the whole
* of the allocation given to it by its parent
*/
bg = clutter_actor_new ();
clutter_actor_set_name (bg, "background");
clutter_actor_set_size (bg, 200, 200);
clutter_actor_set_content (bg, canvas);
clutter_actor_set_x_expand (bg, TRUE);
clutter_actor_set_y_expand (bg, TRUE);
clutter_actor_set_x_align (bg, CLUTTER_ACTOR_ALIGN_FILL);
clutter_actor_set_y_align (bg, CLUTTER_ACTOR_ALIGN_FILL);
clutter_actor_add_child (box, bg);
/* we use the ::transitions-completed signal to get notification
* of the end of the sizing animation; this allows us to redraw
* the canvas only once the animation has stopped
*/
g_signal_connect (box, "transitions-completed",
G_CALLBACK (redraw_canvas),
canvas);
/* we use GdkPixbuf to load an image from our data directory */
pixbuf = gdk_pixbuf_new_from_file (TESTS_DATADIR G_DIR_SEPARATOR_S "redhand.png", NULL);
image = clutter_image_new ();
clutter_image_set_data (CLUTTER_IMAGE (image),
gdk_pixbuf_get_pixels (pixbuf),
gdk_pixbuf_get_has_alpha (pixbuf)
? COGL_PIXEL_FORMAT_RGBA_8888
: COGL_PIXEL_FORMAT_RGB_888,
gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf),
gdk_pixbuf_get_rowstride (pixbuf),
NULL);
g_object_unref (pixbuf);
/* this is the icon; it's going to be centered inside the box actor.
* we use the content gravity to keep the aspect ratio of the image,
* and the scaling filters to get a better result when scaling the
* image down.
*/
icon = clutter_actor_new ();
clutter_actor_set_name (icon, "icon");
clutter_actor_set_size (icon, 196, 196);
clutter_actor_set_x_expand (icon, TRUE);
clutter_actor_set_y_expand (icon, TRUE);
clutter_actor_set_x_align (icon, CLUTTER_ACTOR_ALIGN_CENTER);
clutter_actor_set_y_align (icon, CLUTTER_ACTOR_ALIGN_CENTER);
clutter_actor_set_content_gravity (icon, CLUTTER_CONTENT_GRAVITY_RESIZE_ASPECT);
clutter_actor_set_content_scaling_filters (icon,
CLUTTER_SCALING_FILTER_TRILINEAR,
CLUTTER_SCALING_FILTER_LINEAR);
clutter_actor_set_content (icon, image);
clutter_actor_add_child (box, icon);
color = clutter_color_new (g_random_int_range (0, 255),
g_random_int_range (0, 255),
g_random_int_range (0, 255),
224);
/* this is the emblem: a small rectangle with a random color, that we
* want to put in the bottom right corner
*/
emblem = clutter_actor_new ();
clutter_actor_set_name (emblem, "emblem");
clutter_actor_set_size (emblem, 48, 48);
clutter_actor_set_background_color (emblem, color);
clutter_actor_set_x_expand (emblem, TRUE);
clutter_actor_set_y_expand (emblem, TRUE);
clutter_actor_set_x_align (emblem, CLUTTER_ACTOR_ALIGN_END);
clutter_actor_set_y_align (emblem, CLUTTER_ACTOR_ALIGN_END);
clutter_actor_set_reactive (emblem, TRUE);
clutter_actor_set_opacity (emblem, 0);
clutter_actor_add_child (box, emblem);
clutter_color_free (color);
/* when clicking on the emblem, we want to perform an action */
action = clutter_click_action_new ();
clutter_actor_add_action (emblem, action);
g_signal_connect (action, "clicked", G_CALLBACK (on_emblem_clicked), box);
g_signal_connect (action, "long-press", G_CALLBACK (on_emblem_long_press), box);
/* whenever the pointer enters the box, we show the emblem; we hide
* the emblem when the pointer leaves the box
*/
g_signal_connect (box,
"enter-event", G_CALLBACK (on_box_enter),
emblem);
g_signal_connect (box,
"leave-event", G_CALLBACK (on_box_leave),
emblem);
/* a label, that we want to position at the top and center of the box */
label = clutter_text_new ();
clutter_actor_set_name (label, "text");
clutter_text_set_text (CLUTTER_TEXT (label), "A simple test");
clutter_actor_set_x_expand (label, TRUE);
clutter_actor_set_x_align (label, CLUTTER_ACTOR_ALIGN_CENTER);
