glamor: Fix GLES2 non-VBO temporary memory allocation.
We'd get a request for like 16 bytes, claim to have allocated GLAMOR_VBO_SIZE, and then not reallocate when something a request bigger than 16 came along. The intent was to always allocate at least GLAMOR_VBO_SIZE. Fixes segfaults with Xephyr -glamor_gles2 and running gnome-terminal. Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Keith Packard <keithp@keithp.com> Signed-off-by: Keith Packard <keithp@keithp.com>
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@ -119,7 +119,7 @@ glamor_get_vbo_space(ScreenPtr screen, unsigned size, char **vbo_offset)
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if (glamor_priv->vbo_size < size) {
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glamor_priv->vbo_size = MAX(GLAMOR_VBO_SIZE, size);
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free(glamor_priv->vb);
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glamor_priv->vb = XNFalloc(size);
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glamor_priv->vb = XNFalloc(glamor_priv->vbo_size);
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}
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*vbo_offset = NULL;
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/* We point to the start of glamor_priv->vb every time, and
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