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gimp/plug-ins/common/animation-play.c

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/*
* Animation Playback plug-in version 0.98.8
*
* (c) Adam D. Moss : 1997-2000 : adam@gimp.org : adam@foxbox.org
*
* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
/*
* TODO:
* pdb interface - should we bother?
*
* speedups (caching? most bottlenecks seem to be in pixelrgns)
* -> do pixelrgns properly!
*
* write other half of the user interface (default timing, disposal &c)
*/
#include "config.h"
#include <string.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
#define PLUG_IN_PROC "plug-in-animationplay"
#define PLUG_IN_BINARY "animation-play"
#define DITHERTYPE GDK_RGB_DITHER_NORMAL
typedef enum
{
DISPOSE_UNDEFINED = 0x00,
DISPOSE_COMBINE = 0x01,
DISPOSE_REPLACE = 0x02
} DisposeType;
/* Declare local functions. */
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static void do_playback (void);
static void window_destroy (GtkWidget *widget);
static void play_callback (GtkToggleAction *action);
static void step_callback (GtkAction *action);
static void rewind_callback (GtkAction *action);
static void speed_up_callback (GtkAction *action);
static void speed_down_callback (GtkAction *action);
static void speed_reset_callback (GtkAction *action);
static void speedcombo_changed (GtkWidget *scombo,
gpointer data);
static gboolean repaint_sda (GtkWidget *darea,
GdkEventExpose *event,
gpointer data);
static gboolean repaint_da (GtkWidget *darea,
GdkEventExpose *event,
gpointer data);
static void render_frame (gint32 whichframe);
static void show_frame (void);
static void total_alpha_preview (guchar *ptr);
static void init_preview (void);
static void update_combobox (void);
static gdouble get_duration_factor (gint index);
/* tag util functions*/
static gint parse_ms_tag (const gchar *str);
static DisposeType parse_disposal_tag (const gchar *str);
static DisposeType get_frame_disposal (guint whichframe);
static guint32 get_frame_duration (guint whichframe);
static gboolean is_disposal_tag (const gchar *str,
DisposeType *disposal,
gint *taglength);
static gboolean is_ms_tag (const gchar *str,
gint *duration,
gint *taglength);
const GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
/* Global widgets'n'stuff */
static GtkWidget *window = NULL;
static GtkUIManager *ui_manager = NULL;
static guchar *preview_data = NULL;
static GtkWidget *drawing_area = NULL;
static GtkWidget *shape_drawing_area = NULL;
static guchar *shape_drawing_area_data = NULL;
static guchar *drawing_area_data = NULL;
static GtkWidget *progress;
static guint width, height;
static guchar *preview_alpha1_data;
static guchar *preview_alpha2_data;
static gint32 image_id;
static gint32 total_frames;
static guint frame_number;
static gint32 *layers;
static GimpDrawable *drawable;
static gboolean playing = FALSE;
static guint timer = 0;
static GimpImageBaseType imagetype;
static guchar *palette;
static gint ncolours;
static gint duration_index = 3;
/* for shaping */
typedef struct
{
gint x, y;
} CursorOffset;
static gchar *shape_preview_mask = NULL;
static GtkWidget *shape_window = NULL;
static GdkWindow *root_win = NULL;
static gboolean detached = FALSE;
static GtkWidget *speedcombo = NULL;
MAIN ()
static void
query (void)
{
static const GimpParamDef args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
{ GIMP_PDB_IMAGE, "image", "Input image" },
{ GIMP_PDB_DRAWABLE, "drawable", "Input drawable (unused)" }
};
gimp_install_procedure (PLUG_IN_PROC,
N_("Preview a GIMP layer-based animation"),
"",
"Adam D. Moss <adam@gimp.org>",
"Adam D. Moss <adam@gimp.org>",
"1997, 1998...",
N_("_Playback..."),
"RGB*, INDEXED*, GRAY*",
GIMP_PLUGIN,
G_N_ELEMENTS (args), 0,
args, NULL);
gimp_plugin_menu_register (PLUG_IN_PROC, "<Image>/Filters/Animation");
gimp_plugin_icon_register (PLUG_IN_PROC, GIMP_ICON_TYPE_STOCK_ID,
(const guint8 *) GTK_STOCK_MEDIA_PLAY);
}
static void
run (const gchar *name,
gint n_params,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[1];
GimpRunMode run_mode;
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
*nreturn_vals = 1;
*return_vals = values;
run_mode = param[0].data.d_int32;
INIT_I18N ();
if (run_mode == GIMP_RUN_NONINTERACTIVE && n_params != 3)
{
status = GIMP_PDB_CALLING_ERROR;
}
if (status == GIMP_PDB_SUCCESS)
{
image_id = param[1].data.d_image;
do_playback ();
if (run_mode != GIMP_RUN_NONINTERACTIVE)
gimp_displays_flush ();
}
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;
}
static void
reshape_from_bitmap (const gchar *bitmap)
