Arch 上的 OpenGL 3.3 Linux

Question

我需要帮助使用核心配置文件进行一些 OpenGL 3.3 编程。我运行在 Arch Linux OS 上安装了软件包 xf86-video-intel 和 mesa-libgl。我的 CPU

中内置了 Intel HD 4400

当我在终端输入glxinfo | grep OpenGL时，显示我可以支持OpenGL 3.3

OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Haswell Mobile 
OpenGL core profile version string: 3.3 (Core Profile) Mesa 12.0.3
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 12.0.3
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 12.0.3
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
OpenGL ES profile extensions:

我正在使用 GLFW3 和 GLEW 来设置 OpenGL

if(!glfwInit()) {
    return -1;
}
GLFWwindow* window = glfwCreateWindow(800, 600, "Hello Guys", NULL, NULL);
if(!window) {
    glfwTerminate();
    return -1;
}

glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);

glfwMakeContextCurrent(window);

if(glewInit() != GLEW_OK) {
    printf("GLEW did not initialize\n");
    glfwTerminate();
    return -1;
}

但是，当我尝试编译着色器时，出现错误 GLSL 3.30 is not supported. Supported versions are: 1.10, 1.20, 1.30, 1.00 ES, and 3.00 ES

Mesa 或 GLFW3 似乎让我的 PC 使用向前兼容的配置文件而不是核心配置文件。我该如何解决这个问题？

Answer 1

来自 the docs（强调我的）：

void glfwWindowHint( int hint, int value )        
This function sets hints for the next call to glfwCreateWindow. ...

因此：除非您想要 the defaults，否则请确保在创建 window 之前 设置提示 ：

glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);

GLFWwindow* window = glfwCreateWindow(800, 600, "Hello Guys", NULL, NULL);
if(!window) {
    glfwTerminate();
    return -1;
}

Arch 上的 OpenGL 3.3 Linux

OpenGL 3.3 on Arch Linux

c

linux

opengl

glfw

mesa