public override ByteSize GetSize(uint mipIndex)
{
return(TextureUtils.GetSize(TexelSizeBytes, false, MipWidth(mipIndex)));
}
public override uint GetSizeTexels(uint mipIndex)
{
return(TextureUtils.GetSizeTexels(false, MipWidth(mipIndex)));
}
public unsafe ITexture2D Create()
{
Assure.NotNull(filePath, "You must supply a file path to load a texture.");
string fullFilePath = Path.Combine(Path.GetFullPath(LosgapSystem.InstallationDirectory.ToString()), filePath);
Assure.True(IOUtils.IsValidFilePath(fullFilePath), "Invalid file path: " + fullFilePath);
Assure.True(File.Exists(fullFilePath), "File does not exist: " + fullFilePath);
Assure.False(
(usage == ResourceUsage.Immutable || usage == ResourceUsage.DiscardWrite) && permittedBindings == GPUBindings.None,
"An immutable or discard-write resource with no permitted bindings is useless."
);
Assure.False(
usage.GetUsage() == 0x3 && permittedBindings != GPUBindings.None,
"Staging resources can not be bound to the pipeline."
);
Assure.False((usage == ResourceUsage.DiscardWrite || usage == ResourceUsage.Immutable) &&
((permittedBindings & GPUBindings.RenderTarget) > 0 ||
(permittedBindings & GPUBindings.DepthStencilTarget) > 0 ||
(permittedBindings & GPUBindings.WritableShaderResource) > 0),
"Can not bind an immutable or discard-write texture as a render target or depth stencil target, or as a GPU-writeable shader resource."
);
Texture2DResourceHandle outResHandle;
uint outWidth;
uint outHeight;
ResourceFormat outFormat;
InteropUtils.CallNative(NativeMethods.ResourceFactory_LoadTexture2D,
RenderingModule.Device,
fullFilePath,
(InteropBool)mipAllocation,
usage.GetUsage(),
usage.GetCPUUsage(),
(PipelineBindings)permittedBindings,
(InteropBool)mipGenerationTarget,
(InteropBool)dynamicDetail,
(IntPtr)(&outResHandle),
(IntPtr)(&outWidth),
(IntPtr)(&outHeight),
(IntPtr)(&outFormat)
).ThrowOnFailure();
Type texelFormat = null;
foreach (Type texelType in TexelFormat.AllFormats.Keys.Except(typeof(TexelFormat.RenderTarget), typeof(TexelFormat.DepthStencil)))
{
if ((ResourceFormat)texelType.GetCustomAttribute <TexelFormatMetadataAttribute>().ResourceFormatIndex == outFormat)
{
texelFormat = texelType;
break;
}
}
if (texelFormat == null)
{
throw new InvalidOperationException("The format for the loaded texture (" + outFormat + ") is not supported.");
}
Type tex2DType = typeof(Texture2D <>).MakeGenericType(texelFormat);
uint texelSizeBytes = texelFormat.GetCustomAttribute <TexelFormatMetadataAttribute>().FormatSizeBytes;
try {
return(Activator.CreateInstance(
tex2DType, BindingFlags.NonPublic | BindingFlags.Instance, null,
new object[] {
(ResourceHandle)outResHandle,
usage,
(ByteSize)(outWidth * outHeight * texelSizeBytes),
permittedBindings,
false,
mipGenerationTarget,
dynamicDetail,
outWidth,
outHeight,
texelSizeBytes,
mipAllocation,
mipAllocation ? TextureUtils.GetNumMips(outWidth, outHeight) : 1U,
0U,
false
},
CultureInfo.InvariantCulture
) as ITexture2D);
}
catch (Exception e) {
throw new InvalidOperationException("Could not load texture as a " + texelFormat.Name + " due to an instantiation error.", e);
}
}
public uint MipWidth(uint mipIndex)
{
Assure.LessThan(mipIndex, NumMips, "Mip index out of bounds.");
return(TextureUtils.GetDimensionForMipLevel(width, mipIndex));
}
public void TestCreateDefaultViewForTextures()
{
const uint TEST_TEXTURE_WIDTH = 128U;
const uint TEST_TEXTURE_HEIGHT = 64U;