{
static gchar *prev_bitmap = NULL;
if ((!prev_bitmap) ||
(memcmp (prev_bitmap, bitmap, (width * height) / 8 + height)))
{
GdkBitmap *shape_mask;
shape_mask = gdk_bitmap_create_from_data (gtk_widget_get_window (shape_window),
bitmap,
width, height);
gtk_widget_shape_combine_mask (shape_window, shape_mask, 0, 0);
g_object_unref (shape_mask);
if (!prev_bitmap)
prev_bitmap = g_malloc ((width * height) / 8 + height);
memcpy (prev_bitmap, bitmap, (width * height) / 8 + height);
}
}
static gboolean
popup_menu (GtkWidget *widget,
GdkEventButton *event)
{
GtkWidget *menu = gtk_ui_manager_get_widget (ui_manager, "/anim-play-popup");
gtk_menu_set_screen (GTK_MENU (menu), gtk_widget_get_screen (widget));
gtk_menu_popup (GTK_MENU (menu),
NULL, NULL, NULL, NULL,
event ? event->button : 0,
event ? event->time : gtk_get_current_event_time ());
return TRUE;
}
static gboolean
button_press (GtkWidget *widget,
GdkEventButton *event)
{
if (event->button == 3 && event->type == GDK_BUTTON_PRESS)
return popup_menu (widget, event);
return FALSE;
}
static gboolean
shape_pressed (GtkWidget *widget,
GdkEventButton *event)
{
if (button_press (widget, event))
return TRUE;
/* ignore double and triple click */
if (event->type == GDK_BUTTON_PRESS)
{
CursorOffset *p = g_object_get_data (G_OBJECT(widget), "cursor-offset");
if (!p)
return FALSE;
p->x = (gint) event->x;
p->y = (gint) event->y;
gtk_grab_add (widget);
gdk_pointer_grab (gtk_widget_get_window (widget), TRUE,
GDK_BUTTON_RELEASE_MASK |
GDK_BUTTON_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK,
NULL, NULL, 0);
gdk_window_raise (gtk_widget_get_window (widget));
}
return FALSE;
}
static gboolean
maybeblocked_expose (GtkWidget *widget,
GdkEventExpose *event)
{
if (playing)
return TRUE;
return repaint_sda (widget, event, NULL);
}
static gboolean
shape_released (GtkWidget *widget)
{
gtk_grab_remove (widget);
gdk_display_pointer_ungrab (gtk_widget_get_display (widget), 0);
gdk_flush ();
return FALSE;
}
static gboolean
shape_motion (GtkWidget *widget,
GdkEventMotion *event)
{
GdkModifierType mask;
gint xp, yp;
gdk_window_get_pointer (root_win, &xp, &yp, &mask);
/* if a button is still held by the time we process this event... */
if (mask & GDK_BUTTON1_MASK)
{
CursorOffset *p = g_object_get_data (G_OBJECT (widget), "cursor-offset");
if (!p)
return FALSE;
gtk_window_move (GTK_WINDOW (widget), xp - p->x, yp - p->y);
}
else /* the user has released all buttons */
{
shape_released (widget);
}
return FALSE;
}
static gboolean
repaint_da (GtkWidget *darea,
GdkEventExpose *event,
gpointer data)
{
GtkStyle *style = gtk_widget_get_style (darea);
gdk_draw_rgb_image (gtk_widget_get_window (darea),
style->white_gc,
0, 0, width, height,
(total_frames == 1) ? GDK_RGB_DITHER_MAX : DITHERTYPE,
drawing_area_data, width * 3);
return TRUE;
}
static gboolean
repaint_sda (GtkWidget *darea,
GdkEventExpose *event,
gpointer data)
{
GtkStyle *style = gtk_widget_get_style (darea);
gdk_draw_rgb_image (gtk_widget_get_window (darea),
style->white_gc,
0, 0, width, height,
(total_frames == 1) ? GDK_RGB_DITHER_MAX : DITHERTYPE,
shape_drawing_area_data, width * 3);
return TRUE;
}
static void
close_callback (GtkAction *action,
gpointer data)
{
gtk_widget_destroy (GTK_WIDGET (data));
}
static void
help_callback (GtkAction *action,
gpointer data)
{
gimp_standard_help_func (PLUG_IN_PROC, data);
}
static void
detach_callback (GtkToggleAction *action)
{
gboolean active = gtk_toggle_action_get_active (action);
if (active == detached)
{
g_warning ("detached state and toggle action got out of sync");
return;
}
detached = active;
if (detached)
{
/* Create a total-alpha buffer merely for the not-shaped
drawing area to now display. */
drawing_area_data = g_malloc (width * height * 3);
total_alpha_preview (drawing_area_data);
gtk_window_set_screen (GTK_WINDOW (shape_window),
gtk_widget_get_screen (drawing_area));
if (GTK_WIDGET_REALIZED (drawing_area))
{
gint x, y;
gdk_window_get_origin (gtk_widget_get_window (drawing_area), &x, &y);
gtk_window_move (GTK_WINDOW (shape_window), x + 6, y + 6);
}
gtk_widget_show (shape_window);
gdk_window_set_back_pixmap (gtk_widget_get_window (shape_drawing_area), NULL, TRUE);
memset (shape_preview_mask, 0, (width * height) / 8 + height);
render_frame (frame_number);
}
else
{
g_free (drawing_area_data);
drawing_area_data = shape_drawing_area_data;
render_frame (frame_number);
gtk_widget_hide (shape_window);
}
gtk_widget_queue_draw (drawing_area);
}
static GtkUIManager *
ui_manager_new (GtkWidget *window)
{
static GtkActionEntry actions[] =
