chore: import upstream snapshot with attribution

2026-07-13 12:06:04 +08:00
commit 86c9b1c39f
7743 changed files with 3316339 additions and 0 deletions
@@ -0,0 +1,83 @@
+//
+//  MatOfDMatch.m
+//
+//  Created by Giles Payne on 2019/12/27.
+//
+
+#import "MatOfDMatch.h"
+#import "Range.h"
+#import "DMatch.h"
+#import "CvType.h"
+#import "ArrayUtil.h"
+
+@implementation MatOfDMatch
+
+static const int _depth = CV_32F;
+static const int _channels = 4;
+
+#ifdef __cplusplus
+- (instancetype)initWithNativeMat:(cv::Mat*)nativeMat {
+    self = [super initWithNativeMat:nativeMat];
+    if (self && ![self empty] && [self checkVector:_channels depth:_depth] < 0) {
+        @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"Incompatible Mat" userInfo:nil];
+    }
+    return self;
+}
+#endif
+
+- (instancetype)initWithMat:(Mat*)mat {
+    self = [super initWithMat:mat rowRange:[Range all]];
+    if (self && ![self empty] && [self checkVector:_channels depth:_depth] < 0) {
+        @throw [NSException exceptionWithName:NSInvalidArgumentException reason:@"Incompatible Mat" userInfo:nil];
+    }
+    return self;
+}
+
+- (instancetype)initWithArray:(NSArray<DMatch*>*)array {
+    self = [super init];
+    if (self) {
+        [self fromArray:array];
+    }
+    return self;
+}
+
+- (void)alloc:(int)elemNumber {
+    if (elemNumber>0) {
+        [super create:elemNumber cols:1 type:[CvType makeType:_depth channels:_channels]];
+    }
+}
+
+- (void)fromArray:(NSArray<DMatch*>*)array {
+    NSMutableArray<NSNumber*>* data = [[NSMutableArray alloc] initWithCapacity:array.count * _channels];
+    for (int index = 0; index < (int)array.count; index++) {
+        data[_channels * index] = [NSNumber numberWithFloat:array[index].queryIdx];
+        data[_channels * index + 1] = [NSNumber numberWithFloat:array[index].trainIdx];
+        data[_channels * index + 2] = [NSNumber numberWithFloat:array[index].imgIdx];
+        data[_channels * index + 3] = [NSNumber numberWithFloat:array[index].distance];
+    }
+    [self alloc:(int)array.count];
+    [self put:0 col:0 data:data];
+}
+
+- (NSArray<DMatch*>*)toArray {
+    int length = [self length] / _channels;
+    NSMutableArray<DMatch*>* ret = createArrayWithSize(length, [DMatch new]);
+    if (length > 0) {
+        NSMutableArray<NSNumber*>* data = createArrayWithSize([self length], @0.0);
+        [self get:0 col:0 data:data];
+        for (int index = 0; index < length; index++) {
+            ret[index] = [[DMatch alloc] initWithQueryIdx:data[index * _channels].intValue trainIdx:data[index * _channels + 1].intValue imgIdx:data[index * _channels + 2].intValue distance:data[index * _channels + 3].floatValue];
+        }
+    }
+    return ret;
+}
+
+- (int)length {
+    int num = [self checkVector:_channels depth:_depth];
+    if (num < 0) {
+        @throw  [NSException exceptionWithName:NSInternalInconsistencyException reason:@"Incompatible Mat" userInfo:nil];
+    }
+    return num * _channels;
+}
+
+@end