void
RgbaLut::apply (Rgba *base,
int xStride, int yStride,
const Imath::Box2i &dataWindow) const
{
base += dataWindow.min.y * yStride;
for (int y = dataWindow.min.y; y <= dataWindow.max.y; ++y)
{
Rgba *pixel = base + dataWindow.min.x * xStride;
for (int x = dataWindow.min.x; x <= dataWindow.max.x; ++x)
{
if (_chn & WRITE_R)
pixel->r = _lut (pixel->r);
if (_chn & WRITE_G)
pixel->g = _lut (pixel->g);
if (_chn & WRITE_B)
pixel->b = _lut (pixel->b);
if (_chn & WRITE_A)
pixel->a = _lut (pixel->a);
pixel += xStride;
}
base += yStride;
}
}
void
HalfLut::apply (const Slice &data, const Imath::Box2i &dataWindow) const
{
assert (data.type == HALF);
assert (dataWindow.min.x % data.xSampling == 0);
assert (dataWindow.min.y % data.ySampling == 0);
assert ((dataWindow.max.x - dataWindow.min.x + 1) % data.xSampling == 0);
assert ((dataWindow.max.y - dataWindow.min.y + 1) % data.ySampling == 0);
char *base = data.base + data.yStride *
(dataWindow.min.y / data.ySampling);
for (int y = dataWindow.min.y;
y <= dataWindow.max.y;
y += data.ySampling)
{
char *pixel = base + data.xStride *
(dataWindow.min.x / data.xSampling);
for (int x = dataWindow.min.x;
x <= dataWindow.max.x;
x += data.xSampling)
{
*(half *)pixel = _lut (*(half *)pixel);
pixel += data.xStride;
}
base += data.yStride;
}
}
void
HalfLut::apply (half *data, int nData, int stride) const
{
while (nData)
{
*data = _lut (*data);
data += stride;
nData -= 1;
}
}
void
RgbaLut::apply (Rgba *data, int nData, int stride) const
{
while (nData)
{
if (_chn & WRITE_R)
data->r = _lut (data->r);
if (_chn & WRITE_G)
data->g = _lut (data->g);
if (_chn & WRITE_B)
data->b = _lut (data->b);
if (_chn & WRITE_A)
data->a = _lut (data->a);
data += stride;
nData -= 1;
}
}
OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_ENTER
void
HalfLut::apply (half *data, int nData, int stride) const
{
while (nData)
{
*data = _lut (*data);
data += stride;
nData -= 1;
}
}