libmpcodecs/vf_test.c

   1 /*
   2     Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at>
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17 */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22 #include <inttypes.h>
  23
  24 #include "../config.h"
  25 #include "../mp_msg.h"
  26
  27 #include "img_format.h"
  28 #include "mp_image.h"
  29 #include "vf.h"
  30
  31 #include "../libvo/fastmemcpy.h"
  32
  33 //===========================================================================//
  34
  35 #include <inttypes.h>
  36 #include <math.h>
  37
  38 #define MAX(a,b) ((a) > (b) ? (a) : (b))
  39 #define MIN(a,b) ((a) < (b) ? (a) : (b))
  40 #define ABS(a,b) ((a) > 0 ? (a) : -(a))
  41
  42 #define WIDTH 512
  43 #define HEIGHT 512
  44
  45 struct vf_priv_s {
  46     int frame_num;
  47 };
  48
  49 static int config(struct vf_instance_s* vf,
  50         int width, int height, int d_width, int d_height,
  51         unsigned int flags, unsigned int outfmt){
  52
  53     if(vf_next_query_format(vf,IMGFMT_YV12)<=0){
  54         printf("yv12 not supported by next filter/vo :(\n");
  55         return 0;
  56     }
  57
  58     //hmm whats the meaning of these ... ;)
  59     d_width= width= WIDTH;
  60     d_height= height= HEIGHT;
  61
  62     return vf_next_config(vf,width,height,d_width,d_height,flags,IMGFMT_YV12);
  63 }
  64
  65 static double c[64];
  66
  67 static void initIdct()
  68 {
  69         int i;
  70
  71         for (i=0; i<8; i++)
  72         {
  73                 double s= i==0 ? sqrt(0.125) : 0.5;
  74                 int j;
  75
  76                 for(j=0; j<8; j++)
  77                         c[i*8+j]= s*cos((3.141592654/8.0)*i*(j+0.5));
  78         }
  79 }
  80
  81
  82 static void idct(uint8_t *dst, int dstStride, int src[64])
  83 {
  84         int i, j, k;
  85         double tmp[64];
  86
  87         for(i=0; i<8; i++)
  88         {
  89                 for(j=0; j<8; j++)
  90                 {
  91                         double sum= 0.0;
  92
  93                         for(k=0; k<8; k++)
  94                                 sum+= c[k*8+j]*src[8*i+k];
  95
  96                         tmp[8*i+j]= sum;
  97                 }
  98         }
  99
 100         for(j=0; j<8; j++)
 101         {
 102                 for(i=0; i<8; i++)
 103                 {
 104                         int v;
 105                         double sum= 0.0;
 106
 107                         for(k=0; k<8; k++)
 108                                 sum+= c[k*8+i]*tmp[8*k+j];
 109
 110                         v= (int)floor(sum+0.5);
 111                         if(v<0) v=0;
 112                         else if(v>255) v=255;
 113
 114                         dst[dstStride*i + j] = v;
 115                 }
 116         }
 117 }
 118
 119 static void drawDc(uint8_t *dst, int stride, int color, int w, int h)
 120 {
 121         int y;
 122         for(y=0; y<h; y++)
 123         {
 124                 int x;
 125                 for(x=0; x<w; x++)
 126                 {
 127                         dst[x + y*stride]= color;
 128                 }
 129         }
 130 }
 131
 132 static void drawBasis(uint8_t *dst, int stride, int amp, int freq, int dc)
 133 {
 134         int src[64];
 135
 136         memset(src, 0, 64*sizeof(int));
 137         src[0]= dc;
 138         if(amp) src[freq]= amp;
 139         idct(dst, stride, src);
 140 }
 141
 142 static void drawCbp(uint8_t *dst[3], int stride[3], int cbp, int amp, int dc)
 143 {
 144         if(cbp&1) drawBasis(dst[0]              , stride[0], amp, 1, dc);
 145         if(cbp&2) drawBasis(dst[0]+8            , stride[0], amp, 1, dc);
 146         if(cbp&4) drawBasis(dst[0]+  8*stride[0], stride[0], amp, 1, dc);
 147         if(cbp&8) drawBasis(dst[0]+8+8*stride[0], stride[0], amp, 1, dc);
 148         if(cbp&16)drawBasis(dst[1]              , stride[1], amp, 1, dc);
 149         if(cbp&32)drawBasis(dst[2]              , stride[2], amp, 1, dc);
 150 }
 151
 152 static void dc1Test(uint8_t *dst, int stride, int w, int h, int off)
 153 {
 154         const int step= MAX(256/(w*h/256), 1);
 155         int y;
 156         int color=off;
 157         for(y=0; y<h; y+=16)
 158         {
 159                 int x;
 160                 for(x=0; x<w; x+=16)
 161                 {
 162                         drawDc(dst + x + y*stride, stride, color, 8, 8);
 163                         color+=step;
 164                 }
 165         }
 166 }
 167
 168 static void freq1Test(uint8_t *dst, int stride, int off)
 169 {
 170         int y;
 171         int freq=0;
 172         for(y=0; y<8*16; y+=16)
 173         {
 174                 int x;
 175                 for(x=0; x<8*16; x+=16)
 176                 {
 177                         drawBasis(dst + x + y*stride, stride, 4*(96+off), freq, 128*8);
 178                         freq++;
 179                 }
 180         }
 181 }
 182
 183 static void amp1Test(uint8_t *dst, int stride, int off)
 184 {
 185         int y;
 186         int amp=off;
 187         for(y=0; y<16*16; y+=16)
 188         {
 189                 int x;
