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Split convert.cpp into smaller pieces
This commit is contained in:
Maksim Shabunin
@@ -0,0 +1,417 @@
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// This file is part of OpenCV project.
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// It is subject to the license terms in the LICENSE file found in the top-level directory
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// of this distribution and at http://opencv.org/license.html
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#include "precomp.hpp"
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#include "opencl_kernels_core.hpp"
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#include "convert.hpp"
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#include "opencv2/core/openvx/ovx_defs.hpp"
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/****************************************************************************************\
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* LUT Transform *
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\****************************************************************************************/
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namespace cv
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{
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template<typename T> static void
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LUT8u_( const uchar* src, const T* lut, T* dst, int len, int cn, int lutcn )
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{
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if( lutcn == 1 )
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{
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for( int i = 0; i < len*cn; i++ )
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dst[i] = lut[src[i]];
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}
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else
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{
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for( int i = 0; i < len*cn; i += cn )
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for( int k = 0; k < cn; k++ )
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dst[i+k] = lut[src[i+k]*cn+k];
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}
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}
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static void LUT8u_8u( const uchar* src, const uchar* lut, uchar* dst, int len, int cn, int lutcn )
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{
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LUT8u_( src, lut, dst, len, cn, lutcn );
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}
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static void LUT8u_8s( const uchar* src, const schar* lut, schar* dst, int len, int cn, int lutcn )
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{
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LUT8u_( src, lut, dst, len, cn, lutcn );
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}
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static void LUT8u_16u( const uchar* src, const ushort* lut, ushort* dst, int len, int cn, int lutcn )
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{
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LUT8u_( src, lut, dst, len, cn, lutcn );
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}
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static void LUT8u_16s( const uchar* src, const short* lut, short* dst, int len, int cn, int lutcn )
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{
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LUT8u_( src, lut, dst, len, cn, lutcn );
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}
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static void LUT8u_32s( const uchar* src, const int* lut, int* dst, int len, int cn, int lutcn )
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{
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LUT8u_( src, lut, dst, len, cn, lutcn );
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}
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static void LUT8u_32f( const uchar* src, const float* lut, float* dst, int len, int cn, int lutcn )
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{
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LUT8u_( src, lut, dst, len, cn, lutcn );
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}
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static void LUT8u_64f( const uchar* src, const double* lut, double* dst, int len, int cn, int lutcn )
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{
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LUT8u_( src, lut, dst, len, cn, lutcn );
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}
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typedef void (*LUTFunc)( const uchar* src, const uchar* lut, uchar* dst, int len, int cn, int lutcn );
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static LUTFunc lutTab[] =
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{
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(LUTFunc)LUT8u_8u, (LUTFunc)LUT8u_8s, (LUTFunc)LUT8u_16u, (LUTFunc)LUT8u_16s,
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(LUTFunc)LUT8u_32s, (LUTFunc)LUT8u_32f, (LUTFunc)LUT8u_64f, 0
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};
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#ifdef HAVE_OPENCL
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static bool ocl_LUT(InputArray _src, InputArray _lut, OutputArray _dst)
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{
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int lcn = _lut.channels(), dcn = _src.channels(), ddepth = _lut.depth();
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UMat src = _src.getUMat(), lut = _lut.getUMat();
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_dst.create(src.size(), CV_MAKETYPE(ddepth, dcn));
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UMat dst = _dst.getUMat();
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int kercn = lcn == 1 ? std::min(4, ocl::predictOptimalVectorWidth(_src, _dst)) : dcn;
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ocl::Kernel k("LUT", ocl::core::lut_oclsrc,
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format("-D dcn=%d -D lcn=%d -D srcT=%s -D dstT=%s", kercn, lcn,
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ocl::typeToStr(src.depth()), ocl::memopTypeToStr(ddepth)));
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if (k.empty())
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return false;
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k.args(ocl::KernelArg::ReadOnlyNoSize(src), ocl::KernelArg::ReadOnlyNoSize(lut),
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ocl::KernelArg::WriteOnly(dst, dcn, kercn));
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size_t globalSize[2] = { (size_t)dst.cols * dcn / kercn, ((size_t)dst.rows + 3) / 4 };
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return k.run(2, globalSize, NULL, false);
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}
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#endif
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#ifdef HAVE_OPENVX
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static bool openvx_LUT(Mat src, Mat dst, Mat _lut)
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{
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if (src.type() != CV_8UC1 || dst.type() != src.type() || _lut.type() != src.type() || !_lut.isContinuous())
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return false;
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try
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{
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ivx::Context ctx = ovx::getOpenVXContext();
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ivx::Image
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ia = ivx::Image::createFromHandle(ctx, VX_DF_IMAGE_U8,
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ivx::Image::createAddressing(src.cols, src.rows, 1, (vx_int32)(src.step)), src.data),
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ib = ivx::Image::createFromHandle(ctx, VX_DF_IMAGE_U8,
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ivx::Image::createAddressing(dst.cols, dst.rows, 1, (vx_int32)(dst.step)), dst.data);
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ivx::LUT lut = ivx::LUT::create(ctx);
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lut.copyFrom(_lut);
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ivx::IVX_CHECK_STATUS(vxuTableLookup(ctx, ia, lut, ib));
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}
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catch (ivx::RuntimeError & e)
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{
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VX_DbgThrow(e.what());
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}
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catch (ivx::WrapperError & e)
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{
