本文整理汇总了C#中DataStream.WriteByte方法的典型用法代码示例。如果您正苦于以下问题：C# DataStream.WriteByte方法的具体用法？C# DataStream.WriteByte怎么用？C# DataStream.WriteByte使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DataStream的用法示例。
在下文中一共展示了DataStream.WriteByte方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Main
/// <summary>
/// SharpDX WIC sample. Encode to JPG and decode.
/// </summary>
static void Main()
{
const int width = 512;
const int height = 512;
const string filename = "output.jpg";
var factory = new ImagingFactory();
WICStream stream = null;
// ------------------------------------------------------
// Encode a JPG image
// ------------------------------------------------------
// Create a WIC outputstream
if (File.Exists(filename))
File.Delete(filename);
stream = new WICStream(factory, filename, NativeFileAccess.Write);
// Initialize a Jpeg encoder with this stream
var encoder = new JpegBitmapEncoder(factory);
encoder.Initialize(stream);
// Create a Frame encoder
var bitmapFrameEncode = new BitmapFrameEncode(encoder);
bitmapFrameEncode.Options.ImageQuality = 0.8f;
bitmapFrameEncode.Initialize();
bitmapFrameEncode.SetSize(width, height);
var guid = PixelFormat.Format24bppBGR;
bitmapFrameEncode.SetPixelFormat(ref guid);
// Write a pseudo-plasma to a buffer
int stride = PixelFormat.GetStride(PixelFormat.Format24bppBGR, width);
var bufferSize = height * stride;
var buffer = new DataStream(bufferSize, true, true);
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
buffer.WriteByte((byte)(x / 2.0 + 20.0 * Math.Sin(y / 40.0)));
buffer.WriteByte((byte)(y / 2.0 + 30.0 * Math.Sin(x / 80.0)));
buffer.WriteByte((byte)(x / 2.0));
}
}
// Copy the pixels from the buffer to the Wic Bitmap Frame encoder
bitmapFrameEncode.WritePixels(512, new DataRectangle(buffer.DataPointer, stride));
// Commit changes
bitmapFrameEncode.Commit();
encoder.Commit();
bitmapFrameEncode.Dispose();
encoder.Dispose();
stream.Dispose();
// ------------------------------------------------------
// Decode the previous JPG image
// ------------------------------------------------------
// Read input
stream = new WICStream(factory, filename, NativeFileAccess.Read);
var decoder = new JpegBitmapDecoder(factory);
decoder.Initialize(stream, DecodeOptions.CacheOnDemand);
var bitmapFrameDecode = decoder.GetFrame(0);
var queryReader = bitmapFrameDecode.MetadataQueryReader;
// Dump MetadataQueryreader
queryReader.Dump(Console.Out);
queryReader.Dispose();
bitmapFrameDecode.Dispose();
decoder.Dispose();
stream.Dispose();
// Dispose
factory.Dispose();
System.Diagnostics.Process.Start(Path.GetFullPath(Path.Combine(Environment.CurrentDirectory, filename)));
}示例2: TextureFromColor
public static SlimDX.Direct3D11.Texture2D TextureFromColor(SlimDX.Direct3D11.Device device, Color4 color, out SlimDX.Direct3D11.ShaderResourceView srv)
{
/*SlimDX.Direct3D11.Texture2DDescription desc2 = new SlimDX.Direct3D11.Texture2DDescription();
desc2.SampleDescription = new SlimDX.DXGI.SampleDescription(1, 0);
desc2.Width = 1;
desc2.Height = 1;
desc2.MipLevels = 1;
desc2.ArraySize = 1;
desc2.Format = SlimDX.DXGI.Format.R8G8B8A8_UNorm;
desc2.Usage = SlimDX.Direct3D11.ResourceUsage.Dynamic;
desc2.BindFlags = SlimDX.Direct3D11.BindFlags.ShaderResource;
desc2.CpuAccessFlags = SlimDX.Direct3D11.CpuAccessFlags.Write;
SlimDX.Direct3D11.Texture2D texture = new SlimDX.Direct3D11.Texture2D(device, desc2);
// fill the texture with rgba values
DataRectangle rect = texture.AsSurface().Map(SlimDX.DXGI.MapFlags.Write | SlimDX.DXGI.MapFlags.Discard);
if (rect.Data.CanWrite)
{
for (int row = 0; row < texture.Description.Height; row++)
{
int rowStart = row * rect.Pitch;
rect.Data.Seek(rowStart, System.IO.SeekOrigin.Begin);
for (int col = 0; col < texture.Description.Width; col++)
{
rect.Data.WriteByte((byte)(color.Red * 255));
rect.Data.WriteByte((byte)(color.Green * 255));
rect.Data.WriteByte((byte)(color.Blue * 255));
rect.Data.WriteByte((byte)(color.Alpha * 255));
}
}
}
texture.AsSurface().Unmap();
texture.AsSurface().Dispose();
srv = GetShaderResourceView(device, texture);*/
SlimDX.Direct3D11.Texture2DDescription desc2 = new SlimDX.Direct3D11.Texture2DDescription();
desc2.SampleDescription = new SlimDX.DXGI.SampleDescription(1, 0);
desc2.Width = 1;
desc2.Height = 1;
desc2.MipLevels = 1;
desc2.ArraySize = 1;
desc2.Format = SlimDX.DXGI.Format.R8G8B8A8_UNorm;
desc2.Usage = SlimDX.Direct3D11.ResourceUsage.Default;
desc2.BindFlags = SlimDX.Direct3D11.BindFlags.ShaderResource;
desc2.CpuAccessFlags = SlimDX.Direct3D11.CpuAccessFlags.None;
// fill the texture with rgba values
DataStream stream = new DataStream(sizeof(byte) * 4, false, true);
stream.WriteByte((byte)(color.Red * 255));
stream.WriteByte((byte)(color.Green * 255));
stream.WriteByte((byte)(color.Blue * 255));
stream.WriteByte((byte)(color.Alpha * 255));
stream.Position = 0;
SlimDX.Direct3D11.Texture2D texture = new SlimDX.Direct3D11.Texture2D(device, desc2, new DataRectangle(1, stream));
srv = GetShaderResourceView(device, texture);
return texture;
}