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decode_everything.cpp
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1/*
2 * Copyright 2023 Google LLC
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#include "include/codec/SkBmpDecoder.h"
9#include "include/codec/SkCodec.h"
10#include "include/codec/SkGifDecoder.h"
11#include "include/codec/SkIcoDecoder.h"
12#include "include/codec/SkJpegDecoder.h"
13#include "include/codec/SkJpegxlDecoder.h"
14#include "include/codec/SkPngDecoder.h"
15#include "include/codec/SkWbmpDecoder.h"
16#include "include/codec/SkWebpDecoder.h"
17#include "include/core/SkData.h"
18#include "include/core/SkImageInfo.h"
19#include "include/core/SkStream.h"
20
21#include <cstdio>
22#include <memory>
23
24int main(int argc, char** argv) {
25 if (argc != 2) {
26 printf("Usage: %s <name.png>", argv[0]);
27 return 1;
28 }
29
30 std::unique_ptr<SkFILEStream> input = SkFILEStream::Make(argv[1]);
31 if (!input || !input->isValid()) {
32 printf("Cannot open file %s\n", argv[1]);
33 return 1;
34 }
35
36 sk_sp<SkData> data = SkData::MakeFromStream(input.get(), input->getLength());
37
38 std::unique_ptr<SkCodec> codec = nullptr;
39 if (SkBmpDecoder::IsBmp(data->bytes(), data->size())) {
40 codec = SkBmpDecoder::Decode(data, nullptr);
41 } else if (SkGifDecoder::IsGif(data->bytes(), data->size())) {
42 codec = SkGifDecoder::Decode(data, nullptr);
43 } else if (SkIcoDecoder::IsIco(data->bytes(), data->size())) {
44 codec = SkIcoDecoder::Decode(data, nullptr);
45 } else if (SkJpegDecoder::IsJpeg(data->bytes(), data->size())) {
46 codec = SkJpegDecoder::Decode(data, nullptr);
47 } else if (SkJpegxlDecoder::IsJpegxl(data->bytes(), data->size())) {
48 codec = SkJpegxlDecoder::Decode(data, nullptr);
49 } else if (SkPngDecoder::IsPng(data->bytes(), data->size())) {
50 codec = SkPngDecoder::Decode(data, nullptr);
51 } else if (SkWbmpDecoder::IsWbmp(data->bytes(), data->size())) {
52 codec = SkWbmpDecoder::Decode(data, nullptr);
53 } else if (SkWebpDecoder::IsWebp(data->bytes(), data->size())) {
54 codec = SkWebpDecoder::Decode(data, nullptr);
55 } else {
56 printf("Unsupported file format\n");
57 return 1;
58 }
59
60 SkImageInfo info = codec->getInfo();
61 printf("Image is %d by %d pixels.\n", info.width(), info.height());
62
63 return 0;
64}
info
static void info(const char *fmt,...) SK_PRINTF_LIKE(1
Definition DM.cpp:213
SkData::MakeFromStream
static sk_sp< SkData > MakeFromStream(SkStream *, size_t size)
Definition SkData.cpp:208
SkFILEStream::Make
static std::unique_ptr< SkFILEStream > Make(const char path[])
Definition SkStream.h:314
sk_sp
Definition SkRefCnt.h:220
argv
char ** argv
Definition library.h:9
SkBmpDecoder::IsBmp
SK_API bool IsBmp(const void *, size_t)
Definition SkBmpCodec.cpp:670
SkBmpDecoder::Decode
SK_API std::unique_ptr< SkCodec > Decode(std::unique_ptr< SkStream >, SkCodec::Result *, SkCodecs::DecodeContext=nullptr)
Definition SkBmpCodec.cpp:674
SkGifDecoder::Decode
SK_API std::unique_ptr< SkCodec > Decode(std::unique_ptr< SkStream >, SkCodec::Result *, SkCodecs::DecodeContext=nullptr)
Definition SkWuffsCodec.cpp:1082
SkGifDecoder::IsGif
SK_API bool IsGif(const void *, size_t)
Definition SkWuffsCodec.cpp:977
SkIcoDecoder::IsIco
SK_API bool IsIco(const void *, size_t)
Definition SkIcoCodec.cpp:413
SkIcoDecoder::Decode
SK_API std::unique_ptr< SkCodec > Decode(std::unique_ptr< SkStream >, SkCodec::Result *, SkCodecs::DecodeContext=nullptr)
Definition SkIcoCodec.cpp:417
SkJpegDecoder::IsJpeg
SK_API bool IsJpeg(const void *, size_t)
Definition SkJpegCodec.cpp:1389
SkJpegDecoder::Decode
SK_API std::unique_ptr< SkCodec > Decode(std::unique_ptr< SkStream >, SkCodec::Result *, SkCodecs::DecodeContext=nullptr)
Definition SkJpegCodec.cpp:1393
SkJpegxlDecoder::IsJpegxl
SK_API bool IsJpegxl(const void *, size_t)
Definition SkJpegxlCodec.cpp:470
SkJpegxlDecoder::Decode
SK_API std::unique_ptr< SkCodec > Decode(std::unique_ptr< SkStream >, SkCodec::Result *, SkCodecs::DecodeContext=nullptr)
Definition SkJpegxlCodec.cpp:474
SkPngDecoder::Decode
SK_API std::unique_ptr< SkCodec > Decode(std::unique_ptr< SkStream >, SkCodec::Result *, SkCodecs::DecodeContext=nullptr)
Definition SkPngCodec.cpp:1238
SkPngDecoder::IsPng
SK_API bool IsPng(const void *, size_t)
Definition SkPngCodec.cpp:1234
SkWbmpDecoder::IsWbmp
SK_API bool IsWbmp(const void *, size_t)
Definition SkWbmpCodec.cpp:212
SkWbmpDecoder::Decode
SK_API std::unique_ptr< SkCodec > Decode(std::unique_ptr< SkStream >, SkCodec::Result *, SkCodecs::DecodeContext=nullptr)
Definition SkWbmpCodec.cpp:216
SkWebpDecoder::Decode
SK_API std::unique_ptr< SkCodec > Decode(std::unique_ptr< SkStream >, SkCodec::Result *, SkCodecs::DecodeContext=nullptr)
Definition SkWebpCodec.cpp:589
SkWebpDecoder::IsWebp
SK_API bool IsWebp(const void *, size_t)
Definition SkWebpCodec.cpp:585
main
Definition main.py:1
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