clutter_actor_set_y_expand (label, TRUE);
clutter_actor_set_y_align (label, CLUTTER_ACTOR_ALIGN_START);
clutter_actor_add_child (box, label);
clutter_main ();
return EXIT_SUCCESS;
}
/* Load image from file */
static void _xfdashboard_image_content_load_from_file(XfdashboardImageContent *self)
{
XfdashboardImageContentPrivate *priv;
gchar *lookupFilename;
gchar *filename;
g_return_if_fail(XFDASHBOARD_IS_IMAGE_CONTENT(self));
priv=self->priv;
filename=NULL;
/* Check if type of image is valid and all needed parameters are set */
g_return_if_fail(priv->type==XFDASHBOARD_IMAGE_TYPE_FILE);
g_return_if_fail(priv->iconName);
g_return_if_fail(priv->iconSize>0);
/* If path of icon filename is relative build absolute path by prefixing theme path ... */
if(!g_path_is_absolute(priv->iconName))
{
XfdashboardTheme *theme;
const gchar *themePath;
/* Get theme path */
theme=xfdashboard_application_get_theme();
g_object_ref(theme);
themePath=xfdashboard_theme_get_path(theme);
/* Build absolute path from theme path and given relative path to icon */
lookupFilename=g_build_filename(themePath, priv->iconName, NULL);
/* Release allocated resources */
g_object_unref(theme);
}
/* ... otherwise it is an absolute path already so just copy it */
else lookupFilename=g_strdup(priv->iconName);
/* If file does not exists then load fallback icon */
if(!g_file_test(lookupFilename, G_FILE_TEST_EXISTS))
{
GtkIconInfo *iconInfo;
g_warning(_("Icon file '%s' does not exist - trying fallback icon '%s'"),
priv->iconName,
priv->missingIconName);
iconInfo=gtk_icon_theme_lookup_icon(priv->iconTheme,
priv->missingIconName,
priv->iconSize,
#ifdef USE_GTK_BUILTIN_ICONS
GTK_ICON_LOOKUP_USE_BUILTIN);
#else
0);
#endif
if(!iconInfo)
{
g_error(_("Could not load fallback icon for file '%s'"), priv->iconName);
_xfdashboard_image_content_set_empty_image(self);
g_free(lookupFilename);
return;
}
/* Check if have to use built-in GdkPixbuf for icon ... */
filename=g_strdup(gtk_icon_info_get_filename(iconInfo));
#ifdef USE_GTK_BUILTIN_ICONS
if(!filename)
{
GdkPixbuf *iconPixbuf;
GError *error=NULL;
iconPixbuf=gtk_icon_info_get_builtin_pixbuf(iconInfo);
if(!clutter_image_set_data(CLUTTER_IMAGE(self),
gdk_pixbuf_get_pixels(iconPixbuf),
gdk_pixbuf_get_has_alpha(iconPixbuf) ? COGL_PIXEL_FORMAT_RGBA_8888 : COGL_PIXEL_FORMAT_RGB_888,
gdk_pixbuf_get_width(iconPixbuf),
gdk_pixbuf_get_height(iconPixbuf),
gdk_pixbuf_get_rowstride(iconPixbuf),
&error))
{
g_warning(_("Failed to load image data into content for icon '%s': %s"),
priv->iconName,
error ? error->message : _("Unknown error"));
if(error)
{
g_error_free(error);
error=NULL;
}
}
else g_debug("Loaded fallback icon for file '%s' from built-in pixbuf", priv->iconName);
g_object_unref(iconPixbuf);
}
#endif
/* Release allocated resources */
g_object_unref(iconInfo);
}
/* Callback when loading icon asynchronously has finished */
static void _xfdashboard_image_content_loading_async_callback(GObject *inSource, GAsyncResult *inResult, gpointer inUserData)
{
XfdashboardImageContent *self=XFDASHBOARD_IMAGE_CONTENT(inUserData);
XfdashboardImageContentPrivate *priv=self->priv;
GdkPixbuf *pixbuf;
GError *error=NULL;
priv->loadState=XFDASHBOARD_IMAGE_CONTENT_LOADING_STATE_LOADED_SUCCESSFULLY;
/* Get pixbuf loaded */
pixbuf=gdk_pixbuf_new_from_stream_finish(inResult, &error);
if(pixbuf)
{
/* Set image data into content */
if(!clutter_image_set_data(CLUTTER_IMAGE(self),
gdk_pixbuf_get_pixels(pixbuf),
gdk_pixbuf_get_has_alpha(pixbuf) ? COGL_PIXEL_FORMAT_RGBA_8888 : COGL_PIXEL_FORMAT_RGB_888,
gdk_pixbuf_get_width(pixbuf),
gdk_pixbuf_get_height(pixbuf),
gdk_pixbuf_get_rowstride(pixbuf),
&error))
{
