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Merged in fix manually because... Bitbucket 

https://bitbucket.org/UnityUIExtensions/unity-ui-extensions/pull-requests/130
pull/413/head
Simon Jackson 2022-04-23 11:53:17 +01:00
parent 3582824afa
commit 30b65fb979
1 changed files with 69 additions and 64 deletions
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133
Runtime/Scripts/Effects/NicerOutline.cs
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@ -1,5 +1,6 @@
/// Credit Melang
/// Credit Melang, Lee Hui
/// Sourced from - http://forum.unity3d.com/members/melang.593409/
/// GC Alloc fix - https://bitbucket.org/UnityUIExtensions/unity-ui-extensions/pull-requests/130
using System.Collections.Generic;
namespace UnityEngine.UI.Extensions
@ -89,42 +90,7 @@ namespace UnityEngine.UI.Extensions
}
}
}
protected void ApplyShadowZeroAlloc(List<UIVertex> verts, Color32 color, int start, int end, float x, float y)
{
UIVertex vt;
var neededCpacity = verts.Count * 2;
if (verts.Capacity < neededCpacity)
verts.Capacity = neededCpacity;
for (int i = start; i < end; ++i)
{
vt = verts[i];
verts.Add(vt);
Vector3 v = vt.position;
v.x += x;
v.y += y;
vt.position = v;
var newColor = color;
if (m_UseGraphicAlpha)
newColor.a = (byte)((newColor.a * verts[i].color.a) / 255);
vt.color = newColor;
verts[i] = vt;
}
}
protected void ApplyShadow(List<UIVertex> verts, Color32 color, int start, int end, float x, float y)
{
var neededCpacity = verts.Count * 2;
if (verts.Capacity < neededCpacity)
verts.Capacity = neededCpacity;
ApplyShadowZeroAlloc(verts, color, start, end, x, y);
}
public override void ModifyMesh(VertexHelper vh)
{
if (!this.IsActive ())
@ -148,36 +114,75 @@ namespace UnityEngine.UI.Extensions
float distanceX = this.effectDistance.x * best_fit_adjustment;
float distanceY = this.effectDistance.y * best_fit_adjustment;
vh.Clear();
int start = 0;
int count = m_Verts.Count;
this.ApplyShadow (m_Verts, this.effectColor, start, m_Verts.Count, distanceX, distanceY);
start = count;
count = m_Verts.Count;
this.ApplyShadow (m_Verts, this.effectColor, start, m_Verts.Count, distanceX, -distanceY);
start = count;
count = m_Verts.Count;
this.ApplyShadow (m_Verts, this.effectColor, start, m_Verts.Count, -distanceX, distanceY);
start = count;
count = m_Verts.Count;
this.ApplyShadow (m_Verts, this.effectColor, start, m_Verts.Count, -distanceX, -distanceY);
start = count;
count = m_Verts.Count;
this.ApplyShadow (m_Verts, this.effectColor, start, m_Verts.Count, distanceX, 0);
start = count;
count = m_Verts.Count;
this.ApplyShadow (m_Verts, this.effectColor, start, m_Verts.Count, -distanceX, 0);
// Apply Outline
start += this.ApplyOutlineNoGC(m_Verts, this.effectColor, distanceX, distanceY, vh, start);
start += this.ApplyOutlineNoGC(m_Verts, this.effectColor, distanceX, -distanceY, vh, start);
start += this.ApplyOutlineNoGC(m_Verts, this.effectColor, -distanceX, distanceY, vh, start);
start += this.ApplyOutlineNoGC(m_Verts, this.effectColor, -distanceX, -distanceY, vh, start);
start += this.ApplyOutlineNoGC(m_Verts, this.effectColor, distanceX, 0, vh, start);
start += this.ApplyOutlineNoGC(m_Verts, this.effectColor, -distanceX, 0, vh, start);
start += this.ApplyOutlineNoGC(m_Verts, this.effectColor, 0, distanceY, vh, start);
start += this.ApplyOutlineNoGC(m_Verts, this.effectColor, 0, -distanceY, vh, start);
start = count;
count = m_Verts.Count;
this.ApplyShadow (m_Verts, this.effectColor, start, m_Verts.Count, 0, distanceY);
start = count;
count = m_Verts.Count;
this.ApplyShadow (m_Verts, this.effectColor, start, m_Verts.Count, 0, -distanceY);
vh.Clear();
vh.AddUIVertexTriangleStream(m_Verts);
// Apply self Text stuff
start += ApplyText(m_Verts, vh, start);
}
private int ApplyOutlineNoGC(List<UIVertex> verts, Color color, float x, float y, VertexHelper vh, int startIndex)
{
int length = verts.Count;
for (int i = 0; i < length; ++i)
{
UIVertex vt = verts[i];
Vector3 v = vt.position;
v.x += x;
v.y += y;
vt.position = v;
var newColor = color;
if (m_UseGraphicAlpha)
newColor.a = (byte)((newColor.a * verts[i].color.a) / 255);
vt.color = newColor;
// Tips: Since two triangles share same two vertices, in theory vertices can reduce to 4 / 6
// But VertexHelper.FillMesh forbid, so leave it be.
vh.AddVert(vt);
}
int triangleCount = length / 3;
for(int i=0; i<triangleCount; ++i)
{
int start = startIndex + 3 * i;
vh.AddTriangle(start + 0, start + 1, start + 2);
}
return length;
}
private int ApplyText(List<UIVertex> verts, VertexHelper vh, int startIndex)
{
int length = verts.Count;
for (int i = 0; i < length; ++i)
{
vh.AddVert(verts[i]);
}
int triangleCount = length / 3;
for (int i = 0; i < triangleCount; ++i)
{
int start = startIndex + 3 * i;
vh.AddTriangle(start + 0, start + 1, start + 2);
}
return length;
}
#if UNITY_EDITOR
protected override void OnValidate ()
@ -187,4 +192,4 @@ namespace UnityEngine.UI.Extensions
}
#endif
}
}
}