Attachment 137134 Details for Bug 104915 – GLFW sample testing shading language version queries

GLFW sample testing shading language version queries

idx_shad_lang.c (text/plain), 1.06 KB, created by Baldur Karlsson on 2018-02-02 18:33:43 UTC

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Creator: Baldur Karlsson

Created: 2018-02-02 18:33:43 UTC

Size: 1.06 KB

patch

obsolete

>/* compile with gcc idx_shad_lang.c -lglfw -lGL -o idx_shad_lang */
>
>#include <GLFW/glfw3.h>
>#include <stdlib.h>
>#include <stdio.h>
>
>typedef const GLubyte *(APIENTRYP PFNGLGETSTRINGIPROC) (GLenum name, GLuint index);
>PFNGLGETSTRINGIPROC getStringi = NULL;
>
>int main(void)
>{
>    GLFWwindow* window = NULL;
>    GLint numLanguages = 0, i;
>    if (!glfwInit())
>        exit(EXIT_FAILURE);
>    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
>    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
>    window = glfwCreateWindow(640, 480, "Example", NULL, NULL);
>    if (!window)
>    {
>        glfwTerminate();
>        exit(EXIT_FAILURE);
>    }
>    glfwMakeContextCurrent(window);
>
>    printf("Shading language version: %s\n", glGetString(GL_SHADING_LANGUAGE_VERSION));
>
>    glGetIntegerv(GL_NUM_SHADING_LANGUAGE_VERSIONS, &numLanguages);
>    printf("%d total languages\n", numLanguages);
>
>    getStringi = (PFNGLGETSTRINGIPROC)glfwGetProcAddress("glGetStringi");
>    for(i = 0; i < numLanguages && getStringi; i++)
>      printf("language %d: %s\n", i, getStringi(GL_SHADING_LANGUAGE_VERSION, i));
>}

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