public void GLBSaveWithoutBinary()
{
string outPath =
TestAssetPaths.GetOutPath(TestAssetPaths.GLB_BOX_OUT_PATH_TEMPLATE, 15, TestAssetPaths.GLB_EXTENSION);
FileStream glbOutStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
// first create from empty stream
GLBObject glbObject = GLBBuilder.ConstructFromStream(glbOutStream);
uint initialGLBLength = glbObject.BinaryChunkInfo.Length;
MemoryStream stream = new MemoryStream();
StreamWriter writer = new StreamWriter(stream);
writer.Write(TestAssetPaths.MIN_GLTF_STR);
writer.Flush();
stream.Position = 0;
GLTFRoot newRoot;
GLTFParser.ParseJson(stream, out newRoot);
GLBBuilder.SetRoot(glbObject, newRoot);
GLBBuilder.UpdateStream(glbObject);
Assert.AreEqual(glbObject.Header.FileLength, glbObject.JsonChunkInfo.StartPosition + glbObject.JsonChunkInfo.Length + GLTFParser.CHUNK_HEADER_SIZE);
glbOutStream.Close();
glbOutStream = new FileStream(outPath, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite);
List <ChunkInfo> chunks = GLTFParser.FindChunks(glbOutStream);
Assert.AreEqual(1, chunks.Count);
glbOutStream.Position = 0;
GLBObject testObject = GLBBuilder.ConstructFromStream(glbOutStream);
Assert.AreEqual(glbObject.JsonChunkInfo.Length, testObject.JsonChunkInfo.Length);
Assert.AreEqual(glbObject.BinaryChunkInfo.Length, testObject.BinaryChunkInfo.Length);
}
public void RemoveAllDataFromStream()
{
string outPath =
TestAssetPaths.GetOutPath(TestAssetPaths.GLB_BOX_OUT_PATH_TEMPLATE, 3, TestAssetPaths.GLB_EXTENSION);
FileStream glbStream = File.OpenRead(TestAssetPaths.GLB_BOX_PATH);
FileStream glbOutStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
GLBObject glbObject = GLBBuilder.ConstructFromStream(glbStream, glbOutStream);
BufferViewId id0 = new BufferViewId
{
Id = 0,
Root = glbObject.Root
};
int numBufferViews = glbObject.Root.BufferViews.Count;
for (int i = 0; i < numBufferViews; ++i)
{
GLBBuilder.RemoveBinaryData(glbObject, id0);
}
Assert.AreEqual(0, glbObject.Root.Buffers.Count);
Assert.AreEqual(0, glbObject.Root.BufferViews.Count);
}
public void RemoveMiddleDataFromStream()
{
string outPath =
TestAssetPaths.GetOutPath(TestAssetPaths.GLB_BOX_OUT_PATH_TEMPLATE, 3, TestAssetPaths.GLB_EXTENSION);
FileStream glbStream = File.OpenRead(TestAssetPaths.GLB_BOX_PATH);
FileStream glbOutStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
GLBObject glbObject = GLBBuilder.ConstructFromStream(glbStream, glbOutStream);
const uint numBuffersToAdd = 5;
const uint bufferSize = 100;
BufferViewId[] bufferViews = new BufferViewId[numBuffersToAdd];
for (int i = 0; i < numBuffersToAdd; ++i)
{
byte[] buffer = new byte[bufferSize];
bufferViews[i] = AddBinaryDataToStreamHelper(glbObject, new MemoryStream(buffer));
}
uint previousFileLength = glbObject.Header.FileLength;
uint previousBufferLength = glbObject.BinaryChunkInfo.Length;
int previousBufferViewCount = glbObject.Root.BufferViews.Count;
GLBBuilder.RemoveBinaryData(glbObject, bufferViews[2]); // remove from the middle
Assert.AreEqual(previousFileLength, glbObject.Header.FileLength);
Assert.AreEqual(previousBufferLength, glbObject.BinaryChunkInfo.Length);
Assert.AreEqual(previousBufferViewCount - 1, glbObject.Root.BufferViews.Count);
}
public void RemoveBinaryDataFromStream()
{
string outPath =
TestAssetPaths.GetOutPath(TestAssetPaths.GLB_BOX_OUT_PATH_TEMPLATE, 2, TestAssetPaths.GLB_EXTENSION);
FileStream glbStream = File.OpenRead(TestAssetPaths.GLB_BOX_PATH);
FileStream glbOutStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
GLBObject glbObject = GLBBuilder.ConstructFromStream(glbStream, glbOutStream);
const uint bufferSize = 100;
byte[] buffer = new byte[bufferSize];
BufferViewId bufferViewId = AddBinaryDataToStreamHelper(glbObject, new MemoryStream(buffer));
uint length = (uint)bufferViewId.Value.ByteLength;
uint previousFileLength = glbObject.Header.FileLength;
uint previousBufferLength = glbObject.BinaryChunkInfo.Length;
int previousBufferViewCount = glbObject.Root.BufferViews.Count;
GLBBuilder.RemoveBinaryData(glbObject, bufferViewId);
Assert.AreEqual(previousFileLength - length, glbObject.Header.FileLength);
Assert.AreEqual(previousBufferLength - length, glbObject.BinaryChunkInfo.Length);
Assert.AreEqual(previousBufferLength - length, (uint)glbObject.Root.Buffers[0].ByteLength);
Assert.AreEqual(previousBufferViewCount - 1, glbObject.Root.BufferViews.Count);
}
public void CreateAndSaveFromEmptyStream()
{
