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Further refactoring of Asic_SetWindow.

merge-requests/1/head
Jan Hauffa 2011-03-13 19:41:40 +01:00 zatwierdzone przez m. allan noah
rodzic 82a40d5dca
commit ed5dc8a7cd
1 zmienionych plików z 84 dodań i 77 usunięć
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161
backend/mustek_usb2_asic.c
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@ -2044,6 +2044,86 @@ Asic_TurnTA (PAsic chip, SANE_Bool isTAOn)
return STATUS_GOOD;
}
static SANE_Byte
GetBytePerPixel (SANE_Byte bBitPerPixel)
{
switch (bBitPerPixel)
{
case 48:
return 6;
case 24:
return 3;
case 16:
return 2;
case 8:
default:
return 1;
}
}
static SANE_Byte
GetDummyCycleNumber (PAsic chip, unsigned short wYResolution)
{
SANE_Byte bDummyCycleNum = 0;
if (chip->lsLightSource == LS_REFLECTIVE)
{
if (chip->UsbHost == HT_USB10)
{
switch (wYResolution)
{
case 2400:
case 1200:
if (chip->dwBytesCountPerRow > 22000)
bDummyCycleNum = 4;
else if (chip->dwBytesCountPerRow > 15000)
bDummyCycleNum = 3;
else if (chip->dwBytesCountPerRow > 10000)
bDummyCycleNum = 2;
else if (chip->dwBytesCountPerRow > 5000)
bDummyCycleNum = 1;
break;
case 600:
case 300:
case 150:
case 100:
if (chip->dwBytesCountPerRow > 21000)
bDummyCycleNum = 7;
else if (chip->dwBytesCountPerRow > 18000)
bDummyCycleNum = 6;
else if (chip->dwBytesCountPerRow > 15000)
bDummyCycleNum = 5;
else if (chip->dwBytesCountPerRow > 12000)
bDummyCycleNum = 4;
else if (chip->dwBytesCountPerRow > 9000)
bDummyCycleNum = 3;
else if (chip->dwBytesCountPerRow > 6000)
bDummyCycleNum = 2;
else if (chip->dwBytesCountPerRow > 3000)
bDummyCycleNum = 1;
break;
case 75:
case 50:
bDummyCycleNum = 1;
break;
}
}
else
{
switch (wYResolution)
{
case 2400:
case 1200:
case 75:
case 50:
bDummyCycleNum = 1;
break;
}
}
}
return bDummyCycleNum;
}
static STATUS
Asic_SetWindow (PAsic chip, SANE_Byte bScanType, SANE_Byte bScanBits,
unsigned short wXResolution, unsigned short wYResolution,
@ -2097,87 +2177,14 @@ Asic_SetWindow (PAsic chip, SANE_Byte bScanType, SANE_Byte bScanBits,
LED_MODE_FLASH_SLOWLY | 0x40 | 0x80);
/* calculate byte per line */
if (bScanBits > 24)
chip->dwBytesCountPerRow = (unsigned int) wWidth * 6;
else if (bScanBits == 24)
chip->dwBytesCountPerRow = (unsigned int) wWidth * 3;
else if ((bScanBits > 8) && (bScanBits <= 16))
chip->dwBytesCountPerRow = (unsigned int) wWidth * 2;
else if (bScanBits == 8)
chip->dwBytesCountPerRow = (unsigned int) wWidth;
else /* bScanBits < 8 */
chip->dwBytesCountPerRow = (unsigned int) wWidth;
chip->dwBytesCountPerRow = (unsigned int) wWidth *
GetBytePerPixel (bScanBits);
DBG (DBG_ASIC, "dwBytesCountPerRow=%d\n", chip->dwBytesCountPerRow);
bDummyCycleNum = 0;
if (bScanType == SCAN_TYPE_NORMAL)
{
if (chip->lsLightSource == LS_REFLECTIVE)
{
if (chip->UsbHost == HT_USB10)
{
switch (wYResolution)
{
case 2400:
case 1200:
if (chip->dwBytesCountPerRow > 22000)
bDummyCycleNum = 4;
else if (chip->dwBytesCountPerRow > 15000)
bDummyCycleNum = 3;
else if (chip->dwBytesCountPerRow > 10000)
bDummyCycleNum = 2;
else if (chip->dwBytesCountPerRow > 5000)
bDummyCycleNum = 1;
break;
case 600:
case 300:
case 150:
case 100:
if (chip->dwBytesCountPerRow > 21000)
bDummyCycleNum = 7;
else if (chip->dwBytesCountPerRow > 18000)
bDummyCycleNum = 6;
else if (chip->dwBytesCountPerRow > 15000)
bDummyCycleNum = 5;
else if (chip->dwBytesCountPerRow > 12000)
bDummyCycleNum = 4;
else if (chip->dwBytesCountPerRow > 9000)
bDummyCycleNum = 3;
else if (chip->dwBytesCountPerRow > 6000)
bDummyCycleNum = 2;
else if (chip->dwBytesCountPerRow > 3000)
bDummyCycleNum = 1;
break;
case 75:
case 50:
bDummyCycleNum = 1;
break;
default:
bDummyCycleNum = 0;
break;
}
}
else
{
switch (wYResolution)
{
case 2400:
case 1200:
case 75:
case 50:
bDummyCycleNum = 1;
break;
default:
bDummyCycleNum = 0;
break;
}
}
}
}
bDummyCycleNum = GetDummyCycleNumber (chip, wYResolution);
else
{
bDummyCycleNum = 1;
}
bDummyCycleNum = 1;
SetCCDTiming (chip);