michael@0: #include "precompiled.h"
michael@0: //
michael@0: // Copyright (c) 2013 The ANGLE Project Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: //
michael@0: 
michael@0: // BufferStorage9.cpp Defines the BufferStorage9 class.
michael@0: 
michael@0: #include "libGLESv2/renderer/BufferStorage9.h"
michael@0: #include "common/debug.h"
michael@0: 
michael@0: namespace rx
michael@0: {
michael@0: 
michael@0: BufferStorage9::BufferStorage9()
michael@0: {
michael@0:     mMemory = NULL;
michael@0:     mAllocatedSize = 0;
michael@0:     mSize = 0;
michael@0: }
michael@0: 
michael@0: BufferStorage9::~BufferStorage9()
michael@0: {
michael@0:     delete[] mMemory;
michael@0: }
michael@0: 
michael@0: BufferStorage9 *BufferStorage9::makeBufferStorage9(BufferStorage *bufferStorage)
michael@0: {
michael@0:     ASSERT(HAS_DYNAMIC_TYPE(BufferStorage9*, bufferStorage));
michael@0:     return static_cast<BufferStorage9*>(bufferStorage);
michael@0: }
michael@0: 
michael@0: void *BufferStorage9::getData()
michael@0: {
michael@0:     return mMemory;
michael@0: }
michael@0: 
michael@0: void BufferStorage9::setData(const void* data, unsigned int size, unsigned int offset)
michael@0: {
michael@0:     if (!mMemory || offset + size > mAllocatedSize)
michael@0:     {
michael@0:         unsigned int newAllocatedSize = offset + size;
michael@0:         void *newMemory = new char[newAllocatedSize];
michael@0: 
michael@0:         if (offset > 0 && mMemory && mAllocatedSize > 0)
michael@0:         {
michael@0:             memcpy(newMemory, mMemory, std::min(offset, mAllocatedSize));
michael@0:         }
michael@0: 
michael@0:         delete[] mMemory;
michael@0:         mMemory = newMemory;
michael@0:         mAllocatedSize = newAllocatedSize;
michael@0:     }
michael@0: 
michael@0:     mSize = std::max(mSize, offset + size);
michael@0:     if (data)
michael@0:     {
michael@0:         memcpy(reinterpret_cast<char*>(mMemory) + offset, data, size);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void BufferStorage9::clear()
michael@0: {
michael@0:     mSize = 0;
michael@0: }
michael@0: 
michael@0: unsigned int BufferStorage9::getSize() const
michael@0: {
michael@0:     return mSize;
michael@0: }
michael@0: 
michael@0: bool BufferStorage9::supportsDirectBinding() const
michael@0: {
michael@0:     return false;
michael@0: }
michael@0: 
michael@0: }