// ////////////////////////////////////////////////////////////////////////// //
// cursor (hi, Death Track!)
const curWidth = 17;
const curHeight = 23;

const cursorImg: array[0..curWidth*curHeight-1] of Byte = (
  0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,3,2,0,0,0,0,0,0,0,0,0,0,0,0,0,
  1,0,3,2,2,0,0,0,0,0,0,0,0,0,0,0,0,
  1,1,3,3,2,2,0,0,0,0,0,0,0,0,0,0,0,
  1,1,3,3,4,2,2,0,0,0,0,0,0,0,0,0,0,
  1,1,3,3,4,4,2,2,0,0,0,0,0,0,0,0,0,
  1,1,3,3,4,4,4,2,2,0,0,0,0,0,0,0,0,
  1,1,3,3,4,4,4,4,2,2,0,0,0,0,0,0,0,
  1,1,3,3,4,4,4,5,6,2,2,0,0,0,0,0,0,
  1,1,3,3,4,4,5,6,7,5,2,2,0,0,0,0,0,
  1,1,3,3,4,5,6,7,5,4,5,2,2,0,0,0,0,
  1,1,3,3,5,6,7,5,4,5,6,7,2,2,0,0,0,
  1,1,3,3,6,7,5,4,5,6,7,7,7,2,2,0,0,
  1,1,3,3,7,5,4,5,6,7,7,7,7,7,2,2,0,
  1,1,3,3,5,4,5,6,8,8,8,8,8,8,8,8,2,
  1,1,3,3,4,5,6,3,8,8,8,8,8,8,8,8,8,
  1,1,3,3,5,6,3,3,1,1,1,1,1,1,1,0,0,
  1,1,3,3,6,3,3,1,1,1,1,1,1,1,1,0,0,
  1,1,3,3,3,3,0,0,0,0,0,0,0,0,0,0,0,
  1,1,3,3,3,0,0,0,0,0,0,0,0,0,0,0,0,
  1,1,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,
  1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
);
const cursorPal: array[0..9*4-1] of Byte = (
    0,  0,  0,  0,
    0,  0,  0,163,
   85,255,255,255,
   85, 85,255,255,
  255, 85, 85,255,
  170,  0,170,255,
   85, 85, 85,255,
    0,  0,  0,255,
    0,  0,170,255
);


var
  curtexid: GLuint = 0;

procedure createCursorTexture ();
var
  tex, tpp: PByte;
  c: Integer;
  x, y: Integer;
begin
  if (curtexid <> 0) then exit; //begin glDeleteTextures(1, @curtexid); curtexid := 0; end;

  GetMem(tex, curWidth*curHeight*4);

  tpp := tex;
  for y := 0 to curHeight-1 do
  begin
    for x := 0 to curWidth-1 do
    begin
      c := cursorImg[y*curWidth+x]*4;
      tpp^ := cursorPal[c+0]; Inc(tpp);
      tpp^ := cursorPal[c+1]; Inc(tpp);
      tpp^ := cursorPal[c+2]; Inc(tpp);
      tpp^ := cursorPal[c+3]; Inc(tpp);
    end;
  end;

  glGenTextures(1, @curtexid);
  if (curtexid = 0) then raise Exception.Create('can''t create Holmes texture');

  glBindTexture(GL_TEXTURE_2D, curtexid);
  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

  //GLfloat[4] bclr = 0.0;
  //glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, bclr.ptr);

  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, curWidth, curHeight, 0, GL_RGBA{gltt}, GL_UNSIGNED_BYTE, tex);
  glFlush();

  //FreeMem(tex);
end;


procedure drawCursor ();
begin
  if (curtexid = 0) then createCursorTexture() else glBindTexture(GL_TEXTURE_2D, curtexid);
  // blend it
  glEnable(GL_BLEND);
  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
  glEnable(GL_TEXTURE_2D);
  // color and opacity
  glColor4f(1, 1, 1, 0.9);
  Dec(msX, 2);
  glBegin(GL_QUADS);
    glTexCoord2f(0.0, 0.0); glVertex2i(msX, msY); // top-left
    glTexCoord2f(1.0, 0.0); glVertex2i(msX+curWidth, msY); // top-right
    glTexCoord2f(1.0, 1.0); glVertex2i(msX+curWidth, msY+curHeight); // bottom-right
    glTexCoord2f(0.0, 1.0); glVertex2i(msX, msY+curHeight); // bottom-left
  glEnd();
  Inc(msX, 2);
  glDisable(GL_BLEND);
  glDisable(GL_TEXTURE_2D);
  glColor4f(1, 1, 1, 1);
  glBindTexture(GL_TEXTURE_2D, 0);
end;


