From f41eb95e13b88a55572887c3b5e4890bcb84edb2 Mon Sep 17 00:00:00 2001
From: bunnei <bunneidev@gmail.com>
Date: Sun, 29 Apr 2018 16:23:31 -0400
Subject: [PATCH] maxwell_3d: Reset vertex counts after drawing.
---
src/video_core/engines/maxwell_3d.cpp | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/src/video_core/engines/maxwell_3d.cpp b/src/video_core/engines/maxwell_3d.cpp
index 835e5fe78..23e70cd8a 100644
--- a/src/video_core/engines/maxwell_3d.cpp
+++ b/src/video_core/engines/maxwell_3d.cpp
@@ -208,6 +208,16 @@ void Maxwell3D::DrawArrays() {
const bool is_indexed{regs.index_array.count && !regs.vertex_buffer.count};
VideoCore::g_renderer->Rasterizer()->AccelerateDrawBatch(is_indexed);
+
+ // TODO(bunnei): Below, we reset vertex count so that we can use these registers to determine if
+ // the game is trying to draw indexed or direct mode. This needs to be verified on HW still -
+ // it's possible that it is incorrect and that there is some other register used to specify the
+ // drawing mode.
+ if (is_indexed) {
+ regs.index_array.count = 0;
+ } else {
+ regs.vertex_buffer.count = 0;
+ }
}
void Maxwell3D::ProcessCBBind(Regs::ShaderStage stage) {