rgb444torgb444.c
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: rgb444torgb444.c,v 1.2.8.1 2004/07/09 02:00:07 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file,
- * are subject to the current version of the RealNetworks Public
- * Source License (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (the "RCSL") available at
- * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
- * will apply. You may also obtain the license terms directly from
- * RealNetworks. You may not use this file except in compliance with
- * the RPSL or, if you have a valid RCSL with RealNetworks applicable
- * to this file, the RCSL. Please see the applicable RPSL or RCSL for
- * the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the
- * portions it created.
- *
- * This file, and the files included with this file, is distributed
- * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
- * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
- * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
- * ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #include "hlxclib/string.h"
- #include "nostatic/colorlib.h"
- #include "nostatic/rgb.h"
- #include "nostatic/rgbcommon.h"
- void
- RGB444toRGB444_ROW_SHRINK (unsigned char *dest_ptr,
- int dest_dx, unsigned char *src_ptr, int src_dx)
- {
- register unsigned char *d = dest_ptr;
- register unsigned char *s = src_ptr;
- register int count = dest_dx;
- register int limit = src_dx >> 1;
- register int step = dest_dx;
- if (count)
- {
- do
- {
- register unsigned int da_rgb;
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- da_rgb = sa_rgb;
- *(unsigned short *) (d) = da_rgb;
- d += 2;
- do
- {
- s += 2;
- } while ((limit -= step) >= 0);
- limit += src_dx;
- } while (--count);
- }
- }
- void
- RGB444toRGB444_ROW_COPY (unsigned char *dest_ptr, int dest_dx,
- unsigned char *src_ptr, int src_dx)
- {
- register unsigned char *d = dest_ptr;
- register unsigned char *s = src_ptr;
- register int count = dest_dx;
- while (((unsigned int) d & 3) && ((unsigned int) s & 3) && count)
- {
- register unsigned int da_rgb;
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- da_rgb = sa_rgb;
- s += 2;
- *(unsigned short *) (d) = da_rgb;
- d += 2;
- count--;
- }
- while (count >= 4)
- {
- register unsigned int da_rgb;
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- da_rgb = sa_rgb;
- *(unsigned short *) (d) = da_rgb;
- sa_rgb = *(unsigned short *) (s + 2);
- da_rgb = sa_rgb;
- *(unsigned short *) (d + 2) = da_rgb;
- sa_rgb = *(unsigned short *) (s + 4);
- da_rgb = sa_rgb;
- *(unsigned short *) (d + 2 * 2) = da_rgb;
- sa_rgb = *(unsigned short *) (s + 6);
- da_rgb = sa_rgb;
- *(unsigned short *) (d + 3 * 2) = da_rgb;
- s += 8;
- d += 4 * 2;
- count -= 4;
- }
- while (count)
- {
- register unsigned int da_rgb;
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- da_rgb = sa_rgb;
- s += 2;
- *(unsigned short *) (d) = da_rgb;
- d += 2;
- count--;
- }
- }
- void
- RGB444toRGB444_ROW_STRETCH (unsigned char *dest_ptr, int dest_dx,
- unsigned char *src_ptr, int src_dx)
- {
- register unsigned char *d = dest_ptr;
- register unsigned char *s = src_ptr;
- register int count = dest_dx;
- register int limit = dest_dx >> 1;
- register int step = src_dx;
- if (count)
- {
- goto start;
- do
- {
- register unsigned int da_rgb;
- if ((limit -= step) < 0)
- {
- limit += dest_dx;
- start:
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- da_rgb = sa_rgb;
