Mercurial > sdl-ios-xcode
view src/video/SDL_blit_N.c @ 4872:231f8a1c5edd
Whoops, return "" even if the window is invalid.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 29 Aug 2010 16:28:04 -0700 |
| parents | f7b03b6838cb |
| children | 6a65c1fc07af |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2010 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #include "SDL_video.h" #include "SDL_endian.h" #include "SDL_cpuinfo.h" #include "SDL_blit.h" /* Functions to blit from N-bit surfaces to other surfaces */ #if SDL_ALTIVEC_BLITTERS #if __MWERKS__ #pragma altivec_model on #endif #ifdef HAVE_ALTIVEC_H #include <altivec.h> #endif #define assert(X) #ifdef __MACOSX__ #include <sys/sysctl.h> static size_t GetL3CacheSize(void) { const char key[] = "hw.l3cachesize"; u_int64_t result = 0; size_t typeSize = sizeof(result); int err = sysctlbyname(key, &result, &typeSize, NULL, 0); if (0 != err) return 0; return result; } #else static size_t GetL3CacheSize(void) { /* XXX: Just guess G4 */ return 2097152; } #endif /* __MACOSX__ */ #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 VSWIZZLE32(a,b,c,d) (vector unsigned char) \ ( 0x00+a, 0x00+b, 0x00+c, 0x00+d, \ 0x04+a, 0x04+b, 0x04+c, 0x04+d, \ 0x08+a, 0x08+b, 0x08+c, 0x08+d, \ 0x0C+a, 0x0C+b, 0x0C+c, 0x0C+d ) #define MAKE8888(dstfmt, r, g, b, a) \ ( ((r<<dstfmt->Rshift)&dstfmt->Rmask) | \ ((g<<dstfmt->Gshift)&dstfmt->Gmask) | \ ((b<<dstfmt->Bshift)&dstfmt->Bmask) | \ ((a<<dstfmt->Ashift)&dstfmt->Amask) ) /* * Data Stream Touch...Altivec cache prefetching. * * Don't use this on a G5...however, the speed boost is very significant * on a G4. */ #define DST_CHAN_SRC 1 #define DST_CHAN_DEST 2 /* macro to set DST control word value... */ #define DST_CTRL(size, count, stride) \ (((size) << 24) | ((count) << 16) | (stride)) #define VEC_ALIGNER(src) ((UNALIGNED_PTR(src)) \ ? vec_lvsl(0, src) \ : vec_add(vec_lvsl(8, src), vec_splat_u8(8))) /* 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 const struct SDL_PixelFormat default_pixel_format = { NULL, 32, 4, 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 Blit_RGB888_RGB565(SDL_BlitInfo * info); static void Blit_RGB888_RGB565Altivec(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 valpha = vec_splat_u8(0); vector unsigned char vpermute = calc_swizzle32(srcfmt, NULL); vector unsigned char vgmerge = VECUINT8_LITERAL(0x00, 0x02, 0x00, 0x06, 0x00, 0x0a, 0x00, 0x0e, 0x00, 0x12, 0x00, 0x16, 0x00, 0x1a, 0x00, 0x1e); vector unsigned short v1 = vec_splat_u16(1); vector unsigned short v3 = vec_splat_u16(3); 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); vector unsigned short vf800 = (vector unsigned short) vec_splat_u8(-7); vf800 = vec_sl(vf800, vec_splat_u16(8)); while (height--) { vector unsigned char valigner; vector unsigned char voverflow; vector unsigned char vsrc; int width = info->dst_w; int extrawidth; /* do scalar until we can align... */ #define ONE_PIXEL_BLEND(condition, widthvar) \ while (condition) { \ Uint32 Pixel; \ unsigned sR, sG, sB, sA; \ DISEMBLE_RGBA((Uint8 *)src, 4, srcfmt, Pixel, \ sR, sG, sB, sA); \ *(Uint16 *)(dst) = (((sR << 8) & 0x0000F800) | \ ((sG << 3) & 0x000007E0) | \ ((sB >> 3) & 0x0000001F)); \ dst += 2; \ src += 4; \ widthvar--; \ } ONE_PIXEL_BLEND(((UNALIGNED_PTR(dst)) && (width)), width); /* After all that work, here's the vector part! */ extrawidth = (width % 8); /* trailing unaligned stores */ width -= extrawidth; vsrc = vec_ld(0, src); valigner = VEC_ALIGNER(src); while (width) { vector unsigned short vpixel, vrpixel, vgpixel, vbpixel; vector unsigned int vsrc1, vsrc2; vector unsigned char vdst; voverflow = vec_ld(15, src); vsrc = vec_perm(vsrc, voverflow, valigner); vsrc1 = (vector unsigned int) vec_perm(vsrc, valpha, vpermute); src += 16; vsrc = voverflow; voverflow = vec_ld(15, src); vsrc = vec_perm(vsrc, voverflow, valigner); vsrc2 = (vector unsigned int) vec_perm(vsrc, valpha, vpermute); /* 1555 */ vpixel = (vector unsigned short) vec_packpx(vsrc1, vsrc2); vgpixel = (vector unsigned short) vec_perm(vsrc1, vsrc2, vgmerge); vgpixel = vec_and(vgpixel, vfc); vgpixel = vec_sl(vgpixel, v3); vrpixel = vec_sl(vpixel, v1); vrpixel = vec_and(vrpixel, vf800); vbpixel = vec_and(vpixel, v3f); vdst = vec_or((vector unsigned char) vrpixel, (vector unsigned char) vgpixel); /* 565 */ vdst = vec_or(vdst, (vector unsigned char) vbpixel); vec_st(vdst, 0, dst); width -= 8; src += 16; dst += 16; vsrc = voverflow; } assert(width == 0); /* do scalar until we can align... */ ONE_PIXEL_BLEND((extrawidth), extrawidth); #undef ONE_PIXEL_BLEND src += srcskip; /* move to next row, accounting for pitch. */ dst += dstskip; } } static void Blit_RGB565_32Altivec(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; SDL_PixelFormat *dstfmt = info->dst_fmt; unsigned alpha; vector unsigned char valpha; vector unsigned char vpermute; vector unsigned short vf800; vector unsigned int v8 = vec_splat_u32(8); vector unsigned int v16 = vec_add(v8, v8); vector unsigned short v2 = vec_splat_u16(2); vector unsigned short v3 = vec_splat_u16(3); /* 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, v16)) ); /* 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) ); /* 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, v8)) ); assert(srcfmt->BytesPerPixel == 2); assert(dstfmt->BytesPerPixel == 4); vf800 = (vector unsigned short) vec_splat_u8(-7); vf800 = vec_sl(vf800, vec_splat_u16(8)); if (dstfmt->Amask && info->a) { ((unsigned char *) &valpha)[0] = alpha = info->a; valpha = vec_splat(valpha, 0); } else { alpha = 0; valpha = vec_splat_u8(0); } vpermute = calc_swizzle32(NULL, dstfmt); while (height--) { vector unsigned char valigner; vector unsigned char voverflow; vector unsigned char vsrc; int width = info->dst_w; int extrawidth; /* do scalar until we can align... */ #define ONE_PIXEL_BLEND(condition, widthvar) \ while (condition) { \ unsigned sR, sG, sB; \ unsigned short Pixel = *((unsigned short *)src); \ sR = (Pixel >> 8) & 0xf8; \ sG = (Pixel >> 3) & 0xfc; \ sB = (Pixel << 3) & 0xf8; \ ASSEMBLE_RGBA(dst, 4, dstfmt, sR, sG, sB, alpha); \ src += 2; \ dst += 4; \ widthvar--; \ } ONE_PIXEL_BLEND(((UNALIGNED_PTR(dst)) && (width)), width); /* After all that work, here's the vector part! */ extrawidth = (width % 8); /* trailing unaligned stores */ width -= extrawidth; vsrc = vec_ld(0, src); valigner = VEC_ALIGNER(src); while (width) { vector unsigned short vR, vG, vB; vector unsigned char vdst1, vdst2; voverflow = vec_ld(15, src); vsrc = vec_perm(vsrc, voverflow, valigner); vR = vec_and((vector unsigned short) vsrc, vf800); vB = vec_sl((vector unsigned short) vsrc, v3); vG = vec_sl(vB, v2); vdst1 = (vector unsigned char) vec_perm((vector unsigned char) vR, valpha, vredalpha1); vdst1 = vec_perm(vdst1, (vector unsigned char) vB, vblue1); vdst1 = vec_perm(vdst1, (vector unsigned char) vG, vgreen1); vdst1 = vec_perm(vdst1, valpha, vpermute); vec_st(vdst1, 0, dst); vdst2 = (vector unsigned char) vec_perm((vector unsigned char) vR, valpha, vredalpha2); vdst2 = vec_perm(vdst2, (vector unsigned char) vB, vblue2); vdst2 = vec_perm(vdst2, (vector unsigned char) vG, vgreen2); vdst2 = vec_perm(vdst2, valpha, vpermute); vec_st(vdst2, 16, dst); width -= 8; dst += 32; src += 16; vsrc = voverflow; } assert(width == 0); /* do scalar until we can align... */ ONE_PIXEL_BLEND((extrawidth), extrawidth); #undef ONE_PIXEL_BLEND src += srcskip; /* move to next row, accounting for pitch. */ dst += dstskip; } } static void Blit_RGB555_32Altivec(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; SDL_PixelFormat *dstfmt = info->dst_fmt; unsigned alpha; vector unsigned char valpha; vector unsigned char vpermute; vector unsigned short vf800; vector unsigned int v8 = vec_splat_u32(8); vector unsigned int v16 = vec_add(v8, v8); vector unsigned short v1 = vec_splat_u16(1); vector unsigned short v3 = vec_splat_u16(3); /* 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, v16)) ); /* 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) ); /* 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, v8)) ); assert(srcfmt->BytesPerPixel == 2); assert(dstfmt->BytesPerPixel == 4); vf800 = (vector