mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-24 02:36:27 +00:00
616 lines
16 KiB
C++
616 lines
16 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 = VGA_COLOR_TRANS(f->readByte());
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g = VGA_COLOR_TRANS(f->readByte());
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b = VGA_COLOR_TRANS(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, uint flags) {
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byte *pal1 = nullptr, *pal2 = nullptr;
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int palLow;
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int palHigh = (flags & 0x800) ? 0x100 : 0xFC;
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int palIdx;
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if (flags & 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 = flags & 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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pal1 = new byte[PALETTE_COUNT];
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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 = (flags & 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 = pal2[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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((flags & 0x2000) && !(palette[palIndex]._flags & 0x40)) ||
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((flags & 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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uint32 v = _vm->_palette->_palFlags[idx];
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if ((v & var3A) && !(v & var36)) {
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int var10;
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if (var2 > 1) {
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var10 = rgbFactor(&_vm->_palette->_mainPalette[idx * 3], palette[palIndex]);
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}
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else if (_vm->_palette->_mainPalette[idx * 3] != palette[palIndex].r ||
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_vm->_palette->_mainPalette[idx * 3 + 1] != palette[palIndex].g ||
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_vm->_palette->_mainPalette[idx * 3 + 2] != palette[palIndex].b) {
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var10 = 1;
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} else {
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var10 = 0;
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}
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if (var2 > var10) {
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var48 = true;
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var4 = idx;
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var2 = var10;
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}
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}
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}
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}
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if (!var48 && (!(flags & 0x1000) || (!(palette[palIndex]._flags & 0x60) && !(flags & 0x2000)))) {
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for (int idx = freeIndex; idx < palIdx && !var48; ++idx) {
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if (!_vm->_palette->_palFlags[idx]) {
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--palCount;
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++freeIndex;
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var48 = true;
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var4 = idx;
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RGB6 &pSrc = palette[palIndex];
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byte *pDest = &_vm->_palette->_mainPalette[idx * 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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assert(var48);
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int var52 = (varA && palette[palIndex]._u2) ? 2 : 0;
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_vm->_palette->_palFlags[var4] |= var52 | rgbMask;