- s += 2;
- }
- *(unsigned short *) (d) = da_rgb;
- d += 2;
- }
- while (--count);
- }
- }
- void
- RGB444toRGB444_ROW_STRETCH2X (unsigned char *dest_ptr, int dest_dx,
- unsigned char *src_ptr, int src_dx)
- {
- register unsigned char *d = dest_ptr;
- register unsigned char *s = src_ptr;
- register int count = src_dx;
- if (count)
- {
- register unsigned int da_rgb;
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- da_rgb = sa_rgb;
- s += 2;
- count--;
- *(unsigned short *) (d) = da_rgb;
- d += 2;
- while (count >= 2)
- {
- register unsigned int db_rgb;
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- db_rgb = sa_rgb;
- da_rgb =(((da_rgb ^ db_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & db_rgb);
- *(unsigned short *) (d) = da_rgb;
- *(unsigned short *) (d + 2) = db_rgb;
- sa_rgb = *(unsigned short *) (s + 2);
- da_rgb = sa_rgb;
- db_rgb =(((db_rgb ^ da_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (db_rgb & da_rgb);
- *(unsigned short *) (d + 2 * 2) = db_rgb;
- *(unsigned short *) (d + 3 * 2) = da_rgb;
- s += 4;
- d += 4 * 2;
- count -= 2;
- }
- if (count)
- {
- register unsigned int db_rgb;
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- db_rgb = sa_rgb;
- da_rgb =(((da_rgb ^ db_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & db_rgb);
- *(unsigned short *) (d) = da_rgb;
- *(unsigned short *) (d + 2) = db_rgb;
- *(unsigned short *) (d + 2 * 2) = db_rgb;
- }
- else
- {
- *(unsigned short *) (d) = da_rgb;
- }
- }
- }
- void
- RGB444toRGB444_ROW_STRETCH2XPLUS (unsigned char *dest_ptr, int dest_dx,
- unsigned char *src_ptr, int src_dx)
- {
- register unsigned char *d = dest_ptr;
- register unsigned char *s = src_ptr;
- register int count = dest_dx;
- register int limit = dest_dx >> 1;
- register int step = src_dx << 1;
- register int remainder = (2 * dest_dx - limit) / step;
- if (count)
- {
- register unsigned int da_rgb;
- register unsigned int db_rgb;
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- da_rgb = sa_rgb;
- s += 2;
- if (!(count -= remainder))
- goto end_of_row;
- while (1)
- {
- do
- {
- *(unsigned short *) (d) = da_rgb;
- d += 2;
- if (!(--count))
- goto end_of_row;
- }
- while ((limit -= step) >= 0);
- limit += dest_dx;
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- db_rgb = sa_rgb;
- da_rgb =(((da_rgb ^ db_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & db_rgb);
- do
- {
- *(unsigned short *) (d) = da_rgb;
- d += 2;
- if (!(--count))
- goto end_of_row;
- }
- while ((limit -= step) >= 0);
- limit += dest_dx;
- do
- {
- *(unsigned short *) (d) = db_rgb;
- d += 2;
- if (!(--count))
- goto end_of_row_2;
- }
- while ((limit -= step) >= 0);
- limit += dest_dx;
- sa_rgb = *(unsigned short *) (s + 2);
- da_rgb = sa_rgb;
- s += 4;
- db_rgb =(((db_rgb ^ da_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (db_rgb & da_rgb);
- do
- {
- *(unsigned short *) (d) = db_rgb;
- d += 2;
- if (!(--count))
- goto end_of_row_2;
- } while ((limit -= step) >= 0);
- limit += dest_dx;
- }
- end_of_row_2:
- da_rgb = db_rgb;
- end_of_row:
- while (remainder--)
- {
- *(unsigned short *) (d) = da_rgb;
- d += 2;
- }
- }
- }
- void
- RGB444toRGB444_ROW2X_SHRINK (unsigned char *dest_ptr_1,
- unsigned char *dest_ptr_12,
- unsigned char *dest_ptr_2, int dest_dx,
- unsigned char *src_ptr, int src_dx)
- {
- register unsigned char *d1 = dest_ptr_1;
- register unsigned char *d12 = dest_ptr_12;
- register unsigned char *d2 = dest_ptr_2;
