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Merge pull request #3155 from vbystricky:ocloptLaplacian

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This commit is contained in:
Vadim Pisarevsky 2014-08-26 16:01:44 +00:00
commit 89605fac04
2 changed files with 264 additions and 4 deletions
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96
modules/imgproc/src/deriv.cpp
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@ -643,21 +643,109 @@ void cv::Scharr( InputArray _src, OutputArray _dst, int ddepth, int dx, int dy,
namespace cv {
#define LAPLACIAN_LOCAL_MEM(tileX, tileY, ksize, elsize) (((tileX) + 2 * (int)((ksize) / 2)) * (3 * (tileY) + 2 * (int)((ksize) / 2)) * elsize)
static bool ocl_Laplacian5(InputArray _src, OutputArray _dst,
const Mat & kd, const Mat & ks, double scale, double delta,
int borderType, int depth, int ddepth)
{
const size_t tileSizeX = 16;
const size_t tileSizeYmin = 8;
const ocl::Device dev = ocl::Device::getDefault();
int stype = _src.type();
int sdepth = CV_MAT_DEPTH(stype), cn = CV_MAT_CN(stype), esz = CV_ELEM_SIZE(stype);
bool doubleSupport = dev.doubleFPConfig() > 0;
if (!doubleSupport && (sdepth == CV_64F || ddepth == CV_64F))
return false;
Mat kernelX = kd.reshape(1, 1);
if (kernelX.cols % 2 != 1)
return false;
Mat kernelY = ks.reshape(1, 1);
if (kernelY.cols % 2 != 1)
return false;
CV_Assert(kernelX.cols == kernelY.cols);
size_t wgs = dev.maxWorkGroupSize();
size_t lmsz = dev.localMemSize();
size_t src_step = _src.step(), src_offset = _src.offset();
if (((src_offset % src_step) % esz == 0) &&
(
(borderType == BORDER_CONSTANT || borderType == BORDER_REPLICATE) ||
((borderType == BORDER_REFLECT || borderType == BORDER_WRAP || borderType == BORDER_REFLECT_101) &&
(_src.cols() >= kernelX.cols && _src.rows() >= kernelY.cols))
) &&
(tileSizeX * tileSizeYmin <= wgs) &&
(LAPLACIAN_LOCAL_MEM(tileSizeX, tileSizeYmin, kernelX.cols, cn * 4) <= lmsz)
)
{
Size size = _src.size(), wholeSize;
Point origin;
int dtype = CV_MAKE_TYPE(ddepth, cn);
int wdepth = CV_32F;
size_t tileSizeY = wgs / tileSizeX;
while ((tileSizeX * tileSizeY > wgs) || (LAPLACIAN_LOCAL_MEM(tileSizeX, tileSizeY, kernelX.cols, cn * 4) > lmsz))
{
tileSizeY /= 2;
}
size_t lt2[2] = { tileSizeX, tileSizeY};
size_t gt2[2] = { lt2[0] * (1 + (size.width - 1) / lt2[0]), lt2[1] };
char cvt[2][40];
const char * const borderMap[] = { "BORDER_CONSTANT", "BORDER_REPLICATE", "BORDER_REFLECT", "BORDER_WRAP",
"BORDER_REFLECT_101" };
String opts = cv::format("-D BLK_X=%d -D BLK_Y=%d -D RADIUS=%d%s%s"
" -D convertToWT=%s -D convertToDT=%s"
" -D %s -D srcT1=%s -D dstT1=%s -D WT1=%s"
" -D srcT=%s -D dstT=%s -D WT=%s"
" -D CN=%d ",
(int)lt2[0], (int)lt2[1], kernelX.cols / 2,
ocl::kernelToStr(kernelX, wdepth, "KERNEL_MATRIX_X").c_str(),
ocl::kernelToStr(kernelY, wdepth, "KERNEL_MATRIX_Y").c_str(),
ocl::convertTypeStr(sdepth, wdepth, cn, cvt[0]),
ocl::convertTypeStr(wdepth, ddepth, cn, cvt[1]),
borderMap[borderType],
ocl::typeToStr(sdepth), ocl::typeToStr(ddepth), ocl::typeToStr(wdepth),
ocl::typeToStr(CV_MAKETYPE(sdepth, cn)),
