50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
#ifndef HGL_GRAPH_VULKAN_ARRAY_BUFFER_INCLUDE
|
||
#define HGL_GRAPH_VULKAN_ARRAY_BUFFER_INCLUDE
|
||
|
||
#include<hgl/graph/VK.h>
|
||
namespace hgl
|
||
{
|
||
class Collection;
|
||
|
||
namespace graph
|
||
{
|
||
class VKMemoryAllocator;
|
||
|
||
/**
|
||
* GPU数据阵列缓冲区<br>
|
||
* 它用于储存多份相同格式的数据，常用于多物件渲染，instance等
|
||
*/
|
||
class GPUArrayBuffer
|
||
{
|
||
protected:
|
||
|
||
GPUDevice *device;
|
||
VkBufferUsageFlags buffer_usage_flags;
|
||
|
||
uint item_length; ///<单个数据长度
|
||
|
||
VKMemoryAllocator *vk_ma;
|
||
|
||
uint32_t offset_alignment;
|
||
|
||
Collection *coll;
|
||
|
||
public:
|
||
|
||
GPUArrayBuffer(GPUDevice *dev,VkBufferUsageFlags flags,const uint il,VkDescriptorType dt);
|
||
virtual ~GPUArrayBuffer();
|
||
|
||
const uint32_t GetOffsetAlignment()const{return offset_alignment;}
|
||
const uint32_t GetUnitSize()const;
|
||
DeviceBuffer * GetBuffer();
|
||
|
||
uint32 Alloc(const uint32 max_count); ///<预分配空间
|
||
void Clear();
|
||
|
||
void * Map(const uint32 start,const uint32 count);
|
||
void Flush(const uint32 count);
|
||
};//class GPUArrayBuffer
|
||
}//namespace graph
|
||
}//namespace hgl
|
||
#endif//HGL_GRAPH_VULKAN_ARRAY_BUFFER_INCLUDE
|