[qemu.git] / ui / vnc-enc-zywrle-template.c


/********************************************************************
 *                                                                  *
 * THIS FILE IS PART OF THE 'ZYWRLE' VNC CODEC SOURCE CODE.         *
 *                                                                  *
 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
 * GOVERNED BY A FOLLOWING BSD-STYLE SOURCE LICENSE.                *
 * PLEASE READ THESE TERMS BEFORE DISTRIBUTING.                     *
 *                                                                  *
 * THE 'ZYWRLE' VNC CODEC SOURCE CODE IS (C) COPYRIGHT 2006         *
 * BY Hitachi Systems & Services, Ltd.                              *
 * (Noriaki Yamazaki, Research & Development Center)               *
 *                                                                  *
 *                                                                  *
 ********************************************************************
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.

- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.

- Neither the name of the Hitachi Systems & Services, Ltd. nor
the names of its contributors may be used to endorse or promote
products derived from this software without specific prior written
permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION
OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ********************************************************************/

/* Change Log:
     V0.02 : 2008/02/04 : Fix mis encode/decode when width != scanline
	                     (Thanks Johannes Schindelin, author of LibVNC
						  Server/Client)
     V0.01 : 2007/02/06 : Initial release
*/

/*
[References]
 PLHarr:
   Senecal, J. G., P. Lindstrom, M. A. Duchaineau, and K. I. Joy,
   "An Improved N-Bit to N-Bit Reversible Haar-Like Transform,"
   Pacific Graphics 2004, October 2004, pp. 371-380.
 EZW:
   Shapiro, JM: Embedded Image Coding Using Zerotrees of Wavelet Coefficients,
   IEEE Trans. Signal. Process., Vol.41, pp.3445-3462 (1993).
*/


/* Template Macro stuffs. */
#undef ZYWRLE_ANALYZE
#undef ZYWRLE_SYNTHESIZE

#define ZYWRLE_SUFFIX     ZRLE_CONCAT2(ZRLE_BPP,ZRLE_ENDIAN_SUFFIX)

#define ZYWRLE_ANALYZE    ZRLE_CONCAT2(zywrle_analyze_,   ZYWRLE_SUFFIX)
#define ZYWRLE_SYNTHESIZE ZRLE_CONCAT2(zywrle_synthesize_,ZYWRLE_SUFFIX)

#define ZYWRLE_RGBYUV     ZRLE_CONCAT2(zywrle_rgbyuv_,    ZYWRLE_SUFFIX)
#define ZYWRLE_YUVRGB     ZRLE_CONCAT2(zywrle_yuvrgb_,    ZYWRLE_SUFFIX)
#define ZYWRLE_YMASK      ZRLE_CONCAT2(ZYWRLE_YMASK,      ZRLE_BPP)
#define ZYWRLE_UVMASK     ZRLE_CONCAT2(ZYWRLE_UVMASK,     ZRLE_BPP)
#define ZYWRLE_LOAD_PIXEL ZRLE_CONCAT2(ZYWRLE_LOAD_PIXEL, ZRLE_BPP)
#define ZYWRLE_SAVE_PIXEL ZRLE_CONCAT2(ZYWRLE_SAVE_PIXEL, ZRLE_BPP)

/* Packing/Unpacking pixel stuffs.
   Endian conversion stuffs. */
#undef S_0
#undef S_1
#undef L_0
#undef L_1
#undef L_2

#if ZYWRLE_ENDIAN == ENDIAN_BIG
#  define S_0	1
#  define S_1	0
#  define L_0	3
#  define L_1	2
#  define L_2	1
#else
#  define S_0	0
#  define S_1	1
#  define L_0	0
#  define L_1	1
#  define L_2	2
#endif

#define ZYWRLE_QUANTIZE
#include "qemu/osdep.h"
#include "vnc-enc-zywrle.h"

#ifndef ZRLE_COMPACT_PIXEL
static inline void ZYWRLE_RGBYUV(int *buf, ZRLE_PIXEL *data,
                                 int width, int height, int scanline)
{
    int r, g, b;
    int y, u, v;
    int *line;
    int *end;

    end = buf + height * width;
    while (buf < end) {
        line = buf + width;
        while (buf < line) {
            ZYWRLE_LOAD_PIXEL(data, r, g, b);
            ZYWRLE_RGBYUV_(r, g, b, y, u, v, ZYWRLE_YMASK, ZYWRLE_UVMASK);
            ZYWRLE_SAVE_COEFF(buf, v, y, u);
            buf++;
            data++;
        }
        data += scanline - width;
    }
}

