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-rw-r--r--dvi/mdvi-lib/color.c135
1 files changed, 0 insertions, 135 deletions
diff --git a/dvi/mdvi-lib/color.c b/dvi/mdvi-lib/color.c
deleted file mode 100644
index 366b0ea..0000000
--- a/dvi/mdvi-lib/color.c
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * Copyright (C) 2000, Matias Atria
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "mdvi.h"
-#include "color.h"
-
-void mdvi_set_color(DviContext *dvi, Ulong fg, Ulong bg)
-{
- if(dvi->curr_fg != fg || dvi->curr_bg != bg) {
- DEBUG((DBG_DEVICE, "setting color to (%lu,%lu)\n", fg, bg));
- if(dvi->device.set_color)
- dvi->device.set_color(dvi->device.device_data, fg, bg);
- dvi->curr_fg = fg;
- dvi->curr_bg = bg;
- }
-}
-
-void mdvi_push_color(DviContext *dvi, Ulong fg, Ulong bg)
-{
- if(dvi->color_top == dvi->color_size) {
- dvi->color_size += 32;
- dvi->color_stack = mdvi_realloc(dvi->color_stack,
- dvi->color_size * sizeof(DviColorPair));
- }
- dvi->color_stack[dvi->color_top].fg = dvi->curr_fg;
- dvi->color_stack[dvi->color_top].bg = dvi->curr_bg;
- dvi->color_top++;
- mdvi_set_color(dvi, fg, bg);
-}
-
-void mdvi_pop_color(DviContext *dvi)
-{
- Ulong fg, bg;
-
- if(dvi->color_top == 0)
- return;
- dvi->color_top--;
- fg = dvi->color_stack[dvi->color_top].fg;
- bg = dvi->color_stack[dvi->color_top].bg;
- mdvi_set_color(dvi, fg, bg);
-}
-
-void mdvi_reset_color(DviContext *dvi)
-{
- dvi->color_top = 0;
- mdvi_set_color(dvi, dvi->params.fg, dvi->params.bg);
-}
-
-/* cache for color tables, to avoid creating them for every glyph */
-typedef struct {
- Ulong fg;
- Ulong bg;
- Uint nlevels;
- Ulong *pixels;
- int density;
- double gamma;
- Uint hits;
-} ColorCache;
-
-#define CCSIZE 256
-static ColorCache color_cache[CCSIZE];
-static int cc_entries;
-
-#define GAMMA_DIFF 0.005
-
-
-/* create a color table */
-Ulong *get_color_table(DviDevice *dev,
- int nlevels, Ulong fg, Ulong bg, double gamma, int density)
-{
- ColorCache *cc, *tofree;
- int lohits;
- Ulong *pixels;
- int status;
-
- lohits = color_cache[0].hits;
- tofree = &color_cache[0];
- /* look in the cache and see if we have one that matches this request */
- for(cc = &color_cache[0]; cc < &color_cache[cc_entries]; cc++) {
- if(cc->hits < lohits) {
- lohits = cc->hits;
- tofree = cc;
- }
- if(cc->fg == fg && cc->bg == bg && cc->density == density &&
- cc->nlevels == nlevels && fabs(cc->gamma - gamma) <= GAMMA_DIFF)
- break;
- }
-
- if(cc < &color_cache[cc_entries]) {
- cc->hits++;
- return cc->pixels;
- }
-
- DEBUG((DBG_DEVICE, "Adding color table to cache (fg=%lu, bg=%lu, n=%d)\n",
- fg, bg, nlevels));
-
- /* no entry was found in the cache, create a new one */
- if(cc_entries < CCSIZE) {
- cc = &color_cache[cc_entries++];
- cc->pixels = NULL;
- } else {
- cc = tofree;
- mdvi_free(cc->pixels);
- }
- pixels = xnalloc(Ulong, nlevels);
- status = dev->alloc_colors(dev->device_data,
- pixels, nlevels, fg, bg, gamma, density);
- if(status < 0) {
- mdvi_free(pixels);
- return NULL;
- }
- cc->fg = fg;
- cc->bg = bg;
- cc->gamma = gamma;
- cc->density = density;
- cc->nlevels = nlevels;
- cc->pixels = pixels;
- cc->hits = 1;
- return pixels;
-}