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libavcodec/bfin/dsputil_bfin.c

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00001 /*
00002  * BlackFin DSPUTILS
00003  *
00004  * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
00005  * Copyright (c) 2006 Michael Benjamin <michael.benjamin@analog.com>
00006  *
00007  * This file is part of FFmpeg.
00008  *
00009  * FFmpeg is free software; you can redistribute it and/or
00010  * modify it under the terms of the GNU Lesser General Public
00011  * License as published by the Free Software Foundation; either
00012  * version 2.1 of the License, or (at your option) any later version.
00013  *
00014  * FFmpeg is distributed in the hope that it will be useful,
00015  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00016  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00017  * Lesser General Public License for more details.
00018  *
00019  * You should have received a copy of the GNU Lesser General Public
00020  * License along with FFmpeg; if not, write to the Free Software
00021  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00022  */
00023 
00024 #include "libavcodec/avcodec.h"
00025 #include "libavcodec/dsputil.h"
00026 #include "dsputil_bfin.h"
00027 
00028 int off;
00029 
00030 static void bfin_idct_add (uint8_t *dest, int line_size, DCTELEM *block)
00031 {
00032     ff_bfin_idct (block);
00033     ff_bfin_add_pixels_clamped (block, dest, line_size);
00034 }
00035 
00036 static void bfin_idct_put (uint8_t *dest, int line_size, DCTELEM *block)
00037 {
00038     ff_bfin_idct (block);
00039     ff_bfin_put_pixels_clamped (block, dest, line_size);
00040 }
00041 
00042 
00043 static void bfin_clear_blocks (DCTELEM *blocks)
00044 {
00045     // This is just a simple memset.
00046     //
00047     __asm__("P0=192; "
00048         "I0=%0;  "
00049         "R0=0;   "
00050         "LSETUP(clear_blocks_blkfn_lab,clear_blocks_blkfn_lab)LC0=P0;"
00051         "clear_blocks_blkfn_lab:"
00052         "[I0++]=R0;"
00053         ::"a" (blocks):"P0","I0","R0");
00054 }
00055 
00056 
00057 
00058 static void bfin_put_pixels8 (uint8_t *block, const uint8_t *pixels, int line_size, int h)
00059 {
00060     ff_bfin_put_pixels8uc (block, pixels, pixels, line_size, line_size, h);
00061 }
00062 
00063 static void bfin_put_pixels8_x2(uint8_t *block, const uint8_t *pixels, int line_size, int h)
00064 {
00065     ff_bfin_put_pixels8uc (block, pixels, pixels+1, line_size, line_size, h);
00066 }
00067 
00068 static void bfin_put_pixels8_y2 (uint8_t *block, const uint8_t *pixels, int line_size, int h)
00069 {
00070     ff_bfin_put_pixels8uc (block, pixels, pixels+line_size, line_size, line_size, h);
00071 }
00072 
00073 static void bfin_put_pixels8_xy2 (uint8_t *block, const uint8_t *s0, int line_size, int h)
00074 {
00075     ff_bfin_z_put_pixels8_xy2 (block,s0,line_size, line_size, h);
00076 }
00077 
00078 static void bfin_put_pixels16 (uint8_t *block, const uint8_t *pixels, int line_size, int h)
00079 {
00080     ff_bfin_put_pixels16uc (block, pixels, pixels, line_size, line_size, h);
00081 }
00082 
00083 static void bfin_put_pixels16_x2 (uint8_t *block, const uint8_t *pixels, int line_size, int h)
00084 {
00085     ff_bfin_put_pixels16uc (block, pixels, pixels+1, line_size, line_size, h);
00086 }
00087 
00088 static void bfin_put_pixels16_y2 (uint8_t *block, const uint8_t *pixels, int line_size, int h)
00089 {
00090     ff_bfin_put_pixels16uc (block, pixels, pixels+line_size, line_size, line_size, h);
00091 }
00092 
00093 static void bfin_put_pixels16_xy2 (uint8_t *block, const uint8_t *s0, int line_size, int h)
