Mercurial > sdl-ios-xcode
comparison src/video/ps3/spulibs/bilin_scaler.c @ 3148:104786a909a2 gsoc2009_ps3
Scaling (bilinear) of YUV-Textures working.
| author | Martin Lowinski <martin@goldtopf.org> |
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| date | Fri, 19 Jun 2009 05:22:00 +0000 |
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| 3147:a80760096937 | 3148:104786a909a2 |
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| 1 /* | |
| 2 * SDL - Simple DirectMedia Layer | |
| 3 * CELL BE Support for PS3 Framebuffer | |
| 4 * Copyright (C) 2008, 2009 International Business Machines Corporation | |
| 5 * | |
| 6 * This library is free software; you can redistribute it and/or modify it | |
| 7 * under the terms of the GNU Lesser General Public License as published | |
| 8 * by the Free Software Foundation; either version 2.1 of the License, or | |
| 9 * (at your option) any later version. | |
| 10 * | |
| 11 * This library is distributed in the hope that it will be useful, but | |
| 12 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 * Lesser General Public License for more details. | |
| 15 * | |
| 16 * You should have received a copy of the GNU Lesser General Public | |
| 17 * License along with this library; if not, write to the Free Software | |
| 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 | |
| 19 * USA | |
| 20 * | |
| 21 * Martin Lowinski <lowinski [at] de [dot] ibm [ibm] com> | |
| 22 * Dirk Herrendoerfer <d.herrendoerfer [at] de [dot] ibm [dot] com> | |
| 23 * SPE code based on research by: | |
| 24 * Rene Becker | |
| 25 * Thimo Emmerich | |
| 26 */ | |
| 27 | |
| 28 #include "spu_common.h" | |
| 29 | |
| 30 #include <spu_intrinsics.h> | |
| 31 #include <spu_mfcio.h> | |
| 32 | |
| 33 // Debugging | |
| 34 //#define DEBUG | |
| 35 | |
| 36 #ifdef DEBUG | |
| 37 #define deprintf(fmt, args... ) \ | |
| 38 fprintf( stdout, fmt, ##args ); \ | |
| 39 fflush( stdout ); | |
| 40 #else | |
| 41 #define deprintf( fmt, args... ) | |
| 42 #endif | |
| 43 | |
| 44 struct scale_parms_t parms __attribute__((aligned(128))); | |
| 45 | |
| 46 /* A maximum of 8 lines Y, therefore 4 lines V, 4 lines U are stored | |
| 47 * there might be the need to retrieve misaligned data, adjust | |
| 48 * incoming v and u plane to be able to handle this (add 128) | |
| 49 */ | |
| 50 unsigned char y_plane[2][(MAX_HDTV_WIDTH+128)*4] __attribute__((aligned(128))); | |
| 51 unsigned char v_plane[2][(MAX_HDTV_WIDTH+128)*2] __attribute__((aligned(128))); | |
| 52 unsigned char u_plane[2][(MAX_HDTV_WIDTH+128)*2] __attribute__((aligned(128))); | |
| 53 | |
| 54 /* temp-buffer for scaling: 4 lines Y, therefore 2 lines V, 2 lines U */ | |
| 55 unsigned char scaled_y_plane[2][MAX_HDTV_WIDTH*2] __attribute__((aligned(128))); | |
| 56 unsigned char scaled_v_plane[2][MAX_HDTV_WIDTH/2] __attribute__((aligned(128))); | |
| 57 unsigned char scaled_u_plane[2][MAX_HDTV_WIDTH/2] __attribute__((aligned(128))); | |
| 58 | |
| 59 /* some vectors needed by the float to int conversion */ | |
| 60 static const vector float vec_255 = { 255.0f, 255.0f, 255.0f, 255.0f }; | |
| 61 static const vector float vec_0_1 = { 0.1f, 0.1f, 0.1f, 0.1f }; | |
| 62 | |
| 63 void bilinear_scale_line_w8(unsigned char* src, unsigned char* dst_, unsigned int dst_width, vector float vf_x_scale, vector float vf_NSweight, unsigned int src_linestride); | |
| 64 void bilinear_scale_line_w16(unsigned char* src, unsigned char* dst_, unsigned int dst_width, vector float vf_x_scale, vector float vf_NSweight, unsigned int src_linestride); | |
| 65 | |
| 66 void scale_srcw16_dstw16(); | |
| 67 void scale_srcw16_dstw32(); | |
| 68 void scale_srcw32_dstw16(); | |
| 69 void scale_srcw32_dstw32(); | |
| 70 | |
| 71 int main( unsigned long long spe_id __attribute__((unused)), unsigned long long argp ) | |
| 72 { | |
| 73 deprintf("[SPU] bilin_scaler_spu is up... (on SPE #%llu)\n", spe_id); | |
| 74 /* DMA transfer for the input parameters */ | |
| 75 spu_mfcdma32(&parms, (unsigned int)argp, sizeof(struct scale_parms_t), TAG_INIT, MFC_GET_CMD); | |
| 76 DMA_WAIT_TAG(TAG_INIT); | |
| 77 | |
| 78 deprintf("[SPU] Scale %ux%u to %ux%u\n", parms.src_pixel_width, parms.src_pixel_height, | |
| 79 parms.dst_pixel_width, parms.dst_pixel_height); | |
| 80 | |
| 81 if(parms.src_pixel_width & 0x1f) { | |
| 82 if(parms.dst_pixel_width & 0x1F) { | |
| 83 deprintf("[SPU] Using scale_srcw16_dstw16\n"); | |
| 84 scale_srcw16_dstw16(); | |
| 85 } else { | |
| 86 deprintf("[SPU] Using scale_srcw16_dstw32\n"); | |
| 87 scale_srcw16_dstw32(); | |
| 88 } | |
| 89 } else { | |
| 90 if(parms.dst_pixel_width & 0x1F) { | |
| 91 deprintf("[SPU] Using scale_srcw32_dstw16\n"); | |
| 92 scale_srcw32_dstw16(); | |
| 93 } else { | |
| 94 deprintf("[SPU] Using scale_srcw32_dstw32\n"); | |
| 95 scale_srcw32_dstw32(); | |
| 96 } | |
| 97 } | |
| 98 deprintf("[SPU] bilin_scaler_spu... done!\n"); | |
| 99 | |
| 100 return 0; | |
| 101 } | |
| 102 | |
| 103 | |
| 104 /* | |
| 105 * vfloat_to_vuint() | |
| 106 * | |
| 107 * converts a float vector to an unsinged int vector using saturated | |
| 108 * arithmetic | |
| 109 * | |
| 110 * @param vec_s float vector for conversion | |
| 111 * @returns converted unsigned int vector | |
| 112 */ | |
| 113 inline static vector unsigned int vfloat_to_vuint(vector float vec_s) { | |
| 114 vector unsigned int select_1 = spu_cmpgt(vec_0_1, vec_s); | |
| 115 vec_s = spu_sel(vec_s, vec_0_1, select_1); | |
| 116 | |
| 117 vector unsigned int select_2 = spu_cmpgt(vec_s, vec_255); | |
| 118 vec_s = spu_sel(vec_s, vec_255, select_2); | |
| 119 return spu_convtu(vec_s,0); | |
| 120 } | |
| 121 | |
| 122 | |
| 123 /* | |
| 124 * scale_srcw16_dstw16() | |
| 125 * | |
| 126 * processes an input image of width 16 | |
| 127 * scaling is done to a width 16 | |
| 128 * result stored in RAM | |
| 129 */ | |
| 130 void scale_srcw16_dstw16() { | |
| 131 // extract parameters | |
| 132 unsigned char* dst_addr = (unsigned char *)parms.dstBuffer; | |
| 133 | |
| 134 unsigned int src_width = parms.src_pixel_width; | |
| 135 unsigned int src_height = parms.src_pixel_height; | |
| 136 unsigned int dst_width = parms.dst_pixel_width; | |
| 137 unsigned int dst_height = parms.dst_pixel_height; | |
| 138 | |
| 139 // YVU | |
| 140 unsigned int src_linestride_y = src_width; | |
| 141 unsigned int src_dbl_linestride_y = src_width<<1; | |
| 142 unsigned int src_linestride_vu = src_width>>1; | |
| 143 unsigned int src_dbl_linestride_vu = src_width; | |
| 144 | |
| 145 // scaled YVU | |
| 146 unsigned int scaled_src_linestride_y = dst_width; | |
| 147 | |
| 148 // ram addresses | |
| 149 unsigned char* src_addr_y = parms.y_plane; | |
| 150 unsigned char* src_addr_v = parms.v_plane; | |
| 151 unsigned char* src_addr_u = parms.u_plane; | |
| 152 | |
| 153 // for handling misalignment, addresses are precalculated | |
| 154 unsigned char* precalc_src_addr_v = src_addr_v; | |
| 155 unsigned char* precalc_src_addr_u = src_addr_u; | |
| 156 | |
| 157 unsigned int dst_picture_size = dst_width*dst_height; | |
| 158 | |
| 159 // Sizes for destination | |
| 160 unsigned int dst_dbl_linestride_y = dst_width<<1; | |
| 161 unsigned int dst_dbl_linestride_vu = dst_width>>1; | |
| 162 | |
| 163 // Perform address calculation for Y, V and U in main memory with dst_addr as base | |
| 164 unsigned char* dst_addr_main_memory_y = dst_addr; | |
| 165 unsigned char* dst_addr_main_memory_v = dst_addr + dst_picture_size; | |
| 166 unsigned char* dst_addr_main_memory_u = dst_addr_main_memory_v +(dst_picture_size>>2); | |
| 167 | |
| 168 // calculate scale factors | |
| 169 vector float vf_x_scale = spu_splats( (float)src_width/(float)dst_width ); | |
| 170 float y_scale = (float)src_height/(float)dst_height; | |
| 171 | |
| 172 // double buffered processing | |
| 173 // buffer switching | |
| 174 unsigned int curr_src_idx = 0; | |
| 175 unsigned int curr_dst_idx = 0; | |
| 176 unsigned int next_src_idx, next_dst_idx; | |
| 177 | |
| 178 // 2 lines y as output, upper and lowerline | |
| 179 unsigned int curr_interpl_y_upper = 0; | |
| 180 unsigned int next_interpl_y_upper; | |
| 181 unsigned int curr_interpl_y_lower, next_interpl_y_lower; | |
| 182 // only 1 line v/u output, both planes have the same dimension | |
| 183 unsigned int curr_interpl_vu = 0; | |
| 184 unsigned int next_interpl_vu; | |
| 185 | |
| 186 // weights, calculated in every loop iteration | |
| 187 vector float vf_curr_NSweight_y_upper = { 0.0f, 0.0f, 0.0f, 0.0f }; | |
| 188 vector float vf_next_NSweight_y_upper; | |
| 189 vector float vf_curr_NSweight_y_lower, vf_next_NSweight_y_lower; | |
| 190 vector float vf_curr_NSweight_vu = { 0.0f, 0.0f, 0.0f, 0.0f }; | |
| 191 vector float vf_next_NSweight_vu; | |
| 192 | |
| 193 // line indices for the src picture | |
| 194 float curr_src_y_upper = 0.0f, next_src_y_upper; | |
| 195 float curr_src_y_lower, next_src_y_lower; | |
| 196 float curr_src_vu = 0.0f, next_src_vu; | |
| 197 | |
| 198 // line indices for the dst picture | |
| 199 unsigned int dst_y=0, dst_vu=0; | |
| 200 | |
| 201 // offset for the v and u plane to handle misalignement | |
| 202 unsigned int curr_lsoff_v = 0, next_lsoff_v; | |
| 203 unsigned int curr_lsoff_u = 0, next_lsoff_u; | |
| 204 | |
| 205 // calculate lower line indices | |
| 206 curr_src_y_lower = ((float)curr_interpl_y_upper+1)*y_scale; | |
| 207 curr_interpl_y_lower = (unsigned int)curr_src_y_lower; | |
| 208 // lower line weight | |
| 209 vf_curr_NSweight_y_lower = spu_splats( curr_src_y_lower-(float)curr_interpl_y_lower ); | |
| 210 | |
| 211 | |
| 212 // start partially double buffered processing | |
| 213 // get initial data, 2 sets of y, 1 set v, 1 set u | |
| 214 mfc_get( y_plane[curr_src_idx], (unsigned int) src_addr_y, src_dbl_linestride_y, RETR_BUF, 0, 0 ); | |
| 215 mfc_get( y_plane[curr_src_idx]+src_dbl_linestride_y, | |
| 216 (unsigned int) src_addr_y+(curr_interpl_y_lower*src_linestride_y), | |
| 217 src_dbl_linestride_y, | |
| 218 RETR_BUF, | |
| 219 0, 0 ); | |
| 220 mfc_get( v_plane[curr_src_idx], (unsigned int) src_addr_v, src_dbl_linestride_vu, RETR_BUF, 0, 0 ); | |
| 221 mfc_get( u_plane[curr_src_idx], (unsigned int) src_addr_u, src_dbl_linestride_vu, RETR_BUF, 0, 0 ); | |
| 222 | |
| 223 /* iteration loop | |
| 224 * within each iteration 4 lines y, 2 lines v, 2 lines u are retrieved | |
| 225 * the scaled output is 2 lines y, 1 line v, 1 line u | |
| 226 * the yuv2rgb-converted output is stored to RAM | |
| 227 */ | |
| 228 for( dst_vu=0; dst_vu<(dst_height>>1)-1; dst_vu++ ) { | |
| 229 dst_y = dst_vu<<1; | |
| 230 | |
| 231 // calculate next indices | |
| 232 next_src_vu = ((float)dst_vu+1)*y_scale; | |
| 233 next_src_y_upper = ((float)dst_y+2)*y_scale; | |
| 234 next_src_y_lower = ((float)dst_y+3)*y_scale; | |
| 235 | |
| 236 next_interpl_vu = (unsigned int) next_src_vu; | |
| 237 next_interpl_y_upper = (unsigned int) next_src_y_upper; | |
| 238 next_interpl_y_lower = (unsigned int) next_src_y_lower; | |
| 239 | |
| 240 // calculate weight NORTH-SOUTH | |
| 241 vf_next_NSweight_vu = spu_splats( next_src_vu-(float)next_interpl_vu ); | |
| 242 vf_next_NSweight_y_upper = spu_splats( next_src_y_upper-(float)next_interpl_y_upper ); | |
| 243 vf_next_NSweight_y_lower = spu_splats( next_src_y_lower-(float)next_interpl_y_lower ); | |
| 244 | |
| 245 // get next lines | |
| 246 next_src_idx = curr_src_idx^1; | |
| 247 next_dst_idx = curr_dst_idx^1; | |
| 248 | |
| 249 // 4 lines y | |
| 250 mfc_get( y_plane[next_src_idx], | |
| 251 (unsigned int) src_addr_y+(next_interpl_y_upper*src_linestride_y), | |
| 252 src_dbl_linestride_y, | |
| 253 RETR_BUF+next_src_idx, | |
| 254 0, 0 ); | |
| 255 mfc_get( y_plane[next_src_idx]+src_dbl_linestride_y, | |
| 256 (unsigned int) src_addr_y+(next_interpl_y_lower*src_linestride_y), | |
| 257 src_dbl_linestride_y, | |
| 258 RETR_BUF+next_src_idx, | |
| 259 0, 0 ); | |
| 260 | |
| 261 // 2 lines v | |
| 262 precalc_src_addr_v = src_addr_v+(next_interpl_vu*src_linestride_vu); | |
| 263 next_lsoff_v = ((unsigned int)precalc_src_addr_v)&0x0F; | |
| 264 mfc_get( v_plane[next_src_idx], | |
| 265 ((unsigned int) precalc_src_addr_v)&0xFFFFFFF0, | |
| 266 src_dbl_linestride_vu+(next_lsoff_v<<1), | |
| 267 RETR_BUF+next_src_idx, | |
| 268 0, 0 ); | |
| 269 // 2 lines u | |
| 270 precalc_src_addr_u = src_addr_u+(next_interpl_vu*src_linestride_vu); | |
| 271 next_lsoff_u = ((unsigned int)precalc_src_addr_u)&0x0F; | |
| 272 mfc_get( u_plane[next_src_idx], | |
| 273 ((unsigned int) precalc_src_addr_u)&0xFFFFFFF0, | |
| 274 src_dbl_linestride_vu+(next_lsoff_v<<1), | |
| 275 RETR_BUF+next_src_idx, | |
| 276 0, 0 ); | |
| 277 | |
| 278 DMA_WAIT_TAG( (RETR_BUF+curr_src_idx) ); | |
| 279 | |
| 280 // scaling | |
| 281 // work line y_upper | |
| 282 bilinear_scale_line_w16( y_plane[curr_src_idx], | |
