zfreeze: cache vertex positions

Suggested by degasus.

1 files changed, 12 insertions, 2 deletions

diff --git a/Source/Core/VideoCommon/VertexLoader_Position.cpp b/Source/Core/VideoCommon/VertexLoader_Position.cpp
index ed6b4587b3..fd17fbf4d7 100644
--- a/Source/Core/VideoCommon/VertexLoader_Position.cpp
+++ b/Source/Core/VideoCommon/VertexLoader_Position.cpp
@@ -32,7 +32,12 @@ void LOADERDECL Pos_ReadDirect(VertexLoader* loader)
 	DataReader src(g_video_buffer_read_ptr, nullptr);
 
 	for (int i = 0; i < N; ++i)
-		dst.Write(PosScale(src.Read<T>(), scale));
+	{
+		float value = PosScale(src.Read<T>(), scale);
+		if (loader->m_counter < 3)
+			VertexLoaderManager::position_cache[loader->m_counter][i] = value;
+		dst.Write(value);
+	}
 
 	g_vertex_manager_write_ptr = dst.GetPointer();
 	g_video_buffer_read_ptr = src.GetPointer();
@@ -52,7 +57,12 @@ void LOADERDECL Pos_ReadIndex(VertexLoader* loader)
 	DataReader dst(g_vertex_manager_write_ptr, nullptr);
 
 	for (int i = 0; i < N; ++i)
-		dst.Write(PosScale(Common::FromBigEndian(data[i]), scale));
+	{
+		float value = PosScale(Common::FromBigEndian(data[i]), scale);
+		if (loader->m_counter < 3)
+			VertexLoaderManager::position_cache[loader->m_counter][i] = value;
+		dst.Write(value);
+	}
 
 	g_vertex_manager_write_ptr = dst.GetPointer();
 	LOG_VTX();