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SDL-1.2.14
[sdl_omap.git] / src / video / SDL_blit_N.c
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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_endian.h"
26#include "SDL_cpuinfo.h"
27#include "SDL_blit.h"
28
29/* Functions to blit from N-bit surfaces to other surfaces */
30
31#if SDL_ALTIVEC_BLITTERS
32#if __MWERKS__
33#pragma altivec_model on
34#endif
35#ifdef HAVE_ALTIVEC_H
36#include <altivec.h>
37#endif
38#define assert(X)
39#ifdef __MACOSX__
40#include <sys/sysctl.h>
41static size_t GetL3CacheSize( void )
42{
43 const char key[] = "hw.l3cachesize";
44 u_int64_t result = 0;
45 size_t typeSize = sizeof( result );
46
47
48 int err = sysctlbyname( key, &result, &typeSize, NULL, 0 );
49 if( 0 != err ) return 0;
50
51 return result;
52}
53#else
54static size_t GetL3CacheSize( void )
55{
56 /* XXX: Just guess G4 */
57 return 2097152;
58}
59#endif /* __MACOSX__ */
60
61#if (defined(__MACOSX__) && (__GNUC__ < 4))
62 #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \
63 (vector unsigned char) ( a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p )
64 #define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \
65 (vector unsigned short) ( a,b,c,d,e,f,g,h )
66#else
67 #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \
68 (vector unsigned char) { a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p }
69 #define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \
70 (vector unsigned short) { a,b,c,d,e,f,g,h }
71#endif
72
73#define UNALIGNED_PTR(x) (((size_t) x) & 0x0000000F)
74#define VSWIZZLE32(a,b,c,d) (vector unsigned char) \
75 ( 0x00+a, 0x00+b, 0x00+c, 0x00+d, \
76 0x04+a, 0x04+b, 0x04+c, 0x04+d, \
77 0x08+a, 0x08+b, 0x08+c, 0x08+d, \
78 0x0C+a, 0x0C+b, 0x0C+c, 0x0C+d )
79
80#define MAKE8888(dstfmt, r, g, b, a) \
81 ( ((r<<dstfmt->Rshift)&dstfmt->Rmask) | \
82 ((g<<dstfmt->Gshift)&dstfmt->Gmask) | \
83 ((b<<dstfmt->Bshift)&dstfmt->Bmask) | \
84 ((a<<dstfmt->Ashift)&dstfmt->Amask) )
85
86/*
87 * Data Stream Touch...Altivec cache prefetching.
88 *
89 * Don't use this on a G5...however, the speed boost is very significant
90 * on a G4.
91 */
92#define DST_CHAN_SRC 1
93#define DST_CHAN_DEST 2
94
95/* macro to set DST control word value... */
96#define DST_CTRL(size, count, stride) \
97 (((size) << 24) | ((count) << 16) | (stride))
98
99#define VEC_ALIGNER(src) ((UNALIGNED_PTR(src)) \
100 ? vec_lvsl(0, src) \
101 : vec_add(vec_lvsl(8, src), vec_splat_u8(8)))
102
103/* Calculate the permute vector used for 32->32 swizzling */
104static vector unsigned char calc_swizzle32(const SDL_PixelFormat *srcfmt,
105 const SDL_PixelFormat *dstfmt)
106{
107 /*
108 * We have to assume that the bits that aren't used by other
109 * colors is alpha, and it's one complete byte, since some formats
110 * leave alpha with a zero mask, but we should still swizzle the bits.
111 */
112 /* ARGB */
113 const static struct SDL_PixelFormat default_pixel_format = {
114 NULL, 0, 0,
115 0, 0, 0, 0,
116 16, 8, 0, 24,
117 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000,
118 0, 0};
119 if (!srcfmt) {
120 srcfmt = &default_pixel_format;
121 }
122 if (!dstfmt) {
123 dstfmt = &default_pixel_format;
124 }
125 const vector unsigned char plus = VECUINT8_LITERAL(
126 0x00, 0x00, 0x00, 0x00,
127 0x04, 0x04, 0x04, 0x04,
128 0x08, 0x08, 0x08, 0x08,
129 0x0C, 0x0C, 0x0C, 0x0C );
130 vector unsigned char vswiz;
131 vector unsigned int srcvec;
132#define RESHIFT(X) (3 - ((X) >> 3))
133 Uint32 rmask = RESHIFT(srcfmt->Rshift) << (dstfmt->Rshift);
134 Uint32 gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift);
135 Uint32 bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift);
136 Uint32 amask;
137 /* Use zero for alpha if either surface doesn't have alpha */
138 if (dstfmt->Amask) {
139 amask = ((srcfmt->Amask) ? RESHIFT(srcfmt->Ashift) : 0x10) << (dstfmt->Ashift);
140 } else {
141 amask = 0x10101010 & ((dstfmt->Rmask | dstfmt->Gmask | dstfmt->Bmask) ^ 0xFFFFFFFF);
142 }
143#undef RESHIFT
144 ((unsigned int *)(char*)&srcvec)[0] = (rmask | gmask | bmask | amask);
145 vswiz = vec_add(plus, (vector unsigned char)vec_splat(srcvec, 0));
146 return(vswiz);
147}
148
149static void Blit_RGB888_RGB565(SDL_BlitInfo *info);
150static void Blit_RGB888_RGB565Altivec(SDL_BlitInfo *info) {
151 int height = info->d_height;
152 Uint8 *src = (Uint8 *) info->s_pixels;
153 int srcskip = info->s_skip;
154 Uint8 *dst = (Uint8 *) info->d_pixels;
155 int dstskip = info->d_skip;
156 SDL_PixelFormat *srcfmt = info->src;
157 vector unsigned char valpha = vec_splat_u8(0);
158 vector unsigned char vpermute = calc_swizzle32(srcfmt, NULL);
159 vector unsigned char vgmerge = VECUINT8_LITERAL(
160 0x00, 0x02, 0x00, 0x06,
161 0x00, 0x0a, 0x00, 0x0e,
162 0x00, 0x12, 0x00, 0x16,
163 0x00, 0x1a, 0x00, 0x1e);
164 vector unsigned short v1 = vec_splat_u16(1);
165 vector unsigned short v3 = vec_splat_u16(3);
166 vector unsigned short v3f = VECUINT16_LITERAL(
167 0x003f, 0x003f, 0x003f, 0x003f,
168 0x003f, 0x003f, 0x003f, 0x003f);
169 vector unsigned short vfc = VECUINT16_LITERAL(
170 0x00fc, 0x00fc, 0x00fc, 0x00fc,
171 0x00fc, 0x00fc, 0x00fc, 0x00fc);
172 vector unsigned short vf800 = (vector unsigned short)vec_splat_u8(-7);
173 vf800 = vec_sl(vf800, vec_splat_u16(8));
174
175 while (height--) {
176 vector unsigned char valigner;
177 vector unsigned char voverflow;
178 vector unsigned char vsrc;
179
180 int width = info->d_width;
181 int extrawidth;
182
183 /* do scalar until we can align... */
184#define ONE_PIXEL_BLEND(condition, widthvar) \
185 while (condition) { \
186 Uint32 Pixel; \
187 unsigned sR, sG, sB, sA; \
188 DISEMBLE_RGBA((Uint8 *)src, 4, srcfmt, Pixel, \
189 sR, sG, sB, sA); \
190 *(Uint16 *)(dst) = (((sR << 8) & 0x0000F800) | \
191 ((sG << 3) & 0x000007E0) | \
192 ((sB >> 3) & 0x0000001F)); \
193 dst += 2; \
194 src += 4; \
195 widthvar--; \
196 }
197
198 ONE_PIXEL_BLEND(((UNALIGNED_PTR(dst)) && (width)), width);
199
200 /* After all that work, here's the vector part! */
201 extrawidth = (width % 8); /* trailing unaligned stores */
202 width -= extrawidth;
203 vsrc = vec_ld(0, src);
204 valigner = VEC_ALIGNER(src);
205
206 while (width) {
207 vector unsigned short vpixel, vrpixel, vgpixel, vbpixel;
208 vector unsigned int vsrc1, vsrc2;
209 vector unsigned char vdst;
210
211 voverflow = vec_ld(15, src);
212 vsrc = vec_perm(vsrc, voverflow, valigner);
213 vsrc1 = (vector unsigned int)vec_perm(vsrc, valpha, vpermute);
214 src += 16;
215 vsrc = voverflow;
216 voverflow = vec_ld(15, src);
217 vsrc = vec_perm(vsrc, voverflow, valigner);
218 vsrc2 = (vector unsigned int)vec_perm(vsrc, valpha, vpermute);
219 /* 1555 */
220 vpixel = (vector unsigned short)vec_packpx(vsrc1, vsrc2);
221 vgpixel = (vector unsigned short)vec_perm(vsrc1, vsrc2, vgmerge);
222 vgpixel = vec_and(vgpixel, vfc);
223 vgpixel = vec_sl(vgpixel, v3);
224 vrpixel = vec_sl(vpixel, v1);
225 vrpixel = vec_and(vrpixel, vf800);
226 vbpixel = vec_and(vpixel, v3f);
227 vdst = vec_or((vector unsigned char)vrpixel, (vector unsigned char)vgpixel);
228 /* 565 */
229 vdst = vec_or(vdst, (vector unsigned char)vbpixel);
230 vec_st(vdst, 0, dst);
231
232 width -= 8;
233 src += 16;
234 dst += 16;
235 vsrc = voverflow;
236 }
237
238 assert(width == 0);
239
240 /* do scalar until we can align... */
241 ONE_PIXEL_BLEND((extrawidth), extrawidth);
242#undef ONE_PIXEL_BLEND
243
244 src += srcskip; /* move to next row, accounting for pitch. */
245 dst += dstskip;
246 }
247
248
249}
250
251static void Blit_RGB565_32Altivec(SDL_BlitInfo *info) {
252 int height = info->d_height;
253 Uint8 *src = (Uint8 *) info->s_pixels;
254 int srcskip = info->s_skip;
255 Uint8 *dst = (Uint8 *) info->d_pixels;
256 int dstskip = info->d_skip;
257 SDL_PixelFormat *srcfmt = info->src;
258 SDL_PixelFormat *dstfmt = info->dst;
259 unsigned alpha;
260 vector unsigned char valpha;
261 vector unsigned char vpermute;
262 vector unsigned short vf800;
263 vector unsigned int v8 = vec_splat_u32(8);
264 vector unsigned int v16 = vec_add(v8, v8);
265 vector unsigned short v2 = vec_splat_u16(2);
266 vector unsigned short v3 = vec_splat_u16(3);
267 /*
268 0x10 - 0x1f is the alpha
269 0x00 - 0x0e evens are the red
270 0x01 - 0x0f odds are zero
271 */
272 vector unsigned char vredalpha1 = VECUINT8_LITERAL(
273 0x10, 0x00, 0x01, 0x01,
274 0x10, 0x02, 0x01, 0x01,
275 0x10, 0x04, 0x01, 0x01,
276 0x10, 0x06, 0x01, 0x01
277 );
278 vector unsigned char vredalpha2 = (vector unsigned char) (
279 vec_add((vector unsigned int)vredalpha1, vec_sl(v8, v16))
280 );
281 /*
282 0x00 - 0x0f is ARxx ARxx ARxx ARxx
283 0x11 - 0x0f odds are blue
284 */
285 vector unsigned char vblue1 = VECUINT8_LITERAL(
286 0x00, 0x01, 0x02, 0x11,
287 0x04, 0x05, 0x06, 0x13,
288 0x08, 0x09, 0x0a, 0x15,
289 0x0c, 0x0d, 0x0e, 0x17
290 );
291 vector unsigned char vblue2 = (vector unsigned char)(
292 vec_add((vector unsigned int)vblue1, v8)
293 );
294 /*
295 0x00 - 0x0f is ARxB ARxB ARxB ARxB
296 0x10 - 0x0e evens are green
297 */
298 vector unsigned char vgreen1 = VECUINT8_LITERAL(
299 0x00, 0x01, 0x10, 0x03,
300 0x04, 0x05, 0x12, 0x07,
301 0x08, 0x09, 0x14, 0x0b,
302 0x0c, 0x0d, 0x16, 0x0f
303 );
304 vector unsigned char vgreen2 = (vector unsigned char)(
305 vec_add((vector unsigned int)vgreen1, vec_sl(v8, v8))
306 );
307
308
309 assert(srcfmt->BytesPerPixel == 2);
310 assert(dstfmt->BytesPerPixel == 4);
311
312 vf800 = (vector unsigned short)vec_splat_u8(-7);
313 vf800 = vec_sl(vf800, vec_splat_u16(8));
314
315 if (dstfmt->Amask && srcfmt->alpha) {
316 ((unsigned char *)&valpha)[0] = alpha = srcfmt->alpha;
317 valpha = vec_splat(valpha, 0);
318 } else {
319 alpha = 0;
320 valpha = vec_splat_u8(0);
321 }
322
323 vpermute = calc_swizzle32(NULL, dstfmt);
324 while (height--) {
325 vector unsigned char valigner;
326 vector unsigned char voverflow;
327 vector unsigned char vsrc;
328
329 int width = info->d_width;
330 int extrawidth;
331
332 /* do scalar until we can align... */
333#define ONE_PIXEL_BLEND(condition, widthvar) \
334 while (condition) { \
335 unsigned sR, sG, sB; \
336 unsigned short Pixel = *((unsigned short *)src); \
337 sR = (Pixel >> 8) & 0xf8; \
338 sG = (Pixel >> 3) & 0xfc; \
339 sB = (Pixel << 3) & 0xf8; \
340 ASSEMBLE_RGBA(dst, 4, dstfmt, sR, sG, sB, alpha); \
341 src += 2; \
342 dst += 4; \
343 widthvar--; \
344 }
345 ONE_PIXEL_BLEND(((UNALIGNED_PTR(dst)) && (width)), width);
346
347 /* After all that work, here's the vector part! */
