repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * inline assembly helper macros | |
| 3 | * | |
| 4 | * This file is part of FFmpeg. | |
| 5 | * | |
| 6 | * FFmpeg is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU Lesser General Public | |
| 8 | * License as published by the Free Software Foundation; either | |
| 9 | * version 2.1 of the License, or (at your option) any later version. | |
| 10 | * | |
| 11 | * FFmpeg is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | * Lesser General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU Lesser General Public | |
| 17 | * License along with FFmpeg; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 19 | */ | |
| 20 | ||
| 21 | #ifndef AVCODEC_X86_INLINE_ASM_H | |
| 22 | #define AVCODEC_X86_INLINE_ASM_H | |
| 23 | ||
| 24 | #include "constants.h" | |
| 25 | ||
| 26 | #define MOVQ_WONE(regd) \ | |
| 27 | __asm__ volatile ( \ | |
| 28 | "pcmpeqd %%" #regd ", %%" #regd " \n\t" \ | |
| 29 | "psrlw $15, %%" #regd ::) | |
| 30 | ||
| 31 | #define JUMPALIGN() __asm__ volatile (".p2align 3"::) | |
| 32 | #define MOVQ_ZERO(regd) __asm__ volatile ("pxor %%"#regd", %%"#regd ::) | |
| 33 | ||
| 34 | #define MOVQ_BFE(regd) \ | |
| 35 | __asm__ volatile ( \ | |
| 36 | "pcmpeqd %%"#regd", %%"#regd" \n\t" \ | |
| 37 | "paddb %%"#regd", %%"#regd" \n\t" ::) | |
| 38 | ||
| 39 | #ifndef PIC | |
| 40 | #define MOVQ_WTWO(regd) __asm__ volatile ("movq %0, %%"#regd" \n\t" :: "m"(ff_pw_2)) | |
| 41 | #else | |
| 42 | // for shared library it's better to use this way for accessing constants | |
| 43 | // pcmpeqd -> -1 | |
| 44 | #define MOVQ_WTWO(regd) \ | |
| 45 | __asm__ volatile ( \ | |
| 46 | "pcmpeqd %%"#regd", %%"#regd" \n\t" \ | |
| 47 | "psrlw $15, %%"#regd" \n\t" \ | |
| 48 | "psllw $1, %%"#regd" \n\t"::) | |
| 49 | ||
| 50 | #endif | |
| 51 | ||
| 52 | // using regr as temporary and for the output result | |
| 53 | // first argument is unmodifed and second is trashed | |
| 54 | // regfe is supposed to contain 0xfefefefefefefefe | |
| 55 | #define PAVGB_MMX_NO_RND(rega, regb, regr, regfe) \ | |
| 56 | "movq "#rega", "#regr" \n\t" \ | |
| 57 | "pand "#regb", "#regr" \n\t" \ | |
| 58 | "pxor "#rega", "#regb" \n\t" \ | |
| 59 | "pand "#regfe", "#regb" \n\t" \ | |
| 60 | "psrlq $1, "#regb" \n\t" \ | |
| 61 | "paddb "#regb", "#regr" \n\t" | |
| 62 | ||
| 63 | #define PAVGB_MMX(rega, regb, regr, regfe) \ | |
| 64 | "movq "#rega", "#regr" \n\t" \ | |
| 65 | "por "#regb", "#regr" \n\t" \ | |
| 66 | "pxor "#rega", "#regb" \n\t" \ | |
| 67 | "pand "#regfe", "#regb" \n\t" \ | |
| 68 | "psrlq $1, "#regb" \n\t" \ | |
| 69 | "psubb "#regb", "#regr" \n\t" | |
| 70 | ||
| 71 | // mm6 is supposed to contain 0xfefefefefefefefe | |
| 72 | #define PAVGBP_MMX_NO_RND(rega, regb, regr, regc, regd, regp) \ | |
| 73 | "movq "#rega", "#regr" \n\t" \ | |
| 74 | "movq "#regc", "#regp" \n\t" \ | |
| 75 | "pand "#regb", "#regr" \n\t" \ | |
| 76 | "pand "#regd", "#regp" \n\t" \ | |
| 77 | "pxor "#rega", "#regb" \n\t" \ | |
| 78 | "pxor "#regc", "#regd" \n\t" \ | |
| 79 | "pand %%mm6, "#regb" \n\t" \ | |
| 80 | "pand %%mm6, "#regd" \n\t" \ | |
| 81 | "psrlq $1, "#regb" \n\t" \ | |
| 82 | "psrlq $1, "#regd" \n\t" \ | |
| 83 | "paddb "#regb", "#regr" \n\t" \ | |
| 84 | "paddb "#regd", "#regp" \n\t" | |
| 85 | ||
| 86 | #define PAVGBP_MMX(rega, regb, regr, regc, regd, regp) \ | |
| 87 | "movq "#rega", "#regr" \n\t" \ | |
| 88 | "movq "#regc", "#regp" \n\t" \ | |
| 89 | "por "#regb", "#regr" \n\t" \ | |
| 90 | "por "#regd", "#regp" \n\t" \ | |
| 91 | "pxor "#rega", "#regb" \n\t" \ | |
| 92 | "pxor "#regc", "#regd" \n\t" \ | |
| 93 | "pand %%mm6, "#regb" \n\t" \ | |
| 94 | "pand %%mm6, "#regd" \n\t" \ | |
| 95 | "psrlq $1, "#regd" \n\t" \ | |
| 96 | "psrlq $1, "#regb" \n\t" \ | |
| 97 | "psubb "#regb", "#regr" \n\t" \ | |
| 98 | "psubb "#regd", "#regp" \n\t" | |
| 99 | ||
| 100 | #endif /* AVCODEC_X86_INLINE_ASM_H */ |