//---------------------------------------------------------------------
void PanelOverlayElement::initialise(void)
{
bool init = !mInitialised;
OverlayContainer::initialise();
if (init)
{
// Setup render op in advance
mRenderOp.vertexData = OGRE_NEW VertexData();
// Vertex declaration: 1 position, add texcoords later depending on #layers
// Create as separate buffers so we can lock & discard separately
VertexDeclaration* decl = mRenderOp.vertexData->vertexDeclaration;
decl->addElement(POSITION_BINDING, 0, VET_FLOAT3, VES_POSITION);
// Basic vertex data
mRenderOp.vertexData->vertexStart = 0;
mRenderOp.vertexData->vertexCount = 4;
// No indexes & issue as a strip
mRenderOp.useIndexes = false;
mRenderOp.operationType = RenderOperation::OT_TRIANGLE_STRIP;
mRenderOp.useGlobalInstancingVertexBufferIsAvailable = false;
mInitialised = true;
_restoreManualHardwareResources();
}
}
//---------------------------------------------------------------------
void TextAreaOverlayElement::checkMemoryAllocation( size_t numChars )
{
if( mAllocSize < numChars)
{
mAllocSize = numChars;
// Create and bind new buffers
// Note that old buffers will be deleted automatically through reference counting
_restoreManualHardwareResources();
}
}
