diff options
Diffstat (limited to 'libmpcodecs/cmmx.h')
| -rw-r--r-- | libmpcodecs/cmmx.h | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/libmpcodecs/cmmx.h b/libmpcodecs/cmmx.h deleted file mode 100644 index 51ffd235bc..0000000000 --- a/libmpcodecs/cmmx.h +++ /dev/null @@ -1,202 +0,0 @@ -/* - * x86 MMX and MMX2 packed byte operations in portable C. - * Extra instructions: pdiffub, pcmpzb, psumbw, pcmpgtub - * Author: Zoltan Hidvegi - * - * This file is part of MPlayer. - * - * MPlayer is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * MPlayer is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with MPlayer; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#ifndef MPLAYER_CMMX_H -#define MPLAYER_CMMX_H - -typedef unsigned long cmmx_t; - -#define ONE_BYTES (~(cmmx_t)0 / 255) -#define SIGN_BITS (ONE_BYTES << 7) -#define LOWBW_MASK (~(cmmx_t)0 / 257) - -static inline cmmx_t -paddb(cmmx_t a, cmmx_t b) -{ - return ((a & ~SIGN_BITS) + (b & ~SIGN_BITS)) ^ ((a^b) & SIGN_BITS); -} - -static inline cmmx_t -psubb(cmmx_t a, cmmx_t b) -{ - return ((a | SIGN_BITS) - (b & ~SIGN_BITS)) ^ (~(a^b) & SIGN_BITS); -} - -static inline cmmx_t -paddusb(cmmx_t a, cmmx_t b) -{ - cmmx_t s = (a & ~SIGN_BITS) + (b & ~SIGN_BITS); - cmmx_t abs = (a | b) & SIGN_BITS; - cmmx_t c = abs & (s | (a & b)); - return s | abs | (abs - (c >> 7)); -} - -static inline cmmx_t -paddusb_s(cmmx_t a, cmmx_t b) -{ - cmmx_t sum = a+b; - cmmx_t ov = sum & SIGN_BITS; - return sum + (sum ^ (ov - (ov>>7))); -} - -static inline cmmx_t -psubusb(cmmx_t a, cmmx_t b) -{ - cmmx_t s = (a | SIGN_BITS) - (b & ~SIGN_BITS); - cmmx_t anb = a & ~b; - cmmx_t c = (anb | (s & ~(a^b))) & SIGN_BITS; - return s & ((c & anb) | (c - (c >> 7))); -} - -static inline cmmx_t -psubusb_s(cmmx_t a, cmmx_t b) -{ - cmmx_t d = (a|SIGN_BITS) - b; - cmmx_t m = d & SIGN_BITS; - return d & (m - (m>>7)); -} - -static inline cmmx_t -pcmpgtub(cmmx_t b, cmmx_t a) -{ - cmmx_t s = (a | SIGN_BITS) - (b & ~SIGN_BITS); - cmmx_t ret = ((~a & b) | (~s & ~(a ^ b))) & SIGN_BITS; - return ret | (ret - (ret >> 7)); -} - -static inline cmmx_t -pdiffub(cmmx_t a, cmmx_t b) -{ - cmmx_t xs = (~a ^ b) & SIGN_BITS; - cmmx_t s = ((a | SIGN_BITS) - (b & ~SIGN_BITS)) ^ xs; - cmmx_t gt = ((~a & b) | (s & xs)) & SIGN_BITS; - cmmx_t gt7 = gt >> 7; - return (s ^ gt ^ (gt - gt7)) + gt7; -} - -static inline cmmx_t -pdiffub_s(cmmx_t a, cmmx_t b) -{ - cmmx_t d = (a|SIGN_BITS) - b; - cmmx_t g = (~d & SIGN_BITS) >> 7; - return (d ^ (SIGN_BITS-g)) + g; -} - -static inline cmmx_t -pmaxub(cmmx_t a, cmmx_t b) -{ - return psubusb(a,b) + b; -} - -static inline cmmx_t -pminub(cmmx_t a, cmmx_t b) -{ - return paddusb(a,~b) - ~b; -} - -static inline cmmx_t -pminub_s(cmmx_t a, cmmx_t b) -{ - cmmx_t d = (a|SIGN_BITS) - b; - cmmx_t m = ~SIGN_BITS + ((d&SIGN_BITS)>>7); - return ((d&m) + b) & ~SIGN_BITS; -} - -static inline cmmx_t -pavgb(cmmx_t a, cmmx_t b) -{ - cmmx_t ao = a & ONE_BYTES; - cmmx_t bo = b & ONE_BYTES; - return ((a^ao)>>1) + ((b^bo)>>1) + (ao|bo); -} - -static inline cmmx_t -pavgb_s(cmmx_t a, cmmx_t b) -{ - return ((a+b+ONE_BYTES)>>1) & ~SIGN_BITS; -} - -static inline cmmx_t -p31avgb(cmmx_t a, cmmx_t b) -{ - cmmx_t ao = a & (3*ONE_BYTES); - cmmx_t bo = b & (3*ONE_BYTES); - return 3*((a^ao)>>2) + ((b^bo)>>2) + - (((3*ao+bo+2*ONE_BYTES)>>2) & (3*ONE_BYTES)); -} - -static inline cmmx_t -p31avgb_s(cmmx_t a, cmmx_t b) -{ - cmmx_t avg = ((a+b)>>1) & ~SIGN_BITS; - return pavgb_s(avg, a); -} - -static inline unsigned long -psumbw(cmmx_t a) -{ - cmmx_t t = (a & LOWBW_MASK) + ((a>>8) & LOWBW_MASK); - unsigned long ret = - (unsigned long)t + (unsigned long)(t >> (4*sizeof(cmmx_t))); - if (sizeof(cmmx_t) > 4) - ret += ret >> 16; - return ret & 0xffff; -} - -static inline unsigned long -psumbw_s(cmmx_t a) -{ - unsigned long ret = - (unsigned long)a + (unsigned long)(a >> (4*sizeof(cmmx_t))); - if (sizeof(cmmx_t) <= 4) - return (ret & 0xff) + ((ret>>8) & 0xff); - ret = (ret & 0xff00ff) + ((ret>>8) & 0xff00ff); - ret += ret >> 16; - return ret & 0xffff; -} - -static inline unsigned long -psadbw(cmmx_t a, cmmx_t b) -{ - return psumbw(pdiffub(a,b)); -} - -static inline unsigned long -psadbw_s(cmmx_t a, cmmx_t b) -{ - return psumbw_s(pdiffub_s(a,b)); -} - -static inline cmmx_t -pcmpzb(cmmx_t a) -{ - cmmx_t ret = (((a | SIGN_BITS) - ONE_BYTES) | a) & SIGN_BITS; - return ~(ret | (ret - (ret >> 7))); -} - -static inline cmmx_t -pcmpeqb(cmmx_t a, cmmx_t b) -{ - return pcmpzb(a ^ b); -} - -#endif /* MPLAYER_CMMX_H */ |