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palette[palIndex]._palIndex = var4;
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}
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_vm->_palette->_rgbList[rgbIndex] = -1;
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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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void PaletteUsage::updateUsage(Common::Array<int> &usageList, int sceneUsageIndex) {
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uint32 mask1 = 0xFFFFFFFF;
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uint32 mask2 = 0;
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for (uint idx = 0; idx < usageList.size(); ++idx) {
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uint32 bitMask = 1 << usageList[idx];
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mask1 ^= bitMask;
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mask2 |= bitMask;
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_vm->_palette->_rgbList[usageList[idx]] = 0;
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}
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uint32 mask3 = 1 << sceneUsageIndex;
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for (uint idx = 0; idx < PALETTE_COUNT; ++idx) {
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uint32 mask = mask2 & _vm->_palette->_palFlags[idx];
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if (mask) {
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_vm->_palette->_palFlags[idx] = (_vm->_palette->_palFlags[idx] &
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mask1) | mask3;
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}
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}
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_vm->_palette->_rgbList[sceneUsageIndex] = -1;
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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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if (!_vm->_palette->_palFlags[i]) {
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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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int PaletteUsage::rgbFactor(byte *palEntry, RGB6 &pal6) {
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int total = 0;
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total += (palEntry[0] - pal6.r) * (palEntry[0] - pal6.r);
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total += (palEntry[1] - pal6.g) * (palEntry[1] - pal6.g);
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total += (palEntry[2] - pal6.b) * (palEntry[2] - pal6.b);
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return total;
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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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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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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 *)&_palFlags[0], (byte *)&_palFlags[PALETTE_COUNT], 0);
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initVGAPalette(_mainPalette);
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// Init low range to common RGB values
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if (lowRange) {
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Common::fill(&_palFlags[0], &_palFlags[lowRange], 1);
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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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_palFlags[255] = 1;
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Common::fill(&_palFlags[255 - highRange], &_palFlags[254], _palFlags[255]);
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|
}
|
|
|
|
_rgbList.clear();
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|
_rgbList[0] = _rgbList[1] = -1;
|
|
|
|
_v1 = 0;
|
|
_lowRange = lowRange;
|
|
_highRange = highRange;
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|
}
|
|
|
|
void Palette::initPalette() {
