gdk-pixbuf-xlibrgb.h

/*
 *
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.1 (the "MPL"); you may not use this file except in
 * compliance with the MPL.  You may obtain a copy of the MPL at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the MPL is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the MPL
 * for the specific language governing rights and limitations under the
 * MPL.
 *
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU Library General Public License (the "LGPL"), in
 * which case the provisions of the LGPL are applicable instead of
 * those above.  If you wish to allow use of your version of this file
 * only under the terms of the LGPL and not to allow others to use
 * your version of this file under the MPL, indicate your decision by
 * deleting the provisions above and replace them with the notice and
 * other provisions required by the LGPL.  If you do not delete the
 * provisions above, a recipient may use your version of this file
 * under either the MPL or the LGPL.
 */
 
/*
 * This code is derived from GdkRgb.
 * For more information on GdkRgb, see http://www.levien.com/gdkrgb/
 * Raph Levien <raph@acm.org>
 */
 
/* Ported by Christopher Blizzard to Xlib.  With permission from the
 * original authors of this file, the contents of this file are also
 * redistributable under the terms of the Mozilla Public license.  For
 * information about the Mozilla Public License, please see the
 * license information at http://www.mozilla.org/MPL/
 */
 
/* This code is copyright the following authors:
 * Raph Levien          <raph@acm.org>
 * Manish Singh         <manish@gtk.org>
 * Tim Janik            <timj@gtk.org>
 * Peter Mattis         <petm@xcf.berkeley.edu>
 * Spencer Kimball      <spencer@xcf.berkeley.edu>
 * Josh MacDonald       <jmacd@xcf.berkeley.edu>
 * Christopher Blizzard <blizzard@redhat.com>
 * Owen Taylor          <otaylor@redhat.com>
 * Shawn T. Amundson    <amundson@gtk.org>
*/
 
 
#ifndef __XLIB_RGB_H__
#define __XLIB_RGB_H__
 
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
 
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xos.h>
#include <X11/Intrinsic.h>
 
 
typedef struct _XlibRgbCmap XlibRgbCmap;
 
struct _XlibRgbCmap {
  unsigned int colors[256];
  unsigned char lut[256]; /* for 8-bit modes */
};
 
void
xlib_rgb_init (Display *display, Screen *screen);
void
xlib_rgb_init_with_depth (Display *display, Screen *screen, int prefDepth);
 
unsigned long
xlib_rgb_xpixel_from_rgb (unsigned int rgb);
 
void
xlib_rgb_gc_set_foreground (GC gc, unsigned int rgb);
 
void
xlib_rgb_gc_set_background (GC gc, unsigned int rgb);
 
typedef enum
{
  XLIB_RGB_DITHER_NONE,
  XLIB_RGB_DITHER_NORMAL,
  XLIB_RGB_DITHER_MAX
} XlibRgbDither;
 
void
xlib_draw_rgb_image (Drawable drawable,
             GC gc,
             int x,
             int y,
             int width,
             int height,
             XlibRgbDither dith,
             unsigned char *rgb_buf,
             int rowstride);
 
void
xlib_draw_rgb_image_dithalign (Drawable drawable,
                   GC gc,
                   int x,
                   int y,
                   int width,
                   int height,
                   XlibRgbDither dith,
                   unsigned char *rgb_buf,
                   int rowstride,
                   int xdith,
                   int ydith);
 
void
xlib_draw_rgb_32_image (Drawable drawable,
            GC gc,
            int x,
            int y,
            int width,
            int height,
            XlibRgbDither dith,
            unsigned char *buf,
            int rowstride);
 
void
xlib_draw_gray_image (Drawable drawable,
              GC gc,
              int x,
              int y,
              int width,
              int height,
              XlibRgbDither dith,
              unsigned char *buf,
              int rowstride);
 
XlibRgbCmap *
xlib_rgb_cmap_new (unsigned int *colors, int n_colors);
 
void
xlib_rgb_cmap_free (XlibRgbCmap *cmap);
 
void
xlib_draw_indexed_image (Drawable drawable,
                         GC gc,
                         int x,
                         int y,
                         int width,
                         int height,
                         XlibRgbDither dith,
                         unsigned char *buf,
                         int rowstride,
                         XlibRgbCmap *cmap);
 
/* Below are some functions which are primarily useful for debugging
   and experimentation. */
Bool
xlib_rgb_ditherable (void);
 
void
xlib_rgb_set_verbose (Bool verbose);
 
/* experimental colormap stuff */
void
xlib_rgb_set_install (Bool install);
 
void
xlib_rgb_set_min_colors (int min_colors);
 
Colormap
xlib_rgb_get_cmap (void);
 
Visual *
xlib_rgb_get_visual (void);
 
XVisualInfo *
xlib_rgb_get_visual_info (void);
 
int
xlib_rgb_get_depth (void);
 
Display *
xlib_rgb_get_display (void);
 
Screen *
xlib_rgb_get_screen (void);
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
 
#endif /* __XLIB_RGB_H__ */