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sane-project-backends/backend/plustek-pp_image.c

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52 KiB
C
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/*.............................................................................
* Project : SANE library for Plustek parallelport flatbed scanners.
*.............................................................................
*/
/* @file plustek-pp_image.c
* @brief functions to convert scanner data into image data
*
* based on sources acquired from Plustek Inc.
* Copyright (C) 1998 Plustek Inc.
* Copyright (C) 2000-2004 Gerhard Jaeger <gerhard@gjaeger.de>
* also based on the work done by Rick Bronson
*
* History:
* - 0.30 - initial version
* - 0.31 - no changes
* - 0.32 - no changes
* - 0.33 - no changes
* - 0.34 - reactivated code in imageP96WaitLineData() to recover from
* loosing data
* - 0.35 - no changes
* - 0.36 - removed comment
* - added wDither exchange to imageP9xSetupScanSettings
* - added fnHalftoneDirect1 which provides dithering by using random
* thresholds
* - removed the swapping behaviour for model OP_600 in
* fnP96ColorDirect() according to the Primax 4800 Direct tests
* - changes, due to define renaming
* - removed _ASIC_96001 specific stuff to invert colors
* - 0.37 - removed // comments
* - corrected output of 12bit/pixel
* - 0.38 - added P12 stuff
* - renamed WaitLineData functions to ReadOneImageLine
* - 0.39 - fixed a problem in imageP98003ReadOneImageLine, that causes
* these I/O timeouts...
* - 0.40 - no changes
* - 0.41 - no changes
* - 0.42 - fixed a problem for the 12bit modes fo ASIC9800x based devices
* - changed include names
* .
* <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>
*/
#include "plustek-pp_scan.h"
/************************ local definitions **********************************/
#define _LINE_TIMEOUT (_SECOND * 5 ) /* max 5 second per line ! */
/*************************** local vars **************************************/
static UShort wPreviewScanned = 0;
static ExpXStepDef posScan[5] = {{128, 8}, {96, 12},
{96, 24}, {96, 48}, {96, 96}};
static ExpXStepDef negScan[5] = {{128, 8}, {96, 12},
{96, 24}, {96, 48}, {96, 96}};
static ExpXStepDef nmlScan[4][5] = {
{{160, 10}, {96, 12}, {96, 24}, {96, 48}, {96, 96}}, /* EPP */
{{160, 10}, {128, 16}, {128, 32}, {192, 96}, {192, 96}}, /* SPP */
{{160, 10}, {96, 12}, {96, 24}, {160, 80}, {160, 160}}, /* BPP */
{{160, 10}, {96, 12}, {96, 24}, {96, 48}, {96, 96}} /* ECP */
};
static ThreshDef xferSpeed[4] = {
{0, 3200, 2500}, {0, 1200, 800}, {0, 800, 1250}, {0, 3200, 2500}
};
/*************************** local functions *********************************/
/*.............................................................................
* return the correct DPI-value
* The ASIC 96001/3 models are limited to an optical resolution of 300 Dpi
* so it<69>s necessary to scale in X and Y direction (see scale.c)!
*/
static UShort imageGetPhysDPI( pScanData ps, pImgDef pImgInf, Bool fDpiX )
{
if( _IS_ASIC98(ps->sCaps.AsicID)) {
if (fDpiX) {
if (pImgInf->xyDpi.x > ps->LensInf.rDpiX.wPhyMax)
return ps->LensInf.rDpiX.wPhyMax;
else
return pImgInf->xyDpi.x;
} else {
if (pImgInf->xyDpi.y > ps->LensInf.rDpiY.wPhyMax)
return ps->LensInf.rDpiY.wPhyMax;
else
return pImgInf->xyDpi.y;
}
} else {
if (fDpiX) {
if (pImgInf->wDataType >= COLOR_TRUE24) {
if (pImgInf->xyDpi.x > ps->LensInf.rDpiX.wPhyMax)
return ps->LensInf.rDpiX.wPhyMax;
else
return pImgInf->xyDpi.x;
} else {
if (pImgInf->xyDpi.x > (ps->LensInf.rDpiX.wPhyMax * 2))
return (ps->LensInf.rDpiX.wPhyMax * 2);
else
return pImgInf->xyDpi.x;
}
} else {
if (pImgInf->wDataType >= COLOR_TRUE24 ) {
if (pImgInf->xyDpi.y > (ps->LensInf.rDpiY.wPhyMax / 2))
return (ps->LensInf.rDpiY.wPhyMax / 2);
else
return pImgInf->xyDpi.y;
} else {
if (pImgInf->xyDpi.y > ps->LensInf.rDpiY.wPhyMax)
return ps->LensInf.rDpiY.wPhyMax;
else
return pImgInf->xyDpi.y;
}
}
}
}
/*****************************************************************************
* Sampling stuff for ASIC 98003 *
*****************************************************************************/
static Bool fnEveryLines( pScanData ps )
{
_VAR_NOT_USED( ps );
return _TRUE;
}
static Bool fnSampleLines( pScanData ps )
{
ps->DataInf.wYSum += ps->DataInf.xyAppDpi.y;
if( ps->DataInf.wYSum >= ps->DataInf.xyPhyDpi.y ) {
ps->DataInf.wYSum -= ps->DataInf.xyPhyDpi.y;
return _TRUE;
}
return _FALSE;
}
static Bool fnSamplePreview( pScanData ps )
{
ps->DataInf.wYSum += wPreviewScanned;
if( ps->DataInf.wYSum >= 150 ) {
ps->DataInf.wYSum -= 150;
return _TRUE;
}
return _FALSE;
}
/*****************************************************************************
* Data Processing Routines *
*****************************************************************************/
static Bool fnReadToDriver( pScanData ps )
{
ps->AsicReg.RD_ModeControl = _ModeFifoBSel;
IOReadScannerImageData( ps, ps->Scan.BufPut.blue.bp,
ps->DataInf.dwAsicBytesPerPlane );
ps->AsicReg.RD_ModeControl = _ModeFifoGSel;
IOReadScannerImageData( ps, ps->Scan.BufPut.green.bp,
ps->DataInf.dwAsicBytesPerPlane );
if( ps->Scan.gd_gk.wGreenKeep )
ps->Scan.gd_gk.wGreenKeep--;
else {
ps->Scan.BufPut.green.bp += ps->DataInf.dwAsicBytesPerPlane;
if( ps->Scan.BufPut.green.bp >= ps->Scan.BufEnd.green.bp )
ps->Scan.BufPut.green.bp = ps->Scan.BufBegin.green.bp;
}
ps->AsicReg.RD_ModeControl = _ModeFifoRSel;
IOReadScannerImageData( ps, ps->Scan.BufPut.red.bp,
ps->DataInf.dwAsicBytesPerPlane );
ps->Scan.BufPut.red.bp += ps->DataInf.dwAsicBytesPerPlane;
if( ps->Scan.BufPut.red.bp >= ps->Scan.BufEnd.red.bp )
ps->Scan.BufPut.red.bp = ps->Scan.BufBegin.red.bp;
if( ps->Scan.bd_rk.wRedKeep ) {
ps->Scan.bd_rk.wRedKeep--;
return _FALSE;
} else {
ps->Scan.BufData.green.bp = ps->Scan.BufGet.green.bp;
if( ps->DataInf.dwScanFlag & SCANDEF_ColorBGROrder ) {
ps->Scan.BufData.red.bp = ps->Scan.BufGet.blue.bp;
ps->Scan.BufData.blue.bp = ps->Scan.BufGet.red.bp;
} else {
ps->Scan.BufData.red.bp = ps->Scan.BufGet.red.bp;
ps->Scan.BufData.blue.bp = ps->Scan.BufGet.blue.bp;
}
ps->Scan.BufGet.red.bp += ps->DataInf.dwAsicBytesPerPlane;
ps->Scan.BufGet.green.bp += ps->DataInf.dwAsicBytesPerPlane;
if( ps->Scan.BufGet.red.bp >= ps->Scan.BufEnd.red.bp )
ps->Scan.BufGet.red.bp = ps->Scan.BufBegin.red.bp;
if( ps->Scan.BufGet.green.bp >= ps->Scan.BufEnd.green.bp )
ps->Scan.BufGet.green.bp = ps->Scan.BufBegin.green.bp;
return _TRUE;
}
}
static Bool fnReadOutScanner( pScanData ps )
{
if( ps->Scan.bd_rk.wBlueDiscard ) {
ps->Scan.bd_rk.wBlueDiscard--;
ps->AsicReg.RD_ModeControl = _ModeFifoBSel;
IOReadScannerImageData( ps, ps->Bufs.b1.pReadBuf,
ps->DataInf.dwAsicBytesPerPlane );
if( ps->Scan.gd_gk.wGreenDiscard ) {
ps->Scan.gd_gk.wGreenDiscard--;
ps->AsicReg.RD_ModeControl = _ModeFifoGSel;
IOReadScannerImageData( ps, ps->Bufs.b1.pReadBuf,
ps->DataInf.dwAsicBytesPerPlane);
}
return _FALSE;
} else {
IOReadColorData( ps, ps->Bufs.b1.pReadBuf,
ps->DataInf.dwAsicBytesPerPlane );
return _TRUE;
}
}
/*.............................................................................
