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Diffstat (limited to 'media/libstagefright/codecs/aacdec/fxp_mul32_c_equivalent.h')
| -rw-r--r-- | media/libstagefright/codecs/aacdec/fxp_mul32_c_equivalent.h | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/aacdec/fxp_mul32_c_equivalent.h b/media/libstagefright/codecs/aacdec/fxp_mul32_c_equivalent.h new file mode 100644 index 0000000..5bcbe53 --- /dev/null +++ b/media/libstagefright/codecs/aacdec/fxp_mul32_c_equivalent.h @@ -0,0 +1,285 @@ +/* ------------------------------------------------------------------ + * Copyright (C) 1998-2009 PacketVideo + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either + * express or implied. + * See the License for the specific language governing permissions + * and limitations under the License. + * ------------------------------------------------------------------- + */ +/* + + Pathname: ./c/include/fxp_mul32_c_equivalent.h + +------------------------------------------------------------------------------ + REVISION HISTORY + + Who: Date: + Description: +------------------------------------------------------------------------------ + INCLUDE DESCRIPTION + +------------------------------------------------------------------------------ +*/ + +#ifndef FXP_MUL32_C_EQUIVALENT +#define FXP_MUL32_C_EQUIVALENT + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +#include "pv_audio_type_defs.h" + + +#if defined(C_EQUIVALENT) + +#define preload_cache( a) + + __inline Int32 shft_lft_1(Int32 L_var1) + { + if (((L_var1 << 1) >> 1) == L_var1) + L_var1 <<= 1; + else + L_var1 = ((L_var1 >> 31) ^ INT32_MAX); + + return (L_var1); + + } + + + __inline Int32 fxp_mul_16_by_16bb(Int32 L_var1, Int32 L_var2) + { + L_var2 = (L_var2 << 16) >> 16; + L_var1 = (L_var1 << 16) >> 16; + + L_var1 *= L_var2; + + return L_var1; + + } + + +#define fxp_mul_16_by_16(a, b) fxp_mul_16_by_16bb( a, b) + + + __inline Int32 fxp_mul_16_by_16tb(Int32 L_var1, Int32 L_var2) + { + L_var2 = (L_var2 << 16) >> 16; + L_var1 = L_var1 >> 16; + + L_var1 *= L_var2; + + return L_var1; + + } + + + __inline Int32 fxp_mul_16_by_16bt(Int32 L_var1, Int32 L_var2) + { + L_var2 = L_var2 >> 16; + L_var1 = (L_var1 << 16) >> 16; + + L_var1 *= L_var2; + + return L_var1; + + } + + + __inline Int32 fxp_mul_16_by_16tt(Int32 L_var1, Int32 L_var2) + { + L_var2 = L_var2 >> 16; + L_var1 = L_var1 >> 16; + + L_var1 *= L_var2; + + return L_var1; + + } + + __inline Int32 fxp_mac_16_by_16(Int16 L_var1, Int16 L_var2, Int32 L_add) + { + + L_add += L_var1 * L_var2; + + return L_add; + + } + + + + + + __inline Int32 fxp_mac_16_by_16_bb(Int16 L_var1, Int32 L_var2, Int32 L_add) + { + L_var2 = (L_var2 << 16) >> 16; + + L_add += L_var1 * L_var2; + + return L_add; + + } + + + __inline Int32 fxp_mac_16_by_16_bt(Int16 L_var1, Int32 L_var2, Int32 L_add) + { + L_var2 = L_var2 >> 16; + + L_add += L_var1 * L_var2; + + return L_add; + + } + + + + + + __inline Int32 cmplx_mul32_by_16(Int32 x, const Int32 y, Int32 exp_jw) + { + Int32 rTmp0 = (Int16)(exp_jw >> 16); + Int32 iTmp0 = exp_jw; + Int32 z; + + z = (Int32)(((int64_t)x * (rTmp0 << 16)) >> 32); + z += (Int32)(((int64_t)y * (iTmp0 << 16)) >> 32); + + return (z); + } + + + __inline Int32 fxp_mul32_by_16(Int32 L_var1, const Int32 L_var2) + { + Int32 z; + + z = (Int32)(((int64_t) L_var1 * (L_var2 << 16)) >> 32); + return(z); + } + + +#define fxp_mul32_by_16b( a, b) fxp_mul32_by_16( a, b) + + + __inline Int32 fxp_mul32_by_16t(Int32 L_var1, const Int32 L_var2) + { + Int32 rTmp0 = (Int16)(L_var2 >> 16); + Int32 z; + + z = (Int32)(((int64_t) L_var1 * (rTmp0 << 16)) >> 32); + + return(z); + } + + + __inline Int32 fxp_mac32_by_16(const Int32 L_var1, const Int32 L_var2, Int32 L_add) + { + Int32 rTmp0 = L_var2 << 16; + + L_add += (Int32)(((int64_t) L_var1 * rTmp0) >> 32); + + return(L_add); + } + + __inline int64_t fxp_mac64_Q31(int64_t sum, const Int32 L_var1, const Int32 L_var2) + { + sum += (int64_t)L_var1 * L_var2; + return (sum); + } + + __inline Int32 fxp_mul32_Q31(const Int32 a, const Int32 b) + { + return (Int32)(((int64_t)(a) * b) >> 32); + } + + __inline Int32 fxp_mac32_Q31(Int32 L_add, const Int32 a, const Int32 b) + { + return (L_add + (Int32)(((int64_t)(a) * b) >> 32)); + } + + __inline Int32 fxp_msu32_Q31(Int32 L_sub, const Int32 a, const Int32 b) + { + return (L_sub - (Int32)(((int64_t)(a) * b) >> 32)); + } + + + __inline Int32 fxp_mul32_Q30(const Int32 a, const Int32 b) + { + return (Int32)(((int64_t)(a) * b) >> 30); + } + + __inline Int32 fxp_mac32_Q30(const Int32 a, const Int32 b, Int32 L_add) + { + return (L_add + (Int32)(((int64_t)(a) * b) >> 30)); + } + + + __inline Int32 fxp_mul32_Q29(const Int32 a, const Int32 b) + { + return (Int32)(((int64_t)(a) * b) >> 29); + } + + __inline Int32 fxp_mac32_Q29(const Int32 a, const Int32 b, Int32 L_add) + { + return (L_add + (Int32)(((int64_t)(a) * b) >> 29)); + } + + __inline Int32 fxp_msu32_Q29(const Int32 a, const Int32 b, Int32 L_sub) + { + return (L_sub - (Int32)(((int64_t)(a) * b) >> 29)); + } + + + __inline Int32 fxp_mul32_Q28(const Int32 a, const Int32 b) + { + return (Int32)(((int64_t)(a) * b) >> 28); + } + + __inline Int32 fxp_mul32_Q27(const Int32 a, const Int32 b) + { + return (Int32)(((int64_t)(a) * b) >> 27); + } + + __inline Int32 fxp_mul32_Q26(const Int32 a, const Int32 b) + { + return (Int32)(((int64_t)(a) * b) >> 26); + } + + __inline Int32 fxp_mul32_Q20(const Int32 a, const Int32 b) + { + return (Int32)(((int64_t)(a) * b) >> 20); + } + + __inline Int32 fxp_mul32_Q15(const Int32 a, const Int32 b) + { + return (Int32)(((int64_t)(a) * b) >> 15); + } + + __inline Int32 fxp_mul32_Q14(const Int32 a, const Int32 b) + { + return (Int32)(((int64_t)(a) * b) >> 14); + } + + + +#endif + + +#ifdef __cplusplus +} +#endif + + +#endif /* FXP_MUL32 */ + |