348 extrawidth = (width % 8); /* trailing unaligned stores */
349 width -= extrawidth;
350 vsrc = vec_ld(0, src);
351 valigner = VEC_ALIGNER(src);
352
353 while (width) {
354 vector unsigned short vR, vG, vB;
355 vector unsigned char vdst1, vdst2;
356
357 voverflow = vec_ld(15, src);
358 vsrc = vec_perm(vsrc, voverflow, valigner);
359
360 vR = vec_and((vector unsigned short)vsrc, vf800);
361 vB = vec_sl((vector unsigned short)vsrc, v3);
362 vG = vec_sl(vB, v2);
363
364 vdst1 = (vector unsigned char)vec_perm((vector unsigned char)vR, valpha, vredalpha1);
365 vdst1 = vec_perm(vdst1, (vector unsigned char)vB, vblue1);
366 vdst1 = vec_perm(vdst1, (vector unsigned char)vG, vgreen1);
367 vdst1 = vec_perm(vdst1, valpha, vpermute);
368 vec_st(vdst1, 0, dst);
369
370 vdst2 = (vector unsigned char)vec_perm((vector unsigned char)vR, valpha, vredalpha2);
371 vdst2 = vec_perm(vdst2, (vector unsigned char)vB, vblue2);
372 vdst2 = vec_perm(vdst2, (vector unsigned char)vG, vgreen2);
373 vdst2 = vec_perm(vdst2, valpha, vpermute);
374 vec_st(vdst2, 16, dst);
375
376 width -= 8;
377 dst += 32;
378 src += 16;
379 vsrc = voverflow;
380 }
381
382 assert(width == 0);
383
384
385 /* do scalar until we can align... */
386 ONE_PIXEL_BLEND((extrawidth), extrawidth);
387#undef ONE_PIXEL_BLEND
388
389 src += srcskip; /* move to next row, accounting for pitch. */
390 dst += dstskip;
391 }
392
393}
394
395
396static void Blit_RGB555_32Altivec(SDL_BlitInfo *info) {
397 int height = info->d_height;
398 Uint8 *src = (Uint8 *) info->s_pixels;
399 int srcskip = info->s_skip;
400 Uint8 *dst = (Uint8 *) info->d_pixels;
401 int dstskip = info->d_skip;
402 SDL_PixelFormat *srcfmt = info->src;
403 SDL_PixelFormat *dstfmt = info->dst;
404 unsigned alpha;
405 vector unsigned char valpha;
406 vector unsigned char vpermute;
407 vector unsigned short vf800;
408 vector unsigned int v8 = vec_splat_u32(8);
409 vector unsigned int v16 = vec_add(v8, v8);
410 vector unsigned short v1 = vec_splat_u16(1);
411 vector unsigned short v3 = vec_splat_u16(3);
412 /*
413 0x10 - 0x1f is the alpha
414 0x00 - 0x0e evens are the red
415 0x01 - 0x0f odds are zero
416 */
417 vector unsigned char vredalpha1 = VECUINT8_LITERAL(
418 0x10, 0x00, 0x01, 0x01,
419 0x10, 0x02, 0x01, 0x01,
420 0x10, 0x04, 0x01, 0x01,
421 0x10, 0x06, 0x01, 0x01
422 );
423 vector unsigned char vredalpha2 = (vector unsigned char)(
424 vec_add((vector unsigned int)vredalpha1, vec_sl(v8, v16))
425 );
426 /*
427 0x00 - 0x0f is ARxx ARxx ARxx ARxx
428 0x11 - 0x0f odds are blue
429 */
430 vector unsigned char vblue1 = VECUINT8_LITERAL(
431 0x00, 0x01, 0x02, 0x11,
432 0x04, 0x05, 0x06, 0x13,
433 0x08, 0x09, 0x0a, 0x15,
434 0x0c, 0x0d, 0x0e, 0x17
435 );
436 vector unsigned char vblue2 = (vector unsigned char)(
437 vec_add((vector unsigned int)vblue1, v8)
438 );
439 /*
440 0x00 - 0x0f is ARxB ARxB ARxB ARxB
441 0x10 - 0x0e evens are green
442 */
443 vector unsigned char vgreen1 = VECUINT8_LITERAL(
444 0x00, 0x01, 0x10, 0x03,
445 0x04, 0x05, 0x12, 0x07,
446 0x08, 0x09, 0x14, 0x0b,
447 0x0c, 0x0d, 0x16, 0x0f
448 );
449 vector unsigned char vgreen2 = (vector unsigned char)(
450 vec_add((vector unsigned int)vgreen1, vec_sl(v8, v8))
451 );
452
453
454 assert(srcfmt->BytesPerPixel == 2);
455 assert(dstfmt->BytesPerPixel == 4);
456
457 vf800 = (vector unsigned short)vec_splat_u8(-7);
458 vf800 = vec_sl(vf800, vec_splat_u16(8));
459
460 if (dstfmt->Amask && srcfmt->alpha) {
461 ((unsigned char *)&valpha)[0] = alpha = srcfmt->alpha;
462 valpha = vec_splat(valpha, 0);
463 } else {
464 alpha = 0;
465 valpha = vec_splat_u8(0);
466 }
467
468 vpermute = calc_swizzle32(NULL, dstfmt);
469 while (height--) {
470 vector unsigned char valigner;
471 vector unsigned char voverflow;
472 vector unsigned char vsrc;
473
474 int width = info->d_width;
475 int extrawidth;
476
477 /* do scalar until we can align... */
478#define ONE_PIXEL_BLEND(condition, widthvar) \
479 while (condition) { \
480 unsigned sR, sG, sB; \
481 unsigned short Pixel = *((unsigned short *)src); \
482 sR = (Pixel >> 7) & 0xf8; \
483 sG = (Pixel >> 2) & 0xf8; \
484 sB = (Pixel << 3) & 0xf8; \
485 ASSEMBLE_RGBA(dst, 4, dstfmt, sR, sG, sB, alpha); \
486 src += 2; \
487 dst += 4; \
488 widthvar--; \
489 }
490 ONE_PIXEL_BLEND(((UNALIGNED_PTR(dst)) && (width)), width);
491
492 /* After all that work, here's the vector part! */
493 extrawidth = (width % 8); /* trailing unaligned stores */
494 width -= extrawidth;
495 vsrc = vec_ld(0, src);
496 valigner = VEC_ALIGNER(src);
497
498 while (width) {
499 vector unsigned short vR, vG, vB;
500 vector unsigned char vdst1, vdst2;
501
502 voverflow = vec_ld(15, src);
503 vsrc = vec_perm(vsrc, voverflow, valigner);
504
505 vR = vec_and(vec_sl((vector unsigned short)vsrc,v1), vf800);
506 vB = vec_sl((vector unsigned short)vsrc, v3);
507 vG = vec_sl(vB, v3);
508
509 vdst1 = (vector unsigned char)vec_perm((vector unsigned char)vR, valpha, vredalpha1);
510 vdst1 = vec_perm(vdst1, (vector unsigned char)vB, vblue1);
511 vdst1 = vec_perm(vdst1, (vector unsigned char)vG, vgreen1);
512 vdst1 = vec_perm(vdst1, valpha, vpermute);
513 vec_st(vdst1, 0, dst);
514
515 vdst2 = (vector unsigned char)vec_perm((vector unsigned char)vR, valpha, vredalpha2);
516 vdst2 = vec_perm(vdst2, (vector unsigned char)vB, vblue2);
517 vdst2 = vec_perm(vdst2, (vector unsigned char)vG, vgreen2);
518 vdst2 = vec_perm(vdst2, valpha, vpermute);
519 vec_st(vdst2, 16, dst);
520
521 width -= 8;
522 dst += 32;
523 src += 16;
524 vsrc = voverflow;
525 }
526
527 assert(width == 0);
528
529
530 /* do scalar until we can align... */
531 ONE_PIXEL_BLEND((extrawidth), extrawidth);
532#undef ONE_PIXEL_BLEND
533
534 src += srcskip; /* move to next row, accounting for pitch. */
535 dst += dstskip;
536 }
537
538}
539
540static void BlitNtoNKey(SDL_BlitInfo *info);
541static void BlitNtoNKeyCopyAlpha(SDL_BlitInfo *info);
542static void Blit32to32KeyAltivec(SDL_BlitInfo *info)
543{
544 int height = info->d_height;
545 Uint32 *srcp = (Uint32 *) info->s_pixels;
546 int srcskip = info->s_skip;
547 Uint32 *dstp = (Uint32 *) info->d_pixels;
548 int dstskip = info->d_skip;
549 SDL_PixelFormat *srcfmt = info->src;
550 int srcbpp = srcfmt->BytesPerPixel;
551 SDL_PixelFormat *dstfmt = info->dst;
552 int dstbpp = dstfmt->BytesPerPixel;
553 int copy_alpha = (srcfmt->Amask && dstfmt->Amask);
554 unsigned alpha = dstfmt->Amask ? srcfmt->alpha : 0;
555 Uint32 rgbmask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask;
556 Uint32 ckey = info->src->colorkey;
557 vector unsigned int valpha;
558 vector unsigned char vpermute;
559 vector unsigned char vzero;
560 vector unsigned int vckey;
561 vector unsigned int vrgbmask;
562 vpermute = calc_swizzle32(srcfmt, dstfmt);
563 if (info->d_width < 16) {
564 if(copy_alpha) {
565 BlitNtoNKeyCopyAlpha(info);
566 } else {
567 BlitNtoNKey(info);
568 }
569 return;
570 }
571 vzero = vec_splat_u8(0);
572 if (alpha) {
573 ((unsigned char *)&valpha)[0] = (unsigned char)alpha;
574 valpha = (vector unsigned int)vec_splat((vector unsigned char)valpha, 0);
575 } else {
576 valpha = (vector unsigned int)vzero;
577 }
578 ckey &= rgbmask;
579 ((unsigned int *)(char*)&vckey)[0] = ckey;
580 vckey = vec_splat(vckey, 0);
581 ((unsigned int *)(char*)&vrgbmask)[0] = rgbmask;
582 vrgbmask = vec_splat(vrgbmask, 0);
583
584 while (height--) {
585#define ONE_PIXEL_BLEND(condition, widthvar) \
586 if (copy_alpha) { \
587 while (condition) { \
588 Uint32 Pixel; \
589 unsigned sR, sG, sB, sA; \
590 DISEMBLE_RGBA((Uint8 *)srcp, srcbpp, srcfmt, Pixel, \
591 sR, sG, sB, sA); \
592 if ( (Pixel & rgbmask) != ckey ) { \
593 ASSEMBLE_RGBA((Uint8 *)dstp, dstbpp, dstfmt, \
594 sR, sG, sB, sA); \
595 } \
596 dstp = (Uint32 *) (((Uint8 *) dstp) + dstbpp); \
597 srcp = (Uint32 *) (((Uint8 *) srcp) + srcbpp); \
598 widthvar--; \
599 } \
600 } else { \
601 while (condition) { \
602 Uint32 Pixel; \
603 unsigned sR, sG, sB; \
604 RETRIEVE_RGB_PIXEL((Uint8 *)srcp, srcbpp, Pixel); \
605 if ( Pixel != ckey ) { \
606 RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB); \
607 ASSEMBLE_RGBA((Uint8 *)dstp, dstbpp, dstfmt, \
608 sR, sG, sB, alpha); \
609 } \
610 dstp = (Uint32 *) (((Uint8 *)dstp) + dstbpp); \
611 srcp = (Uint32 *) (((Uint8 *)srcp) + srcbpp); \
612 widthvar--; \
613 } \
614 }
615 int width = info->d_width;
616 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
617 assert(width > 0);
618 if (width > 0) {
619 int extrawidth = (width % 4);
620 vector unsigned char valigner = VEC_ALIGNER(srcp);
621 vector unsigned int vs = vec_ld(0, srcp);
622 width -= extrawidth;
623 assert(width >= 4);
624 while (width) {
625 vector unsigned char vsel;
626 vector unsigned int vd;
627 vector unsigned int voverflow = vec_ld(15, srcp);
628 /* load the source vec */
629 vs = vec_perm(vs, voverflow, valigner);
630 /* vsel is set for items that match the key */
631 vsel = (vector unsigned char)vec_and(vs, vrgbmask);
632 vsel = (vector unsigned char)vec_cmpeq(vs, vckey);
633 /* permute the src vec to the dest format */
634 vs = vec_perm(vs, valpha, vpermute);
635 /* load the destination vec */
636 vd = vec_ld(0, dstp);
637 /* select the source and dest into vs */
638 vd = (vector unsigned int)vec_sel((vector unsigned char)vs, (vector unsigned char)vd, vsel);
639
640 vec_st(vd, 0, dstp);
641 srcp += 4;
642 width -= 4;
643 dstp += 4;
644 vs = voverflow;
645 }
646 ONE_PIXEL_BLEND((extrawidth), extrawidth);
647#undef ONE_PIXEL_BLEND
648 srcp += srcskip >> 2;
649 dstp += dstskip >> 2;
650 }
651 }
652}
653
654/* Altivec code to swizzle one 32-bit surface to a different 32-bit format. */
655/* Use this on a G5 */
656static void ConvertAltivec32to32_noprefetch(SDL_BlitInfo *info)
657{
658 int height = info->d_height;
659 Uint32 *src = (Uint32 *) info->s_pixels;
660 int srcskip = info->s_skip;
661 Uint32 *dst = (Uint32 *) info->d_pixels;
662 int dstskip = info->d_skip;
663 SDL_PixelFormat *srcfmt = info->src;
664 SDL_PixelFormat *dstfmt = info->dst;
665 vector unsigned int vzero = vec_splat_u32(0);
666 vector unsigned char vpermute = calc_swizzle32(srcfmt, dstfmt);
667 if (dstfmt->Amask && !srcfmt->Amask) {
668 if (srcfmt->alpha) {
669 vector unsigned char valpha;
670 ((unsigned char *)&valpha)[0] = srcfmt->alpha;
671 vzero = (vector unsigned int)vec_splat(valpha, 0);
672 }
673 }
674
675 assert(srcfmt->BytesPerPixel == 4);
676 assert(dstfmt->BytesPerPixel == 4);
677
678 while (height--) {
679 vector unsigned char valigner;
680 vector unsigned int vbits;
