public void TestWrite()
{
// Define variables and constants
IndexBuffer testBuffer = BufferFactory.NewIndexBuffer()
.WithUsage(ResourceUsage.Write)
.WithLength(300);
// Set up context
// Execute
testBuffer.Write(Enumerable.Range(0, 300).Select(@int => (uint)@int).ToArray(), 0);
testBuffer.Write(Enumerable.Range(0, 200).Select(@int => (uint)@int).ToArray(), 100);
testBuffer.Write(new ArraySlice <uint>(Enumerable.Range(0, 200).Select(@int => (uint)@int).ToArray(), 50, 50), 24);
#if !DEVELOPMENT && !RELEASE
try {
testBuffer.Write(new ArraySlice <uint>(Enumerable.Range(0, 200).Select(@int => (uint)@int).ToArray(), 50), 250);
Assert.Fail();
}
catch (AssuranceFailedException) { }
#endif
// Assert outcome
Assert.IsTrue(testBuffer.CanWrite);
testBuffer.Dispose();
}
public void TestClone()
{
// Define variables and constants
const ResourceUsage USAGE = ResourceUsage.Write;
const uint NUM_INDICES = 21515;
IndexBuffer firstBuffer = BufferFactory.NewIndexBuffer().WithUsage(USAGE).WithLength(NUM_INDICES);
// Set up context
// Execute
IndexBuffer secondBuffer = firstBuffer.Clone();
IndexBuffer thirdBuffer = secondBuffer.Clone().WithLength(NUM_INDICES * 2U);
// Assert outcome
Assert.AreEqual(USAGE, secondBuffer.Usage);
Assert.AreEqual(firstBuffer.Usage, secondBuffer.Usage);
Assert.AreEqual(NUM_INDICES, secondBuffer.Length);
Assert.AreEqual(firstBuffer.Length, secondBuffer.Length);
Assert.AreEqual(USAGE, thirdBuffer.Usage);
Assert.AreEqual(secondBuffer.Length * 2U, thirdBuffer.Length);
firstBuffer.Dispose();
secondBuffer.Dispose();
thirdBuffer.Dispose();
}
public void TestCreation()
{
// Define variables and constants
IndexBufferBuilder defaultBuilder = BufferFactory.NewIndexBuffer().WithLength(1);
IndexBufferBuilder builderWithFrequentWrite = defaultBuilder.WithUsage(ResourceUsage.DiscardWrite);
IndexBufferBuilder builderWith300Indices = builderWithFrequentWrite.WithLength(300);
IndexBufferBuilder builderWithInitData = defaultBuilder
.WithInitialData(Enumerable.Range(0, 10).Select(@int => (uint)@int).ToArray());
// Set up context
// Execute
IndexBuffer withFreqWriteBuffer = builderWithFrequentWrite;
IndexBuffer with300IndexBuffer = builderWith300Indices;
IndexBuffer withInitDataBuffer = builderWithInitData;
// Assert outcome
Assert.AreEqual(ResourceUsage.DiscardWrite, withFreqWriteBuffer.Usage);
Assert.AreEqual(300U, with300IndexBuffer.Length);
Assert.AreEqual(10U, withInitDataBuffer.Length);
try {
builderWithInitData.WithUsage(ResourceUsage.StagingRead);
Assert.Fail();
}
catch (ArgumentException) { }
withFreqWriteBuffer.Dispose();
with300IndexBuffer.Dispose();
withInitDataBuffer.Dispose();
}
public void TestSetIndexBuffer()
{
IndexBuffer ib = BufferFactory.NewIndexBuffer().WithLength(300U).WithUsage(ResourceUsage.DiscardWrite);
RenderCommand testCommand = RenderCommand.SetIndexBuffer(ib);
Assert.AreEqual(RenderCommandInstruction.SetIndexBuffer, testCommand.Instruction);
Assert.AreEqual((RenderCommandArgument)(IntPtr)ib.ResourceHandle, testCommand.Arg1);
