1 files changed, 246 insertions, 0 deletions
diff --git a/Ryujinx.Graphics.OpenGL/OpenGLRenderer.cs b/Ryujinx.Graphics.OpenGL/OpenGLRenderer.cs
new file mode 100644
index 00000000..4df81cef
--- /dev/null
+++ b/Ryujinx.Graphics.OpenGL/OpenGLRenderer.cs
@@ -0,0 +1,246 @@
+using OpenTK.Graphics.OpenGL;
+using Ryujinx.Common.Configuration;
+using Ryujinx.Common.Logging;
+using Ryujinx.Graphics.GAL;
+using Ryujinx.Graphics.OpenGL.Image;
+using Ryujinx.Graphics.OpenGL.Queries;
+using Ryujinx.Graphics.Shader.Translation;
+using System;
+
+namespace Ryujinx.Graphics.OpenGL
+{
+    public sealed class OpenGLRenderer : IRenderer
+    {
+        private readonly Pipeline _pipeline;
+
+        public IPipeline Pipeline => _pipeline;
+
+        private readonly Counters _counters;
+
+        private readonly Window _window;
+
+        public IWindow Window => _window;
+
+        private TextureCopy _textureCopy;
+        private TextureCopy _backgroundTextureCopy;
+        internal TextureCopy TextureCopy => BackgroundContextWorker.InBackground ? _backgroundTextureCopy : _textureCopy;
+
+        private Sync _sync;
+
+        public event EventHandler<ScreenCaptureImageInfo> ScreenCaptured;
+
+        internal PersistentBuffers PersistentBuffers { get; }
+
+        internal ResourcePool ResourcePool { get; }
+
+        internal int BufferCount { get; private set; }
+
+        public string GpuVendor { get; private set; }
+        public string GpuRenderer { get; private set; }
+        public string GpuVersion { get; private set; }
+
+        public bool PreferThreading => true;
+
+        public OpenGLRenderer()
+        {
+            _pipeline = new Pipeline();
+            _counters = new Counters();
+            _window = new Window(this);
+            _textureCopy = new TextureCopy(this);
+            _backgroundTextureCopy = new TextureCopy(this);
+            _sync = new Sync();
+            PersistentBuffers = new PersistentBuffers();
+            ResourcePool = new ResourcePool();
+        }
+
+        public BufferHandle CreateBuffer(int size)
+        {
+            BufferCount++;
+
+            return Buffer.Create(size);
+        }
+
+        public IProgram CreateProgram(ShaderSource[] shaders, ShaderInfo info)
+        {
+            return new Program(shaders, info.FragmentOutputMap);
+        }
+
+        public ISampler CreateSampler(SamplerCreateInfo info)
+        {
+            return new Sampler(info);
+        }
+
+        public ITexture CreateTexture(TextureCreateInfo info, float scaleFactor)
+        {
+            if (info.Target == Target.TextureBuffer)
+            {
+                return new TextureBuffer(this, info);
+            }
+            else
+            {
+                return ResourcePool.GetTextureOrNull(info, scaleFactor) ?? new TextureStorage(this, info, scaleFactor).CreateDefaultView();
+            }
+        }
+
+        public void DeleteBuffer(BufferHandle buffer)
+        {
+            Buffer.Delete(buffer);
+        }
+
+        public HardwareInfo GetHardwareInfo()
+        {
+            return new HardwareInfo(GpuVendor, GpuRenderer);
+        }
+
+        public ReadOnlySpan<byte> GetBufferData(BufferHandle buffer, int offset, int size)
+        {
+            return Buffer.GetData(this, buffer, offset, size);
+        }
+
+        public Capabilities GetCapabilities()
+        {
+            return new Capabilities(
+                api: TargetApi.OpenGL,
+                vendorName: GpuVendor,
+                hasFrontFacingBug: HwCapabilities.Vendor == HwCapabilities.GpuVendor.IntelWindows,
+                hasVectorIndexingBug: HwCapabilities.Vendor == HwCapabilities.GpuVendor.AmdWindows,
+                supportsAstcCompression: HwCapabilities.SupportsAstcCompression,
+                supportsBc123Compression: HwCapabilities.SupportsTextureCompressionS3tc,
+                supportsBc45Compression: HwCapabilities.SupportsTextureCompressionRgtc,
+                supportsBc67Compression: true, // Should check BPTC extension, but for some reason NVIDIA is not exposing the extension.