unsigned short) vec_splat_u8(-7); vf800 = vec_sl(vf800, vec_splat_u16(8)); if (dstfmt->Amask && info->a) { ((unsigned char *) &valpha)[0] = alpha = info->a; valpha = vec_splat(valpha, 0); } else { alpha = 0; valpha = vec_splat_u8(0); } vpermute = calc_swizzle32(NULL, dstfmt); while (height--) { vector unsigned char valigner; vector unsigned char voverflow; vector unsigned char vsrc; int width = info->dst_w; int extrawidth; /* do scalar until we can align... */ #define ONE_PIXEL_BLEND(condition, widthvar) \ while (condition) { \ unsigned sR, sG, sB; \ unsigned short Pixel = *((unsigned short *)src); \ sR = (Pixel >> 7) & 0xf8; \ sG = (Pixel >> 2) & 0xf8; \ sB = (Pixel << 3) & 0xf8; \ ASSEMBLE_RGBA(dst, 4, dstfmt, sR, sG, sB, alpha); \ src += 2; \ dst += 4; \ widthvar--; \ } ONE_PIXEL_BLEND(((UNALIGNED_PTR(dst)) && (width)), width); /* After all that work, here's the vector part! */ extrawidth = (width % 8); /* trailing unaligned stores */ width -= extrawidth; vsrc = vec_ld(0, src); valigner = VEC_ALIGNER(src); while (width) { vector unsigned short vR, vG, vB; vector unsigned char vdst1, vdst2; voverflow = vec_ld(15, src); vsrc = vec_perm(vsrc, voverflow, valigner); vR = vec_and(vec_sl((vector unsigned short) vsrc, v1), vf800); vB = vec_sl((vector unsigned short) vsrc, v3); vG = vec_sl(vB, v3); vdst1 = (vector unsigned char) vec_perm((vector unsigned char) vR, valpha, vredalpha1); vdst1 = vec_perm(vdst1, (vector unsigned char) vB, vblue1); vdst1 = vec_perm(vdst1, (vector unsigned char) vG, vgreen1); vdst1 = vec_perm(vdst1, valpha, vpermute); vec_st(vdst1, 0, dst); vdst2 = (vector unsigned char) vec_perm((vector unsigned char) vR, valpha, vredalpha2); vdst2 = vec_perm(vdst2, (vector unsigned char) vB, vblue2); vdst2 = vec_perm(vdst2, (vector unsigned char) vG, vgreen2); vdst2 = vec_perm(vdst2, valpha, vpermute); vec_st(vdst2, 16, dst); width -= 8; dst += 32; src += 16; vsrc = voverflow; } assert(width == 0); /* do scalar until we can align... */ ONE_PIXEL_BLEND((extrawidth), extrawidth); #undef ONE_PIXEL_BLEND src += srcskip; /* move to next row, accounting for pitch. */ dst += dstskip; } } static void BlitNtoNKey(SDL_BlitInfo * info); static void BlitNtoNKeyCopyAlpha(SDL_BlitInfo * info); static void Blit32to32KeyAltivec(SDL_BlitInfo * info) { int height = info->dst_h; Uint32 *srcp = (Uint32 *) info->src; int srcskip = info->src_skip / 4; Uint32 *dstp = (Uint32 *) info->dst; int dstskip = info->dst_skip / 4; SDL_PixelFormat *srcfmt = info->src_fmt; int srcbpp = srcfmt->BytesPerPixel; SDL_PixelFormat *dstfmt = info->dst_fmt; int dstbpp = dstfmt->BytesPerPixel; int copy_alpha = (srcfmt->Amask && dstfmt->Amask); unsigned alpha = dstfmt->Amask ? info->a : 0; Uint32 rgbmask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask; Uint32 ckey = info->colorkey; vector unsigned int valpha; vector unsigned char vpermute; vector unsigned char vzero; vector unsigned int vckey; vector unsigned int vrgbmask; vpermute = calc_swizzle32(srcfmt, dstfmt); if (info->dst_w < 16) { if (copy_alpha) { BlitNtoNKeyCopyAlpha(info); } else { BlitNtoNKey(info); } return; } vzero = vec_splat_u8(0); if (alpha) { ((unsigned char *) &valpha)[0] = (unsigned char) alpha; valpha = (vector unsigned int) vec_splat((vector unsigned char) valpha, 0); } else { valpha = (vector unsigned int) vzero; } 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--) { #define ONE_PIXEL_BLEND(condition, widthvar) \ if (copy_alpha) { \ while (condition) { \ Uint32 Pixel; \ unsigned sR, sG, sB, sA; \ DISEMBLE_RGBA((Uint8 *)srcp, srcbpp, srcfmt, Pixel, \ sR, sG, sB, sA); \ if ( (Pixel & rgbmask) != ckey ) { \ ASSEMBLE_RGBA((Uint8 *)dstp, dstbpp, dstfmt, \ sR, sG, sB, sA); \ } \ dstp = (Uint32 *) (((Uint8 *) dstp) + dstbpp); \ srcp = (Uint32 *) (((Uint8 *) srcp) + srcbpp); \ widthvar--; \ } \ } else { \ while (condition) { \ Uint32 Pixel; \ unsigned sR, sG, sB; \ RETRIEVE_RGB_PIXEL((Uint8 *)srcp, srcbpp, Pixel); \ if ( Pixel != ckey ) { \ RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB); \ ASSEMBLE_RGBA((Uint8 *)dstp, dstbpp, dstfmt, \ sR, sG, sB, alpha); \ } \ dstp = (Uint32 *) (((Uint8 *)dstp) + dstbpp); \ srcp = (Uint32 *) (((Uint8 *)srcp) + srcbpp); \ widthvar--; \ } \ } int width = info->dst_w; ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); assert(width > 0); if (width > 0) { int extrawidth = (width % 4); vector unsigned char valigner = VEC_ALIGNER(srcp); vector unsigned int vs = vec_ld(0, srcp); width -= extrawidth; assert(width >= 4); while (width) { vector unsigned char vsel; vector unsigned int vd; vector unsigned int voverflow = vec_ld(15, srcp); /* load the source vec */ vs = vec_perm(vs, voverflow, valigner); /* vsel is set for items that match the key */ vsel = (vector unsigned char) vec_and(vs, vrgbmask); vsel = (vector unsigned char) vec_cmpeq(vs, vckey); /* permute the src vec to the dest format */ vs = vec_perm(vs, valpha, vpermute); /* load the destination vec */ vd = vec_ld(0, dstp); /* select the source and dest into vs */ vd = (vector unsigned int) vec_sel((vector unsigned char) vs, (vector unsigned char) vd, vsel); vec_st(vd, 0, dstp); srcp += 4; width -= 4; dstp += 4; vs = voverflow; } ONE_PIXEL_BLEND((extrawidth), extrawidth); #undef ONE_PIXEL_BLEND srcp += srcskip; dstp += dstskip; } } } /* Altivec code to swizzle one 32-bit surface to a different 32-bit format. */ /* Use this on a G5 */ static void ConvertAltivec32to32_noprefetch(SDL_BlitInfo * info) { int height = info->dst_h; Uint32 *src = (Uint32 *) info->src; int srcskip = info->src_skip / 4; Uint32 *dst = (Uint32 *) info->dst; int dstskip = info->dst_skip / 4; SDL_PixelFormat *srcfmt = info->src_fmt; SDL_PixelFormat *dstfmt = info->dst_fmt; vector unsigned int vzero = vec_splat_u32(0); vector unsigned char vpermute = calc_swizzle32(srcfmt, dstfmt); if (dstfmt->Amask && !srcfmt->Amask) { if (info->a) { vector unsigned char valpha; ((unsigned char *) &valpha)[0] = info->a; vzero = (vector unsigned int) vec_splat(valpha, 0); } } assert(srcfmt->BytesPerPixel == 4); assert(dstfmt->BytesPerPixel == 4); while (height--) { vector unsigned char valigner; vector unsigned int vbits; vector unsigned int voverflow; Uint32 bits; Uint8 r, g, b, a; int width = info->dst_w; int extrawidth; /* do scalar until we can align... */ while ((UNALIGNED_PTR(dst)) && (width)) { bits = *(src++); RGBA_FROM_8888(bits, srcfmt, r, g, b, a); *(dst++) = MAKE8888(dstfmt, r, g, b, a); width--; } /* After all that work, here's the vector part! */ extrawidth = (width % 4); width -= extrawidth; valigner = VEC_ALIGNER(src); vbits = vec_ld(0, src); while (width) { voverflow = vec_ld(15, src); src += 4; width -= 4; vbits = vec_perm(vbits, voverflow, valigner); /* src is ready. */ vbits = vec_perm(vbits, vzero, vpermute); /* swizzle it. */ vec_st(vbits, 0, dst); /* store it back out. */ dst += 4; vbits = voverflow; } assert(width == 0); /* cover pixels at the end of the row that didn't fit in 16 bytes. */ while (extrawidth) { bits = *(src++); /* max 7 pixels, don't bother with prefetch. */ RGBA_FROM_8888(bits, srcfmt, r, g, b, a); *(dst++) = MAKE8888(dstfmt, r, g, b, a); extrawidth--; } src += srcskip; dst += dstskip; } } /* Altivec code to swizzle one 32-bit surface to a different 32-bit format. */ /* Use this on a G4 */ static void ConvertAltivec32to32_prefetch(SDL_BlitInfo * info) { const int scalar_dst_lead = sizeof(Uint32) * 4; const int vector_dst_lead = sizeof(Uint32) * 16; int height = info->dst_h; Uint32 *src = (Uint32 *) info->src; int srcskip = info->src_skip / 4; Uint32 *dst = (Uint32 *) info->dst; int dstskip = info->dst_skip / 4; SDL_PixelFormat *srcfmt = info->src_fmt; SDL_PixelFormat *dstfmt = info->dst_fmt; vector unsigned int vzero = vec_splat_u32(0); vector unsigned char vpermute = calc_swizzle32(srcfmt, dstfmt); if (dstfmt->Amask && !srcfmt->Amask) { if (info->a) { vector unsigned char valpha; ((unsigned char *) &valpha)[0] = info->a; vzero = (vector unsigned int) vec_splat(valpha, 0); } } assert(srcfmt->BytesPerPixel == 4); assert(dstfmt->BytesPerPixel == 4); while (height--) { vector unsigned char valigner; vector unsigned int vbits; vector unsigned int voverflow; Uint32 