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578 lines
13 KiB
C++
578 lines
13 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "common/scummsys.h"
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#include "engines/util.h"
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#include "graphics/palette.h"
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#include "mads/mads.h"
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#include "mads/msurface.h"
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namespace MADS {
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void RGB6::load(Common::SeekableReadStream *f) {
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r = f->readByte();
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g = f->readByte();
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b = f->readByte();
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_palIndex = f->readByte();
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_u2 = f->readByte();
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_flags = f->readByte();
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}
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/*------------------------------------------------------------------------*/
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PaletteUsage::PaletteUsage(MADSEngine *vm) {
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_vm = vm;
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}
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void PaletteUsage::load(int count, ...) {
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va_list va;
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va_start(va, count);
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_data.clear();
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for (int i = 0; i < count; ++i)
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_data.push_back(va_arg(va, int));
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va_end(va);
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}
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void PaletteUsage::getKeyEntries(Common::Array<RGB6> &palette) {
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_data.clear();
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for (uint i = 0; i < palette.size(); ++i) {
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byte *uPtr = &palette[i]._flags;
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if ((*uPtr & 0x10) && _data.size() < 3) {
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_data.push_back(i);
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}
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}
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}
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void PaletteUsage::prioritize(Common::Array<RGB6> &palette) {
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int lst[3];
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for (uint i = 0; i < _data.size(); ++i) {
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RGB6 &palEntry = palette[_data[i]];
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lst[i] = rgbMerge(palEntry);
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}
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prioritizeFromList(lst);
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}
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int PaletteUsage::process(Common::Array<RGB6> &palette, int v) {
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byte *palette1 = nullptr, *palette2 = nullptr;
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int palLow;
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int palHigh = (v & 0x800) ? 0x100 : 0xC;
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int palIdx;
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assert(v >= 0);
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if (v & 0x4000) {
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palLow = 0;
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palIdx = palHigh;
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} else {
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palLow = _vm->_palette->_lowRange;
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if ((PALETTE_COUNT - _vm->_palette->_highRange) > palHigh) {
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palIdx = palHigh;
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} else {
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palIdx = PALETTE_COUNT - _vm->_palette->_highRange;
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}
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}
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int rgbIndex = _vm->_palette->_rgbList.scan();
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uint32 rgbMask = 1 << rgbIndex;
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int varA = v & 0x8000;
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bool hasUsage = !_vm->_palette->_paletteUsage.empty();
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bool flag1 = false;
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if (hasUsage) {
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if (varA || !_vm->_palette->_paletteUsage[0])
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hasUsage = false;
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if (varA && _vm->_palette->_paletteUsage[0])
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flag1 = true;
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}
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if (hasUsage) {
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getKeyEntries(palette);
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prioritize(palette);
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}
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int freeIndex;
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int palCount = getGamePalFreeIndex(&freeIndex);
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byte *pal1 = new byte[PALETTE_COUNT];
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byte *pal2 = new byte[PALETTE_COUNT];
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for (uint palIndex = 0; palIndex < palette.size(); ++palIndex) {
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pal2[palIndex] = palIndex;
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pal1[palIndex] = 0;
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if (!(palette[palIndex]._flags & 0x80)) {
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pal1[palIndex] = 0x40;
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}
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if (!(palette[palIndex]._flags & 0x60)) {
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pal1[palIndex] |= 0x20;
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}
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}
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_vm->_palette->processLists(palette.size(), pal1, pal2);
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int var3A = (v & 0x4000) ? 0xffff : 0xfffe;
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for (uint palIndex = 0; palIndex < palette.size(); ++palIndex) {
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bool var48 = false;
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int var4 = 0xffff;
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int v1 = pal1[palIndex];
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if (palette[v1]._flags & 8) {
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var48 = true;
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var4 = 0xFD;
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}
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if (hasUsage && palette[v1]._flags & 0x10) {
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for (uint usageIndex = 0; usageIndex < _data.size() && !var48; ++usageIndex) {
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if (_data[usageIndex] == palIndex) {
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var48 = true;
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int dataIndex = MIN(usageIndex, _data.size() - 1);
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var4 = _data[dataIndex];
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}
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}
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}
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if (flag1 && palette[palIndex]._flags & 0x10) {
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for (uint usageIndex = 0; usageIndex < _data.size() && !var48; ++usageIndex) {