g_warning(_("Failed to load image data into content for key '%s': %s"),
priv->key ? priv->key : "<nil>",
error ? error->message : _("Unknown error"));
if(error)
{
g_error_free(error);
error=NULL;
}
/* Set failed state and empty image */
_xfdashboard_image_content_set_empty_image(self);
priv->loadState=XFDASHBOARD_IMAGE_CONTENT_LOADING_STATE_LOADED_FAILED;
}
}
else
{
g_warning(_("Failed to load image for key '%s': %s"),
priv->key ? priv->key : "<nil>",
error ? error->message : _("Unknown error"));
if(error)
{
g_error_free(error);
error=NULL;
}
/* Set failed state and empty image */
_xfdashboard_image_content_set_empty_image(self);
priv->loadState=XFDASHBOARD_IMAGE_CONTENT_LOADING_STATE_LOADED_FAILED;
}
/* Release allocated resources */
if(pixbuf) g_object_unref(pixbuf);
/* Emit "loaded" signal if loading was successful ... */
if(priv->loadState==XFDASHBOARD_IMAGE_CONTENT_LOADING_STATE_LOADED_SUCCESSFULLY)
{
g_signal_emit(self, XfdashboardImageContentSignals[SIGNAL_LOADED], 0);
g_debug("Successfully loaded image for key '%s' asynchronously", priv->key ? priv->key : "<nil>");
}
/* ... or emit "loading-failed" signal if loading has failed. */
else
{
g_signal_emit(self, XfdashboardImageContentSignals[SIGNAL_LOADING_FAILED], 0);
g_debug("Failed to load image for key '%s' asynchronously", priv->key ? priv->key : "<nil>");
}
/* Now release the extra reference we took to keep this instance alive
* while loading asynchronously.
*/
g_object_unref(self);
}
static void
image_rendered_cb (GInputStream *stream, GAsyncResult *res, RendererData *data)
{
ChamplainTile *tile = data->tile;
gboolean error = TRUE;
GError *gerror = NULL;
ClutterActor *actor = NULL;
GdkPixbuf *pixbuf;
ClutterContent *content;
gfloat width, height;
pixbuf = gdk_pixbuf_new_from_stream_finish (res, NULL);
if (!pixbuf)
{
g_warning ("NULL pixbuf");
goto finish;
}
/* Load the image into clutter */
content = clutter_image_new ();
if (!clutter_image_set_data (CLUTTER_IMAGE (content),
gdk_pixbuf_get_pixels (pixbuf),
gdk_pixbuf_get_has_alpha (pixbuf)
? COGL_PIXEL_FORMAT_RGBA_8888
: COGL_PIXEL_FORMAT_RGB_888,
gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf),
gdk_pixbuf_get_rowstride (pixbuf),
&gerror))
{
if (gerror)
{
g_warning ("Unable to transfer to clutter: %s", gerror->message);
g_error_free (gerror);
}
g_object_unref (content);
goto finish;
}
clutter_content_get_preferred_size (content, &width, &height);
actor = clutter_actor_new ();
clutter_actor_set_size (actor, width, height);
clutter_actor_set_content (actor, content);
g_object_unref (content);
/* has to be set for proper opacity */
clutter_actor_set_offscreen_redirect (actor, CLUTTER_OFFSCREEN_REDIRECT_AUTOMATIC_FOR_OPACITY);
error = FALSE;
finish:
if (actor)
champlain_tile_set_content (tile, actor);
g_signal_emit_by_name (tile, "render-complete", data->data, data->size, error);
if (pixbuf)
g_object_unref (pixbuf);
g_object_unref (data->renderer);
g_object_unref (tile);
g_object_unref (stream);
g_free (data->data);
g_slice_free (RendererData, data);
}
static void
on_depth_frame (GFreenectDevice *kinect, gpointer user_data)
{
gboolean smoothing_enabled;
gint width, height;
gint dimension_factor;
guchar *grayscale_buffer;
guint16 *depth;
BufferInfo *buffer_info;
gsize len;
GError *error = NULL;
GFreenectFrameMode frame_mode;
ClutterContent *content;
depth = (guint16 *) gfreenect_device_get_depth_frame_raw (kinect,
&len,
&frame_mode);
width = frame_mode.width;
height = frame_mode.height;
g_object_get (skeleton, "dimension-reduction", &dimension_factor, NULL);
buffer_info = process_buffer (depth,
width,
height,
dimension_factor,
THRESHOLD_BEGIN,
