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cmspack.c
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cmspack.c
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//---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2022 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// This module handles all formats supported by lcms. There are two flavors, 16 bits and
// floating point. Floating point is supported only in a subset, those formats holding
// cmsFloat32Number (4 bytes per component) and double (marked as 0 bytes per component
// as special case)
// ---------------------------------------------------------------------------
// This macro return words stored as big endian
#define CHANGE_ENDIAN(w) (cmsUInt16Number) ((cmsUInt16Number) ((w)<<8)|((w)>>8))
// These macros handles reversing (negative)
#define REVERSE_FLAVOR_8(x) ((cmsUInt8Number) (0xff-(x)))
#define REVERSE_FLAVOR_16(x) ((cmsUInt16Number)(0xffff-(x)))
// * 0xffff / 0xff00 = (255 * 257) / (255 * 256) = 257 / 256
cmsINLINE cmsUInt16Number FomLabV2ToLabV4(cmsUInt16Number x)
{
int a = (x << 8 | x) >> 8; // * 257 / 256
if ( a > 0xffff) return 0xffff;
return (cmsUInt16Number) a;
}
// * 0xf00 / 0xffff = * 256 / 257
cmsINLINE cmsUInt16Number FomLabV4ToLabV2(cmsUInt16Number x)
{
return (cmsUInt16Number) (((x << 8) + 0x80) / 257);
}
typedef struct {
cmsUInt32Number Type;
cmsUInt32Number Mask;
cmsFormatter16 Frm;
} cmsFormatters16;
typedef struct {
cmsUInt32Number Type;
cmsUInt32Number Mask;
cmsFormatterFloat Frm;
} cmsFormattersFloat;
#define ANYSPACE COLORSPACE_SH(31)
#define ANYCHANNELS CHANNELS_SH(15)
#define ANYEXTRA EXTRA_SH(7)
#define ANYPLANAR PLANAR_SH(1)
#define ANYENDIAN ENDIAN16_SH(1)
#define ANYSWAP DOSWAP_SH(1)
#define ANYSWAPFIRST SWAPFIRST_SH(1)
#define ANYFLAVOR FLAVOR_SH(1)
#define ANYPREMUL PREMUL_SH(1)
// Suppress waning about info never being used
#ifdef _MSC_VER
#pragma warning(disable : 4100)
#endif
// Unpacking routines (16 bits) ----------------------------------------------------------------------------------------
// Does almost everything but is slow
static
cmsUInt8Number* UnrollChunkyBytes(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
cmsUInt32Number nChan = T_CHANNELS(info -> InputFormat);
cmsUInt32Number DoSwap = T_DOSWAP(info ->InputFormat);
cmsUInt32Number Reverse = T_FLAVOR(info ->InputFormat);
cmsUInt32Number SwapFirst = T_SWAPFIRST(info -> InputFormat);
cmsUInt32Number Extra = T_EXTRA(info -> InputFormat);
cmsUInt32Number Premul = T_PREMUL(info->InputFormat);
cmsUInt32Number ExtraFirst = DoSwap ^ SwapFirst;
cmsUInt32Number v;
cmsUInt32Number i;
cmsUInt32Number alpha_factor = 1;
if (ExtraFirst) {
if (Premul && Extra)
alpha_factor = _cmsToFixedDomain(FROM_8_TO_16(accum[0]));
accum += Extra;
}
else
{
if (Premul && Extra)
alpha_factor = _cmsToFixedDomain(FROM_8_TO_16(accum[nChan]));
}
for (i=0; i < nChan; i++) {
cmsUInt32Number index = DoSwap ? (nChan - i - 1) : i;
v = FROM_8_TO_16(*accum);
v = Reverse ? REVERSE_FLAVOR_16(v) : v;
if (Premul && alpha_factor > 0)
{
v = ((cmsUInt32Number)((cmsUInt32Number)v << 16) / alpha_factor);
if (v > 0xffff) v = 0xffff;
}
wIn[index] = (cmsUInt16Number) v;
accum++;
}
if (!ExtraFirst) {
accum += Extra;
}
if (Extra == 0 && SwapFirst) {
