65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <3ds.h>
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#include "text.h"
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#include "font.h"
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//this code is not meant to be readable
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int drawCharacter(u8* fb, font_s* f, char c, s16 x, s16 y, u16 w, u16 h)
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{
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charDesc_s* cd=&f->desc[(int)c];
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if(!cd->data)return 0;
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x+=cd->xo; y+=f->height-cd->yo-cd->h;
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if(x<0 || x+cd->w>=w || y<-cd->h || y>=h+cd->h)return 0;
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u8* charData=cd->data;
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int i, j;
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s16 cy=y, ch=cd->h, cyo=0;
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if(y<0){cy=0;cyo=-y;ch=cd->h-cyo;}
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else if(y+ch>h)ch=h-y;
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fb+=(x*h+cy)*3;
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const u8 r=f->color[0], g=f->color[1], b=f->color[2];
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for(i=0;i<cd->w;i++)
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{
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charData+=cyo;
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for(j=0;j<ch;j++)
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{
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u8 v=*(charData++);
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if(v)
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{
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fb[0]=(fb[0]*(0xFF-v)+(b*v))>>8;
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fb[1]=(fb[1]*(0xFF-v)+(g*v))>>8;
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fb[2]=(fb[2]*(0xFF-v)+(r*v))>>8;
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}
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fb+=3;
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}
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charData+=(cd->h-(cyo+ch));
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fb+=(h-ch)*3;
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}
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return cd->xa;
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}
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void drawString(u8* fb, font_s* f, char* str, s16 x, s16 y, u16 w, u16 h)
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{
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if(!f || !fb || !str)return;
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int k; int dx=0, dy=0;
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int length=strlen(str);
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for(k=0;k<length;k++)
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{
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dx+=drawCharacter(fb,f,str[k],x+dx,y+dy,w,h);
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if(str[k]=='\n'){dx=0;dy-=f->height;}
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}
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}
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void gfxDrawText(gfxScreen_t screen, gfx3dSide_t side, font_s* f, char* str, s16 x, s16 y)
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{
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if(!str)return;
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if(!f)f=&fontDefault;
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u16 fbWidth, fbHeight;
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u8* fbAdr=gfxGetFramebuffer(screen, side, &fbWidth, &fbHeight);
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drawString(fbAdr, f, str, y, x, fbHeight, fbWidth);
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}
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