00094 {
00095     ff_bfin_z_put_pixels16_xy2 (block,s0,line_size, line_size, h);
00096 }
00097 
00098 static void bfin_put_pixels8_nornd (uint8_t *block, const uint8_t *pixels, int line_size, int h)
00099 {
00100     ff_bfin_put_pixels8uc_nornd (block, pixels, pixels, line_size, h);
00101 }
00102 
00103 static void bfin_put_pixels8_x2_nornd (uint8_t *block, const uint8_t *pixels, int line_size, int h)
00104 {
00105     ff_bfin_put_pixels8uc_nornd (block, pixels, pixels+1, line_size, h);
00106 }
00107 
00108 static void bfin_put_pixels8_y2_nornd (uint8_t *block, const uint8_t *pixels, int line_size, int h)
00109 {
00110     ff_bfin_put_pixels8uc_nornd (block, pixels, pixels+line_size, line_size, h);
00111 }
00112 
00113 
00114 static void bfin_put_pixels16_nornd (uint8_t *block, const uint8_t *pixels, int line_size, int h)
00115 {
00116     ff_bfin_put_pixels16uc_nornd (block, pixels, pixels, line_size, h);
00117 }
00118 
00119 static void bfin_put_pixels16_x2_nornd (uint8_t *block, const uint8_t *pixels, int line_size, int h)
00120 {
00121     ff_bfin_put_pixels16uc_nornd (block, pixels, pixels+1, line_size, h);
00122 }
00123 
00124 static void bfin_put_pixels16_y2_nornd (uint8_t *block, const uint8_t *pixels, int line_size, int h)
00125 {
00126     ff_bfin_put_pixels16uc_nornd (block, pixels, pixels+line_size, line_size, h);
00127 }
00128 
00129 static int bfin_pix_abs16 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
00130 {
00131     return ff_bfin_z_sad16x16 (blk1,blk2,line_size,line_size,h);
00132 }
00133 
00134 static int bfin_vsad_intra16 (void *c, uint8_t *blk1, uint8_t *dummy, int stride, int h) {
00135     return ff_bfin_z_sad16x16 (blk1,blk1+stride,stride<<1,stride<<1,h);
00136 }
00137 
00138 static int bfin_vsad (void *c, uint8_t *blk1, uint8_t *blk2, int stride, int h) {
00139     return ff_bfin_z_sad16x16 (blk1,blk1+stride,stride<<1,stride<<1,h)
00140         + ff_bfin_z_sad16x16 (blk2,blk2+stride,stride<<1,stride<<1,h);
00141 }
00142 
00143 static uint8_t vtmp_blk[256] attribute_l1_data_b;
00144 
00145 static int bfin_pix_abs16_x2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
00146 {
00147     ff_bfin_put_pixels16uc (vtmp_blk, blk2, blk2+1, 16, line_size, h);
00148     return ff_bfin_z_sad16x16 (blk1, vtmp_blk, line_size, 16, h);
00149 }
00150 
00151 static int bfin_pix_abs16_y2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
00152 {
00153     ff_bfin_put_pixels16uc (vtmp_blk, blk2, blk2+line_size, 16, line_size, h);
00154     return ff_bfin_z_sad16x16 (blk1, vtmp_blk, line_size, 16, h);
00155 }
00156 
00157 static int bfin_pix_abs16_xy2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
00158 {
00159     ff_bfin_z_put_pixels16_xy2 (vtmp_blk, blk2, 16, line_size, h);
00160     return ff_bfin_z_sad16x16 (blk1, vtmp_blk, line_size, 16, h);
00161 }
00162 
00163 static int bfin_pix_abs8 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
00164 {
00165     return ff_bfin_z_sad8x8 (blk1,blk2,line_size,line_size, h);
00166 }
00167 
00168 static int bfin_pix_abs8_x2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
00169 {
00170     ff_bfin_put_pixels8uc (vtmp_blk, blk2, blk2+1, 8, line_size, h);
00171     return ff_bfin_z_sad8x8 (blk1, vtmp_blk, line_size, 8, h);
00172 }
00173 
00174 static int bfin_pix_abs8_y2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
00175 {
00176     ff_bfin_put_pixels8uc (vtmp_blk, blk2, blk2+line_size, 8, line_size, h);
00177     return ff_bfin_z_sad8x8 (blk1, vtmp_blk, line_size, 8, h);
00178 }
00179 
