/***************************************************************************** * * 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; extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_h; extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_v; extern INTERPOLATE8X8_PTR interpolate8x8_halfpel_hv; INTERPOLATE8X8 interpolate8x8_halfpel_h_c; INTERPOLATE8X8 interpolate8x8_halfpel_v_c; INTERPOLATE8X8 interpolate8x8_halfpel_hv_c; INTERPOLATE8X8 interpolate8x8_halfpel_h_mmx; INTERPOLATE8X8 interpolate8x8_halfpel_v_mmx; INTERPOLATE8X8 interpolate8x8_halfpel_hv_mmx; INTERPOLATE8X8 interpolate8x8_halfpel_h_xmm; INTERPOLATE8X8 interpolate8x8_halfpel_v_xmm; INTERPOLATE8X8 interpolate8x8_halfpel_hv_xmm; INTERPOLATE8X8 interpolate8x8_halfpel_h_3dn; INTERPOLATE8X8 interpolate8x8_halfpel_v_3dn; INTERPOLATE8X8 interpolate8x8_halfpel_hv_3dn; 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) { 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)) { 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; } }