blob: c475b4c7e9a67b842e50fa837a0fd15c9d8649a6 [file] [log] [blame]
// Copyright (c) 2006, 2008 Edward Rosten
// 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 the University of Cambridge 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 AND CONTRIBUTORS
// "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.
// clang-format off
#include <stdlib.h>
#include "fast.h"
xy* aom_fast9_detect_nonmax(const byte* im, int xsize, int ysize, int stride, int b,
int** ret_scores, int* ret_num_corners)
{
xy* corners;
int num_corners;
int* scores;
xy* nonmax;
corners = aom_fast9_detect(im, xsize, ysize, stride, b, &num_corners);
if(!corners)
{
// Memory allocation failure
*ret_num_corners = -1;
return NULL;
}
// num_corners may be zero.
scores = aom_fast9_score(im, stride, corners, num_corners, b);
if(!scores && num_corners > 0)
{
// Memory allocation failure
free(corners);
*ret_num_corners = -1;
return NULL;
}
nonmax = aom_nonmax_suppression(corners, scores, num_corners, ret_scores, ret_num_corners);
free(corners);
free(scores);
return nonmax;
}
// clang-format on