mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-22 09:49:11 +00:00
317 lines
8.3 KiB
C++
317 lines
8.3 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001 Ludvig Strigeus
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* Copyright (C) 2001-2006 The ScummVM project
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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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* $Header$
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*
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*/
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#include "common/stdafx.h"
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#include "common/system.h"
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#include "scumm/scumm.h"
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#include "scumm/intern.h"
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#include "scumm/resource.h"
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#include "scumm/util.h"
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namespace Scumm {
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void ScummEngine_v70he::remapHEPalette(const uint8 *src, uint8 *dst) {
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int r, g, b, sum, bestitem, bestsum;
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int ar, ag, ab;
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uint8 *palPtr;
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src += 30;
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if (_heversion >= 99) {
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palPtr = _hePalettes + 1024 + 30;
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} else {
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palPtr = _currentPalette + 30;
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}
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for (int j = 10; j < 246; j++) {
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bestitem = 0xFFFF;
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bestsum = 0xFFFF;
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r = *src++;
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g = *src++;
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b = *src++;
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uint8 *curPal = palPtr;
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for (int k = 10; k < 246; k++) {
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ar = r - *curPal++;
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ag = g - *curPal++;
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ab = b - *curPal++;
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sum = (ar * ar) + (ag * ag) + (ab * ab);
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if (bestitem == 0xFFFF || sum <= bestsum) {
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bestitem = k;
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bestsum = sum;
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}
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}
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dst[j] = bestitem;
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}
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}
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uint8 *ScummEngine_v90he::getHEPaletteIndex(int palSlot) {
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if (palSlot) {
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assert(palSlot >= 1 && palSlot <= _numPalettes);
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return _hePalettes + palSlot * 1024;
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} else {
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return _hePalettes + 1024;
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}
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}
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int ScummEngine_v90he::getHEPaletteSimilarColor(int palSlot, int red, int green, int start, int end) {
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checkRange(_numPalettes, 1, palSlot, "Invalid palette %d");
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checkRange(255, 0, start, "Invalid palette slot %d");
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checkRange(255, 0, end, "Invalid palette slot %d");
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uint8 *pal = _hePalettes + palSlot * 1024 + start * 3;
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int bestsum = 0xFFFFFFFF;
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int bestitem = start;
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for (int i = start; i <= end; i++) {
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int dr = red - pal[0];
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int dg = green - pal[1];
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int sum = dr * dr + dg * dg * 2;
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if (sum == 0) {
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return i;
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}
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if (sum < bestsum) {
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bestsum = sum;
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bestitem = i;
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}
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pal += 3;
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}
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return bestitem;
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}
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int ScummEngine_v90he::getHEPaletteColorComponent(int palSlot, int color, int component) {
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checkRange(_numPalettes, 1, palSlot, "Invalid palette %d");
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checkRange(255, 0, color, "Invalid palette slot %d");
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return _hePalettes[palSlot * 1024 + color * 3 + component % 3];
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}
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int ScummEngine_v90he::getHEPaletteColor(int palSlot, int color) {
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checkRange(_numPalettes, 1, palSlot, "Invalid palette %d");
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checkRange(255, 0, color, "Invalid palette slot %d");
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return _hePalettes[palSlot * 1024 + 768 + color];
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}
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void ScummEngine_v90he::setHEPaletteColor(int palSlot, uint8 color, uint8 r, uint8 g, uint8 b) {
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debug(7, "setHEPaletteColor(%d, %d, %d, %d, %d)", palSlot, color, r, g, b);
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checkRange(_numPalettes, 1, palSlot, "Invalid palette %d");
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uint8 *p = _hePalettes + palSlot * 1024 + color * 3;
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*(p + 0) = r;
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*(p + 1) = g;
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*(p + 2) = b;
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_hePalettes[palSlot * 1024 + 768 + color] = color;
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}
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void ScummEngine_v90he::setHEPaletteFromPtr(int palSlot, const uint8 *palData) {
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checkRange(_numPalettes, 1, palSlot, "Invalid palette %d");
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uint8 *pc = _hePalettes + palSlot * 1024;
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uint8 *pi = pc + 768;
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for (int i = 0; i < 256; ++i) {
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*pc++ = *palData++;
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*pc++ = *palData++;
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*pc++ = *palData++;
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*pi++ = i;
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}
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}
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void ScummEngine_v90he::setHEPaletteFromCostume(int palSlot, int resId) {
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debug(7, "setHEPaletteFromCostume(%d, %d)", palSlot, resId);
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checkRange(_numPalettes, 1, palSlot, "Invalid palette %d");
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const uint8 *data = getResourceAddress(rtCostume, resId);
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assert(data);
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const uint8 *rgbs = findResourceData(MKID('RGBS'), data);
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assert(rgbs);
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setHEPaletteFromPtr(palSlot, rgbs);
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}
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void ScummEngine_v90he::setHEPaletteFromImage(int palSlot, int resId, int state) {
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debug(7, "setHEPaletteFromImage(%d, %d, %d)", palSlot, resId, state);
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checkRange(_numPalettes, 1, palSlot, "Invalid palette %d");
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uint8 *data = getResourceAddress(rtImage, resId);
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assert(data);
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const uint8 *rgbs = findWrappedBlock(MKID('RGBS'), data, state, 0);
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assert(rgbs);
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setHEPaletteFromPtr(palSlot, rgbs);
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}
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void ScummEngine_v90he::setHEPaletteFromRoom(int palSlot, int resId, int state) {