const uint TEST_TEXTURE_DEPTH = 32U;
const uint TEST_ARRAY_LEN = 10U;
IResource testResource;
ShaderResourceView testSRV;
testResource = TextureFactory.NewTexture1D <TexelFormat.RGB32Float>()
.WithDynamicDetail(false)
.WithMipAllocation(true)
.WithMipGenerationTarget(false)
.WithPermittedBindings(GPUBindings.ReadableShaderResource)
.WithUsage(ResourceUsage.Write)
.WithWidth(TEST_TEXTURE_WIDTH)
.Create();
testSRV = ((ITexture)testResource).CreateView();
Assert.IsFalse(testSRV.ResourceOrViewDisposed);
Assert.AreEqual(testResource, testSRV.Resource);
Assert.AreEqual(0U, ((ShaderTextureResourceView)testSRV).FirstMipIndex);
Assert.AreEqual(TextureUtils.GetNumMips(TEST_TEXTURE_WIDTH), ((ShaderTextureResourceView)testSRV).NumMips);
testResource.Dispose();
Assert.IsTrue(testSRV.ResourceOrViewDisposed);
testSRV.Dispose();
Assert.IsTrue(testSRV.IsDisposed);
testResource = TextureFactory.NewTexture2D <TexelFormat.RGB32Float>()
.WithDynamicDetail(false)
.WithMipAllocation(true)
.WithMipGenerationTarget(false)
.WithPermittedBindings(GPUBindings.ReadableShaderResource)
.WithUsage(ResourceUsage.Write)
.WithWidth(TEST_TEXTURE_WIDTH)
.WithHeight(TEST_TEXTURE_HEIGHT)
.Create();
testSRV = ((ITexture)testResource).CreateView();
Assert.IsFalse(testSRV.ResourceOrViewDisposed);
Assert.AreEqual(testResource, testSRV.Resource);
Assert.AreEqual(0U, ((ShaderTextureResourceView)testSRV).FirstMipIndex);
Assert.AreEqual(TextureUtils.GetNumMips(TEST_TEXTURE_WIDTH, TEST_TEXTURE_HEIGHT), ((ShaderTextureResourceView)testSRV).NumMips);
testResource.Dispose();
Assert.IsTrue(testSRV.ResourceOrViewDisposed);
testSRV.Dispose();
Assert.IsTrue(testSRV.IsDisposed);
testResource = TextureFactory.NewTexture3D <TexelFormat.RGB32Float>()
.WithDynamicDetail(false)
.WithMipAllocation(true)
.WithMipGenerationTarget(false)
.WithPermittedBindings(GPUBindings.ReadableShaderResource)
.WithUsage(ResourceUsage.Write)
.WithWidth(TEST_TEXTURE_WIDTH)
.WithHeight(TEST_TEXTURE_HEIGHT)
.WithDepth(TEST_TEXTURE_DEPTH)
.Create();
testSRV = ((ITexture)testResource).CreateView();
Assert.IsFalse(testSRV.ResourceOrViewDisposed);
Assert.AreEqual(testResource, testSRV.Resource);
Assert.AreEqual(0U, ((ShaderTextureResourceView)testSRV).FirstMipIndex);
Assert.AreEqual(TextureUtils.GetNumMips(TEST_TEXTURE_WIDTH, TEST_TEXTURE_HEIGHT, TEST_TEXTURE_DEPTH), ((ShaderTextureResourceView)testSRV).NumMips);
testResource.Dispose();
Assert.IsTrue(testSRV.ResourceOrViewDisposed);
testSRV.Dispose();
Assert.IsTrue(testSRV.IsDisposed);
testResource = TextureFactory.NewTexture1D <TexelFormat.RGB32Float>()
.WithDynamicDetail(false)
.WithMipAllocation(true)
.WithMipGenerationTarget(false)
.WithPermittedBindings(GPUBindings.ReadableShaderResource)
.WithUsage(ResourceUsage.Write)
.WithWidth(TEST_TEXTURE_WIDTH)
.CreateArray(TEST_ARRAY_LEN);
testSRV = ((ITextureArray)testResource).CreateView();
Assert.IsFalse(testSRV.ResourceOrViewDisposed);
Assert.AreEqual(testResource, testSRV.Resource);
Assert.AreEqual(0U, ((ShaderTextureArrayResourceView)testSRV).FirstMipIndex);
Assert.AreEqual(TextureUtils.GetNumMips(TEST_TEXTURE_WIDTH), ((ShaderTextureArrayResourceView)testSRV).NumMips);
Assert.AreEqual(0U, ((ShaderTextureArrayResourceView)testSRV).FirstArrayElementIndex);
Assert.AreEqual(TEST_ARRAY_LEN, ((ShaderTextureArrayResourceView)testSRV).NumArrayElements);
testResource.Dispose();
Assert.IsTrue(testSRV.ResourceOrViewDisposed);
testSRV.Dispose();
Assert.IsTrue(testSRV.IsDisposed);
testResource = TextureFactory.NewTexture2D <TexelFormat.RGB32Float>()
.WithDynamicDetail(false)
.WithMipAllocation(true)
.WithMipGenerationTarget(false)
.WithPermittedBindings(GPUBindings.ReadableShaderResource)
.WithUsage(ResourceUsage.Write)
.WithWidth(TEST_TEXTURE_WIDTH)
.WithHeight(TEST_TEXTURE_HEIGHT)
.CreateArray(TEST_ARRAY_LEN);
testSRV = ((ITextureArray)testResource).CreateView();
Assert.IsFalse(testSRV.ResourceOrViewDisposed);
Assert.AreEqual(testResource, testSRV.Resource);
Assert.AreEqual(0U, ((ShaderTextureArrayResourceView)testSRV).FirstMipIndex);
Assert.AreEqual(TextureUtils.GetNumMips(TEST_TEXTURE_WIDTH, TEST_TEXTURE_HEIGHT), ((ShaderTextureArrayResourceView)testSRV).NumMips);
Assert.AreEqual(0U, ((ShaderTextureArrayResourceView)testSRV).FirstArrayElementIndex);
Assert.AreEqual(TEST_ARRAY_LEN, ((ShaderTextureArrayResourceView)testSRV).NumArrayElements);
testResource.Dispose();
Assert.IsTrue(testSRV.ResourceOrViewDisposed);
testSRV.Dispose();
Assert.IsTrue(testSRV.IsDisposed);
}
private unsafe Texture1DResourceHandle CreateTexture1D(uint arrayLen, ArraySlice <TTexel>?initialData)
{
Assure.True(Usage != ResourceUsage.Immutable || initialData != null, "You must supply initial data to an immutable resource.");
Assure.False(
(Usage == ResourceUsage.Immutable || Usage == ResourceUsage.DiscardWrite) && permittedBindings == GPUBindings.None,
"An immutable or discard-write resource with no permitted bindings is useless."
);
Assure.False(
Usage.GetUsage() == 0x3 && permittedBindings != GPUBindings.None,
"Staging resources can not be bound to the pipeline."
);
Assure.False((Usage == ResourceUsage.DiscardWrite || Usage == ResourceUsage.Immutable) &&
((permittedBindings & GPUBindings.RenderTarget) > 0 ||
(permittedBindings & GPUBindings.DepthStencilTarget) > 0 ||
(permittedBindings & GPUBindings.WritableShaderResource) > 0),
"Can not bind an immutable or discard-write texture as a render target or depth stencil target, or as a GPU-writeable shader resource."
);
Assure.GreaterThan(arrayLen, 0U, "Can not create an array of 0 textures.");
Assure.GreaterThan(width, 0U, "Please specify a width for the texture.");
Assure.False(
mipAllocation && !MathUtils.IsPowerOfTwo(width),
"Can not create mipmapped texture with any non-power-of-two (NPOT) dimension. Dimensions: " + width + "."
);
Assure.False(
mipAllocation && Usage == ResourceUsage.DiscardWrite,
"Can not allocate mips on a discard-write texture."
);
Assure.False(
mipGenerationTarget && !mipAllocation,
"Can not generate mips without allocating space for them."
);
Assure.False(
mipGenerationTarget &&
((permittedBindings & GPUBindings.RenderTarget) == 0x0 || (permittedBindings & GPUBindings.ReadableShaderResource) == 0x0),
"To make a texture a viable mip generation target, it must be created with the RenderTarget and ReadableShaderResource GPU bindings."
);
Assure.False(
mipGenerationTarget && initialData != null,
"Can not supply initial data to a mip generation target."
);
Assure.True(
initialData == null ||
(initialData.Value.Length == TextureUtils.GetSizeTexels(mipAllocation, width) * arrayLen),
"Initial data is of incorrect length (" + (initialData != null ? initialData.Value.Length : 0) + ") for this resource. " +
"It should have a length of: " + TextureUtils.GetSizeTexels(mipAllocation, width) * arrayLen + "."
