| OLD | NEW |
| 1 /* | 1 /* |
| 2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 Google Inc. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
| 6 */ | 6 */ |
| 7 | 7 |
| 8 #include "SkTypes.h" | 8 #include "SkTypes.h" |
| 9 #include "SkDWriteFontFileStream.h" | 9 #include "SkDWriteFontFileStream.h" |
| 10 #include "SkHRESULT.h" | 10 #include "SkHRESULT.h" |
| 11 #include "SkTemplates.h" | 11 #include "SkTemplates.h" |
| 12 #include "SkTFitsIn.h" | 12 #include "SkTFitsIn.h" |
| 13 #include "SkTScopedComPtr.h" | 13 #include "SkTScopedComPtr.h" |
| 14 | 14 |
| 15 #include <dwrite.h> | 15 #include <dwrite.h> |
| 16 | 16 |
| 17 /////////////////////////////////////////////////////////////////////////////// | 17 /////////////////////////////////////////////////////////////////////////////// |
| 18 // SkIDWriteFontFileStream | 18 // SkIDWriteFontFileStream |
| 19 | 19 |
| 20 SkDWriteFontFileStream::SkDWriteFontFileStream(IDWriteFontFileStream* fontFileSt
ream) | 20 SkDWriteFontFileStream::SkDWriteFontFileStream(IDWriteFontFileStream* fontFileSt
ream) |
| 21 : fFontFileStream(SkRefComPtr(fontFileStream)) | 21 : fFontFileStream(SkRefComPtr(fontFileStream)) |
| 22 , fPos(0) | 22 , fPos(0) |
| 23 , fLockedMemory(NULL) | 23 , fLockedMemory(nullptr) |
| 24 , fFragmentLock(NULL) { | 24 , fFragmentLock(nullptr) { |
| 25 } | 25 } |
| 26 | 26 |
| 27 SkDWriteFontFileStream::~SkDWriteFontFileStream() { | 27 SkDWriteFontFileStream::~SkDWriteFontFileStream() { |
| 28 if (fFragmentLock) { | 28 if (fFragmentLock) { |
| 29 fFontFileStream->ReleaseFileFragment(fFragmentLock); | 29 fFontFileStream->ReleaseFileFragment(fFragmentLock); |
| 30 } | 30 } |
| 31 } | 31 } |
| 32 | 32 |
| 33 size_t SkDWriteFontFileStream::read(void* buffer, size_t size) { | 33 size_t SkDWriteFontFileStream::read(void* buffer, size_t size) { |
| 34 HRESULT hr = S_OK; | 34 HRESULT hr = S_OK; |
| 35 | 35 |
| 36 if (NULL == buffer) { | 36 if (nullptr == buffer) { |
| 37 size_t fileSize = this->getLength(); | 37 size_t fileSize = this->getLength(); |
| 38 | 38 |
| 39 if (fPos + size > fileSize) { | 39 if (fPos + size > fileSize) { |
| 40 size_t skipped = fileSize - fPos; | 40 size_t skipped = fileSize - fPos; |
| 41 fPos = fileSize; | 41 fPos = fileSize; |
| 42 return skipped; | 42 return skipped; |
| 43 } else { | 43 } else { |
| 44 fPos += size; | 44 fPos += size; |
| 45 return size; | 45 return size; |
| 46 } | 46 } |
| (...skipping 83 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 130 return fLockedMemory; | 130 return fLockedMemory; |
| 131 } | 131 } |
| 132 | 132 |
| 133 /////////////////////////////////////////////////////////////////////////////// | 133 /////////////////////////////////////////////////////////////////////////////// |
| 134 // SkIDWriteFontFileStreamWrapper | 134 // SkIDWriteFontFileStreamWrapper |
| 135 | 135 |
| 136 HRESULT SkDWriteFontFileStreamWrapper::Create(SkStreamAsset* stream, | 136 HRESULT SkDWriteFontFileStreamWrapper::Create(SkStreamAsset* stream, |
| 137 SkDWriteFontFileStreamWrapper** st
reamFontFileStream) | 137 SkDWriteFontFileStreamWrapper** st
