+ bool needs_srgb_primaries() const override { return false; }
+ AlphaHandling alpha_handling() const override { return DONT_CARE_ALPHA_TYPE; }
+ bool strong_one_to_one_sampling() const override { return true; }
+
+ void inform_input_size(unsigned input_num, unsigned width, unsigned height) override;
+ void set_gl_state(GLuint glsl_program_num, const std::string &prefix, unsigned *sampler_num) override;