kopia lustrzana https://gitlab.com/sane-project/backends
297 wiersze
9.8 KiB
C
297 wiersze
9.8 KiB
C
/* sane - Scanner Access Now Easy.
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Copyright (C) 2004 -2006 Gerard Klaver (gerard at gkall dot hobby dot nl)
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The teco2 and gl646 backend (Frank Zago) are used as a template for
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this backend.
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For the usb commands and bayer decoding parts of the following
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program are used:
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The pencam2 program (GNU GPL license 2)
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For the usb commands parts of the following programs are used:
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The libgphoto2 (camlib stv0680) (GNU GPL license 2)
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The stv680.c/.h kernel module (GNU GPL license 2)
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For the stv680_add_text routine the add_text routine and font_6x11.h file
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are taken from the webcam.c file, part of xawtv program,
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(c) 1998-2002 Gerd Knorr (GNU GPL license 2).
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This file is part of the SANE package.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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---------------------------------------------------------------------
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*/
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/* Commands supported by the vidcam. */
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/*--------------------------------------------------------------------------*/
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static inline int
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getbitfield (unsigned char *pageaddr, int mask, int shift)
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{
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return ((*pageaddr >> shift) & mask);
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}
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/*--------------------------------------------------------------------------*/
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#include <stdio.h>
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#define LIBUSB_TIMEOUT 1000 /* ms */
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typedef unsigned char byte;
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/*--------------------------------------------------------------------------*/
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/* Black magic for color adjustment. */
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struct dpi_color_adjust
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{
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int resolution_x; /* x-resolution */
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int resolution_y; /* y-resolution */
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int z1_color_0; /* 0, 1 or 2 */
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int z1_color_1; /* idem */
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int z1_color_2; /* idem */
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};
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/*--------------------------------------------------------------------------*/
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enum Stv680_Option
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{
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/* Must come first */
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OPT_NUM_OPTS = 0,
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OPT_MODE_GROUP,
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OPT_MODE, /* vidcam modes */
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OPT_RESOLUTION, /* X and Y resolution */
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OPT_BRIGHTNESS, /* brightness */
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OPT_ENHANCEMENT_GROUP,
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OPT_WHITE_LEVEL_R, /*white level red correction */
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OPT_WHITE_LEVEL_G, /*white level green correction */
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OPT_WHITE_LEVEL_B, /*white level blue correction */
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/* must come last: */
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OPT_NUM_OPTIONS
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};
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/*--------------------------------------------------------------------------*/
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/*
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* Video Camera supported by this backend.
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*/
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struct vidcam_hardware
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{
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/* USB stuff */
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SANE_Word vendor;
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SANE_Word product;
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SANE_Word class;
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/* Readable names */
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const char *vendor_name; /* brand on the box */
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const char *product_name; /* name on the box */
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/* Resolutions supported in color mode. */
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const struct dpi_color_adjust *color_adjust;
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};
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#define COLOR_RAW_STR SANE_I18N("Color RAW")
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#define COLOR_RGB_STR SANE_I18N("Color RGB")
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#define COLOR_RGB_TEXT_STR SANE_I18N("Color RGB TEXT")
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/*--------------------------------------------------------------------------*/
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/* Define a vidcam occurrence. */
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typedef struct Stv680_Vidcam
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{
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struct Stv680_Vidcam *next;
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SANE_Device sane;
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char *devicename;
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SANE_Int fd; /* device handle */
