VSYNC

renderer_backend_opengl_windows.odin

@@ -79,6 +79,13 @@ when RENDER_BACKEND_OPENGL {
         })
 
         opengl_swap_buffers(renderer)
+
+        win.wglSwapIntervalEXT = transmute(win.SwapIntervalEXTType)win.wglGetProcAddress("wglSwapIntervalEXT")
+        if win.wglSwapIntervalEXT == nil {
+            opengl_destroy(renderer)
+            return false
+        }
+
         return true
     }
 
@@ -90,6 +97,18 @@ when RENDER_BACKEND_OPENGL {
         )
     }
 
+    opengl_set_vsync :: proc(renderer: ^Renderer, on: bool) -> bool {
+        if win.wglSwapIntervalEXT == nil {
+            fmt.printfln("'wglSwapIntervalEXT' is nil.")
+            return false
+        }
+
+        // Kommer inte in hit.
+        win.wglSwapIntervalEXT(on ? 1 : 0)
+
+        return true
+    }
+
     opengl_set_clear_color :: proc(renderer: ^Renderer, color: Color) {
         r, g, b, a: u8 = max(u8), max(u8), max(u8), max(u8)