// ////////////////////////////////////////////////////////////////////////// //
// fonts
const kgiFont6: array[0..256*8-1] of Byte  = (
$00,$00,$00,$00,$00,$00,$00,$00,$3c,$42,$a5,$81,$a5,$99,$42,$3c,$3c,$7e,$db,$ff,$ff,$db,$66,$3c,$6c,$fe,
$fe,$fe,$7c,$38,$10,$00,$10,$38,$7c,$fe,$7c,$38,$10,$00,$10,$38,$54,$fe,$54,$10,$38,$00,$10,$38,$7c,$fe,
$fe,$10,$38,$00,$00,$00,$00,$30,$30,$00,$00,$00,$ff,$ff,$ff,$e7,$e7,$ff,$ff,$ff,$38,$44,$82,$82,$82,$44,
$38,$00,$c7,$bb,$7d,$7d,$7d,$bb,$c7,$ff,$0f,$03,$05,$79,$88,$88,$88,$70,$38,$44,$44,$44,$38,$10,$7c,$10,
$30,$28,$24,$24,$28,$20,$e0,$c0,$3c,$24,$3c,$24,$24,$e4,$dc,$18,$10,$54,$38,$ee,$38,$54,$10,$00,$10,$10,
$10,$7c,$10,$10,$10,$10,$10,$10,$10,$ff,$00,$00,$00,$00,$00,$00,$00,$ff,$10,$10,$10,$10,$10,$10,$10,$f0,
$10,$10,$10,$10,$10,$10,$10,$1f,$10,$10,$10,$10,$10,$10,$10,$ff,$10,$10,$10,$10,$10,$10,$10,$10,$10,$10,
$10,$10,$00,$00,$00,$ff,$00,$00,$00,$00,$00,$00,$00,$1f,$10,$10,$10,$10,$00,$00,$00,$f0,$10,$10,$10,$10,
$10,$10,$10,$1f,$00,$00,$00,$00,$10,$10,$10,$f0,$00,$00,$00,$00,$81,$42,$24,$18,$18,$24,$42,$81,$01,$02,
$04,$08,$10,$20,$40,$80,$80,$40,$20,$10,$08,$04,$02,$01,$00,$10,$10,$ff,$10,$10,$00,$00,$00,$00,$00,$00,
$00,$00,$00,$00,$20,$20,$20,$20,$00,$00,$20,$00,$50,$50,$50,$00,$00,$00,$00,$00,$50,$50,$f8,$50,$f8,$50,
$50,$00,$20,$78,$a0,$70,$28,$f0,$20,$00,$c0,$c8,$10,$20,$40,$98,$18,$00,$40,$a0,$40,$a8,$90,$98,$60,$00,
$10,$20,$40,$00,$00,$00,$00,$00,$10,$20,$40,$40,$40,$20,$10,$00,$40,$20,$10,$10,$10,$20,$40,$00,$88,$50,
$20,$f8,$20,$50,$88,$00,$00,$20,$20,$f8,$20,$20,$00,$00,$00,$00,$00,$00,$00,$20,$20,$40,$00,$00,$00,$78,
$00,$00,$00,$00,$00,$00,$00,$00,$00,$60,$60,$00,$00,$00,$08,$10,$20,$40,$80,$00,$70,$88,$98,$a8,$c8,$88,
$70,$00,$20,$60,$a0,$20,$20,$20,$f8,$00,$70,$88,$08,$10,$60,$80,$f8,$00,$70,$88,$08,$30,$08,$88,$70,$00,
$10,$30,$50,$90,$f8,$10,$10,$00,$f8,$80,$e0,$10,$08,$10,$e0,$00,$30,$40,$80,$f0,$88,$88,$70,$00,$f8,$88,
$10,$20,$20,$20,$20,$00,$70,$88,$88,$70,$88,$88,$70,$00,$70,$88,$88,$78,$08,$10,$60,$00,$00,$00,$20,$00,
$00,$20,$00,$00,$00,$00,$20,$00,$00,$20,$20,$40,$18,$30,$60,$c0,$60,$30,$18,$00,$00,$00,$f8,$00,$f8,$00,
$00,$00,$c0,$60,$30,$18,$30,$60,$c0,$00,$70,$88,$08,$10,$20,$00,$20,$00,$70,$88,$08,$68,$a8,$a8,$70,$00,
$20,$50,$88,$88,$f8,$88,$88,$00,$f0,$48,$48,$70,$48,$48,$f0,$00,$30,$48,$80,$80,$80,$48,$30,$00,$e0,$50,
$48,$48,$48,$50,$e0,$00,$f8,$80,$80,$f0,$80,$80,$f8,$00,$f8,$80,$80,$f0,$80,$80,$80,$00,$70,$88,$80,$b8,
$88,$88,$70,$00,$88,$88,$88,$f8,$88,$88,$88,$00,$70,$20,$20,$20,$20,$20,$70,$00,$38,$10,$10,$10,$90,$90,
$60,$00,$88,$90,$a0,$c0,$a0,$90,$88,$00,$80,$80,$80,$80,$80,$80,$f8,$00,$88,$d8,$a8,$a8,$88,$88,$88,$00,
$88,$c8,$c8,$a8,$98,$98,$88,$00,$70,$88,$88,$88,$88,$88,$70,$00,$f0,$88,$88,$f0,$80,$80,$80,$00,$70,$88,
$88,$88,$a8,$90,$68,$00,$f0,$88,$88,$f0,$a0,$90,$88,$00,$70,$88,$80,$70,$08,$88,$70,$00,$f8,$20,$20,$20,
$20,$20,$20,$00,$88,$88,$88,$88,$88,$88,$70,$00,$88,$88,$88,$88,$50,$50,$20,$00,$88,$88,$88,$a8,$a8,$d8,
$88,$00,$88,$88,$50,$20,$50,$88,$88,$00,$88,$88,$88,$70,$20,$20,$20,$00,$f8,$08,$10,$20,$40,$80,$f8,$00,
$70,$40,$40,$40,$40,$40,$70,$00,$00,$00,$80,$40,$20,$10,$08,$00,$70,$10,$10,$10,$10,$10,$70,$00,$20,$50,
$88,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$f8,$00,$40,$20,$10,$00,$00,$00,$00,$00,$00,$00,$70,$08,
$78,$88,$78,$00,$80,$80,$b0,$c8,$88,$c8,$b0,$00,$00,$00,$70,$88,$80,$88,$70,$00,$08,$08,$68,$98,$88,$98,
$68,$00,$00,$00,$70,$88,$f8,$80,$70,$00,$10,$28,$20,$f8,$20,$20,$20,$00,$00,$00,$68,$98,$98,$68,$08,$70,
$80,$80,$f0,$88,$88,$88,$88,$00,$20,$00,$60,$20,$20,$20,$70,$00,$10,$00,$30,$10,$10,$10,$90,$60,$40,$40,
$48,$50,$60,$50,$48,$00,$60,$20,$20,$20,$20,$20,$70,$00,$00,$00,$d0,$a8,$a8,$a8,$a8,$00,$00,$00,$b0,$c8,
$88,$88,$88,$00,$00,$00,$70,$88,$88,$88,$70,$00,$00,$00,$b0,$c8,$c8,$b0,$80,$80,$00,$00,$68,$98,$98,$68,
$08,$08,$00,$00,$b0,$c8,$80,$80,$80,$00,$00,$00,$78,$80,$f0,$08,$f0,$00,$40,$40,$f0,$40,$40,$48,$30,$00,
$00,$00,$90,$90,$90,$90,$68,$00,$00,$00,$88,$88,$88,$50,$20,$00,$00,$00,$88,$a8,$a8,$a8,$50,$00,$00,$00,
$88,$50,$20,$50,$88,$00,$00,$00,$88,$88,$98,$68,$08,$70,$00,$00,$f8,$10,$20,$40,$f8,$00,$18,$20,$20,$40,
$20,$20,$18,$00,$20,$20,$20,$00,$20,$20,$20,$00,$c0,$20,$20,$10,$20,$20,$c0,$00,$40,$a8,$10,$00,$00,$00,
$00,$00,$00,$00,$20,$50,$f8,$00,$00,$00,$00,$00,$00,$00,$00,$00,$ff,$ff,$f0,$f0,$f0,$f0,$0f,$0f,$0f,$0f,
$00,$00,$ff,$ff,$ff,$ff,$ff,$ff,$ff,$ff,$00,$00,$00,$00,$00,$00,$00,$00,$00,$3c,$3c,$00,$00,$00,$ff,$ff,
$ff,$ff,$ff,$ff,$00,$00,$c0,$c0,$c0,$c0,$c0,$c0,$c0,$c0,$0f,$0f,$0f,$0f,$f0,$f0,$f0,$f0,$fc,$fc,$fc,$fc,
$fc,$fc,$fc,$fc,$03,$03,$03,$03,$03,$03,$03,$03,$3f,$3f,$3f,$3f,$3f,$3f,$3f,$3f,$11,$22,$44,$88,$11,$22,
$44,$88,$88,$44,$22,$11,$88,$44,$22,$11,$fe,$7c,$38,$10,$00,$00,$00,$00,$00,$00,$00,$00,$10,$38,$7c,$fe,
$80,$c0,$e0,$f0,$e0,$c0,$80,$00,$01,$03,$07,$0f,$07,$03,$01,$00,$ff,$7e,$3c,$18,$18,$3c,$7e,$ff,$81,$c3,
$e7,$ff,$ff,$e7,$c3,$81,$f0,$f0,$f0,$f0,$00,$00,$00,$00,$00,$00,$00,$00,$0f,$0f,$0f,$0f,$0f,$0f,$0f,$0f,
$00,$00,$00,$00,$00,$00,$00,$00,$f0,$f0,$f0,$f0,$33,$33,$cc,$cc,$33,$33,$cc,$cc,$00,$20,$20,$50,$50,$88,
$f8,$00,$20,$20,$70,$20,$70,$20,$20,$00,$00,$00,$00,$50,$88,$a8,$50,$00,$ff,$ff,$ff,$ff,$ff,$ff,$ff,$ff,
$00,$00,$00,$00,$ff,$ff,$ff,$ff,$f0,$f0,$f0,$f0,$f0,$f0,$f0,$f0,$0f,$0f,$0f,$0f,$0f,$0f,$0f,$0f,$ff,$ff,
$ff,$ff,$00,$00,$00,$00,$00,$00,$68,$90,$90,$90,$68,$00,$30,$48,$48,$70,$48,$48,$70,$c0,$f8,$88,$80,$80,
$80,$80,$80,$00,$00,$50,$70,$88,$f8,$80,$70,$00,$00,$00,$78,$80,$f0,$80,$78,$00,$00,$00,$78,$90,$90,$90,
$60,$00,$20,$00,$60,$20,$20,$20,$70,$00,$50,$00,$70,$20,$20,$20,$70,$00,$f8,$20,$70,$a8,$a8,$70,$20,$f8,
$20,$50,$88,$f8,$88,$50,$20,$00,$70,$88,$88,$88,$50,$50,$d8,$00,$30,$40,$40,$20,$50,$50,$50,$20,$00,$00,
$00,$50,$a8,$a8,$50,$00,$08,$70,$a8,$a8,$a8,$70,$80,$00,$38,$40,$80,$f8,$80,$40,$38,$00,$70,$88,$88,$88,
$88,$88,$88,$00,$00,$f8,$00,$f8,$00,$f8,$00,$00,$20,$20,$f8,$20,$20,$00,$f8,$00,$c0,$30,$08,$30,$c0,$00,
$f8,$00,$50,$f8,$80,$f0,$80,$80,$f8,$00,$78,$80,$80,$f0,$80,$80,$78,$00,$20,$20,$20,$20,$20,$20,$a0,$40,
$70,$20,$20,$20,$20,$20,$70,$00,$50,$70,$20,$20,$20,$20,$70,$00,$00,$18,$24,$24,$18,$00,$00,$00,$00,$30,
$78,$78,$30,$00,$00,$00,$00,$00,$00,$00,$30,$00,$00,$00,$3e,$20,$20,$20,$a0,$60,$20,$00,$a0,$50,$50,$50,
$00,$00,$00,$00,$40,$a0,$20,$40,$e0,$00,$00,$00,$00,$38,$38,$38,$38,$38,$38,$00,$3c,$42,$99,$a1,$a1,$99,
$42,$3c,$00,$00,$90,$a8,$e8,$a8,$90,$00,$00,$00,$60,$10,$70,$90,$68,$00,$00,$00,$f0,$80,$f0,$88,$f0,$00,
$00,$00,$90,$90,$90,$f8,$08,$00,$00,$00,$30,$50,$50,$70,$88,$00,$00,$00,$70,$88,$f8,$80,$70,$00,$00,$20,
$70,$a8,$a8,$70,$20,$00,$00,$00,$78,$48,$40,$40,$40,$00,$00,$00,$88,$50,$20,$50,$88,$00,$00,$00,$88,$98,
$a8,$c8,$88,$00,$00,$50,$20,$00,$98,$a8,$c8,$00,$00,$00,$90,$a0,$c0,$a0,$90,$00,$00,$00,$38,$28,$28,$48,
$88,$00,$00,$00,$88,$d8,$a8,$88,$88,$00,$00,$00,$88,$88,$f8,$88,$88,$00,$00,$00,$70,$88,$88,$88,$70,$00,
$00,$00,$78,$48,$48,$48,$48,$00,$00,$00,$78,$88,$78,$28,$48,$00,$00,$00,$f0,$88,$f0,$80,$80,$00,$00,$00,
$78,$80,$80,$80,$78,$00,$00,$00,$f8,$20,$20,$20,$20,$00,$00,$00,$88,$50,$20,$40,$80,$00,$00,$00,$a8,$70,
$20,$70,$a8,$00,$00,$00,$f0,$48,$70,$48,$f0,$00,$00,$00,$40,$40,$70,$48,$70,$00,$00,$00,$88,$88,$c8,$a8,
$c8,$00,$00,$00,$f0,$08,$70,$08,$f0,$00,$00,$00,$a8,$a8,$a8,$a8,$f8,$00,$00,$00,$70,$88,$38,$88,$70,$00,
$00,$00,$a8,$a8,$a8,$f8,$08,$00,$00,$00,$48,$48,$78,$08,$08,$00,$00,$00,$c0,$40,$70,$48,$70,$00,$90,$a8,
$a8,$e8,$a8,$a8,$90,$00,$20,$50,$88,$88,$f8,$88,$88,$00,$f8,$88,$80,$f0,$88,$88,$f0,$00,$90,$90,$90,$90,
$90,$f8,$08,$00,$38,$28,$28,$48,$48,$f8,$88,$00,$f8,$80,$80,$f0,$80,$80,$f8,$00,$20,$70,$a8,$a8,$a8,$70,
$20,$00,$f8,$88,$88,$80,$80,$80,$80,$00,$88,$88,$50,$20,$50,$88,$88,$00,$88,$88,$98,$a8,$c8,$88,$88,$00,
$50,$20,$88,$98,$a8,$c8,$88,$00,$88,$90,$a0,$c0,$a0,$90,$88,$00,$18,$28,$48,$48,$48,$48,$88,$00,$88,$d8,
$a8,$a8,$88,$88,$88,$00,$88,$88,$88,$f8,$88,$88,$88,$00,$70,$88,$88,$88,$88,$88,$70,$00,$f8,$88,$88,$88,
$88,$88,$88,$00,$78,$88,$88,$78,$28,$48,$88,$00,$f0,$88,$88,$f0,$80,$80,$80,$00,$70,$88,$80,$80,$80,$88,
$70,$00,$f8,$20,$20,$20,$20,$20,$20,$00,$88,$88,$88,$50,$20,$40,$80,$00,$a8,$a8,$70,$20,$70,$a8,$a8,$00,
$f0,$48,$48,$70,$48,$48,$f0,$00,$80,$80,$80,$f0,$88,$88,$f0,$00,$88,$88,$88,$c8,$a8,$a8,$c8,$00,$f0,$08,
$08,$30,$08,$08,$f0,$00,$a8,$a8,$a8,$a8,$a8,$a8,$f8,$00,$70,$88,$08,$78,$08,$88,$70,$00,$a8,$a8,$a8,$a8,
$a8,$f8,$08,$00,$88,$88,$88,$88,$78,$08,$08,$00,$c0,$40,$40,$70,$48,$48,$70,$00
);

