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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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__
#include <gdk-pixbuf/gdk-pixbuf.h>
G_BEGIN_DECLS
#include <X11/Xlib.h>
#include <X11/Xutil.h>
/**
* XlibRgbCmap:
* @colors: FIXME.
* @lut: FIXME.
*
* FIXME: Describe this.
*/
typedef struct _XlibRgbCmap XlibRgbCmap;
struct _XlibRgbCmap {
unsigned int colors[256];
unsigned char lut[256]; /* for 8-bit modes */
};
_GDK_PIXBUF_EXTERN
void
xlib_rgb_init (Display *display, Screen *screen);
_GDK_PIXBUF_EXTERN
void
xlib_rgb_init_with_depth (Display *display, Screen *screen, int prefDepth);
_GDK_PIXBUF_EXTERN
unsigned long
xlib_rgb_xpixel_from_rgb (guint32 rgb);
_GDK_PIXBUF_EXTERN
void
xlib_rgb_gc_set_foreground (GC gc, guint32 rgb);
_GDK_PIXBUF_EXTERN
void
xlib_rgb_gc_set_background (GC gc, guint32 rgb);
/**
* XlibRgbDither:
* @XLIB_RGB_DITHER_NONE: Specifies no dithering.
* @XLIB_RGB_DITHER_NORMAL: Specifies dithering only on pseudocolor
* displays.
* @XLIB_RGB_DITHER_MAX: Specifies dithering on high color displays.
*
* These values are used to specify which dithering method should be
* used. <symbol>XLIB_RGB_DITHER_NONE</symbol> will use no dithering
* and simply map the colors in an RGB buffer to the closest colors
* that the display can provide.
* <symbol>XLIB_RGB_DITHER_NORMAL</symbol> will provide dithering
* only on pseudocolor displays.
* <symbol>XLIB_RGB_DITHER_MAX</symbol> will provide dithering on
* pseudocolor and 16-bit truecolor or “high color”
* displays.
*/
typedef enum
{
XLIB_RGB_DITHER_NONE,
XLIB_RGB_DITHER_NORMAL,
XLIB_RGB_DITHER_MAX
} XlibRgbDither;
_GDK_PIXBUF_EXTERN
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);
_GDK_PIXBUF_EXTERN
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);
_GDK_PIXBUF_EXTERN
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);
_GDK_PIXBUF_EXTERN
void
xlib_draw_gray_image (Drawable drawable,
GC gc,
int x,
int y,
int width,
int height,
XlibRgbDither dith,
unsigned char *buf,
int rowstride);
_GDK_PIXBUF_EXTERN
XlibRgbCmap *
xlib_rgb_cmap_new (guint32 *colors, int n_colors);
_GDK_PIXBUF_EXTERN
void
xlib_rgb_cmap_free (XlibRgbCmap *cmap);
_GDK_PIXBUF_EXTERN
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. */
_GDK_PIXBUF_EXTERN
Bool
xlib_rgb_ditherable (void);
_GDK_PIXBUF_EXTERN
void
xlib_rgb_set_verbose (Bool verbose);
/* experimental colormap stuff */
_GDK_PIXBUF_EXTERN
void
xlib_rgb_set_install (Bool install);
_GDK_PIXBUF_EXTERN
void
xlib_rgb_set_min_colors (int min_colors);
_GDK_PIXBUF_EXTERN
Colormap
xlib_rgb_get_cmap (void);
_GDK_PIXBUF_EXTERN
Visual *
xlib_rgb_get_visual (void);
_GDK_PIXBUF_EXTERN
XVisualInfo *
xlib_rgb_get_visual_info (void);
_GDK_PIXBUF_EXTERN
int
xlib_rgb_get_depth (void);
_GDK_PIXBUF_EXTERN
Display *
xlib_rgb_get_display (void);
_GDK_PIXBUF_EXTERN
Screen *
xlib_rgb_get_screen (void);
G_END_DECLS
#endif /* __XLIB_RGB_H__ */
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