OpenGL-accelerated Skia drawing for Win32/GTK backends

Avalonia.sln

@@ -186,6 +186,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Avalonia.Designer.HostApp.N
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Avalonia.Skia.UnitTests", "tests\Avalonia.Skia.UnitTests\Avalonia.Skia.UnitTests.csproj", "{E1240B49-7B4B-4371-A00E-068778C5CF0B}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Avalonia.OpenGL", "src\Avalonia.OpenGL\Avalonia.OpenGL.csproj", "{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}"
+EndProject
 Global
 	GlobalSection(SharedMSBuildProjectFiles) = preSolution
 		src\Shared\RenderHelpers\RenderHelpers.projitems*{3c4c0cb4-0c0f-4450-a37b-148c84ff905f}*SharedItemsImports = 13
@@ -1663,6 +1665,30 @@ Global
 		{E1240B49-7B4B-4371-A00E-068778C5CF0B}.Release|iPhone.Build.0 = Release|Any CPU
 		{E1240B49-7B4B-4371-A00E-068778C5CF0B}.Release|iPhoneSimulator.ActiveCfg = Release|Any CPU
 		{E1240B49-7B4B-4371-A00E-068778C5CF0B}.Release|iPhoneSimulator.Build.0 = Release|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Ad-Hoc|Any CPU.ActiveCfg = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Ad-Hoc|Any CPU.Build.0 = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Ad-Hoc|iPhone.ActiveCfg = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Ad-Hoc|iPhone.Build.0 = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Ad-Hoc|iPhoneSimulator.ActiveCfg = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Ad-Hoc|iPhoneSimulator.Build.0 = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.AppStore|Any CPU.ActiveCfg = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.AppStore|Any CPU.Build.0 = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.AppStore|iPhone.ActiveCfg = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.AppStore|iPhone.Build.0 = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.AppStore|iPhoneSimulator.ActiveCfg = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.AppStore|iPhoneSimulator.Build.0 = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Debug|iPhone.ActiveCfg = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Debug|iPhone.Build.0 = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Debug|iPhoneSimulator.ActiveCfg = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Debug|iPhoneSimulator.Build.0 = Debug|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Release|Any CPU.Build.0 = Release|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Release|iPhone.ActiveCfg = Release|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Release|iPhone.Build.0 = Release|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Release|iPhoneSimulator.ActiveCfg = Release|Any CPU
+		{7CCAEFC4-135D-401D-BDDD-896B9B7D3569}.Release|iPhoneSimulator.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

packages.cake

@@ -167,6 +167,7 @@ public class Packages
             new [] { "./src/", "Avalonia.Logging.Serilog"},
             new [] { "./src/", "Avalonia.Visuals"},
             new [] { "./src/", "Avalonia.Styling"},
+            new [] { "./src/", "Avalonia.OpenGL"},
             new [] { "./src/", "Avalonia.Themes.Default"},
             new [] { "./src/Markup/", "Avalonia.Markup"},
             new [] { "./src/Markup/", "Avalonia.Markup.Xaml"},

src/Avalonia.Base/Avalonia.Base.csproj

@@ -3,6 +3,7 @@
     <TargetFramework>netstandard2.0</TargetFramework>
     <AssemblyName>Avalonia.Base</AssemblyName>
     <RootNamespace>Avalonia</RootNamespace>
+    <AllowUnsafeBlocks>True</AllowUnsafeBlocks>
   </PropertyGroup>
   <Import Project="..\..\build\Base.props" />
   <Import Project="..\..\build\Binding.props" />

src/Avalonia.Base/Platform/Interop/IDynamicLibraryLoader.cs

@@ -0,0 +1,18 @@
+using System;
+
+namespace Avalonia.Platform.Interop
+{
+    public interface IDynamicLibraryLoader
+    {
+        IntPtr LoadLibrary(string dll);
+        IntPtr GetProcAddress(IntPtr dll, string proc, bool optional);
+    }
+
+    public class DynamicLibraryLoaderException : Exception
+    {
+        public DynamicLibraryLoaderException(string message) : base(message)
+        {
+
+        }
+    }
+}

src/Gtk/Avalonia.Gtk3/Interop/Utf8Buffer.cs → src/Avalonia.Base/Platform/Interop/Utf8Buffer.cs

@@ -2,9 +2,9 @@
 using System.Runtime.InteropServices;
 using System.Text;
 