{
{ "step", GTK_STOCK_MEDIA_NEXT,
N_("_Step"), NULL, N_("Step to next frame"),
G_CALLBACK (step_callback) },
{ "rewind", GTK_STOCK_MEDIA_REWIND,
NULL, NULL, N_("Rewind the animation"),
G_CALLBACK (rewind_callback) },
{ "help", GTK_STOCK_HELP,
NULL, NULL, NULL,
G_CALLBACK (help_callback) },
{ "close", GTK_STOCK_CLOSE,
NULL, "<control>W", NULL,
G_CALLBACK (close_callback)
},
{
"quit", GTK_STOCK_QUIT,
NULL, "<control>Q", NULL,
G_CALLBACK (close_callback)
},
{
"speed-up", NULL,
N_("Faster"), "<control>L", N_("Increase the speed of the animation"),
G_CALLBACK (speed_up_callback)
},
{
"speed-down", NULL,
N_("Slower"), "<control>J", N_("Decrease the speed of the animation"),
G_CALLBACK (speed_down_callback)
},
{
"speed-reset", NULL,
N_("Reset speed"), "<control>K", N_("Reset the speed of the animation"),
G_CALLBACK (speed_reset_callback)
}
};
static GtkToggleActionEntry toggle_actions[] =
{
{ "play", GTK_STOCK_MEDIA_PLAY,
NULL, NULL, N_("Start playback"),
G_CALLBACK (play_callback), FALSE },
{ "detach", GIMP_STOCK_DETACH,
N_("Detach"), NULL,
N_("Detach the animation from the dialog window"),
G_CALLBACK (detach_callback), FALSE }
};
GtkUIManager *ui_manager = gtk_ui_manager_new ();
GtkActionGroup *group = gtk_action_group_new ("Actions");
GError *error = NULL;
gtk_action_group_set_translation_domain (group, NULL);
gtk_action_group_add_actions (group,
actions,
G_N_ELEMENTS (actions),
window);
gtk_action_group_add_toggle_actions (group,
toggle_actions,
G_N_ELEMENTS (toggle_actions),
NULL);
gtk_window_add_accel_group (GTK_WINDOW (window),
gtk_ui_manager_get_accel_group (ui_manager));
gtk_accel_group_lock (gtk_ui_manager_get_accel_group (ui_manager));
gtk_ui_manager_insert_action_group (ui_manager, group, -1);
g_object_unref (group);
gtk_ui_manager_add_ui_from_string (ui_manager,
"<ui>"
" <toolbar name=\"anim-play-toolbar\">"
" <toolitem action=\"play\" />"
" <toolitem action=\"step\" />"
" <toolitem action=\"rewind\" />"
" <separator />"
" <toolitem action=\"detach\" />"
" <separator name=\"space\" />"
" <toolitem action=\"help\" />"
" </toolbar>"
" <accelerator action=\"close\" />"
" <accelerator action=\"quit\" />"
"</ui>",
-1, &error);
if (error)
{
g_warning ("error parsing ui: %s", error->message);
g_clear_error (&error);
}
gtk_ui_manager_add_ui_from_string (ui_manager,
"<ui>"
" <popup name=\"anim-play-popup\">"
" <menuitem action=\"play\" />"
" <menuitem action=\"step\" />"
" <menuitem action=\"rewind\" />"
" <separator />"
" <menuitem action=\"speed-down\" />"
" <menuitem action=\"speed-up\" />"
" <menuitem action=\"speed-reset\" />"
" <separator />"
" <menuitem action=\"detach\" />"
" <menuitem action=\"close\" />"
" </popup>"
"</ui>",
-1, &error);
if (error)
{
g_warning ("error parsing ui: %s", error->message);
g_clear_error (&error);
}
return ui_manager;
}
static void
build_dialog (GimpImageBaseType basetype,
gchar *imagename)
{
GtkWidget *toolbar;
GtkWidget *frame;
GtkWidget *main_vbox;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *abox;
GtkToolItem *item;
GtkAction *action;
GdkCursor *cursor;
gchar *name;
gint index;
gimp_ui_init (PLUG_IN_BINARY, TRUE);
name = g_strconcat (_("Animation Playback:"), " ", imagename, NULL);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), name);
gtk_window_set_role (GTK_WINDOW (window), "animation-playback");
g_free (name);
g_signal_connect (window, "destroy",
G_CALLBACK (window_destroy),
NULL);
g_signal_connect (window, "popup-menu",
G_CALLBACK (popup_menu),
NULL);
gimp_help_connect (window, gimp_standard_help_func, PLUG_IN_PROC, NULL);
ui_manager = ui_manager_new (window);
main_vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (window), main_vbox);
gtk_widget_show (main_vbox);
toolbar = gtk_ui_manager_get_widget (ui_manager, "/anim-play-toolbar");
gtk_box_pack_start (GTK_BOX (main_vbox), toolbar, FALSE, FALSE, 0);
gtk_widget_show (toolbar);
item =
GTK_TOOL_ITEM (gtk_ui_manager_get_widget (ui_manager,
"/anim-play-toolbar/space"));
gtk_separator_tool_item_set_draw (GTK_SEPARATOR_TOOL_ITEM (item), FALSE);
gtk_tool_item_set_expand (item, TRUE);
vbox = gtk_vbox_new (FALSE, 2);
gtk_box_pack_start (GTK_BOX (main_vbox), vbox, FALSE, FALSE, 0);
gtk_widget_show (vbox);
abox = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
gtk_box_pack_start (GTK_BOX (vbox), abox, TRUE, TRUE, 0);
gtk_widget_show (abox);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_container_add (GTK_CONTAINER (abox), frame);
gtk_widget_show (frame);
drawing_area = gtk_drawing_area_new ();
gtk_widget_set_size_request (drawing_area, width, height);
