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authorJörg Frings-Fürst <debian@jff-webhosting.net>2014-10-06 14:00:40 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2014-10-06 14:00:40 +0200
commit6e9c41a892ed0e0da326e0278b3221ce3f5713b8 (patch)
tree2e301d871bbeeb44aa57ff9cc070fcf3be484487 /backend/plustek-usbimg.c
Initial import of sane-backends version 1.0.24-1.2
Diffstat (limited to 'backend/plustek-usbimg.c')
-rw-r--r--backend/plustek-usbimg.c1984
1 files changed, 1984 insertions, 0 deletions
diff --git a/backend/plustek-usbimg.c b/backend/plustek-usbimg.c
new file mode 100644
index 0000000..41c0207
--- /dev/null
+++ b/backend/plustek-usbimg.c
@@ -0,0 +1,1984 @@
+/*.............................................................................
+ * Project : SANE library for Plustek flatbed scanners.
+ *.............................................................................
+ */
+
+/** @file plustek-usbimg.c
+ * @brief Image processing functions for copying and scaling image lines.
+ *
+ * Based on sources acquired from Plustek Inc.<br>
+ * Copyright (C) 2001-2007 Gerhard Jaeger <gerhard@gjaeger.de>
+ *
+ * History:
+ * - 0.40 - starting version of the USB support
+ * - 0.41 - fixed the 14bit problem for LM9831 devices
+ * - 0.42 - no changes
+ * - 0.43 - no changes
+ * - 0.44 - added CIS parts and dumpPic function
+ * - 0.45 - added gray scaling functions for CIS devices
+ * - fixed usb_GrayScale16 function
+ * - fixed a bug in usb_ColorScale16_2 function
+ * - fixed endless loop bug
+ * - fixed a bug in usb_GrayScalePseudo16 function
+ * - fixed a bug in usb_GrayDuplicatePseudo16 function
+ * - removed the scaler stuff for CIS devices
+ * - 0.46 - minor fixes
+ * - 0.47 - added big-endian/little endian stuff
+ * - 0.48 - fixed usb_ColorDuplicateGray16() and
+ * usb_ColorScaleGray16()
+ * - added usb_BWScaleFromColor() and usb_BWDuplicateFromColor()
+ * - cleanup
+ * - 0.49 - a_bRegs is now part of the device structure
+ * - 0.50 - cleanup
+ * - 0.51 - added usb_ColorDuplicateGray16_2(), usb_ColorScaleGray16_2()
+ * usb_BWScaleFromColor_2() and usb_BWDuplicateFromColor_2()
+ * - 0.52 - cleanup
+ * .
+ * <hr>
+ * This file is part of the SANE package.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ *
+ * As a special exception, the authors of SANE give permission for
+ * additional uses of the libraries contained in this release of SANE.
+ *
+ * The exception is that, if you link a SANE library with other files
+ * to produce an executable, this does not by itself cause the
+ * resulting executable to be covered by the GNU General Public
+ * License. Your use of that executable is in no way restricted on
+ * account of linking the SANE library code into it.
+ *
+ * This exception does not, however, invalidate any other reasons why
+ * the executable file might be covered by the GNU General Public
+ * License.
+ *
+ * If you submit changes to SANE to the maintainers to be included in
+ * a subsequent release, you agree by submitting the changes that
+ * those changes may be distributed with this exception intact.
+ *
+ * If you write modifications of your own for SANE, it is your choice
+ * whether to permit this exception to apply to your modifications.
+ * If you do not wish that, delete this exception notice.
+ * <hr>
+ */
+
+#define _SCALER 1000
+
+static u_char bShift, Shift;
+static u_short wSum, Mask;
+
+/*
+ */
+static u_char BitTable[8] = {
+ 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01
+};
+
+static u_char BitsReverseTable[256] = {
+ 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
+ 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
+ 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
+ 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
+ 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
+ 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
+ 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
+ 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
+ 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
+ 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
+ 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
+ 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
+ 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
+ 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
+ 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
+ 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
+ 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
+ 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
+ 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
+ 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
+ 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
+ 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
+ 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
+ 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
+ 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
+ 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
+ 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
+ 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
+ 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
+ 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
+ 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
+ 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
+};
+
+/************************ some helper functions ******************************/
+
+static void ReverseBits( int b, u_char **pTar, int *iByte, int *iWeightSum,
+ int iSrcWeight, int iTarWeight, int cMax )
+{
+ int bit;
+
+ cMax = (1 << cMax);
+ if(iSrcWeight == iTarWeight) {
+ for( bit = 1; bit < cMax; bit <<= 1) {
+ *iByte <<= 1;