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|
RGB4 rgb;
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|
uint32 palMask = 1;
|
|
|
|
if (_vm->_game->_player._spritesLoaded && _vm->_game->_player._numSprites) {
|
|
|
|
for (int idx = 0; idx < _vm->_game->_player._numSprites; ++idx) {
|
|
SpriteAsset *asset = _vm->_game->_scene._sprites[
|
|
_vm->_game->_player._spritesStart + idx];
|
|
|
|
uint32 mask = 1;
|
|
if (asset->_usageIndex)
|
|
mask <<= asset->_usageIndex;
|
|
|
|
palMask = mask;
|
|
}
|
|
}
|
|
|
|
for (int idx = 0; idx < PALETTE_COUNT; ++idx)
|
|
_palFlags[idx] = palMask;
|
|
|
|
_v1 = 0;
|
|
_rgbList.reset();
|
|
}
|
|
|
|
const uint32 DEFAULT_VGA_PALETTE[PALETTE_COUNT] = {
|
|
0x000000, 0x0000a8, 0x00a800, 0x00a8a8, 0xa80000, 0xa800a8, 0xa85400, 0xa8a8a8,
|
|
0x545454, 0x5454fc, 0x54fc54, 0x54fcfc, 0xfc5454, 0xfc54fc, 0xfcfc54, 0xfcfcfc,
|
|
0x000000, 0x141414, 0x202020, 0x2c2c2c, 0x383838, 0x444444, 0x505050, 0x606060,
|
|
0x707070, 0x808080, 0x909090, 0xa0a0a0, 0xb4b4b4, 0xc8c8c8, 0xe0e0e0, 0xfcfcfc,
|
|
0x0000fc, 0x4000fc, 0x7c00fc, 0xbc00fc, 0xfc00fc, 0xfc00bc, 0xfc007c, 0xfc0040,
|
|
0xfc0000, 0xfc4000, 0xfc7c00, 0xfcbc00, 0xfcfc00, 0xbcfc00, 0x7cfc00, 0x40fc00,
|
|
0x00fc00, 0x00fc40, 0x00fc7c, 0x00fcbc, 0x00fcfc, 0x00bcfc, 0x007cfc, 0x0040fc,
|
|
0x7c7cfc, 0x9c7cfc, 0xbc7cfc, 0xdc7cfc, 0xfc7cfc, 0xfc7cdc, 0xfc7cbc, 0xfc7c9c,
|
|
0xfc7c7c, 0xfc9c7c, 0xfcbc7c, 0xfcdc7c, 0xfcfc7c, 0xdcfc7c, 0xbcfc7c, 0x9cfc7c,
|
|
0x7cfc7c, 0x7cfc9c, 0x7cfcbc, 0x7cfcdc, 0x7cfcfc, 0x7cdcfc, 0x7cbcfc, 0x7c9cfc,
|
|
0xb4b4fc, 0xc4b4fc, 0xd8b4fc, 0xe8b4fc, 0xfcb4fc, 0xfcb4e8, 0xfcb4d8, 0xfcb4c4,
|
|
0xfcb4b4, 0xfcc4b4, 0xfcd8b4, 0xfce8b4, 0xfcfcb4, 0xe8fcb4, 0xd8fcb4, 0xc4fcb4,
|
|
0xb4fcb4, 0xb4fcc4, 0xb4fcd8, 0xb4fce8, 0xb4fcfc, 0xb4e8fc, 0xb4d8fc, 0xb4c4fc,
|
|
0x000070, 0x1c0070, 0x380070, 0x540070, 0x700070, 0x700054, 0x700038, 0x70001c,
|
|
0x700000, 0x701c00, 0x703800, 0x705400, 0x707000, 0x547000, 0x387000, 0x1c7000,
|
|
0x007000, 0x00701c, 0x007038, 0x007054, 0x007070, 0x005470, 0x003870, 0x001c70,
|
|
0x383870, 0x443870, 0x543870, 0x603870, 0x703870, 0x703860, 0x703854, 0x703844,
|
|
0x703838, 0x704438, 0x705438, 0x706038, 0x707038, 0x607038, 0x547038, 0x447038,
|
|
0x387038, 0x387044, 0x387054, 0x387060, 0x387070, 0x386070, 0x385470, 0x384470,
|
|
0x505070, 0x585070, 0x605070, 0x685070, 0x705070, 0x705068, 0x705060, 0x705058,
|
|
0x705050, 0x705850, 0x706050, 0x706850, 0x707050, 0x687050, 0x607050, 0x587050,
|
|
0x507050, 0x507058, 0x507060, 0x507068, 0x507070, 0x506870, 0x506070, 0x505870,
|
|
0x000040, 0x100040, 0x200040, 0x300040, 0x400040, 0x400030, 0x400020, 0x400010,
|
|
0x400000, 0x401000, 0x402000, 0x403000, 0x404000, 0x304000, 0x204000, 0x104000,
|
|
0x004000, 0x004010, 0x004020, 0x004030, 0x004040, 0x003040, 0x002040, 0x001040,
|
|
0x202040, 0x282040, 0x302040, 0x382040, 0x402040, 0x402038, 0x402030, 0x402028,
|
|
0x402020, 0x402820, 0x403020, 0x403820, 0x404020, 0x384020, 0x304020, 0x284020,
|
|
0x204020, 0x204028, 0x204030, 0x204038, 0x204040, 0x203840, 0x203040, 0x202840,
|
|
0x2c2c40, 0x302c40, 0x342c40, 0x3c2c40, 0x402c40, 0x402c3c, 0x402c34, 0x402c30,
|
|
0x402c2c, 0x40302c, 0x40342c, 0x403c2c, 0x40402c, 0x3c402c, 0x34402c, 0x30402c,
|
|
0x2c402c, 0x2c4030, 0x2c4034, 0x2c403c, 0x2c4040, 0x2c3c40, 0x2c3440, 0x2c3040,
|
|
0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000
|
|
};
|
|
|
|
void Palette::initVGAPalette(byte *palette) {
|
|
byte *destP = palette;
|
|
for (int palIndex = 0; palIndex < PALETTE_COUNT; ++palIndex) {
|
|
for (int byteCtr = 2; byteCtr >= 0; --byteCtr)
|
|
*destP++ = ((DEFAULT_VGA_PALETTE[palIndex] >> (8 * byteCtr)) & 0xff) >> 2;
|
|
}
|
|
}
|
|
|
|
void Palette::setLowRange() {
|
|
_mainPalette[0] = _mainPalette[1] = _mainPalette[2] = 0;
|
|
_mainPalette[3] = _mainPalette[4] = _mainPalette[5] = 0x15;
|
|
_mainPalette[6] = _mainPalette[7] = _mainPalette[8] = 0x2A;
|
|
_mainPalette[9] = _mainPalette[10] = _mainPalette[11] = 0x3F;
|
|
_vm->_palette->setPalette(_mainPalette, 0, 4);
|
|
}
|
|
|
|
void Palette::fadeOut(byte palette[PALETTE_SIZE], int v1, int v2, int v3, int v4, int v5, int v6) {
|
|
|
|
}
|
|
|
|
|
|
} // End of namespace MADS
|