public void TestMipDimensions()
{
// Define variables and constants
const uint ORIGINAL_WIDTH_TX = 1 << 10;
Texture1DArray <TexelFormat.RGBA32UInt> textureArray = TextureFactory.NewTexture1D <TexelFormat.RGBA32UInt>()
.WithWidth(ORIGINAL_WIDTH_TX)
.WithMipAllocation(true)
.WithUsage(ResourceUsage.Write)
.CreateArray(10);
// Set up context
// Execute
for (int i = 0; ORIGINAL_WIDTH_TX >> i > 0; ++i)
{
Assert.AreEqual(ORIGINAL_WIDTH_TX >> i, textureArray.MipWidth((uint)i));
}
#if !DEVELOPMENT && !RELEASE
try {
textureArray.MipWidth(10000U);
Assert.Fail();
}
catch (AssuranceFailedException) { }
#endif
// Assert outcome
textureArray.Dispose();
}
public void TestCopyTo()
{
LosgapSystem.InvokeOnMaster(() => {
// Define variables and constants
const uint MIP0_WIDTH = 512U;
const uint ARRAY_LENGTH = 10U;
Texture1DArray <TexelFormat.RGBA32UInt> srcArray = TextureFactory.NewTexture1D <TexelFormat.RGBA32UInt>()
.WithDynamicDetail(false)
.WithInitialData(
Enumerable.Repeat(
Enumerable.Range(0, (int)TextureUtils.GetSizeTexels(true, MIP0_WIDTH))
.Select(i => (uint)i)
.Select(i => new TexelFormat.RGBA32UInt {
R = i, G = i * 2, B = i * 3, A = i * 4
}),
(int)ARRAY_LENGTH
)
.Flatten()
.ToArray()
)
.WithMipAllocation(true)
.WithMipGenerationTarget(false)
.WithPermittedBindings(GPUBindings.ReadableShaderResource)
.WithUsage(ResourceUsage.Immutable)
.WithMipAllocation(true)
.WithUsage(ResourceUsage.Write)
.WithWidth(MIP0_WIDTH)
.CreateArray(ARRAY_LENGTH);
// Set up context
Texture1DArray <TexelFormat.RGBA32UInt> dstArray = srcArray.Clone()
.WithUsage(ResourceUsage.StagingRead)
.WithPermittedBindings(GPUBindings.None)
.CreateArray(srcArray.ArrayLength);
srcArray.CopyTo(dstArray);
var data = dstArray[4].ReadAll();
// Execute
for (int i = 0, curMipIndex = 0; i < data.Length; ++curMipIndex)
{
for (int j = 0; j < dstArray.MipWidth((uint)curMipIndex); ++j, ++i)
{
Assert.AreEqual((uint)i, data[i].R);
Assert.AreEqual((uint)i * 2, data[i].G);
Assert.AreEqual((uint)i * 3, data[i].B);
Assert.AreEqual((uint)i * 4, data[i].A);
}
}
// Assert outcome
srcArray.Dispose();
dstArray.Dispose();
});
}
public void TestArrayElementsAreIdentical()
{
// Define variables and constants
const uint MIP0_WIDTH = 512U;
const uint ARRAY_LENGTH = 10U;
Texture1DArray <TexelFormat.RGBA32UInt> srcArray = TextureFactory.NewTexture1D <TexelFormat.RGBA32UInt>()
.WithDynamicDetail(true)
.WithInitialData(
Enumerable.Repeat(
Enumerable.Range(0, (int)TextureUtils.GetSizeTexels(true, MIP0_WIDTH))
.Select(i => (uint)i)
.Select(i => new TexelFormat.RGBA32UInt {
R = i, G = i * 2, B = i * 3, A = i * 4
}),
(int)ARRAY_LENGTH
)
.Flatten()
.ToArray()
)
.WithMipAllocation(true)
.WithMipGenerationTarget(false)
.WithPermittedBindings(GPUBindings.ReadableShaderResource)
.WithUsage(ResourceUsage.Immutable)
.WithMipAllocation(true)
.WithUsage(ResourceUsage.Write)
.WithWidth(MIP0_WIDTH)
.CreateArray(ARRAY_LENGTH);
// Set up context
// Execute
// Assert outcome
foreach (Texture1D <TexelFormat.RGBA32UInt> arrayElement in srcArray)
{
