static bool ocl_LUT(InputArray _src, InputArray _lut, OutputArray _dst)
{
int lcn = _lut.channels(), dcn = _src.channels(), ddepth = _lut.depth();
+ int sdepth = _src.depth();
UMat src = _src.getUMat(), lut = _lut.getUMat();
- _dst.create(src.size(), CV_MAKETYPE(ddepth, dcn));
+ int dtype = CV_MAKETYPE(ddepth, dcn);
+ _dst.create(src.size(), dtype);
UMat dst = _dst.getUMat();
- ocl::Kernel k("LUT", ocl::core::lut_oclsrc,
- format("-D dcn=%d -D lcn=%d -D srcT=%s -D dstT=%s", dcn, lcn,
- ocl::typeToStr(src.depth()), ocl::memopTypeToStr(ddepth)));
- if (k.empty())
+ size_t globalSize[2] = { dst.cols, dst.rows / 2};
+
+ cv::String build_opt = format("-D dcn=%d -D lcn=%d -D srcT=%s -D dstT=%s", dcn, lcn,
+ ocl::typeToStr(sdepth), ocl::memopTypeToStr(ddepth)
+ );
+
+ ocl::Kernel kernel;
+ if ((4 == lcn) && (CV_8U == sdepth))
+ kernel.create("LUTC4", ocl::core::lut_oclsrc, build_opt);
+ else if ((3 == lcn) && (CV_8U == sdepth))
+ kernel.create("LUTC3", ocl::core::lut_oclsrc, build_opt);
+ else
+ kernel.create("LUT", ocl::core::lut_oclsrc, build_opt);
+ if (kernel.empty())
return false;
- k.args(ocl::KernelArg::ReadOnlyNoSize(src), ocl::KernelArg::ReadOnlyNoSize(lut),
+ kernel.args(ocl::KernelArg::ReadOnlyNoSize(src), ocl::KernelArg::ReadOnlyNoSize(lut),
ocl::KernelArg::WriteOnly(dst));
- size_t globalSize[2] = { dst.cols, dst.rows };
- return k.run(2, globalSize, NULL, false);
+ return kernel.run(2, globalSize, NULL, true);
}
#endif
//
//
-__kernel void LUT(__global const uchar * srcptr, int src_step, int src_offset,
+__kernel void LUTC4(__global const uchar * srcptr, int src_step, int src_offset,
__global const uchar * lutptr, int lut_step, int lut_offset,
__global uchar * dstptr, int dst_step, int dst_offset, int rows, int cols)
{
int x = get_global_id(0);
- int y = get_global_id(1);
+ int y = 2 * get_global_id(1);
+
+ __global const dstT * lut = (__global const dstT *)(lutptr + lut_offset);
+
+ __local dstT lut_l[256 * lcn];
+ int init = mad24(get_local_id(1), get_local_size(0), get_local_id(0));
+ int step = get_local_size(0) * get_local_size(1);
+
+ for (int i = init; i < 256 * lcn; i += step)
+ {
+ lut_l[i + 0] = lut[i + 0];
+ }
+ barrier(CLK_LOCAL_MEM_FENCE);
+
+ if (x < cols && y < rows)
+ {
+ int src_index = mad24(y, src_step, mad24(x, (int)sizeof(srcT) * dcn, src_offset));
+ int dst_index = mad24(y, dst_step, mad24(x, (int)sizeof(dstT) * dcn, dst_offset));
+
+ __global const uchar4 * src = (__global const uchar4 *)(srcptr + src_index);
+ int4 idx = convert_int4(src[0]) * lcn + (int4)(0, 1, 2, 3);
+ __global dstT * dst = (__global dstT *)(dstptr + dst_index);
+
+ dst[0] = lut_l[idx.x];
+ dst[1] = lut_l[idx.y];
+ dst[2] = lut_l[idx.z];
+ dst[3] = lut_l[idx.w];
+
+ if (y < rows - 1)
+ {
+ src = (__global const uchar4 *)(srcptr + src_index + src_step);
+ idx = convert_int4(src[0]) * lcn + (int4)(0, 1, 2, 3);
+ dst = (__global dstT *)(dstptr + dst_index + dst_step);
+
+ dst[0] = lut_l[idx.x];
+ dst[1] = lut_l[idx.y];
+ dst[2] = lut_l[idx.z];
+ dst[3] = lut_l[idx.w];
+ }
+ }
+}
+
+__kernel void LUTC3(__global const uchar * srcptr, int src_step, int src_offset,