THRESHOLD_END);
skeltrack_skeleton_track_joints (skeleton,
buffer_info->reduced_buffer,
buffer_info->reduced_width,
buffer_info->reduced_height,
NULL,
on_track_joints,
buffer_info);
content = clutter_actor_get_content (depth_tex);
if (!SHOW_SKELETON)
{
grayscale_buffer = create_grayscale_buffer (buffer_info,
dimension_factor);
if (depth_image == NULL)
depth_image = clutter_image_new ();
/* ref because we don't want it to be freed */
if (depth_canvas == content)
g_object_ref (depth_canvas);
clutter_actor_set_content (depth_tex, depth_image);
if (! clutter_image_set_data (CLUTTER_IMAGE (depth_image),
grayscale_buffer,
COGL_PIXEL_FORMAT_RGB_888,
width, height,
0,
&error))
{
g_debug ("Error setting texture area: %s", error->message);
g_error_free (error);
}
g_slice_free1 (width * height * sizeof (guchar) * 3, grayscale_buffer);
}
else {
/* ref because we don't want it to be freed */
if (depth_image && depth_image == content)
g_object_ref (depth_image);
clutter_actor_set_content (depth_tex, depth_canvas);
}
}
Animation::Animation(ClutterActor *stage, TCLControl *tcl) {
printf("Building animation tools...\n");
//====================
// On screen display:
// Build the Actor that will display what's going to the lights:
lightDisplay = clutter_actor_new();
// Build the color delegate for the lightDisplay's content/texture:
colors = clutter_image_new();
// Error object for GDK/Clutter calls that need them
error = NULL;
// Load image data from some other data source...:
// guchar *data =
// GdkPixbuf *pixbuf = gdk_pixbuf_new_from_data(data);
// Load image data from a file:
// const char *img_path = "./wut.png";
// GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file_at_size (img_path, WIDTH, HEIGHT, &error);
// Build the color buffer we'll store the actual colors in:
pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, WIDTH, HEIGHT);
pixels = gdk_pixbuf_get_pixels(pixbuf); // Grab it's pixels...
rowstride = gdk_pixbuf_get_rowstride(pixbuf); // figure out the width of the buffer...
// And put some RED into the buffer to start off with
for (int x = 0; x < WIDTH; x++) {
for (int y = 0; y < HEIGHT; y++) {
// Find the ADDRESS of each pixel in the pixbuf via the raw char buffer we built...
// and bind it to a pointer to a char...
unsigned char *pixel = &pixels[y * rowstride + x * 3];
// And directly update that memory location with a new color
// This AUTOMATICALLY updates the color of the pixbuf!
// It's just hitting the memory directly!
pixel[0] = 255;//red
pixel[1] = 0x0;//green
pixel[2] = 0x0;//blue
}
}
// Dump the colors from the color buffer into the ClutterContent delegate!
if (pixbuf != NULL) {
clutter_image_set_data(CLUTTER_IMAGE(colors),
gdk_pixbuf_get_pixels (pixbuf),
COGL_PIXEL_FORMAT_RGB_888,
gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf),
gdk_pixbuf_get_rowstride (pixbuf),
&error);
}
// Tell the lightDisplay that it's content should be whatever we've dumped in the content delegate:
clutter_actor_set_content(lightDisplay, colors);
// Define the size of the On Screen Display:
clutter_actor_set_x_expand(lightDisplay, TRUE);
clutter_actor_set_y_expand(lightDisplay, TRUE);
clutter_actor_set_position(lightDisplay, 0, WIDTH*(osd_scale+7)+WIDTH);
clutter_actor_set_size(lightDisplay, WIDTH, HEIGHT);
clutter_actor_set_scale(lightDisplay, osd_scale, osd_scale+7);
clutter_actor_set_rotation_angle(lightDisplay, CLUTTER_Z_AXIS, -90);
// Actually add that actor to the stage!
clutter_actor_add_child(stage, lightDisplay);
// Allow for UI events on this crazy thing!
clutter_actor_set_reactive(lightDisplay, TRUE);
// Wire up the event listener on this lightDisplay actor.
