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/*
* libopenraw - gdkpixbuf.c
*
* Copyright (C) 2006-2007 Hubert Figuiere
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
/** @brief gdkpixbuf support */
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <libopenraw/thumbnails.h>
#include <libopenraw/rawfile.h>
#include <libopenraw-gnome/gdkpixbuf.h>
static void pixbuf_free(guchar * data, gpointer u)
{
(void)u;
free(data);
}
static GdkPixbuf *rotate_pixbuf(GdkPixbuf *tmp, int32_t orientation)
{
GdkPixbuf *pixbuf = NULL;
switch(orientation) {
case 0:
case 1:
pixbuf = tmp;
break;
case 2:
pixbuf = gdk_pixbuf_flip(tmp, TRUE);
gdk_pixbuf_unref(tmp);
break;
case 3:
pixbuf = gdk_pixbuf_rotate_simple(tmp, GDK_PIXBUF_ROTATE_UPSIDEDOWN);
gdk_pixbuf_unref(tmp);
break;
case 4:
pixbuf = gdk_pixbuf_rotate_simple(tmp, GDK_PIXBUF_ROTATE_UPSIDEDOWN);
gdk_pixbuf_unref(tmp);
tmp = pixbuf;
pixbuf = gdk_pixbuf_flip(tmp, TRUE);
gdk_pixbuf_unref(tmp);
break;
case 5:
pixbuf = gdk_pixbuf_rotate_simple(tmp, GDK_PIXBUF_ROTATE_CLOCKWISE);
gdk_pixbuf_unref(tmp);
tmp = pixbuf;
pixbuf = gdk_pixbuf_flip(tmp, FALSE);
gdk_pixbuf_unref(tmp);
break;
case 6:
pixbuf = gdk_pixbuf_rotate_simple(tmp, GDK_PIXBUF_ROTATE_CLOCKWISE);
gdk_pixbuf_unref(tmp);
break;
case 7:
pixbuf = gdk_pixbuf_rotate_simple(tmp, GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE);
gdk_pixbuf_unref(tmp);
tmp = pixbuf;
pixbuf = gdk_pixbuf_flip(tmp, FALSE);
gdk_pixbuf_unref(tmp);
break;
case 8:
pixbuf = gdk_pixbuf_rotate_simple(tmp, GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE);
gdk_pixbuf_unref(tmp);
break;
default:
break;
}
return pixbuf;
}
static GdkPixbuf *_or_thumbnail_to_pixbuf(ORThumbnailRef thumbnail,
int32_t orientation)
{
GdkPixbuf *tmp = NULL;
const guchar * buf;
or_data_type format = or_thumbnail_format(thumbnail);
buf = (const guchar *)or_thumbnail_data(thumbnail);
switch (format)
{
case OR_DATA_TYPE_PIXMAP_8RGB:
{
uint32_t x, y;
size_t buf_size;
guchar * data;
buf_size = or_thumbnail_data_size(thumbnail);
data = (guchar*)malloc(buf_size);
memcpy(data, buf, buf_size);
or_thumbnail_dimensions(thumbnail, &x, &y);
tmp = gdk_pixbuf_new_from_data(data,
GDK_COLORSPACE_RGB,
FALSE, 8, x, y, x * 3,
pixbuf_free, NULL);
break;
}
case OR_DATA_TYPE_JPEG:
case OR_DATA_TYPE_TIFF:
case OR_DATA_TYPE_PNG:
{
GdkPixbufLoader *loader = NULL;
size_t count = or_thumbnail_data_size(thumbnail);
loader = gdk_pixbuf_loader_new();
if (loader != NULL) {
gdk_pixbuf_loader_write(loader, buf, count, NULL);
gdk_pixbuf_loader_close(loader, NULL);
tmp = gdk_pixbuf_loader_get_pixbuf(loader);
}
break;
}
default:
break;
}
return rotate_pixbuf(tmp, orientation);
}
GdkPixbuf *or_thumbnail_to_pixbuf(ORThumbnailRef thumbnail)
{
return _or_thumbnail_to_pixbuf(thumbnail, 0);
}
static GdkPixbuf *_or_gdkpixbuf_extract_thumbnail(const char *path,
uint32_t preferred_size,
gboolean rotate)
{
ORRawFileRef rf;
int32_t orientation = 0;
GdkPixbuf *pixbuf = NULL;
or_error err = OR_ERROR_NONE;
ORThumbnailRef thumbnail = NULL;
rf = or_rawfile_new(path, OR_RAWFILE_TYPE_UNKNOWN);
if(rf) {
if(rotate) {
orientation = or_rawfile_get_orientation(rf);
}
thumbnail = or_thumbnail_new();
err = or_rawfile_get_thumbnail(rf, preferred_size,
thumbnail);
if (err == OR_ERROR_NONE) {
pixbuf = _or_thumbnail_to_pixbuf(thumbnail, orientation);
}
else {
g_debug("or_get_extract_thumbnail() failed with %d.", err);
}
err = or_thumbnail_release(thumbnail);
if (err != OR_ERROR_NONE) {
g_warning("or_thumbnail_release() failed with %d", err);
}
or_rawfile_release(rf);
}
return pixbuf;
}
GdkPixbuf *or_gdkpixbuf_extract_thumbnail(const char *path, uint32_t preferred_size)
{
return _or_gdkpixbuf_extract_thumbnail(path, preferred_size, FALSE);
}
GdkPixbuf *or_gdkpixbuf_extract_rotated_thumbnail(const char *path, uint32_t preferred_size)
{
return _or_gdkpixbuf_extract_thumbnail(path, preferred_size, TRUE);
}
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