);
Assure.False(dynamicDetail && Usage.GetUsage() == 0x3, "Can not create a dynamic-detail staging resource.");
Assure.False(
(permittedBindings & GPUBindings.DepthStencilTarget) == GPUBindings.DepthStencilTarget &&
texelFormat != TexelFormat.DSV_FORMAT_CODE,
"Can not create a depth-stencil target with any texel format other than " + typeof(TexelFormat.DepthStencil).Name + "."
);
Texture1DResourceHandle outResourceHandle;
GCHandle?pinnedInitData = null;
GCHandle?pinnedDataHandle = null;
IntPtr initialDataPtr = IntPtr.Zero;
InitialResourceDataDesc[] dataArr = null;
if (initialData != null)
{
pinnedInitData = GCHandle.Alloc(initialData.Value.ContainingArray, GCHandleType.Pinned);
dataArr = InitialResourceDataDesc.CreateDataArr(
pinnedInitData.Value.AddrOfPinnedObject() + (int)(initialData.Value.Offset * texelSizeBytes),
arrayLen,
numMips,
width,
1U,
1U,
texelSizeBytes
);
pinnedDataHandle = GCHandle.Alloc(dataArr, GCHandleType.Pinned);
initialDataPtr = pinnedDataHandle.Value.AddrOfPinnedObject();
}
try {
InteropUtils.CallNative(NativeMethods.ResourceFactory_CreateTexture1DArray,
RenderingModule.Device,
width,
arrayLen,
(InteropBool)mipAllocation,
texelFormat,
Usage.GetUsage(),
Usage.GetCPUUsage(),
(PipelineBindings)permittedBindings,
(InteropBool)mipGenerationTarget,
(InteropBool)dynamicDetail,
initialDataPtr,
dataArr != null ? (uint)dataArr.Length : 0U,
(IntPtr)(&outResourceHandle)
).ThrowOnFailure();
}
finally {
if (pinnedDataHandle != null)
{
pinnedDataHandle.Value.Free();
}
if (pinnedInitData != null)
{
pinnedInitData.Value.Free();
}
}
return(outResourceHandle);
}
public void TestCreationWithInitialData()
{
// Define variables and constants
const uint TEXTURE_WIDTH = 1 << 6;
Texture1DBuilder <TexelFormat.RGBA8UInt> texBuilder = TextureFactory.NewTexture1D <TexelFormat.RGBA8UInt>()
.WithUsage(ResourceUsage.StagingRead)
.WithPermittedBindings(GPUBindings.None)
.WithWidth(TEXTURE_WIDTH);
TexelFormat.RGBA8UInt[] initialDataA = new TexelFormat.RGBA8UInt[TEXTURE_WIDTH];
TexelFormat.RGBA8UInt[] initialDataB = new TexelFormat.RGBA8UInt[(TEXTURE_WIDTH << 1) - 1];
Texture1D <TexelFormat.RGBA8UInt> testTextureA, testTextureB;
TexelArray1D <TexelFormat.RGBA8UInt> texAData;
TexelArray1D <TexelFormat.RGBA8UInt>[] texBData = new TexelArray1D <TexelFormat.RGBA8UInt> [TextureUtils.GetNumMips(TEXTURE_WIDTH)];
// Set up context
for (uint i = 0; i < initialDataA.Length; ++i)
{
initialDataA[i].R = (byte)i;
initialDataA[i].G = (byte)(i * 2);
initialDataA[i].B = (byte)(i * 3);
initialDataA[i].A = (byte)(i * 4);
}
testTextureA = texBuilder.WithInitialData(initialDataA).Create();
uint mipWidth = TEXTURE_WIDTH;
uint texelIndex = 0U;
while (mipWidth > 0)
{
for (uint i = 0; i < mipWidth; ++i, ++texelIndex)
{
initialDataB[texelIndex].R = (byte)(i + mipWidth);
initialDataB[texelIndex].G = (byte)(i * 2 + mipWidth);
initialDataB[texelIndex].B = (byte)(i * 3 + mipWidth);
initialDataB[texelIndex].A = (byte)(i * 4 + mipWidth);
}
mipWidth >>= 1;
}
testTextureB = texBuilder.WithMipAllocation(true).WithInitialData(initialDataB).Create();
// Execute
texAData = testTextureA.Read(0U);
