void KisGmicSimpleConvertor::convertFromGmicFast(gmic_image<float>& gmicImage, KisPaintDeviceSP dst, float gmicUnitValue)
{
const KoColorSpace * dstColorSpace = dst->colorSpace();
KoColorTransformation * gmicToDstPixelFormat = createTransformationFromGmic(dstColorSpace,gmicImage._spectrum,gmicUnitValue);
if (gmicToDstPixelFormat == 0)
{
dbgPlugins << "Fall-back to slow color conversion";
convertFromGmicImage(gmicImage, dst, gmicUnitValue);
return;
}
qint32 x = 0;
qint32 y = 0;
qint32 width = gmicImage._width;
qint32 height = gmicImage._height;
width = width < 0 ? 0 : width;
height = height < 0 ? 0 : height;
const KoColorSpace *rgbaFloat32bitcolorSpace = KoColorSpaceRegistry::instance()->colorSpace(RGBAColorModelID.id(),
Float32BitsColorDepthID.id(),
KoColorSpaceRegistry::instance()->rgb8()->profile());
// this function always convert to rgba or rgb with various color depth
quint32 dstNumChannels = rgbaFloat32bitcolorSpace->channelCount();
// number of channels that we will copy
quint32 numChannels = gmicImage._spectrum;
// gmic image has 4, 3, 2, 1 channel
QVector<float *> planes(dstNumChannels);
int channelOffset = gmicImage._width * gmicImage._height;
for (unsigned int channelIndex = 0; channelIndex < gmicImage._spectrum; channelIndex++)
{
planes[channelIndex] = gmicImage._data + channelOffset * channelIndex;
}
for (unsigned int channelIndex = gmicImage._spectrum; channelIndex < dstNumChannels; channelIndex++)
{
planes[channelIndex] = 0; //turn off
}
qint32 dataY = 0;
qint32 imageY = y;
qint32 rowsRemaining = height;
const qint32 floatPixelSize = rgbaFloat32bitcolorSpace->pixelSize();
KisRandomAccessorSP it = dst->createRandomAccessorNG(dst->x(), dst->y()); // 0,0
int tileWidth = it->numContiguousColumns(dst->x());
int tileHeight = it->numContiguousRows(dst->y());
Q_ASSERT(tileWidth == 64);
Q_ASSERT(tileHeight == 64);
quint8 * convertedTile = new quint8[rgbaFloat32bitcolorSpace->pixelSize() * tileWidth * tileHeight];
// grayscale and rgb case does not have alpha, so let's fill 4th channel of rgba tile with opacity opaque
if (gmicImage._spectrum == 1 || gmicImage._spectrum == 3)
{
quint32 nPixels = tileWidth * tileHeight;
quint32 pixelIndex = 0;
KoRgbF32Traits::Pixel* srcPixel = reinterpret_cast<KoRgbF32Traits::Pixel*>(convertedTile);
while (pixelIndex < nPixels)
{
srcPixel->alpha = gmicUnitValue;
++srcPixel;
++pixelIndex;
}
}
while (rowsRemaining > 0) {
qint32 dataX = 0;
qint32 imageX = x;
qint32 columnsRemaining = width;
qint32 numContiguousImageRows = it->numContiguousRows(imageY);
qint32 rowsToWork = qMin(numContiguousImageRows, rowsRemaining);
while (columnsRemaining > 0) {
qint32 numContiguousImageColumns = it->numContiguousColumns(imageX);
qint32 columnsToWork = qMin(numContiguousImageColumns, columnsRemaining);
const qint32 dataIdx = dataX + dataY * width;
const qint32 tileRowStride = (tileWidth - columnsToWork) * floatPixelSize;
