ccv_basic.c

Bug Summary

File:	ccv_basic.c
Warning:	line 472, column 2 The right operand of '*' is a garbage value
Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-unknown-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name ccv_basic.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -pic-is-pie -mframe-pointer=none -menable-no-infs -menable-no-nans -fapprox-func -funsafe-math-optimizations -fno-signed-zeros -mreassociate -freciprocal-math -fdenormal-fp-math=preserve-sign,preserve-sign -ffp-contract=fast -fno-rounding-math -ffast-math -ffinite-math-only -complex-range=limited -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -target-feature +sse2 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/home/liu/actions-runner/_work/ccv/ccv/lib -fcoverage-compilation-dir=/home/liu/actions-runner/_work/ccv/ccv/lib -resource-dir /usr/local/lib/clang/18 -I . -I /usr/local/cuda/include -D HAVE_CBLAS -D HAVE_LIBPNG -D HAVE_LIBJPEG -D HAVE_FFTW3 -D HAVE_PTHREAD -D HAVE_LIBLINEAR -D HAVE_TESSERACT -D HAVE_AVCODEC -D HAVE_AVFORMAT -D HAVE_AVUTIL -D HAVE_SWSCALE -D HAVE_SSE2 -D HAVE_GSL -D HAVE_CUDA -D HAVE_CUDNN -D HAVE_NCCL -D USE_SYSTEM_CUB -D HAVE_CUDA_SM80 -I /usr/local/include -internal-isystem /usr/local/lib/clang/18/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/12/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O3 -ferror-limit 19 -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -vectorize-loops -vectorize-slp -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/liu/actions-runner/_work/ccv/ccv/_analyze/2024-07-02-165253-122966-1 -x c ccv_basic.c
1#include "ccv.h"
2#include "ccv_internal.h"
3#if defined(HAVE_SSE21)
4#include <xmmintrin.h>
5#elif defined(HAVE_NEON)
6#include <arm_neon.h>
7#endif
8 
9/* sobel filter is fundamental to many other high-level algorithms,
10 * here includes 2 special case impl (for 1x3/3x1, 3x3) and one general impl */
11void ccv_sobel(ccv_dense_matrix_t* a, ccv_dense_matrix_t** b, int type, int dx, int dy)
12{
13	ccv_declare_derived_signature(sig, a->sig != 0, ccv_sign_with_format(64, "ccv_sobel(%d,%d)", dx, dy), a->sig, CCV_EOF_SIGN)char _ccv_identifier_13[(64)]; memset(_ccv_identifier_13, 0, (
64)); snprintf(_ccv_identifier_13, (64), ("ccv_sobel(%d,%d)")
, dx, dy); size_t _ccv_string_size_13 = (64);; uint64_t sig =
 (a->sig != 0) ? ccv_cache_generate_signature(_ccv_identifier_13
, _ccv_string_size_13, a->sig, ((uint64_t)0)) : 0;;
14	type = (type == 0) ? CCV_32S | CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF) : CCV_GET_DATA_TYPE(type)((type) & 0xFF000) | CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF);
15	ccv_dense_matrix_t* db = *b = ccv_dense_matrix_renew(*b, a->rows, a->cols, CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF) | CCV_ALL_DATA_TYPE(CCV_8U | CCV_32S | CCV_32F | CCV_64S | CCV_64F | CCV_16F | CCV_QX
), type, sig);
16	ccv_object_return_if_cached(, db){ if ((!(db) || (((int*)(db))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE))) { (void)((db) && (((int*)(db))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(
void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void
)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)
((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)(
(0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((
0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0
) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0)
 && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) &&
 (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (
((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && ((
(int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((
int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int
*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*
)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)
(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(
0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0
))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0)
)[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))
[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[
0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0
] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0]
 &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(
void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void
)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)
((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)(
(0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((
0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0
) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0)
 && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) &&
 (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (
((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && ((
(int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((
int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int
*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*
)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)
(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(
0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0
))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0)
)[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))
[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[
0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0
] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0]
 &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));;
; return ; } };
17	int i, j, k, c, ch = CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF);
18	unsigned char* a_ptr = a->data.u8;
19	unsigned char* b_ptr = db->data.u8;
20	if (dx == 1 && dy == 0)
21	{
22		assert(a->cols >= 3)((void) sizeof ((a->cols >= 3) ? 1 : 0), __extension__ (
{ if (a->cols >= 3) ; else __assert_fail ("a->cols >= 3"
, "ccv_basic.c", 22, __extension__ __PRETTY_FUNCTION__); }));
23		/* special case 1: 1x3 or 3x1 window */
24#define for_block(_for_get, _for_set) \
25		for (i = 0; i < a->rows; i++) \
26		{ \
27			for (k = 0; k < ch; k++) \
28				_for_set(b_ptr, k, 2 * (_for_get(a_ptr, ch + k) - _for_get(a_ptr, k))); \
29			for (j = 1; j < a->cols - 1; j++) \
30				for (k = 0; k < ch; k++) \
31					_for_set(b_ptr, j * ch + k, _for_get(a_ptr, (j + 1) * ch + k) - _for_get(a_ptr, (j - 1) * ch + k)); \
32			for (k = 0; k < ch; k++) \
33				_for_set(b_ptr, (a->cols - 1) * ch + k, 2 * (_for_get(a_ptr, (a->cols - 1) * ch + k) - _for_get(a_ptr, (a->cols - 2) * ch + k))); \
34			b_ptr += db->step; \
35			a_ptr += a->step; \
36		}
37		ccv_matrix_getter(a->type, ccv_matrix_setter, db->type, for_block){ switch (((a->type) & 0xFF000)) { case CCV_32S: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_32s_value, _ccv_set_32s_value); break; } case CCV_32F
: { for_block(_ccv_get_32s_value, _ccv_set_32f_value); break;
 } case CCV_64S: { for_block(_ccv_get_32s_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_32s_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_32s_value, _ccv_set_8u_value
); } } }; break; } case CCV_32F: { { switch (((db->type) &
 0xFF000)) { case CCV_32S: { for_block(_ccv_get_32f_value, _ccv_set_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_32f_value, _ccv_set_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_32f_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_32f_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_32f_value, _ccv_set_8u_value
); } } }; break; } case CCV_64S: { { switch (((db->type) &
 0xFF000)) { case CCV_32S: { for_block(_ccv_get_64s_value, _ccv_set_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_64s_value, _ccv_set_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_64s_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_64s_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_64s_value, _ccv_set_8u_value
); } } }; break; } case CCV_64F: { { switch (((db->type) &
 0xFF000)) { case CCV_32S: { for_block(_ccv_get_64f_value, _ccv_set_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_64f_value, _ccv_set_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_64f_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_64f_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_64f_value, _ccv_set_8u_value
); } } }; break; } default: { { switch (((db->type) & 0xFF000
)) { case CCV_32S: { for_block(_ccv_get_8u_value, _ccv_set_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_8u_value, _ccv_set_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_8u_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_8u_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_8u_value, _ccv_set_8u_value
); } } }; } } };
38#undef for_block
39	} else if (dx == 0 && dy == 1) {
40		assert(a->rows >= 3)((void) sizeof ((a->rows >= 3) ? 1 : 0), __extension__ (
{ if (a->rows >= 3) ; else __assert_fail ("a->rows >= 3"
, "ccv_basic.c", 40, __extension__ __PRETTY_FUNCTION__); }));
41		/* special case 1: 1x3 or 3x1 window */
42#define for_block(_for_get, _for_set) \
43		for (j = 0; j < a->cols; j++) \
44			for (k = 0; k < ch; k++) \
45				_for_set(b_ptr, j * ch + k, 2 * (_for_get(a_ptr + a->step, j * ch + k) - _for_get(a_ptr, j * ch + k))); \
46		a_ptr += a->step; \
47		b_ptr += db->step; \
48		for (i = 1; i < a->rows - 1; i++) \
49		{ \
50			for (j = 0; j < a->cols; j++) \
51				for (k = 0; k < ch; k++) \
52					_for_set(b_ptr, j * ch + k, _for_get(a_ptr + a->step, j * ch + k) - _for_get(a_ptr - a->step, j * ch + k)); \
53			a_ptr += a->step; \
54			b_ptr += db->step; \
55		} \
56		for (j = 0; j < a->cols; j++) \
57			for (k = 0; k < ch; k++) \
58				_for_set(b_ptr, j * ch + k, 2 * (_for_get(a_ptr, j * ch + k) - _for_get(a_ptr - a->step, j * ch + k)));
59		ccv_matrix_getter(a->type, ccv_matrix_setter, db->type, for_block){ switch (((a->type) & 0xFF000)) { case CCV_32S: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_32s_value, _ccv_set_32s_value); break; } case CCV_32F
: { for_block(_ccv_get_32s_value, _ccv_set_32f_value); break;
 } case CCV_64S: { for_block(_ccv_get_32s_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_32s_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_32s_value, _ccv_set_8u_value
); } } }; break; } case CCV_32F: { { switch (((db->type) &
 0xFF000)) { case CCV_32S: { for_block(_ccv_get_32f_value, _ccv_set_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_32f_value, _ccv_set_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_32f_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_32f_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_32f_value, _ccv_set_8u_value
); } } }; break; } case CCV_64S: { { switch (((db->type) &
 0xFF000)) { case CCV_32S: { for_block(_ccv_get_64s_value, _ccv_set_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_64s_value, _ccv_set_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_64s_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_64s_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_64s_value, _ccv_set_8u_value
); } } }; break; } case CCV_64F: { { switch (((db->type) &
 0xFF000)) { case CCV_32S: { for_block(_ccv_get_64f_value, _ccv_set_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_64f_value, _ccv_set_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_64f_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_64f_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_64f_value, _ccv_set_8u_value
); } } }; break; } default: { { switch (((db->type) & 0xFF000
)) { case CCV_32S: { for_block(_ccv_get_8u_value, _ccv_set_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_8u_value, _ccv_set_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_8u_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_8u_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_8u_value, _ccv_set_8u_value
); } } }; } } };
60#undef for_block
61	} else if ((dx == 1 && dy == 1) || (dx == -1 && dy == -1)) {
62		/* special case 2: 3x3 window with diagonal direction */
63		assert(a->rows >= 3 && a->cols >= 3)((void) sizeof ((a->rows >= 3 && a->cols >=
 3) ? 1 : 0), __extension__ ({ if (a->rows >= 3 &&
 a->cols >= 3) ; else __assert_fail ("a->rows >= 3 && a->cols >= 3"
, "ccv_basic.c", 63, __extension__ __PRETTY_FUNCTION__); }));
64#define for_block(_for_get, _for_set) \
65		for (j = 0; j < a->cols - 1; j++) \
66			for (k = 0; k < ch; k++) \
67				_for_set(b_ptr, j * ch + k, 2 * (_for_get(a_ptr + a->step, (j + 1) * ch + k) - _for_get(a_ptr, j * ch + k))); \
68		for (k = 0; k < ch; k++) \
69			_for_set(b_ptr, (a->cols - 1) * ch + k, 2 * (_for_get(a_ptr + a->step, (a->cols - 1) * ch + k) - _for_get(a_ptr, (a->cols - 1) * ch + k))); \
70		a_ptr += a->step; \
71		b_ptr += db->step; \
72		for (i = 1; i < a->rows - 1; i++) \
73		{ \
74			for (k = 0; k < ch; k++) \