+ if(b & bit)
+ *iByte |= 1;
+ if(*iByte >= 0x100) {
+ **pTar++ = (u_char)*iByte;
+ *iByte = 1;
+ }
+ }
+ } else {
+ for( bit = 1; bit < cMax; bit <<= 1 ) {
+
+ *iWeightSum += iTarWeight;
+ while(*iWeightSum >= iSrcWeight)
+ {
+ *iWeightSum -= iSrcWeight;
+ *iByte <<= 1;
+ if(b & bit)
+ *iByte |= 1;
+ if(*iByte >= 0x100)
+ {
+ **pTar++ = (u_char)*iByte;
+ *iByte = 1;
+ }
+ }
+ }
+ }
+}
+
+static void usb_ReverseBitStream( u_char *pSrc, u_char *pTar, int iPixels,
+ int iBufSize, int iSrcWeight/* = 0*/,
+ int iTarWeight/* = 0*/, int iPadBit/* = 1*/)
+{
+ int i;
+ int iByte = 1;
+ int cBytes = iPixels / 8;
+ int cBits = iPixels % 8;
+ u_char bPad = iPadBit? 0xff: 0;
+ u_char *pTarget = pTar;
+ int iWeightSum = 0;
+
+ if(iSrcWeight == iTarWeight) {
+ if(cBits)
+ {
+ int cShift = 8 - cBits;
+ for(i = cBytes, pSrc = pSrc + cBytes - 1; i > 0; i--, pSrc--, pTar++)
+ *pTar = BitsReverseTable[(u_char)((*pSrc << cBits) | (*(pSrc+1) >> cShift))];
+ ReverseBits(*(pSrc+1) >> cShift, &pTar, &iByte, &iWeightSum, iSrcWeight, iTarWeight, cBits);
+ }
+ else /* byte boundary */
+ {
+ for(i = cBytes, pSrc = pSrc + cBytes - 1; i > 0; i--, pSrc--, pTar++)
+ *pTar = BitsReverseTable[*pSrc];
+ }
+ }
+ else /* To shrink or enlarge */
+ {
+ if(cBits) {
+ int cShift = 8 - cBits;
+ for(i = cBytes, pSrc = pSrc + cBytes - 1; i > 0; i--, pSrc--)
+ ReverseBits((*pSrc << cBits) | (*(pSrc+1) >> cShift), &pTar, &iByte, &iWeightSum, iSrcWeight, iTarWeight, 8);
+ ReverseBits(*(pSrc+1) >> cShift, &pTar, &iByte, &iWeightSum, iSrcWeight, iTarWeight, cBits);
+ }
+ else /* byte boundary */
+ {
+ for(i = cBytes, pSrc = pSrc + cBytes - 1; i > 0; i--, pSrc--)
+ ReverseBits(*pSrc, &pTar, &iByte, &iWeightSum, iSrcWeight, iTarWeight, 8);
+ }
+ }
+
+ if(iByte != 1) {
+ while(iByte < 0x100)
+ {
+ iByte <<= 1;
+ iByte |= iPadBit;
+ }
+ *pTar++ = (u_char)iByte;
+ }
+
+ cBytes = (int)(pTar - pTarget);
+
+ for(i = iBufSize - cBytes; i > 0; i--, pTar++)
+ *pTar = bPad;
+}
+
+/**
+ */
+static void usb_AverageColorByte( Plustek_Device *dev )
+{
+ u_long dw;
+ ScanDef *scan = &dev->scanning;
+
+ if((scan->sParam.bSource == SOURCE_Negative ||
+ scan->sParam.bSource == SOURCE_Transparency) &&
+ scan->sParam.PhyDpi.x > 800) {
+
+ for (dw = 0; dw < (scan->sParam.Size.dwPhyPixels - 1); dw++)
+ {
+ scan->Red.pcb[dw].a_bColor[0] =
+ (u_char)(((u_short)scan->Red.pcb[dw].a_bColor[0] +
+ (u_short)scan->Red.pcb[dw + 1].a_bColor[0]) / 2);
+
+ scan->Green.pcb[dw].a_bColor[0] =
+ (u_char)(((u_short)scan->Green.pcb[dw].a_bColor[0] +
+ (u_short)scan->Green.pcb[dw + 1].a_bColor[0]) / 2);
+
+ scan->Blue.pcb[dw].a_bColor[0] =
+ (u_char)(((u_short)scan->Blue.pcb[dw].a_bColor[0] +
+ (u_short)scan->Blue.pcb[dw + 1].a_bColor[0]) / 2);
+ }
+ }
+}
+
+/**
+ */
+static void usb_AverageColorWord( Plustek_Device *dev )
+{
+ u_char ls = 2;
+ u_long dw;
+ ScanDef *scan = &dev->scanning;
+
+ if((scan->sParam.bSource == SOURCE_Negative ||
+ scan->sParam.bSource == SOURCE_Transparency) &&
+ scan->sParam.PhyDpi.x > 800) {
+
+ scan->Red.pcw[0].Colors[0] = _HILO2WORD(scan->Red.pcw[0].HiLo[0]) >> ls;
+ scan->Green.pcw[0].Colors[0] = _HILO2WORD(scan->Green.pcw[0].HiLo[0]) >> ls;
+ scan->Blue.pcw[0].Colors[0] = _HILO2WORD(scan->Blue.pcw[0].HiLo[0]) >> ls;
+
+ for (dw = 0; dw < (scan->sParam.Size.dwPhyPixels - 1); dw++)
+ {
+ scan->Red.pcw[dw + 1].Colors[0] = _HILO2WORD(scan->Red.pcw[dw + 1].HiLo[0]) >> ls;
+ scan->Green.pcw[dw + 1].Colors[0] = _HILO2WORD(scan->Green.pcw[dw + 1].HiLo[0]) >> ls;
+ scan->Blue.pcw[dw + 1].Colors[0] = _HILO2WORD(scan->Blue.pcw[dw + 1].HiLo[0]) >> ls;
+
+ scan->Red.pcw[dw].Colors[0] = (u_short)(((u_long)scan->Red.pcw[dw].Colors[0] +
+ (u_long)scan->Red.pcw[dw + 1].Colors[0]) / 2);
+ scan->Green.pcw[dw].Colors[0] = (u_short)(((u_long)scan->Green.pcw[dw].Colors[0] +
+ (u_long)scan->Green.pcw[dw + 1].Colors[0]) / 2);
+ scan->Blue.pcw[dw].Colors[0] = (u_short)(((u_long)scan->Blue.pcw[dw].Colors[0] +
+ (u_long)scan->Blue.pcw[dw + 1].Colors[0]) / 2);
+
+ scan->Red.pcw[dw].Colors[0] = _HILO2WORD(scan->Red.pcw[dw].HiLo[0]) << ls;
+ scan->Green.pcw[dw].Colors[0] = _HILO2WORD(scan->Green.pcw[dw].HiLo[0]) << ls;
+ scan->Blue.pcw[dw].Colors[0] = _HILO2WORD(scan->Blue.pcw[dw].HiLo[0]) << ls;
+ }
+
+ scan->Red.pcw[dw].Colors[0] = _HILO2WORD(scan->Red.pcw[dw].HiLo[0]) << ls;
+ scan->Green.pcw[dw].Colors[0] = _HILO2WORD(scan->Green.pcw[dw].HiLo[0]) << ls;
+ scan->Blue.pcw[dw].Colors[0] = _HILO2WORD(scan->Blue.pcw[dw].HiLo[0]) << ls;
+ }
+}
+
+/**
+ */
+static void usb_AverageGrayByte( Plustek_Device *dev )
+{
+ u_long dw;
+ ScanDef *scan = &dev->scanning;
+
+ if((scan->sParam.bSource == SOURCE_Negative ||
+ scan->sParam.bSource == SOURCE_Transparency) &&
+ scan->sParam.PhyDpi.x > 800)
+ {
+ for (dw = 0; dw < (scan->sParam.Size.dwPhyPixels - 1); dw++)
+ scan->Green.pb[dw] = (u_char)(((u_short)scan->Green.pb[dw]+
+ (u_short)scan->Green.pb[dw+1]) / 2);
+ }
+}
+
+/**
+ */
+static void usb_AverageGrayWord( Plustek_Device *dev )
+{
+ u_long dw;
+ ScanDef *scan = &dev->scanning;
+
+ if((scan->sParam.bSource == SOURCE_Negative ||
+ scan->sParam.bSource == SOURCE_Transparency) &&
+ scan->sParam.PhyDpi.x > 800)
+ {
+ scan->Green.pw[0] = _HILO2WORD(scan->Green.philo[0]) >> 2;
+
+ for (dw = 0; dw < (scan->sParam.Size.dwPhyPixels - 1); dw++)
+ {
+ scan->Green.pw[dw + 1] = _HILO2WORD(scan->Green.philo[dw+1]) >> 2;
+ scan->Green.pw[dw] = (u_short)(((u_long)scan->Green.pw[dw]+
+ (u_long)scan->Green.pw[dw+1]) / 2);
+ scan->Green.pw[dw] = _HILO2WORD(scan->Green.philo[dw]) << 2;
+ }
+
+ scan->Green.pw[dw] = _HILO2WORD(scan->Green.philo[dw]) << 2;
+ }
+}
+
+/**
+ * returns the zoom value, used for our scaling algorithm (DDA algo
+ * digital differential analyzer).
