+
+ chain.render_to_fbo(fbo, width, height);
+
+ glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+ glReadPixels(0, 0, width, height, format, GL_UNSIGNED_BYTE, out_data);
+
+ if (format == GL_RGBA) {
+ width *= 4;
+ }
+
+ vertical_flip(out_data, width, height);
+}
+
+void EffectChainTester::finalize_chain(Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format)
+{
+ assert(!finalized);
+ ImageFormat image_format;
+ image_format.color_space = color_space;
+ image_format.gamma_curve = gamma_curve;
+ chain.add_output(image_format, alpha_format);
+ chain.finalize();
+ finalized = true;