75				_for_set(b_ptr, k, 2 * (_for_get(a_ptr + a->step, ch + k) - _for_get(a_ptr, k))); \
76			for (j = 1; j < a->cols - 1; j++) \
77				for (k = 0; k < ch; k++) \
78					_for_set(b_ptr, j * ch + k, _for_get(a_ptr + a->step, (j + 1) * ch + k) - _for_get(a_ptr - a->step, (j - 1) * ch + k)); \
79			for (k = 0; k < ch; k++) \
80				_for_set(b_ptr, (a->cols - 1) * ch + k, 2 * (_for_get(a_ptr, (a->cols - 1) * ch + k) - _for_get(a_ptr - a->step, (a->cols - 2) * ch + k))); \
81			a_ptr += a->step; \
82			b_ptr += db->step; \
83		} \
84		for (k = 0; k < ch; k++) \
85			_for_set(b_ptr, k, 2 * (_for_get(a_ptr, k) - _for_get(a_ptr - a->step, k))); \
86		for (j = 1; j < a->cols; j++) \
87			for (k = 0; k < ch; k++) \
88				_for_set(b_ptr, j * ch + k, 2 * (_for_get(a_ptr, j * ch + k) - _for_get(a_ptr - a->step, (j - 1) * ch + k)));
89		ccv_matrix_getter(a->type, ccv_matrix_setter, db->type, for_block){ switch (((a->type) & 0xFF000)) { case CCV_32S: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_32s_value, _ccv_set_32s_value); break; } case CCV_32F
: { for_block(_ccv_get_32s_value, _ccv_set_32f_value); break;
 } case CCV_64S: { for_block(_ccv_get_32s_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_32s_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_32s_value, _ccv_set_8u_value
); } } }; break; } case CCV_32F: { { switch (((db->type) &
 0xFF000)) { case CCV_32S: { for_block(_ccv_get_32f_value, _ccv_set_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_32f_value, _ccv_set_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_32f_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_32f_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_32f_value, _ccv_set_8u_value
); } } }; break; } case CCV_64S: { { switch (((db->type) &
 0xFF000)) { case CCV_32S: { for_block(_ccv_get_64s_value, _ccv_set_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_64s_value, _ccv_set_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_64s_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_64s_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_64s_value, _ccv_set_8u_value
); } } }; break; } case CCV_64F: { { switch (((db->type) &
 0xFF000)) { case CCV_32S: { for_block(_ccv_get_64f_value, _ccv_set_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_64f_value, _ccv_set_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_64f_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_64f_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_64f_value, _ccv_set_8u_value
); } } }; break; } default: { { switch (((db->type) & 0xFF000
)) { case CCV_32S: { for_block(_ccv_get_8u_value, _ccv_set_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_8u_value, _ccv_set_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_8u_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_8u_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_8u_value, _ccv_set_8u_value
); } } }; } } };
90#undef for_block
91	} else if ((dx == 1 && dy == -1) || (dx == -1 && dy == 1)) {
92		/* special case 2: 3x3 window with diagonal direction */
93		assert(a->rows >= 3 && a->cols >= 3)((void) sizeof ((a->rows >= 3 && a->cols >=
 3) ? 1 : 0), __extension__ ({ if (a->rows >= 3 &&
 a->cols >= 3) ; else __assert_fail ("a->rows >= 3 && a->cols >= 3"
, "ccv_basic.c", 93, __extension__ __PRETTY_FUNCTION__); }));
94#define for_block(_for_get, _for_set) \
95		for (k = 0; k < ch; k++) \
96			_for_set(b_ptr, k, 2 * (_for_get(a_ptr + a->step, k) - _for_get(a_ptr, k))); \
97		for (j = 1; j < a->cols; j++) \
98			for (k = 0; k < ch; k++) \
99				_for_set(b_ptr, j * ch + k, 2 * (_for_get(a_ptr + a->step, (j - 1) * ch + k) - _for_get(a_ptr, j * ch + k))); \
100		a_ptr += a->step; \
101		b_ptr += db->step; \
102		for (i = 1; i < a->rows - 1; i++) \
103		{ \
104			for (k = 0; k < ch; k++) \
105				_for_set(b_ptr, k, 2 * (_for_get(a_ptr, k) - _for_get(a_ptr - a->step, ch + k))); \
106			for (j = 1; j < a->cols - 1; j++) \
107				for (k = 0; k < ch; k++) \
108					_for_set(b_ptr, j * ch + k, _for_get(a_ptr + a->step, (j - 1) * ch + k) - _for_get(a_ptr - a->step, (j + 1) * ch + k)); \
109			for (k = 0; k < ch; k++) \
110				_for_set(b_ptr, (a->cols - 1) * ch + k, 2 * (_for_get(a_ptr + a->step, (a->cols - 2) * ch + k) - _for_get(a_ptr, (a->cols - 1) * ch + k))); \
111			a_ptr += a->step; \
112			b_ptr += db->step; \
113		} \
114		for (j = 0; j < a->cols - 1; j++) \
115			for (k = 0; k < ch; k++) \
116				_for_set(b_ptr, j * ch + k, 2 * (_for_get(a_ptr, j * ch + k) - _for_get(a_ptr - a->step, (j + 1) * ch + k))); \
117		for (k = 0; k < ch; k++) \
118			_for_set(b_ptr, (a->cols - 1) * ch + k, 2 * (_for_get(a_ptr, (a->cols - 1) * ch + k) - _for_get(a_ptr - a->step, (a->cols - 1) * ch + k)));
119		ccv_matrix_getter(a->type, ccv_matrix_setter, db->type, for_block){ switch (((a->type) & 0xFF000)) { case CCV_32S: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_32s_value, _ccv_set_32s_value); break; } case CCV_32F
: { for_block(_ccv_get_32s_value, _ccv_set_32f_value); break;
 } case CCV_64S: { for_block(_ccv_get_32s_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_32s_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_32s_value, _ccv_set_8u_value
); } } }; break; } case CCV_32F: { { switch (((db->type) &
 0xFF000)) { case CCV_32S: { for_block(_ccv_get_32f_value, _ccv_set_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_32f_value, _ccv_set_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_32f_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_32f_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_32f_value, _ccv_set_8u_value
); } } }; break; } case CCV_64S: { { switch (((db->type) &
 0xFF000)) { case CCV_32S: { for_block(_ccv_get_64s_value, _ccv_set_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_64s_value, _ccv_set_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_64s_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_64s_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_64s_value, _ccv_set_8u_value
); } } }; break; } case CCV_64F: { { switch (((db->type) &
 0xFF000)) { case CCV_32S: { for_block(_ccv_get_64f_value, _ccv_set_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_64f_value, _ccv_set_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_64f_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_64f_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_64f_value, _ccv_set_8u_value
); } } }; break; } default: { { switch (((db->type) & 0xFF000
)) { case CCV_32S: { for_block(_ccv_get_8u_value, _ccv_set_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_8u_value, _ccv_set_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_8u_value, _ccv_set_64s_value
); break; } case CCV_64F: { for_block(_ccv_get_8u_value, _ccv_set_64f_value
); break; } default: { for_block(_ccv_get_8u_value, _ccv_set_8u_value
); } } }; } } };
120#undef for_block
121	} else if (dx == 3 && dy == 0) {
122		assert(a->rows >= 3 && a->cols >= 3)((void) sizeof ((a->rows >= 3 && a->cols >=
 3) ? 1 : 0), __extension__ ({ if (a->rows >= 3 &&
 a->cols >= 3) ; else __assert_fail ("a->rows >= 3 && a->cols >= 3"
, "ccv_basic.c", 122, __extension__ __PRETTY_FUNCTION__); }));
123		/* special case 3: 3x3 window, corresponding sigma = 0.85 */
124		unsigned char* buf = (unsigned char*)alloca(db->step)__builtin_alloca (db->step);
125#define for_block(_for_get, _for_set_b, _for_get_b) \
126		for (j = 0; j < a->cols; j++) \
127			for (k = 0; k < ch; k++) \
128				_for_set_b(b_ptr, j * ch + k, _for_get(a_ptr + a->step, j * ch + k) + 3 * _for_get(a_ptr, j * ch + k)); \
129		a_ptr += a->step; \
130		b_ptr += db->step; \
131		for (i = 1; i < a->rows - 1; i++) \
132		{ \
133			for (j = 0; j < a->cols; j++) \
134				for (k = 0; k < ch; k++) \
135					_for_set_b(b_ptr, j * ch + k, _for_get(a_ptr + a->step, j * ch + k) + 2 * _for_get(a_ptr, j * ch + k) + _for_get(a_ptr - a->step, j * ch + k)); \
136			a_ptr += a->step; \
137			b_ptr += db->step; \
138		} \
139		for (j = 0; j < a->cols; j++) \
140			for (k = 0; k < ch; k++) \
141				_for_set_b(b_ptr, j * ch + k, 3 * _for_get(a_ptr, j * ch + k) + _for_get(a_ptr - a->step, j * ch + k)); \
142		b_ptr = db->data.u8; \
143		for (i = 0; i < a->rows; i++) \
144		{ \
145			for (k = 0; k < ch; k++) \
146				_for_set_b(buf, k, _for_get_b(b_ptr, ch + k) - _for_get_b(b_ptr, k)); \
147			for (j = 1; j < a->cols - 1; j++) \
148				for (k = 0; k < ch; k++) \
149					_for_set_b(buf, j * ch + k, _for_get_b(b_ptr, (j + 1) * ch + k) - _for_get_b(b_ptr, (j - 1) * ch + k)); \
150			for (k = 0; k < ch; k++) \
151				_for_set_b(buf, (a->cols - 1) * ch + k, _for_get_b(b_ptr, (a->cols - 1) * ch + k) - _for_get_b(b_ptr, (a->cols - 2) * ch + k)); \
152			memcpy(b_ptr, buf, db->step); \
153			b_ptr += db->step; \
154		}
155		ccv_matrix_getter(a->type, ccv_matrix_setter_getter, db->type, for_block){ switch (((a->type) & 0xFF000)) { case CCV_32S: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_32s_value, _ccv_set_32s_value, _ccv_get_32s_value); break
; } case CCV_32F: { for_block(_ccv_get_32s_value, _ccv_set_32f_value
, _ccv_get_32f_value); break; } case CCV_64S: { for_block(_ccv_get_32s_value
, _ccv_set_64s_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(_ccv_get_32s_value, _ccv_set_64f_value, _ccv_get_64f_value
); break; } default: { for_block(_ccv_get_32s_value, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } case CCV_32F: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_32f_value, _ccv_set_32s_value, _ccv_get_32s_value); break
; } case CCV_32F: { for_block(_ccv_get_32f_value, _ccv_set_32f_value
, _ccv_get_32f_value); break; } case CCV_64S: { for_block(_ccv_get_32f_value
, _ccv_set_64s_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(_ccv_get_32f_value, _ccv_set_64f_value, _ccv_get_64f_value
); break; } default: { for_block(_ccv_get_32f_value, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } case CCV_64S: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_64s_value, _ccv_set_32s_value, _ccv_get_32s_value); break
; } case CCV_32F: { for_block(_ccv_get_64s_value, _ccv_set_32f_value
, _ccv_get_32f_value); break; } case CCV_64S: { for_block(_ccv_get_64s_value
, _ccv_set_64s_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(_ccv_get_64s_value, _ccv_set_64f_value, _ccv_get_64f_value
); break; } default: { for_block(_ccv_get_64s_value, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } case CCV_64F: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_64f_value, _ccv_set_32s_value, _ccv_get_32s_value); break
; } case CCV_32F: { for_block(_ccv_get_64f_value, _ccv_set_32f_value
, _ccv_get_32f_value); break; } case CCV_64S: { for_block(_ccv_get_64f_value
, _ccv_set_64s_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(_ccv_get_64f_value, _ccv_set_64f_value, _ccv_get_64f_value
); break; } default: { for_block(_ccv_get_64f_value, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } default: { { switch (((
db->type) & 0xFF000)) { case CCV_32S: { for_block(_ccv_get_8u_value
, _ccv_set_32s_value, _ccv_get_32s_value); break; } case CCV_32F
: { for_block(_ccv_get_8u_value, _ccv_set_32f_value, _ccv_get_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_8u_value, _ccv_set_64s_value
, _ccv_get_64s_value); break; } case CCV_64F: { for_block(_ccv_get_8u_value
, _ccv_set_64f_value, _ccv_get_64f_value); break; } default: {
 for_block(_ccv_get_8u_value, _ccv_set_8u_value, _ccv_get_8u_value
); } } }; } } };
156#undef for_block
157	} else if (dx == 0 && dy == 3) {
158		assert(a->rows >= 3 && a->cols >= 3)((void) sizeof ((a->rows >= 3 && a->cols >=
 3) ? 1 : 0), __extension__ ({ if (a->rows >= 3 &&
 a->cols >= 3) ; else __assert_fail ("a->rows >= 3 && a->cols >= 3"
, "ccv_basic.c", 158, __extension__ __PRETTY_FUNCTION__); }));
159		/* special case 3: 3x3 window, corresponding sigma = 0.85 */
160		unsigned char* buf = (unsigned char*)alloca(db->step)__builtin_alloca (db->step);
161#define for_block(_for_get, _for_set_b, _for_get_b) \
162		for (j = 0; j < a->cols; j++) \
163			for (k = 0; k < ch; k++) \
164				_for_set_b(b_ptr, j * ch + k, _for_get(a_ptr + a->step, j * ch + k) - _for_get(a_ptr, j * ch + k)); \
165		a_ptr += a->step; \
166		b_ptr += db->step; \
167		for (i = 1; i < a->rows - 1; i++) \
168		{ \
169			for (j = 0; j < a->cols; j++) \
170				for (k = 0; k < ch; k++) \
171					_for_set_b(b_ptr, j * ch + k, _for_get(a_ptr + a->step, j * ch + k) - _for_get(a_ptr - a->step, j * ch + k)); \
172			a_ptr += a->step; \
173			b_ptr += db->step; \
174		} \
175		for (j = 0; j < a->cols; j++) \
176			for (k = 0; k < ch; k++) \
177				_for_set_b(b_ptr, j * ch + k, _for_get(a_ptr, j * ch + k) - _for_get(a_ptr - a->step, j * ch + k)); \
178		b_ptr = db->data.u8; \
179		for (i = 0; i < a->rows; i++) \
