EffectChainTester tester(data, 2, 3, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR);
tester.run(out_data, GL_RED, COLORSPACE_sRGB, GAMMA_sRGB);
EffectChainTester tester(data, 2, 3, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR);
tester.run(out_data, GL_RED, COLORSPACE_sRGB, GAMMA_sRGB);