cmsUInt16Number tmp = wIn[0];
memmove(&wIn[0], &wIn[1], (nChan-1) * sizeof(cmsUInt16Number));
wIn[nChan-1] = tmp;
}
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// Extra channels are just ignored because come in the next planes
static
cmsUInt8Number* UnrollPlanarBytes(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
cmsUInt32Number nChan = T_CHANNELS(info -> InputFormat);
cmsUInt32Number DoSwap = T_DOSWAP(info ->InputFormat);
cmsUInt32Number SwapFirst = T_SWAPFIRST(info ->InputFormat);
cmsUInt32Number Reverse = T_FLAVOR(info ->InputFormat);
cmsUInt32Number i;
cmsUInt32Number ExtraFirst = DoSwap ^ SwapFirst;
cmsUInt32Number Extra = T_EXTRA(info->InputFormat);
cmsUInt32Number Premul = T_PREMUL(info->InputFormat);
cmsUInt8Number* Init = accum;
cmsUInt32Number alpha_factor = 1;
if (ExtraFirst) {
if (Premul && Extra)
alpha_factor = _cmsToFixedDomain(FROM_8_TO_16(accum[0]));
accum += Extra * Stride;
}
else
{
if (Premul && Extra)
alpha_factor = _cmsToFixedDomain(FROM_8_TO_16(accum[(nChan) * Stride]));
}
for (i=0; i < nChan; i++) {
cmsUInt32Number index = DoSwap ? (nChan - i - 1) : i;
cmsUInt32Number v = FROM_8_TO_16(*accum);
v = Reverse ? REVERSE_FLAVOR_16(v) : v;
if (Premul && alpha_factor > 0)
{
v = ((cmsUInt32Number)((cmsUInt32Number)v << 16) / alpha_factor);
if (v > 0xffff) v = 0xffff;
}
wIn[index] = (cmsUInt16Number) v;
accum += Stride;
}
return (Init + 1);
}
// Special cases, provided for performance
static
cmsUInt8Number* Unroll4Bytes(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[0] = FROM_8_TO_16(*accum); accum++; // C
wIn[1] = FROM_8_TO_16(*accum); accum++; // M
wIn[2] = FROM_8_TO_16(*accum); accum++; // Y
wIn[3] = FROM_8_TO_16(*accum); accum++; // K
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll4BytesReverse(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[0] = FROM_8_TO_16(REVERSE_FLAVOR_8(*accum)); accum++; // C
wIn[1] = FROM_8_TO_16(REVERSE_FLAVOR_8(*accum)); accum++; // M
wIn[2] = FROM_8_TO_16(REVERSE_FLAVOR_8(*accum)); accum++; // Y
wIn[3] = FROM_8_TO_16(REVERSE_FLAVOR_8(*accum)); accum++; // K
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll4BytesSwapFirst(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[3] = FROM_8_TO_16(*accum); accum++; // K
wIn[0] = FROM_8_TO_16(*accum); accum++; // C
wIn[1] = FROM_8_TO_16(*accum); accum++; // M
wIn[2] = FROM_8_TO_16(*accum); accum++; // Y
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// KYMC
static
cmsUInt8Number* Unroll4BytesSwap(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[3] = FROM_8_TO_16(*accum); accum++; // K
wIn[2] = FROM_8_TO_16(*accum); accum++; // Y
wIn[1] = FROM_8_TO_16(*accum); accum++; // M
wIn[0] = FROM_8_TO_16(*accum); accum++; // C
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll4BytesSwapSwapFirst(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[2] = FROM_8_TO_16(*accum); accum++; // K
wIn[1] = FROM_8_TO_16(*accum); accum++; // Y
wIn[0] = FROM_8_TO_16(*accum); accum++; // M
wIn[3] = FROM_8_TO_16(*accum); accum++; // C
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll3Bytes(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[0] = FROM_8_TO_16(*accum); accum++; // R
wIn[1] = FROM_8_TO_16(*accum); accum++; // G
