本文整理汇总了C#中Android.Graphics.Bitmap.CopyPixelsFromBuffer方法的典型用法代码示例。如果您正苦于以下问题：C# Bitmap.CopyPixelsFromBuffer方法的具体用法？C# Bitmap.CopyPixelsFromBuffer怎么用？C# Bitmap.CopyPixelsFromBuffer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Android.Graphics.Bitmap的用法示例。
在下文中一共展示了Bitmap.CopyPixelsFromBuffer方法的1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: Draw
//.........这里部分代码省略.........
DateTime end = DateTime.Now;
TimeSpan timeTaken = end - _firstDrawTime;
var first = _first60fps;
var second = 60 / timeTaken.TotalSeconds;
}
GraphicsDevice.Clear(Color.CornflowerBlue);
Texture2D texture = (_mode % 2 == 0) ? _checkers60 : _checkers64;
//for (int i = 0; i < 10; i++)
{
if (_mode < 2) //Without matrix
spriteBatch.Begin(SpriteSortMode.Immediate, BlendState.AlphaBlend, SamplerState.LinearWrap, null, null);
else //With matrix to rotate whole screen 180
spriteBatch.Begin(SpriteSortMode.Immediate, BlendState.AlphaBlend, SamplerState.LinearWrap, null, null, null, Matrix.CreateRotationZ(MathHelper.ToRadians(180)) * Matrix.CreateTranslation(480, 320, 0));
var size = new Vector2(texture.Width, texture.Height);
//Plain
spriteBatch.Draw(texture, new Vector2(5, 5), new Rectangle(0, 0, (int)size.X, (int)size.Y), Color.White, 0, Vector2.Zero, 1, SpriteEffects.None, 0);
//2x across
spriteBatch.Draw(texture, new Vector2(5, 10 + size.Y), new Rectangle(0, 0, (int)size.X * 2, (int)size.Y), Color.White, 0, Vector2.Zero, 1, SpriteEffects.None, 0);
//2x down
spriteBatch.Draw(texture, new Vector2(5, 15 + 2 *size.Y), new Rectangle(0, 0, (int)size.X, (int)size.Y * 2), Color.White, 0, Vector2.Zero, 1, SpriteEffects.None, 0);
//2x2 down
spriteBatch.Draw(texture, new Vector2(10 + size.X, 15 + 2 * size.Y), new Rectangle(0, 0, (int)size.X * 2, (int)size.Y * 2), Color.White, 0, Vector2.Zero, 1, SpriteEffects.None, 0);
//1.5 across
spriteBatch.Draw(texture, new Vector2(10 + size.X, 5), new Rectangle(0, 0, (int)(size.X * 1.5f), (int)size.Y), Color.White, 0, Vector2.Zero, 1, SpriteEffects.None, 0);
//1.5 down
spriteBatch.Draw(texture, new Vector2(15 + 2.5f * size.X, 5), new Rectangle(0, 0, (int)size.X, (int)(size.Y * 1.5f)), Color.White, 0, Vector2.Zero, 1, SpriteEffects.None, 0);
//1.5x1.5
spriteBatch.Draw(texture, new Vector2(20 + 3.5f * size.X, 5), new Rectangle(0, 0, (int)(size.X * 1.5f), (int)(size.Y * 1.5f)), Color.White, 0, Vector2.Zero, 1, SpriteEffects.None, 0);
spriteBatch.End();
}
// TODO: Add your drawing code here
base.Draw(gameTime);
byte[] screenData = new byte[GraphicsDevice.Viewport.Width * GraphicsDevice.Viewport.Height * 4];
GraphicsDevice.GetBackBufferData(screenData);
//This returns the screen in BGRA format in XNA
#if WINDOWS
#if !(WINDOWS && DIRECTX)
//In XNA and MonoGame.OpenGL we need to swap the R and B bytes so we are in RGBA
for (var i = 0; i < screenData.Length; i += 4)
{
byte temp = screenData[i];
screenData[i] = screenData[i + 2];
screenData[i + 2] = temp;
}
#endif
using (var bitmap = new Bitmap(GraphicsDevice.Viewport.Width, GraphicsDevice.Viewport.Height))
{
var data = bitmap.LockBits(new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb); //This is actually RGBA byte format
Marshal.Copy(screenData, 0, data.Scan0, screenData.Length);
bitmap.UnlockBits(data);
bitmap.Save("out.png", ImageFormat.Png);
}
#endif
#if IOS
using (var colorSpace = CGColorSpace.CreateDeviceRGB())
using (var provider = new CGDataProvider(screenData, 0, screenData.Length))
using (var cgImage = new CGImage(GraphicsDevice.Viewport.Width, GraphicsDevice.Viewport.Height, 8, 4 * 8, 4 * GraphicsDevice.Viewport.Width, colorSpace, CGBitmapFlags.ByteOrderDefault, provider, null, false, CGColorRenderingIntent.Default))
using (var image = UIImage.FromImage(cgImage))
{
image.SaveToPhotosAlbum(null);
}
#endif
#if ANDROID
using (var buffer = ByteBuffer.Wrap(screenData))
using (var bitmap = Bitmap.CreateBitmap(GraphicsDevice.Viewport.Width, GraphicsDevice.Viewport.Height, Bitmap.Config.Argb8888))
{
bitmap.CopyPixelsFromBuffer(buffer);
var filename = System.IO.Path.Combine(Android.OS.Environment.ExternalStorageDirectory.AbsolutePath, "out.png");
//Make sure you have <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
using (var output = File.OpenWrite(filename))
{
bitmap.Compress(Bitmap.CompressFormat.Png, 100, output);
}
}
#endif
}