ib.Dispose();
#if !DEVELOPMENT && !RELEASE
try {
RenderCommand.SetIndexBuffer(null);
Assert.Fail();
}
catch (AssuranceFailedException) { }
try {
RenderCommand.SetIndexBuffer(ib);
Assert.Fail();
}
catch (AssuranceFailedException) { }
#endif
}
public unsafe void TestProperties()
{
// Define variables and constants
const int FAKE_CACHE_ID = 1351617;
IVertexBuffer[] buffers = new IVertexBuffer[2];
buffers[0] = BufferFactory.NewVertexBuffer <Vector3>()
.WithInitialData(new[] { Vector3.ONE * 0f, Vector3.ONE * 1f, Vector3.ONE * 2f, Vector3.ONE * 3f, Vector3.ONE * 4f, Vector3.ONE * 5f })
.WithUsage(ResourceUsage.Immutable)
.Create();
buffers[1] = BufferFactory.NewVertexBuffer <Vector2>()
.WithInitialData(new[] { Vector2.ONE * 0f, Vector2.ONE * 1f, Vector2.ONE * 2f, Vector2.ONE * 3f, Vector2.ONE * 4f, Vector2.ONE * 5f })
.WithUsage(ResourceUsage.Immutable)
.Create();
string[] semantics = { "POSITION", "TEXCOORD" };
ResourceFormat[] formats = { ResourceFormat.R32G32B32Float, ResourceFormat.R32G32Float };
IndexBuffer indices = BufferFactory.NewIndexBuffer()
.WithInitialData(new uint[] { 0, 1, 2, 1, 2, 0, 2, 1, 0, 3, 4, 5, 4, 5, 3, 5, 3, 4, 5, 3, 4 })
.WithUsage(ResourceUsage.Immutable);
AlignedAllocation <uint> componentStartPointsAlloc = AlignedAllocation <uint> .AllocArray(7L, 3);
*(((uint *)componentStartPointsAlloc.AlignedPointer) + 0) = 0U;
*(((uint *)componentStartPointsAlloc.AlignedPointer) + 1) = 3U;
*(((uint *)componentStartPointsAlloc.AlignedPointer) + 2) = 6U;
AlignedAllocation <uint> indexStartPointsAlloc = AlignedAllocation <uint> .AllocArray(7L, 3);
*(((uint *)indexStartPointsAlloc.AlignedPointer) + 0) = 0U;
*(((uint *)indexStartPointsAlloc.AlignedPointer) + 1) = 9U;
*(((uint *)indexStartPointsAlloc.AlignedPointer) + 2) = 21U;
Dictionary <string, ModelHandle> modelNameMap = new Dictionary <string, ModelHandle>()
{
{ FAKE_CACHE_ID + "A", new ModelHandle(FAKE_CACHE_ID, 0U) },
{ FAKE_CACHE_ID + "B", new ModelHandle(FAKE_CACHE_ID, 1U) }
};
const uint NUM_MODELS = 2;
// Set up context
GeometryCache cache = new GeometryCache(
buffers, semantics, formats,
indices, componentStartPointsAlloc, indexStartPointsAlloc,
NUM_MODELS, typeof(FakeVertex), FAKE_CACHE_ID, modelNameMap
);
// Execute
// Assert outcome
Assert.AreEqual(buffers[0], cache.VertexBuffers[0]);
Assert.AreEqual(buffers[1], cache.VertexBuffers[1]);
Assert.AreEqual(semantics[0], cache.VertexSemantics[0]);
Assert.AreEqual(semantics[1], cache.VertexSemantics[1]);
Assert.AreEqual(formats[0], cache.VertexFormats[0]);
Assert.AreEqual(formats[1], cache.VertexFormats[1]);
Assert.AreEqual(indices, cache.IndexBuffer);
cache.Dispose();
}
public void TestCopyTo()
{
// Define variables and constants
IndexBuffer srcBuffer = BufferFactory.NewIndexBuffer()
.WithUsage(ResourceUsage.Immutable)
.WithInitialData(Enumerable.Range(0, 3000).Select(@int => (uint)@int).ToArray());
IndexBuffer dstBuffer = srcBuffer.Clone()
.WithUsage(ResourceUsage.DiscardWrite);
// Set up context
// Execute