wIn[2] = FROM_8_TO_16(*accum); accum++; // B
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll3BytesSkip1Swap(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
accum++; // A
wIn[2] = FROM_8_TO_16(*accum); accum++; // B
wIn[1] = FROM_8_TO_16(*accum); accum++; // G
wIn[0] = FROM_8_TO_16(*accum); accum++; // R
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll3BytesSkip1SwapSwapFirst(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[2] = FROM_8_TO_16(*accum); accum++; // B
wIn[1] = FROM_8_TO_16(*accum); accum++; // G
wIn[0] = FROM_8_TO_16(*accum); accum++; // R
accum++; // A
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll3BytesSkip1SwapFirst(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
accum++; // A
wIn[0] = FROM_8_TO_16(*accum); accum++; // R
wIn[1] = FROM_8_TO_16(*accum); accum++; // G
wIn[2] = FROM_8_TO_16(*accum); accum++; // B
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// BRG
static
cmsUInt8Number* Unroll3BytesSwap(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[2] = FROM_8_TO_16(*accum); accum++; // B
wIn[1] = FROM_8_TO_16(*accum); accum++; // G
wIn[0] = FROM_8_TO_16(*accum); accum++; // R
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* UnrollLabV2_8(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[0] = FomLabV2ToLabV4(FROM_8_TO_16(*accum)); accum++; // L
wIn[1] = FomLabV2ToLabV4(FROM_8_TO_16(*accum)); accum++; // a
wIn[2] = FomLabV2ToLabV4(FROM_8_TO_16(*accum)); accum++; // b
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* UnrollALabV2_8(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
accum++; // A
wIn[0] = FomLabV2ToLabV4(FROM_8_TO_16(*accum)); accum++; // L
wIn[1] = FomLabV2ToLabV4(FROM_8_TO_16(*accum)); accum++; // a
wIn[2] = FomLabV2ToLabV4(FROM_8_TO_16(*accum)); accum++; // b
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* UnrollLabV2_16(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[0] = FomLabV2ToLabV4(*(cmsUInt16Number*) accum); accum += 2; // L
wIn[1] = FomLabV2ToLabV4(*(cmsUInt16Number*) accum); accum += 2; // a
wIn[2] = FomLabV2ToLabV4(*(cmsUInt16Number*) accum); accum += 2; // b
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// for duplex
static
cmsUInt8Number* Unroll2Bytes(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[0] = FROM_8_TO_16(*accum); accum++; // ch1
wIn[1] = FROM_8_TO_16(*accum); accum++; // ch2
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// Monochrome duplicates L into RGB for null-transforms
static
cmsUInt8Number* Unroll1Byte(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[0] = wIn[1] = wIn[2] = FROM_8_TO_16(*accum); accum++; // L
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll1ByteSkip1(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[0] = wIn[1] = wIn[2] = FROM_8_TO_16(*accum); accum++; // L
accum += 1;
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll1ByteSkip2(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[0] = wIn[1] = wIn[2] = FROM_8_TO_16(*accum); accum++; // L
accum += 2;
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll1ByteReversed(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[0] = wIn[1] = wIn[2] = REVERSE_FLAVOR_16(FROM_8_TO_16(*accum)); accum++; // L
