mirror of
https://github.com/gryf/wmaker.git
synced 2025-12-19 04:20:27 +01:00
0a47a19b3e
This patch removes bits and pieces of xmu that for some reason have been bundled with wmaker. I can very well imagine that at the time they were bundled, xmu was not, was not available everywhere, or whatever. I couldn't come across a system that doesn't have these things in its system-supplied x libs, though i've been carrying this since january, and my memory is quite flakey at times. certainly nothing xorg is at danger, nor xfree86 dating back to at least 3.3. i believe this stuff should be everywhere that calls itself to be on par with x11r6.3 at the very least. it would be incredibly useful if people having access to commercial unixes could check this on things released in the past, say, 15 years. i believe back then i had solaris 8+and sco openserver 5+ covered.
760 lines
19 KiB
C
760 lines
19 KiB
C
/* context.c - X context management
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*
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* Raster graphics library
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*
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* Copyright (c) 1997-2003 Alfredo K. Kojima
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <config.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/Xatom.h>
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#include <X11/Xmu/StdCmap.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <math.h>
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#include "wraster.h"
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extern void _wraster_change_filter(int type);
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static Bool bestContext(Display * dpy, int screen_number, RContext * context);
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static RContextAttributes DEFAULT_CONTEXT_ATTRIBS = {
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RC_UseSharedMemory | RC_RenderMode | RC_ColorsPerChannel, /* flags */
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RDitheredRendering, /* render_mode */
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4, /* colors_per_channel */
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0,
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0,
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0,
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0,
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True, /* use_shared_memory */
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RMitchellFilter,
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RUseStdColormap
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};
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/*
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*
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* Colormap allocation for PseudoColor visuals:
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*
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*
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* switch standardColormap:
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* none:
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* allocate colors according to colors_per_channel
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*
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* best/default:
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* if there's a std colormap defined then use it
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*
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* else
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* create a std colormap and set it
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*/
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/*
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*----------------------------------------------------------------------
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* allocateStandardPseudoColor
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* Creates the internal colormap for PseudoColor, setting the
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* color values according to the supplied standard colormap.
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*
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* Returns: -
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*
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* Side effects: -
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*
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* Notes: -
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*----------------------------------------------------------------------
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*/
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static Bool allocateStandardPseudoColor(RContext * ctx, XStandardColormap * stdcmap)
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{
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int i;
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ctx->ncolors = stdcmap->red_max * stdcmap->red_mult
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+ stdcmap->green_max * stdcmap->green_mult + stdcmap->blue_max * stdcmap->blue_mult + 1;
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if (ctx->ncolors <= 1) {
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RErrorCode = RERR_INTERNAL;
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puts("wraster: bad standard colormap");
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return False;
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}
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ctx->colors = malloc(sizeof(XColor) * ctx->ncolors);
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if (!ctx->colors) {
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RErrorCode = RERR_NOMEMORY;
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return False;
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}
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ctx->pixels = malloc(sizeof(unsigned long) * ctx->ncolors);
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if (!ctx->pixels) {
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free(ctx->colors);
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ctx->colors = NULL;
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RErrorCode = RERR_NOMEMORY;
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return False;
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}
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#define calc(max,mult) (((i / stdcmap->mult) % \
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(stdcmap->max + 1)) * 65535) / stdcmap->max
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for (i = 0; i < ctx->ncolors; i++) {