| 283 scaled_y_plane[curr_src_idx], | |
| 284 dst_width, | |
| 285 vf_x_scale, | |
| 286 vf_curr_NSweight_y_upper, | |
| 287 src_linestride_y ); | |
| 288 // work line y_lower | |
| 289 bilinear_scale_line_w16( y_plane[curr_src_idx]+src_dbl_linestride_y, | |
| 290 scaled_y_plane[curr_src_idx]+scaled_src_linestride_y, | |
| 291 dst_width, | |
| 292 vf_x_scale, | |
| 293 vf_curr_NSweight_y_lower, | |
| 294 src_linestride_y ); | |
| 295 // work line v | |
| 296 bilinear_scale_line_w8( v_plane[curr_src_idx]+curr_lsoff_v, | |
| 297 scaled_v_plane[curr_src_idx], | |
| 298 dst_width>>1, | |
| 299 vf_x_scale, | |
| 300 vf_curr_NSweight_vu, | |
| 301 src_linestride_vu ); | |
| 302 // work line u | |
| 303 bilinear_scale_line_w8( u_plane[curr_src_idx]+curr_lsoff_u, | |
| 304 scaled_u_plane[curr_src_idx], | |
| 305 dst_width>>1, | |
| 306 vf_x_scale, | |
| 307 vf_curr_NSweight_vu, | |
| 308 src_linestride_vu ); | |
| 309 | |
| 310 | |
| 311 // Store the result back to main memory into a destination buffer in YUV format | |
| 312 //--------------------------------------------------------------------------------------------- | |
| 313 DMA_WAIT_TAG( (STR_BUF+curr_dst_idx) ); | |
| 314 | |
| 315 // Perform three DMA transfers to 3 different locations in the main memory! | |
| 316 // dst_width: Pixel width of destination image | |
| 317 // dst_addr: Destination address in main memory | |
| 318 // dst_vu: Counter which is incremented one by one | |
| 319 // dst_y: Counter which is twice larger than dst_vu (dst_y = 2*dst_vu) | |
| 320 mfc_put( scaled_y_plane[curr_src_idx], // What from local store (addr) | |
| 321 (unsigned int)dst_addr_main_memory_y + (dst_vu*dst_dbl_linestride_y), // Destination in main memory (addr) | |
| 322 dst_dbl_linestride_y, // Two Y lines (depending on the widht of the destination resolution) | |
| 323 STR_BUF+curr_dst_idx, // Tag | |
| 324 0, 0 ); | |
| 325 | |
| 326 mfc_put( scaled_v_plane[curr_src_idx], // What from local store (addr) | |
| 327 (unsigned int)dst_addr_main_memory_v + (dst_vu*dst_dbl_linestride_vu), // Destination in main memory (addr) | |
| 328 dst_dbl_linestride_vu, // Two V lines (depending on the widht of the destination resolution) | |
| 329 STR_BUF+curr_dst_idx, // Tag | |
| 330 0, 0 ); | |
| 331 | |
| 332 mfc_put( scaled_u_plane[curr_src_idx], // What from local store (addr) | |
| 333 (unsigned int)dst_addr_main_memory_u + (dst_vu*dst_dbl_linestride_vu), // Destination in main memory (addr) | |
| 334 dst_dbl_linestride_vu, // Two U lines (depending on the widht of the destination resolution) | |
| 335 STR_BUF+curr_dst_idx, // Tag | |
| 336 0, 0 ); | |
| 337 //--------------------------------------------------------------------------------------------- | |
| 338 | |
| 339 | |
| 340 // update for next cycle | |
| 341 curr_src_idx = next_src_idx; | |
| 342 curr_dst_idx = next_dst_idx; | |
| 343 | |
| 344 curr_interpl_y_upper = next_interpl_y_upper; | |
| 345 curr_interpl_y_lower = next_interpl_y_lower; | |
| 346 curr_interpl_vu = next_interpl_vu; | |
| 347 | |
| 348 vf_curr_NSweight_y_upper = vf_curr_NSweight_y_upper; | |
| 349 vf_curr_NSweight_y_lower = vf_curr_NSweight_y_lower; | |
| 350 vf_curr_NSweight_vu = vf_next_NSweight_vu; | |
| 351 | |
| 352 curr_src_y_upper = next_src_y_upper; | |
| 353 curr_src_y_lower = next_src_y_lower; | |
| 354 curr_src_vu = next_src_vu; | |
| 355 | |
| 356 curr_lsoff_v = next_lsoff_v; | |
| 357 curr_lsoff_u = next_lsoff_u; | |
| 358 } | |
| 359 | |
| 360 | |
| 361 | |
| 362 DMA_WAIT_TAG( (RETR_BUF+curr_src_idx) ); | |
| 363 | |
| 364 // scaling | |
| 365 // work line y_upper | |
| 366 bilinear_scale_line_w16( y_plane[curr_src_idx], | |
| 367 scaled_y_plane[curr_src_idx], | |
| 368 dst_width, | |
| 369 vf_x_scale, | |
| 370 vf_curr_NSweight_y_upper, | |
| 371 src_linestride_y ); | |
| 372 // work line y_lower | |
| 373 bilinear_scale_line_w16( y_plane[curr_src_idx]+src_dbl_linestride_y, | |
| 374 scaled_y_plane[curr_src_idx]+scaled_src_linestride_y, | |
| 375 dst_width, | |
| 376 vf_x_scale, | |
| 377 vf_curr_NSweight_y_lower, | |
| 378 src_linestride_y ); | |
| 379 // work line v | |
| 380 bilinear_scale_line_w8( v_plane[curr_src_idx]+curr_lsoff_v, | |
| 381 scaled_v_plane[curr_src_idx], | |
| 382 dst_width>>1, | |
| 383 vf_x_scale, | |
| 384 vf_curr_NSweight_vu, | |
| 385 src_linestride_vu ); | |
| 386 // work line u | |
| 387 bilinear_scale_line_w8( u_plane[curr_src_idx]+curr_lsoff_u, | |
| 388 scaled_u_plane[curr_src_idx], | |
| 389 dst_width>>1, | |
| 390 vf_x_scale, | |
| 391 vf_curr_NSweight_vu, | |
| 392 src_linestride_vu ); | |
| 393 | |
| 394 | |
| 395 // Store the result back to main memory into a destination buffer in YUV format | |
| 396 //--------------------------------------------------------------------------------------------- | |
| 397 DMA_WAIT_TAG( (STR_BUF+curr_dst_idx) ); | |
| 398 | |
| 399 // Perform three DMA transfers to 3 different locations in the main memory! | |
| 400 // dst_width: Pixel width of destination image | |
| 401 // dst_addr: Destination address in main memory | |
| 402 // dst_vu: Counter which is incremented one by one | |
| 403 // dst_y: Counter which is twice larger than dst_vu (dst_y = 2*dst_vu) | |
| 404 mfc_put( scaled_y_plane[curr_src_idx], // What from local store (addr) | |
| 405 (unsigned int)dst_addr_main_memory_y + (dst_vu*dst_dbl_linestride_y), // Destination in main memory (addr) | |
| 406 dst_dbl_linestride_y, // Two Y lines (depending on the widht of the destination resolution) | |
| 407 STR_BUF+curr_dst_idx, // Tag | |
| 408 0, 0 ); | |
| 409 | |
| 410 mfc_put( scaled_v_plane[curr_src_idx], // What from local store (addr) | |
| 411 (unsigned int)dst_addr_main_memory_v + (dst_vu*dst_dbl_linestride_vu), // Destination in main memory (addr) | |
| 412 dst_dbl_linestride_vu, // Two V lines (depending on the widht of the destination resolution) | |
| 413 STR_BUF+curr_dst_idx, // Tag | |
| 414 0, 0 ); | |
| 415 | |
| 416 mfc_put( scaled_u_plane[curr_src_idx], // What from local store (addr) | |
| 417 (unsigned int)dst_addr_main_memory_u + (dst_vu*dst_dbl_linestride_vu), // Destination in main memory (addr) | |
| 418 dst_dbl_linestride_vu, // Two U lines (depending on the widht of the destination resolution) | |
| 419 STR_BUF+curr_dst_idx, // Tag | |
| 420 0, 0 ); | |
| 421 | |
| 422 // wait for completion | |
| 423 DMA_WAIT_TAG( (STR_BUF+curr_dst_idx) ); | |
| 424 //--------------------------------------------------------------------------------------------- | |
| 425 } | |
| 426 | |
| 427 | |
| 428 /* | |
| 429 * scale_srcw16_dstw32() | |
| 430 * | |
| 431 * processes an input image of width 16 | |
| 432 * scaling is done to a width 32 | |
| 433 * yuv2rgb conversion on a width of 32 | |
| 434 * result stored in RAM | |
| 435 */ | |
| 436 void scale_srcw16_dstw32() { | |
| 437 // extract parameters | |
| 438 unsigned char* dst_addr = (unsigned char *)parms.dstBuffer; | |
| 439 | |
| 440 unsigned int src_width = parms.src_pixel_width; | |
| 441 unsigned int src_height = parms.src_pixel_height; | |
| 442 unsigned int dst_width = parms.dst_pixel_width; | |
| 443 unsigned int dst_height = parms.dst_pixel_height; | |
| 444 | |
| 445 // YVU | |
| 446 unsigned int src_linestride_y = src_width; | |
| 447 unsigned int src_dbl_linestride_y = src_width<<1; | |
| 448 unsigned int src_linestride_vu = src_width>>1; | |
| 449 unsigned int src_dbl_linestride_vu = src_width; | |
| 450 // scaled YVU | |
| 451 unsigned int scaled_src_linestride_y = dst_width; | |
| 452 | |
| 453 // ram addresses | |
| 454 unsigned char* src_addr_y = parms.y_plane; | |
| 455 unsigned char* src_addr_v = parms.v_plane; | |
| 456 unsigned char* src_addr_u = parms.u_plane; | |
| 457 | |
| 458 unsigned int dst_picture_size = dst_width*dst_height; | |
| 459 | |
| 460 // Sizes for destination | |
| 461 unsigned int dst_dbl_linestride_y = dst_width<<1; | |
| 462 unsigned int dst_dbl_linestride_vu = dst_width>>1; | |
| 463 | |
| 464 // Perform address calculation for Y, V and U in main memory with dst_addr as base | |
| 465 unsigned char* dst_addr_main_memory_y = dst_addr; | |
| 466 unsigned char* dst_addr_main_memory_v = dst_addr + dst_picture_size; | |
| 467 unsigned char* dst_addr_main_memory_u = dst_addr_main_memory_v +(dst_picture_size>>2); | |
| 468 | |
| 469 | |
| 470 // for handling misalignment, addresses are precalculated | |
| 471 unsigned char* precalc_src_addr_v = src_addr_v; | |
| 472 unsigned char* precalc_src_addr_u = src_addr_u; | |
| 473 | |
| 474 // calculate scale factors | |
| 475 vector float vf_x_scale = spu_splats( (float)src_width/(float)dst_width ); | |
| 476 float y_scale = (float)src_height/(float)dst_height; | |
| 477 | |
| 478 // double buffered processing | |
| 479 // buffer switching | |
| 480 unsigned int curr_src_idx = 0; | |
| 481 unsigned int curr_dst_idx = 0; | |
| 482 unsigned int next_src_idx, next_dst_idx; | |
| 483 | |
| 484 // 2 lines y as output, upper and lowerline | |
| 485 unsigned int curr_interpl_y_upper = 0; | |
| 486 unsigned int next_interpl_y_upper; | |
| 487 unsigned int curr_interpl_y_lower, next_interpl_y_lower; | |
| 488 // only 1 line v/u output, both planes have the same dimension | |
| 489 unsigned int curr_interpl_vu = 0; | |
| 490 unsigned int next_interpl_vu; | |
| 491 | |
| 492 // weights, calculated in every loop iteration | |
| 493 vector float vf_curr_NSweight_y_upper = { 0.0f, 0.0f, 0.0f, 0.0f }; | |
| 494 vector float vf_next_NSweight_y_upper; | |
| 495 vector float vf_curr_NSweight_y_lower, vf_next_NSweight_y_lower; | |
| 496 vector float vf_curr_NSweight_vu = { 0.0f, 0.0f, 0.0f, 0.0f }; | |
| 497 vector float vf_next_NSweight_vu; | |
| 498 | |
| 499 // line indices for the src picture | |
| 500 float curr_src_y_upper = 0.0f, next_src_y_upper; | |
| 501 float curr_src_y_lower, next_src_y_lower; | |
| 502 float curr_src_vu = 0.0f, next_src_vu; | |
| 503 | |
| 504 // line indices for the dst picture | |
| 505 unsigned int dst_y=0, dst_vu=0; | |
| 506 | |
| 507 // offset for the v and u plane to handle misalignement | |
| 508 unsigned int curr_lsoff_v = 0, next_lsoff_v; | |
| 509 unsigned int curr_lsoff_u = 0, next_lsoff_u; | |
| 510 | |
| 511 // calculate lower line idices | |
| 512 curr_src_y_lower = ((float)curr_interpl_y_upper+1)*y_scale; | |
| 513 curr_interpl_y_lower = (unsigned int)curr_src_y_lower; | |
| 514 // lower line weight | |
| 515 vf_curr_NSweight_y_lower = spu_splats( curr_src_y_lower-(float)curr_interpl_y_lower ); | |
| 516 | |
| 517 | |
| 518 // start partially double buffered processing | |
| 519 // get initial data, 2 sets of y, 1 set v, 1 set u | |
| 520 mfc_get( y_plane[curr_src_idx], (unsigned int) src_addr_y, src_dbl_linestride_y, RETR_BUF, 0, 0 ); | |
| 521 mfc_get( y_plane[curr_src_idx]+src_dbl_linestride_y, | |
| 522 (unsigned int) src_addr_y+(curr_interpl_y_lower*src_linestride_y), | |
| 523 src_dbl_linestride_y, | |
| 524 RETR_BUF, | |
| 525 0, 0 ); | |
| 526 mfc_get( v_plane[curr_src_idx], (unsigned int) src_addr_v, src_dbl_linestride_vu, RETR_BUF, 0, 0 ); | |
| 527 mfc_get( u_plane[curr_src_idx], (unsigned int) src_addr_u, src_dbl_linestride_vu, RETR_BUF, 0, 0 ); | |
| 528 | |
| 529 // iteration loop | |
| 530 // within each iteration 4 lines y, 2 lines v, 2 lines u are retrieved | |
| 531 // the scaled output is 2 lines y, 1 line v, 1 line u | |
| 532 // the yuv2rgb-converted output is stored to RAM | |
| 533 for( dst_vu=0; dst_vu<(dst_height>>1)-1; dst_vu++ ) { | |
| 534 dst_y = dst_vu<<1; | |
| 535 | |
| 536 // calculate next indices | |
| 537 next_src_vu = ((float)dst_vu+1)*y_scale; | |
| 538 next_src_y_upper = ((float)dst_y+2)*y_scale; | |
| 539 next_src_y_lower = ((float)dst_y+3)*y_scale; | |
| 540 | |
| 541 next_interpl_vu = (unsigned int) next_src_vu; | |
| 542 next_interpl_y_upper = (unsigned int) next_src_y_upper; | |
| 543 next_interpl_y_lower = (unsigned int) next_src_y_lower; | |
| 544 | |
| 545 // calculate weight NORTH-SOUTH | |
| 546 vf_next_NSweight_vu = spu_splats( next_src_vu-(float)next_interpl_vu ); | |
| 547 vf_next_NSweight_y_upper = spu_splats( next_src_y_upper-(float)next_interpl_y_upper ); | |
| 548 vf_next_NSweight_y_lower = spu_splats( next_src_y_lower-(float)next_interpl_y_lower ); | |
| 549 | |
| 550 // get next lines | |
| 551 next_src_idx = curr_src_idx^1; | |
| 552 next_dst_idx = curr_dst_idx^1; | |
| 553 | |
| 554 // 4 lines y | |
| 555 mfc_get( y_plane[next_src_idx], | |
| 556 (unsigned int) src_addr_y+(next_interpl_y_upper*src_linestride_y), | |
| 557 src_dbl_linestride_y, | |
| 558 RETR_BUF+next_src_idx, | |
| 559 0, 0 ); | |
| 560 mfc_get( y_plane[next_src_idx]+src_dbl_linestride_y, | |
| 561 (unsigned int) src_addr_y+(next_interpl_y_lower*src_linestride_y), | |
| 562 src_dbl_linestride_y, | |
| 563 RETR_BUF+next_src_idx, | |
| 564 0, 0 ); | |
| 565 | |
