HarmonyOS OH\_NativeImage\_UpdateSurfaceImage报错？

Question

使用NativeImage创建的window从Player中承接画面失败，OH\_NativeImage\_UpdateSurfaceImage一直报错。

Answer 1

eglCreateWindowSurface已经将XCompoent对应的NativeWindow和OpenGL绑定了，红圈中的方法又去写入这个native\_window，这是出现问题的原因。直接调用gldraw渲染然后eglSwapBuffers就会自动送显了，无需再对native\_window拷贝写入。

示例参考：

void RenderThread::DrawImage() {
    OH_LOG_Print(LOG_APP, LOG_DEBUG, LOG_PRINT_DOMAIN, "RenderThread", "DrawImage.");
    if (eglSurface_ == EGL_NO_SURFACE) {
        OH_LOG_Print(LOG_APP, LOG_WARN, LOG_PRINT_DOMAIN, "RenderThread", "eglSurface_ is EGL_NO_SURFACE");
        return;
    }
    renderContext_->MakeCurrent(eglSurface_);
    int32_t ret = OH_NativeImage_UpdateSurfaceImage(nativeImage_);
    if (ret != 0) {
        OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "RenderThread",
                     "OH_NativeImage_UpdateSurfaceImage failed, ret: %{public}d, texId: %{public}d", ret,
                     nativeImageTexId_);
        return;
    }
    OH_LOG_Print(LOG_APP, LOG_DEBUG, LOG_PRINT_DOMAIN, "RenderThread", "OH_NativeImage_UpdateSurfaceImage succeed.");
    float matrix[16] = {1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1};
    ret = OH_NativeImage_GetTransformMatrixV2(nativeImage_, matrix);
    if (ret != 0) {
        OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "RenderThread",
                     "OH_NativeImage_GetTransformMatrix failed, ret: %{public}d", ret);
        return;
    }
    for (int i = 0; i < 16; i++) {
        OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "RenderThread", "mjt: %{public}d:%{public}f", i, matrix[i]);
    }
    glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
    glClear(GL_COLOR_BUFFER_BIT);

    shaderProgram_->Use();
    shaderProgram_->SetInt("texture", 0);
    glActiveTexture(GL_TEXTURE0);
    glBindTexture(GL_TEXTURE_EXTERNAL_OES, nativeImageTexId_);
    shaderProgram_->SetMatrix4v("matTransform", matrix, 16, false);

    glBindVertexArray(vertexArrayObject_);
    glEnable(GL_DEPTH_TEST);
    glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, Detail::indices);
    renderContext_->SwapBuffers(eglSurface_);
}