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VX_DbgThrow(e.what());
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}
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return true;
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}
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#endif
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#if defined(HAVE_IPP)
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#if !IPP_DISABLE_PERF_LUT // there are no performance benefits (PR #2653)
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namespace ipp {
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class IppLUTParallelBody_LUTC1 : public ParallelLoopBody
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{
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public:
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bool* ok;
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const Mat& src_;
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const Mat& lut_;
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Mat& dst_;
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int width;
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size_t elemSize1;
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IppLUTParallelBody_LUTC1(const Mat& src, const Mat& lut, Mat& dst, bool* _ok)
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: ok(_ok), src_(src), lut_(lut), dst_(dst)
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{
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width = dst.cols * dst.channels();
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elemSize1 = CV_ELEM_SIZE1(dst.depth());
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CV_DbgAssert(elemSize1 == 1 || elemSize1 == 4);
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*ok = true;
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}
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void operator()( const cv::Range& range ) const
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{
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if (!*ok)
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return;
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const int row0 = range.start;
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const int row1 = range.end;
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Mat src = src_.rowRange(row0, row1);
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Mat dst = dst_.rowRange(row0, row1);
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IppiSize sz = { width, dst.rows };
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if (elemSize1 == 1)
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{
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if (CV_INSTRUMENT_FUN_IPP(ippiLUTPalette_8u_C1R, (const Ipp8u*)src.data, (int)src.step[0], dst.data, (int)dst.step[0], sz, lut_.data, 8) >= 0)
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return;
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}
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else if (elemSize1 == 4)
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{
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if (CV_INSTRUMENT_FUN_IPP(ippiLUTPalette_8u32u_C1R, (const Ipp8u*)src.data, (int)src.step[0], (Ipp32u*)dst.data, (int)dst.step[0], sz, (Ipp32u*)lut_.data, 8) >= 0)
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return;
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}
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*ok = false;
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}
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private:
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IppLUTParallelBody_LUTC1(const IppLUTParallelBody_LUTC1&);
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IppLUTParallelBody_LUTC1& operator=(const IppLUTParallelBody_LUTC1&);
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};
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class IppLUTParallelBody_LUTCN : public ParallelLoopBody
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{
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public:
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bool *ok;
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const Mat& src_;
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const Mat& lut_;
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Mat& dst_;
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int lutcn;
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uchar* lutBuffer;
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uchar* lutTable[4];
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IppLUTParallelBody_LUTCN(const Mat& src, const Mat& lut, Mat& dst, bool* _ok)
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: ok(_ok), src_(src), lut_(lut), dst_(dst), lutBuffer(NULL)
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{
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lutcn = lut.channels();
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IppiSize sz256 = {256, 1};
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size_t elemSize1 = dst.elemSize1();
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CV_DbgAssert(elemSize1 == 1);
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lutBuffer = (uchar*)CV_IPP_MALLOC(256 * (int)elemSize1 * 4);
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lutTable[0] = lutBuffer + 0;
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lutTable[1] = lutBuffer + 1 * 256 * elemSize1;
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lutTable[2] = lutBuffer + 2 * 256 * elemSize1;
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lutTable[3] = lutBuffer + 3 * 256 * elemSize1;
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CV_DbgAssert(lutcn == 3 || lutcn == 4);
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if (lutcn == 3)
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{
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IppStatus status = CV_INSTRUMENT_FUN_IPP(ippiCopy_8u_C3P3R, lut.ptr(), (int)lut.step[0], lutTable, (int)lut.step[0], sz256);
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if (status < 0)
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return;
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}
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else if (lutcn == 4)
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{
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IppStatus status = CV_INSTRUMENT_FUN_IPP(ippiCopy_8u_C4P4R, lut.ptr(), (int)lut.step[0], lutTable, (int)lut.step[0], sz256);
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if (status < 0)
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return;
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}
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*ok = true;
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}
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~IppLUTParallelBody_LUTCN()
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{
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if (lutBuffer != NULL)
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ippFree(lutBuffer);
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lutBuffer = NULL;
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lutTable[0] = NULL;
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}
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void operator()( const cv::Range& range ) const
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{
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if (!*ok)
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return;
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const int row0 = range.start;
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const int row1 = range.end;
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Mat src = src_.rowRange(row0, row1);
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Mat dst = dst_.rowRange(row0, row1);
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if (lutcn == 3)
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{
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if (CV_INSTRUMENT_FUN_IPP(ippiLUTPalette_8u_C3R, src.ptr(), (int)src.step[0], dst.ptr(), (int)dst.step[0], ippiSize(dst.size()), lutTable, 8) >= 0)
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return;
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}
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else if (lutcn == 4)
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{
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if (CV_INSTRUMENT_FUN_IPP(ippiLUTPalette_8u_C4R, src.ptr(), (int)src.step[0], dst.ptr(), (int)dst.step[0], ippiSize(dst.size()), lutTable, 8) >= 0)
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return;
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}
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*ok = false;
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}
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private:
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IppLUTParallelBody_LUTCN(const IppLUTParallelBody_LUTCN&);
