namespace
{
-struct ImageLoaderHEIF {
- ImageLoaderBackendCbAreaUpdated area_updated_cb;
- ImageLoaderBackendCbSize size_cb;
- ImageLoaderBackendCbAreaPrepared area_prepared_cb;
+struct ImageLoaderHEIF : public ImageLoaderBackend
+{
+public:
+ ~ImageLoaderHEIF() override;
+
+ void init(AreaUpdatedCb area_updated_cb, SizePreparedCb size_prepared_cb, AreaPreparedCb area_prepared_cb, gpointer data) override;
+ gboolean write(const guchar *buf, gsize &chunk_size, gsize count, GError **error) override;
+ GdkPixbuf *get_pixbuf() override;
+ gchar *get_format_name() override;
+ gchar **get_format_mime_types() override;
+ void set_page_num(gint page_num) override;
+ gint get_page_total() override;
+
+private:
+ AreaUpdatedCb area_updated_cb;
gpointer data;
+
GdkPixbuf *pixbuf;
- guint requested_width;
- guint requested_height;
- gboolean abort;
gint page_num;
gint page_total;
};
heif_image_release(static_cast<const struct heif_image*>(data));
}
-gboolean image_loader_heif_write(gpointer loader, const guchar *buf, gsize &chunk_size, gsize count, GError **)
+gboolean ImageLoaderHEIF::write(const guchar *buf, gsize &chunk_size, gsize count, GError **)
{
- auto ld = static_cast<ImageLoaderHEIF *>(loader);
struct heif_context* ctx;
struct heif_image* img;
struct heif_error error_code;
struct heif_image_handle* handle;
- guint8* data;
+ guint8* pixels;
gint width;
gint height;
gint stride;
gboolean alpha;
- gint page_total;
ctx = heif_context_alloc();
}
page_total = heif_context_get_number_of_top_level_images(ctx);
- ld->page_total = page_total;
std::vector<heif_item_id> IDs(page_total);
/* get list of all (top level) image IDs */
heif_context_get_list_of_top_level_image_IDs(ctx, IDs.data(), page_total);
- error_code = heif_context_get_image_handle(ctx, IDs[ld->page_num], &handle);
+ error_code = heif_context_get_image_handle(ctx, IDs[page_num], &handle);
if (error_code.code)
{
- log_printf("warning: heif reader error: %s\n", error_code.message);
+ log_printf("warning: heif reader error: %s\n", error_code.message);
heif_context_free(ctx);
return FALSE;
}
return FALSE;
}
- data = heif_image_get_plane(img, heif_channel_interleaved, &stride);
+ pixels = 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);
+ pixbuf = gdk_pixbuf_new_from_data(pixels, GDK_COLORSPACE_RGB, alpha, 8, width, height, stride, free_buffer, img);
- ld->area_updated_cb(loader, 0, 0, width, height, ld->data);
+ area_updated_cb(nullptr, 0, 0, width, height, data);
heif_context_free(ctx);
return TRUE;
}
-gpointer image_loader_heif_new(ImageLoaderBackendCbAreaUpdated area_updated_cb, ImageLoaderBackendCbSize size_cb, ImageLoaderBackendCbAreaPrepared area_prepared_cb, gpointer data)
+void ImageLoaderHEIF::init(AreaUpdatedCb area_updated_cb, SizePreparedCb, AreaPreparedCb, gpointer data)
{
- auto 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 loader;
+ this->area_updated_cb = area_updated_cb;
+ this->data = data;
+ page_num = 0;
}
-void image_loader_heif_set_size(gpointer loader, int width, int height)
+GdkPixbuf *ImageLoaderHEIF::get_pixbuf()
{
- auto ld = static_cast<ImageLoaderHEIF *>(loader);
- ld->requested_width = width;
- ld->requested_height = height;
+ return pixbuf;
}
-GdkPixbuf* image_loader_heif_get_pixbuf(gpointer loader)
-{
- auto ld = static_cast<ImageLoaderHEIF *>(loader);
- return ld->pixbuf;
-}
-
-gchar* image_loader_heif_get_format_name(gpointer)
+gchar *ImageLoaderHEIF::get_format_name()
{
return g_strdup("heif");
}
-gchar** image_loader_heif_get_format_mime_types(gpointer)
+gchar **ImageLoaderHEIF::get_format_mime_types()
{
static const gchar *mime[] = {"image/heic", nullptr};
return g_strdupv(const_cast<gchar **>(mime));
}
-void image_loader_heif_set_page_num(gpointer loader, gint page_num)
-{
- auto ld = static_cast<ImageLoaderHEIF *>(loader);
-
- ld->page_num = page_num;
-}
-
-gint image_loader_heif_get_page_total(gpointer loader)
-{
- auto ld = static_cast<ImageLoaderHEIF *>(loader);
-
- return ld->page_total;
-}
-
-gboolean image_loader_heif_close(gpointer, GError **)
+void ImageLoaderHEIF::set_page_num(gint page_num)
{
- return TRUE;
+ this->page_num = page_num;
}
-void image_loader_heif_abort(gpointer loader)
+gint ImageLoaderHEIF::get_page_total()
{
- auto ld = static_cast<ImageLoaderHEIF *>(loader);
- ld->abort = TRUE;
+ return page_total;
}
-void image_loader_heif_free(gpointer loader)
+ImageLoaderHEIF::~ImageLoaderHEIF()
{
- auto ld = static_cast<ImageLoaderHEIF *>(loader);
- if (ld->pixbuf) g_object_unref(ld->pixbuf);
- g_free(ld);
+ if (pixbuf) g_object_unref(pixbuf);
}
} // namespace
-void image_loader_backend_set_heif(ImageLoaderBackend *funcs)
+std::unique_ptr<ImageLoaderBackend> get_image_loader_backend_heif()
{
- funcs->loader_new = image_loader_heif_new;
- funcs->set_size = image_loader_heif_set_size;
- funcs->write = image_loader_heif_write;
- 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;
+ return std::make_unique<ImageLoaderHEIF>();
}
#endif
projects / geeqie.git / blobdiff