- register unsigned char *s = src_ptr;
- register int count = dest_dx;
- register int limit = src_dx >> 1;
- register int step = dest_dx;
- if (count)
- {
- do
- {
- register unsigned int da_rgb;
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- da_rgb = sa_rgb;
- *(unsigned short *) (d2) = da_rgb;
- d2 += 2;
- register unsigned int sb_rgb;
- sb_rgb = *(unsigned short *) (d1);
- da_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U <<0)))) +(da_rgb & sb_rgb);
- d1 += 2;
- *(unsigned short *) (d12) = da_rgb;
- d12 += 2;
- do
- {
- s += 2;
- }
- while ((limit -= step) >= 0);
- limit += src_dx;
- }
- while (--count);
- }
- }
- void
- RGB444toRGB444_ROW2X_COPY (unsigned char *dest_ptr_1,
- unsigned char *dest_ptr_12,
- unsigned char *dest_ptr_2, int dest_dx,
- unsigned char *src_ptr, int src_dx)
- {
- register unsigned char *d1 = dest_ptr_1;
- register unsigned char *d12 = dest_ptr_12;
- register unsigned char *d2 = dest_ptr_2;
- register unsigned char *s = src_ptr;
- register int count = dest_dx;
- while (((unsigned int) d2 & 3) && ((unsigned int) s & 3) && count)
- {
- register unsigned int da_rgb;
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- da_rgb = sa_rgb;
- s += 2;
- *(unsigned short *) (d2) = da_rgb;
- d2 += 2;
- register unsigned int sb_rgb;
- sb_rgb = *(unsigned short *) (d1);
- da_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & sb_rgb);
- d1 += 2;
- *(unsigned short *) (d12) = da_rgb;
- d12 += 2;
- count--;
- }
- while (count >= 4)
- {
- register unsigned int da_rgb;
- register unsigned int sa_rgb;
- register unsigned int sb_rgb;
- sa_rgb = *(unsigned short *) (s);
- da_rgb = sa_rgb;
- *(unsigned short *) (d2) = da_rgb;
- sb_rgb = *(unsigned short *) (d1);
- da_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & sb_rgb);
- *(unsigned short *) (d12) = da_rgb;
- sa_rgb = *(unsigned short *) (s + 2);
- da_rgb = sa_rgb;
- *(unsigned short *) (d2 + 2) = da_rgb;
- sb_rgb = *(unsigned short *) (d1 + 2);
- da_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & sb_rgb);
- *(unsigned short *) (d12 + 2) = da_rgb;
- sa_rgb = *(unsigned short *) (s + 4);
- da_rgb = sa_rgb;
- *(unsigned short *) (d2 + 2 * 2) = da_rgb;
- sb_rgb = *(unsigned short *) (d1 + 2 * 2);
- da_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & sb_rgb);
- *(unsigned short *) (d12 + 2 * 2) = da_rgb;
- sa_rgb = *(unsigned short *) (s + 6);
- da_rgb = sa_rgb;
- *(unsigned short *) (d2 + 3 * 2) = da_rgb;
- sb_rgb = *(unsigned short *) (d1 + 3 * 2);
- da_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & sb_rgb);
- *(unsigned short *) (d12 + 3 * 2) = da_rgb;
- s += 8;
- d1 += 4 * 2;
- d2 += 4 * 2;
- d12 += 4 * 2;
- count -= 4;
- }
- while (count)
- {
- register unsigned int da_rgb;
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- da_rgb = sa_rgb;
- s += 2;
- *(unsigned short *) (d2) = da_rgb;
- d2 += 2;
- register unsigned int sb_rgb;
- sb_rgb = *(unsigned short *) (d1);
- da_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & sb_rgb);
- d1 += 2;
- *(unsigned short *) (d12) = da_rgb;
- d12 += 2;
- count--;
- }
- }
- void
- RGB444toRGB444_ROW2X_STRETCH (unsigned char *dest_ptr_1,
- unsigned char *dest_ptr_12,
- unsigned char *dest_ptr_2, int dest_dx,
- unsigned char *src_ptr, int src_dx)
- {
- register unsigned char *d1 = dest_ptr_1;
- register unsigned char *d12 = dest_ptr_12;
- register unsigned char *d2 = dest_ptr_2;
- register unsigned char *s = src_ptr;
- register int count = dest_dx;
- register int limit = dest_dx >> 1;
- register int step = src_dx;
- if (count)
- {
- goto start;
- do
- {
- register unsigned int da_rgb;
- register unsigned int dc_rgb;
- if ((limit -= step) < 0)
- {
- limit += dest_dx;
- start:if (5 == 0)
- {
- da_rgb = *(unsigned short *) (s);
- }
- else
- {
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- da_rgb = sa_rgb;
- }
- s += 2;
- register unsigned int sb_rgb;
- sb_rgb = *(unsigned short *) (d1);
- dc_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 +4 -1)) -(1U <<0))))+ (da_rgb & sb_rgb);
- }
- d1 += 2;
- *(unsigned short *) (d2) = da_rgb;
- d2 += 2;
- *(unsigned short *) (d12) = dc_rgb;
- d12 += 2;
- }
- while (--count);
- }
- }
- void
- RGB444toRGB444_ROW2X_STRETCH2X (unsigned char *dest_ptr_1,
- unsigned char *dest_ptr_12,
- unsigned char *dest_ptr_2, int dest_dx,
- unsigned char *src_ptr, int src_dx)
- {
- register unsigned char *d1 = dest_ptr_1;
- register unsigned char *d12 = dest_ptr_12;
- register unsigned char *d2 = dest_ptr_2;
- register unsigned char *s = src_ptr;
- register int count = src_dx;
- if (count)
- {
- register unsigned int da_rgb;
- register unsigned int dc_rgb;
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- da_rgb = sa_rgb;
- s += 2;
- register unsigned int sb_rgb;
- sb_rgb = *(unsigned short *) (d1);
- dc_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 - 1)) -(1U << 0)))) +(da_rgb & sb_rgb);
- d1 += 2 * 2;
- count--;
- *(unsigned short *) (d2) = da_rgb;
- d2 += 2;
- *(unsigned short *) (d12) = dc_rgb;
- d12 += 2;
- while (count >= 2)
- {
- register unsigned int db_rgb;
- register unsigned int dd_rgb;
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- db_rgb = sa_rgb;
- da_rgb =(((da_rgb ^ db_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & db_rgb);
- *(unsigned short *) (d2) = da_rgb;
- *(unsigned short *) (d2 + 2) = db_rgb;
- register unsigned int sb_rgb;
- sb_rgb = *(unsigned short *) (d1);
- dd_rgb =(((db_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U <<0)))) +(db_rgb & sb_rgb);
- dc_rgb =(((dc_rgb ^ dd_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (dc_rgb & dd_rgb);
- *(unsigned short *) (d12) = dc_rgb;
- *(unsigned short *) (d12 + 2) = dd_rgb;
- sa_rgb = *(unsigned short *) (s + 2);
- da_rgb = sa_rgb;
- db_rgb =(((db_rgb ^ da_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (db_rgb & da_rgb);
- *(unsigned short *) (d2 + 2 * 2) = db_rgb;
- *(unsigned short *) (d2 + 3 * 2) = da_rgb;
- sb_rgb = *(unsigned short *) (d1 + 2 * 2);
- dc_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U <<0)))) +(da_rgb & sb_rgb);
- dd_rgb =(((dd_rgb ^ dc_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (dd_rgb & dc_rgb);
- *(unsigned short *) (d12 + 2 * 2) = dd_rgb;
- *(unsigned short *) (d12 + 3 * 2) = dc_rgb;
- s += 4;
- d1 += 4 * 2;
- d2 += 4 * 2;
- d12 += 4 * 2;
- count -= 2;
- }
- if (count)
- {
- register unsigned int db_rgb;
- register unsigned int dd_rgb;
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- db_rgb = sa_rgb;
- da_rgb =(((da_rgb ^ db_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & db_rgb);
- *(unsigned short *) (d2) = da_rgb;
- *(unsigned short *) (d2 + 2) = db_rgb;
- *(unsigned short *) (d2 + 2 * 2) = db_rgb;
- register unsigned int sb_rgb;
- sb_rgb = *(unsigned short *) (d1);
- dd_rgb =(((db_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U <<0)))) +(db_rgb & sb_rgb);
- dc_rgb =(((dc_rgb ^ dd_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (dc_rgb & dd_rgb);
