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();
}
void GraphicsContext3DInternal::swapBuffers()
{
if (s_loggingEnabled)
m_webGLFPSTimer->tick();
LOGWEBGL("+swapBuffers()");
MutexLocker lock(m_fboMutex);
FBO* fbo = m_currentFBO;
if (fbo == 0)
return;
makeContextCurrent();
bool mustRestoreFBO = (m_boundFBO != fbo->fbo());
if (mustRestoreFBO) {
glBindFramebuffer(GL_FRAMEBUFFER, fbo->fbo());
}
// Create the fence sync and notify the sync thread
fbo->setSync();
//[CAPPFIX_WEB_WEBGL] - Improve UI Response Begin
if (!m_needImproveUIResponseMode)
//[CAPPFIX_WEB_WEBGL_END]
#if USE(SHARED_TEXTURE_WEBGL)
glFinish();
#else
glFlush();
#endif
m_queuedBuffers.append(fbo);
m_threadCondition.broadcast();
#if USE(SHARED_TEXTURE_WEBGL)
// Dequeue a new buffer
fbo = dequeueBuffer();
#else
//[CAPPFIX_WEB_WEBGL] - Improve UI Response Begin
int tick = 0;
if (!m_needImproveUIResponseMode)
tick = getTickCount();
//[CAPPFIX_WEB_WEBGL_END]
// Dequeue a new buffer
fbo = dequeueBuffer();
//[CAPPFIX_WEB_WEBGL] - Improve UI Response Begin
if (!m_needImproveUIResponseMode && getTickCount() - tick > SWP_WebGL_IUR_Time) {
m_needImproveUIResponseMode = true;
LOGWEBGL("On needImproveUIResponseMode");
}
//[CAPPFIX_WEB_WEBGL_END]
#endif
m_currentFBO = fbo;
if (!mustRestoreFBO) {
m_boundFBO = m_currentFBO->fbo();
}
glBindFramebuffer(GL_FRAMEBUFFER, m_boundFBO);
m_canvasDirty = false;
m_layerComposited = true;
LOGWEBGL("-swapBuffers()");
}