public synchronized int compress(byte[] b, int off, int len) throws IOException {
if (b == null) {
throw new NullPointerException();
}
if (off < 0 || len < 0 || off > b.length - len) {
throw new ArrayIndexOutOfBoundsException();
}
int n = 0;
// Check if there is compressed data
n = compressedDirectBuf.remaining();
if (n > 0) {
n = Math.min(n, len);
((ByteBuffer) compressedDirectBuf).get(b, off, n);
return n;
}
// Re-initialize the zlib's output direct buffer
compressedDirectBuf.rewind();
compressedDirectBuf.limit(directBufferSize);
// Compress data
n = deflateBytesDirect();
compressedDirectBuf.limit(n);
// Get atmost 'len' bytes
n = Math.min(n, len);
((ByteBuffer) compressedDirectBuf).get(b, off, n);
return n;
}
public synchronized void reset() {
checkStream();
reset(stream);
finish = false;
finished = false;
uncompressedDirectBuf.rewind();
uncompressedDirectBufOff = uncompressedDirectBufLen = 0;
compressedDirectBuf.limit(directBufferSize);
compressedDirectBuf.position(directBufferSize);
userBufOff = userBufLen = 0;
}
synchronized void setInputFromSavedData() {
uncompressedDirectBufOff = 0;
uncompressedDirectBufLen = userBufLen;
if (uncompressedDirectBufLen > directBufferSize) {
uncompressedDirectBufLen = directBufferSize;
}
// Reinitialize zlib's input direct buffer
uncompressedDirectBuf.rewind();
((ByteBuffer) uncompressedDirectBuf).put(userBuf, userBufOff, uncompressedDirectBufLen);
// Note how much data is being fed to zlib
userBufOff += uncompressedDirectBufLen;
userBufLen -= uncompressedDirectBufLen;
}
public void drawTriangleList(VertexBuffer indexBuf, Mesh mesh, int count) {
Mesh.Mode mode = mesh.getMode();
Buffer indexData = indexBuf.getData();
indexData.rewind();
if (mesh.getMode() == Mode.Hybrid) {
throw new UnsupportedOperationException();
/*
int[] modeStart = mesh.getModeStart();
int[] elementLengths = mesh.getElementLengths();
int elMode = convertElementMode(Mode.Triangles);
int fmt = convertVertexFormat(indexBuf.getFormat());
// int elSize = indexBuf.getFormat().getComponentSize();
// int listStart = modeStart[0];
int stripStart = modeStart[1];
int fanStart = modeStart[2];
int curOffset = 0;
for (int i = 0; i < elementLengths.length; i++) {
if (i == stripStart) {
elMode = convertElementMode(Mode.TriangleStrip);
} else if (i == fanStart) {
elMode = convertElementMode(Mode.TriangleStrip);
}
int elementLength = elementLengths[i];
indexData.position(curOffset);
drawElements(elMode,
fmt,
indexData);
curOffset += elementLength;
}*/
} else {
drawElements(convertElementMode(mode), convertVertexFormat(indexBuf.getFormat()), indexData);
}
}
public void setVertexAttrib(VertexBuffer vb, VertexBuffer idb) {
if (vb.getBufferType() == VertexBuffer.Type.Color && !context.useVertexColor) {
// Ignore vertex color buffer if vertex color is disabled.
return;
}
int arrayType = convertArrayType(vb.getBufferType());
if (arrayType == -1) {
return; // unsupported
}
glEnableClientState(arrayType);
context.boundAttribs[vb.getBufferType().ordinal()] = vb;
if (vb.getBufferType() == Type.Normal) {
// normalize if requested
if (vb.isNormalized() && !context.normalizeEnabled) {
glEnable(GL_NORMALIZE);
context.normalizeEnabled = true;
} else if (!vb.isNormalized() && context.normalizeEnabled) {
glDisable(GL_NORMALIZE);
context.normalizeEnabled = false;
}
}
// NOTE: Use data from interleaved buffer if specified
Buffer data = idb != null ? idb.getData() : vb.getData();
int comps = vb.getNumComponents();
int type = convertVertexFormat(vb.getFormat());
data.rewind();
switch (vb.getBufferType()) {
case Position:
if (!(data instanceof FloatBuffer)) {
throw new UnsupportedOperationException();
}
glVertexPointer(comps, vb.getStride(), (FloatBuffer) data);
break;
case Normal:
if (!(data instanceof FloatBuffer)) {
throw new UnsupportedOperationException();
}
glNormalPointer(vb.getStride(), (FloatBuffer) data);
break;
case Color:
if (data instanceof FloatBuffer) {
glColorPointer(comps, vb.getStride(), (FloatBuffer) data);
} else if (data instanceof ByteBuffer) {
glColorPointer(comps, true, vb.getStride(), (ByteBuffer) data);
} else {
throw new UnsupportedOperationException();
}
break;
case TexCoord:
if (!(data instanceof FloatBuffer)) {
throw new UnsupportedOperationException();
}
glTexCoordPointer(comps, vb.getStride(), (FloatBuffer) data);
break;
default:
// Ignore, this is an unsupported attribute for OpenGL1.
