bool FliFormat::onLoad(FileOp* fop)
{
// Open the file to read in binary mode
FileHandle handle(open_file_with_exception(fop->filename, "rb"));
FILE* f = handle.get();
flic::StdioFileInterface finterface(f);
flic::Decoder decoder(&finterface);
flic::Header header;
if (!decoder.readHeader(header)) {
fop_error(fop, "The file doesn't have a FLIC header\n");
return false;
}
// Size by frame
int w = header.width;
int h = header.height;
// Create a temporal bitmap
ImageRef bmp(Image::create(IMAGE_INDEXED, w, h));
Palette pal(0, 1);
Cel* prevCel = nullptr;
// Create the sprite
Sprite* sprite = new Sprite(IMAGE_INDEXED, w, h, 256);
LayerImage* layer = new LayerImage(sprite);
sprite->folder()->addLayer(layer);
layer->configureAsBackground();
// Set frames and speed
sprite->setTotalFrames(frame_t(header.frames));
sprite->setDurationForAllFrames(header.speed);
flic::Frame fliFrame;
flic::Colormap oldFliColormap;
fliFrame.pixels = bmp->getPixelAddress(0, 0);
fliFrame.rowstride = IndexedTraits::getRowStrideBytes(bmp->width());
frame_t frame_out = 0;
for (frame_t frame_in=0;
frame_in<sprite->totalFrames();
++frame_in) {
// Read the frame
if (!decoder.readFrame(fliFrame)) {
fop_error(fop, "Error reading frame %d\n", frame_in);
continue;
}
// Palette change
bool palChange = false;
if (frame_out == 0 || oldFliColormap != fliFrame.colormap) {
oldFliColormap = fliFrame.colormap;
pal.resize(fliFrame.colormap.size());
for (int c=0; c<int(fliFrame.colormap.size()); c++) {
pal.setEntry(c, rgba(fliFrame.colormap[c].r,
fliFrame.colormap[c].g,
fliFrame.colormap[c].b, 255));
}
pal.setFrame(frame_out);
sprite->setPalette(&pal, true);
palChange = true;
}
// First frame, or the frame changes
if (!prevCel ||
(count_diff_between_images(prevCel->image(), bmp.get()))) {
// Add the new frame
ImageRef image(Image::createCopy(bmp.get()));
Cel* cel = new Cel(frame_out, image);
layer->addCel(cel);
prevCel = cel;
++frame_out;
}
else if (palChange) {
Cel* cel = Cel::createLink(prevCel);
cel->setFrame(frame_out);
layer->addCel(cel);
++frame_out;
}
// The palette and the image don't change: add duration to the last added frame
else {
sprite->setFrameDuration(
frame_out-1, sprite->frameDuration(frame_out-1) + header.speed);
}
if (header.frames > 0)
fop_progress(fop, (float)(frame_in+1) / (float)(header.frames));
if (fop_is_stop(fop))
break;
if (fop->oneframe)
break;
}
if (frame_out > 0)
sprite->setTotalFrames(frame_out);
fop->createDocument(sprite);
return true;
}
void CopyCel::onExecute()
{
LayerImage* srcLayer = static_cast<LayerImage*>(m_srcLayer.layer());
LayerImage* dstLayer = static_cast<LayerImage*>(m_dstLayer.layer());
ASSERT(srcLayer);
ASSERT(dstLayer);
Sprite* srcSprite = srcLayer->sprite();
Sprite* dstSprite = dstLayer->sprite();
ASSERT(srcSprite);
ASSERT(dstSprite);
ASSERT(m_srcFrame >= 0 && m_srcFrame < srcSprite->totalFrames());
ASSERT(m_dstFrame >= 0);
(void)srcSprite; // To avoid unused variable warning on Release mode
Cel* srcCel = srcLayer->cel(m_srcFrame);
Cel* dstCel = dstLayer->cel(m_dstFrame);
// Clear destination cel if it does exist. It'll be overriden by the
// copy of srcCel.
if (dstCel) {
if (dstCel->links())
executeAndAdd(new cmd::UnlinkCel(dstCel));
executeAndAdd(new cmd::ClearCel(dstCel));
}
// Add empty frames until newFrame
while (dstSprite->totalFrames() <= m_dstFrame)
executeAndAdd(new cmd::AddFrame(dstSprite, dstSprite->totalFrames()));
Image* srcImage = (srcCel ? srcCel->image(): NULL);
ImageRef dstImage;
dstCel = dstLayer->cel(m_dstFrame);
if (dstCel)
dstImage = dstCel->imageRef();
bool createLink =
(srcLayer == dstLayer && dstLayer->isContinuous());
// For background layer
if (dstLayer->isBackground()) {
ASSERT(dstCel);
ASSERT(dstImage);
if (!dstCel || !dstImage ||
!srcCel || !srcImage)
return;
if (createLink) {
executeAndAdd(new cmd::SetCelData(dstCel, srcCel->dataRef()));
}
else {
BlendMode blend = (srcLayer->isBackground() ?
