2024-11-06 06:46:35 +08:00

89 lines
2.9 KiB
C++

#include <winrt/Windows.Foundation.h>
#include <winrt/Windows.Storage.Pickers.h>
#include <winrt/Windows.Storage.Streams.h>
#include <winrt/Windows.Graphics.Imaging.h>
#include <winrt/Windows.Media.FaceAnalysis.h>
#include <winrt/Windows.Media.Ocr.h>
#include <winrt/Windows.Foundation.Collections.h>
#include <winrt/Windows.Devices.Enumeration.h>
#include <winrt/Windows.Media.Devices.h>
#include <winrt/Windows.Security.Cryptography.h>
#include <winrt/Windows.Globalization.h>
using namespace winrt;
using namespace Windows::Foundation;
using namespace Windows::Storage;
using namespace Windows::Storage::Streams;
using namespace Windows::Graphics::Imaging;
using namespace Windows::Media::Ocr;
using namespace Windows::Devices::Enumeration;
using namespace Windows::Media::Devices;
using namespace Windows::Security::Cryptography;
using namespace Windows::Globalization;
using namespace Windows::Foundation::Collections;
DECLARE_API bool check_language_valid(wchar_t *language)
{
OcrEngine ocrEngine = OcrEngine::TryCreateFromUserProfileLanguages();
std::wstring l = language;
try
{
Language language1(l);
return ocrEngine.IsLanguageSupported(language1);
}
catch (...)
{
return false;
}
}
DECLARE_API void getlanguagelist(void(*cb)(LPCWSTR))
{
OcrEngine ocrEngine = OcrEngine::TryCreateFromUserProfileLanguages();
auto languages = ocrEngine.AvailableRecognizerLanguages();
for (auto &&language : languages)
{
auto lang = language.LanguageTag();
cb(lang.c_str());
}
}
DECLARE_API void OCR(void *ptr, size_t size, wchar_t *lang, wchar_t *space, void (*cb)(int, int, int, int, LPCWSTR))
{
IBuffer buffer = CryptographicBuffer::CreateFromByteArray(
winrt::array_view<uint8_t>(static_cast<uint8_t *>(ptr), size));
InMemoryRandomAccessStream memoryStream;
memoryStream.WriteAsync(buffer).get();
BitmapDecoder decoder = BitmapDecoder::CreateAsync(memoryStream).get();
SoftwareBitmap softwareBitmap = decoder.GetSoftwareBitmapAsync().get();
std::wstring l = lang;
Language language(l);
OcrEngine ocrEngine = OcrEngine::TryCreateFromLanguage(language);
OcrResult ocrResult = ocrEngine.RecognizeAsync(softwareBitmap).get();
auto res = ocrResult.Lines();
for (auto line : res)
{
std::wstring xx = L"";
bool start = true;
unsigned int x1 = -1, x2 = 0, y1 = -1, y2 = 0;
for (auto word : line.Words())
{
if (!start)
xx += space;
start = false;
xx += word.Text();
auto &&rect = word.BoundingRect();
x1 = std::min((unsigned int)rect.X, x1);
x2 = std::max(x2, (unsigned int)(rect.X + rect.Width));
y1 = std::min((unsigned int)rect.Y, y1);
y2 = std::max(y2, (unsigned int)(rect.Y + rect.Height));
}
cb(x1,y1,x2,y2,xx.c_str());
}
}