bool FrameBuffer::setupSubWindow(FBNativeWindowType p_window,
int p_x, int p_y,
int p_width, int p_height, float zRot)
{
bool success = false;
if (s_theFrameBuffer) {
s_theFrameBuffer->m_lock.lock();
FrameBuffer *fb = s_theFrameBuffer;
if (!fb->m_subWin) {
// create native subwindow for FB display output
fb->m_subWin = createSubWindow(p_window,
&fb->m_subWinDisplay,
p_x,p_y,p_width,p_height);
if (fb->m_subWin) {
fb->m_nativeWindow = p_window;
// create EGLSurface from the generated subwindow
fb->m_eglSurface = s_egl.eglCreateWindowSurface(fb->m_eglDisplay,
fb->m_eglConfig,
fb->m_subWin,
NULL);
if (fb->m_eglSurface == EGL_NO_SURFACE) {
ERR("Failed to create surface\n");
destroySubWindow(fb->m_subWinDisplay, fb->m_subWin);
fb->m_subWin = (EGLNativeWindowType)0;
}
else if (fb->bindSubwin_locked()) {
// Subwin creation was successfull,
// update viewport and z rotation and draw
// the last posted color buffer.
s_gl.glViewport(0, 0, p_width, p_height);
fb->m_zRot = zRot;
fb->post( fb->m_lastPostedColorBuffer, false );
fb->unbind_locked();
success = true;
}
}
}
s_theFrameBuffer->m_lock.unlock();
}
return success;
}
bool FrameBuffer::removeSubWindow()
{
bool removed = false;
if (s_theFrameBuffer) {
s_theFrameBuffer->m_lock.lock();
if (s_theFrameBuffer->m_subWin) {
s_egl.eglMakeCurrent(s_theFrameBuffer->m_eglDisplay, NULL, NULL, NULL);
s_egl.eglDestroySurface(s_theFrameBuffer->m_eglDisplay,
s_theFrameBuffer->m_eglSurface);
destroySubWindow(s_theFrameBuffer->m_subWin);
s_theFrameBuffer->m_eglSurface = EGL_NO_SURFACE;
s_theFrameBuffer->m_subWin = (EGLNativeWindowType)0;
removed = true;
}
s_theFrameBuffer->m_lock.unlock();
}
return removed;
}
