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comparison src/video/SDL_blit_N.c @ 3050:e763aa6db88b

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Fixed Altivec blitters for PPC
author Sam Lantinga <slouken@libsdl.org>
date Sun, 25 Jan 2009 05:14:29 +0000
parents 8cc00819c8d6
children dc1eb82ffdaa
comparison
equal deleted inserted replaced
3049:ed67e93944b1 3050:e763aa6db88b
112 * colors is alpha, and it's one complete byte, since some formats 112 * colors is alpha, and it's one complete byte, since some formats
113 * leave alpha with a zero mask, but we should still swizzle the bits. 113 * leave alpha with a zero mask, but we should still swizzle the bits.
114 */ 114 */
115 /* ARGB */ 115 /* ARGB */
116 const static struct SDL_PixelFormat default_pixel_format = { 116 const static struct SDL_PixelFormat default_pixel_format = {
117 NULL, 0, 0, 117 NULL, 32, 4,
118 0, 0, 0, 0, 118 0, 0, 0, 0,
119 16, 8, 0, 24, 119 16, 8, 0, 24,
120 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000, 120 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000
121 0, 0
122 }; 121 };
123 if (!srcfmt) { 122 if (!srcfmt) {
124 srcfmt = &default_pixel_format; 123 srcfmt = &default_pixel_format;
125 } 124 }
126 if (!dstfmt) { 125 if (!dstfmt) {
161 int height = info->dst_h; 160 int height = info->dst_h;
162 Uint8 *src = (Uint8 *) info->src; 161 Uint8 *src = (Uint8 *) info->src;
163 int srcskip = info->src_skip; 162 int srcskip = info->src_skip;
164 Uint8 *dst = (Uint8 *) info->dst; 163 Uint8 *dst = (Uint8 *) info->dst;
165 int dstskip = info->dst_skip; 164 int dstskip = info->dst_skip;
166 SDL_PixelFormat *srcfmt = info->src; 165 SDL_PixelFormat *srcfmt = info->src_fmt;
167 vector unsigned char valpha = vec_splat_u8(0); 166 vector unsigned char valpha = vec_splat_u8(0);
168 vector unsigned char vpermute = calc_swizzle32(srcfmt, NULL); 167 vector unsigned char vpermute = calc_swizzle32(srcfmt, NULL);
169 vector unsigned char vgmerge = VECUINT8_LITERAL(0x00, 0x02, 0x00, 0x06, 168 vector unsigned char vgmerge = VECUINT8_LITERAL(0x00, 0x02, 0x00, 0x06,
170 0x00, 0x0a, 0x00, 0x0e, 169 0x00, 0x0a, 0x00, 0x0e,
171 0x00, 0x12, 0x00, 0x16, 170 0x00, 0x12, 0x00, 0x16,
265 int height = info->dst_h; 264 int height = info->dst_h;
266 Uint8 *src = (Uint8 *) info->src; 265 Uint8 *src = (Uint8 *) info->src;
267 int srcskip = info->src_skip; 266 int srcskip = info->src_skip;
268 Uint8 *dst = (Uint8 *) info->dst; 267 Uint8 *dst = (Uint8 *) info->dst;
269 int dstskip = info->dst_skip; 268 int dstskip = info->dst_skip;
270 SDL_PixelFormat *srcfmt = info->src; 269 SDL_PixelFormat *srcfmt = info->src_fmt;
271 SDL_PixelFormat *dstfmt = info->dst; 270 SDL_PixelFormat *dstfmt = info->dst_fmt;
272 unsigned alpha; 271 unsigned alpha;
273 vector unsigned char valpha; 272 vector unsigned char valpha;
274 vector unsigned char vpermute; 273 vector unsigned char vpermute;
275 vector unsigned short vf800; 274 vector unsigned short vf800;
276 vector unsigned int v8 = vec_splat_u32(8); 275 vector unsigned int v8 = vec_splat_u32(8);