681 vector unsigned int voverflow;
682 Uint32 bits;
683 Uint8 r, g, b, a;
684
685 int width = info->d_width;
686 int extrawidth;
687
688 /* do scalar until we can align... */
689 while ((UNALIGNED_PTR(dst)) && (width)) {
690 bits = *(src++);
691 RGBA_FROM_8888(bits, srcfmt, r, g, b, a);
692 *(dst++) = MAKE8888(dstfmt, r, g, b, a);
693 width--;
694 }
695
696 /* After all that work, here's the vector part! */
697 extrawidth = (width % 4);
698 width -= extrawidth;
699 valigner = VEC_ALIGNER(src);
700 vbits = vec_ld(0, src);
701
702 while (width) {
703 voverflow = vec_ld(15, src);
704 src += 4;
705 width -= 4;
706 vbits = vec_perm(vbits, voverflow, valigner); /* src is ready. */
707 vbits = vec_perm(vbits, vzero, vpermute); /* swizzle it. */
708 vec_st(vbits, 0, dst); /* store it back out. */
709 dst += 4;
710 vbits = voverflow;
711 }
712
713 assert(width == 0);
714
715 /* cover pixels at the end of the row that didn't fit in 16 bytes. */
716 while (extrawidth) {
717 bits = *(src++); /* max 7 pixels, don't bother with prefetch. */
718 RGBA_FROM_8888(bits, srcfmt, r, g, b, a);
719 *(dst++) = MAKE8888(dstfmt, r, g, b, a);
720 extrawidth--;
721 }
722
723 src += srcskip >> 2; /* move to next row, accounting for pitch. */
724 dst += dstskip >> 2;
725 }
726
727}
728
729/* Altivec code to swizzle one 32-bit surface to a different 32-bit format. */
730/* Use this on a G4 */
731static void ConvertAltivec32to32_prefetch(SDL_BlitInfo *info)
732{
733 const int scalar_dst_lead = sizeof (Uint32) * 4;
734 const int vector_dst_lead = sizeof (Uint32) * 16;
735
736 int height = info->d_height;
737 Uint32 *src = (Uint32 *) info->s_pixels;
738 int srcskip = info->s_skip;
739 Uint32 *dst = (Uint32 *) info->d_pixels;
740 int dstskip = info->d_skip;
741 SDL_PixelFormat *srcfmt = info->src;
742 SDL_PixelFormat *dstfmt = info->dst;
743 vector unsigned int vzero = vec_splat_u32(0);
744 vector unsigned char vpermute = calc_swizzle32(srcfmt, dstfmt);
745 if (dstfmt->Amask && !srcfmt->Amask) {
746 if (srcfmt->alpha) {
747 vector unsigned char valpha;
748 ((unsigned char *)&valpha)[0] = srcfmt->alpha;
749 vzero = (vector unsigned int)vec_splat(valpha, 0);
750 }
751 }
752
753 assert(srcfmt->BytesPerPixel == 4);
754 assert(dstfmt->BytesPerPixel == 4);
755
756 while (height--) {
757 vector unsigned char valigner;
758 vector unsigned int vbits;
759 vector unsigned int voverflow;
760 Uint32 bits;
761 Uint8 r, g, b, a;
762
763 int width = info->d_width;
764 int extrawidth;
765
766 /* do scalar until we can align... */
767 while ((UNALIGNED_PTR(dst)) && (width)) {
768 vec_dstt(src+scalar_dst_lead, DST_CTRL(2,32,1024), DST_CHAN_SRC);
769 vec_dstst(dst+scalar_dst_lead, DST_CTRL(2,32,1024), DST_CHAN_DEST);
770 bits = *(src++);
771 RGBA_FROM_8888(bits, srcfmt, r, g, b, a);
772 *(dst++) = MAKE8888(dstfmt, r, g, b, a);
773 width--;
774 }
775
776 /* After all that work, here's the vector part! */
777 extrawidth = (width % 4);
778 width -= extrawidth;
779 valigner = VEC_ALIGNER(src);
780 vbits = vec_ld(0, src);
781
782 while (width) {
783 vec_dstt(src+vector_dst_lead, DST_CTRL(2,32,1024), DST_CHAN_SRC);
784 vec_dstst(dst+vector_dst_lead, DST_CTRL(2,32,1024), DST_CHAN_DEST);
785 voverflow = vec_ld(15, src);
786 src += 4;
787 width -= 4;
788 vbits = vec_perm(vbits, voverflow, valigner); /* src is ready. */
789 vbits = vec_perm(vbits, vzero, vpermute); /* swizzle it. */
790 vec_st(vbits, 0, dst); /* store it back out. */
791 dst += 4;
792 vbits = voverflow;
793 }
794
795 assert(width == 0);
796
797 /* cover pixels at the end of the row that didn't fit in 16 bytes. */
798 while (extrawidth) {
799 bits = *(src++); /* max 7 pixels, don't bother with prefetch. */
800 RGBA_FROM_8888(bits, srcfmt, r, g, b, a);
801 *(dst++) = MAKE8888(dstfmt, r, g, b, a);
802 extrawidth--;
803 }
804
805 src += srcskip >> 2; /* move to next row, accounting for pitch. */
806 dst += dstskip >> 2;
807 }
808
809 vec_dss(DST_CHAN_SRC);
810 vec_dss(DST_CHAN_DEST);
811}
812
813static Uint32 GetBlitFeatures( void )
814{
815 static Uint32 features = 0xffffffff;
816 if (features == 0xffffffff) {
817 /* Provide an override for testing .. */
818 char *override = SDL_getenv("SDL_ALTIVEC_BLIT_FEATURES");
819 if (override) {
820 features = 0;
821 SDL_sscanf(override, "%u", &features);
822 } else {
823 features = ( 0
824 /* Feature 1 is has-MMX */
825 | ((SDL_HasMMX()) ? 1 : 0)
826 /* Feature 2 is has-AltiVec */
827 | ((SDL_HasAltiVec()) ? 2 : 0)
828 /* Feature 4 is dont-use-prefetch */
829 /* !!!! FIXME: Check for G5 or later, not the cache size! Always prefetch on a G4. */
830 | ((GetL3CacheSize() == 0) ? 4 : 0)
831 );
832 }
833 }
834 return features;
835}
836#if __MWERKS__
837#pragma altivec_model off
838#endif
839#else
840/* Feature 1 is has-MMX */
841#define GetBlitFeatures() ((Uint32)(SDL_HasMMX() ? 1 : 0))
842#endif
843
844/* This is now endian dependent */
845#if SDL_BYTEORDER == SDL_LIL_ENDIAN
846#define HI 1
847#define LO 0
848#else /* SDL_BYTEORDER == SDL_BIG_ENDIAN */
849#define HI 0
850#define LO 1
851#endif
852
853#if SDL_HERMES_BLITTERS
854
855/* Heheheh, we coerce Hermes into using SDL blit information */
856#define X86_ASSEMBLER
857#define HermesConverterInterface SDL_BlitInfo
858#define HermesClearInterface void
859#define STACKCALL
860
861#include "../hermes/HeadMMX.h"
862#include "../hermes/HeadX86.h"
863
864#else
865
866/* Special optimized blit for RGB 8-8-8 --> RGB 3-3-2 */
867#define RGB888_RGB332(dst, src) { \
868 dst = (Uint8)((((src)&0x00E00000)>>16)| \
869 (((src)&0x0000E000)>>11)| \
870 (((src)&0x000000C0)>>6)); \
871}
872static void Blit_RGB888_index8(SDL_BlitInfo *info)
873{
874#ifndef USE_DUFFS_LOOP
875 int c;
876#endif
877 int width, height;
878 Uint32 *src;
879 const Uint8 *map;
880 Uint8 *dst;
881 int srcskip, dstskip;
882
883 /* Set up some basic variables */
884 width = info->d_width;
885 height = info->d_height;
886 src = (Uint32 *)info->s_pixels;
887 srcskip = info->s_skip/4;
888 dst = info->d_pixels;
889 dstskip = info->d_skip;
890 map = info->table;
891
892 if ( map == NULL ) {
893 while ( height-- ) {
894#ifdef USE_DUFFS_LOOP
895 DUFFS_LOOP(
896 RGB888_RGB332(*dst++, *src);
897 , width);
898#else
899 for ( c=width/4; c; --c ) {
900 /* Pack RGB into 8bit pixel */
901 ++src;
902 RGB888_RGB332(*dst++, *src);
903 ++src;
904 RGB888_RGB332(*dst++, *src);
905 ++src;
906 RGB888_RGB332(*dst++, *src);
907 ++src;
908 }
909 switch ( width & 3 ) {
910 case 3:
911 RGB888_RGB332(*dst++, *src);
912 ++src;
913 case 2:
914 RGB888_RGB332(*dst++, *src);
915 ++src;
916 case 1:
917 RGB888_RGB332(*dst++, *src);
918 ++src;
919 }
920#endif /* USE_DUFFS_LOOP */
921 src += srcskip;
922 dst += dstskip;
923 }
924 } else {
925 int Pixel;
926
927 while ( height-- ) {
928#ifdef USE_DUFFS_LOOP
929 DUFFS_LOOP(
930 RGB888_RGB332(Pixel, *src);
931 *dst++ = map[Pixel];
932 ++src;
933 , width);
934#else
935 for ( c=width/4; c; --c ) {
936 /* Pack RGB into 8bit pixel */
937 RGB888_RGB332(Pixel, *src);
938 *dst++ = map[Pixel];
939 ++src;
940 RGB888_RGB332(Pixel, *src);
941 *dst++ = map[Pixel];
942 ++src;
943 RGB888_RGB332(Pixel, *src);
944 *dst++ = map[Pixel];
945 ++src;
946 RGB888_RGB332(Pixel, *src);
947 *dst++ = map[Pixel];
948 ++src;
949 }
950 switch ( width & 3 ) {
951 case 3:
952 RGB888_RGB332(Pixel, *src);
953 *dst++ = map[Pixel];
954 ++src;
955 case 2:
956 RGB888_RGB332(Pixel, *src);
957 *dst++ = map[Pixel];
958 ++src;
959 case 1:
960 RGB888_RGB332(Pixel, *src);
961 *dst++ = map[Pixel];
962 ++src;
963 }
964#endif /* USE_DUFFS_LOOP */
965 src += srcskip;
966 dst += dstskip;
967 }
968 }
969}
970/* Special optimized blit for RGB 8-8-8 --> RGB 5-5-5 */
971#define RGB888_RGB555(dst, src) { \
972 *(Uint16 *)(dst) = (Uint16)((((*src)&0x00F80000)>>9)| \
973 (((*src)&0x0000F800)>>6)| \
974 (((*src)&0x000000F8)>>3)); \
975}
976#define RGB888_RGB555_TWO(dst, src) { \
977 *(Uint32 *)(dst) = (((((src[HI])&0x00F80000)>>9)| \
978 (((src[HI])&0x0000F800)>>6)| \
979 (((src[HI])&0x000000F8)>>3))<<16)| \
980 (((src[LO])&0x00F80000)>>9)| \
981 (((src[LO])&0x0000F800)>>6)| \
982 (((src[LO])&0x000000F8)>>3); \
983}
984static void Blit_RGB888_RGB555(SDL_BlitInfo *info)
985{
986#ifndef USE_DUFFS_LOOP
987 int c;
988#endif
989 int width, height;
990 Uint32 *src;
991 Uint16 *dst;
992 int srcskip, dstskip;
993
994 /* Set up some basic variables */
995 width = info->d_width;
996 height = info->d_height;
997 src = (Uint32 *)info->s_pixels;
998 srcskip = info->s_skip/4;
999 dst = (Uint16 *)info->d_pixels;
1000 dstskip = info->d_skip/2;
1001
1002#ifdef USE_DUFFS_LOOP
1003 while ( height-- ) {
1004 DUFFS_LOOP(
1005 RGB888_RGB555(dst, src);
1006 ++src;
1007 ++dst;
1008 , width);
1009 src += srcskip;
1010 dst += dstskip;
1011 }
1012#else
1013 /* Memory align at 4-byte boundary, if necessary */
1014 if ( (long)dst & 0x03 ) {
1015 /* Don't do anything if width is 0 */
1016 if ( width == 0 ) {
1017 return;
1018 }
1019 --width;
1020
1021 while ( height-- ) {
1022 /* Perform copy alignment */
1023 RGB888_RGB555(dst, src);
1024 ++src;
1025 ++dst;
1026
1027 /* Copy in 4 pixel chunks */
1028 for ( c=width/4; c; --c ) {
1029 RGB888_RGB555_TWO(dst, src);
1030 src += 2;
1031 dst += 2;
1032 RGB888_RGB555_TWO(dst, src);
1033 src += 2;
1034 dst += 2;
1035 }
1036 /* Get any leftovers */
1037 switch (width & 3) {
1038 case 3:
1039 RGB888_RGB555(dst, src);
1040 ++src;
1041 ++dst;
1042 case 2:
1043 RGB888_RGB555_TWO(dst, src);
1044 src += 2;
1045 dst += 2;
1046 break;
1047 case 1:
1048 RGB888_RGB555(dst, src);
1049 ++src;
1050 ++dst;
1051 break;
1052 }
1053 src += srcskip;
1054 dst += dstskip;
1055 }
1056 } else {
1057 while ( height-- ) {
1058 /* Copy in 4 pixel chunks */
1059 for ( c=width/4; c; --c ) {
1060 RGB888_RGB555_TWO(dst, src);
1061 src += 2;
1062 dst += 2;
1063 RGB888_RGB555_TWO(dst, src);
1064 src += 2;
1065 dst += 2;
1066 }
1067 /* Get any leftovers */
1068 switch (width & 3) {
1069 case 3:
1070 RGB888_RGB555(dst, src);
1071 ++src;
1072 ++dst;
1073 case 2:
1074 RGB888_RGB555_TWO(dst, src);
1075 src += 2;
1076 dst += 2;
1077 break;
1078 case 1:
1079 RGB888_RGB555(dst, src);
1080 ++src;
1081 ++dst;
1082 break;
1083 }
1084 src += srcskip;
1085 dst += dstskip;
1086 }
1087 }
1088#endif /* USE_DUFFS_LOOP */
1089}
1090/* Special optimized blit for RGB 8-8-8 --> RGB 5-6-5 */
1091#define RGB888_RGB565(dst, src) { \
1092 *(Uint16 *)(dst) = (Uint16)((((*src)&0x00F80000)>>8)| \
1093 (((*src)&0x0000FC00)>>5)| \
1094 (((*src)&0x000000F8)>>3)); \
1095}
1096#define RGB888_RGB565_TWO(dst, src) { \
