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backend: gl: don't fill window with big border_width

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If a window's border_width is bigger than its corner_radius, the inner
radius of the border become less than 0, causing the entire window to be
filled.

Fixes #778

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui 2022-02-10 07:47:48 +00:00
parent 01649b68b9
commit ea2ba58efd
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1 changed files with 5 additions and 1 deletions
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6
src/backend/gl/gl_common.c
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@ -395,7 +395,11 @@ static void _gl_compose(backend_t *base, struct backend_image *img, GLuint targe
glUniform1f(gd->win_shader.uniform_corner_radius, (float)img->corner_radius);
}
if (gd->win_shader.uniform_border_width >= 0) {
glUniform1f(gd->win_shader.uniform_border_width, (float)img->border_width);
auto border_width = img->border_width;
if (border_width > img->corner_radius) {
border_width = 0;
}
glUniform1f(gd->win_shader.uniform_border_width, (float)border_width);
}
// log_trace("Draw: %d, %d, %d, %d -> %d, %d (%d, %d) z %d\n",