-namespace Avalonia.Gtk3.Interop
+namespace Avalonia.Platform.Interop
 {
-    class Utf8Buffer : SafeHandle
+    public class Utf8Buffer : SafeHandle
     {
         private GCHandle _gchandle;
         private byte[] _data;

src/Avalonia.OpenGL/Avalonia.OpenGL.csproj

@@ -0,0 +1,12 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>netstandard2.0</TargetFramework>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\Avalonia.Base\Avalonia.Base.csproj" />
+      <ProjectReference Include="..\Avalonia.Visuals\Avalonia.Visuals.csproj" />
+    </ItemGroup>
+
+</Project>

src/Avalonia.OpenGL/EglConsts.cs

@@ -0,0 +1,196 @@
+// ReSharper disable UnusedMember.Global
+// ReSharper disable IdentifierTypo
+namespace Avalonia.OpenGL
+{
+    public static class EglConsts
+    {
+        public const int EGL_ALPHA_SIZE = 0x3021;
+        public const int EGL_BAD_ACCESS = 0x3002;
+        public const int EGL_BAD_ALLOC = 0x3003;
+        public const int EGL_BAD_ATTRIBUTE = 0x3004;
+        public const int EGL_BAD_CONFIG = 0x3005;
+        public const int EGL_BAD_CONTEXT = 0x3006;
+        public const int EGL_BAD_CURRENT_SURFACE = 0x3007;
+        public const int EGL_BAD_DISPLAY = 0x3008;
+        public const int EGL_BAD_MATCH = 0x3009;
+        public const int EGL_BAD_NATIVE_PIXMAP = 0x300A;
+        public const int EGL_BAD_NATIVE_WINDOW = 0x300B;
+        public const int EGL_BAD_PARAMETER = 0x300C;
+        public const int EGL_BAD_SURFACE = 0x300D;
+        public const int EGL_BLUE_SIZE = 0x3022;
+        public const int EGL_BUFFER_SIZE = 0x3020;
+        public const int EGL_CONFIG_CAVEAT = 0x3027;
+        public const int EGL_CONFIG_ID = 0x3028;
+        public const int EGL_CORE_NATIVE_ENGINE = 0x305B;
+        public const int EGL_DEPTH_SIZE = 0x3025;
+        public const int EGL_DONT_CARE = -1;
+        public const int EGL_DRAW = 0x3059;
+        public const int EGL_EXTENSIONS = 0x3055;
+        public const int EGL_FALSE = 0;
+        public const int EGL_GREEN_SIZE = 0x3023;
+        public const int EGL_HEIGHT = 0x3056;
+        public const int EGL_LARGEST_PBUFFER = 0x3058;
+        public const int EGL_LEVEL = 0x3029;
+        public const int EGL_MAX_PBUFFER_HEIGHT = 0x302A;
+        public const int EGL_MAX_PBUFFER_PIXELS = 0x302B;
+        public const int EGL_MAX_PBUFFER_WIDTH = 0x302C;
+        public const int EGL_NATIVE_RENDERABLE = 0x302D;
+        public const int EGL_NATIVE_VISUAL_ID = 0x302E;
+        public const int EGL_NATIVE_VISUAL_TYPE = 0x302F;
+        public const int EGL_NONE = 0x3038;
+        public const int EGL_NON_CONFORMANT_CONFIG = 0x3051;
+        public const int EGL_NOT_INITIALIZED = 0x3001;
+        public const int EGL_NO_CONTEXT = 0;
+        public const int EGL_NO_DISPLAY = 0;
+        public const int EGL_NO_SURFACE = 0;
+        public const int EGL_PBUFFER_BIT = 0x0001;
+        public const int EGL_PIXMAP_BIT = 0x0002;
+        public const int EGL_READ = 0x305A;
+        public const int EGL_RED_SIZE = 0x3024;
+        public const int EGL_SAMPLES = 0x3031;
+        public const int EGL_SAMPLE_BUFFERS = 0x3032;
+        public const int EGL_SLOW_CONFIG = 0x3050;
+        public const int EGL_STENCIL_SIZE = 0x3026;
+        public const int EGL_SUCCESS = 0x3000;
+        public const int EGL_SURFACE_TYPE = 0x3033;
+        public const int EGL_TRANSPARENT_BLUE_VALUE = 0x3035;
+        public const int EGL_TRANSPARENT_GREEN_VALUE = 0x3036;
+        public const int EGL_TRANSPARENT_RED_VALUE = 0x3037;
+        public const int EGL_TRANSPARENT_RGB = 0x3052;
+        public const int EGL_TRANSPARENT_TYPE = 0x3034;
+        public const int EGL_TRUE = 1;
+        public const int EGL_VENDOR = 0x3053;
+        public const int EGL_VERSION = 0x3054;
+        public const int EGL_WIDTH = 0x3057;