const kgiFont8: array[0..256*8-1] of Byte  = (
$00,$00,$00,$00,$00,$00,$00,$00,$7e,$81,$a5,$81,$bd,$99,$81,$7e,$7e,$ff,$db,$ff,$c3,$e7,$ff,$7e,$6c,$fe,
$fe,$fe,$7c,$38,$10,$00,$10,$38,$7c,$fe,$7c,$38,$10,$00,$38,$7c,$38,$fe,$fe,$d6,$10,$38,$10,$10,$38,$7c,
$fe,$7c,$10,$38,$00,$00,$18,$3c,$3c,$18,$00,$00,$ff,$ff,$e7,$c3,$c3,$e7,$ff,$ff,$00,$3c,$66,$42,$42,$66,
$3c,$00,$ff,$c3,$99,$bd,$bd,$99,$c3,$ff,$0f,$07,$0f,$7d,$cc,$cc,$cc,$78,$3c,$66,$66,$66,$3c,$18,$7e,$18,
$3f,$33,$3f,$30,$30,$70,$f0,$e0,$7f,$63,$7f,$63,$63,$67,$e6,$c0,$99,$5a,$3c,$e7,$e7,$3c,$5a,$99,$80,$e0,
$f8,$fe,$f8,$e0,$80,$00,$02,$0e,$3e,$fe,$3e,$0e,$02,$00,$18,$3c,$7e,$18,$18,$7e,$3c,$18,$66,$66,$66,$66,
$66,$00,$66,$00,$7f,$db,$db,$7b,$1b,$1b,$1b,$00,$7e,$c3,$78,$cc,$cc,$78,$8c,$f8,$00,$00,$00,$00,$7e,$7e,
$7e,$00,$18,$3c,$7e,$18,$7e,$3c,$18,$ff,$18,$3c,$7e,$18,$18,$18,$18,$00,$18,$18,$18,$18,$7e,$3c,$18,$00,
$00,$18,$0c,$fe,$0c,$18,$00,$00,$00,$30,$60,$fe,$60,$30,$00,$00,$00,$00,$c0,$c0,$c0,$fe,$00,$00,$00,$24,
$66,$ff,$66,$24,$00,$00,$00,$18,$3c,$7e,$ff,$ff,$00,$00,$00,$ff,$ff,$7e,$3c,$18,$00,$00,$00,$00,$00,$00,
$00,$00,$00,$00,$30,$78,$78,$30,$30,$00,$30,$00,$6c,$6c,$6c,$00,$00,$00,$00,$00,$6c,$6c,$fe,$6c,$fe,$6c,
$6c,$00,$30,$7c,$c0,$78,$0c,$f8,$30,$00,$00,$c6,$cc,$18,$30,$66,$c6,$00,$38,$6c,$38,$76,$dc,$cc,$76,$00,
$60,$60,$c0,$00,$00,$00,$00,$00,$18,$30,$60,$60,$60,$30,$18,$00,$60,$30,$18,$18,$18,$30,$60,$00,$00,$66,
$3c,$ff,$3c,$66,$00,$00,$00,$30,$30,$fc,$30,$30,$00,$00,$00,$00,$00,$00,$00,$70,$30,$60,$00,$00,$00,$fc,
$00,$00,$00,$00,$00,$00,$00,$00,$00,$30,$30,$00,$06,$0c,$18,$30,$60,$c0,$80,$00,$78,$cc,$dc,$fc,$ec,$cc,
$78,$00,$30,$f0,$30,$30,$30,$30,$fc,$00,$78,$cc,$0c,$38,$60,$cc,$fc,$00,$78,$cc,$0c,$38,$0c,$cc,$78,$00,
$1c,$3c,$6c,$cc,$fe,$0c,$0c,$00,$fc,$c0,$f8,$0c,$0c,$cc,$78,$00,$38,$60,$c0,$f8,$cc,$cc,$78,$00,$fc,$cc,
$0c,$18,$30,$60,$60,$00,$78,$cc,$cc,$78,$cc,$cc,$78,$00,$78,$cc,$cc,$7c,$0c,$18,$70,$00,$00,$00,$30,$30,
$00,$30,$30,$00,$00,$00,$30,$30,$00,$70,$30,$60,$18,$30,$60,$c0,$60,$30,$18,$00,$00,$00,$fc,$00,$fc,$00,
$00,$00,$60,$30,$18,$0c,$18,$30,$60,$00,$78,$cc,$0c,$18,$30,$00,$30,$00,$7c,$c6,$de,$de,$de,$c0,$78,$00,
$30,$78,$cc,$cc,$fc,$cc,$cc,$00,$fc,$66,$66,$7c,$66,$66,$fc,$00,$3c,$66,$c0,$c0,$c0,$66,$3c,$00,$fc,$6c,
$66,$66,$66,$6c,$fc,$00,$fe,$62,$68,$78,$68,$62,$fe,$00,$fe,$62,$68,$78,$68,$60,$f0,$00,$3c,$66,$c0,$c0,
$ce,$66,$3e,$00,$cc,$cc,$cc,$fc,$cc,$cc,$cc,$00,$78,$30,$30,$30,$30,$30,$78,$00,$1e,$0c,$0c,$0c,$cc,$cc,
$78,$00,$e6,$66,$6c,$78,$6c,$66,$e6,$00,$f0,$60,$60,$60,$62,$66,$fe,$00,$c6,$ee,$fe,$d6,$c6,$c6,$c6,$00,
$c6,$e6,$f6,$de,$ce,$c6,$c6,$00,$38,$6c,$c6,$c6,$c6,$6c,$38,$00,$fc,$66,$66,$7c,$60,$60,$f0,$00,$78,$cc,
$cc,$cc,$dc,$78,$1c,$00,$fc,$66,$66,$7c,$78,$6c,$e6,$00,$78,$cc,$e0,$38,$1c,$cc,$78,$00,$fc,$b4,$30,$30,
$30,$30,$78,$00,$cc,$cc,$cc,$cc,$cc,$cc,$fc,$00,$cc,$cc,$cc,$cc,$cc,$78,$30,$00,$c6,$c6,$c6,$d6,$fe,$ee,
$c6,$00,$c6,$c6,$6c,$38,$6c,$c6,$c6,$00,$cc,$cc,$cc,$78,$30,$30,$78,$00,$fe,$cc,$98,$30,$62,$c6,$fe,$00,
$78,$60,$60,$60,$60,$60,$78,$00,$c0,$60,$30,$18,$0c,$06,$02,$00,$78,$18,$18,$18,$18,$18,$78,$00,$10,$38,
$6c,$c6,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$ff,$30,$30,$18,$00,$00,$00,$00,$00,$00,$00,$78,$0c,
$7c,$cc,$76,$00,$e0,$60,$7c,$66,$66,$66,$bc,$00,$00,$00,$78,$cc,$c0,$cc,$78,$00,$1c,$0c,$0c,$7c,$cc,$cc,
$76,$00,$00,$00,$78,$cc,$fc,$c0,$78,$00,$38,$6c,$60,$f0,$60,$60,$f0,$00,$00,$00,$76,$cc,$cc,$7c,$0c,$f8,
$e0,$60,$6c,$76,$66,$66,$e6,$00,$30,$00,$70,$30,$30,$30,$78,$00,$18,$00,$78,$18,$18,$18,$d8,$70,$e0,$60,
$66,$6c,$78,$6c,$e6,$00,$70,$30,$30,$30,$30,$30,$78,$00,$00,$00,$ec,$fe,$d6,$c6,$c6,$00,$00,$00,$f8,$cc,
$cc,$cc,$cc,$00,$00,$00,$78,$cc,$cc,$cc,$78,$00,$00,$00,$dc,$66,$66,$7c,$60,$f0,$00,$00,$76,$cc,$cc,$7c,
$0c,$1e,$00,$00,$d8,$6c,$6c,$60,$f0,$00,$00,$00,$7c,$c0,$78,$0c,$f8,$00,$10,$30,$7c,$30,$30,$34,$18,$00,
$00,$00,$cc,$cc,$cc,$cc,$76,$00,$00,$00,$cc,$cc,$cc,$78,$30,$00,$00,$00,$c6,$c6,$d6,$fe,$6c,$00,$00,$00,
$c6,$6c,$38,$6c,$c6,$00,$00,$00,$cc,$cc,$cc,$7c,$0c,$f8,$00,$00,$fc,$98,$30,$64,$fc,$00,$1c,$30,$30,$e0,
$30,$30,$1c,$00,$18,$18,$18,$00,$18,$18,$18,$00,$e0,$30,$30,$1c,$30,$30,$e0,$00,$76,$dc,$00,$00,$00,$00,
