/* -*- 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 */ /* 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 * Manish Singh * Tim Janik * Peter Mattis * Spencer Kimball * Josh MacDonald * Christopher Blizzard * Owen Taylor * Shawn T. Amundson * Roland Mainz */ #ifndef __XLIB_RGB_H__ #define __XLIB_RGB_H__ /* Force ANSI C prototypes from X11 headers */ #undef FUNCPROTO #define FUNCPROTO 15 #include #include #include #include _XFUNCPROTOBEGIN /* Porting Note: * If you are going to use this code somewhere other than mozilla * you will need to set these defines. It's pretty easy for Intel * but I'm not sure about other platforms. */ #ifdef USE_MOZILLA_TYPES /* prtypes contains definitions for uint32/int32 and uint16/int16 */ #include "prtypes.h" #include "prcpucfg.h" #define NS_TO_XXLIB_RGB(ns) (ns & 0xff) << 16 | (ns & 0xff00) | ((ns >> 16) & 0xff) #else typedef unsigned int uint32; typedef int int32; typedef unsigned short uint16; typedef short int16; #endif /* USE_MOZILLA_TYPES */ typedef struct _XlibRgbCmap XlibRgbCmap; typedef struct _XlibRgbHandle XlibRgbHandle; struct _XlibRgbCmap { unsigned int colors[256]; unsigned char lut[256]; /* for 8-bit modes */ }; typedef enum { XLIB_RGB_DITHER_NONE, XLIB_RGB_DITHER_NORMAL, XLIB_RGB_DITHER_MAX } XlibRgbDither; typedef struct { const char *handle_name; int pseudogray; /* emulate GrayScale via PseudoColor visuals */ int install_colormap; int disallow_image_tiling; int disallow_mit_shmem; int verbose; XVisualInfo xtemplate; long xtemplate_mask; } XlibRgbArgs; XlibRgbHandle * xxlib_rgb_create_handle (Display *display, Screen *screen, XlibRgbArgs *args); void xxlib_rgb_destroy_handle (XlibRgbHandle *handle); unsigned long xxlib_rgb_xpixel_from_rgb (XlibRgbHandle *handle, uint32 rgb); void xxlib_rgb_gc_set_foreground (XlibRgbHandle *handle, GC gc, uint32 rgb); void xxlib_rgb_gc_set_background (XlibRgbHandle *handle, GC gc, uint32 rgb); void xxlib_draw_rgb_image (XlibRgbHandle *handle, Drawable drawable, GC gc, int x, int y, int width, int height, XlibRgbDither dith, unsigned char *rgb_buf, int rowstride); void xxlib_draw_rgb_image_dithalign (XlibRgbHandle *handle, 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 xxlib_draw_rgb_32_image (XlibRgbHandle *handle, Drawable drawable, GC gc, int x, int y, int width, int height, XlibRgbDither dith, unsigned char *buf, int rowstride); void xxlib_draw_gray_image (XlibRgbHandle *handle, Drawable drawable, GC gc, int x, int y, int width, int height, XlibRgbDither dith, unsigned char *buf, int rowstride); XlibRgbCmap * xxlib_rgb_cmap_new (XlibRgbHandle *handle, uint32 *colors, int n_colors); void xxlib_rgb_cmap_free (XlibRgbHandle *handle, XlibRgbCmap *cmap); void xxlib_draw_indexed_image (XlibRgbHandle *handle, Drawable drawable, GC gc, int x, int y, int width, int height, XlibRgbDither dith, unsigned char *buf, int rowstride, XlibRgbCmap *cmap); void xxlib_draw_xprint_scaled_rgb_image( XlibRgbHandle *handle, Drawable drawable, long paper_resolution, long image_resolution, GC gc, int x, int y, int width, int height, XlibRgbDither dith, unsigned char *rgb_buf, int rowstride); /* Below are some functions which are primarily useful for debugging and experimentation. */ Bool xxlib_rgb_ditherable (XlibRgbHandle *handle); void xxlib_rgb_set_verbose (XlibRgbHandle *handle, Bool verbose); void xxlib_rgb_set_min_colors (XlibRgbHandle *handle, int min_colors); Colormap xxlib_rgb_get_cmap (XlibRgbHandle *handle); Visual * xxlib_rgb_get_visual (XlibRgbHandle *handle); XVisualInfo * xxlib_rgb_get_visual_info (XlibRgbHandle *handle); int xxlib_rgb_get_depth (XlibRgbHandle *handle); /* hint: if you don't how to obtain a handle - use |xxlib_find_handle()| :-) */ Display * xxlib_rgb_get_display (XlibRgbHandle *handle); Screen * xxlib_rgb_get_screen (XlibRgbHandle *handle); unsigned long xxlib_get_prec_from_mask(unsigned long); unsigned long xxlib_get_shift_from_mask(unsigned long); /* default name - for cases where there is only one XlibRgbHandle required */ #define XXLIBRGB_DEFAULT_HANDLE ("xxlib-default") Bool xxlib_register_handle(const char *name, XlibRgbHandle *handle); Bool xxlib_deregister_handle(const char *name); XlibRgbHandle * xxlib_find_handle(const char *name); _XFUNCPROTOEND #endif /* !__XLIB_RGB_H__ */