[Scummvm-cvs-logs] SF.net SVN: scummvm:[43539] scummvm/trunk/backends/platform/psp

[joostp at users.sourceforge.net]

Revision: 43539
          http://scummvm.svn.sourceforge.net/scummvm/?rev=43539&view=rev
Author:   joostp
Date:     2009-08-19 16:23:44 +0000 (Wed, 19 Aug 2009)

Log Message:
-----------
PSP: throttle the number of updateScreen() calls

Modified Paths:
--------------
    scummvm/trunk/backends/platform/psp/osys_psp.cpp
    scummvm/trunk/backends/platform/psp/osys_psp.h
    scummvm/trunk/backends/platform/psp/osys_psp_gu.cpp

Modified: scummvm/trunk/backends/platform/psp/osys_psp.cpp
===================================================================
--- scummvm/trunk/backends/platform/psp/osys_psp.cpp	2009-08-19 16:23:26 UTC (rev 43538)
+++ scummvm/trunk/backends/platform/psp/osys_psp.cpp	2009-08-19 16:23:44 UTC (rev 43539)
@@ -75,7 +75,7 @@
 };
 
 
-OSystem_PSP::OSystem_PSP() : _screenWidth(0), _screenHeight(0), _overlayWidth(0), _overlayHeight(0), _offscreen(0), _overlayBuffer(0), _overlayVisible(false), _shakePos(0), _mouseBuf(0), _prevButtons(0), _lastPadCheck(0), _padAccel(0), _mixer(0) {
+OSystem_PSP::OSystem_PSP() : _screenWidth(0), _screenHeight(0), _overlayWidth(0), _overlayHeight(0), _offscreen(0), _overlayBuffer(0), _overlayVisible(false), _shakePos(0), _lastScreenUpdate(0), _mouseBuf(0), _prevButtons(0), _lastPadCheck(0), _padAccel(0), _mixer(0) {
 
 	memset(_palette, 0, sizeof(_palette));
 

Modified: scummvm/trunk/backends/platform/psp/osys_psp.h
===================================================================
--- scummvm/trunk/backends/platform/psp/osys_psp.h	2009-08-19 16:23:26 UTC (rev 43538)
+++ scummvm/trunk/backends/platform/psp/osys_psp.h	2009-08-19 16:23:44 UTC (rev 43539)
@@ -59,6 +59,7 @@
 	uint16  _palette[256];
 	bool	_overlayVisible;
 	uint32	_shakePos;
+	uint32	_lastScreenUpdate;
 
 	Graphics::Surface _framebuffer;
 

Modified: scummvm/trunk/backends/platform/psp/osys_psp_gu.cpp
===================================================================
--- scummvm/trunk/backends/platform/psp/osys_psp_gu.cpp	2009-08-19 16:23:26 UTC (rev 43538)
+++ scummvm/trunk/backends/platform/psp/osys_psp_gu.cpp	2009-08-19 16:23:44 UTC (rev 43539)
@@ -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::updateScreen() {
+	u32 now = getMillis();
+	if (now - _lastScreenUpdate < 1000 / MAX_FPS)
+		return;
+
+	_lastScreenUpdate = now;
+
+
 	sceGuStart(0,list);
 
 	sceGuClearColor(0xff000000);


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