1097 *(Uint32 *)(dst) = (((((src[HI])&0x00F80000)>>8)| \
1098 (((src[HI])&0x0000FC00)>>5)| \
1099 (((src[HI])&0x000000F8)>>3))<<16)| \
1100 (((src[LO])&0x00F80000)>>8)| \
1101 (((src[LO])&0x0000FC00)>>5)| \
1102 (((src[LO])&0x000000F8)>>3); \
1103}
1104static void Blit_RGB888_RGB565(SDL_BlitInfo *info)
1105{
1106#ifndef USE_DUFFS_LOOP
1107 int c;
1108#endif
1109 int width, height;
1110 Uint32 *src;
1111 Uint16 *dst;
1112 int srcskip, dstskip;
1113
1114 /* Set up some basic variables */
1115 width = info->d_width;
1116 height = info->d_height;
1117 src = (Uint32 *)info->s_pixels;
1118 srcskip = info->s_skip/4;
1119 dst = (Uint16 *)info->d_pixels;
1120 dstskip = info->d_skip/2;
1121
1122#ifdef USE_DUFFS_LOOP
1123 while ( height-- ) {
1124 DUFFS_LOOP(
1125 RGB888_RGB565(dst, src);
1126 ++src;
1127 ++dst;
1128 , width);
1129 src += srcskip;
1130 dst += dstskip;
1131 }
1132#else
1133 /* Memory align at 4-byte boundary, if necessary */
1134 if ( (long)dst & 0x03 ) {
1135 /* Don't do anything if width is 0 */
1136 if ( width == 0 ) {
1137 return;
1138 }
1139 --width;
1140
1141 while ( height-- ) {
1142 /* Perform copy alignment */
1143 RGB888_RGB565(dst, src);
1144 ++src;
1145 ++dst;
1146
1147 /* Copy in 4 pixel chunks */
1148 for ( c=width/4; c; --c ) {
1149 RGB888_RGB565_TWO(dst, src);
1150 src += 2;
1151 dst += 2;
1152 RGB888_RGB565_TWO(dst, src);
1153 src += 2;
1154 dst += 2;
1155 }
1156 /* Get any leftovers */
1157 switch (width & 3) {
1158 case 3:
1159 RGB888_RGB565(dst, src);
1160 ++src;
1161 ++dst;
1162 case 2:
1163 RGB888_RGB565_TWO(dst, src);
1164 src += 2;
1165 dst += 2;
1166 break;
1167 case 1:
1168 RGB888_RGB565(dst, src);
1169 ++src;
1170 ++dst;
1171 break;
1172 }
1173 src += srcskip;
1174 dst += dstskip;
1175 }
1176 } else {
1177 while ( height-- ) {
1178 /* Copy in 4 pixel chunks */
1179 for ( c=width/4; c; --c ) {
1180 RGB888_RGB565_TWO(dst, src);
1181 src += 2;
1182 dst += 2;
1183 RGB888_RGB565_TWO(dst, src);
1184 src += 2;
1185 dst += 2;
1186 }
1187 /* Get any leftovers */
1188 switch (width & 3) {
1189 case 3:
1190 RGB888_RGB565(dst, src);
1191 ++src;
1192 ++dst;
1193 case 2:
1194 RGB888_RGB565_TWO(dst, src);
1195 src += 2;
1196 dst += 2;
1197 break;
1198 case 1:
1199 RGB888_RGB565(dst, src);
1200 ++src;
1201 ++dst;
1202 break;
1203 }
1204 src += srcskip;
1205 dst += dstskip;
1206 }
1207 }
1208#endif /* USE_DUFFS_LOOP */
1209}
1210
1211#endif /* SDL_HERMES_BLITTERS */
1212
1213
1214/* Special optimized blit for RGB 5-6-5 --> 32-bit RGB surfaces */
1215#define RGB565_32(dst, src, map) (map[src[LO]*2] + map[src[HI]*2+1])
1216static void Blit_RGB565_32(SDL_BlitInfo *info, const Uint32 *map)
1217{
1218#ifndef USE_DUFFS_LOOP
1219 int c;
1220#endif
1221 int width, height;
1222 Uint8 *src;
1223 Uint32 *dst;
1224 int srcskip, dstskip;
1225
1226 /* Set up some basic variables */
1227 width = info->d_width;
1228 height = info->d_height;
1229 src = (Uint8 *)info->s_pixels;
1230 srcskip = info->s_skip;
1231 dst = (Uint32 *)info->d_pixels;
1232 dstskip = info->d_skip/4;
1233
1234#ifdef USE_DUFFS_LOOP
1235 while ( height-- ) {
1236 DUFFS_LOOP(
1237 {
1238 *dst++ = RGB565_32(dst, src, map);
1239 src += 2;
1240 },
1241 width);
1242 src += srcskip;
1243 dst += dstskip;
1244 }
1245#else
1246 while ( height-- ) {
1247 /* Copy in 4 pixel chunks */
1248 for ( c=width/4; c; --c ) {
1249 *dst++ = RGB565_32(dst, src, map);
1250 src += 2;
1251 *dst++ = RGB565_32(dst, src, map);
1252 src += 2;
1253 *dst++ = RGB565_32(dst, src, map);
1254 src += 2;
1255 *dst++ = RGB565_32(dst, src, map);
1256 src += 2;
1257 }
1258 /* Get any leftovers */
1259 switch (width & 3) {
1260 case 3:
1261 *dst++ = RGB565_32(dst, src, map);
1262 src += 2;
1263 case 2:
1264 *dst++ = RGB565_32(dst, src, map);
1265 src += 2;
1266 case 1:
1267 *dst++ = RGB565_32(dst, src, map);
1268 src += 2;
1269 break;
1270 }
1271 src += srcskip;
1272 dst += dstskip;
1273 }
1274#endif /* USE_DUFFS_LOOP */
1275}
1276
1277/* Special optimized blit for RGB 5-6-5 --> ARGB 8-8-8-8 */
1278static const Uint32 RGB565_ARGB8888_LUT[512] = {
1279 0x00000000, 0xff000000, 0x00000008, 0xff002000,
1280 0x00000010, 0xff004000, 0x00000018, 0xff006100,
1281 0x00000020, 0xff008100, 0x00000029, 0xff00a100,
1282 0x00000031, 0xff00c200, 0x00000039, 0xff00e200,
1283 0x00000041, 0xff080000, 0x0000004a, 0xff082000,
1284 0x00000052, 0xff084000, 0x0000005a, 0xff086100,
1285 0x00000062, 0xff088100, 0x0000006a, 0xff08a100,
1286 0x00000073, 0xff08c200, 0x0000007b, 0xff08e200,
1287 0x00000083, 0xff100000, 0x0000008b, 0xff102000,
1288 0x00000094, 0xff104000, 0x0000009c, 0xff106100,
1289 0x000000a4, 0xff108100, 0x000000ac, 0xff10a100,
1290 0x000000b4, 0xff10c200, 0x000000bd, 0xff10e200,
1291 0x000000c5, 0xff180000, 0x000000cd, 0xff182000,
1292 0x000000d5, 0xff184000, 0x000000de, 0xff186100,
1293 0x000000e6, 0xff188100, 0x000000ee, 0xff18a100,
1294 0x000000f6, 0xff18c200, 0x000000ff, 0xff18e200,
1295 0x00000400, 0xff200000, 0x00000408, 0xff202000,
1296 0x00000410, 0xff204000, 0x00000418, 0xff206100,
1297 0x00000420, 0xff208100, 0x00000429, 0xff20a100,
1298 0x00000431, 0xff20c200, 0x00000439, 0xff20e200,
1299 0x00000441, 0xff290000, 0x0000044a, 0xff292000,
1300 0x00000452, 0xff294000, 0x0000045a, 0xff296100,
1301 0x00000462, 0xff298100, 0x0000046a, 0xff29a100,
1302 0x00000473, 0xff29c200, 0x0000047b, 0xff29e200,
1303 0x00000483, 0xff310000, 0x0000048b, 0xff312000,
1304 0x00000494, 0xff314000, 0x0000049c, 0xff316100,
1305 0x000004a4, 0xff318100, 0x000004ac, 0xff31a100,
1306 0x000004b4, 0xff31c200, 0x000004bd, 0xff31e200,
1307 0x000004c5, 0xff390000, 0x000004cd, 0xff392000,
1308 0x000004d5, 0xff394000, 0x000004de, 0xff396100,
1309 0x000004e6, 0xff398100, 0x000004ee, 0xff39a100,
1310 0x000004f6, 0xff39c200, 0x000004ff, 0xff39e200,
1311 0x00000800, 0xff410000, 0x00000808, 0xff412000,
1312 0x00000810, 0xff414000, 0x00000818, 0xff416100,
1313 0x00000820, 0xff418100, 0x00000829, 0xff41a100,
1314 0x00000831, 0xff41c200, 0x00000839, 0xff41e200,
1315 0x00000841, 0xff4a0000, 0x0000084a, 0xff4a2000,
1316 0x00000852, 0xff4a4000, 0x0000085a, 0xff4a6100,
1317 0x00000862, 0xff4a8100, 0x0000086a, 0xff4aa100,
1318 0x00000873, 0xff4ac200, 0x0000087b, 0xff4ae200,
1319 0x00000883, 0xff520000, 0x0000088b, 0xff522000,
1320 0x00000894, 0xff524000, 0x0000089c, 0xff526100,
1321 0x000008a4, 0xff528100, 0x000008ac, 0xff52a100,
1322 0x000008b4, 0xff52c200, 0x000008bd, 0xff52e200,
1323 0x000008c5, 0xff5a0000, 0x000008cd, 0xff5a2000,
1324 0x000008d5, 0xff5a4000, 0x000008de, 0xff5a6100,
1325 0x000008e6, 0xff5a8100, 0x000008ee, 0xff5aa100,
1326 0x000008f6, 0xff5ac200, 0x000008ff, 0xff5ae200,
1327 0x00000c00, 0xff620000, 0x00000c08, 0xff622000,
1328 0x00000c10, 0xff624000, 0x00000c18, 0xff626100,
1329 0x00000c20, 0xff628100, 0x00000c29, 0xff62a100,
1330 0x00000c31, 0xff62c200, 0x00000c39, 0xff62e200,
1331 0x00000c41, 0xff6a0000, 0x00000c4a, 0xff6a2000,
1332 0x00000c52, 0xff6a4000, 0x00000c5a, 0xff6a6100,
1333 0x00000c62, 0xff6a8100, 0x00000c6a, 0xff6aa100,
1334 0x00000c73, 0xff6ac200, 0x00000c7b, 0xff6ae200,
1335 0x00000c83, 0xff730000, 0x00000c8b, 0xff732000,
1336 0x00000c94, 0xff734000, 0x00000c9c, 0xff736100,
1337 0x00000ca4, 0xff738100, 0x00000cac, 0xff73a100,
1338 0x00000cb4, 0xff73c200, 0x00000cbd, 0xff73e200,
1339 0x00000cc5, 0xff7b0000, 0x00000ccd, 0xff7b2000,
1340 0x00000cd5, 0xff7b4000, 0x00000cde, 0xff7b6100,
1341 0x00000ce6, 0xff7b8100, 0x00000cee, 0xff7ba100,
1342 0x00000cf6, 0xff7bc200, 0x00000cff, 0xff7be200,
1343 0x00001000, 0xff830000, 0x00001008, 0xff832000,
1344 0x00001010, 0xff834000, 0x00001018, 0xff836100,
1345 0x00001020, 0xff838100, 0x00001029, 0xff83a100,
1346 0x00001031, 0xff83c200, 0x00001039, 0xff83e200,
1347 0x00001041, 0xff8b0000, 0x0000104a, 0xff8b2000,
1348 0x00001052, 0xff8b4000, 0x0000105a, 0xff8b6100,
1349 0x00001062, 0xff8b8100, 0x0000106a, 0xff8ba100,
1350 0x00001073, 0xff8bc200, 0x0000107b, 0xff8be200,
1351 0x00001083, 0xff940000, 0x0000108b, 0xff942000,
1352 0x00001094, 0xff944000, 0x0000109c, 0xff946100,
1353 0x000010a4, 0xff948100, 0x000010ac, 0xff94a100,
1354 0x000010b4, 0xff94c200, 0x000010bd, 0xff94e200,
1355 0x000010c5, 0xff9c0000, 0x000010cd, 0xff9c2000,
1356 0x000010d5, 0xff9c4000, 0x000010de, 0xff9c6100,
1357 0x000010e6, 0xff9c8100, 0x000010ee, 0xff9ca100,
1358 0x000010f6, 0xff9cc200, 0x000010ff, 0xff9ce200,
1359 0x00001400, 0xffa40000, 0x00001408, 0xffa42000,
1360 0x00001410, 0xffa44000, 0x00001418, 0xffa46100,
1361 0x00001420, 0xffa48100, 0x00001429, 0xffa4a100,
1362 0x00001431, 0xffa4c200, 0x00001439, 0xffa4e200,
1363 0x00001441, 0xffac0000, 0x0000144a, 0xffac2000,
1364 0x00001452, 0xffac4000, 0x0000145a, 0xffac6100,
1365 0x00001462, 0xffac8100, 0x0000146a, 0xffaca100,
1366 0x00001473, 0xffacc200, 0x0000147b, 0xfface200,
1367 0x00001483, 0xffb40000, 0x0000148b, 0xffb42000,
1368 0x00001494, 0xffb44000, 0x0000149c, 0xffb46100,
1369 0x000014a4, 0xffb48100, 0x000014ac, 0xffb4a100,
1370 0x000014b4, 0xffb4c200, 0x000014bd, 0xffb4e200,
1371 0x000014c5, 0xffbd0000, 0x000014cd, 0xffbd2000,
1372 0x000014d5, 0xffbd4000, 0x000014de, 0xffbd6100,
1373 0x000014e6, 0xffbd8100, 0x000014ee, 0xffbda100,
1374 0x000014f6, 0xffbdc200, 0x000014ff, 0xffbde200,
1375 0x00001800, 0xffc50000, 0x00001808, 0xffc52000,
1376 0x00001810, 0xffc54000, 0x00001818, 0xffc56100,
1377 0x00001820, 0xffc58100, 0x00001829, 0xffc5a100,
1378 0x00001831, 0xffc5c200, 0x00001839, 0xffc5e200,
1379 0x00001841, 0xffcd0000, 0x0000184a, 0xffcd2000,
1380 0x00001852, 0xffcd4000, 0x0000185a, 0xffcd6100,
1381 0x00001862, 0xffcd8100, 0x0000186a, 0xffcda100,
1382 0x00001873, 0xffcdc200, 0x0000187b, 0xffcde200,
1383 0x00001883, 0xffd50000, 0x0000188b, 0xffd52000,
1384 0x00001894, 0xffd54000, 0x0000189c, 0xffd56100,
1385 0x000018a4, 0xffd58100, 0x000018ac, 0xffd5a100,
1386 0x000018b4, 0xffd5c200, 0x000018bd, 0xffd5e200,
1387 0x000018c5, 0xffde0000, 0x000018cd, 0xffde2000,
1388 0x000018d5, 0xffde4000, 0x000018de, 0xffde6100,
1389 0x000018e6, 0xffde8100, 0x000018ee, 0xffdea100,
1390 0x000018f6, 0xffdec200, 0x000018ff, 0xffdee200,
1391 0x00001c00, 0xffe60000, 0x00001c08, 0xffe62000,
1392 0x00001c10, 0xffe64000, 0x00001c18, 0xffe66100,
1393 0x00001c20, 0xffe68100, 0x00001c29, 0xffe6a100,
1394 0x00001c31, 0xffe6c200, 0x00001c39, 0xffe6e200,
1395 0x00001c41, 0xffee0000, 0x00001c4a, 0xffee2000,
1396 0x00001c52, 0xffee4000, 0x00001c5a, 0xffee6100,
1397 0x00001c62, 0xffee8100, 0x00001c6a, 0xffeea100,
1398 0x00001c73, 0xffeec200, 0x00001c7b, 0xffeee200,
