/********************************************************************************** Snes9x - Portable Super Nintendo Entertainment System (TM) emulator. (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com), Jerremy Koot (jkoot@snes9x.com) (c) Copyright 2002 - 2004 Matthew Kendora (c) Copyright 2002 - 2005 Peter Bortas (peter@bortas.org) (c) Copyright 2004 - 2005 Joel Yliluoma (http://iki.fi/bisqwit/) (c) Copyright 2001 - 2006 John Weidman (jweidman@slip.net) (c) Copyright 2002 - 2006 funkyass (funkyass@spam.shaw.ca), Kris Bleakley (codeviolation@hotmail.com) (c) Copyright 2002 - 2007 Brad Jorsch (anomie@users.sourceforge.net), Nach (n-a-c-h@users.sourceforge.net), zones (kasumitokoduck@yahoo.com) (c) Copyright 2006 - 2007 nitsuja BS-X C emulator code (c) Copyright 2005 - 2006 Dreamer Nom, zones C4 x86 assembler and some C emulation code (c) Copyright 2000 - 2003 _Demo_ (_demo_@zsnes.com), Nach, zsKnight (zsknight@zsnes.com) C4 C++ code (c) Copyright 2003 - 2006 Brad Jorsch, Nach DSP-1 emulator code (c) Copyright 1998 - 2006 _Demo_, Andreas Naive (andreasnaive@gmail.com) Gary Henderson, Ivar (ivar@snes9x.com), John Weidman, Kris Bleakley, Matthew Kendora, Nach, neviksti (neviksti@hotmail.com) DSP-2 emulator code (c) Copyright 2003 John Weidman, Kris Bleakley, Lord Nightmare (lord_nightmare@users.sourceforge.net), Matthew Kendora, neviksti DSP-3 emulator code (c) Copyright 2003 - 2006 John Weidman, Kris Bleakley, Lancer, z80 gaiden DSP-4 emulator code (c) Copyright 2004 - 2006 Dreamer Nom, John Weidman, Kris Bleakley, Nach, z80 gaiden OBC1 emulator code (c) Copyright 2001 - 2004 zsKnight, pagefault (pagefault@zsnes.com), Kris Bleakley, Ported from x86 assembler to C by sanmaiwashi SPC7110 and RTC C++ emulator code (c) Copyright 2002 Matthew Kendora with research by zsKnight, John Weidman, Dark Force S-DD1 C emulator code (c) Copyright 2003 Brad Jorsch with research by Andreas Naive, John Weidman S-RTC C emulator code (c) Copyright 2001-2006 byuu, John Weidman ST010 C++ emulator code (c) Copyright 2003 Feather, John Weidman, Kris Bleakley, Matthew Kendora Super FX x86 assembler emulator code (c) Copyright 1998 - 2003 _Demo_, pagefault, zsKnight, Super FX C emulator code (c) Copyright 1997 - 1999 Ivar, Gary Henderson, John Weidman Sound DSP emulator code is derived from SNEeSe and OpenSPC: (c) Copyright 1998 - 2003 Brad Martin (c) Copyright 1998 - 2006 Charles Bilyue' SH assembler code partly based on x86 assembler code (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se) 2xSaI filter (c) Copyright 1999 - 2001 Derek Liauw Kie Fa HQ2x, HQ3x, HQ4x filters (c) Copyright 2003 Maxim Stepin (maxim@hiend3d.com) Win32 GUI code (c) Copyright 2003 - 2006 blip, funkyass, Matthew Kendora, Nach, nitsuja Mac OS GUI code (c) Copyright 1998 - 2001 John Stiles (c) Copyright 2001 - 2007 zones Specific ports contains the works of other authors. See headers in individual files. Snes9x homepage: http://www.snes9x.com Permission to use, copy, modify and/or distribute Snes9x in both binary and source form, for non-commercial purposes, is hereby granted without fee, providing that this license information and copyright notice appear with all copies and any derived work. This software is provided 'as-is', without