From ff30f01c1bdbe8e1a32b1fdf492d41c33a4b4bcc Mon Sep 17 00:00:00 2001
From: Hajime Hoshi <hajimehoshi@gmail.com>
Date: Thu, 30 Jun 2016 00:21:47 +0900
Subject: [PATCH] graphics: Remove Finalize

---
 internal/graphics/opengl/context_desktop.go | 15 ---------------
 internal/graphics/opengl/context_js.go      | 10 ----------
 internal/graphics/opengl/context_mobile.go  | 10 ----------
 internal/graphics/program.go                | 16 ----------------
 4 files changed, 51 deletions(-)

diff --git a/internal/graphics/opengl/context_desktop.go b/internal/graphics/opengl/context_desktop.go
index 5f48057e8..2ea6bc113 100644
--- a/internal/graphics/opengl/context_desktop.go
+++ b/internal/graphics/opengl/context_desktop.go
@@ -453,13 +453,6 @@ func (c *Context) DisableVertexAttribArray(p Program, location string) {
 	})
 }
 
-func (c *Context) DeleteProgram(p Program) {
-	c.RunOnContextThread(func() error {
-		gl.DeleteProgram(uint32(p))
-		return nil
-	})
-}
-
 func (c *Context) NewBuffer(bufferType BufferType, v interface{}, bufferUsage BufferUsage) Buffer {
 	var buffer Buffer
 	c.RunOnContextThread(func() error {
@@ -494,14 +487,6 @@ func (c *Context) BufferSubData(bufferType BufferType, data []int16) {
 	})
 }
 
-func (c *Context) DeleteBuffer(b Buffer) {
-	c.RunOnContextThread(func() error {
-		bb := uint32(b)
-		gl.DeleteBuffers(1, &bb)
-		return nil
-	})
-}
-
 func (c *Context) DrawElements(mode Mode, len int, offsetInBytes int) {
 	c.RunOnContextThread(func() error {
 		gl.DrawElements(uint32(mode), int32(len), gl.UNSIGNED_SHORT, gl.PtrOffset(offsetInBytes))
diff --git a/internal/graphics/opengl/context_js.go b/internal/graphics/opengl/context_js.go
index c9ed54f0d..aa7f8a68c 100644
--- a/internal/graphics/opengl/context_js.go
+++ b/internal/graphics/opengl/context_js.go
@@ -363,11 +363,6 @@ func (c *Context) DisableVertexAttribArray(p Program, location string) {
 	gl.DisableVertexAttribArray(int(l))
 }
 
-func (c *Context) DeleteProgram(p Program) {
-	gl := c.gl
-	gl.DeleteProgram(p.Object)
-}
-
 func (c *Context) NewBuffer(bufferType BufferType, v interface{}, bufferUsage BufferUsage) Buffer {
 	gl := c.gl
 	b := gl.CreateBuffer()
@@ -386,11 +381,6 @@ func (c *Context) BufferSubData(bufferType BufferType, data []int16) {
 	gl.BufferSubData(int(bufferType), 0, data)
 }
 
-func (c *Context) DeleteBuffer(b Buffer) {
-	gl := c.gl
-	gl.DeleteBuffer(b.Object)
-}
-
 func (c *Context) DrawElements(mode Mode, len int, offsetInBytes int) {
 	gl := c.gl
 	gl.DrawElements(int(mode), len, gl.UNSIGNED_SHORT, offsetInBytes)
diff --git a/internal/graphics/opengl/context_mobile.go b/internal/graphics/opengl/context_mobile.go
index f39ba1a98..3d782396f 100644
--- a/internal/graphics/opengl/context_mobile.go
+++ b/internal/graphics/opengl/context_mobile.go
@@ -340,11 +340,6 @@ func (c *Context) DisableVertexAttribArray(p Program, location string) {
 	gl.DisableVertexAttribArray(mgl.Attrib(l))
 }
 
-func (c *Context) DeleteProgram(p Program) {
-	gl := c.gl
-	gl.DeleteProgram(mgl.Program(p))
-}
-
 func uint16ToBytes(v []uint16) []byte {
 	b := make([]byte, len(v)*2)
 	for i, x := range v {
@@ -388,11 +383,6 @@ func (c *Context) BufferSubData(bufferType BufferType, data []int16) {
 	gl.BufferSubData(mgl.Enum(bufferType), 0, int16ToBytes(data))
 }
 
-func (c *Context) DeleteBuffer(b Buffer) {
-	gl := c.gl
-	gl.DeleteBuffer(mgl.Buffer(b))
-}
-
 func (c *Context) DrawElements(mode Mode, len int, offsetInBytes int) {
 	gl := c.gl
 	gl.DrawElements(mgl.Enum(mode), len, mgl.UNSIGNED_SHORT, offsetInBytes)
diff --git a/internal/graphics/program.go b/internal/graphics/program.go
index 486ab5990..9fc08c1e2 100644
--- a/internal/graphics/program.go
+++ b/internal/graphics/program.go
@@ -53,10 +53,6 @@ func Initialize(c *opengl.Context) error {
 	return theOpenGLState.initialize(c)
 }
 
-func Finalize(c *opengl.Context) error {
-	return theOpenGLState.finalize(c)
-}
-
 func (s *openGLState) initialize(c *opengl.Context) error {
 	s.lastProgram = zeroProgram
 	s.lastProjectionMatrix = nil
@@ -102,18 +98,6 @@ func (s *openGLState) initialize(c *opengl.Context) error {
 	return nil
 }
 
-func (s *openGLState) finalize(c *opengl.Context) error {
-	s.lastProgram = zeroProgram
-	s.lastProjectionMatrix = nil
-	s.lastModelviewMatrix = nil
-	s.lastColorMatrix = nil
-	s.lastColorMatrixTranslation = nil
-	s.lastTexture = zeroTexture
-	c.DeleteBuffer(s.indexBufferQuads)
-	c.DeleteProgram(s.programTexture)
-	return nil
-}
-
 func areSameFloat32Array(a, b []float32) bool {
 	if len(a) != len(b) {
 		return false