Remove dead code behind Irrlicht version checks

3 files changed, 0 insertions, 40 deletions

diff --git a/src/client/game.cpp b/src/client/game.cpp
index 122e25d8c..94a09537a 100644
--- a/src/client/game.cpp
+++ b/src/client/game.cpp
@@ -1008,10 +1008,6 @@ private:
 	// this happens in pause menu in singleplayer
 	bool m_is_paused = false;
 
-#if IRRLICHT_VERSION_MT_REVISION < 5
-	int m_reset_HW_buffer_counter = 0;
-#endif
-
 #ifdef HAVE_TOUCHSCREENGUI
 	bool m_cache_hold_aux1;
 	bool m_touch_use_crosshair;
@@ -4153,29 +4149,6 @@ void Game::updateFrame(ProfilerGraph *graph, RunStats *stats, f32 dtime,
 	/*
 		==================== End scene ====================
 	*/
-#if IRRLICHT_VERSION_MT_REVISION < 5
-	if (++m_reset_HW_buffer_counter > 500) {
-		/*
-		  Periodically remove all mesh HW buffers.
-
-		  Work around for a quirk in Irrlicht where a HW buffer is only
-		  released after 20000 iterations (triggered from endScene()).
-
-		  Without this, all loaded but unused meshes will retain their HW
-		  buffers for at least 5 minutes, at which point looking up the HW buffers
-		  becomes a bottleneck and the framerate drops (as much as 30%).
-
-		  Tests showed that numbers between 50 and 1000 are good, so picked 500.
-		  There are no other public Irrlicht APIs that allow interacting with the
-		  HW buffers without tracking the status of every individual mesh.
-
-		  The HW buffers for _visible_ meshes will be reinitialized in the next frame.
-		*/
-		infostream << "Game::updateFrame(): Removing all HW buffers." << std::endl;
-		driver->removeAllHardwareBuffers();
-		m_reset_HW_buffer_counter = 0;
-	}
-#endif
 
 	driver->endScene();
 
diff --git a/src/client/mapblock_mesh.cpp b/src/client/mapblock_mesh.cpp
index e6ccb764f..dd663d59e 100644
--- a/src/client/mapblock_mesh.cpp
+++ b/src/client/mapblock_mesh.cpp
@@ -1395,14 +1395,6 @@ MapBlockMesh::MapBlockMesh(MeshMakeData *data, v3s16 camera_offset):
 MapBlockMesh::~MapBlockMesh()
 {
 	for (scene::IMesh *m : m_mesh) {
-#if IRRLICHT_VERSION_MT_REVISION < 5
-		if (m_enable_vbo) {
-			for (u32 i = 0; i < m->getMeshBufferCount(); i++) {
-				scene::IMeshBuffer *buf = m->getMeshBuffer(i);
-				RenderingEngine::get_video_driver()->removeHardwareBuffer(buf);
-			}
-		}
-#endif
 		m->drop();
 	}
 	for (MinimapMapblock *block : m_minimap_mapblocks)
diff --git a/src/client/sky.cpp b/src/client/sky.cpp
index 0ab7398f2..aacc47250 100644
--- a/src/client/sky.cpp
+++ b/src/client/sky.cpp
@@ -39,13 +39,8 @@ static video::SMaterial baseMaterial()
 {
 	video::SMaterial mat;
 	mat.Lighting = false;
-#if IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR > 8
 	mat.ZBuffer = video::ECFN_DISABLED;
 	mat.ZWriteEnable = video::EZW_OFF;
-#else
-	mat.ZWriteEnable = false;
-	mat.ZBuffer = video::ECFN_NEVER;
-#endif
 	mat.AntiAliasing = 0;
 	mat.TextureLayer[0].TextureWrapU = video::ETC_CLAMP_TO_EDGE;
 	mat.TextureLayer[0].TextureWrapV = video::ETC_CLAMP_TO_EDGE;