Java example source code file (mlib_c_ImageThresh1_U8.c)
The mlib_c_ImageThresh1_U8.c Java example source code
/*
* Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* FUNCTION
* mlib_ImageThresh1 - thresholding
*
* SYNOPSIS
* mlib_status mlib_ImageThresh1(mlib_image *dst,
* const mlib_image *src,
* const mlib_s32 *thresh,
* const mlib_s32 *ghigh,
* const mlib_s32 *glow);
*
* ARGUMENT
* dst pointer to output image
* src pointer to input image
* thresh array of thresholds
* ghigh array of values above thresholds
* glow array of values below thresholds
*
* RESTRICTION
* The images must have the same size, and the same number
* of channels.
* The images can have 1, 2, 3, or 4 channels.
* The images can be in MLIB_BYTE, MLIB_SHORT or MLIB_INT data type.
* The type of the output image can be MLIB_BIT, or the same as the
* type of the input image.
*
* DESCRIPTION
* If the pixel band value is above the threshold for that channel,
* set the destination to the ghigh value for that channel.
* Otherwise, set the destination to the glow value for that channel.
*
* +- glow[c] src[x][y][c] <= thresh[c]
* dst[x][y][c] = |
* +- ghigh[c] src[x][y][c] > thresh[c]
*/
#include "mlib_image.h"
#include "mlib_ImageCheck.h"
#include "mlib_c_ImageThresh1.h"
/***************************************************************/
#define STYPE mlib_u8
#define TTYPE mlib_s32
#define T_SHIFT 31
/***************************************************************/
#define DO_THRESH(s0, th, gl, gh) \
(((gh) & (((th) - (TTYPE)(s0)) >> T_SHIFT)) | \
((gl) &~ (((th) - (TTYPE)(s0)) >> T_SHIFT)))
/***************************************************************/
#define THRESH1_CMP_SHIFT(s0, th, sh) \
((((th) - (s0)) >> T_SHIFT) & (1 << (sh)))
/***************************************************************/
#define STRIP(pd, ps, w, h, ch, th, gh, gl) { \
STYPE s0; \
for ( i = 0; i < h; i++ ) { \
for (j = 0; j < w; j ++) { \
for (k = 0; k < ch; k++) { \
s0 = ((STYPE*)ps)[i*src_stride + j*ch + k]; \
((STYPE*)pd)[i*dst_stride + j*ch + k] = \
(s0 <= th[k]) ? gl[k]: gh[k]; \
} \
} \
} \
}
/***************************************************************/
#define INIT_THRESH0(n) \
thresh0 = thresh[n]; \
ghigh0 = ghigh[n]; \
glow0 = glow[n]
/***************************************************************/
#define INIT_THRESH1(n) \
thresh1 = thresh[n]; \
ghigh1 = ghigh[n]; \
glow1 = glow[n]
/***************************************************************/
#define INIT_THRESH2(n) \
thresh2 = thresh[n]; \
ghigh2 = ghigh[n]; \
glow2 = glow[n]
/***************************************************************/
#define INIT_THRESH3(n) \
thresh3 = thresh[n]; \
ghigh3 = ghigh[n]; \
glow3 = glow[n]
/***************************************************************/
