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// -*- C++ -*-
/*
* Simple MultimEdia LiTerator(SMELT)
* by Chris Xiong 2015
* Bitmap font support implementation
*
* WARNING: This library is in development and interfaces would be very
* unstable.
* This library is developed for the BLR series games.
*/
#include "smbmfont.hpp"
#include <cstdio>
#include <cstring>
#include <cstdarg>
SMELT *smBMFont::sm=NULL;
SMELT *smBMFontw::sm=NULL;
void smBMFont::parseMeta(const char* meta,DWORD size)
{
const char* cp=meta;
char line[65];
int cc,cod,pa,pb;smTexRect rct;
while(cp-meta<=size)
{
cc=0;
for(;*(cp+cc)!='\n'&&cp+cc-meta<=size;++cc);
strncpy(line,cp,cc);if(line[cc]=='\n')line[cc]='\0';
cp+=cc+1;
char* tp=strchr(line,',');
if(tp)*tp='\0';else continue;
sscanf(tp+1,"%d,%f,%f,%f,%f,%d,%d",&cod,&rct.x,&rct.y,&rct.w,&rct.h,&pb,&pa);
if(cod>=0&&cod<256)
{
if(xm.find(std::string(line))==xm.end())
{
char* texct=anm.getFilePtr(line);
DWORD texsz=anm.getFileSize(line);
xm[std::string(line)]=sm->smTextureLoadFromMemory(texct,texsz);
anm.releaseFilePtr(line);
}
chars[cod]=new smEntity2D(xm[std::string(line)],rct);
pdb[cod]=pb;pda[cod]=pa;if(hadv<rct.h)hadv=(float)rct.h;
}
}
}
bool smBMFont::loadAnmFromMemory(const char* ptr,DWORD size)
{
sm=smGetInterface(SMELT_APILEVEL);
anm.openDtpFromMemory(ptr,size);hadv=0;
xm.clear();memset(chars,0,sizeof(chars));
char* mptr=anm.getFilePtr("content.meta");
DWORD msez=anm.getFileSize("content.meta");
parseMeta(mptr,msez);
anm.releaseFilePtr("content.meta");
setBlend(BLEND_ALPHABLEND);
setColor(0xFFFFFFFF);
return true;
}
void smBMFont::close()
{
anm.closeDtp();
for(int i=0;i<256;++i)if(chars[i]){delete chars[i];chars[i]=NULL;}
for(std::map<std::string,SMTEX>::iterator i=xm.begin();i!=xm.end();++i)
sm->smTextureFree(i->second);
xm.clear();
sm->smRelease();
}
void smBMFont::render(float x,float y,float z,int align,float *rw,const char* text)
{
float width=0,cw=0,ofs=x;
const char* t=text;
while(*t)
{
cw=0;
for(;*t&&*t!='\n';++t)
{
if(chars[(int)*t])
cw+=chars[(int)*t]->_w()+pdb[(int)*t]+pda[(int)*t];
}
if(cw>width)width=cw;
while(*t=='\n')++t;
}
width*=sc;
if(rw)*rw=width;
if(align==ALIGN_CENTER)ofs-=width/2.;
if(align==ALIGN_RIGHT)ofs-=width;
while(*text)
{
if(*text=='\n')
{
y+=hadv*sc;ofs=x;
if(align==ALIGN_CENTER)ofs-=width/2.;
if(align==ALIGN_RIGHT)ofs-=width;
}
else
{
if(chars[(int)*text])
{
ofs+=pdb[(int)*text]*sc;
chars[(int)*text]->setZ(z);
chars[(int)*text]->setColor(color);
chars[(int)*text]->setBlend(b);
chars[(int)*text]->render(ofs,y,0,sc);
ofs+=(chars[(int)*text]->_w()+pda[(int)*text])*sc;
}
}
++text;
}
}
void smBMFont::printf(float x,float y,float z,int align,float *rw,const char* format,...)