180		{ \
181			for (k = 0; k < ch; k++) \
182				_for_set_b(buf, k, _for_get_b(b_ptr, ch + k) + 3 * _for_get_b(b_ptr, k)); \
183			for (j = 1; j < a->cols - 1; j++) \
184				for (k = 0; k < ch; k++) \
185					_for_set_b(buf, j * ch + k, _for_get_b(b_ptr, (j + 1) * ch + k) + 2 * _for_get_b(b_ptr, j * ch + k) + _for_get_b(b_ptr, (j - 1) * ch + k)); \
186			for (k = 0; k < ch; k++) \
187				_for_set_b(buf, (a->cols - 1) * ch + k, _for_get_b(b_ptr, (a->cols - 2) * ch + k) + 3 * _for_get_b(b_ptr, (a->cols - 1) * ch + k)); \
188			memcpy(b_ptr, buf, db->step); \
189			b_ptr += db->step; \
190		}
191		ccv_matrix_getter(a->type, ccv_matrix_setter_getter, db->type, for_block){ switch (((a->type) & 0xFF000)) { case CCV_32S: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_32s_value, _ccv_set_32s_value, _ccv_get_32s_value); break
; } case CCV_32F: { for_block(_ccv_get_32s_value, _ccv_set_32f_value
, _ccv_get_32f_value); break; } case CCV_64S: { for_block(_ccv_get_32s_value
, _ccv_set_64s_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(_ccv_get_32s_value, _ccv_set_64f_value, _ccv_get_64f_value
); break; } default: { for_block(_ccv_get_32s_value, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } case CCV_32F: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_32f_value, _ccv_set_32s_value, _ccv_get_32s_value); break
; } case CCV_32F: { for_block(_ccv_get_32f_value, _ccv_set_32f_value
, _ccv_get_32f_value); break; } case CCV_64S: { for_block(_ccv_get_32f_value
, _ccv_set_64s_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(_ccv_get_32f_value, _ccv_set_64f_value, _ccv_get_64f_value
); break; } default: { for_block(_ccv_get_32f_value, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } case CCV_64S: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_64s_value, _ccv_set_32s_value, _ccv_get_32s_value); break
; } case CCV_32F: { for_block(_ccv_get_64s_value, _ccv_set_32f_value
, _ccv_get_32f_value); break; } case CCV_64S: { for_block(_ccv_get_64s_value
, _ccv_set_64s_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(_ccv_get_64s_value, _ccv_set_64f_value, _ccv_get_64f_value
); break; } default: { for_block(_ccv_get_64s_value, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } case CCV_64F: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_64f_value, _ccv_set_32s_value, _ccv_get_32s_value); break
; } case CCV_32F: { for_block(_ccv_get_64f_value, _ccv_set_32f_value
, _ccv_get_32f_value); break; } case CCV_64S: { for_block(_ccv_get_64f_value
, _ccv_set_64s_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(_ccv_get_64f_value, _ccv_set_64f_value, _ccv_get_64f_value
); break; } default: { for_block(_ccv_get_64f_value, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } default: { { switch (((
db->type) & 0xFF000)) { case CCV_32S: { for_block(_ccv_get_8u_value
, _ccv_set_32s_value, _ccv_get_32s_value); break; } case CCV_32F
: { for_block(_ccv_get_8u_value, _ccv_set_32f_value, _ccv_get_32f_value
); break; } case CCV_64S: { for_block(_ccv_get_8u_value, _ccv_set_64s_value
, _ccv_get_64s_value); break; } case CCV_64F: { for_block(_ccv_get_8u_value
, _ccv_set_64f_value, _ccv_get_64f_value); break; } default: {
 for_block(_ccv_get_8u_value, _ccv_set_8u_value, _ccv_get_8u_value
); } } }; } } };
192#undef for_block
193	} else {
194		/* general case: in this case, I will generate a separable filter, and do the convolution */
195		int fsz = ccv_max(dx, dy)({ typeof (dx) _a = (dx); typeof (dy) _b = (dy); (_a > _b)
 ? _a : _b; });
196		assert(fsz % 2 == 1)((void) sizeof ((fsz % 2 == 1) ? 1 : 0), __extension__ ({ if (
fsz % 2 == 1) ; else __assert_fail ("fsz % 2 == 1", "ccv_basic.c"
, 196, __extension__ __PRETTY_FUNCTION__); }));
197		int hfz = fsz / 2;
198		unsigned char* df = (unsigned char*)alloca(sizeof(double) * fsz)__builtin_alloca (sizeof(double) * fsz);
199		unsigned char* gf = (unsigned char*)alloca(sizeof(double) * fsz)__builtin_alloca (sizeof(double) * fsz);
200		/* the sigma calculation is linear derviation of 3x3 - 0.85, 5x5 - 1.32 */
201		double sigma = ((fsz - 1) / 2) * 0.47 + 0.38;
202		double sigma2 = (2.0 * sigma * sigma);
203		/* 2.5 is the factor to make the kernel "visible" in integer setting */
204		double psigma3 = 2.5 / sqrt(sqrt(2 * CCV_PI(3.141592653589793)) * sigma * sigma * sigma);
205		for (i = 0; i < fsz; i++)
206		{
207			((double*)df)[i] = (i - hfz) * exp(-((i - hfz) * (i - hfz)) / sigma2) * psigma3;
208			((double*)gf)[i] = exp(-((i - hfz) * (i - hfz)) / sigma2) * psigma3;
209		}
210		if (db->type & CCV_32S)
211		{
212			for (i = 0; i < fsz; i++)
213			{
214				// df could be negative, thus, (int)(x + 0.5) shortcut will not work
215				((int*)df)[i] = (int)round(((double*)df)[i] * 256.0);
216				((int*)gf)[i] = (int)(((double*)gf)[i] * 256.0 + 0.5);
217			}
218		} else {
219			for (i = 0; i < fsz; i++)
220			{
221				ccv_set_value(db->type, df, i, ((double*)df)[i], 0)switch ((((db->type)) & 0xFF000)) { case CCV_32S: ((int
*)(df))[(i)] = (int)(((double*)df)[i]) >> 0; break; case
 CCV_32F: ((float*)(df))[(i)] = (float)((double*)df)[i]; break
; case CCV_64S: ((int64_t*)(df))[(i)] = (int64_t)(((double*)df
)[i]) >> 0; break; case CCV_64F: ((double*)(df))[(i)] =
 (double)((double*)df)[i]; break; default: ((unsigned char*)(
df))[(i)] = ({ typeof (0) _a = (0); typeof (255) _b = (255); typeof
 ((int)(((double*)df)[i]) >> 0) _x = ((int)(((double*)df
)[i]) >> 0); (_x < _a) ? _a : ((_x > _b) ? _b : _x
); }); };
222				ccv_set_value(db->type, gf, i, ((double*)gf)[i], 0)switch ((((db->type)) & 0xFF000)) { case CCV_32S: ((int
*)(gf))[(i)] = (int)(((double*)gf)[i]) >> 0; break; case
 CCV_32F: ((float*)(gf))[(i)] = (float)((double*)gf)[i]; break
; case CCV_64S: ((int64_t*)(gf))[(i)] = (int64_t)(((double*)gf
)[i]) >> 0; break; case CCV_64F: ((double*)(gf))[(i)] =
 (double)((double*)gf)[i]; break; default: ((unsigned char*)(
gf))[(i)] = ({ typeof (0) _a = (0); typeof (255) _b = (255); typeof
 ((int)(((double*)gf)[i]) >> 0) _x = ((int)(((double*)gf
)[i]) >> 0); (_x < _a) ? _a : ((_x > _b) ? _b : _x
); }); };
223			}
224		}
225		if (dx < dy)
226		{
227			unsigned char* tf = df;
228			df = gf;
229			gf = tf;
230		}
231		unsigned char* buf = (unsigned char*)alloca(sizeof(double) * ch * (fsz + ccv_max(a->rows, a->cols)))__builtin_alloca (sizeof(double) * ch * (fsz + ({ typeof (a->
rows) _a = (a->rows); typeof (a->cols) _b = (a->cols
); (_a > _b) ? _a : _b; })));
232#define for_block(_for_get, _for_type_b, _for_set_b, _for_get_b) \
233		for (i = 0; i < a->rows; i++) \
234		{ \
235			for (j = 0; j < hfz; j++) \
236				for (k = 0; k < ch; k++) \
237					_for_set_b(buf, j * ch + k, _for_get(a_ptr, k)); \
238			for (j = 0; j < a->cols; j++) \
239				for (k = 0; k < ch; k++) \
240					_for_set_b(buf, (j + hfz) * ch + k, _for_get(a_ptr, j * ch + k)); \
241			for (j = a->cols; j < a->cols + hfz; j++) \
242				for (k = 0; k < ch; k++) \
243					_for_set_b(buf, (j + hfz) * ch + k, _for_get(a_ptr, (a->cols - 1) * ch + k)); \
244			for (j = 0; j < a->cols; j++) \
245			{ \
246				for (c = 0; c < ch; c++) \
247				{ \
248					_for_type_b sum = 0; \
249					for (k = 0; k < fsz; k++) \
250						sum += _for_get_b(buf, (j + k) * ch + c) * _for_get_b(df, k); \
251					_for_set_b(b_ptr, j * ch + c, sum, 8); \
252				} \
253			} \
254			a_ptr += a->step; \
255			b_ptr += db->step; \
256		} \
257		b_ptr = db->data.u8; \
258		for (i = 0; i < a->cols; i++) \
259		{ \
260			for (j = 0; j < hfz; j++) \
261				for (k = 0; k < ch; k++) \
262					_for_set_b(buf, j * ch + k, _for_get_b(b_ptr, i * ch + k)); \
263			for (j = 0; j < a->rows; j++) \
264				for (k = 0; k < ch; k++) \
265					_for_set_b(buf, (j + hfz) * ch + k, _for_get_b(b_ptr + j * db->step, i * ch + k)); \
266			for (j = a->rows; j < a->rows + hfz; j++) \
267				for (k = 0; k < ch; k++) \
268					_for_set_b(buf, (j + hfz) * ch + k, _for_get_b(b_ptr + (a->rows - 1) * db->step, i * ch + k)); \
269			for (j = 0; j < a->rows; j++) \
270			{ \
271				for (c = 0; c < ch; c++) \
272				{ \
273					_for_type_b sum = 0; \
274					for (k = 0; k < fsz; k++) \
275						sum += _for_get_b(buf, (j + k) * ch + c) * _for_get_b(gf, k); \
276					_for_set_b(b_ptr + j * db->step, i * ch + c, sum, 8); \
277				} \
278			} \
279		}
280		ccv_matrix_getter(a->type, ccv_matrix_typeof_setter_getter, db->type, for_block){ switch (((a->type) & 0xFF000)) { case CCV_32S: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_32s_value, int, _ccv_set_32s_value, _ccv_get_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_32s_value, float
, _ccv_set_32f_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(_ccv_get_32s_value, int64_t, _ccv_set_64s_value
, _ccv_get_64s_value); break; } case CCV_64F: { for_block(_ccv_get_32s_value
, double, _ccv_set_64f_value, _ccv_get_64f_value); break; } default
: { for_block(_ccv_get_32s_value, unsigned char, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } case CCV_32F: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_32f_value, int, _ccv_set_32s_value, _ccv_get_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_32f_value, float
, _ccv_set_32f_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(_ccv_get_32f_value, int64_t, _ccv_set_64s_value
, _ccv_get_64s_value); break; } case CCV_64F: { for_block(_ccv_get_32f_value
, double, _ccv_set_64f_value, _ccv_get_64f_value); break; } default
: { for_block(_ccv_get_32f_value, unsigned char, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } case CCV_64S: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_64s_value, int, _ccv_set_32s_value, _ccv_get_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_64s_value, float
, _ccv_set_32f_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(_ccv_get_64s_value, int64_t, _ccv_set_64s_value
, _ccv_get_64s_value); break; } case CCV_64F: { for_block(_ccv_get_64s_value
, double, _ccv_set_64f_value, _ccv_get_64f_value); break; } default
: { for_block(_ccv_get_64s_value, unsigned char, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } case CCV_64F: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_64f_value, int, _ccv_set_32s_value, _ccv_get_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_64f_value, float
, _ccv_set_32f_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(_ccv_get_64f_value, int64_t, _ccv_set_64s_value
, _ccv_get_64s_value); break; } case CCV_64F: { for_block(_ccv_get_64f_value
, double, _ccv_set_64f_value, _ccv_get_64f_value); break; } default
: { for_block(_ccv_get_64f_value, unsigned char, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } default: { { switch (((
db->type) & 0xFF000)) { case CCV_32S: { for_block(_ccv_get_8u_value
, int, _ccv_set_32s_value, _ccv_get_32s_value); break; } case
 CCV_32F: { for_block(_ccv_get_8u_value, float, _ccv_set_32f_value
, _ccv_get_32f_value); break; } case CCV_64S: { for_block(_ccv_get_8u_value
, int64_t, _ccv_set_64s_value, _ccv_get_64s_value); break; } case
 CCV_64F: { for_block(_ccv_get_8u_value, double, _ccv_set_64f_value
, _ccv_get_64f_value); break; } default: { for_block(_ccv_get_8u_value
, unsigned char, _ccv_set_8u_value, _ccv_get_8u_value); } } }
; } } };
281#undef for_block
282	}
283}
284 
285/* the fast arctan function adopted from OpenCV */
286static void _ccv_atan2(float* x, float* y, float* angle, float* mag, int len)
287{
288	int i = 0;
289	float scale = (float)(180.0 / CCV_PI(3.141592653589793));
290#ifdef HAVE_SSE21
291#ifndef _WIN32
292	union { int i; float fl; } iabsmask; iabsmask.i = 0x7fffffff;
293	__m128 eps = _mm_set1_ps((float)1e-6), absmask = _mm_set1_ps(iabsmask.fl);
294	__m128 _90 = _mm_set1_ps((float)(3.141592654 * 0.5)), _180 = _mm_set1_ps((float)3.141592654), _360 = _mm_set1_ps((float)(3.141592654 * 2));
295	__m128 zero = _mm_setzero_ps(), _0_28 = _mm_set1_ps(0.28f), scale4 = _mm_set1_ps(scale);
296	
297	for(; i <= len - 4; i += 4)
298	{
299		__m128 x4 = _mm_loadu_ps(x + i), y4 = _mm_loadu_ps(y + i);
300		__m128 xq4 = _mm_mul_ps(x4, x4), yq4 = _mm_mul_ps(y4, y4);
301		__m128 xly = _mm_cmplt_ps(xq4, yq4);
302		__m128 z4 = _mm_div_ps(_mm_mul_ps(x4, y4), _mm_add_ps(_mm_add_ps(_mm_max_ps(xq4, yq4), _mm_mul_ps(_mm_min_ps(xq4, yq4), _0_28)), eps));
303 
304		// a4 <- x < y ? 90 : 0;
305		__m128 a4 = _mm_and_ps(xly, _90);
306		// a4 <- (y < 0 ? 360 - a4 : a4) == ((x < y ? y < 0 ? 270 : 90) : (y < 0 ? 360 : 0))
307		__m128 mask = _mm_cmplt_ps(y4, zero);
308		a4 = _mm_or_ps(_mm_and_ps(_mm_sub_ps(_360, a4), mask), _mm_andnot_ps(mask, a4));
309		// a4 <- (x < 0 && !(x < y) ? 180 : a4)
310		mask = _mm_andnot_ps(xly, _mm_cmplt_ps(x4, zero));
311		a4 = _mm_or_ps(_mm_and_ps(_180, mask), _mm_andnot_ps(mask, a4));
312		
313		// a4 <- (x < y ? a4 - z4 : a4 + z4)
314		a4 = _mm_mul_ps(_mm_add_ps(_mm_xor_ps(z4, _mm_andnot_ps(absmask, xly)), a4), scale4);
