| 1 | /* |
|---|---|
| 2 | * Copyright 2017 Google Inc. |
| 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 | |
| 9 | #ifndef SkJpegPriv_DEFINED |
| 10 | #define SkJpegPriv_DEFINED |
| 11 | |
| 12 | #include "include/codec/SkEncodedOrigin.h" |
| 13 | #include "include/core/SkStream.h" |
| 14 | #include "include/private/base/SkTArray.h" |
| 15 | |
| 16 | #include <setjmp.h> |
| 17 | // stdio is needed for jpeglib |
| 18 | #include <stdio.h> |
| 19 | |
| 20 | extern "C"{ |
| 21 | #include "jpeglib.h" |
| 22 | #include "jerror.h" |
| 23 | } |
| 24 | |
| 25 | /* |
| 26 | * Error handling struct |
| 27 | */ |
| 28 | struct skjpeg_error_mgr : jpeg_error_mgr { |
| 29 | class AutoPushJmpBuf { |
| 30 | public: |
| 31 | AutoPushJmpBuf(skjpeg_error_mgr* mgr) : fMgr(mgr) { |
| 32 | fMgr->fJmpBufStack.push_back(t: &fJmpBuf); |
| 33 | } |
| 34 | ~AutoPushJmpBuf() { |
| 35 | SkASSERT(fMgr->fJmpBufStack.back() == &fJmpBuf); |
| 36 | fMgr->fJmpBufStack.pop_back(); |
| 37 | } |
| 38 | operator jmp_buf&() { return fJmpBuf; } |
| 39 | |
| 40 | private: |
| 41 | skjpeg_error_mgr* const fMgr; |
| 42 | jmp_buf fJmpBuf; |
| 43 | }; |
| 44 | |
| 45 | skia_private::STArray<4, jmp_buf*> fJmpBufStack; |
| 46 | }; |
| 47 | |
| 48 | namespace SkJpegPriv { |
| 49 | SkEncodedOrigin get_exif_orientation(jpeg_decompress_struct* dinfo); |
| 50 | } |
| 51 | |
| 52 | #endif |
| 53 |