1/* 2 * Copyright (c) 2008-2009 Intel Corporation. All Rights Reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the 6 * "Software"), to deal in the Software without restriction, including 7 * without limitation the rights to use, copy, modify, merge, publish, 8 * distribute, sub license, and/or sell copies of the Software, and to 9 * permit persons to whom the Software is furnished to do so, subject to 10 * the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the 13 * next paragraph) shall be included in all copies or substantial portions 14 * of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 19 * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR 20 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 21 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 22 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23 */ 24#include "loadsurface_yuv.h" 25 26static int scale_2dimage(unsigned char *src_img, int src_imgw, int src_imgh, 27 unsigned char *dst_img, int dst_imgw, int dst_imgh) 28{ 29 int row=0, col=0; 30 31 for (row=0; row<dst_imgh; row++) { 32 for (col=0; col<dst_imgw; col++) { 33 *(dst_img + row * dst_imgw + col) = *(src_img + (row * src_imgh/dst_imgh) * src_imgw + col * src_imgw/dst_imgw); 34 } 35 } 36 37 return 0; 38} 39 40 41static int YUV_blend_with_pic(int width, int height, 42 unsigned char *Y_start, int Y_pitch, 43 unsigned char *U_start, int U_pitch, 44 unsigned char *V_start, int V_pitch, 45 unsigned int fourcc, int fixed_alpha) 46{ 47 /* PIC YUV format */ 48 unsigned char *pic_y_old = yuvga_pic; 49 unsigned char *pic_u_old = pic_y_old + 640*480; 50 unsigned char *pic_v_old = pic_u_old + 640*480/4; 51 unsigned char *pic_y, *pic_u, *pic_v; 52 53 int alpha_values[] = {100,90,80,70,60,50,40,30,20,30,40,50,60,70,80,90}; 54 55 static int alpha_idx = 0; 56 int alpha; 57 int allocated = 0; 58 59 int row, col; 60 61 if (fixed_alpha == 0) { 62 alpha = alpha_values[alpha_idx % 16 ]; 63 alpha_idx ++; 64 } else 65 alpha = fixed_alpha; 66 67 //alpha = 0; 68 69 pic_y = pic_y_old; 70 pic_u = pic_u_old; 71 pic_v = pic_v_old; 72 73 if (width != 640 || height != 480) { /* need to scale the pic */ 74 pic_y = (unsigned char *)malloc(width * height); 75 pic_u = (unsigned char *)malloc(width * height/4); 76 pic_v = (unsigned char *)malloc(width * height/4); 77 78 allocated = 1; 79 80 scale_2dimage(pic_y_old, 640, 480, 81 pic_y, width, height); 82 scale_2dimage(pic_u_old, 320, 240, 83 pic_u, width/2, height/2); 84 scale_2dimage(pic_v_old, 320, 240, 85 pic_v, width/2, height/2); 86 } 87 88 /* begin blend */ 89 90 /* Y plane */ 91 int Y_pixel_stride = 1; 92 if (fourcc == VA_FOURCC_YUY2) 93 Y_pixel_stride = 2; 94 95 for (row=0; row<height; row++) { 96 unsigned char *p = Y_start + row * Y_pitch; 97 unsigned char *q = pic_y + row * width; 98 for (col=0; col<width; col++, q++) { 99 *p = *p * (100 - alpha) / 100 + *q * alpha/100; 100 p += Y_pixel_stride; 101 } 102 } 103 104 /* U/V plane */ 105 int U_pixel_stride = 0, V_pixel_stride = 0; 106 int v_factor_to_nv12 = 1; 107 switch (fourcc) { 108 case VA_FOURCC_YV12: 109 U_pixel_stride = V_pixel_stride = 1; 110 break; 111 case VA_FOURCC_NV12: 112 U_pixel_stride = V_pixel_stride = 2; 113 break; 114 case VA_FOURCC_YUY2: 115 U_pixel_stride = V_pixel_stride = 4; 116 v_factor_to_nv12 = 2; 117 break; 118 default: 119 break; 120 } 121 for (row=0; row<height/2*v_factor_to_nv12; row++) { 122 unsigned char *pU = U_start + row * U_pitch; 123 unsigned char *pV = V_start + row * V_pitch; 124 unsigned char *qU = pic_u + row/v_factor_to_nv12 * width/2; 125 unsigned char *qV = pic_v + row/v_factor_to_nv12 * width/2; 126 127 for (col=0; col<width/2; col++, qU++, qV++) { 128 *pU = *pU * (100 - alpha) / 100 + *qU * alpha/100; 129 *pV = *pV * (100 - alpha) / 100 + *qV * alpha/100; 130 131 pU += U_pixel_stride; 132 pV += V_pixel_stride; 133 } 134 } 135 136 137 if (allocated) { 138 free(pic_y); 139 free(pic_u); 140 free(pic_v); 141 } 142 143 return 0; 144} 145 146static int yuvgen_planar(int width, int height, 147 unsigned char *Y_start, int Y_pitch, 148 unsigned char *U_start, int U_pitch, 149 unsigned char *V_start, int V_pitch, 150 unsigned int fourcc, int box_width, int row_shift, 151 int field) 152{ 153 int row, alpha; 154 unsigned char uv_value = 0x80; 155 156 /* copy Y plane */ 157 int y_factor = 1; 158 if (fourcc == VA_FOURCC_YUY2) y_factor = 2; 159 for (row=0;row<height;row++) { 160 unsigned char *Y_row = Y_start + row * Y_pitch; 161 int jj, xpos, ypos; 162 163 ypos = (row / box_width) & 0x1; 164 165 /* fill garbage data into the other field */ 166 if (((field == VA_TOP_FIELD) && (row &1)) 167 || ((field == VA_BOTTOM_FIELD) && ((row &1)==0))) { 168 memset(Y_row, 0xff, width); 169 continue; 170 } 171 172 for (jj=0; jj<width; jj++) { 173 xpos = ((row_shift + jj) / box_width) & 0x1; 174 if (xpos == ypos) 175 Y_row[jj*y_factor] = 0xeb; 176 else 177 Y_row[jj*y_factor] = 0x10; 178 179 if (fourcc == VA_FOURCC_YUY2) { 180 Y_row[jj*y_factor+1] = uv_value; // it is for UV 181 } 182 } 183 } 184 185 /* copy UV data */ 186 for( row =0; row < height/2; row++) { 187 188 /* fill garbage data into the other field */ 189 if (((field == VA_TOP_FIELD) && (row &1)) 190 || ((field == VA_BOTTOM_FIELD) && ((row &1)==0))) { 191 uv_value = 0xff; 192 } 193 194 unsigned char *U_row = U_start + row * U_pitch; 195 unsigned char *V_row = V_start + row * V_pitch; 196 switch (fourcc) { 197 case VA_FOURCC_NV12: 198 memset(U_row, uv_value, width); 199 break; 200 case VA_FOURCC_YV12: 201 memset (U_row,uv_value,width/2); 202 memset (V_row,uv_value,width/2); 203 break; 204 case VA_FOURCC_YUY2: 205 // see above. it is set with Y update. 206 break; 207 default: 208 printf("unsupported fourcc in loadsurface.h\n"); 209 assert(0); 210 } 211 } 212 213 if (getenv("AUTO_UV") == 0) 214 return 0; 215 216 if (getenv("AUTO_ALPHA")) 217 alpha = 0; 218 else 219 alpha = 70; 220 221 YUV_blend_with_pic(width,height, 222 Y_start, Y_pitch, 223 U_start, U_pitch, 224 V_start, V_pitch, 225 fourcc, alpha); 226 227 return 0; 228} 229 230static int upload_surface(VADisplay va_dpy, VASurfaceID surface_id, 231 int box_width, int row_shift, 232 int field) 233{ 234 VAImage surface_image; 235 void *surface_p=NULL, *U_start = NULL,*V_start = NULL; 236 VAStatus va_status; 237 unsigned int pitches[3]={0,0,0}; 238 239 va_status = vaDeriveImage(va_dpy,surface_id,&surface_image); 240 CHECK_VASTATUS(va_status,"vaDeriveImage"); 241 242 vaMapBuffer(va_dpy,surface_image.buf,&surface_p); 243 assert(VA_STATUS_SUCCESS == va_status); 244 245 pitches[0] = surface_image.pitches[0]; 246 switch (surface_image.format.fourcc) { 247 case VA_FOURCC_NV12: 248 U_start = (char *)surface_p + surface_image.offsets[1]; 249 V_start = (char *)U_start + 1; 250 pitches[1] = surface_image.pitches[1]; 251 pitches[2] = surface_image.pitches[1]; 252 break; 253 case VA_FOURCC_IYUV: 254 U_start = (char *)surface_p + surface_image.offsets[1]; 255 V_start = (char *)surface_p + surface_image.offsets[2]; 256 pitches[1] = surface_image.pitches[1]; 257 pitches[2] = surface_image.pitches[2]; 258 break; 259 case