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/*
* Copyright (c) 1998, 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_ImageLookUp - table lookup
*
* SYNOPSIS
* mlib_status mlib_ImageLookUp(mlib_image *dst,
* const mlib_image *src,
* void **table)
*
* ARGUMENT
* dst Pointer to destination image.
* src Pointer to source image.
* table Lookup table.
*
* DESCRIPTION
* The mlib_ImageLookUp function performs general table lookup on an
* image. The destination image is obtained by passing a source image
* through a lookup table.
*
* The source image may be 1-, 2-, 3-, or 4-channeled of data types
* MLIB_BIT, MLIB_BYTE, MLIB_SHORT, or MLIB_INT. The lookup table may be
* 1-, 2-, 3-, or 4-channeled of data types MLIB_BYTE, MLIB_SHORT, MLIB_INT,
* MLIB_FLOAT, or MLIB_DOUBLE. The destination image must have the same
* number of channels as either source image or the lookup table,
* whichever is greater, and the same data type as the lookup table.
*
* It is the user's responsibility to make sure that the lookup table
* supplied is suitable for the source image. Specifically, the table
* entries cover the entire range of source data. Otherwise, the result
* of this function is undefined.
*
* The pixel values of the destination image are defined as the following:
*
* If the source image is single-channeled and the destination image is
* multi-channeled, then the lookup table has the same number of channels
* as the destination image:
*
* dst[x][y][c] = table[c][src[x][y][0]]
*
* If the source image is multi-channeled and the destination image is
* multi-channeled, with the same number of channels as the source image,
* then the lookup table will have the same number of channels as
* the source image:
*
* dst[x][y][c] = table[c][src[x][y][c]]
*/
#include "mlib_image.h"
#include "mlib_ImageCheck.h"
#include "mlib_ImageLookUp.h"
#include "mlib_v_ImageLookUpFunc.h"
/***************************************************************/
#define CALL_SIFUNC(STYPE, DTYPE, TYPE) \
switch (nchan) { \
case 2: \
mlib_v_ImageLookUpSI_##STYPE##_##DTYPE##_2(sa, slb, da, dlb, \
xsize, ysize, (const TYPE **) table); \
break; \
case 3: \
mlib_v_ImageLookUpSI_##STYPE##_##DTYPE##_3(sa, slb, da, dlb, \
xsize, ysize, (const TYPE **) table); \
break; \
case 4: \
mlib_v_ImageLookUpSI_##STYPE##_##DTYPE##_4(sa, slb, da, dlb, \
xsize, ysize, (const TYPE **) table); \
break; \
default: \
return MLIB_FAILURE; \
} \
return MLIB_SUCCESS
/***************************************************************/
#define CALL_FUNC(STYPE, DTYPE, TYPE) \
switch (nchan) { \
case 1: \
mlib_v_ImageLookUp_##STYPE##_##DTYPE##_1(sa, slb, da, dlb, \
xsize, ysize, (const TYPE **) table); \
break; \
case 2: \
mlib_v_ImageLookUp_##STYPE##_##DTYPE##_2(sa, slb, da, dlb, \
xsize, ysize, (const TYPE **) table); \
break; \
case 3: \
