#include "CameraImageWrapper.h"
#include <QColor>
const byte CameraImageWrapper::R_TO_GREYSCALE[256] = {
0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4,
5, 5, 5, 5, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 9,
10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 13, 13, 13,
14, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17,
18, 18, 18, 18, 18, 19, 19, 19, 19, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21,
22, 22, 22, 22, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 25, 25, 25, 25,
26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 28, 28, 28, 28, 28, 29, 29, 29, 29,
30, 30, 30, 30, 30, 31, 31, 31, 31, 31, 32, 32, 32, 32, 33, 33, 33, 33, 33,
34, 34, 34, 34, 34, 35, 35, 35, 35, 36, 36, 36, 36, 36, 37, 37, 37, 37, 37,
38, 38, 38, 38, 38, 39, 39, 39, 39, 40, 40, 40, 40, 40, 41, 41, 41, 41, 41,
42, 42, 42, 42, 43, 43, 43, 43, 43, 44, 44, 44, 44, 44, 45, 45, 45, 45, 45,
46, 46, 46, 46, 47, 47, 47, 47, 47, 48, 48, 48, 48, 48, 49, 49, 49, 49,
50, 50, 50, 50, 50, 51, 51, 51, 51, 51, 52, 52, 52, 52, 53, 53, 53, 53, 53,
54, 54, 54, 54
};
const byte CameraImageWrapper::G_TO_GREYSCALE[256] = {
0, 1, 1, 2, 3, 4, 4, 5, 6, 6, 7, 8, 9, 9, 10, 11, 11, 12, 13,
14, 14, 15, 16, 16, 17, 18, 19, 19, 20, 21, 21, 22, 23, 24, 24,
25, 26, 26, 27, 28, 29, 29, 30, 31, 31, 32, 33, 34, 34, 35,
36, 36, 37, 38, 39, 39, 40, 41, 41, 42, 43, 44, 44, 45, 46, 46, 47,
48, 49, 49, 50, 51, 51, 52, 53, 54, 54, 55, 56, 57, 57, 58, 59, 59,
60, 61, 62, 62, 63, 64, 64, 65, 66, 67, 67, 68, 69, 69, 70, 71,
72, 72, 73, 74, 74, 75, 76, 77, 77, 78, 79, 79, 80, 81, 82, 82,
83, 84, 84, 85, 86, 87, 87, 88, 89, 89, 90, 91, 92, 92, 93, 94, 94,
95, 96, 97, 97, 98, 99, 99, 100, 101, 102, 102, 103, 104, 104, 105, 106,
107, 107, 108, 109, 109, 110, 111, 112, 112, 113, 114, 114, 115, 116,
117, 117, 118, 119, 119, 120, 121, 122, 122, 123, 124, 124, 125, 126,
127, 127, 128, 129, 129, 130, 131, 132, 132, 133, 134, 134, 135, 136,
137, 137, 138, 139, 139, 140, 141, 142, 142, 143, 144, 144, 145, 146,
147, 147, 148, 149, 149, 150, 151, 152, 152, 153, 154, 154, 155, 156,
157, 157, 158, 159, 159, 160, 161, 162, 162, 163, 164, 164, 165, 166,
167, 167, 168, 169, 170, 170, 171, 172, 172, 173, 174, 175, 175, 176,
177, 177, 178, 179, 180, 180, 181, 182, 182
};
const byte CameraImageWrapper::B_TO_GREYSCALE[256] = {
0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18
};
CameraImageWrapper::CameraImageWrapper() : LuminanceSource(0,0)
{
}
CameraImageWrapper::CameraImageWrapper(const QImage &sourceImage) : LuminanceSource(sourceImage.width(), sourceImage.height())
{
updateImageAsGrayscale( sourceImage );
delegate = Ref<GreyscaleLuminanceSource>(
new GreyscaleLuminanceSource(getMatrixP(), sourceImage.width(), sourceImage.height(),0, 0, sourceImage.width(), sourceImage.height()));
}
CameraImageWrapper::CameraImageWrapper(CameraImageWrapper& otherInstance) : LuminanceSource(otherInstance.getWidth(), otherInstance.getHeight())
{
imageBytesPerRow = otherInstance.getOriginalImage();
delegate = otherInstance.getDelegate();
}
CameraImageWrapper::~CameraImageWrapper()
