[evince] djvu: Use initial rotation to render page

[Jose Aliste <jaliste src gnome org>]

commit b766db567b51585cb86a8d0d289c0b8c4a3c4cea
Author: Josà Aliste <jaliste src gnome org>
Date:   Sun Feb 3 19:15:00 2013 +0100

    djvu: Use initial rotation to render page
    
    See https://bugzilla.gnome.org/show_bug.cgi?id=667266

 backend/djvu/djvu-document.c |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)
---
diff --git a/backend/djvu/djvu-document.c b/backend/djvu/djvu-document.c
index 7bb655c..9c1b135 100644
--- a/backend/djvu/djvu-document.c
+++ b/backend/djvu/djvu-document.c
@@ -331,32 +331,34 @@ djvu_document_render (EvDocument      *document,
 		djvu_handle_events(djvu_document, TRUE, NULL);
 
 	document_get_page_size (djvu_document, rc->page->index, &page_width, &page_height, NULL);
+	rotation = ddjvu_page_get_initial_rotation (d_page);
 
 	page_width = page_width * rc->scale + 0.5;
 	page_height = page_height * rc->scale + 0.5;
 	
 	switch (rc->rotation) {
 	        case 90:
-			rotation = DDJVU_ROTATE_90;
+			rotation += DDJVU_ROTATE_90;
 			tmp = page_height;
 			page_height = page_width;
 			page_width = tmp;
 			
 			break;
 	        case 180:
-			rotation = DDJVU_ROTATE_180;
+			rotation += DDJVU_ROTATE_180;
 			
 			break;
 	        case 270:
-			rotation = DDJVU_ROTATE_270;
+			rotation += DDJVU_ROTATE_270;
 			tmp = page_height;
 			page_height = page_width;
 			page_width = tmp;
 			
 			break;
 	        default:
-			rotation = DDJVU_ROTATE_0;
+			rotation += DDJVU_ROTATE_0;
 	}
+	rotation = rotation % 4;
 
 	surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24,
 					      page_width, page_height);