| 566 // 2 lines v | |
| 567 precalc_src_addr_v = src_addr_v+(next_interpl_vu*src_linestride_vu); | |
| 568 next_lsoff_v = ((unsigned int)precalc_src_addr_v)&0x0F; | |
| 569 mfc_get( v_plane[next_src_idx], | |
| 570 ((unsigned int) precalc_src_addr_v)&0xFFFFFFF0, | |
| 571 src_dbl_linestride_vu+(next_lsoff_v<<1), | |
| 572 RETR_BUF+next_src_idx, | |
| 573 0, 0 ); | |
| 574 // 2 lines u | |
| 575 precalc_src_addr_u = src_addr_u+(next_interpl_vu*src_linestride_vu); | |
| 576 next_lsoff_u = ((unsigned int)precalc_src_addr_u)&0x0F; | |
| 577 mfc_get( u_plane[next_src_idx], | |
| 578 ((unsigned int) precalc_src_addr_u)&0xFFFFFFF0, | |
| 579 src_dbl_linestride_vu+(next_lsoff_v<<1), | |
| 580 RETR_BUF+next_src_idx, | |
| 581 0, 0 ); | |
| 582 | |
| 583 DMA_WAIT_TAG( (RETR_BUF+curr_src_idx) ); | |
| 584 | |
| 585 // scaling | |
| 586 // work line y_upper | |
| 587 bilinear_scale_line_w16( y_plane[curr_src_idx], | |
| 588 scaled_y_plane[curr_src_idx], | |
| 589 dst_width, | |
| 590 vf_x_scale, | |
| 591 vf_curr_NSweight_y_upper, | |
| 592 src_linestride_y ); | |
| 593 // work line y_lower | |
| 594 bilinear_scale_line_w16( y_plane[curr_src_idx]+src_dbl_linestride_y, | |
| 595 scaled_y_plane[curr_src_idx]+scaled_src_linestride_y, | |
| 596 dst_width, | |
| 597 vf_x_scale, | |
| 598 vf_curr_NSweight_y_lower, | |
| 599 src_linestride_y ); | |
| 600 // work line v | |
| 601 bilinear_scale_line_w8( v_plane[curr_src_idx]+curr_lsoff_v, | |
| 602 scaled_v_plane[curr_src_idx], | |
| 603 dst_width>>1, | |
| 604 vf_x_scale, | |
| 605 vf_curr_NSweight_vu, | |
| 606 src_linestride_vu ); | |
| 607 // work line u | |
| 608 bilinear_scale_line_w8( u_plane[curr_src_idx]+curr_lsoff_u, | |
| 609 scaled_u_plane[curr_src_idx], | |
| 610 dst_width>>1, | |
| 611 vf_x_scale, | |
| 612 vf_curr_NSweight_vu, | |
| 613 src_linestride_vu ); | |
| 614 | |
| 615 //--------------------------------------------------------------------------------------------- | |
| 616 DMA_WAIT_TAG( (STR_BUF+curr_dst_idx) ); | |
| 617 | |
| 618 // Perform three DMA transfers to 3 different locations in the main memory! | |
| 619 // dst_width: Pixel width of destination image | |
| 620 // dst_addr: Destination address in main memory | |
| 621 // dst_vu: Counter which is incremented one by one | |
| 622 // dst_y: Counter which is twice larger than dst_vu (dst_y = 2*dst_vu) | |
| 623 | |
| 624 mfc_put( scaled_y_plane[curr_src_idx], // What from local store (addr) | |
| 625 (unsigned int) dst_addr_main_memory_y + (dst_vu*dst_dbl_linestride_y), // Destination in main memory (addr) | |
| 626 dst_dbl_linestride_y, // Two Y lines (depending on the widht of the destination resolution) | |
| 627 STR_BUF+curr_dst_idx, // Tag | |
| 628 0, 0 ); | |
| 629 | |
| 630 mfc_put( scaled_v_plane[curr_src_idx], // What from local store (addr) | |
| 631 (unsigned int) dst_addr_main_memory_v + (dst_vu*dst_dbl_linestride_vu), // Destination in main memory (addr) | |
| 632 dst_dbl_linestride_vu, // Two V lines (depending on the widht of the destination resolution) | |
| 633 STR_BUF+curr_dst_idx, // Tag | |
| 634 0, 0 ); | |
| 635 | |
| 636 mfc_put( scaled_u_plane[curr_src_idx], // What from local store (addr) | |
| 637 (unsigned int) dst_addr_main_memory_u + (dst_vu*dst_dbl_linestride_vu), // Destination in main memory (addr) | |
| 638 dst_dbl_linestride_vu, // Two U lines (depending on the widht of the destination resolution) | |
| 639 STR_BUF+curr_dst_idx, // Tag | |
| 640 0, 0 ); | |
| 641 //--------------------------------------------------------------------------------------------- | |
| 642 | |
| 643 | |
| 644 // update for next cycle | |
| 645 curr_src_idx = next_src_idx; | |
| 646 curr_dst_idx = next_dst_idx; | |
| 647 | |
| 648 curr_interpl_y_upper = next_interpl_y_upper; | |
| 649 curr_interpl_y_lower = next_interpl_y_lower; | |
| 650 curr_interpl_vu = next_interpl_vu; | |
| 651 | |
| 652 vf_curr_NSweight_y_upper = vf_curr_NSweight_y_upper; | |
| 653 vf_curr_NSweight_y_lower = vf_curr_NSweight_y_lower; | |
| 654 vf_curr_NSweight_vu = vf_next_NSweight_vu; | |
| 655 | |
| 656 curr_src_y_upper = next_src_y_upper; | |
| 657 curr_src_y_lower = next_src_y_lower; | |
| 658 curr_src_vu = next_src_vu; | |
| 659 | |
| 660 curr_lsoff_v = next_lsoff_v; | |
| 661 curr_lsoff_u = next_lsoff_u; | |
| 662 } | |
| 663 | |
| 664 | |
| 665 | |
| 666 DMA_WAIT_TAG( (RETR_BUF+curr_src_idx) ); | |
| 667 | |
| 668 // scaling | |
| 669 // work line y_upper | |
| 670 bilinear_scale_line_w16( y_plane[curr_src_idx], | |
| 671 scaled_y_plane[curr_src_idx], | |
| 672 dst_width, | |
| 673 vf_x_scale, | |
| 674 vf_curr_NSweight_y_upper, | |
| 675 src_linestride_y ); | |
| 676 // work line y_lower | |
| 677 bilinear_scale_line_w16( y_plane[curr_src_idx]+src_dbl_linestride_y, | |
| 678 scaled_y_plane[curr_src_idx]+scaled_src_linestride_y, | |
| 679 dst_width, | |
| 680 vf_x_scale, | |
| 681 vf_curr_NSweight_y_lower, | |
| 682 src_linestride_y ); | |
| 683 // work line v | |
| 684 bilinear_scale_line_w8( v_plane[curr_src_idx]+curr_lsoff_v, | |
| 685 scaled_v_plane[curr_src_idx], | |
| 686 dst_width>>1, | |
| 687 vf_x_scale, | |
| 688 vf_curr_NSweight_vu, | |
| 689 src_linestride_vu ); | |
| 690 // work line u | |
| 691 bilinear_scale_line_w8( u_plane[curr_src_idx]+curr_lsoff_u, | |
| 692 scaled_u_plane[curr_src_idx], | |
| 693 dst_width>>1, | |
| 694 vf_x_scale, | |
| 695 vf_curr_NSweight_vu, | |
| 696 src_linestride_vu ); | |
| 697 | |
| 698 //--------------------------------------------------------------------------------------------- | |
| 699 DMA_WAIT_TAG( (STR_BUF+curr_dst_idx) ); | |
| 700 | |
| 701 // Perform three DMA transfers to 3 different locations in the main memory! | |
| 702 // dst_width: Pixel width of destination image | |
| 703 // dst_addr: Destination address in main memory | |
| 704 // dst_vu: Counter which is incremented one by one | |
| 705 // dst_y: Counter which is twice larger than dst_vu (dst_y = 2*dst_vu) | |
| 706 | |
| 707 mfc_put( scaled_y_plane[curr_src_idx], // What from local store (addr) | |
| 708 (unsigned int) dst_addr_main_memory_y + (dst_vu*dst_dbl_linestride_y), // Destination in main memory (addr) | |
| 709 dst_dbl_linestride_y, // Two Y lines (depending on the widht of the destination resolution) | |
| 710 STR_BUF+curr_dst_idx, // Tag | |
| 711 0, 0 ); | |
| 712 | |
| 713 mfc_put( scaled_v_plane[curr_src_idx], // What from local store (addr) | |
| 714 (unsigned int) dst_addr_main_memory_v + (dst_vu*dst_dbl_linestride_vu), // Destination in main memory (addr) | |
| 715 dst_dbl_linestride_vu, // Two V lines (depending on the widht of the destination resolution) | |
| 716 STR_BUF+curr_dst_idx, // Tag | |
| 717 0, 0 ); | |
| 718 | |
| 719 mfc_put( scaled_u_plane[curr_src_idx], // What from local store (addr) | |
| 720 (unsigned int) dst_addr_main_memory_u + (dst_vu*dst_dbl_linestride_vu), // Destination in main memory (addr) | |
| 721 dst_dbl_linestride_vu, // Two U lines (depending on the widht of the destination resolution) | |
| 722 STR_BUF+curr_dst_idx, // Tag | |
| 723 0, 0 ); | |
| 724 | |
| 725 // wait for completion | |
| 726 DMA_WAIT_TAG( (STR_BUF+curr_dst_idx) ); | |
| 727 //--------------------------------------------------------------------------------------------- | |
| 728 } | |
| 729 | |
| 730 | |
| 731 /* | |
| 732 * scale_srcw32_dstw16() | |
| 733 * | |
| 734 * processes an input image of width 32 | |
| 735 * scaling is done to a width 16 | |
| 736 * yuv2rgb conversion on a width of 16 | |
| 737 * result stored in RAM | |
| 738 */ | |
| 739 void scale_srcw32_dstw16() { | |
| 740 // extract parameters | |
| 741 unsigned char* dst_addr = (unsigned char *)parms.dstBuffer; | |
| 742 | |
| 743 unsigned int src_width = parms.src_pixel_width; | |
| 744 unsigned int src_height = parms.src_pixel_height; | |
| 745 unsigned int dst_width = parms.dst_pixel_width; | |
| 746 unsigned int dst_height = parms.dst_pixel_height; | |
| 747 | |
| 748 // YVU | |
| 749 unsigned int src_linestride_y = src_width; | |
| 750 unsigned int src_dbl_linestride_y = src_width<<1; | |
| 751 unsigned int src_linestride_vu = src_width>>1; | |
| 752 unsigned int src_dbl_linestride_vu = src_width; | |
| 753 // scaled YVU | |
| 754 unsigned int scaled_src_linestride_y = dst_width; | |
| 755 | |
| 756 // ram addresses | |
| 757 unsigned char* src_addr_y = parms.y_plane; | |
| 758 unsigned char* src_addr_v = parms.v_plane; | |
| 759 unsigned char* src_addr_u = parms.u_plane; | |
| 760 | |
| 761 unsigned int dst_picture_size = dst_width*dst_height; | |
| 762 | |
| 763 // Sizes for destination | |
| 764 unsigned int dst_dbl_linestride_y = dst_width<<1; | |
| 765 unsigned int dst_dbl_linestride_vu = dst_width>>1; | |
| 766 | |
| 767 // Perform address calculation for Y, V and U in main memory with dst_addr as base | |
| 768 unsigned char* dst_addr_main_memory_y = dst_addr; | |
| 769 unsigned char* dst_addr_main_memory_v = dst_addr + dst_picture_size; | |
| 770 unsigned char* dst_addr_main_memory_u = dst_addr_main_memory_v +(dst_picture_size>>2); | |
| 771 | |
| 772 // calculate scale factors | |
| 773 vector float vf_x_scale = spu_splats( (float)src_width/(float)dst_width ); | |
| 774 float y_scale = (float)src_height/(float)dst_height; | |
| 775 | |
| 776 // double buffered processing | |
| 777 // buffer switching | |
| 778 unsigned int curr_src_idx = 0; | |
| 779 unsigned int curr_dst_idx = 0; | |
| 780 unsigned int next_src_idx, next_dst_idx; | |
| 781 | |
| 782 // 2 lines y as output, upper and lowerline | |
| 783 unsigned int curr_interpl_y_upper = 0; | |
| 784 unsigned int next_interpl_y_upper; | |
| 785 unsigned int curr_interpl_y_lower, next_interpl_y_lower; | |
| 786 // only 1 line v/u output, both planes have the same dimension | |
| 787 unsigned int curr_interpl_vu = 0; | |
| 788 unsigned int next_interpl_vu; | |
| 789 | |
| 790 // weights, calculated in every loop iteration | |
| 791 vector float vf_curr_NSweight_y_upper = { 0.0f, 0.0f, 0.0f, 0.0f }; | |
| 792 vector float vf_next_NSweight_y_upper; | |
| 793 vector float vf_curr_NSweight_y_lower, vf_next_NSweight_y_lower; | |
| 794 vector float vf_curr_NSweight_vu = { 0.0f, 0.0f, 0.0f, 0.0f }; | |
| 795 vector float vf_next_NSweight_vu; | |
| 796 | |
| 797 // line indices for the src picture | |
| 798 float curr_src_y_upper = 0.0f, next_src_y_upper; | |
| 799 float curr_src_y_lower, next_src_y_lower; | |
| 800 float curr_src_vu = 0.0f, next_src_vu; | |
| 801 | |
| 802 // line indices for the dst picture | |
| 803 unsigned int dst_y=0, dst_vu=0; | |
| 804 | |
| 805 // calculate lower line idices | |
| 806 curr_src_y_lower = ((float)curr_interpl_y_upper+1)*y_scale; | |
| 807 curr_interpl_y_lower = (unsigned int)curr_src_y_lower; | |
| 808 // lower line weight | |
| 809 vf_curr_NSweight_y_lower = spu_splats( curr_src_y_lower-(float)curr_interpl_y_lower ); | |
| 810 | |
| 811 | |
| 812 // start partially double buffered processing | |
| 813 // get initial data, 2 sets of y, 1 set v, 1 set u | |
| 814 mfc_get( y_plane[curr_src_idx], (unsigned int) src_addr_y, src_dbl_linestride_y, RETR_BUF, 0, 0 ); | |
| 815 mfc_get( y_plane[curr_src_idx]+src_dbl_linestride_y, | |
| 816 (unsigned int) src_addr_y+(curr_interpl_y_lower*src_linestride_y), | |
| 817 src_dbl_linestride_y, | |
| 818 RETR_BUF, | |
| 819 0, 0 ); | |
| 820 mfc_get( v_plane[curr_src_idx], (unsigned int) src_addr_v, src_dbl_linestride_vu, RETR_BUF, 0, 0 ); | |
| 821 mfc_get( u_plane[curr_src_idx], (unsigned int) src_addr_u, src_dbl_linestride_vu, RETR_BUF, 0, 0 ); | |
| 822 | |
| 823 // iteration loop | |
| 824 // within each iteration 4 lines y, 2 lines v, 2 lines u are retrieved | |
| 825 // the scaled output is 2 lines y, 1 line v, 1 line u | |
| 826 // the yuv2rgb-converted output is stored to RAM | |
| 827 for( dst_vu=0; dst_vu<(dst_height>>1)-1; dst_vu++ ) { | |
| 828 dst_y = dst_vu<<1; | |
| 829 | |
| 830 // calculate next indices | |
| 831 next_src_vu = ((float)dst_vu+1)*y_scale; | |
| 832 next_src_y_upper = ((float)dst_y+2)*y_scale; | |
| 833 next_src_y_lower = ((float)dst_y+3)*y_scale; | |
| 834 | |
| 835 next_interpl_vu = (unsigned int) next_src_vu; | |
| 836 next_interpl_y_upper = (unsigned int) next_src_y_upper; | |
| 837 next_interpl_y_lower = (unsigned int) next_src_y_lower; | |
| 838 | |
| 839 // calculate weight NORTH-SOUTH | |
| 840 vf_next_NSweight_vu = spu_splats( next_src_vu-(float)next_interpl_vu ); | |
| 841 vf_next_NSweight_y_upper = spu_splats( next_src_y_upper-(float)next_interpl_y_upper ); | |
| 842 vf_next_NSweight_y_lower = spu_splats( next_src_y_lower-(float)next_interpl_y_lower ); | |
| 843 | |
| 844 // get next lines | |
| 845 next_src_idx = curr_src_idx^1; | |
| 846 next_dst_idx = curr_dst_idx^1; | |
| 847 | |
| 848 // 4 lines y | |
| 849 mfc_get( y_plane[next_src_idx], | |