TouchData *touch_data;
touch_data = g_slice_new(TouchData); // reserve memory for it...
touch_data->lightDisplay = lightDisplay; // Place the button actor itself inside the struct
touch_data->tcl = tcl; // TCLControl *tcl is just a POINTER here (unlike in main.cpp)
touch_data->animationNumber = ¤tAnimation;
// Actually wire up the events and set up the data structs that the events need to operate:
g_signal_connect(lightDisplay, "touch-event", G_CALLBACK(handleTouchEvents), touch_data);
g_signal_connect(lightDisplay, "button-press-event", G_CALLBACK(handleTouchEvents), touch_data);
g_signal_connect(lightDisplay, "motion-event", G_CALLBACK(handleTouchEvents), touch_data);
g_signal_connect(lightDisplay, "button-release-event", G_CALLBACK(handleTouchEvents), touch_data);
// Set sane default values for the initial touch location
input_y = 0;
input_x = 0;
// End On screen display
//=============================
// Shader setup and wirings:
// Build the Actor that the shader will dump to directly:
shaderOutput = clutter_actor_new();
clutter_actor_set_position(shaderOutput, 0, 0);
clutter_actor_set_size(shaderOutput, WIDTH-1, HEIGHT);
clutter_actor_set_rotation_angle(shaderOutput, CLUTTER_Z_AXIS, -90);
clutter_actor_set_rotation_angle(shaderOutput, CLUTTER_Y_AXIS, 180);
clutter_actor_add_child(stage, shaderOutput);
// Allocate the memory for the shader output buffer:
// Figure out how big our buffer needs to be. *4 because four bytes per pixel (r, g, b, a) in shader land
int shaderBufferSize = WIDTH * HEIGHT * 4;
shaderBuffer = (guint8 *) malloc(shaderBufferSize); // malloc the buffer!!
// Double check that we built the buffer correctly.
if (shaderBuffer == NULL) {
printf("OOPS! malloc error!\n");
} else {
// printf("We malloc'd %i bytes for your shaderBuffer. It points at: %p\n", shaderBufferSize, shaderBuffer);
// printf(" The Rowstride on the shaderBuffer is %i\n", rowstride);
}
// init shader TEXTURES!
// Populate the noiseImage:
// const char *textureFile = "images/text_noise.png";
// audiopixbuf = gdk_pixbuf_new_from_file (textureFile, NULL);
// Init the audioImage that will store the FFT output for attaching to the actor
error = NULL;
audioImage = clutter_image_new ();
audiopixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, WIDTH, HEIGHT );
audioPixels = gdk_pixbuf_get_pixels(audiopixbuf); // Grab it's pixels...
audioRowstride = gdk_pixbuf_get_rowstride(audiopixbuf); // figure out the width of the buffer...
// Populate the audioImage with no data so we have a fresh start:
for (int x = 0; x < WIDTH; x++) {
for (int y = 0; y < HEIGHT; y++) {
// Find the ADDRESS of each pixel in the pixbuf via the raw char buffer we built...
// and bind it to a pointer to a char...
unsigned char *pixel = &audioPixels[y * audioRowstride + x * 3];
// And directly update that memory location with a new color
// This AUTOMATICALLY updates the color of the pixbuf!
// It's just hitting the memory directly!
pixel[0] = getrand(0,255);//((int)(samples[x]*max)) & 0xff; // low bits...
pixel[1] = getrand(0,255);//((int)(samples[x]*max)) & 0xff00; // high bits.
pixel[2] = getrand(0,255); // some random value could be used for noise...
}
}
// Actually load our color onto the actor
clutter_image_set_data (CLUTTER_IMAGE (audioImage),
gdk_pixbuf_get_pixels (audiopixbuf),
COGL_PIXEL_FORMAT_RGB_888,
gdk_pixbuf_get_width (audiopixbuf),
gdk_pixbuf_get_height (audiopixbuf),
gdk_pixbuf_get_rowstride (audiopixbuf),
&error);
// g_object_unref (audiopixbuf); // we want to reuse this... don't dereference that memory yet...
clutter_actor_set_content (shaderOutput, audioImage);
//clutter_actor_set_content_gravity (shaderOutput, CLUTTER_CONTENT_GRAVITY_TOP_RIGHT);
// audioTexture[0] = 0.25;
// srand(time(NULL));
// for (i=0; i<noiseTextureSize; i++) {
// noiseTexture[i] = getrandf();
// }
// Make sure we don't have a current shader so we don't break the update loop:
shaderLoaded = false;
currentSpeed = 100;
// Once we have all that set up, we still need to START THE ACTUAL ANIMATION!!
