Mercurial > sdl-ios-xcode
diff src/video/SDL_blit_A.c @ 5264:6a65c1fc07af
Updated CPU detection code for SSE3 and SSE4 and removed obsolete 3DNow! and Altivec support.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 11 Feb 2011 14:51:04 -0800 |
| parents | f7b03b6838cb |
| children | b530ef003506 |
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--- a/src/video/SDL_blit_A.c Fri Feb 11 14:42:58 2011 -0800 +++ b/src/video/SDL_blit_A.c Fri Feb 11 14:51:04 2011 -0800 @@ -419,806 +419,6 @@ #endif /* __MMX__ */ -#if SDL_ALTIVEC_BLITTERS -#if __MWERKS__ -#pragma altivec_model on -#endif -#if HAVE_ALTIVEC_H -#include <altivec.h> -#endif -#include <assert.h> - -#if (defined(__MACOSX__) && (__GNUC__ < 4)) -#define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \ - (vector unsigned char) ( a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p ) -#define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \ - (vector unsigned short) ( a,b,c,d,e,f,g,h ) -#else -#define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \ - (vector unsigned char) { a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p } -#define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \ - (vector unsigned short) { a,b,c,d,e,f,g,h } -#endif - -#define UNALIGNED_PTR(x) (((size_t) x) & 0x0000000F) -#define VECPRINT(msg, v) do { \ - vector unsigned int tmpvec = (vector unsigned int)(v); \ - unsigned int *vp = (unsigned int *)&tmpvec; \ - printf("%s = %08X %08X %08X %08X\n", msg, vp[0], vp[1], vp[2], vp[3]); \ -} while (0) - -/* the permuation vector that takes the high bytes out of all the appropriate shorts - (vector unsigned char)( - 0x00, 0x10, 0x02, 0x12, - 0x04, 0x14, 0x06, 0x16, - 0x08, 0x18, 0x0A, 0x1A, - 0x0C, 0x1C, 0x0E, 0x1E ); -*/ -#define VEC_MERGE_PERMUTE() (vec_add(vec_lvsl(0, (int*)NULL), (vector unsigned char)vec_splat_u16(0x0F))) -#define VEC_U32_24() (vec_add(vec_splat_u32(12), vec_splat_u32(12))) -#define VEC_ALPHA_MASK() ((vector unsigned char)vec_sl((vector unsigned int)vec_splat_s8(-1), VEC_U32_24())) -#define VEC_ALIGNER(src) ((UNALIGNED_PTR(src)) \ - ? vec_lvsl(0, src) \ - : vec_add(vec_lvsl(8, src), vec_splat_u8(8))) - - -#define VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1_16, v8_16) do { \ - /* vtemp1 contains source AAGGAAGGAAGGAAGG */ \ - vector unsigned short vtemp1 = vec_mule(vs, valpha); \ - /* vtemp2 contains source RRBBRRBBRRBBRRBB */ \ - vector unsigned short vtemp2 = vec_mulo(vs, valpha); \ - /* valpha2 is 255-alpha */ \ - vector unsigned char valpha2 = vec_nor(valpha, valpha); \ - /* vtemp3 contains dest AAGGAAGGAAGGAAGG */ \ - vector unsigned short vtemp3 = vec_mule(vd, valpha2); \ - /* vtemp4 contains dest RRBBRRBBRRBBRRBB */ \ - vector unsigned short vtemp4 = vec_mulo(vd, valpha2); \ - /* add source and dest */ \ - vtemp1 = vec_add(vtemp1, vtemp3); \ - vtemp2 = vec_add(vtemp2, vtemp4); \ - /* vtemp1 = (vtemp1 + 1) + ((vtemp1 + 1) >> 8) */ \ - vtemp1 = vec_add(vtemp1, v1_16); \ - vtemp3 = vec_sr(vtemp1, v8_16); \ - vtemp1 = vec_add(vtemp1, vtemp3); \ - /* vtemp2 = (vtemp2 + 1) + ((vtemp2 + 1) >> 8) */ \ - vtemp2 = vec_add(vtemp2, v1_16); \ - vtemp4 = vec_sr(vtemp2, v8_16); \ - vtemp2 = vec_add(vtemp2, vtemp4); \ - /* (>>8) and get ARGBARGBARGBARGB */ \ - vd = (vector unsigned char)vec_perm(vtemp1, vtemp2, mergePermute); \ -} while (0) - -/* Calculate the permute vector used for 32->32 swizzling */ -static vector unsigned char -calc_swizzle32(const SDL_PixelFormat * srcfmt, const SDL_PixelFormat * dstfmt) -{ - /* - * We have to assume that the bits that aren't used by other - * colors is alpha, and it's one complete byte, since some formats - * leave alpha with a zero mask, but we