mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-29 07:42:04 +00:00
a7f1d173a0
- modify line wrap up to 80 chars; (tw=80) - modify size of tab to 2 chars everywhere; (sts=2, sw=2) --HG-- extra : rebase_source : 7eedce0311b340c9a5a1265dc42d3121cc0f32a0 extra : amend_source : 9cb4ffdd5005f5c4c14172390dd00b04b2066cd7
45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef HEAPCOPYOFSTACKARRAY_H_
|
|
#define HEAPCOPYOFSTACKARRAY_H_
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "mozilla/UniquePtr.h"
|
|
|
|
#include <string.h>
|
|
|
|
namespace mozilla {
|
|
|
|
// Takes a stack array and copies it into a heap buffer.
|
|
// Useful to retain the convenience of declaring static arrays, while
|
|
// avoiding passing stack pointers to the GL (see bug 1005658).
|
|
|
|
template <typename ElemType>
|
|
class HeapCopyOfStackArray {
|
|
public:
|
|
template <size_t N>
|
|
MOZ_IMPLICIT HeapCopyOfStackArray(const ElemType (&array)[N])
|
|
: mArrayLength(N), mArrayData(MakeUnique<ElemType[]>(N)) {
|
|
memcpy(mArrayData.get(), &array[0], N * sizeof(ElemType));
|
|
}
|
|
|
|
ElemType* Data() const { return mArrayData.get(); }
|
|
size_t ArrayLength() const { return mArrayLength; }
|
|
size_t ByteLength() const { return mArrayLength * sizeof(ElemType); }
|
|
|
|
private:
|
|
HeapCopyOfStackArray() = delete;
|
|
HeapCopyOfStackArray(const HeapCopyOfStackArray&) = delete;
|
|
|
|
const size_t mArrayLength;
|
|
UniquePtr<ElemType[]> const mArrayData;
|
|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif // HEAPCOPYOFSTACKARRAY_H_
|