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gdk-pixbuf-xlibrgb.h
/* -*- 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__ */