Fix #277: DjVu image support for geeqie

[geeqie.git] / src / image-load.c

diff --git a/src/image-load.c b/src/image-load.c
index d407a81..c9ddb5f 100644 (file)
--- a/src/image-load.c
+++ b/src/image-load.c
@@ -25,6 +25,7 @@
 #include "image_load_jpeg.h"
 #include "image_load_tiff.h"
 #include "image_load_dds.h"
+#include "image_load_djvu.h"
 #include "image_load_pdf.h"
 #include "image_load_heif.h"
 #include "image_load_ffmpegthumbnailer.h"
@@ -648,6 +649,15 @@ static void image_loader_setup_loader(ImageLoader *il)
                }
        else
 #endif
+#ifdef HAVE_DJVU
+       if (il->bytes_total >= 16 &&
+               (memcmp(il->mapped_file + 12, "DJV", 3) == 0))
+               {
+               DEBUG_1("Using custom djvu loader");
+               image_loader_backend_set_djvu(&il->backend);
+               }
+       else
+#endif
 #ifdef HAVE_JPEG
        if (il->bytes_total >= 2 && il->mapped_file[0] == 0xff && il->mapped_file[1] == 0xd8)
                {
@@ -691,6 +701,13 @@ static void image_loader_setup_loader(ImageLoader *il)
                }
 #endif
 
+#ifdef HAVE_DJVU
+       if (g_strcmp0(il->fd->extension, ".djvu") == 0)
+               {
+               il->backend.set_page_num(il->loader, il->fd->page_num);
+               }
+#endif
+
        g_mutex_unlock(il->data_mutex);
 }
 
@@ -781,6 +798,13 @@ static gboolean image_loader_begin(ImageLoader *il)
                file_data_set_page_total(il->fd, i);
                }
 #endif
+#ifdef HAVE_DJVU
+       if (g_strcmp0(il->fd->extension, ".djvu") == 0)
+               {
+               gint i = il->backend.get_page_total(il->loader);
+               file_data_set_page_total(il->fd, i);
+               }
+#endif
 
        il->bytes_read += b;