ULRE/src/SceneGraph/TileData.cpp

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#include<hgl/graph/TileData.h>
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#include<hgl/log/LogInfo.h>
#include<hgl/graph/vulkan/VKDevice.h>
#include<hgl/graph/vulkan/VKBuffer.h>
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namespace hgl
{
namespace graph
{
TileData::TileData(Device *dev,Texture2D *tt,const uint tw,const uint th)
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{
device=dev;
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tile_texture=tt;
tile_width=tw;
tile_height=th;
tile_rows=tile_texture->GetHeight()/tile_height;
tile_cols=tile_texture->GetWidth()/tile_width;
tile_max_count=tile_rows*tile_cols;
tile_count=0;
NEW_NULL_ARRAY(tile_object,TileData::Object *,tile_max_count);
tile_bytes=tile_width*tile_height*GetStrideByFormat(tile_texture->GetFormat());
tile_buffer=device->CreateBuffer(VK_BUFFER_USAGE_TRANSFER_SRC_BIT,tile_bytes,nullptr);
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}
TileData::~TileData()
{
SAFE_CLEAR(tile_buffer);
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SAFE_CLEAR(tile_texture);
SAFE_CLEAR_OBJECT_ARRAY(tile_object,tile_max_count);
}
int TileData::FindSpace()
{
if(!tile_object)return(-1);
if(tile_count>=tile_max_count)return(-1);
int n=tile_max_count;
while(n--)
if(!(tile_object[n]))
return(n);
LOG_PROBLEM(OS_TEXT("无法在Tile数据区内找到足够的空间"));
return(-1);
}
void TileData::WriteTile(const int index,TileData::Object *obj,const void *data,const uint bytes,int ctw,int cth)
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{
int col,row;
double left,top;
col=index%tile_cols;
row=index/tile_cols;
left=tile_width *col;
top =tile_height*row;
obj->index =index;
obj->width =(ctw==-1)?tile_width:ctw;
obj->height =(cth==-1)?tile_height:cth;
obj->fl=left/double(tile_texture->GetWidth());
obj->ft=top /double(tile_texture->GetHeight());
obj->fw=double(obj->width)/double(tile_texture->GetWidth());
obj->fh=double(obj->height)/double(tile_texture->GetHeight());
tile_object[index]=obj;
tile_buffer->Write(data,0,bytes);
device->ChangeTexture2D(tile_texture,
tile_buffer,
left,
top,
tile_width,
tile_height);
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//请保留这段代码,以便未来使用时该数据时不会使用
//{
// vertex->Begin(index*6);
// texcoord->Begin(index*6);
// texcoord->WriteRect(obj->fl,obj->ft,obj->fw,obj->fh);
// vertex->WriteRect(0,0,obj->width,obj->height);
// texcoord->End();
// vertex->End();
//}
}
/**
* Tile
* @param data
* @param bytes
* @param ctw tile宽度,-1
* @param cth tile高度,-1
* @return Tile创建的对象
*/
TileData::Object *TileData::Add(const void *data,const uint bytes,const int ctw,const int cth)
{
if(!tile_object)return(nullptr);
int index;
index=FindSpace();
if(index==-1)
{
LOG_PROBLEM(OS_TEXT("找不到空的Tile数据区!"));
return(nullptr);
}
TileData::Object *obj=new TileData::Object;
WriteTile(index,obj,data,bytes,ctw,cth);
tile_count++;
return(obj);
}
/**
* Tile
* @param obj Tile的对象指针
* @return
*/
bool TileData::Delete(TileData::Object *obj)
{
if(!tile_object)return(false);
if(tile_object[obj->index])
{
if(tile_object[obj->index]!=obj)
{
LOG_PROBLEM(OS_TEXT("要删除的TileData::Object和TileData中的不对应"));
return(false);
}
else
{
tile_object[obj->index]=nullptr;
tile_count--;
delete obj;
return(true);
}
}
else
{
LOG_PROBLEM(OS_TEXT("要删除的TileData::Object对象在TileData中不存在"));
return(false);
}
}
/**
* Tile的数据内容
* @param obj Tile的对象指针
* @param data
* @param bytes
* @param ctw tile宽度,-1
* @param cth tile高度,-1
* @return
*/
bool TileData::Change(TileData::Object *obj,const void *data,const uint bytes,const int ctw,const int cth)
{
if(!tile_object)return(false);
if(tile_object[obj->index])
{
if(tile_object[obj->index]!=obj)
{
LOG_PROBLEM(OS_TEXT("要更改的TileData::Object和TileData中的不对应"));
return(false);
}
else
{
WriteTile(obj->index,obj,data,bytes,ctw,cth);
return(true);
}
}
else
{
LOG_PROBLEM(OS_TEXT("要更改的TileData::Object对象在TileData中不存在"));
return(false);
}
}
/**
* Tile数据
*/
void TileData::Clear()
{
if(!tile_object)return;
int n=tile_max_count;
while(n--)
if(tile_object[n])
{
delete tile_object[n];
tile_object[n]=nullptr;
}
}
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}//namespace graph
}//namespace hgl