#define THRESH0(s0) DO_THRESH(s0, thresh0, glow0, ghigh0)
#define THRESH1(s0) DO_THRESH(s0, thresh1, glow1, ghigh1)
#define THRESH2(s0) DO_THRESH(s0, thresh2, glow2, ghigh2)
#define THRESH3(s0) DO_THRESH(s0, thresh3, glow3, ghigh3)
/***************************************************************/
void mlib_c_ImageThresh1_U81(PARAMS)
{
mlib_s32 *thresh = (void *)__thresh;
mlib_s32 *ghigh = (void *)__ghigh;
mlib_s32 *glow = (void *)__glow;
STYPE *psrc_row = psrc;
STYPE *pdst_row = pdst;
TTYPE thresh0;
TTYPE ghigh0;
TTYPE glow0;
mlib_s32 i, j, k;
if (width < 16) {
STRIP(pdst, psrc, width, height, 1, thresh, ghigh, glow);
return;
}
INIT_THRESH0(0);
for (i = 0; i < height; i++) {
#ifdef __SUNPRO_C
#pragma pipeloop(0)
#endif /* __SUNPRO_C */
for (j = 0; j <= (width - 8); j += 8) {
pdst_row[j] = THRESH0(psrc_row[j]);
pdst_row[j + 1] = THRESH0(psrc_row[j + 1]);
pdst_row[j + 2] = THRESH0(psrc_row[j + 2]);
pdst_row[j + 3] = THRESH0(psrc_row[j + 3]);
pdst_row[j + 4] = THRESH0(psrc_row[j + 4]);
pdst_row[j + 5] = THRESH0(psrc_row[j + 5]);
pdst_row[j + 6] = THRESH0(psrc_row[j + 6]);
pdst_row[j + 7] = THRESH0(psrc_row[j + 7]);
}
for (; j < width; j++) {
pdst_row[j] = THRESH0(psrc_row[j]);
}
psrc_row += src_stride;
pdst_row += dst_stride;
}
}
/***************************************************************/
void mlib_c_ImageThresh1_U82(PARAMS)
{
mlib_s32 *thresh = (void *)__thresh;
mlib_s32 *ghigh = (void *)__ghigh;
mlib_s32 *glow = (void *)__glow;
STYPE *psrc_row = psrc;
STYPE *pdst_row = pdst;
TTYPE thresh0, thresh1;
TTYPE ghigh0, ghigh1;
TTYPE glow0, glow1;
mlib_s32 i, j, k;
if (width < 16) {
STRIP(pdst, psrc, width, height, 2, thresh, ghigh, glow);
return;
}
INIT_THRESH0(0);
INIT_THRESH1(1);
width <<= 1;
for (i = 0; i < height; i++) {
#ifdef __SUNPRO_C
#pragma pipeloop(0)
#endif /* __SUNPRO_C */
for (j = 0; j <= (width - 8); j += 8) {
pdst_row[j] = THRESH0(psrc_row[j]);
pdst_row[j + 1] = THRESH1(psrc_row[j + 1]);
pdst_row[j + 2] = THRESH0(psrc_row[j + 2]);
pdst_row[j + 3] = THRESH1(psrc_row[j + 3]);
pdst_row[j + 4] = THRESH0(psrc_row[j + 4]);
pdst_row[j + 5] = THRESH1(psrc_row[j + 5]);
pdst_row[j + 6] = THRESH0(psrc_row[j + 6]);
pdst_row[j + 7] = THRESH1(psrc_row[j + 7]);
}
for (; j < width; j += 2) {
pdst_row[j] = THRESH0(psrc_row[j]);
pdst_row[j + 1] = THRESH1(psrc_row[j + 1]);
}
psrc_row += src_stride;
pdst_row += dst_stride;
}
}
/***************************************************************/
void mlib_c_ImageThresh1_U83(PARAMS)
{
mlib_s32 *thresh = (void *)__thresh;
mlib_s32 *ghigh = (void *)__ghigh;
mlib_s32 *glow = (void *)__glow;
STYPE *psrc_row = psrc;
STYPE *pdst_row = pdst;
TTYPE thresh0, thresh1, thresh2;
TTYPE ghigh0, ghigh1, ghigh2;
TTYPE glow0, glow1, glow2;
mlib_s32 i, j, k;
if (width < 16) {
STRIP(pdst, psrc, width, height, 3, thresh, ghigh, glow);
