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45 lines
1.3 KiB
45 lines
1.3 KiB
diff --git a/third_party/agg23/agg_math_stroke.h b/third_party/agg23/agg_math_stroke.h |
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index 6d7ba8a..2b06b1b 100644 |
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--- a/third_party/agg23/agg_math_stroke.h |
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+++ b/third_party/agg23/agg_math_stroke.h |
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@@ -60,28 +60,30 @@ void stroke_calc_arc(VertexConsumer& out_vertices, |
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} |
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da = FXSYS_acos(width / (width + ((1.0f / 8) / approximation_scale))) * 2; |
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out_vertices.add(coord_type(x + dx1, y + dy1)); |
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- if(!ccw) { |
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- if(a1 > a2) { |
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- a2 += 2 * FX_PI; |
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+ if (da > 0) { |
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+ if (!ccw) { |
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+ if (a1 > a2) { |
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+ a2 += 2 * FX_PI; |
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} |
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a2 -= da / 4; |
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a1 += da; |
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- while(a1 < a2) { |
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+ while (a1 < a2) { |
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out_vertices.add(coord_type(x + (width * FXSYS_cos(a1)), |
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y + (width * FXSYS_sin(a1)))); |
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- a1 += da; |
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+ a1 += da; |
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} |
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- } else { |
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- if(a1 < a2) { |
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- a2 -= 2 * FX_PI; |
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+ } else { |
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+ if (a1 < a2) { |
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+ a2 -= 2 * FX_PI; |
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} |
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a2 += da / 4; |
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a1 -= da; |
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- while(a1 > a2) { |
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+ while (a1 > a2) { |
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out_vertices.add(coord_type(x + (width * FXSYS_cos(a1)), |
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y + (width * FXSYS_sin(a1)))); |
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- a1 -= da; |
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+ a1 -= da; |
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} |
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+ } |
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} |
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out_vertices.add(coord_type(x + dx2, y + dy2)); |
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}
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