From d2f7a9974fe80ad1c0cec6914753f8a1a721134c Mon Sep 17 00:00:00 2001
From: sum2012 <consignpo@gmail.com>
Date: Sat, 26 Apr 2014 04:41:01 +0800
Subject: [PATCH] Add sceDisplaySetMode error code base on JPCSP

---
 Core/HLE/sceDisplay.cpp | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/Core/HLE/sceDisplay.cpp b/Core/HLE/sceDisplay.cpp
index 12c3741e0e..584ad54273 100644
--- a/Core/HLE/sceDisplay.cpp
+++ b/Core/HLE/sceDisplay.cpp
@@ -101,6 +101,7 @@ static int numVBlanksSinceFlip;
 static u64 frameStartTicks;
 const int hCountPerVblank = 286;
 
+const int PSP_DISPLAY_MODE_LCD = 0;
 
 std::vector<WaitVBlankInfo> vblankWaitingThreads;
 // Key is the callback id it was for, or if no callback, the thread id.
@@ -637,8 +638,17 @@ u32 sceDisplayIsVblank() {
 }
 
 u32 sceDisplaySetMode(int displayMode, int displayWidth, int displayHeight) {
-	DEBUG_LOG(SCEDISPLAY,"sceDisplaySetMode(%i, %i, %i)", displayMode, displayWidth, displayHeight);
+	if (displayWidth <= 0 || displayHeight <= 0 || (displayWidth & 0x7) != 0) {
+		WARN_LOG(SCEDISPLAY, "sceDisplaySetMode INVALID SIZE (%i, %i, %i)", displayMode, displayWidth, displayHeight);
+		return SCE_KERNEL_ERROR_INVALID_SIZE;
+	}
+	
+	if (displayMode != PSP_DISPLAY_MODE_LCD) {
+		WARN_LOG(SCEDISPLAY, "sceDisplaySetMode INVALID MODE(%i, %i, %i)", displayMode, displayWidth, displayHeight);
+		return SCE_KERNEL_ERROR_INVALID_MODE;
+	}
 
+	DEBUG_LOG(SCEDISPLAY,"sceDisplaySetMode(%i, %i, %i)", displayMode, displayWidth, displayHeight);
 	if (!hasSetMode) {
 		gpu->InitClear();
 		hasSetMode = true;