quint8 *tileItStart = convertedTile;
// copy gmic channels to float tile
qint32 channelSize = sizeof(float);
for(quint32 i=0; i<numChannels; i++)
{
float * planeIt = planes[i] + dataIdx;
qint32 dataStride = (width - columnsToWork);
quint8* tileIt = tileItStart;
for (qint32 row = 0; row < rowsToWork; row++) {
for (int col = 0; col < columnsToWork; col++) {
memcpy(tileIt, planeIt, channelSize);
tileIt += floatPixelSize;
planeIt += 1;
}
tileIt += tileRowStride;
planeIt += dataStride;
}
tileItStart += channelSize;
}
it->moveTo(imageX, imageY);
quint8 *dstTileItStart = it->rawData();
tileItStart = convertedTile; // back to the start of the converted tile
// copy float tile to dst colorspace based on input colorspace (rgb or grayscale)
for (qint32 row = 0; row < rowsToWork; row++)
{
gmicToDstPixelFormat->transform(tileItStart, dstTileItStart, columnsToWork);
dstTileItStart += dstColorSpace->pixelSize() * tileWidth;
tileItStart += floatPixelSize * tileWidth;
}
imageX += columnsToWork;
dataX += columnsToWork;
columnsRemaining -= columnsToWork;
}
imageY += rowsToWork;
dataY += rowsToWork;
rowsRemaining -= rowsToWork;
}
delete [] convertedTile;
delete gmicToDstPixelFormat;
}
void KisPaintDeviceTest::testWrappedRandomAccessor()
{
const KoColorSpace *cs = KoColorSpaceRegistry::instance()->rgb8();
KisPaintDeviceSP dev = createWrapAroundPaintDevice(cs);
KoColor c1(Qt::red, cs);
KoColor c2(Qt::green, cs);
dev->setPixel(3, 3, c1);
dev->setPixel(18, 18, c2);
const int pixelSize = dev->pixelSize();
int x;
int y;
x = 3;
y = 3;
KisRandomAccessorSP dstIt = dev->createRandomAccessorNG(x, y);
QVERIFY(!memcmp(dstIt->rawData(), c1.data(), pixelSize));
QCOMPARE(dstIt->numContiguousColumns(x), 17);
QCOMPARE(dstIt->numContiguousRows(y), 17);
x = 23;
y = 23;
dstIt->moveTo(x, y);
QVERIFY(!memcmp(dstIt->rawData(), c1.data(), pixelSize));
QCOMPARE(dstIt->numContiguousColumns(x), 17);
QCOMPARE(dstIt->numContiguousRows(y), 17);
x = 3;
y = 23;
dstIt->moveTo(x, y);
QVERIFY(!memcmp(dstIt->rawData(), c1.data(), pixelSize));
QCOMPARE(dstIt->numContiguousColumns(x), 17);
QCOMPARE(dstIt->numContiguousRows(y), 17);
x = 23;
y = 3;
dstIt->moveTo(x, y);
QVERIFY(!memcmp(dstIt->rawData(), c1.data(), pixelSize));
QCOMPARE(dstIt->numContiguousColumns(x), 17);
QCOMPARE(dstIt->numContiguousRows(y), 17);
x = -17;
y = 3;
dstIt->moveTo(x, y);
QVERIFY(!memcmp(dstIt->rawData(), c1.data(), pixelSize));
QCOMPARE(dstIt->numContiguousColumns(x), 17);
QCOMPARE(dstIt->numContiguousRows(y), 17);
x = 3;
y = -17;
dstIt->moveTo(x, y);
QVERIFY(!memcmp(dstIt->rawData(), c1.data(), pixelSize));
QCOMPARE(dstIt->numContiguousColumns(x), 17);
QCOMPARE(dstIt->numContiguousRows(y), 17);
x = -17;
y = -17;
dstIt->moveTo(x, y);
QVERIFY(!memcmp(dstIt->rawData(), c1.data(), pixelSize));
QCOMPARE(dstIt->numContiguousColumns(x), 17);
QCOMPARE(dstIt->numContiguousRows(y), 17);
}