2 * Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of MPlayer.
6 * MPlayer is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * MPlayer is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
30 #include "img_format.h"
34 //===========================================================================//
39 #define MAX(a,b) ((a) > (b) ? (a) : (b))
40 #define MIN(a,b) ((a) < (b) ? (a) : (b))
41 #define ABS(a,b) ((a) > 0 ? (a) : -(a))
50 static int config(struct vf_instance *vf,
51 int width, int height, int d_width, int d_height,
52 unsigned int flags, unsigned int outfmt){
54 if(vf_next_query_format(vf,IMGFMT_YV12)<=0){
55 mp_msg(MSGT_VFILTER, MSGL_WARN, MSGTR_MPCODECS_WarnNextFilterDoesntSupport, "YV12");
59 //hmm whats the meaning of these ... ;)
60 d_width= width= WIDTH;
61 d_height= height= HEIGHT;
63 return vf_next_config(vf,width,height,d_width,d_height,flags,IMGFMT_YV12);
68 static void initIdct(void)
74 double s= i==0 ? sqrt(0.125) : 0.5;
78 c[i*8+j]= s*cos((3.141592654/8.0)*i*(j+0.5));
83 static void idct(uint8_t *dst, int dstStride, int src[64])
95 sum+= c[k*8+j]*src[8*i+k];
109 sum+= c[k*8+i]*tmp[8*k+j];
111 v= (int)floor(sum+0.5);
113 else if(v>255) v=255;
115 dst[dstStride*i + j] = v;
120 static void drawDc(uint8_t *dst, int stride, int color, int w, int h)
128 dst[x + y*stride]= color;
133 static void drawBasis(uint8_t *dst, int stride, int amp, int freq, int dc)
137 memset(src, 0, 64*sizeof(int));
139 if(amp) src[freq]= amp;
140 idct(dst, stride, src);
143 static void drawCbp(uint8_t *dst[3], int stride[3], int cbp, int amp, int dc)
145 if(cbp&1) drawBasis(dst[0] , stride[0], amp, 1, dc);
146 if(cbp&2) drawBasis(dst[0]+8 , stride[0], amp, 1, dc);
147 if(cbp&4) drawBasis(dst[0]+ 8*stride[0], stride[0], amp, 1, dc);
148 if(cbp&8) drawBasis(dst[0]+8+8*stride[0], stride[0], amp, 1, dc);
149 if(cbp&16)drawBasis(dst[1] , stride[1], amp, 1, dc);
150 if(cbp&32)drawBasis(dst[2] , stride[2], amp, 1, dc);
153 static void dc1Test(uint8_t *dst, int stride, int w, int h, int off)
155 const int step= MAX(256/(w*h/256), 1);
163 drawDc(dst + x + y*stride, stride, color, 8, 8);
169 static void freq1Test(uint8_t *dst, int stride, int off)
173 for(y=0; y<8*16; y+=16)
176 for(x=0; x<8*16; x+=16)
178 drawBasis(dst + x + y*stride, stride, 4*(96+off), freq, 128*8);
184 static void amp1Test(uint8_t *dst, int stride, int off)
188 for(y=0; y<16*16; y+=16)
191 for(x=0; x<16*16; x+=16)
193 drawBasis(dst + x + y*stride, stride, 4*(amp), 1, 128*8);
199 static void cbp1Test(uint8_t *dst[3], int stride[3], int off)
203 for(y=0; y<16*8; y+=16)
206 for(x=0; x<16*8; x+=16)
209 dst1[0]= dst[0] + x*2 + y*2*stride[0];
210 dst1[1]= dst[1] + x + y*stride[1];
211 dst1[2]= dst[2] + x + y*stride[2];
213 drawCbp(dst1, stride, cbp, (64+off)*4, 128*8);
219 static void mv1Test(uint8_t *dst, int stride, int off)
222 for(y=0; y<16*16; y++)
226 for(x=0; x<16*16; x++)
228 dst[x + y*stride]= x + off*8/(y/32+1);
233 static void ring1Test(uint8_t *dst, int stride, int off)
237 for(y=off; y<16*16; y+=16)
240 for(x=off; x<16*16; x+=16)
242 drawDc(dst + x + y*stride, stride, ((x+y)&16) ? color : -color, 16, 16);
243 // dst[x + y*stride]= 255 + (off&1);
249 static void ring2Test(uint8_t *dst, int stride, int off)
252 for(y=0; y<16*16; y++)
255 for(x=0; x<16*16; x++)
257 double d= sqrt((x-8*16)*(x-8*16) + (y-8*16)*(y-8*16));
258 double r= d/20 - (int)(d/20);
261 dst[x + y*stride]= 255;
262 dst[x + y*stride+256]= 0;
265 dst[x + y*stride]= x;
266 dst[x + y*stride+256]= x;
272 static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
274 int frame= vf->priv->frame_num;
276 // hope we'll get DR buffer:
277 dmpi=vf_get_image(vf->next,IMGFMT_YV12,
278 MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
282 memset(dmpi->planes[0], 0, dmpi->stride[0]*dmpi->h);
283 memset(dmpi->planes[1], 128, dmpi->stride[1]*dmpi->h>>dmpi->chroma_y_shift);
284 memset(dmpi->planes[2], 128, dmpi->stride[2]*dmpi->h>>dmpi->chroma_y_shift);
290 case 0: dc1Test(dmpi->planes[0], dmpi->stride[0], 256, 256, frame%30); break;
291 case 1: dc1Test(dmpi->planes[1], dmpi->stride[1], 256, 256, frame%30); break;
292 case 2: freq1Test(dmpi->planes[0], dmpi->stride[0], frame%30); break;
293 case 3: freq1Test(dmpi->planes[1], dmpi->stride[1], frame%30); break;
294 case 4: amp1Test(dmpi->planes[0], dmpi->stride[0], frame%30); break;
295 case 5: amp1Test(dmpi->planes[1], dmpi->stride[1], frame%30); break;
296 case 6: cbp1Test(dmpi->planes , dmpi->stride , frame%30); break;
297 case 7: mv1Test(dmpi->planes[0], dmpi->stride[0], frame%30); break;
298 case 8: ring1Test(dmpi->planes[0], dmpi->stride[0], frame%30); break;
299 case 9: ring2Test(dmpi->planes[0], dmpi->stride[0], frame%30); break;
304 vf->priv->frame_num= frame;
305 return vf_next_put_image(vf,dmpi, pts);
308 //===========================================================================//
310 static int query_format(struct vf_instance *vf, unsigned int fmt){
311 return vf_next_query_format(vf,IMGFMT_YV12) & (~VFCAP_CSP_SUPPORTED_BY_HW);
314 static int vf_open(vf_instance_t *vf, char *args){
316 vf->put_image=put_image;
317 vf->query_format=query_format;
318 vf->priv=malloc(sizeof(struct vf_priv_s));
319 vf->priv->frame_num= args ? atoi(args) : 0;
324 const vf_info_t vf_info_test = {
325 "test pattern generator",
327 "Michael Niedermayer",
333 //===========================================================================//