108 lines
3.1 KiB
C++
108 lines
3.1 KiB
C++
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/* 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 "sherlock/screen.h"
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#include "sherlock/sherlock.h"
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#include "common/system.h"
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#include "graphics/palette.h"
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namespace Sherlock {
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Screen::Screen(SherlockEngine *vm) : Surface(SHERLOCK_SCREEN_WIDTH, SHERLOCK_SCREEN_HEIGHT), _vm(vm),
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_backBuffer1(SHERLOCK_SCREEN_WIDTH, SHERLOCK_SCREEN_HEIGHT),
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_backBuffer2(SHERLOCK_SCREEN_WIDTH, SHERLOCK_SCREEN_HEIGHT) {
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setFont(1);
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}
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void Screen::setFont(int fontNumber) {
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_fontNumber = fontNumber;
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Common::String fname = Common::String::format("FONT%d.VGS", fontNumber);
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Common::SeekableReadStream *stream = _vm->_res->load(fname);
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debug("TODO: Loading font %s, size - %d", fname.c_str(), stream->size());
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delete stream;
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}
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void Screen::update() {
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g_system->copyRectToScreen(getPixels(), this->w, 0, 0, this->w, this->h);
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g_system->updateScreen();
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}
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void Screen::getPalette(byte palette[PALETTE_SIZE]) {
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g_system->getPaletteManager()->grabPalette(palette, 0, PALETTE_COUNT);
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}
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void Screen::setPalette(const byte palette[PALETTE_SIZE]) {
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g_system->getPaletteManager()->setPalette(palette, 0, PALETTE_COUNT);
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}
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int Screen::equalizePalette(const byte palette[PALETTE_SIZE]) {
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int total = 0;
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byte tempPalette[PALETTE_SIZE];
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getPalette(tempPalette);
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// For any palette component that doesn't already match the given destination
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// palette, change by 1 towards the reference palette component
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for (int idx = 0; idx < PALETTE_SIZE; ++idx) {
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if (tempPalette[idx] > palette[idx])
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{
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--tempPalette[idx];
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++total;
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} else if (tempPalette[idx] < palette[idx]) {
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++tempPalette[idx];
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++total;
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}
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}
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if (total > 0)
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// Palette changed, so reload it
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setPalette(tempPalette);
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return total;
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}
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void Screen::fadeToBlack() {
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const int FADE_AMOUNT = 2;
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bool repeatFlag;
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byte *srcP;
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int count;
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byte tempPalette[PALETTE_SIZE];
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getPalette(tempPalette);
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do {
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repeatFlag = false;
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for (srcP = &tempPalette[0], count = 0; count < PALETTE_SIZE; ++count, ++srcP) {
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int v = *srcP;
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if (v) {
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repeatFlag = true;
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*srcP = MAX(*srcP - FADE_AMOUNT, 0);
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}
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}
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setPalette(tempPalette);
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_vm->_events->pollEventsAndWait();
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} while (repeatFlag && !_vm->shouldQuit());
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}
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} // End of namespace Sherlock
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