From f77e238629b8567d6954f181e3a0d8b9a205ee5a Mon Sep 17 00:00:00 2001
From: athrxx <athrxx@scummvm.org>
Date: Sun, 6 Sep 2020 18:45:34 +0200
Subject: [PATCH] KYRA: (EOB/SegaCD) - make use of Common::ObjectPool

The priority render chain can go up to several thousand objects. So this might improve performance.
---
 engines/kyra/graphics/screen_eob_segacd.cpp | 10 +++++++++-
 engines/kyra/graphics/screen_eob_segacd.h   | 12 ++++++++++--
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/engines/kyra/graphics/screen_eob_segacd.cpp b/engines/kyra/graphics/screen_eob_segacd.cpp
index 986aec86696..691df2b356c 100644
--- a/engines/kyra/graphics/screen_eob_segacd.cpp
+++ b/engines/kyra/graphics/screen_eob_segacd.cpp
@@ -933,7 +933,11 @@ template<bool hflip> void SegaRenderer::renderLineFragment(uint8 *dst, uint8 *ma
 #undef mRenderLineFragment
 
 void SegaRenderer::initPrioRenderTask(uint8 *dst, uint8 *mask, const uint8 *src, int start, int end, uint8 pal, bool hflip) {
+#if SEGA_USE_MEMPOOL
+	_prioChainEnd =	new (_prioRenderMemPool) PrioTileRenderObj(_prioChainEnd, dst, mask, src, start, end, pal, hflip);
+#else
 	_prioChainEnd = new PrioTileRenderObj(_prioChainEnd, dst, mask, src, start, end, pal, hflip);
+#endif
 	if (!_prioChainStart)
 		_prioChainStart = _prioChainEnd;
 }
@@ -942,7 +946,11 @@ void SegaRenderer::clearPrioChain() {
 	while (_prioChainEnd) {
 		_prioChainEnd->_next = 0;
 		PrioTileRenderObj *e = _prioChainEnd->_pred;
+#if SEGA_USE_MEMPOOL
+		_prioRenderMemPool.deleteChunk(_prioChainEnd);
+#else
 		delete _prioChainEnd;
+#endif
 		_prioChainEnd = e;
 	}
 	_prioChainStart = 0;
@@ -1110,7 +1118,7 @@ void SegaCDFont::drawChar(uint16 c, byte *dst, int pitch, int xOffs, int yOffs)
 				dst++;
 			if ((x & 7) == 7)
 				dst += 28;
- 		}
+		}
 		dst = dst2 + 4;
 		if ((++yOffs & 7) == 0)
 			dst = dst + (pitch << 5) - 32;
diff --git a/engines/kyra/graphics/screen_eob_segacd.h b/engines/kyra/graphics/screen_eob_segacd.h
index 72b575fccb9..e390af0b9fb 100644
--- a/engines/kyra/graphics/screen_eob_segacd.h
+++ b/engines/kyra/graphics/screen_eob_segacd.h
@@ -25,11 +25,16 @@
 
 #ifdef ENABLE_EOB
 
+#define SEGA_PERFORMANCE		true
+#define SEGA_USE_MEMPOOL		true
+
 #include "kyra/graphics/screen_eob.h"
 
-namespace Kyra {
+#if SEGA_USE_MEMPOOL
+#include "common/memorypool.h"
+#endif
 
-#define SEGA_PERFORMANCE		true
+namespace Kyra {
 
 class SegaRenderer {
 public:
@@ -141,6 +146,9 @@ private:
 		PrioTileRenderObj *_next;
 	};
 
+#if SEGA_USE_MEMPOOL
+	Common::ObjectPool<PrioTileRenderObj> _prioRenderMemPool;
+#endif
 	PrioTileRenderObj *_prioChainStart, *_prioChainEnd;
 	uint16 _screenW, _screenH, _blocksW, _blocksH;
 	Screen_EoB *_screen;