+++ /dev/null
-/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
-
- instance.c for the Openbox window manager
- Copyright (c) 2006 Mikael Magnusson
- Copyright (c) 2003-2007 Dana Jansens
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- See the COPYING file for a copy of the GNU General Public License.
-*/
-
-#include "render.h"
-#include "instance.h"
-
-static RrInstance *definst = NULL;
-
-static void RrTrueColorSetup (RrInstance *inst);
-static void RrPseudoColorSetup (RrInstance *inst);
-
-#ifdef DEBUG
-#include "color.h"
-#endif
-static void
-dest(gpointer data)
-{
-#ifdef DEBUG
- RrColor *c = data;
- if (c->refcount > 0)
- g_error("color %d (%d,%d,%d) in hash table with %d "
- "leftover references",
- c->id, RrColorRed(c), RrColorGreen(c), RrColorBlue(c),
- c->refcount);
-#endif
-}
-
-#if 0
-static void f(gpointer key, gpointer value, gpointer n)
-{
- RrColor *c = value;
- if (c->id == *(gint*)n)
- g_message("color %d has %d references", c->id, c->refcount);
-}
-
-void print_refs(gint id)
-{
- g_hash_table_foreach(RrColorHash(definst), f, &id);
-}
-#endif
-
-RrInstance* RrInstanceNew (Display *display, gint screen)
-{
- g_type_init(); /* supposedly needed for pango but seems to work without */
-
- definst = g_new (RrInstance, 1);
- definst->display = display;
- definst->screen = screen;
-
- definst->depth = DefaultDepth(display, screen);
- definst->visual = DefaultVisual(display, screen);
- definst->colormap = DefaultColormap(display, screen);
- definst->pango = pango_xft_get_context(display, screen);
-
- definst->pseudo_colors = NULL;
-
- definst->color_hash = g_hash_table_new_full(g_int_hash, g_int_equal,
- NULL, dest);
-
- switch (definst->visual->class) {
- case TrueColor:
- RrTrueColorSetup(definst);
- break;
- case PseudoColor:
- case StaticColor:
- case GrayScale:
- case StaticGray:
- RrPseudoColorSetup(definst);
- break;
- default:
- g_critical("Unsupported visual class");
- g_free (definst);
- return definst = NULL;
- }
- return definst;
-}
-
-static void RrTrueColorSetup (RrInstance *inst)
-{
- gulong red_mask, green_mask, blue_mask;
- XImage *timage = NULL;
-
- timage = XCreateImage(inst->display, inst->visual, inst->depth,
- ZPixmap, 0, NULL, 1, 1, 32, 0);
- g_assert(timage != NULL);
- /* find the offsets for each color in the visual's masks */
- inst->red_mask = red_mask = timage->red_mask;
- inst->green_mask = green_mask = timage->green_mask;
- inst->blue_mask = blue_mask = timage->blue_mask;
-
- inst->red_offset = 0;
- inst->green_offset = 0;
- inst->blue_offset = 0;
-
- while (! (red_mask & 1)) { inst->red_offset++; red_mask >>= 1; }
- while (! (green_mask & 1)) { inst->green_offset++; green_mask >>= 1; }
- while (! (blue_mask & 1)) { inst->blue_offset++; blue_mask >>= 1; }
-
- inst->red_shift = inst->green_shift = inst->blue_shift = 8;
- while (red_mask) { red_mask >>= 1; inst->red_shift--; }
- while (green_mask) { green_mask >>= 1; inst->green_shift--; }
- while (blue_mask) { blue_mask >>= 1; inst->blue_shift--; }
- XFree(timage);
-}
-
-#define RrPseudoNcolors(inst) (1 << (inst->pseudo_bpc * 3))
-
-static void RrPseudoColorSetup (RrInstance *inst)
-{
- XColor icolors[256];
- gint tr, tg, tb, n, r, g, b, i, incolors, ii;
- gulong dev;
- gint cpc, _ncolors;
-
- /* determine the number of colors and the bits-per-color */
- inst->pseudo_bpc = 2; /* XXX THIS SHOULD BE A USER OPTION */
- g_assert(inst->pseudo_bpc >= 1);
- _ncolors = RrPseudoNcolors(inst);
-
- if (_ncolors > 1 << inst->depth) {
- g_message("Invalid colormap size. Resizing.");
- inst->pseudo_bpc = 1 << (inst->depth/3) >> 3;
- _ncolors = 1 << (inst->pseudo_bpc * 3);
- }
-
- /* build a color cube */
- inst->pseudo_colors = g_new(XColor, _ncolors);
- cpc = 1 << inst->pseudo_bpc; /* colors per channel */
-
- for (n = 0, r = 0; r < cpc; r++)
- for (g = 0; g < cpc; g++)
- for (b = 0; b < cpc; b++, n++) {
- tr = (gint)(((gfloat)(r)/(gfloat)(cpc-1)) * 0xFF);
- tg = (gint)(((gfloat)(g)/(gfloat)(cpc-1)) * 0xFF);
- tb = (gint)(((gfloat)(b)/(gfloat)(cpc-1)) * 0xFF);
- inst->pseudo_colors[n].red = tr | tr << 8;
- inst->pseudo_colors[n].green = tg | tg << 8;
- inst->pseudo_colors[n].blue = tb | tb << 8;
- /* used to track allocation */
- inst->pseudo_colors[n].flags = DoRed|DoGreen|DoBlue;
- }
-
- /* allocate the colors */
- for (i = 0; i < _ncolors; i++)
- if (!XAllocColor(inst->display, inst->colormap,
- &inst->pseudo_colors[i]))
- inst->pseudo_colors[i].flags = 0; /* mark it as unallocated */
-
- /* try allocate any colors that failed allocation above */
-
- /* get the allocated values from the X server
- (only the first 256 XXX why!?)
