llvmpipe: fix off-by-one in tri_16
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@ -309,7 +309,7 @@ TRI_16(struct lp_rasterizer_task *task,
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partial_mask &= ~(1 << i);
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partial_mask &= ~(1 << i);
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for (j = 0; j < NR_PLANES; j++) {
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for (j = 0; j < NR_PLANES; j++) {
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const int cx = (plane[j].c
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const int cx = (plane[j].c - 1
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- plane[j].dcdx * px
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- plane[j].dcdx * px
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+ plane[j].dcdy * py) * 4;
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+ plane[j].dcdy * py) * 4;
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