408cbaf233
Fixes https://github.com/flutter/flutter/issues/163315 Fixes https://github.com/flutter/flutter/issues/163521 Fixes https://github.com/flutter/flutter/issues/142641 OpenGL has an inverted coordinate system (bottom left is zero) compared to Metal/Vulkan (top left is zero). We handle this by rendering things upside down on OpenGL. Unfortunately this can leak out of the renderer via readback (toImage), so we need to make sure to undo the inversion. This is not performed for the "TextureCoordinateSystem::kUploadFromHost" state as that indicates the texture is already "right side up".
Flutter Engine
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