kopia lustrzana https://gitlab.com/sane-project/backends
Faster AFE calibration. Minor fixes. New version: 1.0-28.
Henning Geinitz
rodzic
719d9cdd36
commit
7b590a0cde
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@ -1,6 +1,9 @@
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2002-10-31 Henning Meier-Geinitz <henning@meier-geinitz.de>
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* configure configure.in: Print installation directories.
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* backend/gt68xx.c backend/gt68xx_devices.c backend/gt68xx_high.c
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backend/gt68xx_low.c backend/gt68xx_low.h doc/gt68xx/gt68xx.CHANGES:
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Faster AFE calibration. Minor fixes. New version: 1.0-28.
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2002-10-31 Stéphane Voltz <svoltz@wanadoo.fr>
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@ -48,7 +48,7 @@
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#include "../include/sane/config.h"
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#define BUILD 27
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#define BUILD 28
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#define MAX_DEBUG
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#define WARMUP_TIME 30
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@ -49,29 +49,6 @@
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#include "gt68xx_gt6801.c"
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#include "gt68xx_gt6816.c"
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/* Default parameters for the analog frontend (offset, gain) */
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static GT68xx_AFE_Parameters default_afe_params = {
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0x14, 0x07, 0x14, 0x07, 0x14, 0x07
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};
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static GT68xx_AFE_Parameters mustek_2400ta_afe_params = {
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0x2a, 0x0c, 0x2e, 0x06, 0x2d, 0x07
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};
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static GT68xx_AFE_Parameters mustek_1200ta_afe_params = {
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0x2a, 0x0c, 0x2e, 0x06, 0x2d, 0x07
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};
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static GT68xx_AFE_Parameters mustek_1200cu_afe_params = {
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0x14, 0x06, 0x15, 0x08, 0x11, 0x04
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};
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/* Default exposure times */
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static GT68xx_Exposure_Parameters default_exposure_params = {
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0x157, 0x157, 0x157
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};
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static GT68xx_Command_Set mustek_gt6816_command_set = {
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"mustek-gt6816",
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@ -160,8 +137,8 @@ static GT68xx_Model mustek_2400ta_model = {
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0,
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COLOR_ORDER_RGB,
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&mustek_2400ta_afe_params,
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&default_exposure_params,
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{0x2a, 0x0c, 0x2e, 0x06, 0x2d, 0x07},
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{0x157, 0x157, 0x157},
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SANE_FALSE,
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0
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/* flatbed values tested */
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@ -188,7 +165,7 @@ static GT68xx_Model mustek_2400taplus_model = {
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{16, 12, 8, 0},
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SANE_FIX (7.41),
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SANE_FIX (7.4),
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SANE_FIX (219.0),
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SANE_FIX (217.5),
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SANE_FIX (298.0),
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SANE_FIX (0.0),
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SANE_FIX (5.0),
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@ -203,8 +180,8 @@ static GT68xx_Model mustek_2400taplus_model = {
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8,
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COLOR_ORDER_RGB,
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&mustek_2400ta_afe_params,
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&default_exposure_params,
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{0x2a, 0x0c, 0x2e, 0x06, 0x2d, 0x07},
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{0x157, 0x157, 0x157},
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SANE_FALSE,
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0
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/* Setup and tested */
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@ -247,8 +224,8 @@ static GT68xx_Model mustek_1200ta_model = {
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0,
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COLOR_ORDER_RGB,
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&mustek_1200ta_afe_params,
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&default_exposure_params,
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{0x2a, 0x0c, 0x2e, 0x06, 0x2d, 0x07},
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{0x157, 0x157, 0x157},
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SANE_FALSE,
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0
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/* Everything untested */
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@ -290,8 +267,8 @@ static GT68xx_Model mustek_1200cuplus_model = {
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0,
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COLOR_ORDER_BGR,
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&default_afe_params,
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&default_exposure_params,
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{0x14, 0x07, 0x14, 0x07, 0x14, 0x07},
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{0x157, 0x157, 0x157},
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SANE_TRUE,
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0
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/* Everything untested */
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@ -333,8 +310,8 @@ static GT68xx_Model mustek_2400cuplus_model = {
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0,
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COLOR_ORDER_BGR,
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&default_afe_params,
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&default_exposure_params,
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{0x1a, 0x16, 0x15, 0x08, 0x0e, 0x02},
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{0x157, 0x157, 0x157},
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SANE_TRUE,
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0
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/* Setup and tested */
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@ -379,8 +356,8 @@ static GT68xx_Model mustek_1200cu_model = {
