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Diffstat (limited to 'engines/toltecs/palette.cpp')
| -rw-r--r-- | engines/toltecs/palette.cpp | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/engines/toltecs/palette.cpp b/engines/toltecs/palette.cpp new file mode 100644 index 0000000000..6ff20ff3d7 --- /dev/null +++ b/engines/toltecs/palette.cpp @@ -0,0 +1,157 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * 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. + * + * + */ + +#include "common/events.h" +#include "common/keyboard.h" +#include "common/file.h" +#include "common/savefile.h" +#include "common/config-manager.h" + +#include "base/plugins.h" +#include "base/version.h" + +#include "sound/mixer.h" + +#include "toltecs/toltecs.h" +#include "toltecs/palette.h" +#include "toltecs/resource.h" + +namespace Toltecs { + +Palette::Palette(ToltecsEngine *vm) : _vm(vm) { + + clearFragments(); + +} + +Palette::~Palette() { +} + +void Palette::setFullPalette(byte *palette) { + byte colors[1024]; + for (int i = 0; i < 256; i++) { + colors[i * 4 + 0] = palette[i * 3 + 0] << 2; + colors[i * 4 + 1] = palette[i * 3 + 1] << 2; + colors[i * 4 + 2] = palette[i * 3 + 2] << 2; + colors[i * 4 + 3] = 255; + } + _vm->_system->setPalette((const byte *)colors, 0, 256); + _vm->_system->updateScreen(); +} + +void Palette::setDeltaPalette(byte *palette, byte mask, char deltaValue, int16 count, int16 startIndex) { + + byte colors[1024]; + + byte *palPtr = palette + startIndex * 3; + int16 index = startIndex, colorCount = count; + byte rgb; + + count++; + + mask &= 7; + + _vm->_system->grabPalette(colors, 0, 256); + + if (deltaValue < 0) { + deltaValue = -deltaValue; + while (count--) { + rgb = *palPtr++; + if (mask & 1) colors[index * 4 + 0] = CLIP<int>(rgb + deltaValue, 0, 63) << 2; + rgb = *palPtr++; + if (mask & 2) colors[index * 4 + 1] = CLIP<int>(rgb + deltaValue, 0, 63) << 2; + rgb = *palPtr++; + if (mask & 4) colors[index * 4 + 2] = CLIP<int>(rgb + deltaValue, 0, 63) << 2; + index++; + } + } else { + while (count--) { + rgb = *palPtr++; + if (mask & 1) colors[index * 4 + 0] = CLIP<int>(rgb - deltaValue, deltaValue, 255) << 2; + rgb = *palPtr++; + if (mask & 2) colors[index * 4 + 1] = CLIP<int>(rgb - deltaValue, deltaValue, 255) << 2; + rgb = *palPtr++; + if (mask & 4) colors[index * 4 + 2] = CLIP<int>(rgb - deltaValue, deltaValue, 255) << 2; + index++; + } + } + + debug(0, "startIndex = %d; colorCount = %d", startIndex, colorCount); + + _vm->_system->setPalette((const byte *)colors, 0, 256); + +} + +void Palette::loadAddPalette(uint resIndex, byte startIndex) { + byte *data = _vm->_res->load(resIndex); + memcpy(&_mainPalette[startIndex * 3], data, _vm->_res->getCurItemSize()); +} + +void Palette::loadAddPaletteFrom(byte *source, byte startIndex, byte count) { + memcpy(&_mainPalette[startIndex * 3], source, count * 3); +} + +void Palette::addFragment(uint resIndex, int16 id) { + debug(0, "Palette::addFragment(%d, %d)", resIndex, id); + + byte *fragmentData = _vm->_res->load(resIndex); + byte count = _vm->_res->getCurItemSize() / 3; + + memcpy(&_mainPalette[_fragmentIndex * 3], fragmentData, count * 3); + + PaletteFragment fragment; + fragment.id = id; + fragment.index = _fragmentIndex; + fragment.count = count; + _fragments.push_back(fragment); + + debug(0, "Palette::addFragment() index = %02X; count = %02X", fragment.index, fragment.count); + + _fragmentIndex += count; + +} + +uint16 Palette::findFragment(int16 id) { + debug(0, "Palette::findFragment(%d)", id); + + uint16 result = 0; + for (PaletteFragmentArray::iterator iter = _fragments.begin(); iter != _fragments.end(); iter++) { + PaletteFragment fragment = *iter; + if (fragment.id == id) { + result = (fragment.count << 8) | fragment.index; + break; + } + } + + debug(0, "Palette::findFragment() result = %04X", result); + + return result; +} + +void Palette::clearFragments() { + debug(0, "Palette::clearFragments()"); + _fragmentIndex = 128; + _fragments.clear(); +} + +} // End of namespace Toltecs |