1/*
2 * Copyright (C) 2012 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. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "ColorSpaceData.h"
28
29#include "ArgumentCodersCF.h"
30#include "ArgumentDecoder.h"
31#include "ArgumentEncoder.h"
32
33namespace WebKit {
34
35enum EncodedDataType {
36    Null,
37    Name,
38    Data,
39};
40
41void ColorSpaceData::encode(IPC::ArgumentEncoder& encoder) const
42{
43#if !PLATFORM(IOS)
44    if (cgColorSpace) {
45        // Try to encode the name.
46        if (RetainPtr<CFStringRef> name = adoptCF(CGColorSpaceCopyName(cgColorSpace.get()))) {
47            encoder.encodeEnum(Name);
48            IPC::encode(encoder, name.get());
49            return;
50        }
51
52        // Failing that, just encode the ICC data.
53        if (RetainPtr<CFDataRef> profileData = adoptCF(CGColorSpaceCopyICCProfile(cgColorSpace.get()))) {
54            encoder.encodeEnum(Data);
55            IPC::encode(encoder, profileData.get());
56            return;
57        }
58    }
59#endif // !PLATFORM(IOS)
60
61    // The color space was null or failed to be encoded.
62    encoder.encodeEnum(Null);
63}
64
65bool ColorSpaceData::decode(IPC::ArgumentDecoder& decoder, ColorSpaceData& colorSpaceData)
66{
67    EncodedDataType dataType;
68    if (!decoder.decodeEnum(dataType))
69        return false;
70
71    switch (dataType) {
72    case Null:
73        colorSpaceData.cgColorSpace = nullptr;
74        return true;
75    case Name: {
76        RetainPtr<CFStringRef> name;
77        if (!IPC::decode(decoder, name))
78            return false;
79
80        colorSpaceData.cgColorSpace = adoptCF(CGColorSpaceCreateWithName(name.get()));
81        return true;
82    }
83    case Data: {
84        RetainPtr<CFDataRef> data;
85        if (!IPC::decode(decoder, data))
86            return false;
87
88        colorSpaceData.cgColorSpace = adoptCF(CGColorSpaceCreateWithICCProfile(data.get()));
89        return true;
90    }
91
92    default:
93        return false;
94    }
95}
96
97} // namespace WebKit
98