llvertexbuffer.cpp

/** 
 * @file llvertexbuffer.cpp
 * @brief LLVertexBuffer implementation
 *
 * $LicenseInfo:firstyear=2003&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#include "linden_common.h"

#include <boost/static_assert.hpp>
#include "llsys.h"
#include "llvertexbuffer.h"
// #include "llrender.h"
#include "llglheaders.h"
#include "llmemtype.h"
#include "llrender.h"
#include "llvector4a.h"
#include "llglslshader.h"
#include "llmemory.h"


//============================================================================

//static
LLVBOPool LLVertexBuffer::sStreamVBOPool;
LLVBOPool LLVertexBuffer::sDynamicVBOPool;
LLVBOPool LLVertexBuffer::sStreamIBOPool;
LLVBOPool LLVertexBuffer::sDynamicIBOPool;

LLPrivateMemoryPool* LLVertexBuffer::sPrivatePoolp = NULL ;
U32 LLVertexBuffer::sBindCount = 0;
U32 LLVertexBuffer::sSetCount = 0;
S32 LLVertexBuffer::sCount = 0;
S32 LLVertexBuffer::sGLCount = 0;
S32 LLVertexBuffer::sMappedCount = 0;
BOOL LLVertexBuffer::sDisableVBOMapping = FALSE ;
BOOL LLVertexBuffer::sEnableVBOs = TRUE;
U32 LLVertexBuffer::sGLRenderBuffer = 0;
U32 LLVertexBuffer::sGLRenderArray = 0;
U32 LLVertexBuffer::sGLRenderIndices = 0;
U32 LLVertexBuffer::sLastMask = 0;
BOOL LLVertexBuffer::sVBOActive = FALSE;
BOOL LLVertexBuffer::sIBOActive = FALSE;
U32 LLVertexBuffer::sAllocatedBytes = 0;
BOOL LLVertexBuffer::sMapped = FALSE;
BOOL LLVertexBuffer::sUseStreamDraw = TRUE;
BOOL LLVertexBuffer::sPreferStreamDraw = FALSE;
std::vector<U32> LLVertexBuffer::sDeleteList;

const U32 FENCE_WAIT_TIME_NANOSECONDS = 10000;  //1 ms

class LLGLSyncFence : public LLGLFence
{
public:
#ifdef GL_ARB_sync
	GLsync mSync;
#endif
	
	LLGLSyncFence()
	{
#ifdef GL_ARB_sync
		mSync = 0;
#endif
	}

	~LLGLSyncFence()
	{
#ifdef GL_ARB_sync
		if (mSync)
		{
			glDeleteSync(mSync);
		}
#endif
	}

	void placeFence()
	{
#ifdef GL_ARB_sync
		if (mSync)
		{
			glDeleteSync(mSync);
		}
		mSync = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
#endif
	}

	void wait()
	{
#ifdef GL_ARB_sync
		if (mSync)
		{
			while (glClientWaitSync(mSync, 0, FENCE_WAIT_TIME_NANOSECONDS) == GL_TIMEOUT_EXPIRED)
			{ //track the number of times we've waited here
				static S32 waits = 0;
				waits++;
			}
		}
#endif
	}


};

S32 LLVertexBuffer::sTypeSize[LLVertexBuffer::TYPE_MAX] =
{
	sizeof(LLVector4), // TYPE_VERTEX,
	sizeof(LLVector4), // TYPE_NORMAL,
	sizeof(LLVector2), // TYPE_TEXCOORD0,
	sizeof(LLVector2), // TYPE_TEXCOORD1,
	sizeof(LLVector2), // TYPE_TEXCOORD2,
	sizeof(LLVector2), // TYPE_TEXCOORD3,
	sizeof(LLColor4U), // TYPE_COLOR,
	sizeof(U8),		   // TYPE_EMISSIVE
	sizeof(LLVector4), // TYPE_BINORMAL,
	sizeof(F32),	   // TYPE_WEIGHT,
	sizeof(LLVector4), // TYPE_WEIGHT4,
	sizeof(LLVector4), // TYPE_CLOTHWEIGHT,
};

U32 LLVertexBuffer::sGLMode[LLRender::NUM_MODES] = 
{
	GL_TRIANGLES,
	GL_TRIANGLE_STRIP,
	GL_TRIANGLE_FAN,
	GL_POINTS,
	GL_LINES,
	GL_LINE_STRIP,
	GL_QUADS,
	GL_LINE_LOOP,
};


//static
void LLVertexBuffer::setupClientArrays(U32 data_mask, U32& ref_mask)
{
	/*if (LLGLImmediate::sStarted)
	{
		llerrs << "Cannot use LLGLImmediate and LLVertexBuffer simultaneously!" << llendl;
	}*/

	LLGLSLShader* shader = LLGLSLShader::sCurBoundShaderPtr;

	if (ref_mask != data_mask)
	{
		llassert(!LLGLSLShader::sNoFixedFunction || shader != NULL);
		
		U32 mask[] =
		{
			MAP_VERTEX,
			MAP_NORMAL,
			MAP_TEXCOORD0,
			MAP_COLOR,
			MAP_EMISSIVE,
			MAP_WEIGHT,
			MAP_WEIGHT4,
			MAP_BINORMAL,
			MAP_CLOTHWEIGHT,
		};
		
		U32 type[] =
		{
			TYPE_VERTEX,
			TYPE_NORMAL,
			TYPE_TEXCOORD0,
			TYPE_COLOR,
			TYPE_EMISSIVE,
			TYPE_WEIGHT,
			TYPE_WEIGHT4,
			TYPE_BINORMAL,
			TYPE_CLOTHWEIGHT,
		};

		GLenum array[] =
		{
			GL_VERTEX_ARRAY,
			GL_NORMAL_ARRAY,
			GL_TEXTURE_COORD_ARRAY,
			GL_COLOR_ARRAY,
			0,
			0,
			0,