96 lines
2.4 KiB
C++
96 lines
2.4 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 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 "common/file.h"
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#include "image/png.h"
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#include "graphics/surface.h"
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#include "tetraedge/te/te_png.h"
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namespace Tetraedge {
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TePng::TePng(const Common::String &extn) : _height(0) {
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if (extn == "png#anim") {
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_nbFrames = 8;
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_frameRate = 8.0f;
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} else {
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_nbFrames = 1;
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}
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}
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TePng::~TePng() {
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}
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/*static*/
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bool TePng::matchExtension(const Common::String &extn) {
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return extn == "png" || extn == "png#anim";
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}
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bool TePng::load(const TetraedgeFSNode &node) {
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if (!TeScummvmCodec::load(node))
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return false;
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_height = _loadedSurface->h / _nbFrames;
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return true;
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}
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bool TePng::load(Common::SeekableReadStream &stream) {
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if (_loadedSurface)
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delete _loadedSurface;
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_loadedSurface = nullptr;
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Image::PNGDecoder png;
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if (!png.loadStream(stream))
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return false;
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_loadedSurface = png.getSurface()->convertTo(Graphics::PixelFormat::createFormatRGBA32());
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_height = _loadedSurface->h;
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return true;
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}
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bool TePng::update(uint i, TeImage &imgout) {
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if (_nbFrames == 1)
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return TeScummvmCodec::update(i, imgout);
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uint relFrame = i % _nbFrames;
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if (imgout.w == _loadedSurface->w && imgout.h == _height) {
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Common::Rect srcRect;
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srcRect.left = 0;
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srcRect.right = _loadedSurface->w;
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srcRect.top = relFrame * _height;
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srcRect.bottom = (relFrame + 1) * _height;
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imgout.blitFrom(*_loadedSurface, srcRect, Common::Point());
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return true;
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}
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error("TODO: Update animated png for different size");
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}
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// TODO: should this return true if last frame was 7?
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bool TePng::isAtEnd() {
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return false;
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}
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} // end namespace Tetraedge
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