* Interpolates the gray data by using averaged the continuous pixels
*/
static void fnP96GrayDirect( pScanData ps, pVoid pBuf, pVoid pImg, ULong bl )
{
pUChar src, dest;
src = (pUChar)pImg;
dest = (pUChar)pBuf;
for (; bl; bl--, src++, dest++ )
*dest = ps->pbMapRed [*src];
}
/*.............................................................................
* This routine used in the condition:
* 1) The data type is B/W or GrayScale.
* 2) The required horizontal resolution doesn't exceed the optic spec.
* 3) The required vertical resolution exceeds the optic spec.
* So, the vertcal lines have to average with previous line to smooth the
* image.
*/
static void fnDataDirect( pScanData ps, pVoid pBuf, pVoid pImg, ULong bl )
{
_VAR_NOT_USED( ps );
memcpy( pBuf, pImg, bl );
}
/*.............................................................................
* According to dither matrix to convert the input gray scale data into
* one-bit data.
*/
static void fnHalftoneDirect0( pScanData ps, pVoid pb, pVoid pImg, ULong bL )
{
pUChar pDither, src, dest;
ULong dw;
src = (pUChar)pImg;
dest = (pUChar)pb;
pDither = &ps->a_bDitherPattern[ps->dwDitherIndex];
for( ; bL; bL--, dest++, pDither -= 8 ) {
for( dw = 8; dw; dw--, src++, pDither++ ) {
if( *src < *pDither ) {
*dest = (*dest << 1) | 0x01;
} else {
*dest <<= 1;
}
}
}
ps->dwDitherIndex = (ps->dwDitherIndex + 8) & 0x3f;
}
/*.............................................................................
* use random generator to make halftoning
*/
static void fnHalftoneDirect1( pScanData ps, pVoid pb, pVoid pImg, ULong bL )
{
pUChar src, dest;
UChar threshold;
ULong dw;
_VAR_NOT_USED( ps );
src = (pUChar)pImg;
dest = (pUChar)pb;
for (; bL; bL--, dest++ ) {
for (dw = 8; dw; dw--, src++ ) {
threshold = (UChar)MiscLongRand();
if (*src < threshold ) {
*dest = (*dest << 1) | 0x01;
} else {
*dest <<= 1;
}
}
}
}
/*.............................................................................
* Merges the color planes to pixels style without enlarge operation.
*/
static void fnP98ColorDirect( pScanData ps, pVoid pb, pVoid pImg, ULong bL )
{
pUChar src;
pRGBByteDef dest;
src = (pUChar)pImg;
dest = (pRGBByteDef)pb;
for ( bL = ps->DataInf.dwAsicPixelsPerPlane; bL; bL--, src++, dest++) {
dest->Red = *src;
dest->Green = src[ps->DataInf.dwAsicPixelsPerPlane];
dest->Blue = src[ps->DataInf.dwAsicPixelsPerPlane*2];
}
}
static void fnP96ColorDirect( pScanData ps, pVoid pb, pVoid pImg, ULong bL )
{
pUChar src;
pRGBByteDef dest;
src = (pUChar)pImg;
dest = (pRGBByteDef)pb;
for ( bL = ps->DataInf.dwAsicPixelsPerPlane; bL; bL--, dest++, src++) {
dest->Red =ps->pbMapRed[*src];
dest->Green=ps->pbMapGreen[src[ps->DataInf.dwAsicPixelsPerPlane]];
dest->Blue =ps->pbMapBlue[src[ps->DataInf.dwAsicPixelsPerPlane*2]];
}
}
/*.............................................................................
* Merges the color planes to pixels style without enlarge operation.
* The scanner returns the pixel data in Motorola-Format, so we have to swap
*/
static void fnP98Color48( pScanData ps, pVoid pb, pVoid pImg, ULong bL )
{
pUShort src;
pRGBUShortDef dest;
register ULong i;
_VAR_NOT_USED( bL );
src = (pUShort)pImg;
dest = (pRGBUShortDef)pb;
for ( i = ps->DataInf.dwAsicPixelsPerPlane; i; i--, src++, dest++) {
dest->Red = *src;
dest->Green = src[ps->DataInf.dwAsicPixelsPerPlane];
dest->Blue = src[ps->DataInf.dwAsicPixelsPerPlane * 2];
}
}
/*.............................................................................
* prepare for scanning
*/
static int imageP98SetupScanSettings( pScanData ps, pScanInfo pInf )
{
UShort brightness;
ULong xAdjust;
DBG( DBG_LOW, "imageP98SetupScanSettings()\n" );
xAdjust = pInf->ImgDef.crArea.x + pInf->ImgDef.crArea.cx;
ps->DataInf.dwScanFlag = pInf->ImgDef.dwFlag;
ps->DataInf.dwVxdFlag = 0;
ps->DataInf.crImage = pInf->ImgDef.crArea;
/* AdjustOriginXByLens
* [NOTE]
* Here we just simply adjust it to double (600 DPI is two times of
* 300 DPI), but if this model is a multi-lens scanner, we should adjust
* it according to different lens.
*/
ps->DataInf.crImage.x <<= 1;
ps->DataInf.xyAppDpi = pInf->ImgDef.xyDpi;
ps->DataInf.siBrightness = pInf->siBrightness;
ps->DataInf.wDither = pInf->wDither;
ps->DataInf.wAppDataType = pInf->ImgDef.wDataType;
ps->GetImageInfo( ps, &pInf->ImgDef );
if (ps->DataInf.dwVxdFlag & _VF_DATATOUSERBUFFER) {
ps->Scan.DataProcess = fnDataDirect;
}
if (ps->DataInf.dwScanFlag & SCANDEF_BmpStyle) {
ps->Scan.lBufferAdjust = -(Long)ps->DataInf.dwAppBytesPerLine;
} else {
ps->Scan.lBufferAdjust = (Long)ps->DataInf.dwAppBytesPerLine;
}
DBG( DBG_LOW, "Scan settings:\n" );
DBG( DBG_LOW, "ImageInfo: (x=%u,y=%u,dx=%u,dy=%u)\n",
ps->DataInf.crImage.x, ps->DataInf.crImage.y,
ps->DataInf.crImage.cx, ps->DataInf.crImage.cy );
/*
* SetBwBrightness
* [NOTE]
*
* 0 _DEF_BW_THRESHOLD 255
* +-------------------------+--------------------------------+
* |<------- Black --------->|<----------- White ------------>|
* So, if user wish to make image darker, the threshold value should be
* higher than _defBwThreshold, otherwise it should lower than the
* _DefBwThreshold.
* Darker = _DefBwThreshold + White * Input / 127;
* Input < 0, and White = 255 - _DefBwThreshold, so
* = _DefBwThreshold - (255 - _DefBwThreshold) * Input / 127;
* The brighter is the same idea.
*
* CHECK: it seems that the brightness only works for the binary mode !
*/
if( ps->DataInf.wPhyDataType != COLOR_BW ) {/* if not line art */
ps->wBrightness = pInf->siBrightness; /* use internal tables for */
ps->wContrast = pInf->siContrast; /* brightness and contrast */
pInf->siBrightness = 0; /* don't use asic for threshold */
}
/* CHECK: We have now two methods for setting the brightness...