should still swizzle the bits. - */ - /* ARGB */ - const static struct SDL_PixelFormat default_pixel_format = { - NULL, 0, 0, - 0, 0, 0, 0, - 16, 8, 0, 24, - 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000 - }; - if (!srcfmt) { - srcfmt = &default_pixel_format; - } - if (!dstfmt) { - dstfmt = &default_pixel_format; - } - const vector unsigned char plus = VECUINT8_LITERAL(0x00, 0x00, 0x00, 0x00, - 0x04, 0x04, 0x04, 0x04, - 0x08, 0x08, 0x08, 0x08, - 0x0C, 0x0C, 0x0C, - 0x0C); - vector unsigned char vswiz; - vector unsigned int srcvec; -#define RESHIFT(X) (3 - ((X) >> 3)) - Uint32 rmask = RESHIFT(srcfmt->Rshift) << (dstfmt->Rshift); - Uint32 gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift); - Uint32 bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift); - Uint32 amask; - /* Use zero for alpha if either surface doesn't have alpha */ - if (dstfmt->Amask) { - amask = - ((srcfmt->Amask) ? RESHIFT(srcfmt-> - Ashift) : 0x10) << (dstfmt->Ashift); - } else { - amask = - 0x10101010 & ((dstfmt->Rmask | dstfmt->Gmask | dstfmt->Bmask) ^ - 0xFFFFFFFF); - } -#undef RESHIFT - ((unsigned int *) (char *) &srcvec)[0] = (rmask | gmask | bmask | amask); - vswiz = vec_add(plus, (vector unsigned char) vec_splat(srcvec, 0)); - return (vswiz); -} - -static void -Blit32to565PixelAlphaAltivec(SDL_BlitInfo * info) -{ - int height = info->dst_h; - Uint8 *src = (Uint8 *) info->src; - int srcskip = info->src_skip; - Uint8 *dst = (Uint8 *) info->dst; - int dstskip = info->dst_skip; - SDL_PixelFormat *srcfmt = info->src_fmt; - - vector unsigned char v0 = vec_splat_u8(0); - vector unsigned short v8_16 = vec_splat_u16(8); - vector unsigned short v1_16 = vec_splat_u16(1); - vector unsigned short v2_16 = vec_splat_u16(2); - vector unsigned short v3_16 = vec_splat_u16(3); - vector unsigned int v8_32 = vec_splat_u32(8); - vector unsigned int v16_32 = vec_add(v8_32, v8_32); - vector unsigned short v3f = - VECUINT16_LITERAL(0x003f, 0x003f, 0x003f, 0x003f, - 0x003f, 0x003f, 0x003f, 0x003f); - vector unsigned short vfc = - VECUINT16_LITERAL(0x00fc, 0x00fc, 0x00fc, 0x00fc, - 0x00fc, 0x00fc, 0x00fc, 0x00fc); - - /* - 0x10 - 0x1f is the alpha - 0x00 - 0x0e evens are the red - 0x01 - 0x0f odds are zero - */ - vector unsigned char vredalpha1 = VECUINT8_LITERAL(0x10, 0x00, 0x01, 0x01, - 0x10, 0x02, 0x01, 0x01, - 0x10, 0x04, 0x01, 0x01, - 0x10, 0x06, 0x01, - 0x01); - vector unsigned char vredalpha2 = - (vector unsigned char) (vec_add((vector unsigned int) vredalpha1, - vec_sl(v8_32, v16_32)) - ); - /* - 0x00 - 0x0f is ARxx ARxx ARxx ARxx - 0x11 - 0x0f odds are blue - */ - vector unsigned char vblue1 = VECUINT8_LITERAL(0x00, 0x01, 0x02, 0x11, - 0x04, 0x05, 0x06, 0x13, - 0x08, 0x09, 0x0a, 0x15, - 0x0c, 0x0d, 0x0e, 0x17); - vector unsigned char vblue2 = - (vector unsigned char) (vec_add((vector unsigned int) vblue1, v8_32) - ); - /* - 0x00 - 0x0f is ARxB ARxB ARxB ARxB - 0x10 - 0x0e evens are green - */ - vector unsigned char vgreen1 = VECUINT8_LITERAL(0x00, 0x01, 0x10, 0x03, - 0x04, 0x05, 0x12, 0x07, - 0x08, 0x09, 0x14, 0x0b, - 0x0c, 0x0d, 0x16, 0x0f); - vector unsigned char vgreen2 = - (vector unsigned - char) (vec_add((vector unsigned int) vgreen1, vec_sl(v8_32, v8_32)) - ); - vector unsigned char vgmerge = VECUINT8_LITERAL(0x00, 0x02, 0x00, 0x06, - 0x00, 0x0a, 0x00, 0x0e, - 0x00, 0x12, 0x00, 0x16, - 0x00, 0x1a, 0x00, 0x1e); - vector unsigned char mergePermute = VEC_MERGE_PERMUTE(); - vector unsigned char vpermute = calc_swizzle32(srcfmt, NULL); - vector unsigned char valphaPermute = - vec_and(vec_lvsl(0, (int *) NULL), vec_splat_u8(0xC)); - - vector unsigned short vf800 = (vector unsigned short) vec_splat_u8(-7); - vf800 = vec_sl(vf800, vec_splat_u16(8)); - - while (height--) { - int extrawidth; - vector unsigned char valigner; - vector unsigned char vsrc; - vector unsigned char voverflow; - int width = info->dst_w; - -#define ONE_PIXEL_BLEND(condition, widthvar) \ - while (condition) { \ - Uint32 Pixel; \ - unsigned sR, sG, sB, dR, dG, dB, sA; \ - DISEMBLE_RGBA(src, 4, srcfmt, Pixel, sR, sG, sB, sA); \ - if(sA) { \ - unsigned short dstpixel = *((unsigned short *)dst); \ - dR = (dstpixel >> 8) & 0xf8; \ - dG = (dstpixel >> 3) & 0xfc; \ - dB = (dstpixel << 3) & 0xf8; \ - ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ - *((unsigned short *)dst) = ( \ - ((dR & 0xf8) << 8) | ((dG & 0xfc) << 3) | (dB >> 3) \ - ); \ - } \ - src += 4; \ - dst += 2; \ - widthvar--; \ - } - ONE_PIXEL_BLEND((UNALIGNED_PTR(dst)) && (width), width); - extrawidth = (width % 8); - valigner = VEC_ALIGNER(src); - vsrc = (vector unsigned char) vec_ld(0, src); - width -= extrawidth; - while (width) { - vector unsigned char valpha; - vector unsigned char vsrc1, vsrc2; - vector unsigned char vdst1, vdst2; - vector unsigned short vR, vG, vB; - vector unsigned short vpixel, vrpixel, vgpixel, vbpixel; - - /* Load 8 pixels from src as ARGB */ - voverflow = (vector unsigned char) vec_ld(15, src); - vsrc = vec_perm(vsrc, voverflow, valigner); - vsrc1 = vec_perm(vsrc, vsrc, vpermute); - src += 16; - vsrc = (vector unsigned char) vec_ld(15, src); - voverflow = vec_perm(voverflow, vsrc, valigner); - vsrc2 = vec_perm(voverflow, voverflow, vpermute); - src += 16; - - /* Load 8 pixels from dst as XRGB */ - voverflow = vec_ld(0, dst); - vR = vec_and((vector unsigned short) voverflow, vf800); - vB = vec_sl((vector unsigned short) voverflow, v3_16); - vG = vec_sl(vB, v2_16); - vdst1 = - (vector unsigned char) vec_perm((vector unsigned char) vR, - (vector unsigned char) vR, - vredalpha1); - vdst1 = vec_perm(vdst1, (vector unsigned char) vB, vblue1); - vdst1 = vec_perm(vdst1, (vector unsigned char) vG, vgreen1); - vdst2 = - (vector unsigned char) vec_perm((vector unsigned char) vR, - (vector unsigned char) vR, - vredalpha2); - vdst2 = vec_perm(vdst2, (vector unsigned char) vB, vblue2); - vdst2 = vec_perm(vdst2, (vector unsigned char) vG, vgreen2); - - /* Alpha blend 8 pixels as ARGB */ - valpha = vec_perm(vsrc1, v0, valphaPermute); - VEC_MULTIPLY_ALPHA(vsrc1, vdst1, valpha, mergePermute, v1_16, - v8_16); - valpha = vec_perm(vsrc2, v0, valphaPermute); - VEC_MULTIPLY_ALPHA(vsrc2, vdst2, valpha, mergePermute, v1_16, - v8_16); - - /* Convert 8 pixels to 565 */ - vpixel = (vector unsigned short) vec_packpx((vector unsigned int) - vdst1, - (vector unsigned int) - vdst2); - vgpixel = (vector unsigned short) vec_perm(vdst1, vdst2, vgmerge); - vgpixel = vec_and(vgpixel, vfc); - vgpixel = vec_sl(vgpixel, v3_16); - vrpixel = vec_sl(vpixel, v1_16); - vrpixel = vec_and(vrpixel, vf800); - vbpixel = vec_and(vpixel, v3f); - vdst1 = - vec_or((vector unsigned char) vrpixel, - (vector unsigned char) vgpixel); - vdst1 = vec_or(vdst1, (vector unsigned char) vbpixel); - - /* Store 8 pixels */ - vec_st(vdst1, 0, dst); - - width -= 8; - dst += 16; - } - ONE_PIXEL_BLEND((extrawidth), extrawidth); -#undef ONE_PIXEL_BLEND - src += srcskip; - dst += dstskip; - } -} - -static void -Blit32to32SurfaceAlphaKeyAltivec(SDL_BlitInfo * info) -{ - int height = info->dst_h; - Uint32 *srcp = (Uint32 *) info->src; - int srcskip = info->src_skip >> 2; - Uint32 *dstp = (Uint32 *) info->dst; - int dstskip = info->dst_skip >> 2; - SDL_PixelFormat *srcfmt = info->src_fmt; - SDL_PixelFormat *dstfmt = info->dst_fmt; - unsigned sA = info->a; - unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; - Uint32 