1399 0x00001c83, 0xfff60000, 0x00001c8b, 0xfff62000,
1400 0x00001c94, 0xfff64000, 0x00001c9c, 0xfff66100,
1401 0x00001ca4, 0xfff68100, 0x00001cac, 0xfff6a100,
1402 0x00001cb4, 0xfff6c200, 0x00001cbd, 0xfff6e200,
1403 0x00001cc5, 0xffff0000, 0x00001ccd, 0xffff2000,
1404 0x00001cd5, 0xffff4000, 0x00001cde, 0xffff6100,
1405 0x00001ce6, 0xffff8100, 0x00001cee, 0xffffa100,
1406 0x00001cf6, 0xffffc200, 0x00001cff, 0xffffe200
1407};
1408static void Blit_RGB565_ARGB8888(SDL_BlitInfo *info)
1409{
1410 Blit_RGB565_32(info, RGB565_ARGB8888_LUT);
1411}
1412
1413/* Special optimized blit for RGB 5-6-5 --> ABGR 8-8-8-8 */
1414static const Uint32 RGB565_ABGR8888_LUT[512] = {
1415 0xff000000, 0x00000000, 0xff080000, 0x00002000,
1416 0xff100000, 0x00004000, 0xff180000, 0x00006100,
1417 0xff200000, 0x00008100, 0xff290000, 0x0000a100,
1418 0xff310000, 0x0000c200, 0xff390000, 0x0000e200,
1419 0xff410000, 0x00000008, 0xff4a0000, 0x00002008,
1420 0xff520000, 0x00004008, 0xff5a0000, 0x00006108,
1421 0xff620000, 0x00008108, 0xff6a0000, 0x0000a108,
1422 0xff730000, 0x0000c208, 0xff7b0000, 0x0000e208,
1423 0xff830000, 0x00000010, 0xff8b0000, 0x00002010,
1424 0xff940000, 0x00004010, 0xff9c0000, 0x00006110,
1425 0xffa40000, 0x00008110, 0xffac0000, 0x0000a110,
1426 0xffb40000, 0x0000c210, 0xffbd0000, 0x0000e210,
1427 0xffc50000, 0x00000018, 0xffcd0000, 0x00002018,
1428 0xffd50000, 0x00004018, 0xffde0000, 0x00006118,
1429 0xffe60000, 0x00008118, 0xffee0000, 0x0000a118,
1430 0xfff60000, 0x0000c218, 0xffff0000, 0x0000e218,
1431 0xff000400, 0x00000020, 0xff080400, 0x00002020,
1432 0xff100400, 0x00004020, 0xff180400, 0x00006120,
1433 0xff200400, 0x00008120, 0xff290400, 0x0000a120,
1434 0xff310400, 0x0000c220, 0xff390400, 0x0000e220,
1435 0xff410400, 0x00000029, 0xff4a0400, 0x00002029,
1436 0xff520400, 0x00004029, 0xff5a0400, 0x00006129,
1437 0xff620400, 0x00008129, 0xff6a0400, 0x0000a129,
1438 0xff730400, 0x0000c229, 0xff7b0400, 0x0000e229,
1439 0xff830400, 0x00000031, 0xff8b0400, 0x00002031,
1440 0xff940400, 0x00004031, 0xff9c0400, 0x00006131,
1441 0xffa40400, 0x00008131, 0xffac0400, 0x0000a131,
1442 0xffb40400, 0x0000c231, 0xffbd0400, 0x0000e231,
1443 0xffc50400, 0x00000039, 0xffcd0400, 0x00002039,
1444 0xffd50400, 0x00004039, 0xffde0400, 0x00006139,
1445 0xffe60400, 0x00008139, 0xffee0400, 0x0000a139,
1446 0xfff60400, 0x0000c239, 0xffff0400, 0x0000e239,
1447 0xff000800, 0x00000041, 0xff080800, 0x00002041,
1448 0xff100800, 0x00004041, 0xff180800, 0x00006141,
1449 0xff200800, 0x00008141, 0xff290800, 0x0000a141,
1450 0xff310800, 0x0000c241, 0xff390800, 0x0000e241,
1451 0xff410800, 0x0000004a, 0xff4a0800, 0x0000204a,
1452 0xff520800, 0x0000404a, 0xff5a0800, 0x0000614a,
1453 0xff620800, 0x0000814a, 0xff6a0800, 0x0000a14a,
1454 0xff730800, 0x0000c24a, 0xff7b0800, 0x0000e24a,
1455 0xff830800, 0x00000052, 0xff8b0800, 0x00002052,
1456 0xff940800, 0x00004052, 0xff9c0800, 0x00006152,
1457 0xffa40800, 0x00008152, 0xffac0800, 0x0000a152,
1458 0xffb40800, 0x0000c252, 0xffbd0800, 0x0000e252,
1459 0xffc50800, 0x0000005a, 0xffcd0800, 0x0000205a,
1460 0xffd50800, 0x0000405a, 0xffde0800, 0x0000615a,
1461 0xffe60800, 0x0000815a, 0xffee0800, 0x0000a15a,
1462 0xfff60800, 0x0000c25a, 0xffff0800, 0x0000e25a,
1463 0xff000c00, 0x00000062, 0xff080c00, 0x00002062,
1464 0xff100c00, 0x00004062, 0xff180c00, 0x00006162,
1465 0xff200c00, 0x00008162, 0xff290c00, 0x0000a162,
1466 0xff310c00, 0x0000c262, 0xff390c00, 0x0000e262,
1467 0xff410c00, 0x0000006a, 0xff4a0c00, 0x0000206a,
1468 0xff520c00, 0x0000406a, 0xff5a0c00, 0x0000616a,
1469 0xff620c00, 0x0000816a, 0xff6a0c00, 0x0000a16a,
1470 0xff730c00, 0x0000c26a, 0xff7b0c00, 0x0000e26a,
1471 0xff830c00, 0x00000073, 0xff8b0c00, 0x00002073,
1472 0xff940c00, 0x00004073, 0xff9c0c00, 0x00006173,
1473 0xffa40c00, 0x00008173, 0xffac0c00, 0x0000a173,
1474 0xffb40c00, 0x0000c273, 0xffbd0c00, 0x0000e273,
1475 0xffc50c00, 0x0000007b, 0xffcd0c00, 0x0000207b,
1476 0xffd50c00, 0x0000407b, 0xffde0c00, 0x0000617b,
1477 0xffe60c00, 0x0000817b, 0xffee0c00, 0x0000a17b,
1478 0xfff60c00, 0x0000c27b, 0xffff0c00, 0x0000e27b,
1479 0xff001000, 0x00000083, 0xff081000, 0x00002083,
1480 0xff101000, 0x00004083, 0xff181000, 0x00006183,
1481 0xff201000, 0x00008183, 0xff291000, 0x0000a183,
1482 0xff311000, 0x0000c283, 0xff391000, 0x0000e283,
1483 0xff411000, 0x0000008b, 0xff4a1000, 0x0000208b,
1484 0xff521000, 0x0000408b, 0xff5a1000, 0x0000618b,
1485 0xff621000, 0x0000818b, 0xff6a1000, 0x0000a18b,
1486 0xff731000, 0x0000c28b, 0xff7b1000, 0x0000e28b,
1487 0xff831000, 0x00000094, 0xff8b1000, 0x00002094,
1488 0xff941000, 0x00004094, 0xff9c1000, 0x00006194,
1489 0xffa41000, 0x00008194, 0xffac1000, 0x0000a194,
1490 0xffb41000, 0x0000c294, 0xffbd1000, 0x0000e294,
1491 0xffc51000, 0x0000009c, 0xffcd1000, 0x0000209c,
1492 0xffd51000, 0x0000409c, 0xffde1000, 0x0000619c,
1493 0xffe61000, 0x0000819c, 0xffee1000, 0x0000a19c,
1494 0xfff61000, 0x0000c29c, 0xffff1000, 0x0000e29c,
1495 0xff001400, 0x000000a4, 0xff081400, 0x000020a4,
1496 0xff101400, 0x000040a4, 0xff181400, 0x000061a4,
1497 0xff201400, 0x000081a4, 0xff291400, 0x0000a1a4,
1498 0xff311400, 0x0000c2a4, 0xff391400, 0x0000e2a4,
1499 0xff411400, 0x000000ac, 0xff4a1400, 0x000020ac,
1500 0xff521400, 0x000040ac, 0xff5a1400, 0x000061ac,
1501 0xff621400, 0x000081ac, 0xff6a1400, 0x0000a1ac,
1502 0xff731400, 0x0000c2ac, 0xff7b1400, 0x0000e2ac,
1503 0xff831400, 0x000000b4, 0xff8b1400, 0x000020b4,
1504 0xff941400, 0x000040b4, 0xff9c1400, 0x000061b4,
1505 0xffa41400, 0x000081b4, 0xffac1400, 0x0000a1b4,
1506 0xffb41400, 0x0000c2b4, 0xffbd1400, 0x0000e2b4,
1507 0xffc51400, 0x000000bd, 0xffcd1400, 0x000020bd,
1508 0xffd51400, 0x000040bd, 0xffde1400, 0x000061bd,
1509 0xffe61400, 0x000081bd, 0xffee1400, 0x0000a1bd,
1510 0xfff61400, 0x0000c2bd, 0xffff1400, 0x0000e2bd,
1511 0xff001800, 0x000000c5, 0xff081800, 0x000020c5,
1512 0xff101800, 0x000040c5, 0xff181800, 0x000061c5,
1513 0xff201800, 0x000081c5, 0xff291800, 0x0000a1c5,
1514 0xff311800, 0x0000c2c5, 0xff391800, 0x0000e2c5,
1515 0xff411800, 0x000000cd, 0xff4a1800, 0x000020cd,
1516 0xff521800, 0x000040cd, 0xff5a1800, 0x000061cd,
1517 0xff621800, 0x000081cd, 0xff6a1800, 0x0000a1cd,
1518 0xff731800, 0x0000c2cd, 0xff7b1800, 0x0000e2cd,
1519 0xff831800, 0x000000d5, 0xff8b1800, 0x000020d5,
1520 0xff941800, 0x000040d5, 0xff9c1800, 0x000061d5,
1521 0xffa41800, 0x000081d5, 0xffac1800, 0x0000a1d5,
1522 0xffb41800, 0x0000c2d5, 0xffbd1800, 0x0000e2d5,
1523 0xffc51800, 0x000000de, 0xffcd1800, 0x000020de,
1524 0xffd51800, 0x000040de, 0xffde1800, 0x000061de,
1525 0xffe61800, 0x000081de, 0xffee1800, 0x0000a1de,
1526 0xfff61800, 0x0000c2de, 0xffff1800, 0x0000e2de,
1527 0xff001c00, 0x000000e6, 0xff081c00, 0x000020e6,
1528 0xff101c00, 0x000040e6, 0xff181c00, 0x000061e6,
1529 0xff201c00, 0x000081e6, 0xff291c00, 0x0000a1e6,
1530 0xff311c00, 0x0000c2e6, 0xff391c00, 0x0000e2e6,
1531 0xff411c00, 0x000000ee, 0xff4a1c00, 0x000020ee,
1532 0xff521c00, 0x000040ee, 0xff5a1c00, 0x000061ee,
1533 0xff621c00, 0x000081ee, 0xff6a1c00, 0x0000a1ee,
1534 0xff731c00, 0x0000c2ee, 0xff7b1c00, 0x0000e2ee,
1535 0xff831c00, 0x000000f6, 0xff8b1c00, 0x000020f6,
1536 0xff941c00, 0x000040f6, 0xff9c1c00, 0x000061f6,
1537 0xffa41c00, 0x000081f6, 0xffac1c00, 0x0000a1f6,
1538 0xffb41c00, 0x0000c2f6, 0xffbd1c00, 0x0000e2f6,
1539 0xffc51c00, 0x000000ff, 0xffcd1c00, 0x000020ff,
1540 0xffd51c00, 0x000040ff, 0xffde1c00, 0x000061ff,
1541 0xffe61c00, 0x000081ff, 0xffee1c00, 0x0000a1ff,
1542 0xfff61c00, 0x0000c2ff, 0xffff1c00, 0x0000e2ff
1543};
1544static void Blit_RGB565_ABGR8888(SDL_BlitInfo *info)
1545{
1546 Blit_RGB565_32(info, RGB565_ABGR8888_LUT);
1547}
1548
1549/* Special optimized blit for RGB 5-6-5 --> RGBA 8-8-8-8 */
1550static const Uint32 RGB565_RGBA8888_LUT[512] = {
1551 0x000000ff, 0x00000000, 0x000008ff, 0x00200000,
1552 0x000010ff, 0x00400000, 0x000018ff, 0x00610000,
1553 0x000020ff, 0x00810000, 0x000029ff, 0x00a10000,
1554 0x000031ff, 0x00c20000, 0x000039ff, 0x00e20000,
1555 0x000041ff, 0x08000000, 0x00004aff, 0x08200000,
1556 0x000052ff, 0x08400000, 0x00005aff, 0x08610000,
1557 0x000062ff, 0x08810000, 0x00006aff, 0x08a10000,
1558 0x000073ff, 0x08c20000, 0x00007bff, 0x08e20000,
1559 0x000083ff, 0x10000000, 0x00008bff, 0x10200000,
1560 0x000094ff, 0x10400000, 0x00009cff, 0x10610000,
1561 0x0000a4ff, 0x10810000, 0x0000acff, 0x10a10000,
1562 0x0000b4ff, 0x10c20000, 0x0000bdff, 0x10e20000,
1563 0x0000c5ff, 0x18000000, 0x0000cdff, 0x18200000,
1564 0x0000d5ff, 0x18400000, 0x0000deff, 0x18610000,
1565 0x0000e6ff, 0x18810000, 0x0000eeff, 0x18a10000,
1566 0x0000f6ff, 0x18c20000, 0x0000ffff, 0x18e20000,
1567 0x000400ff, 0x20000000, 0x000408ff, 0x20200000,
1568 0x000410ff, 0x20400000, 0x000418ff, 0x20610000,
1569 0x000420ff, 0x20810000, 0x000429ff, 0x20a10000,
1570 0x000431ff, 0x20c20000, 0x000439ff, 0x20e20000,
1571 0x000441ff, 0x29000000, 0x00044aff, 0x29200000,
1572 0x000452ff, 0x29400000, 0x00045aff, 0x29610000,
1573 0x000462ff, 0x29810000, 0x00046aff, 0x29a10000,
1574 0x000473ff, 0x29c20000, 0x00047bff, 0x29e20000,
1575 0x000483ff, 0x31000000, 0x00048bff, 0x31200000,
1576 0x000494ff, 0x31400000, 0x00049cff, 0x31610000,
1577 0x0004a4ff, 0x31810000, 0x0004acff, 0x31a10000,
1578 0x0004b4ff, 0x31c20000, 0x0004bdff, 0x31e20000,
1579 0x0004c5ff, 0x39000000, 0x0004cdff, 0x39200000,
1580 0x0004d5ff, 0x39400000, 0x0004deff, 0x39610000,
1581 0x0004e6ff, 0x39810000, 0x0004eeff, 0x39a10000,
1582 0x0004f6ff, 0x39c20000, 0x0004ffff, 0x39e20000,
1583 0x000800ff, 0x41000000, 0x000808ff, 0x41200000,
1584 0x000810ff, 0x41400000, 0x000818ff, 0x41610000,
1585 0x000820ff, 0x41810000, 0x000829ff, 0x41a10000,
1586 0x000831ff, 0x41c20000, 0x000839ff, 0x41e20000,
1587 0x000841ff, 0x4a000000, 0x00084aff, 0x4a200000,
1588 0x000852ff, 0x4a400000, 0x00085aff, 0x4a610000,
1589 0x000862ff, 0x4a810000, 0x00086aff, 0x4aa10000,
1590 0x000873ff, 0x4ac20000, 0x00087bff, 0x4ae20000,
1591 0x000883ff, 0x52000000, 0x00088bff, 0x52200000,
1592 0x000894ff, 0x52400000, 0x00089cff, 0x52610000,
1593 0x0008a4ff, 0x52810000, 0x0008acff, 0x52a10000,
1594 0x0008b4ff, 0x52c20000, 0x0008bdff, 0x52e20000,
1595 0x0008c5ff, 0x5a000000, 0x0008cdff, 0x5a200000,
1596 0x0008d5ff, 0x5a400000, 0x0008deff, 0x5a610000,
1597 0x0008e6ff, 0x5a810000, 0x0008eeff, 0x5aa10000,
1598 0x0008f6ff, 0x5ac20000, 0x0008ffff, 0x5ae20000,
1599 0x000c00ff, 0x62000000, 0x000c08ff, 0x62200000,
1600 0x000c10ff, 0x62400000, 0x000c18ff, 0x62610000,
1601 0x000c20ff, 0x62810000, 0x000c29ff, 0x62a10000,
1602 0x000c31ff, 0x62c20000, 0x000c39ff, 0x62e20000,
