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#ifdef __ANDROID__ | |
#include "jni.h" | |
#include "android/log.h" | |
#define LOG_TAG "psx" | |
#define PRINTMSGS(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__) | |
#endif | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <math.h> | |
JNIEXPORT jfloat JNICALL | |
Java_com_mofirst_launcher_Launcher_getPercentage(JNIEnv *env, jclass obj, jintArray arr, jint w, jint h){ | |
jsize len = (*env)->GetArrayLength(env, arr); | |
int i = 0, colorPixel = 0, right_corner_pixel =0, left_corner_pixel = 0; | |
float percentage = 0.0f; | |
clock_t start, end; | |
int left = 100, right = 0, top = 100, bottom = 0; | |
start = clock(); | |
jint *body = (*env)->GetIntArrayElements(env, arr, 0); | |
for (i=0; i<len; i++) { | |
if((body[i] >> 24) != 0){ | |
colorPixel++; | |
if(top >= i/h) top = i/h; | |
if(bottom <= i/h) bottom = i/h; | |
if(left >= i%h) left=i%h; | |
if(right <= i%h) right=i%h; | |
} | |
} | |
int shape = 0; | |
int dy = abs(bottom-top); | |
int dx = abs(right-left); | |
//PRINTMSGS("%d,%d \n", dy,dx); | |
float ratio = (float)dy / dx; | |
float dxy = dy*dx; | |
if( ratio > 0.9f && ratio < 1.1f) shape = 100000; | |
percentage = (float)colorPixel/dxy; | |
(*env)->ReleaseIntArrayElements(env, arr, body, 0); | |
end = clock(); | |
int boxWeight = floor((dxy / (w * h))* 100) * 100; | |
//PRINTMSGS("boxWegight: %d, percentage: %f, shape:%d \n", boxWeight, percentage, shape); | |
return (float)percentage + shape + boxWeight; | |
} |
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