forked from KolibriOS/kolibrios
302 lines
7.6 KiB
C
302 lines
7.6 KiB
C
// Сам шрифт представляет.
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// Голова:
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// [2 байта символы:KF]
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// [4 байта:указатель на название шрифта]
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// [1 байт:размер массива указателей на размеры шрифтов, указатель 4 байта, т.е. размер = размер массива*4]
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// [размер массива*4 байт:указатели..]
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// Тело файла:
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// [4 байта:масштаб ширина][4 байта:масштаб высота][255*4 байт:указатели на символы][масштаб ширина*масштаб высота байт: данные символов..]
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// Конец:
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// [Название шрифта:"Times New Roman"]
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#ifndef INCLUDE_KFONT_H
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#define INCLUDE_KFONT_H
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#ifndef INCLUDE_MATH_H
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#include "../lib/math.h"
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#endif
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#ifndef INCLUDE_IO_H
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#include "../lib/fs.h"
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#endif
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#include "../lib/patterns/rgb.h"
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#define DEFAULT_FONT "/sys/fonts/Tahoma.kf"
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#define KFONT_BPP 4
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int kfont_char_width[255];
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:struct __SIZE
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{
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dword width,height;
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signed offset_x, offset_y;
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byte pt;
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};
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:struct KFONT
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{
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__SIZE size;
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int width,height;
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byte bold,smooth;
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dword color, background;
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dword font,font_begin;
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word block;
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dword raw;
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dword raw_size;
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bool init();
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bool changeSIZE();
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byte symbol();
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byte symbol_size();
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dword getsize();
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int get_label_width();
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void ApplySmooth();
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int WriteIntoWindow();
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int WriteIntoWindowCenter();
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dword WriteIntoBuffer();
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void ShowBuffer();
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void ShowBufferPart();
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} kfont;
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:bool KFONT::init(dword font_path)
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{
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dword fsize_notused;
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if(font)free(font);
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read_file(font_path, #font_begin, #fsize_notused);
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if(!EAX) {
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RunProgram("/sys/@notify", "'Error: KFONT is not loaded.' -E");
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return false;
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}
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changeSIZE();
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smooth = true;
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return true;
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}
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:bool KFONT::changeSIZE()
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{
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int i;
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dword file_size;
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dword ofs;
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if(size.pt<9) size.pt = 9;
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font = font_begin;
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ofs = DSDWORD[calc(size.pt-8<<2+font_begin)];
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if(ofs==-1)return false;
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font += ofs + 156;
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file_size = DSDWORD[calc(font)];
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height = DSBYTE[calc(font+file_size) - 1];
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width = DSBYTE[calc(font+file_size) - 2];
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block = math.ceil(height*width/32);
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for (i=0; i<256; i++) {
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kfont_char_width[i] = symbol_size((byte) i);
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}
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return true;
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}
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:dword KFONT::getsize(byte font_size, dword text1)
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{
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size.height = size.width = 0;
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size.offset_x = size.offset_y = -1;
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if (size.pt != font_size) {
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size.pt = font_size;
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if(!changeSIZE())return 0;
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}
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WHILE(DSBYTE[text1])
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{
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size.width += symbol_size(DSBYTE[text1]);
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text1++;
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}
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$neg size.offset_y
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$neg size.offset_x
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size.height += size.offset_y+1;
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size.width += size.offset_x+1;
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return size.width;
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}
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//WILL NOT WORK if requested font_size
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//is differ from precalculated kfont_char_width[]
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:int KFONT::get_label_width(dword _label)
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{
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int len=0;
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while (ESBYTE[_label]) {
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len += kfont_char_width[ ESBYTE[_label] ];
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_label++;
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}
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return len;
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}
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:byte KFONT::symbol_size(byte s)
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{
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int chaw_width;
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chaw_width = symbol(0,0, s, 0);
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if(bold) chaw_width += math.ceil(size.pt/17);
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return chaw_width;
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}
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:byte KFONT::symbol(signed x,y; byte s; dword image_raw)
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{
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dword xi,yi;
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dword iii = 0;
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dword offs;
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dword tmp, _;
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byte X;
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byte chaw_width=0;
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if(s==32)return width/4+1;
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if(s==9)return width;
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s = Cp866ToAnsi(s);
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tmp = block*s << 2 + font;
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for(yi=0; yi<height; yi++)
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{
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EDI = size.offset_y + yi + y * size.width * KFONT_BPP + image_raw;
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for(xi=0; xi<width; xi++)
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{
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if(iii%32) _ >>= 1;
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else
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{