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0,
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COLOR_ORDER_BGR,
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&mustek_1200cu_afe_params,
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&default_exposure_params,
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{0x13, 0x04, 0x15, 0x06, 0x0f, 0x02},
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{0x157, 0x157, 0x157},
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SANE_TRUE,
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0
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/* Setup and tested */
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@ -422,8 +399,8 @@ static GT68xx_Model mustek_scanexpress1200ubplus_model = {
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0,
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COLOR_ORDER_BGR,
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&mustek_1200cu_afe_params,
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&default_exposure_params,
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{0x0f, 0x01, 0x15, 0x06, 0x13, 0x04},
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{0x157, 0x157, 0x157},
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SANE_TRUE,
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0
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/* Setup and tested */
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@ -464,8 +441,8 @@ static GT68xx_Model artec_ultima2000_model = {
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0,
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COLOR_ORDER_BGR,
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&mustek_1200cu_afe_params,
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&default_exposure_params,
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{0x0f, 0x01, 0x15, 0x06, 0x13, 0x04},
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{0x157, 0x157, 0x157},
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SANE_TRUE,
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GT68XX_FLAG_MIRROR_X | GT68XX_FLAG_MOTOR_HOME | GT68XX_FLAG_OFFSET_INV
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/* Setup for Cytron TCM MD 9385 */
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@ -507,8 +484,8 @@ static GT68xx_Model mustek_2400cu_model = {
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0,
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COLOR_ORDER_BGR,
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&mustek_1200cu_afe_params,
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&default_exposure_params,
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{0x0f, 0x01, 0x15, 0x06, 0x13, 0x04},
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{0x157, 0x157, 0x157},
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SANE_TRUE,
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0
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/* basically tested, works up to 300 dpi (?) */
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@ -550,8 +527,8 @@ static GT68xx_Model mustek_a3usb_model = {
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0,
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COLOR_ORDER_BGR,
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&default_afe_params,
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&default_exposure_params,
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{0x14, 0x07, 0x14, 0x07, 0x14, 0x07},
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{0x157, 0x157, 0x157},
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SANE_TRUE,
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0
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/* Completely untested */
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@ -594,8 +571,8 @@ static GT68xx_Model lexmark_x73_model = {
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0,
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COLOR_ORDER_RGB,
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&default_afe_params,
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&default_exposure_params,
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{0x14, 0x07, 0x14, 0x07, 0x14, 0x07},
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{0x157, 0x157, 0x157},
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SANE_FALSE,
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0
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/* 50 dpi and 1200 dpi scan does not work (for lexmark x70); when using
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@ -451,7 +451,6 @@ gt68xx_scanner_internal_start_scan (GT68xx_Scanner * scanner)
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break;
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usleep (100000);
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}
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if (!ready)
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{
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XDBG ((5, "%s: scanner still not ready - giving up\n", function_name));
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@ -643,6 +642,8 @@ gt68xx_scanner_calibrate (GT68xx_Scanner * scanner,
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GT68xx_Scan_Request req;
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SANE_Int i;
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unsigned int *buffer_pointers[3];
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GT68xx_AFE_Parameters *afe = scanner->dev->afe;
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GT68xx_Exposure_Parameters *exposure = scanner->dev->exposure;
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memcpy (&req, request, sizeof (req));
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@ -666,6 +667,11 @@ gt68xx_scanner_calibrate (GT68xx_Scanner * scanner,
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else
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req.mbs = SANE_TRUE;
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DBG (3, "afe 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n", afe->r_offset,
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afe->r_pga, afe->g_offset, afe->g_pga, afe->b_offset, afe->b_pga);
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DBG (3, "exposure 0x%02x 0x%02x 0x%02x\n", exposure->r_time,
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exposure->g_time, exposure->b_time);
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if (!scanner->calib)
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return SANE_STATUS_GOOD;
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@ -1436,26 +1442,41 @@ gt68xx_afe_cis_calc_white (GT68xx_Afe_Values * values,
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static SANE_Bool
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gt68xx_afe_cis_adjust_offset (GT68xx_Afe_Values * values,
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unsigned int *black_buffer, SANE_Int off_dist,
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SANE_Byte * offset)
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unsigned int *black_buffer,
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SANE_Int offset_direction, SANE_Byte * offset)
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{
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SANE_Int offs = *offset;
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SANE_Int offs = 0, tmp_offset = *offset;
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SANE_Int low = 8, high = 22;
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gt68xx_afe_cis_calc_black (values, black_buffer);
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if (values->black < 5)