315		__m128 m4 = _mm_sqrt_ps(_mm_add_ps(xq4, yq4));
316		_mm_storeu_ps(angle + i, a4);
317		_mm_storeu_ps(mag + i, m4);
318	}
319#endif
320#endif
321	for(; i < len; i++)
322	{
323		float xf = x[i], yf = y[i];
324		float a, x2 = xf * xf, y2 = yf * yf;
325		if(y2 <= x2)
326			a = xf * yf / (x2 + 0.28f * y2 + (float)1e-6) + (float)(xf < 0 ? CCV_PI(3.141592653589793) : yf >= 0 ? 0 : CCV_PI(3.141592653589793) * 2);
327		else
328			a = (float)(yf >= 0 ? CCV_PI(3.141592653589793) * 0.5 : CCV_PI(3.141592653589793) * 1.5) - xf * yf / (y2 + 0.28f * x2 + (float)1e-6);
329		angle[i] = a * scale;
330		mag[i] = sqrtf(x2 + y2);
331	}
332}
333 
334void ccv_gradient(ccv_dense_matrix_t* a, ccv_dense_matrix_t** theta, int ttype, ccv_dense_matrix_t** m, int mtype, int dx, int dy)
335{
336	ccv_declare_derived_signature(tsig, a->sig != 0, ccv_sign_with_format(64, "ccv_gradient(theta,%d,%d)", dx, dy), a->sig, CCV_EOF_SIGN)char _ccv_identifier_336[(64)]; memset(_ccv_identifier_336, 0
, (64)); snprintf(_ccv_identifier_336, (64), ("ccv_gradient(theta,%d,%d)"
), dx, dy); size_t _ccv_string_size_336 = (64);; uint64_t tsig
 = (a->sig != 0) ? ccv_cache_generate_signature(_ccv_identifier_336
, _ccv_string_size_336, a->sig, ((uint64_t)0)) : 0;;
337	ccv_declare_derived_signature(msig, a->sig != 0, ccv_sign_with_format(64, "ccv_gradient(m,%d,%d)", dx, dy), a->sig, CCV_EOF_SIGN)char _ccv_identifier_337[(64)]; memset(_ccv_identifier_337, 0
, (64)); snprintf(_ccv_identifier_337, (64), ("ccv_gradient(m,%d,%d)"
), dx, dy); size_t _ccv_string_size_337 = (64);; uint64_t msig
 = (a->sig != 0) ? ccv_cache_generate_signature(_ccv_identifier_337
, _ccv_string_size_337, a->sig, ((uint64_t)0)) : 0;;
338	int ch = CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF);
339	ccv_dense_matrix_t* dtheta = *theta = ccv_dense_matrix_renew(*theta, a->rows, a->cols, CCV_32F | ch, CCV_32F | ch, tsig);
340	ccv_dense_matrix_t* dm = *m = ccv_dense_matrix_renew(*m, a->rows, a->cols, CCV_32F | ch, CCV_32F | ch, msig);
341	assert(dtheta && dm)((void) sizeof ((dtheta && dm) ? 1 : 0), __extension__
 ({ if (dtheta && dm) ; else __assert_fail ("dtheta && dm"
, "ccv_basic.c", 341, __extension__ __PRETTY_FUNCTION__); }));
342	ccv_object_return_if_cached(, dtheta, dm){ if ((!(dtheta) || (((int*)(dtheta))[0] & CCV_GARBAGE)) &&
 (!(dm) || (((int*)(dm))[0] & CCV_GARBAGE)) && (!
(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) ||
 (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE))) { (void)((dtheta) && (((int*)(dtheta)
)[0] &= ~CCV_GARBAGE));(void)((dm) && (((int*)(dm
))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0)
)[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))
[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[
0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0
] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0]
 &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(
void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void
)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)
((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)(
(0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((
0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0
) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0)
 && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) &&
 (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (
((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && ((
(int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((
int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int
*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*
)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)
(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(
0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0
))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0)
)[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))
[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[
0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0
] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0]
 &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(
void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void
)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)
((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)(
(0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((
0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0
) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0)
 && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) &&
 (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (
((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && ((
(int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((
int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int
*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*
)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)
(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(
0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0
))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0)
)[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))
[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[
0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0
] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0]
 &= ~CCV_GARBAGE));;; return ; } };
343	ccv_revive_object_if_cached(dtheta, dm)(void)((dtheta) && (((int*)(dtheta))[0] &= ~CCV_GARBAGE
));(void)((dm) && (((int*)(dm))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(
void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void
)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)
((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)(
(0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((
0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0
) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0)
 && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) &&
 (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (
((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && ((
(int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((
int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int
*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*
)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)
(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(
0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0
))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0)
)[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))
[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[
0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0
] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0]
 &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(
void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void
)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)
((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)(
(0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((
0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0
) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0)
 && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) &&
 (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (
((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && ((
(int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((
int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int
*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*
)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)
(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(
0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0
))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0)
)[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))
[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[
0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0
] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0]
 &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(
void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));;;
344	ccv_dense_matrix_t* tx = 0;
345	ccv_dense_matrix_t* ty = 0;
346	ccv_sobel(a, &tx, CCV_32F | ch, dx, 0);
347	ccv_sobel(a, &ty, CCV_32F | ch, 0, dy);
348	_ccv_atan2(tx->data.f32, ty->data.f32, dtheta->data.f32, dm->data.f32, ch * a->rows * a->cols);
349	ccv_matrix_free(tx);
350	ccv_matrix_free(ty);
351}
352 
353static void _ccv_flip_y_self(ccv_dense_matrix_t* a)
354{
355	int i;
356	unsigned char* buffer = (unsigned char*)alloca(a->step)__builtin_alloca (a->step);
357	unsigned char* a_ptr = a->data.u8;
358	unsigned char* b_ptr = a->data.u8 + (a->rows - 1) * a->step;
359	for (i = 0; i < a->rows / 2; i++)
360	{
361		memcpy(buffer, a_ptr, a->step);
362		memcpy(a_ptr, b_ptr, a->step);
363		memcpy(b_ptr, buffer, a->step);
364		a_ptr += a->step;
365		b_ptr -= a->step;
366	}
367}
368 
369static void _ccv_flip_x_self(ccv_dense_matrix_t* a)
370{
371	int i, j;
372	int len = CCV_GET_DATA_TYPE_SIZE(a->type)_ccv_get_data_type_size[((a->type) & 0xFF000) >>
 12] * CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF);
373	unsigned char* buffer = (unsigned char*)alloca(len)__builtin_alloca (len);
374	unsigned char* a_ptr = a->data.u8;
375	for (i = 0; i < a->rows; i++)
376	{
377		for (j = 0; j < a->cols / 2; j++)
378		{
379			memcpy(buffer, a_ptr + j * len, len);
380			memcpy(a_ptr + j * len, a_ptr + (a->cols - 1 - j) * len, len);
381			memcpy(a_ptr + (a->cols - 1 - j) * len, buffer, len);
382		}
383		a_ptr += a->step;
384	}
385}
386 
387void ccv_flip(ccv_dense_matrix_t* a, ccv_dense_matrix_t** b, int btype, int type)
388{
389	/* this is the special case where ccv_declare_derived_signature_* macros cannot handle properly */
390	uint64_t sig = a->sig;
391	if (type & CCV_FLIP_Y)
392		sig = (a->sig == 0) ? 0 : ccv_cache_generate_signature("ccv_flip_y", 10, sig, CCV_EOF_SIGN((uint64_t)0));
393	if (type & CCV_FLIP_X)
394		sig = (a->sig == 0) ? 0 : ccv_cache_generate_signature("ccv_flip_x", 10, sig, CCV_EOF_SIGN((uint64_t)0));
395	ccv_dense_matrix_t* db;
396	if (b == 0)
397	{
398		db = a;
399		if (a->sig != 0)
400		{
401			btype = CCV_GET_DATA_TYPE(a->type)((a->type) & 0xFF000) | CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF);
402			sig = ccv_cache_generate_signature((const char*)&btype, sizeof(int), sig, CCV_EOF_SIGN((uint64_t)0));
403			a->sig = sig;
404		}
405	} else {
406		btype = CCV_GET_DATA_TYPE(a->type)((a->type) & 0xFF000) | CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF);
407		*b = db = ccv_dense_matrix_renew(*b, a->rows, a->cols, btype, btype, sig);
408		ccv_object_return_if_cached(, db){ if ((!(db) || (((int*)(db))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE))) { (void)((db) && (((int*)(db))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(
void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void
)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)
((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)(
(0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((
0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0
) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0)
 && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) &&
 (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (
((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && ((
(int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((
int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int
*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*
)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)
(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(
0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0
))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0)
)[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))
[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[
0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0
] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0]
 &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(
void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void
)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)
((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)(
(0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((
0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0
) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0)
 && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) &&
 (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (
((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && ((
(int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((
int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int
*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*
)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)
