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This commit is contained in:
455
engines/neverhood/screen.cpp
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455
engines/neverhood/screen.cpp
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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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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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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*
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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, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "graphics/paletteman.h"
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#include "video/smk_decoder.h"
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#include "neverhood/screen.h"
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namespace Neverhood {
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Screen::Screen(NeverhoodEngine *vm)
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: _vm(vm), _paletteData(nullptr), _paletteChanged(false), _smackerDecoder(nullptr),
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_yOffset(0), _fullRefresh(false), _frameDelay(0), _savedSmackerDecoder(nullptr),
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_savedFrameDelay(0), _savedYOffset(0) {
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_ticks = _vm->_system->getMillis();
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_backScreen = new Graphics::Surface();
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_backScreen->create(640, 480, Graphics::PixelFormat::createFormatCLUT8());
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_renderQueue = new RenderQueue();
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_prevRenderQueue = new RenderQueue();
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_microTiles = new MicroTileArray(640, 480);
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}
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Screen::~Screen() {
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delete _microTiles;
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delete _renderQueue;
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delete _prevRenderQueue;
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_backScreen->free();
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delete _backScreen;
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}
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void Screen::update() {
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_ticks = _vm->_system->getMillis();
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updatePalette();
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if (_fullRefresh) {
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// NOTE When playing a fullscreen/doubled Smacker video usually a full screen refresh is needed
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_vm->_system->copyRectToScreen((const byte*)_backScreen->getPixels(), _backScreen->pitch, 0, 0, 640, 480);
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_fullRefresh = false;
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return;
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}
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_microTiles->clear();
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for (RenderQueue::iterator it = _renderQueue->begin(); it != _renderQueue->end(); ++it) {
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RenderItem &renderItem = (*it);
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renderItem._refresh = true;
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for (RenderQueue::iterator jt = _prevRenderQueue->begin(); jt != _prevRenderQueue->end(); ++jt) {
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RenderItem &prevRenderItem = (*jt);
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if (prevRenderItem == renderItem) {
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prevRenderItem._refresh = false;
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renderItem._refresh = false;
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}
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}
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}
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for (RenderQueue::iterator jt = _prevRenderQueue->begin(); jt != _prevRenderQueue->end(); ++jt) {
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RenderItem &prevRenderItem = (*jt);
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if (prevRenderItem._refresh)
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_microTiles->addRect(Common::Rect(prevRenderItem._destX, prevRenderItem._destY, prevRenderItem._destX + prevRenderItem._width, prevRenderItem._destY + prevRenderItem._height));
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}
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for (RenderQueue::iterator it = _renderQueue->begin(); it != _renderQueue->end(); ++it) {
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RenderItem &renderItem = (*it);
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if (renderItem._refresh)
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_microTiles->addRect(Common::Rect(renderItem._destX, renderItem._destY, renderItem._destX + renderItem._width, renderItem._destY + renderItem._height));
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renderItem._refresh = true;
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}
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RectangleList *updateRects = _microTiles->getRectangles();
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for (RenderQueue::iterator it = _renderQueue->begin(); it != _renderQueue->end(); ++it) {
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RenderItem &renderItem = (*it);
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for (RectangleList::iterator ri = updateRects->begin(); ri != updateRects->end(); ++ri)
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blitRenderItem(renderItem, *ri);
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}
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SWAP(_renderQueue, _prevRenderQueue);
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_renderQueue->clear();
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for (RectangleList::iterator ri = updateRects->begin(); ri != updateRects->end(); ++ri) {
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Common::Rect &r = *ri;
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_vm->_system->copyRectToScreen((const byte*)_backScreen->getBasePtr(r.left, r.top), _backScreen->pitch, r.left, r.top, r.width(), r.height());
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}
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delete updateRects;
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}
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uint32 Screen::getNextFrameTime() {
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int32 frameDelay = _frameDelay;
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if (_smackerDecoder && _smackerDecoder->isVideoLoaded() && !_smackerDecoder->endOfVideo())
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frameDelay = _smackerDecoder->getTimeToNextFrame();
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int32 waitTicks = frameDelay - (_vm->_system->getMillis() - _ticks);
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return _vm->_system->getMillis() + waitTicks;
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}
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void Screen::saveParams() {
