jni/filters/filters.h

/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef FILTERS_H
#define FILTERS_H

#include <jni.h>
#include <string.h>
#include <android/log.h>
#include <android/bitmap.h>

typedef unsigned int Color;

#define SetColor(a, r, g, b) (((a) << 24) | ((b) << 16) | ((g) << 8) | ((r) << 0));
#define GetA(color) (((color) >> 24) & 0xFF)
#define GetB(color) (((color) >> 16) & 0xFF)
#define GetG(color) (((color) >> 8) & 0xFF)
#define GetR(color) (((color) >> 0) & 0xFF)

#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define MAX(a, b) ((a) > (b) ? (a) : (b))

#define LOG(msg...) __android_log_print(ANDROID_LOG_VERBOSE, "NativeFilters", msg)

#define JNIFUNCF(cls, name, vars...) Java_com_android_gallery3d_filtershow_filters_ ## cls ## _ ## name(JNIEnv* env, jobject obj, vars)

#define RED i
#define GREEN (i+1)
#define BLUE (i+2)
#define ALPHA (i+3)
#define CLAMP(c) (MAX(0, MIN(255, c)))

extern unsigned char  clamp(int c);
extern int clampMax(int c,int max);

extern void rgb2hsv( unsigned char *rgb,int rgbOff,unsigned short *hsv,int hsvOff);
extern void hsv2rgb(unsigned short *hsv,int hsvOff,unsigned char  *rgb,int rgbOff);
extern void filterRedEye(unsigned char *src, unsigned char *dest, int iw, int ih, short *rect);
extern double fastevalPoly(double *poly,int n, double x);
#endif // FILTERS_H