*/
DBG( DBG_LOW, "brightness = %i\n", pInf->siBrightness );
if (ps->DataInf.siBrightness < 0) {
brightness = (UShort)(_DEF_BW_THRESHOLD -
(255 - _DEF_BW_THRESHOLD) * ps->DataInf.siBrightness /127);
} else {
brightness = (UShort)(_DEF_BW_THRESHOLD -
_DEF_BW_THRESHOLD * ps->DataInf.siBrightness /127);
}
ps->AsicReg.RD_ThresholdControl = brightness;
DBG( DBG_LOW, "1. brightness = %i\n", brightness );
if( ps->DataInf.siBrightness >= 0 ) {
brightness = (short)((long)(-(255 - _DEF_BW_THRESHOLD) *
ps->DataInf.siBrightness) / 127 + _DEF_BW_THRESHOLD);
} else {
brightness = (short)((long)(_DEF_BW_THRESHOLD *
ps->DataInf.siBrightness) / 127 + _DEF_BW_THRESHOLD);
}
brightness = (brightness ^ 0xff) & 0xff;
if( _ASIC_IS_98003 == ps->sCaps.AsicID ) {
ps->AsicReg.RD_ThresholdControl = brightness;
DBG( DBG_LOW, "2. brightness = %i\n", brightness );
}
ps->DataInf.pCurrentBuffer = ps->pScanBuffer1;
return _OK;
}
/*.............................................................................
*
*/
static void imageP98DoCopyBuffer( pScanData ps, pUChar pImage )
{
memcpy( ps->pFilterBuf, pImage, ps->DataInf.dwAsicBytesPerPlane );
ps->pFilterBuf += 5120;
if (ps->pFilterBuf >= ps->pEndBuf)
ps->pFilterBuf = ps->pProcessingBuf;
}
/*.............................................................................
*
*/
static Bool imageP98CopyToFilterBuffer( pScanData ps, pUChar pImage )
{
if (ps->fDoFilter) {
if (ps->fFilterFirstLine) {
imageP98DoCopyBuffer( ps, pImage );
imageP98DoCopyBuffer( ps, pImage );
ps->dwLinesFilter--;
return _FALSE;
} else {
imageP98DoCopyBuffer( ps, pImage );
if ((ps->dwLinesFilter--) == 0)
imageP98DoCopyBuffer( ps, pImage);
}
}
return _TRUE;
}
/*.............................................................................
*
*/
static void imageP98UnSharpCompare( pScanData ps, Byte Center,
Byte Neighbour, pLong pdwNewValue )
{
Byte b;
b = (Center >= Neighbour) ? Center - Neighbour : Neighbour - Center ;
if (b > ps->bOffsetFilter) {
*pdwNewValue -= (Long)Neighbour;
ps->dwDivFilter--;
}
}
/*.............................................................................
*
*/
static void imageP98DoFilter( pScanData ps, pUChar pPut )
{
ULong dw;
Long dwNewValue;
if (ps->fDoFilter && (ps->DataInf.xyAppDpi.x) >= 600UL) {
/* DoUnsharpMask(); */
for (dw = 0; dw < ps->DataInf.dwAsicBytesPerPlane - 2; dw++, pPut++) {
ps->dwDivFilter = ps->dwMul;
dwNewValue = ((ULong)ps->pGet2[dw+1]) * ps->dwMul;
imageP98UnSharpCompare( ps, ps->pGet2[dw+1], ps->pGet1[dw], &dwNewValue);
imageP98UnSharpCompare( ps, ps->pGet2[dw+1], ps->pGet1[dw+1], &dwNewValue);
imageP98UnSharpCompare( ps, ps->pGet2[dw+1], ps->pGet1[dw+2], &dwNewValue);
imageP98UnSharpCompare( ps, ps->pGet2[dw+1], ps->pGet2[dw], &dwNewValue);
imageP98UnSharpCompare( ps, ps->pGet2[dw+1], ps->pGet2[dw+2], &dwNewValue);
imageP98UnSharpCompare( ps, ps->pGet2[dw+1], ps->pGet3[dw], &dwNewValue);
imageP98UnSharpCompare( ps, ps->pGet2[dw+1], ps->pGet3[dw+1], &dwNewValue);
imageP98UnSharpCompare( ps, ps->pGet2[dw+1], ps->pGet3[dw+2], &dwNewValue);
if( dwNewValue > 0 ) {
if((dwNewValue /= ps->dwDivFilter) < 255) {
*pPut = (Byte) dwNewValue;
} else {
*pPut = 255;
}
} else {
*pPut = 0;
}
}
pPut = ps->pGet1;
ps->pGet1 = ps->pGet2;
ps->pGet2 = ps->pGet3;
ps->pGet3 = pPut;
}
}
/*.............................................................................
*
*/
static Bool imageP98DataIsReady( pScanData ps )
{
Byte b;
ps->Scan.fMotorBackward = _FALSE;
ps->bMoveDataOutFlag = _DataAfterRefreshState;
b = (ps->DataInf.wPhyDataType >= COLOR_TRUE24) ?
_BLUE_DATA_READY : _GREEN_DATA_READY;
while( _TRUE ) {
ps->dwColorRunIndex ++;
if(ps->pColorRunTable[ps->dwColorRunIndex] & b)
break;
}
if (b == _GREEN_DATA_READY) {
ps->AsicReg.RD_ModeControl = _ModeFifoGSel;
IOReadScannerImageData( ps, ps->DataInf.pCurrentBuffer,
ps->DataInf.dwAsicBytesPerPlane );
imageP98CopyToFilterBuffer( ps, ps->DataInf.pCurrentBuffer );
} else {
/* ReadColorImageData() */
if( ps->DataInf.dwScanFlag & SCANDEF_ColorBGROrder ) {
ps->AsicReg.RD_ModeControl = _ModeFifoRSel;
IOReadScannerImageData( ps, ps->pScanBuffer1 +
ps->DataInf.dwAsicBytesPerPlane * 2,
ps->DataInf.dwAsicBytesPerPlane );
ps->AsicReg.RD_ModeControl = _ModeFifoGSel;
IOReadScannerImageData( ps, ps->pScanBuffer1 +
ps->DataInf.dwAsicBytesPerPlane,
ps->DataInf.dwAsicBytesPerPlane );
ps->AsicReg.RD_ModeControl = _ModeFifoBSel;
IOReadScannerImageData( ps, ps->pScanBuffer1,
ps->DataInf.dwAsicBytesPerPlane );
} else {
IOReadColorData( ps, ps->pScanBuffer1,
ps->DataInf.dwAsicBytesPerPlane );
}
}
if (ps->fFilterFirstLine) {
ps->fFilterFirstLine = _FALSE;
return _TRUE;
}
imageP98DoFilter( ps, ps->DataInf.pCurrentBuffer );
(*ps->Scan.DataProcess)( ps, ps->Scan.bp.pMonoBuf,
ps->DataInf.pCurrentBuffer,
ps->DataInf.dwAppPhyBytesPerLine );
return _TRUE;
}
/*.............................................................................
* here we wait for one data-line
*/
static Bool imageP98001ReadOneImageLine( pScanData ps )
{
ULong dwFifoCounter;
TimerDef timer;
MiscStartTimer( &timer, _LINE_TIMEOUT );
do {
ps->Scan.bNowScanState = IOGetScanState( ps, _FALSE );
dwFifoCounter = IOReadFifoLength( ps );
if (!(ps->Scan.bNowScanState & _SCANSTATE_STOP) &&
(dwFifoCounter < ps->dwMaxReadFifoData)) {
if( ps->Scan.bOldScanState != ps->Scan.bNowScanState )
ps->UpdateDataCurrentReadLine( ps );
if( dwFifoCounter >= ps->Scan.dwMinReadFifo )
return imageP98DataIsReady( ps );
} else { /* ScanStateIsStop */
if (dwFifoCounter >= ps->dwSizeMustProcess)
return imageP98DataIsReady( ps );
ps->UpdateDataCurrentReadLine( ps );
if( dwFifoCounter >= ps->Scan.dwMinReadFifo )
return imageP98DataIsReady( ps );
}
_DODELAY(10); /* delay 10 ms */
} while (!MiscCheckTimer( &timer ));
DBG( DBG_HIGH, "Timeout - Scanner malfunction !!\n" );
MotorToHomePosition(ps);
/* timed out, scanner malfunction */
return _FALSE;
}
/*.............................................................................