+ */
+static int usb_GetScaler( ScanDef *scan )
+{
+ double ratio;
+
+ ratio = (double)scan->sParam.UserDpi.x/
+ (double)scan->sParam.PhyDpi.x;
+
+ return (int)(1.0/ratio * _SCALER);
+}
+
+/******************************* the copy functions **************************/
+
+/** do a simple memcopy from scan-buffer to user buffer
+ */
+static void usb_ColorDuplicate8( Plustek_Device *dev )
+{
+ int next;
+ u_long dw, pixels;
+ ScanDef *scan = &dev->scanning;
+
+ usb_AverageColorByte( dev );
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+
+ for( dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next ) {
+
+ scan->UserBuf.pb_rgb[pixels].Red = scan->Red.pcb[dw].a_bColor[0];
+ scan->UserBuf.pb_rgb[pixels].Green = scan->Green.pcb[dw].a_bColor[0];
+ scan->UserBuf.pb_rgb[pixels].Blue = scan->Blue.pcb[dw].a_bColor[0];
+ }
+}
+
+/** reorder from rgb line to rgb pixel (CIS scanner)
+ */
+static void usb_ColorDuplicate8_2( Plustek_Device *dev )
+{
+ int next;
+ u_long dw, pixels;
+ ScanDef *scan = &dev->scanning;
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+
+ for( dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next ) {
+
+ scan->UserBuf.pb_rgb[pixels].Red = (u_char)scan->Red.pb[dw];
+ scan->UserBuf.pb_rgb[pixels].Green = (u_char)scan->Green.pb[dw];
+ scan->UserBuf.pb_rgb[pixels].Blue = (u_char)scan->Blue.pb[dw];
+ }
+}
+
+/**
+ */
+static void usb_ColorDuplicate16( Plustek_Device *dev )
+{
+ int next;
+ u_char ls;
+ u_long dw, pixels;
+ ScanDef *scan = &dev->scanning;
+ SANE_Bool swap = usb_HostSwap();
+
+ usb_AverageColorWord( dev );
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+
+ if( scan->dwFlag & SCANFLAG_RightAlign )
+ ls = Shift;
+ else
+ ls = 0;
+
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next) {
+
+ if( swap ) {
+ scan->UserBuf.pw_rgb[pixels].Red =
+ _HILO2WORD(scan->Red.pcw[dw].HiLo[0]) >> ls;
+ scan->UserBuf.pw_rgb[pixels].Green =
+ _HILO2WORD(scan->Green.pcw[dw].HiLo[0]) >> ls;
+ scan->UserBuf.pw_rgb[pixels].Blue =
+ _HILO2WORD(scan->Blue.pcw[dw].HiLo[0]) >> ls;
+ } else {
+ scan->UserBuf.pw_rgb[pixels].Red = scan->Red.pw[dw] >> ls;
+ scan->UserBuf.pw_rgb[pixels].Green= scan->Green.pw[dw] >> ls;
+ scan->UserBuf.pw_rgb[pixels].Blue = scan->Blue.pw[dw] >> ls;
+ }
+ }
+}
+
+/**
+ */
+static void usb_ColorDuplicate16_2( Plustek_Device *dev )
+{
+ int next;
+ u_char ls;
+ HiLoDef tmp;
+ u_long dw, pixels;
+ ScanDef *scan = &dev->scanning;
+ SANE_Bool swap = usb_HostSwap();
+
+ usb_AverageColorWord( dev );
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+
+ if( scan->dwFlag & SCANFLAG_RightAlign )
+ ls = Shift;
+ else
+ ls = 0;
+
+ for( dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next) {
+
+ if( swap ) {
+ tmp = *((HiLoDef*)&scan->Red.pw[dw]);
+ scan->UserBuf.pw_rgb[pixels].Red = _HILO2WORD(tmp) >> ls;
+
+ tmp = *((HiLoDef*)&scan->Green.pw[dw]);
+ scan->UserBuf.pw_rgb[pixels].Green = _HILO2WORD(tmp) >> ls;
+
+ tmp = *((HiLoDef*)&scan->Blue.pw[dw]);
+ scan->UserBuf.pw_rgb[pixels].Blue = _HILO2WORD(tmp) >> ls;
+
+ } else {
+
+ scan->UserBuf.pw_rgb[pixels].Red = scan->Red.pw[dw] >> ls;
+ scan->UserBuf.pw_rgb[pixels].Green = scan->Green.pw[dw] >> ls;
+ scan->UserBuf.pw_rgb[pixels].Blue = scan->Blue.pw[dw] >> ls;
+ }
+ }
+}
+
+/**
+ */
+static void usb_ColorDuplicatePseudo16( Plustek_Device *dev )
+{
+ int next;
+ u_short wR, wG, wB;
+ u_long dw, pixels;
+ ScanDef *scan = &dev->scanning;
+
+ usb_AverageColorByte( dev );
+
+ if (scan->sParam.bSource == SOURCE_ADF) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+
+ wR = (u_short)scan->Red.pcb[0].a_bColor[0];
+ wG = (u_short)scan->Green.pcb[0].a_bColor[0];
+ wB = (u_short)scan->Blue.pcb[0].a_bColor[0];
+
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next) {
+
+ scan->UserBuf.pw_rgb[pixels].Red =
+ (wR + scan->Red.pcb[dw].a_bColor[0]) << bShift;
+ scan->UserBuf.pw_rgb[pixels].Green =
+ (wG + scan->Green.pcb[dw].a_bColor[0]) << bShift;
+ scan->UserBuf.pw_rgb[pixels].Blue =
+ (wB + scan->Blue.pcb[dw].a_bColor[0]) << bShift;
+
+ wR = (u_short)scan->Red.pcb[dw].a_bColor[0];
+ wG = (u_short)scan->Green.pcb[dw].a_bColor[0];
+ wB = (u_short)scan->Blue.pcb[dw].a_bColor[0];
+ }
+}
+
+/**
+ */
+static void usb_ColorDuplicateGray( Plustek_Device *dev )
+{
+ int next;
+ u_long dw, pixels;
+ ScanDef *scan = &dev->scanning;
+
+ usb_AverageColorByte( dev );
+
+ if (scan->sParam.bSource == SOURCE_ADF) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+
+ switch(scan->fGrayFromColor) {
+
+ case 1:
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next)
+ scan->UserBuf.pb[pixels] = scan->Red.pcb[dw].a_bColor[0];
+ break;
+ case 2:
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next)
+ scan->UserBuf.pb[pixels] = scan->Green.pcb[dw].a_bColor[0];
+ break;
+ case 3:
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next)
+ scan->UserBuf.pb[pixels] = scan->Blue.pcb[dw].a_bColor[0];
+ break;
+ }
+}
+
+/**
+ */
+static void usb_ColorDuplicateGray_2( Plustek_Device *dev )
+{
+ int next;
+ u_long dw, pixels;
+ ScanDef *scan = &dev->scanning;
+
+ usb_AverageColorByte( dev );
+
+ if (scan->sParam.bSource == SOURCE_ADF) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+
+ switch(scan->fGrayFromColor)
+ {
+ case 1:
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next)
+ scan->UserBuf.pb[pixels] = scan->Red.pb[dw];
+ break;
+ case 3:
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next)
+ scan->UserBuf.pb[pixels] = scan->Blue.pb[dw];
+ break;
+ default:
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next)
+ scan->UserBuf.pb[pixels] = scan->Green.pb[dw];
+ break;
+ }
+}
+
+/**
+ */
+static void usb_ColorDuplicateGray16( Plustek_Device *dev )
+{
+ int next;
+ u_char ls;
+ u_long dw, pixels;
