1 files changed, 34 insertions, 21 deletions

diff --git a/indra/llrender/llvertexbuffer.cpp b/indra/llrender/llvertexbuffer.cpp
index 6a7cec3bad..f168b3af14 100755
--- a/indra/llrender/llvertexbuffer.cpp
+++ b/indra/llrender/llvertexbuffer.cpp
@@ -85,6 +85,7 @@ const U32 LL_VBO_POOL_SEED_COUNT = vbo_block_index(LL_VBO_POOL_MAX_SEED_SIZE);
 //static
 LLVBOPool LLVertexBuffer::sStreamVBOPool(GL_STREAM_DRAW_ARB, GL_ARRAY_BUFFER_ARB);
 LLVBOPool LLVertexBuffer::sDynamicVBOPool(GL_DYNAMIC_DRAW_ARB, GL_ARRAY_BUFFER_ARB);
+LLVBOPool LLVertexBuffer::sDynamicCopyVBOPool(GL_DYNAMIC_COPY_ARB, GL_ARRAY_BUFFER_ARB);
 LLVBOPool LLVertexBuffer::sStreamIBOPool(GL_STREAM_DRAW_ARB, GL_ELEMENT_ARRAY_BUFFER_ARB);
 LLVBOPool LLVertexBuffer::sDynamicIBOPool(GL_DYNAMIC_DRAW_ARB, GL_ELEMENT_ARRAY_BUFFER_ARB);
 
@@ -199,7 +200,10 @@ volatile U8* LLVBOPool::allocate(U32& name, U32 size, bool for_seed)
 		if (LLVertexBuffer::sDisableVBOMapping || mUsage != GL_DYNAMIC_DRAW_ARB)
 		{
 			glBufferDataARB(mType, size, 0, mUsage);
-			ret = (U8*) ll_aligned_malloc_16(size);
+			if (mUsage != GL_DYNAMIC_COPY_ARB)
+			{ //data will be provided by application
+				ret = (U8*) ll_aligned_malloc(size, 64);
+			}
 		}
 		else
 		{ //always use a true hint of static draw when allocating non-client-backed buffers
@@ -252,7 +256,7 @@ void LLVBOPool::release(U32 name, volatile U8* buffer, U32 size)
 	llassert(vbo_block_size(size) == size);
 
 	deleteBuffer(name);
-	ll_aligned_free_16((U8*) buffer);
+	ll_aligned_free((U8*) buffer);
 
 	if (mType == GL_ARRAY_BUFFER_ARB)
 	{
@@ -306,7 +310,7 @@ void LLVBOPool::cleanup()
 			
 			if (r.mClientData)
 			{
-				ll_aligned_free_16((void*) r.mClientData);
+				ll_aligned_free((void*) r.mClientData);
 			}
 
 			l.pop_front();
@@ -412,6 +416,7 @@ void LLVertexBuffer::seedPools()
 {
 	sStreamVBOPool.seedPool();
 	sDynamicVBOPool.seedPool();
+	sDynamicCopyVBOPool.seedPool();
 	sStreamIBOPool.seedPool();
 	sDynamicIBOPool.seedPool();
 }
@@ -753,10 +758,10 @@ void LLVertexBuffer::drawRange(U32 mode, U32 start, U32 end, U32 count, U32 indi
 	U16* idx = ((U16*) getIndicesPointer())+indices_offset;
 
 	stop_glerror();
-		LLGLSLShader::startProfile();
-		glDrawRangeElements(sGLMode[mode], start, end, count, GL_UNSIGNED_SHORT, 
+	LLGLSLShader::startProfile();
+	glDrawRangeElements(sGLMode[mode], start, end, count, GL_UNSIGNED_SHORT, 
 		idx);
-		LLGLSLShader::stopProfile(count, mode);
+	LLGLSLShader::stopProfile(count, mode);
 	stop_glerror();
 
 	
@@ -910,6 +915,7 @@ void LLVertexBuffer::cleanupClass()
 	sDynamicIBOPool.cleanup();
 	sStreamVBOPool.cleanup();
 	sDynamicVBOPool.cleanup();
+	sDynamicCopyVBOPool.cleanup();
 
 	if(sPrivatePoolp)
 	{
@@ -946,6 +952,8 @@ S32 LLVertexBuffer::determineUsage(S32 usage)
 	