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/* USB handling */
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size_t buffer_size; /* size of the buffer */
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SANE_Byte *buffer; /* for USB transfer. */
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/* Bayer handling */
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size_t output_size; /* size of the output */
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SANE_Byte *output; /* for bayer conversion */
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size_t image_size; /* allocated size of image */
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size_t image_begin; /* first significant byte in image */
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size_t image_end; /* first free byte in image */
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SANE_Byte *image; /* keep the raw image here */
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/* USB control messages handling */
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size_t windoww_size; /* size of window write */
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size_t windowr_size; /* size of window read */
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SANE_Byte *windoww; /* for window write */
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SANE_Byte *windowr; /* for window read */
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/* Scanner infos. */
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const struct vidcam_hardware *hw; /* default options for that vidcam */
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SANE_Word *resolutions_list;
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SANE_Word *color_sequence_list;
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/* Scanning handling. */
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SANE_Bool scanning; /* TRUE if a scan is running. */
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SANE_Bool deliver_eof;
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int x_resolution; /* X resolution */
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int y_resolution; /* Y resolution */
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int depth; /* depth per color */
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unsigned int colour;
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int red_s;
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int green_s;
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int blue_s;
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SANE_Parameters s_params;
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enum
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{
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STV680_COLOR_RGB,
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STV680_COLOR_RGB_TEXT,
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STV680_COLOR,
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STV680_COLOR_RAW
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}
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scan_mode;
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size_t bytes_left; /* number of bytes left to give to the backend */
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size_t real_bytes_left; /* number of bytes left the vidcam will return. */
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int bytes_pixel;
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const struct dpi_color_adjust *color_adjust;
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SANE_Parameters params;
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/* Options */
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SANE_Option_Descriptor opt[OPT_NUM_OPTIONS];
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Option_Value val[OPT_NUM_OPTIONS];
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unsigned int video_mode; /* 0x0100 = VGA, 0x0000 = CIF,
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* 0x0300 = QVGA, 0x0200 = QCIF*/
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unsigned int video_status; /* 0x01=start, 0x02=video, 0x04=busy, 0x08=idle */
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int SupportedModes;
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int HardwareConfig;
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int QSIF;
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int CIF;
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int VGA;
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int QVGA;
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int QCIF;
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int cwidth; /* camera width */
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int cheight;
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int subsample;
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int framecount;
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char picmsg_ps[50];
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}
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Stv680_Vidcam;
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/*--------------------------------------------------------------------------*/
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/* Debug levels.
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* Should be common to all backends. */
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#define DBG_error0 0
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#define DBG_error 1
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#define DBG_sense 2
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#define DBG_warning 3
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#define DBG_inquiry 4
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#define DBG_info 5
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#define DBG_info2 6
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#define DBG_proc 7
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#define DBG_read 8
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#define DBG_sane_init 10
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#define DBG_sane_proc 11
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#define DBG_sane_info 12
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#define DBG_sane_option 13
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/*--------------------------------------------------------*/
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static SANE_Byte red_g[256] = {
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0, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
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18, 18, 18, 18, 18, 18, 18, 25, 30, 35, 38, 42,
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44, 47, 50, 53, 54, 57, 59, 61, 63, 65, 67, 69,