$00,$00,$10,$38,$6c,$c6,$c6,$c6,$fe,$00,$78,$cc,$c0,$cc,$78,$18,$0c,$78,$00,$cc,$00,$cc,$cc,$cc,$7e,$00,
$1c,$00,$78,$cc,$fc,$c0,$78,$00,$7e,$c3,$3c,$06,$3e,$66,$3f,$00,$cc,$00,$78,$0c,$7c,$cc,$7e,$00,$e0,$00,
$78,$0c,$7c,$cc,$7e,$00,$30,$30,$78,$0c,$7c,$cc,$7e,$00,$00,$00,$7c,$c0,$c0,$7c,$06,$3c,$7e,$c3,$3c,$66,
$7e,$60,$3c,$00,$cc,$00,$78,$cc,$fc,$c0,$78,$00,$e0,$00,$78,$cc,$fc,$c0,$78,$00,$cc,$00,$70,$30,$30,$30,
$78,$00,$7c,$c6,$38,$18,$18,$18,$3c,$00,$e0,$00,$70,$30,$30,$30,$78,$00,$cc,$30,$78,$cc,$cc,$fc,$cc,$00,
$30,$30,$00,$78,$cc,$fc,$cc,$00,$1c,$00,$fc,$60,$78,$60,$fc,$00,$00,$00,$7f,$0c,$7f,$cc,$7f,$00,$3e,$6c,
$cc,$fe,$cc,$cc,$ce,$00,$78,$cc,$00,$78,$cc,$cc,$78,$00,$00,$cc,$00,$78,$cc,$cc,$78,$00,$00,$e0,$00,$78,
$cc,$cc,$78,$00,$78,$cc,$00,$cc,$cc,$cc,$7e,$00,$00,$e0,$00,$cc,$cc,$cc,$7e,$00,$00,$cc,$00,$cc,$cc,$fc,
$0c,$f8,$c6,$38,$7c,$c6,$c6,$7c,$38,$00,$cc,$00,$cc,$cc,$cc,$cc,$78,$00,$18,$18,$7e,$c0,$c0,$7e,$18,$18,
$38,$6c,$64,$f0,$60,$e6,$fc,$00,$cc,$cc,$78,$fc,$30,$fc,$30,$00,$f0,$d8,$d8,$f4,$cc,$de,$cc,$0e,$0e,$1b,
$18,$7e,$18,$18,$d8,$70,$1c,$00,$78,$0c,$7c,$cc,$7e,$00,$38,$00,$70,$30,$30,$30,$78,$00,$00,$1c,$00,$78,
$cc,$cc,$78,$00,$00,$1c,$00,$cc,$cc,$cc,$7e,$00,$00,$f8,$00,$f8,$cc,$cc,$cc,$00,$fc,$00,$cc,$ec,$fc,$dc,
$cc,$00,$3c,$6c,$6c,$3e,$00,$7e,$00,$00,$3c,$66,$66,$3c,$00,$7e,$00,$00,$30,$00,$30,$60,$c0,$cc,$78,$00,
$00,$00,$00,$fc,$c0,$c0,$00,$00,$00,$00,$00,$fc,$0c,$0c,$00,$00,$c6,$cc,$d8,$3e,$63,$ce,$98,$1f,$c6,$cc,
$d8,$f3,$67,$cf,$9f,$03,$00,$18,$00,$18,$18,$3c,$3c,$18,$00,$33,$66,$cc,$66,$33,$00,$00,$00,$cc,$66,$33,
$66,$cc,$00,$00,$22,$88,$22,$88,$22,$88,$22,$88,$55,$aa,$55,$aa,$55,$aa,$55,$aa,$dc,$76,$dc,$76,$dc,$76,
$dc,$76,$18,$18,$18,$18,$18,$18,$18,$18,$18,$18,$18,$18,$f8,$18,$18,$18,$18,$18,$f8,$18,$f8,$18,$18,$18,
$36,$36,$36,$36,$f6,$36,$36,$36,$00,$00,$00,$00,$fe,$36,$36,$36,$00,$00,$f8,$18,$f8,$18,$18,$18,$36,$36,
$f6,$06,$f6,$36,$36,$36,$36,$36,$36,$36,$36,$36,$36,$36,$00,$00,$fe,$06,$f6,$36,$36,$36,$36,$36,$f6,$06,
$fe,$00,$00,$00,$36,$36,$36,$36,$fe,$00,$00,$00,$18,$18,$f8,$18,$f8,$00,$00,$00,$00,$00,$00,$00,$f8,$18,
$18,$18,$18,$18,$18,$18,$1f,$00,$00,$00,$18,$18,$18,$18,$ff,$00,$00,$00,$00,$00,$00,$00,$ff,$18,$18,$18,
$18,$18,$18,$18,$1f,$18,$18,$18,$00,$00,$00,$00,$ff,$00,$00,$00,$18,$18,$18,$18,$ff,$18,$18,$18,$18,$18,
$1f,$18,$1f,$18,$18,$18,$36,$36,$36,$36,$37,$36,$36,$36,$36,$36,$37,$30,$3f,$00,$00,$00,$00,$00,$3f,$30,
$37,$36,$36,$36,$36,$36,$f7,$00,$ff,$00,$00,$00,$00,$00,$ff,$00,$f7,$36,$36,$36,$36,$36,$37,$30,$37,$36,
$36,$36,$00,$00,$ff,$00,$ff,$00,$00,$00,$36,$36,$f7,$00,$f7,$36,$36,$36,$18,$18,$ff,$00,$ff,$00,$00,$00,
$36,$36,$36,$36,$ff,$00,$00,$00,$00,$00,$ff,$00,$ff,$18,$18,$18,$00,$00,$00,$00,$ff,$36,$36,$36,$36,$36,
$36,$36,$3f,$00,$00,$00,$18,$18,$1f,$18,$1f,$00,$00,$00,$00,$00,$1f,$18,$1f,$18,$18,$18,$00,$00,$00,$00,
$3f,$36,$36,$36,$36,$36,$36,$36,$f7,$36,$36,$36,$18,$18,$ff,$00,$ff,$18,$18,$18,$18,$18,$18,$18,$f8,$00,
$00,$00,$00,$00,$00,$00,$1f,$18,$18,$18,$ff,$ff,$ff,$ff,$ff,$ff,$ff,$ff,$00,$00,$00,$00,$ff,$ff,$ff,$ff,
$f0,$f0,$f0,$f0,$f0,$f0,$f0,$f0,$0f,$0f,$0f,$0f,$0f,$0f,$0f,$0f,$ff,$ff,$ff,$ff,$00,$00,$00,$00,$00,$00,
$76,$dc,$c8,$dc,$76,$00,$00,$78,$cc,$f8,$cc,$f8,$c0,$c0,$00,$fe,$c6,$c0,$c0,$c0,$c0,$00,$00,$fe,$6c,$6c,
$6c,$6c,$6c,$00,$fe,$66,$30,$18,$30,$66,$fe,$00,$00,$00,$7e,$cc,$cc,$cc,$78,$00,$00,$66,$66,$66,$66,$7c,
$60,$c0,$00,$76,$dc,$18,$18,$18,$18,$00,$fc,$30,$78,$cc,$cc,$78,$30,$fc,$38,$6c,$c6,$fe,$c6,$6c,$38,$00,
$38,$6c,$c6,$c6,$6c,$6c,$ee,$00,$1c,$30,$18,$7c,$cc,$cc,$78,$00,$00,$00,$7e,$db,$db,$7e,$00,$00,$06,$0c,
$7e,$db,$db,$7e,$60,$c0,$3c,$60,$c0,$fc,$c0,$60,$3c,$00,$78,$cc,$cc,$cc,$cc,$cc,$cc,$00,$00,$fc,$00,$fc,
$00,$fc,$00,$00,$30,$30,$fc,$30,$30,$00,$fc,$00,$60,$30,$18,$30,$60,$00,$fc,$00,$18,$30,$60,$30,$18,$00,
$fc,$00,$0e,$1b,$1b,$18,$18,$18,$18,$18,$18,$18,$18,$18,$18,$d8,$d8,$70,$30,$30,$00,$fc,$00,$30,$30,$00,
$00,$72,$9c,$00,$72,$9c,$00,$00,$38,$6c,$6c,$38,$00,$00,$00,$00,$00,$00,$00,$18,$18,$00,$00,$00,$00,$00,
$00,$00,$18,$00,$00,$00,$0f,$0c,$0c,$0c,$ec,$6c,$3c,$1c,$78,$6c,$6c,$6c,$6c,$00,$00,$00,$78,$0c,$38,$60,
$7c,$00,$00,$00,$00,$00,$3c,$3c,$3c,$3c,$00,$00,$ff,$ff,$ff,$ff,$ff,$ff,$ff,$ff
);

