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#1 2008-06-28 22:37:33

grillo
Member

256 char GRRLIB_Printf function

This is a replacement for the function GRRLIB_DrawChar and GRRLIB_Printf that I made this morning modifiing the original functions a little, i have tested it and works fine.

For this to work you need to use this fonts (actualy they are the old fonts from GRRLIB, but modified to work with this) -> http://www.filedropper.com/fonts_3
(this is not compatible with the font that comes with GRRLIB 3.0.1a though)

I also included Crayon's Improvement ;D

font*.c comes with the width and height of the fonts... it should work the same way as it did in the older versions of GRRLIB

GRRLIB.c

Code:

inline void GRRLIB_DrawChar(f32 xpos, f32 ypos, u16 width, u16 height, u8 data[], float degrees, float scaleX, f32 scaleY, u8 frame, GXColor c ){
GXTexObj texObj;
f32 s1= ((frame    %16))    /16.0;
f32 s2= ((frame    %16)+1)    /16.0;
f32 t1= ((frame    /16))    /16.0;
f32 t2= ((frame    /16)+1)    /16.0;
    
    GX_InitTexObj(&texObj, data, width*16,height*16, GX_TF_RGBA8,GX_CLAMP, GX_CLAMP,GX_FALSE);
    GX_InitTexObjLOD(&texObj, GX_NEAR, GX_NEAR, 0.0f, 0.0f, 0.0f, 0, 0, GX_ANISO_1);
    GX_LoadTexObj(&texObj, GX_TEXMAP0);

    GX_SetTevOp (GX_TEVSTAGE0, GX_MODULATE);
      GX_SetVtxDesc (GX_VA_TEX0, GX_DIRECT);

    Mtx m,m1,m2,mv;
    width *=.5;
    height*=.5;

    guMtxIdentity (m1);
    guMtxScaleApply(m1,m1,scaleX,scaleY,1.0);
    Vector axis =(Vector) {0,0,1};
    guMtxRotAxisDeg (m2, &axis, degrees);
    guMtxConcat(m2,m1,m);
    guMtxTransApply(m,m, xpos+width,ypos+height,0);
    guMtxConcat (GXmodelView2D, m, mv);
    GX_LoadPosMtxImm (mv, GX_PNMTX0);

    GX_Begin(GX_QUADS, GX_VTXFMT0,4);

          GX_Position3f32(-width, -height,  0);
          GX_Color4u8(c.r,c.g,c.b,c.a);
          GX_TexCoord2f32(s1, t1);

          GX_Position3f32(width, -height,  0);
         GX_Color4u8(c.r,c.g,c.b,c.a);
          GX_TexCoord2f32(s2, t1);

          GX_Position3f32(width, height,  0);
        GX_Color4u8(c.r,c.g,c.b,c.a);
          GX_TexCoord2f32(s2, t2);

          GX_Position3f32(-width, height,  0);
        GX_Color4u8(c.r,c.g,c.b,c.a);
          GX_TexCoord2f32(s1, t2);

    GX_End();

    GX_LoadPosMtxImm (GXmodelView2D, GX_PNMTX0);
    GX_SetTevOp (GX_TEVSTAGE0, GX_PASSCLR);
      GX_SetVtxDesc (GX_VA_TEX0, GX_NONE);
}



void GRRLIB_Printf(f32 xpos, f32 ypos, u8 font[],u16 font_width ,u16 font_height , u32 color, f32 zoom, char *text,...){
    int i,size=0;
    char tmp[1024];

    va_list argp;
    va_start(argp, text);
    size = vsprintf(tmp, text, argp);
    va_end(argp);

    GXColor col = GRRLIB_Splitu32(color);
    for(i=0;i<size;i++){
        u8 c = tmp[i];
        GRRLIB_DrawChar(xpos+i * font_width * zoom, ypos, font_width, font_height, font, 0, zoom, zoom, c, col );
    }
}

GRRLIB.h

Code:

inline void GRRLIB_DrawChar(f32 xpos, f32 ypos, u16 width, u16 height, u8 data[], float degrees, float scaleX, f32 scaleY, u8 frame, GXColor c );
void GRRLIB_Printf(f32 xpos, f32 ypos, u8 font[],u16 font_width ,u16 font_height , u32 color, f32 zoom, char *text,...);