bits; Uint8 r, g, b, a; int width = info->dst_w; int extrawidth; /* do scalar until we can align... */ while ((UNALIGNED_PTR(dst)) && (width)) { vec_dstt(src + scalar_dst_lead, DST_CTRL(2, 32, 1024), DST_CHAN_SRC); vec_dstst(dst + scalar_dst_lead, DST_CTRL(2, 32, 1024), DST_CHAN_DEST); bits = *(src++); RGBA_FROM_8888(bits, srcfmt, r, g, b, a); *(dst++) = MAKE8888(dstfmt, r, g, b, a); width--; } /* After all that work, here's the vector part! */ extrawidth = (width % 4); width -= extrawidth; valigner = VEC_ALIGNER(src); vbits = vec_ld(0, src); while (width) { vec_dstt(src + vector_dst_lead, DST_CTRL(2, 32, 1024), DST_CHAN_SRC); vec_dstst(dst + vector_dst_lead, DST_CTRL(2, 32, 1024), DST_CHAN_DEST); voverflow = vec_ld(15, src); src += 4; width -= 4; vbits = vec_perm(vbits, voverflow, valigner); /* src is ready. */ vbits = vec_perm(vbits, vzero, vpermute); /* swizzle it. */ vec_st(vbits, 0, dst); /* store it back out. */ dst += 4; vbits = voverflow; } assert(width == 0); /* cover pixels at the end of the row that didn't fit in 16 bytes. */ while (extrawidth) { bits = *(src++); /* max 7 pixels, don't bother with prefetch. */ RGBA_FROM_8888(bits, srcfmt, r, g, b, a); *(dst++) = MAKE8888(dstfmt, r, g, b, a); extrawidth--; } src += srcskip; dst += dstskip; } vec_dss(DST_CHAN_SRC); vec_dss(DST_CHAN_DEST); } static Uint32 GetBlitFeatures(void) { static Uint32 features = 0xffffffff; if (features == 0xffffffff) { /* Provide an override for testing .. */ char *override = SDL_getenv("SDL_ALTIVEC_BLIT_FEATURES"); if (override) { features = 0; SDL_sscanf(override, "%u", &features); } else { features = (0 /* Feature 1 is has-MMX */ | ((SDL_HasMMX())? 1 : 0) /* Feature 2 is has-AltiVec */ | ((SDL_HasAltiVec())? 2 : 0) /* Feature 4 is dont-use-prefetch */ /* !!!! FIXME: Check for G5 or later, not the cache size! Always prefetch on a G4. */ | ((GetL3CacheSize() == 0) ? 4 : 0) ); } } return features; } #if __MWERKS__ #pragma altivec_model off #endif #else /* Feature 1 is has-MMX */ #define GetBlitFeatures() ((Uint32)(SDL_HasMMX() ? 1 : 0)) #endif /* This is now endian dependent */ #if SDL_BYTEORDER == SDL_LIL_ENDIAN #define HI 1 #define LO 0 #else /* SDL_BYTEORDER == SDL_BIG_ENDIAN */ #define HI 0 #define LO 1 #endif /* Special optimized blit for RGB 8-8-8 --> RGB 3-3-2 */ #define RGB888_RGB332(dst, src) { \ dst = (Uint8)((((src)&0x00E00000)>>16)| \ (((src)&0x0000E000)>>11)| \ (((src)&0x000000C0)>>6)); \ } static void Blit_RGB888_index8(SDL_BlitInfo * info) { #ifndef USE_DUFFS_LOOP int c; #endif int width, height; Uint32 *src; const Uint8 *map; Uint8 *dst; int srcskip, dstskip; /* Set up some basic variables */ width = info->dst_w; height = info->dst_h; src = (Uint32 *) info->src; srcskip = info->src_skip / 4; dst = info->dst; dstskip = info->dst_skip; map = info->table; if (map == NULL) { while (height--) { #ifdef USE_DUFFS_LOOP /* *INDENT-OFF* */ DUFFS_LOOP( RGB888_RGB332(*dst++, *src); , width); /* *INDENT-ON* */ #else for (c = width / 4; c; --c) { /* Pack RGB into 8bit pixel */ ++src; RGB888_RGB332(*dst++, *src); ++src; RGB888_RGB332(*dst++, *src); ++src; RGB888_RGB332(*dst++, *src); ++src; } switch (width & 3) { case 3: RGB888_RGB332(*dst++, *src); ++src; case 2: RGB888_RGB332(*dst++, *src); ++src; case 1: RGB888_RGB332(*dst++, *src); ++src; } #endif /* USE_DUFFS_LOOP */ src += srcskip; dst += dstskip; } } else { int Pixel; while (height--) { #ifdef USE_DUFFS_LOOP /* *INDENT-OFF* */ DUFFS_LOOP( RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; , width); /* *INDENT-ON* */ #else for (c = width / 4; c; --c) { /* Pack RGB into 8bit pixel */ RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; } switch (width & 3) { case 3: RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; case 2: RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; case 1: RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; } #endif /* USE_DUFFS_LOOP */ src += srcskip; dst += dstskip; } } } /* Special optimized blit for RGB 8-8-8 --> RGB 5-5-5 */ #define RGB888_RGB555(dst, src) { \ *(Uint16 *)(dst) = (Uint16)((((*src)&0x00F80000)>>9)| \ (((*src)&0x0000F800)>>6)| \ (((*src)&0x000000F8)>>3)); \ } #define RGB888_RGB555_TWO(dst, src) { \ *(Uint32 *)(dst) = (((((src[HI])&0x00F80000)>>9)| \ (((src[HI])&0x0000F800)>>6)| \ (((src[HI])&0x000000F8)>>3))<<16)| \ (((src[LO])&0x00F80000)>>9)| \ (((src[LO])&0x0000F800)>>6)| \ (((src[LO])&0x000000F8)>>3); \ } static void Blit_RGB888_RGB555(SDL_BlitInfo * info) { #ifndef USE_DUFFS_LOOP int c; #endif int width, height; Uint32 *src; Uint16 *dst; int srcskip, dstskip; /* Set up some basic variables */ width = info->dst_w; height = info->dst_h; src = (Uint32 *) info->src; srcskip = info->src_skip / 4; dst = (Uint16 *) info->dst; dstskip = info->dst_skip / 2; #ifdef USE_DUFFS_LOOP while (height--) { /* *INDENT-OFF* */ DUFFS_LOOP( RGB888_RGB555(dst, src); ++src; ++dst; , width); /* *INDENT-ON* */ src += srcskip; dst += dstskip; } #else /* Memory align at 4-byte boundary, if necessary */ if ((long) dst & 0x03) { /* Don't do anything if width is 0 */ if (width == 0) { return; } --width; while (height--) { /* Perform copy alignment */ RGB888_RGB555(dst, src); ++src; ++dst; /* Copy in 4 pixel chunks */ for (c = width / 4; c; --c) { RGB888_RGB555_TWO(dst, src); src += 2; dst += 2; RGB888_RGB555_TWO(dst, src); src += 2; dst += 2; } /* Get any leftovers */ switch (width & 3) { case 3: RGB888_RGB555(dst, src); ++src; ++dst; case 2: RGB888_RGB555_TWO(dst, src); src += 2; dst += 2; break; case 1: RGB888_RGB555(dst, src); ++src; ++dst; break; } src += srcskip; dst += dstskip; } } else { while (height--) { /* Copy in 4 pixel chunks */ for (c = width / 4; c; --c) { RGB888_RGB555_TWO(dst, src); src += 2; dst += 2; RGB888_RGB555_TWO(dst, src); src += 2; dst += 2; } /* Get any leftovers */ switch (width & 3) { case 3: RGB888_RGB555(dst, src); ++src; ++dst; case 2: RGB888_RGB555_TWO(dst, src); src += 2; dst += 2; break; case 1: RGB888_RGB555(dst, src); ++src; ++dst; break; } src += srcskip; dst += dstskip; } } #endif /* USE_DUFFS_LOOP */ } /* Special optimized blit for RGB 8-8-8 --> RGB 5-6-5 */ #define RGB888_RGB565(dst, src) { \ *(Uint16 *)(dst) = (Uint16)((((*src)&0x00F80000)>>8)| \ (((*src)&0x0000FC00)>>5)| \ (((*src)&0x000000F8)>>3)); \ } #define RGB888_RGB565_TWO(dst, src) { \ *(Uint32 *)(dst) = (((((src[HI])&0x00F80000)>>8)| \ (((src[HI])&0x0000FC00)>>5)| \ (((src[HI])&0x000000F8)>>3))<<16)| \ (((src[LO])&0x00F80000)>>8)| \ (((src[LO])&0x0000FC00)>>5)| \ (((src[LO])&0x000000F8)>>3); \ } static void Blit_RGB888_RGB565(SDL_BlitInfo * info) { #ifndef USE_DUFFS_LOOP int c; #endif int width, height; Uint32 *src; Uint16 *dst; int srcskip, dstskip; /* Set up some basic variables */ width = info->dst_w; height = info->dst_h; src = (Uint32 *) info->src; srcskip = info->src_skip / 4; dst = (Uint16 *) info->dst; dstskip = info->dst_skip / 2; #ifdef USE_DUFFS_LOOP while (height--) { /* *INDENT-OFF* */ DUFFS_LOOP( RGB888_RGB565(dst, src); ++src; ++dst; , width); /* *INDENT-ON* */ src += srcskip; dst += dstskip; } #else /* Memory align at 4-byte boundary, if necessary */ if ((long) dst & 0x03) { /* Don't do anything if width is 0 */ if (width == 0) { return; } --width; while (height--) { /* Perform copy alignment */ RGB888_RGB565(dst, src); ++src; ++dst; /* Copy in 4 pixel chunks */ for (c = width / 4; c; --c) { RGB888_RGB565_TWO(dst, src); src += 2; dst += 2; RGB888_RGB565_TWO(dst, src); src += 2; dst += 2; } /* Get any leftovers */ switch (width & 3) { case 3: RGB888_RGB565(dst, src); ++src; ++dst; case 2: RGB888_RGB565_TWO(dst, src); src += 2; dst += 2; break; case 1: RGB888_RGB565(dst, src); ++src; ++dst; break; } src += srcskip; dst += dstskip; } } else { while (height--) { /* Copy in 4 pixel chunks */ for (c = width / 4; c; --c) { RGB888_RGB565_TWO(dst, src); src += 2; dst += 2; RGB888_RGB565_TWO(dst, src); src += 2; dst += 2; } /* Get any leftovers */ switch (width & 3) { case 3: RGB888_RGB565(dst, src); ++src; ++dst; case 2: RGB888_RGB565_TWO(dst, src); src += 2; dst += 2; break; case 1: RGB888_RGB565(dst, src); ++src; ++dst; break; } src += srcskip; dst += dstskip; } } #endif /* USE_DUFFS_LOOP */ } /* Special optimized blit for RGB 5-6-5 --> 32-bit RGB surfaces */ #define RGB565_32(dst, src, map) (map[src[LO]*2] + map[src[HI]*2+1]) static void Blit_RGB565_32(SDL_BlitInfo * info, const Uint32 * map) { #ifndef USE_DUFFS_LOOP int c; #endif int width, height; Uint8 *src; Uint32 *dst; int srcskip, dstskip; /* Set up some basic variables */ width = info->dst_w; height = info->dst_h; src = (Uint8 *) info->src; srcskip = info->src_skip; dst = (Uint32 *) info->dst; dstskip = info->dst_skip / 4; #ifdef USE_DUFFS_LOOP while (height--) { /* *INDENT-OFF* */ DUFFS_LOOP( { *dst++ = RGB565_32(dst, src, map); src += 2; }, width); /* *INDENT-ON* */ src += srcskip; dst += dstskip; } #else while (height--) { /* Copy in 4 pixel chunks */ for (c = width / 4; c; --c) { *dst++ = RGB565_32(dst, src, map); src += 2; *dst++ = RGB565_32(dst, src, map); src += 2; *dst++ = RGB565_32(dst, src, map); src += 2; *dst++ = RGB565_32(dst, src, map); src += 2; } /* Get any leftovers */ switch (width & 3) { case 3: *dst++ = RGB565_32(dst, src, map); src += 2; case 2: *dst++ = RGB565_32(dst, src, map); src += 2; case 1: *dst++ = RGB565_32(dst, src, map); src += 2; break; } src += srcskip; dst += dstskip; } #endif /* USE_DUFFS_LOOP */ } /* Special optimized blit for RGB 5-6-5 --> ARGB 8-8-8-8 */ static const Uint32 RGB565_ARGB8888_LUT[512] = { 0x00000000, 0xff000000, 0x00000008, 0xff002000, 0x00000010, 0xff004000, 0x00000018, 0xff006100, 0x00000020, 0xff008100, 0x00000029, 0xff00a100, 0x00000031, 0xff00c200, 0x00000039, 0xff00e200, 0x00000041, 0xff080000, 0x0000004a, 0xff082000, 0x00000052, 0xff084000, 0x0000005a, 0xff086100, 0x00000062, 0xff088100, 0x0000006a, 0xff08a100, 0x00000073, 0xff08c200, 0x0000007b, 0xff08e200, 0x00000083, 0xff100000, 0x0000008b, 0xff102000, 0x00000094, 0xff104000, 0x0000009c, 0xff106100, 0x000000a4, 0xff108100, 0x000000ac, 0xff10a100, 0x000000b4, 0xff10c200, 0x000000bd, 0xff10e200, 0x000000c5, 0xff180000, 0x000000cd, 0xff182000, 0x000000d5, 0xff184000, 0x000000de, 0xff186100, 0x000000e6, 0xff188100, 0x000000ee, 0xff18a100, 0x000000f6, 0xff18c200, 0x000000ff, 0xff18e200, 0x00000400, 0xff200000, 0x00000408, 0xff202000, 0x00000410, 0xff204000, 0x00000418, 0xff206100, 0x00000420, 0xff208100, 0x00000429, 0xff20a100, 0x00000431, 0xff20c200, 0x00000439, 0xff20e200, 0x00000441, 0xff290000, 0x0000044a, 0xff292000, 0x00000452, 0xff294000, 0x0000045a, 0xff296100, 0x00000462, 0xff298100, 0x0000046a, 0xff29a100, 0x00000473, 0xff29c200, 0x0000047b, 0xff29e200, 0x00000483, 0xff310000, 0x0000048b, 0xff312000, 0x00000494, 0xff314000, 0x0000049c, 0xff316100, 0x000004a4, 0xff318100, 0x000004ac, 0xff31a100, 0x000004b4, 0xff31c200, 0x000004bd, 0xff31e200, 0x000004c5, 0xff390000, 0x000004cd, 0xff392000, 0x000004d5, 0xff394000, 0x000004de, 0xff396100, 0x000004e6, 0xff398100, 0x000004ee, 0xff39a100, 0x000004f6, 0xff39c200, 0x000004ff, 0xff39e200, 0x00000800, 0xff410000, 0x00000808, 0xff412000, 0x00000810, 0xff414000, 0x00000818, 0xff416100, 0x00000820, 0xff418100, 0x00000829, 0xff41a100, 0x00000831, 0xff41c200, 0x00000839, 0xff41e200, 0x00000841, 0xff4a0000, 0x0000084a, 0xff4a2000, 0x00000852, 0xff4a4000, 0x0000085a, 0xff4a6100, 0x00000862, 0xff4a8100, 0x0000086a, 0xff4aa100, 0x00000873, 0xff4ac200, 0x0000087b, 0xff4ae200, 0x00000883, 0xff520000, 0x0000088b, 0xff522000, 0x00000894, 0xff524000, 0x0000089c, 0xff526100, 0x000008a4, 0xff528100, 0x000008ac, 0xff52a100, 0x000008b4, 0xff52c200, 0x000008bd, 0xff52e200, 0x000008c5, 0xff5a0000, 0x000008cd, 0xff5a2000, 0x000008d5, 0xff5a4000, 0x000008de, 0xff5a6100, 0x000008e6, 0xff5a8100, 0x000008ee, 0xff5aa100, 0x000008f6, 0xff5ac200, 0x000008ff, 0xff5ae200, 0x00000c00, 0xff620000, 0x00000c08, 0xff622000, 0x00000c10, 0xff624000, 0x00000c18, 0xff626100, 0x00000c20, 0xff628100, 0x00000c29, 0xff62a100, 0x00000c31, 0xff62c200, 0x00000c39, 0xff62e200, 0x00000c41, 0xff6a0000, 0x00000c4a, 0xff6a2000, 0x00000c52, 0xff6a4000, 0x00000c5a, 0xff6a6100, 0x00000c62, 0xff6a8100, 0x00000c6a, 0xff6aa100, 0x00000c73, 0xff6ac200, 0x00000c7b, 0xff6ae200, 0x00000c83, 0xff730000, 0x00000c8b, 0xff732000, 0x00000c94, 0xff734000, 0x00000c9c, 0xff736100, 0x00000ca4, 0xff738100, 0x00000cac, 0xff73a100, 0x00000cb4, 0xff73c200, 0x00000cbd, 0xff73e200, 0x00000cc5, 0xff7b0000, 0x00000ccd, 0xff7b2000, 0x00000cd5, 0xff7b4000, 0x00000cde, 0xff7b6100, 0x00000ce6, 0xff7b8100, 0x00000cee, 0xff7ba100, 0x00000cf6, 0xff7bc200, 0x00000cff, 0xff7be200, 0x00001000, 0xff830000, 0x00001008, 0xff832000, 0x00001010, 0xff834000, 0x00001018, 0xff836100, 0x00001020, 0xff838100, 0x00001029, 0xff83a100, 0x00001031, 0xff83c200, 0x00001039, 0xff83e200, 0x00001041, 0xff8b0000, 0x0000104a, 0xff8b2000, 0x00001052, 0xff8b4000, 0x0000105a, 0xff8b6100, 0x00001062, 0xff8b8100, 0x0000106a, 0xff8ba100, 0x00001073, 0xff8bc200, 0x0000107b, 0xff8be200, 0x00001083, 0xff940000, 0x0000108b, 0xff942000, 0x00001094, 0xff944000, 0x0000109c, 0xff946100, 0x000010a4, 0xff948100, 0x000010ac, 0xff94a100, 0x000010b4, 0xff94c200, 0x000010bd, 0xff94e200, 0x000010c5, 0xff9c0000, 0x000010cd, 0xff9c2000, 0x000010d5, 0xff9c4000, 0x000010de, 0xff9c6100, 0x000010e6, 0xff9c8100, 0x000010ee, 0xff9ca100, 0x000010f6, 0xff9cc200, 0x000010ff, 0xff9ce200, 0x00001400, 0xffa40000, 0x00001408, 0xffa42000, 0x00001410, 0xffa44000, 0x00001418, 0xffa46100, 0x00001420, 0xffa48100, 0x00001429, 0xffa4a100, 0x00001431, 0xffa4c200, 0x00001439, 0xffa4e200, 0x00001441, 0xffac0000, 0x0000144a, 0xffac2000, 0x00001452, 0xffac4000, 0x0000145a, 0xffac6100, 0x00001462, 0xffac8100, 0x0000146a, 0xffaca100, 0x00001473, 0xffacc200, 0x0000147b, 0xfface200, 0x00001483, 0xffb40000, 0x0000148b, 0xffb42000, 0x00001494, 0xffb44000, 0x0000149c, 0xffb46100, 0x000014a4, 0xffb48100, 0x000014ac, 0xffb4a100, 0x000014b4, 0xffb4c200, 0x000014bd, 0xffb4e200, 0x000014c5, 0xffbd0000, 0x000014cd, 0xffbd2000, 0x000014d5, 0xffbd4000, 0x000014de, 0xffbd6100, 0x000014e6, 0xffbd8100, 0x000014ee, 0xffbda100, 0x000014f6, 0xffbdc200, 0x000014ff, 0xffbde200, 0x00001800, 0xffc50000, 0x00001808, 0xffc52000, 0x00001810, 0xffc54000, 0x00001818, 0xffc56100, 0x00001820, 0xffc58100, 0x00001829, 0xffc5a100, 0x00001831, 0xffc5c200, 0x00001839, 0xffc5e200, 0x00001841, 0xffcd0000, 0x0000184a, 0xffcd2000, 0x00001852, 0xffcd4000, 0x0000185a, 0xffcd6100, 0x00001862, 0xffcd8100, 0x0000186a, 0xffcda100, 0x00001873, 0xffcdc200, 0x0000187b, 0xffcde200, 0x00001883, 0xffd50000, 0x0000188b, 0xffd52000, 0x00001894, 0xffd54000, 0x0000189c, 0xffd56100, 0x000018a4, 0xffd58100, 0x000018ac, 0xffd5a100, 0x000018b4, 0xffd5c200, 0x000018bd, 0xffd5e200, 0x000018c5, 0xffde0000, 0x000018cd, 0xffde2000, 0x000018d5, 0xffde4000, 0x000018de, 0xffde6100, 0x000018e6, 0xffde8100, 0x000018ee, 0xffdea100, 0x000018f6, 0xffdec200, 0x000018ff, 0xffdee200, 0x00001c00, 0xffe60000, 0x00001c08, 0xffe62000, 0x00001c10, 0xffe64000, 0x00001c18, 0xffe66100, 0x00001c20, 0xffe68100, 0x00001c29, 0xffe6a100, 0x00001c31, 0xffe6c200, 0x00001c39, 0xffe6e200, 0x00001c41, 0xffee0000, 0x00001c4a, 0xffee2000, 0x00001c52, 0xffee4000, 0x00001c5a, 0xffee6100, 0x00001c62, 0xffee8100, 0x00001c6a, 0xffeea100, 0x00001c73, 0xffeec200, 0x00001c7b, 0xffeee200, 0x00001c83, 0xfff60000, 0x00001c8b, 0xfff62000, 0x00001c94, 0xfff64000, 0x00001c9c, 0xfff66100, 0x00001ca4, 0xfff68100, 0x00001cac, 0xfff6a100, 0x00001cb4, 0xfff6c200, 0x00001cbd, 0xfff6e200, 0x00001cc5, 0xffff0000, 0x00001ccd, 0xffff2000, 0x00001cd5, 0xffff4000, 0x00001cde, 0xffff6100, 0x00001ce6, 0xffff8100, 0x00001cee, 0xffffa100, 0x00001cf6, 0xffffc200, 0x00001cff, 0xffffe200 }; static void Blit_RGB565_ARGB8888(SDL_BlitInfo * info) { Blit_RGB565_32(info, RGB565_ARGB8888_LUT); } /* Special optimized blit for RGB 5-6-5 --> ABGR 8-8-8-8 */ static const Uint32 RGB565_ABGR8888_LUT[512] = { 0xff000000, 0x00000000, 0xff080000, 0x00002000, 0xff100000, 0x00004000, 0xff180000, 0x00006100, 0xff200000, 0x00008100, 0xff290000, 0x0000a100, 0xff310000, 0x0000c200, 0xff390000, 0x0000e200, 0xff410000, 0x00000008, 0xff4a0000, 0x00002008, 0xff520000, 0x00004008, 0xff5a0000, 0x00006108, 0xff620000, 0x00008108, 0xff6a0000, 0x0000a108, 0xff730000, 0x0000c208, 0xff7b0000, 0x0000e208, 0xff830000, 0x00000010, 0xff8b0000, 0x00002010, 