71 lines
2.3 KiB
C
71 lines
2.3 KiB
C
#include "gl.h"
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#include "glfw3.h"
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#include "stdio.h"
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#include "stdlib.h"
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#include <stdbool.h>
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#include "main.h"
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void 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(800, 600, "Test", NULL, NULL);
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if (window == NULL)
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{
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return -100;
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}
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glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
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glfwMakeContextCurrent(window);
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context = malloc(sizeof(GladGLContext));
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gladLoadGLContext(context, glfwGetProcAddress);
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unsigned int shader = context->CreateShader(GL_VERTEX_SHADER);
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const GLchar* code[] = { "Test string\0" };
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context->ShaderSource(shader, 1, code, NULL);
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printf("%s\n", code);
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while (!glfwWindowShouldClose(window))
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{
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// input
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// -----
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processInput(window);
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// render
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// ------
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context->ClearColor(0.2f, 0.3f, 0.3f, 1.0f);
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context->Clear(GL_COLOR_BUFFER_BIT);
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// glfw: swap buffers and poll IO events (keys pressed/released, mouse moved etc.)
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// -------------------------------------------------------------------------------
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glfwSwapBuffers(window);
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glfwPollEvents();
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}
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// glfw: terminate, clearing all previously allocated GLFW resources.
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// ------------------------------------------------------------------
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glfwTerminate();
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free(context);
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return 0;
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}
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// process all input: query GLFW whether relevant keys are pressed/released this frame and react accordingly
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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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// glfw: whenever the window size changed (by OS or user resize) this callback function executes
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// ---------------------------------------------------------------------------------------------
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void framebuffer_size_callback(GLFWwindow* window, int width, int height)
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{
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// make sure the viewport matches the new window dimensions; note that width and
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// height will be significantly larger than specified on retina displays.
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context->Viewport(0, 0, width, height);
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} |