EffectChainTester tester(data, size, 1, FORMAT_RGBA_POSTMULTIPLIED_ALPHA, COLORSPACE_sRGB, GAMMA_LINEAR);
tester.get_chain()->add_effect(new IdentityEffect());
tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_LINEAR);
EffectChainTester tester(data, size, 1, FORMAT_RGBA_POSTMULTIPLIED_ALPHA, COLORSPACE_sRGB, GAMMA_LINEAR);
tester.get_chain()->add_effect(new IdentityEffect());
tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_LINEAR);