forked from bartvdbraak/blender
bugfix [#20480] crash/lock-up for certain aspect ratios
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2061f91741
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bc9b873f60
@ -47,6 +47,7 @@ extern "C" {
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* @return True if @a rect is empty.
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*/
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int BLI_rcti_is_empty(struct rcti *rect);
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int BLI_rctf_is_empty(struct rctf *rect);
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void BLI_init_rctf(struct rctf *rect, float xmin, float xmax, float ymin, float ymax);
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void BLI_init_rcti(struct rcti *rect, int xmin, int xmax, int ymin, int ymax);
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void BLI_translate_rctf(struct rctf *rect, float x, float y);
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@ -48,6 +48,12 @@ int BLI_rcti_is_empty(rcti * rect)
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(rect->ymax<=rect->ymin));
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}
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int BLI_rctf_is_empty(rctf * rect)
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{
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return ((rect->xmax<=rect->xmin) ||
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(rect->ymax<=rect->ymin));
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}
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int BLI_in_rcti(rcti * rect, int x, int y)
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{
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@ -820,7 +820,7 @@ static void node_draw_basis(const bContext *C, ARegion *ar, SpaceNode *snode, bN
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/* preview */
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if(node->flag & NODE_PREVIEW) {
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BLI_lock_thread(LOCK_PREVIEW);
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if(node->preview && node->preview->rect)
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if(node->preview && node->preview->rect && !BLI_rctf_is_empty(&node->prvr))
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node_draw_preview(node->preview, &node->prvr);
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BLI_unlock_thread(LOCK_PREVIEW);
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}
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