| /* |
| * 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 <math.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #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) |
| |
| typedef int od_coeff; |
| |
| /*This is the strength reduced version of ((_a)/(1 << (_b))). |
| This will not work for _b == 0, however currently this is only used for |
| b == 1 anyway.*/ |
| # define OD_UNBIASED_RSHIFT32(_a, _b) \ |
| (((int32_t)(((uint32_t)(_a) >> (32 - (_b))) + (_a))) >> (_b)) |
| |
| #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) |
| |
| 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))) |
| # define OD_ABS(x) (abs(x)) |
| |
| /*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)) |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // AV1_COMMON_ODINTRIN_H_ |