X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=resample_effect.h;h=7538a68c143e8bd29cdac1078b94bd456bf2c9f6;hp=b06b09b57ae9af67f18e938396adc8ab8ddbdd0d;hb=1fb55b14a6c694e082f0261e86f26d4f82948821;hpb=9c12e38b7cd88a77ef297d080b7c41e6bd6326fb

diff --git a/resample_effect.h b/resample_effect.h
index b06b09b..7538a68 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 {
 
@@ -28,6 +30,22 @@ 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();
@@ -61,6 +79,7 @@ private:
 	float offset_x, offset_y;
 	float zoom_x, zoom_y;
 	float zoom_center_x, zoom_center_y;
+	float unused;
 };
 
 class SingleResamplePassEffect : public Effect {
@@ -110,6 +129,7 @@ private:
 
 	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;