e14743d1 |
1 | /* |
2 | SDL - Simple DirectMedia Layer |
3 | Copyright (C) 1997-2009 Sam Lantinga |
4 | |
5 | This library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | This library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with this library; if not, write to the Free Software |
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
18 | |
19 | Sam Lantinga |
20 | slouken@libsdl.org |
21 | */ |
22 | #include "SDL_config.h" |
23 | |
24 | #include "SDL_video.h" |
25 | #include "SDL_blit.h" |
26 | |
27 | /* |
28 | In Visual C, VC6 has mmintrin.h in the "Processor Pack" add-on. |
29 | Checking if _mm_free is #defined in malloc.h is is the only way to |
30 | determine if the Processor Pack is installed, as far as I can tell. |
31 | */ |
32 | |
33 | #if SDL_ASSEMBLY_ROUTINES |
34 | # if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)) |
35 | # define MMX_ASMBLIT 1 |
36 | # define GCC_ASMBLIT 1 |
37 | # elif defined(_MSC_VER) && defined(_M_IX86) |
38 | # if (_MSC_VER <= 1200) |
39 | # include <malloc.h> |
40 | # if defined(_mm_free) |
41 | # define HAVE_MMINTRIN_H 1 |
42 | # endif |
43 | # else /* Visual Studio > VC6 always has mmintrin.h */ |
44 | # define HAVE_MMINTRIN_H 1 |
45 | # endif |
46 | # if HAVE_MMINTRIN_H |
47 | # define MMX_ASMBLIT 1 |
48 | # define MSVC_ASMBLIT 1 |
49 | # endif |
50 | # endif |
51 | #endif /* SDL_ASSEMBLY_ROUTINES */ |
52 | |
53 | /* Function to check the CPU flags */ |
54 | #include "SDL_cpuinfo.h" |
55 | #if GCC_ASMBLIT |
56 | #include "mmx.h" |
57 | #elif MSVC_ASMBLIT |
58 | #include <mmintrin.h> |
59 | #include <mm3dnow.h> |
60 | #endif |
61 | |
62 | /* Functions to perform alpha blended blitting */ |
63 | |
a1f34081 |
64 | #ifdef __ARM_NEON__ |
65 | |
66 | /* NEON optimized blitter callers */ |
67 | #define make_neon_caller(name, neon_name) \ |
68 | extern void neon_name(void *dst, const void *src, int count); \ |
69 | static void name(SDL_BlitInfo *info) \ |
70 | { \ |
71 | int width = info->d_width; \ |
72 | int height = info->d_height; \ |
73 | Uint8 *src = info->s_pixels; \ |
74 | Uint8 *dst = info->d_pixels; \ |
75 | int srcskip = info->s_skip; \ |
76 | int dstskip = info->d_skip; \ |
77 | \ |
78 | while ( height-- ) { \ |
79 | neon_name(dst, src, width); \ |
80 | src += width * 4 + srcskip; \ |
81 | dst += width * 4 + dstskip; \ |
82 | } \ |
83 | } |
84 | |
85 | make_neon_caller(BlitABGRtoXRGBalpha_neon, neon_ABGRtoXRGBalpha) |
86 | make_neon_caller(BlitARGBtoXRGBalpha_neon, neon_ARGBtoXRGBalpha) |
87 | |
88 | #endif /* __ARM_NEON__ */ |
89 | |
e14743d1 |
90 | /* N->1 blending with per-surface alpha */ |
91 | static void BlitNto1SurfaceAlpha(SDL_BlitInfo *info) |
92 | { |
93 | int width = info->d_width; |
94 | int height = info->d_height; |
95 | Uint8 *src = info->s_pixels; |
96 | int srcskip = info->s_skip; |
97 | Uint8 *dst = info->d_pixels; |
98 | int dstskip = info->d_skip; |
99 | Uint8 *palmap = info->table; |
100 | SDL_PixelFormat *srcfmt = info->src; |
101 | SDL_PixelFormat *dstfmt = info->dst; |
102 | int srcbpp = srcfmt->BytesPerPixel; |
103 | |
104 | const unsigned A = srcfmt->alpha; |
105 | |
106 | while ( height-- ) { |
107 | DUFFS_LOOP4( |
108 | { |
109 | Uint32 Pixel; |
110 | unsigned sR; |
111 | unsigned sG; |
112 | unsigned sB; |
113 | unsigned dR; |
114 | unsigned dG; |
115 | unsigned dB; |
116 | DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB); |
117 | dR = dstfmt->palette->colors[*dst].r; |
118 | dG = dstfmt->palette->colors[*dst].g; |
119 | dB = dstfmt->palette->colors[*dst].b; |
120 | ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB); |
121 | dR &= 0xff; |
122 | dG &= 0xff; |
123 | dB &= 0xff; |
124 | /* Pack RGB into 8bit pixel */ |
125 | if ( palmap == NULL ) { |
126 | *dst =((dR>>5)<<(3+2))| |
127 | ((dG>>5)<<(2))| |
128 | ((dB>>6)<<(0)); |
129 | } else { |
130 | *dst = palmap[((dR>>5)<<(3+2))| |
131 | ((dG>>5)<<(2)) | |
132 | ((dB>>6)<<(0))]; |
133 | } |
134 | dst++; |
135 | src += srcbpp; |
136 | }, |
137 | width); |
138 | src += srcskip; |
139 | dst += dstskip; |
140 | } |
141 | } |
142 | |
143 | /* N->1 blending with pixel alpha */ |
144 | static void BlitNto1PixelAlpha(SDL_BlitInfo *info) |
145 | { |
146 | int width = info->d_width; |
147 | int height = info->d_height; |
148 | Uint8 *src = info->s_pixels; |
149 | int srcskip = info->s_skip; |
150 | Uint8 *dst = info->d_pixels; |
151 | int dstskip = info->d_skip; |
152 | Uint8 *palmap = info->table; |
153 | SDL_PixelFormat *srcfmt = info->src; |
154 | SDL_PixelFormat *dstfmt = info->dst; |
155 | int srcbpp = srcfmt->BytesPerPixel; |
156 | |
157 | /* FIXME: fix alpha bit field expansion here too? */ |
158 | while ( height-- ) { |
159 | DUFFS_LOOP4( |
160 | { |
161 | Uint32 Pixel; |
162 | unsigned sR; |
163 | unsigned sG; |
164 | unsigned sB; |
165 | unsigned sA; |
166 | unsigned dR; |
167 | unsigned dG; |
168 | unsigned dB; |
169 | DISEMBLE_RGBA(src,srcbpp,srcfmt,Pixel,sR,sG,sB,sA); |
170 | dR = dstfmt->palette->colors[*dst].r; |
171 | dG = dstfmt->palette->colors[*dst].g; |
172 | dB = dstfmt->palette->colors[*dst].b; |
173 | ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); |
174 | dR &= 0xff; |
175 | dG &= 0xff; |
176 | dB &= 0xff; |
177 | /* Pack RGB into 8bit pixel */ |
178 | if ( palmap == NULL ) { |
179 | *dst =((dR>>5)<<(3+2))| |
180 | ((dG>>5)<<(2))| |
181 | ((dB>>6)<<(0)); |
182 | } else { |
183 | *dst = palmap[((dR>>5)<<(3+2))| |
184 | ((dG>>5)<<(2)) | |
185 | ((dB>>6)<<(0)) ]; |
186 | } |
187 | dst++; |
188 | src += srcbpp; |
189 | }, |
190 | width); |
191 | src += srcskip; |
192 | dst += dstskip; |
193 | } |
194 | } |
195 | |
196 | /* colorkeyed N->1 blending with per-surface alpha */ |
197 | static void BlitNto1SurfaceAlphaKey(SDL_BlitInfo *info) |
198 | { |
199 | int width = info->d_width; |
200 | int height = info->d_height; |
201 | Uint8 *src = info->s_pixels; |
202 | int srcskip = info->s_skip; |
203 | Uint8 *dst = info->d_pixels; |
204 | int dstskip = info->d_skip; |
205 | Uint8 *palmap = info->table; |
206 | SDL_PixelFormat *srcfmt = info->src; |
207 | SDL_PixelFormat *dstfmt = info->dst; |
208 | int srcbpp = srcfmt->BytesPerPixel; |
209 | Uint32 ckey = srcfmt->colorkey; |
210 | |
211 | const int A = srcfmt->alpha; |
212 | |
213 | while ( height-- ) { |
214 | DUFFS_LOOP( |
215 | { |
216 | Uint32 Pixel; |
217 | unsigned sR; |
218 | unsigned sG; |
219 | unsigned sB; |
220 | unsigned dR; |
221 | unsigned dG; |
222 | unsigned dB; |
223 | DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB); |
224 | if ( Pixel != ckey ) { |
225 | dR = dstfmt->palette->colors[*dst].r; |
226 | dG = dstfmt->palette->colors[*dst].g; |
227 | dB = dstfmt->palette->colors[*dst].b; |
228 | ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB); |
229 | dR &= 0xff; |
230 | dG &= 0xff; |
231 | dB &= 0xff; |
232 | /* Pack RGB into 8bit pixel */ |
233 | if ( palmap == NULL ) { |
234 | *dst =((dR>>5)<<(3+2))| |
235 | ((dG>>5)<<(2)) | |
236 | ((dB>>6)<<(0)); |
237 | } else { |
238 | *dst = palmap[((dR>>5)<<(3+2))| |
239 | ((dG>>5)<<(2)) | |
240 | ((dB>>6)<<(0)) ]; |
241 | } |
242 | } |
243 | dst++; |
244 | src += srcbpp; |
245 | }, |
246 | width); |
247 | src += srcskip; |
248 | dst += dstskip; |
249 | } |
250 | } |
251 | |
252 | #if GCC_ASMBLIT |
253 | /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */ |
254 | static void BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo *info) |
255 | { |
256 | int width = info->d_width; |
257 | int height = info->d_height; |
258 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
259 | int srcskip = info->s_skip >> 2; |
260 | Uint32 *dstp = (Uint32 *)info->d_pixels; |
261 | int dstskip = info->d_skip >> 2; |
262 | Uint32 dalpha = info->dst->Amask; |
263 | Uint64 load; |
264 | |
265 | load = 0x00fefefe00fefefeULL;/* alpha128 mask */ |
266 | movq_m2r(load, mm4); /* alpha128 mask -> mm4 */ |
267 | load = 0x0001010100010101ULL;/* !alpha128 mask */ |
268 | movq_m2r(load, mm3); /* !alpha128 mask -> mm3 */ |
269 | movd_m2r(dalpha, mm7); /* dst alpha mask */ |
270 | punpckldq_r2r(mm7, mm7); /* dst alpha mask | dst alpha mask -> mm7 */ |
271 | while(height--) { |
272 | DUFFS_LOOP_DOUBLE2( |
273 | { |
274 | Uint32 s = *srcp++; |
275 | Uint32 d = *dstp; |
276 | *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1) |
277 | + (s & d & 0x00010101)) | dalpha; |
278 | },{ |
279 | movq_m2r((*dstp), mm2);/* 2 x dst -> mm2(ARGBARGB) */ |
280 | movq_r2r(mm2, mm6); /* 2 x dst -> mm6(ARGBARGB) */ |
281 | |
282 | movq_m2r((*srcp), mm1);/* 2 x src -> mm1(ARGBARGB) */ |
283 | movq_r2r(mm1, mm5); /* 2 x src -> mm5(ARGBARGB) */ |
284 | |
285 | pand_r2r(mm4, mm6); /* dst & mask -> mm6 */ |
286 | pand_r2r(mm4, mm5); /* src & mask -> mm5 */ |
287 | paddd_r2r(mm6, mm5); /* mm6 + mm5 -> mm5 */ |
288 | pand_r2r(mm1, mm2); /* src & dst -> mm2 */ |
289 | psrld_i2r(1, mm5); /* mm5 >> 1 -> mm5 */ |
290 | pand_r2r(mm3, mm2); /* mm2 & !mask -> mm2 */ |
291 | paddd_r2r(mm5, mm2); /* mm5 + mm2 -> mm2 */ |
292 | |
293 | por_r2r(mm7, mm2); /* mm7(full alpha) | mm2 -> mm2 */ |
294 | movq_r2m(mm2, (*dstp));/* mm2 -> 2 x dst pixels */ |
295 | dstp += 2; |
296 | srcp += 2; |
297 | }, width); |
298 | srcp += srcskip; |
299 | dstp += dstskip; |
300 | } |
301 | emms(); |
302 | } |
303 | |
304 | /* fast RGB888->(A)RGB888 blending with surface alpha */ |
305 | static void BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo *info) |
306 | { |
307 | SDL_PixelFormat* df = info->dst; |
308 | unsigned alpha = info->src->alpha; |
309 | |
310 | if (alpha == 128 && (df->Rmask | df->Gmask | df->Bmask) == 0x00FFFFFF) { |
311 | /* only call a128 version when R,G,B occupy lower bits */ |
312 | BlitRGBtoRGBSurfaceAlpha128MMX(info); |
313 | } else { |
314 | int width = info->d_width; |
315 | int height = info->d_height; |
316 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
317 | int srcskip = info->s_skip >> 2; |
318 | Uint32 *dstp = (Uint32 *)info->d_pixels; |
319 | int dstskip = info->d_skip >> 2; |
320 | |
321 | pxor_r2r(mm5, mm5); /* 0 -> mm5 */ |
322 | /* form the alpha mult */ |
323 | movd_m2r(alpha, mm4); /* 0000000A -> mm4 */ |
324 | punpcklwd_r2r(mm4, mm4); /* 00000A0A -> mm4 */ |
325 | punpckldq_r2r(mm4, mm4); /* 0A0A0A0A -> mm4 */ |
326 | alpha = (0xff << df->Rshift) | (0xff << df->Gshift) | (0xff << df->Bshift); |
327 | movd_m2r(alpha, mm0); /* 00000FFF -> mm0 */ |
328 | punpcklbw_r2r(mm0, mm0); /* 00FFFFFF -> mm0 */ |
329 | pand_r2r(mm0, mm4); /* 0A0A0A0A -> mm4, minus 1 chan */ |
330 | /* at this point mm4 can be 000A0A0A or 0A0A0A00 or another combo */ |
331 | movd_m2r(df->Amask, mm7); /* dst alpha mask */ |
332 | punpckldq_r2r(mm7, mm7); /* dst alpha mask | dst alpha mask -> mm7 */ |
333 | |
334 | while(height--) { |
335 | DUFFS_LOOP_DOUBLE2({ |
336 | /* One Pixel Blend */ |
337 | movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/ |
338 | movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/ |
339 | punpcklbw_r2r(mm5, mm1); /* 0A0R0G0B -> mm1(src) */ |
340 | punpcklbw_r2r(mm5, mm2); /* 0A0R0G0B -> mm2(dst) */ |
341 | |
342 | psubw_r2r(mm2, mm1);/* src - dst -> mm1 */ |
343 | pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */ |
344 | psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1 */ |
345 | paddb_r2r(mm1, mm2); /* mm1 + mm2(dst) -> mm2 */ |
346 | |
347 | packuswb_r2r(mm5, mm2); /* ARGBARGB -> mm2 */ |
348 | por_r2r(mm7, mm2); /* mm7(full alpha) | mm2 -> mm2 */ |
349 | movd_r2m(mm2, *dstp);/* mm2 -> pixel */ |
350 | ++srcp; |
351 | ++dstp; |
352 | },{ |
353 | /* Two Pixels Blend */ |
354 | movq_m2r((*srcp), mm0);/* 2 x src -> mm0(ARGBARGB)*/ |
355 | movq_m2r((*dstp), mm2);/* 2 x dst -> mm2(ARGBARGB) */ |
356 | movq_r2r(mm0, mm1); /* 2 x src -> mm1(ARGBARGB) */ |
357 | movq_r2r(mm2, mm6); /* 2 x dst -> mm6(ARGBARGB) */ |
358 | |
359 | punpcklbw_r2r(mm5, mm0); /* low - 0A0R0G0B -> mm0(src1) */ |
360 | punpckhbw_r2r(mm5, mm1); /* high - 0A0R0G0B -> mm1(src2) */ |
361 | punpcklbw_r2r(mm5, mm2); /* low - 0A0R0G0B -> mm2(dst1) */ |
362 | punpckhbw_r2r(mm5, mm6); /* high - 0A0R0G0B -> mm6(dst2) */ |
363 | |
364 | psubw_r2r(mm2, mm0);/* src1 - dst1 -> mm0 */ |
365 | pmullw_r2r(mm4, mm0); /* mm0 * alpha -> mm0 */ |
366 | psrlw_i2r(8, mm0); /* mm0 >> 8 -> mm1 */ |
367 | paddb_r2r(mm0, mm2); /* mm0 + mm2(dst1) -> mm2 */ |
368 | |
369 | psubw_r2r(mm6, mm1);/* src2 - dst2 -> mm1 */ |
370 | pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */ |
371 | psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1 */ |
372 | paddb_r2r(mm1, mm6); /* mm1 + mm6(dst2) -> mm6 */ |
373 | |
374 | packuswb_r2r(mm6, mm2); /* ARGBARGB -> mm2 */ |
375 | por_r2r(mm7, mm2); /* mm7(dst alpha) | mm2 -> mm2 */ |
376 | |
377 | movq_r2m(mm2, *dstp);/* mm2 -> 2 x pixel */ |
378 | |
379 | srcp += 2; |
380 | dstp += 2; |
381 | }, width); |
382 | srcp += srcskip; |
383 | dstp += dstskip; |
384 | } |
385 | emms(); |
386 | } |
387 | } |
388 | |
389 | /* fast ARGB888->(A)RGB888 blending with pixel alpha */ |
390 | static void BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo *info) |
391 | { |
392 | int width = info->d_width; |
393 | int height = info->d_height; |
394 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
395 | int srcskip = info->s_skip >> 2; |
396 | Uint32 *dstp = (Uint32 *)info->d_pixels; |
