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使用SDL模式时，点击demoui的Tab Control模块下的List按钮会崩溃 #19

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sohide opened this issue Oct 30, 2018 · 2 comments
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使用SDL模式时，点击demoui的Tab Control模块下的List按钮会崩溃 #19

sohide opened this issue Oct 30, 2018 · 2 comments

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@sohide
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sohide commented Oct 30, 2018

崩溃断点在SDL内部的D3D绘图驱动里面，
但经过验证，可能是由于canvas.c中友很多绘图函数，多处地方判断条件是
y > c->clip_bottom，
x > c->clip_right
导致刚好lcd缓存溢出一个像素，最终导致绘图驱动越界崩溃
正确判断方法应该是 y >= c->clip_bottom，x >= c->clip_right
@xianjimli
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已修改，请在最新版本验证，谢谢。

@sohide
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sohide commented Nov 1, 2018

1693a38

经过验证，问题已解决

@sohide sohide closed this as completed Nov 1, 2018
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@xianjimli @sohide