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* UnrollAnyWords(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
cmsUInt32Number nChan = T_CHANNELS(info -> InputFormat);
cmsUInt32Number SwapEndian = T_ENDIAN16(info -> InputFormat);
cmsUInt32Number DoSwap = T_DOSWAP(info ->InputFormat);
cmsUInt32Number Reverse = T_FLAVOR(info ->InputFormat);
cmsUInt32Number SwapFirst = T_SWAPFIRST(info -> InputFormat);
cmsUInt32Number Extra = T_EXTRA(info -> InputFormat);
cmsUInt32Number ExtraFirst = DoSwap ^ SwapFirst;
cmsUInt32Number i;
if (ExtraFirst) {
accum += Extra * sizeof(cmsUInt16Number);
}
for (i=0; i < nChan; i++) {
cmsUInt32Number index = DoSwap ? (nChan - i - 1) : i;
cmsUInt16Number v = *(cmsUInt16Number*) accum;
if (SwapEndian)
v = CHANGE_ENDIAN(v);
wIn[index] = Reverse ? REVERSE_FLAVOR_16(v) : v;
accum += sizeof(cmsUInt16Number);
}
if (!ExtraFirst) {
accum += Extra * sizeof(cmsUInt16Number);
}
if (Extra == 0 && SwapFirst) {
cmsUInt16Number tmp = wIn[0];
memmove(&wIn[0], &wIn[1], (nChan-1) * sizeof(cmsUInt16Number));
wIn[nChan-1] = tmp;
}
return accum;
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* UnrollAnyWordsPremul(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
cmsUInt32Number nChan = T_CHANNELS(info -> InputFormat);
cmsUInt32Number SwapEndian = T_ENDIAN16(info -> InputFormat);
cmsUInt32Number DoSwap = T_DOSWAP(info ->InputFormat);
cmsUInt32Number Reverse = T_FLAVOR(info ->InputFormat);
cmsUInt32Number SwapFirst = T_SWAPFIRST(info -> InputFormat);
cmsUInt32Number ExtraFirst = DoSwap ^ SwapFirst;
cmsUInt32Number i;
cmsUInt16Number alpha = (ExtraFirst ? accum[0] : accum[nChan - 1]);
cmsUInt32Number alpha_factor = _cmsToFixedDomain(FROM_8_TO_16(alpha));
if (ExtraFirst) {
accum += sizeof(cmsUInt16Number);
}
for (i=0; i < nChan; i++) {
cmsUInt32Number index = DoSwap ? (nChan - i - 1) : i;
cmsUInt32Number v = *(cmsUInt16Number*) accum;
if (SwapEndian)
v = CHANGE_ENDIAN(v);
v = (v << 16) / alpha_factor;
if (v > 0xffff) v = 0xffff;
wIn[index] = (cmsUInt16Number) (Reverse ? REVERSE_FLAVOR_16(v) : v);
accum += sizeof(cmsUInt16Number);
}
if (!ExtraFirst) {
accum += sizeof(cmsUInt16Number);
}
return accum;
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* UnrollPlanarWords(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
cmsUInt32Number nChan = T_CHANNELS(info -> InputFormat);
cmsUInt32Number DoSwap= T_DOSWAP(info ->InputFormat);
cmsUInt32Number Reverse= T_FLAVOR(info ->InputFormat);
cmsUInt32Number SwapEndian = T_ENDIAN16(info -> InputFormat);
cmsUInt32Number i;
cmsUInt8Number* Init = accum;
if (DoSwap) {
accum += T_EXTRA(info -> InputFormat) * Stride;
}
for (i=0; i < nChan; i++) {
cmsUInt32Number index = DoSwap ? (nChan - i - 1) : i;
cmsUInt16Number v = *(cmsUInt16Number*) accum;
if (SwapEndian)
v = CHANGE_ENDIAN(v);
wIn[index] = Reverse ? REVERSE_FLAVOR_16(v) : v;
accum += Stride;
}
return (Init + sizeof(cmsUInt16Number));
}
static
cmsUInt8Number* UnrollPlanarWordsPremul(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
cmsUInt32Number nChan = T_CHANNELS(info -> InputFormat);
cmsUInt32Number DoSwap= T_DOSWAP(info ->InputFormat);
cmsUInt32Number SwapFirst = T_SWAPFIRST(info->InputFormat);
cmsUInt32Number Reverse= T_FLAVOR(info ->InputFormat);
