1
\$\begingroup\$

I created a small OpenGL renderer in C++ and I want to move to Android so I prepared eclipse with all suitable platforms and create a Native Activity project then add the NDK to the includes and successfully executed and run a sample which color the screen, once I imported the files from the C++ project (copy them to jni folder) and fixed the includes I found many GL declarations are not occurred for example "Function 'glDrawBuffer' could not be resolved", I opened the gl3.h file and discovered that they are not occurred in that file, in my desktop version I use glew library and the file glew.h contains all those definitions so I tried to copy the definition from glew.h

GLAPI void GLAPIENTRY glDrawBuffer (GLenum mode);

to gl3.h

GL_APICALL void GL_APIENTRY glDrawBuffer (GLenum mode);

but still have the same error. is these functions and constants are not occurred in the ES version of OpenGL or I need to update something? I have NDK r 15, SDK 22, Eclipse neo and GCC compiler with Android Builder.

Edit:

I found this definition in the same file

GL_APICALL void GL_APIENTRY glDrawBuffers (GLsizei n, const GLenum *bufs);

I think it is the same function but different number of arguments so I can guess there are many differences between OpenGL and the ES3 so the is same code will not run and must be changed?

also is there a place where I can find the equivalent functions or constants?

\$\endgroup\$
  • 3
    \$\begingroup\$ Yes, OpenGL and OpenGL ES are different specifications, and there are often functions is desktop GL that are not available in ES. \$\endgroup\$ – Maximus Minimus Jul 19 '17 at 13:14
-1
\$\begingroup\$

I found this site Docs GL very helpful for documenting OpenGL functions and its support in all GL versions

\$\endgroup\$
  • 1
    \$\begingroup\$ Hi Mohammed - would you consider revisiting this answer to expand on the content? Right now it relies wholly on the link, which means if the URL ever changes or becomes unreachable then a user won't be able to learn the information you're trying to point them to. Including a summary of a few of the highlights / most relevant points helps keep your answer useful, even if the link fails. \$\endgroup\$ – DMGregory May 16 '18 at 13:42

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.