diff options
Diffstat (limited to 'src/libjin/3rdparty/Box2D/Common/b2StackAllocator.cpp')
-rw-r--r-- | src/libjin/3rdparty/Box2D/Common/b2StackAllocator.cpp | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/src/libjin/3rdparty/Box2D/Common/b2StackAllocator.cpp b/src/libjin/3rdparty/Box2D/Common/b2StackAllocator.cpp deleted file mode 100644 index 1347f3c..0000000 --- a/src/libjin/3rdparty/Box2D/Common/b2StackAllocator.cpp +++ /dev/null @@ -1,83 +0,0 @@ -/* -* Copyright (c) 2006-2009 Erin Catto http://www.box2d.org -* -* This software is provided 'as-is', without any express or implied -* warranty. In no event will the authors be held liable for any damages -* arising from the use of this software. -* Permission is granted to anyone to use this software for any purpose, -* including commercial applications, and to alter it and redistribute it -* freely, subject to the following restrictions: -* 1. The origin of this software must not be misrepresented; you must not -* claim that you wrote the original software. If you use this software -* in a product, an acknowledgment in the product documentation would be -* appreciated but is not required. -* 2. Altered source versions must be plainly marked as such, and must not be -* misrepresented as being the original software. -* 3. This notice may not be removed or altered from any source distribution. -*/ - -#include "Box2D/Common/b2StackAllocator.h" -#include "Box2D/Common/b2Math.h" - -b2StackAllocator::b2StackAllocator() -{ - m_index = 0; - m_allocation = 0; - m_maxAllocation = 0; - m_entryCount = 0; -} - -b2StackAllocator::~b2StackAllocator() -{ - b2Assert(m_index == 0); - b2Assert(m_entryCount == 0); -} - -void* b2StackAllocator::Allocate(int32 size) -{ - b2Assert(m_entryCount < b2_maxStackEntries); - - b2StackEntry* entry = m_entries + m_entryCount; - entry->size = size; - if (m_index + size > b2_stackSize) - { - entry->data = (char*)b2Alloc(size); - entry->usedMalloc = true; - } - else - { - entry->data = m_data + m_index; - entry->usedMalloc = false; - m_index += size; - } - - m_allocation += size; - m_maxAllocation = b2Max(m_maxAllocation, m_allocation); - ++m_entryCount; - - return entry->data; -} - -void b2StackAllocator::Free(void* p) -{ - b2Assert(m_entryCount > 0); - b2StackEntry* entry = m_entries + m_entryCount - 1; - b2Assert(p == entry->data); - if (entry->usedMalloc) - { - b2Free(p); - } - else - { - m_index -= entry->size; - } - m_allocation -= entry->size; - --m_entryCount; - - p = nullptr; -} - -int32 b2StackAllocator::GetMaxAllocation() const -{ - return m_maxAllocation; -} |