/* * 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 */