1603 0x000c41ff, 0x6a000000, 0x000c4aff, 0x6a200000,
1604 0x000c52ff, 0x6a400000, 0x000c5aff, 0x6a610000,
1605 0x000c62ff, 0x6a810000, 0x000c6aff, 0x6aa10000,
1606 0x000c73ff, 0x6ac20000, 0x000c7bff, 0x6ae20000,
1607 0x000c83ff, 0x73000000, 0x000c8bff, 0x73200000,
1608 0x000c94ff, 0x73400000, 0x000c9cff, 0x73610000,
1609 0x000ca4ff, 0x73810000, 0x000cacff, 0x73a10000,
1610 0x000cb4ff, 0x73c20000, 0x000cbdff, 0x73e20000,
1611 0x000cc5ff, 0x7b000000, 0x000ccdff, 0x7b200000,
1612 0x000cd5ff, 0x7b400000, 0x000cdeff, 0x7b610000,
1613 0x000ce6ff, 0x7b810000, 0x000ceeff, 0x7ba10000,
1614 0x000cf6ff, 0x7bc20000, 0x000cffff, 0x7be20000,
1615 0x001000ff, 0x83000000, 0x001008ff, 0x83200000,
1616 0x001010ff, 0x83400000, 0x001018ff, 0x83610000,
1617 0x001020ff, 0x83810000, 0x001029ff, 0x83a10000,
1618 0x001031ff, 0x83c20000, 0x001039ff, 0x83e20000,
1619 0x001041ff, 0x8b000000, 0x00104aff, 0x8b200000,
1620 0x001052ff, 0x8b400000, 0x00105aff, 0x8b610000,
1621 0x001062ff, 0x8b810000, 0x00106aff, 0x8ba10000,
1622 0x001073ff, 0x8bc20000, 0x00107bff, 0x8be20000,
1623 0x001083ff, 0x94000000, 0x00108bff, 0x94200000,
1624 0x001094ff, 0x94400000, 0x00109cff, 0x94610000,
1625 0x0010a4ff, 0x94810000, 0x0010acff, 0x94a10000,
1626 0x0010b4ff, 0x94c20000, 0x0010bdff, 0x94e20000,
1627 0x0010c5ff, 0x9c000000, 0x0010cdff, 0x9c200000,
1628 0x0010d5ff, 0x9c400000, 0x0010deff, 0x9c610000,
1629 0x0010e6ff, 0x9c810000, 0x0010eeff, 0x9ca10000,
1630 0x0010f6ff, 0x9cc20000, 0x0010ffff, 0x9ce20000,
1631 0x001400ff, 0xa4000000, 0x001408ff, 0xa4200000,
1632 0x001410ff, 0xa4400000, 0x001418ff, 0xa4610000,
1633 0x001420ff, 0xa4810000, 0x001429ff, 0xa4a10000,
1634 0x001431ff, 0xa4c20000, 0x001439ff, 0xa4e20000,
1635 0x001441ff, 0xac000000, 0x00144aff, 0xac200000,
1636 0x001452ff, 0xac400000, 0x00145aff, 0xac610000,
1637 0x001462ff, 0xac810000, 0x00146aff, 0xaca10000,
1638 0x001473ff, 0xacc20000, 0x00147bff, 0xace20000,
1639 0x001483ff, 0xb4000000, 0x00148bff, 0xb4200000,
1640 0x001494ff, 0xb4400000, 0x00149cff, 0xb4610000,
1641 0x0014a4ff, 0xb4810000, 0x0014acff, 0xb4a10000,
1642 0x0014b4ff, 0xb4c20000, 0x0014bdff, 0xb4e20000,
1643 0x0014c5ff, 0xbd000000, 0x0014cdff, 0xbd200000,
1644 0x0014d5ff, 0xbd400000, 0x0014deff, 0xbd610000,
1645 0x0014e6ff, 0xbd810000, 0x0014eeff, 0xbda10000,
1646 0x0014f6ff, 0xbdc20000, 0x0014ffff, 0xbde20000,
1647 0x001800ff, 0xc5000000, 0x001808ff, 0xc5200000,
1648 0x001810ff, 0xc5400000, 0x001818ff, 0xc5610000,
1649 0x001820ff, 0xc5810000, 0x001829ff, 0xc5a10000,
1650 0x001831ff, 0xc5c20000, 0x001839ff, 0xc5e20000,
1651 0x001841ff, 0xcd000000, 0x00184aff, 0xcd200000,
1652 0x001852ff, 0xcd400000, 0x00185aff, 0xcd610000,
1653 0x001862ff, 0xcd810000, 0x00186aff, 0xcda10000,
1654 0x001873ff, 0xcdc20000, 0x00187bff, 0xcde20000,
1655 0x001883ff, 0xd5000000, 0x00188bff, 0xd5200000,
1656 0x001894ff, 0xd5400000, 0x00189cff, 0xd5610000,
1657 0x0018a4ff, 0xd5810000, 0x0018acff, 0xd5a10000,
1658 0x0018b4ff, 0xd5c20000, 0x0018bdff, 0xd5e20000,
1659 0x0018c5ff, 0xde000000, 0x0018cdff, 0xde200000,
1660 0x0018d5ff, 0xde400000, 0x0018deff, 0xde610000,
1661 0x0018e6ff, 0xde810000, 0x0018eeff, 0xdea10000,
1662 0x0018f6ff, 0xdec20000, 0x0018ffff, 0xdee20000,
1663 0x001c00ff, 0xe6000000, 0x001c08ff, 0xe6200000,
1664 0x001c10ff, 0xe6400000, 0x001c18ff, 0xe6610000,
1665 0x001c20ff, 0xe6810000, 0x001c29ff, 0xe6a10000,
1666 0x001c31ff, 0xe6c20000, 0x001c39ff, 0xe6e20000,
1667 0x001c41ff, 0xee000000, 0x001c4aff, 0xee200000,
1668 0x001c52ff, 0xee400000, 0x001c5aff, 0xee610000,
1669 0x001c62ff, 0xee810000, 0x001c6aff, 0xeea10000,
1670 0x001c73ff, 0xeec20000, 0x001c7bff, 0xeee20000,
1671 0x001c83ff, 0xf6000000, 0x001c8bff, 0xf6200000,
1672 0x001c94ff, 0xf6400000, 0x001c9cff, 0xf6610000,
1673 0x001ca4ff, 0xf6810000, 0x001cacff, 0xf6a10000,
1674 0x001cb4ff, 0xf6c20000, 0x001cbdff, 0xf6e20000,
1675 0x001cc5ff, 0xff000000, 0x001ccdff, 0xff200000,
1676 0x001cd5ff, 0xff400000, 0x001cdeff, 0xff610000,
1677 0x001ce6ff, 0xff810000, 0x001ceeff, 0xffa10000,
1678 0x001cf6ff, 0xffc20000, 0x001cffff, 0xffe20000,
1679};
1680static void Blit_RGB565_RGBA8888(SDL_BlitInfo *info)
1681{
1682 Blit_RGB565_32(info, RGB565_RGBA8888_LUT);
1683}
1684
1685/* Special optimized blit for RGB 5-6-5 --> BGRA 8-8-8-8 */
1686static const Uint32 RGB565_BGRA8888_LUT[512] = {
1687 0x00000000, 0x000000ff, 0x08000000, 0x002000ff,
1688 0x10000000, 0x004000ff, 0x18000000, 0x006100ff,
1689 0x20000000, 0x008100ff, 0x29000000, 0x00a100ff,
1690 0x31000000, 0x00c200ff, 0x39000000, 0x00e200ff,
1691 0x41000000, 0x000008ff, 0x4a000000, 0x002008ff,
1692 0x52000000, 0x004008ff, 0x5a000000, 0x006108ff,
1693 0x62000000, 0x008108ff, 0x6a000000, 0x00a108ff,
1694 0x73000000, 0x00c208ff, 0x7b000000, 0x00e208ff,
1695 0x83000000, 0x000010ff, 0x8b000000, 0x002010ff,
1696 0x94000000, 0x004010ff, 0x9c000000, 0x006110ff,
1697 0xa4000000, 0x008110ff, 0xac000000, 0x00a110ff,
1698 0xb4000000, 0x00c210ff, 0xbd000000, 0x00e210ff,
1699 0xc5000000, 0x000018ff, 0xcd000000, 0x002018ff,
1700 0xd5000000, 0x004018ff, 0xde000000, 0x006118ff,
1701 0xe6000000, 0x008118ff, 0xee000000, 0x00a118ff,
1702 0xf6000000, 0x00c218ff, 0xff000000, 0x00e218ff,
1703 0x00040000, 0x000020ff, 0x08040000, 0x002020ff,
1704 0x10040000, 0x004020ff, 0x18040000, 0x006120ff,
1705 0x20040000, 0x008120ff, 0x29040000, 0x00a120ff,
1706 0x31040000, 0x00c220ff, 0x39040000, 0x00e220ff,
1707 0x41040000, 0x000029ff, 0x4a040000, 0x002029ff,
1708 0x52040000, 0x004029ff, 0x5a040000, 0x006129ff,
1709 0x62040000, 0x008129ff, 0x6a040000, 0x00a129ff,
1710 0x73040000, 0x00c229ff, 0x7b040000, 0x00e229ff,
1711 0x83040000, 0x000031ff, 0x8b040000, 0x002031ff,
1712 0x94040000, 0x004031ff, 0x9c040000, 0x006131ff,
1713 0xa4040000, 0x008131ff, 0xac040000, 0x00a131ff,
1714 0xb4040000, 0x00c231ff, 0xbd040000, 0x00e231ff,
1715 0xc5040000, 0x000039ff, 0xcd040000, 0x002039ff,
1716 0xd5040000, 0x004039ff, 0xde040000, 0x006139ff,
1717 0xe6040000, 0x008139ff, 0xee040000, 0x00a139ff,
1718 0xf6040000, 0x00c239ff, 0xff040000, 0x00e239ff,
1719 0x00080000, 0x000041ff, 0x08080000, 0x002041ff,
1720 0x10080000, 0x004041ff, 0x18080000, 0x006141ff,
1721 0x20080000, 0x008141ff, 0x29080000, 0x00a141ff,
1722 0x31080000, 0x00c241ff, 0x39080000, 0x00e241ff,
1723 0x41080000, 0x00004aff, 0x4a080000, 0x00204aff,
1724 0x52080000, 0x00404aff, 0x5a080000, 0x00614aff,
1725 0x62080000, 0x00814aff, 0x6a080000, 0x00a14aff,
1726 0x73080000, 0x00c24aff, 0x7b080000, 0x00e24aff,
1727 0x83080000, 0x000052ff, 0x8b080000, 0x002052ff,
1728 0x94080000, 0x004052ff, 0x9c080000, 0x006152ff,
1729 0xa4080000, 0x008152ff, 0xac080000, 0x00a152ff,
1730 0xb4080000, 0x00c252ff, 0xbd080000, 0x00e252ff,
1731 0xc5080000, 0x00005aff, 0xcd080000, 0x00205aff,
1732 0xd5080000, 0x00405aff, 0xde080000, 0x00615aff,
1733 0xe6080000, 0x00815aff, 0xee080000, 0x00a15aff,
1734 0xf6080000, 0x00c25aff, 0xff080000, 0x00e25aff,
1735 0x000c0000, 0x000062ff, 0x080c0000, 0x002062ff,
1736 0x100c0000, 0x004062ff, 0x180c0000, 0x006162ff,
1737 0x200c0000, 0x008162ff, 0x290c0000, 0x00a162ff,
1738 0x310c0000, 0x00c262ff, 0x390c0000, 0x00e262ff,
1739 0x410c0000, 0x00006aff, 0x4a0c0000, 0x00206aff,
1740 0x520c0000, 0x00406aff, 0x5a0c0000, 0x00616aff,
1741 0x620c0000, 0x00816aff, 0x6a0c0000, 0x00a16aff,
1742 0x730c0000, 0x00c26aff, 0x7b0c0000, 0x00e26aff,
1743 0x830c0000, 0x000073ff, 0x8b0c0000, 0x002073ff,
1744 0x940c0000, 0x004073ff, 0x9c0c0000, 0x006173ff,
1745 0xa40c0000, 0x008173ff, 0xac0c0000, 0x00a173ff,
1746 0xb40c0000, 0x00c273ff, 0xbd0c0000, 0x00e273ff,
1747 0xc50c0000, 0x00007bff, 0xcd0c0000, 0x00207bff,
1748 0xd50c0000, 0x00407bff, 0xde0c0000, 0x00617bff,
1749 0xe60c0000, 0x00817bff, 0xee0c0000, 0x00a17bff,
1750 0xf60c0000, 0x00c27bff, 0xff0c0000, 0x00e27bff,
1751 0x00100000, 0x000083ff, 0x08100000, 0x002083ff,
1752 0x10100000, 0x004083ff, 0x18100000, 0x006183ff,
1753 0x20100000, 0x008183ff, 0x29100000, 0x00a183ff,
1754 0x31100000, 0x00c283ff, 0x39100000, 0x00e283ff,
1755 0x41100000, 0x00008bff, 0x4a100000, 0x00208bff,
1756 0x52100000, 0x00408bff, 0x5a100000, 0x00618bff,
1757 0x62100000, 0x00818bff, 0x6a100000, 0x00a18bff,
1758 0x73100000, 0x00c28bff, 0x7b100000, 0x00e28bff,
1759 0x83100000, 0x000094ff, 0x8b100000, 0x002094ff,
1760 0x94100000, 0x004094ff, 0x9c100000, 0x006194ff,
1761 0xa4100000, 0x008194ff, 0xac100000, 0x00a194ff,
1762 0xb4100000, 0x00c294ff, 0xbd100000, 0x00e294ff,
1763 0xc5100000, 0x00009cff, 0xcd100000, 0x00209cff,
1764 0xd5100000, 0x00409cff, 0xde100000, 0x00619cff,
1765 0xe6100000, 0x00819cff, 0xee100000, 0x00a19cff,
1766 0xf6100000, 0x00c29cff, 0xff100000, 0x00e29cff,
1767 0x00140000, 0x0000a4ff, 0x08140000, 0x0020a4ff,
1768 0x10140000, 0x0040a4ff, 0x18140000, 0x0061a4ff,
1769 0x20140000, 0x0081a4ff, 0x29140000, 0x00a1a4ff,
1770 0x31140000, 0x00c2a4ff, 0x39140000, 0x00e2a4ff,
1771 0x41140000, 0x0000acff, 0x4a140000, 0x0020acff,
1772 0x52140000, 0x0040acff, 0x5a140000, 0x0061acff,
1773 0x62140000, 0x0081acff, 0x6a140000, 0x00a1acff,
1774 0x73140000, 0x00c2acff, 0x7b140000, 0x00e2acff,
1775 0x83140000, 0x0000b4ff, 0x8b140000, 0x0020b4ff,
1776 0x94140000, 0x0040b4ff, 0x9c140000, 0x0061b4ff,
1777 0xa4140000, 0x0081b4ff, 0xac140000, 0x00a1b4ff,
1778 0xb4140000, 0x00c2b4ff, 0xbd140000, 0x00e2b4ff,
1779 0xc5140000, 0x0000bdff, 0xcd140000, 0x0020bdff,
1780 0xd5140000, 0x0040bdff, 0xde140000, 0x0061bdff,
1781 0xe6140000, 0x0081bdff, 0xee140000, 0x00a1bdff,
1782 0xf6140000, 0x00c2bdff, 0xff140000, 0x00e2bdff,
1783 0x00180000, 0x0000c5ff, 0x08180000, 0x0020c5ff,
1784 0x10180000, 0x0040c5ff, 0x18180000, 0x0061c5ff,
1785 0x20180000, 0x0081c5ff, 0x29180000, 0x00a1c5ff,
1786 0x31180000, 0x00c2c5ff, 0x39180000, 0x00e2c5ff,
1787 0x41180000, 0x0000cdff, 0x4a180000, 0x0020cdff,
1788 0x52180000, 0x0040cdff, 0x5a180000, 0x0061cdff,
1789 0x62180000, 0x0081cdff, 0x6a180000, 0x00a1cdff,
1790 0x73180000, 0x00c2cdff, 0x7b180000, 0x00e2cdff,
1791 0x83180000, 0x0000d5ff, 0x8b180000, 0x0020d5ff,
1792 0x94180000, 0x0040d5ff, 0x9c180000, 0x0061d5ff,
1793 0xa4180000, 0x0081d5ff, 0xac180000, 0x00a1d5ff,
1794 0xb4180000, 0x00c2d5ff, 0xbd180000, 0x00e2d5ff,
1795 0xc5180000, 0x0000deff, 0xcd180000, 0x0020deff,
1796 0xd5180000, 0x0040deff, 0xde180000, 0x0061deff,
1797 0xe6180000, 0x0081deff, 0xee180000, 0x00a1deff,
1798 0xf6180000, 0x00c2deff, 0xff180000, 0x00e2deff,
1799 0x001c0000, 0x0000e6ff, 0x081c0000, 0x0020e6ff,
1800 0x101c0000, 0x0040e6ff, 0x181c0000, 0x0061e6ff,
1801 0x201c0000, 0x0081e6ff, 0x291c0000, 0x00a1e6ff,
1802 0x311c0000, 0x00c2e6ff, 0x391c0000, 0x00e2e6ff,
1803 0x411c0000, 0x0000eeff, 0x4a1c0000, 0x0020eeff,
