diff options
Diffstat (limited to 'hacks/glx/gravitywell.c')
| -rw-r--r-- | hacks/glx/gravitywell.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hacks/glx/gravitywell.c b/hacks/glx/gravitywell.c index 7078764..90edcf0 100644 --- a/hacks/glx/gravitywell.c +++ b/hacks/glx/gravitywell.c @@ -430,6 +430,8 @@ draw_row (ModeInfo *mi, int w, int y, Bool swap) polys += 1; ci = EASE (bp->vtx[vp + 2] / MAX_MASS_COLOR) * bp->ncolors; + if (ci < 0) ci = 0; + if (ci >= bp->ncolors) ci = bp->ncolors - 1; bp->col[cp] = bp->colors[ci].red / 65536.0; bp->col[cp+1] = bp->colors[ci].green / 65536.0; bp->col[cp+2] = bp->colors[ci].blue / 65536.0; @@ -452,6 +454,8 @@ draw_row (ModeInfo *mi, int w, int y, Bool swap) bp->vtx[vp + 2] = gridp[x * GRID_SEG + i]; ci = EASE (bp->vtx[vp + 2] / MAX_MASS_COLOR) * bp->ncolors; + if (ci < 0) ci = 0; + if (ci >= bp->ncolors) ci = bp->ncolors - 1; bp->col[cp] = bp->colors[ci].red / 65536.0; bp->col[cp+1] = bp->colors[ci].green / 65536.0; bp->col[cp+2] = bp->colors[ci].blue / 65536.0; @@ -689,6 +693,8 @@ draw_gw (ModeInfo *mi) GLfloat th, color[4]; int ci; ci = EASE (s->depth / MAX_MASS_COLOR) * bp->ncolors; + if (ci < 0) ci = 0; + if (ci >= bp->ncolors) ci = bp->ncolors - 1; color[0] = bp->colors[ci].red / 65536.0; color[1] = bp->colors[ci].green / 65536.0; color[2] = bp->colors[ci].blue / 65536.0; |