+        public const int EGL_WINDOW_BIT = 0x0004;
+
+        public const int EGL_BACK_BUFFER = 0x3084;
+        public const int EGL_BIND_TO_TEXTURE_RGB = 0x3039;
+        public const int EGL_BIND_TO_TEXTURE_RGBA = 0x303A;
+        public const int EGL_CONTEXT_LOST = 0x300E;
+        public const int EGL_MIN_SWAP_INTERVAL = 0x303B;
+        public const int EGL_MAX_SWAP_INTERVAL = 0x303C;
+        public const int EGL_MIPMAP_TEXTURE = 0x3082;
+        public const int EGL_MIPMAP_LEVEL = 0x3083;
+        public const int EGL_NO_TEXTURE = 0x305C;
+        public const int EGL_TEXTURE_2D = 0x305F;
+        public const int EGL_TEXTURE_FORMAT = 0x3080;
+        public const int EGL_TEXTURE_RGB = 0x305D;
+        public const int EGL_TEXTURE_RGBA = 0x305E;
+        public const int EGL_TEXTURE_TARGET = 0x3081;
+
+        public const int EGL_ALPHA_FORMAT = 0x3088;
+        public const int EGL_ALPHA_FORMAT_NONPRE = 0x308B;
+        public const int EGL_ALPHA_FORMAT_PRE = 0x308C;
+        public const int EGL_ALPHA_MASK_SIZE = 0x303E;
+        public const int EGL_BUFFER_PRESERVED = 0x3094;
+        public const int EGL_BUFFER_DESTROYED = 0x3095;
+        public const int EGL_CLIENT_APIS = 0x308D;
+        public const int EGL_COLORSPACE = 0x3087;
+        public const int EGL_COLORSPACE_sRGB = 0x3089;
+        public const int EGL_COLORSPACE_LINEAR = 0x308A;
+        public const int EGL_COLOR_BUFFER_TYPE = 0x303F;
+        public const int EGL_CONTEXT_CLIENT_TYPE = 0x3097;
+        public const int EGL_DISPLAY_SCALING = 10000;
+        public const int EGL_HORIZONTAL_RESOLUTION = 0x3090;
+        public const int EGL_LUMINANCE_BUFFER = 0x308F;
+        public const int EGL_LUMINANCE_SIZE = 0x303D;
+        public const int EGL_OPENGL_ES_BIT = 0x0001;
+        public const int EGL_OPENVG_BIT = 0x0002;
+        public const int EGL_OPENGL_ES_API = 0x30A0;
+        public const int EGL_OPENVG_API = 0x30A1;
+        public const int EGL_OPENVG_IMAGE = 0x3096;
+        public const int EGL_PIXEL_ASPECT_RATIO = 0x3092;
+        public const int EGL_RENDERABLE_TYPE = 0x3040;
+        public const int EGL_RENDER_BUFFER = 0x3086;
+        public const int EGL_RGB_BUFFER = 0x308E;
+        public const int EGL_SINGLE_BUFFER = 0x3085;
+        public const int EGL_SWAP_BEHAVIOR = 0x3093;
+        public const int EGL_UNKNOWN = -1;
+        public const int EGL_VERTICAL_RESOLUTION = 0x3091;
+        public const int EGL_CONFORMANT = 0x3042;
+        public const int EGL_CONTEXT_CLIENT_VERSION = 0x3098;
+        public const int EGL_MATCH_NATIVE_PIXMAP = 0x3041;
+        public const int EGL_OPENGL_ES2_BIT = 0x0004;
+        public const int EGL_VG_ALPHA_FORMAT = 0x3088;
+        public const int EGL_VG_ALPHA_FORMAT_NONPRE = 0x308B;
+        public const int EGL_VG_ALPHA_FORMAT_PRE = 0x308C;
+        public const int EGL_VG_ALPHA_FORMAT_PRE_BIT = 0x0040;
+        public const int EGL_VG_COLORSPACE = 0x3087;
+        public const int EGL_VG_COLORSPACE_sRGB = 0x3089;
+        public const int EGL_VG_COLORSPACE_LINEAR = 0x308A;
+        public const int EGL_VG_COLORSPACE_LINEAR_BIT = 0x0020;
+        public const int EGL_DEFAULT_DISPLAY = 0;
+        public const int EGL_MULTISAMPLE_RESOLVE_BOX_BIT = 0x0200;
+        public const int EGL_MULTISAMPLE_RESOLVE = 0x3099;
+        public const int EGL_MULTISAMPLE_RESOLVE_DEFAULT = 0x309A;
+        public const int EGL_MULTISAMPLE_RESOLVE_BOX = 0x309B;
+        public const int EGL_OPENGL_API = 0x30A2;
+        public const int EGL_OPENGL_BIT = 0x0008;
+        public const int EGL_SWAP_BEHAVIOR_PRESERVED_BIT = 0x0400;
+        public const int EGL_CONTEXT_MAJOR_VERSION = 0x3098;
+        public const int EGL_CONTEXT_MINOR_VERSION = 0x30FB;
+        public const int EGL_CONTEXT_OPENGL_PROFILE_MASK = 0x30FD;
