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* CFrameBuffer::paintBoxRel: Skip paint the line, if the calculated width < 0

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- When width < 0 GXA overwrites undefined image regions
- Skip paint the line, if the calculated width = 0 (unnecessarily)
This commit is contained in:
Michael Liebmann
2013-05-24 06:35:42 +02:00
parent 99221ee19c
commit 00dd399ff9
1 changed files with 10 additions and 3 deletions
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13
src/driver/framebuffer.cpp
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@@ -675,7 +675,7 @@ void CFrameBuffer::paintBoxRel(const int x, const int y, const int dx, const int
return;
if (dx == 0 || dy == 0) {
printf("paintBoxRel: radius %d, start x %d y %d end x %d y %d\n", radius, x, y, x+dx, y+dy);
printf("[%s - %d]: radius %d, start x %d y %d end x %d y %d\n", __FUNCTION__, __LINE__, radius, x, y, x+dx, y+dy);
return;
}
@@ -721,8 +721,15 @@ void CFrameBuffer::paintBoxRel(const int x, const int y, const int dx, const int
#endif
}
if (dx-ofr-ofl == 0)
printf("paintBoxRel: radius %d, start x %d y %d end x %d y %d\n", radius, x, y, dx-ofr-ofl, y+line);
if (dx-ofr-ofl < 1) {
if (dx-ofr-ofl == 0)
printf("[%s - %d]: radius %d, start x %d y %d end x %d y %d\n", __FUNCTION__, __LINE__, radius, x, y, x+dx-ofr-ofl, y+line);
else
printf("[%s - %04d]: Calculated width: %d\n (radius %d, dx %d, offsetLeft %d, offsetRight %d).\n Width can not be less than 0, abort.\n",
__FUNCTION__, __LINE__, dx-ofr-ofl, radius, dx, ofl, ofr);
line++;
continue;
}
#ifdef USE_NEVIS_GXA
_write_gxa(gxa_base, GXA_BLT_CONTROL_REG, 0);
_write_gxa(gxa_base, cmd, GXA_POINT(x + ofl, y + line)); /* destination x/y */