397 | int dstskip = info->d_skip >> 2; |
398 | SDL_PixelFormat* sf = info->src; |
399 | Uint32 amask = sf->Amask; |
400 | |
401 | pxor_r2r(mm6, mm6); /* 0 -> mm6 */ |
402 | /* form multiplication mask */ |
403 | movd_m2r(sf->Amask, mm7); /* 0000F000 -> mm7 */ |
404 | punpcklbw_r2r(mm7, mm7); /* FF000000 -> mm7 */ |
405 | pcmpeqb_r2r(mm0, mm0); /* FFFFFFFF -> mm0 */ |
406 | movq_r2r(mm0, mm3); /* FFFFFFFF -> mm3 (for later) */ |
407 | pxor_r2r(mm0, mm7); /* 00FFFFFF -> mm7 (mult mask) */ |
408 | /* form channel masks */ |
409 | movq_r2r(mm7, mm0); /* 00FFFFFF -> mm0 */ |
410 | packsswb_r2r(mm6, mm0); /* 00000FFF -> mm0 (channel mask) */ |
411 | packsswb_r2r(mm6, mm3); /* 0000FFFF -> mm3 */ |
412 | pxor_r2r(mm0, mm3); /* 0000F000 -> mm3 (~channel mask) */ |
413 | /* get alpha channel shift */ |
414 | __asm__ __volatile__ ( |
415 | "movd %0, %%mm5" |
416 | : : "rm" ((Uint32) sf->Ashift) ); /* Ashift -> mm5 */ |
417 | |
418 | while(height--) { |
419 | DUFFS_LOOP4({ |
420 | Uint32 alpha = *srcp & amask; |
421 | /* FIXME: Here we special-case opaque alpha since the |
422 | compositioning used (>>8 instead of /255) doesn't handle |
423 | it correctly. Also special-case alpha=0 for speed? |
424 | Benchmark this! */ |
425 | if(alpha == 0) { |
426 | /* do nothing */ |
427 | } else if(alpha == amask) { |
428 | /* opaque alpha -- copy RGB, keep dst alpha */ |
429 | /* using MMX here to free up regular registers for other things */ |
430 | movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/ |
431 | movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/ |
432 | pand_r2r(mm0, mm1); /* src & chanmask -> mm1 */ |
433 | pand_r2r(mm3, mm2); /* dst & ~chanmask -> mm2 */ |
434 | por_r2r(mm1, mm2); /* src | dst -> mm2 */ |
435 | movd_r2m(mm2, (*dstp)); /* mm2 -> dst */ |
436 | } else { |
437 | movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/ |
438 | punpcklbw_r2r(mm6, mm1); /* 0A0R0G0B -> mm1 */ |
439 | |
440 | movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/ |
441 | punpcklbw_r2r(mm6, mm2); /* 0A0R0G0B -> mm2 */ |
442 | |
443 | __asm__ __volatile__ ( |
444 | "movd %0, %%mm4" |
445 | : : "r" (alpha) ); /* 0000A000 -> mm4 */ |
446 | psrld_r2r(mm5, mm4); /* mm4 >> mm5 -> mm4 (0000000A) */ |
447 | punpcklwd_r2r(mm4, mm4); /* 00000A0A -> mm4 */ |
448 | punpcklwd_r2r(mm4, mm4); /* 0A0A0A0A -> mm4 */ |
449 | pand_r2r(mm7, mm4); /* 000A0A0A -> mm4, preserve dst alpha on add */ |
450 | |
451 | /* blend */ |
452 | psubw_r2r(mm2, mm1);/* src - dst -> mm1 */ |
453 | pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */ |
454 | psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1(000R0G0B) */ |
455 | paddb_r2r(mm1, mm2); /* mm1 + mm2(dst) -> mm2 */ |
456 | |
457 | packuswb_r2r(mm6, mm2); /* 0000ARGB -> mm2 */ |
458 | movd_r2m(mm2, *dstp);/* mm2 -> dst */ |
459 | } |
460 | ++srcp; |
461 | ++dstp; |
462 | }, width); |
463 | srcp += srcskip; |
464 | dstp += dstskip; |
465 | } |
466 | emms(); |
467 | } |
468 | /* End GCC_ASMBLIT */ |
469 | |
470 | #elif MSVC_ASMBLIT |
471 | /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */ |
472 | static void BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo *info) |
473 | { |
474 | int width = info->d_width; |
475 | int height = info->d_height; |
476 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
477 | int srcskip = info->s_skip >> 2; |
478 | Uint32 *dstp = (Uint32 *)info->d_pixels; |
479 | int dstskip = info->d_skip >> 2; |
480 | Uint32 dalpha = info->dst->Amask; |
481 | |
482 | __m64 src1, src2, dst1, dst2, lmask, hmask, dsta; |
483 | |
484 | hmask = _mm_set_pi32(0x00fefefe, 0x00fefefe); /* alpha128 mask -> hmask */ |
485 | lmask = _mm_set_pi32(0x00010101, 0x00010101); /* !alpha128 mask -> lmask */ |
486 | dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */ |
487 | |
488 | while (height--) { |
489 | int n = width; |
490 | if ( n & 1 ) { |
491 | Uint32 s = *srcp++; |
492 | Uint32 d = *dstp; |
493 | *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1) |
494 | + (s & d & 0x00010101)) | dalpha; |
495 | n--; |
496 | } |
497 | |
498 | for (n >>= 1; n > 0; --n) { |
499 | dst1 = *(__m64*)dstp; /* 2 x dst -> dst1(ARGBARGB) */ |
500 | dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */ |
501 | |
502 | src1 = *(__m64*)srcp; /* 2 x src -> src1(ARGBARGB) */ |
503 | src2 = src1; /* 2 x src -> src2(ARGBARGB) */ |
504 | |
505 | dst2 = _mm_and_si64(dst2, hmask); /* dst & mask -> dst2 */ |
506 | src2 = _mm_and_si64(src2, hmask); /* src & mask -> src2 */ |
507 | src2 = _mm_add_pi32(src2, dst2); /* dst2 + src2 -> src2 */ |
508 | src2 = _mm_srli_pi32(src2, 1); /* src2 >> 1 -> src2 */ |
509 | |
510 | dst1 = _mm_and_si64(dst1, src1); /* src & dst -> dst1 */ |
511 | dst1 = _mm_and_si64(dst1, lmask); /* dst1 & !mask -> dst1 */ |
512 | dst1 = _mm_add_pi32(dst1, src2); /* src2 + dst1 -> dst1 */ |
513 | dst1 = _mm_or_si64(dst1, dsta); /* dsta(full alpha) | dst1 -> dst1 */ |
514 | |
515 | *(__m64*)dstp = dst1; /* dst1 -> 2 x dst pixels */ |
516 | dstp += 2; |
517 | srcp += 2; |
518 | } |
519 | |
520 | srcp += srcskip; |
521 | dstp += dstskip; |
522 | } |
523 | _mm_empty(); |
524 | } |
525 | |
526 | /* fast RGB888->(A)RGB888 blending with surface alpha */ |
527 | static void BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo *info) |
528 | { |
529 | SDL_PixelFormat* df = info->dst; |
530 | Uint32 chanmask = df->Rmask | df->Gmask | df->Bmask; |
531 | unsigned alpha = info->src->alpha; |
532 | |
533 | if (alpha == 128 && (df->Rmask | df->Gmask | df->Bmask) == 0x00FFFFFF) { |
534 | /* only call a128 version when R,G,B occupy lower bits */ |
535 | BlitRGBtoRGBSurfaceAlpha128MMX(info); |
536 | } else { |
537 | int width = info->d_width; |
538 | int height = info->d_height; |
539 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
540 | int srcskip = info->s_skip >> 2; |
541 | Uint32 *dstp = (Uint32 *)info->d_pixels; |
542 | int dstskip = info->d_skip >> 2; |
543 | Uint32 dalpha = df->Amask; |
544 | Uint32 amult; |
545 | |
546 | __m64 src1, src2, dst1, dst2, mm_alpha, mm_zero, dsta; |
547 | |
548 | mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ |
549 | /* form the alpha mult */ |
550 | amult = alpha | (alpha << 8); |
551 | amult = amult | (amult << 16); |
552 | chanmask = (0xff << df->Rshift) | (0xff << df->Gshift) | (0xff << df->Bshift); |
553 | mm_alpha = _mm_set_pi32(0, amult & chanmask); /* 0000AAAA -> mm_alpha, minus 1 chan */ |
554 | mm_alpha = _mm_unpacklo_pi8(mm_alpha, mm_zero); /* 0A0A0A0A -> mm_alpha, minus 1 chan */ |
555 | /* at this point mm_alpha can be 000A0A0A or 0A0A0A00 or another combo */ |
556 | dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */ |
557 | |
558 | while (height--) { |
559 | int n = width; |
560 | if (n & 1) { |
561 | /* One Pixel Blend */ |
562 | src2 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src2 (0000ARGB)*/ |
563 | src2 = _mm_unpacklo_pi8(src2, mm_zero); /* 0A0R0G0B -> src2 */ |
564 | |
565 | dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/ |
566 | dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */ |
567 | |
568 | src2 = _mm_sub_pi16(src2, dst1); /* src2 - dst2 -> src2 */ |
569 | src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ |
570 | src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */ |
571 | dst1 = _mm_add_pi8(src2, dst1); /* src2 + dst1 -> dst1 */ |
572 | |
573 | dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */ |
574 | dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */ |
575 | *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */ |
576 | |
577 | ++srcp; |
578 | ++dstp; |
579 | |
580 | n--; |
581 | } |
582 | |
583 | for (n >>= 1; n > 0; --n) { |
584 | /* Two Pixels Blend */ |
585 | src1 = *(__m64*)srcp; /* 2 x src -> src1(ARGBARGB)*/ |
586 | src2 = src1; /* 2 x src -> src2(ARGBARGB) */ |
587 | src1 = _mm_unpacklo_pi8(src1, mm_zero); /* low - 0A0R0G0B -> src1 */ |
588 | src2 = _mm_unpackhi_pi8(src2, mm_zero); /* high - 0A0R0G0B -> src2 */ |
589 | |
590 | dst1 = *(__m64*)dstp;/* 2 x dst -> dst1(ARGBARGB) */ |
591 | dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */ |
592 | dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* low - 0A0R0G0B -> dst1 */ |
593 | dst2 = _mm_unpackhi_pi8(dst2, mm_zero); /* high - 0A0R0G0B -> dst2 */ |
594 | |
595 | src1 = _mm_sub_pi16(src1, dst1);/* src1 - dst1 -> src1 */ |
596 | src1 = _mm_mullo_pi16(src1, mm_alpha); /* src1 * alpha -> src1 */ |
597 | src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1 */ |
598 | dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst1) -> dst1 */ |
599 | |
600 | src2 = _mm_sub_pi16(src2, dst2);/* src2 - dst2 -> src2 */ |
601 | src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ |
602 | src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */ |
603 | dst2 = _mm_add_pi8(src2, dst2); /* src2 + dst2(dst2) -> dst2 */ |
604 | |
605 | dst1 = _mm_packs_pu16(dst1, dst2); /* 0A0R0G0B(res1), 0A0R0G0B(res2) -> dst1(ARGBARGB) */ |
606 | dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */ |
607 | |
608 | *(__m64*)dstp = dst1; /* dst1 -> 2 x pixel */ |
609 | |
610 | srcp += 2; |
611 | dstp += 2; |
612 | } |
613 | srcp += srcskip; |
614 | dstp += dstskip; |
615 | } |
616 | _mm_empty(); |
617 | } |
618 | } |
619 | |
620 | /* fast ARGB888->(A)RGB888 blending with pixel alpha */ |
621 | static void BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo *info) |
622 | { |
623 | int width = info->d_width; |
624 | int height = info->d_height; |
625 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
626 | int srcskip = info->s_skip >> 2; |
627 | Uint32 *dstp = (Uint32 *)info->d_pixels; |
628 | int dstskip = info->d_skip >> 2; |
629 | SDL_PixelFormat* sf = info->src; |
630 | Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask; |
631 | Uint32 amask = sf->Amask; |
632 | Uint32 ashift = sf->Ashift; |
633 | Uint64 multmask; |
634 | |
635 | __m64 src1, dst1, mm_alpha, mm_zero, dmask; |
636 | |
637 | mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ |
638 | multmask = ~(0xFFFFi64 << (ashift * 2)); |
639 | dmask = *(__m64*) &multmask; /* dst alpha mask -> dmask */ |
640 | |
641 | while(height--) { |
642 | DUFFS_LOOP4({ |
643 | Uint32 alpha = *srcp & amask; |
644 | if (alpha == 0) { |
645 | /* do nothing */ |
646 | } else if (alpha == amask) { |
647 | /* opaque alpha -- copy RGB, keep dst alpha */ |
648 | *dstp = (*srcp & chanmask) | (*dstp & ~chanmask); |
649 | } else { |
650 | src1 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src1 (0000ARGB)*/ |
651 | src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */ |
652 | |
653 | dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/ |
654 | dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */ |
655 | |
656 | mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */ |
657 | mm_alpha = _mm_srli_si64(mm_alpha, ashift); /* mm_alpha >> ashift -> mm_alpha(0000000A) */ |
658 | mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ |
659 | mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ |
660 | mm_alpha = _mm_and_si64(mm_alpha, dmask); /* 000A0A0A -> mm_alpha, preserve dst alpha on add */ |
661 | |
662 | /* blend */ |
663 | src1 = _mm_sub_pi16(src1, dst1);/* src1 - dst1 -> src1 */ |
664 | src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src1 - dst1) * alpha -> src1 */ |
665 | src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */ |
666 | dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1 -> dst1(0A0R0G0B) */ |
667 | dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */ |
668 | |
669 | *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */ |
670 | } |
671 | ++srcp; |
672 | ++dstp; |
673 | }, width); |
674 | srcp += srcskip; |
675 | dstp += dstskip; |
676 | } |
677 | _mm_empty(); |
678 | } |
679 | /* End MSVC_ASMBLIT */ |
680 | |
681 | #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */ |
682 | |
683 | #if SDL_ALTIVEC_BLITTERS |
684 | #if __MWERKS__ |
685 | #pragma altivec_model on |
686 | #endif |
687 | #if HAVE_ALTIVEC_H |
688 | #include <altivec.h> |
689 | #endif |
690 | #include <assert.h> |
691 | |
692 | #if (defined(__MACOSX__) && (__GNUC__ < 4)) |
693 | #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \ |
694 | (vector unsigned char) ( a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p ) |
695 | #define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \ |
696 | (vector unsigned short) ( a,b,c,d,e,f,g,h ) |
697 | #else |
698 | #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \ |
699 | (vector unsigned char) { a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p } |
700 | #define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \ |
701 | (vector unsigned short) { a,b,c,d,e,f,g,h } |
702 | #endif |
703 | |
704 | #define UNALIGNED_PTR(x) (((size_t) x) & 0x0000000F) |
705 | #define VECPRINT(msg, v) do { \ |
706 | vector unsigned int tmpvec = (vector unsigned int)(v); \ |
707 | unsigned int *vp = (unsigned int *)&tmpvec; \ |
708 | printf("%s = %08X %08X %08X %08X\n", msg, vp[0], vp[1], vp[2], vp[3]); \ |
709 | } while (0) |
710 | |
711 | /* the permuation vector that takes the high bytes out of all the appropriate shorts |
712 | (vector unsigned char)( |
713 | 0x00, 0x10, 0x02, 0x12, |
714 | 0x04, 0x14, 0x06, 0x16, |
715 | 0x08, 0x18, 0x0A, 0x1A, |
716 | 0x0C, 0x1C, 0x0E, 0x1E ); |
