78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
#include "gl.h"
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#include "glfw3.h"
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#include <stdio.h>
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#include <stdbool.h>
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GladGLContext* currentContext;
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void processInput(GLFWwindow* window);
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void FrameBufferSizeCallback(int x, int y, int height, int width);
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int main()
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{
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glfwInit();
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 6);
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glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
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GLFWwindow* window = glfwCreateWindow(
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800, 600, "Test Context", NULL, NULL
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);
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if (window == NULL)
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{
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printf("Fatal error: failed to create glfw window.");
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glfwTerminate();
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return -1;
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}
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else
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{
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printf("%llu\n", (uint64_t)window);
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}
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glfwMakeContextCurrent(window);
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currentContext = calloc(sizeof(GladGLContext));
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PFNGLCLEARCOLORPROC glClearColor = (PFNGLCLEARCOLORPROC)glfwGetProcAddress("glClearColor");
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PFNGLCLEARPROC glClear = (PFNGLCLEARPROC)glfwGetProcAddress("glClear");
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printf("%llu\n", (uint64_t)glClearColor);
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printf("%llu\n", (uint64_t)glClear);
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/*
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if (gladLoadGLContext(currentContext, (GLADloadfunc)glfwGetProcAddress))
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{
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printf("Fatal error: failed in loading OpenGL function.");
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glfwTerminate();
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return -1;
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}
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/**/
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glfwSetFramebufferSizeCallback(window, FrameBufferSizeCallback);
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while (!glfwWindowShouldClose(window))
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{
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processInput(window);
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glClearColor(0.9f, 0.3f, 0.9f, 1.0f);
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glClear(GL_COLOR_BUFFER_BIT /* | GLFW_DEPTH_BITS /**/);
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//printf("%llu", (uint64_t)currentContext->Clear);
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glfwSwapBuffers(window);
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glfwPollEvents();
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}
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glfwTerminate();
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return 0;
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}
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void processInput(GLFWwindow* window)
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{
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if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS)
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glfwSetWindowShouldClose(window, true);
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}
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void FrameBufferSizeCallback(int x, int y, int height, int width)
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{
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currentContext->Viewport(0, 0, height, width);
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} |