## ffmpeg / libavcodec / i386 / dsputil_mmx.h @ be449fca

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1 | 182f56cb | Aurelien Jacobs | ```
/*
``` |
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2 | ```
* MMX optimized DSP utils
``` |
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3 | ```
* Copyright (c) 2007 Aurelien Jacobs <aurel@gnuage.org>
``` |
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4 | ```
*
``` |
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5 | ```
* This file is part of FFmpeg.
``` |
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6 | ```
*
``` |
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7 | ```
* FFmpeg is free software; you can redistribute it and/or
``` |
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8 | ```
* modify it under the terms of the GNU Lesser General Public
``` |
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9 | ```
* License as published by the Free Software Foundation; either
``` |
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10 | ```
* version 2.1 of the License, or (at your option) any later version.
``` |
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11 | ```
*
``` |
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12 | ```
* FFmpeg is distributed in the hope that it will be useful,
``` |
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13 | ```
* but WITHOUT ANY WARRANTY; without even the implied warranty of
``` |
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14 | ```
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
``` |
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15 | ```
* Lesser General Public License for more details.
``` |
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16 | ```
*
``` |
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17 | ```
* You should have received a copy of the GNU Lesser General Public
``` |
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18 | ```
* License along with FFmpeg; if not, write to the Free Software
``` |
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19 | ```
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
``` |
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20 | ```
*/
``` |
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21 | |||

22 | 98790382 | Stefano Sabatini | ```
#ifndef AVCODEC_I386_DSPUTIL_MMX_H
``` |

23 | ```
#define AVCODEC_I386_DSPUTIL_MMX_H
``` |
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24 | 182f56cb | Aurelien Jacobs | |

25 | 1b77e877 | Aurelien Jacobs | #include <stdint.h> |

26 | 245976da | Diego Biurrun | #include "libavcodec/dsputil.h" |

27 | 1b77e877 | Aurelien Jacobs | |

28 | fa9b873e | Loren Merritt | typedef struct { uint64_t a, b; } xmm_t; |

29 | |||

30 | 43de5065 | Aurelien Jacobs | extern const uint64_t ff_bone; |

31 | extern const uint64_t ff_wtwo; |
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32 | 182f56cb | Aurelien Jacobs | |

33 | extern const uint64_t ff_pdw_80000000[2]; |
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34 | |||

35 | extern const uint64_t ff_pw_3; |
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36 | extern const uint64_t ff_pw_4; |
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37 | ddf96970 | Loren Merritt | extern const xmm_t ff_pw_5; |

38 | 21383da8 | David Conrad | extern const xmm_t ff_pw_8; |

39 | 182f56cb | Aurelien Jacobs | extern const uint64_t ff_pw_15; |

40 | ddf96970 | Loren Merritt | extern const xmm_t ff_pw_16; |

41 | 182f56cb | Aurelien Jacobs | extern const uint64_t ff_pw_20; |

42 | ce53144b | Loren Merritt | extern const xmm_t ff_pw_28; |

43 | fa9b873e | Loren Merritt | extern const xmm_t ff_pw_32; |

44 | 182f56cb | Aurelien Jacobs | extern const uint64_t ff_pw_42; |

45 | extern const uint64_t ff_pw_64; |
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46 | extern const uint64_t ff_pw_96; |
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47 | extern const uint64_t ff_pw_128; |
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48 | 97d1d009 | Aurelien Jacobs | extern const uint64_t ff_pw_255; |

49 | 182f56cb | Aurelien Jacobs | |

50 | extern const uint64_t ff_pb_1; |
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51 | extern const uint64_t ff_pb_3; |
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52 | extern const uint64_t ff_pb_7; |
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53 | extern const uint64_t ff_pb_3F; |
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54 | extern const uint64_t ff_pb_A1; |
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55 | extern const uint64_t ff_pb_FC; |
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56 | |||

57 | extern const double ff_pd_1[2]; |
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58 | extern const double ff_pd_2[2]; |
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59 | |||

60 | 1835cda6 | Victor Pollex | ```
#define LOAD4(stride,in,a,b,c,d)\
``` |

61 | "movq 0*"#stride"+"#in", "#a"\n\t"\ |
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62 | "movq 1*"#stride"+"#in", "#b"\n\t"\ |
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63 | "movq 2*"#stride"+"#in", "#c"\n\t"\ |
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64 | "movq 3*"#stride"+"#in", "#d"\n\t" |
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65 | |||

66 | ```
#define STORE4(stride,out,a,b,c,d)\
``` |
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67 | "movq "#a", 0*"#stride"+"#out"\n\t"\ |
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68 | "movq "#b", 1*"#stride"+"#out"\n\t"\ |
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69 | "movq "#c", 2*"#stride"+"#out"\n\t"\ |
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70 | "movq "#d", 3*"#stride"+"#out"\n\t" |
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71 | |||

