Question

当我渲染到FBO并将此FBO blit到窗口并且窗口被最小化时，Java会抛出EXCEPTION_ACCESS_VIOLATION异常。

这是我的屏幕和我的理解，它做什么的代码。

    GL30.glBindFramebuffer(GL30.GL_DRAW_FRAMEBUFFER, 0); //Bind the draw framebuffer to the default (0) 
    GL30.glBindFramebuffer(GL30.GL_READ_FRAMEBUFFER, frameBufferID); //Bind the read framebuffer to the fbo id
    GL11.glDrawBuffer(GL11.GL_BACK); //Setting the draw buffer to the screen
    GL11.glReadBuffer(GL30.GL_COLOR_ATTACHMENT0); //Settiing the read buffer to the color attachment of the fbo
    if(GL30.glCheckFramebufferStatus(GL30.GL_FRAMEBUFFER) == GL30.GL_FRAMEBUFFER_COMPLETE) //Checking if the framebuffer is complete
    { 
        GL30.glBlitFramebuffer(0, 0, fboWidth, fboHeight, 0, 0, windowWidth, windowHeight, GL11.GL_COLOR_BUFFER_BIT, GL11.GL_NEAREST); //Blitting the frambuffer to the screen
    }
    GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, 0); //Unbinding the framebuffer

为防止崩溃，我添加了一项检查以检查窗口是否已最小化

if(isWindowIconified) return; //check if window is minimized
GL30.glBindFramebuffer(GL30.GL_DRAW_FRAMEBUFFER, 0); //Bind the draw framebuffer to the default (0) 
    GL30.glBindFramebuffer(GL30.GL_READ_FRAMEBUFFER, frameBufferID); //Bind the read framebuffer to the fbo
    GL11.glDrawBuffer(GL11.GL_BACK); //Setting the draw buffer to the screen
    GL11.glReadBuffer(GL30.GL_COLOR_ATTACHMENT0); //Settiing the read buffer to the color attachment of the fbo
    if(GL30.glCheckFramebufferStatus(GL30.GL_FRAMEBUFFER) == GL30.GL_FRAMEBUFFER_COMPLETE) //Checking if the framebuffer is complete
    { 
        GL30.glBlitFramebuffer(0, 0, fboWidth, fboHeight, 0, 0, windowWidth, windowHeight, GL11.GL_COLOR_BUFFER_BIT, GL11.GL_NEAREST); //Blitting the frambuffer to the screen
    }
    GL30.glBindFramebuffer(GL30.GL_FRAMEBUFFER, 0); //Unbinding the framebuffer

我在初始化窗口时也添加了这段代码

//Setting the window minimisazion callback
glfwSetWindowIconifyCallback(window, new GLFWWindowIconifyCallbackI() {

    @Override
    public void invoke(long window, boolean iconified) {
        isWindowIconified = iconified;
    }
});

现在程序在我最小化时不会崩溃，但当我按Windows + D进入桌面时程序仍然崩溃。

现在我的问题：什么是防止崩溃的最佳方法？为什么会这样？

文件：

系统信息：

操作系统：Windows 10 Home，版本10.0.15063

GPU：英特尔高清显卡520

驱动程序版本：20.19.15.4642

OpenGL版本：4.4

Answer 1

如果Java抛出EXCEPTION_ACCESS_VIOLATION异常并且它发生在ig9icd64.dll中，可能是因为您使用了旧的Intel GPU驱动程序。在这种情况下，这似乎是问题所在，因为当我使用我的NVIDIA GPU启动程序时它并没有发生，并且在我更新我的英特尔GPU驱动程序后它并没有崩溃。

如果您不确定错误发生的位置，请查看＆＃34;原生帧：＆＃34;和＃34; Java框架：＆＃34;在崩溃报告中。最上面一行显示错误发生的位置。

blitting到窗口时，ig9icd64.dll中的EXCEPTION_ACCESS_VIOLATION崩溃

1 个答案: