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Diffstat (limited to 'nxcomp/src/Unpack.h')
| -rw-r--r-- | nxcomp/src/Unpack.h | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/nxcomp/src/Unpack.h b/nxcomp/src/Unpack.h new file mode 100644 index 000000000..faaa41d82 --- /dev/null +++ b/nxcomp/src/Unpack.h @@ -0,0 +1,149 @@ +/**************************************************************************/ +/* */ +/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */ +/* Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de> */ +/* Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de> */ +/* Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de> */ +/* Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/ +/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) */ +/* */ +/* NXCOMP, NX protocol compression and NX extensions to this software */ +/* are copyright of the aforementioned persons and companies. */ +/* */ +/* Redistribution and use of the present software is allowed according */ +/* to terms specified in the file LICENSE.nxcomp which comes in the */ +/* source distribution. */ +/* */ +/* All rights reserved. */ +/* */ +/* NOTE: This software has received contributions from various other */ +/* contributors, only the core maintainers and supporters are listed as */ +/* copyright holders. Please contact us, if you feel you should be listed */ +/* as copyright holder, as well. */ +/* */ +/**************************************************************************/ + +#ifndef Unpack_H +#define Unpack_H + +#include "NXpack.h" + +#include "Z.h" + +#define LSBFirst 0 +#define MSBFirst 1 + +#define SPLIT_PATTERN 0x88 + +typedef ColorMask T_colormask; + +// +// Pixel geometry of channel's display. +// + +typedef struct +{ + unsigned int depth1_bpp; + unsigned int depth4_bpp; + unsigned int depth8_bpp; + unsigned int depth16_bpp; + unsigned int depth24_bpp; + unsigned int depth32_bpp; + + unsigned int red_mask; + unsigned int green_mask; + unsigned int blue_mask; + + unsigned int image_byte_order; + unsigned int bitmap_bit_order; + unsigned int scanline_unit; + unsigned int scanline_pad; + +} T_geometry; + +// +// Colormap is used to remap colors +// from source to destination depth. +// + +typedef struct +{ + unsigned int entries; + unsigned int *data; + +} T_colormap; + +// +// Alpha channel data is added to 32 +// bits images at the time they are +// unpacked. +// + +typedef struct +{ + unsigned int entries; + unsigned char *data; + +} T_alpha; + +// +// The ZLIB stream structure used for +// the decompression. +// + +extern z_stream unpackStream; + +// +// Initialize the ZLIB stream used for +// decompression. +// + +void UnpackInit(); + +// +// Free the ZLIB stream. +// + +void UnpackDestroy(); + +// +// Get the destination bits per pixel +// based on the drawable depth. +// + +int UnpackBitsPerPixel(T_geometry *geometry, unsigned int depth); + +// +// Unpack the source data into the X +// bitmap. +// + +int Unpack8(T_geometry *geometry, const T_colormask *colormask, int src_depth, int src_width, + int src_height, unsigned char *src_data, int src_size, int dst_depth, + int dst_width, int dst_height, unsigned char *dst_data, int dst_size); + +int Unpack16(T_geometry *geometry, const T_colormask *colormask, int src_depth, int src_width, + int src_height, unsigned char *src_data, int src_size, int dst_depth, + int dst_width, int dst_height, unsigned char *dst_data, int dst_size); + +int Unpack24(T_geometry *geometry, const T_colormask *colormask, int src_depth, int src_width, + int src_height, unsigned char *src_data, int src_size, int dst_depth, + int dst_width, int dst_height, unsigned char *dst_data, int dst_size); + +int Unpack8(T_geometry *geometry, T_colormap *colormap, int src_depth, int src_width, + int src_height, unsigned char *src_data, int src_size, int dst_depth, + int dst_width, int dst_height, unsigned char *dst_data, int dst_size); + +int Unpack15(T_geometry *geometry, int src_depth, int src_width, + int src_height, unsigned char *src_data, int src_size, int dst_depth, + int dst_width, int dst_height, unsigned char *dst_data, int dst_size); + +int Unpack16(T_geometry *geometry, int src_depth, int src_width, + int src_height, unsigned char *src_data, int src_size, int dst_depth, + int dst_width, int dst_height, unsigned char *dst_data, int dst_size); + +int Unpack24(T_geometry *geometry, int src_depth, int src_width, + int src_height, unsigned char *src_data, int src_size, int dst_depth, + int dst_width, int dst_height, unsigned char *dst_data, int dst_size); + +#endif /* Unpack_H */ |