| 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 | |