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ctx->colors[i].pixel = i + stdcmap->base_pixel;
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ctx->colors[i].red = calc(red_max, red_mult);
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ctx->colors[i].green = calc(green_max, green_mult);
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ctx->colors[i].blue = calc(blue_max, blue_mult);
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ctx->pixels[i] = ctx->colors[i].pixel;
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}
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#undef calc
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return True;
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}
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static Bool setupStandardColormap(RContext * ctx, Atom property)
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{
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if (!XmuLookupStandardColormap(ctx->dpy, ctx->screen_number,
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ctx->visual->visualid, ctx->depth, property, True, True)) {
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RErrorCode = RERR_STDCMAPFAIL;
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return False;
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}
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return True;
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}
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static Bool allocatePseudoColor(RContext * ctx)
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{
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XColor *colors;
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XColor avcolors[256];
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int avncolors;
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int i, ncolors, r, g, b;
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int retries;
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int cpc = ctx->attribs->colors_per_channel;
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ncolors = cpc * cpc * cpc;
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if (ncolors > (1 << ctx->depth)) {
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/* reduce colormap size */
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cpc = ctx->attribs->colors_per_channel = 1 << ((int)ctx->depth / 3);
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ncolors = cpc * cpc * cpc;
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}
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assert(cpc >= 2 && ncolors <= (1 << ctx->depth));
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colors = malloc(sizeof(XColor) * ncolors);
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if (!colors) {
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RErrorCode = RERR_NOMEMORY;
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return False;
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}
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ctx->pixels = malloc(sizeof(unsigned long) * ncolors);
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if (!ctx->pixels) {
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free(colors);
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RErrorCode = RERR_NOMEMORY;
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return False;
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}
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i = 0;
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if ((ctx->attribs->flags & RC_GammaCorrection) && ctx->attribs->rgamma > 0
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&& ctx->attribs->ggamma > 0 && ctx->attribs->bgamma > 0) {
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double rg, gg, bg;
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double tmp;
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/* do gamma correction */
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rg = 1.0 / ctx->attribs->rgamma;
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gg = 1.0 / ctx->attribs->ggamma;
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bg = 1.0 / ctx->attribs->bgamma;
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for (r = 0; r < cpc; r++) {
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for (g = 0; g < cpc; g++) {
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for (b = 0; b < cpc; b++) {
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colors[i].red = (r * 0xffff) / (cpc - 1);
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colors[i].green = (g * 0xffff) / (cpc - 1);
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colors[i].blue = (b * 0xffff) / (cpc - 1);
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colors[i].flags = DoRed | DoGreen | DoBlue;
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tmp = (double)colors[i].red / 65536.0;
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colors[i].red = (unsigned short)(65536.0 * pow(tmp, rg));
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tmp = (double)colors[i].green / 65536.0;
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colors[i].green = (unsigned short)(65536.0 * pow(tmp, gg));
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tmp = (double)colors[i].blue / 65536.0;
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colors[i].blue = (unsigned short)(65536.0 * pow(tmp, bg));
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i++;
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}
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}
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}
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} else {
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for (r = 0; r < cpc; r++) {
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for (g = 0; g < cpc; g++) {
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for (b = 0; b < cpc; b++) {
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colors[i].red = (r * 0xffff) / (cpc - 1);
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colors[i].green = (g * 0xffff) / (cpc - 1);
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colors[i].blue = (b * 0xffff) / (cpc - 1);
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colors[i].flags = DoRed | DoGreen | DoBlue;
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i++;
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}
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}
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}
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}
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/* try to allocate the colors */
