#include "sane/sanei_backend.h"
#include "sane/sane_ex.h"
//#include <stdlib.h>
//#include <string>
//#include "sane_hg_mdw.h"


extern SANE_Status inner_sane_init(SANE_Int* version_code, SANE_Auth_Callback authorize);
extern void inner_sane_exit(void);
extern SANE_Status inner_sane_get_devices(const SANE_Device*** device_list, SANE_Bool local_only);
extern SANE_Status inner_sane_open(SANE_String_Const devicename, SANE_Handle* handle);
extern void inner_sane_close(SANE_Handle handle);
extern const SANE_Option_Descriptor* inner_sane_get_option_descriptor(SANE_Handle handle, const void* option);
extern SANE_Status inner_sane_control_option(SANE_Handle handle, const void* option, SANE_Action action, void* value, SANE_Int* info);
extern SANE_Status inner_sane_get_parameters(SANE_Handle handle, SANE_Parameters* params);
extern SANE_Status inner_sane_start(SANE_Handle handle);
extern SANE_Status inner_sane_read(SANE_Handle handle, SANE_Byte* data, SANE_Int max_length, SANE_Int* length);
extern void inner_sane_cancel(SANE_Handle handle);
extern SANE_Status inner_sane_set_io_mode(SANE_Handle handle, SANE_Bool non_blocking);
extern SANE_Status inner_sane_get_select_fd(SANE_Handle handle, SANE_Int* fd);
extern SANE_String_Const inner_sane_strstatus(SANE_Status status);

extern SANE_Status inner_sane_init_ex(SANE_Int* version_code, sane_callback cb, void* param);
extern SANE_Status inner_sane_io_control(SANE_Handle h, unsigned long code, void* data, unsigned* len);
extern const char* inner_sane_err_desc(SANE_Status err);
extern SANE_Status inner_sane_read_ext(SANE_Img_Ext_Info* ext_info, SANE_Int* len);

/// <summary>
/// 导出接口
/// </summary>
SANE_Status sane_init(SANE_Int* version_code, SANE_Auth_Callback authorize)
{
	return inner_sane_init(version_code, authorize);
}
void sane_exit(void)
{
	inner_sane_exit();
}
SANE_Status sane_get_devices(const SANE_Device*** device_list, SANE_Bool local_only)
{
	return inner_sane_get_devices(device_list, local_only);
}
SANE_Status sane_open(SANE_String_Const devicename, SANE_Handle* handle)
{
	return inner_sane_open(devicename, handle);
}
void sane_close(SANE_Handle handle)
{
	inner_sane_close(handle);
}
const SANE_Option_Descriptor*
sane_get_option_descriptor(SANE_Handle handle, SANE_Int option)
{
	return inner_sane_get_option_descriptor(handle, (const void*)option);
}
SANE_Status sane_control_option(SANE_Handle handle, SANE_Int option, SANE_Action action, void* value, SANE_Int* info)
{
	return inner_sane_control_option(handle, (const void*)option, action, value, info);
}
SANE_Status sane_get_parameters(SANE_Handle handle, SANE_Parameters* params)
{
	return inner_sane_get_parameters(handle, params);
}
SANE_Status sane_start(SANE_Handle handle)
{
	return inner_sane_start(handle);
}
SANE_Status sane_read(SANE_Handle handle, SANE_Byte* data, SANE_Int max_length, SANE_Int* length)
{
	return inner_sane_read(handle, data, max_length, length);
}
void sane_cancel(SANE_Handle handle)
{
	inner_sane_cancel(handle);
}
SANE_Status sane_set_io_mode(SANE_Handle handle, SANE_Bool non_blocking)
{
	return inner_sane_set_io_mode(handle, non_blocking);
}
SANE_Status sane_get_select_fd(SANE_Handle handle, SANE_Int* fd)
{
	return inner_sane_get_select_fd(handle, fd);
}
SANE_String_Const sane_strstatus(SANE_Status status)
{
	return inner_sane_strstatus(status);
}


// extensions ...
SANE_Status sane_init_ex(SANE_Int* version_code, sane_callback cb, void* param)
{
	return inner_sane_init_ex(version_code, cb, param);
}
SANE_Status sane_io_control(SANE_Handle h, unsigned long code, void* data, unsigned* len)
{
	return inner_sane_io_control(h, code, data, len);
}
const char* sane_err_desc(SANE_Status err)
{
	return inner_sane_err_desc(err);
}
const SANE_Option_Descriptor*
sane_get_option_descriptor_ex(SANE_Handle handle, const char* option)
{
	return inner_sane_get_option_descriptor(handle, (const void*)option);
}
SANE_Status sane_control_option_ex(SANE_Handle handle, const char* option, SANE_Action action, void* value, SANE_Int* info)
{
	return inner_sane_control_option(handle, (const void*)option, action, value, info);
}
SANE_Status sane_read_ext_info(SANE_Img_Ext_Info* ext_info, SANE_Int* len)
{
	return inner_sane_read_ext(ext_info, len);
}