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| 1 : | chl | 1.6 | /***************************************************************************** |
| 2 : | * | ||
| 3 : | * XVID MPEG-4 VIDEO CODEC | ||
| 4 : | * - 8x8 block-based halfpel interpolation - headers | ||
| 5 : | * | ||
| 6 : | * Copyright(C) 2002 Peter Ross <pross@xvid.org> | ||
| 7 : | * | ||
| 8 : | edgomez | 1.7 | * This file is part of XviD, a free MPEG-4 video encoder/decoder |
| 9 : | chl | 1.6 | * |
| 10 : | edgomez | 1.7 | * XviD is free software; you can redistribute it and/or modify it |
| 11 : | * under the terms of the GNU General Public License as published by | ||
| 12 : | chl | 1.6 | * the Free Software Foundation; either version 2 of the License, or |
| 13 : | * (at your option) any later version. | ||
| 14 : | * | ||
| 15 : | * This program is distributed in the hope that it will be useful, | ||
| 16 : | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 17 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 18 : | * GNU General Public License for more details. | ||
| 19 : | * | ||
| 20 : | * You should have received a copy of the GNU General Public License | ||
| 21 : | * along with this program; if not, write to the Free Software | ||
| 22 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 23 : | edgomez | 1.7 | * |
| 24 : | * Under section 8 of the GNU General Public License, the copyright | ||
| 25 : | * holders of XVID explicitly forbid distribution in the following | ||
| 26 : | * countries: | ||
| 27 : | * | ||
| 28 : | * - Japan | ||
| 29 : | * - United States of America | ||
| 30 : | * | ||
| 31 : | * Linking XviD statically or dynamically with other modules is making a | ||
| 32 : | * combined work based on XviD. Thus, the terms and conditions of the | ||
| 33 : | * GNU General Public License cover the whole combination. | ||
| 34 : | * | ||
| 35 : | * As a special exception, the copyright holders of XviD give you | ||
| 36 : | * permission to link XviD with independent modules that communicate with | ||
| 37 : | * XviD solely through the VFW1.1 and DShow interfaces, regardless of the | ||
| 38 : | * license terms of these independent modules, and to copy and distribute | ||
| 39 : | * the resulting combined work under terms of your choice, provided that | ||
| 40 : | * every copy of the combined work is accompanied by a complete copy of | ||
| 41 : | * the source code of XviD (the version of XviD used to produce the | ||
| 42 : | * combined work), being distributed under the terms of the GNU General | ||
| 43 : | * Public License plus this exception. An independent module is a module | ||
| 44 : | * which is not derived from or based on XviD. | ||
| 45 : | * | ||
| 46 : | * Note that people who make modified versions of XviD are not obligated | ||
| 47 : | * to grant this special exception for their modified versions; it is | ||
| 48 : | * their choice whether to do so. The GNU General Public License gives | ||
| 49 : | * permission to release a modified version without this exception; this | ||
| 50 : | * exception also makes it possible to release a modified version which | ||
| 51 : | * carries forward this exception. | ||
| 52 : | * | ||
| 53 : | edgomez | 1.9 | * $Id: interpolate8x8.h,v 1.8 2002/11/26 23:44:10 edgomez Exp $ |
| 54 : | chl | 1.6 | * |
| 55 : | ****************************************************************************/ | ||
| 56 : | |||
| 57 : | Isibaar | 1.1 | #include "../utils/mem_transfer.h" |
| 58 : | |||
| 59 : | edgomez | 1.3 | typedef void (INTERPOLATE8X8) (uint8_t * const dst, |
| 60 : | const uint8_t * const src, | ||