| 850 (unsigned int) src_addr_y+(next_interpl_y_upper*src_linestride_y), | |
| 851 src_dbl_linestride_y, | |
| 852 RETR_BUF+next_src_idx, | |
| 853 0, 0 ); | |
| 854 mfc_get( y_plane[next_src_idx]+src_dbl_linestride_y, | |
| 855 (unsigned int) src_addr_y+(next_interpl_y_lower*src_linestride_y), | |
| 856 src_dbl_linestride_y, | |
| 857 RETR_BUF+next_src_idx, | |
| 858 0, 0 ); | |
| 859 | |
| 860 // 2 lines v | |
| 861 mfc_get( v_plane[next_src_idx], | |
| 862 (unsigned int) src_addr_v+(next_interpl_vu*src_linestride_vu), | |
| 863 src_dbl_linestride_vu, | |
| 864 RETR_BUF+next_src_idx, | |
| 865 0, 0 ); | |
| 866 // 2 lines u | |
| 867 mfc_get( u_plane[next_src_idx], | |
| 868 (unsigned int) src_addr_u+(next_interpl_vu*src_linestride_vu), | |
| 869 src_dbl_linestride_vu, | |
| 870 RETR_BUF+next_src_idx, | |
| 871 0, 0 ); | |
| 872 | |
| 873 DMA_WAIT_TAG( (RETR_BUF+curr_src_idx) ); | |
| 874 | |
| 875 // scaling | |
| 876 // work line y_upper | |
| 877 bilinear_scale_line_w16( y_plane[curr_src_idx], | |
| 878 scaled_y_plane[curr_src_idx], | |
| 879 dst_width, | |
| 880 vf_x_scale, | |
| 881 vf_curr_NSweight_y_upper, | |
| 882 src_linestride_y ); | |
| 883 // work line y_lower | |
| 884 bilinear_scale_line_w16( y_plane[curr_src_idx]+src_dbl_linestride_y, | |
| 885 scaled_y_plane[curr_src_idx]+scaled_src_linestride_y, | |
| 886 dst_width, | |
| 887 vf_x_scale, | |
| 888 vf_curr_NSweight_y_lower, | |
| 889 src_linestride_y ); | |
| 890 // work line v | |
| 891 bilinear_scale_line_w16( v_plane[curr_src_idx], | |
| 892 scaled_v_plane[curr_src_idx], | |
| 893 dst_width>>1, | |
| 894 vf_x_scale, | |
| 895 vf_curr_NSweight_vu, | |
| 896 src_linestride_vu ); | |
| 897 // work line u | |
| 898 bilinear_scale_line_w16( u_plane[curr_src_idx], | |
| 899 scaled_u_plane[curr_src_idx], | |
| 900 dst_width>>1, | |
| 901 vf_x_scale, | |
| 902 vf_curr_NSweight_vu, | |
| 903 src_linestride_vu ); | |
| 904 | |
| 905 //--------------------------------------------------------------------------------------------- | |
| 906 DMA_WAIT_TAG( (STR_BUF+curr_dst_idx) ); | |
| 907 | |
| 908 // Perform three DMA transfers to 3 different locations in the main memory! | |
| 909 // dst_width: Pixel width of destination image | |
| 910 // dst_addr: Destination address in main memory | |
| 911 // dst_vu: Counter which is incremented one by one | |
| 912 // dst_y: Counter which is twice larger than dst_vu (dst_y = 2*dst_vu) | |
| 913 | |
| 914 mfc_put( scaled_y_plane[curr_src_idx], // What from local store (addr) | |
| 915 (unsigned int) dst_addr_main_memory_y + (dst_vu*dst_dbl_linestride_y), // Destination in main memory (addr) | |
| 916 dst_dbl_linestride_y, // Two Y lines (depending on the widht of the destination resolution) | |
| 917 STR_BUF+curr_dst_idx, // Tag | |
| 918 0, 0 ); | |
| 919 | |
| 920 mfc_put( scaled_v_plane[curr_src_idx], // What from local store (addr) | |
| 921 (unsigned int) dst_addr_main_memory_v + (dst_vu*dst_dbl_linestride_vu), // Destination in main memory (addr) | |
| 922 dst_dbl_linestride_vu, // Two V lines (depending on the widht of the destination resolution) | |
| 923 STR_BUF+curr_dst_idx, // Tag | |
| 924 0, 0 ); | |
| 925 | |
| 926 mfc_put( scaled_u_plane[curr_src_idx], // What from local store (addr) | |
| 927 (unsigned int) dst_addr_main_memory_u + (dst_vu*dst_dbl_linestride_vu), // Destination in main memory (addr) | |
| 928 dst_dbl_linestride_vu, // Two U lines (depending on the widht of the destination resolution) | |
| 929 STR_BUF+curr_dst_idx, // Tag | |
| 930 0, 0 ); | |
| 931 //--------------------------------------------------------------------------------------------- | |
| 932 | |
| 933 | |
| 934 // update for next cycle | |
| 935 curr_src_idx = next_src_idx; | |
| 936 curr_dst_idx = next_dst_idx; | |
| 937 | |
| 938 curr_interpl_y_upper = next_interpl_y_upper; | |
| 939 curr_interpl_y_lower = next_interpl_y_lower; | |
| 940 curr_interpl_vu = next_interpl_vu; | |
| 941 | |
| 942 vf_curr_NSweight_y_upper = vf_curr_NSweight_y_upper; | |
| 943 vf_curr_NSweight_y_lower = vf_curr_NSweight_y_lower; | |
| 944 vf_curr_NSweight_vu = vf_next_NSweight_vu; | |
| 945 | |
| 946 curr_src_y_upper = next_src_y_upper; | |
| 947 curr_src_y_lower = next_src_y_lower; | |
| 948 curr_src_vu = next_src_vu; | |
| 949 } | |
| 950 | |
| 951 | |
| 952 | |
| 953 DMA_WAIT_TAG( (RETR_BUF+curr_src_idx) ); | |
| 954 | |
| 955 // scaling | |
| 956 // work line y_upper | |
| 957 bilinear_scale_line_w16( y_plane[curr_src_idx], | |
| 958 scaled_y_plane[curr_src_idx], | |
| 959 dst_width, | |
| 960 vf_x_scale, | |
| 961 vf_curr_NSweight_y_upper, | |
| 962 src_linestride_y ); | |
| 963 // work line y_lower | |
| 964 bilinear_scale_line_w16( y_plane[curr_src_idx]+src_dbl_linestride_y, | |
| 965 scaled_y_plane[curr_src_idx]+scaled_src_linestride_y, | |
| 966 dst_width, | |
| 967 vf_x_scale, | |
| 968 vf_curr_NSweight_y_lower, | |
| 969 src_linestride_y ); | |
| 970 // work line v | |
| 971 bilinear_scale_line_w16( v_plane[curr_src_idx], | |
| 972 scaled_v_plane[curr_src_idx], | |
| 973 dst_width>>1, | |
| 974 vf_x_scale, | |
| 975 vf_curr_NSweight_vu, | |
| 976 src_linestride_vu ); | |
| 977 // work line u | |
| 978 bilinear_scale_line_w16( u_plane[curr_src_idx], | |
| 979 scaled_u_plane[curr_src_idx], | |
| 980 dst_width>>1, | |
| 981 vf_x_scale, | |
| 982 vf_curr_NSweight_vu, | |
| 983 src_linestride_vu ); | |
| 984 | |
| 985 | |
| 986 //--------------------------------------------------------------------------------------------- | |
| 987 DMA_WAIT_TAG( (STR_BUF+curr_dst_idx) ); | |
| 988 | |
| 989 // Perform three DMA transfers to 3 different locations in the main memory! | |
| 990 // dst_width: Pixel width of destination image | |
| 991 // dst_addr: Destination address in main memory | |
| 992 // dst_vu: Counter which is incremented one by one | |
| 993 // dst_y: Counter which is twice larger than dst_vu (dst_y = 2*dst_vu) | |
| 994 | |
| 995 mfc_put( scaled_y_plane[curr_src_idx], // What from local store (addr) | |
| 996 (unsigned int) dst_addr_main_memory_y + (dst_vu*dst_dbl_linestride_y), // Destination in main memory (addr) | |
| 997 dst_dbl_linestride_y, // Two Y lines (depending on the widht of the destination resolution) | |
| 998 STR_BUF+curr_dst_idx, // Tag | |
| 999 0, 0 ); | |
| 1000 | |
| 1001 mfc_put( scaled_v_plane[curr_src_idx], // What from local store (addr) | |
| 1002 (unsigned int) dst_addr_main_memory_v + (dst_vu*dst_dbl_linestride_vu), // Destination in main memory (addr) | |
| 1003 dst_dbl_linestride_vu, // Two V lines (depending on the widht of the destination resolution) | |
| 1004 STR_BUF+curr_dst_idx, // Tag | |
| 1005 0, 0 ); | |
| 1006 | |
| 1007 mfc_put( scaled_u_plane[curr_src_idx], // What from local store (addr) | |
| 1008 (unsigned int) dst_addr_main_memory_u + (dst_vu*dst_dbl_linestride_vu), // Destination in main memory (addr) | |
| 1009 dst_dbl_linestride_vu, // Two U lines (depending on the widht of the destination resolution) | |
| 1010 STR_BUF+curr_dst_idx, // Tag | |
| 1011 0, 0 ); | |
| 1012 | |
| 1013 // wait for completion | |
| 1014 DMA_WAIT_TAG( (STR_BUF+curr_dst_idx) ); | |
| 1015 //--------------------------------------------------------------------------------------------- | |
| 1016 } | |
| 1017 | |
| 1018 | |
| 1019 /** | |
| 1020 * scale_srcw32_dstw32() | |
| 1021 * | |
| 1022 * processes an input image of width 32 | |
| 1023 * scaling is done to a width 32 | |
| 1024 * yuv2rgb conversion on a width of 32 | |
| 1025 * result stored in RAM | |
| 1026 */ | |
| 1027 void scale_srcw32_dstw32() { | |
| 1028 // extract parameters | |
| 1029 unsigned char* dst_addr = (unsigned char *)parms.dstBuffer; | |
| 1030 | |
| 1031 unsigned int src_width = parms.src_pixel_width; | |
| 1032 unsigned int src_height = parms.src_pixel_height; | |
| 1033 unsigned int dst_width = parms.dst_pixel_width; | |
| 1034 unsigned int dst_height = parms.dst_pixel_height; | |
| 1035 | |
| 1036 // YVU | |
| 1037 unsigned int src_linestride_y = src_width; | |
| 1038 unsigned int src_dbl_linestride_y = src_width<<1; | |
| 1039 unsigned int src_linestride_vu = src_width>>1; | |
| 1040 unsigned int src_dbl_linestride_vu = src_width; | |
| 1041 | |
| 1042 // scaled YVU | |
| 1043 unsigned int scaled_src_linestride_y = dst_width; | |
| 1044 | |
| 1045 // ram addresses | |
| 1046 unsigned char* src_addr_y = parms.y_plane; | |
| 1047 unsigned char* src_addr_v = parms.v_plane; | |
| 1048 unsigned char* src_addr_u = parms.u_plane; | |
| 1049 | |
| 1050 unsigned int dst_picture_size = dst_width*dst_height; | |
| 1051 | |
| 1052 // Sizes for destination | |
| 1053 unsigned int dst_dbl_linestride_y = dst_width<<1; | |
| 1054 unsigned int dst_dbl_linestride_vu = dst_width>>1; | |
| 1055 | |
| 1056 // Perform address calculation for Y, V and U in main memory with dst_addr as base | |
| 1057 unsigned char* dst_addr_main_memory_y = dst_addr; | |
| 1058 unsigned char* dst_addr_main_memory_v = dst_addr + dst_picture_size; | |
| 1059 unsigned char* dst_addr_main_memory_u = dst_addr_main_memory_v +(dst_picture_size>>2); | |
| 1060 | |
| 1061 // calculate scale factors | |
| 1062 vector float vf_x_scale = spu_splats( (float)src_width/(float)dst_width ); | |
| 1063 float y_scale = (float)src_height/(float)dst_height; | |
| 1064 | |
| 1065 // double buffered processing | |
| 1066 // buffer switching | |
| 1067 unsigned int curr_src_idx = 0; | |
| 1068 unsigned int curr_dst_idx = 0; | |
| 1069 unsigned int next_src_idx, next_dst_idx; | |
| 1070 | |
| 1071 // 2 lines y as output, upper and lowerline | |
| 1072 unsigned int curr_interpl_y_upper = 0; | |
| 1073 unsigned int next_interpl_y_upper; | |
| 1074 unsigned int curr_interpl_y_lower, next_interpl_y_lower; | |
| 1075 // only 1 line v/u output, both planes have the same dimension | |
| 1076 unsigned int curr_interpl_vu = 0; | |
| 1077 unsigned int next_interpl_vu; | |
| 1078 | |
| 1079 // weights, calculated in every loop iteration | |
| 1080 vector float vf_curr_NSweight_y_upper = { 0.0f, 0.0f, 0.0f, 0.0f }; | |
| 1081 vector float vf_next_NSweight_y_upper; | |
| 1082 vector float vf_curr_NSweight_y_lower, vf_next_NSweight_y_lower; | |
| 1083 vector float vf_curr_NSweight_vu = { 0.0f, 0.0f, 0.0f, 0.0f }; | |
| 1084 vector float vf_next_NSweight_vu; | |
| 1085 | |
| 1086 // line indices for the src picture | |
| 1087 float curr_src_y_upper = 0.0f, next_src_y_upper; | |
| 1088 float curr_src_y_lower, next_src_y_lower; | |
| 1089 float curr_src_vu = 0.0f, next_src_vu; | |
| 1090 | |
| 1091 // line indices for the dst picture | |
| 1092 unsigned int dst_y=0, dst_vu=0; | |
| 1093 | |
| 1094 // calculate lower line idices | |
| 1095 curr_src_y_lower = ((float)curr_interpl_y_upper+1)*y_scale; | |
| 1096 curr_interpl_y_lower = (unsigned int)curr_src_y_lower; | |
| 1097 // lower line weight | |
| 1098 vf_curr_NSweight_y_lower = spu_splats( curr_src_y_lower-(float)curr_interpl_y_lower ); | |
| 1099 | |
| 1100 | |
| 1101 // start partially double buffered processing | |
| 1102 // get initial data, 2 sets of y, 1 set v, 1 set u | |
| 1103 mfc_get( y_plane[curr_src_idx], (unsigned int) src_addr_y, src_dbl_linestride_y, RETR_BUF, 0, 0 ); | |
| 1104 mfc_get( y_plane[curr_src_idx]+src_dbl_linestride_y, | |
| 1105 (unsigned int) src_addr_y+(curr_interpl_y_lower*src_linestride_y), | |
| 1106 src_dbl_linestride_y, | |
| 1107 RETR_BUF, | |
| 1108 0, 0 ); | |
| 1109 mfc_get( v_plane[curr_src_idx], (unsigned int) src_addr_v, src_dbl_linestride_vu, RETR_BUF, 0, 0 ); | |
| 1110 mfc_get( u_plane[curr_src_idx], (unsigned int) src_addr_u, src_dbl_linestride_vu, RETR_BUF, 0, 0 ); | |
| 1111 | |
| 1112 // iteration loop | |
| 1113 // within each iteration 4 lines y, 2 lines v, 2 lines u are retrieved | |
| 1114 // the scaled output is 2 lines y, 1 line v, 1 line u | |
| 1115 // the yuv2rgb-converted output is stored to RAM | |
| 1116 for( dst_vu=0; dst_vu<(dst_height>>1)-1; dst_vu++ ) { | |
| 1117 dst_y = dst_vu<<1; | |
| 1118 | |
| 1119 // calculate next indices | |
| 1120 next_src_vu = ((float)dst_vu+1)*y_scale; | |
| 1121 next_src_y_upper = ((float)dst_y+2)*y_scale; | |
| 1122 next_src_y_lower = ((float)dst_y+3)*y_scale; | |
| 1123 | |
| 1124 next_interpl_vu = (unsigned int) next_src_vu; | |
| 1125 next_interpl_y_upper = (unsigned int) next_src_y_upper; | |
| 1126 next_interpl_y_lower = (unsigned int) next_src_y_lower; | |
| 1127 | |
| 1128 // calculate weight NORTH-SOUTH | |
| 1129 vf_next_NSweight_vu = spu_splats( next_src_vu-(float)next_interpl_vu ); | |
| 1130 vf_next_NSweight_y_upper = spu_splats( next_src_y_upper-(float)next_interpl_y_upper ); | |
| 1131 vf_next_NSweight_y_lower = spu_splats( next_src_y_lower-(float)next_interpl_y_lower ); | |
| 1132 | |
| 1133 // get next lines | |
| 1134 next_src_idx = curr_src_idx^1; | |
| 1135 next_dst_idx = curr_dst_idx^1; | |
| 1136 | |
| 1137 // 4 lines y | |
