X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;ds=sidebyside;f=backend%2Ftiff%2Ftiff-document.c;h=86170e270b7f290d728cf9ba237086d52977ca8f;hb=af65f4fafa42e09dda2c3ca83171c73a619fa268;hp=c6f4db2b76bde686c78d463af0bfb55b35de7047;hpb=a953c6011f2fba7441758469118a886a33458e50;p=evince.git

diff --git a/backend/tiff/tiff-document.c b/backend/tiff/tiff-document.c
index c6f4db2b..86170e27 100644
--- a/backend/tiff/tiff-document.c
+++ b/backend/tiff/tiff-document.c
@@ -20,8 +20,12 @@
 /* FIXME: Should probably buffer calls to libtiff with TIFFSetWarningHandler
  */
 
+#include "config.h"
+
+#include <config.h>
 #include <stdio.h>
 #include <glib.h>
+#include <glib/gi18n.h>
 
 #include "tiffio.h"
 #include "tiff2ps.h"
@@ -29,6 +33,7 @@
 #include "ev-document-misc.h"
 #include "ev-document-thumbnails.h"
 #include "ev-file-exporter.h"
+#include "ev-file-helpers.h"
 
 struct _TiffDocumentClass
 {
@@ -52,9 +57,8 @@ static void tiff_document_document_iface_init (EvDocumentIface *iface);
 static void tiff_document_document_thumbnails_iface_init (EvDocumentThumbnailsIface *iface);
 static void tiff_document_document_file_exporter_iface_init (EvFileExporterIface *iface);
 
-G_DEFINE_TYPE_WITH_CODE (TiffDocument, tiff_document, G_TYPE_OBJECT,
-                         { G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT,
-						  tiff_document_document_iface_init);
+EV_BACKEND_REGISTER_WITH_CODE (TiffDocument, tiff_document,
+			 {
 			   G_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS,
 						  tiff_document_document_thumbnails_iface_init);
 			   G_IMPLEMENT_INTERFACE (EV_TYPE_FILE_EXPORTER,
@@ -210,9 +214,7 @@ tiff_document_render (EvDocument      *document,
 	float x_res, y_res;
 	gint rowstride, bytes;
 	guchar *pixels = NULL;
-	GdkPixbuf *pixbuf;
-	GdkPixbuf *scaled_pixbuf;
-	GdkPixbuf *rotated_pixbuf;
+	guchar *p;
 	cairo_surface_t *surface;
 	cairo_surface_t *rotated_surface;
 	static const cairo_user_data_key_t key;
@@ -244,11 +246,15 @@ tiff_document_render (EvDocument      *document,
 	if (width <= 0 || height <= 0)
 		return NULL;                
 
+#ifdef HAVE_CAIRO_FORMAT_STRIDE_FOR_WIDTH
+	rowstride = cairo_format_stride_for_width (CAIRO_FORMAT_RGB24, width);
+#else
 	rowstride = width * 4;
 	if (rowstride / 4 != width)
 		/* overflow */
 		return NULL;                
-        
+#endif
+	
 	bytes = height * rowstride;
 	if (bytes / rowstride != height)
 		/* overflow */
@@ -271,6 +277,23 @@ tiff_document_render (EvDocument      *document,
 				   ORIENTATION_TOPLEFT, 1);
 	pop_handlers ();
 
+	/* Convert the format returned by libtiff to
+	* what cairo expects
+	*/
+	p = pixels;
+	while (p < pixels + bytes) {
+		uint32 pixel = *(uint32 *)p;
+		int r = TIFFGetR(pixel);
+		int g = TIFFGetG(pixel);
+		int b = TIFFGetB(pixel);
+		int a = TIFFGetA(pixel);
+		
+		*p++ = b;
+		*p++ = g;
+		*p++ = r;
+		*p++ = a;
+	}
+
 	rotated_surface = ev_document_misc_surface_rotate_and_scale (surface,
 								     (width * rc->scale) + 0.5,
 								     (height * rc->scale * (x_res / y_res)) + 0.5,
@@ -373,12 +396,6 @@ tiff_document_class_init (TiffDocumentClass *klass)
 	gobject_class->finalize = tiff_document_finalize;
 }
 
-static gboolean
-tiff_document_can_get_text (EvDocument *document)
-{
-	return FALSE;
-}
-
 static EvDocumentInfo *
 tiff_document_get_info (EvDocument *document)
 {
@@ -395,7 +412,6 @@ tiff_document_document_iface_init (EvDocumentIface *iface)
 {
 	iface->load = tiff_document_load;
 	iface->save = tiff_document_save;
-	iface->can_get_text = tiff_document_can_get_text;
 	iface->get_n_pages = tiff_document_get_n_pages;
 	iface->get_page_size = tiff_document_get_page_size;
 	iface->render = tiff_document_render;