diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_include/math_support.h')
| -rw-r--r-- | drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_include/math_support.h | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_include/math_support.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_include/math_support.h deleted file mode 100644 index 6436dae0007e..000000000000 --- a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_include/math_support.h +++ /dev/null @@ -1,223 +0,0 @@ -/* - * Support for Intel Camera Imaging ISP subsystem. - * Copyright (c) 2015, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - */ - -#ifndef __MATH_SUPPORT_H -#define __MATH_SUPPORT_H - -#if defined(__KERNEL__) -#include <linux/kernel.h> /* Override the definition of max/min from linux kernel*/ -#endif /*__KERNEL__*/ - -#if defined(_MSC_VER) -#include <stdlib.h> /* Override the definition of max/min from stdlib.h*/ -#endif /* _MSC_VER */ - -/* in case we have min/max/MIN/MAX macro's undefine them */ -#ifdef min -#undef min -#endif -#ifdef max -#undef max -#endif -#ifdef MIN /* also defined in include/hrt/numeric.h from SDK */ -#undef MIN -#endif -#ifdef MAX -#undef MAX -#endif -#ifdef ABS -#undef ABS -#endif - -#define IS_ODD(a) ((a) & 0x1) -#define IS_EVEN(a) (!IS_ODD(a)) - -/* force a value to a lower even value */ -#define EVEN_FLOOR(x) ((x) & ~1) - -#ifdef ISP2401 -/* If the number is odd, find the next even number */ -#define EVEN_CEIL(x) ((IS_ODD(x)) ? ((x) + 1) : (x)) - -#endif -/* A => B */ -#define IMPLIES(a, b) (!(a) || (b)) - -#define ABS(a) ((a) >= 0 ? (a) : -(a)) - -/* for preprocessor and array sizing use MIN and MAX - otherwise use min and max */ -#define MAX(a, b) (((a) > (b)) ? (a) : (b)) -#define MIN(a, b) (((a) < (b)) ? (a) : (b)) -#ifdef ISP2401 -#define ROUND_DIV(a, b) (((b) != 0) ? ((a) + ((b) >> 1)) / (b) : 0) -#endif -#define CEIL_DIV(a, b) (((b) != 0) ? ((a) + (b) - 1) / (b) : 0) -#define CEIL_MUL(a, b) (CEIL_DIV(a, b) * (b)) -#define CEIL_MUL2(a, b) (((a) + (b) - 1) & ~((b) - 1)) -#define CEIL_SHIFT(a, b) (((a) + (1 << (b)) - 1)>>(b)) -#define CEIL_SHIFT_MUL(a, b) (CEIL_SHIFT(a, b) << (b)) -#ifdef ISP2401 -#define ROUND_HALF_DOWN_DIV(a, b) (((b) != 0) ? ((a) + (b / 2) - 1) / (b) : 0) -#define ROUND_HALF_DOWN_MUL(a, b) (ROUND_HALF_DOWN_DIV(a, b) * (b)) -#endif - - -/*To Find next power of 2 number from x */ -#define bit2(x) ((x) | ((x) >> 1)) -#define bit4(x) (bit2(x) | (bit2(x) >> 2)) -#define bit8(x) (bit4(x) | (bit4(x) >> 4)) -#define bit16(x) (bit8(x) | (bit8(x) >> 8)) -#define bit32(x) (bit16(x) | (bit16(x) >> 16)) -#define NEXT_POWER_OF_2(x) (bit32(x-1) + 1) - - -/* min and max should not be macros as they will evaluate their arguments twice. - if you really need a macro (e.g. for CPP or for initializing an array) - use MIN() and MAX(), otherwise use min() and max(). - - -*/ - -#if !defined(PIPE_GENERATION) - -#ifndef INLINE_MATH_SUPPORT_UTILS -/* -This macro versions are added back as we are mixing types in usage of inline. -This causes corner cases of calculations to be incorrect due to conversions -between signed and unsigned variables or overflows. -Before the addition of the inline functions, max, min and ceil_div were macros -and therefore adding them back. - -Leaving out the other math utility functions as they are newly added -*/ - -#define max(a, b) (MAX(a, b)) -#define min(a, b) (MIN(a, b)) -#define ceil_div(a, b) (CEIL_DIV(a, b)) - -#else /* !defined(INLINE_MATH_SUPPORT_UTILS) */ - -static inline int max(int a, int b) -{ - return MAX(a, b); -} - -static inline int min(int a, int b) -{ - return MIN(a, b); -} - -static inline unsigned int ceil_div(unsigned int a, unsigned int b) -{ - return CEIL_DIV(a, b); -} -#endif /* !defined(INLINE_MATH_SUPPORT_UTILS) */ - -static inline unsigned int umax(unsigned int a, unsigned int b) -{ - return MAX(a, b); -} - -static inline unsigned int umin(unsigned int a, unsigned int b) -{ - return MIN(a, b); -} - - -static inline unsigned int ceil_mul(unsigned int a, unsigned int b) -{ - return CEIL_MUL(a, b); -} - -static inline unsigned int ceil_mul2(unsigned int a, unsigned int b) -{ - return CEIL_MUL2(a, b); -} - -static inline unsigned int ceil_shift(unsigned int a, unsigned int b) -{ - return CEIL_SHIFT(a, b); -} - -static inline unsigned int ceil_shift_mul(unsigned int a, unsigned int b) -{ - return CEIL_SHIFT_MUL(a, b); -} - -#ifdef ISP2401 -static inline unsigned int round_half_down_div(unsigned int a, unsigned int b) -{ - return ROUND_HALF_DOWN_DIV(a, b); -} - -static inline unsigned int round_half_down_mul(unsigned int a, unsigned int b) -{ - return ROUND_HALF_DOWN_MUL(a, b); -} -#endif - -/* @brief Next Power of Two - * - * @param[in] unsigned number - * - * @return next power of two - * - * This function rounds input to the nearest power of 2 (2^x) - * towards infinity - * - * Input Range: 0 .. 2^(8*sizeof(int)-1) - * - * IF input is a power of 2 - * out = in - * OTHERWISE - * out = 2^(ceil(log2(in)) - * - */ - -static inline unsigned int ceil_pow2(unsigned int a) -{ - if (a == 0) { - return 1; - } - /* IF input is already a power of two*/ - else if ((!((a)&((a)-1)))) { - return a; - } - else { - unsigned int v = a; - v |= v>>1; - v |= v>>2; - v |= v>>4; - v |= v>>8; - v |= v>>16; - return (v+1); - } -} - -#endif /* !defined(PIPE_GENERATION) */ - -#if !defined(__ISP) -/* - * For SP and ISP, SDK provides the definition of OP_std_modadd. - * We need it only for host - */ -#define OP_std_modadd(base, offset, size) ((base+offset)%(size)) -#endif /* !defined(__ISP) */ - -#if !defined(__KERNEL__) -#define clamp(a, min_val, max_val) MIN(MAX((a), (min_val)), (max_val)) -#endif /* !defined(__KERNEL__) */ - -#endif /* __MATH_SUPPORT_H */ |