diff options
Diffstat (limited to 'embdrv/sbc/encoder/include/sbc_dct.h')
| -rw-r--r-- | embdrv/sbc/encoder/include/sbc_dct.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/embdrv/sbc/encoder/include/sbc_dct.h b/embdrv/sbc/encoder/include/sbc_dct.h new file mode 100644 index 0000000..be077e2 --- /dev/null +++ b/embdrv/sbc/encoder/include/sbc_dct.h @@ -0,0 +1,78 @@ +/****************************************************************************** +** +** File Name: $RCSfile: sbc_dct.h,v $ +** +** Description: Definitions for the fast DCT. +** +** Copyright (c) 1999-2008, Broadcom Corp., All Rights Reserved. +** Widcomm Bluetooth Core. Proprietary and confidential. +** +******************************************************************************/ + +#ifndef SBC_DCT_H +#define SBC_DCT_H + +#if (SBC_ARM_ASM_OPT==TRUE) +#define SBC_MULT_32_16_SIMPLIFIED(s16In2, s32In1, s32OutLow) \ +{ \ + __asm \ +{ \ + MUL s32OutLow,(SINT32)s16In2, (s32In1>>15) \ +} \ +} +#else +#if (SBC_DSP_OPT==TRUE) +#define SBC_MULT_32_16_SIMPLIFIED(s16In2, s32In1 , s32OutLow) s32OutLow = SBC_Multiply_32_16_Simplified((SINT32)s16In2,s32In1); +#else +#if (SBC_IPAQ_OPT==TRUE) +/*#define SBC_MULT_32_16_SIMPLIFIED(s16In2, s32In1 , s32OutLow) s32OutLow=(SINT32)((SINT32)(s16In2)*(SINT32)(s32In1>>15)); */ +#define SBC_MULT_32_16_SIMPLIFIED(s16In2, s32In1 , s32OutLow) s32OutLow=(SINT32)(((SINT64)s16In2*(SINT64)s32In1)>>15); +#if (SBC_IS_64_MULT_IN_IDCT == TRUE) +#define SBC_MULT_32_32(s32In2, s32In1, s32OutLow) \ +{ \ + s64Temp = ((SINT64) s32In2) * ((SINT64) s32In1)>>31; \ + s32OutLow = (SINT32) s64Temp; \ +} +#endif +#else +#define SBC_MULT_32_16_SIMPLIFIED(s16In2, s32In1 , s32OutLow) \ +{ \ + s32In1Temp = s32In1; \ + s32In2Temp = (SINT32)s16In2; \ + \ + /* Multiply one +ve and the other -ve number */ \ + if (s32In1Temp < 0) \ + { \ + s32In1Temp ^= 0xFFFFFFFF; \ + s32In1Temp++; \ + s32OutLow = (s32In2Temp * (s32In1Temp >> 16)); \ + s32OutLow += (( s32In2Temp * (s32In1Temp & 0xFFFF)) >> 16); \ + s32OutLow ^= 0xFFFFFFFF; \ + s32OutLow++; \ + } \ + else \ + { \ + s32OutLow = (s32In2Temp * (s32In1Temp >> 16)); \ + s32OutLow += (( s32In2Temp * (s32In1Temp & 0xFFFF)) >> 16); \ + } \ + s32OutLow <<= 1; \ +} +#if (SBC_IS_64_MULT_IN_IDCT == TRUE) +#define SBC_MULT_64(s32In1, s32In2, s32OutLow, s32OutHi) \ +{\ + s32OutLow=(SINT32)(((SINT64)s32In1*(SINT64)s32In2)& 0x00000000FFFFFFFF);\ + s32OutHi=(SINT32)(((SINT64)s32In1*(SINT64)s32In2)>>32);\ +} +#define SBC_MULT_32_32(s32In2, s32In1, s32OutLow) \ +{ \ + s32HiTemp = 0; \ + SBC_MULT_64(s32In2,s32In1 , s32OutLow, s32HiTemp); \ + s32OutLow = (((s32OutLow>>15)&0x1FFFF) | (s32HiTemp << 17)); \ +} +#endif + +#endif +#endif +#endif + +#endif |