void Canvas::initPlayback(int multiSampleSamples)
{
m_bIsPlaying = true;
m_pRootNode->connectDisplay();
m_MultiSampleSamples = multiSampleSamples;
m_pVertexArray = VertexArrayPtr(new VertexArray(2000, 3000));
}
void DivNode::connectDisplay()
{
AreaNode::connectDisplay();
for (unsigned i = 0; i < getNumChildren(); ++i) {
getChild(i)->connectDisplay();
}
m_pClipVertexes = VertexArrayPtr(new VertexArray());
}
void DivNode::disconnect(bool bKill)
{
for (unsigned i = 0; i < getNumChildren(); ++i) {
getChild(i)->disconnect(bKill);
}
if (m_pClipVertexes) {
m_pClipVertexes = VertexArrayPtr();
}
AreaNode::disconnect(bKill);
}
void Canvas::stopPlayback(bool bIsAbort)
{
if (m_bIsPlaying) {
if (!bIsAbort) {
m_PlaybackEndSignal.emit();
}
m_pRootNode->disconnect(true);
m_pRootNode = CanvasNodePtr();
m_IDMap.clear();
m_bIsPlaying = false;
m_pVertexArray = VertexArrayPtr();
}
}
VertexArrayPtr RenderContext::createVertexArray(VertexDescription description, VertexBufferPtr buffer) {
VertexArrayPtr vao = VertexArrayPtr(new VertexArray());
vao->bind();
buffer->bind();
int offset = 0;
for(VertexDescriptionElement e : description) {
if(e.shaderAttribLocation() != -1) {
glVertexAttribPointer(e.shaderAttribLocation(), e.numberOfComponents(), (int)e.type(), GL_FALSE, description.sizeInBytes(), (char*)nullptr + offset);
glEnableVertexAttribArray(e.shaderAttribLocation());
}
offset += e.sizeInBytes();
}
buffer->release();
vao->release();
return vao;
}