+ __global const uchar * lutptr, int lut_step, int lut_offset,
+ __global uchar * dstptr, int dst_step, int dst_offset, int rows, int cols)
+{
+ int x = get_global_id(0);
+ int y = 2 * get_global_id(1);
+
+ __global const dstT * lut = (__global const dstT *)(lutptr + lut_offset);
+
+ __local dstT lut_l[256 * lcn];
+ int init = mad24(get_local_id(1), get_local_size(0), get_local_id(0));
+ int step = get_local_size(0) * get_local_size(1);
+
+ for (int i = init; i < 256 * lcn; i += step)
+ {
+ lut_l[i + 0] = lut[i + 0];
+ }
+ barrier(CLK_LOCAL_MEM_FENCE);
if (x < cols && y < rows)
{
int src_index = mad24(y, src_step, mad24(x, (int)sizeof(srcT) * dcn, src_offset));
int dst_index = mad24(y, dst_step, mad24(x, (int)sizeof(dstT) * dcn, dst_offset));
+ uchar3 src_pixel = vload3(0, (__global const uchar *)(srcptr + src_index));
+ int3 idx = convert_int3(src_pixel) * lcn + (int3)(0, 1, 2);
+ __global dstT * dst = (__global dstT *)(dstptr + dst_index);
+
+ dst[0] = lut_l[idx.x];
+ dst[1] = lut_l[idx.y];
+ dst[2] = lut_l[idx.z];
+ if (y < rows - 1)
+ {
+ uchar3 src_pixel = vload3(0, (__global const uchar *)(srcptr + src_index + src_step));
+ idx = convert_int3(src_pixel) * lcn + (int3)(0, 1, 2);
+ dst = (__global dstT *)(dstptr + dst_index + dst_step);
+
+ dst[0] = lut_l[idx.x];
+ dst[1] = lut_l[idx.y];
+ dst[2] = lut_l[idx.z];
+ }
+ }
+}
+
+__kernel void LUT(__global const uchar * srcptr, int src_step, int src_offset,
+ __global const uchar * lutptr, int lut_step, int lut_offset,
+ __global uchar * dstptr, int dst_step, int dst_offset, int rows, int cols)
+{
+ __global const dstT * lut = (__global const dstT *)(lutptr + lut_offset);
+
+ __local dstT lut_l[256 * lcn];
+ int init = mad24(get_local_id(1), get_local_size(0), get_local_id(0));
+ int step = get_local_size(0) * get_local_size(1);
+
+ for (int i = init; i < 256 * lcn; i += step)
+ {
+ lut_l[i + 0] = lut[i + 0];
+ }
+ barrier(CLK_LOCAL_MEM_FENCE);
+
+ int x = get_global_id(0);
+ int y = 2 * get_global_id(1);
+
+ if (x < cols && y < rows)
+ {
+ int src_index = mad24(y, src_step, mad24(x, (int)sizeof(srcT) * dcn, src_offset));
+
__global const srcT * src = (__global const srcT *)(srcptr + src_index);
__global const dstT * lut = (__global const dstT *)(lutptr + lut_offset);
+
+ int dst_index = mad24(y, dst_step, mad24(x, (int)sizeof(dstT) * dcn, dst_offset));
__global dstT * dst = (__global dstT *)(dstptr + dst_index);
#if lcn == 1
#pragma unroll
for (int cn = 0; cn < dcn; ++cn)
- dst[cn] = lut[src[cn]];
-#else
+ dst[cn] = lut_l[src[cn]];
+#else //lcn == scn == dcn
#pragma unroll
for (int cn = 0; cn < dcn; ++cn)
- dst[cn] = lut[mad24(src[cn], dcn, cn)];
+ dst[cn] = lut_l[mad24(src[cn], lcn, cn)];
+#endif
+ if (y < rows - 1)
+ {
+ src = (__global const srcT *)(srcptr + src_index + src_step);
+ dst = (__global dstT *)(dstptr + dst_index + dst_step);
+
+#if lcn == 1
+ #pragma unroll
+ for (int cn = 0; cn < dcn; ++cn)
+ dst[cn] = lut_l[src[cn]];
+#else //lcn == scn == dcn
+ #pragma unroll
+ for (int cn = 0; cn < dcn; ++cn)
+ dst[cn] = lut_l[mad24(src[cn], lcn, cn)];
#endif
+ }
}
}