From 900a84ae0a90ae13c8c3f5158eff85c68a953362 Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Wed, 27 Jun 2018 01:32:28 -0300
Subject: Fix vertex buffer size on the gpu when the draw vertex count is less
 than the buffer size, added a few more registers (currently not implemented)

---
 Ryujinx.HLE/Gpu/Engines/NvGpuEngine3d.cs    | 26 ++++++++++++++------------
 Ryujinx.HLE/Gpu/Engines/NvGpuEngine3dReg.cs |  5 +++++
 2 files changed, 19 insertions(+), 12 deletions(-)

(limited to 'Ryujinx.HLE')

diff --git a/Ryujinx.HLE/Gpu/Engines/NvGpuEngine3d.cs b/Ryujinx.HLE/Gpu/Engines/NvGpuEngine3d.cs
index 02461d5d..1663d4c5 100644
--- a/Ryujinx.HLE/Gpu/Engines/NvGpuEngine3d.cs
+++ b/Ryujinx.HLE/Gpu/Engines/NvGpuEngine3d.cs
@@ -79,6 +79,8 @@ namespace Ryujinx.HLE.Gpu.Engines
 
             Gpu.Renderer.Shader.BindProgram();
 
+            SetCullFace();
+            SetDepth();
             SetAlphaBlending();
 
             UploadTextures(Vmm, Keys);
@@ -98,8 +100,7 @@ namespace Ryujinx.HLE.Gpu.Engines
 
             SetFrameBuffer(Vmm, 0);
 
-            //TODO: Enable this once the frame buffer problems are fixed.
-            //Gpu.Renderer.ClearBuffers(Layer, Flags);
+            Gpu.Renderer.Rasterizer.ClearBuffers(Layer, Flags);
         }
 
         private void SetFrameBuffer(NvGpuVmm Vmm, int FbIndex)
@@ -177,6 +178,16 @@ namespace Ryujinx.HLE.Gpu.Engines
             throw new ArgumentOutOfRangeException(nameof(Program));
         }
 
+        private void SetCullFace()
+        {
+            //TODO.
+        }
+
+        private void SetDepth()
+        {
+            //TODO.
+        }
+
         private void SetAlphaBlending()
         {
             //TODO: Support independent blend properly.
@@ -434,16 +445,7 @@ namespace Ryujinx.HLE.Gpu.Engines
 
                 int Stride = Control & 0xfff;
 
-                long VbSize = 0;
-
-                if (IndexCount != 0)
-                {
-                    VbSize = (VertexEndPos - VertexPosition) + 1;
-                }
-                else
-                {
-                    VbSize = VertexCount * Stride;
-                }
+                long VbSize = (VertexEndPos - VertexPosition) + 1;
 
                 bool VboCached = Gpu.Renderer.Rasterizer.IsVboCached(VertexPosition, VbSize);
 
diff --git a/Ryujinx.HLE/Gpu/Engines/NvGpuEngine3dReg.cs b/Ryujinx.HLE/Gpu/Engines/NvGpuEngine3dReg.cs
index de2b2eef..64866ce9 100644
--- a/Ryujinx.HLE/Gpu/Engines/NvGpuEngine3dReg.cs
+++ b/Ryujinx.HLE/Gpu/Engines/NvGpuEngine3dReg.cs
@@ -15,7 +15,9 @@ namespace Ryujinx.HLE.Gpu.Engines
         VertexArrayFirst     = 0x35d,
         VertexArrayCount     = 0x35e,
         VertexAttribNFormat  = 0x458,
+        DepthTestEnable      = 0x4b3,
         IBlendEnable         = 0x4b9,
+        DepthTestFunction    = 0x4c3,
         BlendSeparateAlpha   = 0x4cf,
         BlendEquationRgb     = 0x4d0,
         BlendFuncSrcRgb      = 0x4d1,
@@ -35,6 +37,9 @@ namespace Ryujinx.HLE.Gpu.Engines
         IndexArrayFormat     = 0x5f6,
         IndexBatchFirst      = 0x5f7,
         IndexBatchCount      = 0x5f8,
+        CullFaceEnable       = 0x646,
+        FrontFace            = 0x647,
+        CullFace             = 0x648,
         QueryAddress         = 0x6c0,
         QuerySequence        = 0x6c2,
         QueryControl         = 0x6c3,
-- 
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