gtk_widget_add_events (drawing_area, GDK_BUTTON_PRESS_MASK);
gtk_container_add (GTK_CONTAINER (frame), drawing_area);
gtk_widget_show (drawing_area);
g_signal_connect (drawing_area, "button-press-event",
G_CALLBACK (button_press),
NULL);
hbox = gtk_hbox_new (FALSE, 2);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
speedcombo = gtk_combo_box_new_text ();
gtk_box_pack_start (GTK_BOX (hbox), speedcombo, FALSE, FALSE, 0);
gtk_widget_show (speedcombo);
for (index = 0; index < 7; index++)
{
gchar *text;
text = g_strdup_printf ("%g %%", 100.0 / get_duration_factor (index));
gtk_combo_box_append_text (GTK_COMBO_BOX (speedcombo), text);
g_free (text);
}
gtk_combo_box_set_active (GTK_COMBO_BOX (speedcombo), 3);
g_signal_connect (speedcombo, "changed",
G_CALLBACK (speedcombo_changed),
NULL);
gimp_help_set_help_data (speedcombo, _("Playback speed"), NULL);
progress = gtk_progress_bar_new ();
gtk_box_pack_start (GTK_BOX (hbox), progress, TRUE, TRUE, 0);
gtk_widget_show (progress);
if (total_frames < 2)
{
action = gtk_ui_manager_get_action (ui_manager,
"/ui/anim-play-toolbar/play");
gtk_action_set_sensitive (action, FALSE);
action = gtk_ui_manager_get_action (ui_manager,
"/ui/anim-play-toolbar/step");
gtk_action_set_sensitive (action, FALSE);
action = gtk_ui_manager_get_action (ui_manager,
"/ui/anim-play-toolbar/rewind");
gtk_action_set_sensitive (action, FALSE);
}
action = gtk_ui_manager_get_action (ui_manager,
"/anim-play-popup/speed-reset");
gtk_action_set_sensitive (action, FALSE);
gtk_widget_show (window);
/* let's get into shape. */
shape_window = gtk_window_new (GTK_WINDOW_POPUP);
shape_drawing_area = gtk_drawing_area_new ();
gtk_widget_set_size_request (shape_drawing_area, width, height);
gtk_container_add (GTK_CONTAINER (shape_window), shape_drawing_area);
gtk_widget_show (shape_drawing_area);
gtk_widget_add_events (shape_drawing_area, GDK_BUTTON_PRESS_MASK);
gtk_widget_realize (shape_window);
gdk_window_set_back_pixmap (gtk_widget_get_window (shape_window), NULL, FALSE);
cursor = gdk_cursor_new_for_display (gtk_widget_get_display (shape_window),
GDK_HAND2);
gdk_window_set_cursor (gtk_widget_get_window (shape_window), cursor);
gdk_cursor_unref (cursor);
g_signal_connect (shape_window, "button-press-event",
G_CALLBACK (shape_pressed),
NULL);
g_signal_connect (shape_window, "button-release-event",
G_CALLBACK (shape_released),
NULL);
g_signal_connect (shape_window, "motion-notify-event",
G_CALLBACK (shape_motion),
NULL);
g_object_set_data (G_OBJECT (shape_window),
"cursor-offset", g_new0 (CursorOffset, 1));
g_signal_connect (drawing_area, "expose-event",
G_CALLBACK (repaint_da),
NULL);
g_signal_connect (shape_drawing_area, "expose-event",
G_CALLBACK (maybeblocked_expose),
NULL);
root_win = gdk_get_default_root_window ();
}
static void
do_playback (void)
{
width = gimp_image_width (image_id);
height = gimp_image_height (image_id);
layers = gimp_image_get_layers (image_id, &total_frames);
imagetype = gimp_image_base_type (image_id);
if (imagetype == GIMP_INDEXED)
{
palette = gimp_image_get_colormap (image_id, &ncolours);
}
else if (imagetype == GIMP_GRAY)
{
gint i;
palette = g_new (guchar, 768);
for (i = 0; i < 256; i++)
palette[i * 3] = palette[i * 3 + 1] = palette[i * 3 + 2] = i;
ncolours = 256;
}
frame_number = 0;
/* cache hint "cache nothing", since we iterate over every
tile in every layer. */
gimp_tile_cache_size (0);
init_preview ();
build_dialog (gimp_image_base_type (image_id),
gimp_image_get_name (image_id));
/* Make sure that whole preview is dirtied with pure-alpha */
total_alpha_preview (preview_data);
render_frame (0);
show_frame ();
gtk_main ();
}
/* Rendering Functions */
static void
render_frame (gint32 whichframe)
{
GtkStyle *shape_style = gtk_widget_get_style (shape_drawing_area);
GtkStyle *drawing_style = gtk_widget_get_style (drawing_area);
GimpPixelRgn pixel_rgn;
static guchar *rawframe = NULL;
static gint rawwidth = 0, rawheight = 0, rawbpp = 0;
gint rawx = 0, rawy = 0;
guchar *srcptr;
guchar *destptr;
gint i, j, k; /* imaginative loop variables */
DisposeType dispose;
if (whichframe >= total_frames)
{
printf( "playback: Asked for frame number %d in a %d-frame animation!\n",
(int) (whichframe+1), (int) total_frames);
gimp_quit ();
}
drawable = gimp_drawable_get (layers[total_frames - (whichframe + 1)]);
/* Lame attempt to catch the case that a user has closed the image. */
if (!drawable)
{
gimp_message (_("Tried to display an invalid layer."));
gtk_main_quit ();
return;
}
dispose = get_frame_disposal (frame_number);