+                supports3DTextureCompression: false,
+                supportsBgraFormat: false,
+                supportsR4G4Format: false,
+                supportsFragmentShaderInterlock: HwCapabilities.SupportsFragmentShaderInterlock,
+                supportsFragmentShaderOrderingIntel: HwCapabilities.SupportsFragmentShaderOrdering,
+                supportsGeometryShaderPassthrough: HwCapabilities.SupportsGeometryShaderPassthrough,
+                supportsImageLoadFormatted: HwCapabilities.SupportsImageLoadFormatted,
+                supportsMismatchingViewFormat: HwCapabilities.SupportsMismatchingViewFormat,
+                supportsCubemapView: true,
+                supportsNonConstantTextureOffset: HwCapabilities.SupportsNonConstantTextureOffset,
+                supportsShaderBallot: HwCapabilities.SupportsShaderBallot,
+                supportsTextureShadowLod: HwCapabilities.SupportsTextureShadowLod,
+                supportsViewportSwizzle: HwCapabilities.SupportsViewportSwizzle,
+                supportsIndirectParameters: HwCapabilities.SupportsIndirectParameters,
+                maximumUniformBuffersPerStage: 13, // TODO: Avoid hardcoding those limits here and get from driver?
+                maximumStorageBuffersPerStage: 16,
+                maximumTexturesPerStage: 32,
+                maximumImagesPerStage: 8,
+                maximumComputeSharedMemorySize: HwCapabilities.MaximumComputeSharedMemorySize,
+                maximumSupportedAnisotropy: HwCapabilities.MaximumSupportedAnisotropy,
+                storageBufferOffsetAlignment: HwCapabilities.StorageBufferOffsetAlignment);
+        }
+
+        public void SetBufferData(BufferHandle buffer, int offset, ReadOnlySpan<byte> data)
+        {
+            Buffer.SetData(buffer, offset, data);
+        }
+
+        public void UpdateCounters()
+        {
+            _counters.Update();
+        }
+
+        public void PreFrame()
+        {
+            _sync.Cleanup();
+            ResourcePool.Tick();
+        }
+
+        public ICounterEvent ReportCounter(CounterType type, EventHandler<ulong> resultHandler, bool hostReserved)
+        {
+            return _counters.QueueReport(type, resultHandler, _pipeline.DrawCount, hostReserved);
+        }
+
+        public void Initialize(GraphicsDebugLevel glLogLevel)
+        {
+            Debugger.Initialize(glLogLevel);
+
+            PrintGpuInformation();
+
+            if (HwCapabilities.SupportsParallelShaderCompile)
+            {
+                GL.Arb.MaxShaderCompilerThreads(Math.Min(Environment.ProcessorCount, 8));
+            }
+
+            _pipeline.Initialize(this);
+            _counters.Initialize();
+
+            // This is required to disable [0, 1] clamping for SNorm outputs on compatibility profiles.
+            // This call is expected to fail if we're running with a core profile,
+            // as this clamp target was deprecated, but that's fine as a core profile
+            // should already have the desired behaviour were outputs are not clamped.
+            GL.ClampColor(ClampColorTarget.ClampFragmentColor, ClampColorMode.False);
+        }
+
+        private void PrintGpuInformation()
+        {
+            GpuVendor   = GL.GetString(StringName.Vendor);
+            GpuRenderer = GL.GetString(StringName.Renderer);
+            GpuVersion  = GL.GetString(StringName.Version);
+
+            Logger.Notice.Print(LogClass.Gpu, $"{GpuVendor} {GpuRenderer} ({GpuVersion})");
+        }
+
+        public void ResetCounter(CounterType type)
+        {
+            _counters.QueueReset(type);
+        }
+
+        public void BackgroundContextAction(Action action, bool alwaysBackground = false)
+        {
+            // alwaysBackground is ignored, since we cannot switch from the current context.
+
+            if (IOpenGLContext.HasContext())
+            {
+                action(); // We have a context already - use that (assuming it is the main one).
+            }
+            else
+            {
+                _window.BackgroundContext.Invoke(action);
+            }
+        }
+
+        public void InitializeBackgroundContext(IOpenGLContext baseContext)
+        {
+            _window.InitializeBackgroundContext(baseContext);
+        }
+
+        public void Dispose()
+        {
+            _textureCopy.Dispose();
+            _backgroundTextureCopy.Dispose();
+            PersistentBuffers.Dispose();
+            ResourcePool.Dispose();
+            _pipeline.Dispose();
+            _window.Dispose();
+            _counters.Dispose();
+            _sync.Dispose();
+        }
+
+        public IProgram LoadProgramBinary(byte[] programBinary, bool hasFragmentShader, ShaderInfo info)
+        {
+            return new Program(programBinary, hasFragmentShader, info.FragmentOutputMap);
+        }
+
+        public void CreateSync(ulong id)
+        {
+            _sync.Create(id);
+        }
+
+        public void WaitSync(ulong id)
+        {
+            _sync.Wait(id);
+        }
+
+        public void Screenshot()
+        {
+            _window.ScreenCaptureRequested = true;
+        }
+
+        public void OnScreenCaptured(ScreenCaptureImageInfo bitmap)
+        {
+            ScreenCaptured?.Invoke(this, bitmap);
+        }
+    }
+}