const kgiFont6PropWidth: array[0..256-1] of Byte = (
  $08,$08,$08,$07,$07,$07,$07,$04,$08,$07,$08,$08,$06,$06,$06,$07,
  $06,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,
  $85,$21,$13,$05,$05,$05,$05,$13,$13,$13,$05,$05,$12,$14,$12,$05,
  $05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$21,$12,$05,$05,$05,$05,
  $05,$05,$05,$05,$05,$05,$05,$05,$05,$13,$05,$05,$05,$05,$05,$05,
  $05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$13,$05,$13,$05,$05,
  $13,$05,$05,$05,$05,$05,$05,$05,$05,$13,$04,$14,$13,$05,$05,$05,
  $05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$14,$21,$04,$05,$08,
  $08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$04,
  $44,$08,$08,$08,$08,$08,$08,$08,$05,$04,$05,$08,$08,$08,$08,$08,
  $05,$05,$05,$05,$05,$05,$13,$13,$05,$05,$05,$04,$05,$05,$05,$05,
  $05,$05,$05,$05,$05,$03,$04,$04,$06,$05,$04,$07,$04,$03,$05,$08,
  $05,$05,$05,$05,$05,$05,$05,$14,$05,$05,$05,$04,$05,$05,$05,$05,
  $14,$05,$05,$05,$05,$05,$05,$05,$14,$05,$05,$05,$05,$05,$14,$05,
  $05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$05,
  $05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$05
);