ocl::typeToStr(CV_MAKETYPE(ddepth, cn)),
ocl::typeToStr(CV_MAKETYPE(wdepth, cn)),
cn);
ocl::Kernel k("laplacian", ocl::imgproc::laplacian5_oclsrc, opts);
if (k.empty())
return false;
UMat src = _src.getUMat();
_dst.create(size, dtype);
UMat dst = _dst.getUMat();
int src_offset_x = static_cast<int>((src_offset % src_step) / esz);
int src_offset_y = static_cast<int>(src_offset / src_step);
src.locateROI(wholeSize, origin);
k.args(ocl::KernelArg::PtrReadOnly(src), (int)src_step, src_offset_x, src_offset_y,
wholeSize.height, wholeSize.width, ocl::KernelArg::WriteOnly(dst),
static_cast<float>(scale), static_cast<float>(delta));
return k.run(2, gt2, lt2, false);
}
int iscale = cvRound(scale), idelta = cvRound(delta);
bool doubleSupport = ocl::Device::getDefault().doubleFPConfig() > 0,
floatCoeff = std::fabs(delta - idelta) > DBL_EPSILON || std::fabs(scale - iscale) > DBL_EPSILON;
int cn = _src.channels(), wdepth = std::max(depth, floatCoeff ? CV_32F : CV_32S), kercn = 1;
bool floatCoeff = std::fabs(delta - idelta) > DBL_EPSILON || std::fabs(scale - iscale) > DBL_EPSILON;
int wdepth = std::max(depth, floatCoeff ? CV_32F : CV_32S), kercn = 1;
if (!doubleSupport && wdepth == CV_64F)
return false;
char cvt[2][40];
ocl::Kernel k("sumConvert", ocl::imgproc::laplacian5_oclsrc,
format("-D srcT=%s -D WT=%s -D dstT=%s -D coeffT=%s -D wdepth=%d "
format("-D ONLY_SUM_CONVERT "
"-D srcT=%s -D WT=%s -D dstT=%s -D coeffT=%s -D wdepth=%d "
"-D convertToWT=%s -D convertToDT=%s%s",
ocl::typeToStr(CV_MAKE_TYPE(depth, kercn)),
ocl::typeToStr(CV_MAKE_TYPE(wdepth, kercn)),

172
modules/imgproc/src/opencl/laplacian5.cl
View File

@ -5,8 +5,11 @@
// Copyright (C) 2014, Itseez, Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
#define noconvert
#ifdef ONLY_SUM_CONVERT
__kernel void sumConvert(__global const uchar * src1ptr, int src1_step, int src1_offset,
__global const uchar * src2ptr, int src2_step, int src2_offset,
__global uchar * dstptr, int dst_step, int dst_offset, int dst_rows, int dst_cols,
@ -32,3 +35,172 @@ __kernel void sumConvert(__global const uchar * src1ptr, int src1_step, int src1
#endif
}
}
#else
///////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////Macro for border type////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////
#ifdef BORDER_CONSTANT
// CCCCCC|abcdefgh|CCCCCCC
#define EXTRAPOLATE(x, maxV)
#elif defined BORDER_REPLICATE
// aaaaaa|abcdefgh|hhhhhhh
#define EXTRAPOLATE(x, maxV) \
{ \
(x) = max(min((x), (maxV) - 1), 0); \
}
#elif defined BORDER_WRAP
// cdefgh|abcdefgh|abcdefg
#define EXTRAPOLATE(x, maxV) \
{ \
(x) = ( (x) + (maxV) ) % (maxV); \
}
#elif defined BORDER_REFLECT
// fedcba|abcdefgh|hgfedcb
#define EXTRAPOLATE(x, maxV) \
{ \
(x) = min(((maxV)-1)*2-(x)+1, max((x),-(x)-1) ); \
}
#elif defined BORDER_REFLECT_101
// gfedcb|abcdefgh|gfedcba
#define EXTRAPOLATE(x, maxV) \
{ \
(x) = min(((maxV)-1)*2-(x), max((x),-(x)) ); \
}
#else
#error No extrapolation method
#endif
#if CN != 3
#define loadpix(addr) *(__global const srcT *)(addr)
#define storepix(val, addr) *(__global dstT *)(addr) = val
#define SRCSIZE (int)sizeof(srcT)