VA_FOURCC_YV12: 260 U_start = (char *)surface_p + surface_image.offsets[2]; 261 V_start = (char *)surface_p + surface_image.offsets[1]; 262 pitches[1] = surface_image.pitches[2]; 263 pitches[2] = surface_image.pitches[1]; 264 break; 265 case VA_FOURCC_YUY2: 266 U_start = (char *)surface_p + 1; 267 V_start = (char *)surface_p + 3; 268 pitches[1] = surface_image.pitches[0]; 269 pitches[2] = surface_image.pitches[0]; 270 break; 271 default: 272 assert(0); 273 } 274 275 /* assume surface is planar format */ 276 yuvgen_planar(surface_image.width, surface_image.height, 277 (unsigned char *)surface_p, pitches[0], 278 (unsigned char *)U_start, pitches[1], 279 (unsigned char *)V_start, pitches[2], 280 surface_image.format.fourcc, 281 box_width, row_shift, field); 282 283 vaUnmapBuffer(va_dpy,surface_image.buf); 284 285 vaDestroyImage(va_dpy,surface_image.image_id); 286 287 return 0; 288} 289 290/* 291 * Upload YUV data from memory into a surface 292 * if src_fourcc == NV12, assume the buffer pointed by src_U 293 * is UV interleaved (src_V is ignored) 294 */ 295static int upload_surface_yuv(VADisplay va_dpy, VASurfaceID surface_id, 296 int src_fourcc, int src_width, int src_height, 297 unsigned char *src_Y, unsigned char *src_U, unsigned char *src_V) 298{ 299 VAImage surface_image; 300 unsigned char *surface_p=NULL, *Y_start=NULL, *U_start=NULL, *V_start=NULL; 301 int Y_pitch=0, U_pitch=0, V_pitch=0, row; 302 VAStatus va_status; 303 304 va_status = vaDeriveImage(va_dpy,surface_id, &surface_image); 305 CHECK_VASTATUS(va_status,"vaDeriveImage"); 306 307 vaMapBuffer(va_dpy,surface_image.buf,(void **)&surface_p); 308 assert(VA_STATUS_SUCCESS == va_status); 309 310 Y_start = surface_p; 311 Y_pitch = surface_image.pitches[0]; 312 switch (surface_image.format.fourcc) { 313 case VA_FOURCC_NV12: 314 U_start = (unsigned char *)surface_p + surface_image.offsets[1]; 315 V_start = U_start + 1; 316 U_pitch = surface_image.pitches[1]; 317 V_pitch = surface_image.pitches[1]; 318 break; 319 case VA_FOURCC_IYUV: 320 U_start = (unsigned char *)surface_p + surface_image.offsets[1]; 321 V_start = (unsigned char *)surface_p + surface_image.offsets[2]; 322 U_pitch = surface_image.pitches[1]; 323 V_pitch = surface_image.pitches[2]; 324 break; 325 case VA_FOURCC_YV12: 326 U_start = (unsigned char *)surface_p + surface_image.offsets[2]; 327 V_start = (unsigned char *)surface_p + surface_image.offsets[1]; 328 U_pitch = surface_image.pitches[2]; 329 V_pitch = surface_image.pitches[1]; 330 break; 331 case VA_FOURCC_YUY2: 332 U_start = surface_p + 1; 333 V_start = surface_p + 3; 334 U_pitch = surface_image.pitches[0]; 335 V_pitch = surface_image.pitches[0]; 336 break; 337 default: 338 assert(0); 339 } 340 341 /* copy Y plane */ 342 for (row=0;row<src_height;row++) { 343 unsigned char *Y_row = Y_start + row * Y_pitch; 344 memcpy(Y_row, src_Y + row*src_width, src_width); 345 } 346 347 for (row =0; row < src_height/2; row++) { 348 unsigned char *U_row = U_start + row * U_pitch; 349 unsigned char *u_ptr = NULL, *v_ptr=NULL; 350 int j; 351 switch (surface_image.format.fourcc) { 352 case VA_FOURCC_NV12: 353 if (src_fourcc == VA_FOURCC_NV12) { 354 memcpy(U_row, src_U + row * src_width, src_width); 355 break; 356 } else if (src_fourcc == VA_FOURCC_IYUV) { 357 u_ptr = src_U + row * (src_width/2); 358 v_ptr = src_V + row * (src_width/2); 359 } else if (src_fourcc == VA_FOURCC_YV12) { 360 v_ptr = src_U + row * (src_width/2); 361 u_ptr = src_V + row * (src_width/2); 362 } 363 for(j = 0; j < src_width/2; j++) { 364 U_row[2*j] = u_ptr[j]; 