rgbmask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask; - Uint32 ckey = info->colorkey; - vector unsigned char mergePermute; - vector unsigned char vsrcPermute; - vector unsigned char vdstPermute; - vector unsigned char vsdstPermute; - vector unsigned char valpha; - vector unsigned char valphamask; - vector unsigned char vbits; - vector unsigned char v0; - vector unsigned short v1; - vector unsigned short v8; - vector unsigned int vckey; - vector unsigned int vrgbmask; - - mergePermute = VEC_MERGE_PERMUTE(); - v0 = vec_splat_u8(0); - v1 = vec_splat_u16(1); - v8 = vec_splat_u16(8); - - /* set the alpha to 255 on the destination surf */ - valphamask = VEC_ALPHA_MASK(); - - vsrcPermute = calc_swizzle32(srcfmt, NULL); - vdstPermute = calc_swizzle32(NULL, dstfmt); - vsdstPermute = calc_swizzle32(dstfmt, NULL); - - /* set a vector full of alpha and 255-alpha */ - ((unsigned char *) &valpha)[0] = sA; - valpha = vec_splat(valpha, 0); - vbits = (vector unsigned char) vec_splat_s8(-1); - - ckey &= rgbmask; - ((unsigned int *) (char *) &vckey)[0] = ckey; - vckey = vec_splat(vckey, 0); - ((unsigned int *) (char *) &vrgbmask)[0] = rgbmask; - vrgbmask = vec_splat(vrgbmask, 0); - - while (height--) { - int width = info->dst_w; -#define ONE_PIXEL_BLEND(condition, widthvar) \ - while (condition) { \ - Uint32 Pixel; \ - unsigned sR, sG, sB, dR, dG, dB; \ - RETRIEVE_RGB_PIXEL(((Uint8 *)srcp), 4, Pixel); \ - if(sA && Pixel != ckey) { \ - RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB); \ - DISEMBLE_RGB(((Uint8 *)dstp), 4, dstfmt, Pixel, dR, dG, dB); \ - ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ - ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \ - } \ - dstp++; \ - srcp++; \ - widthvar--; \ - } - ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); - if (width > 0) { - int extrawidth = (width % 4); - vector unsigned char valigner = VEC_ALIGNER(srcp); - vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp); - width -= extrawidth; - while (width) { - vector unsigned char vsel; - vector unsigned char voverflow; - vector unsigned char vd; - vector unsigned char vd_orig; - - /* s = *srcp */ - voverflow = (vector unsigned char) vec_ld(15, srcp); - vs = vec_perm(vs, voverflow, valigner); - - /* vsel is set for items that match the key */ - vsel = - (vector unsigned char) vec_and((vector unsigned int) vs, - vrgbmask); - vsel = (vector unsigned char) vec_cmpeq((vector unsigned int) - vsel, vckey); - - /* permute to source format */ - vs = vec_perm(vs, valpha, vsrcPermute); - - /* d = *dstp */ - vd = (vector unsigned char) vec_ld(0, dstp); - vd_orig = vd = vec_perm(vd, v0, vsdstPermute); - - VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); - - /* set the alpha channel to full on */ - vd = vec_or(vd, valphamask); - - /* mask out color key */ - vd = vec_sel(vd, vd_orig, vsel); - - /* permute to dest format */ - vd = vec_perm(vd, vbits, vdstPermute); - - /* *dstp = res */ - vec_st((vector unsigned int) vd, 0, dstp); - - srcp += 4; - dstp += 4; - width -= 4; - vs = voverflow; - } - ONE_PIXEL_BLEND((extrawidth), extrawidth); - } -#undef ONE_PIXEL_BLEND - - srcp += srcskip; - dstp += dstskip; - } -} - - -static void -Blit32to32PixelAlphaAltivec(SDL_BlitInfo * info) -{ - int width = info->dst_w; - int height = info->dst_h; - Uint32 *srcp = (Uint32 *) info->src; - int srcskip = info->src_skip >> 2; - Uint32 *dstp = (Uint32 *) info->dst; - int dstskip = info->dst_skip >> 2; - SDL_PixelFormat *srcfmt = info->src_fmt; - SDL_PixelFormat *dstfmt = info->dst_fmt; - vector unsigned char mergePermute; - vector unsigned char valphaPermute; - vector unsigned char vsrcPermute; - vector unsigned char vdstPermute; - vector unsigned