Hello

I'm traying to compile hellogl_es2 example(Qt example + OpenGL ES) with the modifications suggested in http://wiki.maemo.org/OpenGL-ES and libgles2-dev (the libs doesn't appear on usr/lib: where are they?)

and I got the next error:

[sbox-FREMANTLE_X86: /home/user/opengl_x86/hellogl_es2] > ls
Makefile bubble.h glwidget.h main.cpp mainwindow.h texture.qrc
bubble.cpp glwidget.cpp hellogl_es2.pro mainwindow.cpp qt.png
[sbox-FREMANTLE_X86: /home/user/opengl_x86/hellogl_es2] > rm -R *.o Makefile
rm: cannot remove `*.o': No such file or directory
[sbox-FREMANTLE_X86: /home/user/opengl_x86/hellogl_es2] > ls
bubble.cpp bubble.h glwidget.cpp glwidget.h hellogl_es2.pro main.cpp mainwindow.cpp mainwindow.h qt.png texture.qrc
[sbox-FREMANTLE_X86: /home/user/opengl_x86/hellogl_es2] > qmake hellogl_es2.pro
[sbox-FREMANTLE_X86: /home/user/opengl_x86/hellogl_es2] > qmake
[sbox-FREMANTLE_X86: /home/user/opengl_x86/hellogl_es2] > make
g++ -c -pipe -O2 -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I/targets/FREMANTLE_X86/usr/share/qt4/mkspecs/linux-g++ -I. -I/targets/FREMANTLE_X86/usr/include/QtCore -I/targets/FREMANTLE_X86/usr/include/QtGui -I/targets/FREMANTLE_X86/usr/include -I. -I. -o main.o main.cpp
g++ -c -pipe -O2 -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I/targets/FREMANTLE_X86/usr/share/qt4/mkspecs/linux-g++ -I. -I/targets/FREMANTLE_X86/usr/include/QtCore -I/targets/FREMANTLE_X86/usr/include/QtGui -I/targets/FREMANTLE_X86/usr/include -I. -I. -o glwidget.o glwidget.cpp
glwidget.cpp: In member function 'void GLWidget:aintQtLogo()':
glwidget.cpp:213: error: 'glVertexAttribPointer' was not declared in this scope
glwidget.cpp:214: error: 'glEnableVertexAttribArray' was not declared in this scope
glwidget.cpp:218: error: 'glDisableVertexAttribArray' was not declared in this scope
glwidget.cpp: In member function 'void GLWidget:aintTexturedCube()':
glwidget.cpp:242: error: 'glVertexAttribPointer' was not declared in this scope
glwidget.cpp:243: error: 'glEnableVertexAttribArray' was not declared in this scope
glwidget.cpp:284: error: 'glUniform1i' was not declared in this scope
glwidget.cpp:288: error: 'glDisableVertexAttribArray' was not declared in this scope
glwidget.cpp: In function 'void reportCompileErrors(GLuint, const char*)':
glwidget.cpp:296: error: 'glGetShaderiv' was not declared in this scope
glwidget.cpp:303: error: 'glGetShaderInfoLog' was not declared in this scope
glwidget.cpp: In function 'void reportLinkErrors(GLuint, const char*, const char*)':
glwidget.cpp:313: error: 'glGetProgramiv' was not declared in this scope
glwidget.cpp:320: error: 'glGetProgramInfoLog' was not declared in this scope
glwidget.cpp: In member function 'virtual void GLWidget::initializeGL()':
glwidget.cpp:336: error: 'glCreateShader' was not declared in this scope
glwidget.cpp:352: error: 'glShaderSource' was not declared in this scope
glwidget.cpp:353: error: 'glCompileShader' was not declared in this scope
glwidget.cpp:368: error: 'glCreateProgram' was not declared in this scope
glwidget.cpp:369: error: 'glAttachShader' was not declared in this scope
glwidget.cpp:371: error: 'glLinkProgram' was not declared in this scope
glwidget.cpp:374: error: 'glGetAttribLocation' was not declared in this scope
glwidget.cpp:376: error: 'glGetUniformLocation' was not declared in this scope
glwidget.cpp: In member function 'virtual void GLWidget:aintGL()':
glwidget.cpp:465: error: 'glUseProgram' was not declared in this scope
glwidget.cpp:466: error: 'glUniformMatrix4fv' was not declared in this scope
glwidget.cpp:470: error: 'glUseProgram' was not declared in this scope
glwidget.cpp:471: error: 'glUniformMatrix4fv' was not declared in this scope
make: *** [glwidget.o] Error 1

Thanks for any help.

ruben

I am using vmware images of PR1.2 SDK (Maemo_PreFinal_2_Ubuntu_Intrepid_Desktop_SDK_Virt ual_Image). It can compile OpenGL ES apps on FREMANTLE_ARMEL but it cannot run it in qemu. It cannot compile OpenGL ES on FREMANTLE_X86. This makes the developement of OpenGL apps for N900 a little more complicated. All I can do now is compile on my laptop and run on N900.

I don't know if Nokia SDK 1.0 changes any of this. I wasted too much time to set up my developement environment that I am not willing to test it.

I consider it quite a big Nokias failure. N900 could have much more rich OpenGL apps ported from PC (and get far more popular because of that) if the SDK was just working as it should have. Not being able to develop, run and debug on PC is quite a stopper for many potential projects. After several failed attempts to start CloudGPS for N900 developement I finally managed it. But I can imagine how many developers trying to do a "quick port" just gave up because they were too frustrated with Maemo SDK failures.