--- a/pidgin/pidgingdkpixbuf.c Fri Apr 01 01:09:23 2022 -0500
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,343 +0,0 @@
-/* pidgin
- *
- * Pidgin is the legal property of its developers, whose names are too numerous
- * to list here. Please refer to the COPYRIGHT file distributed with this
- * source distribution.
- *
- * 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 2 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, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
- */
-
-#include "pidgin/pidgingdkpixbuf.h"
-
-GdkPixbuf *
-pidgin_gdk_pixbuf_new_from_image(PurpleImage *image, GError **error) {
- GdkPixbufLoader *loader = NULL;
- GdkPixbuf *pixbuf = NULL;
- GBytes *data = NULL;
- gboolean success = FALSE;
-
- g_return_val_if_fail(PURPLE_IS_IMAGE(image), NULL);
-
- data = purple_image_get_contents(image);
- success = gdk_pixbuf_loader_write_bytes(loader, data, error);
- g_bytes_unref(data);
-
- if(success) {
- if(error != NULL && *error != NULL) {
- g_object_unref(G_OBJECT(loader));
-
- return NULL;
- }
-
- if(gdk_pixbuf_loader_close(loader, error)) {
- pixbuf = gdk_pixbuf_loader_get_pixbuf(loader);
- if(pixbuf != NULL) {
- pixbuf = g_object_ref(pixbuf);
- }
- }
-
- g_object_unref(G_OBJECT(loader));
- }
-
- return pixbuf;
-}
-
-void pidgin_gdk_pixbuf_make_round(GdkPixbuf *pixbuf) {
- gint width, height, rowstride;
- guchar *pixels;
-
- if (!gdk_pixbuf_get_has_alpha(pixbuf)) {
- return;
- }
-
- width = gdk_pixbuf_get_width(pixbuf);
- height = gdk_pixbuf_get_height(pixbuf);
- rowstride = gdk_pixbuf_get_rowstride(pixbuf);
- pixels = gdk_pixbuf_get_pixels(pixbuf);
-
- if (width < 6 || height < 6) {
- return;
- }
-
- /* The following code will convert the alpha of the pixel data in all
- * corners to look something like the following diagram.
- *
- * 00 80 c0 FF FF c0 80 00
- * 80 FF FF FF FF FF FF 80
- * c0 FF FF FF FF FF FF c0
- * FF FF FF FF FF FF FF FF
- * FF FF FF FF FF FF FF FF
- * c0 FF FF FF FF FF FF c0
- * 80 FF FF FF FF FF FF 80
- * 00 80 c0 FF FF c0 80 00
- */
-
- /* Top left */
- pixels[3] = 0;
- pixels[7] = 0x80;
- pixels[11] = 0xC0;
- pixels[rowstride + 3] = 0x80;
- pixels[rowstride * 2 + 3] = 0xC0;
-
- /* Top right */
- pixels[width * 4 - 1] = 0;
- pixels[width * 4 - 5] = 0x80;
- pixels[width * 4 - 9] = 0xC0;
- pixels[rowstride + (width * 4) - 1] = 0x80;
- pixels[(2 * rowstride) + (width * 4) - 1] = 0xC0;
-
- /* Bottom left */
- pixels[(height - 1) * rowstride + 3] = 0;
- pixels[(height - 1) * rowstride + 7] = 0x80;
- pixels[(height - 1) * rowstride + 11] = 0xC0;
- pixels[(height - 2) * rowstride + 3] = 0x80;
- pixels[(height - 3) * rowstride + 3] = 0xC0;
-
- /* Bottom right */
- pixels[height * rowstride - 1] = 0;
- pixels[(height - 1) * rowstride - 1] = 0x80;
- pixels[(height - 2) * rowstride - 1] = 0xC0;
- pixels[height * rowstride - 5] = 0x80;
- pixels[height * rowstride - 9] = 0xC0;
-}
-
-gboolean
