(ded4a3e0a) v0.9.0.7

Libraries/MonoGame.Framework/Src/MonoGame.Framework/Graphics/TextureCollection.OpenGL.cs

@@ -0,0 +1,70 @@
+// MonoGame - Copyright (C) The MonoGame Team
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE.txt', which is part of this source code package.
+
+using MonoGame.OpenGL;
+
+namespace Microsoft.Xna.Framework.Graphics
+{
+    public sealed partial class TextureCollection
+    {
+        private TextureTarget[] _targets;
+
+        void PlatformInit()
+        {
+            _targets = new TextureTarget[_textures.Length];
+        }
+
+        void PlatformClear()
+        {
+            for (var i = 0; i < _targets.Length; i++)
+                _targets[i] = 0;
+        }
+
+        void PlatformSetTextures(GraphicsDevice device)
+        {
+            // Skip out if nothing has changed.
+            if (_dirty == 0)
+                return;
+
+            for (var i = 0; i < _textures.Length; i++)
+            {
+                var mask = 1 << i;
+                if ((_dirty & mask) == 0)
+                    continue;
+
+                var tex = _textures[i];
+
+                GL.ActiveTexture(TextureUnit.Texture0 + i);
+                GraphicsExtensions.CheckGLError();
+
+                // Clear the previous binding if the 
+                // target is different from the new one.
+                if (_targets[i] != 0 && (tex == null || _targets[i] != tex.glTarget))
+                {
+                    GL.BindTexture(_targets[i], 0);
+                    _targets[i] = 0;
+                    GraphicsExtensions.CheckGLError();
+                }
+
+                if (tex != null)
+                {
+                    _targets[i] = tex.glTarget;
+                    GL.BindTexture(tex.glTarget, tex.glTexture);
+                    GraphicsExtensions.CheckGLError();
+
+                    unchecked
+                    {
+                        _graphicsDevice._graphicsMetrics._textureCount++;
+                    }
+                }
+
+                _dirty &= ~mask;
+                if (_dirty == 0)
+                    break;
+            }
+
+            _dirty = 0;
+        }
+    }
+}