return;
}
width = 3 * width;
INIT_THRESH0(0);
INIT_THRESH1(1);
INIT_THRESH2(2);
for (i = 0; i < height; i++) {
#ifdef __SUNPRO_C
#pragma pipeloop(0)
#endif /* __SUNPRO_C */
for (j = 0; j <= (width - 12); j += 12) {
pdst_row[j] = THRESH0(psrc_row[j]);
pdst_row[j + 1] = THRESH1(psrc_row[j + 1]);
pdst_row[j + 2] = THRESH2(psrc_row[j + 2]);
pdst_row[j + 3] = THRESH0(psrc_row[j + 3]);
pdst_row[j + 4] = THRESH1(psrc_row[j + 4]);
pdst_row[j + 5] = THRESH2(psrc_row[j + 5]);
pdst_row[j + 6] = THRESH0(psrc_row[j + 6]);
pdst_row[j + 7] = THRESH1(psrc_row[j + 7]);
pdst_row[j + 8] = THRESH2(psrc_row[j + 8]);
pdst_row[j + 9] = THRESH0(psrc_row[j + 9]);
pdst_row[j + 10] = THRESH1(psrc_row[j + 10]);
pdst_row[j + 11] = THRESH2(psrc_row[j + 11]);
}
for (; j < width; j += 3) {
pdst_row[j] = THRESH0(psrc_row[j]);
pdst_row[j + 1] = THRESH1(psrc_row[j + 1]);
pdst_row[j + 2] = THRESH2(psrc_row[j + 2]);
}
psrc_row += src_stride;
pdst_row += dst_stride;
}
}
/***************************************************************/
void mlib_c_ImageThresh1_U84(PARAMS)
{
mlib_s32 *thresh = (void *)__thresh;
mlib_s32 *ghigh = (void *)__ghigh;
mlib_s32 *glow = (void *)__glow;
STYPE *psrc_row = psrc;
STYPE *pdst_row = pdst;
TTYPE thresh0, thresh1, thresh2, thresh3;
TTYPE ghigh0, ghigh1, ghigh2, ghigh3;
TTYPE glow0, glow1, glow2, glow3;
mlib_s32 i, j, k;
if (width < 16) {
STRIP(pdst, psrc, width, height, 4, thresh, ghigh, glow);
return;
}
INIT_THRESH0(0);
INIT_THRESH1(1);
INIT_THRESH2(2);
INIT_THRESH3(3);
width *= 4;
for (i = 0; i < height; i++) {
#ifdef __SUNPRO_C
#pragma pipeloop(0)
#endif /* __SUNPRO_C */
for (j = 0; j <= (width - 8); j += 8) {
pdst_row[j] = THRESH0(psrc_row[j]);
pdst_row[j + 1] = THRESH1(psrc_row[j + 1]);
pdst_row[j + 2] = THRESH2(psrc_row[j + 2]);
pdst_row[j + 3] = THRESH3(psrc_row[j + 3]);
pdst_row[j + 4] = THRESH0(psrc_row[j + 4]);
pdst_row[j + 5] = THRESH1(psrc_row[j + 5]);
pdst_row[j + 6] = THRESH2(psrc_row[j + 6]);
pdst_row[j + 7] = THRESH3(psrc_row[j + 7]);
}
if (j < width) {
pdst_row[j] = THRESH0(psrc_row[j]);
pdst_row[j + 1] = THRESH1(psrc_row[j + 1]);
pdst_row[j + 2] = THRESH2(psrc_row[j + 2]);
pdst_row[j + 3] = THRESH3(psrc_row[j + 3]);
}
psrc_row += src_stride;
pdst_row += dst_stride;
}
}
/***************************************************************/
void mlib_c_ImageThresh1_U81_1B(PARAMS,
mlib_s32 dbit_off)
{
mlib_s32 *thresh = (void *)__thresh;
mlib_s32 *ghigh = (void *)__ghigh;
mlib_s32 *glow = (void *)__glow;
STYPE *psrc_row = psrc;
mlib_u8 *pdst_row = pdst;
TTYPE thresh0 = thresh[0];
mlib_s32 mhigh, mlow, emask, dst0;
mlib_s32 i, j, jbit, l;
mhigh = (ghigh[0] > 0) ? 0xff : 0;
mlow = (glow[0] > 0) ? 0xff : 0;
for (i = 0; i < height; i++) {
j = 0;
jbit = 0;
if (dbit_off) {
mlib_s32 nume = 8 - dbit_off;
if (nume > width)