413 int height = info->dst_h; 412 int height = info->dst_h;
414 Uint8 *src = (Uint8 *) info->src; 413 Uint8 *src = (Uint8 *) info->src;
415 int srcskip = info->src_skip; 414 int srcskip = info->src_skip;
416 Uint8 *dst = (Uint8 *) info->dst; 415 Uint8 *dst = (Uint8 *) info->dst;
417 int dstskip = info->dst_skip; 416 int dstskip = info->dst_skip;
418 SDL_PixelFormat *srcfmt = info->src; 417 SDL_PixelFormat *srcfmt = info->src_fmt;
419 SDL_PixelFormat *dstfmt = info->dst; 418 SDL_PixelFormat *dstfmt = info->dst_fmt;
420 unsigned alpha; 419 unsigned alpha;
421 vector unsigned char valpha; 420 vector unsigned char valpha;
422 vector unsigned char vpermute; 421 vector unsigned char vpermute;
423 vector unsigned short vf800; 422 vector unsigned short vf800;
424 vector unsigned int v8 = vec_splat_u32(8); 423 vector unsigned int v8 = vec_splat_u32(8);
559 static void 558 static void
560 Blit32to32KeyAltivec(SDL_BlitInfo * info) 559 Blit32to32KeyAltivec(SDL_BlitInfo * info)
561 { 560 {
562 int height = info->dst_h; 561 int height = info->dst_h;
563 Uint32 *srcp = (Uint32 *) info->src; 562 Uint32 *srcp = (Uint32 *) info->src;
564 int srcskip = info->src_skip; 563 int srcskip = info->src_skip / 4;
565 Uint32 *dstp = (Uint32 *) info->dst; 564 Uint32 *dstp = (Uint32 *) info->dst;
566 int dstskip = info->dst_skip; 565 int dstskip = info->dst_skip / 4;
567 SDL_PixelFormat *srcfmt = info->src; 566 SDL_PixelFormat *srcfmt = info->src_fmt;
568 int srcbpp = srcfmt->BytesPerPixel; 567 int srcbpp = srcfmt->BytesPerPixel;
569 SDL_PixelFormat *dstfmt = info->dst; 568 SDL_PixelFormat *dstfmt = info->dst_fmt;
570 int dstbpp = dstfmt->BytesPerPixel; 569 int dstbpp = dstfmt->BytesPerPixel;
571 int copy_alpha = (srcfmt->Amask && dstfmt->Amask); 570 int copy_alpha = (srcfmt->Amask && dstfmt->Amask);
572 unsigned alpha = dstfmt->Amask ? info->a : 0; 571 unsigned alpha = dstfmt->Amask ? info->a : 0;
573 Uint32 rgbmask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask; 572 Uint32 rgbmask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask;
574 Uint32 ckey = info->colorkey; 573 Uint32 ckey = info->colorkey;
664 dstp += 4; 663 dstp += 4;
665 vs = voverflow; 664 vs = voverflow;
666 } 665 }
667 ONE_PIXEL_BLEND((extrawidth), extrawidth); 666 ONE_PIXEL_BLEND((extrawidth), extrawidth);
668 #undef ONE_PIXEL_BLEND 667 #undef ONE_PIXEL_BLEND
669 srcp += srcskip >> 2; 668 srcp += srcskip;
670 dstp += dstskip >> 2; 669 dstp += dstskip;
671 } 670 }
672 } 671 }
673 } 672 }
674 673
675 /* Altivec code to swizzle one 32-bit surface to a different 32-bit format. */ 674 /* Altivec code to swizzle one 32-bit surface to a different 32-bit format. */
677 static void 676 static void
678 ConvertAltivec32to32_noprefetch(SDL_BlitInfo * info) 677 ConvertAltivec32to32_noprefetch(SDL_BlitInfo * info)
679 { 678 {
680 int height = info->dst_h; 679 int height = info->dst_h;
681 Uint32 *src = (Uint32 *) info->src; 680 Uint32 *src = (Uint32 *) info->src;
682 int srcskip = info->src_skip; 681 int srcskip = info->src_skip / 4;
