STORM-1980 Merge changes Oz made (new way of detecting an agent has changed regions)

Modify code to make use of the changed callback

1 files changed, 34 insertions, 14 deletions

diff --git a/indra/llrender/llrendertarget.cpp b/indra/llrender/llrendertarget.cpp
index b82b370d6e..fe8110904d 100755
--- a/indra/llrender/llrendertarget.cpp
+++ b/indra/llrender/llrendertarget.cpp
@@ -364,35 +364,55 @@ void LLRenderTarget::release()
 
 		sBytesAllocated -= mResX*mResY*4;
 	}
-	else if (mUseDepth && mFBO)
-	{ //detach shared depth buffer
+	else if (mFBO)
+	{
 		glBindFramebuffer(GL_FRAMEBUFFER, mFBO);
-		if (mStencil)
-		{ //attached as a renderbuffer
-			glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
-			glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, 0);
-			mStencil = false;
+
+		if (mUseDepth)
+		{ //detach shared depth buffer
+			if (mStencil)
+			{ //attached as a renderbuffer
+				glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
+				glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, 0);
+				mStencil = false;
+			}
+			else
+			{ //attached as a texture
+				glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, LLTexUnit::getInternalType(mUsage), 0, 0);
+			}
+			mUseDepth = false;
 		}
-		else
-		{ //attached as a texture
-			glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, LLTexUnit::getInternalType(mUsage), 0, 0);
+	}
+
+	// Detach any extra color buffers (e.g. SRGB spec buffers)
+	//
+	if (mFBO && (mTex.size() > 1))
+	{		
+		S32 z;
+		for (z = mTex.size() - 1; z >= 1; z--)
+		{
+			sBytesAllocated -= mResX*mResY*4;
+			glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0+z, LLTexUnit::getInternalType(mUsage), 0, 0);
+			stop_glerror();
+			LLImageGL::deleteTextures(1, &mTex[z]);
 		}
-		mUseDepth = false;
 	}
 
 	if (mFBO)
 	{
 		glDeleteFramebuffers(1, (GLuint *) &mFBO);
+		stop_glerror();
 		mFBO = 0;
 	}
 
 	if (mTex.size() > 0)
 	{
-		sBytesAllocated -= mResX*mResY*4*mTex.size();
-		LLImageGL::deleteTextures(mTex.size(), &mTex[0]);
+		sBytesAllocated -= mResX*mResY*4;
+		LLImageGL::deleteTextures(1, &mTex[0]);
+	}
+
 		mTex.clear();
 		mInternalFormat.clear();
-	}
 	
 	mResX = mResY = 0;