code_app/sdk/scannerlib/HGScannerLib.cpp

#include "HGScannerLib.h"
#include "base/HGInc.h"
#include "base/HGImage.h"
#include "imgfmt/HGImgFmt.h"
#include "imgproc/HGOcr.h"
#include "HGString.h"
#include "HGLibDeviceImpl.hpp"

typedef struct
{
	HGUInt size; /* 结构体大小 */
	HGUInt jpegQuality; /* jpeg下有效, 0-100 */
	HGUInt tiffCompression; /* tiff下有效, HGLIB_TIFFCOMPRESSION_* */
	HGUInt tiffJpegQuality; /* tiff且HGLIB_TIFFCOMPRESSION_JPEG下有效, 0-100 */
	HGBool ocr; /* 是否OCR，pdf和ofd格式有效 */
}HGLibSaveImageParam_V1;

HGLibImage HGAPI HGLib_LoadImage(const HGChar* filePath)
{
	if (NULL == filePath)
	{
		return NULL;
	}

	HGImage image = NULL;
	HGImgFmt_LoadImage(Utf8ToStdString(filePath).c_str(), 0, NULL, 0, HGBASE_IMGORIGIN_TOP, &image);
	return (HGLibImage)image;
}

HGBool HGAPI HGLib_SaveImage(HGLibImage image, const HGChar* savePath, const HGLibSaveImageParam* saveParam)
{
	if (NULL == image || NULL == savePath)
	{
		return HGFALSE;
	}

	HGUInt fmtType = 0;
	HGImgFmt_GetImgFmtTypeFromFileName(Utf8ToStdString(savePath).c_str(), &fmtType);
	if (fmtType < HGIMGFMT_TYPE_JPEG || fmtType > HGIMGFMT_TYPE_GIF)
	{
		return HGFALSE;
	}

	if (NULL == saveParam)
	{
		return (HGBASE_ERR_OK == HGImgFmt_SaveImage((HGImage)image, fmtType, NULL, Utf8ToStdString(savePath).c_str()));
	}

	if (saveParam->size == sizeof(HGLibSaveImageParam_V1))
	{
		const HGLibSaveImageParam_V1* saveParamV1 = (const HGLibSaveImageParam_V1*)saveParam;
		if ((HGIMGFMT_TYPE_PDF == fmtType || HGIMGFMT_TYPE_OFD == fmtType) && saveParamV1->ocr)
		{
			HGOCRMgr ocrMgr = NULL;
			HGImgProc_CreateOCRMgr(&ocrMgr);
			if (NULL == ocrMgr)
			{
				return HGFALSE;
			}

			HGBool ret = (HGBASE_ERR_OK == HGImgProc_ImageOCRToFile(ocrMgr, (HGImage)image, 0, Utf8ToStdString(savePath).c_str()));
			HGImgProc_DestroyOCRMgr(ocrMgr);
			return ret;
		}

		HGImgFmtSaveInfo saveInfo;
		saveInfo.jpegQuality = saveParamV1->jpegQuality;
		saveInfo.tiffCompression = 0;
		if (HGLIB_TIFFCOMPRESSION_NONE == saveParamV1->tiffCompression)
			saveInfo.tiffCompression = HGIMGFMT_TIFFCOMP_NONE;
		else if (HGLIB_TIFFCOMPRESSION_CCITTFAX4 == saveParamV1->tiffCompression)
			saveInfo.tiffCompression = HGIMGFMT_TIFFCOMP_CCITTFAX4;
		else if (HGLIB_TIFFCOMPRESSION_LZW == saveParamV1->tiffCompression)
			saveInfo.tiffCompression = HGIMGFMT_TIFFCOMP_LZW;
		else if (HGLIB_TIFFCOMPRESSION_JPEG == saveParamV1->tiffCompression)
			saveInfo.tiffCompression = HGIMGFMT_TIFFCOMP_JPEG;
		saveInfo.tiffJpegQuality = saveParamV1->tiffJpegQuality;

		return (HGBASE_ERR_OK == HGImgFmt_SaveImage((HGImage)image, fmtType, &saveInfo, Utf8ToStdString(savePath).c_str()));
	}

	return HGFALSE;
}

HGBool HGAPI HGLib_ReleaseImage(HGLibImage image)
{
	if (NULL == image)
	{
		return HGFALSE;
	}

	HGBase_DestroyImage((HGImage)image);
	return HGTRUE;
}

HGBool HGAPI HGLib_InitDevice(HGLibDeviceHotPlugEventFunc func, HGPointer param)
{
	return HGLibDeviceImpl::Init(func, param);
}

HGBool HGAPI HGLib_DeinitDevice()
{
	return HGLibDeviceImpl::Deinit();
}

HGChar** HGAPI HGLib_GetDeviceNameList()
{
	return HGLibDeviceImpl::GetNameList();
}

HGBool HGAPI HGLib_ReleaseDeviceNameList(HGChar** deviceName)
{
	return HGLibDeviceImpl::ReleaseNameList(deviceName);
}

HGLibDevice HGAPI HGLib_OpenDevice(const HGChar* deviceName)
{
	return (HGLibDevice)HGLibDeviceImpl::Open(deviceName);
}

HGBool HGAPI HGLib_CloseDevice(HGLibDevice device)
{
	if (NULL == device)
	{
		return HGFALSE;
	}

	HGLibDeviceImpl* deviceImpl = (HGLibDeviceImpl*)device;
	return deviceImpl->Close();
}

HGBool HGAPI HGLib_SetDeviceParam(HGLibDevice device, const HGLibDeviceSetParam* param, HGUInt count)
{
	if (NULL == device)
	{
		return HGFALSE;
	}

	HGLibDeviceImpl* deviceImpl = (HGLibDeviceImpl*)device;
	return deviceImpl->SetParam(param, count);
}

HGLibDeviceGetParamGroup* HGAPI HGLib_GetDeviceParamGroupList(HGLibDevice device, HGUInt* count)
{
	if (NULL == device)
	{
		return NULL;
	}

	HGLibDeviceImpl* deviceImpl = (HGLibDeviceImpl*)device;
	return deviceImpl->GetParamGroupList(count);
}

HGBool HGAPI HGLib_ReleaseDeviceParamGroupList(HGLibDeviceGetParamGroup* paramGroup, HGUInt count)
{
	return HGLibDeviceImpl::ReleaseParamGroupList(paramGroup, count);
}

HGBool HGAPI HGLib_ResetDeviceParam(HGLibDevice device)
{
	if (NULL == device)
	{
		return HGFALSE;
	}

	HGLibDeviceImpl* deviceImpl = (HGLibDeviceImpl*)device;
	return deviceImpl->ResetParam();
}

HGBool HGAPI HGLib_StartDeviceScan(HGLibDevice device, HGLibDeviceScanEventFunc eventFunc, HGPointer eventParam,
	HGLibDeviceScanImageFunc imageFunc, HGPointer imageParam)
{
	if (NULL == device)
	{
		return HGFALSE;
	}

	HGLibDeviceImpl* deviceImpl = (HGLibDeviceImpl*)device;
	return deviceImpl->StartScan(eventFunc, eventParam, imageFunc, imageParam);
}

HGBool HGAPI HGLib_StopDeviceScan(HGLibDevice device)
{
	if (NULL == device)
	{
		return HGFALSE;
	}

	HGLibDeviceImpl* deviceImpl = (HGLibDeviceImpl*)device;
	return deviceImpl->StopScan();
}