1 files changed, 179 insertions, 0 deletions
diff --git a/Ryujinx.Graphics.OpenGL/TextureStorage.cs b/Ryujinx.Graphics.OpenGL/TextureStorage.cs
new file mode 100644
index 00000000..d74b0a8e
--- /dev/null
+++ b/Ryujinx.Graphics.OpenGL/TextureStorage.cs
@@ -0,0 +1,179 @@
+using Ryujinx.Graphics.GAL;
+using Ryujinx.Graphics.GAL.Texture;
+using Ryujinx.Graphics.OpenGL.Formats;
+using OpenTK.Graphics.OpenGL;
+
+namespace Ryujinx.Graphics.OpenGL
+{
+    class TextureStorage
+    {
+        public int Handle { get; private set; }
+
+        private Renderer _renderer;
+
+        private TextureCreateInfo _info;
+
+        public Target Target => _info.Target;
+
+        private int _viewsCount;
+
+        public TextureStorage(Renderer renderer, TextureCreateInfo info)
+        {
+            _renderer = renderer;
+            _info     = info;
+
+            Handle = GL.GenTexture();
+
+            CreateImmutableStorage();
+        }
+
+        private void CreateImmutableStorage()
+        {
+            TextureTarget target = _info.Target.Convert();
+
+            GL.ActiveTexture(TextureUnit.Texture0);
+
+            GL.BindTexture(target, Handle);
+
+            FormatInfo format = FormatTable.GetFormatInfo(_info.Format);
+
+            SizedInternalFormat internalFormat;
+
+            if (format.IsCompressed)
+            {
+                internalFormat = (SizedInternalFormat)format.PixelFormat;
+            }
+            else
+            {
+                internalFormat = (SizedInternalFormat)format.PixelInternalFormat;
+            }
+
+            switch (_info.Target)
+            {
+                case Target.Texture1D:
+                    GL.TexStorage1D(
+                        TextureTarget1d.Texture1D,
+                        _info.Levels,
+                        internalFormat,
+                        _info.Width);
+                    break;
+
+                case Target.Texture1DArray:
+                    GL.TexStorage2D(
+                        TextureTarget2d.Texture1DArray,
+                        _info.Levels,
+                        internalFormat,
+                        _info.Width,
+                        _info.Height);
+                    break;
+
+                case Target.Texture2D:
+                    GL.TexStorage2D(
+                        TextureTarget2d.Texture2D,
+                        _info.Levels,
+                        internalFormat,
+                        _info.Width,
+                        _info.Height);
+                    break;
+
+                case Target.Texture2DArray:
+                    GL.TexStorage3D(
+                        TextureTarget3d.Texture2DArray,
+                        _info.Levels,
+                        internalFormat,
+                        _info.Width,
+                        _info.Height,
+                        _info.Depth);
+                    break;
+
+                case Target.Texture2DMultisample:
+                    GL.TexStorage2DMultisample(
+                        TextureTargetMultisample2d.Texture2DMultisample,
+                        _info.Samples,
+                        internalFormat,
+                        _info.Width,
+                        _info.Height,
+                        true);
+                    break;
+
+                case Target.Texture2DMultisampleArray:
+                    GL.TexStorage3DMultisample(
+                        TextureTargetMultisample3d.Texture2DMultisampleArray,
+                        _info.Samples,
+                        internalFormat,
+                        _info.Width,
+                        _info.Height,
+                        _info.Depth,
+                        true);
+                    break;
+
+                case Target.Texture3D:
+                    GL.TexStorage3D(
+                        TextureTarget3d.Texture3D,
+                        _info.Levels,
+                        internalFormat,
+                        _info.Width,
+                        _info.Height,
+                        _info.Depth);
+                    break;
+
+                case Target.Cubemap:
+                    GL.TexStorage2D(
+                        TextureTarget2d.TextureCubeMap,
+                        _info.Levels,
+                        internalFormat,
+                        _info.Width,
+                        _info.Height);
+                    break;
+
+                case Target.CubemapArray:
+                    GL.TexStorage3D(
+                        (TextureTarget3d)All.TextureCubeMapArray,
+                        _info.Levels,
+                        internalFormat,
+                        _info.Width,
+                        _info.Height,
+                        _info.Depth);
+                    break;
+            }
+        }
+
+        public ITexture CreateDefaultView()
+        {
+            int layers = _info.GetLayers();
+
+            return CreateView(_info, 0, 0);
+        }
+
+        public ITexture CreateView(TextureCreateInfo info, int firstLayer, int firstLevel)
+        {
+            IncrementViewsCount();
+
+            return new TextureView(_renderer, this, info, firstLayer, firstLevel);
+        }
+
+        private void IncrementViewsCount()
+        {
+            _viewsCount++;
+        }
+
+        public void DecrementViewsCount()
+        {
+            // If we don't have any views, then the storage is now useless, delete it.
+            if (--_viewsCount == 0)
+            {
+                Dispose();
+            }
+        }
+
+        public void Dispose()
+        {
+            if (Handle != 0)
+            {
+                GL.DeleteTexture(Handle);
+
+                Handle = 0;
+            }
+        }
+    }
+}