mlib_v_ImageLookUp_##STYPE##_##DTYPE##_3(sa, slb, da, dlb, \
xsize, ysize, (const TYPE **) table); \
break; \
case 4: \
mlib_v_ImageLookUp_##STYPE##_##DTYPE##_4(sa, slb, da, dlb, \
xsize, ysize, (const TYPE **) table); \
break; \
default: \
return MLIB_FAILURE; \
} \
return MLIB_SUCCESS
/***************************************************************/
mlib_status mlib_ImageLookUp(mlib_image *dst,
const mlib_image *src,
const void **table)
{
mlib_s32 slb, dlb, xsize, ysize, nchan, ichan, bitoff_src;
mlib_type stype, dtype;
void *sa, *da;
MLIB_IMAGE_CHECK(src);
MLIB_IMAGE_CHECK(dst);
MLIB_IMAGE_SIZE_EQUAL(src, dst);
MLIB_IMAGE_CHAN_SRC1_OR_EQ(src, dst);
stype = mlib_ImageGetType(src);
dtype = mlib_ImageGetType(dst);
ichan = mlib_ImageGetChannels(src);
nchan = mlib_ImageGetChannels(dst);
xsize = mlib_ImageGetWidth(src);
ysize = mlib_ImageGetHeight(src);
slb = mlib_ImageGetStride(src);
dlb = mlib_ImageGetStride(dst);
sa = mlib_ImageGetData(src);
da = mlib_ImageGetData(dst);
if (ichan == nchan) {
if (dtype == MLIB_BYTE) {
if (stype == MLIB_BYTE) {
CALL_FUNC(U8, U8, mlib_u8);
}
else if (stype == MLIB_SHORT) {
CALL_FUNC(S16, U8, mlib_u8);
}
else if (stype == MLIB_USHORT) {
CALL_FUNC(U16, U8, mlib_u8);
}
else if (stype == MLIB_INT) {
CALL_FUNC(S32, U8, mlib_u8);
}
else if (stype == MLIB_BIT) {
if (nchan != 1)
return MLIB_FAILURE;
bitoff_src = mlib_ImageGetBitOffset(src); /* bits to first byte */
return mlib_ImageLookUp_Bit_U8_1(sa, slb, da, dlb, xsize, ysize, nchan,
bitoff_src, (const mlib_u8 **) table);
}
}
else if (dtype == MLIB_SHORT) {
if (stype == MLIB_BYTE) {
CALL_FUNC(U8, S16, mlib_s16);
}
else if (stype == MLIB_SHORT) {
CALL_FUNC(S16, S16, mlib_s16);
}
else if (stype == MLIB_USHORT) {
CALL_FUNC(U16, S16, mlib_s16);
}
else if (stype == MLIB_INT) {
CALL_FUNC(S32, S16, mlib_s16);
}
}
else if (dtype == MLIB_USHORT) {
if (stype == MLIB_BYTE) {
CALL_FUNC(U8, U16, mlib_u16);
}
else if (stype == MLIB_SHORT) {
CALL_FUNC(S16, U16, mlib_u16);
}
else if (stype == MLIB_USHORT) {
CALL_FUNC(U16, U16, mlib_u16);
}
else if (stype == MLIB_INT) {
CALL_FUNC(S32, U16, mlib_u16);
}
}
else if (dtype == MLIB_INT) {
if (stype == MLIB_BYTE) {
CALL_FUNC(U8, S32, mlib_s32);
}
else if (stype == MLIB_SHORT) {
CALL_FUNC(S16, S32, mlib_s32);
}
else if (stype == MLIB_USHORT) {
CALL_FUNC(U16, S32, mlib_s32);
}
else if (stype == MLIB_INT) {
if ((nchan >= 1) && (nchan <= 4)) {
mlib_v_ImageLookUp_S32_S32(sa, slb, da, dlb, xsize, ysize, (const mlib_s32 **) table,
nchan);
return MLIB_SUCCESS;
}
else {
return MLIB_FAILURE;
}
}
}
else if (dtype == MLIB_FLOAT) {
if (stype == MLIB_BYTE) {
CALL_FUNC(U8, S32, mlib_s32);
}
else if (stype == MLIB_SHORT) {
CALL_FUNC(S16, S32, mlib_s32);
}
else if (stype == MLIB_USHORT) {
CALL_FUNC(U16, S32, mlib_s32);
}
else if (stype == MLIB_INT) {
if ((nchan >= 1) && (nchan <= 4)) {
