51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/*
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* Copyright 2016 Henri Verbeet for CodeWeavers
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* Copyright 2017 Józef Kucia for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#define VKD3D_DBG_CHANNEL VKD3D_DBG_CHANNEL_API
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#include "vkd3d_memory.h"
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bool vkd3d_array_reserve(void **elements, size_t *capacity, size_t element_count, size_t element_size)
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{
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size_t new_capacity, max_capacity;
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void *new_elements;
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if (element_count <= *capacity)
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return true;
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max_capacity = ~(size_t)0 / element_size;
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if (max_capacity < element_count)
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return false;
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new_capacity = max(*capacity, 4);
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while (new_capacity < element_count && new_capacity <= max_capacity / 2)
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new_capacity *= 2;
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if (new_capacity < element_count)
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new_capacity = element_count;
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if (!(new_elements = vkd3d_realloc(*elements, new_capacity * element_size)))
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return false;
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*elements = new_elements;
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*capacity = new_capacity;
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return true;
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}
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