#define DSTSIZE (int)sizeof(dstT)
#else
#define loadpix(addr) vload3(0, (__global const srcT1 *)(addr))
#define storepix(val, addr) vstore3(val, 0, (__global dstT1 *)(addr))
#define SRCSIZE (int)sizeof(srcT1)*3
#define DSTSIZE (int)sizeof(dstT1)*3
#endif
#define SRC(_x,_y) convertToWT(loadpix(Src + mad24(_y, src_step, SRCSIZE * _x)))
#ifdef BORDER_CONSTANT
// CCCCCC|abcdefgh|CCCCCCC
#define ELEM(_x,_y,r_edge,t_edge,const_v) (_x)<0 | (_x) >= (r_edge) | (_y)<0 | (_y) >= (t_edge) ? (const_v) : SRC((_x),(_y))
#else
#define ELEM(_x,_y,r_edge,t_edge,const_v) SRC((_x),(_y))
#endif
// horizontal and vertical filter kernels
// should be defined on host during compile time to avoid overhead
#define DIG(a) a,
__constant WT1 mat_kernelX[] = { KERNEL_MATRIX_X };
__constant WT1 mat_kernelY[] = { KERNEL_MATRIX_Y };
__kernel void laplacian(__global uchar* Src, int src_step, int srcOffsetX, int srcOffsetY, int height, int width,
__global uchar* Dst, int dst_step, int dst_offset, int dst_rows, int dst_cols,
WT1 scale, WT1 delta)
{
__local WT lsmem[BLK_Y + 2 * RADIUS][BLK_X + 2 * RADIUS];
__local WT lsmemDy1[BLK_Y][BLK_X + 2 * RADIUS];
__local WT lsmemDy2[BLK_Y][BLK_X + 2 * RADIUS];
int lix = get_local_id(0);
int liy = get_local_id(1);
int x = get_global_id(0);
int srcX = x + srcOffsetX - RADIUS;
int clocY = liy;
do
{
int yb = clocY + srcOffsetY - RADIUS;
EXTRAPOLATE(yb, (height));
int clocX = lix;
int cSrcX = srcX;
do
{
int xb = cSrcX;
EXTRAPOLATE(xb,(width));
lsmem[clocY][clocX] = ELEM(xb, yb, (width), (height), 0 );
clocX += BLK_X;
cSrcX += BLK_X;
}
while(clocX < BLK_X+(RADIUS*2));
clocY += BLK_Y;
}
while (clocY < BLK_Y+(RADIUS*2));
barrier(CLK_LOCAL_MEM_FENCE);
WT scale_v = (WT)scale;
WT delta_v = (WT)delta;
for (int y = 0; y < dst_rows; y+=BLK_Y)
{
int i, clocX = lix;
WT sum1 = (WT) 0;
WT sum2 = (WT) 0;
do
{
sum1 = (WT) 0;
sum2 = (WT) 0;
for (i=0; i<=2*RADIUS; i++)
{
sum1 = mad(lsmem[liy + i][clocX], mat_kernelY[i], sum1);
sum2 = mad(lsmem[liy + i][clocX], mat_kernelX[i], sum2);
}
lsmemDy1[liy][clocX] = sum1;
lsmemDy2[liy][clocX] = sum2;
clocX += BLK_X;
}
while(clocX < BLK_X+(RADIUS*2));
barrier(CLK_LOCAL_MEM_FENCE);
if ((x < dst_cols) && (y + liy < dst_rows))
{
sum1 = (WT) 0;
sum2 = (WT) 0;
for (i=0; i<=2*RADIUS; i++)
{
sum1 = mad(lsmemDy1[liy][lix+i], mat_kernelX[i], sum1);
sum2 = mad(lsmemDy2[liy][lix+i], mat_kernelY[i], sum2);
}
WT sum = mad(scale_v, (sum1 + sum2), delta_v);
storepix(convertToDT(sum), Dst + mad24(y + liy, dst_step, mad24(x, DSTSIZE, dst_offset)));
}
for (int i = liy * BLK_X + lix; i < (RADIUS*2) * (BLK_X+(RADIUS*2)); i += BLK_X * BLK_Y)
{
int clocX = i % (BLK_X+(RADIUS*2));
int clocY = i / (BLK_X+(RADIUS*2));
lsmem[clocY][clocX] = lsmem[clocY + BLK_Y][clocX];
}
barrier(CLK_LOCAL_MEM_FENCE);
int yb = y + liy + BLK_Y + srcOffsetY + RADIUS;
EXTRAPOLATE(yb, (height));
clocX = lix;
int cSrcX = x + srcOffsetX - RADIUS;
do
{
int xb = cSrcX;
EXTRAPOLATE(xb,(width));
lsmem[liy + 2*RADIUS][clocX] = ELEM(xb, yb, (width), (height), 0 );
clocX += BLK_X;
cSrcX += BLK_X;
}
while(clocX < BLK_X+(RADIUS*2));
barrier(CLK_LOCAL_MEM_FENCE);
}
}
#endif