mirror of
https://github.com/libretro/scummvm.git
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113 lines
2.8 KiB
C++
113 lines
2.8 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 "dreamweb/dreamweb.h"
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namespace DreamGen {
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uint8 *DreamGenContext::mainPalette() {
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return segRef(data.word(kBuffers)).ptr(kMaingamepal, 256*3);
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}
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uint8 *DreamGenContext::startPalette() {
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return segRef(data.word(kBuffers)).ptr(kStartpal, 256*3);
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}
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uint8 *DreamGenContext::endPalette() {
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return segRef(data.word(kBuffers)).ptr(kEndpal, 256*3);
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}
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void DreamGenContext::clearstartpal() {
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memset(startPalette(), 0, 256*3);
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}
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void DreamGenContext::clearendpal() {
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memset(endPalette(), 0, 256*3);
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}
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void DreamGenContext::paltostartpal() {
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memcpy(startPalette(), mainPalette(), 256*3);
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}
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void DreamGenContext::endpaltostart() {
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memcpy(startPalette(), endPalette(), 256*3);
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}
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void DreamGenContext::startpaltoend() {
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memcpy(endPalette(), startPalette(), 256*3);
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}
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void DreamGenContext::paltoendpal() {
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memcpy(endPalette(), mainPalette(), 256*3);
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}
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void DreamGenContext::fadecalculation() {
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if (data.byte(kFadecount) == 0) {
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data.byte(kFadedirection) = 0;
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return;
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}
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uint8 *startPal = startPalette();
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const uint8 *endPal = endPalette();
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for (size_t i = 0; i < 256 * 3; ++i, ++si, ++di) {
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uint8 s = startPal[i];
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uint8 e = endPal[i];
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if (s == e)
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continue;
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else if (s > e)
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--startPal[i];
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else {
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if (data.byte(kFadecount) <= e)
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++startPal[i];
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}
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}
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--data.byte(kFadecount);
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}
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void DreamGenContext::fadeupyellows() {
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paltoendpal();
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memset(endPalette() + 231*3, 0, 8*3);
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memset(endPalette() + 246*3, 0, 1*3);
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data.byte(kFadedirection) = 1;
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data.byte(kFadecount) = 63;
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data.byte(kColourpos) = 0;
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data.byte(kNumtofade) = 128;
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hangon(128);
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}
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void DreamGenContext::fadeupmonfirst() {
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paltostartpal();
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paltoendpal();
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memset(startPalette() + 231*3, 0, 8*3);
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memset(startPalette() + 246*3, 0, 1*3);
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data.byte(kFadedirection) = 1;
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data.byte(kFadecount) = 63;
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data.byte(kColourpos) = 0;
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data.byte(kNumtofade) = 128;
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hangon(64);
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playchannel1(26);
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hangon(64);
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}
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} /*namespace dreamgen */
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