nume = width;
dst0 = 0;
emask = 0;
for (; j < nume; j++) {
emask |= (1 << (7 - (dbit_off + j)));
dst0 |= THRESH1_CMP_SHIFT(psrc_row[j], thresh0, 7 - (dbit_off + j));
}
dst0 = (mhigh & dst0) | (mlow & ~dst0);
pdst_row[0] = (dst0 & emask) | (pdst_row[0] & ~emask);
jbit++;
}
#ifdef __SUNPRO_C
#pragma pipeloop(0)
#endif /* __SUNPRO_C */
for (; j <= (width - 16); j += 16) {
dst0 = THRESH1_CMP_SHIFT(psrc_row[j], thresh0, 7) |
THRESH1_CMP_SHIFT(psrc_row[j + 1], thresh0, 6) |
THRESH1_CMP_SHIFT(psrc_row[j + 2], thresh0, 5) |
THRESH1_CMP_SHIFT(psrc_row[j + 3], thresh0, 4) |
THRESH1_CMP_SHIFT(psrc_row[j + 4], thresh0, 3) |
THRESH1_CMP_SHIFT(psrc_row[j + 5], thresh0, 2) |
THRESH1_CMP_SHIFT(psrc_row[j + 6], thresh0, 1) |
THRESH1_CMP_SHIFT(psrc_row[j + 7], thresh0, 0);
dst0 = (mhigh & dst0) | (mlow & ~dst0);
*(pdst_row + jbit) = (mlib_u8) dst0;
jbit++;
dst0 = THRESH1_CMP_SHIFT(psrc_row[j + 8], thresh0, 7) |
THRESH1_CMP_SHIFT(psrc_row[j + 9], thresh0, 6) |
THRESH1_CMP_SHIFT(psrc_row[j + 10], thresh0, 5) |
THRESH1_CMP_SHIFT(psrc_row[j + 11], thresh0, 4) |
THRESH1_CMP_SHIFT(psrc_row[j + 12], thresh0, 3) |
THRESH1_CMP_SHIFT(psrc_row[j + 13], thresh0, 2) |
THRESH1_CMP_SHIFT(psrc_row[j + 14], thresh0, 1) |
THRESH1_CMP_SHIFT(psrc_row[j + 15], thresh0, 0);
dst0 = (mhigh & dst0) | (mlow & ~dst0);
*(pdst_row + jbit) = (mlib_u8) dst0;
jbit++;
}
if (width - j >= 8) {
dst0 = THRESH1_CMP_SHIFT(psrc_row[j], thresh0, 7) |
THRESH1_CMP_SHIFT(psrc_row[j + 1], thresh0, 6) |
THRESH1_CMP_SHIFT(psrc_row[j + 2], thresh0, 5) |
THRESH1_CMP_SHIFT(psrc_row[j + 3], thresh0, 4) |
THRESH1_CMP_SHIFT(psrc_row[j + 4], thresh0, 3) |
THRESH1_CMP_SHIFT(psrc_row[j + 5], thresh0, 2) |
THRESH1_CMP_SHIFT(psrc_row[j + 6], thresh0, 1) |
THRESH1_CMP_SHIFT(psrc_row[j + 7], thresh0, 0);
dst0 = (mhigh & dst0) | (mlow & ~dst0);
*(pdst_row + jbit) = (mlib_u8) dst0;
jbit++;
j += 8;
}
if (j < width) {
dst0 = 0;
l = 7;
for (; j < width; j++) {
dst0 |= THRESH1_CMP_SHIFT(psrc_row[j], thresh0, l);
l--;
}
emask = (0xFF << (l + 1));
dst0 = (mhigh & dst0) | (mlow & ~dst0);
pdst_row[jbit] = (dst0 & emask) | (pdst_row[jbit] & ~emask);
}
psrc_row += src_stride;
pdst_row += dst_stride;
}
}
/***************************************************************/
void mlib_c_ImageThresh1_U82_1B(PARAMS,
mlib_s32 dbit_off)
{
mlib_s32 *thresh = (void *)__thresh;
mlib_s32 *ghigh = (void *)__ghigh;
mlib_s32 *glow = (void *)__glow;
STYPE *psrc_row = psrc;
mlib_u8 *pdst_row = pdst;
TTYPE thresh0 = thresh[0], thresh1 = thresh[1];
mlib_s32 mhigh0, mlow0, mhigh, mlow, emask, dst0;
mlib_s32 i, j, jbit, l;
mhigh0 = (ghigh[0] > 0) ? 0xaaa : 0;
mhigh0 |= (ghigh[1] > 0) ? 0x555 : 0;
mlow0 = (glow[0] > 0) ? 0xaaa : 0;
mlow0 |= (glow[1] > 0) ? 0x555 : 0;
width *= 2;
for (i = 0; i < height; i++) {
thresh0 = thresh[0];