{
}
CameraImageWrapper *CameraImageWrapper::Factory(const QImage &sourceImage, int maxWidth, int maxHeight, bool smoothTransformation)
{
if((maxWidth != -1 && sourceImage.width() > maxWidth) || (maxHeight != -1 && sourceImage.height() > maxHeight))
{
QImage image;
image = sourceImage.scaled(
maxWidth != -1 ? maxWidth : sourceImage.width(),
maxHeight != -1 ? maxHeight : sourceImage.height(),
Qt::KeepAspectRatio,
smoothTransformation ? Qt::SmoothTransformation : Qt::FastTransformation);
return new CameraImageWrapper(image);
}
else
return new CameraImageWrapper(sourceImage);
}
ArrayRef<ArrayRef<byte> > CameraImageWrapper::getOriginalImage()
{
return imageBytesPerRow;
}
ArrayRef<byte> CameraImageWrapper::getRow(int y, ArrayRef<byte> row) const
{
if(delegate)
return delegate->getRow(y, row);
else
return getRowP(y, row);
}
ArrayRef<byte> CameraImageWrapper::getMatrix() const
{
if(delegate)
return delegate->getMatrix();
else
return getMatrixP();
}
bool CameraImageWrapper::isCropSupported() const
{
if(delegate)
return delegate->isCropSupported();
else
return LuminanceSource::isCropSupported();
}
Ref<LuminanceSource> CameraImageWrapper::crop(int left, int top, int width, int height) const
{
if(delegate)
return delegate->crop(left, top, width, height);
else
return LuminanceSource::crop(left, top, width, height);
}
bool CameraImageWrapper::isRotateSupported() const
{
if(delegate)
return delegate->isRotateSupported();
else
return LuminanceSource::isRotateSupported();
}
Ref<LuminanceSource> CameraImageWrapper::invert() const
{
if(delegate)
return delegate->invert();
else
return LuminanceSource::invert();
}
Ref<LuminanceSource> CameraImageWrapper::rotateCounterClockwise() const
{
if(delegate)
return delegate->rotateCounterClockwise();
else
return LuminanceSource::rotateCounterClockwise();
}
ArrayRef<byte> CameraImageWrapper::getRowP(int y, ArrayRef<byte> row) const
{
int width = getWidth();
if (row->size() != width)
row.reset(ArrayRef<byte>(width));
Q_ASSERT(y >= 0 && y < getHeight());
return imageBytesPerRow[y];
}
ArrayRef<byte> CameraImageWrapper::getMatrixP() const
{
return imageBytes;
}
byte CameraImageWrapper::gray(unsigned int r, unsigned int g, unsigned int b)
{
return R_TO_GREYSCALE[r] + G_TO_GREYSCALE[g] + B_TO_GREYSCALE[b];
}
void CameraImageWrapper::updateImageAsGrayscale(const QImage &origin)
{
bool needsConvesionToGrayscale = origin.format() != QImage::Format_Grayscale8;
QRgb pixel;
byte pixelGrayscale;
const int width = getWidth();
const int height = getHeight();
imageBytes = ArrayRef<byte>(height*width);
imageBytesPerRow = ArrayRef<ArrayRef<byte>>(height);
byte* m = &imageBytes[0];
for(int j=0; j<height; j++)
{
ArrayRef<byte> line(width);
for(int i=0; i<width; i++)
{
pixel = origin.pixel(i,j);
if(needsConvesionToGrayscale)
pixelGrayscale = gray(qRed(pixel),qGreen(pixel),qBlue(pixel));
else
pixelGrayscale = pixel & 0xFF;
line[i] = pixelGrayscale;
}
imageBytesPerRow[j] = line;
#if __cplusplus > 199711L
memcpy(m, line->values().data(), width);
#else
memcpy(m, &line[0], width);
#endif
m += width * sizeof(byte);
}
}