// To do that, we'll need to use the event chain/callback system we have been using so far.
// Get ready to hand this display chunk in to the animation event:
AnimationData *data;
data = g_slice_new(AnimationData); // reserve memory for it...
data->tcl = tcl; // tcl is an pointer to the main TCLControl object.
data->animationNumber = ¤tAnimation;
data->animationObject = this;
// The clutter timeline object takes a "duration" in milliseconds...
timeline = clutter_timeline_new(1);
g_signal_connect(timeline, "new-frame", G_CALLBACK(handleNewFrame), data);
// which will just continue repeating:
clutter_timeline_set_repeat_count(timeline, -1);
// This actually starts the timeline animation!
clutter_timeline_start(timeline);
// Generate the list of known shaders:
buildShaderList();
// Load the first shader so we do not get a black screen:
currentShader = 0; // Set the inital shader to load (usually, first in the directory)
updateCurrentShader();
}
// handleNewFrame is the function that is called ever 120 milliseconds via the timeline!
// This is where ALL animation updates will happen.
void Animation::handleNewFrame(ClutterTimeline *timeline, gint frame_num, gpointer user_data) {
// Rebuild the struct from the pointer we handed in:
AnimationData *data;
data = (AnimationData *) user_data;
TCLControl *tcl = data->tcl; // tcl is STILL a pointer to the main TCLControl object
Animation *animation = data->animationObject;
// Error object for GDK/Clutter calls that need them
error = NULL;
shaderAnimation(tcl);
// Send the updated color buffer to the strands
if (tcl->enabled) {
tcl->Update();
}
// Dump the colors from the color buffer into the ClutterContent delegate!
if (pixbuf != NULL) {
clutter_image_set_data(CLUTTER_IMAGE(colors),
gdk_pixbuf_get_pixels (pixbuf),
COGL_PIXEL_FORMAT_RGB_888,
gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf),
gdk_pixbuf_get_rowstride (pixbuf),
&error);
}
// clutter_actor_set_content(lightDisplay, colors); // Bind that delegate to the lightDisplay
// Update the shader uniforms:
// Populate the audioImage with the FFT data:
// executeFFT(audioPixels, audioRowstride);
// Actually load our FFT Texture colors onto the actor
// clutter_image_set_data (CLUTTER_IMAGE (audioImage),
// gdk_pixbuf_get_pixels (audiopixbuf),
// gdk_pixbuf_get_has_alpha (audiopixbuf)
// ? COGL_PIXEL_FORMAT_RGBA_8888
// : COGL_PIXEL_FORMAT_RGB_888,
// gdk_pixbuf_get_width (audiopixbuf),
// gdk_pixbuf_get_height (audiopixbuf),
// gdk_pixbuf_get_rowstride (audiopixbuf),
// &error);
// clutter_actor_set_content (shaderOutput, audioImage);
// Use the timeline delta to determine how much time to add to the clock:
int delta = clutter_timeline_get_delta(timeline);
if (animation->currentSpeed > 500 || animation->currentSpeed<-500) {
animation->currentSpeed = 100;
}
animationTime += delta/1000.0 * (animation->currentSpeed/100.0);
// printf("Current speed: %i, animation time: %f\n", animation->currentSpeed, animationTime);
// Update the random noiseImage:
// for (unsigned int i=0; i<noiseTextureSize; i++) {
// noiseTexture[i] = getrandf();
// }
if (animation->shaderLoaded ) { // Only update the shader when a shader is actually SET
clutter_shader_effect_set_uniform(CLUTTER_SHADER_EFFECT(shaderEffect), "iGlobalTime", G_TYPE_FLOAT, 1, animationTime);
clutter_shader_effect_set_uniform(CLUTTER_SHADER_EFFECT(shaderEffect), "iMouse", G_TYPE_FLOAT, 2, input_y*1.0, input_x*1.0);
}
}
