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