--- interpolate8x8.h 2002/03/08 02:44:46 1.1 +++ interpolate8x8.h 2002/11/26 23:44:10 1.8 @@ -1,10 +1,66 @@ +/***************************************************************************** + * + * XVID MPEG-4 VIDEO CODEC + * - 8x8 block-based halfpel interpolation - headers + * + * Copyright(C) 2002 Peter Ross + * + * This file is part of XviD, a free MPEG-4 video encoder/decoder + * + * XviD 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. + * + * This program 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 this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Under section 8 of the GNU General Public License, the copyright + * holders of XVID explicitly forbid distribution in the following + * countries: + * + * - Japan + * - United States of America + * + * Linking XviD statically or dynamically with other modules is making a + * combined work based on XviD. Thus, the terms and conditions of the + * GNU General Public License cover the whole combination. + * + * As a special exception, the copyright holders of XviD give you + * permission to link XviD with independent modules that communicate with + * XviD solely through the VFW1.1 and DShow interfaces, regardless of the + * license terms of these independent modules, and to copy and distribute + * the resulting combined work under terms of your choice, provided that + * every copy of the combined work is accompanied by a complete copy of + * the source code of XviD (the version of XviD used to produce the + * combined work), being distributed under the terms of the GNU General + * Public License plus this exception. An independent module is a module + * which is not derived from or based on XviD. + * + * Note that people who make modified versions of XviD are not obligated + * to grant this special exception for their modified versions; it is + * their choice whether to do so. The GNU General Public License gives + * permission to release a modified version without this exception; this + * exception also makes it possible to release a modified version which + * carries forward this exception. + * + * $Id: interpolate8x8.h,v 1.8 2002/11/26 23:44:10 edgomez Exp $ + * + ****************************************************************************/ + #include "../utils/mem_transfer.h" -typedef void (INTERPOLATE8X8)(uint8_t * const dst, - const uint8_t * const src, - const uint32_t stride, - const uint32_t rounding); -typedef INTERPOLATE8X8 * INTERPOLATE8X8_PTR; +typedef void (INTERPOLATE8X8) (uint8_t * const dst, + const uint8_t * const src, + const uint32_t stride, + const uint32_t rounding); +typedef INTERPOLATE8X8 *INTERPOLATE8X8_PTR; extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_h; extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_v; @@ -26,42 +82,184 @@ INTERPOLATE8X8 interpolate8x8_halfpel_v_3dn; INTERPOLATE8X8 interpolate8x8_halfpel_hv_3dn; -static __inline void interpolate8x8_switch(uint8_t * const cur, - const uint8_t * const refn, +INTERPOLATE8X8 interpolate8x8_halfpel_h_ia64; +INTERPOLATE8X8 interpolate8x8_halfpel_v_ia64; +INTERPOLATE8X8 interpolate8x8_halfpel_hv_ia64; + +void interpolate8x8_lowpass_h(uint8_t *dst, uint8_t *src, int32_t dst_stride, int32_t src_stride, int32_t rounding); +void interpolate8x8_lowpass_v(uint8_t *dst, uint8_t *src, int32_t dst_stride, int32_t src_stride, int32_t rounding); +void interpolate8x8_lowpass_hv(uint8_t *dst1, uint8_t *dst2, uint8_t *src, int32_t dst1_stride, int32_t dst2_stride, int32_t src_stride, int32_t rounding); +void interpolate8x8_bilinear2(uint8_t *dst, uint8_t *src1, uint8_t *src2, int32_t dst_stride, int32_t src_stride, int32_t rounding); +void interpolate8x8_bilinear4(uint8_t *dst, uint8_t *src1, uint8_t *src2, uint8_t *src3, uint8_t *src4, int32_t stride, int32_t rounding); + +void interpolate8x8_c(uint8_t * const dst, + const uint8_t * const src, + const uint32_t x, + const uint32_t y, + const uint32_t stride); + +static __inline void +interpolate8x8_switch(uint8_t * const cur, + const uint8_t * const refn, + const uint32_t x, + const uint32_t y, + const int32_t dx, + const int dy, + const uint32_t stride, + const uint32_t rounding) +{ + int32_t ddx, ddy; + + switch (((dx & 1) << 1) + (dy & 1)) /* ((dx%2)?2:0)+((dy%2)?1:0) */ + { + case 0: + ddx = dx / 2; + ddy = dy / 2; + transfer8x8_copy(cur + y * stride + x, + refn + (int)((y + ddy) * stride + x + ddx), stride); + break; + + case 1: + ddx = dx / 2; + ddy = (dy - 1) / 2; + interpolate8x8_halfpel_v(cur + y * stride + x, + refn + (int)((y + ddy) * stride + x + ddx), stride, + rounding); + break; + + case 2: + ddx = (dx - 1) / 2; + ddy = dy / 2; + interpolate8x8_halfpel_h(cur + y * stride + x, + refn + (int)((y + ddy) * stride + x + ddx), stride, + rounding); + break; + + default: + ddx = (dx - 1) / 2; + ddy = (dy - 1) / 2; + interpolate8x8_halfpel_hv(cur + y * stride + x, + refn + (int)((y + ddy) * stride + x + ddx), stride, + rounding); + break; + } +} + + +static __inline void interpolate8x8_quarterpel(uint8_t * const cur, + uint8_t * const refn, const uint32_t x, const uint32_t y, const int32_t dx, const int dy, const uint32_t stride, const uint32_t rounding) { - int32_t ddx, ddy; + const int32_t xRef = x*4 + dx; + const int32_t yRef = y*4 + dy; + + uint8_t *src, *dst; + int32_t x_int, y_int, x_frac, y_frac; + + uint8_t halfpel_h[72]; + uint8_t halfpel_v[64]; + uint8_t halfpel_hv[64]; + + x_int = xRef/4; + if (xRef < 0 && xRef % 4) + x_int--; + + x_frac = xRef - (4*x_int); + + y_int = yRef/4; + if (yRef < 0 && yRef % 4) + y_int--; + + y_frac = yRef - (4*y_int); + + src = refn + y_int * stride + x_int; + dst = cur + y * stride + x; + + switch((y_frac << 2) | (x_frac)) { - switch ( ((dx&1)<<1) + (dy&1) ) // ((dx%2)?2:0)+((dy%2)?1:0) - { - case 0 : - ddx = dx/2; - ddy = dy/2; - transfer8x8_copy(cur + y*stride + x, refn + (y+ddy)*stride + x + ddx, stride); - break; - - case 1 : - ddx = dx/2; - ddy = (dy-1)/2; - interpolate8x8_halfpel_v(cur + y*stride + x, - refn + (y+ddy)*stride + x + ddx, stride, rounding); - break; - - case 2 : - ddx = (dx-1)/2; - ddy = dy/2; - interpolate8x8_halfpel_h(cur + y*stride + x, - refn + (y+ddy)*stride + x + ddx, stride, rounding); - break; - - default : - ddx = (dx-1)/2; - ddy = (dy-1)/2; - interpolate8x8_halfpel_hv(cur + y*stride + x, - refn + (y+ddy)*stride + x + ddx, stride, rounding); + case 0: + transfer8x8_copy(dst, src, stride); + break; + + case 1: + interpolate8x8_lowpass_h(halfpel_h, src, 8, stride, rounding); + interpolate8x8_bilinear2(dst, src, halfpel_h, stride, stride, rounding); + break; + + case 2: + interpolate8x8_lowpass_h(dst, src, stride, stride, rounding); + break; + + case 3: + interpolate8x8_lowpass_h(halfpel_h, src, 8, stride, rounding); + interpolate8x8_bilinear2(dst, src+1, halfpel_h, stride, stride, rounding); + break; + + case 4: + interpolate8x8_lowpass_v(halfpel_v, src, 8, stride, rounding); + interpolate8x8_bilinear2(dst, src, halfpel_v, stride, stride, rounding); + break; + + case 5: + interpolate8x8_lowpass_v(halfpel_v, src, 8, stride, rounding); + interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); + interpolate8x8_bilinear4(dst, src, halfpel_h, halfpel_v, halfpel_hv, stride, rounding); + break; + + case 6: + interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); + interpolate8x8_bilinear2(dst, halfpel_h, halfpel_hv, stride, 8, 1-rounding); + break; + + case 7: + interpolate8x8_lowpass_v(halfpel_v, src+1, 8, stride, 16-rounding); + interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); + interpolate8x8_bilinear4(dst, src+1, halfpel_h, halfpel_v, halfpel_hv, stride, rounding); + break; + + case 8: + interpolate8x8_lowpass_v(dst, src, stride, stride, rounding); + break; + + case 9: + interpolate8x8_lowpass_v(halfpel_v, src, 8, stride, 16-rounding); + interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); + interpolate8x8_bilinear2(dst, halfpel_v, halfpel_hv, stride, 8, rounding); + break; + + case 10: + interpolate8x8_lowpass_hv(dst, halfpel_h, src, stride, 8, stride, rounding); + break; + + case 11: + interpolate8x8_lowpass_v(halfpel_v, src+1, 8, stride, 16-rounding); + interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); + interpolate8x8_bilinear2(dst, halfpel_v, halfpel_hv, stride, 8, rounding); + break; + + case 12: + interpolate8x8_lowpass_v(halfpel_v, src, 8, stride, rounding); + interpolate8x8_bilinear2(dst, src+stride, halfpel_v, stride, stride, rounding); + break; + + case 13: + interpolate8x8_lowpass_v(halfpel_v, src, 8, stride, rounding); + interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); + interpolate8x8_bilinear4(dst, src+stride, halfpel_h+8, halfpel_v, halfpel_hv, stride, rounding); + break; + + case 14: + interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); + interpolate8x8_bilinear2(dst, halfpel_h+8, halfpel_hv, stride, 8, rounding); + break; + + case 15: + interpolate8x8_lowpass_v(halfpel_v, src+1, 8, stride, rounding); + interpolate8x8_lowpass_hv(halfpel_hv, halfpel_h, src, 8, 8, stride, rounding); + interpolate8x8_bilinear4(dst, src+stride+1, halfpel_h+8, halfpel_v, halfpel_hv, stride, rounding); break; - } + } }