cmsUInt32Number SwapEndian = T_ENDIAN16(info -> InputFormat);
cmsUInt32Number i;
cmsUInt32Number ExtraFirst = DoSwap ^ SwapFirst;
cmsUInt8Number* Init = accum;
cmsUInt16Number alpha = (ExtraFirst ? accum[0] : accum[(nChan - 1) * Stride]);
cmsUInt32Number alpha_factor = _cmsToFixedDomain(FROM_8_TO_16(alpha));
if (ExtraFirst) {
accum += Stride;
}
for (i=0; i < nChan; i++) {
cmsUInt32Number index = DoSwap ? (nChan - i - 1) : i;
cmsUInt32Number v = (cmsUInt32Number) *(cmsUInt16Number*) accum;
if (SwapEndian)
v = CHANGE_ENDIAN(v);
v = (v << 16) / alpha_factor;
if (v > 0xffff) v = 0xffff;
wIn[index] = (cmsUInt16Number) (Reverse ? REVERSE_FLAVOR_16(v) : v);
accum += Stride;
}
return (Init + sizeof(cmsUInt16Number));
}
static
cmsUInt8Number* Unroll4Words(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[0] = *(cmsUInt16Number*) accum; accum+= 2; // C
wIn[1] = *(cmsUInt16Number*) accum; accum+= 2; // M
wIn[2] = *(cmsUInt16Number*) accum; accum+= 2; // Y
wIn[3] = *(cmsUInt16Number*) accum; accum+= 2; // K
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll4WordsReverse(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[0] = REVERSE_FLAVOR_16(*(cmsUInt16Number*) accum); accum+= 2; // C
wIn[1] = REVERSE_FLAVOR_16(*(cmsUInt16Number*) accum); accum+= 2; // M
wIn[2] = REVERSE_FLAVOR_16(*(cmsUInt16Number*) accum); accum+= 2; // Y
wIn[3] = REVERSE_FLAVOR_16(*(cmsUInt16Number*) accum); accum+= 2; // K
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll4WordsSwapFirst(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[3] = *(cmsUInt16Number*) accum; accum+= 2; // K
wIn[0] = *(cmsUInt16Number*) accum; accum+= 2; // C
wIn[1] = *(cmsUInt16Number*) accum; accum+= 2; // M
wIn[2] = *(cmsUInt16Number*) accum; accum+= 2; // Y
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// KYMC
static
cmsUInt8Number* Unroll4WordsSwap(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[3] = *(cmsUInt16Number*) accum; accum+= 2; // K
wIn[2] = *(cmsUInt16Number*) accum; accum+= 2; // Y
wIn[1] = *(cmsUInt16Number*) accum; accum+= 2; // M
wIn[0] = *(cmsUInt16Number*) accum; accum+= 2; // C
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll4WordsSwapSwapFirst(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[2] = *(cmsUInt16Number*) accum; accum+= 2; // K
wIn[1] = *(cmsUInt16Number*) accum; accum+= 2; // Y
wIn[0] = *(cmsUInt16Number*) accum; accum+= 2; // M
wIn[3] = *(cmsUInt16Number*) accum; accum+= 2; // C
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll3Words(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[0] = *(cmsUInt16Number*) accum; accum+= 2; // C R
wIn[1] = *(cmsUInt16Number*) accum; accum+= 2; // M G
wIn[2] = *(cmsUInt16Number*) accum; accum+= 2; // Y B
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll3WordsSwap(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[2] = *(cmsUInt16Number*) accum; accum+= 2; // C R
wIn[1] = *(cmsUInt16Number*) accum; accum+= 2; // M G
wIn[0] = *(cmsUInt16Number*) accum; accum+= 2; // Y B
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll3WordsSkip1Swap(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
accum += 2; // A
wIn[2] = *(cmsUInt16Number*) accum; accum += 2; // R
wIn[1] = *(cmsUInt16Number*) accum; accum += 2; // G