/* Image has been closed/etc since we got the layer list? */
/* FIXME - How do we tell if a gimp_drawable_get() fails? */
if (gimp_drawable_width (drawable->drawable_id) == 0)
gtk_widget_destroy (window);
if (((dispose == DISPOSE_REPLACE) || (whichframe == 0)) &&
gimp_drawable_has_alpha (drawable->drawable_id))
{
total_alpha_preview (preview_data);
}
/* only get a new 'raw' drawable-data buffer if this and
the previous raw buffer were different sizes */
if ((rawwidth * rawheight * rawbpp) !=
((gimp_drawable_width (drawable->drawable_id) *
gimp_drawable_height (drawable->drawable_id) *
gimp_drawable_bpp (drawable->drawable_id))))
{
if (rawframe != NULL)
g_free (rawframe);
rawframe = g_malloc ((gimp_drawable_width (drawable->drawable_id)) *
(gimp_drawable_height (drawable->drawable_id)) *
(gimp_drawable_bpp (drawable->drawable_id)));
}
rawwidth = gimp_drawable_width (drawable->drawable_id);
rawheight = gimp_drawable_height (drawable->drawable_id);
rawbpp = gimp_drawable_bpp (drawable->drawable_id);
/* Initialise and fetch the whole raw new frame */
gimp_pixel_rgn_init (&pixel_rgn, drawable,
0, 0, drawable->width, drawable->height,
FALSE, FALSE);
gimp_pixel_rgn_get_rect (&pixel_rgn, rawframe,
0, 0, drawable->width, drawable->height);
gimp_drawable_offsets (drawable->drawable_id, &rawx, &rawy);
/* render... */
switch (imagetype)
{
case GIMP_RGB:
if ((rawwidth == width) &&
(rawheight == height) &&
(rawx == 0) &&
(rawy == 0))
{
/* --- These cases are for the best cases, in --- */
/* --- which this frame is the same size and position --- */
/* --- as the preview buffer itself --- */
if (gimp_drawable_has_alpha (drawable->drawable_id))
{
destptr = preview_data;
srcptr = rawframe;
i = rawwidth * rawheight;
while (i--)
{
if (! (srcptr[3] & 128))
{
srcptr += 4;
destptr += 3;
continue;
}
*(destptr++) = *(srcptr++);
*(destptr++) = *(srcptr++);
*(destptr++) = *(srcptr++);
srcptr++;
}
/* calculate the shape mask */
if (detached)
{
srcptr = rawframe + 3;
for (j = 0; j < rawheight; j++)
{
k = j * ((7 + rawwidth) / 8);
for (i = 0; i < rawwidth; i++)
{
if ((*srcptr) & 128)
shape_preview_mask[k + i/8] |= (1 << (i&7));
srcptr += 4;
}
}
}
}
else /* no alpha */
{
if ((rawwidth == width) && (rawheight == height))
memcpy (preview_data, rawframe, width * height * 3);
if (detached)
{
/* opacify the shape mask */
memset (shape_preview_mask, 255,
(rawwidth * rawheight) / 8 + rawheight);
}
}
/* Display the preview buffer... finally. */
if (detached)
{
reshape_from_bitmap (shape_preview_mask);
gdk_draw_rgb_image (gtk_widget_get_window (shape_drawing_area),
shape_style->white_gc,
0, 0, width, height,
(total_frames == 1 ?
GDK_RGB_DITHER_MAX : DITHERTYPE),
preview_data, width * 3);
}
else
{
reshape_from_bitmap (shape_preview_mask);
gdk_draw_rgb_image (gtk_widget_get_window (drawing_area),
drawing_style->white_gc,
0, 0, width, height,
(total_frames == 1 ?
GDK_RGB_DITHER_MAX : DITHERTYPE),
preview_data, width * 3);
}
}
else
{
/* --- These are suboptimal catch-all cases for when --- */
/* --- this frame is bigger/smaller than the preview --- */
/* --- buffer, and/or offset within it. --- */
if (gimp_drawable_has_alpha (drawable->drawable_id))
{
srcptr = rawframe;
for (j = rawy; j < rawheight + rawy; j++)
{
for (i = rawx; i < rawwidth + rawx; i++)
{
if ((i >= 0 && i < width) &&
(j >= 0 && j < height))
{
if (srcptr[3] & 128)
{
preview_data[(j * width + i) * 3 ] = *(srcptr);
preview_data[(j * width + i) * 3 + 1] = *(srcptr + 1);
preview_data[(j * width + i) * 3 + 2] = *(srcptr + 2);
}
}
srcptr += 4;
}
}
if (detached)
{
srcptr = rawframe + 3;
for (j = rawy; j < rawheight + rawy; j++)
{
k = j * ((width + 7) / 8);
for (i = rawx; i < rawwidth + rawx; i++)
{
if ((i>=0 && i<width) &&
(j>=0 && j<height))
{
if ((*srcptr) & 128)
shape_preview_mask[k + i/8] |= (1 << (i&7));
}
srcptr += 4;
}
}
}
}
else
{
/* noalpha */
srcptr = rawframe;
for (j = rawy; j < rawheight + rawy; j++)
{
for (i = rawx; i < rawwidth + rawx; i++)
{
if ((i >= 0 && i < width) &&
(j >= 0 && j < height))
{
preview_data[(j * width + i) * 3 ] = *(srcptr);
preview_data[(j * width + i) * 3 + 1] = *(srcptr + 1);
preview_data[(j * width + i) * 3 + 2] = *(srcptr + 2);
}
srcptr += 3;
}
}
}
/* Display the preview buffer... finally. */
if (detached)
{
if ((dispose != DISPOSE_REPLACE) && (whichframe != 0))
{
gint top = MAX (rawy, 0);
gint bottom = MIN (rawy + rawheight, height);
reshape_from_bitmap (shape_preview_mask);
gdk_draw_rgb_image (gtk_widget_get_window (shape_drawing_area),
shape_style->white_gc,
0, top, width, bottom - top,
(total_frames == 1 ?