* calculate the image properties according to the scanmode
*/
static void imageP98GetInfo( pScanData ps, pImgDef pImgInf )
{
DBG( DBG_LOW, "imageP98GetInfo()\n" );
ps->DataInf.xyPhyDpi.x = imageGetPhysDPI( ps, pImgInf, _TRUE );
ps->DataInf.xyPhyDpi.y = imageGetPhysDPI( ps, pImgInf, _FALSE );
DBG( DBG_LOW, "xyPhyDpi.x = %u, xyPhyDpi.y = %u\n",
ps->DataInf.xyPhyDpi.x, ps->DataInf.xyPhyDpi.y );
DBG( DBG_LOW, "crArea.x = %u, crArea.y = %u\n",
pImgInf->crArea.x, pImgInf->crArea.y );
DBG( DBG_LOW, "crArea.cx = %u, crArea.cy = %u\n",
pImgInf->crArea.cx, pImgInf->crArea.cy );
ps->DataInf.XYRatio = (double)ps->DataInf.xyPhyDpi.y/
(double)ps->DataInf.xyPhyDpi.x;
ps->DataInf.dwAppLinesPerArea = (ULong)pImgInf->crArea.cy *
pImgInf->xyDpi.y / _MEASURE_BASE;
ps->DataInf.dwAppPixelsPerLine = (ULong)pImgInf->crArea.cx *
pImgInf->xyDpi.x / _MEASURE_BASE;
ps->DataInf.dwPhysBytesPerLine = (ULong)pImgInf->crArea.cx *
ps->DataInf.xyPhyDpi.x / _MEASURE_BASE;
if( pImgInf->wDataType <= COLOR_HALFTONE ) {
ps->DataInf.dwAsicPixelsPerPlane = (ps->DataInf.dwAppPixelsPerLine+7UL)&
0xfffffff8UL;
ps->DataInf.dwAppPhyBytesPerLine =
ps->DataInf.dwAppBytesPerLine =
ps->DataInf.dwAsicBytesPerLine =
ps->DataInf.dwAsicBytesPerPlane = ps->DataInf.dwAsicPixelsPerPlane>>3;
} else {
ps->DataInf.dwAsicBytesPerPlane =
ps->DataInf.dwAsicPixelsPerPlane = ps->DataInf.dwAppPixelsPerLine;
}
if( COLOR_TRUE48 == pImgInf->wDataType ) {
ps->DataInf.dwAsicBytesPerPlane *= 2;
}
switch( pImgInf->wDataType ) {
case COLOR_BW:
ps->DataInf.dwVxdFlag |= _VF_DATATOUSERBUFFER;
ps->DataInf.wPhyDataType = COLOR_BW;
ps->Shade.bIntermediate = _ScanMode_Mono;
break;
case COLOR_HALFTONE:
if( ps->DataInf.wDither == 2 ) {
ps->Scan.DataProcess = fnHalftoneDirect1;
} else {
ps->Scan.DataProcess = fnHalftoneDirect0;
}
/*
* CHANGE: it seems, that we have to use the same settings as for 256GRAY
*/
ps->DataInf.dwAsicBytesPerPlane =
ps->DataInf.dwAsicPixelsPerPlane = ps->DataInf.dwAppPixelsPerLine;
ps->DataInf.wPhyDataType = COLOR_256GRAY;
ps->Shade.bIntermediate = _ScanMode_Mono;
break;
case COLOR_256GRAY:
ps->DataInf.dwVxdFlag |= _VF_DATATOUSERBUFFER;
ps->DataInf.dwAsicBytesPerLine =
ps->DataInf.dwAppPhyBytesPerLine = ps->DataInf.dwAppPixelsPerLine;
ps->DataInf.wPhyDataType = COLOR_256GRAY;
ps->Shade.bIntermediate = _ScanMode_Mono;
break;
case COLOR_TRUE24:
ps->Scan.DataProcess = fnP98ColorDirect;
ps->DataInf.dwAsicBytesPerLine =
ps->DataInf.dwAppPhyBytesPerLine = ps->DataInf.dwAppPixelsPerLine * 3;
ps->DataInf.wPhyDataType = COLOR_TRUE24;
ps->Shade.bIntermediate = _ScanMode_Color;
break;
case COLOR_TRUE48:
ps->Scan.DataProcess = fnP98Color48;
ps->DataInf.dwAsicBytesPerLine =
ps->DataInf.dwAppPhyBytesPerLine = ps->DataInf.dwAppPixelsPerLine * 6;
ps->DataInf.wPhyDataType = COLOR_TRUE48;
ps->Shade.bIntermediate = _ScanMode_Color;
break;
}
if (pImgInf->dwFlag & SCANDEF_BoundaryDWORD) {
ps->DataInf.dwAppBytesPerLine = (ps->DataInf.dwAppPhyBytesPerLine + 3) &
0xfffffffc;
} else {
if (pImgInf->dwFlag & SCANDEF_BoundaryWORD) {
ps->DataInf.dwAppBytesPerLine = (ps->DataInf.dwAppPhyBytesPerLine + 1) &
0xfffffffe;
} else {
ps->DataInf.dwAppBytesPerLine = ps->DataInf.dwAppPhyBytesPerLine;
}
}
DBG( DBG_LOW, "AppLinesPerArea = %lu\n", ps->DataInf.dwAppLinesPerArea );
DBG( DBG_LOW, "AppPixelsPerLine = %lu\n", ps->DataInf.dwAppPixelsPerLine );
DBG( DBG_LOW, "AppPhyBytesPerLine = %lu\n", ps->DataInf.dwAppPhyBytesPerLine );
DBG( DBG_LOW, "AppBytesPerLine = %lu\n", ps->DataInf.dwAppBytesPerLine );
DBG( DBG_LOW, "AsicPixelsPerPlane = %lu\n", ps->DataInf.dwAsicPixelsPerPlane );
DBG( DBG_LOW, "AsicBytesPerPlane = %lu\n", ps->DataInf.dwAsicBytesPerPlane );
DBG( DBG_LOW, "AsicBytesPerLine = %lu\n", ps->DataInf.dwAsicBytesPerLine );
DBG( DBG_LOW, "Physical Bytes = %lu\n", ps->DataInf.dwPhysBytesPerLine );
}
/*.............................................................................
