X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=resample_effect.h;h=669d15b94569626d5b1a2bfc058b98162dd6f6be;hb=b564238fa1293c01c77bcabe7b2de267f146ab24;hp=24e637260ea97489d54080bef521572bc68d8b05;hpb=7f1c8bb8b3ce08b94054f0a8990e5b8225d36036;p=movit

diff --git a/resample_effect.h b/resample_effect.h
index 24e6372..669d15b 100644
--- a/resample_effect.h
+++ b/resample_effect.h
@@ -53,9 +53,14 @@ public:
 	
 private:
 	void update_size();
+	void update_offset_and_zoom();
 	
 	SingleResamplePassEffect *hpass, *vpass;
 	int input_width, input_height, output_width, output_height;
+
+	float offset_x, offset_y;
+	float zoom_x, zoom_y;
+	float zoom_center_x, zoom_center_y;
 };
 
 class SingleResamplePassEffect : public Effect {
@@ -73,12 +78,14 @@ public:
 	virtual bool needs_srgb_primaries() const { return false; }
 	virtual AlphaHandling alpha_handling() const { return INPUT_PREMULTIPLIED_ALPHA_KEEP_BLANK; }
 
+	virtual void inform_added(EffectChain *chain) { this->chain = chain; }
 	virtual void inform_input_size(unsigned input_num, unsigned width, unsigned height) {
 		if (parent != NULL) {
 			parent->inform_input_size(input_num, width, height);
 		}
 	}
 	virtual bool changes_output_size() const { return true; }
+	virtual bool sets_virtual_output_size() const { return false; }
 
 	virtual void get_output_size(unsigned *width, unsigned *height, unsigned *virtual_width, unsigned *virtual_height) const {
 		*virtual_width = *width = this->output_width;
@@ -93,10 +100,13 @@ private:
 	void update_texture(GLuint glsl_program_num, const std::string &prefix, unsigned *sampler_num);
 
 	ResampleEffect *parent;
+	EffectChain *chain;
 	Direction direction;
 	GLuint texnum;
 	int input_width, input_height, output_width, output_height;
+	float offset, zoom;
 	int last_input_width, last_input_height, last_output_width, last_output_height;
+	float last_offset, last_zoom;
 	int src_bilinear_samples, num_loops;
 	float slice_height;
 };