From 95444e854067cbc901cc5a4c60efae7695a322d1 Mon Sep 17 00:00:00 2001
From: faiface <faiface@ksp.sk>
Date: Wed, 25 Jan 2017 23:51:27 +0100
Subject: [PATCH] glTriangles optimization
---
gltriangles.go | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/gltriangles.go b/gltriangles.go
index 7d985fd..1e55e4a 100644
--- a/gltriangles.go
+++ b/gltriangles.go
@@ -58,6 +58,26 @@ func (gt *glTriangles) resize(len int) {
}
func (gt *glTriangles) updateData(offset int, t Triangles) {
+ // TrianglesData short path
+ if t, ok := t.(*TrianglesData); ok {
+ for i := offset; i < offset+t.Len(); i++ {
+ var (
+ px, py = (*t)[i].Position.XY()
+ col = (*t)[i].Color
+ tx, ty = (*t)[i].Texture.XY()
+ )
+ gt.data[i*gt.vs.Stride()+0] = float32(px)
+ gt.data[i*gt.vs.Stride()+1] = float32(py)
+ gt.data[i*gt.vs.Stride()+2] = float32(col.R)
+ gt.data[i*gt.vs.Stride()+3] = float32(col.G)
+ gt.data[i*gt.vs.Stride()+4] = float32(col.B)
+ gt.data[i*gt.vs.Stride()+5] = float32(col.A)
+ gt.data[i*gt.vs.Stride()+6] = float32(tx)
+ gt.data[i*gt.vs.Stride()+7] = float32(ty)
+ }
+ return
+ }
+
if t, ok := t.(TrianglesPosition); ok {
for i := offset; i < offset+t.Len(); i++ {
px, py := t.Position(i).XY()
--
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