srcBuffer.CopyTo(dstBuffer);
srcBuffer.CopyTo(dstBuffer, 100, 2000, 500);
try {
dstBuffer.CopyTo(srcBuffer);
Assert.Fail();
}
catch (ResourceOperationUnavailableException) { }
#if !DEVELOPMENT && !RELEASE
try {
srcBuffer.CopyTo(dstBuffer, 1600, 2000, 500);
Assert.Fail();
}
catch (AssuranceFailedException) { }
try {
srcBuffer.CopyTo(dstBuffer, 0, 2000, 2000);
Assert.Fail();
}
catch (AssuranceFailedException) { }
#endif
// Assert outcome
Assert.IsFalse(srcBuffer.CanBeCopyDestination);
Assert.IsTrue(dstBuffer.CanBeCopyDestination);
srcBuffer.Dispose();
dstBuffer.Dispose();
}
/// <summary>
/// Builds the <see cref="GeometryCache"/> with all the models that have previously been added with <see cref="AddModel"/>.
/// This method may only be called once per GeometryCacheBuilder.
/// </summary>
/// <returns>A new <see cref="GeometryCache"/> containing 'baked' resource data for all the loaded models and an
/// "instance pool", allowing model instances to be created and loaded in to the <see cref="Scene"/>.</returns>
public unsafe GeometryCache Build()
{
lock (instanceMutationLock) {
if (isBuilt)
{
throw new InvalidOperationException("Cache has already been built!");
}
FieldInfo[] vertexComponents = typeof(TVertex).GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
if (vertexComponents.Length > VertexShader.MAX_VS_INPUT_BINDINGS)
{
throw new InvalidOperationException("Vertex type '" + typeof(TVertex).Name + "' has too many components. Maximum " +
"permissible is " + VertexShader.MAX_VS_INPUT_BINDINGS + ", but the vertex type has " + vertexComponents.Length + " fields.");
}
else if (vertexComponents.Length == 0)
{
throw new InvalidOperationException("Vertex type '" + typeof(TVertex).Name + "' has no components. Please choose a type with " +
"at least one field.");
}
if (vertexCounts.Count == 0)
{
throw new InvalidOperationException("Can not build empty geometry cache: Please add at least one model first!");
}
if (modelNames.AnyDuplicates())
{
throw new InvalidOperationException("No two models should have the same name.");
}
if (GeometryCache.CheckForModelNameClashes(modelNames))
{
throw new InvalidOperationException("One or more model names added to this builder have already been used in other active geometry caches.");
}
IVertexBuffer[] vertexComponentBuffers = new IVertexBuffer[vertexComponents.Length];
string[] vertexComponentSemantics = new string[vertexComponents.Length];
ResourceFormat[] vertexComponentFormats = new ResourceFormat[vertexComponents.Length];
for (int i = 0; i < vertexComponents.Length; ++i)
{
FieldInfo component = vertexComponents[i];
if (!component.FieldType.IsBlittable())
{
throw new InvalidOperationException("Invalid vertex component type: '" + component.FieldType.Name + "'.");
}
if (!component.HasCustomAttribute <VertexComponentAttribute>())
{
throw new InvalidOperationException("Every field on given vertex type (" + typeof(TVertex).Name + ") must be annoted with " +
"a " + typeof(VertexComponentAttribute).Name + "!");
}
