a-game

commit 3885c5b602323f1b955680b32b48f7462c6cf1d9
parent cf9499da4a0512a2c0de111c9d584c5001bee60e
Author: amin <dev@aminmesbah.com>
Date:   Wed, 16 May 2018 06:46:57 +0000

Make window resizeable

FossilOrigin-Name: a1eab61508850e9832294cfede2fd4dad269582f3d13d81c10408f034092d08a
Diffstat:
M
src/main.c
 | 
59
++++++++++++++++++++++++++++++++++++++++++++---------------

1 file changed, 44 insertions(+), 15 deletions(-)
diff --git a/src/main.c b/src/main.c
@@ -3,56 +3,85 @@
 #include <glad/glad.h>
 #include <GLFW/glfw3.h>
 
-#ifdef GLAD_DEBUG
-void pre_gl_callback(const char *func_name, void *func_ptr, int len_args, ...)
-{
-    printf("Calling: %s (%d arguments)\n", func_name, len_args);
-}
-#endif
+#include "shader.h"
+#include "glmth.h"
 
-void error_callback(int error, const char* description)
-{
-    fprintf(stderr, "Error: %s\n", description);
-}
 
 #define SCR_WIDTH 800
 #define SCR_HEIGHT 600
 
+void error_callback(int error, const char* description);
+void framebuffer_size_callback(GLFWwindow* window, int width, int height);
+
+#ifdef GLAD_DEBUG
+void pre_gl_callback(const char *func_name, void *func_ptr, int len_args, ...);
+#endif
+
+
 int main(void)
 {
     glfwSetErrorCallback(error_callback);
 
     if (!glfwInit())
     {
-        fprintf(stderr, "GLFW initialization failed");
+        fprintf(stderr, "GLFW initialization failed\n");
         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);
 
     GLFWwindow* window = glfwCreateWindow(SCR_WIDTH, SCR_HEIGHT, "A Game", NULL, NULL);
     if (!window)
     {
-        fprintf(stderr, "GLFW window creation failed");
+        fprintf(stderr, "GLFW window creation failed\n");
         glfwTerminate();
         return -1;
     }
-
     glfwMakeContextCurrent(window);
+    glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
+
     if (!gladLoadGLLoader((GLADloadproc) glfwGetProcAddress))
     {
-        fprintf(stderr, "glad initialization failed");
+        fprintf(stderr, "glad initialization failed\n");
+        glfwDestroyWindow(window);
+        glfwTerminate();
         return -1;
     }
 
-    printf("Hello, world");
+    glViewport(0, 0, SCR_WIDTH, SCR_HEIGHT);
 
     while (!glfwWindowShouldClose(window))
     {
+        glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
+        glClear(GL_COLOR_BUFFER_BIT);
+        glfwSwapBuffers(window);
+        glfwPollEvents();
     }
 
     glfwDestroyWindow(window);
     glfwTerminate();
     return 0;
 }
+
+
+void error_callback(int error, const char* description)
+{
+    fprintf(stderr, "Error: %s\n", description);
+}
+
+
+void framebuffer_size_callback(GLFWwindow* window, int width, int height)
+{
+    glViewport(0, 0, width, height);
+}
+
+
+#ifdef GLAD_DEBUG
+void pre_gl_callback(const char *func_name, void *func_ptr, int len_args, ...)
+{
+    printf("Calling: %s (%d arguments)\n", func_name, len_args);
+}
+#endif