Assert.AreEqual(srcArray.IsGlobalDetailTarget, arrayElement.IsGlobalDetailTarget);
Assert.AreEqual(srcArray.IsMipGenTarget, arrayElement.IsMipGenTarget);
Assert.AreEqual(srcArray.IsMipmapped, arrayElement.IsMipmapped);
Assert.AreEqual(srcArray.NumMips, arrayElement.NumMips);
Assert.AreEqual(srcArray.PermittedBindings, arrayElement.PermittedBindings);
Assert.AreEqual(srcArray.Size / srcArray.ArrayLength, arrayElement.Size);
Assert.AreEqual(srcArray.TexelFormat, arrayElement.TexelFormat);
Assert.AreEqual(srcArray.TexelSizeBytes, arrayElement.TexelSizeBytes);
Assert.AreEqual(srcArray.Usage, arrayElement.Usage);
Assert.AreEqual(srcArray.Width, arrayElement.Width);
}
srcArray.Dispose();
}
public void TestCloneWithInitData()
{
// Define variables and constants
const uint MIP0_WIDTH = 512U;
const uint ARRAY_LENGTH = 10U;
Texture1DArray <TexelFormat.RGBA32UInt> srcArray = TextureFactory.NewTexture1D <TexelFormat.RGBA32UInt>()
.WithDynamicDetail(false)
.WithInitialData(
Enumerable.Range(0, (int)TextureUtils.GetSizeTexels(true, MIP0_WIDTH) * (int)ARRAY_LENGTH)
.Select(i => (uint)i)
.Select(i => new TexelFormat.RGBA32UInt {
R = i, G = i * 2, B = i * 3, A = i * 4
})
.ToArray()
)
.WithMipAllocation(true)
.WithMipGenerationTarget(false)
.WithPermittedBindings(GPUBindings.None)
.WithUsage(ResourceUsage.StagingRead)
.WithWidth(MIP0_WIDTH)
.CreateArray(ARRAY_LENGTH);
// Set up context
// Execute
var cloneArray = srcArray.Clone(true).CreateArray(ARRAY_LENGTH);
// Assert outcome
uint curVal = 0U;
foreach (Texture1D <TexelFormat.RGBA32UInt> texture1D in cloneArray)
{
TexelFormat.RGBA32UInt[] texData = texture1D.ReadAll();
for (int i = 0; i < texData.Length; i++)
{
Assert.AreEqual(curVal, texData[i].R);
Assert.AreEqual(curVal * 2, texData[i].G);
Assert.AreEqual(curVal * 3, texData[i].B);
Assert.AreEqual(curVal * 4, texData[i].A);
++curVal;
}
}
cloneArray.Dispose();
srcArray.Dispose();
}
/// <summary>
/// Creates an array of <see cref="Texture1D{TTexel}"/>s; encapsulated as a <see cref="Texture1DArray{TTexel}"/> object.
/// By grouping textures that are used together frequently in to an array, you can gain a performance improvement.
/// You can not create an array of textures with usage '<see cref="ResourceUsage.DiscardWrite"/>'.
/// </summary>
/// <param name="numTextures">The number of textures in the array. Must not be zero.</param>
/// <returns>A new <see cref="Texture1DArray{TTexel}"/>.</returns>
public Texture1DArray <TTexel> CreateArray(uint numTextures)
{
Assure.False(Usage == ResourceUsage.DiscardWrite, "Can not create an array of discard-write textures.");
Texture1DArray <TTexel> result = new Texture1DArray <TTexel>(
CreateTexture1D(numTextures, InitialData),
Usage,
TextureUtils.GetSize(texelSizeBytes, mipAllocation, width) * numTextures,
permittedBindings,
numTextures,
mipGenerationTarget,
dynamicDetail,
width,
texelSizeBytes,
mipAllocation,
numMips
);
if (dynamicDetail)
{
RenderingModule.DynamicDetailTextures.Value.Add(new WeakReference <IResource>(result));
}
return(result);
}
