xref: /core/vcl/quartz/cgutils.mm (revision fe3fa169) 
1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
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8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 *   Licensed to the Apache Software Foundation (ASF) under one or more
12 *   contributor license agreements. See the NOTICE file distributed
13 *   with this work for additional information regarding copyright
14 *   ownership. The ASF licenses this file to you under the Apache
15 *   License, Version 2.0 (the "License"); you may not use this file
16 *   except in compliance with the License. You may obtain a copy of
17 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20#include <quartz/cgutils.h>
21
22#include <salbmp.hxx>
23#ifdef MACOSX
24#include <osx/saldata.hxx>
25#else
26#include <ios/iosinst.hxx>
27#endif
28
29#ifdef MACOSX
30#include <premac.h>
31#include <Metal/Metal.h>
32#include <postmac.h>
33#endif
34
35static void CFRTLFree(void* /*info*/, const void* data, size_t /*size*/)
36{
37    std::free( const_cast<void*>(data) );
38}
39
40CGImageRef CreateWithSalBitmapAndMask( const SalBitmap& rBitmap, const SalBitmap& rMask, int nX, int nY, int nWidth, int nHeight )
41{
42    CGImageRef xImage( rBitmap.CreateCroppedImage( nX, nY, nWidth, nHeight ) );
43    if( !xImage )
44        return nullptr;
45
46    CGImageRef xMask = rMask.CreateCroppedImage( nX, nY, nWidth, nHeight );
47    if( !xMask )
48        return xImage;
49
50    // If xMask is an image (i.e. not a mask), it must be greyscale - a requirement of the
51    // CGImageCreateWithMask() function.
52    if( !CGImageIsMask(xMask) && CGImageGetColorSpace(xMask) != GetSalData()->mxGraySpace )
53    {
54        CGImageRef xGrayMask = CGImageCreateCopyWithColorSpace(xMask, GetSalData()->mxGraySpace);
55        if (xGrayMask)
56        {
57            CFRelease(xMask);
58            xMask = xGrayMask;
59        }
60        else
61        {
62            // Many gallery images will fail to be converted to a grayscale
63            // colorspace so fall back to old mask creation code
64            const CGRect xImageRect=CGRectMake( 0, 0, nWidth, nHeight );//the rect has no offset
65
66            // create the alpha mask image fitting our image
67            // TODO: is caching the full mask or the subimage mask worth it?
68            int nMaskBytesPerRow = ((nWidth + 3) & ~3);
69            void* pMaskMem = std::malloc( nMaskBytesPerRow * nHeight );
70            CGContextRef xMaskContext = CGBitmapContextCreate( pMaskMem,
71                nWidth, nHeight, 8, nMaskBytesPerRow, GetSalData()->mxGraySpace, kCGImageAlphaNone );
72            CGContextDrawImage( xMaskContext, xImageRect, xMask );
73            CFRelease( xMask );
74            CGDataProviderRef xDataProvider( CGDataProviderCreateWithData( nullptr,
75            pMaskMem, nHeight * nMaskBytesPerRow, &CFRTLFree ) );
76
77            static const CGFloat* pDecode = nullptr;
78            xMask = CGImageMaskCreate( nWidth, nHeight, 8, 8, nMaskBytesPerRow, xDataProvider, pDecode, false );
79            CFRelease( xDataProvider );
80            CFRelease( xMaskContext );
81        }
82    }
83
84    if( !xMask )
85        return xImage;
86
87    // combine image and alpha mask
88    CGImageRef xMaskedImage = CGImageCreateWithMask( xImage, xMask );
89    CFRelease( xMask );
90    CFRelease( xImage );
91    return xMaskedImage;
92}
93
94#ifdef MACOSX
95
96bool DefaultMTLDeviceIsSupported()
97{
98    id<MTLDevice> pMetalDevice = MTLCreateSystemDefaultDevice();
99    if (!pMetalDevice || !pMetalDevice.name)
100    {
101        SAL_WARN("vcl.skia", "MTLCreateSystemDefaultDevice() returned nil");
102        return false;
103    }
104
105    SAL_WARN("vcl.skia", "Default MTLDevice is \"" << [pMetalDevice.name UTF8String] << "\"");
106
107    bool bRet = true;
108
109    // tdf#156881 Disable Metal with AMD Radeon Pro 5XXX GPUs on macOS Catalina
110    // When running macOS Catalina on a 2019 MacBook Pro, unexpected drawing
111    // artifacts are drawn so disable Metal for the AMD Radeon Pro GPUs listed
112    // for that model in https://support.apple.com/kb/SP809.
113    if (@available(macOS 11, *))
114    {
115        // No known problems with macOS Big Sur or later
116    }
117    else
118    {
119       static NSString* pAMDRadeonPro5300Prefix = @"AMD Radeon Pro 5300M";
120       static NSString* pAMDRadeonPro5500Prefix = @"AMD Radeon Pro 5500M";
121       if ([pMetalDevice.name hasPrefix:pAMDRadeonPro5300Prefix] || [pMetalDevice.name hasPrefix:pAMDRadeonPro5500Prefix])
122           bRet = false;
123    }
124
125    [pMetalDevice release];
126    return bRet;
127}
128
129#endif
130
131/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
132