Filter2D HAL interface

modules/imgproc/include/opencv2/imgproc/hal/hal.hpp

+#ifndef CV_IMGPROC_HAL_HPP
+#define CV_IMGPROC_HAL_HPP
+
+#include "opencv2/core/cvdef.h"
+#include "opencv2/core/hal/interface.h"
+
+namespace cv { namespace hal {
+
+//! @addtogroup core_hal_functions
+//! @{
+
+struct FilterContext
+{
+    void * impl;
+    FilterContext() : impl(0) {}
+};
+
+
+CV_EXPORTS
+void init_filter2d(FilterContext &c,
+                   uchar * kernel_data, size_t kernel_step, int kernel_type,
+                   int kernel_width, int kernel_height,
+                   int max_width, int max_height,
+                   int stype, int dtype,
+                   int borderType, double delta, int anchor_x, int anchor_y, bool isSubmatrix, bool isInplace);
+
+CV_EXPORTS
+void filter2d(FilterContext & c, uchar * src_data, size_t src_step, uchar * dst_data, size_t dst_step,
+              int width, int height, int full_width, int full_height, int offset_x, int offset_y);
+
+CV_EXPORTS
+void free_filter2d(FilterContext & c);
+
+
+CV_EXPORTS
+void init_sepFilter2d(FilterContext & c, int stype, int dtype, int ktype,
+                      uchar * kernelx_data, size_t kernelx_step, int kernelx_width, int kernelx_height,
+                      uchar * kernely_data, size_t kernely_step, int kernely_width, int kernely_height,
+                      int anchor_x, int anchor_y, double delta, int borderType);
+
+CV_EXPORTS
+void sepFilter2d(FilterContext & c, uchar* src_data, size_t src_step, uchar* dst_data, size_t dst_step,
+                 int width, int height, int full_width, int full_height,
+                 int offset_x, int offset_y);
+
+CV_EXPORTS
+void free_sepFilter2d(FilterContext & c);
+
+//! @}
+
+}}
+
+#endif // CV_IMGPROC_HAL_HPP

modules/imgproc/src/deriv.cpp

@@ -856,8 +856,12 @@ void cv::Laplacian( InputArray _src, OutputArray _dst, int ddepth, int ksize,
             wtype, ks, kd, Point(-1,-1), 0, borderType, borderType, Scalar() );
 
         Mat src = _src.getMat(), dst = _dst.getMat();
-        int y = fx->start(src), dsty = 0, dy = 0;
-        fy->start(src);
+        Point ofs;
+        Size wsz(src.cols, src.rows);
+        src.locateROI( wsz, ofs );
+
+        int y = fx->start(src, wsz, ofs), dsty = 0, dy = 0;
+        fy->start(src, wsz, ofs);
         const uchar* sptr = src.ptr() + src.step[0] * y;
 
         int dy0 = std::min(std::max((int)(STRIPE_SIZE/(CV_ELEM_SIZE(stype)*src.cols)), 1), src.rows);

modules/imgproc/src/filterengine.hpp

@@ -228,19 +228,17 @@ public:
               int _rowBorderType = BORDER_REPLICATE,
               int _columnBorderType = -1,
               const Scalar& _borderValue = Scalar());
+
     //! starts filtering of the specified ROI of an image of size wholeSize.
-    virtual int start(Size wholeSize, Rect roi, int maxBufRows = -1);
+    virtual int start(const cv::Size &wholeSize, const cv::Size &sz, const cv::Point &ofs);
     //! starts filtering of the specified ROI of the specified image.
-    virtual int start(const Mat& src, const Rect& srcRoi = Rect(0,0,-1,-1),
-                      bool isolated = false, int maxBufRows = -1);
+    virtual int start(const Mat& src, const cv::Size &wsz, const cv::Point &ofs);
     //! processes the next srcCount rows of the image.
     virtual int proceed(const uchar* src, int srcStep, int srcCount,
                         uchar* dst, int dstStep);
     //! applies filter to the specified ROI of the image. if srcRoi=(0,0,-1,-1), the whole image is filtered.
-    virtual void apply( const Mat& src, Mat& dst,
-                        const Rect& srcRoi = Rect(0,0,-1,-1),
-                        Point dstOfs = Point(0,0),
-                        bool isolated = false);
+    virtual void apply(const Mat& src, Mat& dst, const cv::Size &wsz, const cv::Point &ofs);
+
     //! returns true if the filter is separable
     bool isSeparable() const { return !filter2D; }
     //! returns the number