717 | */ |
718 | #define VEC_MERGE_PERMUTE() (vec_add(vec_lvsl(0, (int*)NULL), (vector unsigned char)vec_splat_u16(0x0F))) |
719 | #define VEC_U32_24() (vec_add(vec_splat_u32(12), vec_splat_u32(12))) |
720 | #define VEC_ALPHA_MASK() ((vector unsigned char)vec_sl((vector unsigned int)vec_splat_s8(-1), VEC_U32_24())) |
721 | #define VEC_ALIGNER(src) ((UNALIGNED_PTR(src)) \ |
722 | ? vec_lvsl(0, src) \ |
723 | : vec_add(vec_lvsl(8, src), vec_splat_u8(8))) |
724 | |
725 | |
726 | #define VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1_16, v8_16) do { \ |
727 | /* vtemp1 contains source AAGGAAGGAAGGAAGG */ \ |
728 | vector unsigned short vtemp1 = vec_mule(vs, valpha); \ |
729 | /* vtemp2 contains source RRBBRRBBRRBBRRBB */ \ |
730 | vector unsigned short vtemp2 = vec_mulo(vs, valpha); \ |
731 | /* valpha2 is 255-alpha */ \ |
732 | vector unsigned char valpha2 = vec_nor(valpha, valpha); \ |
733 | /* vtemp3 contains dest AAGGAAGGAAGGAAGG */ \ |
734 | vector unsigned short vtemp3 = vec_mule(vd, valpha2); \ |
735 | /* vtemp4 contains dest RRBBRRBBRRBBRRBB */ \ |
736 | vector unsigned short vtemp4 = vec_mulo(vd, valpha2); \ |
737 | /* add source and dest */ \ |
738 | vtemp1 = vec_add(vtemp1, vtemp3); \ |
739 | vtemp2 = vec_add(vtemp2, vtemp4); \ |
740 | /* vtemp1 = (vtemp1 + 1) + ((vtemp1 + 1) >> 8) */ \ |
741 | vtemp1 = vec_add(vtemp1, v1_16); \ |
742 | vtemp3 = vec_sr(vtemp1, v8_16); \ |
743 | vtemp1 = vec_add(vtemp1, vtemp3); \ |
744 | /* vtemp2 = (vtemp2 + 1) + ((vtemp2 + 1) >> 8) */ \ |
745 | vtemp2 = vec_add(vtemp2, v1_16); \ |
746 | vtemp4 = vec_sr(vtemp2, v8_16); \ |
747 | vtemp2 = vec_add(vtemp2, vtemp4); \ |
748 | /* (>>8) and get ARGBARGBARGBARGB */ \ |
749 | vd = (vector unsigned char)vec_perm(vtemp1, vtemp2, mergePermute); \ |
750 | } while (0) |
751 | |
752 | /* Calculate the permute vector used for 32->32 swizzling */ |
753 | static vector unsigned char calc_swizzle32(const SDL_PixelFormat *srcfmt, |
754 | const SDL_PixelFormat *dstfmt) |
755 | { |
756 | /* |
757 | * We have to assume that the bits that aren't used by other |
758 | * colors is alpha, and it's one complete byte, since some formats |
759 | * leave alpha with a zero mask, but we should still swizzle the bits. |
760 | */ |
761 | /* ARGB */ |
762 | const static struct SDL_PixelFormat default_pixel_format = { |
763 | NULL, 0, 0, |
764 | 0, 0, 0, 0, |
765 | 16, 8, 0, 24, |
766 | 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000, |
767 | 0, 0}; |
768 | if (!srcfmt) { |
769 | srcfmt = &default_pixel_format; |
770 | } |
771 | if (!dstfmt) { |
772 | dstfmt = &default_pixel_format; |
773 | } |
774 | const vector unsigned char plus = VECUINT8_LITERAL |
775 | ( 0x00, 0x00, 0x00, 0x00, |
776 | 0x04, 0x04, 0x04, 0x04, |
777 | 0x08, 0x08, 0x08, 0x08, |
778 | 0x0C, 0x0C, 0x0C, 0x0C ); |
779 | vector unsigned char vswiz; |
780 | vector unsigned int srcvec; |
781 | #define RESHIFT(X) (3 - ((X) >> 3)) |
782 | Uint32 rmask = RESHIFT(srcfmt->Rshift) << (dstfmt->Rshift); |
783 | Uint32 gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift); |
784 | Uint32 bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift); |
785 | Uint32 amask; |
786 | /* Use zero for alpha if either surface doesn't have alpha */ |
787 | if (dstfmt->Amask) { |
788 | amask = ((srcfmt->Amask) ? RESHIFT(srcfmt->Ashift) : 0x10) << (dstfmt->Ashift); |
789 | } else { |
790 | amask = 0x10101010 & ((dstfmt->Rmask | dstfmt->Gmask | dstfmt->Bmask) ^ 0xFFFFFFFF); |
791 | } |
792 | #undef RESHIFT |
793 | ((unsigned int *)(char*)&srcvec)[0] = (rmask | gmask | bmask | amask); |
794 | vswiz = vec_add(plus, (vector unsigned char)vec_splat(srcvec, 0)); |
795 | return(vswiz); |
796 | } |
797 | |
798 | static void Blit32to565PixelAlphaAltivec(SDL_BlitInfo *info) |
799 | { |
800 | int height = info->d_height; |
801 | Uint8 *src = (Uint8 *)info->s_pixels; |
802 | int srcskip = info->s_skip; |
803 | Uint8 *dst = (Uint8 *)info->d_pixels; |
804 | int dstskip = info->d_skip; |
805 | SDL_PixelFormat *srcfmt = info->src; |
806 | |
807 | vector unsigned char v0 = vec_splat_u8(0); |
808 | vector unsigned short v8_16 = vec_splat_u16(8); |
809 | vector unsigned short v1_16 = vec_splat_u16(1); |
810 | vector unsigned short v2_16 = vec_splat_u16(2); |
811 | vector unsigned short v3_16 = vec_splat_u16(3); |
812 | vector unsigned int v8_32 = vec_splat_u32(8); |
813 | vector unsigned int v16_32 = vec_add(v8_32, v8_32); |
814 | vector unsigned short v3f = VECUINT16_LITERAL( |
815 | 0x003f, 0x003f, 0x003f, 0x003f, |
816 | 0x003f, 0x003f, 0x003f, 0x003f); |
817 | vector unsigned short vfc = VECUINT16_LITERAL( |
818 | 0x00fc, 0x00fc, 0x00fc, 0x00fc, |
819 | 0x00fc, 0x00fc, 0x00fc, 0x00fc); |
820 | |
821 | /* |
822 | 0x10 - 0x1f is the alpha |
823 | 0x00 - 0x0e evens are the red |
824 | 0x01 - 0x0f odds are zero |
825 | */ |
826 | vector unsigned char vredalpha1 = VECUINT8_LITERAL( |
827 | 0x10, 0x00, 0x01, 0x01, |
828 | 0x10, 0x02, 0x01, 0x01, |
829 | 0x10, 0x04, 0x01, 0x01, |
830 | 0x10, 0x06, 0x01, 0x01 |
831 | ); |
832 | vector unsigned char vredalpha2 = (vector unsigned char)( |
833 | vec_add((vector unsigned int)vredalpha1, vec_sl(v8_32, v16_32)) |
834 | ); |
835 | /* |
836 | 0x00 - 0x0f is ARxx ARxx ARxx ARxx |
837 | 0x11 - 0x0f odds are blue |
838 | */ |
839 | vector unsigned char vblue1 = VECUINT8_LITERAL( |
840 | 0x00, 0x01, 0x02, 0x11, |
841 | 0x04, 0x05, 0x06, 0x13, |
842 | 0x08, 0x09, 0x0a, 0x15, |
843 | 0x0c, 0x0d, 0x0e, 0x17 |
844 | ); |
845 | vector unsigned char vblue2 = (vector unsigned char)( |
846 | vec_add((vector unsigned int)vblue1, v8_32) |
847 | ); |
848 | /* |
849 | 0x00 - 0x0f is ARxB ARxB ARxB ARxB |
850 | 0x10 - 0x0e evens are green |
851 | */ |
852 | vector unsigned char vgreen1 = VECUINT8_LITERAL( |
853 | 0x00, 0x01, 0x10, 0x03, |
854 | 0x04, 0x05, 0x12, 0x07, |
855 | 0x08, 0x09, 0x14, 0x0b, |
856 | 0x0c, 0x0d, 0x16, 0x0f |
857 | ); |
858 | vector unsigned char vgreen2 = (vector unsigned char)( |
859 | vec_add((vector unsigned int)vgreen1, vec_sl(v8_32, v8_32)) |
860 | ); |
861 | vector unsigned char vgmerge = VECUINT8_LITERAL( |
862 | 0x00, 0x02, 0x00, 0x06, |
863 | 0x00, 0x0a, 0x00, 0x0e, |
864 | 0x00, 0x12, 0x00, 0x16, |
865 | 0x00, 0x1a, 0x00, 0x1e); |
866 | vector unsigned char mergePermute = VEC_MERGE_PERMUTE(); |
867 | vector unsigned char vpermute = calc_swizzle32(srcfmt, NULL); |
868 | vector unsigned char valphaPermute = vec_and(vec_lvsl(0, (int *)NULL), vec_splat_u8(0xC)); |
869 | |
870 | vector unsigned short vf800 = (vector unsigned short)vec_splat_u8(-7); |
871 | vf800 = vec_sl(vf800, vec_splat_u16(8)); |
872 | |
873 | while(height--) { |
874 | int extrawidth; |
875 | vector unsigned char valigner; |
876 | vector unsigned char vsrc; |
877 | vector unsigned char voverflow; |
878 | int width = info->d_width; |
879 | |
880 | #define ONE_PIXEL_BLEND(condition, widthvar) \ |
881 | while (condition) { \ |
882 | Uint32 Pixel; \ |
883 | unsigned sR, sG, sB, dR, dG, dB, sA; \ |
884 | DISEMBLE_RGBA(src, 4, srcfmt, Pixel, sR, sG, sB, sA); \ |
885 | if(sA) { \ |
886 | unsigned short dstpixel = *((unsigned short *)dst); \ |
887 | dR = (dstpixel >> 8) & 0xf8; \ |
888 | dG = (dstpixel >> 3) & 0xfc; \ |
889 | dB = (dstpixel << 3) & 0xf8; \ |
890 | ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ |
891 | *((unsigned short *)dst) = ( \ |
892 | ((dR & 0xf8) << 8) | ((dG & 0xfc) << 3) | (dB >> 3) \ |
893 | ); \ |
894 | } \ |
895 | src += 4; \ |
896 | dst += 2; \ |
897 | widthvar--; \ |
898 | } |
899 | ONE_PIXEL_BLEND((UNALIGNED_PTR(dst)) && (width), width); |
900 | extrawidth = (width % 8); |
901 | valigner = VEC_ALIGNER(src); |
902 | vsrc = (vector unsigned char)vec_ld(0, src); |
903 | width -= extrawidth; |
904 | while (width) { |
905 | vector unsigned char valpha; |
906 | vector unsigned char vsrc1, vsrc2; |
907 | vector unsigned char vdst1, vdst2; |
908 | vector unsigned short vR, vG, vB; |
909 | vector unsigned short vpixel, vrpixel, vgpixel, vbpixel; |
910 | |
911 | /* Load 8 pixels from src as ARGB */ |
912 | voverflow = (vector unsigned char)vec_ld(15, src); |
913 | vsrc = vec_perm(vsrc, voverflow, valigner); |
914 | vsrc1 = vec_perm(vsrc, vsrc, vpermute); |
915 | src += 16; |
916 | vsrc = (vector unsigned char)vec_ld(15, src); |
917 | voverflow = vec_perm(voverflow, vsrc, valigner); |
918 | vsrc2 = vec_perm(voverflow, voverflow, vpermute); |
919 | src += 16; |
920 | |
921 | /* Load 8 pixels from dst as XRGB */ |
922 | voverflow = vec_ld(0, dst); |
923 | vR = vec_and((vector unsigned short)voverflow, vf800); |
924 | vB = vec_sl((vector unsigned short)voverflow, v3_16); |
925 | vG = vec_sl(vB, v2_16); |
926 | vdst1 = (vector unsigned char)vec_perm((vector unsigned char)vR, (vector unsigned char)vR, vredalpha1); |
927 | vdst1 = vec_perm(vdst1, (vector unsigned char)vB, vblue1); |
928 | vdst1 = vec_perm(vdst1, (vector unsigned char)vG, vgreen1); |
929 | vdst2 = (vector unsigned char)vec_perm((vector unsigned char)vR, (vector unsigned char)vR, vredalpha2); |
930 | vdst2 = vec_perm(vdst2, (vector unsigned char)vB, vblue2); |
931 | vdst2 = vec_perm(vdst2, (vector unsigned char)vG, vgreen2); |
932 | |
933 | /* Alpha blend 8 pixels as ARGB */ |
934 | valpha = vec_perm(vsrc1, v0, valphaPermute); |
935 | VEC_MULTIPLY_ALPHA(vsrc1, vdst1, valpha, mergePermute, v1_16, v8_16); |
936 | valpha = vec_perm(vsrc2, v0, valphaPermute); |
937 | VEC_MULTIPLY_ALPHA(vsrc2, vdst2, valpha, mergePermute, v1_16, v8_16); |
938 | |
939 | /* Convert 8 pixels to 565 */ |
940 | vpixel = (vector unsigned short)vec_packpx((vector unsigned int)vdst1, (vector unsigned int)vdst2); |
941 | vgpixel = (vector unsigned short)vec_perm(vdst1, vdst2, vgmerge); |
942 | vgpixel = vec_and(vgpixel, vfc); |
943 | vgpixel = vec_sl(vgpixel, v3_16); |
944 | vrpixel = vec_sl(vpixel, v1_16); |
945 | vrpixel = vec_and(vrpixel, vf800); |
946 | vbpixel = vec_and(vpixel, v3f); |
947 | vdst1 = vec_or((vector unsigned char)vrpixel, (vector unsigned char)vgpixel); |
948 | vdst1 = vec_or(vdst1, (vector unsigned char)vbpixel); |
949 | |
950 | /* Store 8 pixels */ |
951 | vec_st(vdst1, 0, dst); |
952 | |
953 | width -= 8; |
954 | dst += 16; |
955 | } |
956 | ONE_PIXEL_BLEND((extrawidth), extrawidth); |
957 | #undef ONE_PIXEL_BLEND |
958 | src += srcskip; |
959 | dst += dstskip; |
960 | } |
961 | } |
962 | |
963 | static void Blit32to32SurfaceAlphaKeyAltivec(SDL_BlitInfo *info) |
964 | { |
965 | unsigned alpha = info->src->alpha; |
966 | int height = info->d_height; |
967 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
968 | int srcskip = info->s_skip >> 2; |
969 | Uint32 *dstp = (Uint32 *)info->d_pixels; |
970 | int dstskip = info->d_skip >> 2; |
971 | SDL_PixelFormat *srcfmt = info->src; |
972 | SDL_PixelFormat *dstfmt = info->dst; |
973 | unsigned sA = srcfmt->alpha; |
974 | unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; |
975 | Uint32 rgbmask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask; |
976 | Uint32 ckey = info->src->colorkey; |
977 | vector unsigned char mergePermute; |
978 | vector unsigned char vsrcPermute; |
979 | vector unsigned char vdstPermute; |
980 | vector unsigned char vsdstPermute; |
981 | vector unsigned char valpha; |
982 | vector unsigned char valphamask; |
983 | vector unsigned char vbits; |
984 | vector unsigned char v0; |
985 | vector unsigned short v1; |
986 | vector unsigned short v8; |
987 | vector unsigned int vckey; |
988 | vector unsigned int vrgbmask; |
989 | |
990 | mergePermute = VEC_MERGE_PERMUTE(); |
991 | v0 = vec_splat_u8(0); |
992 | v1 = vec_splat_u16(1); |
993 | v8 = vec_splat_u16(8); |
994 | |
995 | /* set the alpha to 255 on the destination surf */ |
996 | valphamask = VEC_ALPHA_MASK(); |
997 | |
998 | vsrcPermute = calc_swizzle32(srcfmt, NULL); |
999 | vdstPermute = calc_swizzle32(NULL, dstfmt); |
1000 | vsdstPermute = calc_swizzle32(dstfmt, NULL); |
1001 | |
1002 | /* set a vector full of alpha and 255-alpha */ |
1003 | ((unsigned char *)&valpha)[0] = alpha; |
1004 | valpha = vec_splat(valpha, 0); |
1005 | vbits = (vector unsigned char)vec_splat_s8(-1); |
1006 | |
1007 | ckey &= rgbmask; |
1008 | ((unsigned int *)(char*)&vckey)[0] = ckey; |
1009 | vckey = vec_splat(vckey, 0); |
1010 | ((unsigned int *)(char*)&vrgbmask)[0] = rgbmask; |
1011 | vrgbmask = vec_splat(vrgbmask, 0); |
1012 | |
1013 | while(height--) { |
1014 | int width = info->d_width; |
1015 | #define ONE_PIXEL_BLEND(condition, widthvar) \ |
1016 | while (condition) { \ |
1017 | Uint32 Pixel; \ |
1018 | unsigned sR, sG, sB, dR, dG, dB; \ |
1019 | RETRIEVE_RGB_PIXEL(((Uint8 *)srcp), 4, Pixel); \ |
1020 | if(sA && Pixel != ckey) { \ |
1021 | RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB); \ |
1022 | DISEMBLE_RGB(((Uint8 *)dstp), 4, dstfmt, Pixel, dR, dG, dB); \ |
1023 | ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ |
1024 | ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \ |
1025 | } \ |
1026 | dstp++; \ |
1027 | srcp++; \ |
1028 | widthvar--; \ |
1029 | } |
1030 | ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
1031 | if (width > 0) { |
1032 | int extrawidth = (width % 4); |
1033 | vector unsigned char valigner = VEC_ALIGNER(srcp); |
1034 | vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp); |
1035 | width -= extrawidth; |
