render: assert sane values for box functions
Width and height should always be > 0 for render functions which take a wlr_box. References https://github.com/swaywm/wlroots/issues/2281
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@ -86,6 +86,7 @@ bool wlr_render_texture_with_matrix(struct wlr_renderer *r,
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void wlr_render_rect(struct wlr_renderer *r, const struct wlr_box *box,
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const float color[static 4], const float projection[static 9]) {
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assert(box->width > 0 && box->height > 0);
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float matrix[9];
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wlr_matrix_project_box(matrix, box, WL_OUTPUT_TRANSFORM_NORMAL, 0,
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projection);
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@ -101,6 +102,7 @@ void wlr_render_quad_with_matrix(struct wlr_renderer *r,
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void wlr_render_ellipse(struct wlr_renderer *r, const struct wlr_box *box,
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const float color[static 4], const float projection[static 9]) {
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assert(box->width > 0 && box->height > 0);
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float matrix[9];
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wlr_matrix_project_box(matrix, box, WL_OUTPUT_TRANSFORM_NORMAL, 0,
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projection);
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