[EDIT]

Modified to align fonts to support ASCII positioning (upper left == char 0, upper right char == 15, lower right == char 255 ) and added libosk font (i think it was made by _patch, but not sure)

Last edited by grillo (2008-07-04 19:20:59)

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#2 2008-07-04 19:33:31

grillo
Member

Re: 256 char GRRLIB_Printf function

fixed a little bug while trying to call GRRLIB_DrawChar alone to draw a char (not that i know that someone uses it raw, but it's better this way), the font format changed though tongue

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#3 2008-08-07 15:56:49

DarkChris
Member

Re: 256 char GRRLIB_Printf function

Can you tell me how to use it please. No font works with it.

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#4 2008-08-07 17:50:43

RedShade
Member

Re: 256 char GRRLIB_Printf function

Code:

f32 s1= (frame>>4) & 0x0F ;
f32 s2= ((frame>>4)& 0x0F)+1;
f32 t1=frame & 0x0F ;
f32 t2= (frame & 0x0F)+1 ;

Update: this will do the auto scaling, regardless of texture size as long as it is 16x16 tiles (and if you want different numbers, I think you can see what value you change there ;-) )

Code:

  Mtx texMtx;
  guMtxScale(texMtx,1.0/16.0,1.0/16.0,1.0);
  GX_LoadTexMtxImm(texMtx,GX_TEXMTX0,GX_MTX3x4);

set this where ever you want to draw the font:

Code:

  GX_SetTexCoordGen(GX_TEXCOORD0,GX_TG_MTX3x4, GX_TG_TEX0, GX_TEXMTX0);

and to turn back, change it back to identity

Code:

  GX_SetTexCoordGen(GX_TEXCOORD0,GX_TG_MTX3x4, GX_TG_TEX0, GX_IDENTITY);

Last edited by RedShade (2008-08-08 08:15:34)

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#5 2008-08-09 15:28:14

DarkChris
Member

Re: 256 char GRRLIB_Printf function

Can somebody make an example please... My homebrew is near release but all the printf-Functions are not working yet...

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#6 2008-08-10 01:50:09

grillo
Member

Re: 256 char GRRLIB_Printf function

if you followed the instructions, it should be enough to call
   

Code:

GRRLIB_Printf(
    50,50,                                //Position
    tex_font8,font8_char_width,font8_char_high,    //Font Data (you must include font8.h that comes in the font pack
    0xFFFFFFFF,                            //Font Color
    4,                                    //Font Size x 4
    "I love Writing Text ñañañaña %d",32);        //The Text ;D

that should write the text in the buffer at position 50,50

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#7 2008-08-10 01:53:56

DarkChris
Member

Re: 256 char GRRLIB_Printf function

There is no font8.h in your package. That's the problem. And my own Fonts don't work.
I have an idea... Doesn't it work with GRRLib Converter?

Last edited by DarkChris (2008-08-10 01:55:32)

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#8 2008-08-10 02:01:43

grillo
Member

Re: 256 char GRRLIB_Printf function

http://www.filedropper.com/fonts_3 << tried downloading this font pack???

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#9 2008-08-10 02:22:57

DarkChris
Member

Re: 256 char GRRLIB_Printf function

Yes but there were only some normal ttf's and other normal font types. Not only one single *.h oder *.c. And converting them doesn't work, too.
I think you uploaded a wrong RAR-File or this is the wrong link.

Last edited by DarkChris (2008-08-10 02:25:36)

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#10 2008-08-10 05:15:58

grillo
Member

Re: 256 char GRRLIB_Printf function

you're right. the hosting site expired the file and overwrote the link, here is the right zip

http://www.mediafire.com/?sharekey=199b … b9a8902bda

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#11 2008-08-10 12:30:00

DarkChris
Member

Re: 256 char GRRLIB_Printf function

Thank you wink
I hope it works. I'll try it later.

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#12 2008-08-14 23:52:56

nores
Member

Re: 256 char GRRLIB_Printf function

Hi,

I'm spanish and i'm making a game. I have to show letters like ñ, ¿  and á é í ...

So i tried this metod, but i wasn't able to make it work.

Can you upload a working example, with lib modified, and all files included? It would help me a lot.

I hope you can help me.

p.s. excuse me for my bad english smile

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