typeof(GeometryCacheBuilder <TVertex>)
.GetMethod("FillComponentBuffer", BindingFlags.NonPublic | BindingFlags.Instance) // TODO replace with nameof() operator when C#6 is released
.MakeGenericMethod(component.FieldType)
.Invoke(this, new object[] { component, i, vertexComponentBuffers, vertexComponentSemantics, vertexComponentFormats });
}
IndexBuffer indexBuffer = BufferFactory.NewIndexBuffer().WithInitialData(indices.ToArray()).WithUsage(ResourceUsage.Immutable);
Assure.Equal(vertexCounts.Count, indexCounts.Count);
AlignedAllocation <uint> componentStartPointsAlloc = AlignedAllocation <uint> .AllocArray(
START_POINT_ARRAY_ALIGNMENT,
(uint)vertexCounts.Count + 1U // Extra one so we can set the last value to one-past-the-end (performance improvement later on)
);
AlignedAllocation <uint> indexStartPointsAlloc = AlignedAllocation <uint> .AllocArray(
START_POINT_ARRAY_ALIGNMENT,
(uint)vertexCounts.Count + 1U // Extra one so we can set the last value to one-past-the-end (performance improvement later on)
);
uint *componentStartPtr = (uint *)componentStartPointsAlloc.AlignedPointer;
uint *indexStartPtr = (uint *)indexStartPointsAlloc.AlignedPointer;
uint vbCounter = 0U;
uint ibCounter = 0U;
for (int i = 0; i < vertexCounts.Count; ++i)
{
componentStartPtr[i] = vbCounter;
indexStartPtr[i] = ibCounter;
vbCounter += vertexCounts[i];
ibCounter += indexCounts[i];
}
// Set the last two elements of each start-point array to one-past-the-last, so we don't have to test
// for being the 'last' count later on
componentStartPtr[vertexCounts.Count] = (uint)vertices.Count;
indexStartPtr[vertexCounts.Count] = (uint)indices.Count;
Dictionary <string, ModelHandle> modelNameToHandleMap = new Dictionary <string, ModelHandle>();
for (uint i = 0U; i < modelNames.Count; ++i)
{
modelNameToHandleMap.Add(modelNames[(int)i], new ModelHandle(cacheID, i));
}
isBuilt = true;
return(new GeometryCache(
vertexComponentBuffers,
vertexComponentSemantics,
vertexComponentFormats,
indexBuffer,
componentStartPointsAlloc,
indexStartPointsAlloc,
(uint)vertexCounts.Count,
typeof(TVertex),
cacheID,
modelNameToHandleMap,
orderFirst
));
}
}
public unsafe void TestGetModelBufferValues()
{
// Define variables and constants
const int FAKE_CACHE_ID = 1351616;
IVertexBuffer[] buffers = new IVertexBuffer[2];
buffers[0] = BufferFactory.NewVertexBuffer <Vector3>()
.WithInitialData(new[] { Vector3.ONE * 0f, Vector3.ONE * 1f, Vector3.ONE * 2f, Vector3.ONE * 3f, Vector3.ONE * 4f, Vector3.ONE * 5f })
.WithUsage(ResourceUsage.Immutable)
.Create();
buffers[1] = BufferFactory.NewVertexBuffer <Vector2>()
.WithInitialData(new[] { Vector2.ONE * 0f, Vector2.ONE * 1f, Vector2.ONE * 2f, Vector2.ONE * 3f, Vector2.ONE * 4f, Vector2.ONE * 5f })
.WithUsage(ResourceUsage.Immutable)
.Create();
string[] semantics = { "POSITION", "TEXCOORD" };
ResourceFormat[] formats = { ResourceFormat.R32G32B32Float, ResourceFormat.R32G32Float };
IndexBuffer indices = BufferFactory.NewIndexBuffer()