(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(
0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0
))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0)
)[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))
[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[
0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0
] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0]
 &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));;
; return ; } };
409		if (a->data.u8 != db->data.u8)
410			memcpy(db->data.u8, a->data.u8, a->rows * a->step);
411	}
412	if (type & CCV_FLIP_Y)
413		_ccv_flip_y_self(db);
414	if (type & CCV_FLIP_X)
415		_ccv_flip_x_self(db);
416}
417 
418void ccv_blur(ccv_dense_matrix_t* a, ccv_dense_matrix_t** b, int type, double sigma)
419{
420	ccv_declare_derived_signature(sig, a->sig != 0, ccv_sign_with_format(64, "ccv_blur(%la)", sigma), a->sig, CCV_EOF_SIGN)char _ccv_identifier_420[(64)]; memset(_ccv_identifier_420, 0
, (64)); snprintf(_ccv_identifier_420, (64), ("ccv_blur(%la)"
), sigma); size_t _ccv_string_size_420 = (64);; uint64_t sig =
 (a->sig != 0) ? ccv_cache_generate_signature(_ccv_identifier_420
, _ccv_string_size_420, a->sig, ((uint64_t)0)) : 0;;
1
Assuming field 'sig' is equal to 0→
2
←
'?' condition is false→
421	type = (type == 0) ? CCV_GET_DATA_TYPE(a->type)((a->type) & 0xFF000) | CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF) : CCV_GET_DATA_TYPE(type)((type) & 0xFF000) | CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF);
3
←
Assuming 'type' is not equal to 0→
4
←
'?' condition is false→
422	ccv_dense_matrix_t* db = *b = ccv_dense_matrix_renew(*b, a->rows, a->cols, CCV_ALL_DATA_TYPE(CCV_8U | CCV_32S | CCV_32F | CCV_64S | CCV_64F | CCV_16F | CCV_QX
) | CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF), type, sig);
423	ccv_object_return_if_cached(, db){ if ((!(db) || (((int*)(db))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE))) { (void)((db) && (((int*)(db))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(
void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void
)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)
((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)(
(0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((
0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0
) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0)
 && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) &&
 (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (
((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && ((
(int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((
int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int
*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*
)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)
(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(
0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0
))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0)
)[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))
[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[
0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0
] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0]
 &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(
void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void
)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)
((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)(
(0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((
0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0
) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0)
 && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) &&
 (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (
((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && ((
(int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((
int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int
*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*
)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)
(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(
0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0
))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0)
)[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))
[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[
0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0
] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0]
 &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));;
; return ; } };
5
←
Assuming 'db' is non-null→
6
←
Assuming the condition is false→
424	int fsz = ccv_max(1, (int)(4.0 * sigma + 1.0 - 1e-8))({ typeof (1) _a = (1); typeof ((int)(4.0 * sigma + 1.0 - 1e-8
)) _b = ((int)(4.0 * sigma + 1.0 - 1e-8)); (_a > _b) ? _a :
 _b; }) * 2 + 1;
7
←
Assuming '_a' is <= '_b'→
8
←
'?' condition is false→
425	int hfz = fsz / 2;
426	assert(hfz > 0)((void) sizeof ((hfz > 0) ? 1 : 0), __extension__ ({ if (hfz
 > 0) ; else __assert_fail ("hfz > 0", "ccv_basic.c", 426
, __extension__ __PRETTY_FUNCTION__); }));
9
←
Assuming 'hfz' is > 0→
10
←
Taking true branch→
427	unsigned char* buf = (unsigned char*)alloca(sizeof(double) * ccv_max(hfz * 2 + a->rows, (hfz * 2 + a->cols) * CCV_GET_CHANNEL(a->type)))__builtin_alloca (sizeof(double) * ({ typeof (hfz * 2 + a->
rows) _a = (hfz * 2 + a->rows); typeof ((hfz * 2 + a->cols
) * ((a->type) & 0xFFF)) _b = ((hfz * 2 + a->cols) *
 ((a->type) & 0xFFF)); (_a > _b) ? _a : _b; }));
11
←
Assuming '_a' is <= '_b'→
12
←
'?' condition is false→
428	unsigned char* filter = (unsigned char*)alloca(sizeof(double) * fsz)__builtin_alloca (sizeof(double) * fsz);
429	double tw = 0;
430	int i, j, k, ch = CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF);
431	assert(fsz > 0)((void) sizeof ((fsz > 0) ? 1 : 0), __extension__ ({ if (fsz
 > 0) ; else __assert_fail ("fsz > 0", "ccv_basic.c", 431
, __extension__ __PRETTY_FUNCTION__); }));
13
←
Assuming 'fsz' is > 0→
14
←
Taking true branch→
432	for (i = 0; i14.1
'i' is < 'fsz'
 < fsz; i++)
15
←
Loop condition is true.  Entering loop body→
16
←
Assuming 'i' is < 'fsz'→
17
←
Loop condition is true.  Entering loop body→
18
←
Assuming 'i' is >= 'fsz'→
433		tw += ((double*)filter)[i] = exp(-((i - hfz) * (i - hfz)) / (2.0 * sigma * sigma));
434	int no_8u_type = (db->type & CCV_8U) ? CCV_32S : db->type;
19
←
Assuming the condition is false→
20
←
'?' condition is false→
435	if (no_8u_type & CCV_32S)
21
←
Assuming the condition is true→
22
←
Taking true branch→
436	{
437		tw = 256.0 / tw;
438		for (i = 0; i < fsz; i++)
23
←
Loop condition is true.  Entering loop body→
24
←
Loop condition is true.  Entering loop body→
25
←
Loop condition is false. Execution continues on line 446→
439			((int*)filter)[i] = (int)(((double*)filter)[i] * tw + 0.5);
440	} else {
441		tw = 1.0 / tw;
442		for (i = 0; i < fsz; i++)
443			ccv_set_value(no_8u_type, filter, i, ((double*)filter)[i] * tw, 0)switch ((((no_8u_type)) & 0xFF000)) { case CCV_32S: ((int
*)(filter))[(i)] = (int)(((double*)filter)[i] * tw) >> 0
; break; case CCV_32F: ((float*)(filter))[(i)] = (float)((double
*)filter)[i] * tw; break; case CCV_64S: ((int64_t*)(filter))[
(i)] = (int64_t)(((double*)filter)[i] * tw) >> 0; break
; case CCV_64F: ((double*)(filter))[(i)] = (double)((double*)
filter)[i] * tw; break; default: ((unsigned char*)(filter))[(
i)] = ({ typeof (0) _a = (0); typeof (255) _b = (255); typeof
 ((int)(((double*)filter)[i] * tw) >> 0) _x = ((int)(((
double*)filter)[i] * tw) >> 0); (_x < _a) ? _a : ((_x
 > _b) ? _b : _x); }); };
444	}
445	/* horizontal */
446	unsigned char* a_ptr = a->data.u8;
447	unsigned char* b_ptr = db->data.u8;
448	assert(ch > 0)((void) sizeof ((ch > 0) ? 1 : 0), __extension__ ({ if (ch
 > 0) ; else __assert_fail ("ch > 0", "ccv_basic.c", 448
, __extension__ __PRETTY_FUNCTION__); }));
26
←
Assuming 'ch' is > 0→
27
←
Taking true branch→
449#define for_block(_for_type, _for_set_b, _for_get_b, _for_set_a, _for_get_a) \
450	for (i = 0; i < a->rows; i++) \
451	{ \
452		for (j = 0; j < hfz; j++) \
453			for (k = 0; k < ch; k++) \
454				_for_set_b(buf, j * ch + k, _for_get_a(a_ptr, k)); \
455		for (j = 0; j < a->cols * ch; j++) \
456			_for_set_b(buf, j + hfz * ch, _for_get_a(a_ptr, j)); \
457		for (j = a->cols; j < hfz + a->cols; j++) \
458			for (k = 0; k < ch; k++) \
459				_for_set_b(buf, j * ch + hfz * ch + k, _for_get_a(a_ptr, (a->cols - 1) * ch + k)); \
460		for (j = 0; j < a->cols * ch; j++) \
461		{ \
462			_for_type sum = 0; \
463			for (k = 0; k < fsz; k++) \
464				sum += _for_get_b(buf, k * ch + j) * _for_get_b(filter, k); \
465			_for_set_b(buf, j, sum, 8); \
466		} \
467		for (j = 0; j < a->cols * ch; j++) \
468			_for_set_a(b_ptr, j, _for_get_b(buf, j)); \
469		a_ptr += a->step; \
470		b_ptr += db->step; \
471	}
472	ccv_matrix_typeof_setter_getter(no_8u_type, ccv_matrix_setter, db->type, ccv_matrix_getter, a->type, for_block){ switch (((no_8u_type) & 0xFF000)) { case CCV_32S: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { { switch (
((a->type) & 0xFF000)) { case CCV_32S: { for_block(int
, _ccv_set_32s_value, _ccv_get_32s_value, _ccv_set_32s_value,
 _ccv_get_32s_value); break; } case CCV_32F: { for_block(int,
 _ccv_set_32s_value, _ccv_get_32s_value, _ccv_set_32s_value, _ccv_get_32f_value
); break; } case CCV_64S: { for_block(int, _ccv_set_32s_value
, _ccv_get_32s_value, _ccv_set_32s_value, _ccv_get_64s_value)
; break; } case CCV_64F: { for_block(int, _ccv_set_32s_value,
 _ccv_get_32s_value, _ccv_set_32s_value, _ccv_get_64f_value);
 break; } default: { for_block(int, _ccv_set_32s_value, _ccv_get_32s_value
, _ccv_set_32s_value, _ccv_get_8u_value); } } }; break; } case
 CCV_32F: { { switch (((a->type) & 0xFF000)) { case CCV_32S
: { for_block(int, _ccv_set_32s_value, _ccv_get_32s_value, _ccv_set_32f_value
, _ccv_get_32s_value); break; } case CCV_32F: { for_block(int
, _ccv_set_32s_value, _ccv_get_32s_value, _ccv_set_32f_value,
 _ccv_get_32f_value); break; } case CCV_64S: { for_block(int,
 _ccv_set_32s_value, _ccv_get_32s_value, _ccv_set_32f_value, _ccv_get_64s_value
); break; } case CCV_64F: { for_block(int, _ccv_set_32s_value
, _ccv_get_32s_value, _ccv_set_32f_value, _ccv_get_64f_value)
; break; } default: { for_block(int, _ccv_set_32s_value, _ccv_get_32s_value
, _ccv_set_32f_value, _ccv_get_8u_value); } } }; break; } case
 CCV_64S: { { switch (((a->type) & 0xFF000)) { case CCV_32S
: { for_block(int, _ccv_set_32s_value, _ccv_get_32s_value, _ccv_set_64s_value
, _ccv_get_32s_value); break; } case CCV_32F: { for_block(int
, _ccv_set_32s_value, _ccv_get_32s_value, _ccv_set_64s_value,
 _ccv_get_32f_value); break; } case CCV_64S: { for_block(int,
 _ccv_set_32s_value, _ccv_get_32s_value, _ccv_set_64s_value, _ccv_get_64s_value
); break; } case CCV_64F: { for_block(int, _ccv_set_32s_value
, _ccv_get_32s_value, _ccv_set_64s_value, _ccv_get_64f_value)
; break; } default: { for_block(int, _ccv_set_32s_value, _ccv_get_32s_value
, _ccv_set_64s_value, _ccv_get_8u_value); } } }; break; } case
 CCV_64F: { { switch (((a->type) & 0xFF000)) { case CCV_32S
: { for_block(int, _ccv_set_32s_value, _ccv_get_32s_value, _ccv_set_64f_value
, _ccv_get_32s_value); break; } case CCV_32F: { for_block(int
, _ccv_set_32s_value, _ccv_get_32s_value, _ccv_set_64f_value,
 _ccv_get_32f_value); break; } case CCV_64S: { for_block(int,
 _ccv_set_32s_value, _ccv_get_32s_value, _ccv_set_64f_value, _ccv_get_64s_value
); break; } case CCV_64F: { for_block(int, _ccv_set_32s_value
, _ccv_get_32s_value, _ccv_set_64f_value, _ccv_get_64f_value)
; break; } default: { for_block(int, _ccv_set_32s_value, _ccv_get_32s_value
, _ccv_set_64f_value, _ccv_get_8u_value); } } }; break; } default
: { { switch (((a->type) & 0xFF000)) { case CCV_32S: {
 for_block(int, _ccv_set_32s_value, _ccv_get_32s_value, _ccv_set_8u_value
, _ccv_get_32s_value); break; } case CCV_32F: { for_block(int
, _ccv_set_32s_value, _ccv_get_32s_value, _ccv_set_8u_value, _ccv_get_32f_value
); break; } case CCV_64S: { for_block(int, _ccv_set_32s_value
, _ccv_get_32s_value, _ccv_set_8u_value, _ccv_get_64s_value);
 break; } case CCV_64F: { for_block(int, _ccv_set_32s_value, _ccv_get_32s_value
, _ccv_set_8u_value, _ccv_get_64f_value); break; } default: {
 for_block(int, _ccv_set_32s_value, _ccv_get_32s_value, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; } } }; break; } case CCV_32F: { {
 switch (((db->type) & 0xFF000)) { case CCV_32S: { { switch
 (((a->type) & 0xFF000)) { case CCV_32S: { for_block(float
, _ccv_set_32f_value, _ccv_get_32f_value, _ccv_set_32s_value,
 _ccv_get_32s_value); break; } case CCV_32F: { for_block(float
, _ccv_set_32f_value, _ccv_get_32f_value, _ccv_set_32s_value,
 _ccv_get_32f_value); break; } case CCV_64S: { for_block(float
, _ccv_set_32f_value, _ccv_get_32f_value, _ccv_set_32s_value,
