/// <summary>
/// Function to perform an unlock.
/// </summary>
/// <param name="lockData">Lock data to remove.</param>
public void Unlock(GorgonTextureLockData lockData)
{
lock (_syncLock)
{
var key = new LockCacheKey(lockData.Graphics, lockData.MipLevel, lockData.ArrayIndex);
GorgonTextureLockData result;
if (!_locks.TryGetValue(key, out result))
{
return;
}
lockData.Graphics.Context.UnmapSubresource(_texture.D3DResource,
D3D.Resource.CalculateSubResourceIndex(lockData.MipLevel,
lockData.ArrayIndex,
_texture.Settings.MipCount));
_locks.Remove(key);
}
}
/// <summary>
/// Function to lock a sub resource.
/// </summary>
/// <param name="lockFlags">Flags used to lock the data.</param>
/// <param name="mipLevel">Mip map level to lock.</param>
/// <param name="arrayIndex">Array index to lock (1D/2D textures only).</param>
/// <param name="context">Graphics context to use for the lock.</param>
/// <returns>The locking data.</returns>
public GorgonTextureLockData Lock(BufferLockFlags lockFlags, int mipLevel, int arrayIndex, GorgonGraphics context)
{
lock (_syncLock)
{
var key = new LockCacheKey(context, mipLevel, arrayIndex);
GorgonTextureLockData result;
if (_locks.TryGetValue(key, out result))
{
return(result);
}
switch (_texture.ResourceType)
{
case ResourceType.Texture1D:
case ResourceType.Texture2D:
case ResourceType.Texture3D:
DX.DataStream lockStream;
DX.DataBox box = context.Context.MapSubresource(_texture.D3DResource,
D3D.Resource.CalculateSubResourceIndex(mipLevel, arrayIndex, _texture.Settings.MipCount),
GetMapMode(lockFlags),
D3D.MapFlags.None,
out lockStream);
result = new GorgonTextureLockData(context, _texture, this, box, mipLevel, arrayIndex);
_locks.Add(key, result);
break;
default:
throw new GorgonException(GorgonResult.CannotCreate,
string.Format(Resources.GORGFX_RESOURCE_INVALID, _texture.ResourceType));
}
return(result);
}
}
