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8005eea835
because it confuses gtk-doc and breaks some links. Also change the "Index of new symbols in GIMP 2.x" sections to be what seems to be the modern standard (looked at the GLib and GTK+ docs), and update some other stuff.
116 lines
3.4 KiB
C
116 lines
3.4 KiB
C
/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
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*
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* gimppixbuf.c
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* Copyright (C) 2012 Michael Natterer <mitch@gimp.org>
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*
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* This library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include "gimpcolortypes.h"
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#include "gimppixbuf.h"
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/**
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* SECTION: gimppixbuf
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* @title: GimpPixbuf
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* @short_description: Definitions and Functions relating to GdkPixbuf.
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*
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* Definitions and Functions relating to GdkPixbuf.
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**/
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/**
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* gimp_pixbuf_get_format:
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* @pixbuf: a #GdkPixbuf
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*
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* Returns the Babl format that corresponds to the @pixbuf's pixel format.
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*
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* Return value: the @pixbuf's pixel format
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*
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* Since: 2.10
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**/
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const Babl *
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gimp_pixbuf_get_format (GdkPixbuf *pixbuf)
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{
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g_return_val_if_fail (GDK_IS_PIXBUF (pixbuf), NULL);
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switch (gdk_pixbuf_get_n_channels (pixbuf))
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{
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case 3: return babl_format ("R'G'B' u8");
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case 4: return babl_format ("R'G'B'A u8");
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}
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g_return_val_if_reached (NULL);
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}
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/**
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* gimp_pixbuf_create_buffer:
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* @pixbuf: a #GdkPixbuf
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*
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* Returns a #GeglBuffer that's either backed by the @pixbuf's pixels,
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* or a copy of them. This function tries to not copy the @pixbuf's
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* pixels. If the pixbuf's rowstride is a multiple of its bpp, a
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* simple reference to the @pixbuf's pixels is made and @pixbuf will
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* be kept around for as long as the buffer exists; otherwise the
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* pixels are copied.
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*
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* Return value: a new #GeglBuffer.
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*
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* Since: 2.10
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**/
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GeglBuffer *
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gimp_pixbuf_create_buffer (GdkPixbuf *pixbuf)
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{
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gint width;
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gint height;
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gint rowstride;
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gint bpp;
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g_return_val_if_fail (GDK_IS_PIXBUF (pixbuf), NULL);
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width = gdk_pixbuf_get_width (pixbuf);
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height = gdk_pixbuf_get_height (pixbuf);
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rowstride = gdk_pixbuf_get_rowstride (pixbuf);
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bpp = gdk_pixbuf_get_n_channels (pixbuf);
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if ((rowstride % bpp) == 0)
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{
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return gegl_buffer_linear_new_from_data (gdk_pixbuf_get_pixels (pixbuf),
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gimp_pixbuf_get_format (pixbuf),
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GEGL_RECTANGLE (0, 0,
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width, height),
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rowstride,
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(GDestroyNotify) g_object_unref,
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g_object_ref (pixbuf));
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}
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else
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{
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GeglBuffer *buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
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width, height),
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gimp_pixbuf_get_format (pixbuf));
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gegl_buffer_set (buffer, NULL, 0, NULL,
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gdk_pixbuf_get_pixels (pixbuf),
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gdk_pixbuf_get_rowstride (pixbuf));
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return buffer;
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}
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}
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