{
char buf[1024];
va_list vl;
va_start(vl,format);
vsnprintf(buf,sizeof(buf)-1,format,vl);
va_end(vl);
buf[sizeof(buf)-1]='\0';
render(x,y,z,align,rw,buf);
}
void smBMFontw::parseMeta(char* meta,DWORD size)
{
char* cp=meta;
char line[65];
int cc,cod,pa,pb;smTexRect rct;
while(cp-meta<=size)
{
cc=0;
for(;*(cp+cc)!='\n'&&cp+cc-meta<=size;++cc);
strncpy(line,cp,cc);if(line[cc]=='\n')line[cc]='\0';
cp+=cc+1;
char* tp=strchr(line,',');
if(tp)*tp='\0';else continue;
sscanf(tp+1,"%d,%f,%f,%f,%f,%d,%d",&cod,&rct.x,&rct.y,&rct.w,&rct.h,&pb,&pa);
if(cod>=WCHAR_MIN&&cod<=WCHAR_MAX)
{
if(xm.find(std::string(line))==xm.end())
{
char* texct=anm.getFilePtr(line);
DWORD texsz=anm.getFileSize(line);
xm[std::string(line)]=sm->smTextureLoadFromMemory(texct,texsz);
anm.releaseFilePtr(line);
}
chars[cod]=new smEntity2D(xm.find(std::string(line))->second,rct);
pdb[cod]=pb;pda[cod]=pa;if(hadv<rct.h)hadv=(float)rct.h;
}
}
}
bool smBMFontw::loadAnmFromMemory(char* ptr,DWORD size)
{
sm=smGetInterface(SMELT_APILEVEL);
anm.openDtpFromMemory(ptr,size);hadv=0;
xm.clear();chars.clear();pdb.clear();pda.clear();
char* mptr=anm.getFilePtr("content.meta");
DWORD msez=anm.getFileSize("content.meta");
parseMeta(mptr,msez);
anm.releaseFilePtr("content.meta");
return true;
}
void smBMFontw::close()
{
anm.closeDtp();
for(std::map<wchar_t,smEntity2D*>::iterator i=chars.begin();i!=chars.end();++i)if(i->second){delete i->second;i->second=NULL;}
for(std::map<std::string,SMTEX>::iterator i=xm.begin();i!=xm.end();++i)
sm->smTextureFree(i->second);
xm.clear();chars.clear();pdb.clear();pda.clear();
sm->smRelease();
}
void smBMFontw::render(float x,float y,float z,int align,float *rw,const wchar_t* text)
{
float width=0,cw=0,ofs=x;
const wchar_t* t=text;
while(*t)
{
cw=0;
for(;*t&&*t!='\n';++t)
{
if(chars[*t])
cw+=chars[*t]->_w()+pdb[*t]+pda[*t];
}
if(cw>width)width=cw;
while(*t=='\n')++t;
}
width*=sc;
if(rw)*rw=width;
if(align==ALIGN_CENTER)ofs-=width/2.;
if(align==ALIGN_RIGHT)ofs-=width;
while(*text)
{
if(*text=='\n')
{
y+=hadv*sc;ofs=x;
if(align==ALIGN_CENTER)ofs-=width/2.;
if(align==ALIGN_RIGHT)ofs-=width;
}
else
{
if(chars[*text])
{
ofs+=pdb[*text]*sc;
chars[*text]->setZ(z);
chars[*text]->setColor(color);
chars[*text]->setBlend(b);
chars[*text]->render(ofs,y,0,sc);
ofs+=(chars[*text]->_w()+pda[*text])*sc;
}
}
++text;
}
}
void smBMFontw::printf(float x,float y,float z,int align,float *rw,const wchar_t* format,...)
{
wchar_t buf[1025];
va_list vl;
va_start(vl,format);
vswprintf(buf,sizeof(buf)-1,format,vl);
va_end(vl);
buf[1024]=L'\0';
render(x,y,z,align,rw,buf);
}
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