public void Copy(
byte[] src, int srcWidth, int srcHeight, int srcMipBias,
Texture2D dst, int dstElement, int dstX, int dstY, int dstMipLimit)
{
var dstData = _cache.GetValue(dst, _getData);
var fmtInfo = TextureFormatInfo.FromFormatID(dst.format);
Debug.Assert(fmtInfo.HasValue);
var bPixels = fmtInfo.Value.BlockPixelCount;
var bBytes = fmtInfo.Value.BlockDataSize;
for (int m = 0; m < dstMipLimit; m++)
{
var srcOffset = GetMipOffset(srcWidth, srcHeight, m + srcMipBias, bPixels);
var dstOffset = GetMipOffset(dst.width, dst.height, m, bPixels);
for (int y = 0; y < srcHeight; y += bPixels)
{
Buffer.BlockCopy(
src,
(srcOffset + (y / bPixels) * (srcWidth / bPixels)) * bBytes,
dstData,
(dstOffset + (((dstY + y) / bPixels) * (dst.width / bPixels) + (dstX / bPixels))) * bBytes,
(srcWidth / bPixels) * bBytes
);
}
}
dst.LoadRawTextureData(dstData);
dst.Apply(false, false);
}
public float EstimateVRAM(int materialCount)
{
checked {
return(Channels.Sum(c => {
var fmt = TextureFormatInfo.FromFormatID(c.Format);
if (fmt == null)
{
return 0;
}
return c.Count * (4.0f / 3.0f) *
(((float)VTSize * VTSize + materialCount * (float)ThumbSize * ThumbSize)
* fmt.Value.BlockDataSize)
/ (fmt.Value.BlockPixelCount * fmt.Value.BlockPixelCount);
}));
}
}