From a58b68735235f664828aecf069e84dc0461ebf9c Mon Sep 17 00:00:00 2001
From: Connor McLaughlin <mclaughc@outlook.com>
Date: Sun, 15 Sep 2019 01:13:23 +1000
Subject: [PATCH] GPU: Cap batch sizes at 1024 vertices, flush if exceeded

---
 src/pse/gpu_hw.cpp | 7 +++++--
 src/pse/gpu_hw.h   | 2 ++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/pse/gpu_hw.cpp b/src/pse/gpu_hw.cpp
index 023510254..60f1e8145 100644
--- a/src/pse/gpu_hw.cpp
+++ b/src/pse/gpu_hw.cpp
@@ -377,8 +377,11 @@ void GPU_HW::DispatchRenderCommand(RenderCommand rc, u32 num_vertices)
   }
 
   // flush when the command changes
-  if (!m_batch_vertices.empty() && m_batch_command.bits != rc.bits)
-    FlushRender();
+  if (!m_batch_vertices.empty())
+  {
+    if (m_batch_vertices.size() >= MAX_BATCH_VERTEX_COUNT || m_batch_command.bits != rc.bits)
+      FlushRender();
+  }
 
   m_batch_command = rc;
   LoadVertices(rc, num_vertices);
diff --git a/src/pse/gpu_hw.h b/src/pse/gpu_hw.h
index 32225f73c..a84c3a99e 100644
--- a/src/pse/gpu_hw.h
+++ b/src/pse/gpu_hw.h
@@ -11,6 +11,8 @@ public:
   virtual ~GPU_HW();
 
 protected:
+  static constexpr u32 MAX_BATCH_VERTEX_COUNT = 1024;
+
   struct HWVertex
   {
     s32 x;