any express or implied warranty. In no event shall the authors be held liable for any damages arising from the use of this software or it's derivatives. Snes9x is freeware for PERSONAL USE only. Commercial users should seek permission of the copyright holders first. Commercial use includes, but is not limited to, charging money for Snes9x or software derived from Snes9x, including Snes9x or derivatives in commercial game bundles, and/or using Snes9x as a promotion for your commercial product. The copyright holders request that bug fixes and improvements to the code should be forwarded to them so everyone can benefit from the modifications in future versions. Super NES and Super Nintendo Entertainment System are trademarks of Nintendo Co., Limited and its subsidiary companies. **********************************************************************************/ #ifdef __DJGPP #include #endif #include "snes9x.h" #include "port.h" #include "gfx.h" #if (defined(USE_X86_ASM) && (defined (__i386__) || defined (__i486__) || \ defined (__i586__) || defined (__WIN32__) || defined (__DJGPP))) # ifndef MMX # define MMX # endif #endif extern "C" { #ifdef MMX void _2xSaILine (uint8 *srcPtr, uint8 *deltaPtr, uint32 srcPitch, uint32 width, uint8 *dstPtr, uint32 dstPitch); void _2xSaISuperEagleLine (uint8 *srcPtr, uint8 *deltaPtr, uint32 srcPitch, uint32 width, uint8 *dstPtr, uint32 dstPitch); void _2xSaISuper2xSaILine (uint8 *srcPtr, uint8 *deltaPtr, uint32 srcPitch, uint32 width, uint8 *dstPtr, uint32 dstPitch); void Init_2xSaIMMX (uint32 BitFormat); void BilinearMMX (uint16 * A, uint16 * B, uint16 * C, uint16 * D, uint16 * dx, uint16 * dy, uint8 *dP); void BilinearMMXGrid0 (uint16 * A, uint16 * B, uint16 * C, uint16 * D, uint16 * dx, uint16 * dy, uint8 *dP); void BilinearMMXGrid1 (uint16 * A, uint16 * B, uint16 * C, uint16 * D, uint16 * dx, uint16 * dy, uint8 *dP); void EndMMX (); #endif } bool8 cpu_mmx = 1; static uint32 colorMask = 0xF7DEF7DE; static uint32 lowPixelMask = 0x08210821; static uint32 qcolorMask = 0xE79CE79C; static uint32 qlowpixelMask = 0x18631863; static uint32 redblueMask = 0xF81F; static uint32 greenMask = 0x7E0; int Init_2xSaI (uint32 BitFormat) { if (BitFormat == 565) { colorMask = 0xF7DEF7DE; lowPixelMask = 0x08210821; qcolorMask = 0xE79CE79C; qlowpixelMask = 0x18631863; redblueMask = 0xF81F; greenMask = 0x7E0; } else if (BitFormat == 555) { colorMask = 0x7BDE7BDE; lowPixelMask = 0x04210421; qcolorMask = 0x739C739C; qlowpixelMask = 0x0C630C63; redblueMask = 0x7C1F; greenMask = 0x3E0; } else { return 0; } #ifdef MMX Init_2xSaIMMX (BitFormat); #endif return 1; } static inline int GetResult1 (uint32 A, uint32 B, uint32 C, uint32 D, uint32 /* E */) { int x = 0; int y = 0; int r = 0; if (A == C) x += 1; else if (B == C) y += 1; if (A == D) x += 1; else if (B == D) y += 1; if (x <= 1) r += 1; if (y <= 1) r -= 1; return r; } static inline int GetResult2 (uint32 A, uint32 B, uint32 C, uint32 D, uint32 /* E */) { int x = 0; int y = 0; int r = 0; if (A == C) x += 1; else if (B == C) y += 1; if (A == D) x += 1; else if (B == D) y += 1; if (x <= 1) r -= 1; if (y <= 1) r += 1; return r; } static inline int GetResult (uint32 A, uint32 B, uint32 C, uint32 D) { int x = 0; int y = 0; int r = 0; if (A == C) x += 1; else if (B == C) y += 1; if (A == D) x += 1; else if (B == D) y += 1; if (x <= 1) r += 1; if (y <= 1) r -= 1; return r; } static inline uint32 INTERPOLATE (uint32 A, uint32 B) { if (A != B) { return (((A & colorMask) >> 1) + ((B & colorMask) >> 1) + (A & B & lowPixelMask)); } else return A; } static inline uint32 Q_INTERPOLATE (uint32 A, uint32 B, uint32 C, uint32 D) { register uint32 x = ((A & qcolorMask) >> 2) + ((B & qcolorMask) >> 2) + ((C & qcolorMask) >> 2) + ((D & qcolorMask) >> 2); register uint32 y = (A & qlowpixelMask) + (B & qlowpixelMask) + (C & qlowpixelMask) + (D & qlowpixelMask); y = (y >> 2) & qlowpixelMask; return x + y; } #define BLUE_MASK565 0x001F001F #define RED_MASK565 0xF800F800 #define GREEN_MASK565 0x07E007E0 #define BLUE_MASK555 0x001F001F #define RED_MASK555 0x7C007C00 #define GREEN_MASK555 0x03E003E0 void Super2xSaI (uint8 *srcPtr, uint32 srcPitch, uint8 *deltaPtr, uint8 *dstPtr, uint32 dstPitch, int width, int height) { uint16 *bP; uint8 *dP; uint32 inc_bP; #ifdef MMX if (cpu_mmx) { while (height--) { _2xSaISuper2xSaILine (srcPtr, deltaPtr, srcPitch, width, dstPtr, dstPitch); srcPtr += srcPitch; dstPtr += dstPitch * 2; deltaPtr += srcPitch; } } else #endif { uint32 Nextline = srcPitch >> 1; inc_bP = 1; while (height--) { bP = (uint16 *) srcPtr; dP = (uint8 *) dstPtr; for (uint32 finish = width; finish; finish -= inc_bP) { uint32 color4, color5, color6; uint32 color1, color2, color3; uint32 colorA0, colorA1, colorA2, colorA3, colorB0, colorB1, colorB2, colorB3, colorS1, colorS2; uint32 product1a, product1b, product2a, product2b; //--------------------------------------- B1 B2 // 4 5 6 S2 // 1 2 3 S1 // A1 A2 colorB0 = *(bP - Nextline - 1); colorB1 = *(bP - Nextline); colorB2 = *(bP - Nextline + 1); colorB3 = *(bP - Nextline + 2); color4 = *(bP - 1); color5 = *(bP); color6 = *(bP + 1); colorS2 = *(bP + 2); color1 = *(bP + Nextline - 1); color2 = *(bP + Nextline); color3 = *(bP + Nextline + 1); colorS1 = *(bP + Nextline + 2); colorA0 = *(bP + Nextline + Nextline - 1); colorA1 = *(bP + Nextline + Nextline); colorA2 = *(bP + Nextline + Nextline + 1); colorA3 = *(bP + Nextline + Nextline + 2); //-------------------------------------- if (color2 == color6 && color5 != color3) { product2b = product1b = color2; } else if (color5 == color3 && color2 != color6) { product2b = product1b = color5; } else if (color5 == color3 && color2 == color6) { register int r = 0; r += GetResult (color6, color5, color1, colorA1); r += GetResult (color6, color5, color4, colorB1); r += GetResult (color6, color5, colorA2, colorS1); r += GetResult (color6, color5, colorB2, colorS2); if (r > 0) product2b = product1b = color6; else if (r < 0) product2b = product1b = color5; else { product2b = product1b = INTERPOLATE (color5, color6); } } else { if (color6 == color3 && color3 == colorA1 && color2 != colorA2 && color3 != colorA0) product2b = Q_INTERPOLATE (color3, color3, color3, color2); else if (color5 == color2 && color2 == colorA2 && colorA1 != color3 && color2 != colorA3) product2b = Q_INTERPOLATE (color2, color2, color2, color3); else product2b = INTERPOLATE (color2, color3); if (color6 == color3 && color6 == colorB1 && color5 != colorB2 && color6 != colorB0) product1b = Q_INTERPOLATE (color6, color6, color6, color5); else if (color5 == color2 && color5 == colorB2 && colorB1 != color6 && color5 != colorB3) product1b = Q_INTERPOLATE (color6, color5, color5, color5); else product1b = INTERPOLATE (color5, color6); } if (color5 == color3 && color2 != color6 && color4 == color5 && color5 != colorA2) product2a = INTERPOLATE (color2, color5); else if (color5 == color1 && color6 == color5 && color4 != color2 && color5 != colorA0) product2a = INTERPOLATE (color2, color5); else product2a = color2; if (color2 == color6 && color5 != color3 && color1 == color2 && color2 != colorB2) product1a = INTERPOLATE (color2, color5); else if (color4 == color2 && color3 == color2 && color1 != color5 && color2 != colorB0) product1a = INTERPOLATE (color2, color5); else product1a = color5; #ifdef MSB_FIRST product1a = product1b | (product1a << 16); product2a = product2b | (product2a << 16); #else product1a = product1a | (product1b << 16); product2a = product2a | (product2b << 16); #endif *((uint32 *) dP) = product1a; *((uint32 *) (dP + dstPitch)) = product2a; bP += inc_bP; dP += sizeof (uint32); } // end of for ( finish= width etc..) srcPtr += srcPitch; dstPtr += dstPitch * 2; deltaPtr += srcPitch; } // while (height--) } } void SuperEagle (uint8 *srcPtr, uint32 srcPitch, uint8 *deltaPtr, uint8 *dstPtr, uint32 dstPitch, int width, int height) { uint8 *dP; uint16 *bP; uint16 *xP; uint32 inc_bP; #ifdef MMX if (cpu_mmx) { while (height--) { _2xSaISuperEagleLine (srcPtr, deltaPtr, srcPitch, width, dstPtr, dstPitch); srcPtr += srcPitch; dstPtr += dstPitch * 2; deltaPtr += srcPitch; } } else #endif { inc_bP = 1; uint32 Nextline = srcPitch >> 1; while (height--) { bP = (uint16 *) srcPtr; xP = (uint16 *) deltaPtr; dP = dstPtr; for (uint32 finish = width; finish; finish -= inc_bP) { uint32 color4, color5, color6; uint32 color1, color2, color3; uint32 colorA1, colorA2, colorB1, colorB2, colorS1, colorS2; uint32 product1a, product1b, product2a, product2b; colorB1 = *(bP - Nextline); colorB2 = *(bP - Nextline + 1); color4 = *(bP - 1); color5 = *(bP); color6 = *(bP + 1); colorS2 = *(bP + 2); color1 = *(bP + Nextline - 1); color2 = *(bP + Nextline); color3 = *(bP + Nextline + 1); colorS1 = *(bP + Nextline + 2); colorA1 = *(bP + Nextline + Nextline); colorA2 = *(bP + Nextline + Nextline + 1); // -------------------------------------- if (color2 == color6 && color5 != color3) { product1b = product2a = color2; if ((color1 == color2) || (color6 == colorB2)) { product1a = INTERPOLATE (color2, color5); product1a = INTERPOLATE (color2, product1a); // product1a = color2; } else { product1a = INTERPOLATE (color5, color6); } if ((color6 == colorS2) || (color2 == colorA1)) { product2b = INTERPOLATE (color2, color3); product2b = INTERPOLATE (color2, product2b); // product2b = color2; } else { product2b = INTERPOLATE (color2, color3); } } else if (color5 == color3 && color2 != color6) { product2b = product1a = color5; if ((colorB1 == color5) || (color3 == colorS1)) { product1b = INTERPOLATE (color5, color6); product1b = INTERPOLATE (color5, product1b); // product1b = color5; } else { product1b = INTERPOLATE (color5, color6); } if ((color3 == colorA2) || (color4 == color5)) { product2a = INTERPOLATE (color5, color2); product2a = INTERPOLATE (color5, product2a); // product2a = color5; } else { product2a = INTERPOLATE (color2, color3); } } else if (color5 == color3 && color2 == color6) { register int r = 0; r += GetResult (color6, color5, color1, colorA1); r += GetResult (color6, color5, color4, colorB1); r += GetResult (color6, color5, colorA2, colorS1); r += GetResult (color6, color5, colorB2, colorS2); if (r > 0) { product1b = product2a = color2; product1a = product2b = INTERPOLATE (color5, color6); } else if (r < 0) { product2b = product1a = color5; product1b = product2a = INTERPOLATE (color5, color6); } else { product2b = product1a = color5; product1b = product2a = color2; } } else { product2b = product1a = INTERPOLATE (color2, color6); product2b = Q_INTERPOLATE (color3, color3, color3, product2b); product1a = Q_INTERPOLATE (color5, color5, color5, product1a); product2a = product1b = INTERPOLATE (color5, color3); product2a = Q_INTERPOLATE (color2, color2, color2, product2a); product1b = Q_INTERPOLATE (color6, color6, color6, product1b); // product1a = color5; // product1b = color6; // product2a = color2; // product2b = color3; } #ifdef MSB_FIRST product1a = product1b | (product1a << 16); product2a = product2b | (product2a << 16); #else product1a = product1a | (product1b << 16); product2a = product2a | (product2b << 16); #endif *((uint32 *) dP) = product1a; *((uint32 *) (dP + dstPitch)) = product2a; *xP = color5; bP += inc_bP; xP += inc_bP; dP += sizeof (uint32); } // end of for ( finish= width etc..) srcPtr += srcPitch; dstPtr += dstPitch * 2; deltaPtr += srcPitch; } // endof: while (height--) } } void _2xSaI (uint8 *srcPtr, uint32 srcPitch, uint8 *deltaPtr, uint8 *dstPtr, uint32 dstPitch, int width, int height) { uint8 *dP; uint16 *bP; uint32 inc_bP; #ifdef MMX if (cpu_mmx) { while (height--) { _2xSaILine (srcPtr, deltaPtr, srcPitch, width, dstPtr, dstPitch); srcPtr += srcPitch; dstPtr += dstPitch * 2; deltaPtr += srcPitch; } } else #endif { inc_bP = 1; uint32 Nextline = srcPitch >> 1; while (height--) { bP = (uint16 *) srcPtr; dP = dstPtr; for (uint32 finish = width; finish; finish -= inc_bP) { register uint32 colorA, colorB; uint32 colorC, colorD, colorE, colorF, colorG, colorH, colorI, colorJ, colorK, colorL, colorM, colorN, colorO, colorP; uint32 product, product1, product2; //--------------------------------------- // Map of the pixels: I|E F|J // G|A B|K // H|C D|L // M|N O|P colorI = *(bP - Nextline - 1); colorE = *(bP - Nextline); colorF = *(bP - Nextline + 1); colorJ = *(bP - Nextline + 2); colorG = *(bP - 1); colorA = *(bP); colorB = *(bP + 1); colorK = *(bP + 2); colorH = *(bP + Nextline - 1); colorC = *(bP + Nextline); colorD = *(bP + Nextline + 1); colorL = *(bP + Nextline + 2); colorM = *(bP + Nextline + Nextline - 1); colorN = *(bP + Nextline + Nextline); colorO = *(bP + Nextline + Nextline + 1); colorP = *(bP + Nextline + Nextline + 2); if ((colorA == colorD) && (colorB != colorC)) { if (((colorA == colorE) && (colorB == colorL)) || ((colorA == colorC) && (colorA == colorF) && (colorB != colorE) && (colorB == colorJ))) { product = colorA; } else { product = INTERPOLATE (colorA, colorB); } if (((colorA == colorG) && (colorC == colorO)) || ((colorA == colorB) && (colorA == colorH) && (colorG != colorC) && (colorC == colorM))) { product1 = colorA; } else { product1 = INTERPOLATE (colorA, colorC); } product2 = colorA; } else if ((colorB == colorC) && (colorA != colorD)) { if (((colorB == colorF) && (colorA == colorH)) || ((colorB == colorE) && (colorB == colorD) && (colorA != colorF) && (colorA == colorI))) { product = colorB; } else { product = INTERPOLATE (colorA, colorB); } if (((colorC == colorH) && (colorA == colorF)) || ((colorC == colorG) && (colorC == colorD) && (colorA != colorH) && (colorA == colorI))) { product1 = colorC; } else { product1 = INTERPOLATE (colorA, colorC); } product2 = colorB; } else if ((colorA == colorD) && (colorB == colorC)) { if (colorA == colorB) { product = colorA; product1 = colorA; product2 = colorA; } else { register int r = 0; product1 = INTERPOLATE (colorA, colorC); product = INTERPOLATE (colorA, colorB); r += GetResult1 (colorA, colorB, colorG, colorE, colorI); r += GetResult2 (colorB, colorA, colorK, colorF, colorJ); r += GetResult2 (colorB, colorA, colorH, colorN, colorM); r += GetResult1 (colorA, colorB, colorL, colorO, colorP); if (r > 0) product2 = colorA; else if (r < 0) product2 = colorB; else { product2 = Q_INTERPOLATE (colorA, colorB, colorC, colorD); } } } else { product2 = Q_INTERPOLATE (colorA, colorB, colorC, colorD); if ((colorA == colorC) && (colorA == colorF) && (colorB != colorE) && (colorB == colorJ)) { product = colorA; } else if ((colorB == colorE) && (colorB == colorD) && (colorA != colorF) && (colorA == colorI)) { product = colorB; } else { product = INTERPOLATE (colorA, colorB); } if ((colorA == colorB) && (colorA == colorH) && (colorG != colorC) && (colorC == colorM)) { product1 = colorA; } else if ((colorC == colorG) && (colorC == colorD) && (colorA != colorH) && (colorA == colorI)) { product1 = colorC; } else { product1 = INTERPOLATE (colorA, colorC); } } #ifdef MSB_FIRST product = product | (colorA << 16); product1 = product2 | (product1 << 16); #else product = colorA | (product << 16); product1 = product1 | (product2 << 16); #endif *((int32 *) dP) = product; *((uint32 *) (dP + dstPitch)) = product1; bP += inc_bP; dP += sizeof (uint32); } // end of for ( finish= width etc..) srcPtr += srcPitch; dstPtr += dstPitch * 2; deltaPtr += srcPitch; } // endof: while (height--) } } #ifdef MMX void Scale_2xSaI (uint8 *srcPtr, uint32 srcPitch, uint8 * /* deltaPtr */, uint8 *dstPtr, uint32 dstPitch, uint32 dstWidth, uint32 dstHeight, int width, int height) { uint8 *dP; uint16 *bP; uint32 w; uint32 h; uint32 dw; uint32 dh; uint32 hfinish; uint32 wfinish; uint32 Nextline; uint16 colorA[4]; uint16 colorB[4]; uint16 colorC[4]; uint16 colorD[4]; uint16 dx[4]; uint16 dy[4]; Nextline = srcPitch >> 1; wfinish = (width - 1) << 16; // convert to fixed point hfinish = (height - 1) << 16; // convert to fixed point dw = wfinish / (dstWidth - 1); dh = hfinish / (dstHeight - 1); for (h = 0; h < hfinish; h += dh) { uint32 y1, y2; y1 = h & 0xffff; // fraction part of fixed point y2 = 0x10000 - y1; bP = (uint16 *) (srcPtr + ((h >> 16) * srcPitch)); dP = dstPtr; for (w = 0; w < wfinish;) { uint32 A, B, C, D; uint32 E, F, G, H; uint32 I, J, K, L; uint32 x1, x2, a1, f1, f2; uint32 position; for (int c = 0; c < 4; c++) { position = w >> 16; A = bP[position]; // current pixel B = bP[position + 1]; // next pixel C = bP[position + Nextline]; D = bP[position + Nextline + 1]; E = bP[position - Nextline]; F = bP[position - Nextline + 1]; G = bP[position - 1]; H = bP[position + Nextline - 1]; I = bP[position + 2]; J = bP[position + Nextline + 2]; K = bP[position + Nextline + Nextline]; L = bP[position + Nextline + Nextline + 1]; x1 = w & 0xffff; // fraction part of fixed point x2 = 0x10000 - x1; /*1*/ if (A == D && B != C) { f1 = (x1 >> 1) + (0x10000 >> 2); f2 = (y1 >> 1) + (0x10000 >> 2); if (y1 <= f1 && A == J && A != E) // close to B { a1 = f1 - y1; colorA[c] = A; colorB[c] = B; colorC[c] = 0; colorD[c] = 0; dx[c] = a1; dy[c] = 0; } else if (y1 >= f1 && A == G && A != L) // close to C { a1 = y1 - f1; colorA[c] = A; colorB[c] = C; colorC[c] = 0; colorD[c] = 0; dx[c] = a1; dy[c] = 0; } else if (x1 >= f2 && A == E && A != J) // close to B { a1 = x1 - f2; colorA[c] = A; colorB[c] = B; colorC[c] = 0; colorD[c] = 0; dx[c] = a1; dy[c] = 0; } else if (x1 <= f2 && A == L && A != G) // close to C { a1 = f2 - x1; colorA[c] = A; colorB[c] = C; colorC[c] = 0; colorD[c] = 0; dx[c] = a1; dy[c] = 0; } else if (y1 >= x1) // close to C { a1 = y1 - x1; colorA[c] = A; colorB[c] = C; colorC[c] = 0; colorD[c] = 0; dx[c] = a1; dy[c] = 0; } else if (y1 <= x1) // close to B { a1 = x1 - y1; colorA[c] = A; colorB[c] = B; colorC[c] = 0; colorD[c] = 0; dx[c] = a1; dy[c] = 0; } } else /*2*/ if (B == C && A != D) { f1 = (x1 >> 1) + (0x10000 >> 2); f2 = (y1 >> 1) + (0x10000 >> 2); if (y2 >= f1 && B == H && B != F) // close to A { a1 = y2 - f1; colorA[c] = B; colorB[c] = A; colorC[c] = 0; colorD[c] = 0; dx[c] = a1; dy[c] = 0; } else if (y2 <= f1 && B == I && B != K) // close to D { a1 = f1 - y2; colorA[c] = B; colorB[c] = D; colorC[c] = 0; colorD[c] = 0; dx[c] = a1; dy[c] = 0; } else if (x2 >= f2 && B == F && B != H) // close to A { a1 = x2 - f2; colorA[c] = B; colorB[c] = A; colorC[c] = 0; colorD[c] = 0; dx[c] = a1; dy[c] = 0; } else if (x2 <= f2 && B == K && B != I) // close to D { a1 = f2 - x2; colorA[c] = B; colorB[c] = D; colorC[c] = 0; colorD[c] = 0; dx[c] = a1; dy[c] = 0; } else if (y2 >= x1) // close to A { a1 = y2 - x1; colorA[c] = B; colorB[c] = A; colorC[c] = 0; colorD[c] = 0; dx[c] = a1; dy[c] = 0; } else if (y2 <= x1) // close to D { a1 = x1 - y2; colorA[c] = B; colorB[c] = D; colorC[c] = 0; colorD[c] = 0; dx[c] = a1; dy[c] = 0; } } /*3*/ else { colorA[c] = A; colorB[c] = B; colorC[c] = C; colorD[c] = D; dx[c] = x1; dy[c] = y1; } w += dw; } BilinearMMX (colorA, colorB, colorC, colorD, dx, dy, dP); dP += 8; } dstPtr += dstPitch; }; EndMMX (); } #else static uint32 Bilinear (uint32 A, uint32 B, uint32 x) { unsigned long areaA, areaB; unsigned long result; if (A == B) return A; areaB = (x >> 11) & 0x1f; // reduce 16 bit fraction to 5 bits areaA = 0x20 - areaB; A = (A & redblueMask) | ((A & greenMask) << 16); B = (B & redblueMask) | ((B & greenMask) << 16); result = ((areaA * A) + (areaB * B)) >> 5; return (result & redblueMask) | ((result >> 16) & greenMask); } static uint32 Bilinear4 (uint32 A, uint32 B, uint32 C, uint32 D, uint32 x, uint32 y) { unsigned long areaA, areaB, areaC, areaD; unsigned long result, xy; x = (x >> 11) & 0x1f; y = (y >> 11) & 0x1f; xy = (x * y) >> 5; A = (A & redblueMask) | ((A & greenMask) << 16); B = (B & redblueMask) | ((B & greenMask) << 16); C = (C & redblueMask) | ((C & greenMask) << 16); D = (D & redblueMask) | ((D & greenMask) << 16); areaA = 0x20 + xy - x - y; areaB = x - xy; areaC = y - xy; areaD = xy; result = ((areaA * A) + (areaB * B) + (areaC * C) + (areaD * D)) >> 5; return (result & redblueMask) | ((result >> 16) & greenMask); } void Scale_2xSaI (uint8 *srcPtr, uint32 srcPitch, uint8 * /* deltaPtr */, uint8 *dstPtr, uint32 dstPitch, uint32 dstWidth, uint32 dstHeight, int width, int height) { uint8 *dP; uint16 *bP; uint32 w; uint32 h; uint32 dw; uint32 dh; uint32 hfinish; uint32 wfinish; uint32 Nextline = srcPitch >> 1; wfinish = (width - 1) << 16; // convert to fixed point dw = wfinish / (dstWidth - 1); hfinish = (height - 1) << 16; // convert to fixed point dh = hfinish / (dstHeight - 1); for (h = 0; h < hfinish; h += dh) { uint32 y1, y2; y1 = h & 0xffff; // fraction part of fixed point bP = (uint16 *) (srcPtr + ((h >> 16) * srcPitch)); dP = dstPtr; y2 = 0x10000 - y1; w = 0; for (; w < wfinish;) { uint32 A, B, C, D; uint32 E, F, G, H; uint32 I, J, K, L; uint32 x1, x2, a1, f1, f2; uint32 position, product1; position = w >> 16; A = bP[position]; // current pixel B = bP[position + 1]; // next pixel C = bP[position + Nextline]; D = bP[position + Nextline + 1]; E = bP[position - Nextline]; F = bP[position - Nextline + 1]; G = bP[position - 1]; H = bP[position + Nextline - 1]; I = bP[position + 2]; J = bP[position + Nextline + 2]; K = bP[position + Nextline + Nextline]; L = bP[position + Nextline + Nextline + 1]; x1 = w & 0xffff; // fraction part of fixed point x2 = 0x10000 - x1; /*0*/ if (A == B && C == D && A == C) product1 = A; else /*1*/ if (A == D && B != C) { f1 = (x1 >> 1) + (0x10000 >> 2); f2 = (y1 >> 1) + (0x10000 >> 2); if (y1 <= f1 && A == J && A != E) // close to B { a1 = f1 - y1; product1 = Bilinear (A, B, a1); } else if (y1 >= f1 && A == G && A != L) // close to C { a1 = y1 - f1; product1 = Bilinear (A, C, a1); } else if (x1 >= f2 && A == E && A != J) // close to B { a1 = x1 - f2; product1 = Bilinear (A, B, a1); } else if (x1 <= f2 && A == L && A != G) // close to C { a1 = f2 - x1; product1 = Bilinear (A, C, a1); } else if (y1 >= x1) // close to C { a1 = y1 - x1; product1 = Bilinear (A, C, a1); } else if (y1 <= x1) // close to B { a1 = x1 - y1; product1 = Bilinear (A, B, a1); } } else /*2*/ if (B == C && A != D) { f1 = (x1 >> 1) + (0x10000 >> 2); f2 = (y1 >> 1) + (0x10000 >> 2); if (y2 >= f1 && B == H && B != F) // close to A { a1 = y2 - f1; product1 = Bilinear (B, A, a1); } else if (y2 <= f1 && B == I && B != K) // close to D { a1 = f1 - y2; product1 = Bilinear (B, D, a1); } else if (x2 >= f2 && B == F && B != H) // close to A { a1 = x2 - f2; product1 = Bilinear (B, A, a1); } else if (x2 <= f2 && B == K && B != I) // close to D { a1 = f2 - x2; product1 = Bilinear (B, D, a1); } else if (y2 >= x1) // close to A { a1 = y2 - x1; product1 = Bilinear (B, A, a1); } else if (y2 <= x1) // close to D { a1 = x1 - y2; product1 = Bilinear (B, D, a1); } } /*3*/ else { product1 = Bilinear4 (A, B, C, D, x1, y1); } //end First Pixel *(uint32 *) dP = product1; dP += 2; w += dw; } dstPtr += dstPitch; } } #endif