Framebuffer problem

Question

Hi
I try to render some part of my opengl es scene to texture using framebuffer.
my code is
/// Init framebuffer
     glGenFramebuffersOES(NUM_FRAMEBUFFERS, g_frameBuffers);
     glGenTextures(NUM_FRAMEBUFFERS, g_frameTextures);
     for (int i=0;i<NUM_FRAMEBUFFERS;i++)
          glBindFramebufferOES(GL_FRAMEBUFFER_OES, g_frameBuffers[i]);          
          glBindTexture(GL_TEXTURE_2D, g_frameTextures[i]);
          glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 512, 512, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
          glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
          glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
          glBindTexture(GL_TEXTURE_2D, g_frameTextures[i]);
          glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, g_frameTextures[i],0);
          GLuint errCode = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES);
          assert(glGetError()==0);
          assert(errCode==GL_FRAMEBUFFER_COMPLETE_OES);
Here is all fine, no any errors from glGetError and glCheckFramebufferStatus return GLFRAMEBUFFER_COMPLETEOES
And My drawing code:
GLint oldViewBuffer;
     glGetIntegerv(GL_FRAMEBUFFER_BINDING_OES, &oldViewBuffer);
     for (int fb=0;fb<NUM_FRAMEBUFFERS;fb++)
          glBindFramebufferOES(GL_FRAMEBUFFER_OES, g_frameBuffers[fb]);
          glViewport(0, 0, 512, 512);
          glClearColor(0.8,0.8,0.8,1);
          glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
          glDisable(GL_DEPTH_TEST);
          iDeSprite spr(g_gameTextures[INGAME],0,0,320,480);
          spr.Render(0,0);
          g_Render.FlushBuffer();  // here is drawed queue of sprites
     glBindFramebufferOES(GL_FRAMEBUFFER_OES, oldViewBuffer);
     glViewport(0, 0, 320, 480);
     for (int t=0;t<1;t++)
          iDeTexture myTex;
          myTex.setTextureId(g_frameTextures[t]);
          iDeSprite spr(myTex,0,0,512,512); // size correspond to texture size and size of viewport of framebuffer during rendering
          spr.Render(0,0);
        g_Render.FlushBuffers();
but result texture from framebuffer contain 5 pixels in row stretched from top to bottom of result texture.
What's wrong ?

Answer 1

Yep, you should listen to S3ktor first but if u still have problems u must check is the correct module even loading?
"lsmod|grep fb"
"lsmod|grep vesa"
But as I can see fbcon is not to be found in 2.6.30-ARCH so u might have a look at this wiki pages:
http://wiki.archlinux.org/index.php/Uvesafb
http://wiki.archlinux.org/index.php/GRU … Resolution
I think that they slowly replacing this framebuffer drivers in favour of KMS being under development for ATI/nVIDIA and Intel already have it, even now I saw some reports that framebuffer modules could be messing up with the 3d driver...