reamFontFileStream) |
| 138 { | 138 { |
| 139 *streamFontFileStream = new SkDWriteFontFileStreamWrapper(stream); | 139 *streamFontFileStream = new SkDWriteFontFileStreamWrapper(stream); |
| 140 if (NULL == streamFontFileStream) { | 140 if (nullptr == streamFontFileStream) { |
| 141 return E_OUTOFMEMORY; | 141 return E_OUTOFMEMORY; |
| 142 } | 142 } |
| 143 return S_OK; | 143 return S_OK; |
| 144 } | 144 } |
| 145 | 145 |
| 146 SkDWriteFontFileStreamWrapper::SkDWriteFontFileStreamWrapper(SkStreamAsset* stre
am) | 146 SkDWriteFontFileStreamWrapper::SkDWriteFontFileStreamWrapper(SkStreamAsset* stre
am) |
| 147 : fRefCount(1), fStream(stream) { | 147 : fRefCount(1), fStream(stream) { |
| 148 } | 148 } |
| 149 | 149 |
| 150 HRESULT STDMETHODCALLTYPE SkDWriteFontFileStreamWrapper::QueryInterface(REFIID i
id, void** ppvObject) { | 150 HRESULT STDMETHODCALLTYPE SkDWriteFontFileStreamWrapper::QueryInterface(REFIID i
id, void** ppvObject) { |
| 151 if (iid == IID_IUnknown || iid == __uuidof(IDWriteFontFileStream)) { | 151 if (iid == IID_IUnknown || iid == __uuidof(IDWriteFontFileStream)) { |
| 152 *ppvObject = this; | 152 *ppvObject = this; |
| 153 AddRef(); | 153 AddRef(); |
| 154 return S_OK; | 154 return S_OK; |
| 155 } else { | 155 } else { |
| 156 *ppvObject = NULL; | 156 *ppvObject = nullptr; |
| 157 return E_NOINTERFACE; | 157 return E_NOINTERFACE; |
| 158 } | 158 } |
| 159 } | 159 } |
| 160 | 160 |
| 161 ULONG STDMETHODCALLTYPE SkDWriteFontFileStreamWrapper::AddRef() { | 161 ULONG STDMETHODCALLTYPE SkDWriteFontFileStreamWrapper::AddRef() { |
| 162 return InterlockedIncrement(&fRefCount); | 162 return InterlockedIncrement(&fRefCount); |
| 163 } | 163 } |
| 164 | 164 |
| 165 ULONG STDMETHODCALLTYPE SkDWriteFontFileStreamWrapper::Release() { | 165 ULONG STDMETHODCALLTYPE SkDWriteFontFileStreamWrapper::Release() { |
| 166 ULONG newCount = InterlockedDecrement(&fRefCount); | 166 ULONG newCount = InterlockedDecrement(&fRefCount); |
| 167 if (0 == newCount) { | 167 if (0 == newCount) { |
| 168 delete this; | 168 delete this; |
| 169 } | 169 } |
| 170 return newCount; | 170 return newCount; |
| 171 } | 171 } |
| 172 | 172 |
| 173 HRESULT STDMETHODCALLTYPE SkDWriteFontFileStreamWrapper::ReadFileFragment( | 173 HRESULT STDMETHODCALLTYPE SkDWriteFontFileStreamWrapper::ReadFileFragment( |
| 174 void const** fragmentStart, | 174 void const** fragmentStart, |
| 175 UINT64 fileOffset, | 175 UINT64 fileOffset, |
| 176 UINT64 fragmentSize, | 176 UINT64 fragmentSize, |
| 177 void** fragmentContext) | 177 void** fragmentContext) |
| 178 { | 178 { |
| 179 // The loader is responsible for doing a bounds check. | 179 // The loader is responsible for doing a bounds check. |
| 180 UINT64 fileSize; | 180 UINT64 fileSize; |
| 181 this->GetFileSize(&fileSize); | 181 this->GetFileSize(&fileSize); |
| 182 if (fileOffset > fileSize || fragmentSize > fileSize - fileOffset) { | 182 if (fileOffset > fileSize || fragmentSize > fileSize - fileOffset) { |
| 183 *fragmentStart = NULL; | 183 *fragmentStart = nullptr; |
| 184 *fragmentContext = NULL; | 184 *fragmentContext = nullptr; |
