From 80e3a3497ce0031b7653feb403c277b4b7941e81 Mon Sep 17 00:00:00 2001
From: Hajime Hoshi <hajimehoshi@gmail.com>
Date: Sat, 22 Oct 2016 03:21:53 +0900
Subject: [PATCH] opengl: BufferSubData should be able to take generic type

---
 internal/graphics/opengl/context_desktop.go | 9 +++++++--
 internal/graphics/opengl/context_js.go      | 9 +++++++--
 internal/graphics/opengl/context_mobile.go  | 9 +++++++--
 3 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/internal/graphics/opengl/context_desktop.go b/internal/graphics/opengl/context_desktop.go
index b59d5ef6f..07d1cb4f3 100644
--- a/internal/graphics/opengl/context_desktop.go
+++ b/internal/graphics/opengl/context_desktop.go
@@ -483,9 +483,14 @@ func (c *Context) BindElementArrayBuffer(b Buffer) {
 	})
 }
 
-func (c *Context) BufferSubData(bufferType BufferType, data []int16) {
+func (c *Context) BufferSubData(bufferType BufferType, data interface{}) {
 	_ = c.runOnContextThread(func() error {
-		gl.BufferSubData(uint32(bufferType), 0, 2*len(data), gl.Ptr(data))
+		switch data := data.(type) {
+		case []int16:
+			gl.BufferSubData(uint32(bufferType), 0, 2*len(data), gl.Ptr(data))
+		default:
+			panic("not reach")
+		}
 		return nil
 	})
 }
diff --git a/internal/graphics/opengl/context_js.go b/internal/graphics/opengl/context_js.go
index ca3620d21..97189c5ec 100644
--- a/internal/graphics/opengl/context_js.go
+++ b/internal/graphics/opengl/context_js.go
@@ -385,9 +385,14 @@ func (c *Context) BindElementArrayBuffer(b Buffer) {
 	gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, b.Object)
 }
 
-func (c *Context) BufferSubData(bufferType BufferType, data []int16) {
+func (c *Context) BufferSubData(bufferType BufferType, data interface{}) {
 	gl := c.gl
-	gl.BufferSubData(int(bufferType), 0, data)
+	switch data := data.(type) {
+	case []int16:
+		gl.BufferSubData(int(bufferType), 0, data)
+	default:
+		panic("not reach")
+	}
 }
 
 func (c *Context) DeleteBuffer(b Buffer) {
diff --git a/internal/graphics/opengl/context_mobile.go b/internal/graphics/opengl/context_mobile.go
index e0f043f37..4bcb7aa0c 100644
--- a/internal/graphics/opengl/context_mobile.go
+++ b/internal/graphics/opengl/context_mobile.go
@@ -392,9 +392,14 @@ func (c *Context) BindElementArrayBuffer(b Buffer) {
 	gl.BindBuffer(mgl.ELEMENT_ARRAY_BUFFER, mgl.Buffer(b))
 }
 
-func (c *Context) BufferSubData(bufferType BufferType, data []int16) {
+func (c *Context) BufferSubData(bufferType BufferType, data interface{}) {
 	gl := c.gl
-	gl.BufferSubData(mgl.Enum(bufferType), 0, int16ToBytes(data))
+	switch data := data.(type) {
+	case []int16:
+		gl.BufferSubData(mgl.Enum(bufferType), 0, int16ToBytes(data))
+	default:
+		panic("not reach")
+	}
 }
 
 func (c *Context) DeleteBuffer(b Buffer) {