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for (i = 0; i < ncolors; i++) {
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if (!XAllocColor(ctx->dpy, ctx->cmap, &(colors[i]))) {
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colors[i].flags = 0; /* failed */
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} else {
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colors[i].flags = DoRed | DoGreen | DoBlue;
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}
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}
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/* try to allocate close values for the colors that couldn't
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* be allocated before */
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avncolors = (1 << ctx->depth > 256 ? 256 : 1 << ctx->depth);
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for (i = 0; i < avncolors; i++)
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avcolors[i].pixel = i;
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XQueryColors(ctx->dpy, ctx->cmap, avcolors, avncolors);
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for (i = 0; i < ncolors; i++) {
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if (colors[i].flags == 0) {
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int j;
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unsigned long cdiff = 0xffffffff, diff;
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unsigned long closest = 0;
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retries = 2;
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while (retries--) {
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/* find closest color */
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for (j = 0; j < avncolors; j++) {
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r = (colors[i].red - avcolors[i].red) >> 8;
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g = (colors[i].green - avcolors[i].green) >> 8;
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b = (colors[i].blue - avcolors[i].blue) >> 8;
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diff = r * r + g * g + b * b;
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if (diff < cdiff) {
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cdiff = diff;
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closest = j;
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}
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}
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/* allocate closest color found */
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colors[i].red = avcolors[closest].red;
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colors[i].green = avcolors[closest].green;
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colors[i].blue = avcolors[closest].blue;
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if (XAllocColor(ctx->dpy, ctx->cmap, &colors[i])) {
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colors[i].flags = DoRed | DoGreen | DoBlue;
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break; /* succeeded, don't need to retry */
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}
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#ifdef DEBUG
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printf("close color allocation failed. Retrying...\n");
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#endif
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}
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}
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}
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ctx->colors = colors;
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ctx->ncolors = ncolors;
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/* fill the pixels shortcut array */
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for (i = 0; i < ncolors; i++) {
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ctx->pixels[i] = ctx->colors[i].pixel;
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}
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return True;
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}
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static XColor *allocateGrayScale(RContext * ctx)
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{
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XColor *colors;
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XColor avcolors[256];
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int avncolors;
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int i, ncolors, r, g, b;
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int retries;
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int cpc = ctx->attribs->colors_per_channel;
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ncolors = cpc * cpc * cpc;
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if (ctx->vclass == StaticGray) {
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/* we might as well use all grays */
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ncolors = 1 << ctx->depth;
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} else {
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if (ncolors > (1 << ctx->depth)) {
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/* reduce colormap size */
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cpc = ctx->attribs->colors_per_channel = 1 << ((int)ctx->depth / 3);
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ncolors = cpc * cpc * cpc;
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}
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assert(cpc >= 2 && ncolors <= (1 << ctx->depth));
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}
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if (ncolors >= 256 && ctx->vclass == StaticGray) {
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/* don't need dithering for 256 levels of gray in StaticGray visual */
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ctx->attribs->render_mode = RBestMatchRendering;
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}
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colors = malloc(sizeof(XColor) * ncolors);
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if (!colors) {
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RErrorCode = RERR_NOMEMORY;
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return False;
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}
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for (i = 0; i < ncolors; i++) {
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colors[i].red = (i * 0xffff) / (ncolors - 1);