+        public const int EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY = 0x31BD;
+        public const int EGL_NO_RESET_NOTIFICATION = 0x31BE;
+        public const int EGL_LOSE_CONTEXT_ON_RESET = 0x31BF;
+        public const int EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT = 0x00000001;
+        public const int EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT = 0x00000002;
+        public const int EGL_CONTEXT_OPENGL_DEBUG = 0x31B0;
+        public const int EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE = 0x31B1;
+        public const int EGL_CONTEXT_OPENGL_ROBUST_ACCESS = 0x31B2;
+        public const int EGL_OPENGL_ES3_BIT = 0x00000040;
+        public const int EGL_CL_EVENT_HANDLE = 0x309C;
+        public const int EGL_SYNC_CL_EVENT = 0x30FE;
+        public const int EGL_SYNC_CL_EVENT_COMPLETE = 0x30FF;
+        public const int EGL_SYNC_PRIOR_COMMANDS_COMPLETE = 0x30F0;
+        public const int EGL_SYNC_TYPE = 0x30F7;
+        public const int EGL_SYNC_STATUS = 0x30F1;
+        public const int EGL_SYNC_CONDITION = 0x30F8;
+        public const int EGL_SIGNALED = 0x30F2;
+        public const int EGL_UNSIGNALED = 0x30F3;
+
+        public const int EGL_SYNC_FLUSH_COMMANDS_BIT = 0x0001;
+
+        public const int EGL_TIMEOUT_EXPIRED = 0x30F5;
+        public const int EGL_CONDITION_SATISFIED = 0x30F6;
+        public const int EGL_NO_SYNC = 0;
+        public const int EGL_SYNC_FENCE = 0x30F9;
+        public const int EGL_GL_COLORSPACE = 0x309D;
+        public const int EGL_GL_COLORSPACE_SRGB = 0x3089;
+        public const int EGL_GL_COLORSPACE_LINEAR = 0x308A;
+        public const int EGL_GL_RENDERBUFFER = 0x30B9;
+        public const int EGL_GL_TEXTURE_2D = 0x30B1;
+        public const int EGL_GL_TEXTURE_LEVEL = 0x30BC;
+        public const int EGL_GL_TEXTURE_3D = 0x30B2;
+        public const int EGL_GL_TEXTURE_ZOFFSET = 0x30BD;
+        public const int EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X = 0x30B3;
+        public const int EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X = 0x30B4;
+        public const int EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y = 0x30B5;
+        public const int EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y = 0x30B6;
+        public const int EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z = 0x30B7;
+        public const int EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z = 0x30B8;
+        public const int EGL_IMAGE_PRESERVED = 0x30D2;
+        public const int EGL_NO_IMAGE = 0;
+
+
+        public const int EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE = 0x3207;
+        public const int EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE = 0x3208;
+
+        //EGL_ANGLE_platform_angle
+        public const int EGL_PLATFORM_ANGLE_ANGLE = 0x3202;
+        public const int EGL_PLATFORM_ANGLE_TYPE_ANGLE = 0x3203;
+        public const int EGL_PLATFORM_ANGLE_MAX_VERSION_MAJOR_ANGLE = 0x3204;
+        public const int EGL_PLATFORM_ANGLE_MAX_VERSION_MINOR_ANGLE = 0x3205;
+        public const int EGL_PLATFORM_ANGLE_DEBUG_LAYERS_ENABLED = 0x3451;
+        public const int EGL_PLATFORM_ANGLE_TYPE_DEFAULT_ANGLE = 0x3206;
+        public const int EGL_PLATFORM_ANGLE_DEVICE_TYPE_HARDWARE_ANGLE = 0x320A;
+        public const int EGL_PLATFORM_ANGLE_DEVICE_TYPE_NULL_ANGLE = 0x345E;
+
+        //EGL_ANGLE_platform_angle_d3d
+        public const int EGL_PLATFORM_ANGLE_DEVICE_TYPE_ANGLE = 0x3209;
+        public const int EGL_PLATFORM_ANGLE_ENABLE_AUTOMATIC_TRIM_ANGLE = 0x320F;
+        public const int EGL_PLATFORM_ANGLE_DEVICE_TYPE_D3D_WARP_ANGLE = 0x320B;
+        public const int EGL_PLATFORM_ANGLE_DEVICE_TYPE_D3D_REFERENCE_ANGLE = 0x320C;
+    }
+}