1 files changed, 121 insertions, 0 deletions
diff --git a/src/glfww.c b/src/glfww.c
new file mode 100644
index 0000000..bfcc8d0
--- /dev/null
+++ b/src/glfww.c
@@ -0,0 +1,121 @@
+#include <stdio.h>
+#include <GLFW/glfw3.h>
+#include "util.h"
+#include <unistd.h>
+#include <stdlib.h>
+#include <math.h>
+#include "glfww.h"
+int w,h;
+#define ab_to_vp(x,y,w,h,x1,y1) float x = 2 * ((float)x1/w) -1;\
+    float y = 2 * ((float)y1/h) -1;
+GLFWwindow* glfw_init(){
+  GLFWwindow* window;
+
+  if(!glfwInit())
+    err("failed to init glfw",pexit);
+
+  window = glfwCreateWindow(800,500,"nya",NULL,NULL);
+  if(!window){
+    glfwTerminate();
+    err("failed to create window",pexit);
+  }
+
+  glfwMakeContextCurrent(window);
+  int w,h;
+  glfwGetFramebufferSize(window,&w,&h);
+  glViewport(0,0,w,h);
+  return window;
+  /*
+  while(!glfwWindowShouldClose(window)){
+    glClear(GL_COLOR_BUFFER_BIT);
+    glColor3f(1.0f,0.0f,0.0f);
+    glBegin(GL_POINTS);
+    for(float x = 0.0; x!=200.0;x+=1.0){
+    ab_to_vp(ax,ay,w,h,x,x);
+    glVertex2f(ax,ay);
+    }
+    glEnd();
+    glfwSwapBuffers(window);
+    glfwPollEvents();
+  }
+  glfwTerminate();
+  return 0;
+  */
+}
+void refresh_size(GLFWwindow*wi){
+  glfwGetFramebufferSize(wi,&w,&h);
+}
+#define glfw_load(w) glfwSwapBuffers(w);
+void glfw_loop(GLFWwindow*window){
+  while(!glfwWindowShouldClose(window)){
+    
+    //glfw_load(window);
+    glfwPollEvents();
+  }
+  glfwTerminate();
+}
+void glfw_pixel_partial(GLFWwindow*wi,int x, int y){ 
+  ab_to_vp(ax,ay,w,h,x,y);
+  glVertex2f(ax,ay);
+  
+}
+
+void glfw_clear(GLFWwindow*w){
+  glClear(GL_COLOR_BUFFER_BIT);
+}
+
+void glfw_circle(GLFWwindow* wi,int x, int y, int r){
+  //SDL_SetRenderDrawColor(w.r,255,255,0,0);
+  glfwGetFramebufferSize(wi,&w,&h);
+  glBegin(GL_POINTS);
+  glColor3f(1.0f,0.0f,0.0f);
+  for(int i = 1; i!=360; i++){
+    float cf = cosf(i)*r;
+    float sf = sinf(i)*r;
+    //for(int z = 1; z<=r; z++){
+    //int x2 = x + z * cf;
+    //int y2 = y + z * sf; 
+    
+    glfw_pixel_partial(wi,x+cf,y+sf);
+    //}
+  } 
+  glEnd();
+}
+void glfw_circle_partial(GLFWwindow* wi,int x, int y, int r){
+  //SDL_SetRenderDrawColor(w.r,255,255,0,0); 
+  if(r==0){
+    glfw_pixel_partial(wi,x,y);
+    return;
+  }
+  for(int i = 1; i!=360; i++){
+    float cf = cosf(i)*r;
+    float sf = sinf(i)*r;
+    //for(int z = 1; z<=r; z++){
+    //int x2 = x + z * cf;
+    //int y2 = y + z * sf; 
+    
+    glfw_pixel_partial(wi,x+cf,y+sf);
+    //}
+  } 
+}
+void glfw_square(GLFWwindow* wi,int x, int y, int r){
+  //SDL_SetRenderDrawColor(w.r,255,255,0,0);
+  glfwGetFramebufferSize(wi,&w,&h);
+  glBegin(GL_POINTS);
+  glColor3f(1.0f,0.0f,0.0f); 
+  for(int i = 0; i<=r; i++){
+    for(int j = 0; j<=r; j++){
+      glfw_pixel_partial(wi,i-r/2+x,j-r/2+y);
+    }
+  }
+  glEnd();
+}
+int __glw_main(){
+  GLFWwindow* w = glfw_init();
+  glfw_circle(w,50,50,20);
+  glfw_load(w);
+  sleep(5);
+  glfwTerminate();
+  //glfw_loop(w);
+  return 0;
+}