1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/libopus/silk/arm/macros_armv4.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,103 @@
1.4 +/***********************************************************************
1.5 +Copyright (C) 2013 Xiph.Org Foundation and contributors.
1.6 +Redistribution and use in source and binary forms, with or without
1.7 +modification, are permitted provided that the following conditions
1.8 +are met:
1.9 +- Redistributions of source code must retain the above copyright notice,
1.10 +this list of conditions and the following disclaimer.
1.11 +- Redistributions in binary form must reproduce the above copyright
1.12 +notice, this list of conditions and the following disclaimer in the
1.13 +documentation and/or other materials provided with the distribution.
1.14 +- Neither the name of Internet Society, IETF or IETF Trust, nor the
1.15 +names of specific contributors, may be used to endorse or promote
1.16 +products derived from this software without specific prior written
1.17 +permission.
1.18 +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
1.19 +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.20 +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.21 +ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
1.22 +LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.23 +CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.24 +SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.25 +INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.26 +CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.27 +ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.28 +POSSIBILITY OF SUCH DAMAGE.
1.29 +***********************************************************************/
1.30 +
1.31 +#ifndef SILK_MACROS_ARMv4_H
1.32 +#define SILK_MACROS_ARMv4_H
1.33 +
1.34 +/* (a32 * (opus_int32)((opus_int16)(b32))) >> 16 output have to be 32bit int */
1.35 +#undef silk_SMULWB
1.36 +static OPUS_INLINE opus_int32 silk_SMULWB_armv4(opus_int32 a, opus_int16 b)
1.37 +{
1.38 + unsigned rd_lo;
1.39 + int rd_hi;
1.40 + __asm__(
1.41 + "#silk_SMULWB\n\t"
1.42 + "smull %0, %1, %2, %3\n\t"
1.43 + : "=&r"(rd_lo), "=&r"(rd_hi)
1.44 + : "%r"(a), "r"(b<<16)
1.45 + );
1.46 + return rd_hi;
1.47 +}
1.48 +#define silk_SMULWB(a, b) (silk_SMULWB_armv4(a, b))
1.49 +
1.50 +/* a32 + (b32 * (opus_int32)((opus_int16)(c32))) >> 16 output have to be 32bit int */
1.51 +#undef silk_SMLAWB
1.52 +#define silk_SMLAWB(a, b, c) ((a) + silk_SMULWB(b, c))
1.53 +
1.54 +/* (a32 * (b32 >> 16)) >> 16 */
1.55 +#undef silk_SMULWT
1.56 +static OPUS_INLINE opus_int32 silk_SMULWT_armv4(opus_int32 a, opus_int32 b)
1.57 +{
1.58 + unsigned rd_lo;
1.59 + int rd_hi;
1.60 + __asm__(
1.61 + "#silk_SMULWT\n\t"
1.62 + "smull %0, %1, %2, %3\n\t"
1.63 + : "=&r"(rd_lo), "=&r"(rd_hi)
1.64 + : "%r"(a), "r"(b&~0xFFFF)
1.65 + );
1.66 + return rd_hi;
1.67 +}
1.68 +#define silk_SMULWT(a, b) (silk_SMULWT_armv4(a, b))
1.69 +
1.70 +/* a32 + (b32 * (c32 >> 16)) >> 16 */
1.71 +#undef silk_SMLAWT
1.72 +#define silk_SMLAWT(a, b, c) ((a) + silk_SMULWT(b, c))
1.73 +
1.74 +/* (a32 * b32) >> 16 */
1.75 +#undef silk_SMULWW
1.76 +static OPUS_INLINE opus_int32 silk_SMULWW_armv4(opus_int32 a, opus_int32 b)
1.77 +{
1.78 + unsigned rd_lo;
1.79 + int rd_hi;
1.80 + __asm__(
1.81 + "#silk_SMULWW\n\t"
1.82 + "smull %0, %1, %2, %3\n\t"
1.83 + : "=&r"(rd_lo), "=&r"(rd_hi)
1.84 + : "%r"(a), "r"(b)
1.85 + );
1.86 + return (rd_hi<<16)+(rd_lo>>16);
1.87 +}
1.88 +#define silk_SMULWW(a, b) (silk_SMULWW_armv4(a, b))
1.89 +
1.90 +#undef silk_SMLAWW
1.91 +static OPUS_INLINE opus_int32 silk_SMLAWW_armv4(opus_int32 a, opus_int32 b,
1.92 + opus_int32 c)
1.93 +{
1.94 + unsigned rd_lo;
1.95 + int rd_hi;
1.96 + __asm__(
1.97 + "#silk_SMLAWW\n\t"
1.98 + "smull %0, %1, %2, %3\n\t"
1.99 + : "=&r"(rd_lo), "=&r"(rd_hi)
1.100 + : "%r"(b), "r"(c)
1.101 + );
1.102 + return a+(rd_hi<<16)+(rd_lo>>16);
1.103 +}
1.104 +#define silk_SMLAWW(a, b, c) (silk_SMLAWW_armv4(a, b, c))
1.105 +
1.106 +#endif /* SILK_MACROS_ARMv4_H */
