Custom PPSSPP shaders

[YouFeng]

I want to ask how to use code to get depth buffer,gl_depth not work.I had converted some simple Reshade's shaders like Aces tonemap,watchdogTonemap,FakeHDR into Android PPSSPP.But the ScreenSpaceAmbientOcclusion needs depth buffer.Can I use code to get it like reshade's getDepth void？