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71, 71, 73, 75, 77, 78, 80, 81, 82, 84, 85, 87,
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88, 89, 90, 91, 93, 94, 95, 97, 98, 98, 99, 101,
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102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113,
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114, 115, 116, 116, 117, 118, 119, 120, 121, 122, 123, 124,
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125, 125, 126, 127, 128, 129, 129, 130, 131, 132, 133, 134,
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134, 135, 135, 136, 137, 138, 139, 140, 140, 141, 142, 143,
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143, 143, 144, 145, 146, 147, 147, 148, 149, 150, 150, 151,
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152, 152, 152, 153, 154, 154, 155, 156, 157, 157, 158, 159,
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159, 160, 161, 161, 161, 162, 163, 163, 164, 165, 165, 166,
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167, 167, 168, 168, 169, 170, 170, 170, 171, 171, 172, 173,
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173, 174, 174, 175, 176, 176, 177, 178, 178, 179, 179, 179,
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180, 180, 181, 181, 182, 183, 183, 184, 184, 185, 185, 186,
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187, 187, 188, 188, 188, 188, 189, 190, 190, 191, 191, 192,
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192, 193, 193, 194, 195, 195, 196, 196, 197, 197, 197, 197,
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198, 198, 199, 199, 200, 201, 201, 202, 202, 203, 203, 204,
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204, 205, 205, 206, 206, 206, 206, 207, 207, 208, 208, 209,
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209, 210, 210, 211, 211, 212, 212, 213, 213, 214, 214, 215,
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215, 215, 215, 216, 216, 217, 217, 218, 218, 218, 219, 219,
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220, 220, 221, 221
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};
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static SANE_Byte green_g[256] = {
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0, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
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21, 21, 21, 21, 21, 21, 21, 28, 34, 39, 43, 47,
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50, 53, 56, 59, 61, 64, 66, 68, 71, 73, 75, 77,
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79, 80, 82, 84, 86, 87, 89, 91, 92, 94, 95, 97,
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98, 100, 101, 102, 104, 105, 106, 108, 109, 110, 111, 113,
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114, 115, 116, 117, 118, 120, 121, 122, 123, 124, 125, 126,
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127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138,
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139, 140, 141, 142, 143, 144, 144, 145, 146, 147, 148, 149,
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150, 151, 151, 152, 153, 154, 155, 156, 156, 157, 158, 159,
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160, 160, 161, 162, 163, 164, 164, 165, 166, 167, 167, 168,
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169, 170, 170, 171, 172, 172, 173, 174, 175, 175, 176, 177,
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177, 178, 179, 179, 180, 181, 182, 182, 183, 184, 184, 185,
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186, 186, 187, 187, 188, 189, 189, 190, 191, 191, 192, 193,
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193, 194, 194, 195, 196, 196, 197, 198, 198, 199, 199, 200,
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201, 201, 202, 202, 203, 204, 204, 205, 205, 206, 206, 207,
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208, 208, 209, 209, 210, 210, 211, 212, 212, 213, 213, 214,
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214, 215, 215, 216, 217, 217, 218, 218, 219, 219, 220, 220,
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221, 221, 222, 222, 223, 224, 224, 225, 225, 226, 226, 227,
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227, 228, 228, 229, 229, 230, 230, 231, 231, 232, 232, 233,
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233, 234, 234, 235, 235, 236, 236, 237, 237, 238, 238, 239,
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239, 240, 240, 241, 241, 242, 242, 243, 243, 243, 244, 244,
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245, 245, 246, 246
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};
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static SANE_Byte blue_g[256] = {
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0, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
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23, 23, 23, 23, 23, 23, 23, 30, 37, 42, 47, 51,
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55, 58, 61, 64, 67, 70, 72, 74, 78, 80, 82, 84,
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86, 88, 90, 92, 94, 95, 97, 100, 101, 103, 104, 106,
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107, 110, 111, 112, 114, 115, 116, 118, 119, 121, 122, 124,
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125, 126, 127, 128, 129, 132, 133, 134, 135, 136, 137, 138,
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139, 140, 141, 143, 144, 145, 146, 147, 148, 149, 150, 151,
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152, 154, 155, 156, 157, 158, 158, 159, 160, 161, 162, 163,
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165, 166, 166, 167, 168, 169, 170, 171, 171, 172, 173, 174,
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176, 176, 177, 178, 179, 180, 180, 181, 182, 183, 183, 184,
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185, 187, 187, 188, 189, 189, 190, 191, 192, 192, 193, 194,
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194, 195, 196, 196, 198, 199, 200, 200, 201, 202, 202, 203,
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204, 204, 205, 205, 206, 207, 207, 209, 210, 210, 211, 212,
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212, 213, 213, 214, 215, 215, 216, 217, 217, 218, 218, 220,
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221, 221, 222, 222, 223, 224, 224, 225, 225, 226, 226, 227,
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228, 228, 229, 229, 231, 231, 232, 233, 233, 234, 234, 235,
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235, 236, 236, 237, 238, 238, 239, 239, 240, 240, 242, 242,
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243, 243, 244, 244, 245, 246, 246, 247, 247, 248, 248, 249,
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249, 250, 250, 251, 251, 253, 253, 254, 254, 255, 255, 255,
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
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255, 255, 255, 255
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};
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