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Allow a zero sized clipping region

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This commit is contained in:
inmarket 2015-07-08 13:34:53 +10:00
parent 0d54fae731
commit 9d62e631cf
1 changed files with 1 additions and 1 deletions
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2
src/gdisp/gdisp.c
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@ -1259,7 +1259,7 @@ void gdispGBlitArea(GDisplay *g, coord_t x, coord_t y, coord_t cx, coord_t cy, c
{ {
if (x < 0) { cx += x; x = 0; } if (x < 0) { cx += x; x = 0; }
if (y < 0) { cy += y; y = 0; } if (y < 0) { cy += y; y = 0; }
if (cx <= 0 || cy <= 0 || x >= g->g.Width || y >= g->g.Height) { MUTEX_EXIT(g); return; } if (cx <= 0 || cy <= 0 || x >= g->g.Width || y >= g->g.Height) { x = y = cx = cy = 0; }
g->clipx0 = x; g->clipx0 = x;
g->clipy0 = y; g->clipy0 = y;
g->clipx1 = x+cx; if (g->clipx1 > g->g.Width) g->clipx1 = g->g.Width; g->clipx1 = x+cx; if (g->clipx1 > g->g.Width) g->clipx1 = g->g.Width;