private void begin(Writer writer, IndWriter indexer, int mode, int blockSize) {
mDraw.checkErr();
mActiveWriter = writer;
mActiveIndexer = indexer;
mActiveMode = mode;
mVertBuf.clear();
int bytes = mVertBuf.capacity();
int vertBytes = writer.mVertWriter.bytesPerElem();
mActiveCap = (bytes / (vertBytes * blockSize)) * blockSize;
mActivePos = 0;
writer.mProgram.bind(mDraw);
writer.mVao.bind(mDraw);
mVbo.bind(mDraw);
if (indexer != null) {
indexer.reset();
mIndBuf.clear();
mIbo.bind(mDraw);
}
DrawUtil.checkErr();
}
public void init(DrawEnv d) {
mDraw = d;
if (mVbo.id() != 0) {
return;
}
mVbo.alloc(mVertBuf.capacity());
mVbo.init(d);
mIbo.alloc(mIndBuf.capacity());
mIbo.init(d);
d.checkErr();
}