75 lines
3.1 KiB
Mathematica
75 lines
3.1 KiB
Mathematica
|
/*
|
||
|
|
* Copyright [2019] [Doric.Pub]
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*/
|
||
|
|
//
|
||
|
|
// Created by jingpeng.wang on 2022/1/10.
|
||
|
|
//
|
||
|
|
|
||
|
|
#import <DoricCore/Doric.h>
|
||
|
|
#import "DoricImageDecoderPlugin.h"
|
||
|
|
#import "DoricExtensions.h"
|
||
|
|
|
||
|
|
@implementation DoricImageDecoderPlugin
|
||
|
|
- (void)getImageInfo:(NSDictionary *)resource withPromise:(DoricPromise *)promise {
|
||
|
|
DoricResource *doricResource = [self.doricContext.driver.registry.loaderManager load:resource withContext:self.doricContext];
|
||
|
|
if (doricResource != nil) {
|
||
|
|
DoricAsyncResult *asyncResult = [doricResource fetch];
|
||
|
|
[asyncResult setResultCallback:^(id _Nonnull result) {
|
||
|
|
UIImage *image = [UIImage imageWithData:result];
|
||
|
|
[promise resolve:@{
|
||
|
|
@"width": @(image.size.width),
|
||
|
|
@"height": @(image.size.height)
|
||
|
|
}];
|
||
|
|
}];
|
||
|
|
} else {
|
||
|
|
DoricLog(@"Cannot find loader for resource %s", resource.description);
|
||
|
|
[promise reject:@"Load error"];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)decodeToPixels:(NSDictionary *)resource withPromise:(DoricPromise *)promise {
|
||
|
|
DoricResource *doricResource = [self.doricContext.driver.registry.loaderManager load:resource withContext:self.doricContext];
|
||
|
|
if (doricResource != nil) {
|
||
|
|
DoricAsyncResult *asyncResult = [doricResource fetch];
|
||
|
|
[asyncResult setResultCallback:^(id _Nonnull result) {
|
||
|
|
UIImage *image = [UIImage imageWithData:result];
|
||
|
|
|
||
|
|
CGImageRef imageRef = image.CGImage;
|
||
|
|
NSUInteger iWidth = CGImageGetWidth(imageRef);
|
||
|
|
NSUInteger iHeight = CGImageGetHeight(imageRef);
|
||
|
|
NSUInteger iBytesPerPixel = 4;
|
||
|
|
NSUInteger iBytesPerRow = iBytesPerPixel * iWidth;
|
||
|
|
NSUInteger iBitsPerComponent = 8;
|
||
|
|
unsigned char *imageBytes = malloc(iWidth * iHeight * iBytesPerPixel);
|
||
|
|
|
||
|
|
CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB();
|
||
|
|
|
||
|
|
CGContextRef context = CGBitmapContextCreate(imageBytes, iWidth, iHeight, iBitsPerComponent, iBytesPerRow, colorspace, kCGImageAlphaPremultipliedLast);
|
||
|
|
CGRect rect = CGRectMake(0, 0, iWidth, iHeight);
|
||
|
|
CGContextDrawImage(context, rect, imageRef);
|
||
|
|
CGColorSpaceRelease(colorspace);
|
||
|
|
CGContextRelease(context);
|
||
|
|
|
||
|
|
NSData* data = [NSData dataWithBytes:(const void *)imageBytes length:sizeof(unsigned char) * iWidth * iHeight * iBytesPerPixel];
|
||
|
|
|
||
|
|
[promise resolve:data];
|
||
|
|
}];
|
||
|
|
} else {
|
||
|
|
DoricLog(@"Cannot find loader for resource %s", resource.description);
|
||
|
|
[promise reject:@"Load error"];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
@end
|