Send data to OpenGL host without client-side copies (#285)

* Directly send host address to buffer data

* Cleanup OGLShader

* Directly copy vertex and index data too

* Revert shader bind "cache"

* Address feedback

2 files changed, 12 insertions, 6 deletions

diff --git a/Ryujinx.HLE/Gpu/Engines/NvGpuEngine3d.cs b/Ryujinx.HLE/Gpu/Engines/NvGpuEngine3d.cs
index dce25a5e..c3e7a77f 100644
--- a/Ryujinx.HLE/Gpu/Engines/NvGpuEngine3d.cs
+++ b/Ryujinx.HLE/Gpu/Engines/NvGpuEngine3d.cs
@@ -560,9 +560,9 @@ namespace Ryujinx.HLE.Gpu.Engines
 
                     if (Cb.Enabled)
                     {
-                        byte[] Data = Vmm.ReadBytes(Cb.Position, (uint)Cb.Size);
+                        IntPtr DataAddress = Vmm.GetHostAddress(Cb.Position, Cb.Size);
 
-                        Gpu.Renderer.Shader.SetConstBuffer(BasePosition + (uint)Offset, Cbuf, Data);
+                        Gpu.Renderer.Shader.SetConstBuffer(BasePosition + (uint)Offset, Cbuf, Cb.Size, DataAddress);
                     }
                 }
             }
@@ -595,9 +595,9 @@ namespace Ryujinx.HLE.Gpu.Engines
 
                 if (!IboCached || Vmm.IsRegionModified(IboKey, (uint)IbSize, NvGpuBufferType.Index))
                 {
-                    byte[] Data = Vmm.ReadBytes(IndexPosition, (uint)IbSize);
+                    IntPtr DataAddress = Vmm.GetHostAddress(IndexPosition, IbSize);
 
-                    Gpu.Renderer.Rasterizer.CreateIbo(IboKey, Data);
+                    Gpu.Renderer.Rasterizer.CreateIbo(IboKey, IbSize, DataAddress);
                 }
 
                 Gpu.Renderer.Rasterizer.SetIndexArray(IbSize, IndexFormat);
@@ -659,9 +659,9 @@ namespace Ryujinx.HLE.Gpu.Engines
 
                 if (!VboCached || Vmm.IsRegionModified(VboKey, VbSize, NvGpuBufferType.Vertex))
                 {
-                    byte[] Data = Vmm.ReadBytes(VertexPosition, VbSize);
+                    IntPtr DataAddress = Vmm.GetHostAddress(VertexPosition, VbSize);
 
-                    Gpu.Renderer.Rasterizer.CreateVbo(VboKey, Data);
+                    Gpu.Renderer.Rasterizer.CreateVbo(VboKey, (int)VbSize, DataAddress);
                 }
 
                 Gpu.Renderer.Rasterizer.SetVertexArray(Stride, VboKey, Attribs[Index].ToArray());
diff --git a/Ryujinx.HLE/Gpu/Memory/NvGpuVmm.cs b/Ryujinx.HLE/Gpu/Memory/NvGpuVmm.cs
index 0c81dd15..7b23e49f 100644
--- a/Ryujinx.HLE/Gpu/Memory/NvGpuVmm.cs
+++ b/Ryujinx.HLE/Gpu/Memory/NvGpuVmm.cs
@@ -1,5 +1,6 @@
 using ChocolArm64.Memory;
 using Ryujinx.Graphics.Gal;
+using System;
 using System.Collections.Concurrent;
 
 namespace Ryujinx.HLE.Gpu.Memory
@@ -279,6 +280,11 @@ namespace Ryujinx.HLE.Gpu.Memory
             return Cache.IsRegionModified(Memory, BufferType, PA, Size);
         }
 
+        public IntPtr GetHostAddress(long Position, long Size)
+        {
+            return Memory.GetHostAddress(GetPhysicalAddress(Position), Size);
+        }
+
         public byte ReadByte(long Position)
         {
             Position = GetPhysicalAddress(Position);