0xff940000, 0x00004010, 0xff9c0000, 0x00006110, 0xffa40000, 0x00008110, 0xffac0000, 0x0000a110, 0xffb40000, 0x0000c210, 0xffbd0000, 0x0000e210, 0xffc50000, 0x00000018, 0xffcd0000, 0x00002018, 0xffd50000, 0x00004018, 0xffde0000, 0x00006118, 0xffe60000, 0x00008118, 0xffee0000, 0x0000a118, 0xfff60000, 0x0000c218, 0xffff0000, 0x0000e218, 0xff000400, 0x00000020, 0xff080400, 0x00002020, 0xff100400, 0x00004020, 0xff180400, 0x00006120, 0xff200400, 0x00008120, 0xff290400, 0x0000a120, 0xff310400, 0x0000c220, 0xff390400, 0x0000e220, 0xff410400, 0x00000029, 0xff4a0400, 0x00002029, 0xff520400, 0x00004029, 0xff5a0400, 0x00006129, 0xff620400, 0x00008129, 0xff6a0400, 0x0000a129, 0xff730400, 0x0000c229, 0xff7b0400, 0x0000e229, 0xff830400, 0x00000031, 0xff8b0400, 0x00002031, 0xff940400, 0x00004031, 0xff9c0400, 0x00006131, 0xffa40400, 0x00008131, 0xffac0400, 0x0000a131, 0xffb40400, 0x0000c231, 0xffbd0400, 0x0000e231, 0xffc50400, 0x00000039, 0xffcd0400, 0x00002039, 0xffd50400, 0x00004039, 0xffde0400, 0x00006139, 0xffe60400, 0x00008139, 0xffee0400, 0x0000a139, 0xfff60400, 0x0000c239, 0xffff0400, 0x0000e239, 0xff000800, 0x00000041, 0xff080800, 0x00002041, 0xff100800, 0x00004041, 0xff180800, 0x00006141, 0xff200800, 0x00008141, 0xff290800, 0x0000a141, 0xff310800, 0x0000c241, 0xff390800, 0x0000e241, 0xff410800, 0x0000004a, 0xff4a0800, 0x0000204a, 0xff520800, 0x0000404a, 0xff5a0800, 0x0000614a, 0xff620800, 0x0000814a, 0xff6a0800, 0x0000a14a, 0xff730800, 0x0000c24a, 0xff7b0800, 0x0000e24a, 0xff830800, 0x00000052, 0xff8b0800, 0x00002052, 0xff940800, 0x00004052, 0xff9c0800, 0x00006152, 0xffa40800, 0x00008152, 0xffac0800, 0x0000a152, 0xffb40800, 0x0000c252, 0xffbd0800, 0x0000e252, 0xffc50800, 0x0000005a, 0xffcd0800, 0x0000205a, 0xffd50800, 0x0000405a, 0xffde0800, 0x0000615a, 0xffe60800, 0x0000815a, 0xffee0800, 0x0000a15a, 0xfff60800, 0x0000c25a, 0xffff0800, 0x0000e25a, 0xff000c00, 0x00000062, 0xff080c00, 0x00002062, 0xff100c00, 0x00004062, 0xff180c00, 0x00006162, 0xff200c00, 0x00008162, 0xff290c00, 0x0000a162, 0xff310c00, 0x0000c262, 0xff390c00, 0x0000e262, 0xff410c00, 0x0000006a, 0xff4a0c00, 0x0000206a, 0xff520c00, 0x0000406a, 0xff5a0c00, 0x0000616a, 0xff620c00, 0x0000816a, 0xff6a0c00, 0x0000a16a, 0xff730c00, 0x0000c26a, 0xff7b0c00, 0x0000e26a, 0xff830c00, 0x00000073, 0xff8b0c00, 0x00002073, 0xff940c00, 0x00004073, 0xff9c0c00, 0x00006173, 0xffa40c00, 0x00008173, 0xffac0c00, 0x0000a173, 0xffb40c00, 0x0000c273, 0xffbd0c00, 0x0000e273, 0xffc50c00, 0x0000007b, 0xffcd0c00, 0x0000207b, 0xffd50c00, 0x0000407b, 0xffde0c00, 0x0000617b, 0xffe60c00, 0x0000817b, 0xffee0c00, 0x0000a17b, 0xfff60c00, 0x0000c27b, 0xffff0c00, 0x0000e27b, 0xff001000, 0x00000083, 0xff081000, 0x00002083, 0xff101000, 0x00004083, 0xff181000, 0x00006183, 0xff201000, 0x00008183, 0xff291000, 0x0000a183, 0xff311000, 0x0000c283, 0xff391000, 0x0000e283, 0xff411000, 0x0000008b, 0xff4a1000, 0x0000208b, 0xff521000, 0x0000408b, 0xff5a1000, 0x0000618b, 0xff621000, 0x0000818b, 0xff6a1000, 0x0000a18b, 0xff731000, 0x0000c28b, 0xff7b1000, 0x0000e28b, 0xff831000, 0x00000094, 0xff8b1000, 0x00002094, 0xff941000, 0x00004094, 0xff9c1000, 0x00006194, 0xffa41000, 0x00008194, 0xffac1000, 0x0000a194, 0xffb41000, 0x0000c294, 0xffbd1000, 0x0000e294, 0xffc51000, 0x0000009c, 0xffcd1000, 0x0000209c, 0xffd51000, 0x0000409c, 0xffde1000, 0x0000619c, 0xffe61000, 0x0000819c, 0xffee1000, 0x0000a19c, 0xfff61000, 0x0000c29c, 0xffff1000, 0x0000e29c, 0xff001400, 0x000000a4, 0xff081400, 0x000020a4, 0xff101400, 0x000040a4, 0xff181400, 0x000061a4, 0xff201400, 0x000081a4, 0xff291400, 0x0000a1a4, 0xff311400, 0x0000c2a4, 0xff391400, 0x0000e2a4, 0xff411400, 0x000000ac, 0xff4a1400, 0x000020ac, 0xff521400, 0x000040ac, 0xff5a1400, 0x000061ac, 0xff621400, 0x000081ac, 0xff6a1400, 0x0000a1ac, 0xff731400, 0x0000c2ac, 0xff7b1400, 0x0000e2ac, 0xff831400, 0x000000b4, 0xff8b1400, 0x000020b4, 0xff941400, 0x000040b4, 0xff9c1400, 0x000061b4, 0xffa41400, 0x000081b4, 0xffac1400, 0x0000a1b4, 0xffb41400, 0x0000c2b4, 0xffbd1400, 0x0000e2b4, 0xffc51400, 0x000000bd, 0xffcd1400, 0x000020bd, 0xffd51400, 0x000040bd, 0xffde1400, 0x000061bd, 0xffe61400, 0x000081bd, 0xffee1400, 0x0000a1bd, 0xfff61400, 0x0000c2bd, 0xffff1400, 0x0000e2bd, 0xff001800, 0x000000c5, 0xff081800, 0x000020c5, 0xff101800, 0x000040c5, 0xff181800, 0x000061c5, 0xff201800, 0x000081c5, 0xff291800, 0x0000a1c5, 0xff311800, 0x0000c2c5, 0xff391800, 0x0000e2c5, 0xff411800, 0x000000cd, 0xff4a1800, 0x000020cd, 0xff521800, 0x000040cd, 0xff5a1800, 0x000061cd, 0xff621800, 0x000081cd, 0xff6a1800, 0x0000a1cd, 0xff731800, 0x0000c2cd, 0xff7b1800, 0x0000e2cd, 0xff831800, 0x000000d5, 0xff8b1800, 0x000020d5, 0xff941800, 0x000040d5, 0xff9c1800, 0x000061d5, 0xffa41800, 0x000081d5, 0xffac1800, 0x0000a1d5, 0xffb41800, 0x0000c2d5, 0xffbd1800, 0x0000e2d5, 0xffc51800, 0x000000de, 0xffcd1800, 0x000020de, 0xffd51800, 0x000040de, 0xffde1800, 0x000061de, 0xffe61800, 0x000081de, 0xffee1800, 0x0000a1de, 0xfff61800, 0x0000c2de, 0xffff1800, 0x0000e2de, 0xff001c00, 0x000000e6, 0xff081c00, 0x000020e6, 0xff101c00, 0x000040e6, 0xff181c00, 0x000061e6, 0xff201c00, 0x000081e6, 0xff291c00, 0x0000a1e6, 0xff311c00, 0x0000c2e6, 0xff391c00, 0x0000e2e6, 0xff411c00, 0x000000ee, 0xff4a1c00, 0x000020ee, 0xff521c00, 0x000040ee, 0xff5a1c00, 0x000061ee, 0xff621c00, 0x000081ee, 0xff6a1c00, 0x0000a1ee, 0xff731c00, 0x0000c2ee, 0xff7b1c00, 0x0000e2ee, 0xff831c00, 0x000000f6, 0xff8b1c00, 0x000020f6, 0xff941c00, 0x000040f6, 0xff9c1c00, 0x000061f6, 0xffa41c00, 0x000081f6, 0xffac1c00, 0x0000a1f6, 0xffb41c00, 0x0000c2f6, 0xffbd1c00, 0x0000e2f6, 0xffc51c00, 0x000000ff, 0xffcd1c00, 0x000020ff, 0xffd51c00, 0x000040ff, 0xffde1c00, 0x000061ff, 0xffe61c00, 0x000081ff, 0xffee1c00, 0x0000a1ff, 0xfff61c00, 0x0000c2ff, 0xffff1c00, 0x0000e2ff }; static void Blit_RGB565_ABGR8888(SDL_BlitInfo * info) { Blit_RGB565_32(info, RGB565_ABGR8888_LUT); } /* Special optimized blit for RGB 5-6-5 --> RGBA 8-8-8-8 */ static const Uint32 RGB565_RGBA8888_LUT[512] = { 0x000000ff, 0x00000000, 0x000008ff, 0x00200000, 0x000010ff, 0x00400000, 0x000018ff, 0x00610000, 0x000020ff, 0x00810000, 0x000029ff, 0x00a10000, 0x000031ff, 0x00c20000, 0x000039ff, 0x00e20000, 0x000041ff, 0x08000000, 0x00004aff, 0x08200000, 0x000052ff, 0x08400000, 0x00005aff, 0x08610000, 0x000062ff, 0x08810000, 0x00006aff, 0x08a10000, 0x000073ff, 0x08c20000, 0x00007bff, 0x08e20000, 0x000083ff, 0x10000000, 0x00008bff, 0x10200000, 0x000094ff, 0x10400000, 0x00009cff, 0x10610000, 0x0000a4ff, 0x10810000, 0x0000acff, 0x10a10000, 0x0000b4ff, 0x10c20000, 0x0000bdff, 0x10e20000, 0x0000c5ff, 0x18000000, 0x0000cdff, 0x18200000, 0x0000d5ff, 0x18400000, 0x0000deff, 0x18610000, 0x0000e6ff, 0x18810000, 0x0000eeff, 0x18a10000, 0x0000f6ff, 0x18c20000, 0x0000ffff, 0x18e20000, 0x000400ff, 0x20000000, 0x000408ff, 0x20200000, 0x000410ff, 0x20400000, 0x000418ff, 0x20610000, 0x000420ff, 0x20810000, 0x000429ff, 0x20a10000, 0x000431ff, 0x20c20000, 0x000439ff, 0x20e20000, 0x000441ff, 0x29000000, 0x00044aff, 0x29200000, 0x000452ff, 0x29400000, 0x00045aff, 0x29610000, 0x000462ff, 0x29810000, 0x00046aff, 0x29a10000, 0x000473ff, 0x29c20000, 0x00047bff, 0x29e20000, 0x000483ff, 0x31000000, 0x00048bff, 0x31200000, 0x000494ff, 0x31400000, 0x00049cff, 0x31610000, 0x0004a4ff, 0x31810000, 0x0004acff, 0x31a10000, 0x0004b4ff, 0x31c20000, 0x0004bdff, 0x31e20000, 0x0004c5ff, 0x39000000, 0x0004cdff, 0x39200000, 0x0004d5ff, 0x39400000, 0x0004deff, 0x39610000, 0x0004e6ff, 0x39810000, 0x0004eeff, 0x39a10000, 0x0004f6ff, 0x39c20000, 0x0004ffff, 0x39e20000, 0x000800ff, 0x41000000, 0x000808ff, 0x41200000, 0x000810ff, 0x41400000, 0x000818ff, 0x41610000, 0x000820ff, 0x41810000, 0x000829ff, 0x41a10000, 0x000831ff, 0x41c20000, 0x000839ff, 0x41e20000, 0x000841ff, 0x4a000000, 0x00084aff, 0x4a200000, 0x000852ff, 0x4a400000, 0x00085aff, 0x4a610000, 0x000862ff, 0x4a810000, 0x00086aff, 0x4aa10000, 0x000873ff, 0x4ac20000, 0x00087bff, 0x4ae20000, 0x000883ff, 0x52000000, 0x00088bff, 0x52200000, 0x000894ff, 0x52400000, 0x00089cff, 0x52610000, 0x0008a4ff, 0x52810000, 0x0008acff, 0x52a10000, 0x0008b4ff, 0x52c20000, 0x0008bdff, 0x52e20000, 0x0008c5ff, 0x5a000000, 0x0008cdff, 0x5a200000, 0x0008d5ff, 0x5a400000, 0x0008deff, 0x5a610000, 0x0008e6ff, 