51 lines
1.9 KiB
C++
51 lines
1.9 KiB
C++
#ifndef HGL_GRAPH_VULKAN_INDEX_BUFFER_INCLUDE
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#define HGL_GRAPH_VULKAN_INDEX_BUFFER_INCLUDE
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#include<hgl/graph/VKBuffer.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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class IndexBuffer:public DeviceBuffer
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{
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IndexType index_type;
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uint stride;
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uint32_t count;
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private:
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friend class GPUDevice;
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IndexBuffer(VkDevice d,const DeviceBufferData &vb,IndexType it,uint32_t _count):DeviceBuffer(d,vb)
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{
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index_type=it;
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count=_count;
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if(index_type==IndexType::U16)stride=2;else
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if(index_type==IndexType::U32)stride=4;else
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if(index_type==IndexType::U8)stride=1;else
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stride=0;
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}
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public:
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~IndexBuffer()=default;
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const IndexType GetType ()const{return index_type;}
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const uint GetStride ()const{return stride;}
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const uint32 GetCount ()const{return count;}
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public:
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void * Map (VkDeviceSize start,VkDeviceSize size) override {return DeviceBuffer::Map(start*stride,size*stride);}
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void Flush (VkDeviceSize start,VkDeviceSize size) override {return DeviceBuffer::Flush(start*stride,size*stride); }
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void Flush (VkDeviceSize size) override {return DeviceBuffer::Flush(size*stride);}
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bool Write (const void *ptr,uint32_t start,uint32_t size) override {return DeviceBuffer::Write(ptr,start*stride,size*stride);}
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bool Write (const void *ptr,uint32_t size) override {return DeviceBuffer::Write(ptr,0,size*stride);}
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};//class IndexBuffer:public DeviceBuffer
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}//namespace graph
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}//namespace hgl
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#endif//HGL_GRAPH_VULKAN_INDEX_BUFFER_INCLUDE
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