Function main

test/browser/glframebufferattachmentinfo.c:24–109

}

int main() {
  EGLDisplay dpy;
  EGLint dpy_attrib_list[] = {
    EGL_CONFORMANT, EGL_OPENGL_ES2_BIT,
    EGL_DEPTH_SIZE, 16,
    EGL_NONE
  };
  EGLConfig *configs;
  EGLint num_config;
  EGLNativeWindowType win;
  EGLSurface surface;
  EGLContext ctx;
  EGLint ctx_attrib_list[] = {
    EGL_CONTEXT_CLIENT_VERSION, 2,
    EGL_NONE
  };
  dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
  eglInitialize(dpy, NULL, NULL);
  eglChooseConfig(dpy, dpy_attrib_list, NULL, 0, &num_config);
  configs = malloc(sizeof(EGLConfig) * num_config);
  eglChooseConfig(dpy, dpy_attrib_list, configs, num_config, &num_config);
  memset(&win, 0, sizeof(EGLNativeWindowType));
#if defined(__EMSCRIPTEN__)
  // Simply skip window creation because the handle is ignored by Emscripten.
#else
#error not implemented
#endif
  surface = eglCreateWindowSurface(dpy, configs[0], win, NULL);
  ctx = eglCreateContext(dpy, configs[0], EGL_NO_CONTEXT, ctx_attrib_list);
  eglMakeCurrent(dpy, surface, surface, ctx);

  GLuint fbo;
  GLuint tex;
  GLuint rbo;
  glGenFramebuffers(1, &fbo);
  glBindFramebuffer(GL_FRAMEBUFFER, fbo);
  glGenTextures(1, &tex);
  glBindTexture(GL_TEXTURE_CUBE_MAP, tex);
  for (int i = 0; i < 6; i++) {
    glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL_RGB, 256, 256, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
    glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
    glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
  }
  glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_CUBE_MAP_POSITIVE_X, tex, 0);
  glGenRenderbuffers(1, &rbo);
  glBindRenderbuffer(GL_RENDERBUFFER, rbo);
  glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, 256, 256);
  glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, rbo);

  GLint params;
  int result = 1;
  printf("check type of GL_COLOR_ATTACHMENT0\n");
  glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &params);
  result &= check_equal(GL_TEXTURE, params);
  printf("check type of GL_DEPTH_ATTACHMENT\n");
  glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &params);
  result &= check_equal(GL_RENDERBUFFER, params);
  printf("check name of GL_COLOR_ATTACHMENT0\n");