- *(unsigned short *) (d12) = dc_rgb;
- *(unsigned short *) (d12 + 2) = dd_rgb;
- *(unsigned short *) (d12 + 2 * 2) = dd_rgb;
- }
- else
- {
- *(unsigned short *) (d2) = da_rgb;
- *(unsigned short *) (d12) = dc_rgb;
- }
- }
- }
- void
- RGB444toRGB444_ROW2X_STRETCH2XPLUS (unsigned char *dest_ptr_1,
- unsigned char *dest_ptr_12,
- unsigned char *dest_ptr_2,
- int dest_dx,
- unsigned char *src_ptr, int src_dx)
- {
- register unsigned char *d1 = dest_ptr_1;
- register unsigned char *d12 = dest_ptr_12;
- register unsigned char *d2 = dest_ptr_2;
- register unsigned char *s = src_ptr;
- register int count = dest_dx;
- register int limit = dest_dx >> 1;
- register int step = src_dx << 1;
- register int remainder = (2 * dest_dx - limit) / step;
- if (count)
- {
- register unsigned int da_rgb;
- register unsigned int db_rgb;
- register unsigned int dc_rgb;
- register unsigned int dd_rgb;
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- da_rgb = sa_rgb;
- s += 2;
- if (!(count -= remainder))
- goto end_of_row;
- while (1)
- {
- register unsigned int sb_rgb;
- sb_rgb = *(unsigned short *) (d1);
- dc_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & sb_rgb);
- do
- {
- d1 += 2;
- *(unsigned short *) (d2) = da_rgb;
- d2 += 2;
- *(unsigned short *) (d12) = dc_rgb;
- d12 += 2;
- if (!(--count))
- goto end_of_row;
- }
- while ((limit -= step) >= 0);
- limit += dest_dx;
- register unsigned int sa_rgb;
- sa_rgb = *(unsigned short *) (s);
- db_rgb = sa_rgb;
- da_rgb =(((da_rgb ^ db_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & db_rgb);
- sb_rgb = *(unsigned short *) (d1);
- dc_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & sb_rgb);
- do
- {
- d1 += 2;
- *(unsigned short *) (d2) = da_rgb;
- d2 += 2;
- *(unsigned short *) (d12) = dc_rgb;
- d12 += 2;
- if (!(--count))
- goto end_of_row;
- }
- while ((limit -= step) >= 0);
- limit += dest_dx;
- sb_rgb = *(unsigned short *) (d1);
- dd_rgb =(((db_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (db_rgb & sb_rgb);
- do
- {
- d1 += 2;
- *(unsigned short *) (d2) = db_rgb;
- d2 += 2;
- *(unsigned short *) (d12) = dd_rgb;
- d12 += 2;
- if (!(--count))
- goto end_of_row_2;
- }
- while ((limit -= step) >= 0);
- limit += dest_dx;
- sa_rgb = *(unsigned short *) (s + 2);
- da_rgb = sa_rgb;
- s += 4;
- db_rgb =(((db_rgb ^ da_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (db_rgb & da_rgb);
- sb_rgb = *(unsigned short *) (d1);
- dd_rgb =(((db_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (db_rgb & sb_rgb);
- do
- {
- d1 += 2;
- *(unsigned short *) (d2) = db_rgb;
- d2 += 2;
- *(unsigned short *) (d12) = dd_rgb;
- d12 += 2;
- if (!(--count))
- goto end_of_row_2;
- }
- while ((limit -= step) >= 0);
- limit += dest_dx;
- }
- end_of_row_2:
- da_rgb = db_rgb;
- dc_rgb = dd_rgb;
- end_of_row:
- while (remainder--)
- {
- *(unsigned short *) (d2) = da_rgb;
- d2 += 2;
- *(unsigned short *) (d12) = dc_rgb;
- d12 += 2;
- }
- }
- }
- int
- RGBtoRGB4 (int dest_format, unsigned char *dest_ptr, int dest_width,
- int dest_height, int dest_pitch, int dest_x, int dest_y,
- int dest_dx, int dest_dy, int src_format, unsigned char *src_ptr,
- int src_width, int src_height, int src_pitch, int src_x, int src_y,
- int src_dx, int src_dy)
- {
-
- void (*ImageFuncs[5]) (unsigned char *dest_ptr, int dest_dx, int dest_dy,
- int dest_pitch, int dest_bpp, unsigned char *src_ptr,
- int src_dx, int src_dy, int src_pitch, int src_bpp,