72 | 28748a91 | Christophe Gisquet | ```
/* in/out: mma=mma+mmb, mmb=mmb-mma */
``` |

73 | ```
#define SUMSUB_BA( a, b ) \
``` |
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74 | "paddw "#b", "#a" \n\t"\ |
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75 | "paddw "#b", "#b" \n\t"\ |
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76 | "psubw "#a", "#b" \n\t" |
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77 | |||

78 | ```
#define SBUTTERFLY(a,b,t,n,m)\
``` |
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79 | "mov" #m " " #a ", " #t " \n\t" /* abcd */\ |
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80 | "punpckl" #n " " #b ", " #a " \n\t" /* aebf */\ |
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81 | "punpckh" #n " " #b ", " #t " \n\t" /* cgdh */\ |
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82 | |||

83 | ```
#define TRANSPOSE4(a,b,c,d,t)\
``` |
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84 | ```
SBUTTERFLY(a,b,t,wd,q) /* a=aebf t=cgdh */\
``` |
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85 | ```
SBUTTERFLY(c,d,b,wd,q) /* c=imjn b=kolp */\
``` |
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86 | ```
SBUTTERFLY(a,c,d,dq,q) /* a=aeim d=bfjn */\
``` |
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87 | ```
SBUTTERFLY(t,b,c,dq,q) /* t=cgko c=dhlp */
``` |
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88 | |||

89 | ```
#ifdef ARCH_X86_64
``` |
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90 | ```
// permutes 01234567 -> 05736421
``` |
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91 | ```
#define TRANSPOSE8(a,b,c,d,e,f,g,h,t)\
``` |
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92 | SBUTTERFLY(a,b,%%xmm8,wd,dqa)\ |
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93 | SBUTTERFLY(c,d,b,wd,dqa)\ |
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94 | SBUTTERFLY(e,f,d,wd,dqa)\ |
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95 | SBUTTERFLY(g,h,f,wd,dqa)\ |
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96 | SBUTTERFLY(a,c,h,dq,dqa)\ |
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97 | SBUTTERFLY(%%xmm8,b,c,dq,dqa)\ |
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98 | SBUTTERFLY(e,g,b,dq,dqa)\ |
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99 | SBUTTERFLY(d,f,g,dq,dqa)\ |
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100 | SBUTTERFLY(a,e,f,qdq,dqa)\ |
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101 | SBUTTERFLY(%%xmm8,d,e,qdq,dqa)\ |
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102 | SBUTTERFLY(h,b,d,qdq,dqa)\ |
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103 | SBUTTERFLY(c,g,b,qdq,dqa)\ |
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104 | "movdqa %%xmm8, "#g" \n\t" |
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105 | ```
#else
``` |
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106 | ```
#define TRANSPOSE8(a,b,c,d,e,f,g,h,t)\
``` |
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107 | "movdqa "#h", "#t" \n\t"\ |
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108 | SBUTTERFLY(a,b,h,wd,dqa)\ |
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109 | "movdqa "#h", 16"#t" \n\t"\ |
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110 | "movdqa "#t", "#h" \n\t"\ |
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111 | SBUTTERFLY(c,d,b,wd,dqa)\ |
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112 | SBUTTERFLY(e,f,d,wd,dqa)\ |
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113 | SBUTTERFLY(g,h,f,wd,dqa)\ |
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114 | SBUTTERFLY(a,c,h,dq,dqa)\ |
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115 | "movdqa "#h", "#t" \n\t"\ |
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116 | "movdqa 16"#t", "#h" \n\t"\ |
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117 | SBUTTERFLY(h,b,c,dq,dqa)\ |
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118 | SBUTTERFLY(e,g,b,dq,dqa)\ |
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119 | SBUTTERFLY(d,f,g,dq,dqa)\ |
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120 | SBUTTERFLY(a,e,f,qdq,dqa)\ |
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121 | SBUTTERFLY(h,d,e,qdq,dqa)\ |
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122 | "movdqa "#h", 16"#t" \n\t"\ |
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123 | "movdqa "#t", "#h" \n\t"\ |
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124 | SBUTTERFLY(h,b,d,qdq,dqa)\ |
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125 | SBUTTERFLY(c,g,b,qdq,dqa)\ |
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126 | "movdqa 16"#t", "#g" \n\t" |
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127 | ```
#endif
``` |
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128 | |||

129 | 97d1d009 | Aurelien Jacobs | ```
#define MOVQ_WONE(regd) \
``` |

130 | be449fca | Diego PettenÃ² | ```
__asm__ volatile ( \
``` |

131 | 97d1d009 | Aurelien Jacobs | "pcmpeqd %%" #regd ", %%" #regd " \n\t" \ |

132 | "psrlw $15, %%" #regd ::) |
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133 | |||

134 | ```
void dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx);
``` |
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135 | |||

136 | 98790382 | Stefano Sabatini | #endif /* AVCODEC_I386_DSPUTIL_MMX_H */ |