//---------------------------------------------------------------------
void RenderSystem::setGlobalInstanceVertexBuffer( const HardwareVertexBufferSharedPtr val )
{
if ( !val.isNull() && !val->getIsInstanceData() )
{
OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
"A none instance data vertex buffer was set to be the global instance vertex buffer.",
"RenderSystem::setGlobalInstanceVertexBuffer");
}
mGlobalInstanceVertexBuffer = val;
}
//------------------------------------------------------------------------
void TerrainBatch::destroyGpuVertexBackupData()
{
if (mGpuVertexData)
{
HardwareVertexBufferSharedPtr destPosbuf = mGpuVertexData->vertexBufferBinding->getBuffer(TerrainTileRender::POSITION_BUFFER);
if ( destPosbuf.isNull() == false )
{
destPosbuf->freeSystemMemoryBuffer();
}
}
}
//------------------------------------------------------------------------
void TerrainBatch::checkAndUpdateGpuVertexBackupData()
{
if ( mGpuVertexData )
{
HardwareVertexBufferSharedPtr destPosbuf = mGpuVertexData->vertexBufferBinding->getBuffer(TerrainTileRender::POSITION_BUFFER);
if ( destPosbuf.isNull() == false )
{
destPosbuf->createSystemMemoryBuffer();
{
updateVertexData( mVertexRectInTile );
}
destPosbuf->freeSystemMemoryBuffer();
}
}
}
//------------------------------------------------------------------------
void TerrainBatch::updateVertexData( const Ogre::Rect& vertexRectInTile )
{
Vector3 center = mBoundingBox.getCenter();
Ogre::Rect dirtyRect = mVertexRectInTile.intersect( vertexRectInTile );
if ( mGpuVertexData && (dirtyRect.isNull() == false) )
{
mOneVertexSize = mTileRender->getOneVertexSize();
////////////////////////////////////////////////////////////////////////////////
Ogre::VertexData* tileVertexData = mTileRender->getCpuVertexData();
uint16 srcPosRowSkip = 0;
unsigned char * srcRootPosBuf = 0;
unsigned char * srcRowPosBuf = 0;
HardwareVertexBufferSharedPtr srcPosbuf = tileVertexData->vertexBufferBinding->getBuffer(TerrainTileRender::POSITION_BUFFER);
long destOffsetX = dirtyRect.left <= mVertexRectInTile.left ? 0 : (dirtyRect.left - mVertexRectInTile.left) ;
long destOffsetY = dirtyRect.top <= mVertexRectInTile.top ? 0 : (dirtyRect.top - mVertexRectInTile.top) ;
uint16 destPosRowSkip = 0;
size_t destRowPos = 0;
HardwareVertexBufferSharedPtr destPosbuf = mGpuVertexData->vertexBufferBinding->getBuffer(TerrainTileRender::POSITION_BUFFER);
if (!srcPosbuf.isNull() && !destPosbuf.isNull())
{
srcPosRowSkip = mTileRender->getVertexSideSize() * mOneVertexSize;
srcRootPosBuf = static_cast<unsigned char*>(srcPosbuf->lock(HardwareBuffer::HBL_READ_ONLY));
// skip src buffer in by left/top
srcRowPosBuf = srcRootPosBuf;
srcRowPosBuf += dirtyRect.top * srcPosRowSkip + dirtyRect.left * mOneVertexSize;
destPosRowSkip = mVertexSideNum * mOneVertexSize;
// skip dest pos in by left/top
destRowPos = destOffsetY * destPosRowSkip + destOffsetX * mOneVertexSize;
///////////////////////////////////////////////////////////////////////////////////////
{
size_t destRowHeadPos = destRowPos;
size_t rowCopyLen = (dirtyRect.width() + 1) * mOneVertexSize;
for (uint16 y = dirtyRect.top; y <= dirtyRect.bottom; y ++)
{
destPosbuf->writeData( destRowHeadPos, rowCopyLen, srcRowPosBuf );
srcRowPosBuf += srcPosRowSkip;
destRowHeadPos += destPosRowSkip;
}
}
///////////////////////////////////////////////////////////////////////////////////////
//{
// unsigned char * pRootPosBuf = static_cast<unsigned char*>(destPosbuf->lock( HardwareBuffer::HBL_NORMAL ));
// {
// pRootPosBuf += destRowPos;
// unsigned char * destRowHeadPos = pRootPosBuf;
// unsigned char * destRowPixelPos = pRootPosBuf;
// for (uint16 y = dirtyRect.top; y <= dirtyRect.bottom; y ++)
// {
// destRowPixelPos = destRowHeadPos;
// for (uint16 x = dirtyRect.left; x <= dirtyRect.right; x ++)
// {
// float* pPosBuf = static_cast<float*>(static_cast<void*>(destRowPixelPos));
// if (pPosBuf)
// {
// //position
// *pPosBuf++ = *pPosBuf - center.x;
// *pPosBuf++;
// *pPosBuf++ = *pPosBuf - center.z;
// }
// destRowPixelPos += mOneVertexSize;
// }
// destRowHeadPos += destPosRowSkip;
// }
// }
// destPosbuf->unlock();
//}
///////////////////////////////////////////////////////////////////////////////////////
srcPosbuf->unlock();
//destPosbuf->unlock();
}
}
}
