2 files changed, 61 insertions, 15 deletions

diff --git a/indra/llrender/llrender.cpp b/indra/llrender/llrender.cpp
index ab88e4868e..e26c53bc2e 100644
--- a/indra/llrender/llrender.cpp
+++ b/indra/llrender/llrender.cpp
@@ -1698,25 +1698,64 @@ void LLRender::vertex3f(const GLfloat& x, const GLfloat& y, const GLfloat& z)
         return;
     }
 
-    if (mUIOffset.empty())
+    LLVector4a vert(x, y, z);
+    transform(vert);
+    mVerticesp[mCount] = vert;
+
+    mCount++;
+    mVerticesp[mCount] = mVerticesp[mCount-1];
+    mColorsp[mCount] = mColorsp[mCount-1];
+    mTexcoordsp[mCount] = mTexcoordsp[mCount-1];
+}
+
+void LLRender::transform(LLVector3& vert)
+{
+    if (!mUIOffset.empty())
     {
-        mVerticesp[mCount].set(x,y,z);
+        vert += LLVector3(mUIOffset.back().getF32ptr());
+        vert *= LLVector3(mUIScale.back().getF32ptr());
     }
-    else
+}
+
+void LLRender::transform(LLVector4a& vert)
+{
+    if (!mUIOffset.empty())
     {
-        LLVector4a vert(x, y, z);
         vert.add(mUIOffset.back());
         vert.mul(mUIScale.back());
-        mVerticesp[mCount] = vert;
     }
+}
 
-    mCount++;
-    mVerticesp[mCount] = mVerticesp[mCount-1];
-    mColorsp[mCount] = mColorsp[mCount-1];
-    mTexcoordsp[mCount] = mTexcoordsp[mCount-1];
+void LLRender::untransform(LLVector3& vert)
+{
+    if (!mUIOffset.empty())
+    {
+        vert /= LLVector3(mUIScale.back().getF32ptr());
+        vert -= LLVector3(mUIOffset.back().getF32ptr());
+    }
+}
+
+void LLRender::batchTransform(LLVector4a* verts, U32 vert_count)
+{
+    if (!mUIOffset.empty())
+    {
+        const LLVector4a& offset = mUIOffset.back();
+        const LLVector4a& scale = mUIScale.back();
+
+        for (U32 i = 0; i < vert_count; ++i)
+        {
+            verts[i].add(offset);
+            verts[i].mul(scale);
+        }
+    }
+}
+
+void LLRender::vertexBatchPreTransformed(const std::vector<LLVector4a>& verts)
+{
+    vertexBatchPreTransformed(verts.data(), narrow(verts.size()));
 }
 
-void LLRender::vertexBatchPreTransformed(LLVector4a* verts, S32 vert_count)
+void LLRender::vertexBatchPreTransformed(const LLVector4a* verts, S32 vert_count)
 {
     if (mCount + vert_count > 4094)
     {
@@ -1737,7 +1776,7 @@ void LLRender::vertexBatchPreTransformed(LLVector4a* verts, S32 vert_count)
         mVerticesp[mCount] = mVerticesp[mCount-1];
 }
 
-void LLRender::vertexBatchPreTransformed(LLVector4a* verts, LLVector2* uvs, S32 vert_count)
+void LLRender::vertexBatchPreTransformed(const LLVector4a* verts, const LLVector2* uvs, S32 vert_count)
 {
     if (mCount + vert_count > 4094)
     {
@@ -1761,7 +1800,7 @@ void LLRender::vertexBatchPreTransformed(LLVector4a* verts, LLVector2* uvs, S32
     }
 }
 
-void LLRender::vertexBatchPreTransformed(LLVector4a* verts, LLVector2* uvs, LLColor4U* colors, S32 vert_count)
+void LLRender::vertexBatchPreTransformed(const LLVector4a* verts, const LLVector2* uvs, const LLColor4U* colors, S32 vert_count)
 {
     if (mCount + vert_count > 4094)
     {
diff --git a/indra/llrender/llrender.h b/indra/llrender/llrender.h
index 9c17cf3470..51301c7cac 100644
--- a/indra/llrender/llrender.h
+++ b/indra/llrender/llrender.h
@@ -449,9 +449,16 @@ public:
     void diffuseColor4ubv(const U8* c);
     void diffuseColor4ub(U8 r, U8 g, U8 b, U8 a);
 
-    void vertexBatchPreTransformed(LLVector4a* verts, S32 vert_count);
-    void vertexBatchPreTransformed(LLVector4a* verts, LLVector2* uvs, S32 vert_count);
-    void vertexBatchPreTransformed(LLVector4a* verts, LLVector2* uvs, LLColor4U*, S32 vert_count);
+    void transform(LLVector3& vert);
+    void transform(LLVector4a& vert);
+    void untransform(LLVector3& vert);
+
+    void batchTransform(LLVector4a* verts, U32 vert_count);
+
+    void vertexBatchPreTransformed(const std::vector<LLVector4a>& verts);
+    void vertexBatchPreTransformed(const LLVector4a* verts, S32 vert_count);
+    void vertexBatchPreTransformed(const LLVector4a* verts, const LLVector2* uvs, S32 vert_count);
+    void vertexBatchPreTransformed(const LLVector4a* verts, const LLVector2* uvs, const LLColor4U*, S32 vert_count);
 
     void setColorMask(bool writeColor, bool writeAlpha);
     void setColorMask(bool writeColorR, bool writeColorG, bool writeColorB, bool writeAlpha);