*
*/
static void imageP96GetInfo( pScanData ps, pImgDef pImgInf )
{
DBG( DBG_LOW, "imageP96GetInfo()\n" );
ps->DataInf.xyPhyDpi.x = imageGetPhysDPI( ps, pImgInf, _TRUE );
ps->DataInf.xyPhyDpi.y = imageGetPhysDPI( ps, pImgInf, _FALSE );
DBG( DBG_LOW, "xyPhyDpi.x = %u, xyPhyDpi.y = %u\n",
ps->DataInf.xyPhyDpi.x, ps->DataInf.xyPhyDpi.y );
DBG( DBG_LOW, "crArea.x = %u, crArea.y = %u\n",
pImgInf->crArea.x, pImgInf->crArea.y );
DBG( DBG_LOW, "crArea.cx = %u, crArea.cy = %u\n",
pImgInf->crArea.cx, pImgInf->crArea.cy );
ps->DataInf.XYRatio = (double)ps->DataInf.xyPhyDpi.y/
(double)ps->DataInf.xyPhyDpi.x;
DBG( DBG_LOW, "xyDpi.x = %u, xyDpi.y = %u\n",
pImgInf->xyDpi.x, pImgInf->xyDpi.y );
ps->DataInf.dwAppLinesPerArea = (ULong)pImgInf->crArea.cy *
pImgInf->xyDpi.y / _MEASURE_BASE;
ps->DataInf.dwAsicBytesPerPlane =
ps->DataInf.dwAsicPixelsPerPlane = (ULong)ps->DataInf.xyPhyDpi.x *
pImgInf->crArea.cx / _MEASURE_BASE;
ps->DataInf.dwAppPixelsPerLine = (ULong)pImgInf->crArea.cx *
pImgInf->xyDpi.x / _MEASURE_BASE;
ps->DataInf.dwPhysBytesPerLine = (ULong)pImgInf->crArea.cx *
ps->DataInf.xyPhyDpi.x / _MEASURE_BASE;
ps->DataInf.wPhyDataType = ps->DataInf.wAppDataType;
switch( pImgInf->wDataType ) {
case COLOR_BW:
ps->DataInf.dwAsicBytesPerPlane =
(ps->DataInf.dwAsicPixelsPerPlane + 7) >> 3;
ps->DataInf.dwAppPhyBytesPerLine =
(ps->DataInf.dwAppPixelsPerLine + 7) >> 3;
ps->DataInf.dwVxdFlag |= _VF_DATATOUSERBUFFER;
ps->Scan.DataProcess = fnDataDirect;
break;
case COLOR_HALFTONE:
ps->DataInf.dwAppPhyBytesPerLine =
(ps->DataInf.dwAsicPixelsPerPlane + 7) >> 3;
if( ps->DataInf.wDither == 2 ) {
ps->Scan.DataProcess = fnHalftoneDirect1;
} else {
ps->Scan.DataProcess = fnHalftoneDirect0;
}
ps->DataInf.wPhyDataType = COLOR_256GRAY;
break;
case COLOR_256GRAY:
ps->DataInf.dwAppPhyBytesPerLine = ps->DataInf.dwAppPixelsPerLine;
ps->Scan.DataProcess = fnP96GrayDirect;
break;
case COLOR_TRUE24:
#ifdef _A3I_EN
ps->Scan.DataProcess = fnP98ColorDirect;
#else
ps->Scan.DataProcess = fnP96ColorDirect;
#endif
ps->DataInf.dwAppPhyBytesPerLine = ps->DataInf.dwAppPixelsPerLine * 3;
}
if( pImgInf->dwFlag & SCANDEF_BoundaryDWORD ) {
ps->DataInf.dwAppBytesPerLine =
(ps->DataInf.dwAppPhyBytesPerLine + 3) & 0xfffffffc;
} else {
if ( pImgInf->dwFlag & SCANDEF_BoundaryWORD ) {
ps->DataInf.dwAppBytesPerLine =
(ps->DataInf.dwAppPhyBytesPerLine + 1) & 0xfffffffe;
} else {
ps->DataInf.dwAppBytesPerLine = ps->DataInf.dwAppPhyBytesPerLine;
}
}
if (ps->DataInf.wPhyDataType == COLOR_TRUE24)
ps->DataInf.dwAsicBytesPerLine = ps->DataInf.dwAsicBytesPerPlane * 3;
else
ps->DataInf.dwAsicBytesPerLine = ps->DataInf.dwAsicBytesPerPlane;
/* WORK: AsicBytesPerLine only used for ASIC_98001 based scanners - try to remove
** that, also try to remove redundant info
*/
DBG( DBG_LOW, "AppLinesPerArea = %lu\n", ps->DataInf.dwAppLinesPerArea );
DBG( DBG_LOW, "AppPixelsPerLine = %lu\n", ps->DataInf.dwAppPixelsPerLine );
DBG( DBG_LOW, "AppPhyBytesPerLine = %lu\n", ps->DataInf.dwAppPhyBytesPerLine );
DBG( DBG_LOW, "AppBytesPerLine = %lu\n", ps->DataInf.dwAppBytesPerLine );
DBG( DBG_LOW, "AsicPixelsPerPlane = %lu\n", ps->DataInf.dwAsicPixelsPerPlane );
DBG( DBG_LOW, "AsicBytesPerPlane = %lu\n", ps->DataInf.dwAsicBytesPerPlane );
DBG( DBG_LOW, "AsicBytesPerLine = %lu\n", ps->DataInf.dwAsicBytesPerLine );
DBG( DBG_LOW, "Physical Bytes = %lu\n", ps->DataInf.dwPhysBytesPerLine );
}
/*.............................................................................
* here we wait for one data-line
*/
static Bool imageP96ReadOneImageLine( pScanData ps )
{
Bool result = _FALSE;
Byte bData, bFifoCount;
TimerDef timer;
MiscStartTimer( &timer, _LINE_TIMEOUT);
do {
bFifoCount = IODataRegisterFromScanner( ps, ps->RegFifoOffset );
/* CHECK ps->bMoveDataOutFlag will never be set to _DataFromStopState !!!*/
#if 1
if ((bFifoCount < ps->bMinReadFifo) &&
(ps->bMoveDataOutFlag == _DataFromStopState)) {
bData = IOGetScanState( ps, _FALSE);
if (!(bData & _SCANSTATE_STOP)) {
if (bData < ps->bCurrentLineCount)
bData += _NUMBER_OF_SCANSTEPS;
if ((bData - ps->bCurrentLineCount) < _SCANSTATE_BYTES)
continue;
}
ps->bMoveDataOutFlag = _DataAfterRefreshState;
}
#endif
/*
// HEINER:A3I
// if( ps->bMoveDataOutFlag != _DataFromStopState )
// ps->UpdateDataCurrentReadLine( ps );
*/
if( bFifoCount >= ps->bMinReadFifo ) {
/* data is ready */
for (; !(*ps->pCurrentColorRunTable &
(ps->RedDataReady | ps->GreenDataReady | _BLUE_DATA_READY));
ps->pCurrentColorRunTable++);
#ifdef DEBUG
if( ps->pCurrentColorRunTable >
(ps->pColorRunTable+ps->BufferForColorRunTable))
DBG( DBG_LOW, "WARNING: pCurrentColorRunTab>pColorRunTable\n");
#endif
if (ps->DataInf.wPhyDataType == COLOR_TRUE24) {
/* read color planes (either R/G/B or R/B/G sequence that
* depends on COLOR CCD, see below
*/
if (*ps->pCurrentColorRunTable & ps->b1stColor) {
*ps->pCurrentColorRunTable &= ps->b1stMask;
IOReadScannerImageData (ps, ps->pPutBufR,
ps->DataInf.dwAsicBytesPerPlane);
ps->pPutBufR += ps->BufferSizePerModel;
if (ps->pPutBufR == ps->pEndBufR)
ps->pPutBufR = ps->pPrescan16;
} else
if (*ps->pCurrentColorRunTable & ps->b2ndColor) {
*ps->pCurrentColorRunTable &= ps->b2ndMask;
IOReadScannerImageData( ps, ps->pPutBufG,
ps->DataInf.dwAsicBytesPerPlane);
ps->pPutBufG += ps->BufferSizePerModel;
if (ps->pPutBufG == ps->pEndBufG)
ps->pPutBufG = ps->pPrescan8;
} else {
*ps->pCurrentColorRunTable &= ps->b3rdMask;
ps->pCurrentColorRunTable++; /* processed this step */
/* according to CCD type & image placement method to
* read third color into corresponding location.
* SONY CCD: Red, Green and Blue.
* TOSHIBA CCD: Red, Blue and Green.
* SCANDEF_BmpStyle: Blue, Green and Red, Otherwise
* Red, Green and Blue.
