sdl-ios-xcode: src/video/Xext/XmuStdCmap/CrCmap.c annotate

annotate src/video/Xext/XmuStdCmap/CrCmap.c @ 4525:3abf0b9cafad

pelya 2010-07-12 03:53:48 PDT In function GLES_RenderCopy() in SDL_renderer_gles.c:819 there is one memcpy() that can be avoided if we're updating whole texture. Because of that the SDL 1.3 in compatibility mode is working even slower than software rendering in SDL 1.2.

author	Sam Lantinga <slouken@libsdl.org>
date	Wed, 14 Jul 2010 07:31:35 -0700
parents	2032348afed1
children

rev	line source
2185 2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	1 /* $Xorg: CrCmap.c,v 1.4 2001/02/09 02:03:51 xorgcvs Exp $ */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	2
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	3 /*
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	4
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	5 Copyright 1989, 1998 The Open Group
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	6
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	7 Permission to use, copy, modify, distribute, and sell this software and its
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	8 documentation for any purpose is hereby granted without fee, provided that
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	9 the above copyright notice appear in all copies and that both that
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	10 copyright notice and this permission notice appear in supporting
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	11 documentation.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	12
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	13 The above copyright notice and this permission notice shall be included in
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	14 all copies or substantial portions of the Software.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	15
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	17 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	18 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	19 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	20 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	21 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	22
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	23 Except as contained in this notice, the name of The Open Group shall not be
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	24 used in advertising or otherwise to promote the sale, use or other dealings
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	25 in this Software without prior written authorization from The Open Group.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	26
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	27 */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	28 /* $XFree86: xc/lib/Xmu/CrCmap.c,v 3.6 2001/01/17 19:42:53 dawes Exp $ */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	29
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	30 /*
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	31 * Author: Donna Converse, MIT X Consortium
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	32 */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	33
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	34 /*
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	35 * CreateCmap.c - given a standard colormap description, make the map.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	36 */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	37
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	38 #ifdef HAVE_CONFIG_H
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	39 #include <config.h>
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	40 #endif
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	41 #include <stdio.h>
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	42 #include <stdlib.h>
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	43 #include <X11/Xlib.h>
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	44 #include <X11/Xutil.h>
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	45 #include "../extensions/StdCmap.h"
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	46
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	47 /*
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	48 * Prototypes
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	49 */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	50 /* allocate entire map Read Only */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	51 static int ROmap(Display *, Colormap, unsigned long[], int, int);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	52
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	53 /* allocate a cell, prefer Read Only */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	54 static Status ROorRWcell(Display *, Colormap, unsigned long[], int,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	55 XColor *, unsigned long);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	56
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	57 /* allocate a cell Read Write */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	58 static Status RWcell(Display , Colormap, XColor , XColor *,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	59 unsigned long *);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	60
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	61 /* for quicksort */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	62 static int compare(_Xconst void , _Xconst void );
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	63
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	64 /* find contiguous sequence of cells */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	65 static Status contiguous(unsigned long[], int, int, unsigned long, int *,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	66 int *);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	67
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	68 /* frees resources before quitting */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	69 static void free_cells(Display *, Colormap, unsigned long[], int, int);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	70
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	71 /* create a map in a RO visual type */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	72 static Status readonly_map(Display , XVisualInfo , XStandardColormap *);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	73
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	74 /* create a map in a RW visual type */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	75 static Status readwrite_map(Display , XVisualInfo , XStandardColormap *);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	76
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	77 #define lowbit(x) ((x) & (~(x) + 1))
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	78 #define TRUEMATCH(mult,max,mask) \
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	79 (colormap->max * colormap->mult <= vinfo->mask && \
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	80 lowbit(vinfo->mask) == colormap->mult)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	81
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	82 /*
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	83 * To create any one colormap which is described by an XStandardColormap
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	84 * structure, use XmuCreateColormap().
