Question

我试图通过下列法典来分享欧洲劳工联盟的背景。

createContext(EGL10 egl, EGLDisplay display, EGLConfig eglConfig) {
    EGLContext shared = ...; // a cached egl context
    int[] attrib_list = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL10.EGL_NONE };
    EGLContext context = egl.eglCreateContext(display, eglConfig, shared == null ? EGL10.EGL_NO_CONTEXT : shared,
        attrib_list);
    return context;
  }
}

该代码大多数和海底电话(OS>=2.2)但在所有测试片上都失败。

01-12 18:33:35.381:E/AndroidRuntime(12171):FATAL EXCEPTION: GLThread 11
01-12 18:33:35.381: E/AndroidRuntime(12171): java.lang.RuntimeException: eglMakeCurrent failed: EGL_BAD_ACCESS
01-12 18:33:35.381: E/AndroidRuntime(12171): at android.opengl.GLSurfaceView$EglHelper.throwEglException(GLSurfaceView.java:1146)

由于我宣布了LOCAL_LDLIBS:=-lGLESv2,EGL是2.0个背景。

为什么在桌上失败(xoom, galaxy, lg, sony, 等)

任何见解都会受到赞赏。

Answer 1

造成这种失败的两种可能原因(从欧洲工兵联盟的光谱中):

If ctx is current to some other thread, or if either draw or read are bound to contexts in another thread, an EGL_BAD_ACCESS error is generated.
If binding ctx would exceed the number of current contexts of that client API type supported by the implementation, an EGL_BAD_ACCESS error is generated.

或许也可以是,你在桌旁使用的万国邮联不支持共同的环境。

Answer 2

很可能遵循的是GLSurface 意见中的错误。

public GL createSurface(SurfaceHolder holder) {
    ....

    /*
     * Before we can issue GL commands, we need to make sure
     * the context is current and bound to a surface.
     */
    if (!mEgl.eglMakeCurrent(mEglDisplay, mEglSurface, mEglSurface, mEglContext)) {
         throwEglException("eglMakeCurrent");
    }

}

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