1804 0x521c0000, 0x0040eeff, 0x5a1c0000, 0x0061eeff,
1805 0x621c0000, 0x0081eeff, 0x6a1c0000, 0x00a1eeff,
1806 0x731c0000, 0x00c2eeff, 0x7b1c0000, 0x00e2eeff,
1807 0x831c0000, 0x0000f6ff, 0x8b1c0000, 0x0020f6ff,
1808 0x941c0000, 0x0040f6ff, 0x9c1c0000, 0x0061f6ff,
1809 0xa41c0000, 0x0081f6ff, 0xac1c0000, 0x00a1f6ff,
1810 0xb41c0000, 0x00c2f6ff, 0xbd1c0000, 0x00e2f6ff,
1811 0xc51c0000, 0x0000ffff, 0xcd1c0000, 0x0020ffff,
1812 0xd51c0000, 0x0040ffff, 0xde1c0000, 0x0061ffff,
1813 0xe61c0000, 0x0081ffff, 0xee1c0000, 0x00a1ffff,
1814 0xf61c0000, 0x00c2ffff, 0xff1c0000, 0x00e2ffff
1815};
1816static void Blit_RGB565_BGRA8888(SDL_BlitInfo *info)
1817{
1818 Blit_RGB565_32(info, RGB565_BGRA8888_LUT);
1819}
1820
1821/* Special optimized blit for RGB 8-8-8 --> RGB 3-3-2 */
1822#ifndef RGB888_RGB332
1823#define RGB888_RGB332(dst, src) { \
1824 dst = (((src)&0x00E00000)>>16)| \
1825 (((src)&0x0000E000)>>11)| \
1826 (((src)&0x000000C0)>>6); \
1827}
1828#endif
1829static void Blit_RGB888_index8_map(SDL_BlitInfo *info)
1830{
1831#ifndef USE_DUFFS_LOOP
1832 int c;
1833#endif
1834 int Pixel;
1835 int width, height;
1836 Uint32 *src;
1837 const Uint8 *map;
1838 Uint8 *dst;
1839 int srcskip, dstskip;
1840
1841 /* Set up some basic variables */
1842 width = info->d_width;
1843 height = info->d_height;
1844 src = (Uint32 *)info->s_pixels;
1845 srcskip = info->s_skip/4;
1846 dst = info->d_pixels;
1847 dstskip = info->d_skip;
1848 map = info->table;
1849
1850#ifdef USE_DUFFS_LOOP
1851 while ( height-- ) {
1852 DUFFS_LOOP(
1853 RGB888_RGB332(Pixel, *src);
1854 *dst++ = map[Pixel];
1855 ++src;
1856 , width);
1857 src += srcskip;
1858 dst += dstskip;
1859 }
1860#else
1861 while ( height-- ) {
1862 for ( c=width/4; c; --c ) {
1863 /* Pack RGB into 8bit pixel */
1864 RGB888_RGB332(Pixel, *src);
1865 *dst++ = map[Pixel];
1866 ++src;
1867 RGB888_RGB332(Pixel, *src);
1868 *dst++ = map[Pixel];
1869 ++src;
1870 RGB888_RGB332(Pixel, *src);
1871 *dst++ = map[Pixel];
1872 ++src;
1873 RGB888_RGB332(Pixel, *src);
1874 *dst++ = map[Pixel];
1875 ++src;
1876 }
1877 switch ( width & 3 ) {
1878 case 3:
1879 RGB888_RGB332(Pixel, *src);
1880 *dst++ = map[Pixel];
1881 ++src;
1882 case 2:
1883 RGB888_RGB332(Pixel, *src);
1884 *dst++ = map[Pixel];
1885 ++src;
1886 case 1:
1887 RGB888_RGB332(Pixel, *src);
1888 *dst++ = map[Pixel];
1889 ++src;
1890 }
1891 src += srcskip;
1892 dst += dstskip;
1893 }
1894#endif /* USE_DUFFS_LOOP */
1895}
1896static void BlitNto1(SDL_BlitInfo *info)
1897{
1898#ifndef USE_DUFFS_LOOP
1899 int c;
1900#endif
1901 int width, height;
1902 Uint8 *src;
1903 const Uint8 *map;
1904 Uint8 *dst;
1905 int srcskip, dstskip;
1906 int srcbpp;
1907 Uint32 Pixel;
1908 int sR, sG, sB;
1909 SDL_PixelFormat *srcfmt;
1910
1911 /* Set up some basic variables */
1912 width = info->d_width;
1913 height = info->d_height;
1914 src = info->s_pixels;
1915 srcskip = info->s_skip;
1916 dst = info->d_pixels;
1917 dstskip = info->d_skip;
1918 map = info->table;
1919 srcfmt = info->src;
1920 srcbpp = srcfmt->BytesPerPixel;
1921
1922 if ( map == NULL ) {
1923 while ( height-- ) {
1924#ifdef USE_DUFFS_LOOP
1925 DUFFS_LOOP(
1926 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel,
1927 sR, sG, sB);
1928 if ( 1 ) {
1929 /* Pack RGB into 8bit pixel */
1930 *dst = ((sR>>5)<<(3+2))|
1931 ((sG>>5)<<(2)) |
1932 ((sB>>6)<<(0)) ;
1933 }
1934 dst++;
1935 src += srcbpp;
1936 , width);
1937#else
1938 for ( c=width; c; --c ) {
1939 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel,
1940 sR, sG, sB);
1941 if ( 1 ) {
1942 /* Pack RGB into 8bit pixel */
1943 *dst = ((sR>>5)<<(3+2))|
1944 ((sG>>5)<<(2)) |
1945 ((sB>>6)<<(0)) ;
1946 }
1947 dst++;
1948 src += srcbpp;
1949 }
1950#endif
1951 src += srcskip;
1952 dst += dstskip;
1953 }
1954 } else {
1955 while ( height-- ) {
1956#ifdef USE_DUFFS_LOOP
1957 DUFFS_LOOP(
1958 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel,
1959 sR, sG, sB);
1960 if ( 1 ) {
1961 /* Pack RGB into 8bit pixel */
1962 *dst = map[((sR>>5)<<(3+2))|
1963 ((sG>>5)<<(2)) |
1964 ((sB>>6)<<(0)) ];
1965 }
1966 dst++;
1967 src += srcbpp;
1968 , width);
1969#else
1970 for ( c=width; c; --c ) {
1971 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel,
1972 sR, sG, sB);
1973 if ( 1 ) {
1974 /* Pack RGB into 8bit pixel */
1975 *dst = map[((sR>>5)<<(3+2))|
1976 ((sG>>5)<<(2)) |
1977 ((sB>>6)<<(0)) ];
1978 }
1979 dst++;
1980 src += srcbpp;
1981 }
1982#endif /* USE_DUFFS_LOOP */
1983 src += srcskip;
1984 dst += dstskip;
1985 }
1986 }
1987}
1988
1989/* blits 32 bit RGB<->RGBA with both surfaces having the same R,G,B fields */
1990static void Blit4to4MaskAlpha(SDL_BlitInfo *info)
1991{
1992 int width = info->d_width;
1993 int height = info->d_height;
1994 Uint32 *src = (Uint32 *)info->s_pixels;
1995 int srcskip = info->s_skip;
1996 Uint32 *dst = (Uint32 *)info->d_pixels;
1997 int dstskip = info->d_skip;
1998 SDL_PixelFormat *srcfmt = info->src;
1999 SDL_PixelFormat *dstfmt = info->dst;
2000
2001 if (dstfmt->Amask) {
2002 /* RGB->RGBA, SET_ALPHA */
2003 Uint32 mask = (srcfmt->alpha >> dstfmt->Aloss) << dstfmt->Ashift;
2004
2005 while ( height-- ) {
2006 DUFFS_LOOP(
2007 {
2008 *dst = *src | mask;
2009 ++dst;
2010 ++src;
2011 },
2012 width);
2013 src = (Uint32*)((Uint8*)src + srcskip);
2014 dst = (Uint32*)((Uint8*)dst + dstskip);
2015 }
2016 } else {
2017 /* RGBA->RGB, NO_ALPHA */
2018 Uint32 mask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask;
2019
2020 while ( height-- ) {
2021 DUFFS_LOOP(
2022 {
2023 *dst = *src & mask;
2024 ++dst;
2025 ++src;
2026 },
2027 width);
2028 src = (Uint32*)((Uint8*)src + srcskip);
2029 dst = (Uint32*)((Uint8*)dst + dstskip);
2030 }
2031 }
2032}
2033
2034static void BlitNtoN(SDL_BlitInfo *info)
2035{
2036 int width = info->d_width;
2037 int height = info->d_height;
2038 Uint8 *src = info->s_pixels;
2039 int srcskip = info->s_skip;
2040 Uint8 *dst = info->d_pixels;
2041 int dstskip = info->d_skip;
2042 SDL_PixelFormat *srcfmt = info->src;
2043 int srcbpp = srcfmt->BytesPerPixel;
2044 SDL_PixelFormat *dstfmt = info->dst;
2045 int dstbpp = dstfmt->BytesPerPixel;
2046 unsigned alpha = dstfmt->Amask ? srcfmt->alpha : 0;
2047
2048 while ( height-- ) {
2049 DUFFS_LOOP(
2050 {
2051 Uint32 Pixel;
2052 unsigned sR;
2053 unsigned sG;
2054 unsigned sB;
2055 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB);
2056 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, sR, sG, sB, alpha);
2057 dst += dstbpp;
2058 src += srcbpp;
2059 },
2060 width);
2061 src += srcskip;
2062 dst += dstskip;
2063 }
2064}
2065
2066static void BlitNtoNCopyAlpha(SDL_BlitInfo *info)
2067{
2068 int width = info->d_width;
2069 int height = info->d_height;
2070 Uint8 *src = info->s_pixels;
2071 int srcskip = info->s_skip;
2072 Uint8 *dst = info->d_pixels;
2073 int dstskip = info->d_skip;
2074 SDL_PixelFormat *srcfmt = info->src;
2075 int srcbpp = srcfmt->BytesPerPixel;
2076 SDL_PixelFormat *dstfmt = info->dst;
2077 int dstbpp = dstfmt->BytesPerPixel;
2078 int c;
2079
2080 /* FIXME: should map alpha to [0..255] correctly! */
2081 while ( height-- ) {
2082 for ( c=width; c; --c ) {
2083 Uint32 Pixel;
2084 unsigned sR, sG, sB, sA;
2085 DISEMBLE_RGBA(src, srcbpp, srcfmt, Pixel,
2086 sR, sG, sB, sA);
2087 ASSEMBLE_RGBA(dst, dstbpp, dstfmt,
2088 sR, sG, sB, sA);
2089 dst += dstbpp;
2090 src += srcbpp;
2091 }
2092 src += srcskip;
2093 dst += dstskip;
2094 }
2095}
2096
2097static void BlitNto1Key(SDL_BlitInfo *info)
2098{
2099 int width = info->d_width;
2100 int height = info->d_height;
2101 Uint8 *src = info->s_pixels;
2102 int srcskip = info->s_skip;
2103 Uint8 *dst = info->d_pixels;
2104 int dstskip = info->d_skip;
2105 SDL_PixelFormat *srcfmt = info->src;
2106 const Uint8 *palmap = info->table;
2107 Uint32 ckey = srcfmt->colorkey;
2108 Uint32 rgbmask = ~srcfmt->Amask;
2109 int srcbpp;
2110 Uint32 Pixel;
2111 unsigned sR, sG, sB;
2112
2113 /* Set up some basic variables */
2114 srcbpp = srcfmt->BytesPerPixel;
2115 ckey &= rgbmask;
2116
2117 if ( palmap == NULL ) {
2118 while ( height-- ) {
2119 DUFFS_LOOP(
2120 {
2121 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel,
2122 sR, sG, sB);
2123 if ( (Pixel & rgbmask) != ckey ) {
2124 /* Pack RGB into 8bit pixel */
2125 *dst = (Uint8)(((sR>>5)<<(3+2))|
2126 ((sG>>5)<<(2)) |
2127 ((sB>>6)<<(0)));
2128 }
2129 dst++;
2130 src += srcbpp;
2131 },
2132 width);
2133 src += srcskip;
2134 dst += dstskip;
2135 }
2136 } else {
2137 while ( height-- ) {
2138 DUFFS_LOOP(
2139 {
2140 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel,
2141 sR, sG, sB);
2142 if ( (Pixel & rgbmask) != ckey ) {
2143 /* Pack RGB into 8bit pixel */
2144 *dst = (Uint8)palmap[((sR>>5)<<(3+2))|
2145 ((sG>>5)<<(2)) |
2146 ((sB>>6)<<(0)) ];
2147 }
2148 dst++;
2149 src += srcbpp;
2150 },
2151 width);
2152 src += srcskip;
2153 dst += dstskip;
2154 }
2155 }
2156}
2157
2158static void Blit2to2Key(SDL_BlitInfo *info)
2159{
2160 int width = info->d_width;
2161 int height = info->d_height;
2162 Uint16 *srcp = (Uint16 *)info->s_pixels;
2163 int srcskip = info->s_skip;
2164 Uint16 *dstp = (Uint16 *)info->d_pixels;
2165 int dstskip = info->d_skip;
2166 Uint32 ckey = info->src->colorkey;
2167 Uint32 rgbmask = ~info->src->Amask;
2168
2169 /* Set up some basic variables */
2170 srcskip /= 2;
2171 dstskip /= 2;
2172 ckey &= rgbmask;
2173
2174 while ( height-- ) {
2175 DUFFS_LOOP(
2176 {
2177 if ( (*srcp & rgbmask) != ckey ) {
2178 *dstp = *srcp;
2179 }
2180 dstp++;
2181 srcp++;
2182 },
2183 width);
2184 srcp += srcskip;
2185 dstp += dstskip;
2186 }
2187}
2188
2189static void BlitNtoNKey(SDL_BlitInfo *info)
2190{
2191 int width = info->d_width;
2192 int height = info->d_height;
2193 Uint8 *src = info->s_pixels;
2194 int srcskip = info->s_skip;
2195 Uint8 *dst = info->d_pixels;
2196 int dstskip = info->d_skip;
2197 Uint32 ckey = info->src->colorkey;
2198 SDL_PixelFormat *srcfmt = info->src;
2199 SDL_PixelFormat *dstfmt = info->dst;
2200 int srcbpp = srcfmt->BytesPerPixel;
2201 int dstbpp = dstfmt->BytesPerPixel;
2202 unsigned alpha = dstfmt->Amask ? srcfmt->alpha : 0;
2203 Uint32 rgbmask = ~srcfmt->Amask;
2204
2205 /* Set up some basic variables */
2206 ckey &= rgbmask;
2207
2208 while ( height-- ) {
2209 DUFFS_LOOP(
2210 {
2211 Uint32 Pixel;
2212 unsigned sR;
2213 unsigned sG;
2214 unsigned sB;
2215 RETRIEVE_RGB_PIXEL(src, srcbpp, Pixel);
2216 if ( (Pixel & rgbmask) != ckey ) {
2217 RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB);
2218 ASSEMBLE_RGBA(dst, dstbpp, dstfmt,