*/
if (ps->b3rdColor & ps->GreenDataReady) {
/* Green always in middle */
IOReadScannerImageData (ps,
ps->DataInf.pCurrentBuffer +
ps->DataInf.dwAsicBytesPerPlane,
ps->DataInf.dwAsicBytesPerPlane);
} else {
/* Blue depends the request style from caller */
if (ps->DataInf.dwScanFlag & SCANDEF_BmpStyle) {
/* BMP style, blue is the first one */
IOReadScannerImageData (ps,
ps->DataInf.pCurrentBuffer,
ps->DataInf.dwAsicBytesPerPlane);
} else {
/* Blue is the last one */
IOReadScannerImageData (ps, ps->DataInf.pCurrentBuffer +
ps->DataInf.dwAsicBytesPerPlane * 2,
ps->DataInf.dwAsicBytesPerPlane);
}
}
/* reassemble 3 color lines for separated RGB value */
if (ps->DataInf.dwScanFlag & SCANDEF_BmpStyle) {
/* BMP style, red is last one */
memcpy( ps->DataInf.pCurrentBuffer +
ps->DataInf.dwAsicBytesPerPlane * 2,
ps->pGetBufR, ps->DataInf.dwAsicBytesPerPlane);
} else {
/* Red is first one */
memcpy( ps->DataInf.pCurrentBuffer,
ps->pGetBufR, ps->DataInf.dwAsicBytesPerPlane );
}
if (ps->b2ndColor & ps->GreenDataReady) {
/* Green always in middle */
memcpy( ps->DataInf.pCurrentBuffer +
ps->DataInf.dwAsicBytesPerPlane,
ps->pGetBufG, ps->DataInf.dwAsicBytesPerPlane);
} else {
/* Blue depends the request style from caller */
if (ps->DataInf.dwScanFlag & SCANDEF_BmpStyle) {
/* BMP style, blue is the first one */
memcpy( ps->DataInf.pCurrentBuffer,
ps->pGetBufG,
ps->DataInf.dwAsicBytesPerPlane);
} else {
/* BMP style, blue is the last one */
memcpy( ps->DataInf.pCurrentBuffer +
ps->DataInf.dwAsicBytesPerPlane * 2,
ps->pGetBufG,
ps->DataInf.dwAsicBytesPerPlane );
}
}
/* Adjust the get pointers */
ps->pGetBufR += ps->BufferSizePerModel;
ps->pGetBufG += ps->BufferSizePerModel;
if (ps->pGetBufR == ps->pEndBufR)
ps->pGetBufR = ps->pPrescan16;
if (ps->pGetBufG == ps->pEndBufG)
ps->pGetBufG = ps->pPrescan8;
result = _TRUE; /* Line data in buffer */
break;
}
/* reset timer for new 10-second interval */
MiscStartTimer( &timer, (10 * _SECOND));
} else {
/* Gray Image */
*ps->pCurrentColorRunTable &= 0xf0; /* leave high nibble for debug */
ps->pCurrentColorRunTable++; /* this step has been processed */
IOReadScannerImageData( ps, ps->DataInf.pCurrentBuffer,
ps->DataInf.dwAsicBytesPerPlane );
result = _TRUE;
break;
}
}
/* HEINER:A3I */
if( ps->bMoveDataOutFlag != _DataFromStopState )
ps->UpdateDataCurrentReadLine( ps );
} while (!MiscCheckTimer( &timer));
if( _TRUE == result ) {
(*ps->Scan.DataProcess)( ps, ps->Scan.bp.pMonoBuf,
ps->DataInf.pCurrentBuffer,
ps->DataInf.dwAppPhyBytesPerLine );
return _TRUE;
}
DBG( DBG_HIGH, "Timeout - Scanner malfunction !!\n" );
MotorToHomePosition(ps);
return _FALSE;
}
/*.............................................................................
* prepare for scanning
*/
static int imageP96SetupScanSettings( pScanData ps, pScanInfo pInf )
{
DBG( DBG_LOW, "imageSetupP96ScanSettings()\n" );
ps->DataInf.dwVxdFlag = 0;
if (pInf->ImgDef.dwFlag & SCANDEF_BuildBwMap)
ps->DataInf.dwVxdFlag |= _VF_BUILDMAP;
ps->DataInf.dwScanFlag = pInf->ImgDef.dwFlag;
ps->DataInf.crImage = pInf->ImgDef.crArea;
/* scale according to DPI */
ps->DataInf.crImage.x *= ps->PhysicalDpi / _MEASURE_BASE;
ps->DataInf.crImage.cx *= ps->PhysicalDpi / _MEASURE_BASE;
if( ps->DataInf.dwScanFlag & SCANDEF_TPA ) {
ps->DataInf.crImage.x += _Transparency48OriginOffsetX;
ps->DataInf.crImage.y += _Transparency48OriginOffsetY;
}
ps->DataInf.xyAppDpi = pInf->ImgDef.xyDpi;
ps->DataInf.wAppDataType = pInf->ImgDef.wDataType;
ps->DataInf.wDither = pInf->wDither;
ps->GetImageInfo( ps, &pInf->ImgDef );
/* try to get brightness to work */
if (ps->DataInf.wPhyDataType != COLOR_BW) { /* if not line art */
ps->wBrightness = pInf->siBrightness; /* use internal tables for */
ps->wContrast = pInf->siContrast; /* brightness and contrast */
pInf->siBrightness = 0; /* don't use asic for threshold */
}
ps->DataInf.siBrightness = pInf->siBrightness;
if (ps->DataInf.dwScanFlag & SCANDEF_BmpStyle)
ps->Scan.lBufferAdjust = -(Long)ps->DataInf.dwAppBytesPerLine;
else
ps->Scan.lBufferAdjust = (Long)ps->DataInf.dwAppBytesPerLine;
if (ps->DataInf.siBrightness < 0)
ps->DataInf.siBrightness = 255 - (_DEF_BW_THRESHOLD *
ps->DataInf.siBrightness / 127 + _DEF_BW_THRESHOLD);
else
ps->DataInf.siBrightness = 255 - ((255 - _DEF_BW_THRESHOLD) *
ps->DataInf.siBrightness / 127 + _DEF_BW_THRESHOLD);
ps->AsicReg.RD_ThresholdControl = (Byte)ps->DataInf.siBrightness;
ps->DataInf.pCurrentBuffer = ps->pScanBuffer1;
return _OK;
}
/*.............................................................................
*
*/
static Bool imageP98003DataIsReady( pScanData ps )
{
pUChar pb;
if( ps->Scan.bDiscardAll ) {
ps->Scan.bDiscardAll--;
if( ps->DataInf.wPhyDataType <= COLOR_256GRAY ) {
ps->AsicReg.RD_ModeControl = _ModeFifoGSel;
IOReadScannerImageData( ps, ps->Bufs.b1.pReadBuf,
ps->DataInf.dwAsicBytesPerPlane );
} else {
IOReadColorData( ps, ps->Bufs.b1.pReadBuf,
ps->DataInf.dwAsicBytesPerPlane );
}
return _FALSE;
}
if( ps->DataInf.wPhyDataType <= COLOR_256GRAY ) {
ps->AsicReg.RD_ModeControl = _ModeFifoGSel;
pb = ps->Scan.bp.pMonoBuf;
/* use a larger buffer during halftone reads...*/
if( ps->DataInf.wAppDataType == COLOR_HALFTONE )
pb = ps->Scan.BufPut.red.bp;
IOReadScannerImageData( ps, pb, ps->DataInf.dwAsicBytesPerPlane );
} else {
if( !ps->Scan.DataRead( ps )) {
return _FALSE;
}
}
if( ps->Scan.DoSample( ps )) {
if( ps->Scan.dwLinesToRead == 1 &&
!(IOGetScanState( ps, _TRUE ) & _SCANSTATE_STOP))
IORegisterToScanner( ps, ps->RegRefreshScanState );
/* direct is done here without copying...*/
if( fnDataDirect != ps->Scan.DataProcess ) {
(*ps->Scan.DataProcess)(ps, (pVoid)(ps->Scan.bp.pMonoBuf ),
(pVoid)(ps->Scan.BufPut.red.bp),
ps->DataInf.dwAppPhyBytesPerLine);
}
return _TRUE;
}
return _FALSE;
}
/*.............................................................................
