ISrvBindable CreateNewTexture(Vector2I resolution)
{
string debugName = string.Format("Debug-mipmap-{0}x{1}", resolution.X, resolution.Y);
int mipmapLevels = MyResourceUtils.GetMipmapsCount(Math.Max(resolution.X, resolution.Y));
resolution.X = MyResourceUtils.GetMipmapStride(resolution.X, 0); // this is required by texture compression
resolution.Y = MyResourceUtils.GetMipmapStride(resolution.Y, 0); // this is required by texture compression
ISrvTexture dstTex = MyManagers.RwTextures.CreateSrv(debugName, resolution.X, resolution.Y, Format.BC7_UNorm_SRgb, mipmapLevels: mipmapLevels);
for (int i = 0; i < mipmapLevels; i++)
{
ISrvBindable srcTex = m_fileTextures[i % m_fileTextures.Length];
Vector2I mipmapResolution = new Vector2I(MyResourceUtils.GetMipmapSize(resolution.X, i),
MyResourceUtils.GetMipmapSize(resolution.Y, i));
for (int x = 0; x < mipmapResolution.X; x += srcTex.Size.X)
{
for (int y = 0; y < mipmapResolution.Y; y += srcTex.Size.Y)
{
MyRender11.RC.CopySubresourceRegion(srcTex, 0, null, dstTex, i, x, y);
}
}
}
return(dstTex);
}
unsafe void InitDxObjects(string name, Vector2I size, Format format, byte[] bytePattern)
{
Texture2DDescription desc = new Texture2DDescription();
desc.Format = format;
desc.ArraySize = 1;
desc.Height = size.Y;
desc.Width = size.X;
desc.MipLevels = MyResourceUtils.GetMipmapsCount(Math.Max(size.X, size.Y));
desc.BindFlags = BindFlags.ShaderResource;
desc.CpuAccessFlags = CpuAccessFlags.None;
desc.OptionFlags = ResourceOptionFlags.None;
desc.Usage = ResourceUsage.Immutable;
desc.SampleDescription = new SampleDescription(1, 0);
Vector2I strides0;
strides0.X = MyResourceUtils.GetMipmapStride(desc.Width, 0);
strides0.Y = MyResourceUtils.GetMipmapStride(desc.Height, 0);
byte[] dataBoxData = CreateTextureDataByPattern(strides0, bytePattern);
DataBox[] dataBoxes = new DataBox[desc.MipLevels];
int blocksOffset = 0;
fixed(void *ptr = dataBoxData)
{
for (int i = 0; i < dataBoxes.Length; i++)
{
dataBoxes[i].SlicePitch = 0;
dataBoxes[i].RowPitch = MyResourceUtils.GetMipmapStride(size.X, i) * bytePattern.Length / 16;
dataBoxes[i].DataPointer = new IntPtr(((byte *)ptr) + blocksOffset * bytePattern.Length);
Vector2I blocksInMipmap;
blocksInMipmap.X = MyResourceUtils.GetMipmapStride(size.X, i) / 4;
blocksInMipmap.Y = MyResourceUtils.GetMipmapStride(size.Y, i) / 4;
blocksOffset += blocksInMipmap.X * blocksInMipmap.Y;
}
m_resource = new Texture2D(MyRender11.Device, desc, dataBoxes);
m_resource.DebugName = name;
}
m_srv = new ShaderResourceView(MyRender11.Device, m_resource);
m_srv.DebugName = name;
}
byte[] CreateTextureDataByPattern(Vector2I strides, byte[] pattern4x4)
{
MyRenderProxy.Assert(strides.X % 4 == 0);
MyRenderProxy.Assert(strides.Y % 4 == 0);
int blocksCount = 0;
for (int i = 0; i < MyResourceUtils.GetMipmapsCount(Math.Max(strides.X, strides.Y)); i++)
{
Vector2I blocksInMipmap;
blocksInMipmap.X = MyResourceUtils.GetMipmapStride(strides.X, i);
blocksInMipmap.Y = MyResourceUtils.GetMipmapStride(strides.Y, i);
blocksCount += blocksInMipmap.X * blocksInMipmap.Y / 16;
}
byte[] data = new byte[blocksCount * pattern4x4.Length];
for (int i = 0; i < blocksCount; i++)
{
Array.Copy(pattern4x4, 0, data, pattern4x4.Length * i, pattern4x4.Length);
}
return(data);
}