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/** * HGE FreeType2 font system support. This system makes HGE * support multibyte language. * * Special thanks to uirou, he wrote some codes to make Irrlicht * engine support multibyte language. And now i use some of his codes * here to make HGE do the same fever to HGE-users. * * Original author in Irrlicht : uirou * Modified version in HGE : Kevin Lynx * mail : zmhn320@163.com * Date : 8/18/2007 * * this class depends on HGE 1.6 (maybe later version is avaiable too )and * FreeType 2.2.1 */ #include "../../include/hge/hgeTTFont.h" #include "../../include/hge/hgefont.h" hgeTTFace::hgeTTFace() { loaded = false; } hgeTTFace::~hgeTTFace() { if (loaded){ FT_Done_Face(face); FT_Done_FreeType(library); } } bool hgeTTFace::load(const char* filename) { if (FT_Init_FreeType( &library )){ return false; } if (FT_New_Face( library,filename,0,&face )){ return false; } loaded = true; return true; } hgeTTGlyph::hgeTTGlyph() { tex = NULL; //tex16 = NULL; image = NULL; } hgeTTGlyph::~hgeTTGlyph() { if (image) delete image; if (tex){ hge->Texture_Free( tex ); } /* if (tex16){ hge->Texture_Free( tex16 ); } */ } void hgeTTGlyph::init() { tex = NULL; //tex16 = NULL; image = NULL; } void hgeTTGlyph::cache(unsigned int idx) { FT_Set_Pixel_Sizes(*face,0,size); if (!FT_Load_Glyph(*face,idx,FT_LOAD_NO_HINTING|FT_LOAD_NO_BITMAP)){ FT_GlyphSlot glyph = (*face)->glyph; FT_Bitmap bits; if (glyph->format == ft_glyph_format_outline ){ if (!FT_Render_Glyph( glyph, FT_RENDER_MODE_NORMAL)){ bits = glyph->bitmap; unsigned char *pt = bits.buffer; image = new unsigned char[bits.width * bits.rows]; memcpy(image,pt,bits.width * bits.rows); top = glyph->bitmap_top; left = glyph->bitmap_left; imgw = 1; imgh = 1; texw = bits.width; texh = bits.rows; for(;;){ if (imgw > texw){ break; }else { imgw <<= 1; } } for(;;){ if (imgh > texh){ break; }else { imgh <<= 1; } } if (imgw > imgh){ imgh = imgw; }else { imgw = imgh; } unsigned int *texd = new unsigned int[imgw*imgh]; memset(texd,0,imgw*imgh*sizeof(unsigned int)); unsigned int *texp = texd; offset = size - bits.rows; bool cflag = true;//(Driver->getDriverType() == video::EDT_DIRECT3D8); for (int i = 0;i < bits.rows;i++){ unsigned int *rowp = texp; for (int j = 0;j < bits.width;j++){ if (*pt){ if (cflag){ *rowp = *pt; *rowp *= 0x01010101; }else { *rowp = *pt << 24; *rowp |= 0xffffff; } }else { *rowp = 0; } pt++; rowp++; } texp += imgw; } char name[MAX_PATH]; sprintf_s(name, MAX_PATH, "TTFontGlyph%d",idx); //video::IImage *img = Driver->createImageFromData(video::ECF_A8R8G8B8,core::dimension2d<int>(imgw,imgh),texd); if (tex){ hge->Texture_Free( tex ); } tex = createTexture( texd, imgw, imgh ); delete texd; cached = true; } } } } HTEXTURE hgeTTGlyph::createTexture( unsigned int *data, int w, int h ) { HTEXTURE tex = hge->Texture_Create( w, h ); DWORD *color = hge->Texture_Lock( tex, false ); memcpy( color, data, sizeof( unsigned int ) * w * h ); hge->Texture_Unlock( tex ); return tex; } //////////////////////////////////////////////////////// hgeTTFont::hgeTTFont(HGE *_hge) { hge = _hge; //TransParency = false; attached = false; GlobalKerningWidth = 0; GlobalKerningHeight = 0; mColor = ARGB( 255, 255, 255, 255 ); spr = new hgeSprite( 0, 0, 0, 0, 0 ); spr->SetZ(0.0f); //lj我写的，这样文字在最前边显示压住图片 } hgeTTFont::~hgeTTFont() { if (attached) { //delete tt_face; } attached = false; delete spr; } bool hgeTTFont::attach(hgeTTFace *Face,unsigned int size) { if (!hge) return false; if (attached){ //delete tt_face; tt_face = 0; } tt_face = Face; this->size = size; hgeTTGlyph tmp; int*tmp2; Glyphs.resize( tt_face->face->num_glyphs ); //Glyphs.reallocate(tt_face->face->num_glyphs); //Glyphs.set_used(tt_face->face->num_glyphs); for (int i = 0;i < tt_face->face->num_glyphs;i++){ Glyphs[i].hge = hge; Glyphs[i].size = size; Glyphs[i].face = &(tt_face->face); Glyphs[i].cached = false; tmp2 = (int*)&(Glyphs[i]); *tmp2 = *(int*)(&tmp); Glyphs[i].init(); } attached = true; return true; } unsigned int hgeTTFont::getGlyphByChar(wchar_t c){ unsigned int idx = FT_Get_Char_Index( tt_face->face, c ); if (idx && !Glyphs[idx - 1].cached) Glyphs[idx - 1].cache(idx); return idx; } hgeTTFont::Size hgeTTFont::getDimension(const wchar_t* text) { Size dim(0, Glyphs[0].size); for(const wchar_t* p = text; *p; ++p) { dim.width += getWidthFromCharacter(*p) + GlobalKerningWidth; } return dim; } inline int hgeTTFont::getWidthFromCharacter(wchar_t c) { unsigned int n = getGlyphByChar(c); if ( n > 0){ int w = Glyphs[n - 1].texw; int left = Glyphs[n - 1].left; if (w + left > 0) return w + left; } if (c >= 0x2000){ return Glyphs[0].size; }else { return Glyphs[0].size / 2; } } DWORD hgeTTFont::GetColor() { return mColor; } void hgeTTFont::SetColor( DWORD color ) { mColor = color; } void hgeTTFont::SetSpacing( float spacing ) { this->setKerningWidth( static_cast<int>( spacing ) ); } float hgeTTFont::GetSpacing() { return static_cast<float>( getKerningWidth() ); } float hgeTTFont::GetStringWidth( const wchar_t *str ) { Size textDimension = getDimension( str ); return static_cast<float>( textDimension.width ); } float hgeTTFont::GetHeight() { Size textDimension = getDimension( L"A" ); return static_cast<float>( textDimension.height ); } void hgeTTFont::Render( float offsetX, float offsetY, int align, const wchar_t *text ) { if( align != HGETEXT_LEFT ) { Size textDimension; textDimension = getDimension(text); if( align == HGETEXT_CENTER ) offsetX = offsetX - ( textDimension.width >>1 ); if( align == HGETEXT_RIGHT ) offsetX = offsetX - textDimension.width; } unsigned int n; while(*text) { n = getGlyphByChar(*text); if ( n > 0) { int imgw = Glyphs[n-1].imgw; int imgh = Glyphs[n-1].imgh; int texw = Glyphs[n-1].texw; int texh = Glyphs[n-1].texh; int offx = Glyphs[n-1].left; int offy = Glyphs[n-1].size - Glyphs[n-1].top; spr->SetTexture( Glyphs[n-1].tex ); spr->SetTextureRect( 0, 0, imgw-1.0f, imgh-1.0f ); spr->SetColor( mColor ); spr->Render( offsetX + offx, offsetY + offy ); offsetX += getWidthFromCharacter(*text) + GlobalKerningWidth; } else { offsetX += getWidthFromCharacter(*text) + GlobalKerningWidth; } ++text; } } void hgeTTFont::printf( float x, float y, int align, const wchar_t *format, ... ) { va_list l; va_start( l, format ); wchar_t text[1024]; wvsprintfW( text, format, l ); Render( x, y, align, text ); } void hgeTTFont::Render( float offsetX, float offsetY, const wchar_t* text, bool hcenter, bool vcenter ) { if( hcenter || vcenter ) { Size textDimension; textDimension = getDimension(text); if (hcenter) offsetX = offsetX - ( textDimension.width >> 1 ); if (vcenter) offsetY = offsetY - ( textDimension.height >> 1 ); } unsigned int n; while(*text) { n = getGlyphByChar(*text); if ( n > 0) { int imgw = Glyphs[n-1].imgw; int imgh = Glyphs[n-1].imgh; int texw = Glyphs[n-1].texw; int texh = Glyphs[n-1].texh; int offx = Glyphs[n-1].left; int offy = Glyphs[n-1].size - Glyphs[n-1].top; spr->SetTexture( Glyphs[n-1].tex ); spr->SetTextureRect