 190                 for(x=0; x<16*16; x+=16)
 191                 {
 192                         drawBasis(dst + x + y*stride, stride, 4*(amp), 1, 128*8);
 193                         amp++;
 194                 }
 195         }
 196 }
 197
 198 static void cbp1Test(uint8_t *dst[3], int stride[3], int off)
 199 {
 200         int y;
 201         int cbp=0;
 202         for(y=0; y<16*8; y+=16)
 203         {
 204                 int x;
 205                 for(x=0; x<16*8; x+=16)
 206                 {
 207                         uint8_t *dst1[3];
 208                         dst1[0]= dst[0] + x*2 + y*2*stride[0];
 209                         dst1[1]= dst[1] + x + y*stride[1];
 210                         dst1[2]= dst[2] + x + y*stride[2];
 211
 212                         drawCbp(dst1, stride, cbp, (64+off)*4, 128*8);
 213                         cbp++;
 214                 }
 215         }
 216 }
 217
 218 static void mv1Test(uint8_t *dst, int stride, int off)
 219 {
 220         int y;
 221         for(y=0; y<16*16; y++)
 222         {
 223                 int x;
 224                 if(y&16) continue;
 225                 for(x=0; x<16*16; x++)
 226                 {
 227                         dst[x + y*stride]= x + off*8/(y/32+1);
 228                 }
 229         }
 230 }
 231
 232 static void ring1Test(uint8_t *dst, int stride, int off)
 233 {
 234         int y;
 235         int color=0;
 236         for(y=off; y<16*16; y+=16)
 237         {
 238                 int x;
 239                 for(x=off; x<16*16; x+=16)
 240                 {
 241                         drawDc(dst + x + y*stride, stride, ((x+y)&16) ? color : -color, 16, 16);
 242 //                      dst[x + y*stride]= 255 + (off&1);
 243                         color++;
 244                 }
 245         }
 246 }
 247
 248 static void ring2Test(uint8_t *dst, int stride, int off)
 249 {
 250         int y;
 251         for(y=0; y<16*16; y++)
 252         {
 253                 int x;
 254                 for(x=0; x<16*16; x++)
 255                 {
 256                         double d= sqrt((x-8*16)*(x-8*16) + (y-8*16)*(y-8*16));
 257                         double r= d/20 - (int)(d/20);
 258                         if(r<off/30.0)
 259                         {
 260                                 dst[x + y*stride]= 255;
 261                                 dst[x + y*stride+256]= 0;
 262                         }
 263                         else{
 264                                 dst[x + y*stride]= x;
 265                                 dst[x + y*stride+256]= x;
 266                         }
 267                 }
 268         }
 269 }
 270
 271 static int put_image(struct vf_instance_s* vf, mp_image_t *mpi){
 272     mp_image_t *dmpi;
 273     int frame= vf->priv->frame_num;
 274
 275     // hope we'll get DR buffer:
 276     dmpi=vf_get_image(vf->next,IMGFMT_YV12,
 277         MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
 278         WIDTH, HEIGHT);
 279
 280     // clean
 281     memset(dmpi->planes[0], 0, dmpi->stride[0]*dmpi->h);
 282     memset(dmpi->planes[1], 128, dmpi->stride[1]*dmpi->h>>dmpi->chroma_y_shift);
 283     memset(dmpi->planes[2], 128, dmpi->stride[2]*dmpi->h>>dmpi->chroma_y_shift);
 284
 285     if(frame%30)
 286     {
 287         switch(frame/30)
 288         {
 289         case 0:   dc1Test(dmpi->planes[0], dmpi->stride[0], 256, 256, frame%30); break;
 290         case 1:   dc1Test(dmpi->planes[1], dmpi->stride[1], 256, 256, frame%30); break;
 291         case 2: freq1Test(dmpi->planes[0], dmpi->stride[0], frame%30); break;
 292         case 3: freq1Test(dmpi->planes[1], dmpi->stride[1], frame%30); break;
 293         case 4:  amp1Test(dmpi->planes[0], dmpi->stride[0], frame%30); break;
 294         case 5:  amp1Test(dmpi->planes[1], dmpi->stride[1], frame%30); break;
 295         case 6:  cbp1Test(dmpi->planes   , dmpi->stride   , frame%30); break;
 296         case 7:   mv1Test(dmpi->planes[0], dmpi->stride[0], frame%30); break;
 297         case 8: ring1Test(dmpi->planes[0], dmpi->stride[0], frame%30); break;
 298         case 9: ring2Test(dmpi->planes[0], dmpi->stride[0], frame%30); break;
 299         }
 300     }
 301
 302     frame++;
 303     vf->priv->frame_num= frame;
 304     return vf_next_put_image(vf,dmpi);
 305 }
 306
 307 //===========================================================================//
 308
 309 static int query_format(struct vf_instance_s* vf, unsigned int fmt){
 310     return vf_next_query_format(vf,IMGFMT_YV12) & (~VFCAP_CSP_SUPPORTED_BY_HW);
 311 }
 312
 313 static int open(vf_instance_t *vf, char* args){
 314     vf->config=config;
 315     vf->put_image=put_image;
 316     vf->query_format=query_format;
 317     vf->priv=malloc(sizeof(struct vf_priv_s));
 318     vf->priv->frame_num= args ? atoi(args) : 0;
 319     initIdct();
 320     return 1;
 321 }
 322
 323 vf_info_t vf_info_test = {
 324     "test pattern generator",
 325     "test",
 326     "Michael Niedermayer",
 327     "",
 328     open,
 329     NULL
 330 };
 331
 332 //===========================================================================//