Hubert Maier 98551e0ce3 SDL/OGL: Add backwards compatibility for AmigaOS4 ...

Since the internal switch to OpenGL 2.0, residualvm stopped working entirely on the AmigaOS4 platform.
Due to the fact that AmigaOS4 only supports OpenGL close to version 1.3, the program quits right after starting with an error message of not being able to create a proper screen.

This PR is to make residualvm work again on the AmigaOS4 platform (Grim Fandango is working great, EMI with a few glitches, TLJ not at all due to missing shaders).

Please revise and tell me what has to be changed to get accepted.

2018-06-24 15:49:24 +02:00

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audiocd

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cloud

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events

SDL: Improve joystick usage

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fs

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graphics

SDL/OGL: Add backwards compatibility for AmigaOS4

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keymapper

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log

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midi

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mixer/sdl

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mutex

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networking

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platform

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plugins

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saves

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taskbar

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timer

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updates

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vkeybd

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base-backend.cpp

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base-backend.h

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modular-backend.cpp

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modular-backend.h

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module.mk

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