char vsdstPermute; - vector unsigned char valphamask; - vector unsigned char vpixelmask; - vector unsigned char v0; - vector unsigned short v1; - vector unsigned short v8; - - v0 = vec_splat_u8(0); - v1 = vec_splat_u16(1); - v8 = vec_splat_u16(8); - mergePermute = VEC_MERGE_PERMUTE(); - valphamask = VEC_ALPHA_MASK(); - valphaPermute = vec_and(vec_lvsl(0, (int *) NULL), vec_splat_u8(0xC)); - vpixelmask = vec_nor(valphamask, v0); - vsrcPermute = calc_swizzle32(srcfmt, NULL); - vdstPermute = calc_swizzle32(NULL, dstfmt); - vsdstPermute = calc_swizzle32(dstfmt, NULL); - - while (height--) { - width = info->dst_w; -#define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \ - Uint32 Pixel; \ - unsigned sR, sG, sB, dR, dG, dB, sA, dA; \ - DISEMBLE_RGBA((Uint8 *)srcp, 4, srcfmt, Pixel, sR, sG, sB, sA); \ - if(sA) { \ - DISEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, Pixel, dR, dG, dB, dA); \ - ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ - ASSEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, dR, dG, dB, dA); \ - } \ - ++srcp; \ - ++dstp; \ - widthvar--; \ - } - ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); - if (width > 0) { - /* vsrcPermute */ - /* vdstPermute */ - int extrawidth = (width % 4); - vector unsigned char valigner = VEC_ALIGNER(srcp); - vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp); - width -= extrawidth; - while (width) { - vector unsigned char voverflow; - vector unsigned char vd; - vector unsigned char valpha; - vector unsigned char vdstalpha; - /* s = *srcp */ - voverflow = (vector unsigned char) vec_ld(15, srcp); - vs = vec_perm(vs, voverflow, valigner); - vs = vec_perm(vs, v0, vsrcPermute); - - valpha = vec_perm(vs, v0, valphaPermute); - - /* d = *dstp */ - vd = (vector unsigned char) vec_ld(0, dstp); - vd = vec_perm(vd, v0, vsdstPermute); - vdstalpha = vec_and(vd, valphamask); - - VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); - - /* set the alpha to the dest alpha */ - vd = vec_and(vd, vpixelmask); - vd = vec_or(vd, vdstalpha); - vd = vec_perm(vd, v0, vdstPermute); - - /* *dstp = res */ - vec_st((vector unsigned int) vd, 0, dstp); - - srcp += 4; - dstp += 4; - width -= 4; - vs = voverflow; - - } - ONE_PIXEL_BLEND((extrawidth), extrawidth); - } - srcp += srcskip; - dstp += dstskip; -#undef ONE_PIXEL_BLEND - } -} - -/* fast ARGB888->(A)RGB888 blending with pixel alpha */ -static void -BlitRGBtoRGBPixelAlphaAltivec(SDL_BlitInfo * info) -{ - int width = info->dst_w; - int height = info->dst_h; - Uint32 *srcp = (Uint32 *) info->src; - int srcskip = info->src_skip >> 2; - Uint32 *dstp = (Uint32 *) info->dst; - int dstskip = info->dst_skip >> 2; - vector unsigned char mergePermute; - vector unsigned char valphaPermute; - vector unsigned char valphamask; - vector unsigned char vpixelmask; - vector unsigned char v0; - vector unsigned short v1; - vector unsigned short v8; - v0 = vec_splat_u8(0); - v1 = vec_splat_u16(1); - v8 = vec_splat_u16(8); - mergePermute = VEC_MERGE_PERMUTE(); - valphamask = VEC_ALPHA_MASK(); - valphaPermute = vec_and(vec_lvsl(0, (int *) NULL), vec_splat_u8(0xC)); - - - vpixelmask = vec_nor(valphamask, v0); - while (height--) { - width = info->dst_w; -#define ONE_PIXEL_BLEND(condition, widthvar) \ - while ((condition)) { \ - Uint32 dalpha; \ - Uint32 d; \ - Uint32 s1; \ - Uint32 d1; \ - Uint32 s = *srcp; \ - Uint32 alpha = s >> 24; \ - if(alpha) { \ - if(alpha == SDL_ALPHA_OPAQUE) { \ - *dstp = (s & 0x00ffffff) | (*dstp & 0xff000000); \ - } else { \ - d = *dstp; \ - dalpha = d & 0xff000000; \ - s1 = s & 0xff00ff; \ - d1 = d & 0xff00ff; \ - d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff; \ - s &= 0xff00; \ - d &= 