Cross Reference: /external/chromium_org/pdf/chunk

Lines Matching refs:offset
39 bool ChunkStream::WriteData(size_t offset, void* buffer, size_t size) {
40   if (SIZE_MAX - size < offset)
43   if (data_.size() < offset + size)
44     data_.resize(offset + size);
46   memcpy(&data_[offset], buffer, size);
49     chunks_[offset] = size;
53   std::map<size_t, size_t>::iterator start = chunks_.upper_bound(offset);
55     --start;  // start now points to the key equal or lower than offset.
56   if (start->first + start->second < offset)
59   std::map<size_t, size_t>::iterator end = chunks_.upper_bound(offset + size);
61     chunks_[offset] = size;
67   size_t new_offset = std::min<size_t>(start->first, offset);
69       std::max<size_t>(end->first + end->second, offset + size) - new_offset;
78 bool ChunkStream::ReadData(size_t offset, size_t size, void* buffer) const {
79   if (!IsRangeAvailable(offset, size))
82   memcpy(buffer, &data_[offset], size);
87     size_t offset, size_t size,
89   if (IsRangeAvailable(offset, size))
94     ranges->push_back(std::pair<size_t, size_t>(offset, size));
98   std::map<size_t, size_t>::const_iterator start = chunks_.upper_bound(offset);
100     --start;  // start now points to the key equal or lower than offset.
101   if (start->first + start->second < offset)
105       chunks_.upper_bound(offset + size);
107     ranges->push_back(std::pair<size_t, size_t>(offset, size));
111   size_t cur_offset = offset;
124   if (cur_offset < offset + size)
126         offset + size - cur_offset));
131 bool ChunkStream::IsRangeAvailable(size_t offset, size_t size) const {
135   if (SIZE_MAX - size < offset)
138   std::map<size_t, size_t>::const_iterator it = chunks_.upper_bound(offset);
140     return false;  // No chunks includes offset byte.
142   --it;  // Now it starts equal or before offset.
143   return (it->first + it->second) >= (offset + size);
153 size_t ChunkStream::GetLastByteBefore(size_t offset) const {
156   std::map<size_t, size_t>::const_iterator it = chunks_.upper_bound(offset);
163 size_t ChunkStream::GetFirstByteAfter(size_t offset) const {
166   std::map<size_t, size_t>::const_iterator it = chunks_.upper_bound(offset);