- */
- incolors = (((1 << inst->depth) > 256) ? 256 : (1 << inst->depth));
- for (i = 0; i < incolors; i++)
- icolors[i].pixel = i;
- XQueryColors(inst->display, inst->colormap, icolors, incolors);
-
- /* try match unallocated ones */
- for (i = 0; i < _ncolors; i++) {
- if (!inst->pseudo_colors[i].flags) { /* if it wasn't allocated... */
- gulong closest = 0xffffffff, close = 0;
- for (ii = 0; ii < incolors; ii++) {
- /* find deviations */
- r = (inst->pseudo_colors[i].red - icolors[ii].red) & 0xff;
- g = (inst->pseudo_colors[i].green - icolors[ii].green) & 0xff;
- b = (inst->pseudo_colors[i].blue - icolors[ii].blue) & 0xff;
- /* find a weighted absolute deviation */
- dev = (r * r) + (g * g) + (b * b);
-
- if (dev < closest) {
- closest = dev;
- close = ii;
- }
- }
-
- inst->pseudo_colors[i].red = icolors[close].red;
- inst->pseudo_colors[i].green = icolors[close].green;
- inst->pseudo_colors[i].blue = icolors[close].blue;
- inst->pseudo_colors[i].pixel = icolors[close].pixel;
-
- /* try alloc this closest color, it had better succeed! */
- if (XAllocColor(inst->display, inst->colormap,
- &inst->pseudo_colors[i]))
- /* mark as alloced */
- inst->pseudo_colors[i].flags = DoRed|DoGreen|DoBlue;
- else
- /* wtf has gone wrong, its already alloced for chissake! */
- g_assert_not_reached();
- }
- }
-}
-
-void RrInstanceFree (RrInstance *inst)
-{
- if (inst) {
- if (inst == definst) definst = NULL;
- g_free(inst->pseudo_colors);
- g_hash_table_destroy(inst->color_hash);
- g_object_unref(inst->pango);
- g_free(inst);
- }
-}
-
-Display* RrDisplay (const RrInstance *inst)
-{
- return (inst ? inst : definst)->display;
-}
-
-gint RrScreen (const RrInstance *inst)
-{
- return (inst ? inst : definst)->screen;
-}
-
-Window RrRootWindow (const RrInstance *inst)
-{
- return RootWindow (RrDisplay (inst), RrScreen (inst));
-}
-
-Visual *RrVisual (const RrInstance *inst)
-{
- return (inst ? inst : definst)->visual;
-}
-
-gint RrDepth (const RrInstance *inst)
-{
- return (inst ? inst : definst)->depth;
-}
-
-Colormap RrColormap (const RrInstance *inst)
-{
- return (inst ? inst : definst)->colormap;
-}
-
-gint RrRedOffset (const RrInstance *inst)
-{
- return (inst ? inst : definst)->red_offset;
-}
-
-gint RrGreenOffset (const RrInstance *inst)
-{
- return (inst ? inst : definst)->green_offset;
-}
-
-gint RrBlueOffset (const RrInstance *inst)
-{
- return (inst ? inst : definst)->blue_offset;
-}
-
-gint RrRedShift (const RrInstance *inst)
-{
- return (inst ? inst : definst)->red_shift;
-}
-
-gint RrGreenShift (const RrInstance *inst)
-{
- return (inst ? inst : definst)->green_shift;
-}
-
-gint RrBlueShift (const RrInstance *inst)
-{
- return (inst ? inst : definst)->blue_shift;
-}
-
-gint RrRedMask (const RrInstance *inst)
-{
- return (inst ? inst : definst)->red_mask;
-}
-
-gint RrGreenMask (const RrInstance *inst)
-{
- return (inst ? inst : definst)->green_mask;
-}
-
-gint RrBlueMask (const RrInstance *inst)
-{
- return (inst ? inst : definst)->blue_mask;
-}
-
-guint RrPseudoBPC (const RrInstance *inst)
-{
- return (inst ? inst : definst)->pseudo_bpc;
-}
-
-XColor *RrPseudoColors (const RrInstance *inst)
-{
- return (inst ? inst : definst)->pseudo_colors;
-}
-
-GHashTable* RrColorHash (const RrInstance *inst)
-{
- return (inst ? inst : definst)->color_hash;
-}
projects / chaz / openbox / blobdiff