Move glClear call to context module

src/context.c

@@ -357,7 +357,6 @@ GLFWbool _glfwRefreshContextAttribs(const _GLFWctxconfig* ctxconfig)
 
     window->GetIntegerv = (PFNGLGETINTEGERVPROC) glfwGetProcAddress("glGetIntegerv");
     window->GetString = (PFNGLGETSTRINGPROC) glfwGetProcAddress("glGetString");
-    window->Clear = (PFNGLCLEARPROC) glfwGetProcAddress("glClear");
 
     if (!parseVersionString(&window->context.api,
                             &window->context.major,
@@ -470,6 +469,14 @@ GLFWbool _glfwRefreshContextAttribs(const _GLFWctxconfig* ctxconfig)
             window->context.release = GLFW_RELEASE_BEHAVIOR_FLUSH;
     }
 
+    // Clearing the front buffer to black to avoid garbage pixels left over from
+    // previous uses of our bit of VRAM
+    {
+        PFNGLCLEARPROC glClear = (PFNGLCLEARPROC) glfwGetProcAddress("glClear");
+        glClear(GL_COLOR_BUFFER_BIT);
+        _glfwPlatformSwapBuffers(window);
+    }
+
     return GLFW_TRUE;
 }
 

src/internal.h

@@ -271,7 +271,6 @@ struct _GLFWwindow
     PFNGLGETSTRINGIPROC GetStringi;
     PFNGLGETINTEGERVPROC GetIntegerv;
     PFNGLGETSTRINGPROC  GetString;
-    PFNGLCLEARPROC      Clear;
 
     struct {
         GLFWwindowposfun        pos;

src/window.c

@@ -200,11 +200,6 @@ GLFWAPI GLFWwindow* glfwCreateWindow(int width, int height,
         return NULL;
     }
 
-    // Clearing the front buffer to black to avoid garbage pixels left over
-    // from previous uses of our bit of VRAM
-    window->Clear(GL_COLOR_BUFFER_BIT);
-    _glfwPlatformSwapBuffers(window);
-
     // Restore the previously current context (or NULL)
     _glfwPlatformMakeContextCurrent(previous);