C++ (Cpp) CheckStencil Examples

Example #1

File: Init.cpp Project: rjsikarwar/XCSoar

void
OpenGL::SetupContext()
{
#if defined(HAVE_EGL) && defined(ANDROID)
  egl = EGLInit();
#endif

  texture_non_power_of_two = SupportsNonPowerOfTwoTextures();

#ifdef ANDROID
  native_view->SetTexturePowerOfTwo(texture_non_power_of_two);

  vertex_buffer_object = EnableVBO();
#endif

  frame_buffer_object = CheckFBO() && FBO::Initialise();
  if (frame_buffer_object) {
    render_buffer_depth_stencil = CheckDepthStencil();

    render_buffer_stencil = CheckStencil();
    if (!render_buffer_stencil)
      /* fall back to a packed depth+stencil format */
      render_buffer_stencil = render_buffer_depth_stencil;
  }

  glDisable(GL_DEPTH_TEST);
  glDisable(GL_DITHER);
  glDisable(GL_LIGHTING);

  glEnableClientState(GL_VERTEX_ARRAY);

  InitShapes();
}

Example #2

File: Init.cpp Project: lshachar/LK8000

void
OpenGL::SetupContext()
{
#if defined(HAVE_DYNAMIC_EGL)
  egl = EGLInit();
#endif

  texture_non_power_of_two = SupportsNonPowerOfTwoTextures();

#ifdef HAVE_OES_DRAW_TEXTURE
  oes_draw_texture = CheckOESDrawTexture();
#endif

#ifdef ANDROID
  native_view->SetTexturePowerOfTwo(texture_non_power_of_two);

  vertex_buffer_object = EnableVBO();
#endif

#ifdef HAVE_OES_MAPBUFFER
  mapbuffer = IsExtensionSupported("GL_OES_mapbuffer");
#endif

#ifdef HAVE_DYNAMIC_MAPBUFFER
  if (mapbuffer) {
    GLExt::map_buffer = (PFNGLMAPBUFFEROESPROC)
      eglGetProcAddress("glMapBufferOES");
    GLExt::unmap_buffer = (PFNGLUNMAPBUFFEROESPROC)
      eglGetProcAddress("glUnmapBufferOES");
    if (GLExt::map_buffer == nullptr || GLExt::unmap_buffer == nullptr)
      mapbuffer = false;
  }
#endif

#ifdef HAVE_DYNAMIC_MULTI_DRAW_ARRAYS
  if (IsExtensionSupported("GL_EXT_multi_draw_arrays")) {
    GLExt::multi_draw_arrays = (PFNGLMULTIDRAWARRAYSEXTPROC)
      dlsym(RTLD_DEFAULT, "glMultiDrawArraysEXT");
    GLExt::multi_draw_elements = (PFNGLMULTIDRAWELEMENTSEXTPROC)
      dlsym(RTLD_DEFAULT, "glMultiDrawElementsEXT");
  } else {
    GLExt::multi_draw_arrays = nullptr;
    GLExt::multi_draw_elements = nullptr;
  }
#endif

  frame_buffer_object = CheckFBO() && FBO::Initialise();
  if (frame_buffer_object) {
    render_buffer_depth_stencil = CheckDepthStencil();

    render_buffer_stencil = CheckStencil();
    if (!render_buffer_stencil)
      /* fall back to a packed depth+stencil format */
      render_buffer_stencil = render_buffer_depth_stencil;
  }

  GLfloat lineWidthRange[2] = {0.0f, 0.0f};
  glGetFloatv(GL_ALIASED_LINE_WIDTH_RANGE, lineWidthRange);
  max_line_width = lineWidthRange[1];

  glDisable(GL_DEPTH_TEST);
  glDisable(GL_DITHER);
#ifndef HAVE_GLES2
  glDisable(GL_LIGHTING);
#endif

#ifndef USE_GLSL
  glEnableClientState(GL_VERTEX_ARRAY);
#endif

  InitShapes();

#ifdef USE_GLSL
  InitShaders();
#endif

#ifndef HAVE_GLES
  ::glGetIntegerv(GL_MAX_ATTRIB_STACK_DEPTH, &max_attrib_stack_depth);
#endif
}