+ ScanDef *scan = &dev->scanning;
+ SANE_Bool swap = usb_HostSwap();
+
+ usb_AverageColorWord( dev );
+
+ if (scan->sParam.bSource == SOURCE_ADF) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+ if( scan->dwFlag & SCANFLAG_RightAlign )
+ ls = Shift;
+ else
+ ls = 0;
+
+ switch(scan->fGrayFromColor) {
+
+ case 1:
+ if( swap ) {
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next)
+ scan->UserBuf.pw[pixels] =
+ _HILO2WORD(scan->Red.pcw[dw].HiLo[0]) >> ls;
+ } else {
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next)
+ scan->UserBuf.pw[pixels] = scan->Red.pw[dw] >> ls;
+ }
+ break;
+ case 2:
+ if( swap ) {
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next)
+ scan->UserBuf.pw[pixels] =
+ _HILO2WORD(scan->Green.pcw[dw].HiLo[0]) >> ls;
+ } else {
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next)
+ scan->UserBuf.pw[pixels] = scan->Green.pw[dw] >> ls;
+ }
+ break;
+ case 3:
+ if( swap ) {
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next)
+ scan->UserBuf.pw[pixels] =
+ _HILO2WORD(scan->Blue.pcw[dw].HiLo[0]) >> ls;
+ } else {
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next)
+ scan->UserBuf.pw[pixels] = scan->Blue.pw[dw] >> ls;
+ }
+ break;
+ }
+}
+
+/**
+ */
+static void usb_ColorDuplicateGray16_2( Plustek_Device *dev )
+{
+ int next;
+ u_char ls;
+ u_long dw, pixels;
+ HiLoDef tmp;
+ ScanDef *scan = &dev->scanning;
+ SANE_Bool swap = usb_HostSwap();
+
+ usb_AverageColorWord( dev );
+
+ if (scan->sParam.bSource == SOURCE_ADF) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+ if( scan->dwFlag & SCANFLAG_RightAlign )
+ ls = Shift;
+ else
+ ls = 0;
+
+ switch(scan->fGrayFromColor) {
+ case 1:
+ if( swap ) {
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next) {
+ tmp = *((HiLoDef*)&scan->Red.pw[dw]);
+ scan->UserBuf.pw[pixels] = _HILO2WORD(tmp) >> ls;
+ }
+ } else {
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next) {
+ scan->UserBuf.pw[pixels] = scan->Red.pw[dw] >> ls;
+ }
+ }
+ break;
+ case 2:
+ if( swap ) {
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next) {
+ tmp = *((HiLoDef*)&scan->Green.pw[dw]);
+ scan->UserBuf.pw[pixels] = _HILO2WORD(tmp) >> ls;
+ }
+ } else {
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next) {
+ scan->UserBuf.pw[pixels] = scan->Green.pw[dw] >> ls;
+ }
+ }
+ break;
+ case 3:
+ if( swap ) {
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next) {
+ tmp = *((HiLoDef*)&scan->Blue.pw[dw]);
+ scan->UserBuf.pw[pixels] = _HILO2WORD(tmp) >> ls;
+ }
+ } else {
+ for (dw = 0; dw < scan->sParam.Size.dwPixels; dw++, pixels += next) {
+ scan->UserBuf.pw[pixels] = scan->Blue.pw[dw] >> ls;
+ }
+ }
+ break;
+ }
+}
+
+/**
+ */
+static void usb_GrayDuplicate8( Plustek_Device *dev )
+{
+ u_char *dest, *src;
+ u_long pixels;
+ ScanDef *scan = &dev->scanning;
+
+ usb_AverageGrayByte( dev );
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+
+ pixels = scan->sParam.Size.dwPixels;
+ src = scan->Green.pb;
+ dest = scan->UserBuf.pb + pixels - 1;
+
+ for(; pixels; pixels--, src++, dest--)
+ *dest = *src;
+ } else {
+ memcpy( scan->UserBuf.pb, scan->Green.pb, scan->sParam.Size.dwBytes );
+ }
+}
+
+/**
+ */
+static void usb_GrayDuplicate16( Plustek_Device *dev )
+{
+ int next;
+ u_char ls;
+ u_short *dest;
+ u_long pixels;
+ HiLoDef *pwm;
+ ScanDef *scan = &dev->scanning;
+ SANE_Bool swap = usb_HostSwap();
+
+ usb_AverageGrayWord( dev );
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ next = -1;
+ dest = scan->UserBuf.pw + scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ dest = scan->UserBuf.pw;
+ }
+
+ if( scan->dwFlag & SCANFLAG_RightAlign )
+ ls = Shift;
+ else
+ ls = 0;
+
+ pwm = scan->Green.philo;
+ for( pixels=scan->sParam.Size.dwPixels; pixels--; pwm++, dest += next ) {
+ if( swap )
+ *dest = (_PHILO2WORD(pwm)) >> ls;
+ else
+ *dest = (_PLOHI2WORD(pwm)) >> ls;
+ }
+}
+
+/**
+ */
+static void usb_GrayDuplicatePseudo16( Plustek_Device *dev )
+{
+ u_char *src;
+ int next;
+ u_short g;
+ u_short *dest;
+ u_long pixels;
+ ScanDef *scan = &dev->scanning;
+
+ usb_AverageGrayByte( dev );
+
+ if (scan->sParam.bSource == SOURCE_ADF) {
+ next = -1;
+ dest = scan->UserBuf.pw + scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ dest = scan->UserBuf.pw;
+ }
+
+ src = scan->Green.pb;
+ g = (u_short)*src;
+
+ for( pixels=scan->sParam.Size.dwPixels; pixels--; src++, dest += next ) {
+
+ *dest = (g + *src) << bShift;
+ g = (u_short)*src;
+ }
+}
+
+/** copy binary data to the user buffer
+ */
+static void usb_BWDuplicate( Plustek_Device *dev )
+{
+ ScanDef *scan = &dev->scanning;
+
+ if(scan->sParam.bSource == SOURCE_ADF)
+ {
+ usb_ReverseBitStream( scan->Green.pb, scan->UserBuf.pb,
+ scan->sParam.Size.dwValidPixels,
+ scan->dwBytesLine, 0, 0, 1 );
+ } else {
+ memcpy( scan->UserBuf.pb, scan->Green.pb, scan->sParam.Size.dwBytes );
+ }
+}
+
+/** generate binary data from one of the three color inputs according to the
+ * value in fGrayFromColor (CCD version)
+ */
+static void usb_BWDuplicateFromColor( Plustek_Device *dev )
+{
+ int next;
+ u_char d, s, *dest;
+ u_short j;
+ u_long pixels;
+ ColorByteDef *src;
+ ScanDef *scan = &dev->scanning;
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ dest = scan->UserBuf.pb + scan->sParam.Size.dwPixels - 1;
+ next = -1;
+ } else {
+ dest = scan->UserBuf.pb;
+ next = 1;
+ }
+
+ switch(scan->fGrayFromColor) {
+ case 1: src = scan->Red.pcb; break;
+ case 3: src = scan->Blue.pcb; break;
+ default: src = scan->Green.pcb; break;
+ }
+
+ d = j = 0;
+ for( pixels = scan->sParam.Size.dwPixels; pixels; pixels--, src++ ) {
+
+ s = src->a_bColor[0];
+ if( s != 0 )
+ d |= BitTable[j];
+ j++;
+ if( j == 8 ) {
+ *dest = d;
+ dest += next;
+
+ d = j = 0;
+ }
+ }
+}
+