thresh1 = thresh[1];
j = 0;
jbit = 0;
mhigh = mhigh0 >> (dbit_off & 1);
mlow = mlow0 >> (dbit_off & 1);
if (dbit_off) {
mlib_s32 nume = 8 - dbit_off;
if (nume > width)
nume = width;
dst0 = 0;
emask = 0;
for (; j <= (nume - 2); j += 2) {
emask |= (3 << (6 - (dbit_off + j)));
dst0 |= THRESH1_CMP_SHIFT(psrc_row[j], thresh0, 7 - (dbit_off + j));
dst0 |= THRESH1_CMP_SHIFT(psrc_row[j + 1], thresh1, 6 - (dbit_off + j));
}
if (j < nume) {
emask |= (1 << (7 - (dbit_off + j)));
dst0 |= THRESH1_CMP_SHIFT(psrc_row[j], thresh0, 7 - (dbit_off + j));
/* swap threshes */
thresh0 = thresh[1];
thresh1 = thresh[0];
j++;
}
dst0 = (mhigh & dst0) | (mlow & ~dst0);
pdst_row[0] = (dst0 & emask) | (pdst_row[0] & ~emask);
jbit++;
}
#ifdef __SUNPRO_C
#pragma pipeloop(0)
#endif /* __SUNPRO_C */
for (; j <= (width - 16); j += 16) {
dst0 = THRESH1_CMP_SHIFT(psrc_row[j], thresh0, 7) |
THRESH1_CMP_SHIFT(psrc_row[j + 1], thresh1, 6) |
THRESH1_CMP_SHIFT(psrc_row[j + 2], thresh0, 5) |
THRESH1_CMP_SHIFT(psrc_row[j + 3], thresh1, 4) |
THRESH1_CMP_SHIFT(psrc_row[j + 4], thresh0, 3) |
THRESH1_CMP_SHIFT(psrc_row[j + 5], thresh1, 2) |
THRESH1_CMP_SHIFT(psrc_row[j + 6], thresh0, 1) |
THRESH1_CMP_SHIFT(psrc_row[j + 7], thresh1, 0);
dst0 = (mhigh & dst0) | (mlow & ~dst0);
*(pdst_row + jbit) = (mlib_u8) dst0;
jbit++;
dst0 = THRESH1_CMP_SHIFT(psrc_row[j + 8], thresh0, 7) |
THRESH1_CMP_SHIFT(psrc_row[j + 9], thresh1, 6) |
THRESH1_CMP_SHIFT(psrc_row[j + 10], thresh0, 5) |
THRESH1_CMP_SHIFT(psrc_row[j + 11], thresh1, 4) |
THRESH1_CMP_SHIFT(psrc_row[j + 12], thresh0, 3) |
THRESH1_CMP_SHIFT(psrc_row[j + 13], thresh1, 2) |
THRESH1_CMP_SHIFT(psrc_row[j + 14], thresh0, 1) |
THRESH1_CMP_SHIFT(psrc_row[j + 15], thresh1, 0);
dst0 = (mhigh & dst0) | (mlow & ~dst0);
*(pdst_row + jbit) = (mlib_u8) dst0;
jbit++;
}
if (width - j >= 8) {
dst0 = THRESH1_CMP_SHIFT(psrc_row[j], thresh0, 7) |
THRESH1_CMP_SHIFT(psrc_row[j + 1], thresh1, 6) |
THRESH1_CMP_SHIFT(psrc_row[j + 2], thresh0, 5) |
THRESH1_CMP_SHIFT(psrc_row[j + 3], thresh1, 4) |
THRESH1_CMP_SHIFT(psrc_row[j + 4], thresh0, 3) |
THRESH1_CMP_SHIFT(psrc_row[j + 5], thresh1, 2) |
THRESH1_CMP_SHIFT(psrc_row[j + 6], thresh0, 1) |
THRESH1_CMP_SHIFT(psrc_row[j + 7], thresh1, 0);
dst0 = (mhigh & dst0) | (mlow & ~dst0);
*(pdst_row + jbit) = (mlib_u8) dst0;
jbit++;
j += 8;
}
if (j < width) {
dst0 = 0;
l = 7;
for (; j <= (width - 2); j += 2) {
dst0 |= THRESH1_CMP_SHIFT(psrc_row[j], thresh0, l);
dst0 |= THRESH1_CMP_SHIFT(psrc_row[j + 1], thresh1, l - 1);
l -= 2;
}
if (j < width) {
dst0 |= THRESH1_CMP_SHIFT(psrc_row[j], thresh0, l);
l--;
}
emask = (0xFF << (l + 1));
dst0 = (mhigh & dst0) | (mlow & ~dst0);
pdst_row[jbit] = (dst0 & emask) | (pdst_row[jbit] & ~emask);
}
psrc_row += src_stride;
pdst_row += dst_stride;
}
}