const kgiFont8PropWidth: array[0..256-1] of Byte = (
  $08,$08,$08,$07,$07,$07,$07,$06,$08,$07,$08,$08,$07,$08,$08,$08,
  $07,$07,$07,$07,$08,$08,$07,$08,$07,$07,$07,$07,$07,$08,$08,$08,
  $85,$14,$15,$07,$06,$07,$07,$03,$14,$14,$08,$06,$13,$06,$22,$07,
  $05,$05,$05,$05,$05,$05,$05,$05,$05,$05,$22,$13,$05,$06,$15,$06,
  $07,$06,$07,$07,$07,$07,$07,$07,$06,$14,$07,$07,$07,$07,$07,$07,
  $07,$06,$07,$06,$06,$06,$06,$07,$07,$06,$07,$14,$07,$14,$07,$08,
  $23,$07,$07,$06,$07,$06,$06,$07,$07,$14,$05,$07,$14,$07,$06,$06,
  $07,$07,$06,$06,$15,$07,$06,$07,$07,$06,$06,$06,$32,$06,$07,$07,
  $06,$07,$06,$08,$07,$07,$07,$07,$08,$06,$06,$06,$07,$05,$06,$06,
  $06,$08,$07,$06,$06,$06,$07,$07,$06,$07,$06,$07,$07,$06,$07,$08,
  $07,$05,$06,$07,$06,$06,$16,$16,$06,$06,$06,$08,$08,$06,$08,$08,
  $08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,
  $38,$08,$08,$38,$08,$08,$38,$28,$28,$28,$08,$08,$28,$08,$08,$08,
  $08,$08,$08,$28,$38,$38,$28,$08,$08,$08,$38,$08,$08,$08,$48,$08,
  $07,$06,$07,$07,$07,$07,$07,$07,$06,$07,$07,$06,$08,$08,$06,$06,
  $06,$06,$06,$06,$35,$05,$06,$07,$15,$32,$32,$08,$15,$15,$24,$08
);