GDK_RGB_DITHER_MAX : DITHERTYPE),
preview_data + 3 * top * width,
width * 3);
}
else
{
reshape_from_bitmap (shape_preview_mask);
gdk_draw_rgb_image (gtk_widget_get_window (shape_drawing_area),
shape_style->white_gc,
0, 0, width, height,
(total_frames == 1 ?
GDK_RGB_DITHER_MAX : DITHERTYPE),
preview_data, width * 3);
}
}
else
{
if ((dispose != DISPOSE_REPLACE) && (whichframe != 0))
{
gint top = MAX (rawy, 0);
gint bottom = MIN (rawy + rawheight, height);
gdk_draw_rgb_image (gtk_widget_get_window (drawing_area),
drawing_style->white_gc,
0, top, width, bottom - top,
(total_frames == 1 ?
GDK_RGB_DITHER_MAX : DITHERTYPE),
preview_data + 3 * top * width,
width * 3);
}
else
{
gdk_draw_rgb_image (gtk_widget_get_window (drawing_area),
drawing_style->white_gc,
0, 0, width, height,
(total_frames == 1 ?
GDK_RGB_DITHER_MAX : DITHERTYPE),
preview_data, width * 3);
}
}
}
break;
case GIMP_GRAY:
case GIMP_INDEXED:
if ((rawwidth == width) &&
(rawheight == height) &&
(rawx == 0) &&
(rawy == 0))
{
/* --- These cases are for the best cases, in --- */
/* --- which this frame is the same size and position --- */
/* --- as the preview buffer itself --- */
if (gimp_drawable_has_alpha (drawable->drawable_id))
{
destptr = preview_data;
srcptr = rawframe;
i = rawwidth * rawheight;
while (i--)
{
if (! srcptr[1])
{
srcptr += 2;
destptr += 3;
continue;
}
*(destptr++) = palette[0 + 3 * (*(srcptr))];
*(destptr++) = palette[1 + 3 * (*(srcptr))];
*(destptr++) = palette[2 + 3 * (*(srcptr))];
srcptr+=2;
}
/* calculate the shape mask */
if (detached)
{
srcptr = rawframe + 1;
for (j = 0; j < rawheight; j++)
{
k = j * ((7 + rawwidth) / 8);
for (i = 0; i < rawwidth; i++)
{
if (*srcptr)
shape_preview_mask[k + i/8] |= (1 << (i&7));
srcptr += 2;
}
}
}
}
else /* no alpha */
{
destptr = preview_data;
srcptr = rawframe;
i = rawwidth * rawheight;
while (--i)
{
*(destptr++) = palette[0 + 3 * (*(srcptr))];
*(destptr++) = palette[1 + 3 * (*(srcptr))];
*(destptr++) = palette[2 + 3 * (*(srcptr))];
srcptr++;
}
if (detached)
{
/* opacify the shape mask */
memset (shape_preview_mask, 255,
(rawwidth * rawheight) / 8 + rawheight);
}
}
/* Display the preview buffer... finally. */
if (detached)
{
reshape_from_bitmap (shape_preview_mask);
gdk_draw_rgb_image (gtk_widget_get_window (shape_drawing_area),
shape_style->white_gc,
0, 0, width, height,
(total_frames == 1 ?
GDK_RGB_DITHER_MAX : DITHERTYPE),
preview_data, width * 3);
}
else
{
gdk_draw_rgb_image (gtk_widget_get_window (drawing_area),
drawing_style->white_gc,
0, 0, width, height,
(total_frames == 1 ?
GDK_RGB_DITHER_MAX : DITHERTYPE),
preview_data, width * 3);
}
}
else
{
/* --- These are suboptimal catch-all cases for when --- */
/* --- this frame is bigger/smaller than the preview --- */
/* --- buffer, and/or offset within it. --- */
if (gimp_drawable_has_alpha (drawable->drawable_id))
{
srcptr = rawframe;
for (j = rawy; j < rawheight + rawy; j++)
{
for (i = rawx; i < rawwidth + rawx; i++)
{
if ((i >= 0 && i < width) &&
(j >= 0 && j < height))
{
if (*(srcptr+1))
{
preview_data[(j * width + i) * 3 + 0] =
palette[0 + 3 * (*(srcptr))];
preview_data[(j * width + i) * 3 + 1] =
palette[1 + 3 * (*(srcptr))];
preview_data[(j * width + i) * 3 + 2] =
palette[2 + 3 * (*(srcptr))];
}
}
srcptr += 2;
}
}
if (detached)
{
srcptr = rawframe + 1;
for (j=rawy; j<rawheight+rawy; j++)
{
k = j * ((width + 7) / 8);
for (i = rawx; i < rawwidth + rawx; i++)
{
if ((i >= 0 && i < width) &&
(j >= 0 && j < height))
{
if (*srcptr)
shape_preview_mask[k + i/8] |= (1 << (i&7));
}
srcptr += 2;
}
}
}
}
else
{
/* noalpha */
srcptr = rawframe;
for (j = rawy; j < rawheight + rawy; j++)
{
for (i = rawx; i < rawwidth + rawx; i++)
{
if ((i >= 0 && i < width) &&
(j >= 0 && j < height))
{
preview_data[(j * width + i) * 3 + 0] =
palette[0 + 3 * (*(srcptr))];
preview_data[(j * width + i) * 3 + 1] =
palette[1 + 3 * (*(srcptr))];
preview_data[(j * width + i) * 3 + 2] =
palette[2 + 3 * (*(srcptr))];
}
srcptr ++;
}
}
}
/* Display the preview buffer... finally. */
if (detached)
{
if ((dispose != DISPOSE_REPLACE) && (whichframe != 0))
{
gint top = MAX (rawy, 0);
gint bottom = MIN (rawy + rawheight, height);
reshape_from_bitmap (shape_preview_mask);
gdk_draw_rgb_image (gtk_widget_get_window (shape_drawing_area),
shape_style->white_gc,
0, top, width, bottom - top,
(total_frames == 1 ?
