/* * Copyright (c) 2001-2016, Alliance for Open Media. All rights reserved * * This source code is subject to the terms of the BSD 2 Clause License and * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License * was not distributed with this source code in the LICENSE file, you can * obtain it at www.aomedia.org/license/software. If the Alliance for Open * Media Patent License 1.0 was not distributed with this source code in the * PATENTS file, you can obtain it at www.aomedia.org/license/patent. */ /* clang-format off */ #ifndef AV1_COMMON_ODINTRIN_H_ #define AV1_COMMON_ODINTRIN_H_ #if defined(_MSC_VER) # define _USE_MATH_DEFINES #endif #include #include #include #include "aom/aom_integer.h" #include "aom_dsp/aom_dsp_common.h" #include "aom_ports/bitops.h" #include "av1/common/enums.h" #ifdef __cplusplus extern "C" { #endif # if !defined(M_PI) # define M_PI (3.1415926535897932384626433832795) # endif # if !defined(M_SQRT2) # define M_SQRT2 (1.41421356237309504880168872420970) # endif # if !defined(M_SQRT1_2) # define M_SQRT1_2 (0.70710678118654752440084436210485) # endif # if !defined(M_LOG2E) # define M_LOG2E (1.4426950408889634073599246810019) # endif # if !defined(M_LN2) # define M_LN2 (0.69314718055994530941723212145818) # endif /*Smallest blocks are 4x4*/ #define OD_LOG_BSIZE0 (2) /*There are 5 block sizes total (4x4, 8x8, 16x16, 32x32 and 64x64).*/ #define OD_NBSIZES (5) /*There are 4 transform sizes total in AV1 (4x4, 8x8, 16x16 and 32x32).*/ #define OD_TXSIZES TX_SIZES /*The log of the maximum length of the side of a transform.*/ #define OD_LOG_TXSIZE_MAX (OD_LOG_BSIZE0 + OD_TXSIZES - 1) /*The maximum length of the side of a transform.*/ #define OD_TXSIZE_MAX (1 << OD_LOG_TXSIZE_MAX) /**The maximum number of color planes allowed in a single frame.*/ # define OD_NPLANES_MAX (3) # define OD_COEFF_SHIFT (4) # define OD_DISABLE_CFL (1) # define OD_DISABLE_FILTER (1) #if !defined(NDEBUG) # define OD_ENABLE_ASSERTIONS (1) #endif # define OD_LOG(a) # define OD_LOG_PARTIAL(a) /*Possible block sizes, note that OD_BLOCK_NXN = log2(N) - 2.*/ #define OD_BLOCK_4X4 (0) #define OD_BLOCK_8X8 (1) #define OD_BLOCK_16X16 (2) #define OD_BLOCK_32X32 (3) #define OD_BLOCK_SIZES (OD_BLOCK_32X32 + 1) # define OD_LIMIT_BSIZE_MIN (OD_BLOCK_4X4) # define OD_LIMIT_BSIZE_MAX (OD_BLOCK_32X32) typedef int od_coeff; #define OD_DIVU_DMAX (1024) extern uint32_t OD_DIVU_SMALL_CONSTS[OD_DIVU_DMAX][2]; /*Translate unsigned division by small divisors into multiplications.*/ #define OD_DIVU_SMALL(_x, _d) \ ((uint32_t)((OD_DIVU_SMALL_CONSTS[(_d)-1][0] * (uint64_t)(_x) + \ OD_DIVU_SMALL_CONSTS[(_d)-1][1]) >> \ 32) >> \ (OD_ILOG_NZ(_d) - 1)) #define OD_DIVU(_x, _d) \ (((_d) < OD_DIVU_DMAX) ? (OD_DIVU_SMALL((_x), (_d))) : ((_x) / (_d))) #define OD_MINI AOMMIN #define OD_MAXI AOMMAX #define OD_CLAMPI(min, val, max) (OD_MAXI(min, OD_MINI(val, max))) #define OD_CLZ0 (1) #define OD_CLZ(x) (-get_msb(x)) #define OD_ILOG_NZ(x) (OD_CLZ0 - OD_CLZ(x)) /*Note that __builtin_clz is not defined when x == 0, according to the gcc documentation (and that of the x86 BSR instruction that implements it), so we have to special-case it. We define a special version of the macro to use when x can be zero.*/ #define OD_ILOG(x) ((x) ? OD_ILOG_NZ(x) : 0) #define OD_LOG2(x) (M_LOG2E*log(x)) #define OD_EXP2(x) (exp(M_LN2*(x))) /*Enable special features for gcc and compatible compilers.*/ #if defined(__GNUC__) && defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__) #define OD_GNUC_PREREQ(maj, min, pat) \ ((__GNUC__ << 16) + (__GNUC_MINOR__ << 8) + __GNUC_PATCHLEVEL__ >= \ ((maj) << 16) + ((min) << 8) + pat) // NOLINT #else #define OD_GNUC_PREREQ(maj, min, pat) (0) #endif #if OD_GNUC_PREREQ(3, 4, 0) #define OD_WARN_UNUSED_RESULT __attribute__((__warn_unused_result__)) #else #define OD_WARN_UNUSED_RESULT #endif #if OD_GNUC_PREREQ(3, 4, 0) #define OD_ARG_NONNULL(x) __attribute__((__nonnull__(x))) #else #define OD_ARG_NONNULL(x) #endif #if defined(OD_ENABLE_ASSERTIONS) #if OD_GNUC_PREREQ(2, 5, 0) __attribute__((noreturn)) #endif void od_fatal_impl(const char *_str, const char *_file, int _line); #define OD_FATAL(_str) (od_fatal_impl(_str, __FILE__, __LINE__)) #define OD_ASSERT(_cond) \ do { \ if (!