Newbie Help! Errors with basic ios export

Hi guys,

Ive set up a basic scene in unity (a cube) and exported it out to xcode (iOS) however I'm receiving this error message when i go to view it on my ipad:

Semantic Issue
Use of undeclared identifier
'GL_BGRA_EXT'

When i click on that error it shows this:

Code (csharp):

1.  
2.  
3.  
4. #include "CMVideoSampling.h"
5.  
6.  
7.  
8. #include "CVTextureCache.h"
9.  
10. #include "GLESHelper.h"
11.  
12.  
13.  
14. #include <OpenGLES/ES2/gl.h>
15.  
16. #include <AVFoundation/AVFoundation.h>
17.  
18.  
19.  
20. void CMVideoSampling_Initialize(CMVideoSampling* sampling)
21.  
22. {
23.  
24.     ::memset(sampling, 0x00, sizeof(CMVideoSampling));
25.  
26.     if(CanUseCVTextureCache())
27.  
28.         sampling->cvTextureCache = CreateCVTextureCache();
29.  
30.     else
31.  
32.         GLES_CHK(glGenTextures(2, (GLuint*)sampling->glTex));
33.  
34. }
35.  
36.  
37.  
38. void CMVideoSampling_Uninitialize(CMVideoSampling* sampling)
39.  
40. {
41.  
42.     if(sampling->cvTextureCacheTexture)
43.  
44.     {
45.  
46.         CFRelease(sampling->cvTextureCacheTexture);
47.  
48.         sampling->cvTextureCacheTexture = 0;
49.  
50.     }
51.  
52.     if(sampling->cvTextureCache)
53.  
54.     {
55.  
56.         CFRelease(sampling->cvTextureCache);
57.  
58.         sampling->cvTextureCache = 0;
59.  
60.     }
61.  
62.     if(sampling->glTex[0])
63.  
64.     {
65.  
66.         GLES_CHK(glDeleteTextures(2, (GLuint*)sampling->glTex));
67.  
68.         sampling->glTex[0] = sampling->glTex[1] = 0;
69.  
70.     }
71.  
72. }
73.  
74.  
75.  
76. int CMVideoSampling_SampleBuffer(CMVideoSampling* sampling, void* buffer, int w, int h)
77.  
78. {
79.  
80.     int retTex = 0;
81.  
82.  
83.  
84.     CVImageBufferRef cvImageBuffer = CMSampleBufferGetImageBuffer((CMSampleBufferRef)buffer);
85.  
86.     if(CanUseCVTextureCache())
87.  
88.     {
89.  
90.         if(sampling->cvTextureCacheTexture)
91.  
92.         {
93.  
94.             CFRelease(sampling->cvTextureCacheTexture);
95.  
96.             FlushCVTextureCache(sampling->cvTextureCache);
97.  
98.         }
99.  
100.         sampling->cvTextureCacheTexture = CreateTextureFromCVTextureCache(sampling->cvTextureCache, cvImageBuffer, w, h, GL_BGRA_EXT, GL_RGBA, GL_UNSIGNED_BYTE);
101.  
102.         if(sampling->cvTextureCacheTexture)
103.  
104.             retTex = GetGLTextureFromCVTextureCache(sampling->cvTextureCacheTexture);
105.  
106.     }
107.  
108.     else
109.  
110.     {
111.  
112.         retTex = sampling->glTex[1];
113.  
114.  
115.  
116.         CVPixelBufferLockBaseAddress(cvImageBuffer,0);
117.  
118.         void* texData = CVPixelBufferGetBaseAddress(cvImageBuffer);
119.  
120.  
121.  
122.         // TODO: provide unity interface?
123.  
124.         GLES_CHK(glBindTexture(GL_TEXTURE_2D, retTex));
125.  
126.         GLES_CHK(glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, texData));
127.  
128.  
129.  
130.         CVPixelBufferUnlockBaseAddress(cvImageBuffer,0);
131.  
132.  
133.  
134.         // swap read and draw textures
135.  
136.         {
137.  
138.             int __temp = sampling->glTex[0];
139.  
140.             sampling->glTex[0] = sampling->glTex[1];
141.  
142.             sampling->glTex[1] = __temp;
143.  
144.         }
145.  
146.     }
147.  
148.  
149.  
150.     GLES_CHK(glBindTexture(GL_TEXTURE_2D, retTex));
151.  
152.     GLES_CHK(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
153.  
154.     GLES_CHK(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
155.  
156.     GLES_CHK(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
157.  
158.     GLES_CHK(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
159.  
160.     GLES_CHK(glBindTexture(GL_TEXTURE_2D, 0));
161.  
162.  
163.  
164.     return retTex;
165.  
166. }
167.  
168.  
169.  
170. int  CMVideoSampling_LastSampledTexture(CMVideoSampling* sampling)
171.  
172. {
173.  
174.     return sampling->cvTextureCacheTexture ? GetGLTextureFromCVTextureCache(sampling->cvTextureCacheTexture) : sampling->glTex[0];
175.  
176. }
177.  
178.  

Ive signed up for a developer account etc and followed everything to the best of my ability through here: http://mobilegbl.wordpress.com/2013/05/21/from-unity-to-an-ios-device/


I really need help, I'm such a noob when it comes to this :/

 

Hi David,

I'm running unity 4.5.4 (a fresh install) and xcode version 6.0.1 (6A317)

Forgive me for being a noob, but where would i put the above #include?


Cheers

 

oh my gosh! I think ive got it working! I think my machine just needed a good reboot! Thanks for your help anyways David

 

That fixed include is not working for me when I build with an old version of Unity 4.3 against XCode 6.

Anyone got a fix for older Unity builds? We can't upgrade Unity for this project.

 

Same problem like "Explore Engage" with Unity 4.3.4 and xcode 6.0.1. here. Also it is problematic to upgrade Unity in this project.

 

Same problem here, too. Just need to run an original test build once on the simulator to document it ... Project was built on Unity 4.3.4 and I'm using Xcode 6.0.1. Wishing I hadn't upgraded Xcode. Any workarounds gratefully received.

The above solution didn't work for me either.

 

Here is the solution of this issue.

http://robertcastle.com/2014/10/automatically-patch-cmvideosampling-mm-using-xcode-6-unity-4-3-4/

 

This is a life saver, thanks.

 

+1 For that solution!

 

Thanks " VIPINSIRWANI " . It's working for 4.3.4 and xcode 6.1.1 ..

 

VIPINSIRWANI
Spot secured for you in Valhalla