/// <summary>
/// 空のテクスチャとそのシェーダーリソースビューを作成し、返す。
/// </summary>
public static (SharpDX.Direct3D11.ShaderResourceView srv, SharpDX.Direct3D11.Texture2D texture) CreateShaderResourceView(
SharpDX.Direct3D11.Device d3dDevice,
SharpDX.Direct3D11.BindFlags bindFlags,
Size2 サイズ)
{
var textureDesc = new SharpDX.Direct3D11.Texture2DDescription()
{
ArraySize = 1,
BindFlags = bindFlags,
CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.None,
Format = SharpDX.DXGI.Format.B8G8R8A8_UNorm,
Height = サイズ.Height,
Width = サイズ.Width,
MipLevels = 1,
OptionFlags = SharpDX.Direct3D11.ResourceOptionFlags.None,
SampleDescription = new SharpDX.DXGI.SampleDescription(1, 0),
Usage = SharpDX.Direct3D11.ResourceUsage.Default
};
var 出力 = (srv : (SharpDX.Direct3D11.ShaderResourceView)null, texture : (SharpDX.Direct3D11.Texture2D)null);
出力.texture = new SharpDX.Direct3D11.Texture2D(d3dDevice, textureDesc);
出力.srv = new SharpDX.Direct3D11.ShaderResourceView(d3dDevice, 出力.texture);
return(出力);
}
// グラフィック
/// <summary>
/// 画像ファイルからシェーダリソースビューを作成して返す。
/// </summary>
/// <remarks>
/// （参考: http://qiita.com/oguna/items/c516e09ee57d931892b6 ）
/// </remarks>
public static (SharpDX.Direct3D11.ShaderResourceView srv, Size2F viewSize, SharpDX.Direct3D11.Texture2D texture) CreateShaderResourceViewFromFile(
SharpDX.Direct3D11.Device d3dDevice,
SharpDX.Direct3D11.BindFlags bindFlags,
VariablePath 画像ファイルパス)
{
var 出力 = (
srv : (SharpDX.Direct3D11.ShaderResourceView)null,
viewSize : new Size2F(0, 0),
texture : (SharpDX.Direct3D11.Texture2D)null);
using (var image = new System.Drawing.Bitmap(画像ファイルパス.数なしパス))
{
var 画像の矩形 = new System.Drawing.Rectangle(0, 0, image.Width, image.Height);
using (var bitmap = image.Clone(画像の矩形, System.Drawing.Imaging.PixelFormat.Format32bppArgb))
{
var ロック領域 = bitmap.LockBits(画像の矩形, System.Drawing.Imaging.ImageLockMode.ReadOnly, bitmap.PixelFormat);
var dataBox = new[] { new DataBox(ロック領域.Scan0, bitmap.Width * 4, bitmap.Height) };
var textureDesc = new SharpDX.Direct3D11.Texture2DDescription()
{
ArraySize = 1,
BindFlags = bindFlags,
CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.None,
Format = SharpDX.DXGI.Format.B8G8R8A8_UNorm,
Height = bitmap.Height,
Width = bitmap.Width,
MipLevels = 1,
OptionFlags = SharpDX.Direct3D11.ResourceOptionFlags.None,
SampleDescription = new SharpDX.DXGI.SampleDescription(1, 0),
Usage = SharpDX.Direct3D11.ResourceUsage.Default
};
var texture = new SharpDX.Direct3D11.Texture2D(d3dDevice, textureDesc, dataBox);
bitmap.UnlockBits(ロック領域);
出力.srv = new SharpDX.Direct3D11.ShaderResourceView(d3dDevice, texture);
出力.texture = texture;
}
出力.viewSize = new Size2F(画像の矩形.Width, 画像の矩形.Height);
}
return(出力);
}
/// <summary>
///
/// </summary>
/// <param name="device"></param>
/// <param name="w"></param>
/// <param name="h"></param>
/// <param name="flags"></param>
/// <param name="format"></param>
/// <param name="options"></param>
/// <returns></returns>
public static SharpDX.Direct3D11.Texture2D CreateTexture2D(this SharpDX.Direct3D11.Device device,
int w, int h,
SharpDX.Direct3D11.BindFlags flags = SharpDX.Direct3D11.BindFlags.RenderTarget | SharpDX.Direct3D11.BindFlags.ShaderResource,
Format format = Format.B8G8R8A8_UNorm,
SharpDX.Direct3D11.ResourceOptionFlags options = SharpDX.Direct3D11.ResourceOptionFlags.Shared)
{
var colordesc = new SharpDX.Direct3D11.Texture2DDescription
{
BindFlags = flags,
Format = format,
Width = w,
Height = h,
MipLevels = 1,
SampleDescription = new SampleDescription(1, 0),
Usage = SharpDX.Direct3D11.ResourceUsage.Default,
OptionFlags = options,
CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.None,
ArraySize = 1
};
return(new SharpDX.Direct3D11.Texture2D(device, colordesc));
}
