diff options
Diffstat (limited to 'src/3rdparty/angle/src/compiler/preprocessor/new/Input.cpp')
-rw-r--r-- | src/3rdparty/angle/src/compiler/preprocessor/new/Input.cpp | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/compiler/preprocessor/new/Input.cpp b/src/3rdparty/angle/src/compiler/preprocessor/new/Input.cpp new file mode 100644 index 0000000000..c3de95f313 --- /dev/null +++ b/src/3rdparty/angle/src/compiler/preprocessor/new/Input.cpp @@ -0,0 +1,55 @@ +// +// Copyright (c) 2011 The ANGLE Project Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. +// + +#include "Input.h" + +#include <algorithm> +#include <cassert> +#include <cstring> + +namespace pp +{ + +Input::Input() : mCount(0), mString(0) +{ +} + +Input::Input(int count, const char* const string[], const int length[]) : + mCount(count), + mString(string) +{ + assert(mCount >= 0); + mLength.reserve(mCount); + for (int i = 0; i < mCount; ++i) + { + int len = length ? length[i] : -1; + mLength.push_back(len < 0 ? strlen(mString[i]) : len); + } +} + +int Input::read(char* buf, int maxSize) +{ + int nRead = 0; + while ((nRead < maxSize) && (mReadLoc.sIndex < mCount)) + { + int size = mLength[mReadLoc.sIndex] - mReadLoc.cIndex; + size = std::min(size, maxSize); + memcpy(buf + nRead, mString[mReadLoc.sIndex] + mReadLoc.cIndex, size); + nRead += size; + mReadLoc.cIndex += size; + + // Advance string if we reached the end of current string. + if (mReadLoc.cIndex == mLength[mReadLoc.sIndex]) + { + ++mReadLoc.sIndex; + mReadLoc.cIndex = 0; + } + } + return nRead; +} + +} // namespace pp + |