 _ccv_get_64s_value); break; } case CCV_64F: { for_block(float
, _ccv_set_32f_value, _ccv_get_32f_value, _ccv_set_32s_value,
 _ccv_get_64f_value); break; } default: { for_block(float, _ccv_set_32f_value
, _ccv_get_32f_value, _ccv_set_32s_value, _ccv_get_8u_value);
 } } }; break; } case CCV_32F: { { switch (((a->type) &
 0xFF000)) { case CCV_32S: { for_block(float, _ccv_set_32f_value
, _ccv_get_32f_value, _ccv_set_32f_value, _ccv_get_32s_value)
; break; } case CCV_32F: { for_block(float, _ccv_set_32f_value
, _ccv_get_32f_value, _ccv_set_32f_value, _ccv_get_32f_value)
; break; } case CCV_64S: { for_block(float, _ccv_set_32f_value
, _ccv_get_32f_value, _ccv_set_32f_value, _ccv_get_64s_value)
; break; } case CCV_64F: { for_block(float, _ccv_set_32f_value
, _ccv_get_32f_value, _ccv_set_32f_value, _ccv_get_64f_value)
; break; } default: { for_block(float, _ccv_set_32f_value, _ccv_get_32f_value
, _ccv_set_32f_value, _ccv_get_8u_value); } } }; break; } case
 CCV_64S: { { switch (((a->type) & 0xFF000)) { case CCV_32S
: { for_block(float, _ccv_set_32f_value, _ccv_get_32f_value, _ccv_set_64s_value
, _ccv_get_32s_value); break; } case CCV_32F: { for_block(float
, _ccv_set_32f_value, _ccv_get_32f_value, _ccv_set_64s_value,
 _ccv_get_32f_value); break; } case CCV_64S: { for_block(float
, _ccv_set_32f_value, _ccv_get_32f_value, _ccv_set_64s_value,
 _ccv_get_64s_value); break; } case CCV_64F: { for_block(float
, _ccv_set_32f_value, _ccv_get_32f_value, _ccv_set_64s_value,
 _ccv_get_64f_value); break; } default: { for_block(float, _ccv_set_32f_value
, _ccv_get_32f_value, _ccv_set_64s_value, _ccv_get_8u_value);
 } } }; break; } case CCV_64F: { { switch (((a->type) &
 0xFF000)) { case CCV_32S: { for_block(float, _ccv_set_32f_value
, _ccv_get_32f_value, _ccv_set_64f_value, _ccv_get_32s_value)
; break; } case CCV_32F: { for_block(float, _ccv_set_32f_value
, _ccv_get_32f_value, _ccv_set_64f_value, _ccv_get_32f_value)
; break; } case CCV_64S: { for_block(float, _ccv_set_32f_value
, _ccv_get_32f_value, _ccv_set_64f_value, _ccv_get_64s_value)
; break; } case CCV_64F: { for_block(float, _ccv_set_32f_value
, _ccv_get_32f_value, _ccv_set_64f_value, _ccv_get_64f_value)
; break; } default: { for_block(float, _ccv_set_32f_value, _ccv_get_32f_value
, _ccv_set_64f_value, _ccv_get_8u_value); } } }; break; } default
: { { switch (((a->type) & 0xFF000)) { case CCV_32S: {
 for_block(float, _ccv_set_32f_value, _ccv_get_32f_value, _ccv_set_8u_value
, _ccv_get_32s_value); break; } case CCV_32F: { for_block(float
, _ccv_set_32f_value, _ccv_get_32f_value, _ccv_set_8u_value, _ccv_get_32f_value
); break; } case CCV_64S: { for_block(float, _ccv_set_32f_value
, _ccv_get_32f_value, _ccv_set_8u_value, _ccv_get_64s_value);
 break; } case CCV_64F: { for_block(float, _ccv_set_32f_value
, _ccv_get_32f_value, _ccv_set_8u_value, _ccv_get_64f_value);
 break; } default: { for_block(float, _ccv_set_32f_value, _ccv_get_32f_value
, _ccv_set_8u_value, _ccv_get_8u_value); } } }; } } }; break;
 } case CCV_64S: { { switch (((db->type) & 0xFF000)) {
 case CCV_32S: { { switch (((a->type) & 0xFF000)) { case
 CCV_32S: { for_block(int64_t, _ccv_set_64s_value, _ccv_get_64s_value
, _ccv_set_32s_value, _ccv_get_32s_value); break; } case CCV_32F
: { for_block(int64_t, _ccv_set_64s_value, _ccv_get_64s_value
, _ccv_set_32s_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(int64_t, _ccv_set_64s_value, _ccv_get_64s_value
, _ccv_set_32s_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(int64_t, _ccv_set_64s_value, _ccv_get_64s_value
, _ccv_set_32s_value, _ccv_get_64f_value); break; } default: {
 for_block(int64_t, _ccv_set_64s_value, _ccv_get_64s_value, _ccv_set_32s_value
, _ccv_get_8u_value); } } }; break; } case CCV_32F: { { switch
 (((a->type) & 0xFF000)) { case CCV_32S: { for_block(int64_t
, _ccv_set_64s_value, _ccv_get_64s_value, _ccv_set_32f_value,
 _ccv_get_32s_value); break; } case CCV_32F: { for_block(int64_t
, _ccv_set_64s_value, _ccv_get_64s_value, _ccv_set_32f_value,
 _ccv_get_32f_value); break; } case CCV_64S: { for_block(int64_t
, _ccv_set_64s_value, _ccv_get_64s_value, _ccv_set_32f_value,
 _ccv_get_64s_value); break; } case CCV_64F: { for_block(int64_t
, _ccv_set_64s_value, _ccv_get_64s_value, _ccv_set_32f_value,
 _ccv_get_64f_value); break; } default: { for_block(int64_t, _ccv_set_64s_value
, _ccv_get_64s_value, _ccv_set_32f_value, _ccv_get_8u_value);
 } } }; break; } case CCV_64S: { { switch (((a->type) &
 0xFF000)) { case CCV_32S: { for_block(int64_t, _ccv_set_64s_value
, _ccv_get_64s_value, _ccv_set_64s_value, _ccv_get_32s_value)
; break; } case CCV_32F: { for_block(int64_t, _ccv_set_64s_value
, _ccv_get_64s_value, _ccv_set_64s_value, _ccv_get_32f_value)
; break; } case CCV_64S: { for_block(int64_t, _ccv_set_64s_value
, _ccv_get_64s_value, _ccv_set_64s_value, _ccv_get_64s_value)
; break; } case CCV_64F: { for_block(int64_t, _ccv_set_64s_value
, _ccv_get_64s_value, _ccv_set_64s_value, _ccv_get_64f_value)
; break; } default: { for_block(int64_t, _ccv_set_64s_value, _ccv_get_64s_value
, _ccv_set_64s_value, _ccv_get_8u_value); } } }; break; } case
 CCV_64F: { { switch (((a->type) & 0xFF000)) { case CCV_32S
: { for_block(int64_t, _ccv_set_64s_value, _ccv_get_64s_value
, _ccv_set_64f_value, _ccv_get_32s_value); break; } case CCV_32F
: { for_block(int64_t, _ccv_set_64s_value, _ccv_get_64s_value
, _ccv_set_64f_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(int64_t, _ccv_set_64s_value, _ccv_get_64s_value
, _ccv_set_64f_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(int64_t, _ccv_set_64s_value, _ccv_get_64s_value
, _ccv_set_64f_value, _ccv_get_64f_value); break; } default: {
 for_block(int64_t, _ccv_set_64s_value, _ccv_get_64s_value, _ccv_set_64f_value
, _ccv_get_8u_value); } } }; break; } default: { { switch (((
a->type) & 0xFF000)) { case CCV_32S: { for_block(int64_t
, _ccv_set_64s_value, _ccv_get_64s_value, _ccv_set_8u_value, _ccv_get_32s_value
); break; } case CCV_32F: { for_block(int64_t, _ccv_set_64s_value
, _ccv_get_64s_value, _ccv_set_8u_value, _ccv_get_32f_value);
 break; } case CCV_64S: { for_block(int64_t, _ccv_set_64s_value
, _ccv_get_64s_value, _ccv_set_8u_value, _ccv_get_64s_value);
 break; } case CCV_64F: { for_block(int64_t, _ccv_set_64s_value
, _ccv_get_64s_value, _ccv_set_8u_value, _ccv_get_64f_value);
 break; } default: { for_block(int64_t, _ccv_set_64s_value, _ccv_get_64s_value
, _ccv_set_8u_value, _ccv_get_8u_value); } } }; } } }; break;
 } case CCV_64F: { { switch (((db->type) & 0xFF000)) {
 case CCV_32S: { { switch (((a->type) & 0xFF000)) { case
 CCV_32S: { for_block(double, _ccv_set_64f_value, _ccv_get_64f_value
, _ccv_set_32s_value, _ccv_get_32s_value); break; } case CCV_32F
: { for_block(double, _ccv_set_64f_value, _ccv_get_64f_value,
 _ccv_set_32s_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(double, _ccv_set_64f_value, _ccv_get_64f_value,
 _ccv_set_32s_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(double, _ccv_set_64f_value, _ccv_get_64f_value,
 _ccv_set_32s_value, _ccv_get_64f_value); break; } default: {
 for_block(double, _ccv_set_64f_value, _ccv_get_64f_value, _ccv_set_32s_value
, _ccv_get_8u_value); } } }; break; } case CCV_32F: { { switch
 (((a->type) & 0xFF000)) { case CCV_32S: { for_block(double
, _ccv_set_64f_value, _ccv_get_64f_value, _ccv_set_32f_value,
 _ccv_get_32s_value); break; } case CCV_32F: { for_block(double
, _ccv_set_64f_value, _ccv_get_64f_value, _ccv_set_32f_value,
 _ccv_get_32f_value); break; } case CCV_64S: { for_block(double
, _ccv_set_64f_value, _ccv_get_64f_value, _ccv_set_32f_value,
 _ccv_get_64s_value); break; } case CCV_64F: { for_block(double
, _ccv_set_64f_value, _ccv_get_64f_value, _ccv_set_32f_value,
 _ccv_get_64f_value); break; } default: { for_block(double, _ccv_set_64f_value
, _ccv_get_64f_value, _ccv_set_32f_value, _ccv_get_8u_value);
 } } }; break; } case CCV_64S: { { switch (((a->type) &
 0xFF000)) { case CCV_32S: { for_block(double, _ccv_set_64f_value
, _ccv_get_64f_value, _ccv_set_64s_value, _ccv_get_32s_value)
; break; } case CCV_32F: { for_block(double, _ccv_set_64f_value
, _ccv_get_64f_value, _ccv_set_64s_value, _ccv_get_32f_value)
; break; } case CCV_64S: { for_block(double, _ccv_set_64f_value
, _ccv_get_64f_value, _ccv_set_64s_value, _ccv_get_64s_value)
; break; } case CCV_64F: { for_block(double, _ccv_set_64f_value
, _ccv_get_64f_value, _ccv_set_64s_value, _ccv_get_64f_value)
; break; } default: { for_block(double, _ccv_set_64f_value, _ccv_get_64f_value
, _ccv_set_64s_value, _ccv_get_8u_value); } } }; break; } case
 CCV_64F: { { switch (((a->type) & 0xFF000)) { case CCV_32S
: { for_block(double, _ccv_set_64f_value, _ccv_get_64f_value,
 _ccv_set_64f_value, _ccv_get_32s_value); break; } case CCV_32F
: { for_block(double, _ccv_set_64f_value, _ccv_get_64f_value,
 _ccv_set_64f_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(double, _ccv_set_64f_value, _ccv_get_64f_value,
 _ccv_set_64f_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(double, _ccv_set_64f_value, _ccv_get_64f_value,
 _ccv_set_64f_value, _ccv_get_64f_value); break; } default: {
 for_block(double, _ccv_set_64f_value, _ccv_get_64f_value, _ccv_set_64f_value
, _ccv_get_8u_value); } } }; break; } default: { { switch (((
a->type) & 0xFF000)) { case CCV_32S: { for_block(double
, _ccv_set_64f_value, _ccv_get_64f_value, _ccv_set_8u_value, _ccv_get_32s_value
); break; } case CCV_32F: { for_block(double, _ccv_set_64f_value
, _ccv_get_64f_value, _ccv_set_8u_value, _ccv_get_32f_value);
 break; } case CCV_64S: { for_block(double, _ccv_set_64f_value
, _ccv_get_64f_value, _ccv_set_8u_value, _ccv_get_64s_value);
 break; } case CCV_64F: { for_block(double, _ccv_set_64f_value
, _ccv_get_64f_value, _ccv_set_8u_value, _ccv_get_64f_value);
 break; } default: { for_block(double, _ccv_set_64f_value, _ccv_get_64f_value
, _ccv_set_8u_value, _ccv_get_8u_value); } } }; } } }; break;
 } default: { { switch (((db->type) & 0xFF000)) { case
 CCV_32S: { { switch (((a->type) & 0xFF000)) { case CCV_32S
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_32s_value, _ccv_get_32s_value); break; } case CCV_32F
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_32s_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_32s_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_32s_value, _ccv_get_64f_value); break; } default: {
 for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_32s_value, _ccv_get_8u_value); } } }; break; } case
 CCV_32F: { { switch (((a->type) & 0xFF000)) { case CCV_32S
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_32f_value, _ccv_get_32s_value); break; } case CCV_32F
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_32f_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_32f_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_32f_value, _ccv_get_64f_value); break; } default: {
 for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_32f_value, _ccv_get_8u_value); } } }; break; } case
 CCV_64S: { { switch (((a->type) & 0xFF000)) { case CCV_32S
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_64s_value, _ccv_get_32s_value); break; } case CCV_32F
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_64s_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_64s_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_64s_value, _ccv_get_64f_value); break; } default: {
 for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_64s_value, _ccv_get_8u_value); } } }; break; } case
 CCV_64F: { { switch (((a->type) & 0xFF000)) { case CCV_32S
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_64f_value, _ccv_get_32s_value); break; } case CCV_32F
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_64f_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_64f_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_64f_value, _ccv_get_64f_value); break; } default: {
 for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_64f_value, _ccv_get_8u_value); } } }; break; } default
: { { switch (((a->type) & 0xFF000)) { case CCV_32S: {
 for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_8u_value, _ccv_get_32s_value); break; } case CCV_32F
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_8u_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_8u_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_8u_value, _ccv_get_64f_value); break; } default: {
 for_block(unsigned char, _ccv_set_8u_value, _ccv_get_8u_value
, _ccv_set_8u_value, _ccv_get_8u_value); } } }; } } }; } } };
28
←
Control jumps to the 'default' case at line 472→
29
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Control jumps to the 'default' case at line 472→
30
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Control jumps to 'case CCV_32S:'  at line 472→
31
←
