61 lines
1.3 KiB
C++
61 lines
1.3 KiB
C++
#include<hgl/graph/VKArrayBuffer.h>
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namespace hgl
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{
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namespace graph
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{
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/**
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* 本类构造函数
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* @param d 设备指针
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* @param s 单个数据长度
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* @param c 数据个数
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*/
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GPUArrayBuffer::GPUArrayBuffer(GPUDevice *d,const uint32_t s,const uint32_t c)
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{
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device=d;
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item_size=s;
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count=c;
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alloc_count=power_to_2(c);
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buf_gpu=nullptr;
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buf_cpu=nullptr;
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offset=nullptr;
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}
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GPUArrayBuffer::~GPUArrayBuffer()
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{
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SAFE_CLEAR_ARRAY(offset);
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SAFE_CLEAR(buf_gpu);
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}
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void GPUArrayBuffer::Clear()
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{
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count=0;
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}
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bool GPUArrayBuffer::Init(const uint32_t c)
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{
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if(c<=0)return(false);
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if(!buf_gpu)
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{
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count=c;
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alloc_count=power_to_2(count);
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total_bytes=item_size*alloc_count;
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if(total_bytes<=0)return(false);
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buf_gpu=device->CreateUBO(total_bytes);
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buf_cpu=(uint8 *)(buf_gpu->Map());
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offset=new uint32_t[alloc_count];
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}
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else
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{
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}
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}
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}//namespace graph
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}//namespace hgl
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