122 lines
3.4 KiB
C++
122 lines
3.4 KiB
C++
#include"TextureFileCreater.h"
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#include<hgl/filesystem/FileSystem.h>
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namespace
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{
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/**
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* 截取完整路径中的路径名和文件名
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* @param pathname 拆分后的路径名
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* @param filename 拆分后的文件名
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* @param fullname 拆分前的完整路径文件名
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*/
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template<typename T>
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inline bool SplitFilename(BaseString<T> &pathname,BaseString<T> &filename,const BaseString<T> &fullname)
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{
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if(fullname.Length()<=1)
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return false;
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const T spear_char[] = { '/','\\' };
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const int pos=fullname.FindRightChar(spear_char);
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if(pos==-1)
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return(false);
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pathname.Strcpy(fullname,pos);
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filename.Strcpy(fullname.c_str()+pos+1);
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return(true);
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}
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template<typename T>
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inline BaseString<T> ReplaceExtName(const BaseString<T> &old_name,const BaseString<T> &new_extname,const T split_char='.')
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{
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if(old_name.Length()<=1)
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return(BaseString<T>::charOf(split_char)+new_extname);
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const int pos=old_name.FindRightChar(split_char);
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if(pos==-1)
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return old_name.SubString(0,pos+1)+new_extname;
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else
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return old_name+BaseString<T>(split_char)+new_extname;
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}
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}//namespace
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bool ToILType(ILuint &type,const uint8 bits,const ColorDataType cdt)
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{
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constexpr ILuint target_type[3][(uint)ColorDataType::END-1]=
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{
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//UNORM SNORM UINT SINT, USCALE,SSCALE, UFLOAT SFLOAT
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{IL_UNSIGNED_BYTE, IL_BYTE, IL_UNSIGNED_BYTE, IL_BYTE, 0,0, 0, 0},
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{IL_UNSIGNED_SHORT, IL_SHORT, IL_UNSIGNED_SHORT, IL_SHORT, 0,0, IL_HALF, IL_HALF},
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{IL_UNSIGNED_INT, IL_INT, IL_UNSIGNED_INT, IL_INT, 0,0, IL_FLOAT, IL_FLOAT}
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};
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if(bits<=8 )type=target_type[0][(uint)cdt-1];else
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if(bits<=16 )type=target_type[1][(uint)cdt-1];else
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if(bits<=32 )type=target_type[2][(uint)cdt-1];else
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return(false);
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return(type);
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}
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TextureFileCreater::TextureFileCreater(const PixelFormat *pf,ILImage *img)
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{
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fmt=pf;
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image=img;
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pixel_total=image->pixel_total();
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pixel_bytes=pf->GetPixelBytes();
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total_bytes=pixel_total*pixel_bytes;
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dos=nullptr;
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}
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TextureFileCreater::~TextureFileCreater()
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{
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SAFE_CLEAR(dos);
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}
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bool TextureFileCreater::WriteFileHeader(const OSString &old_filename)
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{
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OSString pn,fn;
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SplitFilename<os_char>(pn,fn,old_filename);
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filename=ReplaceExtName<os_char>(old_filename,OS_TEXT(".Tex2D"));
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if(!fos.CreateTrunc(filename))
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return(false);
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dos=new io::LEDataOutputStream(&fos);
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dos->Write("Tex2D\x1A",6);
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dos->WriteUint8(2); //版本
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dos->WriteBool(false); //是否有mipmaps
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dos->WriteUint32(image->width());
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dos->WriteUint32(image->height());
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dos->WriteUint8(fmt->channels); //颜色通道数
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dos->WriteUint8((uint8 *)fmt->color,fmt->channels); //颜色标记
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dos->WriteUint8(fmt->bits,fmt->channels); //颜色位数
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dos->WriteUint8((uint8)fmt->type); //数据类型
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return(true);
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}
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bool TextureFileCreater::Write(void *data)
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{
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return(dos->Write(data,total_bytes)==total_bytes);
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}
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void TextureFileCreater::Close()
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{
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SAFE_CLEAR(dos);
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fos.Close();
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}
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void TextureFileCreater::Delete()
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{
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Close();
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filesystem::FileDelete(filename);
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} |