/// <summary>
/// Loads a texture from a stream.
/// </summary>
/// <param name="device">The <see cref="GraphicsDevice" />.</param>
/// <param name="image">The image.</param>
/// <param name="textureFlags">True to load the texture with unordered access enabled. Default is false.</param>
/// <param name="usage">Usage of the resource. Default is <see cref="GraphicsResourceUsage.Immutable" /></param>
/// <returns>A texture</returns>
/// <exception cref="System.InvalidOperationException">Dimension not supported</exception>
public static Texture New(GraphicsDevice device, Image image, TextureFlags textureFlags = TextureFlags.ShaderResource, GraphicsResourceUsage usage = GraphicsResourceUsage.Immutable)
{
if (device == null)
{
throw new ArgumentNullException("device");
}
if (image == null)
{
throw new ArgumentNullException("image");
}
switch (image.Description.Dimension)
{
case TextureDimension.Texture1D:
return(Texture1D.New(device, image, textureFlags, usage));
case TextureDimension.Texture2D:
return(Texture2D.New(device, image, textureFlags, usage));
case TextureDimension.Texture3D:
return(Texture3D.New(device, image, textureFlags, usage));
case TextureDimension.TextureCube:
return(TextureCube.New(device, image, textureFlags, usage));
}
throw new InvalidOperationException("Dimension not supported");
}
/// <summary>
/// Creates the depth stencil buffer.
/// </summary>
protected virtual void CreateDepthStencilBuffer()
{
// If no depth stencil buffer, just return
if (Description.DepthStencilFormat == PixelFormat.None)
{
return;
}
// Creates the depth stencil buffer.
var depthTexture = Texture2D.New(GraphicsDevice, Description.BackBufferWidth, Description.BackBufferHeight, Description.DepthStencilFormat, TextureFlags.DepthStencil | TextureFlags.ShaderResource).KeepAliveBy(this);
DepthStencilBuffer = depthTexture.ToDepthStencilBuffer(false).KeepAliveBy(this);
}
/// <summary>
/// Creates a new instance of <see cref="UIBatch"/>.
/// </summary>
/// <param name="device">A valid instance of <see cref="GraphicsDevice"/>.</param>
public UIBatch(GraphicsDevice device)
: base(device, UIEffect.Bytecode,
ResourceBufferInfo.CreateDynamicIndexBufferInfo("UIBatch.VertexIndexBuffers", MaxIndicesCount, MaxVerticesCount),
VertexPositionColorTextureSwizzle.Layout)
{
// Create the two ui effects
uiSeparateAlphaEffect = new Effect(GraphicsDevice, UIEffectSeparateAlpha.Bytecode)
{
Name = "SeparatedAlphaBatchEffect"
};
// Create a 1x1 pixel white texture
whiteTexture = Texture2D.New(GraphicsDevice, 1, 1, PixelFormat.R8G8B8A8_UNorm, new Byte[] { 255, 255, 255, 255 });
}