0xff00; \ - d = (d + ((s - d) * alpha >> 8)) & 0xff00; \ - *dstp = d1 | d | dalpha; \ - } \ - } \ - ++srcp; \ - ++dstp; \ - widthvar--; \ - } - ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); - if (width > 0) { - int extrawidth = (width % 4); - vector unsigned char valigner = VEC_ALIGNER(srcp); - vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp); - width -= extrawidth; - while (width) { - vector unsigned char voverflow; - vector unsigned char vd; - vector unsigned char valpha; - vector unsigned char vdstalpha; - /* s = *srcp */ - voverflow = (vector unsigned char) vec_ld(15, srcp); - vs = vec_perm(vs, voverflow, valigner); - - valpha = vec_perm(vs, v0, valphaPermute); - - /* d = *dstp */ - vd = (vector unsigned char) vec_ld(0, dstp); - vdstalpha = vec_and(vd, valphamask); - - VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); - - /* set the alpha to the dest alpha */ - vd = vec_and(vd, vpixelmask); - vd = vec_or(vd, vdstalpha); - - /* *dstp = res */ - vec_st((vector unsigned int) vd, 0, dstp); - - srcp += 4; - dstp += 4; - width -= 4; - vs = voverflow; - } - ONE_PIXEL_BLEND((extrawidth), extrawidth); - } - srcp += srcskip; - dstp += dstskip; - } -#undef ONE_PIXEL_BLEND -} - -static void -Blit32to32SurfaceAlphaAltivec(SDL_BlitInfo * info) -{ - /* XXX : 6 */ - int height = info->dst_h; - Uint32 *srcp = (Uint32 *) info->src; - int srcskip = info->src_skip >> 2; - Uint32 *dstp = (Uint32 *) info->dst; - int dstskip = info->dst_skip >> 2; - SDL_PixelFormat *srcfmt = info->src_fmt; - SDL_PixelFormat *dstfmt = info->dst_fmt; - unsigned sA = info->a; - unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; - vector unsigned char mergePermute; - vector unsigned char vsrcPermute; - vector unsigned char vdstPermute; - vector unsigned char vsdstPermute; - vector unsigned char valpha; - vector unsigned char valphamask; - vector unsigned char vbits; - vector unsigned short v1; - vector unsigned short v8; - - mergePermute = VEC_MERGE_PERMUTE(); - v1 = vec_splat_u16(1); - v8 = vec_splat_u16(8); - - /* set the alpha to 255 on the destination surf */ - valphamask = VEC_ALPHA_MASK(); - - vsrcPermute = calc_swizzle32(srcfmt, NULL); - vdstPermute = calc_swizzle32(NULL, dstfmt); - vsdstPermute = calc_swizzle32(dstfmt, NULL); - - /* set a vector full of alpha and 255-alpha */ - ((unsigned char *) &valpha)[0] = sA; - valpha = vec_splat(valpha, 0); - vbits = (vector unsigned char) vec_splat_s8(-1); - - while (height--) { - int width = info->dst_w; -#define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \ - Uint32 Pixel; \ - unsigned sR, sG, sB, dR, dG, dB; \ - DISEMBLE_RGB(((Uint8 *)srcp), 4, srcfmt, Pixel, sR, sG, sB); \ - DISEMBLE_RGB(((Uint8 *)dstp), 4, dstfmt, Pixel, dR, dG, dB); \ - ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ - ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \ - ++srcp; \ - ++dstp; \ - widthvar--; \ - } - ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); - if (width > 0) { - int extrawidth = (width % 4); - vector unsigned char valigner = VEC_ALIGNER(srcp); - vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp); - width -= extrawidth; - while (width) { - vector unsigned char voverflow; - vector unsigned char vd; - - /* s = *srcp */ - voverflow = (vector unsigned char) vec_ld(15, srcp); - vs = vec_perm(vs, voverflow, valigner); - vs = vec_perm(vs, valpha, vsrcPermute); - - /* d = *dstp */ - vd = (vector unsigned char) vec_ld(0, dstp); - vd = vec_perm(vd, vd, vsdstPermute); - - VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); - - /* set the alpha channel to full on */ - vd = vec_or(vd, valphamask); - vd = vec_perm(vd, vbits, vdstPermute); - - /* *dstp = res */ - vec_st((vector unsigned int) vd, 0, dstp); - - srcp += 4; - dstp += 4; - width -= 4; - vs = voverflow; - } - ONE_PIXEL_BLEND((extrawidth), extrawidth); - } -#undef ONE_PIXEL_BLEND - - srcp += srcskip; - dstp += dstskip; - } - -} - - -/* fast RGB888->(A)RGB888 blending */ -static void -BlitRGBtoRGBSurfaceAlphaAltivec(SDL_BlitInfo * info) -{ - unsigned alpha = info->a; - int height = info->dst_h; - Uint32 *srcp = (Uint32 *) info->src; - int srcskip = info->src_skip >> 2; - Uint32 *dstp = (Uint32 *) info->dst; - int dstskip = info->dst_skip >> 2; - vector unsigned char mergePermute; - vector unsigned char valpha; - vector unsigned char valphamask; - vector unsigned short v1; - vector unsigned short v8; - - mergePermute = VEC_MERGE_PERMUTE(); - v1 = vec_splat_u16(1); - v8 = vec_splat_u16(8); - - /* set the alpha to 255 on the destination surf */ - valphamask = VEC_ALPHA_MASK(); - - /* set a vector full of alpha and 255-alpha */ - ((unsigned char *) &valpha)[0] = alpha; - valpha = vec_splat(valpha, 0); - - while (height--) { - int width = info->dst_w; -#define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \ - Uint32 s = *srcp; \ - Uint32 d = *dstp; \ - Uint32 s1 = s & 0xff00ff; \ - Uint32 d1 = d & 0xff00ff; \ - d1 = (d1 + ((s1 - d1) * alpha >> 8)) \ - & 0xff00ff; \ - s &= 0xff00; \ - d &= 0xff00; \ - d = (d + ((s - d) * alpha >> 8)) & 0xff00; \ - *dstp = d1 | d | 0xff000000; \ - ++srcp; \ - ++dstp; \ - widthvar--; \ - } - ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); - if (width > 0) { - int extrawidth = (width % 4); - vector unsigned char valigner = VEC_ALIGNER(srcp); - vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp); - width -= extrawidth; - while (width) { - vector unsigned char voverflow; - vector unsigned char vd; - - /* s = *srcp */ - voverflow = (vector unsigned char) vec_ld(15, srcp); - vs = vec_perm(vs, voverflow, valigner); - - /* d = *dstp */ - vd = (vector unsigned char) vec_ld(0, dstp); - - VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); - - /* set the alpha channel to full on */ - vd = vec_or(vd, valphamask); - - /* *dstp = res */ - vec_st((vector unsigned int) vd, 0, dstp); - - srcp += 4; - dstp += 4; - width -= 4; - vs = voverflow; - } - ONE_PIXEL_BLEND((extrawidth), extrawidth); - } -#undef ONE_PIXEL_BLEND - - srcp += srcskip; - dstp += dstskip; - } -} - -#if __MWERKS__ -#pragma altivec_model off -#endif -#endif /* SDL_ALTIVEC_BLITTERS */ - /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */ static void BlitRGBtoRGBSurfaceAlpha128(SDL_BlitInfo * info) @@ -1338,79 +538,6 @@ } } -#ifdef __3dNOW__ -/* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */ -static void -BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo * info) -{ - int width = info->dst_w; - int height = info->dst_h; - Uint32 *srcp = (Uint32 *) info->src; - int srcskip = info->src_skip >> 2; - Uint32 *dstp = (Uint32 *) info->dst; - int dstskip = info->dst_skip >> 2; - SDL_PixelFormat *sf = info->src_fmt; - Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask; - Uint32 amask = sf->Amask; - Uint32 ashift = sf->Ashift; - Uint64 multmask; - - __m64 src1, dst1, mm_alpha, mm_zero, dmask; - - mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ - multmask = 0xFFFF; - multmask <<= (ashift * 2); - multmask = ~multmask; - dmask = *(__m64 *) & multmask; /* dst alpha mask -> dmask */ - - while (height--) { - /* *INDENT-OFF* */ - DUFFS_LOOP4({ - Uint32 alpha; - - _m_prefetch(srcp + 16); - _m_prefetch(dstp + 16); - - alpha = *srcp & amask; - if (alpha == 0) { - /* do nothing */ - } else if (alpha == amask) { - /* copy RGB, keep dst alpha */ - *dstp = (*srcp & chanmask) | (*dstp & ~chanmask); - } else { - src1 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src1 (0000ARGB)*/ - src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */ - - dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/ - dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */ - - mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */ - mm_alpha = _mm_srli_si64(mm_alpha, ashift); /* mm_alpha >> ashift -> mm_alpha(0000000A) */ - mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ - mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ - mm_alpha = _mm_and_si64(mm_alpha, dmask); /* 000A0A0A -> mm_alpha, preserve dst alpha on add */ - - /* blend */ - src1 = _mm_sub_pi16(src1, dst1);/* src - dst -> src1 */ - src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src - dst) * alpha -> src1 */ - src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */ - dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst) -> dst1(0A0R0G0B) */ - dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */ - - *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */ - } - ++srcp; - ++dstp; - }, width); - /* *INDENT-ON* */ - srcp += srcskip; - dstp += dstskip; - } - _mm_empty(); -} - -#endif /* __MMX__ */ - /* 16bpp special case for per-surface alpha=50%: blend 2 pixels in parallel */ /* blend a single 16 bit pixel at 50% */ @@ -2130,17 +1257,10 @@ return BlitNto1PixelAlpha; case 2: -#if SDL_ALTIVEC_BLITTERS - if (sf->BytesPerPixel == 4 - && df->Gmask == 0x7e0 && df->Bmask == 0x1f - && SDL_HasAltiVec()) - return Blit32to565PixelAlphaAltivec; - else -#endif - if (sf->BytesPerPixel == 4 && sf->Amask == 0xff000000 - && sf->Gmask == 0xff00 - && ((sf->Rmask == 0xff && df->Rmask == 0x1f) - || (sf->Bmask == 0xff && df->Bmask == 0x1f))) { + if (sf->BytesPerPixel == 4 && sf->Amask == 0xff000000 + && sf->Gmask == 0xff00 + && ((sf->Rmask == 0xff && df->Rmask == 0x1f) + || (sf->Bmask == 0xff && df->Bmask == 0x1f))) { if (df->Gmask == 0x7e0) return BlitARGBto565PixelAlpha; else if (df->Gmask == 0x3e0) @@ -2152,35 +1272,20 @@ if (sf->Rmask == df->Rmask && sf->Gmask == df->Gmask && sf->Bmask == df->Bmask && sf->BytesPerPixel == 4) { -#if defined(__MMX__) || defined(__3dNOW__) +#if defined(__MMX__) if (sf->Rshift % 8 == 0 && sf->Gshift % 8 == 0 && sf->Bshift % 8 == 0 && sf->Ashift % 8 == 0 && sf->Aloss == 0) { -#ifdef __3dNOW__ - if (SDL_Has3DNow()) - return BlitRGBtoRGBPixelAlphaMMX3DNOW; -#endif -#ifdef __MMX__ if (SDL_HasMMX()) return BlitRGBtoRGBPixelAlphaMMX; -#endif } -#endif /* __MMX__ || __3dNOW__ */ +#endif /* __MMX__ */ if (sf->Amask == 0xff000000) { -#if SDL_ALTIVEC_BLITTERS - if (SDL_HasAltiVec()) - return BlitRGBtoRGBPixelAlphaAltivec; -#endif return BlitRGBtoRGBPixelAlpha; } } -#if SDL_ALTIVEC_BLITTERS - if (sf->Amask && sf->BytesPerPixel == 4 && SDL_HasAltiVec()) - return Blit32to32PixelAlphaAltivec; - else -#endif - return BlitNtoNPixelAlpha; + return BlitNtoNPixelAlpha; case 3: default: @@ -2226,19 +1331,10 @@ return BlitRGBtoRGBSurfaceAlphaMMX; #endif if ((sf->Rmask | sf->Gmask | sf->Bmask) == 0xffffff) { -#if SDL_ALTIVEC_BLITTERS - if (SDL_HasAltiVec()) - return BlitRGBtoRGBSurfaceAlphaAltivec; -#endif return BlitRGBtoRGBSurfaceAlpha; } } -#if SDL_ALTIVEC_BLITTERS - if ((sf->BytesPerPixel == 4) && SDL_HasAltiVec()) - return Blit32to32SurfaceAlphaAltivec; - else -#endif - return BlitNtoNSurfaceAlpha; + return BlitNtoNSurfaceAlpha; case 3: default: @@ -2252,12 +1348,6 @@ if (df->BytesPerPixel == 1) return BlitNto1SurfaceAlphaKey; else -#if SDL_ALTIVEC_BLITTERS - if (sf->BytesPerPixel == 4 && df->BytesPerPixel == 4 && - SDL_HasAltiVec()) - return Blit32to32SurfaceAlphaKeyAltivec; - else -#endif return BlitNtoNSurfaceAlphaKey; } break;