/* ScummVM - Scumm Interpreter * Copyright (C) 2001 Ludvig Strigeus * Copyright (C) 2001-2005 The ScummVM project * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * This program 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 General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * * $Header$ * */ #include "common/scaler/intern.h" static inline int GetResult(uint32 A, uint32 B, uint32 C, uint32 D) { const bool ac = (A==C); const bool bc = (B==C); const int x1 = ac; const int y1 = (bc & !ac); const bool ad = (A==D); const bool bd = (B==D); const int x2 = ad; const int y2 = (bd & !ad); const int x = x1+x2; const int y = y1+y2; static const int rmap[3][3] = { {0, 0, -1}, {0, 0, -1}, {1, 1, 0} }; return rmap[y][x]; } #define INTERPOLATE INTERPOLATE #define Q_INTERPOLATE Q_INTERPOLATE template void Super2xSaITemplate(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height) { const uint16 *bP; uint16 *dP; const uint32 nextlineSrc = srcPitch >> 1; while (height--) { bP = (const uint16 *)srcPtr; dP = (uint16 *)dstPtr; for (int i = 0; i < width; ++i) { uint32 color4, color5, color6; uint32 color1, color2, color3; uint32 colorA0, colorA1, colorA2, colorA3; uint32 colorB0, colorB1, colorB2, colorB3; uint32 colorS1, colorS2; uint32 product1a, product1b, product2a, product2b; //--------------------------------------- B1 B2 // 4 5 6 S2 // 1 2 3 S1 // A1 A2 colorB0 = *(bP - nextlineSrc - 1); colorB1 = *(bP - nextlineSrc); colorB2 = *(bP - nextlineSrc + 1); colorB3 = *(bP - nextlineSrc + 2); color4 = *(bP - 1); color5 = *(bP); color6 = *(bP + 1); colorS2 = *(bP + 2); color1 = *(bP + nextlineSrc - 1); color2 = *(bP + nextlineSrc); color3 = *(bP + nextlineSrc + 1); colorS1 = *(bP + nextlineSrc + 2); colorA0 = *(bP + 2 * nextlineSrc - 1); colorA1 = *(bP + 2 * nextlineSrc); colorA2 = *(bP + 2 * nextlineSrc + 1); colorA3 = *(bP + 2 * nextlineSrc + 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; *(dP + 0) = (uint16) product1a; *(dP + 1) = (uint16) product1b; *(dP + dstPitch/2 + 0) = (uint16) product2a; *(dP + dstPitch/2 + 1) = (uint16) product2b; bP += 1; dP += 2; } srcPtr += srcPitch; dstPtr += dstPitch * 2; } } MAKE_WRAPPER(Super2xSaI) template void SuperEagleTemplate(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height) { const uint16 *bP; uint16 *dP; const uint32 nextlineSrc = srcPitch >> 1; while (height--) { bP = (const uint16 *)srcPtr; dP = (uint16 *)dstPtr; for (int i = 0; i < width; ++i) { uint32 color4, color5, color6; uint32 color1, color2, color3; uint32 colorA1, colorA2, colorB1, colorB2, colorS1, colorS2; uint32 product1a, product1b, product2a, product2b; colorB1 = *(bP - nextlineSrc); colorB2 = *(bP - nextlineSrc + 1); color4 = *(bP - 1); color5 = *(bP); color6 = *(bP + 1); colorS2 = *(bP + 2); color1 = *(bP + nextlineSrc - 1); color2 = *(bP + nextlineSrc); color3 = *(bP + nextlineSrc + 1); colorS1 = *(bP + nextlineSrc + 2); colorA1 = *(bP + 2 * nextlineSrc); colorA2 = *(bP + 2 * nextlineSrc + 1); // -------------------------------------- if (color5 != color3) { if (color2 == color6) { product1b = product2a = color2; if ((color1 == color2) || (color6 == colorB2)) { product1a = INTERPOLATE(color2, color5); product1a = INTERPOLATE(color2, product1a); } else { product1a = INTERPOLATE(color5, color6); } if ((color6 == colorS2) || (color2 == colorA1)) { product2b = INTERPOLATE(color2, color3); product2b = INTERPOLATE(color2, product2b); } else { product2b = INTERPOLATE(color2, color3); } } 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); } } else { if (color2 != color6) { product2b = product1a = color5; if ((colorB1 == color5) || (color3 == colorS1)) { product1b = INTERPOLATE(color5, color6); product1b = INTERPOLATE(color5, product1b); } else { product1b = INTERPOLATE(color5, color6); } if ((color3 == colorA2) || (color4 == color5)) { product2a = INTERPOLATE(color5, color2); product2a = INTERPOLATE(color5, product2a); } else { product2a = INTERPOLATE(color2, color3); } } else { 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; } } } *(dP + 0) = (uint16) product1a; *(dP + 1) = (uint16) product1b; *(dP + dstPitch/2 + 0) = (uint16) product2a; *(dP + dstPitch/2 + 1) = (uint16) product2b; bP += 1; dP += 2; } srcPtr += srcPitch; dstPtr += dstPitch * 2; } } MAKE_WRAPPER(SuperEagle) template void _2xSaITemplate(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height) { const uint16 *bP; uint16 *dP; const uint32 nextlineSrc = srcPitch >> 1; while (height--) { bP = (const uint16 *)srcPtr; dP = (uint16 *)dstPtr; for (int i = 0; i < width; ++i) { 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 - nextlineSrc - 1); colorE = *(bP - nextlineSrc); colorF = *(bP - nextlineSrc + 1); colorJ = *(bP - nextlineSrc + 2); colorG = *(bP - 1); colorA = *(bP); colorB = *(bP + 1); colorK = *(bP + 2); colorH = *(bP + nextlineSrc - 1); colorC = *(bP + nextlineSrc); colorD = *(bP + nextlineSrc + 1); colorL = *(bP + nextlineSrc + 2); colorM = *(bP + 2 * nextlineSrc - 1); colorN = *(bP + 2 * nextlineSrc); colorO = *(bP + 2 * nextlineSrc + 1); colorP = *(bP + 2 * nextlineSrc + 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 += GetResult(colorA, colorB, colorG, colorE); r -= GetResult(colorB, colorA, colorK, colorF); r -= GetResult(colorB, colorA, colorH, colorN); r += GetResult(colorA, colorB, colorL, colorO); 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); } } *(dP + 0) = (uint16) colorA; *(dP + 1) = (uint16) product; *(dP + dstPitch/2 + 0) = (uint16) product1; *(dP + dstPitch/2 + 1) = (uint16) product2; bP += 1; dP += 2; } srcPtr += srcPitch; dstPtr += dstPitch * 2; } } MAKE_WRAPPER(_2xSaI)