diff options
Diffstat (limited to 'backend/p5.c')
| -rw-r--r-- | backend/p5.c | 64 |
1 files changed, 26 insertions, 38 deletions
diff --git a/backend/p5.c b/backend/p5.c index 30ab41e..d4b5724 100644 --- a/backend/p5.c +++ b/backend/p5.c @@ -1,6 +1,6 @@ /* sane - Scanner Access Now Easy. - Copyright (C) 2009-12 Stéphane Voltz <stef.dev@free.fr> + Copyright (C) 2009-12 Stéphane Voltz <stef.dev@free.fr> This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as @@ -32,7 +32,7 @@ * \section sane_api SANE API * * \subsection sane_flow sane flow - SANE FLOW + SANE FLOW - sane_init() : initialize backend, attach scanners. - sane_get_devices() : query list of scanner devices, backend must probe for new devices. @@ -60,7 +60,7 @@ /** * Import directly the low level part needed to - * operate scanner. The alternative is to prefix all public functions + * operate scanner. The alternative is to prefix all public functions * with sanei_p5_ ,and have all the functions prototyped in * p5_device.h . */ @@ -72,7 +72,7 @@ static int init_count = 0; /** - * NULL terminated list of opened frontend sessions. Sessions are + * NULL terminated list of opened frontend sessions. Sessions are * inserted here on sane_open() and removed on sane_close(). */ static P5_Session *sessions = NULL; @@ -85,7 +85,7 @@ static P5_Session *sessions = NULL; static P5_Device *devices = NULL; /** - * NULL terminated list of devices needed by sane_get_devices(), since + * NULL terminated list of devices needed by sane_get_devices(), since * the result returned must stay consistent until next call. */ static const SANE_Device **devlist = 0; @@ -112,18 +112,6 @@ static SANE_Range y_range = { SANE_FIX (0.0) /* no quantization */ }; -static const SANE_Range u8_range = { - 0, /* minimum */ - 255, /* maximum */ - 0 /* no quantization */ -}; - -static const SANE_Range threshold_percentage_range = { - SANE_FIX (0), /* minimum */ - SANE_FIX (100), /* maximum */ - SANE_FIX (1) /* quantization */ -}; - /** * finds the maximum string length in a string array. */ @@ -155,7 +143,7 @@ static P5_Config p5cfg; /** * Called by SANE initially. - * + * * From the SANE spec: * This function must be called before any other SANE function can be * called. The behavior of a SANE backend is undefined if this @@ -195,7 +183,7 @@ sane_init (SANE_Int * version_code, SANE_Auth_Callback authorize) /** * Called by SANE to find out about supported devices. - * + * * From the SANE spec: * This function can be used to query the list of devices that are * available. If the function executes successfully, it stores a @@ -208,7 +196,7 @@ sane_init (SANE_Int * version_code, SANE_Auth_Callback authorize) * returned (devices directly attached to the machine that SANE is * running on). If it is false, the device list includes all remote * devices that are accessible to the SANE library. - * + * * SANE does not require that this function is called before a * sane_open() call is performed. A device name may be specified * explicitly by a user which would make it unnecessary and @@ -239,7 +227,7 @@ sane_get_devices (const SANE_Device *** device_list, SANE_Bool local_only) /** * Since sane_get_devices() may be called repeatedly to detect new devices, - * the device detection must be run at each call. We are handling + * the device detection must be run at each call. We are handling * hot-plugging : we probe for devices plugged since sane_init() was called. */ probe_p5_devices (); @@ -327,7 +315,7 @@ sane_get_devices (const SANE_Device *** device_list, SANE_Bool local_only) * the name of the backend as the device name, in this case the first * available device will also be used. * @param name name of the device to open - * @param handle opaque pointer where to store the pointer of + * @param handle opaque pointer where to store the pointer of * the opened P5_Session * @return SANE_STATUS_GOOD on success */ @@ -383,7 +371,7 @@ sane_open (SANE_String_Const name, SANE_Handle * handle) /* device initialization */ if (device->initialized == SANE_FALSE) { - /** + /** * call to hardware initialization function here. */ device->fd = open_pp (device->name); @@ -690,7 +678,7 @@ get_option_value (P5_Session * s, int option, void *val) /** * Gets or sets an option value. - * + * * From the SANE spec: * This function is used to set or inquire the current value of option * number n of the device represented by handle h. The manner in which @@ -701,7 +689,7 @@ get_option_value (P5_Session * s, int