1
2 /*
3 * Copyright 2006 The Android Open Source Project
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8
9
10 #include "SkImageDecoder.h"
11 #include "SkMovie.h"
12 #include "SkStream.h"
13
14 extern SkImageDecoder* SkImageDecoder_GIF_Factory(SkStream*);
15 extern SkImageDecoder* SkImageDecoder_BMP_Factory(SkStream*);
16 extern SkImageDecoder* SkImageDecoder_ICO_Factory(SkStream*);
17 extern SkImageDecoder* SkImageDecoder_PNG_Factory(SkStream*);
18 extern SkImageDecoder* SkImageDecoder_WBMP_Factory(SkStream*);
19 extern SkImageDecoder* SkImageDecoder_JPEG_Factory(SkStream*);
20
21 typedef SkImageDecoder* (*SkImageDecoderFactoryProc)(SkStream*);
22
23 struct CodecFormat {
24 SkImageDecoderFactoryProc fProc;
25 SkImageDecoder::Format fFormat;
26 };
27
28 static const CodecFormat gPairs[] = {
29 #if 0
30 { SkImageDecoder_GIF_Factory, SkImageDecoder::kGIF_Format },
31 { SkImageDecoder_PNG_Factory, SkImageDecoder::kPNG_Format },
32 { SkImageDecoder_ICO_Factory, SkImageDecoder::kICO_Format },
33 { SkImageDecoder_WBMP_Factory, SkImageDecoder::kWBMP_Format },
34 { SkImageDecoder_BMP_Factory, SkImageDecoder::kBMP_Format },
35 { SkImageDecoder_JPEG_Factory, SkImageDecoder::kJPEG_Format }
36 #endif
37 };
38
Factory(SkStream * stream)39 SkImageDecoder* SkImageDecoder::Factory(SkStream* stream) {
40 for (size_t i = 0; i < SK_ARRAY_COUNT(gPairs); i++) {
41 SkImageDecoder* codec = gPairs[i].fProc(stream);
42 stream->rewind();
43 if (NULL != codec) {
44 return codec;
45 }
46 }
47 return NULL;
48 }
49
SupportsFormat(Format format)50 bool SkImageDecoder::SupportsFormat(Format format) {
51 for (size_t i = 0; i < SK_ARRAY_COUNT(gPairs); i++) {
52 if (gPairs[i].fFormat == format) {
53 return true;
54 }
55 }
56 return false;
57 }
58
59 /////////////////////////////////////////////////////////////////////////
60
61 typedef SkMovie* (*SkMovieFactoryProc)(SkStream*);
62
63 extern SkMovie* SkMovie_GIF_Factory(SkStream*);
64
65 static const SkMovieFactoryProc gMovieProcs[] = {
66 #if 0
67 SkMovie_GIF_Factory
68 #endif
69 };
70
DecodeStream(SkStream * stream)71 SkMovie* SkMovie::DecodeStream(SkStream* stream) {
72 for (unsigned i = 0; i < SK_ARRAY_COUNT(gMovieProcs); i++) {
73 SkMovie* movie = gMovieProcs[i](stream);
74 if (NULL != movie) {
75 return movie;
76 }
77 stream->rewind();
78 }
79 return NULL;
80 }
81
82 /////////////////////////////////////////////////////////////////////////
83
84 extern SkImageEncoder* SkImageEncoder_JPEG_Factory();
85 extern SkImageEncoder* SkImageEncoder_PNG_Factory();
86
Create(Type t)87 SkImageEncoder* SkImageEncoder::Create(Type t) {
88 switch (t) {
89 #if 0
90 case kJPEG_Type:
91 return SkImageEncoder_JPEG_Factory();
92 case kPNG_Type:
93 return SkImageEncoder_PNG_Factory();
94 #endif
95 default:
96 return NULL;
97 }
98 }
99
100