1036 | while (width) { |
1037 | vector unsigned char vsel; |
1038 | vector unsigned char voverflow; |
1039 | vector unsigned char vd; |
1040 | vector unsigned char vd_orig; |
1041 | |
1042 | /* s = *srcp */ |
1043 | voverflow = (vector unsigned char)vec_ld(15, srcp); |
1044 | vs = vec_perm(vs, voverflow, valigner); |
1045 | |
1046 | /* vsel is set for items that match the key */ |
1047 | vsel = (vector unsigned char)vec_and((vector unsigned int)vs, vrgbmask); |
1048 | vsel = (vector unsigned char)vec_cmpeq((vector unsigned int)vsel, vckey); |
1049 | |
1050 | /* permute to source format */ |
1051 | vs = vec_perm(vs, valpha, vsrcPermute); |
1052 | |
1053 | /* d = *dstp */ |
1054 | vd = (vector unsigned char)vec_ld(0, dstp); |
1055 | vd_orig = vd = vec_perm(vd, v0, vsdstPermute); |
1056 | |
1057 | VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
1058 | |
1059 | /* set the alpha channel to full on */ |
1060 | vd = vec_or(vd, valphamask); |
1061 | |
1062 | /* mask out color key */ |
1063 | vd = vec_sel(vd, vd_orig, vsel); |
1064 | |
1065 | /* permute to dest format */ |
1066 | vd = vec_perm(vd, vbits, vdstPermute); |
1067 | |
1068 | /* *dstp = res */ |
1069 | vec_st((vector unsigned int)vd, 0, dstp); |
1070 | |
1071 | srcp += 4; |
1072 | dstp += 4; |
1073 | width -= 4; |
1074 | vs = voverflow; |
1075 | } |
1076 | ONE_PIXEL_BLEND((extrawidth), extrawidth); |
1077 | } |
1078 | #undef ONE_PIXEL_BLEND |
1079 | |
1080 | srcp += srcskip; |
1081 | dstp += dstskip; |
1082 | } |
1083 | } |
1084 | |
1085 | |
1086 | static void Blit32to32PixelAlphaAltivec(SDL_BlitInfo *info) |
1087 | { |
1088 | int width = info->d_width; |
1089 | int height = info->d_height; |
1090 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
1091 | int srcskip = info->s_skip >> 2; |
1092 | Uint32 *dstp = (Uint32 *)info->d_pixels; |
1093 | int dstskip = info->d_skip >> 2; |
1094 | SDL_PixelFormat *srcfmt = info->src; |
1095 | SDL_PixelFormat *dstfmt = info->dst; |
1096 | vector unsigned char mergePermute; |
1097 | vector unsigned char valphaPermute; |
1098 | vector unsigned char vsrcPermute; |
1099 | vector unsigned char vdstPermute; |
1100 | vector unsigned char vsdstPermute; |
1101 | vector unsigned char valphamask; |
1102 | vector unsigned char vpixelmask; |
1103 | vector unsigned char v0; |
1104 | vector unsigned short v1; |
1105 | vector unsigned short v8; |
1106 | |
1107 | v0 = vec_splat_u8(0); |
1108 | v1 = vec_splat_u16(1); |
1109 | v8 = vec_splat_u16(8); |
1110 | mergePermute = VEC_MERGE_PERMUTE(); |
1111 | valphamask = VEC_ALPHA_MASK(); |
1112 | valphaPermute = vec_and(vec_lvsl(0, (int *)NULL), vec_splat_u8(0xC)); |
1113 | vpixelmask = vec_nor(valphamask, v0); |
1114 | vsrcPermute = calc_swizzle32(srcfmt, NULL); |
1115 | vdstPermute = calc_swizzle32(NULL, dstfmt); |
1116 | vsdstPermute = calc_swizzle32(dstfmt, NULL); |
1117 | |
1118 | while ( height-- ) { |
1119 | width = info->d_width; |
1120 | #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \ |
1121 | Uint32 Pixel; \ |
1122 | unsigned sR, sG, sB, dR, dG, dB, sA, dA; \ |
1123 | DISEMBLE_RGBA((Uint8 *)srcp, 4, srcfmt, Pixel, sR, sG, sB, sA); \ |
1124 | if(sA) { \ |
1125 | DISEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, Pixel, dR, dG, dB, dA); \ |
1126 | ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ |
1127 | ASSEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, dR, dG, dB, dA); \ |
1128 | } \ |
1129 | ++srcp; \ |
1130 | ++dstp; \ |
1131 | widthvar--; \ |
1132 | } |
1133 | ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
1134 | if (width > 0) { |
1135 | /* vsrcPermute */ |
1136 | /* vdstPermute */ |
1137 | int extrawidth = (width % 4); |
1138 | vector unsigned char valigner = VEC_ALIGNER(srcp); |
1139 | vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp); |
1140 | width -= extrawidth; |
1141 | while (width) { |
1142 | vector unsigned char voverflow; |
1143 | vector unsigned char vd; |
1144 | vector unsigned char valpha; |
1145 | vector unsigned char vdstalpha; |
1146 | /* s = *srcp */ |
1147 | voverflow = (vector unsigned char)vec_ld(15, srcp); |
1148 | vs = vec_perm(vs, voverflow, valigner); |
1149 | vs = vec_perm(vs, v0, vsrcPermute); |
1150 | |
1151 | valpha = vec_perm(vs, v0, valphaPermute); |
1152 | |
1153 | /* d = *dstp */ |
1154 | vd = (vector unsigned char)vec_ld(0, dstp); |
1155 | vd = vec_perm(vd, v0, vsdstPermute); |
1156 | vdstalpha = vec_and(vd, valphamask); |
1157 | |
1158 | VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
1159 | |
1160 | /* set the alpha to the dest alpha */ |
1161 | vd = vec_and(vd, vpixelmask); |
1162 | vd = vec_or(vd, vdstalpha); |
1163 | vd = vec_perm(vd, v0, vdstPermute); |
1164 | |
1165 | /* *dstp = res */ |
1166 | vec_st((vector unsigned int)vd, 0, dstp); |
1167 | |
1168 | srcp += 4; |
1169 | dstp += 4; |
1170 | width -= 4; |
1171 | vs = voverflow; |
1172 | |
1173 | } |
1174 | ONE_PIXEL_BLEND((extrawidth), extrawidth); |
1175 | } |
1176 | srcp += srcskip; |
1177 | dstp += dstskip; |
1178 | #undef ONE_PIXEL_BLEND |
1179 | } |
1180 | } |
1181 | |
1182 | /* fast ARGB888->(A)RGB888 blending with pixel alpha */ |
1183 | static void BlitRGBtoRGBPixelAlphaAltivec(SDL_BlitInfo *info) |
1184 | { |
1185 | int width = info->d_width; |
1186 | int height = info->d_height; |
1187 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
1188 | int srcskip = info->s_skip >> 2; |
1189 | Uint32 *dstp = (Uint32 *)info->d_pixels; |
1190 | int dstskip = info->d_skip >> 2; |
1191 | vector unsigned char mergePermute; |
1192 | vector unsigned char valphaPermute; |
1193 | vector unsigned char valphamask; |
1194 | vector unsigned char vpixelmask; |
1195 | vector unsigned char v0; |
1196 | vector unsigned short v1; |
1197 | vector unsigned short v8; |
1198 | v0 = vec_splat_u8(0); |
1199 | v1 = vec_splat_u16(1); |
1200 | v8 = vec_splat_u16(8); |
1201 | mergePermute = VEC_MERGE_PERMUTE(); |
1202 | valphamask = VEC_ALPHA_MASK(); |
1203 | valphaPermute = vec_and(vec_lvsl(0, (int *)NULL), vec_splat_u8(0xC)); |
1204 | |
1205 | |
1206 | vpixelmask = vec_nor(valphamask, v0); |
1207 | while(height--) { |
1208 | width = info->d_width; |
1209 | #define ONE_PIXEL_BLEND(condition, widthvar) \ |
1210 | while ((condition)) { \ |
1211 | Uint32 dalpha; \ |
1212 | Uint32 d; \ |
1213 | Uint32 s1; \ |
1214 | Uint32 d1; \ |
1215 | Uint32 s = *srcp; \ |
1216 | Uint32 alpha = s >> 24; \ |
1217 | if(alpha) { \ |
1218 | if(alpha == SDL_ALPHA_OPAQUE) { \ |
1219 | *dstp = (s & 0x00ffffff) | (*dstp & 0xff000000); \ |
1220 | } else { \ |
1221 | d = *dstp; \ |
1222 | dalpha = d & 0xff000000; \ |
1223 | s1 = s & 0xff00ff; \ |
1224 | d1 = d & 0xff00ff; \ |
1225 | d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff; \ |
1226 | s &= 0xff00; \ |
1227 | d &= 0xff00; \ |
1228 | d = (d + ((s - d) * alpha >> 8)) & 0xff00; \ |
1229 | *dstp = d1 | d | dalpha; \ |
1230 | } \ |
1231 | } \ |
1232 | ++srcp; \ |
1233 | ++dstp; \ |
1234 | widthvar--; \ |
1235 | } |
1236 | ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
1237 | if (width > 0) { |
1238 | int extrawidth = (width % 4); |
1239 | vector unsigned char valigner = VEC_ALIGNER(srcp); |
1240 | vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp); |
1241 | width -= extrawidth; |
1242 | while (width) { |
1243 | vector unsigned char voverflow; |
1244 | vector unsigned char vd; |
1245 | vector unsigned char valpha; |
1246 | vector unsigned char vdstalpha; |
1247 | /* s = *srcp */ |
1248 | voverflow = (vector unsigned char)vec_ld(15, srcp); |
1249 | vs = vec_perm(vs, voverflow, valigner); |
1250 | |
1251 | valpha = vec_perm(vs, v0, valphaPermute); |
1252 | |
1253 | /* d = *dstp */ |
1254 | vd = (vector unsigned char)vec_ld(0, dstp); |
1255 | vdstalpha = vec_and(vd, valphamask); |
1256 | |
1257 | VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
1258 | |
1259 | /* set the alpha to the dest alpha */ |
1260 | vd = vec_and(vd, vpixelmask); |
1261 | vd = vec_or(vd, vdstalpha); |
1262 | |
1263 | /* *dstp = res */ |
1264 | vec_st((vector unsigned int)vd, 0, dstp); |
1265 | |
1266 | srcp += 4; |
1267 | dstp += 4; |
1268 | width -= 4; |
1269 | vs = voverflow; |
1270 | } |
1271 | ONE_PIXEL_BLEND((extrawidth), extrawidth); |
1272 | } |
1273 | srcp += srcskip; |
1274 | dstp += dstskip; |
1275 | } |
1276 | #undef ONE_PIXEL_BLEND |
1277 | } |
1278 | |
1279 | static void Blit32to32SurfaceAlphaAltivec(SDL_BlitInfo *info) |
1280 | { |
1281 | /* XXX : 6 */ |
1282 | unsigned alpha = info->src->alpha; |
1283 | int height = info->d_height; |
1284 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
1285 | int srcskip = info->s_skip >> 2; |
1286 | Uint32 *dstp = (Uint32 *)info->d_pixels; |
1287 | int dstskip = info->d_skip >> 2; |
1288 | SDL_PixelFormat *srcfmt = info->src; |
1289 | SDL_PixelFormat *dstfmt = info->dst; |
1290 | unsigned sA = srcfmt->alpha; |
1291 | unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; |
1292 | vector unsigned char mergePermute; |
1293 | vector unsigned char vsrcPermute; |
1294 | vector unsigned char vdstPermute; |
1295 | vector unsigned char vsdstPermute; |
1296 | vector unsigned char valpha; |
1297 | vector unsigned char valphamask; |
1298 | vector unsigned char vbits; |
1299 | vector unsigned short v1; |
1300 | vector unsigned short v8; |
1301 | |
1302 | mergePermute = VEC_MERGE_PERMUTE(); |
1303 | v1 = vec_splat_u16(1); |
1304 | v8 = vec_splat_u16(8); |
1305 | |
1306 | /* set the alpha to 255 on the destination surf */ |
1307 | valphamask = VEC_ALPHA_MASK(); |
1308 | |
1309 | vsrcPermute = calc_swizzle32(srcfmt, NULL); |
1310 | vdstPermute = calc_swizzle32(NULL, dstfmt); |
1311 | vsdstPermute = calc_swizzle32(dstfmt, NULL); |
1312 | |
1313 | /* set a vector full of alpha and 255-alpha */ |
1314 | ((unsigned char *)&valpha)[0] = alpha; |
1315 | valpha = vec_splat(valpha, 0); |
1316 | vbits = (vector unsigned char)vec_splat_s8(-1); |
1317 | |
1318 | while(height--) { |
1319 | int width = info->d_width; |
1320 | #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \ |
1321 | Uint32 Pixel; \ |
1322 | unsigned sR, sG, sB, dR, dG, dB; \ |
1323 | DISEMBLE_RGB(((Uint8 *)srcp), 4, srcfmt, Pixel, sR, sG, sB); \ |
1324 | DISEMBLE_RGB(((Uint8 *)dstp), 4, dstfmt, Pixel, dR, dG, dB); \ |
1325 | ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ |
1326 | ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \ |
1327 | ++srcp; \ |
1328 | ++dstp; \ |
1329 | widthvar--; \ |
1330 | } |
1331 | ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
1332 | if (width > 0) { |
1333 | int extrawidth = (width % 4); |
1334 | vector unsigned char valigner = VEC_ALIGNER(srcp); |
1335 | vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp); |
1336 | width -= extrawidth; |
1337 | while (width) { |
1338 | vector unsigned char voverflow; |
1339 | vector unsigned char vd; |
1340 | |
1341 | /* s = *srcp */ |
1342 | voverflow = (vector unsigned char)vec_ld(15, srcp); |
1343 | vs = vec_perm(vs, voverflow, valigner); |
1344 | vs = vec_perm(vs, valpha, vsrcPermute); |
1345 | |
1346 | /* d = *dstp */ |
1347 | vd = (vector unsigned char)vec_ld(0, dstp); |
1348 | vd = vec_perm(vd, vd, vsdstPermute); |
1349 | |
1350 | VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
1351 | |
1352 | /* set the alpha channel to full on */ |
1353 | vd = vec_or(vd, valphamask); |
1354 | vd = vec_perm(vd, vbits, vdstPermute); |
1355 | |
1356 | /* *dstp = res */ |
1357 | vec_st((vector unsigned int)vd, 0, dstp); |
1358 | |
1359 | srcp += 4; |
1360 | dstp += 4; |
1361 | width -= 4; |
1362 | vs = voverflow; |
1363 | } |
1364 | ONE_PIXEL_BLEND((extrawidth), extrawidth); |
1365 | } |
1366 | #undef ONE_PIXEL_BLEND |
1367 | |
1368 | srcp += srcskip; |
1369 | dstp += dstskip; |
1370 | } |
1371 | |
1372 | } |
1373 | |
1374 | |
1375 | /* fast RGB888->(A)RGB888 blending */ |
1376 | static void BlitRGBtoRGBSurfaceAlphaAltivec(SDL_BlitInfo *info) |
1377 | { |
1378 | unsigned alpha = info->src->alpha; |
1379 | int height = info->d_height; |
1380 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
1381 | int srcskip = info->s_skip >> 2; |
1382 | Uint32 *dstp = (Uint32 *)info->d_pixels; |
1383 | int dstskip = info->d_skip >> 2; |
1384 | vector unsigned char mergePermute; |
1385 | vector unsigned char valpha; |
1386 | vector unsigned char valphamask; |
1387 | vector unsigned short v1; |
1388 | vector unsigned short v8; |
1389 | |
1390 | mergePermute = VEC_MERGE_PERMUTE(); |
1391 | v1 = vec_splat_u16(1); |
1392 | v8 = vec_splat_u16(8); |
1393 | |
1394 | /* set the alpha to 255 on the destination surf */ |
1395 | valphamask = VEC_ALPHA_MASK(); |
1396 | |
1397 | /* set a vector full of alpha and 255-alpha */ |
1398 | ((unsigned char *)&valpha)[0] = alpha; |
1399 | valpha = vec_splat(valpha, 0); |
1400 | |
1401 | while(height--) { |
1402 | int width = info->d_width; |
1403 | #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \ |
1404 | Uint32 s = *srcp; \ |
1405 | Uint32 d = *dstp; \ |
1406 | Uint32 s1 = s & 0xff00ff; \ |
1407 | Uint32 d1 = d & 0xff00ff; \ |
1408 | d1 = (d1 + ((s1 - d1) * alpha >> 8)) \ |
1409 | & 0xff00ff; \ |
1410 | s &= 0xff00; \ |
1411 | d &= 0xff00; \ |
1412 | d = (d + ((s - d) * alpha >> 8)) & 0xff00; \ |
1413 | *dstp = d1 | d | 0xff000000; \ |
1414 | ++srcp; \ |
1415 | ++dstp; \ |