0x5a810000, 0x0008eeff, 0x5aa10000, 0x0008f6ff, 0x5ac20000, 0x0008ffff, 0x5ae20000, 0x000c00ff, 0x62000000, 0x000c08ff, 0x62200000, 0x000c10ff, 0x62400000, 0x000c18ff, 0x62610000, 0x000c20ff, 0x62810000, 0x000c29ff, 0x62a10000, 0x000c31ff, 0x62c20000, 0x000c39ff, 0x62e20000, 0x000c41ff, 0x6a000000, 0x000c4aff, 0x6a200000, 0x000c52ff, 0x6a400000, 0x000c5aff, 0x6a610000, 0x000c62ff, 0x6a810000, 0x000c6aff, 0x6aa10000, 0x000c73ff, 0x6ac20000, 0x000c7bff, 0x6ae20000, 0x000c83ff, 0x73000000, 0x000c8bff, 0x73200000, 0x000c94ff, 0x73400000, 0x000c9cff, 0x73610000, 0x000ca4ff, 0x73810000, 0x000cacff, 0x73a10000, 0x000cb4ff, 0x73c20000, 0x000cbdff, 0x73e20000, 0x000cc5ff, 0x7b000000, 0x000ccdff, 0x7b200000, 0x000cd5ff, 0x7b400000, 0x000cdeff, 0x7b610000, 0x000ce6ff, 0x7b810000, 0x000ceeff, 0x7ba10000, 0x000cf6ff, 0x7bc20000, 0x000cffff, 0x7be20000, 0x001000ff, 0x83000000, 0x001008ff, 0x83200000, 0x001010ff, 0x83400000, 0x001018ff, 0x83610000, 0x001020ff, 0x83810000, 0x001029ff, 0x83a10000, 0x001031ff, 0x83c20000, 0x001039ff, 0x83e20000, 0x001041ff, 0x8b000000, 0x00104aff, 0x8b200000, 0x001052ff, 0x8b400000, 0x00105aff, 0x8b610000, 0x001062ff, 0x8b810000, 0x00106aff, 0x8ba10000, 0x001073ff, 0x8bc20000, 0x00107bff, 0x8be20000, 0x001083ff, 0x94000000, 0x00108bff, 0x94200000, 0x001094ff, 0x94400000, 0x00109cff, 0x94610000, 0x0010a4ff, 0x94810000, 0x0010acff, 0x94a10000, 0x0010b4ff, 0x94c20000, 0x0010bdff, 0x94e20000, 0x0010c5ff, 0x9c000000, 0x0010cdff, 0x9c200000, 0x0010d5ff, 0x9c400000, 0x0010deff, 0x9c610000, 0x0010e6ff, 0x9c810000, 0x0010eeff, 0x9ca10000, 0x0010f6ff, 0x9cc20000, 0x0010ffff, 0x9ce20000, 0x001400ff, 0xa4000000, 0x001408ff, 0xa4200000, 0x001410ff, 0xa4400000, 0x001418ff, 0xa4610000, 0x001420ff, 0xa4810000, 0x001429ff, 0xa4a10000, 0x001431ff, 0xa4c20000, 0x001439ff, 0xa4e20000, 0x001441ff, 0xac000000, 0x00144aff, 0xac200000, 0x001452ff, 0xac400000, 0x00145aff, 0xac610000, 0x001462ff, 0xac810000, 0x00146aff, 0xaca10000, 0x001473ff, 0xacc20000, 0x00147bff, 0xace20000, 0x001483ff, 0xb4000000, 0x00148bff, 0xb4200000, 0x001494ff, 0xb4400000, 0x00149cff, 0xb4610000, 0x0014a4ff, 0xb4810000, 0x0014acff, 0xb4a10000, 0x0014b4ff, 0xb4c20000, 0x0014bdff, 0xb4e20000, 0x0014c5ff, 0xbd000000, 0x0014cdff, 0xbd200000, 0x0014d5ff, 0xbd400000, 0x0014deff, 0xbd610000, 0x0014e6ff, 0xbd810000, 0x0014eeff, 0xbda10000, 0x0014f6ff, 0xbdc20000, 0x0014ffff, 0xbde20000, 0x001800ff, 0xc5000000, 0x001808ff, 0xc5200000, 0x001810ff, 0xc5400000, 0x001818ff, 0xc5610000, 0x001820ff, 0xc5810000, 0x001829ff, 0xc5a10000, 0x001831ff, 0xc5c20000, 0x001839ff, 0xc5e20000, 0x001841ff, 0xcd000000, 0x00184aff, 0xcd200000, 0x001852ff, 0xcd400000, 0x00185aff, 0xcd610000, 0x001862ff, 0xcd810000, 0x00186aff, 0xcda10000, 0x001873ff, 0xcdc20000, 0x00187bff, 0xcde20000, 0x001883ff, 0xd5000000, 0x00188bff, 0xd5200000, 0x001894ff, 0xd5400000, 0x00189cff, 0xd5610000, 0x0018a4ff, 0xd5810000, 0x0018acff, 0xd5a10000, 0x0018b4ff, 0xd5c20000, 0x0018bdff, 0xd5e20000, 0x0018c5ff, 0xde000000, 0x0018cdff, 0xde200000, 0x0018d5ff, 0xde400000, 0x0018deff, 0xde610000, 0x0018e6ff, 0xde810000, 0x0018eeff, 0xdea10000, 0x0018f6ff, 0xdec20000, 0x0018ffff, 0xdee20000, 0x001c00ff, 0xe6000000, 0x001c08ff, 0xe6200000, 0x001c10ff, 0xe6400000, 0x001c18ff, 0xe6610000, 0x001c20ff, 0xe6810000, 0x001c29ff, 0xe6a10000, 0x001c31ff, 0xe6c20000, 0x001c39ff, 0xe6e20000, 0x001c41ff, 0xee000000, 0x001c4aff, 0xee200000, 0x001c52ff, 0xee400000, 0x001c5aff, 0xee610000, 0x001c62ff, 0xee810000, 0x001c6aff, 0xeea10000, 0x001c73ff, 0xeec20000, 0x001c7bff, 0xeee20000, 0x001c83ff, 0xf6000000, 0x001c8bff, 0xf6200000, 0x001c94ff, 0xf6400000, 0x001c9cff, 0xf6610000, 0x001ca4ff, 0xf6810000, 0x001cacff, 0xf6a10000, 0x001cb4ff, 0xf6c20000, 0x001cbdff, 0xf6e20000, 0x001cc5ff, 0xff000000, 0x001ccdff, 0xff200000, 0x001cd5ff, 0xff400000, 0x001cdeff, 0xff610000, 0x001ce6ff, 0xff810000, 0x001ceeff, 0xffa10000, 0x001cf6ff, 0xffc20000, 0x001cffff, 0xffe20000, }; static void Blit_RGB565_RGBA8888(SDL_BlitInfo * info) { Blit_RGB565_32(info, RGB565_RGBA8888_LUT); } /* Special optimized blit for RGB 5-6-5 --> BGRA 8-8-8-8 */ static const Uint32 RGB565_BGRA8888_LUT[512] = { 0x00000000, 0x000000ff, 0x08000000, 0x002000ff, 0x10000000, 0x004000ff, 0x18000000, 0x006100ff, 0x20000000, 0x008100ff, 0x29000000, 0x00a100ff, 0x31000000, 0x00c200ff, 0x39000000, 0x00e200ff, 0x41000000, 0x000008ff, 0x4a000000, 0x002008ff, 0x52000000, 0x004008ff, 0x5a000000, 0x006108ff, 0x62000000, 0x008108ff, 0x6a000000, 0x00a108ff, 0x73000000, 0x00c208ff, 0x7b000000, 0x00e208ff, 0x83000000, 0x000010ff, 0x8b000000, 0x002010ff, 0x94000000, 0x004010ff, 0x9c000000, 0x006110ff, 0xa4000000, 0x008110ff, 0xac000000, 0x00a110ff, 0xb4000000, 0x00c210ff, 0xbd000000, 0x00e210ff, 0xc5000000, 0x000018ff, 0xcd000000, 0x002018ff, 0xd5000000, 0x004018ff, 0xde000000, 0x006118ff, 0xe6000000, 0x008118ff, 0xee000000, 0x00a118ff, 0xf6000000, 0x00c218ff, 0xff000000, 0x00e218ff, 0x00040000, 0x000020ff, 0x08040000, 0x002020ff, 0x10040000, 0x004020ff, 0x18040000, 0x006120ff, 0x20040000, 0x008120ff, 0x29040000, 0x00a120ff, 0x31040000, 0x00c220ff, 0x39040000, 0x00e220ff, 0x41040000, 0x000029ff, 0x4a040000, 0x002029ff, 0x52040000, 0x004029ff, 0x5a040000, 0x006129ff, 0x62040000, 0x008129ff, 0x6a040000, 0x00a129ff, 0x73040000, 0x00c229ff, 0x7b040000, 0x00e229ff, 0x83040000, 0x000031ff, 0x8b040000, 0x002031ff, 0x94040000, 0x004031ff, 0x9c040000, 0x006131ff, 0xa4040000, 0x008131ff, 0xac040000, 0x00a131ff, 0xb4040000, 0x00c231ff, 0xbd040000, 0x00e231ff, 0xc5040000, 0x000039ff, 0xcd040000, 0x002039ff, 0xd5040000, 0x004039ff, 0xde040000, 0x006139ff, 0xe6040000, 0x008139ff, 0xee040000, 0x00a139ff, 0xf6040000, 0x00c239ff, 0xff040000, 0x00e239ff, 0x00080000, 0x000041ff, 0x08080000, 0x002041ff, 0x10080000, 0x004041ff, 0x18080000, 0x006141ff, 0x20080000, 0x008141ff, 0x29080000, 0x00a141ff, 0x31080000, 0x00c241ff, 0x39080000, 0x00e241ff, 0x41080000, 0x00004aff, 0x4a080000, 0x00204aff, 0x52080000, 0x00404aff, 0x5a080000, 0x00614aff, 0x62080000, 0x00814aff, 0x6a080000, 0x00a14aff, 0x73080000, 0x00c24aff, 0x7b080000, 0x00e24aff, 0x83080000, 0x000052ff, 0x8b080000, 0x002052ff, 0x94080000, 0x004052ff, 0x9c080000, 0x006152ff, 0xa4080000, 0x008152ff, 0xac080000, 0x00a152ff, 0xb4080000, 0x00c252ff, 0xbd080000, 0x00e252ff, 0xc5080000, 0x00005aff, 0xcd080000, 0x00205aff, 0xd5080000, 0x00405aff, 0xde080000, 0x00615aff, 0xe6080000, 0x00815aff, 0xee080000, 0x00a15aff, 0xf6080000, 0x00c25aff, 0xff080000, 0x00e25aff, 0x000c0000, 0x000062ff, 0x080c0000, 0x002062ff, 0x100c0000, 0x004062ff, 0x180c0000, 0x006162ff, 0x200c0000, 0x008162ff, 0x290c0000, 0x00a162ff, 0x310c0000, 0x00c262ff, 0x390c0000, 0x00e262ff, 0x410c0000, 0x00006aff, 0x4a0c0000, 0x00206aff, 0x520c0000, 0x00406aff, 0x5a0c0000, 0x00616aff, 0x620c0000, 0x00816aff, 0x6a0c0000, 0x00a16aff, 0x730c0000, 0x00c26aff, 0x7b0c0000, 0x00e26aff, 0x830c0000, 0x000073ff, 0x8b0c0000, 0x002073ff, 0x940c0000, 0x004073ff, 0x9c0c0000, 0x006173ff, 0xa40c0000, 0x008173ff, 0xac0c0000, 0x00a173ff, 0xb40c0000, 0x00c273ff, 0xbd0c0000, 0x00e273ff, 0xc50c0000, 0x00007bff, 0xcd0c0000, 0x00207bff, 0xd50c0000, 0x00407bff, 0xde0c0000, 0x00617bff, 0xe60c0000, 0x00817bff, 0xee0c0000, 0x00a17bff, 0xf60c0000, 0x00c27bff, 0xff0c0000, 0x00e27bff, 0x00100000, 0x000083ff, 0x08100000, 0x002083ff, 0x10100000, 0x004083ff, 0x18100000, 0x006183ff, 0x20100000, 0x008183ff, 0x29100000, 0x00a183ff, 0x31100000, 0x00c283ff, 0x39100000, 0x00e283ff, 0x41100000, 0x00008bff, 0x4a100000, 0x00208bff, 0x52100000, 0x00408bff, 0x5a100000, 0x00618bff, 0x62100000, 0x00818bff, 0x6a100000, 0x00a18bff, 0x73100000, 0x00c28bff, 0x7b100000, 0x00e28bff, 0x83100000, 0x000094ff, 0x8b100000, 0x002094ff, 0x94100000, 0x004094ff, 0x9c100000, 0x006194ff, 0xa4100000, 0x008194ff, 0xac100000, 0x00a194ff, 0xb4100000, 0x00c294ff, 0xbd100000, 0x00e294ff, 0xc5100000, 0x00009cff, 0xcd100000, 0x00209cff, 0xd5100000, 0x00409cff, 0xde100000, 0x00619cff, 0xe6100000, 0x00819cff, 0xee100000, 0x00a19cff, 0xf6100000, 0x00c29cff, 0xff100000, 0x00e29cff, 0x00140000, 0x0000a4ff, 0x08140000, 0x0020a4ff, 0x10140000, 0x0040a4ff, 0x18140000, 0x0061a4ff, 0x20140000, 0x0081a4ff, 0x29140000, 0x00a1a4ff, 0x31140000, 