Assuming 'i' is < field 'rows'→
32
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Loop condition is true.  Entering loop body→
33
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Loop condition is true.  Entering loop body→
34
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Loop condition is true.  Entering loop body→
35
←
Assuming '_x' is >= '_a'→
36
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'?' condition is false→
37
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Assuming '_x' is <= '_b'→
38
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'?' condition is false→
39
←
Assuming 'k' is >= 'ch'→
40
←
Loop condition is false. Execution continues on line 472→
41
←
Loop condition is false. Execution continues on line 472→
42
←
Assuming the condition is true→
43
←
Loop condition is true.  Entering loop body→
44
←
'?' condition is false→
45
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'?' condition is false→
46
←
Assuming the condition is false→
47
←
Loop condition is false. Execution continues on line 472→
48
←
Loop condition is true.  Entering loop body→
49
←
Loop condition is true.  Entering loop body→
50
←
'?' condition is false→
51
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'?' condition is false→
52
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Loop condition is false. Execution continues on line 472→
53
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Loop condition is false. Execution continues on line 472→
54
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Loop condition is true.  Entering loop body→
55
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Loop condition is true.  Entering loop body→
56
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The value 1 is assigned to 'k'→
57
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Loop condition is true.  Entering loop body→
58
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The right operand of '*' is a garbage value
473#undef for_block
474	/* vertical */
475	b_ptr = db->data.u8;
476#define for_block(_for_type, _for_set_b, _for_get_b, _for_set_a, _for_get_a) \
477	for (i = 0; i < a->cols * ch; i++) \
478	{ \
479		for (j = 0; j < hfz; j++) \
480			_for_set_b(buf, j, _for_get_a(b_ptr, i)); \
481		for (j = 0; j < a->rows; j++) \
482			_for_set_b(buf, j + hfz, _for_get_a(b_ptr + j * db->step, i)); \
483		for (j = a->rows; j < hfz + a->rows; j++) \
484			_for_set_b(buf, j + hfz, _for_get_a(b_ptr + (a->rows - 1) * db->step, i)); \
485		for (j = 0; j < a->rows; j++) \
486		{ \
487			_for_type sum = 0; \
488			for (k = 0; k < fsz; k++) \
489				sum += _for_get_b(buf, k + j) * _for_get_b(filter, k); \
490			_for_set_b(buf, j, sum, 8); \
491		} \
492		for (j = 0; j < a->rows; j++) \
493			_for_set_a(b_ptr + j * db->step, i, _for_get_b(buf, j)); \
494	}
495	ccv_matrix_typeof_setter_getter(no_8u_type, ccv_matrix_setter_getter, db->type, for_block){ switch (((no_8u_type) & 0xFF000)) { case CCV_32S: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
int, _ccv_set_32s_value, _ccv_get_32s_value, _ccv_set_32s_value
, _ccv_get_32s_value); break; } case CCV_32F: { for_block(int
, _ccv_set_32s_value, _ccv_get_32s_value, _ccv_set_32f_value,
 _ccv_get_32f_value); break; } case CCV_64S: { for_block(int,
 _ccv_set_32s_value, _ccv_get_32s_value, _ccv_set_64s_value, _ccv_get_64s_value
); break; } case CCV_64F: { for_block(int, _ccv_set_32s_value
, _ccv_get_32s_value, _ccv_set_64f_value, _ccv_get_64f_value)
; break; } default: { for_block(int, _ccv_set_32s_value, _ccv_get_32s_value
, _ccv_set_8u_value, _ccv_get_8u_value); } } }; break; } case
 CCV_32F: { { switch (((db->type) & 0xFF000)) { case CCV_32S
: { for_block(float, _ccv_set_32f_value, _ccv_get_32f_value, _ccv_set_32s_value
, _ccv_get_32s_value); break; } case CCV_32F: { for_block(float
, _ccv_set_32f_value, _ccv_get_32f_value, _ccv_set_32f_value,
 _ccv_get_32f_value); break; } case CCV_64S: { for_block(float
, _ccv_set_32f_value, _ccv_get_32f_value, _ccv_set_64s_value,
 _ccv_get_64s_value); break; } case CCV_64F: { for_block(float
, _ccv_set_32f_value, _ccv_get_32f_value, _ccv_set_64f_value,
 _ccv_get_64f_value); break; } default: { for_block(float, _ccv_set_32f_value
, _ccv_get_32f_value, _ccv_set_8u_value, _ccv_get_8u_value); }
 } }; break; } case CCV_64S: { { switch (((db->type) &
 0xFF000)) { case CCV_32S: { for_block(int64_t, _ccv_set_64s_value
, _ccv_get_64s_value, _ccv_set_32s_value, _ccv_get_32s_value)
; break; } case CCV_32F: { for_block(int64_t, _ccv_set_64s_value
, _ccv_get_64s_value, _ccv_set_32f_value, _ccv_get_32f_value)
; break; } case CCV_64S: { for_block(int64_t, _ccv_set_64s_value
, _ccv_get_64s_value, _ccv_set_64s_value, _ccv_get_64s_value)
; break; } case CCV_64F: { for_block(int64_t, _ccv_set_64s_value
, _ccv_get_64s_value, _ccv_set_64f_value, _ccv_get_64f_value)
; break; } default: { for_block(int64_t, _ccv_set_64s_value, _ccv_get_64s_value
, _ccv_set_8u_value, _ccv_get_8u_value); } } }; break; } case
 CCV_64F: { { switch (((db->type) & 0xFF000)) { case CCV_32S
: { for_block(double, _ccv_set_64f_value, _ccv_get_64f_value,
 _ccv_set_32s_value, _ccv_get_32s_value); break; } case CCV_32F
: { for_block(double, _ccv_set_64f_value, _ccv_get_64f_value,
 _ccv_set_32f_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(double, _ccv_set_64f_value, _ccv_get_64f_value,
 _ccv_set_64s_value, _ccv_get_64s_value); break; } case CCV_64F
: { for_block(double, _ccv_set_64f_value, _ccv_get_64f_value,
 _ccv_set_64f_value, _ccv_get_64f_value); break; } default: {
 for_block(double, _ccv_set_64f_value, _ccv_get_64f_value, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } default: { { switch (((
db->type) & 0xFF000)) { case CCV_32S: { for_block(unsigned
 char, _ccv_set_8u_value, _ccv_get_8u_value, _ccv_set_32s_value
, _ccv_get_32s_value); break; } case CCV_32F: { for_block(unsigned
 char, _ccv_set_8u_value, _ccv_get_8u_value, _ccv_set_32f_value
, _ccv_get_32f_value); break; } case CCV_64S: { for_block(unsigned
 char, _ccv_set_8u_value, _ccv_get_8u_value, _ccv_set_64s_value
, _ccv_get_64s_value); break; } case CCV_64F: { for_block(unsigned
 char, _ccv_set_8u_value, _ccv_get_8u_value, _ccv_set_64f_value
, _ccv_get_64f_value); break; } default: { for_block(unsigned
 char, _ccv_set_8u_value, _ccv_get_8u_value, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; } } };
496#undef for_block
497}
498 
499void ccv_erode(ccv_dense_matrix_t* a, ccv_dense_matrix_t** b, int type, int fsz)
500{
501	ccv_declare_derived_signature(sig, a->sig != 0, ccv_sign_with_format(64, "ccv_erode(%d)", fsz), a->sig, CCV_EOF_SIGN)char _ccv_identifier_501[(64)]; memset(_ccv_identifier_501, 0
, (64)); snprintf(_ccv_identifier_501, (64), ("ccv_erode(%d)"
), fsz); size_t _ccv_string_size_501 = (64);; uint64_t sig = (
a->sig != 0) ? ccv_cache_generate_signature(_ccv_identifier_501
, _ccv_string_size_501, a->sig, ((uint64_t)0)) : 0;;
502	type = (type == 0) ? CCV_GET_DATA_TYPE(a->type)((a->type) & 0xFF000) | CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF) : CCV_GET_DATA_TYPE(type)((type) & 0xFF000) | CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF);
503	ccv_dense_matrix_t* db = *b = ccv_dense_matrix_renew(*b, a->rows, a->cols, CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF) | CCV_ALL_DATA_TYPE(CCV_8U | CCV_32S | CCV_32F | CCV_64S | CCV_64F | CCV_16F | CCV_QX
), type, sig);
504	ccv_object_return_if_cached(, db){ if ((!(db) || (((int*)(db))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE))) { (void)((db) && (((int*)(db))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(
void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void
)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)
((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)(
(0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((
0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0
) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0)
 && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) &&
 (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (
((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && ((
(int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((
int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int
*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*
)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)
(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(
0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0
))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0)
)[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))
[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[
0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0
] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0]
 &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(
void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void
)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)
((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)(
(0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((
0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0
) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0)
 && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) &&
 (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (
((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && ((
(int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((
int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int
*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*
)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)
(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(
0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0
))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0)
)[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))
[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[
0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0
] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0]
 &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));;
; return ; } };
505	int i, j, k, c, ch = CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF);
506	unsigned char* buf = (unsigned char*)alloca(sizeof(double) * ch * (fsz + ccv_max(a->rows, a->cols)))__builtin_alloca (sizeof(double) * ch * (fsz + ({ typeof (a->
rows) _a = (a->rows); typeof (a->cols) _b = (a->cols
); (_a > _b) ? _a : _b; })));
507	const int hfz = fsz / 2;
508	unsigned char* a_ptr = a->data.u8;
509	unsigned char* b_ptr = db->data.u8;
510#define for_block(_for_get, _for_type_b, _for_set_b, _for_get_b) \
511	for (i = 0; i < a->rows; i++) \
512	{ \
513		for (j = 0; j < hfz; j++) \
514			for (k = 0; k < ch; k++) \
515				_for_set_b(buf, j * ch + k, _for_get(a_ptr, k)); \
516		for (j = 0; j < a->cols; j++) \
517			for (k = 0; k < ch; k++) \
518				_for_set_b(buf, (j + hfz) * ch + k, _for_get(a_ptr, j * ch + k)); \
519		for (j = a->cols; j < a->cols + hfz; j++) \
520			for (k = 0; k < ch; k++) \
521				_for_set_b(buf, (j + hfz) * ch + k, _for_get(a_ptr, (a->cols - 1) * ch + k)); \
522		for (j = 0; j < a->cols; j++) \
523		{ \
524			for (c = 0; c < ch; c++) \
525			{ \
526				_for_type_b minimum = _for_get_b(buf, j * ch + c); \
527				for (k = 1; k < fsz; k++) \
528					minimum = ccv_min(minimum, _for_get_b(buf, (j + k) * ch + c))({ typeof (minimum) _a = (minimum); typeof (_for_get_b(buf, (
j + k) * ch + c)) _b = (_for_get_b(buf, (j + k) * ch + c)); (
_a < _b) ? _a : _b; }); \
529				_for_set_b(b_ptr, j * ch + c, minimum); \
530			} \
531		} \
532		a_ptr += a->step; \
533		b_ptr += db->step; \
534	} \
535	b_ptr = db->data.u8; \
536	for (i = 0; i < a->cols; i++) \
537	{ \
538		for (j = 0; j < hfz; j++) \
539			for (k = 0; k < ch; k++) \
540				_for_set_b(buf, j * ch + k, _for_get_b(b_ptr, i * ch + k)); \
541		for (j = 0; j < a->rows; j++) \
542			for (k = 0; k < ch; k++) \
543				_for_set_b(buf, (j + hfz) * ch + k, _for_get_b(b_ptr + j * db->step, i * ch + k)); \
544		for (j = a->rows; j < a->rows + hfz; j++) \
545			for (k = 0; k < ch; k++) \
546				_for_set_b(buf, (j + hfz) * ch + k, _for_get_b(b_ptr + (a->rows - 1) * db->step, i * ch + k)); \
547		for (j = 0; j < a->rows; j++) \
548		{ \
549			for (c = 0; c < ch; c++) \
550			{ \
551				_for_type_b minimum = _for_get_b(buf, j * ch + c); \
552				for (k = 1; k < fsz; k++) \
553					minimum = ccv_min(minimum, _for_get_b(buf, (j + k) * ch + c))({ typeof (minimum) _a = (minimum); typeof (_for_get_b(buf, (
j + k) * ch + c)) _b = (_for_get_b(buf, (j + k) * ch + c)); (
_a < _b) ? _a : _b; }); \
554				_for_set_b(b_ptr + j * db->step, i * ch + c, minimum); \
555			} \
556		} \
557	}
