From bbac75bc1c4e45bcdcb6fecd9f0f99d916ca80ef Mon Sep 17 00:00:00 2001
From: Joost Peters
Date: Wed, 19 Aug 2009 16:23:44 +0000
Subject: PSP: throttle the number of updateScreen() calls

svn-id: r43539
---
 backends/platform/psp/osys_psp_gu.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'backends/platform/psp/osys_psp_gu.cpp')

diff --git a/backends/platform/psp/osys_psp_gu.cpp b/backends/platform/psp/osys_psp_gu.cpp
index 0fb1b4aded..1c83aa4abf 100644
--- a/backends/platform/psp/osys_psp_gu.cpp
+++ b/backends/platform/psp/osys_psp_gu.cpp
@@ -38,6 +38,8 @@
 #define MOUSE_SIZE	128
 #define	KBD_DATA_SIZE	130560
 
+#define	MAX_FPS	30
+
 unsigned int __attribute__((aligned(16))) list[262144];
 unsigned short __attribute__((aligned(16))) clut256[256];
 unsigned short __attribute__((aligned(16))) mouseClut[256];
@@ -295,6 +297,13 @@ void OSystem_PSP_GU::copyRectToScreen(const byte *buf, int pitch, int x, int y,
 }
 
 void OSystem_PSP_GU::updateScreen() {
+	u32 now = getMillis();
+	if (now - _lastScreenUpdate < 1000 / MAX_FPS)
+		return;
+
+	_lastScreenUpdate = now;
+
+
 	sceGuStart(0,list);
 
 	sceGuClearColor(0xff000000);
-- 
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