| 1138 mfc_get( y_plane[next_src_idx], | |
| 1139 (unsigned int) src_addr_y+(next_interpl_y_upper*src_linestride_y), | |
| 1140 src_dbl_linestride_y, | |
| 1141 RETR_BUF+next_src_idx, | |
| 1142 0, 0 ); | |
| 1143 mfc_get( y_plane[next_src_idx]+src_dbl_linestride_y, | |
| 1144 (unsigned int) src_addr_y+(next_interpl_y_lower*src_linestride_y), | |
| 1145 src_dbl_linestride_y, | |
| 1146 RETR_BUF+next_src_idx, | |
| 1147 0, 0 ); | |
| 1148 | |
| 1149 // 2 lines v | |
| 1150 mfc_get( v_plane[next_src_idx], | |
| 1151 (unsigned int) src_addr_v+(next_interpl_vu*src_linestride_vu), | |
| 1152 src_dbl_linestride_vu, | |
| 1153 RETR_BUF+next_src_idx, | |
| 1154 0, 0 ); | |
| 1155 // 2 lines u | |
| 1156 mfc_get( u_plane[next_src_idx], | |
| 1157 (unsigned int) src_addr_u+(next_interpl_vu*src_linestride_vu), | |
| 1158 src_dbl_linestride_vu, | |
| 1159 RETR_BUF+next_src_idx, | |
| 1160 0, 0 ); | |
| 1161 | |
| 1162 DMA_WAIT_TAG( (RETR_BUF+curr_src_idx) ); | |
| 1163 | |
| 1164 // scaling | |
| 1165 // work line y_upper | |
| 1166 bilinear_scale_line_w16( y_plane[curr_src_idx], | |
| 1167 scaled_y_plane[curr_src_idx], | |
| 1168 dst_width, | |
| 1169 vf_x_scale, | |
| 1170 vf_curr_NSweight_y_upper, | |
| 1171 src_linestride_y ); | |
| 1172 // work line y_lower | |
| 1173 bilinear_scale_line_w16( y_plane[curr_src_idx]+src_dbl_linestride_y, | |
| 1174 scaled_y_plane[curr_src_idx]+scaled_src_linestride_y, | |
| 1175 dst_width, | |
| 1176 vf_x_scale, | |
| 1177 vf_curr_NSweight_y_lower, | |
| 1178 src_linestride_y ); | |
| 1179 // work line v | |
| 1180 bilinear_scale_line_w16( v_plane[curr_src_idx], | |
| 1181 scaled_v_plane[curr_src_idx], | |
| 1182 dst_width>>1, | |
| 1183 vf_x_scale, | |
| 1184 vf_curr_NSweight_vu, | |
| 1185 src_linestride_vu ); | |
| 1186 // work line u | |
| 1187 bilinear_scale_line_w16( u_plane[curr_src_idx], | |
| 1188 scaled_u_plane[curr_src_idx], | |
| 1189 dst_width>>1, | |
| 1190 vf_x_scale, | |
| 1191 vf_curr_NSweight_vu, | |
| 1192 src_linestride_vu ); | |
| 1193 | |
| 1194 | |
| 1195 | |
| 1196 // Store the result back to main memory into a destination buffer in YUV format | |
| 1197 //--------------------------------------------------------------------------------------------- | |
| 1198 DMA_WAIT_TAG( (STR_BUF+curr_dst_idx) ); | |
| 1199 | |
| 1200 // Perform three DMA transfers to 3 different locations in the main memory! | |
| 1201 // dst_width: Pixel width of destination image | |
| 1202 // dst_addr: Destination address in main memory | |
| 1203 // dst_vu: Counter which is incremented one by one | |
| 1204 // dst_y: Counter which is twice larger than dst_vu (dst_y = 2*dst_vu) | |
| 1205 | |
| 1206 mfc_put( scaled_y_plane[curr_src_idx], // What from local store (addr) | |
| 1207 (unsigned int) dst_addr_main_memory_y + (dst_vu*dst_dbl_linestride_y), // Destination in main memory (addr) | |
| 1208 dst_dbl_linestride_y, // Two Y lines (depending on the widht of the destination resolution) | |
| 1209 STR_BUF+curr_dst_idx, // Tag | |
| 1210 0, 0 ); | |
| 1211 | |
| 1212 mfc_put( scaled_v_plane[curr_src_idx], // What from local store (addr) | |
| 1213 (unsigned int) dst_addr_main_memory_v + (dst_vu*dst_dbl_linestride_vu), // Destination in main memory (addr) | |
| 1214 dst_dbl_linestride_vu, // Two V lines (depending on the widht of the destination resolution) | |
| 1215 STR_BUF+curr_dst_idx, // Tag | |
| 1216 0, 0 ); | |
| 1217 | |
| 1218 mfc_put( scaled_u_plane[curr_src_idx], // What from local store (addr) | |
| 1219 (unsigned int) dst_addr_main_memory_u + (dst_vu*dst_dbl_linestride_vu), // Destination in main memory (addr) | |
| 1220 dst_dbl_linestride_vu, // Two U lines (depending on the widht of the destination resolution) | |
| 1221 STR_BUF+curr_dst_idx, // Tag | |
| 1222 0, 0 ); | |
| 1223 //--------------------------------------------------------------------------------------------- | |
| 1224 | |
| 1225 | |
| 1226 // update for next cycle | |
| 1227 curr_src_idx = next_src_idx; | |
| 1228 curr_dst_idx = next_dst_idx; | |
| 1229 | |
| 1230 curr_interpl_y_upper = next_interpl_y_upper; | |
| 1231 curr_interpl_y_lower = next_interpl_y_lower; | |
| 1232 curr_interpl_vu = next_interpl_vu; | |
| 1233 | |
| 1234 vf_curr_NSweight_y_upper = vf_curr_NSweight_y_upper; | |
| 1235 vf_curr_NSweight_y_lower = vf_curr_NSweight_y_lower; | |
| 1236 vf_curr_NSweight_vu = vf_next_NSweight_vu; | |
| 1237 | |
| 1238 curr_src_y_upper = next_src_y_upper; | |
| 1239 curr_src_y_lower = next_src_y_lower; | |
| 1240 curr_src_vu = next_src_vu; | |
| 1241 } | |
| 1242 | |
| 1243 | |
| 1244 | |
| 1245 DMA_WAIT_TAG( (RETR_BUF+curr_src_idx) ); | |
| 1246 | |
| 1247 // scaling | |
| 1248 // work line y_upper | |
| 1249 bilinear_scale_line_w16( y_plane[curr_src_idx], | |
| 1250 scaled_y_plane[curr_src_idx], | |
| 1251 dst_width, | |
| 1252 vf_x_scale, | |
| 1253 vf_curr_NSweight_y_upper, | |
| 1254 src_linestride_y ); | |
| 1255 // work line y_lower | |
| 1256 bilinear_scale_line_w16( y_plane[curr_src_idx]+src_dbl_linestride_y, | |
| 1257 scaled_y_plane[curr_src_idx]+scaled_src_linestride_y, | |
| 1258 dst_width, | |
| 1259 vf_x_scale, | |
| 1260 vf_curr_NSweight_y_lower, | |
| 1261 src_linestride_y ); | |
| 1262 // work line v | |
| 1263 bilinear_scale_line_w16( v_plane[curr_src_idx], | |
| 1264 scaled_v_plane[curr_src_idx], | |
| 1265 dst_width>>1, | |
| 1266 vf_x_scale, | |
| 1267 vf_curr_NSweight_vu, | |
| 1268 src_linestride_vu ); | |
| 1269 // work line u | |
| 1270 bilinear_scale_line_w16( u_plane[curr_src_idx], | |
| 1271 scaled_u_plane[curr_src_idx], | |
| 1272 dst_width>>1, | |
| 1273 vf_x_scale, | |
| 1274 vf_curr_NSweight_vu, | |
| 1275 src_linestride_vu ); | |
| 1276 | |
| 1277 | |
| 1278 // Store the result back to main memory into a destination buffer in YUV format | |
| 1279 //--------------------------------------------------------------------------------------------- | |
| 1280 DMA_WAIT_TAG( (STR_BUF+curr_dst_idx) ); | |
| 1281 | |
| 1282 // Perform three DMA transfers to 3 different locations in the main memory! | |
| 1283 // dst_width: Pixel width of destination image | |
| 1284 // dst_addr: Destination address in main memory | |
| 1285 // dst_vu: Counter which is incremented one by one | |
| 1286 // dst_y: Counter which is twice larger than dst_vu (dst_y = 2*dst_vu) | |
| 1287 | |
| 1288 mfc_put( scaled_y_plane[curr_src_idx], // What from local store (addr) | |
| 1289 (unsigned int) dst_addr_main_memory_y + (dst_vu*dst_dbl_linestride_y), // Destination in main memory (addr) | |
| 1290 dst_dbl_linestride_y, // Two Y lines (depending on the widht of the destination resolution) | |
| 1291 STR_BUF+curr_dst_idx, // Tag | |
| 1292 0, 0 ); | |
| 1293 | |
| 1294 mfc_put( scaled_v_plane[curr_src_idx], // What from local store (addr) | |
| 1295 (unsigned int) dst_addr_main_memory_v + (dst_vu*dst_dbl_linestride_vu), // Destination in main memory (addr) | |
| 1296 dst_dbl_linestride_vu, // Two V lines (depending on the widht of the destination resolution) | |
| 1297 STR_BUF+curr_dst_idx, // Tag | |
| 1298 0, 0 ); | |
| 1299 | |
| 1300 mfc_put( scaled_u_plane[curr_src_idx], // What from local store (addr) | |
| 1301 (unsigned int) dst_addr_main_memory_u + (dst_vu*dst_dbl_linestride_vu), // Destination in main memory (addr) | |
| 1302 dst_dbl_linestride_vu, // Two U lines (depending on the widht of the destination resolution) | |
| 1303 STR_BUF+curr_dst_idx, // Tag | |
| 1304 0, 0 ); | |
| 1305 | |
| 1306 // wait for completion | |
| 1307 DMA_WAIT_TAG( (STR_BUF+curr_dst_idx) ); | |
| 1308 //--------------------------------------------------------------------------------------------- | |
| 1309 } | |
| 1310 | |
| 1311 | |
| 1312 /* | |
| 1313 * bilinear_scale_line_w8() | |
| 1314 * | |
| 1315 * processes a line of yuv-input, width has to be a multiple of 8 | |
| 1316 * scaled yuv-output is written to local store buffer | |
| 1317 * | |
| 1318 * @param src buffer for 2 lines input | |
| 1319 * @param dst_ buffer for 1 line output | |
| 1320 * @param dst_width the width of the destination line | |
| 1321 * @param vf_x_scale a float vector, at each entry is the x_scale-factor | |
| 1322 * @param vf_NSweight a float vector, at each position is the weight NORTH/SOUTH for the current line | |
| 1323 * @param src_linestride the stride of the srcline | |
| 1324 */ | |
| 1325 void bilinear_scale_line_w8( unsigned char* src, unsigned char* dst_, unsigned int dst_width, vector float vf_x_scale, vector float vf_NSweight, unsigned int src_linestride ) { | |
| 1326 | |
| 1327 unsigned char* dst = dst_; | |
| 1328 | |
| 1329 unsigned int dst_x; | |
| 1330 for( dst_x=0; dst_x<dst_width; dst_x+=8) { | |
| 1331 // address calculation for loading the 4 surrounding pixel of each calculated | |
| 1332 // destination pixel | |
| 1333 vector unsigned int vui_dst_x_tmp = spu_splats( dst_x ); | |
| 1334 // lower range->first 4 pixel | |
| 1335 // upper range->next 4 pixel | |
| 1336 vector unsigned int vui_inc_dst_x_lower_range = { 0, 1, 2, 3 }; | |
| 1337 vector unsigned int vui_inc_dst_x_upper_range = { 4, 5, 6, 7 }; | |
| 1338 vector unsigned int vui_dst_x_lower_range = spu_add( vui_dst_x_tmp, vui_inc_dst_x_lower_range ); | |
| 1339 vector unsigned int vui_dst_x_upper_range = spu_add( vui_dst_x_tmp, vui_inc_dst_x_upper_range ); | |
| 1340 | |
| 1341 // calculate weight EAST-WEST | |
| 1342 vector float vf_dst_x_lower_range = spu_convtf( vui_dst_x_lower_range, 0 ); | |
| 1343 vector float vf_dst_x_upper_range = spu_convtf( vui_dst_x_upper_range, 0 ); | |
| 1344 vector float vf_src_x_lower_range = spu_mul( vf_dst_x_lower_range, vf_x_scale ); | |
| 1345 vector float vf_src_x_upper_range = spu_mul( vf_dst_x_upper_range, vf_x_scale ); | |
| 1346 vector unsigned int vui_interpl_x_lower_range = spu_convtu( vf_src_x_lower_range, 0 ); | |
| 1347 vector unsigned int vui_interpl_x_upper_range = spu_convtu( vf_src_x_upper_range, 0 ); | |
| 1348 vector float vf_interpl_x_lower_range = spu_convtf( vui_interpl_x_lower_range, 0 ); | |
| 1349 vector float vf_interpl_x_upper_range = spu_convtf( vui_interpl_x_upper_range, 0 ); | |
| 1350 vector float vf_EWweight_lower_range = spu_sub( vf_src_x_lower_range, vf_interpl_x_lower_range ); | |
| 1351 vector float vf_EWweight_upper_range = spu_sub( vf_src_x_upper_range, vf_interpl_x_upper_range ); | |
| 1352 | |
| 1353 // calculate address offset | |
| 1354 // | |
| 1355 // pixel NORTH WEST | |
| 1356 vector unsigned int vui_off_pixelNW_lower_range = vui_interpl_x_lower_range; | |
| 1357 vector unsigned int vui_off_pixelNW_upper_range = vui_interpl_x_upper_range; | |
| 1358 | |
| 1359 // pixel NORTH EAST-->(offpixelNW+1) | |
| 1360 vector unsigned int vui_add_1 = { 1, 1, 1, 1 }; | |
| 1361 vector unsigned int vui_off_pixelNE_lower_range = spu_add( vui_off_pixelNW_lower_range, vui_add_1 ); | |
| 1362 vector unsigned int vui_off_pixelNE_upper_range = spu_add( vui_off_pixelNW_upper_range, vui_add_1 ); | |
| 1363 | |
| 1364 // SOUTH-WEST-->(offpixelNW+src_linestride) | |
| 1365 vector unsigned int vui_srclinestride = spu_splats( src_linestride ); | |
| 1366 vector unsigned int vui_off_pixelSW_lower_range = spu_add( vui_srclinestride, vui_off_pixelNW_lower_range ); | |
| 1367 vector unsigned int vui_off_pixelSW_upper_range = spu_add( vui_srclinestride, vui_off_pixelNW_upper_range ); | |
| 1368 | |
| 1369 // SOUTH-EAST-->(offpixelNW+src_linestride+1) | |
| 1370 vector unsigned int vui_off_pixelSE_lower_range = spu_add( vui_srclinestride, vui_off_pixelNE_lower_range ); | |
| 1371 vector unsigned int vui_off_pixelSE_upper_range = spu_add( vui_srclinestride, vui_off_pixelNE_upper_range ); | |
| 1372 | |
| 1373 // calculate each address | |
| 1374 vector unsigned int vui_src_ls = spu_splats( (unsigned int) src ); | |
| 1375 vector unsigned int vui_addr_pixelNW_lower_range = spu_add( vui_src_ls, vui_off_pixelNW_lower_range ); | |
| 1376 vector unsigned int vui_addr_pixelNW_upper_range = spu_add( vui_src_ls, vui_off_pixelNW_upper_range ); | |
| 1377 vector unsigned int vui_addr_pixelNE_lower_range = spu_add( vui_src_ls, vui_off_pixelNE_lower_range ); | |
| 1378 vector unsigned int vui_addr_pixelNE_upper_range = spu_add( vui_src_ls, vui_off_pixelNE_upper_range ); | |
| 1379 | |
| 1380 vector unsigned int vui_addr_pixelSW_lower_range = spu_add( vui_src_ls, vui_off_pixelSW_lower_range ); | |
| 1381 vector unsigned int vui_addr_pixelSW_upper_range = spu_add( vui_src_ls, vui_off_pixelSW_upper_range ); | |
| 1382 vector unsigned int vui_addr_pixelSE_lower_range = spu_add( vui_src_ls, vui_off_pixelSE_lower_range ); | |
| 1383 vector unsigned int vui_addr_pixelSE_upper_range = spu_add( vui_src_ls, vui_off_pixelSE_upper_range ); | |
| 1384 | |
| 1385 // get each pixel | |
| 1386 // | |
| 1387 // scalar load, afterwards insertion into the right position | |
| 1388 // NORTH WEST | |