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_savedSmackerDecoder = _smackerDecoder;
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_savedFrameDelay = _frameDelay;
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_savedYOffset = _yOffset;
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}
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void Screen::restoreParams() {
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_smackerDecoder = _savedSmackerDecoder;
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_frameDelay = _savedFrameDelay;
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_yOffset = _savedYOffset;
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}
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void Screen::setFps(int fps) {
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_frameDelay = 1000 / fps;
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}
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int Screen::getFps() {
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return 1000 / _frameDelay;
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}
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void Screen::setYOffset(int16 yOffset) {
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_yOffset = yOffset;
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}
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int16 Screen::getYOffset() {
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return _yOffset;
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}
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void Screen::setPaletteData(byte *paletteData) {
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_paletteChanged = true;
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_paletteData = paletteData;
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}
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void Screen::unsetPaletteData(byte *paletteData) {
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if (_paletteData == paletteData) {
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_paletteChanged = false;
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_paletteData = nullptr;
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}
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}
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void Screen::testPalette(byte *paletteData) {
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if (_paletteData == paletteData)
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_paletteChanged = true;
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}
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void Screen::updatePalette() {
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if (_paletteChanged && _paletteData) {
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byte *tempPalette = new byte[768];
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for (int i = 0; i < 256; i++) {
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tempPalette[i * 3 + 0] = _paletteData[i * 4 + 0];
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tempPalette[i * 3 + 1] = _paletteData[i * 4 + 1];
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tempPalette[i * 3 + 2] = _paletteData[i * 4 + 2];
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}
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_vm->_system->getPaletteManager()->setPalette(tempPalette, 0, 256);
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delete[] tempPalette;
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_paletteChanged = false;
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}
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}
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void Screen::clear() {
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memset(_backScreen->getPixels(), 0, _backScreen->pitch * _backScreen->h);
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_fullRefresh = true;
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clearRenderQueue();
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}
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void Screen::clearRenderQueue() {
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_renderQueue->clear();
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_prevRenderQueue->clear();
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}
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void Screen::drawSurface2(const Graphics::Surface *surface, NDrawRect &drawRect, NRect &clipRect, bool transparent, byte version,
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const Graphics::Surface *shadowSurface, byte alphaColor) {
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int16 destX, destY;
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NRect ddRect;
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if (drawRect.x + drawRect.width >= clipRect.x2)
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ddRect.x2 = clipRect.x2 - drawRect.x;
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else
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ddRect.x2 = drawRect.width;
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if (drawRect.x < clipRect.x1) {
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destX = clipRect.x1;
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ddRect.x1 = clipRect.x1 - drawRect.x;
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} else {
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destX = drawRect.x;
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ddRect.x1 = 0;
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}
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if (drawRect.y + drawRect.height >= clipRect.y2)
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ddRect.y2 = clipRect.y2 - drawRect.y;
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else
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ddRect.y2 = drawRect.height;
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if (drawRect.y < clipRect.y1) {
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destY = clipRect.y1;
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ddRect.y1 = clipRect.y1 - drawRect.y;
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} else {
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destY = drawRect.y;
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ddRect.y1 = 0;
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}
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queueBlit(surface, destX, destY, ddRect, transparent, version, shadowSurface, alphaColor);
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}
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void Screen::drawSurface3(const Graphics::Surface *surface, int16 x, int16 y, NDrawRect &drawRect, NRect &clipRect, bool transparent, byte version) {
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int16 destX, destY;
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NRect ddRect;
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if (x + drawRect.width >= clipRect.x2)
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ddRect.x2 = clipRect.x2 - drawRect.x - x;
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else
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ddRect.x2 = drawRect.x + drawRect.width;
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if (x < clipRect.x1) {
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destX = clipRect.x1;
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ddRect.x1 = clipRect.x1 + drawRect.x - x;
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} else {
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destX = x;
