dongrong7883 2014-08-15 10:54
浏览 64

在SDL Go程序中复制纹理时运行时出现紧急情况

I have an SDL2 go program which tries to write a pixel array to the screen. When I try and update the texture with the new pixels the program panics with a runtime error:

fatal error: unexpected signal during runtime execution

Unfortunately I can find little to no documentation about how to pass around unsafe pointers in Go and I'm not sure if I'm approaching this correctly, here is some example code that exhibits the problem:

func main() {
    window := sdl.CreateWindow("test", sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED,
        800, 600, sdl.WINDOW_SHOWN)
    renderer := sdl.CreateRenderer(window, -1, 0)
    texture := sdl.CreateTexture(renderer, sdl.PIXELFORMAT_ARGB8888,
        sdl.TEXTUREACCESS_STATIC, 800, 600)

    defer renderer.Destroy()
    defer texture.Destroy()
    defer window.Destroy()

    for {
        pixels := make([]uint32, 800*600)

        texture.Update(nil, unsafe.Pointer(&pixels), int(800*unsafe.Sizeof(pixels)))

        renderer.Copy(texture, nil, nil)


This code will compile with no errors, but when ran it will produce a runtime panic, but I can't see what would cause that in this code.

I am using these SDL2 Go bindings:

  • 写回答



      相关推荐 更多相似问题


      • ¥15 在线教育培训平台,主要以点播视频和在线练习测试为主,除将视频做切片外,有其他哪种方式降低流量?(关键词-带宽速率)
      • ¥20 用c语音或c++实现银行叫号系统
      • ¥15 人工智能 规则正向演绎和推理
      • ¥20 基于STM32F401的电子密码锁设计
      • ¥15 famamacbeth回归中遇到only size-1 arrays can be converted to Python scalars,求解答
      • ¥15 单片机多个自锁按键的编程实践
      • ¥15 用python操作redis存储中文后,再取出的数据变成了乱码怎么办?
      • ¥15 C语言简单排序问题有偿求解
      • ¥20 请问图片的代码什么意思
      • ¥15 coq问题求带,有偿