hschlueter 87ab96d352 Move program initialization to texture processor constructor.
Once the more advanced GlTextureProcessor interface exists,
it will be possible to change the output size of a GlTextureProcessor
between frames. To keep the re-configuration based on the frame sizes
minimal, things indepedent of the frame size, such as the GlProgram,
can be initialized in the constructor.

PiperOrigin-RevId: 451997584
2022-05-31 10:43:47 +00:00
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