X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=resample_effect.h;h=af6a79f0227ced59522e57ced1a865d7b11a9df0;hp=73dfc210e9732388e193ed2dcd0eb6cdb31d50a8;hb=3559b216df102fb518876e1d567e2a3558283d31;hpb=c2ca57b71bf77244acc85aaccb2d6c360517c5a3

diff --git a/resample_effect.h b/resample_effect.h
index 73dfc21..af6a79f 100644
--- a/resample_effect.h
+++ b/resample_effect.h
@@ -18,9 +18,11 @@
 #include <epoxy/gl.h>
 #include <assert.h>
 #include <stddef.h>
+#include <memory>
 #include <string>
 
 #include "effect.h"
+#include "fp16.h"
 
 namespace movit {
 
@@ -28,9 +30,26 @@ class EffectChain;
 class Node;
 class SingleResamplePassEffect;
 
+// Public so that it can be benchmarked externally.
+template<class T>
+struct Tap {
+	T weight;
+	T pos;
+};
+struct ScalingWeights {
+	unsigned src_bilinear_samples;
+	unsigned dst_samples, num_loops;
+
+	// Exactly one of these is set.
+	std::unique_ptr<Tap<fp16_int_t>[]> bilinear_weights_fp16;
+	std::unique_ptr<Tap<float>[]> bilinear_weights_fp32;
+};
+ScalingWeights calculate_scaling_weights(unsigned src_size, unsigned dst_size, float zoom, float offset);
+
 class ResampleEffect : public Effect {
 public:
 	ResampleEffect();
+	~ResampleEffect();
 
 	virtual std::string effect_type_id() const { return "ResampleEffect"; }
 
@@ -55,17 +74,21 @@ private:
 	void update_size();
 	void update_offset_and_zoom();
 	
+	// Both of these are owned by us if owns_effects is true (before finalize()),
+	// and otherwise owned by the EffectChain.
+	bool owns_effects;
 	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;
+	float unused;
 };
 
 class SingleResamplePassEffect : public Effect {
 public:
-	// If parent is non-NULL, calls to inform_input_size will be forwarded,
+	// If parent is non-nullptr, calls to inform_input_size will be forwarded,
 	// so that it can inform both passes about the right input and output
 	// resolutions.
 	SingleResamplePassEffect(ResampleEffect *parent);
@@ -80,7 +103,7 @@ public:
 
 	virtual void inform_added(EffectChain *chain) { this->chain = chain; }
 	virtual void inform_input_size(unsigned input_num, unsigned width, unsigned height) {
-		if (parent != NULL) {
+		if (parent != nullptr) {
 			parent->inform_input_size(input_num, width, height);
 		}
 	}
@@ -103,8 +126,14 @@ private:
 	EffectChain *chain;
 	Direction direction;
 	GLuint texnum;
+	GLint uniform_sample_tex;
+	float uniform_num_loops, uniform_slice_height, uniform_sample_x_scale, uniform_sample_x_offset;
+	float uniform_whole_pixel_offset;
+	int uniform_num_samples;
+
 	int input_width, input_height, output_width, output_height;
 	float offset, zoom;
+	float unused;
 	int last_input_width, last_input_height, last_output_width, last_output_height;
 	float last_offset, last_zoom;
 	int src_bilinear_samples, num_loops;