From 17553add7c13c4dbed678ef01cb25174722b9bd8 Mon Sep 17 00:00:00 2001
From: Xiaohong Bao <bao@lindenlab.com>
Date: Mon, 23 Aug 2010 11:32:58 -0600
Subject: added a toggle "LLGLManager::mDebugGPU" for debugging certain CPUs.
 added more debug code for EXT-6791: [crashhunters] Intel 965 Crash in
 glCopyTexSubImage2D

---
 indra/llrender/llgl.cpp      | 14 ++++++++++++++
 indra/llrender/llgl.h        |  4 ++++
 indra/llrender/llimagegl.cpp | 12 ++++++++----
 3 files changed, 26 insertions(+), 4 deletions(-)

(limited to 'indra/llrender')

diff --git a/indra/llrender/llgl.cpp b/indra/llrender/llgl.cpp
index a3f7a946ec..823208b095 100644
--- a/indra/llrender/llgl.cpp
+++ b/indra/llrender/llgl.cpp
@@ -352,6 +352,8 @@ LLGLManager::LLGLManager() :
 
 	mHasSeparateSpecularColor(FALSE),
 
+	mDebugGPU(FALSE),
+
 	mDriverVersionMajor(1),
 	mDriverVersionMinor(0),
 	mDriverVersionRelease(0),
@@ -519,11 +521,23 @@ bool LLGLManager::initGL()
 		return false;
 	}
 	
+	setToDebugGPU();
 
 	initGLStates();
 	return true;
 }
 
+void LLGLManager::setToDebugGPU()
+{
+	//"MOBILE INTEL(R) 965 EXPRESS CHIP", 
+	if (mGLRenderer.find("INTEL") != std::string::npos && mGLRenderer.find("965") != std::string::npos)
+	{
+		mDebugGPU = TRUE ;
+	}
+
+	return ;
+}
+
 void LLGLManager::getGLInfo(LLSD& info)
 {
 	info["GLInfo"]["GLVendor"] = std::string((const char *)glGetString(GL_VENDOR));
diff --git a/indra/llrender/llgl.h b/indra/llrender/llgl.h
index 91421f3c95..620aa5bee0 100644
--- a/indra/llrender/llgl.h
+++ b/indra/llrender/llgl.h
@@ -119,6 +119,9 @@ public:
 
 	// Misc extensions
 	BOOL mHasSeparateSpecularColor;
+
+	//whether this GPU is in the debug list.
+	BOOL mDebugGPU;
 	
 	S32 mDriverVersionMajor;
 	S32 mDriverVersionMinor;
@@ -147,6 +150,7 @@ private:
 	void initExtensions();
 	void initGLStates();
 	void initGLImages();
+	void setToDebugGPU();
 };
 
 extern LLGLManager gGLManager;
diff --git a/indra/llrender/llimagegl.cpp b/indra/llrender/llimagegl.cpp
index 69ef3f9ed7..ee26f9819c 100644
--- a/indra/llrender/llimagegl.cpp
+++ b/indra/llrender/llimagegl.cpp
@@ -150,12 +150,12 @@ void LLImageGL::checkTexSize(bool forced) const
 			if (gDebugSession)
 			{
 				gFailLog << "wrong texture size and discard level!" << 
-					mWidth << " Height: " << mHeight << " Current Level: " << mCurrentDiscardLevel << std::endl;
+					mWidth << " Height: " << mHeight << " Current Level: " << (S32)mCurrentDiscardLevel << std::endl;
 			}
 			else
 			{
 				llerrs << "wrong texture size and discard level: width: " << 
-					mWidth << " Height: " << mHeight << " Current Level: " << mCurrentDiscardLevel << llendl ;
+					mWidth << " Height: " << mHeight << " Current Level: " << (S32)mCurrentDiscardLevel << llendl ;
 			}
 		}
 
@@ -1057,8 +1057,12 @@ BOOL LLImageGL::setSubImageFromFrameBuffer(S32 fb_x, S32 fb_y, S32 x_pos, S32 y_
 {
 	if (gGL.getTexUnit(0)->bind(this, false, true))
 	{
-		checkTexSize(true) ;
-		llcallstacks << fb_x << " : " << fb_y << " : " << x_pos << " : " << y_pos << " : " << width << " : " << height << llcallstacksendl ;
+		if(gGLManager.mDebugGPU)
+		{
+			llinfos << "Calling glCopyTexSubImage2D(...)" << llendl ;
+			checkTexSize(true) ;
+			llcallstacks << fb_x << " : " << fb_y << " : " << x_pos << " : " << y_pos << " : " << width << " : " << height << llcallstacksendl ;
+		}
 
 		glCopyTexSubImage2D(GL_TEXTURE_2D, 0, fb_x, fb_y, x_pos, y_pos, width, height);
 		mGLTextureCreated = true;
-- 
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