for (uint i = 0; i < texBData.Length; ++i)
{
texBData[i] = testTextureB.Read(i);
}
// Assert outcome
for (uint i = 0; i < texAData.Width; ++i)
{
Assert.AreEqual((byte)i, initialDataA[i].R);
Assert.AreEqual((byte)(i * 2), initialDataA[i].G);
Assert.AreEqual((byte)(i * 3), initialDataA[i].B);
Assert.AreEqual((byte)(i * 4), initialDataA[i].A);
}
mipWidth = TEXTURE_WIDTH;
texelIndex = 0U;
while (mipWidth > 0)
{
for (uint i = 0; i < mipWidth; ++i, ++texelIndex)
{
Assert.AreEqual((byte)(i + mipWidth), initialDataB[texelIndex].R);
Assert.AreEqual((byte)(i * 2 + mipWidth), initialDataB[texelIndex].G);
Assert.AreEqual((byte)(i * 3 + mipWidth), initialDataB[texelIndex].B);
Assert.AreEqual((byte)(i * 4 + mipWidth), initialDataB[texelIndex].A);
}
mipWidth >>= 1;
}
testTextureA.Dispose();
testTextureB.Dispose();
}
public void TestCreationParameters()
{
// Define variables and constants
var defaultBuilder = TextureFactory.NewTexture1D <TexelFormat.RGBA32UInt>().WithUsage(ResourceUsage.DiscardWrite).WithWidth(100);
var withStagingUsage = defaultBuilder.WithUsage(ResourceUsage.StagingReadWrite).WithPermittedBindings(GPUBindings.None);
var withReadWriteBindings = defaultBuilder.WithUsage(ResourceUsage.Write).WithPermittedBindings(GPUBindings.ReadableShaderResource | GPUBindings.WritableShaderResource);
var withDifferentFormat = defaultBuilder.WithTexelFormat <TexelFormat.Int8>();
var withWidth300 = defaultBuilder.WithWidth(300);
var withMipAllocation = defaultBuilder.WithUsage(ResourceUsage.Write).WithWidth(1 << 9).WithMipAllocation(true);
var withDynDetail = withMipAllocation.WithDynamicDetail(true);
var withMipGen = withMipAllocation
.WithUsage(ResourceUsage.Write)
.WithPermittedBindings(GPUBindings.RenderTarget | GPUBindings.ReadableShaderResource)
.WithMipGenerationTarget(true)
.WithTexelFormat <TexelFormat.RGBA8UNorm>();
// Set up context
// Execute
// Assert outcome
ITexture1D tex = withStagingUsage.Create();
Assert.AreEqual(ResourceUsage.StagingReadWrite, tex.Usage);
tex.Dispose();
tex = withReadWriteBindings.Create();
Assert.AreEqual(GPUBindings.ReadableShaderResource | GPUBindings.WritableShaderResource, tex.PermittedBindings);
tex.Dispose();
tex = withDifferentFormat.Create();
Assert.AreEqual(typeof(TexelFormat.Int8), tex.TexelFormat);
tex.Dispose();
tex = withWidth300.Create();
Assert.AreEqual(300U, tex.Width);
tex.Dispose();
tex = withMipAllocation.Create();
Assert.AreEqual(TextureUtils.GetNumMips(1 << 9), tex.NumMips);
tex.Dispose();
tex = withDynDetail.Create();
Assert.AreEqual(true, tex.IsGlobalDetailTarget);
tex.Dispose();
tex = withMipGen.Create();
Assert.AreEqual(true, tex.IsMipGenTarget);
tex.Dispose();
ITexture1DArray ta = withStagingUsage.CreateArray(10);
Assert.AreEqual(ResourceUsage.StagingReadWrite, ta.Usage);
ta.Dispose();
ta = withReadWriteBindings.CreateArray(10);
Assert.AreEqual(GPUBindings.ReadableShaderResource | GPUBindings.WritableShaderResource, ta.PermittedBindings);
ta.Dispose();
ta = withDifferentFormat.WithUsage(ResourceUsage.Write).CreateArray(10);
Assert.AreEqual(typeof(TexelFormat.Int8), ta.TexelFormat);
ta.Dispose();
