コード例 #1
0
	GLXFBConfig GLXGLSupport::getFBConfigFromContext(::GLXContext context)
	{
		GLXFBConfig fbConfig = 0;
		
		if (GLXEW_VERSION_1_3)
		{
			int fbConfigAttrib[] = {
				GLX_FBCONFIG_ID, 0, 
				None
			};
			GLXFBConfig *fbConfigs;
			int nElements = 0;
			
			glXQueryContext(mGLDisplay, context, GLX_FBCONFIG_ID, &fbConfigAttrib[1]);
			fbConfigs = glXChooseFBConfig(mGLDisplay, DefaultScreen(mGLDisplay), fbConfigAttrib, &nElements);
			
			if (nElements)
			{
				fbConfig = fbConfigs[0];
				XFree(fbConfigs);
			}
		}
		else if (GLXEW_EXT_import_context && GLXEW_SGIX_fbconfig)
		{
			VisualID visualid;
			
			if (glXQueryContextInfoEXT(mGLDisplay, context, GLX_VISUAL_ID, (int*)&visualid))
			{
				fbConfig = getFBConfigFromVisualID(visualid);
			}
		}
	
		return fbConfig;
	}
コード例 #2
0
ファイル: query-context-info.c プロジェクト: blaztinn/piglit
static bool
try_query(GLXContext ctx, int attribute, const char *attribute_string,
	  int expected_error, int expected_value)
{
	bool pass = true;
	int value = 0xDEADBEEF;
	int err;

	err = glXQueryContextInfoEXT(dpy, ctx, attribute, &value);
	XSync(dpy, 0);

	if (err != expected_error) {
		fprintf(stderr,
			"Query of %s had error %d, but %d was expected.\n",
			attribute_string,
			err,
			expected_error);
		pass = false;
	}

	/* There is no way in GLX_SGIX_fbconfig to get an XID from a
	 * GLXFBConfig.  As a result, there's no way to verify
	 * glXQueryContextInfoEXT has returned the correct value.  The
	 * required functionality was not added until GLX 1.3.
	 */
	if (attribute != GLX_FBCONFIG_ID_SGIX) {
		if (expected_error != Success)
			expected_value = 0xDEADBEEF;

		if (value != expected_value) {
			fprintf(stderr,
				"Query of %s had value %d, but %d was "
				"expected.\n",
				attribute_string,
				value,
				expected_value);
			pass = false;
		}
	} else {
		if (value == 0xDEADBEEF) {
			fprintf(stderr,
				"Query of %s did not set a value.\n",
				attribute_string);
			pass = false;
		}
	}

	/* No GLX protocol error should be generated.
	 */
	pass = validate_glx_error_code(Success, -1) && pass;

	return pass;
}