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if (_data[usageIndex] == palIndex) {
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var48 = true;
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var4 = 0xF0 + usageIndex;
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// Copy data into the high end of the main palette
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RGB6 &pSrc = palette[palIndex];
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byte *pDest = &_vm->_palette->_mainPalette[var4 * 3];
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pDest[0] = pSrc.r;
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pDest[1] = pSrc.g;
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pDest[2] = pSrc.b;
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}
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}
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}
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if (!var48 && !varA) {
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int var2 = !(palette[palIndex]._flags & 0x20) && (
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((v & 0x2000) && !(palette[palIndex]._flags & 0x40)) ||
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((v & 0x1000) && (palCount > 0))
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) ? 1 : 0x7fff;
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int var36 = (palette[palIndex]._flags & 0x80) ? 0 : 2;
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for (int idx = palLow; idx < palIdx; ++idx) {
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// TODO
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}
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}
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//TODO
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}
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_vm->_palette->_rgbList[rgbIndex] = 0xffff;
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delete[] pal1;
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delete[] pal2;
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return rgbIndex;
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}
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int PaletteUsage::rgbMerge(RGB6 &palEntry) {
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return palEntry.r * 38 + palEntry.g * 76 + palEntry.b * 14;
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}
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void PaletteUsage::prioritizeFromList(int lst[3]) {
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int idx1 = _data.size() - 1;
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bool continueFlag;
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int count2;
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do {
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continueFlag = false;
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count2 = 0;
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if (idx1 > 0) {
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int numEntries = _data.size() - 1;
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int usageIndex = 0, lstIndex = 0;
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do {
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if (lst[lstIndex] < lst[lstIndex + 1]) {
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int lstVal = lst[lstIndex];
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int usageVal = _data[usageIndex];
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if (numEntries > 0) {
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Common::copy(&lst[lstIndex + 1], &lst[lstIndex + numEntries], &lst[lstIndex]);
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_data.remove_at(usageIndex);
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_data.push_back(0);
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}
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int newIdx = 0;
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if (idx1 > 0 && !continueFlag) {
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for (newIdx = 0; newIdx <= idx1; ++newIdx) {
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if (lst[newIdx] > lstVal)
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break;
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}
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}
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continueFlag = true;
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int idxDiff = _data.size() - newIdx - 1;
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if (idxDiff > 0) {
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Common::copy_backward(&lst[0], &lst[2], &lst[1]);
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_data.remove_at(2);
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_data.insert_at(0, 0);
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}
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lst[newIdx] = lstVal;
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_data[newIdx] = usageVal;
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}
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++usageIndex;
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--numEntries;
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++lstIndex;
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++count2;
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} while (count2 > idx1 && !continueFlag);
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}
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} while (continueFlag);
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}
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void PaletteUsage::transform(Common::Array<RGB6> &palette) {
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if (!empty()) {
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for (uint i = 0; i < _data.size(); ++i) {
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int palIndex = _data[i];
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_data[i] = palette[palIndex]._palIndex;
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}
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}
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}
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int PaletteUsage::getGamePalFreeIndex(int *palIndex) {
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*palIndex = -1;
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int count = 0;
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for (int i = 0; i < PALETTE_COUNT; ++i) {
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RGB4 &r = _vm->_palette->_gamePalette[i];
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if (!(r.r | r.g | r.b | r.u)) {
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++count;
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if (*palIndex < 0)
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*palIndex = i;
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}
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}
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return count;
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}
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/*------------------------------------------------------------------------*/
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void RGBList::clear() {
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Common::fill(&_data[0], &_data[32], 0);
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}
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void RGBList::reset() {
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Common::fill(&_data[2], &_data[32], 0);
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}
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int RGBList::scan() {
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for (int i = 0; i < 32; ++i) {
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if (!_data[i])
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return i;
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}
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error("List was full");
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}
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/*------------------------------------------------------------------------*/
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#define VGA_COLOR_TRANS(x) (x == 0x3f ? 255 : x << 2)
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Palette::Palette(MADSEngine *vm) : _vm(vm), _paletteUsage(vm) {
