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Revision 1.1.2.1 - (view) (download)
| 1 : | chl | 1.1.2.1 | /************************************************************************** |
| 2 : | * | ||
| 3 : | * XVID MPEG-4 VIDEO CODEC | ||
| 4 : | * GMC interpolation module | ||
| 5 : | * | ||
| 6 : | * This program is free software; you can redistribute it and/or modify | ||
| 7 : | * it under the terms of the GNU General Public License as published by | ||
| 8 : | * the Free Software Foundation; either version 2 of the License, or | ||
| 9 : | * (at your option) any later version. | ||
| 10 : | * | ||
| 11 : | * This program 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 | ||
| 14 : | * GNU General Public License for more details. | ||
| 15 : | * | ||
| 16 : | * You should have received a copy of the GNU General Public License | ||
| 17 : | * along with this program; if not, write to the Free Software | ||
| 18 : | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| 19 : | * | ||
| 20 : | *************************************************************************/ | ||
| 21 : | |||
| 22 : | #include "../portab.h" | ||
| 23 : | #include "../global.h" | ||
| 24 : | |||
| 25 : | /* This is borrowed from decoder.c */ | ||
| 26 : | static __inline int gmc_sanitize(int value, int quarterpel, int fcode) | ||
| 27 : | { | ||
| 28 : | int length = 1 << (fcode+4); | ||
| 29 : | |||
| 30 : | // if (quarterpel) value *= 2; | ||
| 31 : | |||
| 32 : | if (value < -length) | ||
| 33 : | return -length; | ||
| 34 : | else if (value >= length) | ||
| 35 : | return length-1; | ||
| 36 : | else return value; | ||
| 37 : | } | ||
| 38 : | |||
| 39 : | |||
| 40 : | /* And this is borrowed from bitstream.c until we find a common solution */ | ||
| 41 : | static uint32_t __inline | ||
| 42 : | log2bin(uint32_t value) | ||
| 43 : | { | ||
| 44 : | /* Changed by Chenm001 */ | ||
| 45 : | #if !defined(_MSC_VER) | ||
| 46 : | int n = 0; | ||
| 47 : | |||
| 48 : | while (value) { | ||
| 49 : | value >>= 1; | ||
| 50 : | n++; | ||
| 51 : | } | ||
| 52 : | return n; | ||
| 53 : | #else | ||
| 54 : | __asm { | ||
| 55 : | bsr eax, value | ||
| 56 : | inc eax | ||
| 57 : | } | ||
| 58 : | #endif | ||
| 59 : | } | ||
| 60 : | /* 16*sizeof(int) -> 1 or 2 cachelines */ | ||
| 61 : | /* table lookup might be faster! (still to be benchmarked) */ | ||
| 62 : | |||
| 63 : | /* | ||
| 64 : | static int log2bin_table[16] = | ||
| 65 : | { 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 4}; | ||
| 66 : | */ | ||
| 67 : | /* 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 */ | ||
| 68 : | |||
| 69 : | |||
| 70 : | |||
| 71 : | |||
| 72 : | #define RDIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b)) | ||
| 73 : | #define RSHIFT(a,b) ( (a)>0 ? ((a) + (1<<((b)-1)))>>(b) : ((a) + (1<<((b)-1))-1)>>(b)) | ||
| 74 : | |||
| 75 : | #define MLT(i) (((16-(i))<<16) + (i)) | ||
| 76 : | static const uint32_t MTab[16] = { | ||
| 77 : | MLT( 0), MLT( 1), MLT( 2), MLT( 3), MLT( 4), MLT( 5), MLT( 6), MLT( 7), | ||
| 78 : | MLT( 8), MLT( 9), MLT(10), MLT(11), MLT(12), MLT(13), MLT(14), MLT(15) | ||
| 79 : | }; | ||
| 80 : | #undef MLT | ||
| 81 : | |||
| 82 : | ////////////////////////////////////////////////////////// | ||
| 83 : | // Pts = 2 or 3 | ||
| 84 : | |||
| 85 : | // Warning! *src is the global frame pointer (that is: adress | ||
| 86 : | // of pixel 0,0), not the macroblock one. | ||
| 87 : | // Conversely, *dst is the macroblock top-left adress. | ||
| 88 : | |||
| 89 : | void Predict_16x16_C(const NEW_GMC_DATA * const This, | ||
| 90 : | uint8_t *dst, const uint8_t *src, | ||
| 91 : | int dststride, int srcstride, int x, int y, int rounding); | ||
| 92 : | |||
| 93 : | void Predict_8x8_C(const NEW_GMC_DATA * const This, | ||
| 94 : | uint8_t *uDst, const uint8_t *uSrc, | ||
| 95 : | uint8_t *vDst, const uint8_t *vSrc, | ||
| 96 : | int dststride, int srcstride, int x, int y, int rounding); | ||
| 97 : | |||
| 98 : | void get_average_mv_C(NEW_GMC_DATA *Dsp, VECTOR * const mv, | ||
| 99 : | int x, int y, int qpel); | ||
| 100 : | |||
| 101 : | /* ************************************************************ */ | ||
| 102 : | // simplified version for 1 warp point | ||
| 103 : | |||
| 104 : | void Predict_1pt_16x16_C(const NEW_GMC_DATA * const This, | ||
| 105 : | uint8_t *Dst, const uint8_t *Src, | ||
| 106 : | int dststride, int srcstride, int x, int y, int rounding); | ||
| 107 : | |||
| 108 : | void Predict_1pt_8x8_C(const NEW_GMC_DATA * const This, | ||
| 109 : | uint8_t *uDst, const uint8_t *uSrc, | ||
| 110 : | uint8_t *vDst, const uint8_t *vSrc, | ||
| 111 : | int dststride, int srcstride, int x, int y, int rounding); | ||
| 112 : | |||
| 113 : | void get_average_mv_1pt_C(NEW_GMC_DATA *Dsp, VECTOR * const mv, | ||
| 114 : | int x, int y, int qpel); | ||
| 115 : | |||
| 116 : | /* ************************************************************* */ | ||
| 117 : | |||
| 118 : | |||
| 119 : | // Warning! It's Accuracy being passed, not 'resolution'! | ||
| 120 : | |||
| 121 : | void generate_GMCparameters( int nb_pts, const int accuracy, | ||
| 122 : | const WARPPOINTS *const pts, | ||
| 123 : | const int width, const int height, | ||
| 124 : | NEW_GMC_DATA *const gmc); | ||
| 125 : | |||
| 126 : | /* ******************************************************************* */ | ||
| 127 : | |||
| 128 : | |||
| 129 : | void | ||
| 130 : | generate_GMCimage( const NEW_GMC_DATA *const gmc_data, // [input] precalculated data | ||
| 131 : | const IMAGE *const pRef, // [input] | ||
| 132 : | const int mb_width, | ||
| 133 : | const int mb_height, | ||
| 134 : | const int stride, | ||
| 135 : | const int stride2, | ||
| 136 : | const int fcode, // [input] some parameters... | ||
| 137 : | const int32_t quarterpel, // [input] for rounding avgMV | ||
| 138 : | const int reduced_resolution, // [input] ignored | ||
| 139 : | const int32_t rounding, // [input] for rounding image data | ||
| 140 : | MACROBLOCK *const pMBs, // [output] average motion vectors | ||
| 141 : | IMAGE *const pGMC); // [output] full warped image | ||
| 142 : |
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