wIn[0] = *(cmsUInt16Number*) accum; accum += 2; // B
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll3WordsSkip1SwapFirst(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
accum += 2; // A
wIn[0] = *(cmsUInt16Number*) accum; accum += 2; // R
wIn[1] = *(cmsUInt16Number*) accum; accum += 2; // G
wIn[2] = *(cmsUInt16Number*) accum; accum += 2; // B
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll1Word(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[0] = wIn[1] = wIn[2] = *(cmsUInt16Number*) accum; accum+= 2; // L
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll1WordReversed(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[0] = wIn[1] = wIn[2] = REVERSE_FLAVOR_16(*(cmsUInt16Number*) accum); accum+= 2;
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll1WordSkip3(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[0] = wIn[1] = wIn[2] = *(cmsUInt16Number*) accum;
accum += 8;
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll2Words(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
wIn[0] = *(cmsUInt16Number*) accum; accum += 2; // ch1
wIn[1] = *(cmsUInt16Number*) accum; accum += 2; // ch2
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// This is a conversion of Lab double to 16 bits
static
cmsUInt8Number* UnrollLabDoubleTo16(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
if (T_PLANAR(info -> InputFormat)) {
cmsCIELab Lab;
cmsUInt8Number* pos_L;
cmsUInt8Number* pos_a;
cmsUInt8Number* pos_b;
pos_L = accum;
pos_a = accum + Stride;
pos_b = accum + Stride * 2;
Lab.L = *(cmsFloat64Number*) pos_L;
Lab.a = *(cmsFloat64Number*) pos_a;
Lab.b = *(cmsFloat64Number*) pos_b;
cmsFloat2LabEncoded(wIn, &Lab);
return accum + sizeof(cmsFloat64Number);
}
else {
cmsFloat2LabEncoded(wIn, (cmsCIELab*) accum);
accum += sizeof(cmsCIELab) + T_EXTRA(info ->InputFormat) * sizeof(cmsFloat64Number);
return accum;
}
}
// This is a conversion of Lab float to 16 bits
static
cmsUInt8Number* UnrollLabFloatTo16(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
cmsCIELab Lab;
if (T_PLANAR(info -> InputFormat)) {
cmsUInt8Number* pos_L;
cmsUInt8Number* pos_a;
cmsUInt8Number* pos_b;
pos_L = accum;
pos_a = accum + Stride;
pos_b = accum + Stride * 2;
Lab.L = *(cmsFloat32Number*)pos_L;
Lab.a = *(cmsFloat32Number*)pos_a;
Lab.b = *(cmsFloat32Number*)pos_b;
cmsFloat2LabEncoded(wIn, &Lab);
return accum + sizeof(cmsFloat32Number);
}
else {
Lab.L = ((cmsFloat32Number*) accum)[0];
Lab.a = ((cmsFloat32Number*) accum)[1];
Lab.b = ((cmsFloat32Number*) accum)[2];
cmsFloat2LabEncoded(wIn, &Lab);
accum += (3 + T_EXTRA(info ->InputFormat)) * sizeof(cmsFloat32Number);
return accum;
}
}
// This is a conversion of XYZ double to 16 bits
static
cmsUInt8Number* UnrollXYZDoubleTo16(CMSREGISTER _cmsTRANSFORM* info,
CMSREGISTER cmsUInt16Number wIn[],
CMSREGISTER cmsUInt8Number* accum,
CMSREGISTER cmsUInt32Number Stride)
{
if (T_PLANAR(info -> InputFormat)) {
cmsCIEXYZ XYZ;
cmsUInt8Number* pos_X;
cmsUInt8Number* pos_Y;
cmsUInt8Number* pos_Z;
pos_X = accum;
pos_Y = accum + Stride;
pos_Z = accum + Stride * 2;
XYZ.X = *(cmsFloat64Number*)pos_X;
XYZ.Y = *(cmsFloat64Number*)pos_Y;
XYZ.Z = *(cmsFloat64Number*)pos_Z;
cmsFloat2XYZEncoded(wIn, &XYZ);
return accum + sizeof(cmsFloat64Number);
}
else {