1416 | widthvar--; \ |
1417 | } |
1418 | ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
1419 | if (width > 0) { |
1420 | int extrawidth = (width % 4); |
1421 | vector unsigned char valigner = VEC_ALIGNER(srcp); |
1422 | vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp); |
1423 | width -= extrawidth; |
1424 | while (width) { |
1425 | vector unsigned char voverflow; |
1426 | vector unsigned char vd; |
1427 | |
1428 | /* s = *srcp */ |
1429 | voverflow = (vector unsigned char)vec_ld(15, srcp); |
1430 | vs = vec_perm(vs, voverflow, valigner); |
1431 | |
1432 | /* d = *dstp */ |
1433 | vd = (vector unsigned char)vec_ld(0, dstp); |
1434 | |
1435 | VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
1436 | |
1437 | /* set the alpha channel to full on */ |
1438 | vd = vec_or(vd, valphamask); |
1439 | |
1440 | /* *dstp = res */ |
1441 | vec_st((vector unsigned int)vd, 0, dstp); |
1442 | |
1443 | srcp += 4; |
1444 | dstp += 4; |
1445 | width -= 4; |
1446 | vs = voverflow; |
1447 | } |
1448 | ONE_PIXEL_BLEND((extrawidth), extrawidth); |
1449 | } |
1450 | #undef ONE_PIXEL_BLEND |
1451 | |
1452 | srcp += srcskip; |
1453 | dstp += dstskip; |
1454 | } |
1455 | } |
1456 | #if __MWERKS__ |
1457 | #pragma altivec_model off |
1458 | #endif |
1459 | #endif /* SDL_ALTIVEC_BLITTERS */ |
1460 | |
1461 | /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */ |
1462 | static void BlitRGBtoRGBSurfaceAlpha128(SDL_BlitInfo *info) |
1463 | { |
1464 | int width = info->d_width; |
1465 | int height = info->d_height; |
1466 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
1467 | int srcskip = info->s_skip >> 2; |
1468 | Uint32 *dstp = (Uint32 *)info->d_pixels; |
1469 | int dstskip = info->d_skip >> 2; |
1470 | |
1471 | while(height--) { |
1472 | DUFFS_LOOP4({ |
1473 | Uint32 s = *srcp++; |
1474 | Uint32 d = *dstp; |
1475 | *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1) |
1476 | + (s & d & 0x00010101)) | 0xff000000; |
1477 | }, width); |
1478 | srcp += srcskip; |
1479 | dstp += dstskip; |
1480 | } |
1481 | } |
1482 | |
1483 | /* fast RGB888->(A)RGB888 blending with surface alpha */ |
1484 | static void BlitRGBtoRGBSurfaceAlpha(SDL_BlitInfo *info) |
1485 | { |
1486 | unsigned alpha = info->src->alpha; |
1487 | if(alpha == 128) { |
1488 | BlitRGBtoRGBSurfaceAlpha128(info); |
1489 | } else { |
1490 | int width = info->d_width; |
1491 | int height = info->d_height; |
1492 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
1493 | int srcskip = info->s_skip >> 2; |
1494 | Uint32 *dstp = (Uint32 *)info->d_pixels; |
1495 | int dstskip = info->d_skip >> 2; |
1496 | Uint32 s; |
1497 | Uint32 d; |
1498 | Uint32 s1; |
1499 | Uint32 d1; |
1500 | |
1501 | while(height--) { |
1502 | DUFFS_LOOP_DOUBLE2({ |
1503 | /* One Pixel Blend */ |
1504 | s = *srcp; |
1505 | d = *dstp; |
1506 | s1 = s & 0xff00ff; |
1507 | d1 = d & 0xff00ff; |
1508 | d1 = (d1 + ((s1 - d1) * alpha >> 8)) |
1509 | & 0xff00ff; |
1510 | s &= 0xff00; |
1511 | d &= 0xff00; |
1512 | d = (d + ((s - d) * alpha >> 8)) & 0xff00; |
1513 | *dstp = d1 | d | 0xff000000; |
1514 | ++srcp; |
1515 | ++dstp; |
1516 | },{ |
1517 | /* Two Pixels Blend */ |
1518 | s = *srcp; |
1519 | d = *dstp; |
1520 | s1 = s & 0xff00ff; |
1521 | d1 = d & 0xff00ff; |
1522 | d1 += (s1 - d1) * alpha >> 8; |
1523 | d1 &= 0xff00ff; |
1524 | |
1525 | s = ((s & 0xff00) >> 8) | |
1526 | ((srcp[1] & 0xff00) << 8); |
1527 | d = ((d & 0xff00) >> 8) | |
1528 | ((dstp[1] & 0xff00) << 8); |
1529 | d += (s - d) * alpha >> 8; |
1530 | d &= 0x00ff00ff; |
1531 | |
1532 | *dstp++ = d1 | ((d << 8) & 0xff00) | 0xff000000; |
1533 | ++srcp; |
1534 | |
1535 | s1 = *srcp; |
1536 | d1 = *dstp; |
1537 | s1 &= 0xff00ff; |
1538 | d1 &= 0xff00ff; |
1539 | d1 += (s1 - d1) * alpha >> 8; |
1540 | d1 &= 0xff00ff; |
1541 | |
1542 | *dstp = d1 | ((d >> 8) & 0xff00) | 0xff000000; |
1543 | ++srcp; |
1544 | ++dstp; |
1545 | }, width); |
1546 | srcp += srcskip; |
1547 | dstp += dstskip; |
1548 | } |
1549 | } |
1550 | } |
1551 | |
1552 | /* fast ARGB888->(A)RGB888 blending with pixel alpha */ |
1553 | static void BlitRGBtoRGBPixelAlpha(SDL_BlitInfo *info) |
1554 | { |
1555 | int width = info->d_width; |
1556 | int height = info->d_height; |
1557 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
1558 | int srcskip = info->s_skip >> 2; |
1559 | Uint32 *dstp = (Uint32 *)info->d_pixels; |
1560 | int dstskip = info->d_skip >> 2; |
1561 | |
1562 | while(height--) { |
1563 | DUFFS_LOOP4({ |
1564 | Uint32 dalpha; |
1565 | Uint32 d; |
1566 | Uint32 s1; |
1567 | Uint32 d1; |
1568 | Uint32 s = *srcp; |
1569 | Uint32 alpha = s >> 24; |
1570 | /* FIXME: Here we special-case opaque alpha since the |
1571 | compositioning used (>>8 instead of /255) doesn't handle |
1572 | it correctly. Also special-case alpha=0 for speed? |
1573 | Benchmark this! */ |
1574 | if(alpha) { |
1575 | if(alpha == SDL_ALPHA_OPAQUE) { |
1576 | *dstp = (s & 0x00ffffff) | (*dstp & 0xff000000); |
1577 | } else { |
1578 | /* |
1579 | * take out the middle component (green), and process |
1580 | * the other two in parallel. One multiply less. |
1581 | */ |
1582 | d = *dstp; |
1583 | dalpha = d & 0xff000000; |
1584 | s1 = s & 0xff00ff; |
1585 | d1 = d & 0xff00ff; |
1586 | d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff; |
1587 | s &= 0xff00; |
1588 | d &= 0xff00; |
1589 | d = (d + ((s - d) * alpha >> 8)) & 0xff00; |
1590 | *dstp = d1 | d | dalpha; |
1591 | } |
1592 | } |
1593 | ++srcp; |
1594 | ++dstp; |
1595 | }, width); |
1596 | srcp += srcskip; |
1597 | dstp += dstskip; |
1598 | } |
1599 | } |
1600 | |
1601 | #if GCC_ASMBLIT |
1602 | /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */ |
1603 | static void BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo *info) |
1604 | { |
1605 | int width = info->d_width; |
1606 | int height = info->d_height; |
1607 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
1608 | int srcskip = info->s_skip >> 2; |
1609 | Uint32 *dstp = (Uint32 *)info->d_pixels; |
1610 | int dstskip = info->d_skip >> 2; |
1611 | SDL_PixelFormat* sf = info->src; |
1612 | Uint32 amask = sf->Amask; |
1613 | |
1614 | __asm__ ( |
1615 | /* make mm6 all zeros. */ |
1616 | "pxor %%mm6, %%mm6\n" |
1617 | |
1618 | /* Make a mask to preserve the alpha. */ |
1619 | "movd %0, %%mm7\n\t" /* 0000F000 -> mm7 */ |
1620 | "punpcklbw %%mm7, %%mm7\n\t" /* FF000000 -> mm7 */ |
1621 | "pcmpeqb %%mm4, %%mm4\n\t" /* FFFFFFFF -> mm4 */ |
1622 | "movq %%mm4, %%mm3\n\t" /* FFFFFFFF -> mm3 (for later) */ |
1623 | "pxor %%mm4, %%mm7\n\t" /* 00FFFFFF -> mm7 (mult mask) */ |
1624 | |
1625 | /* form channel masks */ |
1626 | "movq %%mm7, %%mm4\n\t" /* 00FFFFFF -> mm4 */ |
1627 | "packsswb %%mm6, %%mm4\n\t" /* 00000FFF -> mm4 (channel mask) */ |
1628 | "packsswb %%mm6, %%mm3\n\t" /* 0000FFFF -> mm3 */ |
1629 | "pxor %%mm4, %%mm3\n\t" /* 0000F000 -> mm3 (~channel mask) */ |
1630 | |
1631 | /* get alpha channel shift */ |
1632 | "movd %1, %%mm5\n\t" /* Ashift -> mm5 */ |
1633 | |
1634 | : /* nothing */ : "rm" (amask), "rm" ((Uint32) sf->Ashift) ); |
1635 | |
1636 | while(height--) { |
1637 | |
1638 | DUFFS_LOOP4({ |
1639 | Uint32 alpha; |
1640 | |
1641 | __asm__ ( |
1642 | "prefetch 64(%0)\n" |
1643 | "prefetch 64(%1)\n" |
1644 | : : "r" (srcp), "r" (dstp) ); |
1645 | |
1646 | alpha = *srcp & amask; |
1647 | /* FIXME: Here we special-case opaque alpha since the |
1648 | compositioning used (>>8 instead of /255) doesn't handle |
1649 | it correctly. Also special-case alpha=0 for speed? |
1650 | Benchmark this! */ |
1651 | if(alpha == 0) { |
1652 | /* do nothing */ |
1653 | } |
1654 | else if(alpha == amask) { |
1655 | /* opaque alpha -- copy RGB, keep dst alpha */ |
1656 | /* using MMX here to free up regular registers for other things */ |
1657 | __asm__ ( |
1658 | "movd (%0), %%mm0\n\t" /* src(ARGB) -> mm0 (0000ARGB)*/ |
1659 | "movd (%1), %%mm1\n\t" /* dst(ARGB) -> mm1 (0000ARGB)*/ |
1660 | "pand %%mm4, %%mm0\n\t" /* src & chanmask -> mm0 */ |
1661 | "pand %%mm3, %%mm1\n\t" /* dst & ~chanmask -> mm2 */ |
1662 | "por %%mm0, %%mm1\n\t" /* src | dst -> mm1 */ |
1663 | "movd %%mm1, (%1) \n\t" /* mm1 -> dst */ |
1664 | |
1665 | : : "r" (srcp), "r" (dstp) ); |
1666 | } |
1667 | |
1668 | else { |
1669 | __asm__ ( |
1670 | /* load in the source, and dst. */ |
1671 | "movd (%0), %%mm0\n" /* mm0(s) = 0 0 0 0 | As Rs Gs Bs */ |
1672 | "movd (%1), %%mm1\n" /* mm1(d) = 0 0 0 0 | Ad Rd Gd Bd */ |
1673 | |
1674 | /* Move the src alpha into mm2 */ |
1675 | |
1676 | /* if supporting pshufw */ |
1677 | /*"pshufw $0x55, %%mm0, %%mm2\n" */ /* mm2 = 0 As 0 As | 0 As 0 As */ |
1678 | /*"psrlw $8, %%mm2\n" */ |
1679 | |
1680 | /* else: */ |
1681 | "movd %2, %%mm2\n" |
1682 | "psrld %%mm5, %%mm2\n" /* mm2 = 0 0 0 0 | 0 0 0 As */ |
1683 | "punpcklwd %%mm2, %%mm2\n" /* mm2 = 0 0 0 0 | 0 As 0 As */ |
1684 | "punpckldq %%mm2, %%mm2\n" /* mm2 = 0 As 0 As | 0 As 0 As */ |
1685 | "pand %%mm7, %%mm2\n" /* to preserve dest alpha */ |
1686 | |
1687 | /* move the colors into words. */ |
1688 | "punpcklbw %%mm6, %%mm0\n" /* mm0 = 0 As 0 Rs | 0 Gs 0 Bs */ |
1689 | "punpcklbw %%mm6, %%mm1\n" /* mm0 = 0 Ad 0 Rd | 0 Gd 0 Bd */ |
1690 | |
1691 | /* src - dst */ |
1692 | "psubw %%mm1, %%mm0\n" /* mm0 = As-Ad Rs-Rd | Gs-Gd Bs-Bd */ |
1693 | |
1694 | /* A * (src-dst) */ |
1695 | "pmullw %%mm2, %%mm0\n" /* mm0 = 0*As-d As*Rs-d | As*Gs-d As*Bs-d */ |
1696 | "psrlw $8, %%mm0\n" /* mm0 = 0>>8 Rc>>8 | Gc>>8 Bc>>8 */ |
1697 | "paddb %%mm1, %%mm0\n" /* mm0 = 0+Ad Rc+Rd | Gc+Gd Bc+Bd */ |
1698 | |
1699 | "packuswb %%mm0, %%mm0\n" /* mm0 = | Ac Rc Gc Bc */ |
1700 | |
1701 | "movd %%mm0, (%1)\n" /* result in mm0 */ |
1702 | |
1703 | : : "r" (srcp), "r" (dstp), "r" (alpha) ); |
1704 | |
1705 | } |
1706 | ++srcp; |
1707 | ++dstp; |
1708 | }, width); |
1709 | srcp += srcskip; |
1710 | dstp += dstskip; |
1711 | } |
1712 | |
1713 | __asm__ ( |
1714 | "emms\n" |
1715 | : ); |
1716 | } |
1717 | /* End GCC_ASMBLIT*/ |
1718 | |
1719 | #elif MSVC_ASMBLIT |
1720 | /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */ |
1721 | static void BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo *info) |
1722 | { |
1723 | int width = info->d_width; |
1724 | int height = info->d_height; |
1725 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
1726 | int srcskip = info->s_skip >> 2; |
1727 | Uint32 *dstp = (Uint32 *)info->d_pixels; |
1728 | int dstskip = info->d_skip >> 2; |
1729 | SDL_PixelFormat* sf = info->src; |
1730 | Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask; |
1731 | Uint32 amask = sf->Amask; |
1732 | Uint32 ashift = sf->Ashift; |
1733 | Uint64 multmask; |
1734 | |
1735 | __m64 src1, dst1, mm_alpha, mm_zero, dmask; |
1736 | |
1737 | mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ |
1738 | multmask = ~(0xFFFFi64 << (ashift * 2)); |
1739 | dmask = *(__m64*) &multmask; /* dst alpha mask -> dmask */ |
1740 | |
1741 | while(height--) { |
1742 | DUFFS_LOOP4({ |
1743 | Uint32 alpha; |
1744 | |
1745 | _m_prefetch(srcp + 16); |
1746 | _m_prefetch(dstp + 16); |
1747 | |
1748 | alpha = *srcp & amask; |
1749 | if (alpha == 0) { |
1750 | /* do nothing */ |
1751 | } else if (alpha == amask) { |
1752 | /* copy RGB, keep dst alpha */ |
1753 | *dstp = (*srcp & chanmask) | (*dstp & ~chanmask); |
1754 | } else { |
1755 | src1 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src1 (0000ARGB)*/ |
1756 | src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */ |
1757 | |
1758 | dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/ |
1759 | dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */ |
1760 | |
1761 | mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */ |
1762 | mm_alpha = _mm_srli_si64(mm_alpha, ashift); /* mm_alpha >> ashift -> mm_alpha(0000000A) */ |
1763 | mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ |
1764 | mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ |
1765 | mm_alpha = _mm_and_si64(mm_alpha, dmask); /* 000A0A0A -> mm_alpha, preserve dst alpha on add */ |
1766 | |
1767 | /* blend */ |
1768 | src1 = _mm_sub_pi16(src1, dst1);/* src - dst -> src1 */ |
1769 | src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src - dst) * alpha -> src1 */ |
1770 | src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */ |
1771 | dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst) -> dst1(0A0R0G0B) */ |
1772 | dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */ |
1773 | |
1774 | *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */ |
1775 | } |
1776 | ++srcp; |
1777 | ++dstp; |
1778 | }, width); |
1779 | srcp += srcskip; |
1780 | dstp += dstskip; |
1781 | } |
1782 | _mm_empty(); |
1783 | } |
1784 | /* End MSVC_ASMBLIT */ |
1785 | |
1786 | #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */ |
1787 | |
1788 | /* 16bpp special case for per-surface alpha=50%: blend 2 pixels in parallel */ |
1789 | |
1790 | /* blend a single 16 bit pixel at 50% */ |
1791 | #define BLEND16_50(d, s, mask) \ |
1792 | ((((s & mask) + (d & mask)) >> 1) + (s & d & (~mask & 0xffff))) |
1793 | |
1794 | /* blend two 16 bit pixels at 50% */ |
1795 | #define BLEND2x16_50(d, s, mask) \ |
1796 | (((s & (mask | mask << 16)) >> 1) + ((d & (mask | mask << 16)) >> 1) \ |
1797 | + (s & d & (~(mask | mask << 16)))) |
1798 | |
1799 | static void Blit16to16SurfaceAlpha128(SDL_BlitInfo *info, Uint16 mask) |