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colors[i].green = (i * 0xffff) / (ncolors - 1);
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colors[i].blue = (i * 0xffff) / (ncolors - 1);
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colors[i].flags = DoRed | DoGreen | DoBlue;
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}
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/* try to allocate the colors */
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for (i = 0; i < ncolors; i++) {
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#ifdef DEBUG
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printf("trying:%x,%x,%x\n", colors[i].red, colors[i].green, colors[i].blue);
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#endif
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if (!XAllocColor(ctx->dpy, ctx->cmap, &(colors[i]))) {
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colors[i].flags = 0; /* failed */
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#ifdef DEBUG
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printf("failed:%x,%x,%x\n", colors[i].red, colors[i].green, colors[i].blue);
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#endif
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} else {
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colors[i].flags = DoRed | DoGreen | DoBlue;
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#ifdef DEBUG
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printf("success:%x,%x,%x\n", colors[i].red, colors[i].green, colors[i].blue);
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#endif
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}
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}
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/* try to allocate close values for the colors that couldn't
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* be allocated before */
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avncolors = (1 << ctx->depth > 256 ? 256 : 1 << ctx->depth);
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for (i = 0; i < avncolors; i++)
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avcolors[i].pixel = i;
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XQueryColors(ctx->dpy, ctx->cmap, avcolors, avncolors);
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for (i = 0; i < ncolors; i++) {
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if (colors[i].flags == 0) {
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int j;
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unsigned long cdiff = 0xffffffff, diff;
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unsigned long closest = 0;
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retries = 2;
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while (retries--) {
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/* find closest color */
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for (j = 0; j < avncolors; j++) {
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r = (colors[i].red - avcolors[i].red) >> 8;
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g = (colors[i].green - avcolors[i].green) >> 8;
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b = (colors[i].blue - avcolors[i].blue) >> 8;
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diff = r * r + g * g + b * b;
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if (diff < cdiff) {
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cdiff = diff;
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closest = j;
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}
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}
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/* allocate closest color found */
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#ifdef DEBUG
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printf("best match:%x,%x,%x => %x,%x,%x\n", colors[i].red, colors[i].green,
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colors[i].blue, avcolors[closest].red, avcolors[closest].green,
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avcolors[closest].blue);
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#endif
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colors[i].red = avcolors[closest].red;
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colors[i].green = avcolors[closest].green;
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colors[i].blue = avcolors[closest].blue;
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if (XAllocColor(ctx->dpy, ctx->cmap, &colors[i])) {
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colors[i].flags = DoRed | DoGreen | DoBlue;
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break; /* succeeded, don't need to retry */
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}
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#ifdef DEBUG
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printf("close color allocation failed. Retrying...\n");
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#endif
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}
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}
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}
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return colors;
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}
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static Bool setupPseudoColorColormap(RContext * context)
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{
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Atom property = 0;
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if (context->attribs->standard_colormap_mode == RCreateStdColormap) {
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property = XInternAtom(context->dpy, "RGB_DEFAULT_MAP", False);
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if (!setupStandardColormap(context, property)) {
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return False;
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}
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}
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if (context->attribs->standard_colormap_mode != RIgnoreStdColormap) {
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XStandardColormap *maps;
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int count, i;
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if (!property) {
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property = XInternAtom(context->dpy, "RGB_BEST_MAP", False);
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if (!XGetRGBColormaps(context->dpy,
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DefaultRootWindow(context->dpy), &maps, &count, property)) {