0x00c2a4ff, 0x39140000, 0x00e2a4ff, 0x41140000, 0x0000acff, 0x4a140000, 0x0020acff, 0x52140000, 0x0040acff, 0x5a140000, 0x0061acff, 0x62140000, 0x0081acff, 0x6a140000, 0x00a1acff, 0x73140000, 0x00c2acff, 0x7b140000, 0x00e2acff, 0x83140000, 0x0000b4ff, 0x8b140000, 0x0020b4ff, 0x94140000, 0x0040b4ff, 0x9c140000, 0x0061b4ff, 0xa4140000, 0x0081b4ff, 0xac140000, 0x00a1b4ff, 0xb4140000, 0x00c2b4ff, 0xbd140000, 0x00e2b4ff, 0xc5140000, 0x0000bdff, 0xcd140000, 0x0020bdff, 0xd5140000, 0x0040bdff, 0xde140000, 0x0061bdff, 0xe6140000, 0x0081bdff, 0xee140000, 0x00a1bdff, 0xf6140000, 0x00c2bdff, 0xff140000, 0x00e2bdff, 0x00180000, 0x0000c5ff, 0x08180000, 0x0020c5ff, 0x10180000, 0x0040c5ff, 0x18180000, 0x0061c5ff, 0x20180000, 0x0081c5ff, 0x29180000, 0x00a1c5ff, 0x31180000, 0x00c2c5ff, 0x39180000, 0x00e2c5ff, 0x41180000, 0x0000cdff, 0x4a180000, 0x0020cdff, 0x52180000, 0x0040cdff, 0x5a180000, 0x0061cdff, 0x62180000, 0x0081cdff, 0x6a180000, 0x00a1cdff, 0x73180000, 0x00c2cdff, 0x7b180000, 0x00e2cdff, 0x83180000, 0x0000d5ff, 0x8b180000, 0x0020d5ff, 0x94180000, 0x0040d5ff, 0x9c180000, 0x0061d5ff, 0xa4180000, 0x0081d5ff, 0xac180000, 0x00a1d5ff, 0xb4180000, 0x00c2d5ff, 0xbd180000, 0x00e2d5ff, 0xc5180000, 0x0000deff, 0xcd180000, 0x0020deff, 0xd5180000, 0x0040deff, 0xde180000, 0x0061deff, 0xe6180000, 0x0081deff, 0xee180000, 0x00a1deff, 0xf6180000, 0x00c2deff, 0xff180000, 0x00e2deff, 0x001c0000, 0x0000e6ff, 0x081c0000, 0x0020e6ff, 0x101c0000, 0x0040e6ff, 0x181c0000, 0x0061e6ff, 0x201c0000, 0x0081e6ff, 0x291c0000, 0x00a1e6ff, 0x311c0000, 0x00c2e6ff, 0x391c0000, 0x00e2e6ff, 0x411c0000, 0x0000eeff, 0x4a1c0000, 0x0020eeff, 0x521c0000, 0x0040eeff, 0x5a1c0000, 0x0061eeff, 0x621c0000, 0x0081eeff, 0x6a1c0000, 0x00a1eeff, 0x731c0000, 0x00c2eeff, 0x7b1c0000, 0x00e2eeff, 0x831c0000, 0x0000f6ff, 0x8b1c0000, 0x0020f6ff, 0x941c0000, 0x0040f6ff, 0x9c1c0000, 0x0061f6ff, 0xa41c0000, 0x0081f6ff, 0xac1c0000, 0x00a1f6ff, 0xb41c0000, 0x00c2f6ff, 0xbd1c0000, 0x00e2f6ff, 0xc51c0000, 0x0000ffff, 0xcd1c0000, 0x0020ffff, 0xd51c0000, 0x0040ffff, 0xde1c0000, 0x0061ffff, 0xe61c0000, 0x0081ffff, 0xee1c0000, 0x00a1ffff, 0xf61c0000, 0x00c2ffff, 0xff1c0000, 0x00e2ffff }; static void Blit_RGB565_BGRA8888(SDL_BlitInfo * info) { Blit_RGB565_32(info, RGB565_BGRA8888_LUT); } /* Special optimized blit for RGB 8-8-8 --> RGB 3-3-2 */ #ifndef RGB888_RGB332 #define RGB888_RGB332(dst, src) { \ dst = (((src)&0x00E00000)>>16)| \ (((src)&0x0000E000)>>11)| \ (((src)&0x000000C0)>>6); \ } #endif static void Blit_RGB888_index8_map(SDL_BlitInfo * info) { #ifndef USE_DUFFS_LOOP int c; #endif int Pixel; int width, height; Uint32 *src; const Uint8 *map; Uint8 *dst; int srcskip, dstskip; /* Set up some basic variables */ width = info->dst_w; height = info->dst_h; src = (Uint32 *) info->src; srcskip = info->src_skip / 4; dst = info->dst; dstskip = info->dst_skip; map = info->table; #ifdef USE_DUFFS_LOOP while (height--) { /* *INDENT-OFF* */ DUFFS_LOOP( RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; , width); /* *INDENT-ON* */ src += srcskip; dst += dstskip; } #else while (height--) { for (c = width / 4; c; --c) { /* Pack RGB into 8bit pixel */ RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; } switch (width & 3) { case 3: RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; case 2: RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; case 1: RGB888_RGB332(Pixel, *src); *dst++ = map[Pixel]; ++src; } src += srcskip; dst += dstskip; } #endif /* USE_DUFFS_LOOP */ } static void BlitNto1(SDL_BlitInfo * info) { #ifndef USE_DUFFS_LOOP int c; #endif int width, height; Uint8 *src; const Uint8 *map; Uint8 *dst; int srcskip, dstskip; int srcbpp; Uint32 Pixel; int sR, sG, sB; SDL_PixelFormat *srcfmt; /* Set up some basic variables */ width = info->dst_w; height = info->dst_h; src = info->src; srcskip = info->src_skip; dst = info->dst; dstskip = info->dst_skip; map = info->table; srcfmt = info->src_fmt; srcbpp = srcfmt->BytesPerPixel; if (map == NULL) { while (height--) { #ifdef USE_DUFFS_LOOP /* *INDENT-OFF* */ DUFFS_LOOP( DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB); if ( 1 ) { /* Pack RGB into 8bit pixel */ *dst = ((sR>>5)<<(3+2))| ((sG>>5)<<(2)) | ((sB>>6)<<(0)) ; } dst++; src += srcbpp; , width); /* *INDENT-ON* */ #else for (c = width; c; --c) { DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB); if (1) { /* Pack RGB into 8bit pixel */ *dst = ((sR >> 5) << (3 + 2)) | ((sG >> 5) << (2)) | ((sB >> 6) << (0)); } dst++; src += srcbpp; } #endif src += srcskip; dst += dstskip; } } else { while (height--) { #ifdef USE_DUFFS_LOOP /* *INDENT-OFF* */ DUFFS_LOOP( DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB); if ( 1 ) { /* Pack RGB into 8bit pixel */ *dst = map[((sR>>5)<<(3+2))| ((sG>>5)<<(2)) | ((sB>>6)<<(0)) ]; } dst++; src += srcbpp; , width); /* *INDENT-ON* */ #else for (c = width; c; --c) { DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB); if (1) { /* Pack RGB into 8bit pixel */ *dst = map[((sR >> 5) << (3 + 2)) | ((sG >> 5) << (2)) | ((sB >> 6) << (0))]; } dst++; src += srcbpp; } #endif /* USE_DUFFS_LOOP */ src += srcskip; dst += dstskip; } } } /* blits 32 bit RGB<->RGBA with both surfaces having the same R,G,B fields */ static void Blit4to4MaskAlpha(SDL_BlitInfo * info) { int width = info->dst_w; int height = info->dst_h; Uint32 *src = (Uint32 *) info->src; int srcskip = info->src_skip; Uint32 *dst = (Uint32 *) info->dst; int dstskip = info->dst_skip; SDL_PixelFormat *srcfmt = info->src_fmt; SDL_PixelFormat *dstfmt = info->dst_fmt; if (dstfmt->Amask) { /* RGB->RGBA, SET_ALPHA */ Uint32 mask = (info->a >> dstfmt->Aloss) << dstfmt->Ashift; while (height--) { /* *INDENT-OFF* */ DUFFS_LOOP( { *dst = *src | mask; ++dst; ++src; }, width); /* *INDENT-ON* */ src = (Uint32 *) ((Uint8 *) src + srcskip); dst = (Uint32 *) ((Uint8 *) dst + dstskip); } } else { /* RGBA->RGB, NO_ALPHA */ Uint32 mask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask; while (height--) { /* *INDENT-OFF* */ DUFFS_LOOP( { *dst = *src & mask; ++dst; ++src; }, width); /* *INDENT-ON* */ src = (Uint32 *) ((Uint8 *) src + srcskip); dst = (Uint32 *) ((Uint8 *) dst + dstskip); } } } static void BlitNtoN(SDL_BlitInfo * info) { int width = info->dst_w; int height = info->dst_h; Uint8 *src = info->src; int srcskip = info->src_skip; Uint8 *dst = info->dst; int dstskip = info->dst_skip; SDL_PixelFormat *srcfmt = info->src_fmt; int srcbpp = srcfmt->BytesPerPixel; SDL_PixelFormat *dstfmt = info->dst_fmt; int dstbpp = dstfmt->BytesPerPixel; unsigned alpha = dstfmt->Amask ? info->a : 0; while (height--) { /* *INDENT-OFF* */ DUFFS_LOOP( { Uint32 Pixel; unsigned sR; unsigned sG; unsigned sB; DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB); ASSEMBLE_RGBA(dst, dstbpp, dstfmt, sR, sG, sB, alpha); dst += dstbpp; src += srcbpp; }, width); /* *INDENT-ON* */ src += srcskip; dst += dstskip; } } static void BlitNtoNCopyAlpha(SDL_BlitInfo * info) { int width = info->dst_w; int height = info->dst_h; Uint8 *src = info->src; int srcskip = info->src_skip; Uint8 *dst = info->dst; int dstskip = info->dst_skip; SDL_PixelFormat *srcfmt = info->src_fmt; int srcbpp = srcfmt->BytesPerPixel; SDL_PixelFormat *dstfmt = info->dst_fmt; int dstbpp = dstfmt->BytesPerPixel; int c; /* FIXME: should map alpha to [0..255] correctly! */ while (height--) { for (c = width; c; --c) { Uint32 Pixel; unsigned sR, sG, sB, sA; DISEMBLE_RGBA(src, srcbpp, srcfmt, Pixel, sR, sG, sB, sA); ASSEMBLE_RGBA(dst, dstbpp, dstfmt, sR, sG, sB, sA); dst += dstbpp; src += srcbpp; } src += srcskip; dst += dstskip; } } static void BlitNto1Key(SDL_BlitInfo * info) { int width = info->dst_w; int height = info->dst_h; Uint8 *src = info->src; int srcskip = info->src_skip; Uint8 *dst = info->dst; int dstskip = info->dst_skip; SDL_PixelFormat *srcfmt = info->src_fmt; const Uint8 *palmap = info->table; Uint32 ckey = info->colorkey; Uint32 rgbmask = ~srcfmt->Amask; int srcbpp; Uint32 Pixel; unsigned sR, sG, sB; /* Set up some basic variables */ srcbpp = srcfmt->BytesPerPixel; ckey &= rgbmask; if (palmap == NULL) { while (height--) { /* *INDENT-OFF* */ DUFFS_LOOP( { DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB); if ( (Pixel & rgbmask) != ckey ) { /* Pack RGB into 8bit pixel */ *dst = (Uint8)(((sR>>5)<<(3+2))| ((sG>>5)<<(2)) | ((sB>>6)<<(0))); } dst++; src += srcbpp; }, width); /* *INDENT-ON* */ src += srcskip; dst += dstskip; } } else { while (height--) { /* *INDENT-OFF* */ DUFFS_LOOP( { DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB); if ( (Pixel & rgbmask) != ckey ) { /* Pack RGB into 8bit pixel */ *dst = (Uint8)palmap[((sR>>5)<<(3+2))| ((sG>>5)<<(2)) | ((sB>>6)<<(0)) ]; } dst++; src += srcbpp; }, width); /* *INDENT-ON* */ src += srcskip; dst += dstskip; } } } static void Blit2to2Key(SDL_BlitInfo * info) { int width = info->dst_w; int height = info->dst_h; Uint16 *srcp = (Uint16 *) info->src; int srcskip = info->src_skip; Uint16 *dstp = (Uint16 *) info->dst; int dstskip = info->dst_skip; Uint32 ckey = info->colorkey; Uint32 rgbmask = ~info->src_fmt->Amask; /* Set up some basic variables */ srcskip /= 2; dstskip /= 2; ckey &= rgbmask; while (height--) { /* *INDENT-OFF* */ DUFFS_LOOP( { if ( (*srcp & rgbmask) != ckey ) { *dstp = *srcp; } dstp++; srcp++; }, width); /* *INDENT-ON* */ srcp += srcskip; dstp += dstskip; } } static void BlitNtoNKey(SDL_BlitInfo * info) { int width = info->dst_w; int height = info->dst_h; Uint8 *src = info->src; int srcskip = info->src_skip; Uint8 *dst = info->dst; int dstskip = info->dst_skip; Uint32 ckey = info->colorkey; SDL_PixelFormat *srcfmt = info->src_fmt; SDL_PixelFormat *dstfmt = info->dst_fmt; int srcbpp = srcfmt->BytesPerPixel; int dstbpp = dstfmt->BytesPerPixel; unsigned alpha = dstfmt->Amask ? info->a : 0; Uint32 rgbmask = ~srcfmt->Amask; /* Set up some basic variables */ ckey &= rgbmask; while (height--) { /* *INDENT-OFF* */ DUFFS_LOOP( { Uint32 Pixel; unsigned sR; unsigned sG; unsigned sB; RETRIEVE_RGB_PIXEL(src, srcbpp, Pixel); if ( (Pixel & rgbmask) != ckey ) { RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB); ASSEMBLE_RGBA(dst, dstbpp, dstfmt, sR, sG, sB, alpha); } dst += dstbpp; src += srcbpp; }, width); /* *INDENT-ON* */ src += srcskip; dst += dstskip; } } static void BlitNtoNKeyCopyAlpha(SDL_BlitInfo * info) { int width = info->dst_w; int height = info->dst_h; Uint8 *src = info->src; int srcskip = info->src_skip; Uint8 *dst = info->dst; int dstskip = info->dst_skip; Uint32 ckey = info->colorkey; SDL_PixelFormat *srcfmt = info->src_fmt; SDL_PixelFormat *dstfmt = info->dst_fmt; Uint32 rgbmask = ~srcfmt->Amask; Uint8 srcbpp; Uint8 dstbpp; Uint32 Pixel; unsigned sR, sG, sB, sA; /* Set up some basic variables */ srcbpp = srcfmt->BytesPerPixel; dstbpp = dstfmt->BytesPerPixel; ckey &= rgbmask; /* FIXME: should map alpha to [0..255] correctly! */ while (height--) { /* *INDENT-OFF* */ DUFFS_LOOP( { DISEMBLE_RGBA(src, srcbpp, srcfmt, Pixel, sR, sG, sB, sA); if ( (Pixel & rgbmask) != ckey ) { ASSEMBLE_RGBA(dst, dstbpp, dstfmt, sR, sG, sB, sA); } dst += dstbpp; src += srcbpp; }, width); /* *INDENT-ON* */ src += srcskip; dst += dstskip; } } /* Normal N to N optimized blitters */ struct blit_table { Uint32 srcR, srcG, srcB; int dstbpp; Uint32 dstR, dstG, dstB; Uint32 blit_features; SDL_BlitFunc blitfunc; enum { NO_ALPHA = 1, SET_ALPHA = 2, COPY_ALPHA = 4 } alpha; }; static const struct blit_table normal_blit_1[] = { /* Default for 8-bit RGB source, an invalid combination */ {0, 0, 0, 0, 0, 0, 0, 0, NULL}, }; static const struct blit_table normal_blit_2[] = { #if SDL_ALTIVEC_BLITTERS /* has-altivec */ {0x0000F800, 0x000007E0, 0x0000001F, 4, 0x00000000, 0x00000000, 0x00000000, 2, Blit_RGB565_32Altivec, NO_ALPHA | COPY_ALPHA | SET_ALPHA}, {0x00007C00, 0x000003E0, 0x0000001F, 4, 0x00000000, 0x00000000, 0x00000000, 2, Blit_RGB555_32Altivec, NO_ALPHA | COPY_ALPHA | SET_ALPHA}, #endif {0x0000F800, 0x000007E0, 0x0000001F, 4, 0x00FF0000, 0x0000FF00, 0x000000FF, 0, Blit_RGB565_ARGB8888, SET_ALPHA}, {0x0000F800, 0x000007E0, 0x0000001F, 4, 0x000000FF, 0x0000FF00, 0x00FF0000, 0, Blit_RGB565_ABGR8888, SET_ALPHA}, {0x0000F800, 0x000007E0, 0x0000001F, 4, 0xFF000000, 0x00FF0000, 0x0000FF00, 0, Blit_RGB565_RGBA8888, SET_ALPHA}, {0x0000F800, 0x000007E0, 0x0000001F, 4, 0x0000FF00, 0x00FF0000, 0xFF000000, 0, Blit_RGB565_BGRA8888, SET_ALPHA}, /* Default for 16-bit RGB source, used if no other blitter matches */ {0, 0, 0, 0, 0, 0, 0, 0, BlitNtoN, 0} }; static const struct blit_table normal_blit_3[] = { /* Default for 24-bit RGB source, never optimized */ {0, 0, 0, 0, 0, 0, 0, 0, BlitNtoN, 0} }; static const struct blit_table normal_blit_4[] = { #if SDL_ALTIVEC_BLITTERS /* has-altivec | dont-use-prefetch */ {0x00000000, 0x00000000, 0x00000000, 4, 0x00000000, 0x00000000, 0x00000000, 6, ConvertAltivec32to32_noprefetch, NO_ALPHA | COPY_ALPHA | SET_ALPHA}, /* has-altivec */ {0x00000000, 0x00000000, 0x00000000, 4, 0x00000000, 0x00000000, 0x00000000, 2, ConvertAltivec32to32_prefetch, NO_ALPHA | COPY_ALPHA | SET_ALPHA}, /* has-altivec */ {0x00000000, 0x00000000, 0x00000000, 2, 0x0000F800, 0x000007E0, 0x0000001F, 2, Blit_RGB888_RGB565Altivec, NO_ALPHA}, #endif {0x00FF0000, 0x0000FF00, 0x000000FF, 2, 0x0000F800, 0x000007E0, 0x0000001F, 0, Blit_RGB888_RGB565, NO_ALPHA}, {0x00FF0000, 0x0000FF00, 0x000000FF, 2, 0x00007C00, 0x000003E0, 0x0000001F, 0, Blit_RGB888_RGB555, NO_ALPHA}, /* Default for 32-bit RGB source, used if no other blitter matches */ {0, 0, 0, 0, 0, 0, 0, 0, BlitNtoN, 0} }; static const struct blit_table *const normal_blit[] = { normal_blit_1, normal_blit_2, normal_blit_3, normal_blit_4 }; /* Mask matches table, or table entry is zero */ #define MASKOK(x, y) (((x) == (y)) || ((y) == 0x00000000)) SDL_BlitFunc SDL_CalculateBlitN(SDL_Surface * surface) { SDL_PixelFormat *srcfmt; SDL_PixelFormat *dstfmt; const struct blit_table *table; int which; SDL_BlitFunc blitfun; /* Set up data for choosing the blit */ srcfmt = surface->format; dstfmt = surface->map->dst->format; /* We don't support destinations less than 8-bits */ if (dstfmt->BitsPerPixel < 8) { return (NULL); } switch (surface->map->info.flags & ~SDL_COPY_RLE_MASK) { case 0: blitfun = NULL; if (dstfmt->BitsPerPixel == 8) { /* We assume 8-bit destinations are palettized */ if ((srcfmt->BytesPerPixel == 4) && (srcfmt->Rmask == 0x00FF0000) && (srcfmt->Gmask == 0x0000FF00) && (srcfmt->Bmask == 0x000000FF)) { if (surface->map->info.table) { blitfun = Blit_RGB888_index8_map; } else { blitfun = Blit_RGB888_index8; } } else { blitfun = BlitNto1; } } else { /* Now the meat, choose the blitter we want */ int a_need = NO_ALPHA; if (dstfmt->Amask) a_need = srcfmt->Amask ? COPY_ALPHA : SET_ALPHA; table = normal_blit[srcfmt->BytesPerPixel - 1]; for (which = 0; table[which].dstbpp; ++which) { if (MASKOK(srcfmt->Rmask, table[which].srcR) && MASKOK(srcfmt->Gmask, table[which].srcG) && MASKOK(srcfmt->Bmask, table[which].srcB) && MASKOK(dstfmt->Rmask, table[which].dstR) && MASKOK(dstfmt->Gmask, table[which].dstG) && MASKOK(dstfmt->Bmask, table[which].dstB) && dstfmt->BytesPerPixel == table[which].dstbpp && (a_need & table[which].alpha) == a_need && ((table[which].blit_features & GetBlitFeatures()) == table[which].blit_features)) break; } blitfun = table[which].blitfunc; if (blitfun == BlitNtoN) { /* default C fallback catch-all. Slow! */ /* Fastpath C fallback: 32bit RGB<->RGBA blit with matching RGB */ if (srcfmt->BytesPerPixel == 4 && dstfmt->BytesPerPixel == 4 && srcfmt->Rmask == dstfmt->Rmask && srcfmt->Gmask == dstfmt->Gmask && srcfmt->Bmask == dstfmt->Bmask) { blitfun = Blit4to4MaskAlpha; } else if (a_need == COPY_ALPHA) { blitfun = BlitNtoNCopyAlpha; } } } return (blitfun); case SDL_COPY_COLORKEY: /* colorkey blit: Here we don't have too many options, mostly because RLE is the preferred fast way to deal with this. If a particular case turns out to be useful we'll add it. */ if (srcfmt->BytesPerPixel == 2 && surface->map->identity) return Blit2to2Key; else if (dstfmt->BytesPerPixel == 1) return BlitNto1Key; else { #if SDL_ALTIVEC_BLITTERS if ((srcfmt->BytesPerPixel == 4) && (dstfmt->BytesPerPixel == 4) && SDL_HasAltiVec()) { return Blit32to32KeyAltivec; } else #endif if (srcfmt->Amask && dstfmt->Amask) { return BlitNtoNKeyCopyAlpha; } else { return BlitNtoNKey; } } } return NULL; } /* vi: set ts=4 sw=4 expandtab: */