static void AUXBUF_FILL(gfxr_pic_t *pic, int x, int y, int clipmask, int control, int sci_titlebar_size) {
// Fills the aux buffer and the control map (if control != 0)
int xl, xr;
int ytotal = y * 320;
#ifdef DRAW_SCALED
unsigned const char fillmask = 0x78;
#else
unsigned const char fillmask = 0x4;
#endif
#ifndef DRAW_SCALED
if (!control || !(clipmask & 4))
return; // Without pic scaling, we only do this to fill the control map
#endif
if (clipmask & 1)
clipmask = 1; // vis
else if (clipmask & 2)
clipmask = 2; // pri
else if (clipmask & 4)
clipmask = 4; // ctl
else return;
#ifdef DRAW_SCALED
clipmask |= fillmask; // Bits 3-5
#endif
if (pic->aux_map[ytotal + x] & clipmask)
return;
pic->aux_map[ytotal + x] |= fillmask;
xl = x;
while (xl && !(pic->aux_map[ytotal + xl - 1] & clipmask)) {
--xl;
pic->aux_map[ytotal + xl] |= fillmask;
}
xr = x;
while ((xr < 319) && !(pic->aux_map[ytotal + xr + 1] & clipmask)) {
++xr;
pic->aux_map[ytotal + xr] |= fillmask;
}
clipmask |= CLIPMASK_HARD_BOUND; // Guarantee clipping
if (control) // Draw the same strip on the control map
memset(pic->control_map->index_data + ytotal + xl, control, xr - xl + 1);
if (y > sci_titlebar_size)
AUXBUF_FILL_HELPER(pic, xl, xr, y, -1, clipmask, control, sci_titlebar_size);
if (y < 199)
AUXBUF_FILL_HELPER(pic, xl, xr, y, + 1, clipmask, control, sci_titlebar_size);
}
static void
AUXBUF_FILL_HELPER(gfxr_pic_t *pic, int old_xl, int old_xr, int y, int dy,
int clipmask, int control, int sci_titlebar_size)
{
int xl, xr;
int oldytotal = y * 320;
#ifdef DRAW_SCALED
unsigned const char fillmask = CLIPMASK_HARD_BOUND | 0x78;
#else
unsigned const char fillmask = CLIPMASK_HARD_BOUND | 0x84;
#endif
do {
int ytotal = oldytotal + (320 * dy);
int xcont;
int state;
y += dy;
if (y < sci_titlebar_size || y > 199)
return;
xl = old_xl;
if (!(pic->aux_map[ytotal + xl] & clipmask)) { /* go left */
while (xl && !(pic->aux_map[ytotal + xl - 1] & clipmask))
--xl;
} else /* go right and look for the first valid spot */
while ((xl <= old_xr) && (pic->aux_map[ytotal + xl] & clipmask))
++xl;
if (xl > old_xr) /* No fillable strip above the last one */
return;
if ((ytotal + xl) < 0) { fprintf(stderr,"AARGH-%d\n", __LINE__); BREAKPOINT(); }
xr = xl;
while (xr < 320 && !(pic->aux_map[ytotal + xr] & clipmask)) {
pic->aux_map[ytotal + xr] |= fillmask;
++xr;
}
if ((ytotal + xr) > 64000) { fprintf(stderr,"AARGH-%d\n", __LINE__);
BREAKPOINT();
}
--xr;
if (xr < xl)
return;
/* Check whether we need to recurse on branches in the same direction */
if ((y > sci_titlebar_size && dy < 0)
|| (y < 199 && dy > 0)) {
state = 0;
xcont = xr + 1;
while (xcont <= old_xr) {
if (pic->aux_map[ytotal + xcont] & clipmask)
state = 0;
else if (!state) { /* recurse */
state = 1;
AUXBUF_FILL_HELPER(pic, xcont, old_xr,
y - dy, dy, clipmask, control, sci_titlebar_size);
}
++xcont;
}
}
/* Check whether we need to recurse on backward branches: */
/* left */
if (xl < old_xl - 1) {
state = 0;
for (xcont = old_xl - 1; xcont >= xl; xcont--) {
if (pic->aux_map[oldytotal + xcont] & clipmask)
state = xcont;
else if (state) { /* recurse */
AUXBUF_FILL_HELPER(pic, xcont, state,
y, -dy, clipmask, control, sci_titlebar_size);
state = 0;
}
}
}
/* right */
if (xr > old_xr + 1) {
state = 0;
for (xcont = old_xr + 1; xcont <= xr; xcont++) {
if (pic->aux_map[oldytotal + xcont] & clipmask)
state = xcont;
else if (state) { /* recurse */
AUXBUF_FILL_HELPER(pic, state, xcont,
y, -dy, clipmask, control, sci_titlebar_size);
state = 0;
}
}
}
if ((ytotal + xl) < 0) { fprintf(stderr,"AARGH-%d\n", __LINE__); BREAKPOINT() }
if ((ytotal + xr+1) > 64000) { fprintf(stderr,"AARGH-%d\n", __LINE__); BREAKPOINT(); }
if (control)
memset(pic->control_map->index_data + ytotal + xl, control, xr-xl+1);
oldytotal = ytotal;
old_xr = xr;
old_xl = xl;
} while (1);