| 1389 vector unsigned char null_vector = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; | |
| 1390 vector unsigned char vuc_pixel_NW_lower_range = spu_insert( | |
| 1391 *((unsigned char*) spu_extract( vui_addr_pixelNW_lower_range, 0 )), null_vector, 3 ); | |
| 1392 vuc_pixel_NW_lower_range = spu_insert( | |
| 1393 *((unsigned char*) spu_extract( vui_addr_pixelNW_lower_range, 1 )), | |
| 1394 vuc_pixel_NW_lower_range, 7 ); | |
| 1395 vuc_pixel_NW_lower_range = spu_insert( | |
| 1396 *((unsigned char*) spu_extract( vui_addr_pixelNW_lower_range, 2 )), | |
| 1397 vuc_pixel_NW_lower_range, 11 ); | |
| 1398 vuc_pixel_NW_lower_range = spu_insert( | |
| 1399 *((unsigned char*) spu_extract( vui_addr_pixelNW_lower_range, 3 )), | |
| 1400 vuc_pixel_NW_lower_range, 15 ); | |
| 1401 | |
| 1402 vector unsigned char vuc_pixel_NW_upper_range = spu_insert( | |
| 1403 *((unsigned char*) spu_extract( vui_addr_pixelNW_upper_range, 0 )), null_vector, 3 ); | |
| 1404 vuc_pixel_NW_upper_range = spu_insert( | |
| 1405 *((unsigned char*) spu_extract( vui_addr_pixelNW_upper_range, 1 )), | |
| 1406 vuc_pixel_NW_upper_range, 7 ); | |
| 1407 vuc_pixel_NW_upper_range = spu_insert( | |
| 1408 *((unsigned char*) spu_extract( vui_addr_pixelNW_upper_range, 2 )), | |
| 1409 vuc_pixel_NW_upper_range, 11 ); | |
| 1410 vuc_pixel_NW_upper_range = spu_insert( | |
| 1411 *((unsigned char*) spu_extract( vui_addr_pixelNW_upper_range, 3 )), | |
| 1412 vuc_pixel_NW_upper_range, 15 ); | |
| 1413 | |
| 1414 // NORTH EAST | |
| 1415 vector unsigned char vuc_pixel_NE_lower_range = spu_insert( | |
| 1416 *((unsigned char*) spu_extract( vui_addr_pixelNE_lower_range, 0 )), null_vector, 3 ); | |
| 1417 vuc_pixel_NE_lower_range = spu_insert( | |
| 1418 *((unsigned char*) spu_extract( vui_addr_pixelNE_lower_range, 1 )), | |
| 1419 vuc_pixel_NE_lower_range, 7 ); | |
| 1420 vuc_pixel_NE_lower_range = spu_insert( | |
| 1421 *((unsigned char*) spu_extract( vui_addr_pixelNE_lower_range, 2 )), | |
| 1422 vuc_pixel_NE_lower_range, 11 ); | |
| 1423 vuc_pixel_NE_lower_range = spu_insert( | |
| 1424 *((unsigned char*) spu_extract( vui_addr_pixelNE_lower_range, 3 )), | |
| 1425 vuc_pixel_NE_lower_range, 15 ); | |
| 1426 | |
| 1427 vector unsigned char vuc_pixel_NE_upper_range = spu_insert( | |
| 1428 *((unsigned char*) spu_extract( vui_addr_pixelNE_upper_range, 0 )), null_vector, 3 ); | |
| 1429 vuc_pixel_NE_upper_range = spu_insert( | |
| 1430 *((unsigned char*) spu_extract( vui_addr_pixelNE_upper_range, 1 )), | |
| 1431 vuc_pixel_NE_upper_range, 7 ); | |
| 1432 vuc_pixel_NE_upper_range = spu_insert( | |
| 1433 *((unsigned char*) spu_extract( vui_addr_pixelNE_upper_range, 2 )), | |
| 1434 vuc_pixel_NE_upper_range, 11 ); | |
| 1435 vuc_pixel_NE_upper_range = spu_insert( | |
| 1436 *((unsigned char*) spu_extract( vui_addr_pixelNE_upper_range, 3 )), | |
| 1437 vuc_pixel_NE_upper_range, 15 ); | |
| 1438 | |
| 1439 | |
| 1440 // SOUTH WEST | |
| 1441 vector unsigned char vuc_pixel_SW_lower_range = spu_insert( | |
| 1442 *((unsigned char*) spu_extract( vui_addr_pixelSW_lower_range, 0 )), null_vector, 3 ); | |
| 1443 vuc_pixel_SW_lower_range = spu_insert( | |
| 1444 *((unsigned char*) spu_extract( vui_addr_pixelSW_lower_range, 1 )), | |
| 1445 vuc_pixel_SW_lower_range, 7 ); | |
| 1446 vuc_pixel_SW_lower_range = spu_insert( | |
| 1447 *((unsigned char*) spu_extract( vui_addr_pixelSW_lower_range, 2 )), | |
| 1448 vuc_pixel_SW_lower_range, 11 ); | |
| 1449 vuc_pixel_SW_lower_range = spu_insert( | |
| 1450 *((unsigned char*) spu_extract( vui_addr_pixelSW_lower_range, 3 )), | |
| 1451 vuc_pixel_SW_lower_range, 15 ); | |
| 1452 | |
| 1453 vector unsigned char vuc_pixel_SW_upper_range = spu_insert( | |
| 1454 *((unsigned char*) spu_extract( vui_addr_pixelSW_upper_range, 0 )), null_vector, 3 ); | |
| 1455 vuc_pixel_SW_upper_range = spu_insert( | |
| 1456 *((unsigned char*) spu_extract( vui_addr_pixelSW_upper_range, 1 )), | |
| 1457 vuc_pixel_SW_upper_range, 7 ); | |
| 1458 vuc_pixel_SW_upper_range = spu_insert( | |
| 1459 *((unsigned char*) spu_extract( vui_addr_pixelSW_upper_range, 2 )), | |
| 1460 vuc_pixel_SW_upper_range, 11 ); | |
| 1461 vuc_pixel_SW_upper_range = spu_insert( | |
| 1462 *((unsigned char*) spu_extract( vui_addr_pixelSW_upper_range, 3 )), | |
| 1463 vuc_pixel_SW_upper_range, 15 ); | |
| 1464 | |
| 1465 // SOUTH EAST | |
| 1466 vector unsigned char vuc_pixel_SE_lower_range = spu_insert( | |
| 1467 *((unsigned char*) spu_extract( vui_addr_pixelSE_lower_range, 0 )), null_vector, 3 ); | |
| 1468 vuc_pixel_SE_lower_range = spu_insert( | |
| 1469 *((unsigned char*) spu_extract( vui_addr_pixelSE_lower_range, 1 )), | |
| 1470 vuc_pixel_SE_lower_range, 7 ); | |
| 1471 vuc_pixel_SE_lower_range = spu_insert( | |
| 1472 *((unsigned char*) spu_extract( vui_addr_pixelSE_lower_range, 2 )), | |
| 1473 vuc_pixel_SE_lower_range, 11 ); | |
| 1474 vuc_pixel_SE_lower_range = spu_insert( | |
| 1475 *((unsigned char*) spu_extract( vui_addr_pixelSE_lower_range, 3 )), | |
| 1476 vuc_pixel_SE_lower_range, 15 ); | |
| 1477 | |
| 1478 vector unsigned char vuc_pixel_SE_upper_range = spu_insert( | |
| 1479 *((unsigned char*) spu_extract( vui_addr_pixelSE_upper_range, 0 )), null_vector, 3 ); | |
| 1480 vuc_pixel_SE_upper_range = spu_insert( | |
| 1481 *((unsigned char*) spu_extract( vui_addr_pixelSE_upper_range, 1 )), | |
| 1482 vuc_pixel_SE_upper_range, 7 ); | |
| 1483 vuc_pixel_SE_upper_range = spu_insert( | |
| 1484 *((unsigned char*) spu_extract( vui_addr_pixelSE_upper_range, 2 )), | |
| 1485 vuc_pixel_SE_upper_range, 11 ); | |
| 1486 vuc_pixel_SE_upper_range = spu_insert( | |
| 1487 *((unsigned char*) spu_extract( vui_addr_pixelSE_upper_range, 3 )), | |
| 1488 vuc_pixel_SE_upper_range, 15 ); | |
| 1489 | |
| 1490 | |
| 1491 // convert to float | |
| 1492 vector float vf_pixel_NW_lower_range = spu_convtf( (vector unsigned int) vuc_pixel_NW_lower_range, 0 ); | |
| 1493 vector float vf_pixel_NW_upper_range = spu_convtf( (vector unsigned int) vuc_pixel_NW_upper_range, 0 ); | |
| 1494 | |
| 1495 vector float vf_pixel_SW_lower_range = spu_convtf( (vector unsigned int) vuc_pixel_SW_lower_range, 0 ); | |
| 1496 vector float vf_pixel_SW_upper_range = spu_convtf( (vector unsigned int) vuc_pixel_SW_upper_range, 0 ); | |
| 1497 | |
| 1498 vector float vf_pixel_NE_lower_range = spu_convtf( (vector unsigned int) vuc_pixel_NE_lower_range, 0 ); | |
| 1499 vector float vf_pixel_NE_upper_range = spu_convtf( (vector unsigned int) vuc_pixel_NE_upper_range, 0 ); | |
| 1500 | |
| 1501 vector float vf_pixel_SE_lower_range = spu_convtf( (vector unsigned int) vuc_pixel_SE_lower_range, 0 ); | |
| 1502 vector float vf_pixel_SE_upper_range = spu_convtf( (vector unsigned int) vuc_pixel_SE_upper_range, 0 ); | |
| 1503 | |
| 1504 | |
| 1505 | |
| 1506 // first linear interpolation: EWtop | |
| 1507 // EWtop = NW + EWweight*(NE-NW) | |
| 1508 // | |
| 1509 // lower range | |
| 1510 vector float vf_EWtop_lower_range_tmp = spu_sub( vf_pixel_NE_lower_range, vf_pixel_NW_lower_range ); | |
| 1511 vector float vf_EWtop_lower_range = spu_madd( vf_EWweight_lower_range, | |
| 1512 vf_EWtop_lower_range_tmp, | |
| 1513 vf_pixel_NW_lower_range ); | |
| 1514 | |
| 1515 // upper range | |
| 1516 vector float vf_EWtop_upper_range_tmp = spu_sub( vf_pixel_NE_upper_range, vf_pixel_NW_upper_range ); | |
| 1517 vector float vf_EWtop_upper_range = spu_madd( vf_EWweight_upper_range, | |
| 1518 vf_EWtop_upper_range_tmp, | |
| 1519 vf_pixel_NW_upper_range ); | |
| 1520 | |
| 1521 | |
| 1522 | |
| 1523 // second linear interpolation: EWbottom | |
| 1524 // EWbottom = SW + EWweight*(SE-SW) | |
| 1525 // | |
| 1526 // lower range | |
| 1527 vector float vf_EWbottom_lower_range_tmp = spu_sub( vf_pixel_SE_lower_range, vf_pixel_SW_lower_range ); | |
| 1528 vector float vf_EWbottom_lower_range = spu_madd( vf_EWweight_lower_range, | |
| 1529 vf_EWbottom_lower_range_tmp, | |
| 1530 vf_pixel_SW_lower_range ); | |
| 1531 | |
| 1532 // upper range | |
| 1533 vector float vf_EWbottom_upper_range_tmp = spu_sub( vf_pixel_SE_upper_range, vf_pixel_SW_upper_range ); | |
| 1534 vector float vf_EWbottom_upper_range = spu_madd( vf_EWweight_upper_range, | |
| 1535 vf_EWbottom_upper_range_tmp, | |
| 1536 vf_pixel_SW_upper_range ); | |
| 1537 | |
| 1538 | |
| 1539 | |
| 1540 // third linear interpolation: the bilinear interpolated value | |
| 1541 // result = EWtop + NSweight*(EWbottom-EWtop); | |
| 1542 // | |
| 1543 // lower range | |
| 1544 vector float vf_result_lower_range_tmp = spu_sub( vf_EWbottom_lower_range, vf_EWtop_lower_range ); | |
| 1545 vector float vf_result_lower_range = spu_madd( vf_NSweight, | |
| 1546 vf_result_lower_range_tmp, | |
| 1547 vf_EWtop_lower_range ); | |
| 1548 | |
| 1549 // upper range | |
| 1550 vector float vf_result_upper_range_tmp = spu_sub( vf_EWbottom_upper_range, vf_EWtop_upper_range ); | |
| 1551 vector float vf_result_upper_range = spu_madd( vf_NSweight, | |
| 1552 vf_result_upper_range_tmp, | |
| 1553 vf_EWtop_upper_range ); | |
| 1554 | |
| 1555 | |
| 1556 // convert back: using saturated arithmetic | |
| 1557 vector unsigned int vui_result_lower_range = vfloat_to_vuint( vf_result_lower_range ); | |
| 1558 vector unsigned int vui_result_upper_range = vfloat_to_vuint( vf_result_upper_range ); | |
| 1559 | |
| 1560 // merge results->lower,upper | |
| 1561 vector unsigned char vuc_mask_merge_result = { 0x03, 0x07, 0x0B, 0x0F, | |
| 1562 0x13, 0x17, 0x1B, 0x1F, | |
| 1563 0x00, 0x00, 0x00, 0x00, | |
| 1564 0x00, 0x00, 0x00, 0x00 }; | |
| 1565 | |
| 1566 vector unsigned char vuc_result = spu_shuffle( (vector unsigned char) vui_result_lower_range, | |
| 1567 (vector unsigned char) vui_result_upper_range, | |
| 1568 vuc_mask_merge_result ); | |
| 1569 | |
| 1570 // partial storing | |
| 1571 vector unsigned char vuc_mask_out = { 0x00, 0x00, 0x00, 0x00, | |
| 1572 0x00, 0x00, 0x00, 0x00, | |
| 1573 0xFF, 0xFF, 0xFF, 0xFF, | |
| 1574 0xFF, 0xFF, 0xFF, 0xFF }; | |
| 1575 | |
| 1576 | |
| 1577 // get currently stored data | |
| 1578 vector unsigned char vuc_orig = *((vector unsigned char*)dst); | |
| 1579 | |
| 1580 // clear currently stored data | |
| 1581 vuc_orig = spu_and( vuc_orig, | |
| 1582 spu_rlqwbyte( vuc_mask_out, ((unsigned int)dst)&0x0F) ); | |
| 1583 | |
| 1584 // rotate result according to storing address | |
| 1585 vuc_result = spu_rlqwbyte( vuc_result, ((unsigned int)dst)&0x0F ); | |
| 1586 | |
| 1587 // store result | |
| 1588 *((vector unsigned char*)dst) = spu_or( vuc_result, | |
| 1589 vuc_orig ); | |
| 1590 dst += 8; | |
| 1591 } | |
| 1592 } | |
| 1593 | |
| 1594 | |
| 1595 /* | |
| 1596 * bilinear_scale_line_w16() | |
| 1597 * | |
| 1598 * processes a line of yuv-input, width has to be a multiple of 16 | |
| 1599 * scaled yuv-output is written to local store buffer | |
| 1600 * | |
| 1601 * @param src buffer for 2 lines input | |
| 1602 * @param dst_ buffer for 1 line output | |
| 1603 * @param dst_width the width of the destination line | |
| 1604 * @param vf_x_scale a float vector, at each entry is the x_scale-factor | |
| 1605 * @param vf_NSweight a float vector, at each position is the weight NORTH/SOUTH for the current line | |
| 1606 * @param src_linestride the stride of the srcline | |
| 1607 */ | |
| 1608 void bilinear_scale_line_w16( unsigned char* src, unsigned char* dst_, unsigned int dst_width, vector float vf_x_scale, vector float vf_NSweight, unsigned int src_linestride ) { | |
| 1609 | |
| 1610 unsigned char* dst = dst_; | |
| 1611 | |
| 1612 unsigned int dst_x; | |
| 1613 for( dst_x=0; dst_x<dst_width; dst_x+=16) { | |
| 1614 // address calculation for loading the 4 surrounding pixel of each calculated | |
| 1615 // destination pixel | |
| 1616 vector unsigned int vui_dst_x_tmp = spu_splats( dst_x ); | |
| 1617 // parallelised processing | |
| 1618 // first range->pixel 1 2 3 4 | |
| 1619 // second range->pixel 5 6 7 8 | |
| 1620 // third range->pixel 9 10 11 12 | |
| 1621 // fourth range->pixel 13 14 15 16 | |
| 1622 vector unsigned int vui_inc_dst_x_first_range = { 0, 1, 2, 3 }; | |
| 1623 vector unsigned int vui_inc_dst_x_second_range = { 4, 5, 6, 7 }; | |
| 1624 vector unsigned int vui_inc_dst_x_third_range = { 8, 9, 10, 11 }; | |
| 1625 vector unsigned int vui_inc_dst_x_fourth_range = { 12, 13, 14, 15 }; | |
| 1626 vector unsigned int vui_dst_x_first_range = spu_add( vui_dst_x_tmp, vui_inc_dst_x_first_range ); | |
| 1627 vector unsigned int vui_dst_x_second_range = spu_add( vui_dst_x_tmp, vui_inc_dst_x_second_range ); | |
| 1628 vector unsigned int vui_dst_x_third_range = spu_add( vui_dst_x_tmp, vui_inc_dst_x_third_range ); | |
| 1629 vector unsigned int vui_dst_x_fourth_range = spu_add( vui_dst_x_tmp, vui_inc_dst_x_fourth_range ); | |
| 1630 | |
| 1631 // calculate weight EAST-WEST | |
| 1632 vector float vf_dst_x_first_range = spu_convtf( vui_dst_x_first_range, 0 ); | |
