forked from organicmaps/organicmaps
59 lines
1.4 KiB
C++
59 lines
1.4 KiB
C++
#include "drape/index_storage.hpp"
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#include "drape/glextensions_list.hpp"
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#include "std/utility.hpp"
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namespace dp
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{
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IndexStorage::IndexStorage(vector<uint32_t> && initial)
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{
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if (IsSupported32bit())
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{
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m_storage32bit = move(initial);
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}
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else
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{
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m_storage16bit.reserve(initial.size());
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for (size_t i = 0; i < initial.size(); i++)
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m_storage16bit.push_back((uint16_t)initial[i]);
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}
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}
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void IndexStorage::Resize(uint32_t size)
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{
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if (IsSupported32bit())
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m_storage32bit.resize(size);
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else
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m_storage16bit.resize(size);
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}
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uint32_t IndexStorage::Size() const
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{
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return IsSupported32bit() ? (uint32_t)m_storage32bit.size() : (uint32_t)m_storage16bit.size();
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}
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void * IndexStorage::GetRaw(uint32_t offsetInElements)
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{
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return IsSupported32bit() ? static_cast<void *>(&m_storage32bit[offsetInElements]) :
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static_cast<void *>(&m_storage16bit[offsetInElements]);
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}
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void const * IndexStorage::GetRawConst() const
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{
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return IsSupported32bit() ? static_cast<void const *>(m_storage32bit.data()) :
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static_cast<void const *>(m_storage16bit.data());
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}
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bool IndexStorage::IsSupported32bit()
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{
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static bool const supports32bit = GLExtensionsList::Instance().IsSupported(GLExtensionsList::UintIndices);
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return supports32bit;
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}
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uint32_t IndexStorage::SizeOfIndex()
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{
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return IsSupported32bit() ? sizeof(uint32_t) : sizeof(uint16_t);
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}
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}
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