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file-pdf-load: Don't use deprecated API (bug #646947)

This commit is contained in:
Mukund Sivaraman 2011-04-20 18:55:44 +05:30
parent ae2ab1ff3b
commit 9b3e1c91fd
1 changed files with 86 additions and 11 deletions
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97
plug-ins/common/file-pdf-load.c
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@ -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 3 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);
pixbuf = render_page_to_pixbuf (page, width, height, scale);
poppler_page_render_to_pixbuf (page, 0, 0, width, height, scale, 0, buf);
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);