365 U_row[2*j+1] = v_ptr[j]; 366 } 367 break; 368 case VA_FOURCC_IYUV: 369 case VA_FOURCC_YV12: 370 case VA_FOURCC_YUY2: 371 default: 372 printf("unsupported fourcc in load_surface_yuv\n"); 373 assert(0); 374 } 375 } 376 377 vaUnmapBuffer(va_dpy,surface_image.buf); 378 379 vaDestroyImage(va_dpy,surface_image.image_id); 380 381 return 0; 382} 383 384/* 385 * Download YUV data from a surface into memory 386 * Some hardward doesn't have a aperture for linear access of 387 * tiled surface, thus use vaGetImage to expect the implemnetion 388 * to do tile to linear convert 389 * 390 * if dst_fourcc == NV12, assume the buffer pointed by dst_U 391 * is UV interleaved (src_V is ignored) 392 */ 393static int download_surface_yuv(VADisplay va_dpy, VASurfaceID surface_id, 394 int dst_fourcc, int dst_width, int dst_height, 395 unsigned char *dst_Y, unsigned char *dst_U, unsigned char *dst_V) 396{ 397 VAImage surface_image; 398 unsigned char *surface_p=NULL, *Y_start=NULL, *U_start=NULL,*V_start=NULL; 399 int Y_pitch=0, U_pitch=0, V_pitch=0, row; 400 VAStatus va_status; 401 402 va_status = vaDeriveImage(va_dpy,surface_id, &surface_image); 403 CHECK_VASTATUS(va_status,"vaDeriveImage"); 404 405 vaMapBuffer(va_dpy,surface_image.buf,(void **)&surface_p); 406 assert(VA_STATUS_SUCCESS == va_status); 407 408 Y_start = surface_p; 409 Y_pitch = surface_image.pitches[0]; 410 switch (surface_image.format.fourcc) { 411 case VA_FOURCC_NV12: 412 U_start = (unsigned char *)surface_p + surface_image.offsets[1]; 413 V_start = U_start + 1; 414 U_pitch = surface_image.pitches[1]; 415 V_pitch = surface_image.pitches[1]; 416 break; 417 case VA_FOURCC_IYUV: 418 U_start = (unsigned char *)surface_p + surface_image.offsets[1]; 419 V_start = (unsigned char *)surface_p + surface_image.offsets[2]; 420 U_pitch = surface_image.pitches[1]; 421 V_pitch = surface_image.pitches[2]; 422 break; 423 case VA_FOURCC_YV12: 424 U_start = (unsigned char *)surface_p + surface_image.offsets[2]; 425 V_start = (unsigned char *)surface_p + surface_image.offsets[1]; 426 U_pitch = surface_image.pitches[2]; 427 V_pitch = surface_image.pitches[1]; 428 break; 429 case VA_FOURCC_YUY2: 430 U_start = surface_p + 1; 431 V_start = surface_p + 3; 432 U_pitch = surface_image.pitches[0]; 433 V_pitch = surface_image.pitches[0]; 434 break; 435 default: 436 assert(0); 437 } 438 439 /* copy Y plane */ 440 for (row=0;row<dst_height;row++) { 441 unsigned char *Y_row = Y_start + row * Y_pitch; 442 memcpy(dst_Y + row*dst_width, Y_row, dst_width); 443 } 444 445 for (row =0; row < dst_height/2; row++) { 446 unsigned char *U_row = U_start + row * U_pitch; 447 unsigned char *u_ptr = NULL, *v_ptr = NULL; 448 int j; 449 switch (surface_image.format.fourcc) { 450 case VA_FOURCC_NV12: 451 if (dst_fourcc == VA_FOURCC_NV12) { 452 memcpy(dst_U + row * dst_width, U_row, dst_width); 453 break; 454 } else if (dst_fourcc == VA_FOURCC_IYUV) { 455 u_ptr = dst_U + row * (dst_width/2); 456 v_ptr = dst_V + row * (dst_width/2); 457 } else if (dst_fourcc == VA_FOURCC_YV12) { 458 v_ptr = dst_U + row * (dst_width/2); 459 u_ptr = dst_V + row * (dst_width/2); 460 } 461 for(j = 0; j < dst_width/2; j++) { 462 u_ptr[j] = U_row[2*j]; 463 v_ptr[j] = U_row[2*j+1]; 464 } 465 break; 466 case VA_FOURCC_IYUV: 467 case VA_FOURCC_YV12: 468 case VA_FOURCC_YUY2: 469 default: 470 printf("unsupported fourcc in load_surface_yuv\n"); 471 assert(0); 472 } 473 } 474 475 vaUnmapBuffer(va_dpy,surface_image.buf); 476 477 vaDestroyImage(va_dpy,surface_image.image_id); 478 479 return 0; 480} 481