mirror of
https://github.com/Ryujinx/GtkSharp.git
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77 lines
1.9 KiB
C#
77 lines
1.9 KiB
C#
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using System;
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using System.Diagnostics;
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using System.IO;
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using Cairo;
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public class CairoPng
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{
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public void CreatePng ()
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{
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const int Width = 480;
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const int Height = 160;
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const int CheckSize = 10;
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const int Spacing = 2;
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// Create an Image-based surface with data stored in ARGB32 format and a context,
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// "using" is used here to ensure that they are Disposed once we are done
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using (ImageSurface surface = new ImageSurface (Format.ARGB32, Width, Height))
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using (Context cr = new Cairo.Context (surface))
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{
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// Start drawing a checkerboard
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int i, j, xcount, ycount;
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xcount = 0;
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i = Spacing;
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while (i < Width) {
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j = Spacing;
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ycount = xcount % 2; // start with even/odd depending on row
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while (j < Height) {
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if (ycount % 2 != 0)
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cr.SetSourceRGB (1, 0, 0);
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else
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cr.SetSourceRGB (1, 1, 1);
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// If we're outside the clip, this will do nothing.
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cr.Rectangle (i, j, CheckSize, CheckSize);
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cr.Fill ();
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j += CheckSize + Spacing;
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++ycount;
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}
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i += CheckSize + Spacing;
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++xcount;
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}
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// Select a font to draw with
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cr.SelectFontFace ("serif", FontSlant.Normal, FontWeight.Bold);
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cr.SetFontSize (64.0);
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// Select a color (blue)
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cr.SetSourceRGB (0, 0, 1);
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// Draw
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cr.MoveTo (20, 100);
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cr.ShowText ("Hello, World");
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surface.WriteToPng ("test.png");
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}
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}
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static void Main ()
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{
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var app = new CairoPng ();
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int iterations = 100;
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for (int loop = 0; loop < 10; loop++) {
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Stopwatch stop_watch = new Stopwatch ();
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stop_watch.Start ();
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Console.Write ("Starting iterations, {0} bytes used...\t", Process.GetCurrentProcess().PrivateMemorySize64);
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for (int i = 0; i < iterations; i++) {
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app.CreatePng ();
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}
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stop_watch.Stop ();
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Console.WriteLine ("Created {0} PNG files in {1}ms", iterations, stop_watch.ElapsedMilliseconds);
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System.Threading.Thread.Sleep (1000);
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}
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}
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}
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