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maps = NULL;
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}
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if (!maps) {
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property = XInternAtom(context->dpy, "RGB_DEFAULT_MAP", False);
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if (!XGetRGBColormaps(context->dpy,
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DefaultRootWindow(context->dpy), &maps, &count, property)) {
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maps = NULL;
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}
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}
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} else {
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if (!XGetRGBColormaps(context->dpy,
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DefaultRootWindow(context->dpy), &maps, &count, property)) {
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maps = NULL;
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}
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}
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if (maps) {
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int theMap = -1;
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for (i = 0; i < count; i++) {
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if (maps[i].visualid == context->visual->visualid) {
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theMap = i;
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break;
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}
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}
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if (theMap < 0) {
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puts("wrlib: no std cmap found");
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}
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if (theMap >= 0 && allocateStandardPseudoColor(context, &maps[theMap])) {
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context->std_rgb_map = XAllocStandardColormap();
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*context->std_rgb_map = maps[theMap];
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context->cmap = context->std_rgb_map->colormap;
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XFree(maps);
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return True;
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}
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XFree(maps);
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}
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}
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context->attribs->standard_colormap_mode = RIgnoreStdColormap;
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/* RIgnoreStdColormap and fallback */
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return allocatePseudoColor(context);
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}
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static char *mygetenv(char *var, int scr)
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{
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char *p;
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char varname[64];
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sprintf(varname, "%s%i", var, scr);
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p = getenv(varname);
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if (!p) {
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p = getenv(var);
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}
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return p;
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}
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static void gatherconfig(RContext * context, int screen_n)
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{
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char *ptr;
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ptr = mygetenv("WRASTER_GAMMA", screen_n);
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if (ptr) {
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float g1, g2, g3;
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if (sscanf(ptr, "%f/%f/%f", &g1, &g2, &g3) != 3 || g1 <= 0.0 || g2 <= 0.0 || g3 <= 0.0) {
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printf("wrlib: invalid value(s) for gamma correction \"%s\"\n", ptr);
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} else {
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context->attribs->flags |= RC_GammaCorrection;
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context->attribs->rgamma = g1;
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context->attribs->ggamma = g2;
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context->attribs->bgamma = g3;
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}
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}
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ptr = mygetenv("WRASTER_COLOR_RESOLUTION", screen_n);
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if (ptr) {
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int i;
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if (sscanf(ptr, "%d", &i) != 1 || i < 2 || i > 6) {
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printf("wrlib: invalid value for color resolution \"%s\"\n", ptr);
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} else {
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context->attribs->flags |= RC_ColorsPerChannel;
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context->attribs->colors_per_channel = i;
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}
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}
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ptr = mygetenv("WRASTER_OPTIMIZE_FOR_SPEED", screen_n);
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if (ptr) {
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context->flags.optimize_for_speed = 1;
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} else {
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context->flags.optimize_for_speed = 0;
|
|
}
|
|
|
|
}
|
|
|
|
static void getColormap(RContext * context, int screen_number)
|
|
{
|
|
Colormap cmap = None;
|
|
XStandardColormap *cmaps;
|
|
int ncmaps, i;
|
|
|
|
if (XGetRGBColormaps(context->dpy,
|
|
RootWindow(context->dpy, screen_number), &cmaps, &ncmaps, XA_RGB_DEFAULT_MAP)) {
|
|
for (i = 0; i < ncmaps; ++i) {
|
|
if (cmaps[i].visualid == context->visual->visualid) {
|
|
cmap = cmaps[i].colormap;
|
|
break;
|
|
}
|
|
}
|
|
XFree(cmaps);
|
|
}
|
|
if (cmap == None) {
|
|
XColor color;
|
|
|
|
cmap = XCreateColormap(context->dpy,
|
|
