Merge pull request #15236 from dbudniko:dbudniko/g_api_copy_kernels

modules/gapi/src/api/kernels_core.cpp

@@ -323,6 +323,11 @@ GMat crop(const GMat& src, const Rect& rect)
     return core::GCrop::on(src, rect);
 }
 
+GMat copy(const GMat& src)
+{
+    return core::GCopy::on(src);
+}
+
 GMat concatHor(const GMat& src1, const GMat& src2)
 {
     return core::GConcatHor::on(src1, src2);

modules/gapi/src/backends/cpu/gcpucore.cpp

@@ -501,6 +501,14 @@ GAPI_OCV_KERNEL(GCPUCrop, cv::gapi::core::GCrop)
     }
 };
 
+GAPI_OCV_KERNEL(GCPUCopy, cv::gapi::core::GCopy)
+{
+    static void run(const cv::Mat& in, cv::Mat& out)
+    {
+        cv::Mat(in).copyTo(out);
+    }
+};
+
 GAPI_OCV_KERNEL(GCPUConcatHor, cv::gapi::core::GConcatHor)
 {
     static void run(const cv::Mat& in1, const cv::Mat& in2, cv::Mat& out)
@@ -611,6 +619,7 @@ cv::gapi::GKernelPackage cv::gapi::core::cpu::kernels()
          , GCPURemap
          , GCPUFlip
          , GCPUCrop
+         , GCPUCopy
          , GCPUConcatHor
          , GCPUConcatVert
          , GCPULUT

modules/gapi/src/backends/fluid/gfluidcore.cpp

@@ -2118,6 +2118,40 @@ GAPI_FLUID_KERNEL(GFluidSqrt, cv::gapi::core::GSqrt, false)
     }
 };
 
+GAPI_FLUID_KERNEL(GFluidCopy, cv::gapi::core::GCopy, false)
+{
+    static const int Window = 1;
+
+    static void run(const View &src, Buffer &dst)
+    {
+        const auto *in  = src.InLine<uchar>(0);
+              auto *out = dst.OutLine<uchar>();
+
+        GAPI_DbgAssert(dst.length() == src.length());
+        GAPI_DbgAssert(dst.meta().chan == src.meta().chan);
+        GAPI_DbgAssert(dst.meta().depth == src.meta().depth);
+
+        int width = src.length();
+        int elem_size = CV_ELEM_SIZE(CV_MAKETYPE(src.meta().depth, src.meta().chan));
+
+        int w = 0; // cycle counter
+
+    #if CV_SIMD128
+        for (; w <= width*elem_size-16; w+=16)
+        {
+            v_uint8x16 a;
+            a = v_load(&in[w]);
+            v_store(&out[w], a);
+        }
+    #endif
+
+        for (; w < width*elem_size; w++)
+        {
+            out[w] = in[w];
+        }
+    }
+};
+
 } // namespace fliud
 } // namespace gapi
 } // namespace cv
@@ -2173,6 +2207,7 @@ cv::gapi::GKernelPackage cv::gapi::core::fluid::kernels()
             ,GFluidInRange
             ,GFluidResize
             ,GFluidSqrt
+            ,GFluidCopy
         #if 0
             ,GFluidMean        -- not fluid
             ,GFluidSum         -- not fluid

modules/gapi/src/backends/ocl/goclcore.cpp

@@ -482,6 +482,14 @@ GAPI_OCL_KERNEL(GOCLCrop, cv::gapi::core::GCrop)
     }
 };
 
+GAPI_OCL_KERNEL(GOCLCopy, cv::gapi::core::GCopy)
+{
+    static void run(const cv::UMat& in, cv::UMat& out)
+    {
+        cv::UMat(in).copyTo(out);
+    }
+};
+
 GAPI_OCL_KERNEL(GOCLConcatHor, cv::gapi::core::GConcatHor)
 {
     static void run(const cv::UMat& in1, const cv::UMat& in2, cv::UMat& out)
@@ -573,6 +581,7 @@ cv::gapi::GKernelPackage cv::gapi::core::ocl::kernels()
          , GOCLRemap
          , GOCLFlip
          , GOCLCrop
+         , GOCLCopy
          , GOCLConcatHor
          , GOCLConcatVert
          , GOCLLUT