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

@@ -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));

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;

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;

indra/newview/lldynamictexture.cpp

@@ -170,9 +170,12 @@ void LLViewerDynamicTexture::postRender(BOOL success)
 			if(!mGLTexturep->getHasGLTexture())
 			{
 				generateGLTexture() ;
-			}
-			llcallstacks << "class type: " << (S32)getType() << llcallstacksendl ;
+			}			
 
+			if(gGLManager.mDebugGPU)
+			{
+				LLGLState::dumpStates() ;
+			}
 			success = mGLTexturep->setSubImageFromFrameBuffer(0, 0, mOrigin.mX, mOrigin.mY, mFullWidth, mFullHeight);
 		}
 	}
@@ -211,11 +214,16 @@ BOOL LLViewerDynamicTexture::updateAllInstances()
 		{
 			LLViewerDynamicTexture *dynamicTexture = *iter;
 			if (dynamicTexture->needsRender())
-			{
+			{				
+				if(gGLManager.mDebugGPU)
+				{				
+					llinfos << "class type: " << (S32)dynamicTexture->getType() << llendl;
+					LLGLState::dumpStates() ;
+				}
+
 				glClear(GL_DEPTH_BUFFER_BIT);
 				gDepthDirty = TRUE;
-				
-				
+								
 				gGL.color4f(1,1,1,1);
 				dynamicTexture->preRender();	// Must be called outside of startRender()
 				result = FALSE;