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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "common/file.h"
#include "image/png.h"
#include "graphics/surface.h"
#include "graphics/managed_surface.h"
#include "tetraedge/te/te_images_sequence.h"
namespace Tetraedge {
TeImagesSequence::TeImagesSequence() : _width(0), _height(0), _curFrame(0) {
}
TeImagesSequence::~TeImagesSequence() {
for (auto surf : _cachedSurfaces) {
if (surf)
delete surf;
}
}
/*static*/
bool TeImagesSequence::matchExtension(const Common::String &extn) {
return extn == "anim";
}
static bool compareNodes(const Common::FSNode &left, const Common::FSNode &right) {
return left.getPath() < right.getPath();
}
bool TeImagesSequence::load(const Common::Path &path) {
Common::FSNode directory(path);
if (!directory.isDirectory()) {
warning("TeImagesSequence::load:: not a directory %s", path.toString().c_str());
return false;
}
Common::FSList children;
if (!directory.getChildren(children, Common::FSNode::kListFilesOnly) || children.empty()) {
warning("TeImagesSequence::load:: couldn't get children of %s", path.toString().c_str());
return false;
}
Common::sort(children.begin(), children.end(), compareNodes);
if (!SearchMan.hasArchive(path.toString()))
SearchMan.addDirectory(path.toString(), directory);
for (Common::FSNode &child : children) {
Common::String filePathStr = child.getPath();
if (filePathStr.size() <= 10 || filePathStr.substr(filePathStr.size() - 7) != "fps.png")
continue;
Common::Path filePath(filePathStr);
Common::String fname = filePath.getLastComponent().toString();
Common::String fstart = fname.substr(0, fname.size() - 7);
int frameno = 0;
int fps = 0;
if (sscanf(fstart.c_str(), "%d-%d", &frameno, &fps) != 2) {
warning("TeImagesSequence::load can't match %s", fname.c_str());
continue;
}
Common::SeekableReadStream *stream = child.createReadStream();
if (!stream) {
warning("TeImagesSequence::load can't open %s", filePath.toString().c_str());
continue;
}
// Only do the deep check for the first file to get dimensions.
// If the images are small then cache them to avoid reloading each frame each time.
if (!_width || (_width < 100 && _height < 100)) {
Image::PNGDecoder png;
if (!png.loadStream(*stream)) {
warning("Image sequence failed to load png %s", filePath.toString().c_str());
delete stream;
return false;
}
_frameRate = fps;
const Graphics::Surface *pngsurf = png.getSurface();
assert(pngsurf);
_width = pngsurf->w;
_height = pngsurf->h;
if (_width < 100 && _height < 100) {
Graphics::ManagedSurface *surf = new Graphics::ManagedSurface();
surf->copyFrom(pngsurf);
_cachedSurfaces.push_back(surf);
} else {
_cachedSurfaces.push_back(nullptr);
}
} else {
_cachedSurfaces.push_back(nullptr);
}
_files.push_back(child);
delete stream;
}
return true;
}
bool TeImagesSequence::update(unsigned long i, TeImage &imgout) {
_curFrame = i;
if (i >= _files.size())
return false;
if (_cachedSurfaces[i] == nullptr) {
Common::SeekableReadStream *stream = _files[i].createReadStream();
if (!stream)
error("Open %s failed.. it was ok before?", _files[i].getName().c_str());
Image::PNGDecoder png;
if (!png.loadStream(*stream)) {
warning("Image sequence failed to load png %s", _files[i].getName().c_str());
delete stream;
return false;
}
const Graphics::Surface *surf = png.getSurface();
assert(surf);
imgout.setAccessName(_files[i].getPath());
if (imgout.w == surf->w && imgout.h == surf->h && imgout.format == surf->format) {
imgout.copyFrom(*surf);
delete stream;
return true;
}
} else {
const Graphics::ManagedSurface *surf = _cachedSurfaces[i];
if (imgout.w == surf->w && imgout.h == surf->h && imgout.format == surf->format) {
imgout.setAccessName(_files[i].getPath());
imgout.copyFrom(*surf);
return true;
}
}
error("TODO: Implement TeImagesSequence::update for different sizes");
}
bool TeImagesSequence::isAtEnd() {
return _curFrame >= _files.size();
}
TeImage::Format TeImagesSequence::imageFormat() {
return TeImage::RGBA8;
}
} // end namespace Tetraedge
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