remove code that doesnt work

Author: Guillaume Sabran

HelloOpenGL_Swift.xcodeproj/project.xcworkspace/xcuserdata/guigou.xcuserdatad/UserInterfaceState.xcuserstate

@@ -103,9 +103,6 @@ class OpenGLView: UIView {
         if (self.setupDisplayLink() != 0) {
             NSLog("OpenGLView init():  setupDisplayLink() failed")
         }
-//        if (self.setupTexture() != 0) {
-//            NSLog("OpenGLView init():  setupTexture() failed")
-//        }
     }
 
     required init?(coder aDecoder: NSCoder) {
@@ -304,59 +301,6 @@ class OpenGLView: UIView {
         return 0
     }
 
-//    func setupTexture() -> Int {
-//        let width: Int = spriteImage.width
-//        let height: Int = spriteImage.height
-//        let spriteData = UnsafeMutablePointer<Void>(calloc(Int(UInt(CGFloat(width) * CGFloat(height) * 4)), sizeof(GLubyte.self)))
-//        
-//        let bitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.premultipliedLast.rawValue)
-//        let spriteContext: CGContext = CGContext(data: spriteData, width: width, height: height, bitsPerComponent: 8, bytesPerRow: width*4, space: spriteImage.colorSpace!, bitmapInfo: bitmapInfo.rawValue)!
-//        
-//        spriteContext.draw(in: CGRect(x: 0, y: 0, width: CGFloat(width) , height: CGFloat(height)), image: spriteImage)
-////        CGContextRelease(spriteContext)
-//        
-//        var texName: GLuint = GLuint()
-//        glGenTextures(1, &texName)
-//        glBindTexture(GLenum(GL_TEXTURE_2D), texName)
-//        
-//        glTexParameteri(GLenum(GL_TEXTURE_2D), GLenum(GL_TEXTURE_MIN_FILTER), GL_NEAREST)
-//        glTexImage2D(GLenum(GL_TEXTURE_2D), 0, GL_RGBA, GLsizei(width), GLsizei(height), 0, GLenum(GL_RGBA), UInt32(GL_UNSIGNED_BYTE), spriteData)
-//        
-//        free(spriteData)
-//        _textureID = texName
-//        _textureID = getTextureFromImageWithName(fileName: "mountain.jpg")
-//        return 0
-//    }
-    
-//    func getTextureFromImageWithName(fileName: String) -> GLuint {
-//        
-//        let spriteImage: CGImage? = UIImage(named: fileName)!.cgImage
-//        
-//        if (spriteImage == nil) {
-//            print("Failed to load image!")
-//            exit(1)
-//        }
-//        
-//        let width: Int = spriteImage!.width
-//        let height: Int = spriteImage!.height
-//        let spriteData = UnsafeMutablePointer<GLubyte>(calloc(Int(UInt(CGFloat(width) * CGFloat(height) * 4)), sizeof(GLubyte)))
-//        
-//        let bitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.premultipliedLast.rawValue)
-//        let spriteContext: CGContext = CGContext(data: spriteData, width: width, height: height, bitsPerComponent: 8, bytesPerRow: width*4, space: spriteImage!.colorSpace!, bitmapInfo: bitmapInfo.rawValue)!
-//        
-//        spriteContext.draw(in: CGRect(x: 0, y: 0, width: CGFloat(width) , height: CGFloat(height)), image: spriteImage!)
-////        CGContextRelease(spriteContext)
-//        
-//        var texName: GLuint = GLuint()
-//        glGenTextures(1, &texName)
-//        glBindTexture(GLenum(GL_TEXTURE_2D), texName)
-//        
-//        glTexParameteri(GLenum(GL_TEXTURE_2D), GLenum(GL_TEXTURE_MIN_FILTER), GL_NEAREST)
-//        glTexImage2D(GLenum(GL_TEXTURE_2D), 0, GL_RGBA, GLsizei(width), GLsizei(height), 0, GLenum(GL_RGBA), UInt32(GL_UNSIGNED_BYTE), spriteData)
-//        
-//        free(spriteData)
-//        return texName
-//    }
 
     func setupRenderBuffer() -> Int {
         glGenRenderbuffers(1, &_colorRenderBuffer)

HelloOpenGL_Swift/OpenGLView.swift

@@ -3,13 +3,4 @@ varying mediump vec2 CameraTextureCoord;
 varying lowp vec4 DestinationColor;
 
 void main(void) {
-    mediump vec2 offset = 0.5 * vec2( cos(0.0), sin(0.0));
-    mediump vec4 cr = texture2D(Texture, CameraTextureCoord + offset);
-    mediump vec4 cga = texture2D(Texture, CameraTextureCoord);
-    mediump vec4 cb = texture2D(Texture, CameraTextureCoord - offset);
-//    gl_FragColor = vec4(0.5, 0.5, 0.5, 1.0);
-//    gl_FragColor = vec4(cr.r, cga.g, cb.b, cga.a);
-    gl_FragColor = vec4(DestinationColor.x * CameraTextureCoord.x, DestinationColor.y * CameraTextureCoord.y, DestinationColor.z, DestinationColor.w);
-//    gl_FragColor = vec4(DestinationColor.x * (1.0 - CameraTextureCoord.x), DestinationColor.y * CameraTextureCoord.y, DestinationColor.z, DestinationColor.w);
-//    gl_FragColor = DestinationColor;
-}
+    gl_FragColor = vec4(DestinationColor.x * CameraTextureCoord.x, DestinationColor.y * CameraTextureCoord.y, DestinationColor.z, DestinationColor.w);}