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reset();
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_v1 = 0;
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_lowRange = 0;
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_highRange = 0;
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Common::fill(&_mainPalette[0], &_mainPalette[PALETTE_SIZE], 0);
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}
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void Palette::setPalette(const byte *colors, uint start, uint num) {
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g_system->getPaletteManager()->setPalette(colors, start, num);
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reset();
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}
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void Palette::setEntry(byte palIndex, byte r, byte g, byte b) {
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_mainPalette[palIndex * 3] = r;
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_mainPalette[palIndex * 3 + 1] = g;
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_mainPalette[palIndex * 3 + 2] = b;
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setPalette((const byte *)&_mainPalette[palIndex * 3], palIndex, 1);
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}
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void Palette::grabPalette(byte *colors, uint start, uint num) {
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g_system->getPaletteManager()->grabPalette(colors, start, num);
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reset();
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}
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uint8 Palette::palIndexFromRgb(byte r, byte g, byte b, byte *paletteData) {
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byte index = 0;
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int32 minDist = 0x7fffffff;
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byte palData[PALETTE_SIZE];
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int Rdiff, Gdiff, Bdiff;
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if (paletteData == NULL) {
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g_system->getPaletteManager()->grabPalette(palData, 0, PALETTE_COUNT);
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paletteData = &palData[0];
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}
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for (int palIndex = 0; palIndex < PALETTE_COUNT; ++palIndex) {
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Rdiff = r - paletteData[palIndex * 3];
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Gdiff = g - paletteData[palIndex * 3 + 1];
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Bdiff = b - paletteData[palIndex * 3 + 2];
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if (Rdiff * Rdiff + Gdiff * Gdiff + Bdiff * Bdiff < minDist) {
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minDist = Rdiff * Rdiff + Gdiff * Gdiff + Bdiff * Bdiff;
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index = (uint8)palIndex;
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}
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}
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return (uint8)index;
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}
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void Palette::reset() {
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}
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void Palette::setGradient(byte *palette, int start, int count, int rgbValue1, int rgbValue2) {
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int rgbCtr = 0;
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int rgbCurrent = rgbValue2;
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int rgbDiff = -(rgbValue2 - rgbValue1);
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if (count > 0) {
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byte *pDest = palette + start * 3;
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int endVal = count - 1;
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int numLeft = count;
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do {
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pDest[0] = pDest[1] = pDest[2] = rgbCurrent;
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if (numLeft > 1) {
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rgbCtr += rgbDiff;
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if (rgbCtr >= endVal) {
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do {
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++rgbCurrent;
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rgbCtr += 1 - numLeft;
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} while (rgbCtr >= endVal);
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}
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}
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pDest += 3;
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} while (--numLeft > 0);
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}
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}
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void Palette::processLists(int count, byte *pal1, byte *pal2) {
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bool continueFlag;
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int endIndex = count - 1;
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do {
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continueFlag = false;
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for (int palIndex = 0; palIndex < endIndex && !continueFlag; ++palIndex) {
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byte *palP = &pal1[palIndex];
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byte *pal2P = &pal2[palIndex];
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if (palP[1] < palP[0]) {
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int v1 = palP[0];
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int v2 = pal2P[0];
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int size = count - palIndex - 1;
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if (size > 0) {
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Common::copy(palP + 1, palP + size + 1, palP);
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Common::copy(pal2P + 1, pal2P + size + 1, pal2P);
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}
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int idx;
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for (idx = 0; idx < endIndex && !continueFlag; ++idx) {
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if (pal1[idx] > v1)
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continueFlag = true;
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}
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continueFlag = true;
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int size2 = count - idx - 1;
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if (size2 > 0) {
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Common::copy(palP + idx, palP + idx + size2 + 1, palP);
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Common::copy(pal2P + idx, pal2P + idx + size2 + 1, pal2P);
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}
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pal1[idx] = v1;
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pal2[idx] = v2;
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}
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}
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} while (continueFlag);
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}
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byte *Palette::decodePalette(Common::SeekableReadStream *palStream, int *numColors) {
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*numColors = palStream->readUint16LE();
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assert(*numColors <= 252);
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byte *palData = new byte[*numColors * 3];
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Common::fill(&palData[0], &palData[*numColors * 3], 0);
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for (int i = 0; i < *numColors; ++i) {
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byte r = palStream->readByte();
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byte g = palStream->readByte();
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byte b = palStream->readByte();
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palData[i * 3] = VGA_COLOR_TRANS(r);
