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//
// FloatVector.m
//
// Created by Giles Payne on 2020/01/04.
//
#import "FloatVector.h"
#import <vector>
@implementation FloatVector {
std::vector<float> v;
}
-(instancetype)initWithData:(NSData*)data {
self = [super init];
if (self) {
if (data.length % sizeof(float) != 0) {
@throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"Invalid data length" userInfo:nil];
}
v.insert(v.begin(), (float*)data.bytes, (float*)data.bytes + data.length/sizeof(float));
}
return self;
}
-(instancetype)initWithVector:(FloatVector *)src {
self = [super init];
if (self) {
v.insert(v.begin(), src.nativeRef.begin(), src.nativeRef.end());
}
return self;
}
-(NSInteger)length {
return v.size();
}
-(float*)nativeArray {
return (float*)v.data();
}
-(instancetype)initWithNativeArray:(float*)array elements:(NSInteger)elements {
self = [super init];
if (self) {
v.insert(v.begin(), array, array + elements);
}
return self;
}
- (std::vector<float>&)nativeRef {
return v;
}
-(instancetype)initWithStdVector:(std::vector<float>&)src {
self = [super init];
if (self) {
v.insert(v.begin(), src.begin(), src.end());
}
return self;
}
+(instancetype)fromNative:(std::vector<float>&)src {
return [[FloatVector alloc] initWithStdVector:src];
}
-(float)get:(NSInteger)index {
if (index < 0 || index >= (long)v.size()) {
@throw [NSException exceptionWithName:NSRangeException reason:@"Invalid data length" userInfo:nil];
}
return v[index];
}
-(NSData*)data {
return [NSData dataWithBytesNoCopy:v.data() length:(v.size() * sizeof(float)) freeWhenDone:NO];
}
@end
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