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cvtColor - optimized index calculations; usage of build-in functions

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This commit is contained in:
Ilya Lavrenov
2014-06-04 15:24:29 +04:00
parent 6952b90ed0
commit 007593cab7
3 changed files with 516 additions and 384 deletions
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16
modules/imgproc/src/color.cpp
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@@ -2730,8 +2730,6 @@ struct mRGBA2RGBA
#ifdef HAVE_OPENCL
#define DIVUP(total, grain) (((total) + (grain) - 1) / (grain))
static bool ocl_cvtColor( InputArray _src, OutputArray _dst, int code, int dcn )
{
bool ok = false;
@@ -2739,23 +2737,17 @@ static bool ocl_cvtColor( InputArray _src, OutputArray _dst, int code, int dcn )
Size sz = src.size(), dstSz = sz;
int scn = src.channels(), depth = src.depth(), bidx;
int dims = 2, stripeSize = 1;
size_t globalsize[] = { src.cols, src.rows };
ocl::Kernel k;
if (depth != CV_8U && depth != CV_16U && depth != CV_32F)
return false;
cv::String opts = format("-D depth=%d -D scn=%d ", depth, scn);
ocl::Device dev = ocl::Device::getDefault();
int pxPerWIy = 1;
if (dev.isIntel() && (dev.type() & ocl::Device::TYPE_GPU) &&
!(code == CV_BGR2Luv || code == CV_RGB2Luv || code == CV_LBGR2Luv || code == CV_LRGB2Luv ||
code == CV_Luv2BGR || code == CV_Luv2RGB || code == CV_Luv2LBGR || code == CV_Luv2LRGB))
pxPerWIy = 4;
int pxPerWIy = dev.isIntel() && (dev.type() & ocl::Device::TYPE_GPU) ? 4 : 1;
globalsize[1] = DIVUP(globalsize[1], pxPerWIy);
opts += format("-D PIX_PER_WI_Y=%d ", pxPerWIy);
size_t globalsize[] = { src.cols, (src.rows + pxPerWIy - 1) / pxPerWIy };
cv::String opts = format("-D depth=%d -D scn=%d -D PIX_PER_WI_Y=%d ",
depth, scn, pxPerWIy);
switch (code)
{

878
modules/imgproc/src/opencl/cvtcolor.cl
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