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From 9b3e1c91fd2eac69da6947ec9c7fbf10096ba237 Mon Sep 17 00:00:00 2001
From: Mukund Sivaraman <muks@banu.com>
Date: Wed, 20 Apr 2011 13:25:44 +0000
Subject: file-pdf-load: Don't use deprecated API (bug #646947)
Upstream-Status: Applied
---
diff --git a/plug-ins/common/file-pdf-load.c b/plug-ins/common/file-pdf-load.c
index c2d5512..6183403 100644
--- a/plug-ins/common/file-pdf.c
+++ b/plug-ins/common/file-pdf.c
@@ -4,6 +4,9 @@
*
* Copyright (C) 2005 Nathan Summers
*
+ * Some code borrowed from poppler.git/glib/poppler-page.cc
+ * Copyright (C) 2005, Red Hat, Inc.
+ *
* 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
@@ -582,6 +585,84 @@ layer_from_pixbuf (gint32 image,
return layer;
}
+static void
+copy_cairo_surface_to_pixbuf (cairo_surface_t *surface,
+ GdkPixbuf *pixbuf)
+{
+ int cairo_width, cairo_height, cairo_rowstride;
+ unsigned char *pixbuf_data, *dst, *cairo_data;
+ int pixbuf_rowstride, pixbuf_n_channels;
+ unsigned int *src;
+ int x, y;
+
+ cairo_width = cairo_image_surface_get_width (surface);
+ cairo_height = cairo_image_surface_get_height (surface);
+ cairo_rowstride = cairo_image_surface_get_stride (surface);
+ cairo_data = cairo_image_surface_get_data (surface);
+
+ pixbuf_data = gdk_pixbuf_get_pixels (pixbuf);
+ pixbuf_rowstride = gdk_pixbuf_get_rowstride (pixbuf);
+ pixbuf_n_channels = gdk_pixbuf_get_n_channels (pixbuf);
+
+ if (cairo_width > gdk_pixbuf_get_width (pixbuf))
+ cairo_width = gdk_pixbuf_get_width (pixbuf);
+ if (cairo_height > gdk_pixbuf_get_height (pixbuf))
+ cairo_height = gdk_pixbuf_get_height (pixbuf);
+
+ for (y = 0; y < cairo_height; y++)
+ {
+ src = (unsigned int *) (cairo_data + y * cairo_rowstride);
+ dst = pixbuf_data + y * pixbuf_rowstride;
+
+ for (x = 0; x < cairo_width; x++)
+ {
+ dst[0] = (*src >> 16) & 0xff;
+ dst[1] = (*src >> 8) & 0xff;
+ dst[2] = (*src >> 0) & 0xff;
+
+ if (pixbuf_n_channels == 4)
+ dst[3] = (*src >> 24) & 0xff;
+
+ dst += pixbuf_n_channels;
+ src++;
+ }
+ }
+}
+
+static GdkPixbuf *
+render_page_to_pixbuf (PopplerPage *page,
+ int width,
+ int height,
+ double scale)
+{
+ GdkPixbuf *pixbuf;
+ cairo_surface_t *surface;
+ cairo_t *cr;
+
+ pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, width, height);
+ surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
+ cr = cairo_create (surface);
+
+ cairo_save (cr);
+ cairo_translate (cr, 0.0, 0.0);
+
+ if (scale != 1.0)
+ cairo_scale (cr, scale, scale);
+
+ poppler_page_render (page, cr);
+ cairo_restore (cr);
+
+ cairo_set_operator (cr, CAIRO_OPERATOR_DEST_OVER);
+ cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
+ cairo_paint (cr);
+
+ cairo_destroy (cr);
+ copy_cairo_surface_to_pixbuf (surface, pixbuf);
+ cairo_surface_destroy (surface);
+
+ return pixbuf;
+}
+
static gint32
load_image (PopplerDocument *doc,
const gchar *filename,
@@ -613,7 +694,7 @@ load_image (PopplerDocument *doc,
gdouble page_width;
gdouble page_height;
- GdkPixbuf *buf;
+ GdkPixbuf *pixbuf;
gint width;
gint height;
@@ -643,15 +724,13 @@ load_image (PopplerDocument *doc,
gimp_image_set_resolution (image_ID, resolution, resolution);
}
- buf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, width, height);
-
- poppler_page_render_to_pixbuf (page, 0, 0, width, height, scale, 0, buf);
+ pixbuf = render_page_to_pixbuf (page, width, height, scale);
- layer_from_pixbuf (image_ID, page_label, i, buf,
+ layer_from_pixbuf (image_ID, page_label, i, pixbuf,
doc_progress, 1.0 / pages->n_pages);
g_free (page_label);
- g_object_unref (buf);
+ g_object_unref (pixbuf);
doc_progress = (double) (i + 1) / pages->n_pages;
gimp_progress_update (doc_progress);
@@ -729,11 +808,7 @@ get_thumbnail (PopplerDocument *doc,
width *= scale;
height *= scale;
- pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8,
- width, height);
-
- poppler_page_render_to_pixbuf (page,
- 0, 0, width, height, scale, 0, pixbuf);
+ pixbuf = render_page_to_pixbuf (page, width, height, scale);
}
g_object_unref (page);
--
cgit v0.9.0.2
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