| 185 return E_FAIL; | 185 return E_FAIL; |
| 186 } | 186 } |
| 187 | 187 |
| 188 if (!SkTFitsIn<size_t>(fileOffset + fragmentSize)) { | 188 if (!SkTFitsIn<size_t>(fileOffset + fragmentSize)) { |
| 189 return E_FAIL; | 189 return E_FAIL; |
| 190 } | 190 } |
| 191 | 191 |
| 192 const void* data = fStream->getMemoryBase(); | 192 const void* data = fStream->getMemoryBase(); |
| 193 if (data) { | 193 if (data) { |
| 194 *fragmentStart = static_cast<BYTE const*>(data) + static_cast<size_t>(fi
leOffset); | 194 *fragmentStart = static_cast<BYTE const*>(data) + static_cast<size_t>(fi
leOffset); |
| 195 *fragmentContext = NULL; | 195 *fragmentContext = nullptr; |
| 196 | 196 |
| 197 } else { | 197 } else { |
| 198 // May be called from multiple threads. | 198 // May be called from multiple threads. |
| 199 SkAutoMutexAcquire ama(fStreamMutex); | 199 SkAutoMutexAcquire ama(fStreamMutex); |
| 200 | 200 |
| 201 *fragmentStart = NULL; | 201 *fragmentStart = nullptr; |
| 202 *fragmentContext = NULL; | 202 *fragmentContext = nullptr; |
| 203 | 203 |
| 204 if (!fStream->seek(static_cast<size_t>(fileOffset))) { | 204 if (!fStream->seek(static_cast<size_t>(fileOffset))) { |
| 205 return E_FAIL; | 205 return E_FAIL; |
| 206 } | 206 } |
| 207 SkAutoTMalloc<uint8_t> streamData(static_cast<size_t>(fragmentSize)); | 207 SkAutoTMalloc<uint8_t> streamData(static_cast<size_t>(fragmentSize)); |
| 208 if (fStream->read(streamData.get(), static_cast<size_t>(fragmentSize)) !
= fragmentSize) { | 208 if (fStream->read(streamData.get(), static_cast<size_t>(fragmentSize)) !
= fragmentSize) { |
| 209 return E_FAIL; | 209 return E_FAIL; |
| 210 } | 210 } |
| 211 | 211 |
| 212 *fragmentStart = streamData.get(); | 212 *fragmentStart = streamData.get(); |
| 213 *fragmentContext = streamData.detach(); | 213 *fragmentContext = streamData.detach(); |
| 214 } | 214 } |
| 215 return S_OK; | 215 return S_OK; |
| 216 } | 216 } |
| 217 | 217 |
| 218 void STDMETHODCALLTYPE SkDWriteFontFileStreamWrapper::ReleaseFileFragment(void*
fragmentContext) { | 218 void STDMETHODCALLTYPE SkDWriteFontFileStreamWrapper::ReleaseFileFragment(void*
fragmentContext) { |
| 219 sk_free(fragmentContext); | 219 sk_free(fragmentContext); |
| 220 } | 220 } |
| 221 | 221 |
| 222 HRESULT STDMETHODCALLTYPE SkDWriteFontFileStreamWrapper::GetFileSize(UINT64* fil
eSize) { | 222 HRESULT STDMETHODCALLTYPE SkDWriteFontFileStreamWrapper::GetFileSize(UINT64* fil
eSize) { |
| 223 *fileSize = fStream->getLength(); | 223 *fileSize = fStream->getLength(); |
| 224 return S_OK; | 224 return S_OK; |
| 225 } | 225 } |
| 226 | 226 |
| 227 HRESULT STDMETHODCALLTYPE SkDWriteFontFileStreamWrapper::GetLastWriteTime(UINT64
* lastWriteTime) { | 227 HRESULT STDMETHODCALLTYPE SkDWriteFontFileStreamWrapper::GetLastWriteTime(UINT64
* lastWriteTime) { |
| 228 // The concept of last write time does not apply to this loader. | 228 // The concept of last write time does not apply to this loader. |
| 229 *lastWriteTime = 0; | 229 *lastWriteTime = 0; |
| 230 return E_NOTIMPL; | 230 return E_NOTIMPL; |
| 231 } | 231 } |
| OLD | NEW |