/* * The ManaPlus Client * Copyright (C) 2007-2009 The Mana World Development Team * Copyright (C) 2009-2010 The Mana Developers * Copyright (C) 2011-2014 The ManaPlus Developers * * This file is part of The ManaPlus Client. * * 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 * 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, see <http://www.gnu.org/licenses/>. */ #include "resources/dyepalette.h" #include "logger.h" #include "resources/db/palettedb.h" #include <cmath> #include <SDL_endian.h> #include "debug.h" DyePalette::DyePalette(const std::string &description, const uint8_t blockSize) : mColors() { const size_t size = static_cast<size_t>(description.length()); if (size == 0) return; if (description[0] == '#') { size_t pos = 1; for ( ; ; ) { if (pos + blockSize > size) break; DyeColor color(0, 0, 0, 0); for (size_t i = 0, colorIdx = 0; i < blockSize && colorIdx < 4; i += 2, colorIdx ++) { color.value[colorIdx] = static_cast<unsigned char>(( hexDecode(description[pos + i]) << 4) + hexDecode(description[pos + i + 1])); } mColors.push_back(color); pos += blockSize; if (pos == size) return; if (description[pos] != ',') break; ++pos; } } else if (description[0] == '@') { size_t pos = 1; for ( ; pos < size ; ) { const size_t idx = description.find(',', pos); if (idx == std::string::npos) return; if (idx == pos) break; mColors.push_back(PaletteDB::getColor( description.substr(pos, idx - pos))); pos = idx + 1; } } logger->log("Error, invalid embedded palette: %s", description.c_str()); } unsigned int DyePalette::hexDecode(const signed char c) { if ('0' <= c && c <= '9') return c - '0'; else if ('A' <= c && c <= 'F') return c - 'A' + 10; else if ('a' <= c && c <= 'f') return c - 'a' + 10; else return 0; } void DyePalette::getColor(const unsigned int intensity, unsigned int color[3]) const { if (intensity == 0) { color[0] = 0; color[1] = 0; color[2] = 0; return; } const int last = static_cast<int>(mColors.size()); if (last == 0) return; const int intLast = intensity * last; const int i = intLast / 255; const int t = intLast % 255; int j = t != 0 ? i : i - 1; if (j >= last) j = 0; // Get the exact color if any, the next color otherwise. const int r2 = mColors[j].value[0]; const int g2 = mColors[j].value[1]; const int b2 = mColors[j].value[2]; if (t == 0) { // Exact color. color[0] = r2; color[1] = g2; color[2] = b2; return; } // Get the previous color. First color is implicitly black. int r1 = 0, g1 = 0, b1 = 0; if (i > 0 && i < last + 1) { r1 = mColors[i - 1].value[0]; g1 = mColors[i - 1].value[1]; b1 = mColors[i - 1].value[2]; } // Perform a linear interpolation. color[0] = ((255 - t) * r1 + t * r2) / 255; color[1] = ((255 - t) * g1 + t * g2) / 255; color[2] = ((255 - t) * b1 + t * b2) / 255; } void DyePalette::getColor(double intensity, int color[3]) const { // Nothing to do here if (mColors.empty()) return; // Force range if (intensity > 1.0) intensity = 1.0; else if (intensity < 0.0) intensity = 0.0; // Scale up intensity *= static_cast<double>(mColors.size() - 1); // Color indices const int i = static_cast<int>(floor(intensity)); const int j = static_cast<int>(ceil(intensity)); if (i == j) { // Exact color. color[0] = mColors[i].value[0]; color[1] = mColors[i].value[1]; color[2] = mColors[i].value[2]; return; } intensity -= i; const double rest = 1 - intensity; // Get the colors const int r1 = mColors[i].value[0]; const int g1 = mColors[i].value[1]; const int b1 = mColors[i].value[2]; const int r2 = mColors[j].value[0]; const int g2 = mColors[j].value[1]; const int b2 = mColors[j].value[2]; // Perform the interpolation. color[0] = static_cast<int>(rest * r1 + intensity * r2); color[1] = static_cast<int>(rest * g1 + intensity * g2); color[2] = static_cast<int>(rest * b1 + intensity * b2); } void DyePalette::replaceSColor(uint32_t *restrict pixels, const int bufSize) const { std::vector<DyeColor>::const_iterator it_end = mColors.end(); const size_t sz = mColors.size(); if (!sz) return; if (sz % 2) -- it_end; for (uint32_t *p_end = pixels + static_cast<size_t>(bufSize); pixels != p_end; ++pixels) { uint8_t *const p = reinterpret_cast<uint8_t *>(pixels); #if SDL_BYTEORDER == SDL_BIG_ENDIAN const int alpha = *pixels & 0xff000000; const unsigned int data = (*pixels) & 0x00ffffff; #else const int alpha = *p & 0xff; const unsigned int data = (*pixels) & 0xffffff00; #endif // logger->log("c:%04d %08x", c, *pixels); // logger->log("data: %08x", data); if (!alpha) { // logger->log("skip: %08x", *pixels); continue; } std::vector<DyeColor>::const_iterator it = mColors.begin(); while (it != it_end) { const DyeColor &col = *it; ++ it; const DyeColor &col2 = *it; #if SDL_BYTEORDER == SDL_BIG_ENDIAN const unsigned int coldata = (col.value[2] << 16U) | (col.value[1] << 8U) | (col.value[0]); #else const unsigned int coldata = (col.value[2] << 8U) | (col.value[1] << 16U) | (col.value[0] << 24U); #endif // logger->log("coldata: %08x", coldata); if (data == coldata) { // logger->log("correct"); p[3] = col2.value[0]; p[2] = col2.value[1]; p[1] = col2.value[2]; break; } ++ it; } } } void DyePalette::replaceAColor(uint32_t *restrict pixels, const int bufSize) const { std::vector<DyeColor>::const_iterator it_end = mColors.end(); const size_t sz = mColors.size(); if (!sz) return; if (sz % 2) -- it_end; for (uint32_t *p_end = pixels + static_cast<size_t>(bufSize); pixels != p_end; ++pixels) { uint8_t *const p = reinterpret_cast<uint8_t *>(pixels); const unsigned int data = *pixels; std::vector<DyeColor>::const_iterator it = mColors.begin(); while (it != it_end) { const DyeColor &col = *it; ++ it; const DyeColor &col2 = *it; #if SDL_BYTEORDER == SDL_BIG_ENDIAN const unsigned int coldata = (col.value[3] << 24U) | (col.value[2] << 16U) | (col.value[1] << 8U) | (col.value[0]); #else const unsigned int coldata = (col.value[3]) | (col.value[2] << 8U) | (col.value[1] << 16U) | (col.value[0] << 24U); #endif if (data == coldata) { p[3] = col2.value[0]; p[2] = col2.value[1]; p[1] = col2.value[2]; p[0] = col2.value[3]; break; } ++ it; } } } void DyePalette::replaceSOGLColor(uint32_t *restrict pixels, const int bufSize) const { std::vector<DyeColor>::const_iterator it_end = mColors.end(); const size_t sz = mColors.size(); if (!sz) return; if (sz % 2) -- it_end; for (uint32_t *p_end = pixels + static_cast<size_t>(bufSize); pixels != p_end; ++pixels) { uint8_t *const p = reinterpret_cast<uint8_t *>(pixels); #if SDL_BYTEORDER == SDL_BIG_ENDIAN const int alpha = *p & 0xff; const unsigned int data = (*pixels) & 0xffffff00; #else const int alpha = *pixels & 0xff000000; const unsigned int data = (*pixels) & 0x00ffffff; #endif if (!alpha) continue; std::vector<DyeColor>::const_iterator it = mColors.begin(); while (it != it_end) { const DyeColor &col = *it; ++ it; const DyeColor &col2 = *it; #if SDL_BYTEORDER == SDL_BIG_ENDIAN const unsigned int coldata = (col.value[0] << 24) | (col.value[1] << 16) | (col.value[2] << 8); #else const unsigned int coldata = (col.value[0]) | (col.value[1] << 8) | (col.value[2] << 16); #endif if (data == coldata) { p[0] = col2.value[0]; p[1] = col2.value[1]; p[2] = col2.value[2]; break; } ++ it; } } } void DyePalette::replaceAOGLColor(uint32_t *restrict pixels, const int bufSize) const { std::vector<DyeColor>::const_iterator it_end = mColors.end(); const size_t sz = mColors.size(); if (!sz) return; if (sz % 2) -- it_end; for (uint32_t *p_end = pixels + static_cast<size_t>(bufSize); pixels != p_end; ++pixels) { uint8_t *const p = reinterpret_cast<uint8_t *>(pixels); const unsigned int data = *pixels; std::vector<DyeColor>::const_iterator it = mColors.begin(); while (it != it_end) { const DyeColor &col = *it; ++ it; const DyeColor &col2 = *it; #if SDL_BYTEORDER == SDL_BIG_ENDIAN const unsigned int coldata = (col.value[0] << 24U) | (col.value[1] << 16U) | (col.value[2] << 8U) | col.value[3]; #else const unsigned int coldata = (col.value[0]) | (col.value[1] << 8U) | (col.value[2] << 16U) | (col.value[3] << 24U); #endif if (data == coldata) { p[0] = col2.value[0]; p[1] = col2.value[1]; p[2] = col2.value[2]; p[3] = col2.value[3]; break; } ++ it; } } }