BlendMode::SRC:
BlendMode::NORMAL);
ImageRef tmp(Image::createCopy(dstImage.get()));
render::composite_image(tmp.get(), srcImage,
srcCel->x(), srcCel->y(), 255, blend);
executeAndAdd(new cmd::CopyRect(dstImage.get(), tmp.get(), gfx::Clip(tmp->bounds())));
}
}
// For transparent layers
else {
if (dstCel)
executeAndAdd(new cmd::RemoveCel(dstCel));
if (srcCel) {
if (createLink)
dstCel = Cel::createLink(srcCel);
else
dstCel = Cel::createCopy(srcCel);
dstCel->setFrame(m_dstFrame);
executeAndAdd(new cmd::AddCel(dstLayer, dstCel));
}
}
}
bool PixlyFormat::onLoad(FileOp* fop)
{
try {
// load XML metadata
XmlDocumentRef doc = open_xml(fop->filename());
TiXmlHandle xml(doc.get());
fop->setProgress(0.25);
TiXmlElement* xmlAnim = check(xml.FirstChild("PixlyAnimation").ToElement());
double version = check_number<double>(xmlAnim->Attribute("version"));
if (version < 1.5) {
throw Exception("version 1.5 or above required");
}
TiXmlElement* xmlInfo = check(xmlAnim->FirstChild("Info"))->ToElement();
int layerCount = check_number<int>(xmlInfo->Attribute("layerCount"));
int frameWidth = check_number<int>(xmlInfo->Attribute("frameWidth"));
int frameHeight = check_number<int>(xmlInfo->Attribute("frameHeight"));
UniquePtr<Sprite> sprite(new Sprite(IMAGE_RGB, frameWidth, frameHeight, 0));
TiXmlElement* xmlFrames = check(xmlAnim->FirstChild("Frames"))->ToElement();
int imageCount = check_number<int>(xmlFrames->Attribute("length"));
if (layerCount <= 0 || imageCount <= 0) {
throw Exception("No cels found");
}
int frameCount = imageCount / layerCount;
sprite->setTotalFrames(frame_t(frameCount));
sprite->setDurationForAllFrames(200);
for (int i=0; i<layerCount; i++) {
sprite->folder()->addLayer(new LayerImage(sprite));
}
// load image sheet
Document* sheet_doc = load_document(nullptr, base::replace_extension(fop->filename(),"png").c_str());
fop->setProgress(0.5);
if (sheet_doc == NULL) {
throw Exception("Pixly loader requires a valid PNG file");
}
Image* sheet = sheet_doc->sprite()->layer(0)->cel(0)->image();
if (sheet->pixelFormat() != IMAGE_RGB) {
throw Exception("Pixly loader requires a RGBA PNG");
}
int sheetWidth = sheet->width();
int sheetHeight = sheet->height();
// slice cels from sheet
std::vector<int> visible(layerCount, 0);
TiXmlElement* xmlFrame = check(xmlFrames->FirstChild("Frame"))->ToElement();
while (xmlFrame) {
TiXmlElement* xmlRegion = check(xmlFrame->FirstChild("Region"))->ToElement();
TiXmlElement* xmlIndex = check(xmlFrame->FirstChild("Index"))->ToElement();
int index = check_number<int>(xmlIndex->Attribute("linear"));
frame_t frame(index / layerCount);
LayerIndex layer_index(index % layerCount);
Layer *layer = sprite->indexToLayer(layer_index);
const char * duration = xmlFrame->Attribute("duration");
if (duration) {
sprite->setFrameDuration(frame, base::convert_to<int>(std::string(duration)));
}
visible[(int)layer_index] += (int)(std::string(check(xmlFrame->Attribute("visible"),"false")) == "true");
int x0 = check_number<int>(xmlRegion->Attribute("x"));
int y0_up = check_number<int>(xmlRegion->Attribute("y")); // inverted
if (y0_up < 0 || y0_up + frameHeight > sheetHeight || x0 < 0 || x0 + frameWidth > sheetWidth) {
throw Exception("looking for cels outside the bounds of the PNG");
}
// read cel images
ImageRef image(Image::create(IMAGE_RGB, frameWidth, frameHeight));
for (int y = 0; y < frameHeight; y++) {
// RGB_ALPHA
int y0_down = sheetHeight-1 - y0_up - (frameHeight-1) + y;
uint32_t* src_begin = (uint32_t*)sheet->getPixelAddress(x0 , y0_down);
uint32_t* src_end = (uint32_t*)sheet->getPixelAddress(x0+frameWidth, y0_down);
uint32_t* dst_begin = (uint32_t*)image->getPixelAddress(0, y);
std::copy(src_begin, src_end, dst_begin);
}
// make cel trimmed or empty
gfx::Rect bounds;
if (algorithm::shrink_bounds(image.get(), bounds, image->maskColor())) {
ImageRef trim_image(crop_image(image.get(),
bounds.x, bounds.y,
bounds.w, bounds.h,
image->maskColor()));
Cel* cel = NULL;
if ((int)frame > 0) {
// link identical neighbors
Cel *prev_cel = static_cast<LayerImage*>(layer)->cel(frame-1);
if (prev_cel && prev_cel->x() == bounds.x && prev_cel->y() == bounds.y) {
Image *prev_image = prev_cel->image();
if (prev_image && doc::count_diff_between_images(prev_image, trim_image.get()) == 0) {
cel = Cel::createLink(prev_cel);
cel->setFrame(frame);
} // count_diff_between_images
} // prev_cel
} // frame > 0
if (cel == NULL) {
cel = new Cel(frame, trim_image);
cel->setPosition(bounds.x, bounds.y);
}
static_cast<LayerImage*>(layer)->addCel(cel);
}
xmlFrame = xmlFrame->NextSiblingElement();
fop->setProgress(0.5 + 0.5 * ((float)(index+1) / (float)imageCount));
}
for (int i=0; i<layerCount; i++) {
LayerIndex layer_index(i);
Layer *layer = sprite->indexToLayer(layer_index);
layer->setVisible(visible[i] > frameCount/2);
}
fop->createDocument(sprite);
sprite.release();
}
catch(Exception &e) {
fop->setError((std::string("Pixly file format: ")+std::string(e.what())+"\n").c_str());
return false;
}
return true;
}