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IppLUTParallelBody_LUTCN& operator=(const IppLUTParallelBody_LUTCN&);
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};
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} // namespace ipp
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static bool ipp_lut(Mat &src, Mat &lut, Mat &dst)
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{
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CV_INSTRUMENT_REGION_IPP()
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int lutcn = lut.channels();
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if(src.dims > 2)
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return false;
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bool ok = false;
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Ptr<ParallelLoopBody> body;
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size_t elemSize1 = CV_ELEM_SIZE1(dst.depth());
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if (lutcn == 1)
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{
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ParallelLoopBody* p = new ipp::IppLUTParallelBody_LUTC1(src, lut, dst, &ok);
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body.reset(p);
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}
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else if ((lutcn == 3 || lutcn == 4) && elemSize1 == 1)
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{
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ParallelLoopBody* p = new ipp::IppLUTParallelBody_LUTCN(src, lut, dst, &ok);
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body.reset(p);
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}
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if (body != NULL && ok)
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{
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Range all(0, dst.rows);
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if (dst.total()>>18)
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parallel_for_(all, *body, (double)std::max((size_t)1, dst.total()>>16));
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else
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(*body)(all);
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if (ok)
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return true;
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}
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return false;
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}
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#endif
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#endif // IPP
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class LUTParallelBody : public ParallelLoopBody
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{
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public:
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bool* ok;
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const Mat& src_;
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const Mat& lut_;
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Mat& dst_;
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LUTFunc func;
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LUTParallelBody(const Mat& src, const Mat& lut, Mat& dst, bool* _ok)
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: ok(_ok), src_(src), lut_(lut), dst_(dst)
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{
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func = lutTab[lut.depth()];
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*ok = (func != NULL);
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}
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void operator()( const cv::Range& range ) const
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{
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CV_DbgAssert(*ok);
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const int row0 = range.start;
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const int row1 = range.end;
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Mat src = src_.rowRange(row0, row1);
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Mat dst = dst_.rowRange(row0, row1);
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int cn = src.channels();
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int lutcn = lut_.channels();
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const Mat* arrays[] = {&src, &dst, 0};
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uchar* ptrs[2];
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NAryMatIterator it(arrays, ptrs);
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int len = (int)it.size;
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for( size_t i = 0; i < it.nplanes; i++, ++it )
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func(ptrs[0], lut_.ptr(), ptrs[1], len, cn, lutcn);
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}
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private:
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LUTParallelBody(const LUTParallelBody&);
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LUTParallelBody& operator=(const LUTParallelBody&);
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};
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} // cv::
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void cv::LUT( InputArray _src, InputArray _lut, OutputArray _dst )
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{
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CV_INSTRUMENT_REGION()
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int cn = _src.channels(), depth = _src.depth();
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int lutcn = _lut.channels();
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CV_Assert( (lutcn == cn || lutcn == 1) &&
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_lut.total() == 256 && _lut.isContinuous() &&
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(depth == CV_8U || depth == CV_8S) );
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CV_OCL_RUN(_dst.isUMat() && _src.dims() <= 2,
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ocl_LUT(_src, _lut, _dst))
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Mat src = _src.getMat(), lut = _lut.getMat();
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_dst.create(src.dims, src.size, CV_MAKETYPE(_lut.depth(), cn));
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Mat dst = _dst.getMat();
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CV_OVX_RUN(!ovx::skipSmallImages<VX_KERNEL_TABLE_LOOKUP>(src.cols, src.rows),
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openvx_LUT(src, dst, lut))
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#if !IPP_DISABLE_PERF_LUT
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CV_IPP_RUN(_src.dims() <= 2, ipp_lut(src, lut, dst));
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#endif
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if (_src.dims() <= 2)
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{
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bool ok = false;
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Ptr<ParallelLoopBody> body;
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if (body == NULL || ok == false)
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{
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ok = false;
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ParallelLoopBody* p = new LUTParallelBody(src, lut, dst, &ok);
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body.reset(p);
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}
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if (body != NULL && ok)
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{
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Range all(0, dst.rows);
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if (dst.total()>>18)
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parallel_for_(all, *body, (double)std::max((size_t)1, dst.total()>>16));
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else
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(*body)(all);
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if (ok)
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return;
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}
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}
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LUTFunc func = lutTab[lut.depth()];
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CV_Assert( func != 0 );
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const Mat* arrays[] = {&src, &dst, 0};
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uchar* ptrs[2];
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NAryMatIterator it(arrays, ptrs);
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int len = (int)it.size;
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for( size_t i = 0; i < it.nplanes; i++, ++it )
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func(ptrs[0], lut.ptr(), ptrs[1], len, cn, lutcn);
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}
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