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debug(7, "setHEPaletteFromRoom(%d, %d, %d)", palSlot, resId, state);
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checkRange(_numPalettes, 1, palSlot, "Invalid palette %d");
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const uint8 *data = getResourceAddress(rtRoom, resId);
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assert(data);
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const uint8 *pals = findResourceData(MKID('PALS'), data);
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assert(pals);
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const uint8 *rgbs = findPalInPals(pals, state);
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assert(rgbs);
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setHEPaletteFromPtr(palSlot, rgbs);
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}
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void ScummEngine_v90he::restoreHEPalette(int palSlot) {
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debug(7, "restoreHEPalette(%d)", palSlot);
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checkRange(_numPalettes, 1, palSlot, "Invalid palette %d");
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if (palSlot != 1) {
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memcpy(_hePalettes + palSlot * 1024, _hePalettes + 1024, 1024);
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}
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}
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void ScummEngine_v90he::copyHEPalette(int dstPalSlot, int srcPalSlot) {
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debug(7, "copyHEPalette(%d, %d)", dstPalSlot, srcPalSlot);
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assert(dstPalSlot >= 1 && dstPalSlot <= _numPalettes);
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assert(srcPalSlot >= 1 && srcPalSlot <= _numPalettes);
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if (dstPalSlot != srcPalSlot) {
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memcpy(_hePalettes + dstPalSlot * 1024, _hePalettes + srcPalSlot * 1024, 1024);
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}
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}
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void ScummEngine_v90he::copyHEPaletteColor(int palSlot, uint8 dstColor, uint8 srcColor) {
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debug(7, "copyHEPaletteColor(%d, %d, %d)", palSlot, dstColor, srcColor);
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checkRange(_numPalettes, 1, palSlot, "Invalid palette %d");
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uint8 *dstPal = _hePalettes + palSlot * 1024 + dstColor * 3;
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uint8 *srcPal = _hePalettes + 1024 + srcColor * 3;
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memcpy(dstPal, srcPal, 3);
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_hePalettes[palSlot * 1024 + 768 + dstColor] = srcColor;
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}
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void ScummEngine_v99he::setPaletteFromPtr(const byte *ptr, int numcolor) {
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int i;
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byte *dest, r, g, b;
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if (numcolor < 0) {
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numcolor = getResourceDataSize(ptr) / 3;
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}
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checkRange(256, 0, numcolor, "Too many colors (%d) in Palette");
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dest = _hePalettes + 1024;
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for (i = 0; i < numcolor; i++) {
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r = *ptr++;
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g = *ptr++;
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b = *ptr++;
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if (i == 15 || r < 252 || g < 252 || b < 252) {
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*dest++ = r;
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*dest++ = g;
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*dest++ = b;
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_hePalettes[1792 + i] = i;
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} else {
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dest += 3;
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}
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}
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memcpy(_hePalettes, _hePalettes + 1024, 768);
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for (i = 0; i < 10; ++i)
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_hePalettes[1792 + i] = i;
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for (i = 246; i < 256; ++i)
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_hePalettes[1792 + i] = i;
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setDirtyColors(0, numcolor - 1);
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}
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void ScummEngine_v99he::darkenPalette(int redScale, int greenScale, int blueScale, int startColor, int endColor) {
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uint8 *src, *dst;
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int color, j;
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src = _hePalettes + startColor * 3;
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dst = _hePalettes + 1024 + startColor * 3;
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for (j = startColor; j <= endColor; j++) {
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color = *src++;
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color = color * redScale / 0xFF;
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if (color > 255)
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color = 255;
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*dst++ = color;
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color = *src++;
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color = color * greenScale / 0xFF;
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if (color > 255)
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color = 255;
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*dst++ = color;
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color = *src++;
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color = color * blueScale / 0xFF;
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if (color > 255)
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color = 255;
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*dst++ = color;
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_hePalettes[1792 + j] = j;
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setDirtyColors(j, endColor);
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}
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}
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void ScummEngine_v99he::copyPalColor(int dst, int src) {
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byte *dp, *sp;
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if ((uint) dst >= 256 || (uint) src >= 256)
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error("copyPalColor: invalid values, %d, %d", dst, src);
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dp = &_hePalettes[1024 + dst * 3];
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sp = &_hePalettes[1024 + src * 3];
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dp[0] = sp[0];
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dp[1] = sp[1];
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dp[2] = sp[2];
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_hePalettes[1792 + dst] = dst;
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setDirtyColors(dst, dst);
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}
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void ScummEngine_v99he::setPalColor(int idx, int r, int g, int b) {
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_hePalettes[1024 + idx * 3 + 0] = r;
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_hePalettes[1024 + idx * 3 + 1] = g;
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_hePalettes[1024 + idx * 3 + 2] = b;
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_hePalettes[1792 + idx] = idx;
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setDirtyColors(idx, idx);
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}
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void ScummEngine_v99he::updatePalette() {
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if (_palDirtyMax == -1)
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return;
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int num = _palDirtyMax - _palDirtyMin + 1;
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int i;
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byte palette_colors[1024];
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byte *p = palette_colors;
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for (i = _palDirtyMin; i <= _palDirtyMax; i++) {
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byte *data = _hePalettes + 1024 + i * 3;
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*p++ = data[0];
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*p++ = data[1];
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*p++ = data[2];
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*p++ = 0;
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}
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_system->setPalette(palette_colors, _palDirtyMin, num);
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_palDirtyMax = -1;
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_palDirtyMin = 256;
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}
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} // End of namespace Scumm
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