function createFontTexture (constref font: array of Byte; constref fontwdt: array of Byte; prop: Boolean): GLuint;
const
  Width = 16*8;
  Height = 16*8;
var
  tex, tpp: PByte;
  b: Byte;
  cc: Integer;
  x, y, dx, dy: Integer;
begin
  GetMem(tex, Width*Height*4);

  for cc := 0 to 255 do
  begin
    x := (cc mod 16)*8;
    y := (cc div 16)*8;
    for dy := 0 to 7 do
    begin
      b := font[cc*8+dy];
      if prop then b := b shl (fontwdt[cc] shr 4);
      tpp := tex+((y+dy)*(Width*4))+x*4;
      for dx := 0 to 7 do
      begin
        if ((b and $80) <> 0) then
        begin
          tpp^ := 255; Inc(tpp);
          tpp^ := 255; Inc(tpp);
          tpp^ := 255; Inc(tpp);
          tpp^ := 255; Inc(tpp);
        end
        else
        begin
          tpp^ := 0; Inc(tpp);
          tpp^ := 0; Inc(tpp);
          tpp^ := 0; Inc(tpp);
          tpp^ := 0; Inc(tpp);
        end;
        b := (b and $7f) shl 1;
      end;
    end;
  end;

  glGenTextures(1, @result);
  if (result = 0) then raise Exception.Create('can''t create Holmes font texture');

  glBindTexture(GL_TEXTURE_2D, result);
  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

  //GLfloat[4] bclr = 0.0;
  //glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, bclr.ptr);

  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, Width, Height, 0, GL_RGBA{gltt}, GL_UNSIGNED_BYTE, tex);
  glFlush();

  //FreeMem(tex);
end;


var
  font6texid: GLuint = 0;
  font8texid: GLuint = 0;
  prfont6texid: GLuint = 0;
  prfont8texid: GLuint = 0;

procedure createFonts ();
begin
  if (font6texid = 0) then font6texid := createFontTexture(kgiFont6, kgiFont6PropWidth, false);
  if (font8texid = 0) then font8texid := createFontTexture(kgiFont8, kgiFont8PropWidth, true);
  if (prfont6texid = 0) then prfont6texid := createFontTexture(kgiFont6, kgiFont6PropWidth, false);
  if (prfont8texid = 0) then prfont8texid := createFontTexture(kgiFont8, kgiFont8PropWidth, true);
end;


function textWidth6 (const s: AnsiString): Integer;
var
  f: Integer;
begin
  result := 0;
  for f := 1 to Length(s) do Inc(result, Integer(kgiFont6PropWidth[Integer(s[f])] and $0f)+1);
  if (result > 0) then Dec(result); // don't count last empty pixel
end;


function textWidth8 (const s: AnsiString): Integer;
var
  f: Integer;
begin
  result := 0;
  for f := 1 to Length(s) do Inc(result, Integer(kgiFont8PropWidth[Integer(s[f])] and $0f)+1);
  if (result > 0) then Dec(result); // don't count last empty pixel
end;


// return width (including last empty pixel)
function drawTextInternal (wdt, x, y: Integer; const s: AnsiString; r, g, b: Integer; a: Integer; tid: GLuint; constref fontwdt: array of Byte; prop: Boolean): Integer;
var
  f, c: Integer;
  tx, ty: Integer;
begin
  result := 0;
  if (Length(s) = 0) then exit;
  if (a < 0) then a := 0;
  if (a > 255) then a := 255;
  if (r < 0) then r := 0 else if (r > 255) then r := 255;
  if (g < 0) then g := 0 else if (g > 255) then g := 255;
  if (b < 0) then b := 0 else if (b > 255) then b := 255;

  glEnable(GL_BLEND);
  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
  glEnable(GL_TEXTURE_2D);
  // color and opacity
  glColor4f(r/255.0, g/255.0, b/255.0, a/255.0);
  glBindTexture(GL_TEXTURE_2D, tid);

  for f := 1 to Length(s) do
  begin
    c := Integer(s[f]) and $ff;
    tx := (c mod 16)*8;
    ty := (c div 16)*8;
    glBegin(GL_QUADS);
      glTexCoord2f((tx+0)/128.0, (ty+0)/128.0); glVertex2i(x+0, y+0); // top-left
      glTexCoord2f((tx+8)/128.0, (ty+0)/128.0); glVertex2i(x+8, y+0); // top-right
      glTexCoord2f((tx+8)/128.0, (ty+8)/128.0); glVertex2i(x+8, y+8); // bottom-right
      glTexCoord2f((tx+0)/128.0, (ty+8)/128.0); glVertex2i(x+0, y+8); // bottom-left
    glEnd();
    if prop then
    begin
      x += Integer(fontwdt[c] and $0f)+1;
      result += Integer(fontwdt[c] and $0f)+1;
    end
    else
    begin
      x += wdt;
      result += wdt;
    end;
  end;

  glDisable(GL_BLEND);
  glDisable(GL_TEXTURE_2D);
  glColor4f(1, 1, 1, 1);
  glBindTexture(GL_TEXTURE_2D, 0);
end;


// ////////////////////////////////////////////////////////////////////////// //
procedure shadeRect (x, y, w, h: Integer; a: Integer);
begin
  if (a < 0) then a := 0;
  if (a > 255) then a := 255;
  glEnable(GL_BLEND);
  glBlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
  //glBlendFunc(GL_ONE, GL_DST_COLOR);
  //glBlendEquation(GL_FUNC_SUBTRACT);
  glDisable(GL_TEXTURE_2D);
  glColor4f(0.0, 0.0, a/255.0, 1.0);
  glBegin(GL_QUADS);
    glVertex2i(x, y);
    glVertex2i(x+w, y);
    glVertex2i(x+w, y+h);
    glVertex2i(x, y+h);
  glEnd();
  glColor4f(1, 1, 1, 1);
  glDisable(GL_BLEND);
  //glBlendEquation(GL_FUNC_ADD);
end;