- void (*row_func) (unsigned char *, int,
- unsigned char *, int),
- void (*row2x_func) (unsigned char *, unsigned char *,
- unsigned char *, int,
- unsigned char *, int)) =
- {
- IMAGE_SHRINK,
- IMAGE_COPY,
- IMAGE_STRETCH,
- IMAGE_STRETCH2X,
- IMAGE_STRETCH2XPLUS
- };
-
- void (*RowFuncs[5]) (unsigned char *dest_ptr, int dest_dx,
- unsigned char *src_ptr, int src_dx) =
- {
- RGB444toRGB444_ROW_SHRINK,
- RGB444toRGB444_ROW_COPY,
- RGB444toRGB444_ROW_STRETCH,
- RGB444toRGB444_ROW_STRETCH2X,
- RGB444toRGB444_ROW_STRETCH2XPLUS
- };
- void (*Row2xFuncs[5]) (unsigned char *dest_ptr_1, unsigned char *dest_ptr_12,
- unsigned char *dest_ptr_2, int dest_dx,
- unsigned char *src_ptr, int src_dx) =
- {
- RGB444toRGB444_ROW2X_SHRINK,
- RGB444toRGB444_ROW2X_COPY,
- RGB444toRGB444_ROW2X_STRETCH,
- RGB444toRGB444_ROW2X_STRETCH2X,
- RGB444toRGB444_ROW2X_STRETCH2XPLUS
- };
- void (*row_proc) (unsigned char *, int, unsigned char *, int);
- void (*row2x_proc) (unsigned char *, unsigned char *, unsigned char *, int,
- unsigned char *, int);
- void (*image_proc) (unsigned char *, int, int, int, int,
- unsigned char *, int, int, int, int,
- void (*)(unsigned char *, int, unsigned char *, int),
- void (*)(unsigned char *, unsigned char *,
- unsigned char *, int, unsigned char *, int));
- register int scale_x, scale_y;
- register int dest_bpp, src_bpp;
- register unsigned char *d, *s;
- if (((unsigned) dest_ptr & 3) || (dest_pitch & 1) ||
- ((unsigned) src_ptr & 3) || (src_pitch & 1) ||
- dest_width <= 0 || dest_height <= 0 ||
- src_width <= 0 || src_height <= 0 ||
- dest_x < 0 || dest_y < 0 || dest_dx <= 0 || dest_dy <= 0 ||
- src_x < 0 || src_y < 0 || src_dx <= 0 || src_dy <= 0 ||
- dest_width < dest_x + dest_dx || dest_height < dest_y + dest_dy ||
- src_width < src_x + src_dx || src_height < src_y + src_dy)
- {
- return -1;
- }
- scale_x = 1;
- if (dest_dx != src_dx)
- {
- if (dest_dx < src_dx)
- scale_x--;
- else
- {
- scale_x++;
- if (dest_dx >= 2 * src_dx)
- {
- scale_x++;
- if (dest_dx > 2 * src_dx)
- scale_x++;
- }
- }
- }
- scale_y = 1;
- if (dest_dy != src_dy)
- {
- if (dest_dy < src_dy)
- scale_y--;
- else
- {
- scale_y++;
- if (dest_dy >= 2 * src_dy)
- {
- scale_y++;
- if (dest_dy > 2 * src_dy)
- scale_y++;
- }
- }
- }
- row_proc = RowFuncs[scale_x];
- row2x_proc = Row2xFuncs[scale_x];
- image_proc = ImageFuncs[scale_y];
- if (!row_proc || !row2x_proc || !image_proc)
- {
- return -1;
- }
- dest_bpp = 2;
- src_bpp = 4;
- if (dest_pitch < 0)
- dest_ptr -= (dest_height - 1) * dest_pitch;
- if (src_pitch < 0)
- src_ptr -= (src_height - 1) * src_pitch;
- d = dest_ptr + dest_x * dest_bpp + dest_y * dest_pitch;
- s = src_ptr + src_x * src_bpp + src_y * src_pitch;
- (*image_proc) (d, dest_dx, dest_dy, dest_pitch, dest_bpp,
- s, src_dx, src_dy, src_pitch, src_bpp, row_proc, row2x_proc);
- return 0;
- }
- int
- RGB444toRGB444 (unsigned char *dest_ptr,
- int dest_width, int dest_height, int dest_pitch,
- int dest_x, int dest_y, int dest_dx, int dest_dy,
- unsigned char *src_ptr,
- int src_width, int src_height, int src_pitch,
- int src_x, int src_y, int src_dx, int src_dy,
- color_data_t * not_used)
- {
- const int dest_format = 18; /* RGB444 */
- const int src_format = 18; /* RGB444 */
- return RGBtoRGB4 (dest_format, dest_ptr, dest_width, dest_height, dest_pitch,
- dest_x, dest_y, dest_dx, dest_dy, src_format,
- src_ptr, src_width, src_height, src_pitch,
- src_x, src_y, src_dx, src_dy);
- }