GDK_RGB_DITHER_MAX : DITHERTYPE),
preview_data + 3 * top * width,
width * 3);
}
else
{
reshape_from_bitmap (shape_preview_mask);
gdk_draw_rgb_image (gtk_widget_get_window (shape_drawing_area),
shape_style->white_gc,
0, 0, width, height,
(total_frames == 1 ?
GDK_RGB_DITHER_MAX : DITHERTYPE),
preview_data, width * 3);
}
}
else
{
if ((dispose != DISPOSE_REPLACE) && (whichframe != 0))
{
gint top = MAX (rawy, 0);
gint bottom = MIN (rawy + rawheight, height);
gdk_draw_rgb_image (gtk_widget_get_window (drawing_area),
drawing_style->white_gc,
0, top, width, bottom - top,
(total_frames == 1 ?
GDK_RGB_DITHER_MAX : DITHERTYPE),
preview_data + 3 * top * width,
width * 3);
}
else
{
gdk_draw_rgb_image (gtk_widget_get_window (drawing_area),
drawing_style->white_gc,
0, 0, width, height,
(total_frames == 1 ?
GDK_RGB_DITHER_MAX : DITHERTYPE),
preview_data, width * 3);
}
}
}
break;
}
/* clean up */
gimp_drawable_detach (drawable);
}
static void
show_frame (void)
{
gchar *text;
/* update the dialog's progress bar */
gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (progress),
((gfloat) frame_number /
(gfloat) (total_frames - 0.999)));
text = g_strdup_printf (_("Frame %d of %d"), frame_number + 1, total_frames);
gtk_progress_bar_set_text (GTK_PROGRESS_BAR (progress), text);
g_free (text);
}
static void
init_preview (void)
{
gint i;
preview_data = g_malloc (width * height * 3);
shape_preview_mask = g_malloc ((width * height) / 8 + 1 + height);
preview_alpha1_data = g_malloc (width * 3);
preview_alpha2_data = g_malloc (width * 3);
for (i = 0; i < width; i++)
{
if (i & 8)
{
preview_alpha1_data[i*3 + 0] =
preview_alpha1_data[i*3 + 1] =
preview_alpha1_data[i*3 + 2] = 102;
preview_alpha2_data[i*3 + 0] =
preview_alpha2_data[i*3 + 1] =
preview_alpha2_data[i*3 + 2] = 154;
}
else
{
preview_alpha1_data[i*3 + 0] =
preview_alpha1_data[i*3 + 1] =
preview_alpha1_data[i*3 + 2] = 154;
preview_alpha2_data[i*3 + 0] =
preview_alpha2_data[i*3 + 1] =
preview_alpha2_data[i*3 + 2] = 102;
}
}
drawing_area_data = preview_data;
shape_drawing_area_data = preview_data;
}
static void
total_alpha_preview (guchar *ptr)
{
gint i;
for (i = 0; i < height; i++)
{
if (i & 8)
memcpy (&ptr[i * 3 * width], preview_alpha1_data, 3 * width);
else
memcpy (&ptr[i * 3 * width], preview_alpha2_data, 3 * width);
}
}
/* Util. */
static void
remove_timer (void)
{
if (timer)
{
g_source_remove (timer);
timer = 0;
}
}
static void
do_step (void)
{
frame_number = (frame_number + 1) % total_frames;
render_frame (frame_number);
}
/* Callbacks */
static void
window_destroy (GtkWidget *widget)
{
if (playing)
remove_timer ();
if (shape_window)
gtk_widget_destroy (GTK_WIDGET (shape_window));
gtk_main_quit ();
}
static gint
advance_frame_callback (gpointer data)
{
gdouble duration;
remove_timer();
duration = get_frame_duration ((frame_number + 1) % total_frames);
timer = g_timeout_add (duration * get_duration_factor (duration_index),
advance_frame_callback, NULL);
do_step ();
show_frame ();
return FALSE;
}
static void
play_callback (GtkToggleAction *action)
{
if (playing)
remove_timer ();
playing = gtk_toggle_action_get_active (action);
if (playing)
timer = g_timeout_add (get_frame_duration (frame_number) *
get_duration_factor (duration_index),
advance_frame_callback, NULL);
g_object_set (action,
"tooltip", playing ? _("Stop playback") : _("Start playback"),
NULL);
}
static gdouble
get_duration_factor (gint index)
{
switch (index)
{
case 0:
return 0.125;
case 1:
return 0.25;
case 2:
return 0.5;
case 3:
return 1.0;
case 4:
return 2.0;
case 5:
return 4.0;
case 6:
return 8.0;
default:
return 1.0;
}
}
static void
step_callback (GtkAction *action)
{
if (playing)
gtk_action_activate (gtk_ui_manager_get_action (ui_manager,
"/anim-play-toolbar/play"));
do_step();
show_frame();
}
static void
rewind_callback (GtkAction *action)
{
if (playing)
gtk_action_activate (gtk_ui_manager_get_action (ui_manager,
"/anim-play-toolbar/play"));
frame_number = 0;
render_frame (frame_number);
show_frame ();
}
static void
speed_up_callback (GtkAction *action)
{
if (duration_index > 0)
--duration_index;
gtk_action_set_sensitive (action, duration_index > 0);
action = gtk_ui_manager_get_action (ui_manager,
"/anim-play-popup/speed-reset");