| 61 : | const uint32_t stride, | ||
| 62 : | const uint32_t rounding); | ||
| 63 : | typedef INTERPOLATE8X8 *INTERPOLATE8X8_PTR; | ||
| 64 : | Isibaar | 1.1 | |
| 65 : | extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_h; | ||
| 66 : | extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_v; | ||
| 67 : | extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_hv; | ||
| 68 : | |||
| 69 : | INTERPOLATE8X8 interpolate8x8_halfpel_h_c; | ||
| 70 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_c; | ||
| 71 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_c; | ||
| 72 : | |||
| 73 : | INTERPOLATE8X8 interpolate8x8_halfpel_h_mmx; | ||
| 74 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_mmx; | ||
| 75 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_mmx; | ||
| 76 : | |||
| 77 : | INTERPOLATE8X8 interpolate8x8_halfpel_h_xmm; | ||
| 78 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_xmm; | ||
| 79 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_xmm; | ||
| 80 : | |||
| 81 : | INTERPOLATE8X8 interpolate8x8_halfpel_h_3dn; | ||
| 82 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_3dn; | ||
| 83 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_3dn; | ||
| 84 : | |||
| 85 : | Isibaar | 1.4 | INTERPOLATE8X8 interpolate8x8_halfpel_h_ia64; |
| 86 : | INTERPOLATE8X8 interpolate8x8_halfpel_v_ia64; | ||
| 87 : | INTERPOLATE8X8 interpolate8x8_halfpel_hv_ia64; | ||
| 88 : | |||
| 89 : | Isibaar | 1.5 | void interpolate8x8_c(uint8_t * const dst, |
| 90 : | const uint8_t * const src, | ||
| 91 : | const uint32_t x, | ||
| 92 : | const uint32_t y, | ||
| 93 : | const uint32_t stride); | ||
| 94 : | |||
| 95 : | edgomez | 1.3 | static __inline void |
| 96 : | interpolate8x8_switch(uint8_t * const cur, | ||
| 97 : | const uint8_t * const refn, | ||
| 98 : | const uint32_t x, | ||
| 99 : | const uint32_t y, | ||
| 100 : | const int32_t dx, | ||
| 101 : | const int dy, | ||
| 102 : | const uint32_t stride, | ||
| 103 : | const uint32_t rounding) | ||
| 104 : | Isibaar | 1.1 | { |
| 105 : | int32_t ddx, ddy; | ||
| 106 : | |||
| 107 : | edgomez | 1.8 | switch (((dx & 1) << 1) + (dy & 1)) /* ((dx%2)?2:0)+((dy%2)?1:0) */ |
| 108 : | edgomez | 1.3 | { |
| 109 : | case 0: | ||
| 110 : | ddx = dx / 2; | ||
| 111 : | ddy = dy / 2; | ||
| 112 : | transfer8x8_copy(cur + y * stride + x, | ||
| 113 : | Isibaar | 1.4 | refn + (int)((y + ddy) * stride + x + ddx), stride); |
| 114 : | Isibaar | 1.1 | break; |
| 115 : | |||
| 116 : | edgomez | 1.3 | case 1: |
| 117 : | ddx = dx / 2; | ||
| 118 : | ddy = (dy - 1) / 2; | ||
| 119 : | interpolate8x8_halfpel_v(cur + y * stride + x, | ||
| 120 : | Isibaar | 1.4 | refn + (int)((y + ddy) * stride + x + ddx), stride, |
| 121 : | edgomez | 1.3 | rounding); |
| 122 : | Isibaar | 1.1 | break; |
| 123 : | |||
| 124 : | edgomez | 1.3 | case 2: |
| 125 : | ddx = (dx - 1) / 2; | ||
| 126 : | ddy = dy / 2; | ||
| 127 : | interpolate8x8_halfpel_h(cur + y * stride + x, | ||
| 128 : | Isibaar | 1.4 | refn + (int)((y + ddy) * stride + x + ddx), stride, |
| 129 : | edgomez | 1.3 | rounding); |
| 130 : | Isibaar | 1.1 | break; |
| 131 : | |||
| 132 : | edgomez | 1.3 | default: |
| 133 : | ddx = (dx - 1) / 2; | ||
| 134 : | ddy = (dy - 1) / 2; | ||
| 135 : | interpolate8x8_halfpel_hv(cur + y * stride + x, | ||
| 136 : | Isibaar | 1.4 | refn + (int)((y + ddy) * stride + x + ddx), stride, |
| 137 : | edgomez | 1.3 | rounding); |
| 138 : | Isibaar | 1.1 | break; |
| 139 : | edgomez | 1.3 | } |
| 140 : | Isibaar | 1.1 | } |
| 141 : | chenm001 | 1.2 |
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