49 lines
1.9 KiB
Plaintext
49 lines
1.9 KiB
Plaintext
#import "NSImage+MGLAdditions.h"
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#include <mbgl/util/image+MGLAdditions.hpp>
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@implementation NSImage (MGLAdditions)
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- (nullable instancetype)initWithMGLPremultipliedImage:(mbgl::PremultipliedImage&&)src {
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CGImageRef image = CGImageFromMGLPremultipliedImage(std::move(src));
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if (!image) {
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return nil;
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}
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self = [self initWithCGImage:image size:NSZeroSize];
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CGImageRelease(image);
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return self;
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}
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- (nullable instancetype)initWithMGLSpriteImage:(const mbgl::SpriteImage *)spriteImage {
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CGImageRef image = CGImageFromMGLPremultipliedImage(spriteImage->image.clone());
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if (!image) {
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return nil;
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}
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NSBitmapImageRep *rep = [[NSBitmapImageRep alloc] initWithCGImage:image];
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CGImageRelease(image);
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if (self = [self initWithSize:NSMakeSize(spriteImage->getWidth(), spriteImage->getHeight())]) {
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[self addRepresentation:rep];
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[self setTemplate:spriteImage->sdf];
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}
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return self;
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}
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- (std::unique_ptr<mbgl::SpriteImage>)mgl_spriteImage {
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// Create a bitmap image representation from the image, respecting backing
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// scale factor and any resizing done on the image at runtime.
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// http://www.cocoabuilder.com/archive/cocoa/82430-nsimage-getting-raw-bitmap-data.html#82431
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[self lockFocus];
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NSBitmapImageRep *rep = [[NSBitmapImageRep alloc] initWithFocusedViewRect:{ NSZeroPoint, self.size }];
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[self unlockFocus];
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mbgl::PremultipliedImage cPremultipliedImage({ static_cast<uint32_t>(rep.pixelsWide), static_cast<uint32_t>(rep.pixelsHigh) });
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std::copy(rep.bitmapData, rep.bitmapData + cPremultipliedImage.bytes(), cPremultipliedImage.data.get());
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return std::make_unique<mbgl::SpriteImage>(std::move(cPremultipliedImage),
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(float)(rep.pixelsWide / self.size.width),
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[self isTemplate]);
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}
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@end
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