diff options
Diffstat (limited to 'archive/blr2/src/hgeft.cpp')
| -rw-r--r-- | archive/blr2/src/hgeft.cpp | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/archive/blr2/src/hgeft.cpp b/archive/blr2/src/hgeft.cpp new file mode 100644 index 0000000..479027b --- /dev/null +++ b/archive/blr2/src/hgeft.cpp @@ -0,0 +1,98 @@ +// Freetype2 ext4hge implementations -*- C++ -*- +#include "hgeft.h" +static const char* HGEFT_SRC_FN="hgeft.cpp"; +void hgeTTChar::Free(){if(quad.tex)hge->Texture_Free(quad.tex),quad.tex=0;} +bool hgeTTChar::SetChar(wchar_t ch,FT_Face ttfface) +{ + FT_GlyphSlot slot=ttfface->glyph; + FT_UInt glyph_index=FT_Get_Char_Index(ttfface,ch); + FT_Error err=FT_Load_Glyph(ttfface,glyph_index,FT_LOAD_DEFAULT); + if(err){hge->System_Log("%s: Glyph load failed!",HGEFT_SRC_FN);return false;} + err=FT_Render_Glyph(ttfface->glyph,FT_RENDER_MODE_NORMAL); + if(err){hge->System_Log("%s: Glyph render failed!",HGEFT_SRC_FN);return false;} + _w=slot->advance.x>>6;_h=slot->bitmap.rows;//we are one line only. + rw=slot->bitmap.width;rh=slot->bitmap.rows; + xofst=slot->bitmap_left; + yofst=slot->bitmap.rows-slot->bitmap_top; + quad.tex=hge->Texture_Create( + slot->bitmap.width?slot->bitmap.width:1, + slot->bitmap.rows?slot->bitmap.rows:1); + DWORD* tx=hge->Texture_Lock(quad.tex,false,0,0, + slot->bitmap.width?slot->bitmap.width:1, + slot->bitmap.rows?slot->bitmap.rows:1); + memset(tx,0,sizeof(DWORD)*(slot->bitmap.width?slot->bitmap.width:1)*(slot->bitmap.rows?slot->bitmap.rows:1)); + int ptr=0; + for(int i=0;i<slot->bitmap.rows;++i) + for(int j=0;j<slot->bitmap.width;++j) + { +#ifdef WIN32 + tx[i*slot->bitmap.width+j]=ARGB(slot->bitmap.buffer[ptr],255,255,255); +#else + tx[(slot->bitmap.rows-i-1)*slot->bitmap.width+j]=ARGB(slot->bitmap.buffer[ptr],255,255,255); + //In OpenGL, textures are locked upside down... +#endif + ptr++; + } + hge->Texture_Unlock(quad.tex); + quad.blend=BLEND_ALPHABLEND; + quad.v[0].tx=0;quad.v[0].ty=0;quad.v[1].tx=1;quad.v[1].ty=0; + quad.v[2].tx=1;quad.v[2].ty=1;quad.v[3].tx=0;quad.v[3].ty=1; + return true; +} +void hgeTTChar::Render(double x,double y,DWORD col) +{ + for(int i=0;i<4;++i)quad.v[i].col=col; + quad.v[0].x=x;quad.v[0].y=y-rh+yofst; + quad.v[1].x=x+rw;quad.v[1].y=y-rh+yofst; + quad.v[2].x=x+rw;quad.v[2].y=y+yofst; + quad.v[3].x=x;quad.v[3].y=y+yofst; + hge->Gfx_RenderQuad(&quad); +} +bool hgeTTFont::Init(const char *ttf,int size) +{ + FT_Error err=FT_Init_FreeType(&libft); + if(err){hge->System_Log("%s: Failed to initialize freetype",HGEFT_SRC_FN);return false;} + err=FT_New_Face(libft,ttf,0,&ttfface); + if(err){hge->System_Log("%s: Failed to load font: %s",HGEFT_SRC_FN,ttf);return false;} + err=FT_Set_Char_Size(ttfface,0,size*64,96,96); + return true; +} +void hgeTTFont::UpdateString(const wchar_t *format, ...) +{ + for(int i=0;buf[i]!='\0';++i)chars[i].Free(); + memset(buf,0,sizeof(buf));memset(chars,0,sizeof(chars)); + va_list vl; + va_start(vl,format); + vswprintf(buf,1024,format,vl); + va_end(vl); + buf[1024]='\0'; + w=h=0; + for(int i=0;buf[i]!='\0';++i) + { + chars[i].SetChar(buf[i],ttfface); + w+=chars[i].w(); + if(chars[i].h()>h)h=chars[i].h(); + } +} +void hgeTTFont::Render(double x,double y,DWORD color,int align) +{ + int cur; + if(align==0) + { + cur=x; + for(int i=0;buf[i]!='\0';++i) + { + chars[i].Render(cur,y,color); + cur+=chars[i].w(); + } + } + if(align==1) + { + cur=x; + for(int i=wcslen(buf)-1;i>=0;--i) + { + chars[i].Render(cur,y,color); + cur-=chars[i].w(); + } + } +} |