[ft] Fw: example Re: Fw: outline points

[Werner LEMBERG]

Pankracy, please write to the list for further help!


    Werner

> --- Begin Message ---
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>
> Subject: 
>
> example Re: [ft] Fw: outline points
>
>
>
>
> Date: 
>
> Mon, 24 Dec 2012 11:35:26 +0100
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>
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> User-agent: 
>
> Thunderbird 2.0.0.24 (X11/20100623)
>
>
>
>
> Tell me where i can put callback or what I can read all points on path
> outline?
>
> pp: pp.c
>         gcc `freetype-config --cflags --libs` -o pp -lm pp.c
>         pp > gg.pgm
>
> #include <stdio.h>
> #include <string.h>
> #include <math.h>
>
> #include <ft2build.h>
> #include FT_FREETYPE_H
>
> void drukuj_grafike(unsigned char *image, int maxx, int maxy )
> {
>   int  i, j,k;
>
>   k=0;
>   for ( i = 0; i < maxx; i++ )
>   {
>     for ( j = 0; j < maxy; j++ )
>       {
>       putchar( (short)(255-image[k]) );
>       k++;
>       };
>   }
> };
>
> int main( int argc, char**  argv )
> {
>   FT_Error      error;
>   FT_Library    library;
>   FT_UInt ipu;
>   FT_Int  ico;
>   FT_Outline obwiednia;
>
>   error = FT_Init_FreeType( &library );
>
>   const int width = 300;
>   const int rows  = 200;
>   ipu=33;
>   ico=2;
>   FT_Outline_New(library,ipu,ico, &obwiednia);
>   obwiednia.flags=FT_OUTLINE_NONE;
>   obwiednia.n_contours=ico;
>   obwiednia.n_points=ipu;
>   FT_Vector pp[33];
>   char 
> tt[33]={0,0,0,1,1,1,0,1,1,1,1,1,1,0,1,1,0,1,1,1,1,0,1,0,0,1,1,0,1,1,1,0,0};
>   short cc[2]={21,32};
>   obwiednia.tags=tt;
>   obwiednia.contours=cc;
> pp[0].x=522; pp[0].y=596; pp[1].x=522; pp[1].y=406;
> pp[2].x=396; pp[2].y=301; pp[3].x=292; pp[3].y=301;
> pp[4].x=214; pp[4].y=301; pp[5].x=214; pp[5].y=168;
> pp[6].x=214; pp[6].y=97;  pp[7].x=226; pp[7].y=28;
> pp[8].x=292; pp[8].y=28;  pp[9].x=292; pp[9].y=0;
> pp[10].x=26; pp[10].y=0;  pp[11].x=26; pp[11].y=28;
> pp[12].x=92; pp[12].y=28; pp[13].x=104; pp[13].y=97;
> pp[14].x=104; pp[14].y=168; pp[15].x=104; pp[15].y=532;
> pp[16].x=104; pp[16].y=603; pp[17].x=92; pp[17].y=672;
> pp[18].x=26; pp[18].y=672;  pp[19].x=26; pp[19].y=700;
> pp[20].x=292; pp[20].y=700; pp[21].x=396; pp[21].y=700;
> pp[22].x=416; pp[22].y=501; pp[23].x=416; pp[23].y=578;
> pp[24].x=345; pp[24].y=672; pp[25].x=278; pp[25].y=672;
> pp[26].x=226; pp[26].y=672; pp[27].x=214; pp[27].y=603;
> pp[28].x=214; pp[28].y=532; pp[29].x=214; pp[29].y=329;
> pp[30].x=278; pp[30].y=329; pp[31].x=345; pp[31].y=329;
> pp[32].x=416; pp[32].y=423;
> obwiednia.points=pp;
>
> int i;
> for(i=0;i<ipu;i++)
>   {
>   pp[i].x+=200;  pp[i].y+=50;
>   pp[i].x*=16;  pp[i].y*=16;
>   };
>
>   FT_Bitmap bmp;
>   FT_Raster_Params params;
>   const int pitch_gray = (width + 3) & -4;  // 8 bits per pixel; must be a 
> multiple of four.
>
>   unsigned char bb[rows * pitch_gray];
>   bmp.buffer = bb;
>   memset(bmp.buffer, 0, rows * pitch_gray);
>   bmp.width = width;
>   bmp.rows = rows;
>   bmp.pitch = pitch_gray;
>   bmp.pixel_mode = FT_PIXEL_MODE_GRAY;
>   bmp.num_grays = 16;
>
>   // Set up the necessary raster parameters.
>   memset(&params, 0, sizeof (params));
>   params.source = &obwiednia;
>   params.target = &bmp;
>   params.flags = FT_RASTER_FLAG_AA;
>
>   FT_Outline_Get_Bitmap(library, &obwiednia,&bmp);
>
>   printf("P5 %d %d 255\n",width,rows);
>   drukuj_grafike((unsigned char *)bmp.buffer,(int)rows,(int)width);
>
>   FT_Outline_Done(library, &obwiednia);
>   FT_Done_FreeType( library );
>   return 0;
> }
>
> --- End Message ---