+/** generate binary data from one of the three color inputs according to the
+ * value in fGrayFromColor (CIS version)
+ */
+static void usb_BWDuplicateFromColor_2( Plustek_Device *dev )
+{
+ int next;
+ u_char d, *dest, *src;
+ u_short j;
+ u_long pixels;
+ ScanDef *scan = &dev->scanning;
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ dest = scan->UserBuf.pb + scan->sParam.Size.dwPixels - 1;
+ next = -1;
+ } else {
+ dest = scan->UserBuf.pb;
+ next = 1;
+ }
+
+ switch(scan->fGrayFromColor) {
+ case 1: src = scan->Red.pb; break;
+ case 3: src = scan->Blue.pb; break;
+ default: src = scan->Green.pb; break;
+ }
+
+ d = j = 0;
+ for( pixels = scan->sParam.Size.dwPixels; pixels; pixels--, src++ ) {
+
+ if( *src != 0 )
+ d |= BitTable[j];
+ j++;
+ if( j == 8 ) {
+ *dest = d;
+ dest += next;
+
+ d = j = 0;
+ }
+ }
+}
+
+/************************** the scaling functions ****************************/
+
+/**
+ */
+static void usb_ColorScaleGray( Plustek_Device *dev )
+{
+ int izoom, ddax, next;
+ u_long dw, pixels;
+ ColorByteDef *src;
+ ScanDef *scan = &dev->scanning;
+
+ usb_AverageColorByte( dev );
+
+ dw = scan->sParam.Size.dwPixels;
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+
+ switch(scan->fGrayFromColor) {
+ case 1: src = scan->Red.pcb; break;
+ case 3: src = scan->Blue.pcb; break;
+ default: src = scan->Green.pcb; break;
+ }
+
+ izoom = usb_GetScaler( scan );
+
+ for( ddax = 0; dw; src++ ) {
+
+ ddax -= _SCALER;
+ while((ddax < 0) && (dw > 0)) {
+
+ scan->UserBuf.pb[pixels] = src->a_bColor[0];
+
+ pixels += next;
+ ddax += izoom;
+ dw--;
+ }
+ }
+}
+
+/**
+ */
+static void usb_ColorScaleGray_2( Plustek_Device *dev )
+{
+ u_char *src;
+ int izoom, ddax, next;
+ u_long dw, pixels;
+ ScanDef *scan = &dev->scanning;
+
+ usb_AverageColorByte( dev );
+
+ dw = scan->sParam.Size.dwPixels;
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+
+ switch(scan->fGrayFromColor) {
+ case 1: src = scan->Red.pb; break;
+ case 3: src = scan->Blue.pb; break;
+ default: src = scan->Green.pb; break;
+ }
+
+ izoom = usb_GetScaler( scan );
+
+ for( ddax = 0; dw; src++ ) {
+
+ ddax -= _SCALER;
+ while((ddax < 0) && (dw > 0)) {
+
+ scan->UserBuf.pb[pixels] = *src;
+
+ pixels += next;
+ ddax += izoom;
+ dw--;
+ }
+ }
+}
+
+/**
+ */
+static void usb_ColorScaleGray16( Plustek_Device *dev )
+{
+ u_char ls;
+ int izoom, ddax, next;
+ u_long dw, pixels, bitsput;
+ SANE_Bool swap = usb_HostSwap();
+ ScanDef *scan = &dev->scanning;
+
+ usb_AverageColorByte( dev );
+
+ dw = scan->sParam.Size.dwPixels;
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+
+ izoom = usb_GetScaler( scan );
+
+ if( scan->dwFlag & SCANFLAG_RightAlign )
+ ls = Shift;
+ else
+ ls = 0;
+
+ switch( scan->fGrayFromColor ) {
+
+ case 1:
+ for( bitsput = 0, ddax = 0; dw; bitsput++ ) {
+
+ ddax -= _SCALER;
+
+ while((ddax < 0) && (dw > 0)) {
+ if( swap ) {
+ scan->UserBuf.pw[pixels] =
+ _HILO2WORD(scan->Red.pcw[bitsput].HiLo[0]) >> ls;
+ } else {
+ scan->UserBuf.pw[pixels] = scan->Red.pw[bitsput] >> ls;
+ }
+ pixels += next;
+ ddax += izoom;
+ dw--;
+ }
+ }
+ break;
+
+ case 2:
+ for( bitsput = 0, ddax = 0; dw; bitsput++ ) {
+
+ ddax -= _SCALER;
+
+ while((ddax < 0) && (dw > 0)) {
+ if( swap ) {
+ scan->UserBuf.pw[pixels] =
+ _HILO2WORD(scan->Green.pcw[bitsput].HiLo[0]) >> ls;
+ } else {
+ scan->UserBuf.pw[pixels] = scan->Green.pw[bitsput] >> ls;
+ }
+ pixels += next;
+ ddax += izoom;
+ dw--;
+ }
+ }
+ break;
+
+ case 3:
+ for( bitsput = 0, ddax = 0; dw; bitsput++ ) {
+
+ ddax -= _SCALER;
+
+ while((ddax < 0) && (dw > 0)) {
+ if( swap ) {
+ scan->UserBuf.pw[pixels] =
+ _HILO2WORD(scan->Blue.pcw[bitsput].HiLo[0]) >> ls;
+ } else {
+ scan->UserBuf.pw[pixels] = scan->Blue.pw[bitsput] >> ls;
+ }
+ pixels += next;
+ ddax += izoom;
+ dw--;
+ }
+ }
+ break;
+ }
+}
+
+/**
+ */
+static void usb_ColorScaleGray16_2( Plustek_Device *dev )
+{
+ u_char ls;
+ int izoom, ddax, next;
+ u_long dw, pixels, bitsput;
+ HiLoDef tmp;
+ SANE_Bool swap = usb_HostSwap();
+ ScanDef *scan = &dev->scanning;
+
+ usb_AverageColorByte( dev );
+
+ dw = scan->sParam.Size.dwPixels;
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+
+ izoom = usb_GetScaler( scan );
+
+ if( scan->dwFlag & SCANFLAG_RightAlign )
+ ls = Shift;
+ else
+ ls = 0;
+
+ switch( scan->fGrayFromColor ) {
+
+ case 1:
+ for( bitsput = 0, ddax = 0; dw; bitsput++ ) {
+
+ ddax -= _SCALER;
+
+ while((ddax < 0) && (dw > 0)) {
+ if( swap ) {
+ tmp = *((HiLoDef*)&scan->Red.pw[bitsput]);
+ scan->UserBuf.pw[pixels] = _HILO2WORD(tmp) >> ls;
+ } else {
+ scan->UserBuf.pw[pixels] = scan->Red.pw[dw] >> ls;
+ }
+ pixels += next;
+ ddax += izoom;
+ dw--;
+ }
+ }
+ break;
+
+ case 2:
+ for( bitsput = 0, ddax = 0; dw; bitsput++ ) {
+
+ ddax -= _SCALER;
+
+ while((ddax < 0) && (dw > 0)) {
+ if( swap ) {
+ tmp = *((HiLoDef*)&scan->Green.pw[bitsput]);
+ scan->UserBuf.pw[pixels] = _HILO2WORD(tmp) >> ls;
+ } else {
+ scan->UserBuf.pw[pixels] = scan->Green.pw[bitsput] >> ls;
+ }
+ pixels += next;
+ ddax += izoom;
+ dw--;
+ }
+ }
+ break;
+
+ case 3:
+ for( bitsput = 0, ddax = 0; dw; bitsput++ ) {
+
+ ddax -= _SCALER;
+
+ while((ddax < 0) && (dw > 0)) {
+ if( swap ) {
+ tmp = *((HiLoDef*)&scan->Blue.pw[bitsput]);
+ scan->UserBuf.pw[pixels] = _HILO2WORD(tmp) >> ls;
+ } else {
+ scan->UserBuf.pw[pixels] = scan->Blue.pw[bitsput] >> ls;
+ }
+ pixels += next;
+ ddax += izoom;
+ dw--;
+ }
+ }
+ break;
+ }
+}
+
+/** here we copy and scale from scanner world to user world...
+ */
+static void usb_ColorScale8( Plustek_Device *dev )
+{
+ int izoom, ddax, next;
+ u_long dw, pixels, bitsput;
+ ScanDef *scan = &dev->scanning;
+
+ usb_AverageColorByte( dev );
+
+ dw = scan->sParam.Size.dwPixels;
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+
