updated resizer

lib/danbooru_image_resizer/Histogram.h

@@ -0,0 +1,29 @@
+#ifndef HISTOGRAM_H
+#define HISTOGRAM_H
+
+#include "Filter.h"
+#include <memory>
+using namespace std;
+#include <stdint.h>
+
+class Histogram: public Filter
+{
+public:
+	Histogram();
+
+	bool Init(int iSourceWidth, int iSourceHeight, int BPP);
+	bool WriteRow(uint8_t *pNewRow);
+	bool Finish() { return true; }
+
+	const char *GetError() const { return NULL; }
+	int GetChannels() const;
+	const unsigned *GetHistogram(int iChannel) const { return m_Histogram[iChannel]; }
+
+private:
+	unsigned m_Histogram[3][256];
+
+	int m_SourceWidth;
+	int m_SourceBPP;
+};
+
+#endif