More flexible memory manager (#307)

* Keep track mapped buffers with fixed offsets

* Started rewriting the memory manager

* Initial support for MapPhysicalMemory and UnmapPhysicalMemory, other tweaks

* MapPhysicalMemory/UnmapPhysicalMemory support, other tweaks

* Rebased

* Optimize the map/unmap physical memory svcs

* Integrate shared font support

* Fix address space reserve alignment

* Some fixes related to gpu memory mapping

* Some cleanup

* Only try uploading const buffers that are really used

* Check if memory region is contiguous

* Rebased

* Add missing count increment on IsRegionModified

* Check for reads/writes outside of the address space, optimize translation with a tail call

4 files changed, 26 insertions, 14 deletions

diff --git a/Ryujinx.Graphics/Gal/IGalShader.cs b/Ryujinx.Graphics/Gal/IGalShader.cs
index a9bd1381..5174c039 100644
--- a/Ryujinx.Graphics/Gal/IGalShader.cs
+++ b/Ryujinx.Graphics/Gal/IGalShader.cs
@@ -9,6 +9,7 @@ namespace Ryujinx.Graphics.Gal
 
         void Create(IGalMemory Memory, long VpAPos, long Key, GalShaderType Type);
 
+        IEnumerable<ShaderDeclInfo> GetConstBufferUsage(long Key);
         IEnumerable<ShaderDeclInfo> GetTextureUsage(long Key);
 
         void EnsureTextureBinding(string UniformName, int Value);
diff --git a/Ryujinx.Graphics/Gal/OpenGL/OGLPipeline.cs b/Ryujinx.Graphics/Gal/OpenGL/OGLPipeline.cs
index 54f984cd..c9e7f6c3 100644
--- a/Ryujinx.Graphics/Gal/OpenGL/OGLPipeline.cs
+++ b/Ryujinx.Graphics/Gal/OpenGL/OGLPipeline.cs
@@ -279,7 +279,7 @@ namespace Ryujinx.Graphics.Gal.OpenGL
             {
                 if (Stage != null)
                 {
-                    foreach (ShaderDeclInfo DeclInfo in Stage.UniformUsage)
+                    foreach (ShaderDeclInfo DeclInfo in Stage.ConstBufferUsage)
                     {
                         long Key = New.ConstBufferKeys[(int)Stage.Type][DeclInfo.Cbuf];
 
diff --git a/Ryujinx.Graphics/Gal/OpenGL/OGLShader.cs b/Ryujinx.Graphics/Gal/OpenGL/OGLShader.cs
index 4792bc5e..9c7b8668 100644
--- a/Ryujinx.Graphics/Gal/OpenGL/OGLShader.cs
+++ b/Ryujinx.Graphics/Gal/OpenGL/OGLShader.cs
@@ -72,8 +72,18 @@ namespace Ryujinx.Graphics.Gal.OpenGL
             return new OGLShaderStage(
                 Type,
                 Program.Code,
-                Program.Textures,
-                Program.Uniforms);
+                Program.Uniforms,
+                Program.Textures);
+        }
+
+        public IEnumerable<ShaderDeclInfo> GetConstBufferUsage(long Key)
+        {
+            if (Stages.TryGetValue(Key, out OGLShaderStage Stage))
+            {
+                return Stage.ConstBufferUsage;
+            }
+
+            return Enumerable.Empty<ShaderDeclInfo>();
         }
 
         public IEnumerable<ShaderDeclInfo> GetTextureUsage(long Key)
@@ -224,7 +234,7 @@ namespace Ryujinx.Graphics.Gal.OpenGL
             {
                 if (Stage != null)
                 {
-                    foreach (ShaderDeclInfo DeclInfo in Stage.UniformUsage)
+                    foreach (ShaderDeclInfo DeclInfo in Stage.ConstBufferUsage)
                     {
                         int BlockIndex = GL.GetUniformBlockIndex(ProgramHandle, DeclInfo.Name);
 
diff --git a/Ryujinx.Graphics/Gal/OpenGL/OGLShaderProgram.cs b/Ryujinx.Graphics/Gal/OpenGL/OGLShaderProgram.cs
index 731994ce..c4e6a881 100644
--- a/Ryujinx.Graphics/Gal/OpenGL/OGLShaderProgram.cs
+++ b/Ryujinx.Graphics/Gal/OpenGL/OGLShaderProgram.cs
@@ -1,6 +1,7 @@
 using OpenTK.Graphics.OpenGL;
 using System;
 using System.Collections.Generic;
+using System.Linq;
 
 namespace Ryujinx.Graphics.Gal.OpenGL
 {
@@ -23,19 +24,19 @@ namespace Ryujinx.Graphics.Gal.OpenGL
 
         public string Code { get; private set; }
 
-        public IEnumerable<ShaderDeclInfo> TextureUsage { get; private set; }
-        public IEnumerable<ShaderDeclInfo> UniformUsage { get; private set; }
+        public IEnumerable<ShaderDeclInfo> ConstBufferUsage { get; private set; }
+        public IEnumerable<ShaderDeclInfo> TextureUsage     { get; private set; }
 
         public OGLShaderStage(
-            GalShaderType Type,
-            string Code,
-            IEnumerable<ShaderDeclInfo> TextureUsage,
-            IEnumerable<ShaderDeclInfo> UniformUsage)
+            GalShaderType               Type,
+            string                      Code,
+            IEnumerable<ShaderDeclInfo> ConstBufferUsage,
+            IEnumerable<ShaderDeclInfo> TextureUsage)
         {
-            this.Type = Type;
-            this.Code = Code;
-            this.TextureUsage = TextureUsage;
-            this.UniformUsage = UniformUsage;
+            this.Type             = Type;
+            this.Code             = Code;
+            this.ConstBufferUsage = ConstBufferUsage;
+            this.TextureUsage     = TextureUsage;
         }
 
         public void Compile()