mlib_v_ImageLookUp_S32_S32(sa, slb, da, dlb, xsize, ysize, (const mlib_s32 **) table,
nchan);
return MLIB_SUCCESS;
}
else {
return MLIB_FAILURE;
}
}
}
else if (dtype == MLIB_DOUBLE) {
if (stype == MLIB_BYTE) {
mlib_ImageLookUp_U8_D64(sa, slb, da, dlb / 8, xsize, ysize, nchan,
(const mlib_d64 **) table);
return MLIB_SUCCESS;
}
else if (stype == MLIB_SHORT) {
mlib_ImageLookUp_S16_D64(sa, slb / 2, da, dlb / 8, xsize, ysize, nchan,
(const mlib_d64 **) table);
return MLIB_SUCCESS;
}
else if (stype == MLIB_USHORT) {
mlib_ImageLookUp_U16_D64(sa, slb / 2, da, dlb / 8, xsize, ysize, nchan,
(const mlib_d64 **) table);
return MLIB_SUCCESS;
}
else if (stype == MLIB_INT) {
mlib_ImageLookUp_S32_D64(sa, slb / 4, da, dlb / 8, xsize, ysize, nchan,
(const mlib_d64 **) table);
return MLIB_SUCCESS;
}
}
}
else if (ichan == 1) {
if (dtype == MLIB_BYTE) {
if (stype == MLIB_BYTE) {
CALL_SIFUNC(U8, U8, mlib_u8);
}
else if (stype == MLIB_SHORT) {
CALL_SIFUNC(S16, U8, mlib_u8);
}
else if (stype == MLIB_USHORT) {
CALL_SIFUNC(U16, U8, mlib_u8);
}
else if (stype == MLIB_INT) {
CALL_SIFUNC(S32, U8, mlib_u8);
}
else if (stype == MLIB_BIT) {
bitoff_src = mlib_ImageGetBitOffset(src); /* bits to first byte */
if (nchan == 2) {
return mlib_ImageLookUp_Bit_U8_2(sa, slb, da, dlb, xsize, ysize, nchan,
bitoff_src, (const mlib_u8 **) table);
}
else if (nchan == 3) {
return mlib_ImageLookUp_Bit_U8_3(sa, slb, da, dlb, xsize, ysize, nchan,
bitoff_src, (const mlib_u8 **) table);
}
else { /* (nchan == 4) */
return mlib_ImageLookUp_Bit_U8_4(sa, slb, da, dlb, xsize, ysize, nchan,
bitoff_src, (const mlib_u8 **) table);
}
}
}
else if (dtype == MLIB_SHORT) {
if (stype == MLIB_BYTE) {
CALL_SIFUNC(U8, S16, mlib_s16);
}
else if (stype == MLIB_SHORT) {
CALL_SIFUNC(S16, S16, mlib_s16);
}
else if (stype == MLIB_USHORT) {
CALL_SIFUNC(U16, S16, mlib_s16);
}
else if (stype == MLIB_INT) {
CALL_SIFUNC(S32, S16, mlib_s16);
}
}
else if (dtype == MLIB_USHORT) {
if (stype == MLIB_BYTE) {
CALL_SIFUNC(U8, U16, mlib_u16);
}
else if (stype == MLIB_SHORT) {
CALL_SIFUNC(S16, U16, mlib_u16);
}
else if (stype == MLIB_USHORT) {
CALL_SIFUNC(U16, U16, mlib_u16);
}
else if (stype == MLIB_INT) {
CALL_SIFUNC(S32, U16, mlib_u16);
}
}
else if (dtype == MLIB_INT) {
if (stype == MLIB_BYTE) {
CALL_SIFUNC(U8, S32, mlib_s32);
}
else if (stype == MLIB_SHORT) {
CALL_SIFUNC(S16, S32, mlib_s32);
}
else if (stype == MLIB_USHORT) {
CALL_SIFUNC(U16, S32, mlib_s32);
}
else if (stype == MLIB_INT) {
if ((nchan >= 1) && (nchan <= 4)) {
mlib_v_ImageLookUpSI_S32_S32(sa, slb, da, dlb, xsize, ysize,
(const mlib_s32 **) table, nchan);
return MLIB_SUCCESS;
}
else {
return MLIB_FAILURE;
}
}
}
else if (dtype == MLIB_FLOAT) {
if (stype == MLIB_BYTE) {
CALL_SIFUNC(U8, S32, mlib_s32);
}
else if (stype == MLIB_SHORT) {
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