1800 | { |
1801 | int width = info->d_width; |
1802 | int height = info->d_height; |
1803 | Uint16 *srcp = (Uint16 *)info->s_pixels; |
1804 | int srcskip = info->s_skip >> 1; |
1805 | Uint16 *dstp = (Uint16 *)info->d_pixels; |
1806 | int dstskip = info->d_skip >> 1; |
1807 | |
1808 | while(height--) { |
1809 | if(((uintptr_t)srcp ^ (uintptr_t)dstp) & 2) { |
1810 | /* |
1811 | * Source and destination not aligned, pipeline it. |
1812 | * This is mostly a win for big blits but no loss for |
1813 | * small ones |
1814 | */ |
1815 | Uint32 prev_sw; |
1816 | int w = width; |
1817 | |
1818 | /* handle odd destination */ |
1819 | if((uintptr_t)dstp & 2) { |
1820 | Uint16 d = *dstp, s = *srcp; |
1821 | *dstp = BLEND16_50(d, s, mask); |
1822 | dstp++; |
1823 | srcp++; |
1824 | w--; |
1825 | } |
1826 | srcp++; /* srcp is now 32-bit aligned */ |
1827 | |
1828 | /* bootstrap pipeline with first halfword */ |
1829 | prev_sw = ((Uint32 *)srcp)[-1]; |
1830 | |
1831 | while(w > 1) { |
1832 | Uint32 sw, dw, s; |
1833 | sw = *(Uint32 *)srcp; |
1834 | dw = *(Uint32 *)dstp; |
1835 | #if SDL_BYTEORDER == SDL_BIG_ENDIAN |
1836 | s = (prev_sw << 16) + (sw >> 16); |
1837 | #else |
1838 | s = (prev_sw >> 16) + (sw << 16); |
1839 | #endif |
1840 | prev_sw = sw; |
1841 | *(Uint32 *)dstp = BLEND2x16_50(dw, s, mask); |
1842 | dstp += 2; |
1843 | srcp += 2; |
1844 | w -= 2; |
1845 | } |
1846 | |
1847 | /* final pixel if any */ |
1848 | if(w) { |
1849 | Uint16 d = *dstp, s; |
1850 | #if SDL_BYTEORDER == SDL_BIG_ENDIAN |
1851 | s = (Uint16)prev_sw; |
1852 | #else |
1853 | s = (Uint16)(prev_sw >> 16); |
1854 | #endif |
1855 | *dstp = BLEND16_50(d, s, mask); |
1856 | srcp++; |
1857 | dstp++; |
1858 | } |
1859 | srcp += srcskip - 1; |
1860 | dstp += dstskip; |
1861 | } else { |
1862 | /* source and destination are aligned */ |
1863 | int w = width; |
1864 | |
1865 | /* first odd pixel? */ |
1866 | if((uintptr_t)srcp & 2) { |
1867 | Uint16 d = *dstp, s = *srcp; |
1868 | *dstp = BLEND16_50(d, s, mask); |
1869 | srcp++; |
1870 | dstp++; |
1871 | w--; |
1872 | } |
1873 | /* srcp and dstp are now 32-bit aligned */ |
1874 | |
1875 | while(w > 1) { |
1876 | Uint32 sw = *(Uint32 *)srcp; |
1877 | Uint32 dw = *(Uint32 *)dstp; |
1878 | *(Uint32 *)dstp = BLEND2x16_50(dw, sw, mask); |
1879 | srcp += 2; |
1880 | dstp += 2; |
1881 | w -= 2; |
1882 | } |
1883 | |
1884 | /* last odd pixel? */ |
1885 | if(w) { |
1886 | Uint16 d = *dstp, s = *srcp; |
1887 | *dstp = BLEND16_50(d, s, mask); |
1888 | srcp++; |
1889 | dstp++; |
1890 | } |
1891 | srcp += srcskip; |
1892 | dstp += dstskip; |
1893 | } |
1894 | } |
1895 | } |
1896 | |
1897 | #if GCC_ASMBLIT |
1898 | /* fast RGB565->RGB565 blending with surface alpha */ |
1899 | static void Blit565to565SurfaceAlphaMMX(SDL_BlitInfo *info) |
1900 | { |
1901 | unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ |
1902 | if(alpha == 128) { |
1903 | Blit16to16SurfaceAlpha128(info, 0xf7de); |
1904 | } else { |
1905 | int width = info->d_width; |
1906 | int height = info->d_height; |
1907 | Uint16 *srcp = (Uint16 *)info->s_pixels; |
1908 | int srcskip = info->s_skip >> 1; |
1909 | Uint16 *dstp = (Uint16 *)info->d_pixels; |
1910 | int dstskip = info->d_skip >> 1; |
1911 | Uint32 s, d; |
1912 | Uint64 load; |
1913 | |
1914 | alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ |
1915 | load = alpha; |
1916 | alpha >>= 3; /* downscale alpha to 5 bits */ |
1917 | |
1918 | movq_m2r(load, mm0); /* alpha(0000000A) -> mm0 */ |
1919 | punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */ |
1920 | punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */ |
1921 | /* position alpha to allow for mullo and mulhi on diff channels |
1922 | to reduce the number of operations */ |
1923 | psllq_i2r(3, mm0); |
1924 | |
1925 | /* Setup the 565 color channel masks */ |
1926 | load = 0x07E007E007E007E0ULL; |
1927 | movq_m2r(load, mm4); /* MASKGREEN -> mm4 */ |
1928 | load = 0x001F001F001F001FULL; |
1929 | movq_m2r(load, mm7); /* MASKBLUE -> mm7 */ |
1930 | while(height--) { |
1931 | DUFFS_LOOP_QUATRO2( |
1932 | { |
1933 | s = *srcp++; |
1934 | d = *dstp; |
1935 | /* |
1936 | * shift out the middle component (green) to |
1937 | * the high 16 bits, and process all three RGB |
1938 | * components at the same time. |
1939 | */ |
1940 | s = (s | s << 16) & 0x07e0f81f; |
1941 | d = (d | d << 16) & 0x07e0f81f; |
1942 | d += (s - d) * alpha >> 5; |
1943 | d &= 0x07e0f81f; |
1944 | *dstp++ = d | d >> 16; |
1945 | },{ |
1946 | s = *srcp++; |
1947 | d = *dstp; |
1948 | /* |
1949 | * shift out the middle component (green) to |
1950 | * the high 16 bits, and process all three RGB |
1951 | * components at the same time. |
1952 | */ |
1953 | s = (s | s << 16) & 0x07e0f81f; |
1954 | d = (d | d << 16) & 0x07e0f81f; |
1955 | d += (s - d) * alpha >> 5; |
1956 | d &= 0x07e0f81f; |
1957 | *dstp++ = d | d >> 16; |
1958 | s = *srcp++; |
1959 | d = *dstp; |
1960 | /* |
1961 | * shift out the middle component (green) to |
1962 | * the high 16 bits, and process all three RGB |
1963 | * components at the same time. |
1964 | */ |
1965 | s = (s | s << 16) & 0x07e0f81f; |
1966 | d = (d | d << 16) & 0x07e0f81f; |
1967 | d += (s - d) * alpha >> 5; |
1968 | d &= 0x07e0f81f; |
1969 | *dstp++ = d | d >> 16; |
1970 | },{ |
1971 | movq_m2r((*srcp), mm2);/* 4 src pixels -> mm2 */ |
1972 | movq_m2r((*dstp), mm3);/* 4 dst pixels -> mm3 */ |
1973 | |
1974 | /* red -- does not need a mask since the right shift clears |
1975 | the uninteresting bits */ |
1976 | movq_r2r(mm2, mm5); /* src -> mm5 */ |
1977 | movq_r2r(mm3, mm6); /* dst -> mm6 */ |
1978 | psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 [000r 000r 000r 000r] */ |
1979 | psrlw_i2r(11, mm6); /* mm6 >> 11 -> mm6 [000r 000r 000r 000r] */ |
1980 | |
1981 | /* blend */ |
1982 | psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ |
1983 | pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ |
1984 | /* alpha used is actually 11 bits |
1985 | 11 + 5 = 16 bits, so the sign bits are lost */ |
1986 | psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */ |
1987 | paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ |
1988 | psllw_i2r(11, mm6); /* mm6 << 11 -> mm6 */ |
1989 | |
1990 | movq_r2r(mm6, mm1); /* save new reds in dsts */ |
1991 | |
1992 | /* green -- process the bits in place */ |
1993 | movq_r2r(mm2, mm5); /* src -> mm5 */ |
1994 | movq_r2r(mm3, mm6); /* dst -> mm6 */ |
1995 | pand_r2r(mm4, mm5); /* src & MASKGREEN -> mm5 */ |
1996 | pand_r2r(mm4, mm6); /* dst & MASKGREEN -> mm6 */ |
1997 | |
1998 | /* blend */ |
1999 | psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ |
2000 | pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ |
2001 | /* 11 + 11 - 16 = 6 bits, so all the lower uninteresting |
2002 | bits are gone and the sign bits present */ |
2003 | psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */ |
2004 | paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ |
2005 | |
2006 | por_r2r(mm6, mm1); /* save new greens in dsts */ |
2007 | |
2008 | /* blue */ |
2009 | movq_r2r(mm2, mm5); /* src -> mm5 */ |
2010 | movq_r2r(mm3, mm6); /* dst -> mm6 */ |
2011 | pand_r2r(mm7, mm5); /* src & MASKBLUE -> mm5[000b 000b 000b 000b] */ |
2012 | pand_r2r(mm7, mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */ |
2013 | |
2014 | /* blend */ |
2015 | psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ |
2016 | pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ |
2017 | /* 11 + 5 = 16 bits, so the sign bits are lost and |
2018 | the interesting bits will need to be MASKed */ |
2019 | psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */ |
2020 | paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ |
2021 | pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6[000b 000b 000b 000b] */ |
2022 | |
2023 | por_r2r(mm6, mm1); /* save new blues in dsts */ |
2024 | |
2025 | movq_r2m(mm1, *dstp); /* mm1 -> 4 dst pixels */ |
2026 | |
2027 | srcp += 4; |
2028 | dstp += 4; |
2029 | }, width); |
2030 | srcp += srcskip; |
2031 | dstp += dstskip; |
2032 | } |
2033 | emms(); |
2034 | } |
2035 | } |
2036 | |
2037 | /* fast RGB555->RGB555 blending with surface alpha */ |
2038 | static void Blit555to555SurfaceAlphaMMX(SDL_BlitInfo *info) |
2039 | { |
2040 | unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ |
2041 | if(alpha == 128) { |
2042 | Blit16to16SurfaceAlpha128(info, 0xfbde); |
2043 | } else { |
2044 | int width = info->d_width; |
2045 | int height = info->d_height; |
2046 | Uint16 *srcp = (Uint16 *)info->s_pixels; |
2047 | int srcskip = info->s_skip >> 1; |
2048 | Uint16 *dstp = (Uint16 *)info->d_pixels; |
2049 | int dstskip = info->d_skip >> 1; |
2050 | Uint32 s, d; |
2051 | Uint64 load; |
2052 | |
2053 | alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ |
2054 | load = alpha; |
2055 | alpha >>= 3; /* downscale alpha to 5 bits */ |
2056 | |
2057 | movq_m2r(load, mm0); /* alpha(0000000A) -> mm0 */ |
2058 | punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */ |
2059 | punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */ |
2060 | /* position alpha to allow for mullo and mulhi on diff channels |
2061 | to reduce the number of operations */ |
2062 | psllq_i2r(3, mm0); |
2063 | |
2064 | /* Setup the 555 color channel masks */ |
2065 | load = 0x03E003E003E003E0ULL; |
2066 | movq_m2r(load, mm4); /* MASKGREEN -> mm4 */ |
2067 | load = 0x001F001F001F001FULL; |
2068 | movq_m2r(load, mm7); /* MASKBLUE -> mm7 */ |
2069 | while(height--) { |
2070 | DUFFS_LOOP_QUATRO2( |
2071 | { |
2072 | s = *srcp++; |
2073 | d = *dstp; |
2074 | /* |
2075 | * shift out the middle component (green) to |
2076 | * the high 16 bits, and process all three RGB |
2077 | * components at the same time. |
2078 | */ |
2079 | s = (s | s << 16) & 0x03e07c1f; |
2080 | d = (d | d << 16) & 0x03e07c1f; |
2081 | d += (s - d) * alpha >> 5; |
2082 | d &= 0x03e07c1f; |
2083 | *dstp++ = d | d >> 16; |
2084 | },{ |
2085 | s = *srcp++; |
2086 | d = *dstp; |
2087 | /* |
2088 | * shift out the middle component (green) to |
2089 | * the high 16 bits, and process all three RGB |
2090 | * components at the same time. |
2091 | */ |
2092 | s = (s | s << 16) & 0x03e07c1f; |
2093 | d = (d | d << 16) & 0x03e07c1f; |
2094 | d += (s - d) * alpha >> 5; |
2095 | d &= 0x03e07c1f; |
2096 | *dstp++ = d | d >> 16; |
2097 | s = *srcp++; |
2098 | d = *dstp; |
2099 | /* |
2100 | * shift out the middle component (green) to |
2101 | * the high 16 bits, and process all three RGB |
2102 | * components at the same time. |
2103 | */ |
2104 | s = (s | s << 16) & 0x03e07c1f; |
2105 | d = (d | d << 16) & 0x03e07c1f; |
2106 | d += (s - d) * alpha >> 5; |
2107 | d &= 0x03e07c1f; |
2108 | *dstp++ = d | d >> 16; |
2109 | },{ |
2110 | movq_m2r((*srcp), mm2);/* 4 src pixels -> mm2 */ |
2111 | movq_m2r((*dstp), mm3);/* 4 dst pixels -> mm3 */ |
2112 | |
2113 | /* red -- process the bits in place */ |
2114 | psllq_i2r(5, mm4); /* turn MASKGREEN into MASKRED */ |
2115 | /* by reusing the GREEN mask we free up another mmx |
2116 | register to accumulate the result */ |
2117 | |
2118 | movq_r2r(mm2, mm5); /* src -> mm5 */ |
2119 | movq_r2r(mm3, mm6); /* dst -> mm6 */ |
2120 | pand_r2r(mm4, mm5); /* src & MASKRED -> mm5 */ |
2121 | pand_r2r(mm4, mm6); /* dst & MASKRED -> mm6 */ |
2122 | |
2123 | /* blend */ |
2124 | psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ |
2125 | pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ |
2126 | /* 11 + 15 - 16 = 10 bits, uninteresting bits will be |
2127 | cleared by a MASK below */ |
2128 | psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */ |
2129 | paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ |
2130 | pand_r2r(mm4, mm6); /* mm6 & MASKRED -> mm6 */ |
2131 | |
2132 | psrlq_i2r(5, mm4); /* turn MASKRED back into MASKGREEN */ |
2133 | |
2134 | movq_r2r(mm6, mm1); /* save new reds in dsts */ |
2135 | |
2136 | /* green -- process the bits in place */ |
2137 | movq_r2r(mm2, mm5); /* src -> mm5 */ |
2138 | movq_r2r(mm3, mm6); /* dst -> mm6 */ |
2139 | pand_r2r(mm4, mm5); /* src & MASKGREEN -> mm5 */ |
2140 | pand_r2r(mm4, mm6); /* dst & MASKGREEN -> mm6 */ |
2141 | |
2142 | /* blend */ |
2143 | psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ |
2144 | pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ |
2145 | /* 11 + 10 - 16 = 5 bits, so all the lower uninteresting |
2146 | bits are gone and the sign bits present */ |
2147 | psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */ |
2148 | paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ |
2149 | |
2150 | por_r2r(mm6, mm1); /* save new greens in dsts */ |
2151 | |
2152 | /* blue */ |
2153 | movq_r2r(mm2, mm5); /* src -> mm5 */ |
2154 | movq_r2r(mm3, mm6); /* dst -> mm6 */ |
2155 | pand_r2r(mm7, mm5); /* src & MASKBLUE -> mm5[000b 000b 000b 000b] */ |
2156 | pand_r2r(mm7, mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */ |
2157 | |
2158 | /* blend */ |
2159 | psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ |
2160 | pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ |
2161 | /* 11 + 5 = 16 bits, so the sign bits are lost and |
2162 | the interesting bits will need to be MASKed */ |
2163 | psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */ |
2164 | paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ |
2165 | pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6[000b 000b 000b 000b] */ |
2166 | |
2167 | por_r2r(mm6, mm1); /* save new blues in dsts */ |
2168 | |
2169 | movq_r2m(mm1, *dstp);/* mm1 -> 4 dst pixels */ |
2170 | |
2171 | srcp += 4; |
2172 | dstp += 4; |
2173 | }, width); |
2174 | srcp += srcskip; |
2175 | dstp += dstskip; |
2176 | } |
2177 | emms(); |
2178 | } |
2179 | } |
2180 | /* End GCC_ASMBLIT */ |
2181 | |
2182 | #elif MSVC_ASMBLIT |
2183 | /* fast RGB565->RGB565 blending with surface alpha */ |
2184 | static void Blit565to565SurfaceAlphaMMX(SDL_BlitInfo *info) |
2185 | { |
2186 | unsigned alpha = info->src->alpha; |
2187 | if(alpha == 128) { |
2188 | Blit16to16SurfaceAlpha128(info, 0xf7de); |
2189 | } else { |
2190 | int width = info->d_width; |
2191 | int height = info->d_height; |
2192 | Uint16 *srcp = (Uint16 *)info->s_pixels; |
2193 | int srcskip = info->s_skip >> 1; |
2194 | Uint16 *dstp = (Uint16 *)info->d_pixels; |
2195 | int dstskip = info->d_skip >> 1; |
2196 | Uint32 s, d; |
2197 | |
2198 | __m64 src1, dst1, src2, dst2, gmask, bmask, mm_res, mm_alpha; |
2199 | |
2200 | alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ |
2201 | mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */ |
2202 | alpha >>= 3; /* downscale alpha to 5 bits */ |
2203 | |
2204 | mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ |
2205 | mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ |
2206 | /* position alpha to allow for mullo and mulhi on diff channels |
2207 | to reduce the number of operations */ |
2208 | mm_alpha = _mm_slli_si64(mm_alpha, 3); |
2209 | |
2210 | /* Setup the 565 color channel masks */ |
2211 | gmask = _mm_set_pi32(0x07E007E0, 0x07E007E0); /* MASKGREEN -> gmask */ |
2212 | bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */ |
2213 | |
2214 | while(height--) { |
2215 | DUFFS_LOOP_QUATRO2( |
2216 | { |
2217 | s = *srcp++; |
2218 | d = *dstp; |
2219 | /* |
2220 | * shift out the middle component (green) to |
2221 | * the high 16 bits, and process all three RGB |
2222 | * components at the same time. |
2223 | */ |
2224 | s = (s | s << 16) & 0x07e0f81f; |
2225 | d = (d | d << 16) & 0x07e0f81f; |
2226 | d += (s - d) * alpha >> 5; |
2227 | d &= 0x07e0f81f; |
2228 | *dstp++ = (Uint16)(d | d >> 16); |
2229 | },{ |
2230 | s = *srcp++; |
2231 | d = *dstp; |
2232 | /* |
2233 | * shift out the middle component (green) to |
2234 | * the high 16 bits, and process all three RGB |
2235 | * components at the same time. |
2236 | */ |
2237 | s = (s | s << 16) & 0x07e0f81f; |
2238 | d = (d | d << 16) & 0x07e0f81f; |
2239 | d += (s - d) * alpha >> 5; |
2240 | d &= 0x07e0f81f; |
2241 | *dstp++ = (Uint16)(d | d >> 16); |
2242 | s = *srcp++; |
2243 | d = *dstp; |
2244 | /* |
2245 | * shift out the middle component (green) to |
2246 | * the high 16 bits, and process all three RGB |
2247 | * components at the same time. |
2248 | */ |
2249 | s = (s | s << 16) & 0x07e0f81f; |
2250 | d = (d | d << 16) & 0x07e0f81f; |
2251 | d += (s - d) * alpha >> 5; |
2252 | d &= 0x07e0f81f; |
2253 | *dstp++ = (Uint16)(d | d >> 16); |
2254 | },{ |
2255 | src1 = *(__m64*)srcp; /* 4 src pixels -> src1 */ |
2256 | dst1 = *(__m64*)dstp; /* 4 dst pixels -> dst1 */ |
2257 | |
2258 | /* red */ |
2259 | src2 = src1; |
2260 | src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 [000r 000r 000r 000r] */ |
2261 | |
2262 | dst2 = dst1; |
2263 | dst2 = _mm_srli_pi16(dst2, 11); /* dst2 >> 11 -> dst2 [000r 000r 000r 000r] */ |
2264 | |
2265 | /* blend */ |
2266 | src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ |
2267 | src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ |
2268 | src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */ |
2269 | dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ |
2270 | dst2 = _mm_slli_pi16(dst2, 11); /* dst2 << 11 -> dst2 */ |
2271 | |
2272 | mm_res = dst2; /* RED -> mm_res */ |
2273 | |
2274 | /* green -- process the bits in place */ |
2275 | src2 = src1; |
2276 | src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */ |
2277 | |
2278 | dst2 = dst1; |
2279 | dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */ |
2280 | |
2281 | /* blend */ |
2282 | src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ |
2283 | src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ |
2284 | src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */ |
2285 | dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ |
2286 | |
2287 | mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN -> mm_res */ |
2288 | |
2289 | /* blue */ |
2290 | src2 = src1; |
2291 | src2 = _mm_and_si64(src2, bmask); /* src & MASKBLUE -> src2[000b 000b 000b 000b] */ |
2292 | |
2293 | dst2 = dst1; |
2294 | dst2 = _mm_and_si64(dst2, bmask); /* dst & MASKBLUE -> dst2[000b 000b 000b 000b] */ |
2295 | |
2296 | /* blend */ |
2297 | src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ |
2298 | src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ |
2299 | src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */ |
2300 | dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ |
2301 | dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */ |
2302 | |
2303 | mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN | BLUE -> mm_res */ |
2304 | |
2305 | *(__m64*)dstp = mm_res; /* mm_res -> 4 dst pixels */ |
2306 | |
2307 | srcp += 4; |
2308 | dstp += 4; |
2309 | }, width); |
2310 | srcp += srcskip; |
2311 | dstp += dstskip; |
2312 | } |
2313 | _mm_empty(); |
2314 | } |
2315 | } |
2316 | |
2317 | /* fast RGB555->RGB555 blending with surface alpha */ |
2318 | static void Blit555to555SurfaceAlphaMMX(SDL_BlitInfo *info) |
2319 | { |
2320 | unsigned alpha = info->src->alpha; |
2321 | if(alpha == 128) { |
2322 | Blit16to16SurfaceAlpha128(info, 0xfbde); |
2323 | } else { |
2324 | int width = info->d_width; |
2325 | int height = info->d_height; |
2326 | Uint16 *srcp = (Uint16 *)info->s_pixels; |
2327 | int srcskip = info->s_skip >> 1; |
2328 | Uint16 *dstp = (Uint16 *)info->d_pixels; |
2329 | int dstskip = info->d_skip >> 1; |
2330 | Uint32 s, d; |
2331 | |
2332 | __m64 src1, dst1, src2, dst2, rmask, gmask, bmask, mm_res, mm_alpha; |
2333 | |
2334 | alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ |
2335 | mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */ |
2336 | alpha >>= 3; /* downscale alpha to 5 bits */ |
2337 | |
2338 | mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ |
2339 | mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ |
2340 | /* position alpha to allow for mullo and mulhi on diff channels |
2341 | to reduce the number of operations */ |
2342 | mm_alpha = _mm_slli_si64(mm_alpha, 3); |
2343 | |
2344 | /* Setup the 555 color channel masks */ |
2345 | rmask = _mm_set_pi32(0x7C007C00, 0x7C007C00); /* MASKRED -> rmask */ |
2346 | gmask = _mm_set_pi32(0x03E003E0, 0x03E003E0); /* MASKGREEN -> gmask */ |
2347 | bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */ |
2348 | |
2349 | while(height--) { |
2350 | DUFFS_LOOP_QUATRO2( |
2351 | { |
2352 | s = *srcp++; |
2353 | d = *dstp; |
2354 | /* |
2355 | * shift out the middle component (green) to |
2356 | * the high 16 bits, and process all three RGB |
2357 | * components at the same time. |
2358 | */ |
2359 | s = (s | s << 16) & 0x03e07c1f; |
2360 | d = (d | d << 16) & 0x03e07c1f; |
2361 | d += (s - d) * alpha >> 5; |
2362 | d &= 0x03e07c1f; |
2363 | *dstp++ = (Uint16)(d | d >> 16); |
2364 | },{ |
2365 | s = *srcp++; |
2366 | d = *dstp; |
2367 | /* |
2368 | * shift out the middle component (green) to |
2369 | * the high 16 bits, and process all three RGB |
2370 | * components at the same time. |
2371 | */ |
2372 | s = (s | s << 16) & 0x03e07c1f; |
2373 | d = (d | d << 16) & 0x03e07c1f; |
2374 | d += (s - d) * alpha >> 5; |
2375 | d &= 0x03e07c1f; |
2376 | *dstp++ = (Uint16)(d | d >> 16); |
2377 | s = *srcp++; |
2378 | d = *dstp; |
2379 | /* |
2380 | * shift out the middle component (green) to |
2381 | * the high 16 bits, and process all three RGB |
2382 | * components at the same time. |
2383 | */ |
2384 | s = (s | s << 16) & 0x03e07c1f; |
2385 | d = (d | d << 16) & 0x03e07c1f; |
2386 | d += (s - d) * alpha >> 5; |
2387 | d &= 0x03e07c1f; |
2388 | *dstp++ = (Uint16)(d | d >> 16); |
2389 | },{ |
2390 | src1 = *(__m64*)srcp; /* 4 src pixels -> src1 */ |
2391 | dst1 = *(__m64*)dstp; /* 4 dst pixels -> dst1 */ |
2392 | |
2393 | /* red -- process the bits in place */ |
2394 | src2 = src1; |
2395 | src2 = _mm_and_si64(src2, rmask); /* src & MASKRED -> src2 */ |
2396 | |
2397 | dst2 = dst1; |
2398 | dst2 = _mm_and_si64(dst2, rmask); /* dst & MASKRED -> dst2 */ |
2399 | |
2400 | /* blend */ |
2401 | src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ |
2402 | src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ |
2403 | src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */ |
2404 | dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ |
2405 | dst2 = _mm_and_si64(dst2, rmask); /* dst2 & MASKRED -> dst2 */ |
2406 | |
2407 | mm_res = dst2; /* RED -> mm_res */ |
2408 | |
2409 | /* green -- process the bits in place */ |
2410 | src2 = src1; |
2411 | src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */ |
2412 | |
2413 | dst2 = dst1; |
2414 | dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */ |
2415 | |
2416 | /* blend */ |
2417 | src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ |
2418 | src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ |
2419 | src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */ |
2420 | dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ |
2421 | |
2422 | mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN -> mm_res */ |
2423 | |
2424 | /* blue */ |
2425 | src2 = src1; /* src -> src2 */ |
2426 | src2 = _mm_and_si64(src2, bmask); /* src & MASKBLUE -> src2[000b 000b 000b 000b] */ |
2427 | |
2428 | dst2 = dst1; /* dst -> dst2 */ |
2429 | dst2 = _mm_and_si64(dst2, bmask); /* dst & MASKBLUE -> dst2[000b 000b 000b 000b] */ |
2430 | |
2431 | /* blend */ |
2432 | src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ |
2433 | src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ |
2434 | src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */ |
2435 | dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ |
2436 | dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */ |
2437 | |
2438 | mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN | BLUE -> mm_res */ |
2439 | |
2440 | *(__m64*)dstp = mm_res; /* mm_res -> 4 dst pixels */ |
2441 | |
2442 | srcp += 4; |
2443 | dstp += 4; |
2444 | }, width); |
2445 | srcp += srcskip; |
2446 | dstp += dstskip; |
2447 | } |
2448 | _mm_empty(); |
2449 | } |
2450 | } |
2451 | #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */ |
2452 | |
2453 | /* fast RGB565->RGB565 blending with surface alpha */ |
2454 | static void Blit565to565SurfaceAlpha(SDL_BlitInfo *info) |
2455 | { |
2456 | unsigned alpha = info->src->alpha; |
2457 | if(alpha == 128) { |
2458 | Blit16to16SurfaceAlpha128(info, 0xf7de); |
2459 | } else { |
2460 | int width = info->d_width; |
2461 | int height = info->d_height; |
2462 | Uint16 *srcp = (Uint16 *)info->s_pixels; |
2463 | int srcskip = info->s_skip >> 1; |
2464 | Uint16 *dstp = (Uint16 *)info->d_pixels; |
2465 | int dstskip = info->d_skip >> 1; |
2466 | alpha >>= 3; /* downscale alpha to 5 bits */ |
2467 | |
2468 | while(height--) { |
2469 | DUFFS_LOOP4({ |
2470 | Uint32 s = *srcp++; |
2471 | Uint32 d = *dstp; |
2472 | /* |
2473 | * shift out the middle component (green) to |
2474 | * the high 16 bits, and process all three RGB |
2475 | * components at the same time. |
2476 | */ |
2477 | s = (s | s << 16) & 0x07e0f81f; |
2478 | d = (d | d << 16) & 0x07e0f81f; |
2479 | d += (s - d) * alpha >> 5; |
2480 | d &= 0x07e0f81f; |
2481 | *dstp++ = (Uint16)(d | d >> 16); |
2482 | }, width); |
2483 | srcp += srcskip; |
2484 | dstp += dstskip; |
2485 | } |
2486 | } |
2487 | } |
2488 | |
2489 | /* fast RGB555->RGB555 blending with surface alpha */ |
2490 | static void Blit555to555SurfaceAlpha(SDL_BlitInfo *info) |
2491 | { |
2492 | unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ |
2493 | if(alpha == 128) { |
2494 | Blit16to16SurfaceAlpha128(info, 0xfbde); |
2495 | } else { |
2496 | int width = info->d_width; |
2497 | int height = info->d_height; |
2498 | Uint16 *srcp = (Uint16 *)info->s_pixels; |
2499 | int srcskip = info->s_skip >> 1; |
2500 | Uint16 *dstp = (Uint16 *)info->d_pixels; |
2501 | int dstskip = info->d_skip >> 1; |
2502 | alpha >>= 3; /* downscale alpha to 5 bits */ |
2503 | |
2504 | while(height--) { |
2505 | DUFFS_LOOP4({ |
2506 | Uint32 s = *srcp++; |
2507 | Uint32 d = *dstp; |
2508 | /* |
2509 | * shift out the middle component (green) to |
2510 | * the high 16 bits, and process all three RGB |
2511 | * components at the same time. |
2512 | */ |
2513 | s = (s | s << 16) & 0x03e07c1f; |
2514 | d = (d | d << 16) & 0x03e07c1f; |
2515 | d += (s - d) * alpha >> 5; |
2516 | d &= 0x03e07c1f; |
2517 | *dstp++ = (Uint16)(d | d >> 16); |
2518 | }, width); |
2519 | srcp += srcskip; |
2520 | dstp += dstskip; |
2521 | } |
2522 | } |
2523 | } |
2524 | |
2525 | /* fast ARGB8888->RGB565 blending with pixel alpha */ |