static ZRLE_PIXEL *ZYWRLE_ANALYZE(ZRLE_PIXEL *dst, ZRLE_PIXEL *src,
                                  int w, int h, int scanline, int level,
                                  int *buf) {
    int l;
    int uw = w;
    int uh = h;
    int *top;
    int *end;
    int *line;
    ZRLE_PIXEL *p;
    int r, g, b;
    int s;
    int *ph;

    zywrle_calc_size(&w, &h, level);

    if (w == 0 || h == 0) {
        return NULL;
    }
    uw -= w;
    uh -= h;

    p = dst;
    ZYWRLE_LOAD_UNALIGN(src,*(ZRLE_PIXEL*)top = *p;);
    ZYWRLE_RGBYUV(buf, src, w, h, scanline);
    wavelet(buf, w, h, level);
    for (l = 0; l < level; l++) {
        ZYWRLE_PACK_COEFF(buf, dst, 3, w, h, scanline, l);
        ZYWRLE_PACK_COEFF(buf, dst, 2, w, h, scanline, l);
        ZYWRLE_PACK_COEFF(buf, dst, 1, w, h, scanline, l);
        if (l == level - 1) {
            ZYWRLE_PACK_COEFF(buf, dst, 0, w, h, scanline, l);
        }
    }
    ZYWRLE_SAVE_UNALIGN(dst,*dst = *(ZRLE_PIXEL*)top;);
    return dst;
}
#endif  /* ZRLE_COMPACT_PIXEL */

