X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=vignette_effect.h;h=926a5be0e0e5dd794c72b2ee0c7c507bedbee919;hp=cadb58c456f342f1ba472e4fb4b19cb66efe8837;hb=90ac46cdc5845432df13385f946c63b5496c685e;hpb=96a1cff51a8b7dc45ebe725e0d0685eecce31331

diff --git a/vignette_effect.h b/vignette_effect.h
index cadb58c..926a5be 100644
--- a/vignette_effect.h
+++ b/vignette_effect.h
@@ -1,18 +1,36 @@
-#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 <epoxy/gl.h>
+#include <string>
 
 #include "effect.h"
 
+namespace movit {
+
 class VignetteEffect : public Effect {
 public:
 	VignetteEffect();
-	std::string output_glsl();
+	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 bool one_to_one_sampling() const { return true; }
+
+	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 uniform_aspect_correction, uniform_flipped_center;
 	float radius, inner_radius;
+	float uniform_pihalf_div_radius;
 };
 
-#endif // !defined(_VIGNETTE_EFFECT_H)
+}  // namespace movit
+
+#endif // !defined(_MOVIT_VIGNETTE_EFFECT_H)