option, void *val) * area pointed to by v must be big enough to hold the entire option * value (determined by member size in the corresponding option * descriptor). - * + * * The only exception to this rule is that when setting the value of a * string option, the string pointed to by argument v may be shorter * since the backend will stop reading the option value upon @@ -917,8 +905,8 @@ sane_start (SANE_Handle handle) /** @brief compute scan parameters * This function computes two set of parameters. The one for the SANE's standard - * and the other for the hardware. Among these parameters are the bit depth, total - * number of lines, total number of columns, extra line to read for data reordering... + * and the other for the hardware. Among these parameters are the bit depth, total + * number of lines, total number of columns, extra line to read for data reordering... * @param session fronted session to compute final scan parameters * @return SANE_STATUS_GOOD on success */ @@ -1086,7 +1074,7 @@ compute_parameters (P5_Session * session) * completion of that request. Outside of that window, the returned * values are best-effort estimates of what the parameters will be * when sane_start() gets invoked. - * + * * Calling this function before a scan has actually started allows, * for example, to get an estimate of how big the scanned image will * be. The parameters passed to this function are the handle of the @@ -1113,7 +1101,7 @@ sane_get_parameters (SANE_Handle handle, SANE_Parameters * params) /** * Called by SANE to read data. - * + * * From the SANE spec: * This function is used to read image data from the device * represented by handle h. Argument buf is a pointer to a memory @@ -1121,7 +1109,7 @@ sane_get_parameters (SANE_Handle handle, SANE_Parameters * params) * returned is stored in *len. A backend must set this to zero when * the call fails (i.e., when a status other than SANE_STATUS_GOOD is * returned). - * + * * When the call succeeds, the number of bytes returned can be * anywhere in the range from 0 to maxlen bytes. * @@ -1343,7 +1331,7 @@ sane_read (SANE_Handle handle, SANE_Byte * buf, /** - * Cancels a scan. + * Cancels a scan. * * From the SANE spec: * This function is used to immediately or as quickly as possible @@ -1393,7 +1381,7 @@ sane_cancel (SANE_Handle handle) /** * Ends use of the session. - * + * * From the SANE spec: * This function terminates the association between the device handle * passed in argument h and the device it represents. If the device is @@ -1476,7 +1464,7 @@ sane_close (SANE_Handle handle) /** * Terminates the backend. - * + * * From the SANE spec: * This function must be called to terminate use of a backend. The * function will first close all device handles that still might be @@ -1542,7 +1530,7 @@ sane_exit (void) /** @brief probe for all supported devices - * This functions tries to probe if any of the supported devices of + * This functions tries to probe if any of the supported devices of * the backend is present. Each detected device will be added to the * 'devices' list */ @@ -1609,10 +1597,10 @@ config_attach (SANEI_Config * config, const char *devname) * using an attach function with a config parameter */ config = config; - /* the devname has been processed and is ready to be used + /* the devname has been processed and is ready to be used * directly. The config struct contains all the configuration data for * the corresponding device. Since there is no ressources common to each - * backends regarding parallel port, we can directly call the attach + * backends regarding parallel port, we can directly call the attach * function. */ attach_p5 (devname, config); @@ -1661,7 +1649,7 @@ attach_p5 (const char *devicename, SANEI_Config * config) /** * do physical probe of the device here. In case the device is recognized, - * we allocate a device struct and give it options and model. + * we allocate a device struct and give it options and model. * Else we return SANE_STATUS_UNSUPPORTED. */ model = probe (devicename); @@ -1772,7 +1760,7 @@ init_options (struct P5_Session *session) SANE_CONSTRAINT_NONE; session->options[OPT_PREVIEW].value.w = SANE_FALSE; - /** @brief build resolution list + /** @brief build resolution list * We merge xdpi and ydpi list to provide only one resolution option control. * This is the most common case for backends and fronteds and give 'square' * pixels. The SANE API allow to control x and y dpi independantly, but this is |