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offs += off_dist;
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else if (values->black > 15)
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offs -= off_dist;
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if (values->black < low)
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{
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offs = (offset_direction * (low - values->black) / 4);
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if (offs == 0)
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offs = offset_direction;
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DBG (5, "black = %d (too low) --> offs = %d\n", values->black, offs);
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}
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else if (values->black > high)
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{
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offs = -(offset_direction * (values->black - high) / 7);
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if (offs == 0)
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offs = -offset_direction;
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DBG (5, "black = %d (too high) --> offs = %d\n", values->black, offs);
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}
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else
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{
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DBG (5, "black = %d (ok)\n", values->black);
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}
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if (offs < 0)
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offs = 0;
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if (offs > 63)
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offs = 63;
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if (offs == *offset)
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if (offs == 0)
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return SANE_TRUE;
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*offset = offs;
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tmp_offset += offs;
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if (tmp_offset < 0)
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tmp_offset = 0;
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if (tmp_offset > 63)
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tmp_offset = 63;
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*offset = tmp_offset;
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return SANE_FALSE;
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}
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@ -1467,8 +1488,20 @@ gt68xx_afe_cis_adjust_gain (GT68xx_Afe_Values * values,
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gt68xx_afe_cis_calc_white (values, white_buffer);
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if (values->white < 240)
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g += 2;
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if (values->white < 235)
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{
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g += 1;
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DBG (5, "white = %d (too low) --> gain += 1\n", values->white);
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}
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else if (values->white > 250)
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{
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g -= 1;
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DBG (5, "white = %d (too high) --> gain -= 1\n", values->white);
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}
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else
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{
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DBG (5, "white = %d (ok)\n", values->white);
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}
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if (g < 0)
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g = 0;
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if (g > 63)
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@ -1483,20 +1516,27 @@ gt68xx_afe_cis_adjust_gain (GT68xx_Afe_Values * values,
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static SANE_Bool
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gt68xx_afe_cis_adjust_exposure (GT68xx_Afe_Values * values,
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unsigned int *white_buffer,
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SANE_Int expos_dist, SANE_Int border,
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SANE_Int * exposure_time)
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SANE_Int border, SANE_Int * exposure_time)
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{
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gt68xx_afe_cis_calc_white (values, white_buffer);
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if (values->white < border)
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{
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*exposure_time += expos_dist;
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*exposure_time += ((border - values->white) * 2);
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DBG (5, "white = %d (too low) --> += %d\n",
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values->white, ((border - values->white) * 2));
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return SANE_FALSE;
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}
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if (values->white > border + 10)
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else if (values->white > border + 10)
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{
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*exposure_time -= expos_dist;
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*exposure_time -= ((values->white - (border + 10)) * 2);
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DBG (5, "white = %d (too high) --> -= %d\n",
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values->white, ((values->white - (border + 10)) * 2));
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return SANE_FALSE;
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}
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else
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{
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DBG (5, "white = %d (ok)\n", values->white);
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}
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return SANE_TRUE;
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}
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@ -1591,11 +1631,11 @@ static SANE_Status
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gt68xx_afe_cis_auto (GT68xx_Scanner * scanner)
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{
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DECLARE_FUNCTION_NAME ("gt68xx_afe_cis_auto") SANE_Status status;
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int total_count, offset_count;
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int total_count, offset_count, exposure_count;
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GT68xx_Afe_Values values;
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GT68xx_AFE_Parameters *afe = scanner->dev->afe;
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GT68xx_Exposure_Parameters *exposure = scanner->dev->exposure;
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SANE_Int off_dist, expos_dist;
