+void mw_buf_print(mw_buffer *mwbuf, unsigned int x, unsigned int y, char *text, unsigned char fsize, mw_color fgclr, mw_color bgclr)
+{
+ unsigned int i,j,z;
+ const unsigned char *data, *font_style;
+ unsigned char mask,xme,yme,offset;
+
+ if (text==NULL || strlen(text) == 0)
+ return;
+
+ switch (fsize) {
+ case 0:
+ data = (const unsigned char *)FONT6x8;
+ font_style = (const unsigned char *)FONT6x8;
+ break;
+ case 1:
+ data = (const unsigned char *)FONT8x8F;
+ font_style = (const unsigned char *)FONT8x8F;
+ break;
+ case 2:
+ data = (const unsigned char *)FONT8x16;
+ font_style = (const unsigned char *)FONT8x16;
+ break;
+ default:
+ data = (const unsigned char *)FONT6x8;
+ font_style = (const unsigned char *)FONT6x8;
+ break;
+ };
+ xme = *data++;
+ yme = *data++;
+ offset = *data;
+
+ do {
+ mask = 0x00;
+ data = (font_style + offset) + (offset * (int)(*text - 32));
+ for (i=0; i < yme; i++) {
+ mask |=0x80;
+ for (j=x; j < (x + xme); j++) {
+ z = y + i;
+ if ((z < mwbuf->res_y) && (j < mwbuf->res_x)) {
+ if (*data & mask) {
+ mw_buf_draw_pixel(mwbuf, j, z, fgclr);
+ } else {
+ mw_buf_draw_pixel(mwbuf, j, z, bgclr);
+ }
+ }
+ mask >>= 1;
+ }
+ data++;
+ }
+ x += xme;
+ text++;
+ } while (*text != '\0');
+}
+
+void mw_buf_draw_line_bresenham(mw_buffer *mwbuf, unsigned int xstart, unsigned int ystart, unsigned int xend, unsigned int yend, mw_color clr)
+{
+ int x, y, t, dx, dy, incx, incy, pdx, pdy, ddx, ddy, es, el, err;
+
+ dx = xend - xstart;
+ dy = yend - ystart;
+
+ incx = (dx >= 0) ? 1 : -1;
+ incy = (dy >= 0) ? 1 : -1;
+
+ if (dx<0)
+ dx = -dx;
+ if (dy<0)
+ dy = -dy;
+
+ if (dx>dy) {
+ pdx = incx; pdy = 0;
+ ddx=incx; ddy=incy;
+ es =dy; el =dx;
+ } else {
+ pdx=0; pdy=incy;
+ ddx=incx; ddy=incy;
+ es =dx; el =dy;
+ }
+
+ x = xstart;
+ y = ystart;
+ err = el/2;
+ mw_buf_draw_pixel(mwbuf, x, y, clr);
+
+ for (t = 0; t < el; ++t) {
+ err -= es;
+ if (err < 0) {
+ err += el;
+ x += ddx;
+ y += ddy;
+ } else {
+ x += pdx;
+ y += pdy;
+ }
+ mw_buf_draw_pixel(mwbuf, x, y, clr);
+ }
+}