string outPath =
TestAssetPaths.GetOutPath(TestAssetPaths.GLB_BOX_OUT_PATH_TEMPLATE, 10, TestAssetPaths.GLB_EXTENSION);
FileStream glbStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
GLBObject glbObject = GLBBuilder.ConstructFromStream(glbStream);
Assert.IsNull(glbObject.Root);
MemoryStream stream = new MemoryStream();
StreamWriter writer = new StreamWriter(stream);
writer.Write(TestAssetPaths.MIN_GLTF_STR);
writer.Flush();
stream.Position = 0;
GLTFRoot gltfRoot;
GLTFParser.ParseJson(stream, out gltfRoot);
GLBBuilder.SetRoot(glbObject, gltfRoot);
GLBBuilder.UpdateStream(glbObject);
glbStream.Close();
glbStream = new FileStream(outPath, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite);
glbObject = GLBBuilder.ConstructFromStream(glbStream);
Assert.IsNotNull(glbObject.Root);
glbStream.Close();
}
public void AddBinaryDataToStream()
{
string outPath =
TestAssetPaths.GetOutPath(TestAssetPaths.GLB_BOX_OUT_PATH_TEMPLATE, 1, TestAssetPaths.GLB_EXTENSION);
Assert.IsTrue(File.Exists(TestAssetPaths.GLB_BOX_PATH));
FileStream glbStream = File.OpenRead(TestAssetPaths.GLB_BOX_PATH);
FileStream glbOutStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
GLBObject glbObject = GLBBuilder.ConstructFromStream(glbStream, glbOutStream);
const int bufferSize = 101;
byte[] buffer = new byte[bufferSize];
AddBinaryDataToStreamHelper(glbObject, new MemoryStream(buffer));
}
public void MergeGLBs()
{
Assert.IsTrue(File.Exists(TestAssetPaths.GLB_BOX_PATH));
FileStream glbStream = File.OpenRead(TestAssetPaths.GLB_BOX_PATH);
FileStream glbStream1 = File.OpenRead(TestAssetPaths.GLB_BOOMBOX_PATH);
string outPath =
TestAssetPaths.GetOutPath(TestAssetPaths.GLB_BOX_OUT_PATH_TEMPLATE, 4, TestAssetPaths.GLB_EXTENSION);
FileStream glbOutStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
GLBObject glbObject = GLBBuilder.ConstructFromStream(glbStream, glbOutStream);
GLBObject glbObject1 = GLBBuilder.ConstructFromStream(glbStream1);
uint initialGLBLength = glbObject.BinaryChunkInfo.Length;
GLBBuilder.MergeGLBs(glbObject, glbObject1);
Assert.AreEqual(initialGLBLength + glbObject1.BinaryChunkInfo.Length, glbObject.BinaryChunkInfo.Length);
}
public void CreateEmptyStreamAndAppendGLB()
{
string outPath =
TestAssetPaths.GetOutPath(TestAssetPaths.GLB_BOX_OUT_PATH_TEMPLATE, 11, TestAssetPaths.GLB_EXTENSION);
FileStream glbStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
GLBObject glbObject = GLBBuilder.ConstructFromStream(glbStream);
Assert.IsNull(glbObject.Root);
MemoryStream stream = new MemoryStream();
StreamWriter writer = new StreamWriter(stream);
writer.Write(TestAssetPaths.MIN_GLTF_STR);
writer.Flush();
stream.Position = 0;
GLTFRoot gltfRoot;
GLTFParser.ParseJson(stream, out gltfRoot);
GLBBuilder.SetRoot(glbObject, gltfRoot);
GLBBuilder.UpdateStream(glbObject);
FileStream glbAppendStream = File.OpenRead(TestAssetPaths.GLB_BOOMBOX_PATH);
GLBObject glbAppendObject = GLBBuilder.ConstructFromStream(glbAppendStream);
GLBBuilder.AddBinaryData(glbObject, glbAppendStream, false, glbAppendObject.BinaryChunkInfo.StartPosition + GLTFParser.CHUNK_HEADER_SIZE);
glbStream.Close();
glbStream = new FileStream(outPath, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite);
glbObject = GLBBuilder.ConstructFromStream(glbStream);
Assert.IsNotNull(glbObject.Root);
Assert.AreEqual(glbAppendObject.BinaryChunkInfo.Length, glbObject.BinaryChunkInfo.Length);
glbStream.Close();
}
public void UpdateStream()
{
Assert.IsTrue(File.Exists(TestAssetPaths.GLB_BOOMBOX_PATH));
FileStream glbStream = File.OpenRead(TestAssetPaths.GLB_BOOMBOX_PATH);
string outPath =
TestAssetPaths.GetOutPath(TestAssetPaths.GLB_BOX_OUT_PATH_TEMPLATE, 0, TestAssetPaths.GLB_EXTENSION);
FileStream glbOutStream = new FileStream(outPath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
GLBObject glbObject = GLBBuilder.ConstructFromStream(glbStream, glbOutStream);
for (int i = 0; i < 10; ++i)
{
glbObject.Root.Nodes.Add(new Node
{
Mesh = new MeshId
{
Id = 0,
Root = glbObject.Root
}
});
}
GLBBuilder.UpdateStream(glbObject);
glbOutStream.Position = 0;
GLTFRoot glbOutRoot;
GLTFParser.ParseJson(glbOutStream, out glbOutRoot);
FileStream glbFileStream = glbObject.Stream as FileStream;
Assert.AreEqual(glbFileStream, glbFileStream);
glbOutStream.Position = 0;
List <ChunkInfo> chunkInfo = GLTFParser.FindChunks(glbOutStream);
Assert.AreEqual(2, chunkInfo.Count);
CompareBinaryData(glbObject, glbStream);
}