Split LLTexLayerSetBuffer into llappearance portion, and viewer-specific LLViewerTexLayerSetBuffer

2 files changed, 146 insertions, 0 deletions

diff --git a/indra/llappearance/lltexlayer.cpp b/indra/llappearance/lltexlayer.cpp
index bf2fd1e30d..0d3219c4e0 100644
--- a/indra/llappearance/lltexlayer.cpp
+++ b/indra/llappearance/lltexlayer.cpp
@@ -40,6 +40,7 @@
 #include "lltexturemanagerbridge.h"
 #include "llui.h"
 #include "llwearable.h"
+#include "llvertexbuffer.h"
 #include "llviewervisualparam.h"
 
 //#include "../tools/imdebug/imdebug.h"
@@ -89,6 +90,92 @@ private:
 	param_alpha_info_list_t		mParamAlphaInfoList;
 };
 
+//-----------------------------------------------------------------------------
+// LLTexLayerSetBuffer
+// The composite image that a LLViewerTexLayerSet writes to.  Each LLViewerTexLayerSet has one.
+//-----------------------------------------------------------------------------
+
+LLTexLayerSetBuffer::LLTexLayerSetBuffer(LLTexLayerSet* const owner) :
+	mTexLayerSet(owner)
+{
+}
+
+LLTexLayerSetBuffer::~LLTexLayerSetBuffer()
+{
+}
+
+void LLTexLayerSetBuffer::pushProjection() const
+{
+	gGL.matrixMode(LLRender::MM_PROJECTION);
+	gGL.pushMatrix();
+	gGL.loadIdentity();
+	gGL.ortho(0.0f, getCompositeWidth(), 0.0f, getCompositeHeight(), -1.0f, 1.0f);
+
+	gGL.matrixMode(LLRender::MM_MODELVIEW);
+	gGL.pushMatrix();
+	gGL.loadIdentity();
+}
+
+void LLTexLayerSetBuffer::popProjection() const
+{
+	gGL.matrixMode(LLRender::MM_PROJECTION);
+	gGL.popMatrix();
+
+	gGL.matrixMode(LLRender::MM_MODELVIEW);
+	gGL.popMatrix();
+}
+
+// virtual
+void LLTexLayerSetBuffer::preRenderTexLayerSet()
+{
+	// Set up an ortho projection
+	pushProjection();
+}
+
+// virtual
+void LLTexLayerSetBuffer::postRenderTexLayerSet(BOOL success)
+{
+	popProjection();
+}
+
+BOOL LLTexLayerSetBuffer::renderTexLayerSet()
+{
+	// Default color mask for tex layer render
+	gGL.setColorMask(true, true);
+
+	BOOL success = TRUE;
+	
+	bool use_shaders = LLGLSLShader::sNoFixedFunction;
+
+	if (use_shaders)
+	{
+		gAlphaMaskProgram.bind();
+		gAlphaMaskProgram.setMinimumAlpha(0.004f);
+	}
+
+	LLVertexBuffer::unbind();
+
+	// Composite the color data
+	LLGLSUIDefault gls_ui;
+	success &= mTexLayerSet->render( getCompositeOriginX(), getCompositeOriginY(), 
+									 getCompositeWidth(), getCompositeHeight() );
+	gGL.flush();
+
+	midRenderTexLayerSet(success);
+
+	if (use_shaders)
+	{
+		gAlphaMaskProgram.unbind();
+	}
+
+	LLVertexBuffer::unbind();
+	
+	// reset GL state
+	gGL.setColorMask(true, true);
+	gGL.setSceneBlendType(LLRender::BT_ALPHA);
+
+	return success;
+}
 
 //-----------------------------------------------------------------------------
 // LLTexLayerSetInfo
@@ -381,6 +468,28 @@ const std::string LLTexLayerSet::getBodyRegionName() const
 }
 