*
*/
static Bool imageP98003ReadOneImageLine( pScanData ps )
{
Byte b, state;
TimerDef timer, t2;
MiscStartTimer( &timer, _LINE_TIMEOUT );
MiscStartTimer( &t2, _SECOND*2 );
do {
state = IOGetScanState( ps, _TRUE );
ps->Scan.bNowScanState = (state & _SCANSTATE_MASK);
if( state & _SCANSTATE_STOP ) {
MotorP98003ModuleForwardBackward( ps );
if( IOReadFifoLength( ps ) >= ps->Scan.dwMinReadFifo )
if( imageP98003DataIsReady( ps ))
return _TRUE;
} else {
ps->Scan.bModuleState = _MotorInNormalState;
b = ps->Scan.bNowScanState - ps->Scan.bOldScanState;
if((char) b < 0)
b += _NUMBER_OF_SCANSTEPS;
if( b >= ps->Scan.bRefresh ) {
IORegisterToScanner( ps, ps->RegRefreshScanState );
ps->Scan.bOldScanState = IOGetScanState( ps, _TRUE );
ps->Scan.bOldScanState &= _SCANSTATE_MASK;
}
if( IOReadFifoLength( ps ) >= ps->Scan.dwMaxReadFifo ) {
if( imageP98003DataIsReady( ps ))
return _TRUE;
} else {
b = ps->Scan.bNowScanState - ps->Scan.bOldScanState;
if((char) b < 0)
b += _NUMBER_OF_SCANSTEPS;
if( b >= ps->Scan.bRefresh ) {
IORegisterToScanner( ps, ps->RegRefreshScanState );
ps->Scan.bOldScanState = IOGetScanState( ps, _TRUE );
ps->Scan.bOldScanState &= _SCANSTATE_MASK;
}
if( IOReadFifoLength( ps ) >= ps->Scan.dwMinReadFifo ) {
if( imageP98003DataIsReady( ps ))
return _TRUE;
}
}
}
_DODELAY(5); /* delay 5 ms */
} while( !MiscCheckTimer( &timer ));
#ifdef __KERNEL__
_PRINT(
#else
DBG( DBG_HIGH,
#endif
"Timeout - Scanner malfunction !!\n" );
MotorToHomePosition(ps);
/* timed out, scanner malfunction */
return _FALSE;
}
/*.............................................................................
*
*/
static void imageP98003SetupScanStateVariables( pScanData ps, ULong index )
{
DataType var;
ps->Scan.dpiIdx = index;
if(!(ps->DataInf.dwScanFlag & SCANDEF_TPA)) {
if(((ps->IO.portMode == _PORT_BIDI) ||
(ps->IO.portMode == _PORT_SPP)) &&
(ps->DataInf.wPhyDataType > COLOR_TRUE24) &&
(ps->DataInf.xyAppDpi.y >= 600)) {
ps->Shade.wExposure = nmlScan[ps->IO.portMode][index].exposureTime;
ps->Shade.wXStep = nmlScan[ps->IO.portMode][index].xStepTime;
} else {
ps->Shade.wExposure = nmlScan[_PORT_EPP][index].exposureTime;
ps->Shade.wXStep = nmlScan[_PORT_EPP][index].xStepTime;
}
if( ps->Shade.bIntermediate & _ScanMode_AverageOut ) {
ps->Shade.wExposure >>= 1;
ps->Shade.wXStep >>= 1;
}
} else {
if( ps->DataInf.dwScanFlag & SCANDEF_Transparency ) {
ps->Shade.wExposure = posScan[index].exposureTime;
ps->Shade.wXStep = posScan[index].xStepTime;
} else {
ps->Shade.wExposure = ps->Scan.negScan[index].exposureTime;
ps->Shade.wXStep = ps->Scan.negScan[index].xStepTime;
}
}
ps->Scan.dwInterlace = 0;
ps->Scan.dwInterval = 1;
if( ps->DataInf.wPhyDataType == COLOR_BW )
var.dwValue = xferSpeed[ps->IO.portMode].thresholdBW;
else {
if( ps->DataInf.wPhyDataType == COLOR_256GRAY )
var.dwValue = xferSpeed[ps->IO.portMode].thresholdGray;
else
var.dwValue = xferSpeed[ps->IO.portMode].thresholdColor;
}
/* for small size/descreen */
if((ps->DataInf.xyAppDpi.y >= 300) && var.dwValue &&
(ps->DataInf.dwAsicBytesPerPlane <= var.dwValue)) {
ps->Scan.dwInterval <<= 1;
}
if( var.dwValue && ps->DataInf.dwAsicBytesPerPlane > var.dwValue ) {
if((var.dwValue << 1) > ps->DataInf.dwAsicBytesPerPlane)
ps->Scan.dwInterval <<= 1;
else
if((var.dwValue << 2) > ps->DataInf.dwAsicBytesPerPlane)
ps->Scan.dwInterval <<= 2;
else
ps->Scan.dwInterval <<= 3;
}
/* 48 bit/600 dpi/Bpp mode will scan failed */
if(((ps->IO.portMode == _PORT_BIDI) ||
(ps->IO.portMode == _PORT_SPP)) &&
(ps->DataInf.wPhyDataType > COLOR_TRUE24) &&
(ps->DataInf.xyAppDpi.y >= 600)) {
ps->Scan.dwInterval <<= 1;
}
if( ps->DataInf.wPhyDataType >= COLOR_TRUE24 ) {
if( ps->DataInf.xyPhyDpi.y > 75U ) {
if( ps->Device.f0_8_16 ) {
ps->Scan.gd_gk.wGreenDiscard = ps->DataInf.xyPhyDpi.y / 75U;
} else {
ps->Scan.gd_gk.wGreenDiscard = ps->DataInf.xyPhyDpi.y / 150U;
}
} else {
ps->Scan.gd_gk.wGreenDiscard = 1;
}
ps->Scan.bd_rk.wBlueDiscard = ps->Scan.gd_gk.wGreenDiscard << 1;
} else {
ps->Scan.bd_rk.wBlueDiscard = ps->Scan.gd_gk.wGreenDiscard = 0;
}
}
/*.............................................................................
* PrepareScanningVariables() !!!
*/
static int imageP98003SetupScanSettings( pScanData ps, pScanInfo pInf )
{
DBG( DBG_LOW, "imageP98003SetupScanSettings()\n" );
/* call the one for ASIC 98001 first */
imageP98SetupScanSettings( ps, pInf );
if( !(ps->DataInf.dwScanFlag & SCANDEF_TPA )) {
ps->Scan.dwScanOrigin = ps->Device.lUpNormal * 4 + _RFT_SCANNING_ORG;
} else if( ps->DataInf.dwScanFlag & SCANDEF_Transparency) {
ps->Scan.dwScanOrigin = ps->Device.lUpPositive * 4 +
_POS_SCANNING_ORG;
} else {
ps->Scan.dwScanOrigin = ps->Device.lUpNegative * 4 +
_NEG_SCANNING_ORG;
}
ps->Scan.dwScanOrigin += ps->Device.dwModelOriginY;
/* ------- Setup CCD Offset variables ------- */
if( ps->DataInf.xyAppDpi.y <= 75 ) {
if( ps->DataInf.dwVxdFlag & _VF_PREVIEW ) {
ps->Scan.bDiscardAll = 0;
ps->DataInf.xyPhyDpi.y = 150;
ps->Shade.bIntermediate |= _ScanMode_AverageOut;
imageP98003SetupScanStateVariables( ps, 1 );
ps->Scan.gd_gk.wGreenDiscard = 0;
if( ps->DataInf.xyAppDpi.y >= 38 )
ps->Scan.bd_rk.wBlueDiscard = 1;
else
ps->Scan.bd_rk.wBlueDiscard = 0;
if( ps->DataInf.wPhyDataType >= COLOR_256GRAY ) {
ps->Shade.wXStep = 6;
ps->Shade.wExposure = 8 * ps->Shade.wXStep;
}
} else {
if(!(ps->DataInf.dwScanFlag & SCANDEF_TPA) &&
(ps->DataInf.xyAppDpi.y <= 50) &&
(ps->DataInf.wPhyDataType >= COLOR_TRUE24)) {
ps->Shade.bIntermediate |= _ScanMode_AverageOut;
}
if((ps->DataInf.wPhyDataType<COLOR_TRUE24) || ps->Device.f0_8_16 ||
