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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /modules/woff2/src/woff2_out.cc | |
parent | Initial commit. (diff) | |
download | firefox-upstream/124.0.1.tar.xz firefox-upstream/124.0.1.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'modules/woff2/src/woff2_out.cc')
-rw-r--r-- | modules/woff2/src/woff2_out.cc | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/modules/woff2/src/woff2_out.cc b/modules/woff2/src/woff2_out.cc new file mode 100644 index 0000000000..a22d3bf8be --- /dev/null +++ b/modules/woff2/src/woff2_out.cc @@ -0,0 +1,63 @@ +/* Copyright 2014 Google Inc. All Rights Reserved. + + Distributed under MIT license. + See file LICENSE for detail or copy at https://opensource.org/licenses/MIT +*/ + +/* Output buffer for WOFF2 decompression. */ + +#include <woff2/output.h> + +namespace woff2 { + +WOFF2StringOut::WOFF2StringOut(std::string *buf) + : buf_(buf), max_size_(kDefaultMaxSize), offset_(0) {} + +bool WOFF2StringOut::Write(const void *buf, size_t n) { + return Write(buf, offset_, n); +} + +bool WOFF2StringOut::Write(const void *buf, size_t offset, size_t n) { + if (offset > max_size_ || n > max_size_ - offset) { + return false; + } + if (offset == buf_->size()) { + buf_->append(static_cast<const char*>(buf), n); + } else { + if (offset + n > buf_->size()) { + buf_->append(offset + n - buf_->size(), 0); + } + buf_->replace(offset, n, static_cast<const char*>(buf), n); + } + offset_ = std::max(offset_, offset + n); + + return true; +} + +void WOFF2StringOut::SetMaxSize(size_t max_size) { + max_size_ = max_size; + if (offset_ > max_size_) { + offset_ = max_size_; + } +} + +WOFF2MemoryOut::WOFF2MemoryOut(uint8_t* buf, size_t buf_size) + : buf_(buf), + buf_size_(buf_size), + offset_(0) {} + +bool WOFF2MemoryOut::Write(const void *buf, size_t n) { + return Write(buf, offset_, n); +} + +bool WOFF2MemoryOut::Write(const void *buf, size_t offset, size_t n) { + if (offset > buf_size_ || n > buf_size_ - offset) { + return false; + } + std::memcpy(buf_ + offset, buf, n); + offset_ = std::max(offset_, offset + n); + + return true; +} + +} // namespace woff2 |