bool GraphicsContext3DInternal::lockFrontBuffer(T& image, SkRect& rect)
{
LOGWEBGL("GraphicsContext3DInternal::lockFrontBuffer()");
MutexLocker lock(m_fboMutex);
FBO* fbo = m_frontFBO;
if (!fbo || !fbo->image()) {
LOGWEBGL("-GraphicsContext3DInternal::lockFrontBuffer(), fbo = %p", fbo);
return false;
}
fbo->setLocked(true);
image = (T)(fbo->image());
RenderObject* renderer = m_canvas->renderer();
if (renderer && renderer->isBox()) {
RenderBox* box = (RenderBox*)renderer;
rect.setXYWH(box->borderLeft() + box->paddingLeft(),
box->borderTop() + box->paddingTop(),
box->contentWidth(),
box->contentHeight());
}
return true;
}
void GraphicsContext3DInternal::releaseFrontBuffer()
{
LOGWEBGL("GraphicsContext3DInternal::releaseFrontBuffer()");
MutexLocker lock(m_fboMutex);
FBO* fbo = m_frontFBO;
if (fbo) {
fbo->setLocked(false);
if (fbo->sync() != EGL_NO_SYNC_KHR) {
eglDestroySyncKHR(m_dpy, fbo->sync());
}
fbo->setSync();
}
updateFrontBuffer();
}