// ////////////////////////////////////////////////////////////////////////// //
procedure fillRect (x, y, w, h: Integer; r, g, b: Integer; a: Integer=255);
begin
  if (a < 0) then a := 0;
  if (a > 255) then a := 255;
  if (r < 0) then r := 0 else if (r > 255) then r := 255;
  if (g < 0) then g := 0 else if (g > 255) then g := 255;
  if (b < 0) then b := 0 else if (b > 255) then b := 255;
  glEnable(GL_BLEND);
  //glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
  //glBlendFunc(GL_SRC_ALPHA, GL_DST_ALPHA);
  glBlendFunc(GL_SRC_ALPHA, GL_ONE);
  glDisable(GL_TEXTURE_2D);
  glColor4f(r/255.0, g/255.0, b/255.0, a/255.0);
  glBegin(GL_QUADS);
    glVertex2i(x, y);
    glVertex2i(x+w, y);
    glVertex2i(x+w, y+h);
    glVertex2i(x, y+h);
  glEnd();
  glColor4f(1, 1, 1, 1);
  glDisable(GL_BLEND);
end;


// ////////////////////////////////////////////////////////////////////////// //
function drawText6 (x, y: Integer; const s: AnsiString; r, g, b: Integer; a: Integer=255): Integer;
begin
  if (font6texid = 0) then createFonts();
  drawTextInternal(6, x, y, s, r, g, b, a, font6texid, kgiFont6PropWidth, false);
  result := Length(s)*6;
end;

function drawText8 (x, y: Integer; const s: AnsiString; r, g, b: Integer; a: Integer=255): Integer;
begin
  if (font8texid = 0) then createFonts();
  drawTextInternal(8, x, y, s, r, g, b, a, font8texid, kgiFont8PropWidth, false);
  result := Length(s)*8;
end;

function drawText6Prop (x, y: Integer; const s: AnsiString; r, g, b: Integer; a: Integer=255): Integer;
begin
  if (font6texid = 0) then createFonts();
  result := drawTextInternal(6, x, y, s, r, g, b, a, font6texid, kgiFont6PropWidth, true);
end;

function drawText8Prop (x, y: Integer; const s: AnsiString; r, g, b: Integer; a: Integer=255): Integer;
begin
  if (font8texid = 0) then createFonts();
  result := drawTextInternal(8, x, y, s, r, g, b, a, font8texid, kgiFont8PropWidth, true);
end;


// ////////////////////////////////////////////////////////////////////////// //
// x-centered at `x`
function drawText6XC (x, y: Integer; const s: AnsiString; r, g, b: Integer; a: Integer=255): Integer;
begin
  if (font6texid = 0) then createFonts();
  x -= Length(s)*6 div 2;
  drawTextInternal(6, x, y, s, r, g, b, a, font6texid, kgiFont6PropWidth, false);
  result := Length(s)*6;
end;

function drawText8XC (x, y: Integer; const s: AnsiString; r, g, b: Integer; a: Integer=255): Integer;
begin
  if (font8texid = 0) then createFonts();
  x -= Length(s)*8 div 2;
  drawTextInternal(8, x, y, s, r, g, b, a, font8texid, kgiFont8PropWidth, false);
  result := Length(s)*8;
end;

function drawText6PropXC (x, y: Integer; const s: AnsiString; r, g, b: Integer; a: Integer=255): Integer;
begin
  if (font6texid = 0) then createFonts();
  x -= textWidth6(s) div 2;
  result := drawTextInternal(6, x, y, s, r, g, b, a, font6texid, kgiFont6PropWidth, true);
end;

function drawText8PropXC (x, y: Integer; const s: AnsiString; r, g, b: Integer; a: Integer=255): Integer;
begin
  if (font8texid = 0) then createFonts();
  x -= textWidth8(s) div 2;
  result := drawTextInternal(8, x, y, s, r, g, b, a, font8texid, kgiFont8PropWidth, true);
end;


// ////////////////////////////////////////////////////////////////////////// //
function monsTypeToString (mt: Byte): AnsiString;
begin
  case mt of
    MONSTER_NONE: begin result := 'none'; exit; end;
    MONSTER_DEMON: begin result := 'demon'; exit; end;
    MONSTER_IMP: begin result := 'imp'; exit; end;
    MONSTER_ZOMBY: begin result := 'zombie'; exit; end;
    MONSTER_SERG: begin result := 'serg'; exit; end;
    MONSTER_CYBER: begin result := 'cyber'; exit; end;
    MONSTER_CGUN: begin result := 'cgun'; exit; end;
    MONSTER_BARON: begin result := 'baron'; exit; end;
    MONSTER_KNIGHT: begin result := 'knight'; exit; end;
    MONSTER_CACO: begin result := 'caco'; exit; end;
    MONSTER_SOUL: begin result := 'soul'; exit; end;
    MONSTER_PAIN: begin result := 'pain'; exit; end;
    MONSTER_SPIDER: begin result := 'spider'; exit; end;
    MONSTER_BSP: begin result := 'bsp'; exit; end;
    MONSTER_MANCUB: begin result := 'mancubus'; exit; end;
    MONSTER_SKEL: begin result := 'skel'; exit; end;
    MONSTER_VILE: begin result := 'vile'; exit; end;
    MONSTER_FISH: begin result := 'fish'; exit; end;
    MONSTER_BARREL: begin result := 'barrel'; exit; end;
    MONSTER_ROBO: begin result := 'robo'; exit; end;
    MONSTER_MAN: begin result := 'man'; exit; end;
  end;
  result := 'unknown';
end;


function monsBehToString (bt: Byte): AnsiString;
begin
  case bt of
    BH_NORMAL: begin result := 'normal'; exit; end;
    BH_KILLER: begin result := 'killer'; exit; end;
    BH_MANIAC: begin result := 'maniac'; exit; end;
    BH_INSANE: begin result := 'insane'; exit; end;
    BH_CANNIBAL: begin result := 'cannibal'; exit; end;
    BH_GOOD: begin result := 'good'; exit; end;
  end;
  result := 'unknown';
end;


function monsStateToString (st: Byte): AnsiString;
begin
  case st of
    MONSTATE_SLEEP: begin result := 'sleep'; exit; end;
    MONSTATE_GO: begin result := 'go'; exit; end;
    MONSTATE_RUN: begin result := 'run'; exit; end;
    MONSTATE_CLIMB: begin result := 'climb'; exit; end;
    MONSTATE_DIE: begin result := 'die'; exit; end;
    MONSTATE_DEAD: begin result := 'dead'; exit; end;
    MONSTATE_ATTACK: begin result := 'attack'; exit; end;
    MONSTATE_SHOOT: begin result := 'shoot'; exit; end;
    MONSTATE_PAIN: begin result := 'pain'; exit; end;
    MONSTATE_WAIT: begin result := 'wait'; exit; end;
    MONSTATE_REVIVE: begin result := 'revive'; exit; end;
    MONSTATE_RUNOUT: begin result := 'runout'; exit; end;
  end;
  result := 'unknown';
end;