break;
}
}
// Don't remove splitmirorred boolean,It's not used right now, but i intend to
// make this method also split vertice with rotated tangent space and I'll
// add another splitRotated boolean
private static List<VertexData> splitVertices(
Mesh mesh, List<VertexData> vertexData, boolean splitMirorred) {
int nbVertices = mesh.getBuffer(Type.Position).getNumElements();
List<VertexData> newVertices = new ArrayList<VertexData>();
Map<Integer, Integer> indiceMap = new HashMap<Integer, Integer>();
FloatBuffer normalBuffer = mesh.getFloatBuffer(Type.Normal);
for (int i = 0; i < vertexData.size(); i++) {
ArrayList<TriangleData> triangles = vertexData.get(i).triangles;
Vector3f givenNormal = new Vector3f();
populateFromBuffer(givenNormal, normalBuffer, i);
ArrayList<TriangleData> trianglesUp = new ArrayList<TriangleData>();
ArrayList<TriangleData> trianglesDown = new ArrayList<TriangleData>();
for (int j = 0; j < triangles.size(); j++) {
TriangleData triangleData = triangles.get(j);
if (parity(givenNormal, triangleData.normal) > 0) {
trianglesUp.add(triangleData);
} else {
trianglesDown.add(triangleData);
}
}
// if the vertex has triangles with opposite parity it has to be split
if (!trianglesUp.isEmpty() && !trianglesDown.isEmpty()) {
log.log(Level.FINE, "Splitting vertex {0}", i);
// assigning triangle with the same parity to the original vertex
vertexData.get(i).triangles.clear();
vertexData.get(i).triangles.addAll(trianglesUp);
// creating a new vertex
VertexData newVert = new VertexData();
// assigning triangles with opposite parity to it
newVert.triangles.addAll(trianglesDown);
newVertices.add(newVert);
// keep vertex index to fix the index buffers later
indiceMap.put(nbVertices, i);
for (TriangleData tri : newVert.triangles) {
for (int j = 0; j < tri.index.length; j++) {
if (tri.index[j] == i) {
tri.index[j] = nbVertices;
}
}
}
nbVertices++;
}
}
if (!newVertices.isEmpty()) {
// we have new vertices, we need to update the mesh's buffers.
for (Type type : VertexBuffer.Type.values()) {
// skip tangent buffer as we're gonna overwrite it later
if (type == Type.Tangent || type == Type.BindPoseTangent) {
continue;
}
VertexBuffer vb = mesh.getBuffer(type);
// Some buffer (hardware skinning ones) can be there but not
// initialized, they must be skipped.
// They'll be initialized when Hardware Skinning is engaged
if (vb == null || vb.getNumComponents() == 0) {
continue;
}
Buffer buffer = vb.getData();
// IndexBuffer has special treatement, only swapping the vertex indices is needed
if (type == Type.Index) {
boolean isShortBuffer = vb.getFormat() == VertexBuffer.Format.UnsignedShort;
for (VertexData vertex : newVertices) {
for (TriangleData tri : vertex.triangles) {
for (int i = 0; i < tri.index.length; i++) {
if (isShortBuffer) {
((ShortBuffer) buffer).put(tri.triangleOffset + i, (short) tri.index[i]);
} else {
((IntBuffer) buffer).put(tri.triangleOffset + i, tri.index[i]);
}
}
}
}
vb.setUpdateNeeded();
} else {
// copy the buffer in a bigger one and append nex vertices to the end
Buffer newVerts =
VertexBuffer.createBuffer(vb.getFormat(), vb.getNumComponents(), nbVertices);
if (buffer != null) {
buffer.rewind();
bulkPut(vb.getFormat(), newVerts, buffer);
int index = vertexData.size();
newVerts.position(vertexData.size() * vb.getNumComponents());
for (int j = 0; j < newVertices.size(); j++) {
int oldInd = indiceMap.get(index);
for (int i = 0; i < vb.getNumComponents(); i++) {
putValue(vb.getFormat(), newVerts, buffer, oldInd * vb.getNumComponents() + i);
}
index++;
}
vb.updateData(newVerts);
// destroy previous buffer as it's no longer needed
destroyDirectBuffer(buffer);
}
}
}
vertexData.addAll(newVertices);
mesh.updateCounts();
}
return vertexData;
}
