From 8e1adb95cf7f67b976f105f4cac26d3ff2986057 Mon Sep 17 00:00:00 2001
From: mpnico <mpnico@gmail.com>
Date: Thu, 26 Aug 2021 23:50:28 +0200
Subject: Add support for HLE macros and accelerate
 MultiDrawElementsIndirectCount #2 (#2557)

* Add support for HLE macros and accelerate MultiDrawElementsIndirectCount

* Add missing barrier

* Fix index buffer count

* Add support check for each macro hle before use

* Add missing xml doc

Co-authored-by: gdkchan <gab.dark.100@gmail.com>
---
 Ryujinx.Graphics.OpenGL/Pipeline.cs | 58 ++++++++++++++++++++++++++++++++++++-
 1 file changed, 57 insertions(+), 1 deletion(-)

(limited to 'Ryujinx.Graphics.OpenGL/Pipeline.cs')

diff --git a/Ryujinx.Graphics.OpenGL/Pipeline.cs b/Ryujinx.Graphics.OpenGL/Pipeline.cs
index be526fa9..24dd97f9 100644
--- a/Ryujinx.Graphics.OpenGL/Pipeline.cs
+++ b/Ryujinx.Graphics.OpenGL/Pipeline.cs
@@ -166,6 +166,11 @@ namespace Ryujinx.Graphics.OpenGL
             }
         }
 
+        public void CommandBufferBarrier()
+        {
+            GL.MemoryBarrier(MemoryBarrierFlags.CommandBarrierBit);
+        }
+
         public void CopyBuffer(BufferHandle source, BufferHandle destination, int srcOffset, int dstOffset, int size)
         {
             Buffer.Copy(source, destination, srcOffset, dstOffset, size);
@@ -543,6 +548,57 @@ namespace Ryujinx.Graphics.OpenGL
             _tfEnabled = false;
         }
 
+        public void MultiDrawIndirectCount(BufferRange indirectBuffer, BufferRange parameterBuffer, int maxDrawCount, int stride)
+        {
+            if (!_program.IsLinked)
+            {
+                Logger.Debug?.Print(LogClass.Gpu, "Draw error, shader not linked.");
+                return;
+            }
+
+            PreDraw();
+
+            GL.BindBuffer((BufferTarget)All.DrawIndirectBuffer, indirectBuffer.Handle.ToInt32());
+            GL.BindBuffer((BufferTarget)All.ParameterBuffer, parameterBuffer.Handle.ToInt32());
+
+            GL.MultiDrawArraysIndirectCount(
+                _primitiveType,
+                (IntPtr)indirectBuffer.Offset,
+                (IntPtr)parameterBuffer.Offset,
+                maxDrawCount,
+                stride);
+
+            PostDraw();
+        }
+
+        public void MultiDrawIndexedIndirectCount(BufferRange indirectBuffer, BufferRange parameterBuffer, int maxDrawCount, int stride)
+        {
+            if (!_program.IsLinked)
+            {
+                Logger.Debug?.Print(LogClass.Gpu, "Draw error, shader not linked.");
+                return;
+            }
+
+            PreDraw();
+
+            _vertexArray.SetRangeOfIndexBuffer();
+
+            GL.BindBuffer((BufferTarget)All.DrawIndirectBuffer, indirectBuffer.Handle.ToInt32());
+            GL.BindBuffer((BufferTarget)All.ParameterBuffer, parameterBuffer.Handle.ToInt32());
+
+            GL.MultiDrawElementsIndirectCount(
+                _primitiveType,
+                (Version46)_elementsType,
+                (IntPtr)indirectBuffer.Offset,
+                (IntPtr)parameterBuffer.Offset,
+                maxDrawCount,
+                stride);
+
+            _vertexArray.RestoreIndexBuffer();
+
+            PostDraw();
+        }
+
         public void SetAlphaTest(bool enable, float reference, CompareOp op)
         {
             if (!enable)
@@ -741,7 +797,7 @@ namespace Ryujinx.Graphics.OpenGL
 
             EnsureVertexArray();
 
-            _vertexArray.SetIndexBuffer(buffer.Handle);
+            _vertexArray.SetIndexBuffer(buffer);
         }
 
         public void SetLogicOpState(bool enable, LogicalOp op)
-- 
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