.WithInitialData(new uint[] { 0, 1, 2, 1, 2, 0, 2, 1, 0, 3, 4, 5, 4, 5, 3, 5, 3, 4, 5, 3, 4 })
.WithUsage(ResourceUsage.Immutable);
AlignedAllocation <uint> componentStartPointsAlloc = AlignedAllocation <uint> .AllocArray(7L, 3);
*(((uint *)componentStartPointsAlloc.AlignedPointer) + 0) = 0U;
*(((uint *)componentStartPointsAlloc.AlignedPointer) + 1) = 3U;
*(((uint *)componentStartPointsAlloc.AlignedPointer) + 2) = 6U;
AlignedAllocation <uint> indexStartPointsAlloc = AlignedAllocation <uint> .AllocArray(7L, 3);
*(((uint *)indexStartPointsAlloc.AlignedPointer) + 0) = 0U;
*(((uint *)indexStartPointsAlloc.AlignedPointer) + 1) = 9U;
*(((uint *)indexStartPointsAlloc.AlignedPointer) + 2) = 21U;
Dictionary <string, ModelHandle> modelNameMap = new Dictionary <string, ModelHandle>()
{
{ FAKE_CACHE_ID + "A", new ModelHandle(FAKE_CACHE_ID, 0U) },
{ FAKE_CACHE_ID + "B", new ModelHandle(FAKE_CACHE_ID, 1U) }
};
const uint NUM_MODELS = 2;
uint outVBStartIndex, outIBStartIndex, outVBCount, outIBCount;
// Set up context
GeometryCache cache = new GeometryCache(
buffers, semantics, formats,
indices, componentStartPointsAlloc, indexStartPointsAlloc,
NUM_MODELS, typeof(FakeVertex), FAKE_CACHE_ID, modelNameMap
);
// Execute
cache.GetModelBufferValues(0U, out outVBStartIndex, out outIBStartIndex, out outVBCount, out outIBCount);
// Assert outcome
Assert.AreEqual(0U, outVBStartIndex);
Assert.AreEqual(0U, outIBStartIndex);
Assert.AreEqual(3U, outVBCount);
Assert.AreEqual(9U, outIBCount);
cache.GetModelBufferValues(1U, out outVBStartIndex, out outIBStartIndex, out outVBCount, out outIBCount);
Assert.AreEqual(3U, outVBStartIndex);
Assert.AreEqual(9U, outIBStartIndex);
Assert.AreEqual(3U, outVBCount);
Assert.AreEqual(12U, outIBCount);
#if !DEVELOPMENT && !RELEASE
try {
cache.GetModelBufferValues(2U, out outVBStartIndex, out outIBStartIndex, out outVBCount, out outIBCount);
Assert.Fail();
}
catch (AssuranceFailedException) { }
#endif
cache.Dispose();
}
public unsafe void TestGetInputLayout()
{
// Define variables and constants
const int FAKE_CACHE_ID = 1351618;
IVertexBuffer[] buffers = new IVertexBuffer[2];
buffers[0] = BufferFactory.NewVertexBuffer <Vector3>()
.WithInitialData(new[] { Vector3.ONE * 0f, Vector3.ONE * 1f, Vector3.ONE * 2f, Vector3.ONE * 3f, Vector3.ONE * 4f, Vector3.ONE * 5f })
.WithUsage(ResourceUsage.Immutable)
.Create();
buffers[1] = BufferFactory.NewVertexBuffer <float>()
.WithInitialData(new[] { 0f, 1f, 2f, 3f, 4f, 5f })
.WithUsage(ResourceUsage.Immutable)
.Create();
string[] semantics = { "POSITION", "RANDOM_FLOATS" };
ResourceFormat[] formats = { ResourceFormat.R32G32B32Float, ResourceFormat.R32G32Float };
IndexBuffer indices = BufferFactory.NewIndexBuffer()
.WithInitialData(new uint[] { 0, 1, 2, 1, 2, 0, 2, 1, 0, 3, 4, 5, 4, 5, 3, 5, 3, 4, 5, 3, 4 })
.WithUsage(ResourceUsage.Immutable);
AlignedAllocation <uint> componentStartPointsAlloc = AlignedAllocation <uint> .AllocArray(7L, 3);
*(((uint *)componentStartPointsAlloc.AlignedPointer) + 0) = 0U;
*(((uint *)componentStartPointsAlloc.AlignedPointer) + 1) = 3U;
