public unsafe void SetMaterialConstantValue <TValue>(ConstantBufferBinding binding, TValue value) where TValue : struct
{
Assure.True(Shader.ContainsBinding(binding), "Binding is not attributed to the FragmentShader set for this material.");
Assure.True(
binding.GetBoundResource() is ConstantBuffer <TValue>,
"Expected a resource of type 'ConstantBuffer<" + typeof(TValue).Name + ">' set at " +
binding + ", but instead found " + binding.GetBoundResource().ToStringNullSafe("no binding") + "."
);
Assure.True(
binding.GetBoundResource().CanDiscardWrite,
"Given shader resource (" + binding.GetBoundResource() + ") must have discard-write capability."
);
if (cbufferValuePtrs.ContainsKey(binding))
{
Marshal.FreeHGlobal(cbufferValuePtrs[binding]);
}
IntPtr valuePtr = Marshal.AllocHGlobal(new IntPtr(binding.BufferSizeBytes));
UnsafeUtils.WriteGenericToPtr(valuePtr, value, binding.BufferSizeBytes);
using (RenderingModule.RenderStateBarrier.AcquirePermit(withLock: instanceMutationLock)) {
cbufferValuePtrs[binding] = valuePtr;
fragmentShaderResources.SetValue(binding, valuePtr);
}
}
public void TestBindingMethods()
{
ConstantBuffer <Matrix> testBuffer = BufferFactory.NewConstantBuffer <Matrix>().WithUsage(ResourceUsage.DiscardWrite);
IShaderResourceBinding[] bindingArr =
{
new TextureSamplerBinding(0U, "TS0"),
new TextureSamplerBinding(1U, "TS1"),
new TextureSamplerBinding(5U, "TS5"),
new ResourceViewBinding(0U, "RV0"),
new ResourceViewBinding(2U, "RV2"),
new ConstantBufferBinding(3U, "CB3", testBuffer)
};
Shader shader = new FragmentShader(@"Tests\SimpleFS.cso", bindingArr);
Assert.AreEqual(bindingArr[0], shader.GetBindingByIdentifier("TS0"));
Assert.AreEqual(bindingArr[1], shader.GetBindingByIdentifier("TS1"));
Assert.AreEqual(bindingArr[2], shader.GetBindingByIdentifier("TS5"));
Assert.AreEqual(bindingArr[3], shader.GetBindingByIdentifier("RV0"));
Assert.AreEqual(bindingArr[4], shader.GetBindingByIdentifier("RV2"));
Assert.AreEqual(bindingArr[5], shader.GetBindingByIdentifier("CB3"));
Assert.IsTrue(shader.ContainsBinding("TS0"));
Assert.IsTrue(shader.ContainsBinding("TS1"));
Assert.IsFalse(shader.ContainsBinding("TS2"));
Assert.IsTrue(shader.ContainsBinding(bindingArr[0]));
Assert.IsTrue(shader.ContainsBinding(bindingArr[1]));
Assert.IsFalse(shader.ContainsBinding(new TextureSamplerBinding(0U, "TS0")));
shader.Dispose();
testBuffer.Dispose();
}