#undef ZYWRLE_RGBYUV
#undef ZYWRLE_YUVRGB
#undef ZYWRLE_LOAD_PIXEL
#undef ZYWRLE_SAVE_PIXEL
Commit	Line	Data
148954fa CC	1
	2	/********************************************************************
	3	* *
	4	* THIS FILE IS PART OF THE 'ZYWRLE' VNC CODEC SOURCE CODE. *
	5	* *
	6	* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
	7	* GOVERNED BY A FOLLOWING BSD-STYLE SOURCE LICENSE. *
	8	* PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
	9	* *
	10	* THE 'ZYWRLE' VNC CODEC SOURCE CODE IS (C) COPYRIGHT 2006 *
	11	* BY Hitachi Systems & Services, Ltd. *
e7d81004	12	* (Noriaki Yamazaki, Research & Development Center) *
148954fa CC	13	* *
	14	* *
	15	********************************************************************
	16	Redistribution and use in source and binary forms, with or without
	17	modification, are permitted provided that the following conditions
	18	are met:
	19
	20	- Redistributions of source code must retain the above copyright
	21	notice, this list of conditions and the following disclaimer.
	22
	23	- Redistributions in binary form must reproduce the above copyright
	24	notice, this list of conditions and the following disclaimer in the
	25	documentation and/or other materials provided with the distribution.
	26
	27	- Neither the name of the Hitachi Systems & Services, Ltd. nor
	28	the names of its contributors may be used to endorse or promote
	29	products derived from this software without specific prior written
	30	permission.
	31
	32	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	33	``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	34	LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	35	A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION
	36	OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	37	SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	38	LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	39	DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	40	THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	41	(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	42	OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	43	********************************************************************/
	44
	45	/* Change Log:
	46	V0.02 : 2008/02/04 : Fix mis encode/decode when width != scanline
	47	(Thanks Johannes Schindelin, author of LibVNC
	48	Server/Client)
	49	V0.01 : 2007/02/06 : Initial release
	50	*/
	51
	52	/*
	53	[References]
	54	PLHarr:
	55	Senecal, J. G., P. Lindstrom, M. A. Duchaineau, and K. I. Joy,
	56	"An Improved N-Bit to N-Bit Reversible Haar-Like Transform,"
	57	Pacific Graphics 2004, October 2004, pp. 371-380.
	58	EZW:
	59	Shapiro, JM: Embedded Image Coding Using Zerotrees of Wavelet Coefficients,
	60	IEEE Trans. Signal. Process., Vol.41, pp.3445-3462 (1993).
	61	*/
	62
	63
	64	/* Template Macro stuffs. */
	65	#undef ZYWRLE_ANALYZE
	66	#undef ZYWRLE_SYNTHESIZE
	67
	68	#define ZYWRLE_SUFFIX ZRLE_CONCAT2(ZRLE_BPP,ZRLE_ENDIAN_SUFFIX)
	69
	70	#define ZYWRLE_ANALYZE ZRLE_CONCAT2(zywrle_analyze_, ZYWRLE_SUFFIX)
	71	#define ZYWRLE_SYNTHESIZE ZRLE_CONCAT2(zywrle_synthesize_,ZYWRLE_SUFFIX)
	72
	73	#define ZYWRLE_RGBYUV ZRLE_CONCAT2(zywrle_rgbyuv_, ZYWRLE_SUFFIX)
	74	#define ZYWRLE_YUVRGB ZRLE_CONCAT2(zywrle_yuvrgb_, ZYWRLE_SUFFIX)
	75	#define ZYWRLE_YMASK ZRLE_CONCAT2(ZYWRLE_YMASK, ZRLE_BPP)
	76	#define ZYWRLE_UVMASK ZRLE_CONCAT2(ZYWRLE_UVMASK, ZRLE_BPP)
77	#define ZYWRLE_LOAD_PIXEL ZRLE_CONCAT2(ZYWRLE_LOAD_PIXEL, ZRLE_BPP)
78	#define ZYWRLE_SAVE_PIXEL ZRLE_CONCAT2(ZYWRLE_SAVE_PIXEL, ZRLE_BPP)
79
80	/* Packing/Unpacking pixel stuffs.
81	Endian conversion stuffs. */
82	#undef S_0
83	#undef S_1
84	#undef L_0
85	#undef L_1
86	#undef L_2
87
88	#if ZYWRLE_ENDIAN == ENDIAN_BIG
89	# define S_0 1
90	# define S_1 0
91	# define L_0 3
92	# define L_1 2
93	# define L_2 1
94	#else
95	# define S_0 0
96	# define S_1 1
97	# define L_0 0
98	# define L_1 1
99	# define L_2 2
100	#endif
101
102	#define ZYWRLE_QUANTIZE
e16f4c87	103	#include "qemu/osdep.h"
148954fa CC	104	#include "vnc-enc-zywrle.h"
	105
	106	#ifndef ZRLE_COMPACT_PIXEL
	107	static inline void ZYWRLE_RGBYUV(int buf, ZRLE_PIXEL data,
	108	int width, int height, int scanline)
	109	{
	110	int r, g, b;
	111	int y, u, v;
	112	int *line;
	113	int *end;
	114
	115	end = buf + height * width;
	116	while (buf < end) {
	117	line = buf + width;
	118	while (buf < line) {
	119	ZYWRLE_LOAD_PIXEL(data, r, g, b);
	120	ZYWRLE_RGBYUV_(r, g, b, y, u, v, ZYWRLE_YMASK, ZYWRLE_UVMASK);
	121	ZYWRLE_SAVE_COEFF(buf, v, y, u);
	122	buf++;
	123	data++;
	124	}
	125	data += scanline - width;
	126	}
	127	}
	128
	129	static ZRLE_PIXEL ZYWRLE_ANALYZE(ZRLE_PIXEL dst, ZRLE_PIXEL *src,
	130	int w, int h, int scanline, int level,
	131	int *buf) {
	132	int l;
	133	int uw = w;
	134	int uh = h;
	135	int *top;
	136	int *end;
	137	int *line;
	138	ZRLE_PIXEL *p;
	139	int r, g, b;
	140	int s;
	141	int *ph;
	142
	143	zywrle_calc_size(&w, &h, level);
	144
	145	if (w == 0 \|\| h == 0) {
	146	return NULL;
	147	}
	148	uw -= w;
	149	uh -= h;
	150
	151	p = dst;
	152	ZYWRLE_LOAD_UNALIGN(src,(ZRLE_PIXEL)top = *p;);
	153	ZYWRLE_RGBYUV(buf, src, w, h, scanline);
	154	wavelet(buf, w, h, level);
	155	for (l = 0; l < level; l++) {
	156	ZYWRLE_PACK_COEFF(buf, dst, 3, w, h, scanline, l);
	157	ZYWRLE_PACK_COEFF(buf, dst, 2, w, h, scanline, l);
	158	ZYWRLE_PACK_COEFF(buf, dst, 1, w, h, scanline, l);
	159	if (l == level - 1) {
	160	ZYWRLE_PACK_COEFF(buf, dst, 0, w, h, scanline, l);
	161	}
	162	}
	163	ZYWRLE_SAVE_UNALIGN(dst,dst = (ZRLE_PIXEL*)top;);
	164	return dst;
	165	}
	166	#endif /* ZRLE_COMPACT_PIXEL */
	167
168	#undef ZYWRLE_RGBYUV
169	#undef ZYWRLE_YUVRGB
170	#undef ZYWRLE_LOAD_PIXEL
171	#undef ZYWRLE_SAVE_PIXEL