 
+void LLTexLayerSet::destroyComposite()
+{
+	if( mComposite )
+	{
+		mComposite = NULL;
+	}
+}
+
+LLTexLayerSetBuffer* LLTexLayerSet::getComposite()
+{
+	if (!mComposite)
+	{
+		createComposite();
+	}
+	return mComposite;
+}
+
+const LLTexLayerSetBuffer* LLTexLayerSet::getComposite() const
+{
+	return mComposite;
+}
+
 void LLTexLayerSet::renderAlphaMaskTextures(S32 x, S32 y, S32 width, S32 height, bool forceClear)
 {
 	const LLTexLayerSetInfo *info = getInfo();
diff --git a/indra/llappearance/lltexlayer.h b/indra/llappearance/lltexlayer.h
index 5a413e929f..4f2ee5b045 100644
--- a/indra/llappearance/lltexlayer.h
+++ b/indra/llappearance/lltexlayer.h
@@ -40,6 +40,7 @@ class LLXmlTreeNode;
 class LLTexLayerSet;
 class LLTexLayerSetInfo;
 class LLTexLayerInfo;
+class LLTexLayerSetBuffer;
 class LLWearable;
 class LLViewerVisualParam;
 
@@ -178,10 +179,16 @@ private:
 //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 class LLTexLayerSet
 {
+	friend class LLTexLayerSetBuffer;
 public:
 	LLTexLayerSet(LLAvatarAppearance* const appearance);
 	virtual ~LLTexLayerSet();
 
+	LLTexLayerSetBuffer*		getComposite();
+	const LLTexLayerSetBuffer* 	getComposite() const; // Do not create one if it doesn't exist.
+	virtual void				createComposite() = 0;
+	void						destroyComposite();
+
 	const LLTexLayerSetInfo* 	getInfo() const 			{ return mInfo; }
 	BOOL						setInfo(const LLTexLayerSetInfo *info); // This sets mInfo and calls initialization functions
 
@@ -199,6 +206,7 @@ public:
 	
 	LLAvatarAppearance*			getAvatarAppearance()	const		{ return mAvatarAppearance; }
 	const std::string			getBodyRegionName() const;
+	BOOL						hasComposite() const 		{ return (mComposite.notNull()); }
 	LLAvatarAppearanceDefines::EBakedTextureIndex getBakedTexIndex() { return mBakedTexIndex; }
 	void						setBakedTexIndex(LLAvatarAppearanceDefines::EBakedTextureIndex index) { mBakedTexIndex = index; }
 	BOOL						isVisible() const 			{ return mIsVisible; }
@@ -209,6 +217,7 @@ protected:
 	typedef std::vector<LLTexLayerInterface *> layer_list_t;
 	layer_list_t				mLayerList;
 	layer_list_t				mMaskLayerList;
+	LLPointer<LLTexLayerSetBuffer>	mComposite;
 	LLAvatarAppearance*	const	mAvatarAppearance; // note: backlink only; don't make this an LLPointer.
 	BOOL						mIsVisible;
 
@@ -242,6 +251,34 @@ protected:
 };
 
 //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+// LLTexLayerSetBuffer
+//
+// The composite image that a LLTexLayerSet writes to.  Each LLTexLayerSet has one.
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+class LLTexLayerSetBuffer : public virtual LLRefCount
+{
+	LOG_CLASS(LLTexLayerSetBuffer);
+
+public:
+	LLTexLayerSetBuffer(LLTexLayerSet* const owner);
+	virtual ~LLTexLayerSetBuffer();
+
+protected:
+	void					pushProjection() const;
+	void					popProjection() const;
+	virtual void			preRenderTexLayerSet();
+	virtual void			midRenderTexLayerSet(BOOL success) {}
+	virtual void			postRenderTexLayerSet(BOOL success);
+	virtual S32				getCompositeOriginX() const = 0;
+	virtual S32				getCompositeOriginY() const = 0;
+	virtual S32				getCompositeWidth() const = 0;
+	virtual S32				getCompositeHeight() const = 0;
+	BOOL					renderTexLayerSet();
+
+	LLTexLayerSet* const	mTexLayerSet;
+};
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 // LLTexLayerStaticImageList
 //
 //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~