gtk_action_set_sensitive (action, duration_index != 3);
action = gtk_ui_manager_get_action (ui_manager,
"/anim-play-popup/speed-down");
gtk_action_set_sensitive (action, TRUE);
update_combobox ();
}
static void
speed_down_callback (GtkAction *action)
{
if (duration_index < 6)
++duration_index;
gtk_action_set_sensitive (action, duration_index < 6);
action = gtk_ui_manager_get_action (ui_manager,
"/anim-play-popup/speed-reset");
gtk_action_set_sensitive (action, duration_index != 3);
action = gtk_ui_manager_get_action (ui_manager,
"/anim-play-popup/speed-up");
gtk_action_set_sensitive (action, TRUE);
update_combobox ();
}
static void
speed_reset_callback (GtkAction *action)
{
duration_index = 3;
gtk_action_set_sensitive (action, FALSE);
action = gtk_ui_manager_get_action (ui_manager,
"/anim-play-popup/speed-down");
gtk_action_set_sensitive (action, TRUE);
action = gtk_ui_manager_get_action (ui_manager,
"/anim-play-popup/speed-up");
gtk_action_set_sensitive (action, TRUE);
update_combobox ();
}
static void
speedcombo_changed (GtkWidget *scombo, gpointer data)
{
GtkAction * action;
duration_index = gtk_combo_box_get_active (GTK_COMBO_BOX (scombo));
action = gtk_ui_manager_get_action (ui_manager,
"/anim-play-popup/speed-reset");
gtk_action_set_sensitive (action, duration_index != 3);
action = gtk_ui_manager_get_action (ui_manager,
"/anim-play-popup/speed-down");
gtk_action_set_sensitive (action, duration_index < 6);
action = gtk_ui_manager_get_action (ui_manager,
"/anim-play-popup/speed-up");
gtk_action_set_sensitive (action, duration_index > 0);
}
static void
update_combobox (void)
{
gtk_combo_box_set_active (GTK_COMBO_BOX (speedcombo), duration_index);
}
/* tag util. */
static DisposeType
get_frame_disposal (guint whichframe)
{
DisposeType disposal;
gchar *layer_name;
layer_name = gimp_drawable_get_name (layers[total_frames-(whichframe+1)]);
disposal = parse_disposal_tag (layer_name);
g_free (layer_name);
return disposal;
}
static guint32
get_frame_duration (guint whichframe)
{
gchar *layer_name;
gint duration = 0;
layer_name = gimp_drawable_get_name (layers[total_frames-(whichframe+1)]);
if (layer_name)
{
duration = parse_ms_tag (layer_name);
g_free (layer_name);
}
if (duration < 0) duration = 100; /* FIXME for default-if-not-said */
else
if (duration == 0) duration = 100; /* FIXME - 0-wait is nasty */
return (guint32) duration;
}
static gboolean
is_ms_tag (const gchar *str,
gint *duration,
gint *taglength)
{
gint sum = 0;
gint offset;
gint length;
length = strlen(str);
if (str[0] != '(')
return FALSE;
offset = 1;
/* eat any spaces between open-parenthesis and number */
while ((offset < length) && (str[offset] == ' '))
offset++;
if ((offset>=length) || (!g_ascii_isdigit (str[offset])))
return FALSE;
do
{
sum *= 10;
sum += str[offset] - '0';
offset++;
}
while ((offset<length) && (g_ascii_isdigit (str[offset])));
if (length - offset <= 2)
return FALSE;
/* eat any spaces between number and 'ms' */
while ((offset < length) && (str[offset] == ' '))
offset++;
if (length - offset <= 2 ||
g_ascii_toupper (str[offset]) != 'M' ||
g_ascii_toupper (str[offset + 1]) != 'S')
return FALSE;
offset += 2;
/* eat any spaces between 'ms' and close-parenthesis */
while ((offset < length) && (str[offset] == ' '))
offset++;
if ((length - offset < 1) || (str[offset] != ')'))
return FALSE;
offset++;
*duration = sum;
*taglength = offset;
return TRUE;
}
static gint
parse_ms_tag (const gchar *str)
{
gint i;
gint length = strlen (str);
for (i = 0; i < length; i++)
{
gint rtn;
gint dummy;
if (is_ms_tag (&str[i], &rtn, &dummy))
return rtn;
}
return -1;
}
static gboolean
is_disposal_tag (const gchar *str,
DisposeType *disposal,
gint *taglength)
{
if (strlen (str) != 9)
return FALSE;
if (strncmp (str, "(combine)", 9) == 0)
{
*taglength = 9;
*disposal = DISPOSE_COMBINE;
return TRUE;
}
else if (strncmp (str, "(replace)", 9) == 0)
{
*taglength = 9;
*disposal = DISPOSE_REPLACE;
return TRUE;
}
return FALSE;
}
static DisposeType
parse_disposal_tag (const gchar *str)
{
gint i;
gint length = strlen (str);
for (i = 0; i < length; i++)
{
DisposeType rtn;
gint dummy;
if (is_disposal_tag (&str[i], &rtn, &dummy))
return rtn;
}
return DISPOSE_UNDEFINED; /* FIXME */
}
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