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	85 *
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	86 * Return 0 on failure, non-zero on success.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	87 * Resources created by this function are not made permanent.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	88 * No argument error checking is provided. Use at your own risk.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	89 *
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	90 * All colormaps are created with read only allocations, with the exception
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	91 * of read only allocations of colors in the default map or otherwise
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	92 * which fail to return the expected pixel value, and these are individually
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	93 * defined as read/write allocations. This is done so that all the cells
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	94 * defined in the default map are contiguous, for use in image processing.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	95 * This typically happens with White and Black in the default map.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	96 *
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	97 * Colormaps of static visuals are considered to be successfully created if
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	98 * the map of the static visual matches the definition given in the
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	99 * standard colormap structure.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	100 */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	101
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	102 Status
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	103 XmuCreateColormap(Display * dpy, XStandardColormap * colormap)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	104 /* dpy - specifies the connection under which the map is created
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	105 * colormap - specifies the map to be created, and returns, particularly
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	106 * if the map is created as a subset of the default colormap
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	107 * of the screen, the base_pixel of the map.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	108 */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	109 {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	110 XVisualInfo vinfo_template; /* template visual information */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	111 XVisualInfo vinfo; / matching visual information */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	112 XVisualInfo vpointer; / for freeing the entire list */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	113 long vinfo_mask; /* specifies the visual mask value */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	114 int n; /* number of matching visuals */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	115 int status;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	116
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	117 vinfo_template.visualid = colormap->visualid;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	118 vinfo_mask = VisualIDMask;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	119 if ((vinfo =
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	120 XGetVisualInfo(dpy, vinfo_mask, &vinfo_template, &n)) == NULL)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	121 return 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	122
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	123 /* A visual id may be valid on multiple screens. Also, there may
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	124 * be multiple visuals with identical visual ids at different depths.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	125 * If the colormap is the Default Colormap, use the Default Visual.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	126 * Otherwise, arbitrarily, use the deepest visual.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	127 */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	128 vpointer = vinfo;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	129 if (n > 1) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	130 register int i;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	131 register int screen_number;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	132 Bool def_cmap;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	133
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	134 def_cmap = False;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	135 for (screen_number = ScreenCount(dpy); --screen_number >= 0;)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	136 if (colormap->colormap == DefaultColormap(dpy, screen_number)) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	137 def_cmap = True;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	138 break;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	139 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	140
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	141 if (def_cmap) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	142 for (i = 0; i < n; i++, vinfo++) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	143 if (vinfo->visual == DefaultVisual(dpy, screen_number))
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	144 break;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	145 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	146 } else {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	147 int maxdepth = 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	148 XVisualInfo *v = NULL;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	149
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	150 for (i = 0; i < n; i++, vinfo++)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	151 if (vinfo->depth > maxdepth) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	152 maxdepth = vinfo->depth;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	153 v = vinfo;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	154 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	155 vinfo = v;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	156 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	157 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	158
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	159 if (vinfo->class == PseudoColor \|\| vinfo->class == DirectColor \|\|
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	160 vinfo->class == GrayScale)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	161 status = readwrite_map(dpy, vinfo, colormap);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	162 else if (vinfo->class == TrueColor)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	163 status = TRUEMATCH(red_mult, red_max, red_mask) &&
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	164 TRUEMATCH(green_mult, green_max, green_mask) &&
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	165 TRUEMATCH(blue_mult, blue_max, blue_mask);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	166 else
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	167 status = readonly_map(dpy, vinfo, colormap);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	168
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	169 XFree((char *) vpointer);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	170 return status;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	171 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	172
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	173 /****************************************************************************/
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	174 static Status
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	175 readwrite_map(Display * dpy, XVisualInfo * vinfo,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	176 XStandardColormap * colormap)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	177 {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	178 register unsigned long i, n; /* index counters */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	179 unsigned long ncolors; /* number of colors to be defined */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	180 int npixels; /* number of pixels allocated R/W */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	181 int first_index; /* first index of pixels to use */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	182 int remainder; /* first index of remainder */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	183 XColor color; /* the definition of a color */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	184 unsigned long pixels; / array of colormap pixels */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	185 unsigned long delta;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	186
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	187
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	188 /* Determine ncolors, the number of colors to be defined.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	189 * Insure that 1 < ncolors <= the colormap size.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	190 */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	191 if (vinfo->class == DirectColor) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	192 ncolors = colormap->red_max;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	193 if (colormap->green_max > ncolors)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	194 ncolors = colormap->green_max;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	195 if (colormap->blue_max > ncolors)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	196 ncolors = colormap->blue_max;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	197 ncolors++;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	198 delta = lowbit(vinfo->red_mask) +
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	199 lowbit(vinfo->green_mask) + lowbit(vinfo->blue_mask);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	200 } else {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	201 ncolors = colormap->red_max * colormap->red_mult +
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	202 colormap->green_max * colormap->green_mult +
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	203 colormap->blue_max * colormap->blue_mult + 1;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	204 delta = 1;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	205 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	206 if (ncolors <= 1 \|\| (int) ncolors > vinfo->colormap_size)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	207 return 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	208