(_cond)) { \ OD_FATAL("assertion failed: " #_cond); \ } \ } while (0) #define OD_ASSERT2(_cond, _message) \ do { \ if (!(_cond)) { \ OD_FATAL("assertion failed: " #_cond "\n" _message); \ } \ } while (0) #define OD_ALWAYS_TRUE(_cond) OD_ASSERT(_cond) #else #define OD_ASSERT(_cond) #define OD_ASSERT2(_cond, _message) #define OD_ALWAYS_TRUE(_cond) ((void)(_cond)) #endif /** Copy n elements of memory from src to dst. The 0* term provides compile-time type checking */ #if !defined(OVERRIDE_OD_COPY) #define OD_COPY(dst, src, n) \ (memcpy((dst), (src), sizeof(*(dst)) * (n) + 0 * ((dst) - (src)))) #endif /** Copy n elements of memory from src to dst, allowing overlapping regions. The 0* term provides compile-time type checking */ #if !defined(OVERRIDE_OD_MOVE) # define OD_MOVE(dst, src, n) \ (memmove((dst), (src), sizeof(*(dst))*(n) + 0*((dst) - (src)) )) #endif /** Linkage will break without this if using a C++ compiler, and will issue * warnings without this for a C compiler*/ #if defined(__cplusplus) # define OD_EXTERN extern #else # define OD_EXTERN #endif /** Set n elements of dst to zero */ #if !defined(OVERRIDE_OD_CLEAR) # define OD_CLEAR(dst, n) (memset((dst), 0, sizeof(*(dst))*(n))) #endif /** Silence unused parameter/variable warnings */ # define OD_UNUSED(expr) (void)(expr) #if defined(OD_FLOAT_PVQ) typedef double od_val16; typedef double od_val32; # define OD_QCONST32(x, bits) (x) # define OD_ROUND16(x) (x) # define OD_ROUND32(x) (x) # define OD_SHL(x, shift) (x) # define OD_SHR(x, shift) (x) # define OD_SHR_ROUND(x, shift) (x) # define OD_ABS(x) (fabs(x)) # define OD_MULT16_16(a, b) ((a)*(b)) # define OD_MULT16_32_Q16(a, b) ((a)*(b)) #else typedef int16_t od_val16; typedef int32_t od_val32; /** Compile-time conversion of float constant to 32-bit value */ # define OD_QCONST32(x, bits) ((od_val32)(.5 + (x)*(((od_val32)1) << (bits)))) # define OD_ROUND16(x) (int16_t)(floor(.5 + (x))) # define OD_ROUND32(x) (int32_t)(floor(.5 + (x))) /*Shift x left by shift*/ # define OD_SHL(a, shift) ((int32_t)((uint32_t)(a) << (shift))) /*Shift x right by shift (without rounding)*/ # define OD_SHR(x, shift) \ ((int32_t)((x) >> (shift))) /*Shift x right by shift (with rounding)*/ # define OD_SHR_ROUND(x, shift) \ ((int32_t)(((x) + (1 << (shift) >> 1)) >> (shift))) /*Shift x right by shift (without rounding) or left by -shift if shift is negative.*/ # define OD_VSHR(x, shift) \ (((shift) > 0) ? OD_SHR(x, shift) : OD_SHL(x, -(shift))) /*Shift x right by shift (with rounding) or left by -shift if shift is negative.*/ # define OD_VSHR_ROUND(x, shift) \ (((shift) > 0) ? OD_SHR_ROUND(x, shift) : OD_SHL(x, -(shift))) # define OD_ABS(x) (abs(x)) /* (od_val32)(od_val16) gives TI compiler a hint that it's 16x16->32 multiply */ /** 16x16 multiplication where the result fits in 32 bits */ # define OD_MULT16_16(a, b) \ (((od_val32)(od_val16)(a))*((od_val32)(od_val16)(b))) /* Multiplies 16-bit a by 32-bit b and keeps bits [16:47]. */ # define OD_MULT16_32_Q16(a, b) ((int16_t)(a)*(int64_t)(int32_t)(b) >> 16) /*16x16 multiplication where the result fits in 16 bits, without rounding.*/ # define OD_MULT16_16_Q15(a, b) \ (((int16_t)(a)*((int32_t)(int16_t)(b))) >> 15) /*16x16 multiplication where the result fits in 16 bits, without rounding.*/ # define OD_MULT16_16_Q16(a, b) \ ((((int16_t)(a))*((int32_t)(int16_t)(b))) >> 16) #endif /*All of these macros should expect floats as arguments.*/ /*These two should compile as a single SSE instruction.*/ # define OD_MINF(a, b) ((a) < (b) ? (a) : (b)) # define OD_MAXF(a, b) ((a) > (b) ? (a) : (b)) # define OD_DIV_R0(x, y) (((x) + OD_FLIPSIGNI((((y) + 1) >> 1) - 1, (x)))/(y)) # define OD_SIGNMASK(a) (-((a) < 0)) # define OD_FLIPSIGNI(a, b) (((a) + OD_SIGNMASK(b)) ^ OD_SIGNMASK(b)) # define OD_MULT16_16_Q15(a, b) \ (((int16_t)(a)*((int32_t)(int16_t)(b))) >> 15) #ifdef __cplusplus } // extern "C" #endif #endif // AV1_COMMON_ODINTRIN_H_