diff options
Diffstat (limited to 'src/3rdparty/angle/src/libGLESv2/renderer/d3d/MemoryBuffer.cpp')
-rw-r--r-- | src/3rdparty/angle/src/libGLESv2/renderer/d3d/MemoryBuffer.cpp | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libGLESv2/renderer/d3d/MemoryBuffer.cpp b/src/3rdparty/angle/src/libGLESv2/renderer/d3d/MemoryBuffer.cpp new file mode 100644 index 0000000000..301bbe8d3d --- /dev/null +++ b/src/3rdparty/angle/src/libGLESv2/renderer/d3d/MemoryBuffer.cpp @@ -0,0 +1,72 @@ +// +// Copyright (c) 2014 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 "libGLESv2/renderer/d3d/MemoryBuffer.h" + +#include <algorithm> +#include <cstdlib> + +namespace rx +{ + +MemoryBuffer::MemoryBuffer() + : mSize(0), + mData(NULL) +{ +} + +MemoryBuffer::~MemoryBuffer() +{ + free(mData); + mData = NULL; +} + +bool MemoryBuffer::resize(size_t size) +{ + if (size == 0) + { + free(mData); + mData = NULL; + mSize = 0; + } + else + { + uint8_t *newMemory = reinterpret_cast<uint8_t*>(malloc(sizeof(uint8_t) * size)); + if (newMemory == NULL) + { + return false; + } + + if (mData) + { + // Copy the intersection of the old data and the new data + std::copy(mData, mData + std::min(mSize, size), newMemory); + free(mData); + } + + mData = newMemory; + mSize = size; + } + + return true; +} + +size_t MemoryBuffer::size() const +{ + return mSize; +} + +const uint8_t *MemoryBuffer::data() const +{ + return mData; +} + +uint8_t *MemoryBuffer::data() +{ + return mData; +} + +} |