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	209 /* Allocate Read/Write as much of the colormap as we can possibly get.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	210 * Then insure that the pixels we were allocated are given in
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	211 * monotonically increasing order, using a quicksort. Next, insure
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	212 * that our allocation includes a subset of contiguous pixels at least
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	213 * as long as the number of colors to be defined. Now we know that
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	214 * these conditions are met:
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	215 * 1) There are no free cells in the colormap.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	216 * 2) We have a contiguous sequence of pixels, monotonically
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	217 * increasing, of length >= the number of colors requested.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	218 *
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	219 * One cell at a time, we will free, compute the next color value,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	220 * then allocate read only. This takes a long time.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	221 * This is done to insure that cells are allocated read only in the
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	222 * contiguous order which we prefer. If the server has a choice of
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	223 * cells to grant to an allocation request, the server may give us any
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	224 * cell, so that is why we do these slow gymnastics.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	225 */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	226
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	227 if ((pixels = (unsigned long *) calloc((unsigned) vinfo->colormap_size,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	228 sizeof(unsigned long))) == NULL)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	229 return 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	230
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	231 if ((npixels = ROmap(dpy, colormap->colormap, pixels,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	232 vinfo->colormap_size, ncolors)) == 0) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	233 free((char *) pixels);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	234 return 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	235 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	236
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	237 qsort((char *) pixels, npixels, sizeof(unsigned long), compare);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	238
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	239 if (!contiguous
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	240 (pixels, npixels, ncolors, delta, &first_index, &remainder)) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	241 /* can't find enough contiguous cells, give up */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	242 XFreeColors(dpy, colormap->colormap, pixels, npixels,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	243 (unsigned long) 0);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	244 free((char *) pixels);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	245 return 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	246 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	247 colormap->base_pixel = pixels[first_index];
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	248
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	249 /* construct a gray map */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	250 if (colormap->red_mult == 1 && colormap->green_mult == 1 &&
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	251 colormap->blue_mult == 1)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	252 for (n = colormap->base_pixel, i = 0; i < ncolors; i++, n += delta) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	253 color.pixel = n;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	254 color.blue = color.green = color.red =
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	255 (unsigned short) ((i * 65535) / (colormap->red_max +
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	256 colormap->green_max +
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	257 colormap->blue_max));
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	258
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	259 if (!ROorRWcell(dpy, colormap->colormap, pixels, npixels, &color,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	260 first_index + i))
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	261 return 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	262 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	263
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	264 /* construct a red ramp map */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	265 else if (colormap->green_max == 0 && colormap->blue_max == 0)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	266 for (n = colormap->base_pixel, i = 0; i < ncolors; i++, n += delta) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	267 color.pixel = n;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	268 color.red = (unsigned short) ((i * 65535) / colormap->red_max);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	269 color.green = color.blue = 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	270
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	271 if (!ROorRWcell(dpy, colormap->colormap, pixels, npixels, &color,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	272 first_index + i))
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	273 return 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	274 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	275
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	276 /* construct a green ramp map */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	277 else if (colormap->red_max == 0 && colormap->blue_max == 0)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	278 for (n = colormap->base_pixel, i = 0; i < ncolors; i++, n += delta) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	279 color.pixel = n;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	280 color.green =
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	281 (unsigned short) ((i * 65535) / colormap->green_max);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	282 color.red = color.blue = 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	283
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	284 if (!ROorRWcell(dpy, colormap->colormap, pixels, npixels, &color,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	285 first_index + i))
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	286 return 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	287 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	288
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	289 /* construct a blue ramp map */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	290 else if (colormap->red_max == 0 && colormap->green_max == 0)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	291 for (n = colormap->base_pixel, i = 0; i < ncolors; i++, n += delta) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	292 color.pixel = n;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	293 color.blue = (unsigned short) ((i * 65535) / colormap->blue_max);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	294 color.red = color.green = 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	295
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	296 if (!ROorRWcell(dpy, colormap->colormap, pixels, npixels, &color,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	297 first_index + i))
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	298 return 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	299 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	300
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	301 /* construct a standard red green blue cube map */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	302 else {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	303 #define calc(max,mult) (((n / colormap->mult) % \
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	304 (colormap->max + 1)) * 65535) / colormap->max
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	305
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	306 for (n = 0, i = 0; i < ncolors; i++, n += delta) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	307 color.pixel = n + colormap->base_pixel;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	308 color.red = calc(red_max, red_mult);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	309 color.green = calc(green_max, green_mult);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	310 color.blue = calc(blue_max, blue_mult);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	311 if (!ROorRWcell(dpy, colormap->colormap, pixels, npixels, &color,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	312 first_index + i))
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	313 return 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	314 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	315 #undef calc
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	316 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	317 /* We have a read-only map defined. Now free unused cells,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	318 * first those occuring before the contiguous sequence begins,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	319 * then any following the contiguous sequence.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	320 */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	321
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	322 if (first_index)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	323 XFreeColors(dpy, colormap->colormap, pixels, first_index,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	324 (unsigned long) 0);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	325 if (remainder)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	326 XFreeColors(dpy, colormap->colormap,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	327 &(pixels[first_index + ncolors]), remainder,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	328 (unsigned long) 0);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	329