/***************************************************************/
void mlib_c_ImageThresh1_U83_1B(PARAMS,
mlib_s32 dbit_off)
{
mlib_s32 *thresh = (void *)__thresh;
mlib_s32 *ghigh = (void *)__ghigh;
mlib_s32 *glow = (void *)__glow;
STYPE *psrc_row = psrc;
mlib_u8 *pdst_row = pdst;
TTYPE thresh0, thresh1, thresh2, threshT;
mlib_s32 mhigh = 0, mlow = 0;
mlib_s32 mhigh0, mlow0, mhigh1, mlow1, mhigh2, mlow2, emask, dst0, dst1;
mlib_s32 i, j, jbit, k, l;
if (ghigh[0] > 0)
mhigh = 0x492492;
if (ghigh[1] > 0)
mhigh |= 0x249249;
if (ghigh[2] > 0)
mhigh |= 0x924924;
if (glow[0] > 0)
mlow = 0x492492;
if (glow[1] > 0)
mlow |= 0x249249;
if (glow[2] > 0)
mlow |= 0x924924;
width = 3 * width;
for (i = 0; i < height; i++) {
thresh0 = thresh[0];
thresh1 = thresh[1];
thresh2 = thresh[2];
j = 0;
jbit = 0;
mhigh0 = mhigh >> (dbit_off & 7);
mlow0 = mlow >> (dbit_off & 7);
mhigh1 = mhigh0 >> 1;
mlow1 = mlow0 >> 1;
mhigh2 = mhigh0 >> 2;
mlow2 = mlow0 >> 2;
if (dbit_off) {
mlib_s32 nume = 8 - dbit_off;
if (nume > width)
nume = width;
dst0 = 0;
emask = 0;
for (; j <= (nume - 3); j += 3) {
emask |= (7 << (5 - (dbit_off + j)));
dst0 |= THRESH1_CMP_SHIFT(psrc_row[j], thresh0, 7 - (dbit_off + j));
dst0 |= THRESH1_CMP_SHIFT(psrc_row[j + 1], thresh1, 6 - (dbit_off + j));
dst0 |= THRESH1_CMP_SHIFT(psrc_row[j + 2], thresh2, 5 - (dbit_off + j));
}
for (; j < nume; j++) {
emask |= (1 << (7 - (dbit_off + j)));
dst0 |= THRESH1_CMP_SHIFT(psrc_row[j], thresh0, 7 - (dbit_off + j));
/* swap threshes */
threshT = thresh0;
thresh0 = thresh1;
thresh1 = thresh2;
thresh2 = threshT;
}
dst0 = (mhigh0 & dst0) | (mlow0 & ~dst0);
pdst_row[0] = (dst0 & emask) | (pdst_row[0] & ~emask);
jbit++;
mhigh0 = mhigh >> (9 - nume);
mlow0 = mlow >> (9 - nume);
mhigh1 = mhigh0 >> 1;
mlow1 = mlow0 >> 1;
mhigh2 = mhigh0 >> 2;
mlow2 = mlow0 >> 2;
}
#ifdef __SUNPRO_C
#pragma pipeloop(0)
#endif /* __SUNPRO_C */
for (; j <= (width - 24); j += 24) {
dst0 = (THRESH1_CMP_SHIFT(psrc_row[j], thresh0, 7) |
THRESH1_CMP_SHIFT(psrc_row[j + 1], thresh1, 6) |
THRESH1_CMP_SHIFT(psrc_row[j + 2], thresh2, 5) |
THRESH1_CMP_SHIFT(psrc_row[j + 3], thresh0, 4) |
THRESH1_CMP_SHIFT(psrc_row[j + 4], thresh1, 3) |
THRESH1_CMP_SHIFT(psrc_row[j + 5], thresh2, 2) |
THRESH1_CMP_SHIFT(psrc_row[j + 6], thresh0, 1) |
THRESH1_CMP_SHIFT(psrc_row[j + 7], thresh1, 0));
dst0 = (mhigh0 & dst0) | (mlow0 & ~dst0);
*(pdst_row + jbit) = dst0;
jbit++;
dst0 = (THRESH1_CMP_SHIFT(psrc_row[j + 8], thresh2, 7) |
THRESH1_CMP_SHIFT(psrc_row[j + 9], thresh0, 6) |
THRESH1_CMP_SHIFT(psrc_row[j + 10], thresh1, 5) |
THRESH1_CMP_SHIFT(psrc_row[j + 11], thresh2, 4) |
THRESH1_CMP_SHIFT(psrc_row[j + 12], thresh0, 3) |
THRESH1_CMP_SHIFT(psrc_row[j + 13], thresh1, 2) |
THRESH1_CMP_SHIFT(psrc_row[j + 14], thresh2, 1) |
THRESH1_CMP_SHIFT(psrc_row[j + 15], thresh0, 0));