+ izoom = usb_GetScaler( scan );
+
+ for( bitsput = 0, ddax = 0; dw; bitsput++ ) {
+
+ ddax -= _SCALER;
+
+ while((ddax < 0) && (dw > 0)) {
+
+ scan->UserBuf.pb_rgb[pixels].Red =
+ scan->Red.pcb[bitsput].a_bColor[0];
+ scan->UserBuf.pb_rgb[pixels].Green =
+ scan->Green.pcb[bitsput].a_bColor[0];
+ scan->UserBuf.pb_rgb[pixels].Blue =
+ scan->Blue.pcb[bitsput].a_bColor[0];
+ pixels += next;
+ ddax += izoom;
+ dw--;
+ }
+ }
+}
+
+static void usb_ColorScale8_2( Plustek_Device *dev )
+{
+ int izoom, ddax, next;
+ u_long dw, pixels, bitsput;
+ ScanDef *scan = &dev->scanning;
+
+ dw = scan->sParam.Size.dwPixels;
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+
+ izoom = usb_GetScaler( scan );
+
+ for( bitsput = 0, ddax = 0; dw; bitsput++ ) {
+
+ ddax -= _SCALER;
+
+ while((ddax < 0) && (dw > 0)) {
+
+ scan->UserBuf.pb_rgb[pixels].Red = scan->Red.pb[bitsput];
+ scan->UserBuf.pb_rgb[pixels].Green = scan->Green.pb[bitsput];
+ scan->UserBuf.pb_rgb[pixels].Blue = scan->Blue.pb[bitsput];
+
+ pixels += next;
+ ddax += izoom;
+ dw--;
+ }
+ }
+}
+
+/**
+ */
+static void usb_ColorScale16( Plustek_Device *dev )
+{
+ u_char ls;
+ int izoom, ddax, next;
+ u_long dw, pixels, bitsput;
+ SANE_Bool swap = usb_HostSwap();
+ ScanDef *scan = &dev->scanning;
+
+ usb_AverageColorWord( dev );
+
+ dw = scan->sParam.Size.dwPixels;
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+
+ izoom = usb_GetScaler( scan );
+
+ if( scan->dwFlag & SCANFLAG_RightAlign )
+ ls = Shift;
+ else
+ ls = 0;
+
+ for( bitsput = 0, ddax = 0; dw; bitsput++ ) {
+
+ ddax -= _SCALER;
+
+ while((ddax < 0) && (dw > 0)) {
+
+ if( swap ) {
+
+ scan->UserBuf.pw_rgb[pixels].Red =
+ _HILO2WORD(scan->Red.pcw[bitsput].HiLo[0]) >> ls;
+
+ scan->UserBuf.pw_rgb[pixels].Green =
+ _HILO2WORD(scan->Green.pcw[bitsput].HiLo[0]) >> ls;
+
+ scan->UserBuf.pw_rgb[pixels].Blue =
+ _HILO2WORD(scan->Blue.pcw[bitsput].HiLo[0]) >> ls;
+
+ } else {
+
+ scan->UserBuf.pw_rgb[pixels].Red = scan->Red.pw[bitsput]>>ls;
+ scan->UserBuf.pw_rgb[pixels].Green = scan->Green.pw[bitsput] >> ls;
+ scan->UserBuf.pw_rgb[pixels].Blue = scan->Blue.pw[bitsput] >> ls;
+ }
+ pixels += next;
+ ddax += izoom;
+ dw--;
+ }
+ }
+}
+
+/**
+ */
+static void usb_ColorScale16_2( Plustek_Device *dev )
+{
+ u_char ls;
+ HiLoDef tmp;
+ int izoom, ddax, next;
+ u_long dw, pixels, bitsput;
+ SANE_Bool swap = usb_HostSwap();
+ ScanDef *scan = &dev->scanning;
+
+ usb_AverageColorWord( dev );
+
+ dw = scan->sParam.Size.dwPixels;
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+
+ izoom = usb_GetScaler( scan );
+
+ if( scan->dwFlag & SCANFLAG_RightAlign )
+ ls = Shift;
+ else
+ ls = 0;
+
+ for( bitsput = 0, ddax = 0; dw; bitsput++ ) {
+
+ ddax -= _SCALER;
+
+ while((ddax < 0) && (dw > 0)) {
+
+ if( swap ) {
+
+ tmp = *((HiLoDef*)&scan->Red.pw[bitsput]);
+ scan->UserBuf.pw_rgb[pixels].Red = _HILO2WORD(tmp) >> ls;
+
+ tmp = *((HiLoDef*)&scan->Green.pw[bitsput]);
+ scan->UserBuf.pw_rgb[pixels].Green = _HILO2WORD(tmp) >> ls;
+
+ tmp = *((HiLoDef*)&scan->Blue.pw[bitsput]);
+ scan->UserBuf.pw_rgb[pixels].Blue = _HILO2WORD(tmp) >> ls;
+
+ } else {
+
+ scan->UserBuf.pw_rgb[pixels].Red = scan->Red.pw[bitsput] >> ls;
+ scan->UserBuf.pw_rgb[pixels].Green = scan->Green.pw[bitsput] >> ls;
+ scan->UserBuf.pw_rgb[pixels].Blue = scan->Blue.pw[bitsput] >> ls;
+ }
+ pixels += next;
+ ddax += izoom;
+ dw--;
+ }
+ }
+}
+
+/**
+ */
+static void usb_ColorScalePseudo16( Plustek_Device *dev )
+{
+ int izoom, ddax, next;
+ u_short wR, wG, wB;
+ u_long dw, pixels, bitsput;
+ ScanDef *scan = &dev->scanning;
+
+ usb_AverageColorByte( dev );
+
+ dw = scan->sParam.Size.dwPixels;
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ next = -1;
+ pixels = scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ pixels = 0;
+ }
+
+ izoom = usb_GetScaler( scan );
+
+ wR = (u_short)scan->Red.pcb[0].a_bColor[0];
+ wG = (u_short)scan->Green.pcb[0].a_bColor[1];
+ wB = (u_short)scan->Blue.pcb[0].a_bColor[2];
+
+ for( bitsput = 0, ddax = 0; dw; bitsput++ ) {
+
+ ddax -= _SCALER;
+
+ while((ddax < 0) && (dw > 0)) {
+
+ scan->UserBuf.pw_rgb[pixels].Red =
+ (wR + scan->Red.pcb[bitsput].a_bColor[0]) << bShift;
+
+ scan->UserBuf.pw_rgb[pixels].Green =
+ (wG + scan->Green.pcb[bitsput].a_bColor[0]) << bShift;
+
+ scan->UserBuf.pw_rgb[pixels].Blue =
+ (wB + scan->Blue.pcb[bitsput].a_bColor[0]) << bShift;
+
+ pixels += next;
+ ddax += izoom;
+ dw--;
+ }
+
+ wR = (u_short)scan->Red.pcb[bitsput].a_bColor[0];
+ wG = (u_short)scan->Green.pcb[bitsput].a_bColor[0];
+ wB = (u_short)scan->Blue.pcb[bitsput].a_bColor[0];
+ }
+}
+
+/**
+ */
+static void usb_BWScale( Plustek_Device *dev )
+{
+ u_char tmp, *dest, *src;
+ int izoom, ddax;
+ u_long i, dw;
+ ScanDef *scan = &dev->scanning;
+
+ src = scan->Green.pb;
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ int iSum = wSum;
+ usb_ReverseBitStream(scan->Green.pb, scan->UserBuf.pb,
+ scan->sParam.Size.dwValidPixels,
+ scan->dwBytesLine, scan->sParam.PhyDpi.x,
+ scan->sParam.UserDpi.x, 1 );
+ wSum = iSum;
+ return;
+ } else {
+ dest = scan->UserBuf.pb;
+ }
+
+ izoom = usb_GetScaler( scan );
+
+ memset( dest, 0, scan->dwBytesLine );
+ ddax = 0;
+ dw = 0;
+
+ for( i = 0; i < scan->sParam.Size.dwValidPixels; i++ ) {
+
+ ddax -= _SCALER;
+
+ while( ddax < 0 ) {
+
+ tmp = src[(i>>3)];
+
+ if((dw>>3) < scan->sParam.Size.dwValidPixels ) {
+
+ if( 0 != (tmp &= (1 << ((~(i & 0x7))&0x7))))
+ dest[dw>>3] |= (1 << ((~(dw & 0x7))&0x7));
+ }
+ dw++;
+ ddax += izoom;
+ }
+ }
+}
+
+/**
+ */
+static void usb_BWScaleFromColor( Plustek_Device *dev )
+{
+ u_char d, s, *dest;
+ u_short j;
+ u_long pixels;
+ int izoom, ddax, next;
+ ColorByteDef *src;
+ ScanDef *scan = &dev->scanning;
+