ta = withWidth300.WithUsage(ResourceUsage.Write).CreateArray(10);
Assert.AreEqual(300U, ta.Width);
ta.Dispose();
ta = withMipAllocation.CreateArray(10);
Assert.AreEqual(TextureUtils.GetNumMips(1 << 9), ta.NumMips);
ta.Dispose();
ta = withDynDetail.CreateArray(10);
Assert.AreEqual(true, ta.IsGlobalDetailTarget);
ta.Dispose();
ta = withMipGen.CreateArray(10);
Assert.AreEqual(true, ta.IsMipGenTarget);
ta.Dispose();
ta = defaultBuilder.WithUsage(ResourceUsage.Immutable).WithInitialData(new TexelFormat.RGBA32UInt[1000]).CreateArray(10);
Assert.AreEqual(10U, ta.ArrayLength);
ta.Dispose();
#if !DEVELOPMENT && !RELEASE
try {
TextureFactory.NewTexture1D <TexelFormat.Float32>()
.WithUsage(ResourceUsage.Immutable)
.WithInitialData(null)
.Create();
Assert.Fail();
}
catch (AssuranceFailedException) { }
try {
TextureFactory.NewTexture1D <TexelFormat.Float32>()
.WithUsage(ResourceUsage.DiscardWrite)
.WithPermittedBindings(GPUBindings.None)
.Create();
Assert.Fail();
}
catch (AssuranceFailedException) { }
try {
TextureFactory.NewTexture1D <TexelFormat.Float32>()
.WithUsage(ResourceUsage.StagingRead)
.WithPermittedBindings(GPUBindings.ReadableShaderResource)
.Create();
Assert.Fail();
}
catch (AssuranceFailedException) { }
try {
TextureFactory.NewTexture1D <TexelFormat.Float32>()
.WithWidth(0U)
.Create();
Assert.Fail();
}
catch (AssuranceFailedException) { }
try {
TextureFactory.NewTexture1D <TexelFormat.Float32>()
.WithMipAllocation(true)
.WithWidth(140)
.Create();
Assert.Fail();
}
catch (AssuranceFailedException) { }
try {
TextureFactory.NewTexture1D <TexelFormat.Float32>()
.WithMipAllocation(true)
.WithMipGenerationTarget(true)
.WithWidth(1 << 4)
.WithUsage(ResourceUsage.Write)
.WithPermittedBindings(GPUBindings.None)
.Create();
Assert.Fail();
}
catch (AssuranceFailedException) { }
try {
TextureFactory.NewTexture1D <TexelFormat.Float32>()
.WithMipAllocation(false)
.WithMipGenerationTarget(true)
.WithWidth(1 << 4)
.WithUsage(ResourceUsage.Write)
.WithPermittedBindings(GPUBindings.RenderTarget | GPUBindings.ReadableShaderResource)
.Create();
Assert.Fail();
}
catch (AssuranceFailedException) { }
try {
TextureFactory.NewTexture1D <TexelFormat.Float32>()
.WithMipAllocation(true)
.WithMipGenerationTarget(true)
.WithWidth(1 << 4)
.WithUsage(ResourceUsage.Write)
.WithPermittedBindings(GPUBindings.RenderTarget | GPUBindings.ReadableShaderResource)
.WithInitialData(new TexelFormat.Float32[(1 << 5) - 1])
.Create();
Assert.Fail();
}
catch (AssuranceFailedException) { }
try {
TextureFactory.NewTexture1D <TexelFormat.Float32>()
.WithMipAllocation(true)
.WithWidth(1 << 4)
.WithUsage(ResourceUsage.Immutable)
.WithPermittedBindings(GPUBindings.ReadableShaderResource)
.WithInitialData(new TexelFormat.Float32[1 << 4])
.Create();
Assert.Fail();
}
catch (AssuranceFailedException) { }
try {
TextureFactory.NewTexture1D <TexelFormat.Float32>()
.WithMipAllocation(false)
.WithWidth(1 << 4)
.WithUsage(ResourceUsage.Immutable)
.WithPermittedBindings(GPUBindings.ReadableShaderResource)
.WithInitialData(new TexelFormat.Float32[(1 << 5) - 1])
.Create();
Assert.Fail();
}
catch (AssuranceFailedException) { }
