X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=blur_effect.h;h=9bacd535efb69ffdbf39192f8b678c00fec472c8;hp=a440949f00901beb8b7eb206b1b45be23678ac0f;hb=3d1f6c11c53cd9d3d5c1fb60f4accf050b7f135e;hpb=a93b0c94f68bf897adfdca95b292494497fa4f7f

diff --git a/blur_effect.h b/blur_effect.h
index a440949..9bacd53 100644
--- a/blur_effect.h
+++ b/blur_effect.h
@@ -17,6 +17,10 @@ class BlurEffect : public Effect {
 public:
 	BlurEffect();
 
+	// We want this for the same reason as ResizeEffect; we could end up scaling
+	// down quite a lot.
+	virtual bool needs_texture_bounce() const { return true; }
+	virtual bool needs_mipmaps() const { return true; }
 	virtual bool needs_srgb_primaries() const { return false; }
 
 	virtual std::string output_fragment_shader() {
@@ -26,12 +30,13 @@ public:
 		assert(false);
 	}
 
-	virtual bool needs_texture_bounce() const { return true; }
-	virtual bool needs_mipmaps() const { return true; }
 	virtual void add_self_to_effect_chain(EffectChain *chain, const std::vector<Effect *> &input);
 	virtual bool set_float(const std::string &key, float value);
 	
 private:
+	void update_radius();
+	
+	float radius;
 	SingleBlurPassEffect *hpass, *vpass;
 };
 
@@ -40,9 +45,16 @@ public:
 	SingleBlurPassEffect();
 	std::string output_fragment_shader();
 
-	virtual bool needs_srgb_primaries() const { return false; }
 	virtual bool needs_texture_bounce() const { return true; }
 	virtual bool needs_mipmaps() const { return true; }
+	virtual bool needs_srgb_primaries() const { return false; }
+
+	virtual bool changes_output_size() const { return true; }
+
+	virtual void get_output_size(unsigned *width, unsigned *height) const {
+		*width = this->width;
+		*height = this->height;
+	}
 
 	void set_gl_state(GLuint glsl_program_num, const std::string &prefix, unsigned *sampler_num);
 	void clear_gl_state();
@@ -52,6 +64,7 @@ public:
 private:
 	float radius;
 	Direction direction;
+	int width, height;
 };
 
 #endif // !defined(_BLUR_EFFECT_H)