2219 sR, sG, sB, alpha);
2220 }
2221 dst += dstbpp;
2222 src += srcbpp;
2223 },
2224 width);
2225 src += srcskip;
2226 dst += dstskip;
2227 }
2228}
2229
2230static void BlitNtoNKeyCopyAlpha(SDL_BlitInfo *info)
2231{
2232 int width = info->d_width;
2233 int height = info->d_height;
2234 Uint8 *src = info->s_pixels;
2235 int srcskip = info->s_skip;
2236 Uint8 *dst = info->d_pixels;
2237 int dstskip = info->d_skip;
2238 Uint32 ckey = info->src->colorkey;
2239 SDL_PixelFormat *srcfmt = info->src;
2240 SDL_PixelFormat *dstfmt = info->dst;
2241 Uint32 rgbmask = ~srcfmt->Amask;
2242
2243 Uint8 srcbpp;
2244 Uint8 dstbpp;
2245 Uint32 Pixel;
2246 unsigned sR, sG, sB, sA;
2247
2248 /* Set up some basic variables */
2249 srcbpp = srcfmt->BytesPerPixel;
2250 dstbpp = dstfmt->BytesPerPixel;
2251 ckey &= rgbmask;
2252
2253 /* FIXME: should map alpha to [0..255] correctly! */
2254 while ( height-- ) {
2255 DUFFS_LOOP(
2256 {
2257 DISEMBLE_RGBA(src, srcbpp, srcfmt, Pixel,
2258 sR, sG, sB, sA);
2259 if ( (Pixel & rgbmask) != ckey ) {
2260 ASSEMBLE_RGBA(dst, dstbpp, dstfmt,
2261 sR, sG, sB, sA);
2262 }
2263 dst += dstbpp;
2264 src += srcbpp;
2265 },
2266 width);
2267 src += srcskip;
2268 dst += dstskip;
2269 }
2270}
2271
2272/* Normal N to N optimized blitters */
2273struct blit_table {
2274 Uint32 srcR, srcG, srcB;
2275 int dstbpp;
2276 Uint32 dstR, dstG, dstB;
2277 Uint32 blit_features;
2278 void *aux_data;
2279 SDL_loblit blitfunc;
2280 enum { NO_ALPHA=1, SET_ALPHA=2, COPY_ALPHA=4 } alpha;
2281};
2282static const struct blit_table normal_blit_1[] = {
2283 /* Default for 8-bit RGB source, an invalid combination */
2284 { 0,0,0, 0, 0,0,0, 0, NULL, NULL },
2285};
2286static const struct blit_table normal_blit_2[] = {
2287#if SDL_HERMES_BLITTERS
2288 { 0x0000F800,0x000007E0,0x0000001F, 2, 0x0000001F,0x000007E0,0x0000F800,
2289 0, ConvertX86p16_16BGR565, ConvertX86, NO_ALPHA },
2290 { 0x0000F800,0x000007E0,0x0000001F, 2, 0x00007C00,0x000003E0,0x0000001F,
2291 0, ConvertX86p16_16RGB555, ConvertX86, NO_ALPHA },
2292 { 0x0000F800,0x000007E0,0x0000001F, 2, 0x0000001F,0x000003E0,0x00007C00,
2293 0, ConvertX86p16_16BGR555, ConvertX86, NO_ALPHA },
2294#elif SDL_ALTIVEC_BLITTERS
2295 /* has-altivec */
2296 { 0x0000F800,0x000007E0,0x0000001F, 4, 0x00000000,0x00000000,0x00000000,
2297 2, NULL, Blit_RGB565_32Altivec, NO_ALPHA | COPY_ALPHA | SET_ALPHA },
2298 { 0x00007C00,0x000003E0,0x0000001F, 4, 0x00000000,0x00000000,0x00000000,
2299 2, NULL, Blit_RGB555_32Altivec, NO_ALPHA | COPY_ALPHA | SET_ALPHA },
2300#endif
2301 { 0x0000F800,0x000007E0,0x0000001F, 4, 0x00FF0000,0x0000FF00,0x000000FF,
2302 0, NULL, Blit_RGB565_ARGB8888, SET_ALPHA },
2303 { 0x0000F800,0x000007E0,0x0000001F, 4, 0x000000FF,0x0000FF00,0x00FF0000,
2304 0, NULL, Blit_RGB565_ABGR8888, SET_ALPHA },
2305 { 0x0000F800,0x000007E0,0x0000001F, 4, 0xFF000000,0x00FF0000,0x0000FF00,
2306 0, NULL, Blit_RGB565_RGBA8888, SET_ALPHA },
2307 { 0x0000F800,0x000007E0,0x0000001F, 4, 0x0000FF00,0x00FF0000,0xFF000000,
2308 0, NULL, Blit_RGB565_BGRA8888, SET_ALPHA },
2309
2310 /* Default for 16-bit RGB source, used if no other blitter matches */
2311 { 0,0,0, 0, 0,0,0, 0, NULL, BlitNtoN, 0 }
2312};
2313static const struct blit_table normal_blit_3[] = {
2314 /* Default for 24-bit RGB source, never optimized */
2315 { 0,0,0, 0, 0,0,0, 0, NULL, BlitNtoN, 0 }
2316};
2317static const struct blit_table normal_blit_4[] = {
2318#if SDL_HERMES_BLITTERS
2319 { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000F800,0x000007E0,0x0000001F,
2320 1, ConvertMMXpII32_16RGB565, ConvertMMX, NO_ALPHA },
2321 { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000F800,0x000007E0,0x0000001F,
2322 0, ConvertX86p32_16RGB565, ConvertX86, NO_ALPHA },
2323 { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000001F,0x000007E0,0x0000F800,
2324 1, ConvertMMXpII32_16BGR565, ConvertMMX, NO_ALPHA },
2325 { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000001F,0x000007E0,0x0000F800,
2326 0, ConvertX86p32_16BGR565, ConvertX86, NO_ALPHA },
2327 { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x00007C00,0x000003E0,0x0000001F,
2328 1, ConvertMMXpII32_16RGB555, ConvertMMX, NO_ALPHA },
2329 { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x00007C00,0x000003E0,0x0000001F,
2330 0, ConvertX86p32_16RGB555, ConvertX86, NO_ALPHA },
2331 { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000001F,0x000003E0,0x00007C00,
2332 1, ConvertMMXpII32_16BGR555, ConvertMMX, NO_ALPHA },
2333 { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000001F,0x000003E0,0x00007C00,
2334 0, ConvertX86p32_16BGR555, ConvertX86, NO_ALPHA },
2335 { 0x00FF0000,0x0000FF00,0x000000FF, 3, 0x00FF0000,0x0000FF00,0x000000FF,
2336 1, ConvertMMXpII32_24RGB888, ConvertMMX, NO_ALPHA },
2337 { 0x00FF0000,0x0000FF00,0x000000FF, 3, 0x00FF0000,0x0000FF00,0x000000FF,
2338 0, ConvertX86p32_24RGB888, ConvertX86, NO_ALPHA },
2339 { 0x00FF0000,0x0000FF00,0x000000FF, 3, 0x000000FF,0x0000FF00,0x00FF0000,
2340 0, ConvertX86p32_24BGR888, ConvertX86, NO_ALPHA },
2341 { 0x00FF0000,0x0000FF00,0x000000FF, 4, 0x000000FF,0x0000FF00,0x00FF0000,
2342 0, ConvertX86p32_32BGR888, ConvertX86, NO_ALPHA },
2343 { 0x00FF0000,0x0000FF00,0x000000FF, 4, 0xFF000000,0x00FF0000,0x0000FF00,
2344 0, ConvertX86p32_32RGBA888, ConvertX86, NO_ALPHA },
2345 { 0x00FF0000,0x0000FF00,0x000000FF, 4, 0x0000FF00,0x00FF0000,0xFF000000,
2346 0, ConvertX86p32_32BGRA888, ConvertX86, NO_ALPHA },
2347#else
2348#if SDL_ALTIVEC_BLITTERS
2349 /* has-altivec | dont-use-prefetch */
2350 { 0x00000000,0x00000000,0x00000000, 4, 0x00000000,0x00000000,0x00000000,
2351 6, NULL, ConvertAltivec32to32_noprefetch, NO_ALPHA | COPY_ALPHA | SET_ALPHA },
2352 /* has-altivec */
2353 { 0x00000000,0x00000000,0x00000000, 4, 0x00000000,0x00000000,0x00000000,
2354 2, NULL, ConvertAltivec32to32_prefetch, NO_ALPHA | COPY_ALPHA | SET_ALPHA },
2355 /* has-altivec */
2356 { 0x00000000,0x00000000,0x00000000, 2, 0x0000F800,0x000007E0,0x0000001F,
2357 2, NULL, Blit_RGB888_RGB565Altivec, NO_ALPHA },
2358#endif
2359 { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000F800,0x000007E0,0x0000001F,
2360 0, NULL, Blit_RGB888_RGB565, NO_ALPHA },
2361 { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x00007C00,0x000003E0,0x0000001F,
2362 0, NULL, Blit_RGB888_RGB555, NO_ALPHA },
2363#endif
2364 /* Default for 32-bit RGB source, used if no other blitter matches */
2365 { 0,0,0, 0, 0,0,0, 0, NULL, BlitNtoN, 0 }
2366};
2367static const struct blit_table *normal_blit[] = {
2368 normal_blit_1, normal_blit_2, normal_blit_3, normal_blit_4
2369};
2370
2371/* Mask matches table, or table entry is zero */
2372#define MASKOK(x, y) (((x) == (y)) || ((y) == 0x00000000))
2373
2374SDL_loblit SDL_CalculateBlitN(SDL_Surface *surface, int blit_index)
2375{
2376 struct private_swaccel *sdata;
2377 SDL_PixelFormat *srcfmt;
2378 SDL_PixelFormat *dstfmt;
2379 const struct blit_table *table;
2380 int which;
2381 SDL_loblit blitfun;
2382
2383 /* Set up data for choosing the blit */
2384 sdata = surface->map->sw_data;
2385 srcfmt = surface->format;
2386 dstfmt = surface->map->dst->format;
2387
2388 if ( blit_index & 2 ) {
2389 /* alpha or alpha+colorkey */
2390 return SDL_CalculateAlphaBlit(surface, blit_index);
2391 }
2392
2393 /* We don't support destinations less than 8-bits */
2394 if ( dstfmt->BitsPerPixel < 8 ) {
2395 return(NULL);
2396 }
2397
2398 if(blit_index == 1) {
2399 /* colorkey blit: Here we don't have too many options, mostly
2400 because RLE is the preferred fast way to deal with this.
2401 If a particular case turns out to be useful we'll add it. */
2402
2403 if(srcfmt->BytesPerPixel == 2
2404 && surface->map->identity)
2405 return Blit2to2Key;
2406 else if(dstfmt->BytesPerPixel == 1)
2407 return BlitNto1Key;
2408 else {
2409#if SDL_ALTIVEC_BLITTERS
2410 if((srcfmt->BytesPerPixel == 4) && (dstfmt->BytesPerPixel == 4) && SDL_HasAltiVec()) {
2411 return Blit32to32KeyAltivec;
2412 } else
2413#endif
2414
2415 if(srcfmt->Amask && dstfmt->Amask)
2416 return BlitNtoNKeyCopyAlpha;
2417 else
2418 return BlitNtoNKey;
2419 }
2420 }
2421
2422 blitfun = NULL;
2423 if ( dstfmt->BitsPerPixel == 8 ) {
2424 /* We assume 8-bit destinations are palettized */
2425 if ( (srcfmt->BytesPerPixel == 4) &&
2426 (srcfmt->Rmask == 0x00FF0000) &&
2427 (srcfmt->Gmask == 0x0000FF00) &&
2428 (srcfmt->Bmask == 0x000000FF) ) {
2429 if ( surface->map->table ) {
2430 blitfun = Blit_RGB888_index8_map;
2431 } else {
2432#if SDL_HERMES_BLITTERS
2433 sdata->aux_data = ConvertX86p32_8RGB332;
2434 blitfun = ConvertX86;
2435#else
2436 blitfun = Blit_RGB888_index8;
2437#endif
2438 }
2439 } else {
2440 blitfun = BlitNto1;
2441 }
2442 } else {
2443 /* Now the meat, choose the blitter we want */
2444 int a_need = NO_ALPHA;
2445 if(dstfmt->Amask)
2446 a_need = srcfmt->Amask ? COPY_ALPHA : SET_ALPHA;
2447 table = normal_blit[srcfmt->BytesPerPixel-1];
2448 for ( which=0; table[which].dstbpp; ++which ) {
2449 if ( MASKOK(srcfmt->Rmask, table[which].srcR) &&
2450 MASKOK(srcfmt->Gmask, table[which].srcG) &&
2451 MASKOK(srcfmt->Bmask, table[which].srcB) &&
2452 MASKOK(dstfmt->Rmask, table[which].dstR) &&
2453 MASKOK(dstfmt->Gmask, table[which].dstG) &&
2454 MASKOK(dstfmt->Bmask, table[which].dstB) &&
2455 dstfmt->BytesPerPixel == table[which].dstbpp &&
2456 (a_need & table[which].alpha) == a_need &&
2457 ((table[which].blit_features & GetBlitFeatures()) == table[which].blit_features) )
2458 break;
2459 }
2460 sdata->aux_data = table[which].aux_data;
2461 blitfun = table[which].blitfunc;
2462
2463 if(blitfun == BlitNtoN) { /* default C fallback catch-all. Slow! */
2464 /* Fastpath C fallback: 32bit RGB<->RGBA blit with matching RGB */
2465 if ( srcfmt->BytesPerPixel == 4 && dstfmt->BytesPerPixel == 4 &&
2466 srcfmt->Rmask == dstfmt->Rmask &&
2467 srcfmt->Gmask == dstfmt->Gmask &&
2468 srcfmt->Bmask == dstfmt->Bmask ) {
2469 blitfun = Blit4to4MaskAlpha;
2470 } else if ( a_need == COPY_ALPHA ) {
2471 blitfun = BlitNtoNCopyAlpha;
2472 }
2473 }
2474 }
2475
2476#ifdef DEBUG_ASM
2477#if SDL_HERMES_BLITTERS
2478 if ( blitfun == ConvertMMX )
2479 fprintf(stderr, "Using mmx blit\n");
2480 else
2481 if ( blitfun == ConvertX86 )
2482 fprintf(stderr, "Using asm blit\n");
2483 else
2484#endif
2485 if ( (blitfun == BlitNtoN) || (blitfun == BlitNto1) )
2486 fprintf(stderr, "Using C blit\n");
2487 else
2488 fprintf(stderr, "Using optimized C blit\n");
2489#endif /* DEBUG_ASM */
2490
2491 return(blitfun);
2492}
SDL with some OMAP hardware support