-pidgin_gdk_pixbuf_is_opaque(GdkPixbuf *pixbuf) {
- gint height, rowstride, i;
- guchar *pixels;
- guchar *row;
-
- if (!gdk_pixbuf_get_has_alpha(pixbuf)) {
- return TRUE;
- }
-
- height = gdk_pixbuf_get_height (pixbuf);
- rowstride = gdk_pixbuf_get_rowstride (pixbuf);
- pixels = gdk_pixbuf_get_pixels (pixbuf);
-
- /* check the top row */
- row = pixels;
- for (i = 3; i < rowstride; i+=4) {
- if (row[i] < 0xfe) {
- return FALSE;
- }
- }
-
- /* check the left and right sides */
- for (i = 1; i < height - 1; i++) {
- row = pixels + (i * rowstride);
- if (row[3] < 0xfe || row[rowstride - 1] < 0xfe) {
- return FALSE;
- }
- }
-
- /* check the bottom */
- row = pixels + ((height - 1) * rowstride);
- for (i = 3; i < rowstride; i += 4) {
- if (row[i] < 0xfe) {
- return FALSE;
- }
- }
-
- return TRUE;
-}
-
-static GObject *pidgin_pixbuf_from_data_helper(const guchar *buf, gsize count, gboolean animated)
-{
- GObject *pixbuf;
- GdkPixbufLoader *loader;
- GError *error = NULL;
-
- loader = gdk_pixbuf_loader_new();
-
- if (!gdk_pixbuf_loader_write(loader, buf, count, &error) || error) {
- purple_debug_warning("gtkutils", "gdk_pixbuf_loader_write() "
- "failed with size=%" G_GSIZE_FORMAT ": %s\n", count,
- error ? error->message : "(no error message)");
- if (error)
- g_error_free(error);
- g_object_unref(G_OBJECT(loader));
- return NULL;
- }
-
- if (!gdk_pixbuf_loader_close(loader, &error) || error) {
- purple_debug_warning("gtkutils", "gdk_pixbuf_loader_close() "
- "failed for image of size %" G_GSIZE_FORMAT ": %s\n", count,
- error ? error->message : "(no error message)");
- if (error)
- g_error_free(error);
- g_object_unref(G_OBJECT(loader));
- return NULL;
- }
-
- if (animated)
- pixbuf = G_OBJECT(gdk_pixbuf_loader_get_animation(loader));
- else
- pixbuf = G_OBJECT(gdk_pixbuf_loader_get_pixbuf(loader));
- if (!pixbuf) {
- purple_debug_warning("gtkutils", "%s() returned NULL for image "
- "of size %" G_GSIZE_FORMAT "\n",
- animated ? "gdk_pixbuf_loader_get_animation"
- : "gdk_pixbuf_loader_get_pixbuf", count);
- g_object_unref(G_OBJECT(loader));
- return NULL;
- }
-
- g_object_ref(pixbuf);
- g_object_unref(G_OBJECT(loader));
-
- return pixbuf;
-}
-
-GdkPixbuf *pidgin_pixbuf_from_data(const guchar *buf, gsize count)
-{
- return GDK_PIXBUF(pidgin_pixbuf_from_data_helper(buf, count, FALSE));
-}
-
-GdkPixbufAnimation *pidgin_pixbuf_anim_from_data(const guchar *buf, gsize count)
-{
- return GDK_PIXBUF_ANIMATION(pidgin_pixbuf_from_data_helper(buf, count, TRUE));
-}
-
-GdkPixbuf *
-pidgin_pixbuf_from_image(PurpleImage *image)
-{
- return pidgin_pixbuf_from_data(purple_image_get_data(image),
- purple_image_get_data_size(image));
-}
-
-GdkPixbuf *pidgin_pixbuf_new_from_file(const gchar *filename)
-{
- GdkPixbuf *pixbuf;
- GError *error = NULL;
-
- g_return_val_if_fail(filename != NULL, NULL);
- g_return_val_if_fail(filename[0] != '\0', NULL);
-