dst0 = (mhigh1 & dst0) | (mlow1 & ~dst0);
*(pdst_row + jbit) = dst0;
jbit++;
dst0 = (THRESH1_CMP_SHIFT(psrc_row[j + 16], thresh1, 7) |
THRESH1_CMP_SHIFT(psrc_row[j + 17], thresh2, 6) |
THRESH1_CMP_SHIFT(psrc_row[j + 18], thresh0, 5) |
THRESH1_CMP_SHIFT(psrc_row[j + 19], thresh1, 4) |
THRESH1_CMP_SHIFT(psrc_row[j + 20], thresh2, 3) |
THRESH1_CMP_SHIFT(psrc_row[j + 21], thresh0, 2) |
THRESH1_CMP_SHIFT(psrc_row[j + 22], thresh1, 1) |
THRESH1_CMP_SHIFT(psrc_row[j + 23], thresh2, 0));
dst0 = (mhigh2 & dst0) | (mlow2 & ~dst0);
*(pdst_row + jbit) = dst0;
jbit++;
}
if (j < width) {
k = width - j;
dst0 = 0;
l = 31;
for (; j < width; j += 3) {
dst0 |= (THRESH1_CMP_SHIFT(psrc_row[j], thresh0, l) |
THRESH1_CMP_SHIFT(psrc_row[j + 1], thresh1, l - 1) |
THRESH1_CMP_SHIFT(psrc_row[j + 2], thresh2, l - 2));
l -= 3;
}
l = (k + 7) >> 3;
k = (l << 3) - k;
emask = (0xFF << k);
if (l == 3) {
dst1 = dst0 >> 24;
dst1 = (mhigh0 & dst1) | (mlow0 & ~dst1);
pdst_row[jbit] = dst1;
dst1 = (dst0 >> 16);
dst1 = (mhigh1 & dst1) | (mlow1 & ~dst1);
pdst_row[jbit + 1] = dst1;
dst1 = (dst0 >> 8);
dst1 = (mhigh2 & dst1) | (mlow2 & ~dst1);
pdst_row[jbit + 2] = (dst1 & emask) | (pdst_row[jbit + 2] & ~emask);
}
else if (l == 2) {
dst1 = dst0 >> 24;
dst1 = (mhigh0 & dst1) | (mlow0 & ~dst1);
pdst_row[jbit] = dst1;
dst1 = (dst0 >> 16);
dst1 = (mhigh1 & dst1) | (mlow1 & ~dst1);
pdst_row[jbit + 1] = (dst1 & emask) | (pdst_row[jbit + 1] & ~emask);
}
else {
dst1 = dst0 >> 24;
dst1 = (mhigh0 & dst1) | (mlow0 & ~dst1);
pdst_row[jbit] = (dst1 & emask) | (pdst_row[jbit] & ~emask);
}
}
psrc_row += src_stride;
pdst_row += dst_stride;
}
}
/***************************************************************/
void mlib_c_ImageThresh1_U84_1B(PARAMS,
mlib_s32 dbit_off)
{
mlib_s32 *thresh = (void *)__thresh;
mlib_s32 *ghigh = (void *)__ghigh;
mlib_s32 *glow = (void *)__glow;
STYPE *psrc_row = psrc;
mlib_u8 *pdst_row = pdst;
TTYPE thresh0, thresh1, thresh2, thresh3, threshT;
mlib_s32 mhigh0, mlow0, mhigh, mlow, emask, dst0;
mlib_s32 i, j, jbit;
mhigh0 = (ghigh[0] > 0) ? 0x8888 : 0;
mhigh0 |= (ghigh[1] > 0) ? 0x4444 : 0;
mhigh0 |= (ghigh[2] > 0) ? 0x2222 : 0;
mhigh0 |= (ghigh[3] > 0) ? 0x1111 : 0;
mlow0 = (glow[0] > 0) ? 0x8888 : 0;
mlow0 |= (glow[1] > 0) ? 0x4444 : 0;
mlow0 |= (glow[2] > 0) ? 0x2222 : 0;
mlow0 |= (glow[3] > 0) ? 0x1111 : 0;
width *= 4;
for (i = 0; i < height; i++) {
thresh0 = thresh[0];
thresh1 = thresh[1];
thresh2 = thresh[2];
thresh3 = thresh[3];
j = 0;
jbit = 0;
mhigh = mhigh0 >> dbit_off;
mlow = mlow0 >> dbit_off;
if (dbit_off) {
mlib_s32 nume = 8 - dbit_off;
if (nume > width)
nume = width;
dst0 = 0;
emask = 0;
for (; j <= (nume - 4); j += 4) {
emask |= (0xf << (4 - (dbit_off + j)));
dst0 |= THRESH1_CMP_SHIFT(psrc_row[j], thresh0, 7 - (dbit_off + j));
