1 files changed, 15 insertions, 10 deletions

diff --git a/indra/llrender/llrendertarget.h b/indra/llrender/llrendertarget.h
index 094b58b562..e1a51304f1 100644
--- a/indra/llrender/llrendertarget.h
+++ b/indra/llrender/llrendertarget.h
@@ -57,39 +57,44 @@
 
 */
 
-class LLMultisampleBuffer;
-
 class LLRenderTarget
 {
 public:
 	//whether or not to use FBO implementation
 	static bool sUseFBO; 
+	static U32 sBytesAllocated;
 
 	LLRenderTarget();
-	virtual ~LLRenderTarget();
+	~LLRenderTarget();
 
 	//allocate resources for rendering
 	//must be called before use
 	//multiple calls will release previously allocated resources
-	void allocate(U32 resx, U32 resy, U32 color_fmt, bool depth, bool stencil, LLTexUnit::eTextureType usage = LLTexUnit::TT_TEXTURE, bool use_fbo = false, S32 samples = 0);
+	bool allocate(U32 resx, U32 resy, U32 color_fmt, bool depth, bool stencil, LLTexUnit::eTextureType usage = LLTexUnit::TT_TEXTURE, bool use_fbo = false, S32 samples = 0);
+
+	//resize existing attachments to use new resolution and color format
+	// CAUTION: if the GL runs out of memory attempting to resize, this render target will be undefined
+	// DO NOT use for screen space buffers or for scratch space for an image that might be uploaded
+	// DO use for render targets that resize often and aren't likely to ruin someone's day if they break
+	void resize(U32 resx, U32 resy, U32 color_fmt);
 
 	//add color buffer attachment
 	//limit of 4 color attachments per render target
-	virtual void addColorAttachment(U32 color_fmt);
+	bool addColorAttachment(U32 color_fmt);
 
 	//allocate a depth texture
-	virtual void allocateDepth();
+	bool allocateDepth();
 
 	//share depth buffer with provided render target
-	virtual void shareDepthBuffer(LLRenderTarget& target);
+	void shareDepthBuffer(LLRenderTarget& target);
 
 	//free any allocated resources
 	//safe to call redundantly
-	virtual void release();
+	void release();
 
 	//bind target for rendering
 	//applies appropriate viewport
-	virtual void bindTarget();
+	void bindTarget();
 
 	//unbind target for rendering
 	static void unbindTarget();
@@ -141,13 +146,13 @@ protected:
 	U32 mResX;
 	U32 mResY;
 	std::vector<U32> mTex;
+	std::vector<U32> mInternalFormat;
 	U32 mFBO;
 	U32 mDepth;
 	bool mStencil;
 	bool mUseDepth;
 	bool mRenderDepth;
 	LLTexUnit::eTextureType mUsage;
-	U32 mSamples;
 	
 	static LLRenderTarget* sBoundTarget;
 };