+ if (scan->sParam.bSource == SOURCE_ADF) {
+ dest = scan->UserBuf.pb + scan->sParam.Size.dwPixels - 1;
+ next = -1;
+ } else {
+ dest = scan->UserBuf.pb;
+ next = 1;
+ }
+
+ /* setup the source buffer */
+ switch(scan->fGrayFromColor) {
+ case 1: src = scan->Red.pcb; break;
+ case 3: src = scan->Blue.pcb; break;
+ default: src = scan->Green.pcb; break;
+ }
+
+ izoom = usb_GetScaler( scan );
+ ddax = 0;
+
+ d = j = 0;
+ for( pixels = scan->sParam.Size.dwPixels; pixels; src++ ) {
+
+ ddax -= _SCALER;
+
+ while((ddax < 0) && (pixels > 0)) {
+
+ s = src->a_bColor[0];
+ if( s != 0 )
+ d |= BitTable[j];
+ j++;
+ if( j == 8 ) {
+ *dest = d;
+ dest += next;
+ d = j = 0;
+ }
+ ddax += izoom;
+ pixels--;
+ }
+ }
+}
+
+/**
+ */
+static void usb_BWScaleFromColor_2( Plustek_Device *dev )
+{
+ u_char d, *dest, *src;
+ u_short j;
+ u_long pixels;
+ int izoom, ddax, next;
+ ScanDef *scan = &dev->scanning;
+
+ if (scan->sParam.bSource == SOURCE_ADF) {
+ dest = scan->UserBuf.pb + scan->sParam.Size.dwPixels - 1;
+ next = -1;
+ } else {
+ dest = scan->UserBuf.pb;
+ next = 1;
+ }
+
+ /* setup the source buffer */
+ switch(scan->fGrayFromColor) {
+ case 1: src = scan->Red.pb; break;
+ case 3: src = scan->Blue.pb; break;
+ default: src = scan->Green.pb; break;
+ }
+
+ izoom = usb_GetScaler( scan );
+ ddax = 0;
+
+ d = j = 0;
+ for( pixels = scan->sParam.Size.dwPixels; pixels; src++ ) {
+
+ ddax -= _SCALER;
+
+ while((ddax < 0) && (pixels > 0)) {
+
+ if( *src != 0 )
+ d |= BitTable[j];
+ j++;
+ if( j == 8 ) {
+ *dest = d;
+ dest += next;
+ d = j = 0;
+ }
+ ddax += izoom;
+ pixels--;
+ }
+ }
+}
+
+/**
+ */
+static void usb_GrayScale8( Plustek_Device *dev )
+{
+ u_char *dest, *src;
+ int izoom, ddax, next;
+ u_long pixels;
+ ScanDef *scan = &dev->scanning;
+
+ usb_AverageGrayByte( dev );
+
+ src = scan->Green.pb;
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ dest = scan->UserBuf.pb + scan->sParam.Size.dwPixels - 1;
+ next = -1;
+ } else {
+ dest = scan->UserBuf.pb;
+ next = 1;
+ }
+
+ izoom = usb_GetScaler( scan );
+ ddax = 0;
+
+ for( pixels = scan->sParam.Size.dwPixels; pixels; src++ ) {
+
+ ddax -= _SCALER;
+
+ while((ddax < 0) && (pixels > 0)) {
+
+ *dest = *src;
+ dest += next;
+ ddax += izoom;
+ pixels--;
+ }
+ }
+}
+
+/**
+ */
+static void usb_GrayScale16( Plustek_Device *dev )
+{
+ u_char ls;
+ int izoom, ddax, next;
+ u_short *dest;
+ u_long pixels;
+ HiLoDef *pwm;
+ ScanDef *scan = &dev->scanning;
+ SANE_Bool swap = usb_HostSwap();
+
+ usb_AverageGrayWord( dev);
+
+ pwm = scan->Green.philo;
+ wSum = scan->sParam.PhyDpi.x;
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ next = -1;
+ dest = scan->UserBuf.pw + scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ dest = scan->UserBuf.pw;
+ }
+
+ izoom = usb_GetScaler( scan );
+ ddax = 0;
+
+ if( scan->dwFlag & SCANFLAG_RightAlign )
+ ls = Shift;
+ else
+ ls = 0;
+
+ for( pixels = scan->sParam.Size.dwPixels; pixels; pwm++ ) {
+
+ ddax -= _SCALER;
+
+ while((ddax < 0) && (pixels > 0)) {
+
+ if( swap )
+ *dest = _PHILO2WORD(pwm) >> ls;
+ else
+ *dest = _PLOHI2WORD(pwm) >> ls;
+
+ dest += next;
+ ddax += izoom;
+ pixels--;
+ }
+ }
+}
+
+/**
+ */
+static void usb_GrayScalePseudo16( Plustek_Device *dev )
+{
+ u_char *src;
+ int izoom, ddax, next;
+ u_short *dest, g;
+ u_long pixels;
+ ScanDef *scan = &dev->scanning;
+
+ usb_AverageGrayByte( dev );
+
+ if( scan->sParam.bSource == SOURCE_ADF ) {
+ next = -1;
+ dest = scan->UserBuf.pw + scan->sParam.Size.dwPixels - 1;
+ } else {
+ next = 1;
+ dest = scan->UserBuf.pw;
+ }
+
+ src = scan->Green.pb;
+ g = (u_short)*src;
+
+ izoom = usb_GetScaler( scan );
+ ddax = 0;
+
+ for( pixels = scan->sParam.Size.dwPixels; pixels; src++ ) {
+
+ ddax -= _SCALER;
+
+ while((ddax < 0) && (pixels > 0)) {
+
+ *dest = (g + *src) << bShift;
+ dest += next;
+ ddax += izoom;
+ pixels--;
+ }
+ g = (u_short)*src;
+ }
+}
+
+/** function to select the apropriate pixel copy function
+ */
+static void usb_GetImageProc( Plustek_Device *dev )
+{
+ ScanDef *scan = &dev->scanning;
+ DCapsDef *sc = &dev->usbDev.Caps;
+ HWDef *hw = &dev->usbDev.HwSetting;
+
+ bShift = 0;
+
+ if( scan->sParam.UserDpi.x != scan->sParam.PhyDpi.x ) {
+
+ /* Pixel scaling... */
+ switch( scan->sParam.bDataType ) {
+
+ case SCANDATATYPE_Color:
+ if (scan->sParam.bBitDepth > 8) {
+
+ if( usb_IsCISDevice(dev)){
+ scan->pfnProcess = usb_ColorScale16_2;
+ DBG( _DBG_INFO, "ImageProc is: ColorScale16_2\n" );
+ } else {
+ scan->pfnProcess = usb_ColorScale16;
+ DBG( _DBG_INFO, "ImageProc is: ColorScale16\n" );
+ }
+ if (scan->fGrayFromColor) {
+ if( usb_IsCISDevice(dev)){
+ scan->pfnProcess = usb_ColorScaleGray16_2;
+ DBG( _DBG_INFO, "ImageProc is: ColorScaleGray16_2\n" );
+ } else {
+ scan->pfnProcess = usb_ColorScaleGray16;
+ DBG( _DBG_INFO, "ImageProc is: ColorScaleGray16\n" );
+ }
+ }
+ } else if (scan->dwFlag & SCANFLAG_Pseudo48) {
+ scan->pfnProcess = usb_ColorScalePseudo16;
+ DBG( _DBG_INFO, "ImageProc is: ColorScalePseudo16\n" );
+
+ } else if (scan->fGrayFromColor) {
+
+ if( usb_IsCISDevice(dev)){
+ if (scan->fGrayFromColor > 7 ) {
+ scan->pfnProcess = usb_BWScaleFromColor_2;
+ DBG( _DBG_INFO, "ImageProc is: BWScaleFromColor_2\n" );
+ } else {
+ scan->pfnProcess = usb_ColorScaleGray_2;
+ DBG( _DBG_INFO, "ImageProc is: ColorScaleGray_2\n" );
+ }
+ } else {
+ if (scan->fGrayFromColor > 7 ) {
+ scan->pfnProcess = usb_BWScaleFromColor;
+ DBG( _DBG_INFO, "ImageProc is: BWScaleFromColor\n" );
+ } else {
+ scan->pfnProcess = usb_ColorScaleGray;
+ DBG( _DBG_INFO, "ImageProc is: ColorScaleGray\n" );
+ }
+ }
+ } else {
+
+ if( usb_IsCISDevice(dev)){
+ scan->pfnProcess = usb_ColorScale8_2;
+ DBG( _DBG_INFO, "ImageProc is: ColorScale8_2\n" );
+ } else {
+ scan->pfnProcess = usb_ColorScale8;
