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95 lines
4.0 KiB
95 lines
4.0 KiB
/******************************************************************************
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*
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* Copyright 1999-2012 Broadcom Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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/******************************************************************************
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*
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* Definitions for the fast DCT.
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*
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******************************************************************************/
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#ifndef SBC_DCT_H
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#define SBC_DCT_H
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#include "sbc_enc_func_declare.h"
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#if (SBC_ARM_ASM_OPT == TRUE)
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#define SBC_MULT_32_16_SIMPLIFIED(s16In2, s32In1, s32OutLow) \
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{ \
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__asm { \
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MUL s32OutLow,(int32_t)s16In2, (s32In1>>15) } \
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}
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#else
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#if (SBC_DSP_OPT == TRUE)
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#define SBC_MULT_32_16_SIMPLIFIED(s16In2, s32In1, s32OutLow) \
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s32OutLow = SBC_Multiply_32_16_Simplified((int32_t)s16In2, s32In1);
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#else
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#if (SBC_IPAQ_OPT == TRUE)
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/*
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#define SBC_MULT_32_16_SIMPLIFIED(s16In2, s32In1 , s32OutLow)
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s32OutLow=(int32_t)((int32_t)(s16In2)*(int32_t)(s32In1>>15));
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*/
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#define SBC_MULT_32_16_SIMPLIFIED(s16In2, s32In1, s32OutLow) \
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s32OutLow = (int32_t)(((int64_t)(s16In2) * (int64_t)(s32In1)) >> 15);
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#if (SBC_IS_64_MULT_IN_IDCT == TRUE)
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#define SBC_MULT_32_32(s32In2, s32In1, s32OutLow) \
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{ \
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s64Temp = ((int64_t)s32In2) * ((int64_t)s32In1) >> 31; \
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s32OutLow = (int32_t)s64Temp; \
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}
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#endif
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#else
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#define SBC_MULT_32_16_SIMPLIFIED(s16In2, s32In1, s32OutLow) \
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{ \
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s32In1Temp = s32In1; \
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s32In2Temp = (int32_t)s16In2; \
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\
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/* Multiply one +ve and the other -ve number */ \
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if (s32In1Temp < 0) { \
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s32In1Temp ^= 0xFFFFFFFF; \
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s32In1Temp++; \
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s32OutLow = (s32In2Temp * (s32In1Temp >> 16)); \
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s32OutLow += ((s32In2Temp * (s32In1Temp & 0xFFFF)) >> 16); \
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s32OutLow ^= 0xFFFFFFFF; \
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s32OutLow++; \
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} else { \
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s32OutLow = (s32In2Temp * (s32In1Temp >> 16)); \
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s32OutLow += ((s32In2Temp * (s32In1Temp & 0xFFFF)) >> 16); \
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} \
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s32OutLow <<= 1; \
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}
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#if (SBC_IS_64_MULT_IN_IDCT == TRUE)
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#define SBC_MULT_64(s32In1, s32In2, s32OutLow, s32OutHi) \
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{ \
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s32OutLow = \
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(int32_t)(((int64_t)s32In1 * (int64_t)s32In2) & 0x00000000FFFFFFFF); \
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s32OutHi = (int32_t)(((int64_t)s32In1 * (int64_t)s32In2) >> 32); \
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}
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#define SBC_MULT_32_32(s32In2, s32In1, s32OutLow) \
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{ \
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s32HiTemp = 0; \
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SBC_MULT_64(s32In2, s32In1, s32OutLow, s32HiTemp); \
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s32OutLow = (((s32OutLow >> 15) & 0x1FFFF) | (s32HiTemp << 17)); \
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}
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#endif
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#endif
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#endif
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#endif
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#endif
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