00180 static int bfin_pix_abs8_xy2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
00181 {
00182     ff_bfin_z_put_pixels8_xy2 (vtmp_blk, blk2, 8, line_size, h);
00183     return ff_bfin_z_sad8x8 (blk1, vtmp_blk, line_size, 8, h);
00184 }
00185 
00186 
00187 /*
00188   decoder optimization
00189   start on 2/11 100 frames of 352x240@25 compiled with no optimization -g debugging
00190   9.824s ~ 2.44x off
00191   6.360s ~ 1.58x off with -O2
00192   5.740s ~ 1.43x off with idcts
00193 
00194   2.64s    2/20 same sman.mp4 decode only
00195 
00196 */
00197 
00198 void dsputil_init_bfin( DSPContext* c, AVCodecContext *avctx )
00199 {
00200     c->get_pixels         = ff_bfin_get_pixels;
00201     c->diff_pixels        = ff_bfin_diff_pixels;
00202     c->put_pixels_clamped = ff_bfin_put_pixels_clamped;
00203     c->add_pixels_clamped = ff_bfin_add_pixels_clamped;
00204 
00205     c->clear_blocks       = bfin_clear_blocks;
00206     c->pix_sum            = ff_bfin_pix_sum;
00207     c->pix_norm1          = ff_bfin_pix_norm1;
00208 
00209     c->sad[0]             = bfin_pix_abs16;
00210     c->sad[1]             = bfin_pix_abs8;
00211 
00212 /*     c->vsad[0]            = bfin_vsad; */
00213 /*     c->vsad[4]            = bfin_vsad_intra16; */
00214 
00215     /* TODO [0] 16  [1] 8 */
00216     c->pix_abs[0][0] = bfin_pix_abs16;
00217     c->pix_abs[0][1] = bfin_pix_abs16_x2;
00218     c->pix_abs[0][2] = bfin_pix_abs16_y2;
00219     c->pix_abs[0][3] = bfin_pix_abs16_xy2;
00220 
00221     c->pix_abs[1][0] = bfin_pix_abs8;
00222     c->pix_abs[1][1] = bfin_pix_abs8_x2;
00223     c->pix_abs[1][2] = bfin_pix_abs8_y2;
00224     c->pix_abs[1][3] = bfin_pix_abs8_xy2;
00225 
00226 
00227     c->sse[0] = ff_bfin_sse16;
00228     c->sse[1] = ff_bfin_sse8;
00229     c->sse[2] = ff_bfin_sse4;
00230 
00231 
00243     c->put_pixels_tab[0][0] = bfin_put_pixels16;
00244     c->put_pixels_tab[0][1] = bfin_put_pixels16_x2;
00245     c->put_pixels_tab[0][2] = bfin_put_pixels16_y2;
00246     c->put_pixels_tab[0][3] = bfin_put_pixels16_xy2;
00247 
00248     c->put_pixels_tab[1][0] = bfin_put_pixels8;
00249     c->put_pixels_tab[1][1] = bfin_put_pixels8_x2;
00250     c->put_pixels_tab[1][2] = bfin_put_pixels8_y2;
00251     c->put_pixels_tab[1][3] = bfin_put_pixels8_xy2;
00252 
00253     c->put_no_rnd_pixels_tab[1][0] = bfin_put_pixels8_nornd;
00254     c->put_no_rnd_pixels_tab[1][1] = bfin_put_pixels8_x2_nornd;
00255     c->put_no_rnd_pixels_tab[1][2] = bfin_put_pixels8_y2_nornd;
00256 /*     c->put_no_rnd_pixels_tab[1][3] = ff_bfin_put_pixels8_xy2_nornd; */
00257 
00258     c->put_no_rnd_pixels_tab[0][0] = bfin_put_pixels16_nornd;
00259     c->put_no_rnd_pixels_tab[0][1] = bfin_put_pixels16_x2_nornd;
00260     c->put_no_rnd_pixels_tab[0][2] = bfin_put_pixels16_y2_nornd;
00261 /*     c->put_no_rnd_pixels_tab[0][3] = ff_bfin_put_pixels16_xy2_nornd; */
00262 
00263     if (avctx->dct_algo == FF_DCT_AUTO)
00264         c->fdct               = ff_bfin_fdct;
00265 
00266     if (avctx->idct_algo==FF_IDCT_VP3) {
00267         c->idct_permutation_type = FF_NO_IDCT_PERM;
00268         c->idct               = ff_bfin_vp3_idct;
00269         c->idct_add           = ff_bfin_vp3_idct_add;
00270         c->idct_put           = ff_bfin_vp3_idct_put;
00271     } else if (avctx->idct_algo == FF_IDCT_AUTO) {
00272         c->idct_permutation_type = FF_NO_IDCT_PERM;
00273         c->idct               = ff_bfin_idct;
00274         c->idct_add           = bfin_idct_add;
00275         c->idct_put           = bfin_idct_put;
00276     }
00277 }
00278 
00279 
00280 

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