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SANE_Int offset_direction;
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SANE_Int done;
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SANE_Bool first = SANE_TRUE;
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unsigned int *r_buffer = 0, *g_buffer = 0, *b_buffer = 0;
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@ -1615,15 +1655,13 @@ gt68xx_afe_cis_auto (GT68xx_Scanner * scanner)
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return SANE_STATUS_NO_MEM;
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total_count = 0;
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afe->r_pga = afe->g_pga = afe->b_pga = 0x06;
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/* afe->r_pga = afe->g_pga = afe->b_pga = 0x06; */
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do
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{
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offset_count = 0;
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off_dist = 32;
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offset_direction = 1;
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if (scanner->dev->model->flags & GT68XX_FLAG_OFFSET_INV)
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off_dist = -off_dist;
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afe->r_offset = afe->g_offset = afe->b_offset = 0x20;
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offset_direction = -1;
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exposure->r_time = exposure->g_time = exposure->b_time = 0x157;
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do
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{
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@ -1633,23 +1671,23 @@ gt68xx_afe_cis_auto (GT68xx_Scanner * scanner)
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/* read black line */
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RIE (gt68xx_afe_cis_read_lines (&values, scanner, SANE_FALSE, first,
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r_buffer, g_buffer, b_buffer));
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off_dist /= 2;
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/*offset_direction /= 2; */
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done =
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gt68xx_afe_cis_adjust_offset (&values, r_buffer, off_dist,
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gt68xx_afe_cis_adjust_offset (&values, r_buffer, offset_direction,
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&afe->r_offset);
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done &=
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gt68xx_afe_cis_adjust_offset (&values, g_buffer, off_dist,
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gt68xx_afe_cis_adjust_offset (&values, g_buffer, offset_direction,
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&afe->g_offset);
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done &=
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gt68xx_afe_cis_adjust_offset (&values, b_buffer, off_dist,
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gt68xx_afe_cis_adjust_offset (&values, b_buffer, offset_direction,
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&afe->b_offset);
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offset_count++;
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total_count++;
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first = SANE_FALSE;
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}
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while (offset_count < 6 && !done);
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while (offset_count < 10 && !done);
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/* AFE gain */
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IF_DBG (gt68xx_afe_dump ("gain", total_count, afe));
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@ -1669,8 +1707,7 @@ gt68xx_afe_cis_auto (GT68xx_Scanner * scanner)
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IF_DBG (gt68xx_afe_dump ("final", total_count, afe));
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/* Exposure time */
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expos_dist = exposure->r_time;
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exposure_count = 0;
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do
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{
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IF_DBG (gt68xx_afe_exposure_dump ("exposure", total_count, exposure));
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@ -1678,21 +1715,21 @@ gt68xx_afe_cis_auto (GT68xx_Scanner * scanner)
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/* read white line */
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RIE (gt68xx_afe_cis_read_lines (&values, scanner, SANE_TRUE, SANE_FALSE,
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r_buffer, g_buffer, b_buffer));
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expos_dist /= 2;
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done = gt68xx_afe_cis_adjust_exposure (&values, r_buffer, expos_dist,
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230, &exposure->r_time);
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done &= gt68xx_afe_cis_adjust_exposure (&values, g_buffer, expos_dist,
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230, &exposure->g_time);
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done &= gt68xx_afe_cis_adjust_exposure (&values, b_buffer, expos_dist,
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230, &exposure->b_time);
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done = gt68xx_afe_cis_adjust_exposure (&values, r_buffer, 230,
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&exposure->r_time);
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done &= gt68xx_afe_cis_adjust_exposure (&values, g_buffer, 230,
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&exposure->g_time);
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done &= gt68xx_afe_cis_adjust_exposure (&values, b_buffer, 230,
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&exposure->b_time);
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exposure_count++;
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total_count++;
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}
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while (!done && expos_dist > 0);
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while (!done && exposure_count < 10);
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free (r_buffer);
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free (g_buffer);
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free (b_buffer);
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XDBG ((4, "%s: total_count: %d\n", function_name, total_count));
|
||||
return SANE_STATUS_GOOD;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -412,8 +412,8 @@ gt68xx_device_activate (GT68xx_Device * dev)
|
|||
if (!dev->afe || !dev->exposure)
|
||||
return SANE_STATUS_NO_MEM;
|
||||
|
||||
memcpy (dev->afe, dev->model->afe_params, sizeof (*dev->afe));
|
||||
memcpy (dev->exposure, dev->model->exposure, sizeof (*dev->exposure));
|
||||
memcpy (dev->afe, &dev->model->afe_params, sizeof (*dev->afe));
|
||||
memcpy (dev->exposure, &dev->model->exposure, sizeof (*dev->exposure));
|
||||
dev->active = SANE_TRUE;
|
||||
|
||||
return SANE_STATUS_GOOD;
|
||||
|
|
|
|||
|
|
@ -182,6 +182,28 @@ struct GT68xx_USB_Device_Entry
|
|||
*/
|
||||
static GT68xx_USB_Device_Entry gt68xx_usb_device_list[MAX_SCANNERS];
|
||||
|
||||
/** GT68xx analog front-end (AFE) parameters.