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tmp += 4;
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_ = DSDWORD[tmp];
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}
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if(_&1) //check does the pixel set
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{
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if(xi>chaw_width)chaw_width=xi;
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//in case of image_raw!=0 draw font into bug
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//in case of image_raw==0 calculate size
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if (image_raw)
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{
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offs = x + xi * KFONT_BPP + EDI;
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DSDWORD[offs] = color;
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if(bold) DSDWORD[offs+KFONT_BPP] = color;
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}
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else
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{
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if(size.height<yi)size.height = yi;
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if(size.offset_y<0)size.offset_y = yi; else if(yi<size.offset_y)size.offset_y = yi;
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if(!X) X = xi; else if(X>xi)X = xi;
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if(size.offset_x<0)size.offset_x = X;
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}
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}
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iii++;
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}
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}
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return chaw_width;
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}
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inline fastcall Cp866ToAnsi(AL) {
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if (AL>=128)&&(AL<=175) return AL+64;
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if (AL>=224)&&(AL<=239) return AL+16;
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if (AL==241) return 184; //e ruAL with dotAL (yo)
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if (AL==240) return 168; //E ruAL with dotAL (yo)
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if (AL==242) return 'E'; //E ukr (ye)
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if (AL==243) return 186; //e ukr (ye)
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if (AL==244) return 'I'; //I ukr (yi)
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if (AL==245) return 191; //i ukr (yi)
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return AL;
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}
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/*=====================================================================================
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=========================== ===========================
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=========================== RAW ===========================
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=========================== ===========================
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=====================================================================================*/
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inline fastcall dword b32(EAX) { return DSDWORD[EAX]; }
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:void KFONT::ApplySmooth()
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{
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dword i,line_w,to,dark_background;
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line_w = size.width * KFONT_BPP;
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to = size.height - 1 * line_w + raw - KFONT_BPP;
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for(i=raw; i < to; i+=KFONT_BPP)
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{
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if(i-raw%line_w +KFONT_BPP == line_w) continue;
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// pixels position, where b - black, w - write
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// bw
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// wb
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if(b32(i)!=background) {
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if (b32(i+KFONT_BPP)==background)
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&& (b32(i+line_w)==background) && (b32(i+KFONT_BPP+line_w)!=background)
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{
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dark_background = MixColors(background,b32(i),200);
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DSDWORD[i+KFONT_BPP] = dark_background;
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DSDWORD[i+line_w] = dark_background;
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}
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}
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// wb
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// bw
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else if (b32(i+KFONT_BPP)!=background)
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&& (b32(i+line_w)!=background) && (b32(i+KFONT_BPP+line_w)==background)
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{
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dark_background = MixColors(background,b32(i+KFONT_BPP),200);
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DSDWORD[i] = dark_background;
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DSDWORD[i+KFONT_BPP+line_w] = dark_background;
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}
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}
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}
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:dword KFONT::WriteIntoBuffer(int x,y,w,h; dword _background, _color; byte font_size; dword text1)
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{
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dword new_raw_size;
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if(!text1)return;
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if (size.pt != font_size) {
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getsize(font_size, text1);
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y -= size.offset_y;
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}
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color = _color;
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background = _background;
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size.width = w;
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size.height = h;
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new_raw_size = w*h*KFONT_BPP;
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if(raw_size != new_raw_size)
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{
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raw_size = new_raw_size;
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free(raw);
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raw = malloc(raw_size);
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// Fill background color
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EBX = background;
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EAX = raw_size+raw;
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for (EDI=raw; EDI<EAX; EDI+=KFONT_BPP) ESDWORD[EDI] = EBX;
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}
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WHILE(DSBYTE[text1])
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{
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x+=symbol(x,y,DSBYTE[text1], raw);
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if(bold)x+=math.ceil(size.pt/17);
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text1++;
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}
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return x;
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}
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:int KFONT::WriteIntoWindow(int x,y; dword _background, _color; byte font_size; dword text1)
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{
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if(!text1)return 0;
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getsize(font_size, text1);
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raw_size = NULL;
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WriteIntoBuffer(0, -size.offset_y, size.width-size.offset_x,
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size.height-size.offset_y, _background, _color, font_size, text1);
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if (smooth) ApplySmooth();
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ShowBuffer(x,y);
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return size.offset_x + size.width;
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}
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:int KFONT::WriteIntoWindowCenter(dword x, _y,w,h, _background, _color; byte font_size; dword text1)
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{
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getsize(font_size, text1);
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return WriteIntoWindow(w-size.width/2+x-1, _y, _background, _color, font_size, text1);
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}
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:void KFONT::ShowBuffer(dword _x, _y)
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{
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PutPaletteImage(raw, size.width, size.height, _x, _y, 32, 0);
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}
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:void KFONT::ShowBufferPart(dword _x, _y, _w, _h, _buf_offset)
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{
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PutPaletteImage(_buf_offset * KFONT_BPP + raw, _w, _h, _x, _y, 32, 0);
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}
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#endif |