 	if (ret_usage && ret_usage != GL_STREAM_DRAW_ARB)
 	{ //only stream_draw and dynamic_draw are supported when using VBOs, dynamic draw is the default
+		if (ret_usage != GL_DYNAMIC_COPY_ARB)
+		{
 		if (sDisableVBOMapping)
 		{ //always use stream draw if VBO mapping is disabled
 			ret_usage = GL_STREAM_DRAW_ARB;
@@ -955,6 +963,7 @@ S32 LLVertexBuffer::determineUsage(S32 usage)
 			ret_usage = GL_DYNAMIC_DRAW_ARB;
 		}
 	}
+	}
 	
 	return ret_usage;
 }
@@ -1102,10 +1111,15 @@ void LLVertexBuffer::genBuffer(U32 size)
 	{
 		mMappedData = sStreamVBOPool.allocate(mGLBuffer, mSize);
 	}
-	else
+	else if (mUsage == GL_DYNAMIC_DRAW_ARB)
 	{
 		mMappedData = sDynamicVBOPool.allocate(mGLBuffer, mSize);
 	}
+	else
+	{
+		mMappedData = sDynamicCopyVBOPool.allocate(mGLBuffer, mSize);
+	}
+	
 	
 	sGLCount++;
 }
@@ -2144,21 +2158,14 @@ bool LLVertexBuffer::bindGLBuffer(bool force_bind)
 
 	if (useVBOs() && (force_bind || (mGLBuffer && (mGLBuffer != sGLRenderBuffer || !sVBOActive))))
 	{
-		LLFastTimer t(FTM_BIND_GL_BUFFER);
-		/*if (sMapped)
-		{
-			llerrs << "VBO bound while another VBO mapped!" << llendl;
-		}*/
+		//LLFastTimer t(FTM_BIND_GL_BUFFER); <-- this timer is showing up as a hotspot (irony)
+		
 		glBindBufferARB(GL_ARRAY_BUFFER_ARB, mGLBuffer);
 		sGLRenderBuffer = mGLBuffer;
 		sBindCount++;
 		sVBOActive = true;
 
-		if (mGLArray)
-		{
-			llassert(sGLRenderArray == mGLArray);
-			//mCachedRenderBuffer = mGLBuffer;
-		}
+		llassert(!mGLArray || sGLRenderArray == mGLArray);
 
 		ret = true;
 	}
@@ -2236,7 +2243,7 @@ void LLVertexBuffer::setBuffer(U32 data_mask)
 					required_mask |= required;
 				}
 			}
-        
+
 			if ((data_mask & required_mask) != required_mask)
 			{
 				
@@ -2440,7 +2447,8 @@ void LLVertexBuffer::setupVertexBuffer(U32 data_mask)
 		if (data_mask & MAP_COLOR)
 		{
 			S32 loc = TYPE_COLOR;
-			void* ptr = (void*)(base + mOffsets[TYPE_COLOR]);
+			//bind emissive instead of color pointer if emissive is present
+			void* ptr = (data_mask & MAP_EMISSIVE) ? (void*)(base + mOffsets[TYPE_EMISSIVE]) : (void*)(base + mOffsets[TYPE_COLOR]);
 			glVertexAttribPointerARB(loc, 4, GL_UNSIGNED_BYTE, GL_TRUE, LLVertexBuffer::sTypeSize[TYPE_COLOR], ptr);
 		}
 		if (data_mask & MAP_EMISSIVE)
@@ -2448,6 +2456,12 @@ void LLVertexBuffer::setupVertexBuffer(U32 data_mask)
 			S32 loc = TYPE_EMISSIVE;
 			void* ptr = (void*)(base + mOffsets[TYPE_EMISSIVE]);
 			glVertexAttribPointerARB(loc, 4, GL_UNSIGNED_BYTE, GL_TRUE, LLVertexBuffer::sTypeSize[TYPE_EMISSIVE], ptr);
+
+			if (!(data_mask & MAP_COLOR))
+			{ //map emissive to color channel when color is not also being bound to avoid unnecessary shader swaps
+				loc = TYPE_COLOR;
+				glVertexAttribPointerARB(loc, 4, GL_UNSIGNED_BYTE, GL_TRUE, LLVertexBuffer::sTypeSize[TYPE_EMISSIVE], ptr);
+			}
 		}
 		if (data_mask & MAP_WEIGHT)
 		{
@@ -2533,8 +2547,7 @@ void LLVertexBuffer::setupVertexBuffer(U32 data_mask)
 LLVertexBuffer::MappedRegion::MappedRegion(S32 type, S32 index, S32 count)
 : mType(type), mIndex(index), mCount(count)
 { 
-	llassert(mType == LLVertexBuffer::TYPE_INDEX || 
-			mType < LLVertexBuffer::TYPE_TEXTURE_INDEX);
+	mEnd = mIndex+mCount;	
 }