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ddRect.x1 = drawRect.x;
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}
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if (y + drawRect.height >= clipRect.y2)
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ddRect.y2 = clipRect.y2 + drawRect.y - y;
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else
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ddRect.y2 = drawRect.y + drawRect.height;
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if (y < clipRect.y1) {
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destY = clipRect.y1;
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ddRect.y1 = clipRect.y1 + drawRect.y - y;
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} else {
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destY = y;
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ddRect.y1 = drawRect.y;
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}
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queueBlit(surface, destX, destY, ddRect, transparent, version);
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}
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void Screen::drawDoubleSurface2(const Graphics::Surface *surface, NDrawRect &drawRect) {
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const byte *source = (const byte*)surface->getPixels();
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byte *dest = (byte*)_backScreen->getBasePtr(drawRect.x, drawRect.y);
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for (int16 yc = 0; yc < surface->h; yc++) {
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byte *row = dest;
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for (int16 xc = 0; xc < surface->w; xc++) {
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*row++ = *source;
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*row++ = *source++;
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}
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memcpy(dest + _backScreen->pitch, dest, surface->w * 2);
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dest += _backScreen->pitch;
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dest += _backScreen->pitch;
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}
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_fullRefresh = true; // See Screen::update
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}
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void Screen::drawDoubleSurface2Alpha(const Graphics::Surface *surface, NDrawRect &drawRect, byte alphaColor) {
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const byte *source = (const byte*)surface->getPixels();
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byte *dest = (byte*)_backScreen->getBasePtr(drawRect.x, drawRect.y);
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for (int16 yc = 0; yc < surface->h; yc++) {
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byte *row = dest;
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for (int16 xc = 0; xc < surface->w; xc++) {
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if (*source != alphaColor) {
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row[0] = *source;
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row[1] = *source;
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row[_backScreen->pitch] = *source;
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row[_backScreen->pitch + 1] = *source;
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}
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source++;
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row += 2;
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}
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dest += _backScreen->pitch;
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dest += _backScreen->pitch;
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}
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_fullRefresh = true; // See Screen::update
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}
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void Screen::drawUnk(const Graphics::Surface *surface, NDrawRect &drawRect, NDrawRect &sysRect, NRect &clipRect, bool transparent, byte version) {
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int16 x, y;
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bool xflag, yflag;
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NDrawRect newDrawRect;
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x = sysRect.x;
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if (sysRect.width <= x || -sysRect.width >= x)
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x = x % sysRect.width;
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if (x < 0)
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x += sysRect.width;
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y = sysRect.y;
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if (y >= sysRect.height || -sysRect.height >= y)
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y = y % sysRect.height;
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if (y < 0)
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y += sysRect.height;
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xflag = x <= 0;
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yflag = y <= 0;
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newDrawRect.x = x;
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newDrawRect.width = sysRect.width - x;
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if (drawRect.width < newDrawRect.width) {
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xflag = true;
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newDrawRect.width = drawRect.width;
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}
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newDrawRect.y = y;
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newDrawRect.height = sysRect.height - y;
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if (drawRect.height < newDrawRect.height) {
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yflag = true;
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newDrawRect.height = drawRect.height;
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}
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drawSurface3(surface, drawRect.x, drawRect.y, newDrawRect, clipRect, transparent, version);
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if (!xflag) {
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newDrawRect.x = 0;
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newDrawRect.y = y;
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newDrawRect.width = x + drawRect.width - sysRect.width;
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newDrawRect.height = sysRect.height - y;
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if (drawRect.height < newDrawRect.height)
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newDrawRect.height = drawRect.height;
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drawSurface3(surface, sysRect.width + drawRect.x - x, drawRect.y, newDrawRect, clipRect, transparent, version);
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}
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if (!yflag) {
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newDrawRect.x = x;
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newDrawRect.y = 0;
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newDrawRect.width = sysRect.width - x;
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newDrawRect.height = y + drawRect.height - sysRect.height;
