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Corentin Chary5136a052010-07-07 20:57:58 +02001/*
2 * QEMU VNC display driver: palette hash table
3 *
4 * From libvncserver/libvncserver/tight.c
5 * Copyright (C) 2000, 2001 Const Kaplinsky. All Rights Reserved.
6 * Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
7 *
8 * Copyright (C) 2010 Corentin Chary <corentin.chary@gmail.com>
9 *
10 * Permission is hereby granted, free of charge, to any person obtaining a copy
11 * of this software and associated documentation files (the "Software"), to deal
12 * in the Software without restriction, including without limitation the rights
13 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 * copies of the Software, and to permit persons to whom the Software is
15 * furnished to do so, subject to the following conditions:
16 *
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26 * THE SOFTWARE.
27 */
28
29#ifndef VNC_PALETTE_H
30#define VNC_PALETTE_H
31
Paolo Bonzini1de7afc2012-12-17 18:20:00 +010032#include "qemu/queue.h"
Corentin Chary5136a052010-07-07 20:57:58 +020033
34#define VNC_PALETTE_HASH_SIZE 256
Corentin Charye31e3692011-02-04 09:05:58 +010035#define VNC_PALETTE_MAX_SIZE 256
Corentin Chary5136a052010-07-07 20:57:58 +020036
37typedef struct VncPaletteEntry {
38 int idx;
39 uint32_t color;
40 QLIST_ENTRY(VncPaletteEntry) next;
41} VncPaletteEntry;
42
43typedef struct VncPalette {
Corentin Charye31e3692011-02-04 09:05:58 +010044 VncPaletteEntry pool[VNC_PALETTE_MAX_SIZE];
Corentin Chary5136a052010-07-07 20:57:58 +020045 size_t size;
46 size_t max;
47 int bpp;
48 QLIST_HEAD(,VncPaletteEntry) table[VNC_PALETTE_HASH_SIZE];
49} VncPalette;
50
51VncPalette *palette_new(size_t max, int bpp);
Corentin Chary72aefb72011-02-04 09:05:59 +010052void palette_init(VncPalette *palette, size_t max, int bpp);
Corentin Chary5136a052010-07-07 20:57:58 +020053void palette_destroy(VncPalette *palette);
54
55int palette_put(VncPalette *palette, uint32_t color);
56int palette_idx(const VncPalette *palette, uint32_t color);
57size_t palette_size(const VncPalette *palette);
58
59void palette_iter(const VncPalette *palette,
60 void (*iter)(int idx, uint32_t color, void *opaque),
61 void *opaque);
Corentin Charyf8562e32011-02-04 09:06:00 +010062uint32_t palette_color(const VncPalette *palette, int idx, bool *found);
63size_t palette_fill(const VncPalette *palette,
64 uint32_t colors[VNC_PALETTE_MAX_SIZE]);
Corentin Chary5136a052010-07-07 20:57:58 +020065
66#endif /* VNC_PALETTE_H */