dst0 |= THRESH1_CMP_SHIFT(psrc_row[j + 1], thresh1, 6 - (dbit_off + j));
dst0 |= THRESH1_CMP_SHIFT(psrc_row[j + 2], thresh2, 5 - (dbit_off + j));
dst0 |= THRESH1_CMP_SHIFT(psrc_row[j + 3], thresh3, 4 - (dbit_off + j));
}
for (; j < nume; j++) {
emask |= (1 << (7 - (dbit_off + j)));
dst0 |= THRESH1_CMP_SHIFT(psrc_row[j], thresh0, 7 - (dbit_off + j));
/* swap threshes */
threshT = thresh0;
thresh0 = thresh1;
thresh1 = thresh2;
thresh2 = thresh3;
thresh3 = threshT;
}
dst0 = (mhigh & dst0) | (mlow & ~dst0);
pdst_row[0] = (dst0 & emask) | (pdst_row[0] & ~emask);
jbit++;
}
#ifdef __SUNPRO_C
#pragma pipeloop(0)
#endif /* __SUNPRO_C */
for (; j <= (width - 16); j += 16) {
dst0 = (THRESH1_CMP_SHIFT(psrc_row[j], thresh0, 7) |
THRESH1_CMP_SHIFT(psrc_row[j + 1], thresh1, 6) |
THRESH1_CMP_SHIFT(psrc_row[j + 2], thresh2, 5) |
THRESH1_CMP_SHIFT(psrc_row[j + 3], thresh3, 4) |
THRESH1_CMP_SHIFT(psrc_row[j + 4], thresh0, 3) |
THRESH1_CMP_SHIFT(psrc_row[j + 5], thresh1, 2) |
THRESH1_CMP_SHIFT(psrc_row[j + 6], thresh2, 1) |
THRESH1_CMP_SHIFT(psrc_row[j + 7], thresh3, 0));
dst0 = (mhigh & dst0) | (mlow & ~dst0);
pdst_row[jbit] = dst0;
jbit++;
dst0 = (THRESH1_CMP_SHIFT(psrc_row[j + 8], thresh0, 7) |
THRESH1_CMP_SHIFT(psrc_row[j + 9], thresh1, 6) |
THRESH1_CMP_SHIFT(psrc_row[j + 10], thresh2, 5) |
THRESH1_CMP_SHIFT(psrc_row[j + 11], thresh3, 4) |
THRESH1_CMP_SHIFT(psrc_row[j + 12], thresh0, 3) |
THRESH1_CMP_SHIFT(psrc_row[j + 13], thresh1, 2) |
THRESH1_CMP_SHIFT(psrc_row[j + 14], thresh2, 1) |
THRESH1_CMP_SHIFT(psrc_row[j + 15], thresh3, 0));
dst0 = (mhigh & dst0) | (mlow & ~dst0);
pdst_row[jbit] = dst0;
jbit++;
}
if (j <= width - 8) {
dst0 = (THRESH1_CMP_SHIFT(psrc_row[j], thresh0, 7) |
THRESH1_CMP_SHIFT(psrc_row[j + 1], thresh1, 6) |
THRESH1_CMP_SHIFT(psrc_row[j + 2], thresh2, 5) |
THRESH1_CMP_SHIFT(psrc_row[j + 3], thresh3, 4) |
THRESH1_CMP_SHIFT(psrc_row[j + 4], thresh0, 3) |
THRESH1_CMP_SHIFT(psrc_row[j + 5], thresh1, 2) |
THRESH1_CMP_SHIFT(psrc_row[j + 6], thresh2, 1) |
THRESH1_CMP_SHIFT(psrc_row[j + 7], thresh3, 0));
dst0 = (mhigh & dst0) | (mlow & ~dst0);
pdst_row[jbit] = dst0;
jbit++;
j += 8;
}
if (j < width) {
dst0 = (THRESH1_CMP_SHIFT(psrc_row[j], thresh0, 7) |
THRESH1_CMP_SHIFT(psrc_row[j + 1], thresh1, 6) |
THRESH1_CMP_SHIFT(psrc_row[j + 2], thresh2, 5) |
THRESH1_CMP_SHIFT(psrc_row[j + 3], thresh3, 4) |
THRESH1_CMP_SHIFT(psrc_row[j + 4], thresh0, 3) |
THRESH1_CMP_SHIFT(psrc_row[j + 5], thresh1, 2) |
THRESH1_CMP_SHIFT(psrc_row[j + 6], thresh2, 1));
emask = (0xFF << (8 - (width - j)));
dst0 = (mhigh & dst0) | (mlow & ~dst0);
pdst_row[jbit] = (dst0 & emask) | (pdst_row[jbit] & ~emask);
}
psrc_row += src_stride;
pdst_row += dst_stride;
}
}
/***************************************************************/
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