| 1633 vector float vf_dst_x_second_range = spu_convtf( vui_dst_x_second_range, 0 ); | |
| 1634 vector float vf_dst_x_third_range = spu_convtf( vui_dst_x_third_range, 0 ); | |
| 1635 vector float vf_dst_x_fourth_range = spu_convtf( vui_dst_x_fourth_range, 0 ); | |
| 1636 vector float vf_src_x_first_range = spu_mul( vf_dst_x_first_range, vf_x_scale ); | |
| 1637 vector float vf_src_x_second_range = spu_mul( vf_dst_x_second_range, vf_x_scale ); | |
| 1638 vector float vf_src_x_third_range = spu_mul( vf_dst_x_third_range, vf_x_scale ); | |
| 1639 vector float vf_src_x_fourth_range = spu_mul( vf_dst_x_fourth_range, vf_x_scale ); | |
| 1640 vector unsigned int vui_interpl_x_first_range = spu_convtu( vf_src_x_first_range, 0 ); | |
| 1641 vector unsigned int vui_interpl_x_second_range = spu_convtu( vf_src_x_second_range, 0 ); | |
| 1642 vector unsigned int vui_interpl_x_third_range = spu_convtu( vf_src_x_third_range, 0 ); | |
| 1643 vector unsigned int vui_interpl_x_fourth_range = spu_convtu( vf_src_x_fourth_range, 0 ); | |
| 1644 vector float vf_interpl_x_first_range = spu_convtf( vui_interpl_x_first_range, 0 ); | |
| 1645 vector float vf_interpl_x_second_range = spu_convtf( vui_interpl_x_second_range, 0 ); | |
| 1646 vector float vf_interpl_x_third_range = spu_convtf( vui_interpl_x_third_range, 0 ); | |
| 1647 vector float vf_interpl_x_fourth_range = spu_convtf( vui_interpl_x_fourth_range, 0 ); | |
| 1648 vector float vf_EWweight_first_range = spu_sub( vf_src_x_first_range, vf_interpl_x_first_range ); | |
| 1649 vector float vf_EWweight_second_range = spu_sub( vf_src_x_second_range, vf_interpl_x_second_range ); | |
| 1650 vector float vf_EWweight_third_range = spu_sub( vf_src_x_third_range, vf_interpl_x_third_range ); | |
| 1651 vector float vf_EWweight_fourth_range = spu_sub( vf_src_x_fourth_range, vf_interpl_x_fourth_range ); | |
| 1652 | |
| 1653 // calculate address offset | |
| 1654 // | |
| 1655 // pixel NORTH WEST | |
| 1656 vector unsigned int vui_off_pixelNW_first_range = vui_interpl_x_first_range; | |
| 1657 vector unsigned int vui_off_pixelNW_second_range = vui_interpl_x_second_range; | |
| 1658 vector unsigned int vui_off_pixelNW_third_range = vui_interpl_x_third_range; | |
| 1659 vector unsigned int vui_off_pixelNW_fourth_range = vui_interpl_x_fourth_range; | |
| 1660 | |
| 1661 // pixel NORTH EAST-->(offpixelNW+1) | |
| 1662 vector unsigned int vui_add_1 = { 1, 1, 1, 1 }; | |
| 1663 vector unsigned int vui_off_pixelNE_first_range = spu_add( vui_off_pixelNW_first_range, vui_add_1 ); | |
| 1664 vector unsigned int vui_off_pixelNE_second_range = spu_add( vui_off_pixelNW_second_range, vui_add_1 ); | |
| 1665 vector unsigned int vui_off_pixelNE_third_range = spu_add( vui_off_pixelNW_third_range, vui_add_1 ); | |
| 1666 vector unsigned int vui_off_pixelNE_fourth_range = spu_add( vui_off_pixelNW_fourth_range, vui_add_1 ); | |
| 1667 | |
| 1668 // SOUTH-WEST-->(offpixelNW+src_linestride) | |
| 1669 vector unsigned int vui_srclinestride = spu_splats( src_linestride ); | |
| 1670 vector unsigned int vui_off_pixelSW_first_range = spu_add( vui_srclinestride, vui_off_pixelNW_first_range ); | |
| 1671 vector unsigned int vui_off_pixelSW_second_range = spu_add( vui_srclinestride, vui_off_pixelNW_second_range ); | |
| 1672 vector unsigned int vui_off_pixelSW_third_range = spu_add( vui_srclinestride, vui_off_pixelNW_third_range ); | |
| 1673 vector unsigned int vui_off_pixelSW_fourth_range = spu_add( vui_srclinestride, vui_off_pixelNW_fourth_range ); | |
| 1674 | |
| 1675 // SOUTH-EAST-->(offpixelNW+src_linestride+1) | |
| 1676 vector unsigned int vui_off_pixelSE_first_range = spu_add( vui_srclinestride, vui_off_pixelNE_first_range ); | |
| 1677 vector unsigned int vui_off_pixelSE_second_range = spu_add( vui_srclinestride, vui_off_pixelNE_second_range ); | |
| 1678 vector unsigned int vui_off_pixelSE_third_range = spu_add( vui_srclinestride, vui_off_pixelNE_third_range ); | |
| 1679 vector unsigned int vui_off_pixelSE_fourth_range = spu_add( vui_srclinestride, vui_off_pixelNE_fourth_range ); | |
| 1680 | |
| 1681 // calculate each address | |
| 1682 vector unsigned int vui_src_ls = spu_splats( (unsigned int) src ); | |
| 1683 vector unsigned int vui_addr_pixelNW_first_range = spu_add( vui_src_ls, vui_off_pixelNW_first_range ); | |
| 1684 vector unsigned int vui_addr_pixelNW_second_range = spu_add( vui_src_ls, vui_off_pixelNW_second_range ); | |
| 1685 vector unsigned int vui_addr_pixelNW_third_range = spu_add( vui_src_ls, vui_off_pixelNW_third_range ); | |
| 1686 vector unsigned int vui_addr_pixelNW_fourth_range = spu_add( vui_src_ls, vui_off_pixelNW_fourth_range ); | |
| 1687 | |
| 1688 vector unsigned int vui_addr_pixelNE_first_range = spu_add( vui_src_ls, vui_off_pixelNE_first_range ); | |
| 1689 vector unsigned int vui_addr_pixelNE_second_range = spu_add( vui_src_ls, vui_off_pixelNE_second_range ); | |
| 1690 vector unsigned int vui_addr_pixelNE_third_range = spu_add( vui_src_ls, vui_off_pixelNE_third_range ); | |
| 1691 vector unsigned int vui_addr_pixelNE_fourth_range = spu_add( vui_src_ls, vui_off_pixelNE_fourth_range ); | |
| 1692 | |
| 1693 vector unsigned int vui_addr_pixelSW_first_range = spu_add( vui_src_ls, vui_off_pixelSW_first_range ); | |
| 1694 vector unsigned int vui_addr_pixelSW_second_range = spu_add( vui_src_ls, vui_off_pixelSW_second_range ); | |
| 1695 vector unsigned int vui_addr_pixelSW_third_range = spu_add( vui_src_ls, vui_off_pixelSW_third_range ); | |
| 1696 vector unsigned int vui_addr_pixelSW_fourth_range = spu_add( vui_src_ls, vui_off_pixelSW_fourth_range ); | |
| 1697 | |
| 1698 vector unsigned int vui_addr_pixelSE_first_range = spu_add( vui_src_ls, vui_off_pixelSE_first_range ); | |
| 1699 vector unsigned int vui_addr_pixelSE_second_range = spu_add( vui_src_ls, vui_off_pixelSE_second_range ); | |
| 1700 vector unsigned int vui_addr_pixelSE_third_range = spu_add( vui_src_ls, vui_off_pixelSE_third_range ); | |
| 1701 vector unsigned int vui_addr_pixelSE_fourth_range = spu_add( vui_src_ls, vui_off_pixelSE_fourth_range ); | |
| 1702 | |
| 1703 | |
| 1704 // get each pixel | |
| 1705 // | |
| 1706 // scalar load, afterwards insertion into the right position | |
| 1707 // NORTH WEST | |
| 1708 // first range | |
| 1709 vector unsigned char null_vector = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; | |
| 1710 vector unsigned char vuc_pixel_NW_first_range = spu_insert( | |
| 1711 *((unsigned char*) spu_extract( vui_addr_pixelNW_first_range, 0 )), null_vector, 3 ); | |
| 1712 vuc_pixel_NW_first_range = spu_insert( | |
| 1713 *((unsigned char*) spu_extract( vui_addr_pixelNW_first_range, 1 )), | |
| 1714 vuc_pixel_NW_first_range, 7 ); | |
| 1715 vuc_pixel_NW_first_range = spu_insert( | |
| 1716 *((unsigned char*) spu_extract( vui_addr_pixelNW_first_range, 2 )), | |
| 1717 vuc_pixel_NW_first_range, 11 ); | |
| 1718 vuc_pixel_NW_first_range = spu_insert( | |
| 1719 *((unsigned char*) spu_extract( vui_addr_pixelNW_first_range, 3 )), | |
| 1720 vuc_pixel_NW_first_range, 15 ); | |
| 1721 // second range | |
| 1722 vector unsigned char vuc_pixel_NW_second_range = spu_insert( | |
| 1723 *((unsigned char*) spu_extract( vui_addr_pixelNW_second_range, 0 )), null_vector, 3 ); | |
| 1724 vuc_pixel_NW_second_range = spu_insert( | |
| 1725 *((unsigned char*) spu_extract( vui_addr_pixelNW_second_range, 1 )), | |
| 1726 vuc_pixel_NW_second_range, 7 ); | |
| 1727 vuc_pixel_NW_second_range = spu_insert( | |
| 1728 *((unsigned char*) spu_extract( vui_addr_pixelNW_second_range, 2 )), | |
| 1729 vuc_pixel_NW_second_range, 11 ); | |
| 1730 vuc_pixel_NW_second_range = spu_insert( | |
| 1731 *((unsigned char*) spu_extract( vui_addr_pixelNW_second_range, 3 )), | |
| 1732 vuc_pixel_NW_second_range, 15 ); | |
| 1733 // third range | |
| 1734 vector unsigned char vuc_pixel_NW_third_range = spu_insert( | |
| 1735 *((unsigned char*) spu_extract( vui_addr_pixelNW_third_range, 0 )), null_vector, 3 ); | |
| 1736 vuc_pixel_NW_third_range = spu_insert( | |
| 1737 *((unsigned char*) spu_extract( vui_addr_pixelNW_third_range, 1 )), | |
| 1738 vuc_pixel_NW_third_range, 7 ); | |
| 1739 vuc_pixel_NW_third_range = spu_insert( | |
| 1740 *((unsigned char*) spu_extract( vui_addr_pixelNW_third_range, 2 )), | |
| 1741 vuc_pixel_NW_third_range, 11 ); | |
| 1742 vuc_pixel_NW_third_range = spu_insert( | |
| 1743 *((unsigned char*) spu_extract( vui_addr_pixelNW_third_range, 3 )), | |
| 1744 vuc_pixel_NW_third_range, 15 ); | |
| 1745 // fourth range | |
| 1746 vector unsigned char vuc_pixel_NW_fourth_range = spu_insert( | |
| 1747 *((unsigned char*) spu_extract( vui_addr_pixelNW_fourth_range, 0 )), null_vector, 3 ); | |
| 1748 vuc_pixel_NW_fourth_range = spu_insert( | |
| 1749 *((unsigned char*) spu_extract( vui_addr_pixelNW_fourth_range, 1 )), | |
| 1750 vuc_pixel_NW_fourth_range, 7 ); | |
| 1751 vuc_pixel_NW_fourth_range = spu_insert( | |
| 1752 *((unsigned char*) spu_extract( vui_addr_pixelNW_fourth_range, 2 )), | |
| 1753 vuc_pixel_NW_fourth_range, 11 ); | |
| 1754 vuc_pixel_NW_fourth_range = spu_insert( | |
| 1755 *((unsigned char*) spu_extract( vui_addr_pixelNW_fourth_range, 3 )), | |
| 1756 vuc_pixel_NW_fourth_range, 15 ); | |
| 1757 | |
| 1758 // NORTH EAST | |
| 1759 // first range | |
| 1760 vector unsigned char vuc_pixel_NE_first_range = spu_insert( | |
| 1761 *((unsigned char*) spu_extract( vui_addr_pixelNE_first_range, 0 )), null_vector, 3 ); | |
| 1762 vuc_pixel_NE_first_range = spu_insert( | |
| 1763 *((unsigned char*) spu_extract( vui_addr_pixelNE_first_range, 1 )), | |
| 1764 vuc_pixel_NE_first_range, 7 ); | |
| 1765 vuc_pixel_NE_first_range = spu_insert( | |
| 1766 *((unsigned char*) spu_extract( vui_addr_pixelNE_first_range, 2 )), | |
| 1767 vuc_pixel_NE_first_range, 11 ); | |
| 1768 vuc_pixel_NE_first_range = spu_insert( | |
| 1769 *((unsigned char*) spu_extract( vui_addr_pixelNE_first_range, 3 )), | |
| 1770 vuc_pixel_NE_first_range, 15 ); | |
| 1771 // second range | |
| 1772 vector unsigned char vuc_pixel_NE_second_range = spu_insert( | |
| 1773 *((unsigned char*) spu_extract( vui_addr_pixelNE_second_range, 0 )), null_vector, 3 ); | |
| 1774 vuc_pixel_NE_second_range = spu_insert( | |
| 1775 *((unsigned char*) spu_extract( vui_addr_pixelNE_second_range, 1 )), | |
| 1776 vuc_pixel_NE_second_range, 7 ); | |
| 1777 vuc_pixel_NE_second_range = spu_insert( | |
| 1778 *((unsigned char*) spu_extract( vui_addr_pixelNE_second_range, 2 )), | |
| 1779 vuc_pixel_NE_second_range, 11 ); | |
| 1780 vuc_pixel_NE_second_range = spu_insert( | |
| 1781 *((unsigned char*) spu_extract( vui_addr_pixelNE_second_range, 3 )), | |
| 1782 vuc_pixel_NE_second_range, 15 ); | |
| 1783 // third range | |
| 1784 vector unsigned char vuc_pixel_NE_third_range = spu_insert( | |
| 1785 *((unsigned char*) spu_extract( vui_addr_pixelNE_third_range, 0 )), null_vector, 3 ); | |
| 1786 vuc_pixel_NE_third_range = spu_insert( | |
| 1787 *((unsigned char*) spu_extract( vui_addr_pixelNE_third_range, 1 )), | |
| 1788 vuc_pixel_NE_third_range, 7 ); | |
| 1789 vuc_pixel_NE_third_range = spu_insert( | |
| 1790 *((unsigned char*) spu_extract( vui_addr_pixelNE_third_range, 2 )), | |
| 1791 vuc_pixel_NE_third_range, 11 ); | |
| 1792 vuc_pixel_NE_third_range = spu_insert( | |
| 1793 *((unsigned char*) spu_extract( vui_addr_pixelNE_third_range, 3 )), | |
| 1794 vuc_pixel_NE_third_range, 15 ); | |
| 1795 // fourth range | |
| 1796 vector unsigned char vuc_pixel_NE_fourth_range = spu_insert( | |
| 1797 *((unsigned char*) spu_extract( vui_addr_pixelNE_fourth_range, 0 )), null_vector, 3 ); | |
| 1798 vuc_pixel_NE_fourth_range = spu_insert( | |
| 1799 *((unsigned char*) spu_extract( vui_addr_pixelNE_fourth_range, 1 )), | |
| 1800 vuc_pixel_NE_fourth_range, 7 ); | |
| 1801 vuc_pixel_NE_fourth_range = spu_insert( | |
| 1802 *((unsigned char*) spu_extract( vui_addr_pixelNE_fourth_range, 2 )), | |
| 1803 vuc_pixel_NE_fourth_range, 11 ); | |
| 1804 vuc_pixel_NE_fourth_range = spu_insert( | |
| 1805 *((unsigned char*) spu_extract( vui_addr_pixelNE_fourth_range, 3 )), | |
| 1806 vuc_pixel_NE_fourth_range, 15 ); | |
| 1807 | |
| 1808 // SOUTH WEST | |
| 1809 // first range | |
| 1810 vector unsigned char vuc_pixel_SW_first_range = spu_insert( | |
| 1811 *((unsigned char*) spu_extract( vui_addr_pixelSW_first_range, 0 )), null_vector, 3 ); | |
| 1812 vuc_pixel_SW_first_range = spu_insert( | |
| 1813 *((unsigned char*) spu_extract( vui_addr_pixelSW_first_range, 1 )), | |
| 1814 vuc_pixel_SW_first_range, 7 ); | |
| 1815 vuc_pixel_SW_first_range = spu_insert( | |
| 1816 *((unsigned char*) spu_extract( vui_addr_pixelSW_first_range, 2 )), | |
| 1817 vuc_pixel_SW_first_range, 11 ); | |
| 1818 vuc_pixel_SW_first_range = spu_insert( | |
| 1819 *((unsigned char*) spu_extract( vui_addr_pixelSW_first_range, 3 )), | |
