public void ValidAttributeSingleBuffer()
{
var mesh = new MeshA();
mesh.AddBuffer("buffer1", new byte[vertexCount * 4]);
mesh.ConfigureAttribute(new VertexFloatAttribute("attr1", ValueCount.Four, VertexAttribPointerType.Byte, false), "buffer1", 0, 4);
}
public void ValidAttributeSizeLessThanStride()
{
// The last element won't actually read one byte past the end of the buffer.
var mesh = new MeshA();
mesh.AddBuffer("buffer1", new byte[(vertexCount * 5) - 1]);
mesh.ConfigureAttribute(new VertexFloatAttribute("attr1", ValueCount.Four, VertexAttribPointerType.Byte, false), "buffer1", 0, 5);
}
public void InvaidAttributeNoBuffers()
{
var mesh = new MeshA();
var e = Assert.ThrowsException <ArgumentException>(() =>
mesh.ConfigureAttribute(new VertexFloatAttribute("attr1", ValueCount.Four, VertexAttribPointerType.Byte, false), "buffer1", 0, 4));
Assert.AreEqual("bufferName", e.ParamName);
Assert.IsTrue(e.Message.Contains("The buffer buffer1 has not been added."));
}
public void ValidAttributeStrideTooLarge()
{
var mesh = new MeshA();
mesh.AddBuffer("buffer1", new byte[vertexCount * 3]);
var e = Assert.ThrowsException <ArgumentOutOfRangeException>(() =>
mesh.ConfigureAttribute(new VertexFloatAttribute("attr1", ValueCount.Four, VertexAttribPointerType.Byte, false), "buffer1", 0, 4));
Assert.IsTrue(e.Message.Contains("One or more attribute data accesses will not be within the specified buffer's data storage"));
}
public void InvalidAttributeNegativeOffset()
{
var mesh = new MeshA();
mesh.AddBuffer("buffer1", buffer1);
var e = Assert.ThrowsException <ArgumentOutOfRangeException>(() =>
mesh.ConfigureAttribute(new VertexFloatAttribute("attr1", ValueCount.Four, VertexAttribPointerType.Byte, false), "buffer1", -5, sizeof(byte) * 4));
Assert.IsTrue(e.Message.Contains("One or more attribute data accesses will not be within the specified buffer's data storage"));
}
public void ValidAttributeMultipleBuffers()
{
// Buffer 2 and 3 wouldn't be valid.
var mesh = new MeshA();
mesh.AddBuffer("buffer2", new byte[vertexCount * 3]);
mesh.AddBuffer("buffer1", new byte[vertexCount * 4]);
mesh.AddBuffer("buffer3", new byte[vertexCount * 1]);
mesh.ConfigureAttribute(new VertexFloatAttribute("attr1", ValueCount.Four, VertexAttribPointerType.Byte, false), "buffer1", 0, 4);
}
public void InvalidAttributePointerType()
{
// The attribute data size is larger than stride.
// It's unclear what OpenGL would do in this case.
var mesh = new MeshA();
mesh.AddBuffer("buffer1", new byte[vertexCount * 4]);
var e = Assert.ThrowsException <ArgumentOutOfRangeException>(() =>
mesh.ConfigureAttribute(new VertexFloatAttribute("attr1", ValueCount.Four, VertexAttribPointerType.Double, false), "buffer1", 0, 4));
Assert.IsTrue(e.Message.Contains("One or more attribute data accesses will not be within the specified buffer's data storage"));
}