X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=vignette_effect.h;h=d13bf85d01c36b47a47cdd53641efd8f6f5fe6ad;hp=b8e0f68c7f1c5cfe16bc82fef2d9c5abcb9fd83f;hb=6278a96c8e0ea5df9d831ecd5b893f831ddc8297;hpb=17c083aad45a10df14c38cfe879a87220dfd4fb9

diff --git a/vignette_effect.h b/vignette_effect.h
index b8e0f68..d13bf85 100644
--- a/vignette_effect.h
+++ b/vignette_effect.h
@@ -1,14 +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();
+	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;