- pixbuf = gdk_pixbuf_new_from_file(filename, &error);
- if (!pixbuf || error) {
- purple_debug_warning("gtkutils", "gdk_pixbuf_new_from_file() "
- "returned %s for file %s: %s\n",
- pixbuf ? "something" : "nothing",
- filename,
- error ? error->message : "(no error message)");
- if (error)
- g_error_free(error);
- if (pixbuf)
- g_object_unref(G_OBJECT(pixbuf));
- return NULL;
- }
-
- return pixbuf;
-}
-
-GdkPixbuf *pidgin_pixbuf_new_from_file_at_size(const char *filename, int width, int height)
-{
- GdkPixbuf *pixbuf;
- GError *error = NULL;
-
- g_return_val_if_fail(filename != NULL, NULL);
- g_return_val_if_fail(filename[0] != '\0', NULL);
-
- pixbuf = gdk_pixbuf_new_from_file_at_size(filename,
- width, height, &error);
- if (!pixbuf || error) {
- purple_debug_warning("gtkutils", "gdk_pixbuf_new_from_file_at_size() "
- "returned %s for file %s: %s\n",
- pixbuf ? "something" : "nothing",
- filename,
- error ? error->message : "(no error message)");
- if (error)
- g_error_free(error);
- if (pixbuf)
- g_object_unref(G_OBJECT(pixbuf));
- return NULL;
- }
-
- return pixbuf;
-}
-
-GdkPixbuf *pidgin_pixbuf_new_from_file_at_scale(const char *filename, int width, int height, gboolean preserve_aspect_ratio)
-{
- GdkPixbuf *pixbuf;
- GError *error = NULL;
-
- g_return_val_if_fail(filename != NULL, NULL);
- g_return_val_if_fail(filename[0] != '\0', NULL);
-
- pixbuf = gdk_pixbuf_new_from_file_at_scale(filename,
- width, height, preserve_aspect_ratio, &error);
- if (!pixbuf || error) {
- purple_debug_warning("gtkutils", "gdk_pixbuf_new_from_file_at_scale() "
- "returned %s for file %s: %s\n",
- pixbuf ? "something" : "nothing",
- filename,
- error ? error->message : "(no error message)");
- if (error)
- g_error_free(error);
- if (pixbuf)
- g_object_unref(G_OBJECT(pixbuf));
- return NULL;
- }
-
- return pixbuf;
-}
-
-GdkPixbuf *
-pidgin_pixbuf_scale_down(GdkPixbuf *src, guint max_width, guint max_height,
- GdkInterpType interp_type, gboolean preserve_ratio)
-{
- guint cur_w, cur_h;
- GdkPixbuf *dst;
-
- g_return_val_if_fail(src != NULL, NULL);
-
- if (max_width == 0 || max_height == 0) {
- g_object_unref(src);
- g_return_val_if_reached(NULL);
- }
-
- cur_w = gdk_pixbuf_get_width(src);
- cur_h = gdk_pixbuf_get_height(src);
-
- if (cur_w <= max_width && cur_h <= max_height)
- return src;
-
- /* cur_ratio = cur_w / cur_h
- * max_ratio = max_w / max_h
- */
-
- if (!preserve_ratio) {
- cur_w = MIN(cur_w, max_width);
- cur_h = MIN(cur_h, max_height);
- } else if ((guint64)cur_w * max_height > (guint64)max_width * cur_h) {
- /* cur_w / cur_h > max_width / max_height */
- cur_h = (guint64)max_width * cur_h / cur_w;
- cur_w = max_width;
- } else {
- cur_w = (guint64)max_height * cur_w / cur_h;
- cur_h = max_height;
- }
-
- if (cur_w <= 0)
- cur_w = 1;
- if (cur_h <= 0)
- cur_h = 1;
-
- dst = gdk_pixbuf_scale_simple(src, cur_w, cur_h, interp_type);
- g_object_unref(src);
-
- return dst;
-}