modules/imgproc/src/hal_replacement.hpp

+#ifndef OPENCV_IMGPROC_HAL_REPLACEMENT_HPP
+#define OPENCV_IMGPROC_HAL_REPLACEMENT_HPP
+
+#include "opencv2/core/hal/interface.h"
+
+inline int hal_ni_filterInit(void **, uchar *, size_t, int, int, int, int, int, int, int, int, double, int, int, bool, bool) { return CV_HAL_ERROR_NOT_IMPLEMENTED; }
+inline int hal_ni_filter(void *, uchar *, size_t, uchar *, size_t, int, int, int, int, int, int) { return CV_HAL_ERROR_NOT_IMPLEMENTED; }
+inline int hal_ni_filterFree(void *) { return CV_HAL_ERROR_NOT_IMPLEMENTED; }
+
+#define cv_hal_filterInit hal_ni_filterInit
+#define cv_hal_filter hal_ni_filter
+#define cv_hal_filterFree hal_ni_filterFree
+
+inline int hal_ni_sepFilterInit(void **, int, int, int, uchar *, size_t, int, int, uchar *, size_t, int, int, int, int, double, int) { return CV_HAL_ERROR_NOT_IMPLEMENTED; }
+inline int hal_ni_sepFilter(void *, uchar *, size_t, uchar*, size_t, int, int, int, int, int, int) { return CV_HAL_ERROR_NOT_IMPLEMENTED; }
+inline int hal_ni_sepFilterFree(void *) { return CV_HAL_ERROR_NOT_IMPLEMENTED; }
+
+#define cv_hal_sepFilterInit hal_ni_sepFilterInit
+#define cv_hal_sepFilter hal_ni_sepFilter
+#define cv_hal_sepFilterFree hal_ni_sepFilterFree
+
+#include "custom_hal.hpp"
+
+#endif // OPENCV_IMGPROC_HAL_REPLACEMENT_HPP

modules/imgproc/src/morph.cpp

@@ -1117,9 +1117,22 @@ public:
         Ptr<FilterEngine> f = createMorphologyFilter(op, src.type(), kernel, anchor,
                                                      rowBorderType, columnBorderType, borderValue );
 
-        f->apply( srcStripe, dstStripe );
-        for( int i = 1; i < iterations; i++ )
-            f->apply( dstStripe, dstStripe );
+        {
+            Point ofs;
+            Size wsz(srcStripe.cols, srcStripe.rows);
+            srcStripe.locateROI( wsz, ofs );
+
+            f->apply( srcStripe, dstStripe, wsz, ofs );
+        }
+
+        {
+            Point ofs;
+            Size wsz(dstStripe.cols, dstStripe.rows);
+            dstStripe.locateROI( wsz, ofs );
+
+            for( int i = 1; i < iterations; i++ )
+                f->apply( dstStripe, dstStripe, wsz, ofs );
+        }
     }
 
 private:

modules/imgproc/src/precomp.hpp

@@ -50,6 +50,7 @@
 #include "opencv2/core/private.hpp"
 #include "opencv2/core/ocl.hpp"
 #include "opencv2/core/hal/hal.hpp"
+#include "opencv2/imgproc/hal/hal.hpp"
 
 #include <math.h>
 #include <assert.h>

modules/imgproc/src/smooth.cpp

@@ -1439,7 +1439,11 @@ void cv::boxFilter( InputArray _src, OutputArray _dst, int ddepth,
 
     Ptr<FilterEngine> f = createBoxFilter( src.type(), dst.type(),
                         ksize, anchor, normalize, borderType );
-    f->apply( src, dst );
+    Point ofs;
+    Size wsz(src.cols, src.rows);
+    src.locateROI( wsz, ofs );
+
+    f->apply( src, dst, wsz, ofs );
 }
 
 
@@ -1561,7 +1565,11 @@ void cv::sqrBoxFilter( InputArray _src, OutputArray _dst, int ddepth,
 
     Ptr<FilterEngine> f = makePtr<FilterEngine>(Ptr<BaseFilter>(), rowFilter, columnFilter,
                                                 srcType, dstType, sumType, borderType );
-    f->apply( src, dst );
+    Point ofs;
+    Size wsz(src.cols, src.rows);
+    src.locateROI( wsz, ofs );
+
+    f->apply( src, dst, wsz, ofs );
 }