683 Uint32 *dst = (Uint32 *) info->dst; 682 Uint32 *dst = (Uint32 *) info->dst;
684 int dstskip = info->dst_skip; 683 int dstskip = info->dst_skip / 4;
685 SDL_PixelFormat *srcfmt = info->src; 684 SDL_PixelFormat *srcfmt = info->src_fmt;
686 SDL_PixelFormat *dstfmt = info->dst; 685 SDL_PixelFormat *dstfmt = info->dst_fmt;
687 vector unsigned int vzero = vec_splat_u32(0); 686 vector unsigned int vzero = vec_splat_u32(0);
688 vector unsigned char vpermute = calc_swizzle32(srcfmt, dstfmt); 687 vector unsigned char vpermute = calc_swizzle32(srcfmt, dstfmt);
689 if (dstfmt->Amask && !srcfmt->Amask) { 688 if (dstfmt->Amask && !srcfmt->Amask) {
690 if (info->a) { 689 if (info->a) {
691 vector unsigned char valpha; 690 vector unsigned char valpha;
740 RGBA_FROM_8888(bits, srcfmt, r, g, b, a); 739 RGBA_FROM_8888(bits, srcfmt, r, g, b, a);
741 *(dst++) = MAKE8888(dstfmt, r, g, b, a); 740 *(dst++) = MAKE8888(dstfmt, r, g, b, a);
742 extrawidth--; 741 extrawidth--;
743 } 742 }
744 743
745 src += srcskip >> 2; /* move to next row, accounting for pitch. */ 744 src += srcskip;
746 dst += dstskip >> 2; 745 dst += dstskip;
747 } 746 }
748 747
749 } 748 }
750 749
751 /* Altivec code to swizzle one 32-bit surface to a different 32-bit format. */ 750 /* Altivec code to swizzle one 32-bit surface to a different 32-bit format. */
756 const int scalar_dst_lead = sizeof(Uint32) * 4; 755 const int scalar_dst_lead = sizeof(Uint32) * 4;
757 const int vector_dst_lead = sizeof(Uint32) * 16; 756 const int vector_dst_lead = sizeof(Uint32) * 16;
758 757
759 int height = info->dst_h; 758 int height = info->dst_h;
760 Uint32 *src = (Uint32 *) info->src; 759 Uint32 *src = (Uint32 *) info->src;
761 int srcskip = info->src_skip; 760 int srcskip = info->src_skip / 4;
762 Uint32 *dst = (Uint32 *) info->dst; 761 Uint32 *dst = (Uint32 *) info->dst;
763 int dstskip = info->dst_skip; 762 int dstskip = info->dst_skip / 4;
764 SDL_PixelFormat *srcfmt = info->src; 763 SDL_PixelFormat *srcfmt = info->src_fmt;
765 SDL_PixelFormat *dstfmt = info->dst; 764 SDL_PixelFormat *dstfmt = info->dst_fmt;
766 vector unsigned int vzero = vec_splat_u32(0); 765 vector unsigned int vzero = vec_splat_u32(0);
767 vector unsigned char vpermute = calc_swizzle32(srcfmt, dstfmt); 766 vector unsigned char vpermute = calc_swizzle32(srcfmt, dstfmt);
768 if (dstfmt->Amask && !srcfmt->Amask) { 767 if (dstfmt->Amask && !srcfmt->Amask) {
769 if (info->a) { 768 if (info->a) {
770 vector unsigned char valpha; 769 vector unsigned char valpha;
827 RGBA_FROM_8888(bits, srcfmt, r, g, b, a); 826 RGBA_FROM_8888(bits, srcfmt, r, g, b, a);
828 *(dst++) = MAKE8888(dstfmt, r, g, b, a); 827 *(dst++) = MAKE8888(dstfmt, r, g, b, a);
829 extrawidth--; 828 extrawidth--;
830 } 829 }
831 830
832 src += srcskip >> 2; /* move to next row, accounting for pitch. */ 831 src += srcskip;
833 dst += dstskip >> 2; 832 dst += dstskip;
834 } 833 }
835 834
836 vec_dss(DST_CHAN_SRC); 835 vec_dss(DST_CHAN_SRC);
837 vec_dss(DST_CHAN_DEST); 836 vec_dss(DST_CHAN_DEST);
838 } 837 }