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if (drawRect.width < newDrawRect.width)
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newDrawRect.width = drawRect.width;
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drawSurface3(surface, drawRect.x, sysRect.height + drawRect.y - y, newDrawRect, clipRect, transparent, version);
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}
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if (!xflag && !yflag) {
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newDrawRect.x = 0;
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newDrawRect.y = 0;
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newDrawRect.width = x + drawRect.width - sysRect.width;
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newDrawRect.height = y + drawRect.height - sysRect.height;
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drawSurface3(surface, sysRect.width + drawRect.x - x, sysRect.height + drawRect.y - y, newDrawRect, clipRect, transparent, version);
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}
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}
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void Screen::drawSurfaceClipRects(const Graphics::Surface *surface, NDrawRect &drawRect, NRect *clipRects, uint clipRectsCount, bool transparent, byte version) {
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NDrawRect clipDrawRect(0, 0, drawRect.width, drawRect.height);
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for (uint i = 0; i < clipRectsCount; i++)
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drawSurface3(surface, drawRect.x, drawRect.y, clipDrawRect, clipRects[i], transparent, version);
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}
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void Screen::queueBlit(const Graphics::Surface *surface, int16 destX, int16 destY, NRect &ddRect, bool transparent, byte version,
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const Graphics::Surface *shadowSurface, byte alphaColor) {
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const int width = ddRect.x2 - ddRect.x1;
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const int height = ddRect.y2 - ddRect.y1;
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if (width <= 0 || height <= 0)
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return;
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RenderItem renderItem;
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renderItem._surface = surface;
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renderItem._shadowSurface = shadowSurface;
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renderItem._destX = destX;
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renderItem._destY = destY;
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renderItem._srcX = ddRect.x1;
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renderItem._srcY = ddRect.y1;
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renderItem._width = width;
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renderItem._height = height;
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renderItem._transparent = transparent;
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renderItem._version = version;
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renderItem._alphaColor = alphaColor;
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_renderQueue->push_back(renderItem);
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}
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void Screen::blitRenderItem(const RenderItem &renderItem, const Common::Rect &clipRect) {
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const Graphics::Surface *surface = renderItem._surface;
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const Graphics::Surface *shadowSurface = renderItem._shadowSurface;
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const int16 x0 = MAX<int16>(clipRect.left, renderItem._destX);
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const int16 y0 = MAX<int16>(clipRect.top, renderItem._destY);
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const int16 x1 = MIN<int16>(clipRect.right, renderItem._destX + renderItem._width);
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const int16 y1 = MIN<int16>(clipRect.bottom, renderItem._destY + renderItem._height);
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const int16 width = x1 - x0;
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int16 height = y1 - y0;
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if (width < 0 || height < 0)
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return;
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const byte *source = (const byte*)surface->getBasePtr(renderItem._srcX + x0 - renderItem._destX, renderItem._srcY + y0 - renderItem._destY);
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byte *dest = (byte*)_backScreen->getBasePtr(x0, y0);
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if (shadowSurface) {
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const byte *shadowSource = (const byte*)shadowSurface->getBasePtr(x0, y0);
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while (height--) {
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for (int xc = 0; xc < width; xc++)
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if (source[xc] != 0)
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dest[xc] = shadowSource[xc];
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source += surface->pitch;
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shadowSource += shadowSurface->pitch;
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dest += _backScreen->pitch;
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}
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} else if (!renderItem._transparent) {
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while (height--) {
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memcpy(dest, source, width);
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source += surface->pitch;
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dest += _backScreen->pitch;
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}
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} else if (renderItem._alphaColor == 0) {
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while (height--) {
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for (int xc = 0; xc < width; xc++)
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if (source[xc] != 0)
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dest[xc] = source[xc];
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source += surface->pitch;
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dest += _backScreen->pitch;
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}
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} else {
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while (height--) {
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for (int xc = 0; xc < width; xc++)
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if (source[xc] != renderItem._alphaColor)
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dest[xc] = source[xc];
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source += surface->pitch;
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dest += _backScreen->pitch;
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}
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}
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}
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} // End of namespace Neverhood
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Reference in New Issue
Block a user