2526 | static void BlitARGBto565PixelAlpha(SDL_BlitInfo *info) |
2527 | { |
2528 | int width = info->d_width; |
2529 | int height = info->d_height; |
2530 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
2531 | int srcskip = info->s_skip >> 2; |
2532 | Uint16 *dstp = (Uint16 *)info->d_pixels; |
2533 | int dstskip = info->d_skip >> 1; |
2534 | |
2535 | while(height--) { |
2536 | DUFFS_LOOP4({ |
2537 | Uint32 s = *srcp; |
2538 | unsigned alpha = s >> 27; /* downscale alpha to 5 bits */ |
2539 | /* FIXME: Here we special-case opaque alpha since the |
2540 | compositioning used (>>8 instead of /255) doesn't handle |
2541 | it correctly. Also special-case alpha=0 for speed? |
2542 | Benchmark this! */ |
2543 | if(alpha) { |
2544 | if(alpha == (SDL_ALPHA_OPAQUE >> 3)) { |
2545 | *dstp = (Uint16)((s >> 8 & 0xf800) + (s >> 5 & 0x7e0) + (s >> 3 & 0x1f)); |
2546 | } else { |
2547 | Uint32 d = *dstp; |
2548 | /* |
2549 | * convert source and destination to G0RAB65565 |
2550 | * and blend all components at the same time |
2551 | */ |
2552 | s = ((s & 0xfc00) << 11) + (s >> 8 & 0xf800) |
2553 | + (s >> 3 & 0x1f); |
2554 | d = (d | d << 16) & 0x07e0f81f; |
2555 | d += (s - d) * alpha >> 5; |
2556 | d &= 0x07e0f81f; |
2557 | *dstp = (Uint16)(d | d >> 16); |
2558 | } |
2559 | } |
2560 | srcp++; |
2561 | dstp++; |
2562 | }, width); |
2563 | srcp += srcskip; |
2564 | dstp += dstskip; |
2565 | } |
2566 | } |
2567 | |
2568 | /* fast ARGB8888->RGB555 blending with pixel alpha */ |
2569 | static void BlitARGBto555PixelAlpha(SDL_BlitInfo *info) |
2570 | { |
2571 | int width = info->d_width; |
2572 | int height = info->d_height; |
2573 | Uint32 *srcp = (Uint32 *)info->s_pixels; |
2574 | int srcskip = info->s_skip >> 2; |
2575 | Uint16 *dstp = (Uint16 *)info->d_pixels; |
2576 | int dstskip = info->d_skip >> 1; |
2577 | |
2578 | while(height--) { |
2579 | DUFFS_LOOP4({ |
2580 | unsigned alpha; |
2581 | Uint32 s = *srcp; |
2582 | alpha = s >> 27; /* downscale alpha to 5 bits */ |
2583 | /* FIXME: Here we special-case opaque alpha since the |
2584 | compositioning used (>>8 instead of /255) doesn't handle |
2585 | it correctly. Also special-case alpha=0 for speed? |
2586 | Benchmark this! */ |
2587 | if(alpha) { |
2588 | if(alpha == (SDL_ALPHA_OPAQUE >> 3)) { |
2589 | *dstp = (Uint16)((s >> 9 & 0x7c00) + (s >> 6 & 0x3e0) + (s >> 3 & 0x1f)); |
2590 | } else { |
2591 | Uint32 d = *dstp; |
2592 | /* |
2593 | * convert source and destination to G0RAB65565 |
2594 | * and blend all components at the same time |
2595 | */ |
2596 | s = ((s & 0xf800) << 10) + (s >> 9 & 0x7c00) |
2597 | + (s >> 3 & 0x1f); |
2598 | d = (d | d << 16) & 0x03e07c1f; |
2599 | d += (s - d) * alpha >> 5; |
2600 | d &= 0x03e07c1f; |
2601 | *dstp = (Uint16)(d | d >> 16); |
2602 | } |
2603 | } |
2604 | srcp++; |
2605 | dstp++; |
2606 | }, width); |
2607 | srcp += srcskip; |
2608 | dstp += dstskip; |
2609 | } |
2610 | } |
2611 | |
2612 | /* General (slow) N->N blending with per-surface alpha */ |
2613 | static void BlitNtoNSurfaceAlpha(SDL_BlitInfo *info) |
2614 | { |
2615 | int width = info->d_width; |
2616 | int height = info->d_height; |
2617 | Uint8 *src = info->s_pixels; |
2618 | int srcskip = info->s_skip; |
2619 | Uint8 *dst = info->d_pixels; |
2620 | int dstskip = info->d_skip; |
2621 | SDL_PixelFormat *srcfmt = info->src; |
2622 | SDL_PixelFormat *dstfmt = info->dst; |
2623 | int srcbpp = srcfmt->BytesPerPixel; |
2624 | int dstbpp = dstfmt->BytesPerPixel; |
2625 | unsigned sA = srcfmt->alpha; |
2626 | unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; |
2627 | |
2628 | if(sA) { |
2629 | while ( height-- ) { |
2630 | DUFFS_LOOP4( |
2631 | { |
2632 | Uint32 Pixel; |
2633 | unsigned sR; |
2634 | unsigned sG; |
2635 | unsigned sB; |
2636 | unsigned dR; |
2637 | unsigned dG; |
2638 | unsigned dB; |
2639 | DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB); |
2640 | DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB); |
2641 | ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); |
2642 | ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA); |
2643 | src += srcbpp; |
2644 | dst += dstbpp; |
2645 | }, |
2646 | width); |
2647 | src += srcskip; |
2648 | dst += dstskip; |
2649 | } |
2650 | } |
2651 | } |
2652 | |
2653 | /* General (slow) colorkeyed N->N blending with per-surface alpha */ |
2654 | static void BlitNtoNSurfaceAlphaKey(SDL_BlitInfo *info) |
2655 | { |
2656 | int width = info->d_width; |
2657 | int height = info->d_height; |
2658 | Uint8 *src = info->s_pixels; |
2659 | int srcskip = info->s_skip; |
2660 | Uint8 *dst = info->d_pixels; |
2661 | int dstskip = info->d_skip; |
2662 | SDL_PixelFormat *srcfmt = info->src; |
2663 | SDL_PixelFormat *dstfmt = info->dst; |
2664 | Uint32 ckey = srcfmt->colorkey; |
2665 | int srcbpp = srcfmt->BytesPerPixel; |
2666 | int dstbpp = dstfmt->BytesPerPixel; |
2667 | unsigned sA = srcfmt->alpha; |
2668 | unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; |
2669 | |
211e4bff |
2670 | if (srcbpp == 2 && srcfmt->Gmask == 0x7e0 && dstbpp == 2 && dstfmt->Gmask == 0x7e0) { |
2671 | Uint16 *src16 = (Uint16 *)src; |
2672 | Uint16 *dst16 = (Uint16 *)dst; |
2673 | sA >>= 3; /* downscale alpha to 5 bits */ |
2674 | while ( height-- ) { |
2675 | DUFFS_LOOP4( |
2676 | { |
2677 | Uint32 s; |
2678 | Uint32 d; |
2679 | s = *src16; |
2680 | if(sA && s != ckey) { |
2681 | d = *dst16; |
2682 | s = (s | s << 16) & 0x07e0f81f; |
2683 | d = (d | d << 16) & 0x07e0f81f; |
2684 | d += (s - d) * sA >> 5; |
2685 | d &= 0x07e0f81f; |
2686 | *dst16 = (Uint16)(d | d >> 16); |
2687 | } |
2688 | src16++; |
2689 | dst16++; |
2690 | }, |
2691 | width); |
2692 | src16 += srcskip / 2; |
2693 | dst16 += dstskip / 2; |
2694 | } |
2695 | return; |
2696 | } |
2697 | |
e14743d1 |
2698 | while ( height-- ) { |
2699 | DUFFS_LOOP4( |
2700 | { |
2701 | Uint32 Pixel; |
2702 | unsigned sR; |
2703 | unsigned sG; |
2704 | unsigned sB; |
2705 | unsigned dR; |
2706 | unsigned dG; |
2707 | unsigned dB; |
2708 | RETRIEVE_RGB_PIXEL(src, srcbpp, Pixel); |
2709 | if(sA && Pixel != ckey) { |
2710 | RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB); |
2711 | DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB); |
2712 | ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); |
2713 | ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA); |
2714 | } |
2715 | src += srcbpp; |
2716 | dst += dstbpp; |
2717 | }, |
2718 | width); |
2719 | src += srcskip; |
2720 | dst += dstskip; |
2721 | } |
2722 | } |
2723 | |
2724 | /* General (slow) N->N blending with pixel alpha */ |
2725 | static void BlitNtoNPixelAlpha(SDL_BlitInfo *info) |
2726 | { |
2727 | int width = info->d_width; |
2728 | int height = info->d_height; |
2729 | Uint8 *src = info->s_pixels; |
2730 | int srcskip = info->s_skip; |
2731 | Uint8 *dst = info->d_pixels; |
2732 | int dstskip = info->d_skip; |
2733 | SDL_PixelFormat *srcfmt = info->src; |
2734 | SDL_PixelFormat *dstfmt = info->dst; |
2735 | |
2736 | int srcbpp; |
2737 | int dstbpp; |
2738 | |
2739 | /* Set up some basic variables */ |
2740 | srcbpp = srcfmt->BytesPerPixel; |
2741 | dstbpp = dstfmt->BytesPerPixel; |
2742 | |
2743 | /* FIXME: for 8bpp source alpha, this doesn't get opaque values |
2744 | quite right. for <8bpp source alpha, it gets them very wrong |
2745 | (check all macros!) |
2746 | It is unclear whether there is a good general solution that doesn't |
2747 | need a branch (or a divide). */ |
2748 | while ( height-- ) { |
2749 | DUFFS_LOOP4( |
2750 | { |
2751 | Uint32 Pixel; |
2752 | unsigned sR; |
2753 | unsigned sG; |
2754 | unsigned sB; |
2755 | unsigned dR; |
2756 | unsigned dG; |
2757 | unsigned dB; |
2758 | unsigned sA; |
2759 | unsigned dA; |
2760 | DISEMBLE_RGBA(src, srcbpp, srcfmt, Pixel, sR, sG, sB, sA); |
2761 | if(sA) { |
2762 | DISEMBLE_RGBA(dst, dstbpp, dstfmt, Pixel, dR, dG, dB, dA); |
2763 | ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); |
2764 | ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA); |
2765 | } |
2766 | src += srcbpp; |
2767 | dst += dstbpp; |
2768 | }, |
2769 | width); |
2770 | src += srcskip; |
2771 | dst += dstskip; |
2772 | } |
2773 | } |
2774 | |
2775 | |
2776 | SDL_loblit SDL_CalculateAlphaBlit(SDL_Surface *surface, int blit_index) |
2777 | { |
2778 | SDL_PixelFormat *sf = surface->format; |
2779 | SDL_PixelFormat *df = surface->map->dst->format; |
2780 | |
2781 | if(sf->Amask == 0) { |
2782 | if((surface->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) { |
2783 | if(df->BytesPerPixel == 1) |
2784 | return BlitNto1SurfaceAlphaKey; |
2785 | else |
2786 | #if SDL_ALTIVEC_BLITTERS |
2787 | if (sf->BytesPerPixel == 4 && df->BytesPerPixel == 4 && |
2788 | !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec()) |
2789 | return Blit32to32SurfaceAlphaKeyAltivec; |
2790 | else |
2791 | #endif |
2792 | return BlitNtoNSurfaceAlphaKey; |
2793 | } else { |
2794 | /* Per-surface alpha blits */ |
2795 | switch(df->BytesPerPixel) { |
2796 | case 1: |
2797 | return BlitNto1SurfaceAlpha; |
2798 | |
2799 | case 2: |
2800 | if(surface->map->identity) { |
2801 | if(df->Gmask == 0x7e0) |
2802 | { |
2803 | #if MMX_ASMBLIT |
2804 | if(SDL_HasMMX()) |
2805 | return Blit565to565SurfaceAlphaMMX; |
2806 | else |
2807 | #endif |
2808 | return Blit565to565SurfaceAlpha; |
2809 | } |
2810 | else if(df->Gmask == 0x3e0) |
2811 | { |
2812 | #if MMX_ASMBLIT |
2813 | if(SDL_HasMMX()) |
2814 | return Blit555to555SurfaceAlphaMMX; |
2815 | else |
2816 | #endif |
2817 | return Blit555to555SurfaceAlpha; |
2818 | } |
2819 | } |
2820 | return BlitNtoNSurfaceAlpha; |
2821 | |
2822 | case 4: |
2823 | if(sf->Rmask == df->Rmask |
2824 | && sf->Gmask == df->Gmask |
2825 | && sf->Bmask == df->Bmask |
2826 | && sf->BytesPerPixel == 4) |
2827 | { |
2828 | #if MMX_ASMBLIT |
2829 | if(sf->Rshift % 8 == 0 |
2830 | && sf->Gshift % 8 == 0 |
2831 | && sf->Bshift % 8 == 0 |
2832 | && SDL_HasMMX()) |
2833 | return BlitRGBtoRGBSurfaceAlphaMMX; |
2834 | #endif |
2835 | if((sf->Rmask | sf->Gmask | sf->Bmask) == 0xffffff) |
2836 | { |
2837 | #if SDL_ALTIVEC_BLITTERS |
2838 | if(!(surface->map->dst->flags & SDL_HWSURFACE) |
2839 | && SDL_HasAltiVec()) |
2840 | return BlitRGBtoRGBSurfaceAlphaAltivec; |
2841 | #endif |
2842 | return BlitRGBtoRGBSurfaceAlpha; |
2843 | } |
2844 | } |
2845 | #if SDL_ALTIVEC_BLITTERS |
2846 | if((sf->BytesPerPixel == 4) && |
2847 | !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec()) |
2848 | return Blit32to32SurfaceAlphaAltivec; |
2849 | else |
2850 | #endif |
2851 | return BlitNtoNSurfaceAlpha; |
2852 | |
2853 | case 3: |
2854 | default: |
2855 | return BlitNtoNSurfaceAlpha; |
2856 | } |
2857 | } |
2858 | } else { |
2859 | /* Per-pixel alpha blits */ |
2860 | switch(df->BytesPerPixel) { |
2861 | case 1: |
2862 | return BlitNto1PixelAlpha; |
2863 | |
2864 | case 2: |
2865 | #if SDL_ALTIVEC_BLITTERS |
2866 | if(sf->BytesPerPixel == 4 && !(surface->map->dst->flags & SDL_HWSURFACE) && |
2867 | df->Gmask == 0x7e0 && |
2868 | df->Bmask == 0x1f && SDL_HasAltiVec()) |
2869 | return Blit32to565PixelAlphaAltivec; |
2870 | else |
2871 | #endif |
2872 | if(sf->BytesPerPixel == 4 && sf->Amask == 0xff000000 |
2873 | && sf->Gmask == 0xff00 |
2874 | && ((sf->Rmask == 0xff && df->Rmask == 0x1f) |
2875 | || (sf->Bmask == 0xff && df->Bmask == 0x1f))) { |
2876 | if(df->Gmask == 0x7e0) |
2877 | return BlitARGBto565PixelAlpha; |
2878 | else if(df->Gmask == 0x3e0) |
2879 | return BlitARGBto555PixelAlpha; |
2880 | } |
2881 | return BlitNtoNPixelAlpha; |
2882 | |
2883 | case 4: |
2884 | if(sf->Rmask == df->Rmask |
2885 | && sf->Gmask == df->Gmask |
2886 | && sf->Bmask == df->Bmask |
2887 | && sf->BytesPerPixel == 4) |
2888 | { |
2889 | #if MMX_ASMBLIT |
2890 | if(sf->Rshift % 8 == 0 |
2891 | && sf->Gshift % 8 == 0 |
2892 | && sf->Bshift % 8 == 0 |
2893 | && sf->Ashift % 8 == 0 |
2894 | && sf->Aloss == 0) |
2895 | { |
2896 | if(SDL_Has3DNow()) |
2897 | return BlitRGBtoRGBPixelAlphaMMX3DNOW; |
2898 | if(SDL_HasMMX()) |
2899 | return BlitRGBtoRGBPixelAlphaMMX; |
2900 | } |
2901 | #endif |
2902 | if(sf->Amask == 0xff000000) |
2903 | { |
2904 | #if SDL_ALTIVEC_BLITTERS |
2905 | if(!(surface->map->dst->flags & SDL_HWSURFACE) |
2906 | && SDL_HasAltiVec()) |
2907 | return BlitRGBtoRGBPixelAlphaAltivec; |
a1f34081 |
2908 | #endif |
2909 | #ifdef __ARM_NEON__ |
2910 | return BlitARGBtoXRGBalpha_neon; |
e14743d1 |
2911 | #endif |
2912 | return BlitRGBtoRGBPixelAlpha; |
2913 | } |
2914 | } |
a1f34081 |
2915 | #ifdef __ARM_NEON__ |
2916 | if (sf->Gmask == df->Gmask && sf->Amask == 0xff000000 && |
2917 | ((sf->Rmask == 0xff && df->Rmask == 0xff0000 && sf->Bmask == 0xff0000 && df->Bmask == 0xff) || |
2918 | (sf->Rmask == 0xff0000 && df->Rmask == 0xff && sf->Bmask == 0xff && df->Bmask == 0xff0000))) |
2919 | { |
2920 | return BlitABGRtoXRGBalpha_neon; |
2921 | } |
2922 | #endif |
e14743d1 |
2923 | #if SDL_ALTIVEC_BLITTERS |
2924 | if (sf->Amask && sf->BytesPerPixel == 4 && |
2925 | !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec()) |
2926 | return Blit32to32PixelAlphaAltivec; |
2927 | else |
2928 | #endif |
2929 | return BlitNtoNPixelAlpha; |
2930 | |
2931 | case 3: |
2932 | default: |
2933 | return BlitNtoNPixelAlpha; |
2934 | } |
2935 | } |
2936 | } |
2937 | |