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/* Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of NVIDIA CORPORATION nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __SOBELFILTER_KERNELS_H_
#define __SOBELFILTER_KERNELS_H_
typedef unsigned char Pixel;
// global determines which filter to invoke
enum SobelDisplayMode {
SOBELDISPLAY_IMAGE = 0,
SOBELDISPLAY_SOBELTEX,
SOBELDISPLAY_SOBELSHARED
};
// Enums to set up the function table
// note: if you change these be sure to recompile those files
// that include this header or ensure the .h is in the
// dependencies for the related object files
enum POINT_ENUM { SOBEL_FILTER = 0, BOX_FILTER, LAST_POINT_FILTER };
enum BLOCK_ENUM { THRESHOLD_FILTER = 0, NULL_FILTER, LAST_BLOCK_FILTER };
extern enum SobelDisplayMode g_SobelDisplayMode;
extern "C" void sobelFilter(Pixel *odata, int iw, int ih,
enum SobelDisplayMode mode, float fScale,
int blockOperation, int pointOperation);
extern "C" void setupTexture(int iw, int ih, Pixel *data, int Bpp);
extern "C" void deleteTexture(void);
extern "C" void initFilter(void);
void setupFunctionTables();
#endif
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