public void TestReadWrite()
{
// Define variables and constants
const uint WIDTH_TX = 512U;
const uint TARGET_MIP_INDEX = 4U;
const uint DATA_WRITE_OFFSET = 10U;
const uint DATA_WRITE_COUNT = 10U;
Texture1D <TexelFormat.RGBA32UInt> srcTex = TextureFactory.NewTexture1D <TexelFormat.RGBA32UInt>()
.WithInitialData(
Enumerable.Range(0, (int)TextureUtils.GetSizeTexels(true, WIDTH_TX))
.Select(i => (uint)i)
.Select(i => new TexelFormat.RGBA32UInt {
R = i, G = i * 2, B = i * 3, A = i * 4
})
.ToArray()
)
.WithMipAllocation(true)
.WithPermittedBindings(GPUBindings.None)
.WithUsage(ResourceUsage.StagingReadWrite)
.WithWidth(WIDTH_TX);
srcTex.ReadWrite(data => {
for (uint i = DATA_WRITE_OFFSET; i < DATA_WRITE_OFFSET + DATA_WRITE_COUNT; ++i)
{
data[(int)i] = new TexelFormat.RGBA32UInt {
R = i, G = i * 3, B = i * 6, A = i * 9
};
}
},
TARGET_MIP_INDEX);
var readData = srcTex.Read(TARGET_MIP_INDEX);
for (uint i = DATA_WRITE_OFFSET; i < DATA_WRITE_OFFSET + DATA_WRITE_COUNT; ++i)
{
Assert.AreEqual(i, readData[(int)i].R);
Assert.AreEqual(i * 3, readData[(int)i].G);
Assert.AreEqual(i * 6, readData[(int)i].B);
Assert.AreEqual(i * 9, readData[(int)i].A);
}
srcTex.Dispose();
}
