public unsafe void TestCreation()
{
// Define variables and constants
const uint NUM_TEXTURES = 10U;
const uint TEXEL_SIZE_BYTES = 16;
const uint TEX_WIDTH = 512U;
const uint TEX_HEIGHT = 128U;
const uint TEX_DEPTH = 32U;
uint numMipsPerTex = TextureUtils.GetNumMips(TEX_WIDTH, TEX_HEIGHT, TEX_DEPTH);
IntPtr mockDataStart = new IntPtr(100);
// Set up context
// Execute
InitialResourceDataDesc[] initialDataArray = InitialResourceDataDesc.CreateDataArr(
mockDataStart,
NUM_TEXTURES,
numMipsPerTex,
TEX_WIDTH,
TEX_HEIGHT,
TEX_DEPTH,
TEXEL_SIZE_BYTES
);
// Assert outcome
Assert.AreEqual((int)(NUM_TEXTURES * numMipsPerTex), initialDataArray.Length);
for (uint tex = 0U; tex < NUM_TEXTURES; ++tex)
{
for (uint mip = 0U; mip < numMipsPerTex; ++mip)
{
InitialResourceDataDesc thisDesc = initialDataArray[numMipsPerTex * tex + mip];
IntPtr expectedDataStart = mockDataStart;
expectedDataStart += (int)(TextureUtils.GetSize(TEXEL_SIZE_BYTES, true, TEX_WIDTH, TEX_HEIGHT, TEX_DEPTH) * tex);
for (uint i = 0U; i < mip; ++i)
{
uint mipWidth = TextureUtils.GetDimensionForMipLevel(TEX_WIDTH, i);
uint mipHeight = TextureUtils.GetDimensionForMipLevel(TEX_HEIGHT, i);
uint mipDepth = TextureUtils.GetDimensionForMipLevel(TEX_DEPTH, i);
expectedDataStart += (int)TextureUtils.GetSize(TEXEL_SIZE_BYTES, false, mipWidth, mipHeight, mipDepth);
}
Assert.AreEqual(expectedDataStart, thisDesc.Data);
Assert.AreEqual(TextureUtils.GetDimensionForMipLevel(TEX_WIDTH, mip) * TEXEL_SIZE_BYTES, thisDesc.DataRowStrideBytes);
Assert.AreEqual(
TextureUtils.GetDimensionForMipLevel(TEX_WIDTH, mip)
* TextureUtils.GetDimensionForMipLevel(TEX_HEIGHT, mip)
* TEXEL_SIZE_BYTES,
thisDesc.DataSliceStrideBytes
);
}
}
}
public void TestGetDimensionsForMipLevel()
{
// Define variables and constants
// Set up context
// Execute
// Assert outcome
Assert.AreEqual(128U, TextureUtils.GetDimensionForMipLevel(128U, 0U));
Assert.AreEqual(32U, TextureUtils.GetDimensionForMipLevel(128U, 2U));
Assert.AreEqual(1U, TextureUtils.GetDimensionForMipLevel(128U, 100000U));
Assert.AreEqual(500U, TextureUtils.GetDimensionForMipLevel(500U, 0U));
}
public uint MipWidth(uint mipIndex)
{
Assure.LessThan(mipIndex, NumMips, "Mip index out of bounds.");
return(TextureUtils.GetDimensionForMipLevel(width, mipIndex));
}