558	ccv_matrix_getter(a->type, ccv_matrix_typeof_setter_getter, db->type, for_block){ switch (((a->type) & 0xFF000)) { case CCV_32S: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_32s_value, int, _ccv_set_32s_value, _ccv_get_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_32s_value, float
, _ccv_set_32f_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(_ccv_get_32s_value, int64_t, _ccv_set_64s_value
, _ccv_get_64s_value); break; } case CCV_64F: { for_block(_ccv_get_32s_value
, double, _ccv_set_64f_value, _ccv_get_64f_value); break; } default
: { for_block(_ccv_get_32s_value, unsigned char, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } case CCV_32F: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_32f_value, int, _ccv_set_32s_value, _ccv_get_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_32f_value, float
, _ccv_set_32f_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(_ccv_get_32f_value, int64_t, _ccv_set_64s_value
, _ccv_get_64s_value); break; } case CCV_64F: { for_block(_ccv_get_32f_value
, double, _ccv_set_64f_value, _ccv_get_64f_value); break; } default
: { for_block(_ccv_get_32f_value, unsigned char, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } case CCV_64S: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_64s_value, int, _ccv_set_32s_value, _ccv_get_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_64s_value, float
, _ccv_set_32f_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(_ccv_get_64s_value, int64_t, _ccv_set_64s_value
, _ccv_get_64s_value); break; } case CCV_64F: { for_block(_ccv_get_64s_value
, double, _ccv_set_64f_value, _ccv_get_64f_value); break; } default
: { for_block(_ccv_get_64s_value, unsigned char, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } case CCV_64F: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_64f_value, int, _ccv_set_32s_value, _ccv_get_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_64f_value, float
, _ccv_set_32f_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(_ccv_get_64f_value, int64_t, _ccv_set_64s_value
, _ccv_get_64s_value); break; } case CCV_64F: { for_block(_ccv_get_64f_value
, double, _ccv_set_64f_value, _ccv_get_64f_value); break; } default
: { for_block(_ccv_get_64f_value, unsigned char, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } default: { { switch (((
db->type) & 0xFF000)) { case CCV_32S: { for_block(_ccv_get_8u_value
, int, _ccv_set_32s_value, _ccv_get_32s_value); break; } case
 CCV_32F: { for_block(_ccv_get_8u_value, float, _ccv_set_32f_value
, _ccv_get_32f_value); break; } case CCV_64S: { for_block(_ccv_get_8u_value
, int64_t, _ccv_set_64s_value, _ccv_get_64s_value); break; } case
 CCV_64F: { for_block(_ccv_get_8u_value, double, _ccv_set_64f_value
, _ccv_get_64f_value); break; } default: { for_block(_ccv_get_8u_value
, unsigned char, _ccv_set_8u_value, _ccv_get_8u_value); } } }
; } } };
559#undef for_block
560}
561 
562void ccv_dilate(ccv_dense_matrix_t* a, ccv_dense_matrix_t** b, int type, int fsz)
563{
564	ccv_declare_derived_signature(sig, a->sig != 0, ccv_sign_with_format(64, "ccv_dilate(%d)", fsz), a->sig, CCV_EOF_SIGN)char _ccv_identifier_564[(64)]; memset(_ccv_identifier_564, 0
, (64)); snprintf(_ccv_identifier_564, (64), ("ccv_dilate(%d)"
), fsz); size_t _ccv_string_size_564 = (64);; uint64_t sig = (
a->sig != 0) ? ccv_cache_generate_signature(_ccv_identifier_564
, _ccv_string_size_564, a->sig, ((uint64_t)0)) : 0;;
565	type = (type == 0) ? CCV_GET_DATA_TYPE(a->type)((a->type) & 0xFF000) | CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF) : CCV_GET_DATA_TYPE(type)((type) & 0xFF000) | CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF);
566	ccv_dense_matrix_t* db = *b = ccv_dense_matrix_renew(*b, a->rows, a->cols, CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF) | CCV_ALL_DATA_TYPE(CCV_8U | CCV_32S | CCV_32F | CCV_64S | CCV_64F | CCV_16F | CCV_QX
), type, sig);
567	ccv_object_return_if_cached(, db){ if ((!(db) || (((int*)(db))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE
)) && (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) &&
 (!(0) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0
) || (((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (
((int*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int
*)(0))[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0)
)[0] & CCV_GARBAGE)) && (!(0) || (((int*)(0))[0] &
 CCV_GARBAGE))) { (void)((db) && (((int*)(db))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(
void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void
)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)
((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)(
(0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((
0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0
) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0)
 && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) &&
 (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (
((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && ((
(int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((
int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int
*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*
)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)
(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(
0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0
))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0)
)[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))
[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[
0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0
] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0]
 &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(
void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void
)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)
((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)(
(0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((
0) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0
) && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0)
 && (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) &&
 (((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (
((int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && ((
(int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((
int*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int
*)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*
)(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)
(0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(
0))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0
))[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0)
)[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))
[0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[
0] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0
] &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0]
 &= ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &=
 ~CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~
CCV_GARBAGE));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE
));(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE)
);(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE))
;(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));
(void)((0) && (((int*)(0))[0] &= ~CCV_GARBAGE));;
; return ; } };
568	int i, j, k, c, ch = CCV_GET_CHANNEL(a->type)((a->type) & 0xFFF);
569	unsigned char* buf = (unsigned char*)alloca(sizeof(double) * ch * (fsz + ccv_max(a->rows, a->cols)))__builtin_alloca (sizeof(double) * ch * (fsz + ({ typeof (a->
rows) _a = (a->rows); typeof (a->cols) _b = (a->cols
); (_a > _b) ? _a : _b; })));
570	const int hfz = fsz / 2;
571	unsigned char* a_ptr = a->data.u8;
572	unsigned char* b_ptr = db->data.u8;
573#define for_block(_for_get, _for_type_b, _for_set_b, _for_get_b) \
574	for (i = 0; i < a->rows; i++) \
575	{ \
576		for (j = 0; j < hfz; j++) \
577			for (k = 0; k < ch; k++) \
578				_for_set_b(buf, j * ch + k, _for_get(a_ptr, k)); \
579		for (j = 0; j < a->cols; j++) \
580			for (k = 0; k < ch; k++) \
581				_for_set_b(buf, (j + hfz) * ch + k, _for_get(a_ptr, j * ch + k)); \
582		for (j = a->cols; j < a->cols + hfz; j++) \
583			for (k = 0; k < ch; k++) \
584				_for_set_b(buf, (j + hfz) * ch + k, _for_get(a_ptr, (a->cols - 1) * ch + k)); \
585		for (j = 0; j < a->cols; j++) \
586		{ \
587			for (c = 0; c < ch; c++) \
588			{ \
589				_for_type_b maximum = _for_get_b(buf, j * ch + c); \
590				for (k = 1; k < fsz; k++) \
591					maximum = ccv_max(maximum, _for_get_b(buf, (j + k) * ch + c))({ typeof (maximum) _a = (maximum); typeof (_for_get_b(buf, (
j + k) * ch + c)) _b = (_for_get_b(buf, (j + k) * ch + c)); (
_a > _b) ? _a : _b; }); \
592				_for_set_b(b_ptr, j * ch + c, maximum); \
593			} \
594		} \
595		a_ptr += a->step; \
596		b_ptr += db->step; \
597	} \
598	b_ptr = db->data.u8; \
599	for (i = 0; i < a->cols; i++) \
600	{ \
601		for (j = 0; j < hfz; j++) \
602			for (k = 0; k < ch; k++) \
603				_for_set_b(buf, j * ch + k, _for_get_b(b_ptr, i * ch + k)); \
604		for (j = 0; j < a->rows; j++) \
605			for (k = 0; k < ch; k++) \
606				_for_set_b(buf, (j + hfz) * ch + k, _for_get_b(b_ptr + j * db->step, i * ch + k)); \
607		for (j = a->rows; j < a->rows + hfz; j++) \
608			for (k = 0; k < ch; k++) \
609				_for_set_b(buf, (j + hfz) * ch + k, _for_get_b(b_ptr + (a->rows - 1) * db->step, i * ch + k)); \
610		for (j = 0; j < a->rows; j++) \
611		{ \
612			for (c = 0; c < ch; c++) \
613			{ \
614				_for_type_b maximum = _for_get_b(buf, j * ch + c); \
615				for (k = 1; k < fsz; k++) \
616					maximum = ccv_max(maximum, _for_get_b(buf, (j + k) * ch + c))({ typeof (maximum) _a = (maximum); typeof (_for_get_b(buf, (
j + k) * ch + c)) _b = (_for_get_b(buf, (j + k) * ch + c)); (
_a > _b) ? _a : _b; }); \
617				_for_set_b(b_ptr + j * db->step, i * ch + c, maximum); \
618			} \
619		} \
620	}
621	ccv_matrix_getter(a->type, ccv_matrix_typeof_setter_getter, db->type, for_block){ switch (((a->type) & 0xFF000)) { case CCV_32S: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_32s_value, int, _ccv_set_32s_value, _ccv_get_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_32s_value, float
, _ccv_set_32f_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(_ccv_get_32s_value, int64_t, _ccv_set_64s_value
, _ccv_get_64s_value); break; } case CCV_64F: { for_block(_ccv_get_32s_value
, double, _ccv_set_64f_value, _ccv_get_64f_value); break; } default
: { for_block(_ccv_get_32s_value, unsigned char, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } case CCV_32F: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_32f_value, int, _ccv_set_32s_value, _ccv_get_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_32f_value, float
, _ccv_set_32f_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(_ccv_get_32f_value, int64_t, _ccv_set_64s_value
, _ccv_get_64s_value); break; } case CCV_64F: { for_block(_ccv_get_32f_value
, double, _ccv_set_64f_value, _ccv_get_64f_value); break; } default
: { for_block(_ccv_get_32f_value, unsigned char, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } case CCV_64S: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_64s_value, int, _ccv_set_32s_value, _ccv_get_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_64s_value, float
, _ccv_set_32f_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(_ccv_get_64s_value, int64_t, _ccv_set_64s_value
, _ccv_get_64s_value); break; } case CCV_64F: { for_block(_ccv_get_64s_value
, double, _ccv_set_64f_value, _ccv_get_64f_value); break; } default
: { for_block(_ccv_get_64s_value, unsigned char, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } case CCV_64F: { { switch
 (((db->type) & 0xFF000)) { case CCV_32S: { for_block(
_ccv_get_64f_value, int, _ccv_set_32s_value, _ccv_get_32s_value
); break; } case CCV_32F: { for_block(_ccv_get_64f_value, float
, _ccv_set_32f_value, _ccv_get_32f_value); break; } case CCV_64S
: { for_block(_ccv_get_64f_value, int64_t, _ccv_set_64s_value
, _ccv_get_64s_value); break; } case CCV_64F: { for_block(_ccv_get_64f_value
, double, _ccv_set_64f_value, _ccv_get_64f_value); break; } default
: { for_block(_ccv_get_64f_value, unsigned char, _ccv_set_8u_value
, _ccv_get_8u_value); } } }; break; } default: { { switch (((
db->type) & 0xFF000)) { case CCV_32S: { for_block(_ccv_get_8u_value
, int, _ccv_set_32s_value, _ccv_get_32s_value); break; } case
 CCV_32F: { for_block(_ccv_get_8u_value, float, _ccv_set_32f_value
, _ccv_get_32f_value); break; } case CCV_64S: { for_block(_ccv_get_8u_value
, int64_t, _ccv_set_64s_value, _ccv_get_64s_value); break; } case
 CCV_64F: { for_block(_ccv_get_8u_value, double, _ccv_set_64f_value
, _ccv_get_64f_value); break; } default: { for_block(_ccv_get_8u_value
, unsigned char, _ccv_set_8u_value, _ccv_get_8u_value); } } }
; } } };
622#undef for_block
623}