| 1820 vuc_pixel_SW_first_range, 15 ); | |
| 1821 // second range | |
| 1822 vector unsigned char vuc_pixel_SW_second_range = spu_insert( | |
| 1823 *((unsigned char*) spu_extract( vui_addr_pixelSW_second_range, 0 )), null_vector, 3 ); | |
| 1824 vuc_pixel_SW_second_range = spu_insert( | |
| 1825 *((unsigned char*) spu_extract( vui_addr_pixelSW_second_range, 1 )), | |
| 1826 vuc_pixel_SW_second_range, 7 ); | |
| 1827 vuc_pixel_SW_second_range = spu_insert( | |
| 1828 *((unsigned char*) spu_extract( vui_addr_pixelSW_second_range, 2 )), | |
| 1829 vuc_pixel_SW_second_range, 11 ); | |
| 1830 vuc_pixel_SW_second_range = spu_insert( | |
| 1831 *((unsigned char*) spu_extract( vui_addr_pixelSW_second_range, 3 )), | |
| 1832 vuc_pixel_SW_second_range, 15 ); | |
| 1833 // third range | |
| 1834 vector unsigned char vuc_pixel_SW_third_range = spu_insert( | |
| 1835 *((unsigned char*) spu_extract( vui_addr_pixelSW_third_range, 0 )), null_vector, 3 ); | |
| 1836 vuc_pixel_SW_third_range = spu_insert( | |
| 1837 *((unsigned char*) spu_extract( vui_addr_pixelSW_third_range, 1 )), | |
| 1838 vuc_pixel_SW_third_range, 7 ); | |
| 1839 vuc_pixel_SW_third_range = spu_insert( | |
| 1840 *((unsigned char*) spu_extract( vui_addr_pixelSW_third_range, 2 )), | |
| 1841 vuc_pixel_SW_third_range, 11 ); | |
| 1842 vuc_pixel_SW_third_range = spu_insert( | |
| 1843 *((unsigned char*) spu_extract( vui_addr_pixelSW_third_range, 3 )), | |
| 1844 vuc_pixel_SW_third_range, 15 ); | |
| 1845 // fourth range | |
| 1846 vector unsigned char vuc_pixel_SW_fourth_range = spu_insert( | |
| 1847 *((unsigned char*) spu_extract( vui_addr_pixelSW_fourth_range, 0 )), null_vector, 3 ); | |
| 1848 vuc_pixel_SW_fourth_range = spu_insert( | |
| 1849 *((unsigned char*) spu_extract( vui_addr_pixelSW_fourth_range, 1 )), | |
| 1850 vuc_pixel_SW_fourth_range, 7 ); | |
| 1851 vuc_pixel_SW_fourth_range = spu_insert( | |
| 1852 *((unsigned char*) spu_extract( vui_addr_pixelSW_fourth_range, 2 )), | |
| 1853 vuc_pixel_SW_fourth_range, 11 ); | |
| 1854 vuc_pixel_SW_fourth_range = spu_insert( | |
| 1855 *((unsigned char*) spu_extract( vui_addr_pixelSW_fourth_range, 3 )), | |
| 1856 vuc_pixel_SW_fourth_range, 15 ); | |
| 1857 | |
| 1858 // NORTH EAST | |
| 1859 // first range | |
| 1860 vector unsigned char vuc_pixel_SE_first_range = spu_insert( | |
| 1861 *((unsigned char*) spu_extract( vui_addr_pixelSE_first_range, 0 )), null_vector, 3 ); | |
| 1862 vuc_pixel_SE_first_range = spu_insert( | |
| 1863 *((unsigned char*) spu_extract( vui_addr_pixelSE_first_range, 1 )), | |
| 1864 vuc_pixel_SE_first_range, 7 ); | |
| 1865 vuc_pixel_SE_first_range = spu_insert( | |
| 1866 *((unsigned char*) spu_extract( vui_addr_pixelSE_first_range, 2 )), | |
| 1867 vuc_pixel_SE_first_range, 11 ); | |
| 1868 vuc_pixel_SE_first_range = spu_insert( | |
| 1869 *((unsigned char*) spu_extract( vui_addr_pixelSE_first_range, 3 )), | |
| 1870 vuc_pixel_SE_first_range, 15 ); | |
| 1871 // second range | |
| 1872 vector unsigned char vuc_pixel_SE_second_range = spu_insert( | |
| 1873 *((unsigned char*) spu_extract( vui_addr_pixelSE_second_range, 0 )), null_vector, 3 ); | |
| 1874 vuc_pixel_SE_second_range = spu_insert( | |
| 1875 *((unsigned char*) spu_extract( vui_addr_pixelSE_second_range, 1 )), | |
| 1876 vuc_pixel_SE_second_range, 7 ); | |
| 1877 vuc_pixel_SE_second_range = spu_insert( | |
| 1878 *((unsigned char*) spu_extract( vui_addr_pixelSE_second_range, 2 )), | |
| 1879 vuc_pixel_SE_second_range, 11 ); | |
| 1880 vuc_pixel_SE_second_range = spu_insert( | |
| 1881 *((unsigned char*) spu_extract( vui_addr_pixelSE_second_range, 3 )), | |
| 1882 vuc_pixel_SE_second_range, 15 ); | |
| 1883 // third range | |
| 1884 vector unsigned char vuc_pixel_SE_third_range = spu_insert( | |
| 1885 *((unsigned char*) spu_extract( vui_addr_pixelSE_third_range, 0 )), null_vector, 3 ); | |
| 1886 vuc_pixel_SE_third_range = spu_insert( | |
| 1887 *((unsigned char*) spu_extract( vui_addr_pixelSE_third_range, 1 )), | |
| 1888 vuc_pixel_SE_third_range, 7 ); | |
| 1889 vuc_pixel_SE_third_range = spu_insert( | |
| 1890 *((unsigned char*) spu_extract( vui_addr_pixelSE_third_range, 2 )), | |
| 1891 vuc_pixel_SE_third_range, 11 ); | |
| 1892 vuc_pixel_SE_third_range = spu_insert( | |
| 1893 *((unsigned char*) spu_extract( vui_addr_pixelSE_third_range, 3 )), | |
| 1894 vuc_pixel_SE_third_range, 15 ); | |
| 1895 // fourth range | |
| 1896 vector unsigned char vuc_pixel_SE_fourth_range = spu_insert( | |
| 1897 *((unsigned char*) spu_extract( vui_addr_pixelSE_fourth_range, 0 )), null_vector, 3 ); | |
| 1898 vuc_pixel_SE_fourth_range = spu_insert( | |
| 1899 *((unsigned char*) spu_extract( vui_addr_pixelSE_fourth_range, 1 )), | |
| 1900 vuc_pixel_SE_fourth_range, 7 ); | |
| 1901 vuc_pixel_SE_fourth_range = spu_insert( | |
| 1902 *((unsigned char*) spu_extract( vui_addr_pixelSE_fourth_range, 2 )), | |
| 1903 vuc_pixel_SE_fourth_range, 11 ); | |
| 1904 vuc_pixel_SE_fourth_range = spu_insert( | |
| 1905 *((unsigned char*) spu_extract( vui_addr_pixelSE_fourth_range, 3 )), | |
| 1906 vuc_pixel_SE_fourth_range, 15 ); | |
| 1907 | |
| 1908 | |
| 1909 | |
| 1910 // convert to float | |
| 1911 vector float vf_pixel_NW_first_range = spu_convtf( (vector unsigned int) vuc_pixel_NW_first_range, 0 ); | |
| 1912 vector float vf_pixel_NW_second_range = spu_convtf( (vector unsigned int) vuc_pixel_NW_second_range, 0 ); | |
| 1913 vector float vf_pixel_NW_third_range = spu_convtf( (vector unsigned int) vuc_pixel_NW_third_range, 0 ); | |
| 1914 vector float vf_pixel_NW_fourth_range = spu_convtf( (vector unsigned int) vuc_pixel_NW_fourth_range, 0 ); | |
| 1915 | |
| 1916 vector float vf_pixel_NE_first_range = spu_convtf( (vector unsigned int) vuc_pixel_NE_first_range, 0 ); | |
| 1917 vector float vf_pixel_NE_second_range = spu_convtf( (vector unsigned int) vuc_pixel_NE_second_range, 0 ); | |
| 1918 vector float vf_pixel_NE_third_range = spu_convtf( (vector unsigned int) vuc_pixel_NE_third_range, 0 ); | |
| 1919 vector float vf_pixel_NE_fourth_range = spu_convtf( (vector unsigned int) vuc_pixel_NE_fourth_range, 0 ); | |
| 1920 | |
| 1921 vector float vf_pixel_SW_first_range = spu_convtf( (vector unsigned int) vuc_pixel_SW_first_range, 0 ); | |
| 1922 vector float vf_pixel_SW_second_range = spu_convtf( (vector unsigned int) vuc_pixel_SW_second_range, 0 ); | |
| 1923 vector float vf_pixel_SW_third_range = spu_convtf( (vector unsigned int) vuc_pixel_SW_third_range, 0 ); | |
| 1924 vector float vf_pixel_SW_fourth_range = spu_convtf( (vector unsigned int) vuc_pixel_SW_fourth_range, 0 ); | |
| 1925 | |
| 1926 vector float vf_pixel_SE_first_range = spu_convtf( (vector unsigned int) vuc_pixel_SE_first_range, 0 ); | |
| 1927 vector float vf_pixel_SE_second_range = spu_convtf( (vector unsigned int) vuc_pixel_SE_second_range, 0 ); | |
| 1928 vector float vf_pixel_SE_third_range = spu_convtf( (vector unsigned int) vuc_pixel_SE_third_range, 0 ); | |
| 1929 vector float vf_pixel_SE_fourth_range = spu_convtf( (vector unsigned int) vuc_pixel_SE_fourth_range, 0 ); | |
| 1930 | |
| 1931 // first linear interpolation: EWtop | |
| 1932 // EWtop = NW + EWweight*(NE-NW) | |
| 1933 // | |
| 1934 // first range | |
| 1935 vector float vf_EWtop_first_range_tmp = spu_sub( vf_pixel_NE_first_range, vf_pixel_NW_first_range ); | |
| 1936 vector float vf_EWtop_first_range = spu_madd( vf_EWweight_first_range, | |
| 1937 vf_EWtop_first_range_tmp, | |
| 1938 vf_pixel_NW_first_range ); | |
| 1939 | |
| 1940 // second range | |
| 1941 vector float vf_EWtop_second_range_tmp = spu_sub( vf_pixel_NE_second_range, vf_pixel_NW_second_range ); | |
| 1942 vector float vf_EWtop_second_range = spu_madd( vf_EWweight_second_range, | |
| 1943 vf_EWtop_second_range_tmp, | |
| 1944 vf_pixel_NW_second_range ); | |
| 1945 | |
| 1946 // third range | |
| 1947 vector float vf_EWtop_third_range_tmp = spu_sub( vf_pixel_NE_third_range, vf_pixel_NW_third_range ); | |
| 1948 vector float vf_EWtop_third_range = spu_madd( vf_EWweight_third_range, | |
| 1949 vf_EWtop_third_range_tmp, | |
| 1950 vf_pixel_NW_third_range ); | |
| 1951 | |
| 1952 // fourth range | |
| 1953 vector float vf_EWtop_fourth_range_tmp = spu_sub( vf_pixel_NE_fourth_range, vf_pixel_NW_fourth_range ); | |
| 1954 vector float vf_EWtop_fourth_range = spu_madd( vf_EWweight_fourth_range, | |
| 1955 vf_EWtop_fourth_range_tmp, | |
| 1956 vf_pixel_NW_fourth_range ); | |
| 1957 | |
| 1958 | |
| 1959 | |
| 1960 // second linear interpolation: EWbottom | |
| 1961 // EWbottom = SW + EWweight*(SE-SW) | |
| 1962 // | |
| 1963 // first range | |
| 1964 vector float vf_EWbottom_first_range_tmp = spu_sub( vf_pixel_SE_first_range, vf_pixel_SW_first_range ); | |
| 1965 vector float vf_EWbottom_first_range = spu_madd( vf_EWweight_first_range, | |
| 1966 vf_EWbottom_first_range_tmp, | |
| 1967 vf_pixel_SW_first_range ); | |
| 1968 | |
| 1969 // second range | |
| 1970 vector float vf_EWbottom_second_range_tmp = spu_sub( vf_pixel_SE_second_range, vf_pixel_SW_second_range ); | |
| 1971 vector float vf_EWbottom_second_range = spu_madd( vf_EWweight_second_range, | |
| 1972 vf_EWbottom_second_range_tmp, | |
| 1973 vf_pixel_SW_second_range ); | |
| 1974 // first range | |
| 1975 vector float vf_EWbottom_third_range_tmp = spu_sub( vf_pixel_SE_third_range, vf_pixel_SW_third_range ); | |
| 1976 vector float vf_EWbottom_third_range = spu_madd( vf_EWweight_third_range, | |
| 1977 vf_EWbottom_third_range_tmp, | |
| 1978 vf_pixel_SW_third_range ); | |
| 1979 | |
| 1980 // first range | |
| 1981 vector float vf_EWbottom_fourth_range_tmp = spu_sub( vf_pixel_SE_fourth_range, vf_pixel_SW_fourth_range ); | |
| 1982 vector float vf_EWbottom_fourth_range = spu_madd( vf_EWweight_fourth_range, | |
| 1983 vf_EWbottom_fourth_range_tmp, | |
| 1984 vf_pixel_SW_fourth_range ); | |
| 1985 | |
| 1986 | |
| 1987 | |
| 1988 // third linear interpolation: the bilinear interpolated value | |
| 1989 // result = EWtop + NSweight*(EWbottom-EWtop); | |
| 1990 // | |
| 1991 // first range | |
| 1992 vector float vf_result_first_range_tmp = spu_sub( vf_EWbottom_first_range, vf_EWtop_first_range ); | |
| 1993 vector float vf_result_first_range = spu_madd( vf_NSweight, | |
| 1994 vf_result_first_range_tmp, | |
| 1995 vf_EWtop_first_range ); | |
| 1996 | |
| 1997 // second range | |
| 1998 vector float vf_result_second_range_tmp = spu_sub( vf_EWbottom_second_range, vf_EWtop_second_range ); | |
| 1999 vector float vf_result_second_range = spu_madd( vf_NSweight, | |
| 2000 vf_result_second_range_tmp, | |
| 2001 vf_EWtop_second_range ); | |
| 2002 | |
| 2003 // third range | |
| 2004 vector float vf_result_third_range_tmp = spu_sub( vf_EWbottom_third_range, vf_EWtop_third_range ); | |
| 2005 vector float vf_result_third_range = spu_madd( vf_NSweight, | |
| 2006 vf_result_third_range_tmp, | |
| 2007 vf_EWtop_third_range ); | |
| 2008 | |
| 2009 // fourth range | |
| 2010 vector float vf_result_fourth_range_tmp = spu_sub( vf_EWbottom_fourth_range, vf_EWtop_fourth_range ); | |
| 2011 vector float vf_result_fourth_range = spu_madd( vf_NSweight, | |
| 2012 vf_result_fourth_range_tmp, | |
| 2013 vf_EWtop_fourth_range ); | |
| 2014 | |
| 2015 | |
| 2016 | |
| 2017 // convert back: using saturated arithmetic | |
| 2018 vector unsigned int vui_result_first_range = vfloat_to_vuint( vf_result_first_range ); | |
| 2019 vector unsigned int vui_result_second_range = vfloat_to_vuint( vf_result_second_range ); | |
| 2020 vector unsigned int vui_result_third_range = vfloat_to_vuint( vf_result_third_range ); | |
| 2021 vector unsigned int vui_result_fourth_range = vfloat_to_vuint( vf_result_fourth_range ); | |
| 2022 | |
| 2023 // merge results->lower,upper | |
| 2024 vector unsigned char vuc_mask_merge_result_first_second = { 0x03, 0x07, 0x0B, 0x0F, | |
| 2025 0x13, 0x17, 0x1B, 0x1F, | |
| 2026 0x00, 0x00, 0x00, 0x00, | |
| 2027 0x00, 0x00, 0x00, 0x00 }; | |
| 2028 | |
| 2029 vector unsigned char vuc_mask_merge_result_third_fourth = { 0x00, 0x00, 0x00, 0x00, | |
| 2030 0x00, 0x00, 0x00, 0x00, | |
| 2031 0x03, 0x07, 0x0B, 0x0F, | |
| 2032 0x13, 0x17, 0x1B, 0x1F }; | |
| 2033 | |
| 2034 vector unsigned char vuc_result_first_second = | |
| 2035 spu_shuffle( (vector unsigned char) vui_result_first_range, | |
| 2036 (vector unsigned char) vui_result_second_range, | |
| 2037 vuc_mask_merge_result_first_second ); | |
| 2038 | |
| 2039 vector unsigned char vuc_result_third_fourth = | |
| 2040 spu_shuffle( (vector unsigned char) vui_result_third_range, | |
| 2041 (vector unsigned char) vui_result_fourth_range, | |
| 2042 vuc_mask_merge_result_third_fourth ); | |
| 2043 | |
| 2044 // store result | |
| 2045 *((vector unsigned char*)dst) = spu_or( vuc_result_first_second, | |
| 2046 vuc_result_third_fourth ); | |
| 2047 dst += 16; | |
| 2048 } | |
| 2049 } | |
| 2050 |