@@ -14,6 +14,8 @@ import UIKit
1414import QuartzCore
1515import OpenGLES
1616import GLKit
17+ import CoreMedia
18+ import AVFoundation
1719
1820struct Vertex {
1921 var Position : ( Float , Float , Float )
@@ -24,12 +26,16 @@ class OpenGLView: UIView {
2426 var _context : EAGLContext ?
2527 var _colorRenderBuffer = GLuint ( )
2628 var _colorSlot = GLuint ( )
29+ var _texCoordSlot = GLuint ( )
2730 var _currentRotation = Float ( )
2831 var _depthRenderBuffer = GLuint ( )
2932 var _eaglLayer : CAEAGLLayer ?
3033 var _modelViewUniform = GLuint ( )
3134 var _positionSlot = GLuint ( )
3235 var _projectionUniform = GLuint ( )
36+ var _textureUniform = GLuint ( )
37+ var _textureID = GLuint ( )
38+ var spriteImage = UIImage ( named: " mountain.jpg " ) !. cgImage!;
3339
3440 var _vertices = [
3541 Vertex ( Position: ( 1 , - 1 , 0 ) , Color: ( 1 , 0 , 0 , 1 ) ) ,
@@ -97,6 +103,9 @@ class OpenGLView: UIView {
97103 if ( self . setupDisplayLink ( ) != 0 ) {
98104 NSLog ( " OpenGLView init(): setupDisplayLink() failed " )
99105 }
106+ // if (self.setupTexture() != 0) {
107+ // NSLog("OpenGLView init(): setupTexture() failed")
108+ // }
100109 }
101110
102111 required init ? ( coder aDecoder: NSCoder ) {
@@ -108,7 +117,7 @@ class OpenGLView: UIView {
108117 }
109118
110119 func compileShader( shaderName: String , shaderType: GLenum , shader: UnsafeMutablePointer < GLuint > ) -> Int {
111- let shaderPath = Bundle . main ( ) . pathForResource ( shaderName, ofType: " glsl " )
120+ let shaderPath = Bundle . main. pathForResource ( shaderName, ofType: " glsl " )
112121 var error : NSError ?
113122 let shaderString : NSString ?
114123 do {
@@ -188,8 +197,11 @@ class OpenGLView: UIView {
188197
189198 _positionSlot = GLuint ( glGetAttribLocation ( program, " Position " ) )
190199 _colorSlot = GLuint ( glGetAttribLocation ( program, " SourceColor " ) )
200+ _texCoordSlot = GLuint ( glGetAttribLocation ( program, " TexCoordIn " ) )
201+ _textureUniform = GLuint ( glGetUniformLocation ( program, " Texture " ) )
191202 glEnableVertexAttribArray ( _positionSlot)
192203 glEnableVertexAttribArray ( _colorSlot)
204+ glEnableVertexAttribArray ( _texCoordSlot) ;
193205
194206 _projectionUniform = GLuint ( glGetUniformLocation ( program, " Projection " ) )
195207 _modelViewUniform = GLuint ( glGetUniformLocation ( program, " Modelview " ) )
@@ -219,14 +231,23 @@ class OpenGLView: UIView {
219231 glUniformMatrix4fv ( GLint ( _modelViewUniform) , 1 , 0 , modelView!. glMatrix)
220232 glViewport ( 0 , 0 , GLsizei ( self . frame. size. width) , GLsizei ( self . frame. size. height) ) ;
221233
222- let positionSlotFirstComponent = UnsafePointer < Int > ( bitPattern: 0 )
234+ let positionSlotFirstComponent = UnsafePointer < Int > ( bitPattern: 0 )
223235 glEnableVertexAttribArray ( _positionSlot)
224236 glVertexAttribPointer ( _positionSlot, 3 , GLenum ( GL_FLOAT) , GLboolean ( GL_FALSE) , GLsizei ( sizeof ( Vertex) ) , positionSlotFirstComponent)
225237
226238 glEnableVertexAttribArray ( _colorSlot)
227- let colorSlotFirstComponent = UnsafePointer < Int > ( bitPattern: sizeof ( Float) * 3 )
239+ let colorSlotFirstComponent = UnsafePointer < Int > ( bitPattern: sizeof ( Float) * 3 )
228240 glVertexAttribPointer ( _colorSlot, 4 , GLenum ( GL_FLOAT) , GLboolean ( GL_FALSE) , GLsizei ( sizeof ( Vertex) ) , colorSlotFirstComponent)
229241
242+ glEnableVertexAttribArray ( _texCoordSlot)
243+ let texCoordFirstComponent = UnsafePointer < Int > ( bitPattern: sizeof ( Float) * 3 )
244+ glVertexAttribPointer ( _texCoordSlot, 2 , GLenum ( GL_FLOAT) , GLboolean ( GL_FALSE) , Int32 ( sizeof ( Vertex) ) , texCoordFirstComponent)
245+
246+ glActiveTexture ( UInt32 ( GL_TEXTURE0) )
247+ glBindTexture ( GLenum ( GL_TEXTURE_2D) , _textureID)
248+ glUniform1i ( GLint ( _textureUniform) , 0 )