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	330 free((char *) pixels);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	331 return 1;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	332 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	333
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	334
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	335 /****************************************************************************/
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	336 static int
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	337 ROmap(Display * dpy, Colormap cmap, unsigned long pixels[], int m, int n)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	338 /*
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	339 * dpy - the X server connection
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	340 * cmap - specifies colormap ID
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	341 * pixels - returns pixel allocations
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	342 * m - specifies colormap size
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	343 * n - specifies number of colors
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	344 */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	345 {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	346 register int p;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	347
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	348 /* first try to allocate the entire colormap */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	349 if (XAllocColorCells(dpy, cmap, 1, (unsigned long *) NULL,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	350 (unsigned) 0, pixels, (unsigned) m))
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	351 return m;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	352
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	353 /* Allocate all available cells in the colormap, using a binary
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	354 * algorithm to discover how many cells we can allocate in the colormap.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	355 */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	356 m--;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	357 while (n <= m) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	358 p = n + ((m - n + 1) / 2);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	359 if (XAllocColorCells(dpy, cmap, 1, (unsigned long *) NULL,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	360 (unsigned) 0, pixels, (unsigned) p)) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	361 if (p == m)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	362 return p;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	363 else {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	364 XFreeColors(dpy, cmap, pixels, p, (unsigned long) 0);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	365 n = p;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	366 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	367 } else
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	368 m = p - 1;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	369 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	370 return 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	371 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	372
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	373
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	374 /****************************************************************************/
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	375 static Status
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	376 contiguous(unsigned long pixels[], int npixels, int ncolors,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	377 unsigned long delta, int first, int rem)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	378 /* pixels - specifies allocated pixels
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	379 * npixels - specifies count of alloc'd pixels
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	380 * ncolors - specifies needed sequence length
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	381 * delta - between pixels
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	382 * first - returns first index of sequence
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	383 * rem - returns first index after sequence, or 0, if none follow
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	384 */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	385 {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	386 register int i = 1; /* walking index into the pixel array */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	387 register int count = 1; /* length of sequence discovered so far */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	388
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	389 *first = 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	390 if (npixels == ncolors) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	391 *rem = 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	392 return 1;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	393 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	394 *rem = npixels - 1;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	395 while (count < ncolors && ncolors - count <= *rem) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	396 if (pixels[i - 1] + delta == pixels[i])
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	397 count++;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	398 else {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	399 count = 1;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	400 *first = i;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	401 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	402 i++;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	403 (*rem)--;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	404 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	405 if (count != ncolors)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	406 return 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	407 return 1;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	408 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	409
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	410
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	411 /****************************************************************************/
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	412 static Status
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	413 ROorRWcell(Display * dpy, Colormap cmap, unsigned long pixels[],
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	414 int npixels, XColor * color, unsigned long p)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	415 {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	416 unsigned long pixel;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	417 XColor request;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	418
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	419 /* Free the read/write allocation of one cell in the colormap.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	420 * Request a read only allocation of one cell in the colormap.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	421 * If the read only allocation cannot be granted, give up, because
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	422 * there must be no free cells in the colormap.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	423 * If the read only allocation is granted, but gives us a cell which
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	424 * is not the one that we just freed, it is probably the case that
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	425 * we are trying allocate White or Black or some other color which
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	426 * already has a read-only allocation in the map. So we try to
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	427 * allocate the previously freed cell with a read/write allocation,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	428 * because we want contiguous cells for image processing algorithms.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	429 */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	430
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	431 pixel = color->pixel;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	432 request.red = color->red;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	433 request.green = color->green;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	434 request.blue = color->blue;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	435
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	436 XFreeColors(dpy, cmap, &pixel, 1, (unsigned long) 0);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	437 if (!XAllocColor(dpy, cmap, color)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	438 \|\| (color->pixel != pixel &&
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	439 (!RWcell(dpy, cmap, color, &request, &pixel)))) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	440 free_cells(dpy, cmap, pixels, npixels, (int) p);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	441 return 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	442 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	443 return 1;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	444 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	445
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	446
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	447 /****************************************************************************/
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	448 static void
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	449 free_cells(Display * dpy, Colormap cmap, unsigned long pixels[],
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	450 int npixels, int p)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	451 /*
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	452 * pixels - to be freed
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	453 * npixels - original number allocated
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	454 */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	455 {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	456 /* One of the npixels allocated has already been freed.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	457 * p is the index of the freed pixel.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	458 * First free the pixels preceeding p, and there are p of them;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	459 * then free the pixels following p, there are npixels - p - 1 of them.
