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/*
* QEMU VNC display driver: palette hash table
*
* From libvncserver/libvncserver/tight.c
* Copyright (C) 2000, 2001 Const Kaplinsky. All Rights Reserved.
* Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
*
* Copyright (C) 2010 Corentin Chary <corentin.chary@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef VNC_PALETTE_H
#define VNC_PALETTE_H
#include "qapi/qmp/qlist.h"
#include "qemu/queue.h"
#define VNC_PALETTE_HASH_SIZE 256
#define VNC_PALETTE_MAX_SIZE 256
typedef struct VncPaletteEntry {
int idx;
uint32_t color;
QLIST_ENTRY(VncPaletteEntry) next;
} VncPaletteEntry;
typedef struct VncPalette {
VncPaletteEntry pool[VNC_PALETTE_MAX_SIZE];
size_t size;
size_t max;
int bpp;
QLIST_HEAD(,VncPaletteEntry) table[VNC_PALETTE_HASH_SIZE];
} VncPalette;
VncPalette *palette_new(size_t max, int bpp);
void palette_init(VncPalette *palette, size_t max, int bpp);
void palette_destroy(VncPalette *palette);
int palette_put(VncPalette *palette, uint32_t color);
int palette_idx(const VncPalette *palette, uint32_t color);
size_t palette_size(const VncPalette *palette);
void palette_iter(const VncPalette *palette,
void (*iter)(int idx, uint32_t color, void *opaque),
void *opaque);
uint32_t palette_color(const VncPalette *palette, int idx, bool *found);
size_t palette_fill(const VncPalette *palette,
uint32_t colors[VNC_PALETTE_MAX_SIZE]);
#endif /* VNC_PALETTE_H */
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