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palData[i * 3 + 1] = VGA_COLOR_TRANS(g);
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palData[i * 3 + 2] = VGA_COLOR_TRANS(b);
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// The next 3 bytes are unused
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palStream->skip(3);
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}
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return palData;
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}
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int Palette::loadPalette(Common::SeekableReadStream *palStream, int indexStart) {
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int colorCount;
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byte *palData = decodePalette(palStream, &colorCount);
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_vm->_palette->setPalette(palData, indexStart, colorCount);
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delete palData;
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return colorCount;
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}
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void Palette::setSystemPalette() {
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byte palData[4 * 3];
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palData[0 * 3] = palData[0 * 3 + 1] = palData[0 * 3 + 2] = 0;
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palData[1 * 3] = palData[1 * 3 + 1] = palData[1 * 3 + 2] = 0x54;
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palData[2 * 3] = palData[2 * 3 + 1] = palData[2 * 3 + 2] = 0xb4;
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palData[3 * 3] = palData[3 * 3 + 1] = palData[3 * 3 + 2] = 0xff;
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setPalette(palData, 0, 4);
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}
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void Palette::resetGamePalette(int lowRange, int highRange) {
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Common::fill((byte *)&_gamePalette[0], (byte *)&_gamePalette[PALETTE_COUNT], 0);
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initRange(_mainPalette);
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// Init low range to common RGB values
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if (lowRange) {
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_gamePalette[0].r = 1;
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_gamePalette[0].b = 0;
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Common::fill(&_gamePalette[1], &_gamePalette[lowRange - 1], _gamePalette[0]);
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}
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// Init high range to common RGB values
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if (highRange) {
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_gamePalette[255].r = 1;
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_gamePalette[255].b = 0;
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Common::fill(&_gamePalette[255 - highRange], &_gamePalette[254], _gamePalette[255]);
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}
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_rgbList.clear();
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_v1 = 0;
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_lowRange = lowRange;
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_highRange = highRange;
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}
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void Palette::initGamePalette() {
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RGB4 rgb;
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rgb.r = 1;
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if (_vm->_game->_player._spritesLoaded && _vm->_game->_player._numSprites) {
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for (int idx = 0; idx < _vm->_game->_player._numSprites; ++idx) {
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SpriteAsset *asset = _vm->_game->_scene._sprites[
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_vm->_game->_player._spritesStart + idx];
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uint32 mask = 1;
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if (asset->_field6)
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mask <<= asset->_field6;
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rgb.r = mask & 0xff;
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rgb.g = (mask >> 8) & 0xff;
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rgb.b = (mask >> 16) & 0xff;
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rgb.u = (mask >> 24) & 0xff;
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}
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}
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for (int idx = 0; idx < PALETTE_COUNT; ++idx) {
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_gamePalette[idx].r &= rgb.r;
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_gamePalette[idx].g &= rgb.g;
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_gamePalette[idx].b &= rgb.b;
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_gamePalette[idx].u &= rgb.u;
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}
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_v1 = 0;
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_rgbList.reset();
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}
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void Palette::initRange(byte *palette) {
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int var6 = 0;
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int vdx = 0;
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int vbx = 0;
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do {
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int vdi = (vdx == 1) ? 0 : 0x2A;
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int var8 = 0;
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int varE = vbx;
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int var10 = vdx;
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do {
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vdx = 0;
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do {
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int vcx = 0;
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int var4 = vdx;
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do {
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int var2 = var6 + vcx;
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byte *destP = &palette[var2 * 3];
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destP[0] = (var8) ? vdi & 0xFF : vbx & 0XFF;
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destP[1] = (var4) ? vdi & 0xFF : vbx & 0XFF;
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destP[2] = (vcx) ? vdi & 0xFF : vbx & 0XFF;
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} while (++vcx < 2);
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var6 += 2;
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vdx = var4;
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} while (++vdx < 2);
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} while (++var8 < 2);
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vdx = var10 + 1;
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vbx = varE + 21;
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} while (vbx < 42);
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palette[19] = 21;
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}
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void Palette::setLowRange() {
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_mainPalette[0] = _mainPalette[1] = _mainPalette[2] = 0;
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_mainPalette[3] = _mainPalette[4] = _mainPalette[5] = 0x15;
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_mainPalette[6] = _mainPalette[7] = _mainPalette[8] = 0x2A;
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_mainPalette[9] = _mainPalette[10] = _mainPalette[11] = 0x3F;
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_vm->_palette->setPalette(_mainPalette, 0, 4);
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}
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void Palette::fadeOut(byte palette[PALETTE_SIZE], int v1, int v2, int v3, int v4, int v5, int v6) {
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}
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} // End of namespace MADS
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