#endif
}
public void TestCreationWithInitialData()
{
// Define variables and constants
const uint TEXTURE_WIDTH = 1 << 6;
const uint TEXTURE_HEIGHT = 1 << 4;
Texture2DBuilder <TexelFormat.RGBA8UInt> texBuilder = TextureFactory.NewTexture2D <TexelFormat.RGBA8UInt>()
.WithUsage(ResourceUsage.StagingRead)
.WithPermittedBindings(GPUBindings.None)
.WithWidth(TEXTURE_WIDTH)
.WithHeight(TEXTURE_HEIGHT);
TexelFormat.RGBA8UInt[] initialDataA = new TexelFormat.RGBA8UInt[TEXTURE_WIDTH * TEXTURE_HEIGHT];
TexelFormat.RGBA8UInt[] initialDataB = new TexelFormat.RGBA8UInt[TextureUtils.GetSizeTexels(true, TEXTURE_WIDTH, TEXTURE_HEIGHT)];
Texture2D <TexelFormat.RGBA8UInt> testTextureA, testTextureB;
TexelArray2D <TexelFormat.RGBA8UInt> texAData;
TexelArray2D <TexelFormat.RGBA8UInt>[] texBData = new TexelArray2D <TexelFormat.RGBA8UInt> [TextureUtils.GetNumMips(TEXTURE_WIDTH, TEXTURE_HEIGHT)];
// Set up context
for (uint i = 0; i < initialDataA.Length; ++i)
{
initialDataA[i].R = (byte)i;
initialDataA[i].G = (byte)(i * 2);
initialDataA[i].B = (byte)(i * 3);
initialDataA[i].A = (byte)(i * 4);
}
testTextureA = texBuilder.WithInitialData(initialDataA).Create();
uint mipWidth = TEXTURE_WIDTH;
uint mipHeight = TEXTURE_HEIGHT;
uint texelIndex = 0U;
while (mipWidth > 1U || mipHeight > 1U)
{
for (uint v = 0; v < mipHeight; ++v)
{
for (uint u = 0; u < mipWidth; ++u, ++texelIndex)
{
initialDataB[texelIndex].R = (byte)(u + mipWidth + v + mipHeight);
initialDataB[texelIndex].G = (byte)(u + mipWidth + v + mipHeight * 2);
initialDataB[texelIndex].B = (byte)(u + mipWidth + v + mipHeight * 3);
initialDataB[texelIndex].A = (byte)(u + mipWidth + v + mipHeight * 4);
}
}
mipWidth = Math.Max(1U, mipWidth >> 1);
mipHeight = Math.Max(1U, mipHeight >> 1);
}
initialDataB[initialDataB.Length - 1] = new TexelFormat.RGBA8UInt {
R = 2, G = 3, B = 4, A = 5
};
testTextureB = texBuilder.WithMipAllocation(true).WithInitialData(initialDataB).Create();
// Execute
texAData = testTextureA.Read(0U);
for (uint i = 0; i < texBData.Length; ++i)
{
texBData[i] = testTextureB.Read(i);
}
// Assert outcome
for (uint i = 0; i < texAData.Width; ++i)
{
Assert.AreEqual((byte)i, initialDataA[i].R);
Assert.AreEqual((byte)(i * 2), initialDataA[i].G);
Assert.AreEqual((byte)(i * 3), initialDataA[i].B);
Assert.AreEqual((byte)(i * 4), initialDataA[i].A);
}
for (uint mipIndex = 0U; mipIndex < testTextureB.NumMips; ++mipIndex)
{
for (uint v = 0; v < testTextureB.MipHeight(mipIndex); ++v)
{
for (uint u = 0; u < testTextureB.MipWidth(mipIndex); ++u)
{
Assert.AreEqual((byte)(u + testTextureB.MipWidth(mipIndex) + v + testTextureB.MipHeight(mipIndex)), texBData[mipIndex][u, v].R);
Assert.AreEqual((byte)(u + testTextureB.MipWidth(mipIndex) + v + testTextureB.MipHeight(mipIndex) * 2), texBData[mipIndex][u, v].G);
Assert.AreEqual((byte)(u + testTextureB.MipWidth(mipIndex) + v + testTextureB.MipHeight(mipIndex) * 3), texBData[mipIndex][u, v].B);
Assert.AreEqual((byte)(u + testTextureB.MipWidth(mipIndex) + v + testTextureB.MipHeight(mipIndex) * 4), texBData[mipIndex][u, v].A);
}
}
}
testTextureA.Dispose();
testTextureB.Dispose();
}