+++ /dev/null
-/*
- * Copyright (C) 20019 - The Geeqie Team
- *
- * Author: Colin Clark
- *
- * 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 02110-1301 USA.
- */
-
-#include "main.h"
-
-#include "image-load.h"
-#include "image_load_heif.h"
-
-#ifdef HAVE_HEIF
-#include <libheif/heif.h>
-
-typedef struct _ImageLoaderHEIF ImageLoaderHEIF;
-struct _ImageLoaderHEIF {
- ImageLoaderBackendCbAreaUpdated area_updated_cb;
- ImageLoaderBackendCbSize size_cb;
- ImageLoaderBackendCbAreaPrepared area_prepared_cb;
- gpointer data;
- GdkPixbuf *pixbuf;
- guint requested_width;
- guint requested_height;
- gboolean abort;
- gint page_num;
- gint page_total;
-};
-
-static void free_buffer(guchar *UNUSED(pixels), gpointer data)
-{
- heif_image_release((const struct heif_image*)data);
-}
-
-static gboolean image_loader_heif_load(gpointer loader, const guchar *buf, gsize count, GError **UNUSED(error))
-{
- ImageLoaderHEIF *ld = (ImageLoaderHEIF *) loader;
- struct heif_context* ctx;
- struct heif_image* img;
- struct heif_error error_code;
- struct heif_image_handle* handle;
- guint8* data;
- gint width, height;
- gint stride;
- gboolean alpha;
- gint page_total;
-
- ctx = heif_context_alloc();
-
- error_code = heif_context_read_from_memory_without_copy(ctx, buf, count, NULL);
- if (error_code.code)
- {
- log_printf("warning: heif reader error: %s\n", error_code.message);
- heif_context_free(ctx);
- return FALSE;
- }
- else
- {
- page_total = heif_context_get_number_of_top_level_images(ctx);
- ld->page_total = page_total;
-
- guint32 IDs[page_total * sizeof(guint32)];
-
- /* get list of all (top level) image IDs */
- heif_context_get_list_of_top_level_image_IDs(ctx, IDs, page_total);
-
- error_code = heif_context_get_image_handle(ctx, IDs[ld->page_num], &handle);
- if (error_code.code)
- {
- log_printf("warning: heif reader error: %s\n", error_code.message);
- heif_context_free(ctx);
- return FALSE;
- }
-
- // decode the image and convert colorspace to RGB, saved as 24bit interleaved
- error_code = heif_decode_image(handle, &img, heif_colorspace_RGB, heif_chroma_interleaved_24bit, NULL);
- if (error_code.code)
- {
- log_printf("warning: heif reader error: %s\n", error_code.message);
- heif_context_free(ctx);
- return FALSE;
- }
-
- data = heif_image_get_plane(img, heif_channel_interleaved, &stride);
-
- height = heif_image_get_height(img,heif_channel_interleaved);
- width = heif_image_get_width(img,heif_channel_interleaved);
- alpha = heif_image_handle_has_alpha_channel(handle);
- heif_image_handle_release(handle);
-
- ld->pixbuf = gdk_pixbuf_new_from_data(data, GDK_COLORSPACE_RGB, alpha, 8, width, height, stride, free_buffer, img);
-
- ld->area_updated_cb(loader, 0, 0, width, height, ld->data);
- }
-
- heif_context_free(ctx);
-
- return TRUE;
-}
-
-static gpointer image_loader_heif_new(ImageLoaderBackendCbAreaUpdated area_updated_cb, ImageLoaderBackendCbSize size_cb, ImageLoaderBackendCbAreaPrepared area_prepared_cb, gpointer data)
-{
- ImageLoaderHEIF *loader = g_new0(ImageLoaderHEIF, 1);
- loader->area_updated_cb = area_updated_cb;
- loader->size_cb = size_cb;
- loader->area_prepared_cb = area_prepared_cb;
- loader->data = data;
- loader->page_num = 0;
- return (gpointer) loader;
-}
-
-static void image_loader_heif_set_size(gpointer loader, int width, int height)
-{
- ImageLoaderHEIF *ld = (ImageLoaderHEIF *) loader;
- ld->requested_width = width;
- ld->requested_height = height;
-}
-
-static GdkPixbuf* image_loader_heif_get_pixbuf(gpointer loader)
-{
- ImageLoaderHEIF *ld = (ImageLoaderHEIF *) loader;
- return ld->pixbuf;
-}
-
-static gchar* image_loader_heif_get_format_name(gpointer UNUSED(loader))
-{
- return g_strdup("heif");
-}
-
-static gchar** image_loader_heif_get_format_mime_types(gpointer UNUSED(loader))
-{
- static gchar *mime[] = {"image/heic", NULL};
- return g_strdupv(mime);
-}
-
-static void image_loader_heif_set_page_num(gpointer loader, gint page_num)
-{
- ImageLoaderHEIF *ld = (ImageLoaderHEIF *) loader;
-
- ld->page_num = page_num;
-}
-
-static gint image_loader_heif_get_page_total(gpointer loader)
-{
- ImageLoaderHEIF *ld = (ImageLoaderHEIF *) loader;
-
- return ld->page_total;
-}
-
-static gboolean image_loader_heif_close(gpointer UNUSED(loader), GError **UNUSED(error))
-{
- return TRUE;
-}
-
-static void image_loader_heif_abort(gpointer loader)
-{
- ImageLoaderHEIF *ld = (ImageLoaderHEIF *) loader;
- ld->abort = TRUE;
-}
-
-static void image_loader_heif_free(gpointer loader)
-{
- ImageLoaderHEIF *ld = (ImageLoaderHEIF *) loader;
- if (ld->pixbuf) g_object_unref(ld->pixbuf);
- g_free(ld);
-}
-
-void image_loader_backend_set_heif(ImageLoaderBackend *funcs)
-{
- funcs->loader_new = image_loader_heif_new;
- funcs->set_size = image_loader_heif_set_size;
- funcs->load = image_loader_heif_load;
- funcs->write = NULL;
- funcs->get_pixbuf = image_loader_heif_get_pixbuf;
- funcs->close = image_loader_heif_close;
- funcs->abort = image_loader_heif_abort;
- funcs->free = image_loader_heif_free;
- funcs->get_format_name = image_loader_heif_get_format_name;
- funcs->get_format_mime_types = image_loader_heif_get_format_mime_types;
- funcs->set_page_num = image_loader_heif_set_page_num;
- funcs->get_page_total = image_loader_heif_get_page_total;
-}
-
-#endif
-/* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */
projects / geeqie.git / blobdiff