RootWindow(context->dpy, screen_number), context->visual, AllocNone);
|
|
|
|
color.red = color.green = color.blue = 0;
|
|
XAllocColor(context->dpy, cmap, &color);
|
|
context->black = color.pixel;
|
|
|
|
color.red = color.green = color.blue = 0xffff;
|
|
XAllocColor(context->dpy, cmap, &color);
|
|
context->white = color.pixel;
|
|
|
|
}
|
|
context->cmap = cmap;
|
|
}
|
|
|
|
static int count_offset(unsigned long mask)
|
|
{
|
|
int i;
|
|
|
|
i = 0;
|
|
while ((mask & 1) == 0) {
|
|
i++;
|
|
mask = mask >> 1;
|
|
}
|
|
return i;
|
|
}
|
|
|
|
RContext *RCreateContext(Display * dpy, int screen_number, RContextAttributes * attribs)
|
|
{
|
|
RContext *context;
|
|
XGCValues gcv;
|
|
|
|
context = malloc(sizeof(RContext));
|
|
if (!context) {
|
|
RErrorCode = RERR_NOMEMORY;
|
|
return NULL;
|
|
}
|
|
memset(context, 0, sizeof(RContext));
|
|
|
|
context->dpy = dpy;
|
|
|
|
context->screen_number = screen_number;
|
|
|
|
context->attribs = malloc(sizeof(RContextAttributes));
|
|
if (!context->attribs) {
|
|
free(context);
|
|
RErrorCode = RERR_NOMEMORY;
|
|
return NULL;
|
|
}
|
|
if (!attribs)
|
|
*context->attribs = DEFAULT_CONTEXT_ATTRIBS;
|
|
else
|
|
*context->attribs = *attribs;
|
|
|
|
if (!(context->attribs->flags & RC_StandardColormap)) {
|
|
context->attribs->standard_colormap_mode = RUseStdColormap;
|
|
}
|
|
|
|
if (!(context->attribs->flags & RC_ScalingFilter)) {
|
|
context->attribs->flags |= RC_ScalingFilter;
|
|
context->attribs->scaling_filter = RMitchellFilter;
|
|
}
|
|
|
|
/* get configuration from environment variables */
|
|
gatherconfig(context, screen_number);
|
|
#ifndef BENCH
|
|
_wraster_change_filter(context->attribs->scaling_filter);
|
|
#endif
|
|
if ((context->attribs->flags & RC_VisualID)) {
|
|
XVisualInfo *vinfo, templ;
|
|
int nret;
|
|
|
|
templ.screen = screen_number;
|
|
templ.visualid = context->attribs->visualid;
|
|
vinfo = XGetVisualInfo(context->dpy, VisualIDMask | VisualScreenMask, &templ, &nret);
|
|
if (!vinfo || nret == 0) {
|
|
free(context);
|
|
RErrorCode = RERR_BADVISUALID;
|
|
return NULL;
|
|
}
|
|
|
|
if (vinfo[0].visual == DefaultVisual(dpy, screen_number)) {
|
|
context->attribs->flags |= RC_DefaultVisual;
|
|
} else {
|
|
XSetWindowAttributes attr;
|
|
unsigned long mask;
|
|
|
|
context->visual = vinfo[0].visual;
|
|
context->depth = vinfo[0].depth;
|
|
context->vclass = vinfo[0].class;
|
|
getColormap(context, screen_number);
|
|
attr.colormap = context->cmap;
|
|
attr.override_redirect = True;
|
|
attr.border_pixel = 0;
|
|
attr.background_pixel = 0;
|
|
mask = CWBorderPixel | CWColormap | CWOverrideRedirect | CWBackPixel;
|
|
context->drawable =
|
|
XCreateWindow(dpy, RootWindow(dpy, screen_number), 1, 1,
|
|
1, 1, 0, context->depth, CopyFromParent, context->visual, mask, &attr);
|
|
/* XSetWindowColormap(dpy, context->drawable, attr.colormap); */
|
|
}
|
|
XFree(vinfo);
|
|
}
|
|
|
|
/* use default */
|
|
if (!context->visual) {
|
|
if ((context->attribs->flags & RC_DefaultVisual)
|
|
|| !bestContext(dpy, screen_number, context)) {
|
|
context->visual = DefaultVisual(dpy, screen_number);
|
|
context->depth = DefaultDepth(dpy, screen_number);
|
|
context->cmap = DefaultColormap(dpy, screen_number);
|
|
context->drawable = RootWindow(dpy, screen_number);
|
|
context->black = BlackPixel(dpy, screen_number);
|
|
context->white = WhitePixel(dpy, screen_number);
|
|
context->vclass = context->visual->class;
|
|
}
|
|
}
|
|
|
|
gcv.function = GXcopy;
|
|
gcv.graphics_exposures = False;
|
|
context->copy_gc = XCreateGC(dpy, context->drawable, GCFunction | GCGraphicsExposures, &gcv);
|
|
|
|
if (context->vclass == PseudoColor || context->vclass == StaticColor) {
|
|
if (!setupPseudoColorColormap(context)) {
|
|
free(context);
|
|
return NULL;
|
|
}
|
|
} else if (context->vclass == GrayScale || context->vclass == StaticGray) {
|
|
context->colors = allocateGrayScale(context);
|
|
if (!context->colors) {
|
|
free(context);
|
|
return NULL;
|
|
}
|
|
} else if (context->vclass == TrueColor) {
|
|
/* calc offsets to create a TrueColor pixel */
|
|
context->red_offset = count_offset(context->visual->red_mask);
|
|
context->green_offset = count_offset(context->visual->green_mask);
|
|
context->blue_offset = count_offset(context->visual->blue_mask);
|
|
/* disable dithering on 24 bits visuals */
|
|
if (context->depth >= 24)
|
|
context->attribs->render_mode = RBestMatchRendering;
|
|
}
|
|
|
|
/* check avaiability of MIT-SHM */
|
|
#ifdef XSHM
|
|
if (!(context->attribs->flags & RC_UseSharedMemory)) {
|
|
context->attribs->flags |= RC_UseSharedMemory;
|
|
context->attribs->use_shared_memory = True;
|
|
}
|
|
|
|
if (context->attribs->use_shared_memory) {
|
|
int major, minor;
|
|
Bool sharedPixmaps;
|
|
|
|
context->flags.use_shared_pixmap = 0;
|
|
|
|
if (!XShmQueryVersion(context->dpy, &major, &minor, &sharedPixmaps)) {
|
|
context->attribs->use_shared_memory = False;
|
|
} else {
|
|
if (XShmPixmapFormat(context->dpy) == ZPixmap)
|
|
context->flags.use_shared_pixmap = sharedPixmaps;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
return context;
|
|
}
|
|
|
|
static Bool bestContext(Display * dpy, int screen_number, RContext * context)
|
|
{
|
|
XVisualInfo *vinfo = NULL, rvinfo;
|
|
int best = -1, numvis, i;
|
|
long flags;
|
|
XSetWindowAttributes attr;
|
|
|
|
rvinfo.class = TrueColor;
|
|
rvinfo.screen = screen_number;
|
|
flags = VisualClassMask | VisualScreenMask;
|
|
|
|
vinfo = XGetVisualInfo(dpy, flags, &rvinfo, &numvis);
|
|
if (vinfo) { /* look for a TrueColor, 24-bit or more (pref 24) */
|
|
for (i = numvis - 1, best = -1; i >= 0; i--) {
|
|
if (vinfo[i].depth == 24)
|
|
best = i;
|
|
else if (vinfo[i].depth > 24 && best < 0)
|
|
best = i;
|
|
}
|
|
}
|
|
#if 0
|
|
if (best == -1) { /* look for a DirectColor, 24-bit or more (pref 24) */
|
|
rvinfo.class = DirectColor;
|
|
if (vinfo)
|
|
XFree((char *)vinfo);
|
|
vinfo = XGetVisualInfo(dpy, flags, &rvinfo, &numvis);
|
|
if (vinfo) {
|
|
for (i = 0, best = -1; i < numvis; i++) {
|
|
if (vinfo[i].depth == 24)
|
|
best = i;
|
|
else if (vinfo[i].depth > 24 && best < 0)
|
|
best = i;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
if (best > -1) {
|
|
context->visual = vinfo[best].visual;
|
|
context->depth = vinfo[best].depth;
|
|
context->vclass = vinfo[best].class;
|
|
getColormap(context, screen_number);
|
|
attr.colormap = context->cmap;
|
|
attr.override_redirect = True;
|
|
attr.border_pixel = 0;
|
|
context->drawable =
|
|
XCreateWindow(dpy, RootWindow(dpy, screen_number),
|
|
1, 1, 1, 1, 0, context->depth,
|
|
CopyFromParent, context->visual,
|
|
CWBorderPixel | CWColormap | CWOverrideRedirect, &attr);
|
|
/* XSetWindowColormap(dpy, context->drawable, context->cmap); */
|
|
}
|
|
if (vinfo)
|
|
XFree((char *)vinfo);
|
|
|
|
if (best < 0)
|
|
return False;
|
|
else
|
|
return True;
|
|
}
|