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framebuffer: add sanity check in paintPixel

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Origin commit data
------------------
Commit: 5abc54f429
Author: Stefan Seyfried <seife@tuxbox-git.slipkontur.de>
Date: 2012-07-14 (Sat, 14 Jul 2012)
This commit is contained in:
Stefan Seyfried
2012-07-14 21:43:36 +02:00
parent b1c4372cd5
commit add8729194
1 changed files with 2 additions and 0 deletions
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src/driver/framebuffer.cpp
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@@ -1279,6 +1279,8 @@ void CFrameBuffer::paintPixel(const int x, const int y, const fb_pixel_t col)
#ifdef USE_NEVIS_GXA #ifdef USE_NEVIS_GXA
paintHLineRel(x, 1, y, col); paintHLineRel(x, 1, y, col);
#else #else
if (x > xRes || y > yRes || x < 0 || y < 0)
return;
fb_pixel_t * pos = getFrameBufferPointer(); fb_pixel_t * pos = getFrameBufferPointer();
pos += (stride / sizeof(fb_pixel_t)) * y; pos += (stride / sizeof(fb_pixel_t)) * y;
pos += x; pos += x;