|
||||
*/
|
||||
struct GT68xx_AFE_Parameters
|
||||
{
|
||||
SANE_Byte r_offset; /**< Red channel offset */
|
||||
SANE_Byte r_pga; /**< Red channel PGA gain */
|
||||
SANE_Byte g_offset; /**< Green channel offset (also used for mono) */
|
||||
SANE_Byte g_pga; /**< Green channel PGA gain (also used for mono) */
|
||||
SANE_Byte b_offset; /**< Blue channel offset */
|
||||
SANE_Byte b_pga; /**< Blue channel PGA gain */
|
||||
};
|
||||
|
||||
/** GT68xx exposure time parameters.
|
||||
*/
|
||||
struct GT68xx_Exposure_Parameters
|
||||
{
|
||||
SANE_Int r_time; /**< Red exposure time */
|
||||
SANE_Int g_time; /**< Red exposure time */
|
||||
SANE_Int b_time; /**< Red exposure time */
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* Scanner command set description.
|
||||
*
|
||||
|
|
@ -438,8 +460,8 @@ struct GT68xx_Model
|
|||
SANE_Int ld_shift_double;
|
||||
|
||||
GT68xx_Color_Order line_mode_color_order;
|
||||
GT68xx_AFE_Parameters *afe_params;
|
||||
GT68xx_Exposure_Parameters *exposure;
|
||||
GT68xx_AFE_Parameters afe_params;
|
||||
GT68xx_Exposure_Parameters exposure;
|
||||
|
||||
SANE_Bool is_cis; /* Is this a CIS or CCD scanner? */
|
||||
SANE_Word flags; /* Which hacks are needed for this scanner? */
|
||||
|
|
@ -538,26 +560,6 @@ struct GT68xx_Scan_Parameters
|
|||
SANE_Int double_column;
|
||||
};
|
||||
|
||||
/** GT68xx analog front-end (AFE) parameters.
|
||||
*/
|
||||
struct GT68xx_AFE_Parameters
|
||||
{
|
||||
SANE_Byte r_offset; /**< Red channel offset */
|
||||
SANE_Byte r_pga; /**< Red channel PGA gain */
|
||||
SANE_Byte g_offset; /**< Green channel offset (also used for mono) */
|
||||
SANE_Byte g_pga; /**< Green channel PGA gain (also used for mono) */
|
||||
SANE_Byte b_offset; /**< Blue channel offset */
|
||||
SANE_Byte b_pga; /**< Blue channel PGA gain */
|
||||
};
|
||||
|
||||
/** GT68xx exposure time parameters.
|
||||
*/
|
||||
struct GT68xx_Exposure_Parameters
|
||||
{
|
||||
SANE_Int r_time; /**< Red exposure time */
|
||||
SANE_Int g_time; /**< Red exposure time */
|
||||
SANE_Int b_time; /**< Red exposure time */
|
||||
};
|
||||
|
||||
#define GT68XX_PACKET_SIZE 64
|
||||
|
||||
|
|
|
|||
|
|
@ -1,4 +1,14 @@
|
|||
V 1.0-27 (2002-10-??)
|
||||
V 1.0-28 (2002-10-31)
|
||||
|
||||
- Reduce scan width of 2400 TA Plus: otherwise the black mark would create
|
||||
light vertical stripes.
|
||||
- Removed default parameters. Set AFE and exposure in every model struct.
|
||||
- Faster automatic gain setting for the CIS scanners. The default values from
|
||||
the model struct and the last values are used for calculation.
|
||||
- Set default AFE values for ScanExpress 1200 UB Plus, BearPaw 1200 CU, BearPaw
|
||||
2400 CU Plus.
|
||||
|
||||
V 1.0-27 (2002-10-25)
|
||||
|
||||
- Bugfix: override applies to all devices found by the last usb line.
|
||||
- Individual resolutions + depth values for every scanner.
|
||||
|
|
|
|||
Ładowanie…
Reference in New Issue