1 /*
2  * Copyright (C) 2022 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 #ifndef RAW_DECODER_H
16 #define RAW_DECODER_H
17 #include "plugin_class_base.h"
18 #include "abs_image_decoder.h"
19 namespace OHOS {
20 namespace ImagePlugin {
21 using namespace Media;
22 
23 class RawStream;
24 class RawDecoder : public AbsImageDecoder, public OHOS::MultimediaPlugin::PluginClassBase {
25 public:
26     RawDecoder();
27     ~RawDecoder() override;
28 
29 public:
30     void SetSource(InputDataStream &sourceStream) override;
31     void Reset() override;
32     bool HasProperty(std::string key) override;
33     uint32_t SetDecodeOptions(uint32_t index, const PixelDecodeOptions &opts, PlImageInfo &info) override;
34     uint32_t Decode(uint32_t index, DecodeContext &context) override;
35     uint32_t PromoteIncrementalDecode(uint32_t index, ProgDecodeContext &progContext) override;
36     uint32_t GetTopLevelImageNum(uint32_t &num) override;
37     uint32_t GetImageSize(uint32_t index, Size &size) override;
38 #ifdef IMAGE_COLORSPACE_FLAG
IsSupportICCProfile()39     bool IsSupportICCProfile() override
40     {
41         return false;
42     }
43 #endif
44 
45 private:
46     uint32_t DoDecodeHeader();
47     uint32_t DoDecodeHeaderByPiex();
48 
49     uint32_t DoSetDecodeOptions(uint32_t index, const PixelDecodeOptions &opts, PlImageInfo &info);
50     uint32_t DoGetImageSize(uint32_t index, Size &size);
51 
52     uint32_t DoDecode(uint32_t index, DecodeContext &context);
53 
54 private:
55     enum class RawDecodingState : int32_t {
56         UNDECIDED = 0,
57         SOURCE_INITED = 1,
58         BASE_INFO_PARSING = 2,
59         BASE_INFO_PARSED = 3,
60         IMAGE_DECODING = 4,
61         IMAGE_ERROR = 5,
62         IMAGE_PARTIAL = 6,
63         IMAGE_DECODED = 7
64     };
65 
66     InputDataStream *inputStream_ {nullptr};
67     RawDecodingState state_ {RawDecodingState::UNDECIDED};
68     PixelDecodeOptions opts_;
69     PlImageInfo info_;
70 
71     std::unique_ptr<RawStream> rawStream_;
72 
73     // PIEX used.
74     std::unique_ptr<InputDataStream> jpegStream_;
75     std::unique_ptr<AbsImageDecoder> jpegDecoder_;
76 };
77 } // namespace ImagePlugin
78 } // namespace OHOS
79 #endif // RAW_DECODER_H
80