Bug Summary

File:Volumes/Data/worker/macOS-Safer-CPP-Checks-EWS/build/Source/WebCore/platform/graphics/coreimage/FEGaussianBlurCoreImageApplier.mm
Warning:line 60, column 11
Local variable 'input' is uncounted and unsafe

Annotated Source Code

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1/*
2 * Copyright (C) 2026 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#import "config.h"
27#import "FEGaussianBlurCoreImageApplier.h"
28
29#if USE(CORE_IMAGE)(defined 1 && 1)
30
31#import "ColorSpaceCG.h"
32#import "FEGaussianBlur.h"
33#import "Filter.h"
34#import "Logging.h"
35#import <CoreImage/CIFilterBuiltins.h>
36#import <CoreImage/CoreImage.h>
37#import <wtf/BlockObjCExceptions.h>
38#import <wtf/NeverDestroyed.h>
39#import <wtf/TZoneMallocInlines.h>
40
41namespace WebCore {
42
43WTF_MAKE_TZONE_ALLOCATED_IMPL(FEGaussianBlurCoreImageApplier)::bmalloc::api::HeapRef FEGaussianBlurCoreImageApplier::s_heapRef
; const TZoneSpecification FEGaussianBlurCoreImageApplier::s_heapSpec
= { &FEGaussianBlurCoreImageApplier::s_heapRef, sizeof(FEGaussianBlurCoreImageApplier
), ::bmalloc::api::compactAllocationMode<FEGaussianBlurCoreImageApplier
>(), SizeAndAlignment::encode<FEGaussianBlurCoreImageApplier
>() }; void* FEGaussianBlurCoreImageApplier::operatorNewSlow
(size_t size) { if constexpr (::bmalloc::api::compactAllocationMode
<FEGaussianBlurCoreImageApplier>() == CompactAllocationMode
::Compact) return ::bmalloc::api::tzoneAllocateCompactSlow(size
, s_heapSpec); return ::bmalloc::api::tzoneAllocateNonCompactSlow
(size, s_heapSpec); } using __makeBtzoneMallocedInlineMacroSemicolonifier
__attribute__((unused)) = int
;
44
45FEGaussianBlurCoreImageApplier::FEGaussianBlurCoreImageApplier(const FEGaussianBlur& effect)
46 : Base(effect)
47{
48}
49
50bool FEGaussianBlurCoreImageApplier::supportsCoreImageRendering(const FEGaussianBlur&)
51{
52 return true;
53}
54
55bool FEGaussianBlurCoreImageApplier::apply(const Filter& filter, std::span<const Ref<FilterImage>> inputs, FilterImage& result) const
56{
57 BEGIN_BLOCK_OBJC_EXCEPTIONS@try {
58
59 ASSERT(inputs.size() == 1)((void)0);
60 auto& input = inputs[0].get();
Local variable 'input' is uncounted and unsafe
61
62 RetainPtr inputImage = input.ciImage();
63 if (!inputImage)
64 return false;
65
66 // FIXME: Support edge modes.
67 auto absoluteStdDeviation = filter.scaledByFilterScale(FloatSize(m_effect->stdDeviationX(), m_effect->stdDeviationY()));
68
69 auto ciFilter = [CIFilter filterWithName:@"CIGaussianBlurXY"];
70 [ciFilter setValue:inputImage.get() forKey:kCIInputImageKey];
71 [ciFilter setValue:@(absoluteStdDeviation.width()) forKey:@"inputSigmaX"];
72 [ciFilter setValue:@(absoluteStdDeviation.height()) forKey:@"inputSigmaY"];
73
74 auto cropRect = filter.flippedRectRelativeToAbsoluteEnclosingFilterRegion(result.absoluteImageRect());
75 RetainPtr image = [[ciFilter outputImage] imageByCroppingToRect:cropRect];
76
77 result.setCIImage(WTF::move(image));
78 return true;
79
80 END_BLOCK_OBJC_EXCEPTIONS} @catch(NSException *localException) { ReportBlockedObjCException
(localException); }
81 return false;
82}
83
84} // namespace WebCore
85
86#endif // USE(CORE_IMAGE)