e14743d1 |
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 | |