(ps->Shade.bIntermediate & _ScanMode_AverageOut)) {
ps->Scan.bDiscardAll = 1;
ps->DataInf.xyPhyDpi.y = 75;
imageP98003SetupScanStateVariables( ps, 0 );
} else {
ps->Scan.bDiscardAll = 2;
ps->DataInf.xyPhyDpi.y = 150;
imageP98003SetupScanStateVariables( ps, 1 );
}
}
} else {
if( ps->DataInf.xyAppDpi.y <= 150 ) {
ps->Scan.bDiscardAll = 2;
ps->DataInf.xyPhyDpi.y = 150;
imageP98003SetupScanStateVariables( ps, 1 );
} else if( ps->DataInf.xyAppDpi.y <= 300 ) {
ps->Scan.bDiscardAll = 4;
ps->DataInf.xyPhyDpi.y = 300;
imageP98003SetupScanStateVariables( ps, 2 );
} else if( ps->DataInf.xyAppDpi.y <= 600 ) {
ps->Scan.bDiscardAll = 8;
ps->DataInf.xyPhyDpi.y = 600;
imageP98003SetupScanStateVariables( ps, 3 );
} else {
ps->Scan.bDiscardAll = 16;
ps->DataInf.xyPhyDpi.y = 1200;
imageP98003SetupScanStateVariables( ps, 4 );
}
}
/* ------- Lines have to sample or not? ------- */
if( ps->DataInf.xyAppDpi.y == ps->DataInf.xyPhyDpi.y ) {
DBG( DBG_LOW, "Sample every line\n" );
ps->Scan.DoSample = fnEveryLines;
} else {
if( ps->DataInf.dwVxdFlag & _VF_PREVIEW ) {
DBG( DBG_LOW, "Sample preview\n" );
ps->Scan.DoSample = fnSamplePreview;
ps->DataInf.wYSum = 150;
if( ps->DataInf.xyAppDpi.y >= 38 )
wPreviewScanned = ps->DataInf.xyAppDpi.y * 2;
else if( ps->DataInf.xyAppDpi.y >= 19 )
wPreviewScanned = ps->DataInf.xyAppDpi.y * 4;
else
wPreviewScanned = ps->DataInf.xyAppDpi.y * 8;
} else {
DBG( DBG_LOW, "Sample lines (%u - %u)...\n",
ps->DataInf.xyPhyDpi.y, ps->DataInf.xyAppDpi.y );
ps->Scan.DoSample = fnSampleLines;
ps->DataInf.wYSum = ps->DataInf.xyPhyDpi.y - ps->DataInf.xyAppDpi.y;
}
}
/*
* now assign the buffer pointers for image aquisition
*/
ps->Scan.p48BitBuf.pb = NULL;
if( ps->DataInf.wPhyDataType >= COLOR_TRUE24 ) {
ULong r,g,b;
r = (ULong)_SIZE_REDFIFO /
ps->DataInf.dwAsicBytesPerPlane - ps->Scan.bd_rk.wRedKeep;
g = (ULong)_SIZE_GREENFIFO /
ps->DataInf.dwAsicBytesPerPlane - ps->Scan.gd_gk.wGreenKeep;
if((int)r < 16 || (int)g < 16) {
b = (ULong)(ps->Scan.bd_rk.wRedKeep +
ps->Scan.gd_gk.wGreenKeep + 2U) *
ps->DataInf.dwAsicBytesPerPlane;
DBG( DBG_LOW, "48Bit buffer request: len=%lu bytes, available=%lu\n",
b, ps->TotalBufferRequire );
if( b > ps->TotalBufferRequire )
return _E_NORESOURCE;
ps->Scan.p48BitBuf.pb = ps->Bufs.b1.pReadBuf;
}
}
if( ps->Scan.p48BitBuf.pb ){
ps->Scan.DataRead = fnReadToDriver;
ps->Scan.BufGet.red.bp =
ps->Scan.BufPut.red.bp =
ps->Scan.BufBegin.red.bp = ps->Scan.p48BitBuf.pb;
ps->Scan.BufEnd.red.bp =
ps->Scan.BufBegin.green.bp =
ps->Scan.BufGet.green.bp =
ps->Scan.BufPut.green.bp = ps->Scan.p48BitBuf.pb +
ps->DataInf.dwAsicBytesPerLine *
(ps->Scan.bd_rk.wRedKeep + 1U);
ps->Scan.BufEnd.green.bp = ps->Scan.BufBegin.green.bp +
ps->DataInf.dwAsicBytesPerLine *
(ps->Scan.gd_gk.wGreenKeep + 1U);
ps->Scan.BufPut.blue.bp =
ps->Scan.BufGet.blue.bp = ps->Bufs.b1.pReadBuf +
ps->DataInf.dwAsicBytesPerLine * 2;
} else {
ps->Scan.DataRead = fnReadOutScanner;
ps->Scan.BufPut.red.bp = ps->Bufs.b1.pReadBuf;
ps->Scan.BufData.green.bp =
ps->Scan.BufPut.green.bp = ps->Scan.BufPut.red.bp +
ps->DataInf.dwAsicBytesPerLine;
ps->Scan.BufPut.blue.bp = ps->Scan.BufPut.green.bp +
ps->DataInf.dwAsicBytesPerLine;
if( ps->DataInf.dwScanFlag & SCANDEF_ColorBGROrder ) {
ps->Scan.BufData.red.bp = ps->Scan.BufPut.blue.bp;
ps->Scan.BufData.blue.bp = ps->Scan.BufPut.red.bp;
} else {
ps->Scan.BufData.red.bp = ps->Scan.BufPut.red.bp;
ps->Scan.BufData.blue.bp = ps->Scan.BufPut.blue.bp;
}
}
/* CHECK: maybe remove this stuff */
if( ps->DataInf.dwScanFlag & SCANDEF_Transparency) {
posScan[1].exposureTime = 96;
posScan[1].xStepTime = 12;
posScan[2].exposureTime = 96;
posScan[2].xStepTime = 24;
posScan[3].exposureTime = 96;
posScan[3].xStepTime = 48;
posScan[4].exposureTime = 96;
posScan[4].xStepTime = 96;
/* Reset shading Exposure Time & xStep Time */
ps->Shade.wExposure = posScan[ps->Scan.dpiIdx].exposureTime;
ps->Shade.wXStep = posScan[ps->Scan.dpiIdx].xStepTime;
}
else if( ps->DataInf.dwScanFlag & SCANDEF_Negative) {
ps->Scan.negScan[1].exposureTime = 96;
ps->Scan.negScan[1].xStepTime = 12;
ps->Scan.negScan[2].exposureTime = 96;
ps->Scan.negScan[2].xStepTime = 24;
ps->Scan.negScan[3].exposureTime = 96;
ps->Scan.negScan[3].xStepTime = 48;
ps->Scan.negScan[4].exposureTime = 96;
ps->Scan.negScan[4].xStepTime = 96;
/* Reset shading Exposure Time & xStep Time */
ps->Shade.wExposure = ps->Scan.negScan[ps->Scan.dpiIdx].exposureTime;
ps->Shade.wXStep = ps->Scan.negScan[ps->Scan.dpiIdx].xStepTime;
}
return _OK;
}
/************************ exported functions *********************************/
/**
*/
_LOC int ImageInitialize( pScanData ps )
{
DBG( DBG_HIGH, "ImageInitialize()\n" );
if( NULL == ps )
return _E_NULLPTR;
ps->Scan.dpiIdx = 0;
ps->Scan.negScan = negScan;
/*
* depending on the asic, we set some functions
*/
if( _ASIC_IS_98001 == ps->sCaps.AsicID ) {
ps->GetImageInfo = imageP98GetInfo;
ps->SetupScanSettings = imageP98SetupScanSettings;
ps->ReadOneImageLine = imageP98001ReadOneImageLine;
} else if( _ASIC_IS_98003 == ps->sCaps.AsicID ) {
ps->GetImageInfo = imageP98GetInfo;
ps->SetupScanSettings = imageP98003SetupScanSettings;
ps->ReadOneImageLine = imageP98003ReadOneImageLine;
} else if( _IS_ASIC96(ps->sCaps.AsicID)) {
ps->GetImageInfo = imageP96GetInfo;
ps->SetupScanSettings = imageP96SetupScanSettings;
ps->ReadOneImageLine = imageP96ReadOneImageLine;
} else {
DBG( DBG_HIGH , "NOT SUPPORTED ASIC !!!\n" );
return _E_NOSUPP;
}
return _OK;
}
/* END PLUSTEK-PP_IMAGE.C ...................................................*/
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