bool
ImageBufAlgo::transpose (ImageBuf &dst, const ImageBuf &src,
ROI roi, int nthreads)
{
pvt::LoggedTimer logtime("IBA::transpose");
if (! roi.defined())
roi = get_roi (src.spec());
roi.chend = std::min (roi.chend, src.nchannels());
ROI dst_roi (roi.ybegin, roi.yend, roi.xbegin, roi.xend,
roi.zbegin, roi.zend, roi.chbegin, roi.chend);
bool dst_initialized = dst.initialized();
if (! IBAprep (dst_roi, &dst))
return false;
if (! dst_initialized) {
ROI r = src.roi_full();
ROI dst_roi_full (r.ybegin, r.yend, r.xbegin, r.xend,
r.zbegin, r.zend, r.chbegin, r.chend);
dst.set_roi_full (dst_roi_full);
}
bool ok;
if (dst.spec().format == src.spec().format) {
OIIO_DISPATCH_TYPES (ok, "transpose", transpose_, dst.spec().format,
dst, src, roi, nthreads);
} else {
OIIO_DISPATCH_COMMON_TYPES2 (ok, "transpose", transpose_, dst.spec().format,
src.spec().format, dst, src, roi, nthreads);
}
return ok;
}
bool
ImageBufAlgo::cut (ImageBuf &dst, const ImageBuf &src,
ROI roi, int nthreads)
{
bool ok = crop (dst, src, roi, nthreads);
ASSERT(ok);
if (! ok)
return false;
// Crop did the heavy lifting of copying the roi of pixels from src to
// dst, but now we need to make it look like we cut that rectangle out
// and repositioned it at the origin.
dst.specmod().x = 0;
dst.specmod().y = 0;
dst.specmod().z = 0;
dst.set_roi_full (dst.roi());
return true;
}
bool
ImageBufAlgo::rotate270 (ImageBuf &dst, const ImageBuf &src,
ROI roi, int nthreads)
{
if (&dst == &src) { // Handle in-place operation
ImageBuf tmp;
tmp.swap (const_cast<ImageBuf&>(src));
return rotate270 (dst, tmp, roi, nthreads);
}
pvt::LoggedTimer logtime("IBA::rotate270");
ROI src_roi = roi.defined() ? roi : src.roi();
ROI src_roi_full = src.roi_full();
// Rotated full ROI swaps width and height, and keeps its origin
// where the original origin was.
ROI dst_roi_full (src_roi_full.xbegin, src_roi_full.xbegin+src_roi_full.height(),
src_roi_full.ybegin, src_roi_full.ybegin+src_roi_full.width(),
src_roi_full.zbegin, src_roi_full.zend,
src_roi_full.chbegin, src_roi_full.chend);
ROI dst_roi (src_roi.ybegin, src_roi.yend,
src_roi_full.xend-src_roi.xend,
src_roi_full.xend-src_roi.xbegin,
src_roi.zbegin, src_roi.zend,
src_roi.chbegin, src_roi.chend);
ASSERT (dst_roi.width() == src_roi.height() &&
dst_roi.height() == src_roi.width());
bool dst_initialized = dst.initialized();
if (! IBAprep (dst_roi, &dst, &src))
return false;
if (! dst_initialized)
dst.set_roi_full (dst_roi_full);
bool ok;
OIIO_DISPATCH_COMMON_TYPES2 (ok, "rotate270", rotate270_,
dst.spec().format, src.spec().format,
dst, src, dst_roi, nthreads);
return ok;
}
bool
ImageBufAlgo::transpose (ImageBuf &dst, const ImageBuf &src,
ROI roi, int nthreads)
{
if (! roi.defined())
roi = get_roi (src.spec());
roi.chend = std::min (roi.chend, src.nchannels());
ROI dst_roi (roi.ybegin, roi.yend, roi.xbegin, roi.xend,
roi.zbegin, roi.zend, roi.chbegin, roi.chend);
bool dst_initialized = dst.initialized();
IBAprep (dst_roi, &dst);
if (! dst_initialized) {
ROI r = src.roi_full();
ROI dst_roi_full (r.ybegin, r.yend, r.xbegin, r.xend,
r.zbegin, r.zend, r.chbegin, r.chend);
dst.set_roi_full (dst_roi_full);
}
bool ok;
OIIO_DISPATCH_TYPES2 (ok, "transpose", transpose_, dst.spec().format,
src.spec().format, dst, src, roi, nthreads);
return ok;
}
