X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=vignette_effect.h;h=4501ebea45978846a12d8b868b0f7a746c643b63;hp=1d75f7e63b11432677a6944e9d2bd2f89ccb296e;hb=f8e636666b3d36f97b125bc1a0f0f582c5026c7f;hpb=2b4a7d868112b4995bf6699f5b3aa68e9ec2b308

diff --git a/vignette_effect.h b/vignette_effect.h
index 1d75f7e..4501ebe 100644
--- a/vignette_effect.h
+++ b/vignette_effect.h
@@ -1,19 +1,29 @@
-#ifndef _VIGNETTE_EFFECT_H
-#define _VIGNETTE_EFFECT_H 1
+#ifndef _MOVIT_VIGNETTE_EFFECT_H
+#define _MOVIT_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; }
+
+	virtual void inform_input_size(unsigned input_num, unsigned width, unsigned height);
+	void set_gl_state(GLuint glsl_program_num, const std::string &prefix, unsigned *sampler_num);
 
 private:
-	Point2D center;
+	Point2D center, aspect_correction;
 	float radius, inner_radius;
 };
 
-#endif // !defined(_VIGNETTE_EFFECT_H)
+#endif // !defined(_MOVIT_VIGNETTE_EFFECT_H)