94 lines
2.2 KiB
C++
94 lines
2.2 KiB
C++
#include<hgl/graph/TextureLoader.h>
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#include<hgl/graph/Bitmap.h>
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#include<hgl/io/FileInputStream.h>
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#include<hgl/log/LogInfo.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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bool Texture2DLoader::Load(io::InputStream *is)
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{
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if(!is)return(false);
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if(is->Read(&file_header,sizeof(Tex2DFileHeader))!=sizeof(Tex2DFileHeader))
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return(false);
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if(file_header.version!=2)
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return(false);
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if(file_header.total_bytes()==0)
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return(false);
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const uint total_bytes=file_header.total_bytes();
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if(is->Available()<total_bytes)
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return(false);
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void *ptr=OnBegin(total_bytes);
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if(!ptr)
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return(false);
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if(is->Read(ptr,total_bytes)!=total_bytes)
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OnError();
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OnEnd();
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return(true);
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}
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bool Texture2DLoader::Load(const OSString &filename)
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{
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io::OpenFileInputStream fis(filename);
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if(!fis)
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{
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LOG_ERROR(OS_TEXT("[ERROR] open texture file<")+filename+OS_TEXT("> failed."));
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return(false);
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}
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return this->Load(&fis);
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}
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}//namespace graph
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namespace graph
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{
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Bitmap2DLoader::~Bitmap2DLoader()
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{
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SAFE_CLEAR(bmp);
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}
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void *Bitmap2DLoader::OnBegin(uint32 total_bytes)
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{
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SAFE_CLEAR(bmp);
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bmp=new BitmapData;
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bmp->width =file_header.width;
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bmp->height =file_header.height;
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bmp->total_bytes=total_bytes;
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bmp->data=new char[total_bytes];
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return bmp->data;
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}
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BitmapData *Bitmap2DLoader::GetBitmap()
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{
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BitmapData *result=bmp;
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bmp=nullptr;
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return result;
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}
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BitmapData *LoadBitmapFromFile(const OSString &filename)
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{
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Bitmap2DLoader loader;
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if(!loader.Load(filename))
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return(false);
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return loader.GetBitmap();
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}
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}//namespace graph
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}//namespace hgl
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