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	460 */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	461 XFreeColors(dpy, cmap, pixels, p, (unsigned long) 0);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	462 XFreeColors(dpy, cmap, &(pixels[p + 1]), npixels - p - 1,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	463 (unsigned long) 0);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	464 free((char *) pixels);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	465 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	466
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	467
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	468 /****************************************************************************/
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	469 static Status
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	470 RWcell(Display * dpy, Colormap cmap, XColor * color, XColor * request,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	471 unsigned long *pixel)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	472 {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	473 unsigned long n = *pixel;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	474
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	475 XFreeColors(dpy, cmap, &(color->pixel), 1, (unsigned long) 0);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	476 if (!XAllocColorCells(dpy, cmap, (Bool) 0, (unsigned long *) NULL,
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	477 (unsigned) 0, pixel, (unsigned) 1))
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	478 return 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	479 if (*pixel != n) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	480 XFreeColors(dpy, cmap, pixel, 1, (unsigned long) 0);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	481 return 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	482 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	483 color->pixel = *pixel;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	484 color->flags = DoRed \| DoGreen \| DoBlue;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	485 color->red = request->red;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	486 color->green = request->green;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	487 color->blue = request->blue;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	488 XStoreColors(dpy, cmap, color, 1);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	489 return 1;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	490 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	491
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	492
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	493 /****************************************************************************/
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	494 static int
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	495 compare(_Xconst void e1, _Xconst void e2)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	496 {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	497 return ((int) ((long ) e1 - (long ) e2));
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	498 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	499
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	500
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	501 /****************************************************************************/
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	502 static Status
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	503 readonly_map(Display * dpy, XVisualInfo * vinfo, XStandardColormap * colormap)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	504 {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	505 int i, last_pixel;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	506 XColor color;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	507
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	508 last_pixel = (colormap->red_max + 1) * (colormap->green_max + 1) *
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	509 (colormap->blue_max + 1) + colormap->base_pixel - 1;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	510
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	511 for (i = colormap->base_pixel; i <= last_pixel; i++) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	512
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	513 color.pixel = (unsigned long) i;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	514 color.red = (unsigned short)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	515 (((i / colormap->red_mult) * 65535) / colormap->red_max);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	516
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	517 if (vinfo->class == StaticColor) {
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	518 color.green = (unsigned short)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	519 ((((i / colormap->green_mult) % (colormap->green_max + 1)) *
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	520 65535) / colormap->green_max);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	521 color.blue = (unsigned short)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	522 (((i % colormap->green_mult) * 65535) / colormap->blue_max);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	523 } else /* vinfo->class == GrayScale, old style allocation XXX */
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	524 color.green = color.blue = color.red;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	525
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	526 XAllocColor(dpy, colormap->colormap, &color);
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	527 if (color.pixel != (unsigned long) i)
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	528 return 0;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	529 }
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	530 return 1;
2032348afed1 This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is Bob Pendleton <bob@pendleton.com> parents: diff changeset	531 }

Mercurial > sdl-ios-xcode

annotate src/video/Xext/XmuStdCmap/CrCmap.c @ 4525:3abf0b9cafad