*(((uint *)componentStartPointsAlloc.AlignedPointer) + 2) = 6U;
AlignedAllocation <uint> indexStartPointsAlloc = AlignedAllocation <uint> .AllocArray(7L, 3);
*(((uint *)indexStartPointsAlloc.AlignedPointer) + 0) = 0U;
*(((uint *)indexStartPointsAlloc.AlignedPointer) + 1) = 9U;
*(((uint *)indexStartPointsAlloc.AlignedPointer) + 2) = 21U;
Dictionary <string, ModelHandle> modelNameMap = new Dictionary <string, ModelHandle>()
{
{ FAKE_CACHE_ID + "A", new ModelHandle(FAKE_CACHE_ID, 0U) },
{ FAKE_CACHE_ID + "B", new ModelHandle(FAKE_CACHE_ID, 1U) }
};
const uint NUM_MODELS = 2;
// Set up context
GeometryCache cache = new GeometryCache(
buffers, semantics, formats,
indices, componentStartPointsAlloc, indexStartPointsAlloc,
NUM_MODELS, typeof(Vector4), FAKE_CACHE_ID, modelNameMap
);
ConstantBuffer <Matrix> instanceCBuffer = BufferFactory.NewConstantBuffer <Matrix>().WithUsage(ResourceUsage.DiscardWrite);
VertexShader vs1 = new VertexShader(
@"Tests\SimpleVS.cso",
new VertexInputBinding(0U, "INSTANCE_TRANSFORM"),
new ConstantBufferBinding(0U, "CameraTransform", instanceCBuffer),
new VertexInputBinding(1U, "POSITION")
);
VertexShader vs2 = new VertexShader(
@"Tests\SimpleVS.cso",
new VertexInputBinding(0U, "INSTANCE_TRANSFORM"),
new ConstantBufferBinding(0U, "CameraTransform", instanceCBuffer),
new VertexInputBinding(1U, "RANDOM_FLOATS"),
new VertexInputBinding(2U, "POSITION")
);
VertexShader vs3 = new VertexShader(
@"Tests\SimpleVS.cso",
new VertexInputBinding(0U, "INSTANCE"),
new ConstantBufferBinding(0U, "VPTransform", instanceCBuffer),
new VertexInputBinding(1U, "TEXCOORD")
);
// Execute
GeometryInputLayout inputLayout1 = cache.GetInputLayout(vs1);
GeometryInputLayout inputLayout2 = cache.GetInputLayout(vs2);
try {
cache.GetInputLayout(vs3);
Assert.Fail();
}
catch (InvalidOperationException) { }
// Assert outcome
Assert.AreEqual(cache, inputLayout1.AssociatedCache);
Assert.AreEqual(cache, inputLayout2.AssociatedCache);
Assert.AreEqual(vs1, inputLayout1.AssociatedShader);
Assert.AreEqual(vs2, inputLayout2.AssociatedShader);
KeyValuePair <VertexInputBinding, IVertexBuffer>[] boundCompBuffers = inputLayout1.BoundComponentBuffers;
Assert.AreEqual(buffers[0], boundCompBuffers.First(kvp => kvp.Key == vs1.GetBindingByIdentifier("POSITION")).Value);
Assert.IsFalse(boundCompBuffers.Any(kvp => kvp.Value == buffers[1]));
boundCompBuffers = inputLayout2.BoundComponentBuffers;
Assert.AreEqual(buffers[0], boundCompBuffers.First(kvp => kvp.Key == vs2.GetBindingByIdentifier("POSITION")).Value);
Assert.AreEqual(buffers[1], boundCompBuffers.First(kvp => kvp.Key == vs2.GetBindingByIdentifier("RANDOM_FLOATS")).Value);
Assert.AreEqual(inputLayout1, cache.GetInputLayout(vs1));
Assert.AreEqual(inputLayout2, cache.GetInputLayout(vs2));
cache.Dispose();
inputLayout2.Dispose();
inputLayout1.Dispose();
vs1.Dispose();
vs2.Dispose();
vs3.Dispose();
instanceCBuffer.Dispose();
indices.Dispose();
buffers[1].Dispose();
buffers[0].Dispose();
}
