X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=resample_effect.h;fp=resample_effect.h;h=1aa459cbaaa3926c1aeabe2cd8f4647d77fd5f29;hp=b06b09b57ae9af67f18e938396adc8ab8ddbdd0d;hb=b1b5194238dd8b357148a3eee48d8d3a1ad04b35;hpb=546632016ca9a297ca14a0d3e6890d52bfae049c

diff --git a/resample_effect.h b/resample_effect.h
index b06b09b..1aa459c 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();