diff options
| -rw-r--r-- | Cwlinux.c | 20 |
1 files changed, 15 insertions, 5 deletions
@@ -1,4 +1,4 @@ -/* $Id: Cwlinux.c,v 1.15 2003/10/05 17:58:50 reinelt Exp $ +/* $Id: Cwlinux.c,v 1.16 2003/11/30 16:18:36 reinelt Exp $ * * driver for Cwlinux serial display modules * @@ -22,6 +22,9 @@ * * * $Log: Cwlinux.c,v $ + * Revision 1.16 2003/11/30 16:18:36 reinelt + * Cwlinux: invalidate Framebuffer in case a char got redefined + * * Revision 1.15 2003/10/05 17:58:50 reinelt * libtool junk; copyright messages cleaned up * @@ -203,7 +206,7 @@ static void CW12232_define_char (int ascii, char *buffer) cmd[3+i]=0; for (j=0; j<8;j++) { if (buffer[j] & (1<<(5-i))) { - cmd[3+i]|=(1<<(7-j)); + cmd[3+i]|=(1<<j); } } } @@ -406,8 +409,15 @@ int CW_flush(void) c=bar_peek(row, col); if (c==-1) c=icon_peek(row, col); if (c!=-1) { - if (c!=32) c++; //blank + if (c!=32) c++; // blank FrameBuffer1[row*Lcd.cols+col]=(char)c; + // invalidate FrameBuffer: + // Cwlinux does not update the display of a user-defined char + // if it is redefined only. We have to definitely write it + // to the display! We force this by invalidating the DoubleBuffer. + // Fixme: This is bad: we should try to remember which chars + // got redefined, and invalidate only those... + FrameBuffer2[row*Lcd.cols+col]=0; } } for (col = 0; col < Lcd.cols; col++) { @@ -416,8 +426,8 @@ int CW_flush(void) for (pos1=col++, pos2=pos1, equal=0; col<Lcd.cols; col++) { if (FrameBuffer1[row*Lcd.cols+col]==FrameBuffer2[row*Lcd.cols+col]) { // If we find just one equal byte, we don't break, because this - // would require a goto, which takes one byte, too. - if (++equal>6) break; + // would require a goto, which takes five bytes, too. + if (++equal>5) break; } else { pos2=col; equal=0; |