+ DBG( _DBG_INFO, "ImageProc is: ColorScale8\n" );
+ }
+ }
+ break;
+
+ case SCANDATATYPE_Gray:
+ if (scan->sParam.bBitDepth > 8) {
+ scan->pfnProcess = usb_GrayScale16;
+ DBG( _DBG_INFO, "ImageProc is: GrayScale16\n" );
+ } else {
+
+ if (scan->dwFlag & SCANFLAG_Pseudo48) {
+ scan->pfnProcess = usb_GrayScalePseudo16;
+ DBG( _DBG_INFO, "ImageProc is: GrayScalePseudo16\n" );
+ } else {
+ scan->pfnProcess = usb_GrayScale8;
+ DBG( _DBG_INFO, "ImageProc is: GrayScale8\n" );
+ }
+ }
+ break;
+
+ default:
+ scan->pfnProcess = usb_BWScale;
+ DBG( _DBG_INFO, "ImageProc is: BWScale\n" );
+ break;
+ }
+
+ } else {
+
+ /* Pixel copy */
+ switch( scan->sParam.bDataType ) {
+
+ case SCANDATATYPE_Color:
+ if (scan->sParam.bBitDepth > 8) {
+ if( usb_IsCISDevice(dev)){
+ scan->pfnProcess = usb_ColorDuplicate16_2;
+ DBG( _DBG_INFO, "ImageProc is: ColorDuplicate16_2\n" );
+ } else {
+ scan->pfnProcess = usb_ColorDuplicate16;
+ DBG( _DBG_INFO, "ImageProc is: ColorDuplicate16\n" );
+ }
+ if (scan->fGrayFromColor) {
+ if( usb_IsCISDevice(dev)){
+ scan->pfnProcess = usb_ColorDuplicateGray16_2;
+ DBG( _DBG_INFO, "ImageProc is: ColorDuplicateGray16_2\n" );
+ } else {
+ scan->pfnProcess = usb_ColorDuplicateGray16;
+ DBG( _DBG_INFO, "ImageProc is: ColorDuplicateGray16\n" );
+ }
+ }
+ } else if (scan->dwFlag & SCANFLAG_Pseudo48) {
+ scan->pfnProcess = usb_ColorDuplicatePseudo16;
+ DBG( _DBG_INFO, "ImageProc is: ColorDuplicatePseudo16\n" );
+ } else if (scan->fGrayFromColor) {
+ if( usb_IsCISDevice(dev)){
+ if (scan->fGrayFromColor > 7 ) {
+ scan->pfnProcess = usb_BWDuplicateFromColor_2;
+ DBG( _DBG_INFO, "ImageProc is: BWDuplicateFromColor_2\n" );
+ } else {
+ scan->pfnProcess = usb_ColorDuplicateGray_2;
+ DBG( _DBG_INFO, "ImageProc is: ColorDuplicateGray_2\n" );
+ }
+ } else {
+ if (scan->fGrayFromColor > 7 ) {
+ scan->pfnProcess = usb_BWDuplicateFromColor;
+ DBG( _DBG_INFO, "ImageProc is: BWDuplicateFromColor\n" );
+ } else {
+ scan->pfnProcess = usb_ColorDuplicateGray;
+ DBG( _DBG_INFO, "ImageProc is: ColorDuplicateGray\n" );
+ }
+ }
+ } else {
+ if( usb_IsCISDevice(dev)){
+ scan->pfnProcess = usb_ColorDuplicate8_2;
+ DBG( _DBG_INFO, "ImageProc is: ColorDuplicate8_2\n" );
+ } else {
+ scan->pfnProcess = usb_ColorDuplicate8;
+ DBG( _DBG_INFO, "ImageProc is: ColorDuplicate8\n" );
+ }
+ }
+ break;
+
+ case SCANDATATYPE_Gray:
+ if (scan->sParam.bBitDepth > 8) {
+ scan->pfnProcess = usb_GrayDuplicate16;
+ DBG( _DBG_INFO, "ImageProc is: GrayDuplicate16\n" );
+ } else {
+ if (scan->dwFlag & SCANFLAG_Pseudo48) {
+ scan->pfnProcess = usb_GrayDuplicatePseudo16;
+ DBG( _DBG_INFO, "ImageProc is: GrayDuplicatePseudo16\n" );
+ } else {
+ scan->pfnProcess = usb_GrayDuplicate8;
+ DBG( _DBG_INFO, "ImageProc is: GrayDuplicate8\n" );
+ }
+ }
+ break;
+
+ default:
+ scan->pfnProcess = usb_BWDuplicate;
+ DBG( _DBG_INFO, "ImageProc is: BWDuplicate\n" );
+ break;
+ }
+ }
+
+ if( scan->sParam.bBitDepth == 8 ) {
+
+ if( scan->dwFlag & SCANFLAG_Pseudo48 ) {
+ if( scan->dwFlag & SCANFLAG_RightAlign ) {
+ bShift = 5;
+ } else {
+
+ /* this should fix the Bearpaw/U12 discrepancy
+ * in general the fix is needed, but not for the U12
+ * why? - no idea!
+ */
+ if(_WAF_BSHIFT7_BUG == (_WAF_BSHIFT7_BUG & sc->workaroundFlag))
+ bShift = 0; /* Holger Bischof 16.12.2001 */
+ else
+ bShift = 7;
+ }
+ DBG( _DBG_INFO, "bShift adjusted: %u\n", bShift );
+ }
+ }
+
+ if( _LM9833 == hw->chip ) {
+ Shift = 0;
+ Mask = 0xFFFF;
+ } else {
+ Shift = 2;
+ Mask = 0xFFFC;
+ }
+}
+
+/**
+ * here we read the image data into our intermediate buffer (in the NT version
+ * the function was implemented as thread)
+ */
+static SANE_Int usb_ReadData( Plustek_Device *dev )
+{
+ u_long dw, dwRet, dwBytes, pl;
+ ScanDef *scan = &dev->scanning;
+ HWDef *hw = &dev->usbDev.HwSetting;
+
+ DBG( _DBG_READ, "usb_ReadData()\n" );
+
+ pl = dev->usbDev.a_bRegs[0x4e] * hw->wDRAMSize/128;
+
+ while( scan->sParam.Size.dwTotalBytes ) {
+
+ if( usb_IsEscPressed()) {
+ DBG( _DBG_INFO, "usb_ReadData() - Cancel detected...\n" );
+ return 0;
+ }
+
+ if( scan->sParam.Size.dwTotalBytes > scan->dwBytesScanBuf )
+ dw = scan->dwBytesScanBuf;
+ else
+ dw = scan->sParam.Size.dwTotalBytes;
+
+ scan->sParam.Size.dwTotalBytes -= dw;
+
+ if(!scan->sParam.Size.dwTotalBytes && dw < (pl * 1024))
+ {
+ if(!(dev->usbDev.a_bRegs[0x4e] = (u_char)ceil((double)dw /
+ (4.0 * hw->wDRAMSize)))) {
+ dev->usbDev.a_bRegs[0x4e] = 1;
+ }
+ dev->usbDev.a_bRegs[0x4f] = 0;
+
+ sanei_lm983x_write( dev->fd, 0x4e, &dev->usbDev.a_bRegs[0x4e], 2, SANE_TRUE );
+ }
+
+ while( scan->bLinesToSkip ) {
+
+ DBG( _DBG_READ, "Skipping %u lines\n", scan->bLinesToSkip );
+
+ dwBytes = scan->bLinesToSkip * scan->sParam.Size.dwPhyBytes;
+
+ if (dwBytes > scan->dwBytesScanBuf) {
+
+ dwBytes = scan->dwBytesScanBuf;
+ scan->bLinesToSkip -= scan->dwLinesScanBuf;
+ } else {
+ scan->bLinesToSkip = 0;
+ }
+
+ if( !usb_ScanReadImage( dev, scan->pbGetDataBuf, dwBytes ))
+ return 0;
+ }
+
+ if( usb_ScanReadImage( dev, scan->pbGetDataBuf, dw )) {
+
+ dumpPic("plustek-pic.raw", scan->pbGetDataBuf, dw, 0);
+
+ if( scan->dwLinesDiscard ) {
+
+ DBG(_DBG_READ, "Discarding %lu lines\n", scan->dwLinesDiscard);
+
+ dwRet = dw / scan->sParam.Size.dwPhyBytes;
+
+ if (scan->dwLinesDiscard > dwRet) {
+ scan->dwLinesDiscard -= dwRet;
+ dwRet = 0;
+ } else {
+ dwRet -= scan->dwLinesDiscard;
+ scan->dwLinesDiscard = 0;
+ }
+ } else {
+
+ dwRet = dw / scan->sParam.Size.dwPhyBytes;
+ }
+
+ scan->pbGetDataBuf += scan->dwBytesScanBuf;
+ if( scan->pbGetDataBuf >= scan->pbScanBufEnd ) {
+ scan->pbGetDataBuf = scan->pbScanBufBegin;
+ }
+
+ if( dwRet )
+ return dwRet;
+ }
+ }
+ return 0;
+}
+
+/* END PLUSTEK-USBIMG.C .....................................................*/