/// <summary>
/// Gets the texture descriptor for a given texture handle.
/// </summary>
/// <param name="state">The current GPU state</param>
/// <param name="stageIndex">The stage number where the texture is bound</param>
/// <param name="handle">The texture handle</param>
/// <returns>The texture descriptor for the specified texture</returns>
public TextureDescriptor GetTextureDescriptor(GpuState state, int stageIndex, int handle)
{
int packedId = ReadPackedId(stageIndex, handle, state.Get <int>(MethodOffset.TextureBufferIndex));
int textureId = UnpackTextureId(packedId);
var poolState = state.Get <PoolState>(MethodOffset.TexturePoolState);
ulong poolAddress = _context.MemoryManager.Translate(poolState.Address.Pack());
TexturePool texturePool = _texturePoolCache.FindOrCreate(poolAddress, poolState.MaximumId);
return(texturePool.GetDescriptor(textureId));
}
/// <summary>
/// Gets the texture descriptor for a given texture handle.
/// </summary>
/// <param name="poolGpuVa">GPU virtual address of the texture pool</param>
/// <param name="bufferIndex">Index of the constant buffer with texture handles</param>
/// <param name="maximumId">Maximum ID of the texture pool</param>
/// <param name="stageIndex">The stage number where the texture is bound</param>
/// <param name="handle">The texture handle</param>
/// <param name="cbufSlot">The texture handle's constant buffer slot</param>
/// <returns>The texture descriptor for the specified texture</returns>
public TextureDescriptor GetTextureDescriptor(
ulong poolGpuVa,
int bufferIndex,
int maximumId,
int stageIndex,
int handle,
int cbufSlot)
{
int textureBufferIndex = cbufSlot < 0 ? bufferIndex : cbufSlot & SlotMask;
int packedId = ReadPackedId(stageIndex, handle, textureBufferIndex, textureBufferIndex);
int textureId = UnpackTextureId(packedId);
ulong poolAddress = _channel.MemoryManager.Translate(poolGpuVa);
TexturePool texturePool = _texturePoolCache.FindOrCreate(_channel, poolAddress, maximumId);
return(texturePool.GetDescriptor(textureId));
}
