update Drawing2d package version, crow version v1.0.1v1.0.1-beta

1 files changed, 95 insertions, 0 deletions

diff --git a/Backends/CairoBackend/src/GLSurface.cs b/Backends/CairoBackend/src/GLSurface.cs
new file mode 100644
index 00000000..4fa262cc
--- /dev/null
+++ b/Backends/CairoBackend/src/GLSurface.cs
@@ -0,0 +1,95 @@
+//
+// Mono.Cairo.GLSurface.cs
+//
+// Authors:
+//			JP Bruyère (jp_bruyere@hotmail.com)
+//
+// This is an OO wrapper API for the Cairo API
+//
+// Copyright (C) 2016 JP Bruyère
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using OpenGL;
+using static OpenGL.Gl;
+
+namespace Crow.CairoBackend {
+
+	public class GLTextureSurface : Surface
+	{
+		uint texId;
+		internal GLTextureSurface (CairoDevice device, int width, int height)
+			: base ()
+		{
+			texId = GenTexture ();
+			BindTexture (TextureTarget.Texture2d, texId);
+			TexImage2D (TextureTarget.Texture2d, 0, InternalFormat.Rgb, width, height,
+				0, PixelFormat.Rgb, PixelType.UnsignedByte, 0);
+			TexParameteri(TextureTarget.Texture2d, TextureParameterName.TextureMagFilter, NEAREST);
+			TexParameteri(TextureTarget.Texture2d, TextureParameterName.TextureMinFilter, NEAREST);
+
+			handle = NativeMethods.cairo_gl_surface_create_for_texture (device.Handle,
+				(uint)Content.ColorAlpha, texId, width, height);
+		}
+		protected override void Dispose (bool disposing)
+		{
+			if (disposing && handle != IntPtr.Zero)
+				OpenGL.Gl.DeleteTextures (texId);
+			base.Dispose (disposing);
+		}
+
+	}
+	public class GLSurface : Surface
+	{
+		public GLSurface (IntPtr ptr, bool own) : base (ptr, own)
+		{}
+
+		public GLSurface (CairoDevice device, Content content, uint tex, int width, int height)
+			: base (NativeMethods.cairo_gl_surface_create_for_texture (device.Handle, (uint)content, tex, width, height), true)
+		{}
+
+		public GLSurface (EGLDevice device, IntPtr eglSurf, int width, int height)
+			: base (NativeMethods.cairo_gl_surface_create_for_egl (device.Handle, eglSurf, width, height), true)
+		{}
+
+		public GLSurface (GLXDevice device, IntPtr window, int width, int height)
+			: base (NativeMethods.cairo_gl_surface_create_for_window (device.Handle, window, width, height),true)
+		{}
+
+		public GLSurface (WGLDevice device, IntPtr hdc, int width, int height)
+			: base (NativeMethods.cairo_gl_surface_create_for_dc (device.Handle, hdc, width, height), true)
+		{}
+		public override void Flush ()
+		{
+			//base.Flush ();
+			SwapBuffers ();
+		}
+		public override int Width => NativeMethods.cairo_gl_surface_get_width (handle);
+		public override int Height => NativeMethods.cairo_gl_surface_get_height (handle);
+		public override void Resize(int width, int height)
+			=> NativeMethods.cairo_gl_surface_set_size(handle, width, height);
+
+		public void SwapBuffers(){
+			NativeMethods.cairo_gl_surface_swapbuffers (this.handle);
+		}
+	}
+}