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Diffstat (limited to 'libvncserver/zrlepalettehelper.h')
| -rw-r--r-- | libvncserver/zrlepalettehelper.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/libvncserver/zrlepalettehelper.h b/libvncserver/zrlepalettehelper.h new file mode 100644 index 0000000..e1213d1 --- /dev/null +++ b/libvncserver/zrlepalettehelper.h @@ -0,0 +1,46 @@ +/* + * Copyright (C) 2002 RealVNC Ltd. All Rights Reserved. + * Copyright (C) 2003 Sun Microsystems, Inc. + * + * This 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 software 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 software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + * USA. + */ + +/* + * The PaletteHelper class helps us build up the palette from pixel data by + * storing a reverse index using a simple hash-table + */ + +#ifndef __ZRLE_PALETTE_HELPER_H__ +#define __ZRLE_PALETTE_HELPER_H__ + +#include "zrletypes.h" + +#define ZRLE_PALETTE_MAX_SIZE 127 + +typedef struct { + zrle_U32 palette[ZRLE_PALETTE_MAX_SIZE]; + zrle_U8 index[ZRLE_PALETTE_MAX_SIZE + 4096]; + zrle_U32 key[ZRLE_PALETTE_MAX_SIZE + 4096]; + int size; +} zrlePaletteHelper; + +void zrlePaletteHelperInit (zrlePaletteHelper *helper); +void zrlePaletteHelperInsert(zrlePaletteHelper *helper, + zrle_U32 pix); +int zrlePaletteHelperLookup(zrlePaletteHelper *helper, + zrle_U32 pix); + +#endif /* __ZRLE_PALETTE_HELPER_H__ */ |