249+
250+
230251 let vertexBufferOffset = UnsafeMutablePointer < Void > ( bitPattern: 0 )
231252 glDrawElements ( GLenum ( GL_TRIANGLES) , GLsizei ( ( _indices. count * sizeof( GLubyte) ) / sizeof( GLubyte) ) ,
232253 GLenum ( GL_UNSIGNED_BYTE) , vertexBufferOffset)
@@ -259,7 +280,7 @@ class OpenGLView: UIView {
259280
260281 func setupDisplayLink( ) -> Int {
261282 let displayLink : CADisplayLink = CADisplayLink ( target: self , selector: #selector( OpenGLView . render ( displayLink: ) ) )
262- displayLink. add ( to: RunLoop . current ( ) , forMode: RunLoopMode . defaultRunLoopMode. rawValue)
283+ displayLink. add ( to: RunLoop . current, forMode: RunLoopMode ( rawValue : RunLoopMode . defaultRunLoopMode. rawValue) )
263284 return 0
264285 }
265286
@@ -283,6 +304,60 @@ class OpenGLView: UIView {
283304 return 0
284305 }
285306
307+ // func setupTexture() -> Int {
308+ // let width: Int = spriteImage.width
309+ // let height: Int = spriteImage.height
310+ // let spriteData = UnsafeMutablePointer<Void>(calloc(Int(UInt(CGFloat(width) * CGFloat(height) * 4)), sizeof(GLubyte.self)))
311+ //
312+ // let bitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.premultipliedLast.rawValue)
313+ // let spriteContext: CGContext = CGContext(data: spriteData, width: width, height: height, bitsPerComponent: 8, bytesPerRow: width*4, space: spriteImage.colorSpace!, bitmapInfo: bitmapInfo.rawValue)!
314+ //
315+ // spriteContext.draw(in: CGRect(x: 0, y: 0, width: CGFloat(width) , height: CGFloat(height)), image: spriteImage)
316+ //// CGContextRelease(spriteContext)
317+ //
318+ // var texName: GLuint = GLuint()
319+ // glGenTextures(1, &texName)
320+ // glBindTexture(GLenum(GL_TEXTURE_2D), texName)
321+ //
322+ // glTexParameteri(GLenum(GL_TEXTURE_2D), GLenum(GL_TEXTURE_MIN_FILTER), GL_NEAREST)
323+ // glTexImage2D(GLenum(GL_TEXTURE_2D), 0, GL_RGBA, GLsizei(width), GLsizei(height), 0, GLenum(GL_RGBA), UInt32(GL_UNSIGNED_BYTE), spriteData)
324+ //
325+ // free(spriteData)
326+ // _textureID = texName
327+ // _textureID = getTextureFromImageWithName(fileName: "mountain.jpg")
328+ // return 0
329+ // }
330+
331+ // func getTextureFromImageWithName(fileName: String) -> GLuint {
332+ //
333+ // let spriteImage: CGImage? = UIImage(named: fileName)!.cgImage
334+ //
335+ // if (spriteImage == nil) {
336+ // print("Failed to load image!")
337+ // exit(1)
338+ // }
339+ //
340+ // let width: Int = spriteImage!.width
341+ // let height: Int = spriteImage!.height
342+ // let spriteData = UnsafeMutablePointer<GLubyte>(calloc(Int(UInt(CGFloat(width) * CGFloat(height) * 4)), sizeof(GLubyte)))
343+ //
344+ // let bitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.premultipliedLast.rawValue)
345+ // let spriteContext: CGContext = CGContext(data: spriteData, width: width, height: height, bitsPerComponent: 8, bytesPerRow: width*4, space: spriteImage!.colorSpace!, bitmapInfo: bitmapInfo.rawValue)!
346+ //
347+ // spriteContext.draw(in: CGRect(x: 0, y: 0, width: CGFloat(width) , height: CGFloat(height)), image: spriteImage!)
348+ //// CGContextRelease(spriteContext)
349+ //
350+ // var texName: GLuint = GLuint()
351+ // glGenTextures(1, &texName)
352+ // glBindTexture(GLenum(GL_TEXTURE_2D), texName)
353+ //
354+ // glTexParameteri(GLenum(GL_TEXTURE_2D), GLenum(GL_TEXTURE_MIN_FILTER), GL_NEAREST)
355+ // glTexImage2D(GLenum(GL_TEXTURE_2D), 0, GL_RGBA, GLsizei(width), GLsizei(height), 0, GLenum(GL_RGBA), UInt32(GL_UNSIGNED_BYTE), spriteData)
356+ //
357+ // free(spriteData)
358+ // return texName
359+ // }
360+
286361 func setupRenderBuffer( ) -> Int {
287362 glGenRenderbuffers ( 1 , & _colorRenderBuffer)
288363 glBindRenderbuffer ( GLenum ( GL_RENDERBUFFER) , _colorRenderBuffer)
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