X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=vignette_effect.h;h=d13bf85d01c36b47a47cdd53641efd8f6f5fe6ad;hp=1d75f7e63b11432677a6944e9d2bd2f89ccb296e;hb=c208d2719d48f7676d73b6f406f2417ec147acae;hpb=2b4a7d868112b4995bf6699f5b3aa68e9ec2b308

diff --git a/vignette_effect.h b/vignette_effect.h
index 1d75f7e..d13bf85 100644
--- a/vignette_effect.h
+++ b/vignette_effect.h
@@ -1,15 +1,24 @@
 #ifndef _VIGNETTE_EFFECT_H
 #define _VIGNETTE_EFFECT_H 1
 
+// A circular vignette, falling off as cos² of the distance from the center
+// (the classic formula for approximating a real lens).
+
+#include <GL/glew.h>
+#include <string>
+
 #include "effect.h"
 
 class VignetteEffect : public Effect {
 public:
 	VignetteEffect();
-	std::string output_vertex_shader();
+	virtual std::string effect_type_id() const { return "VignetteEffect"; }
 	std::string output_fragment_shader();
 
-	void set_uniforms(GLuint glsl_program_num, const std::string &prefix);
+	virtual bool needs_srgb_primaries() const { return false; }
+	virtual AlphaHandling alpha_handling() const { return DONT_CARE_ALPHA_TYPE; }
+
+	void set_gl_state(GLuint glsl_program_num, const std::string &prefix, unsigned *sampler_num);
 
 private:
 	Point2D center;