From e47baca4f23db43ec91fbf64d5d06d7c0dbee495 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Sat, 6 Apr 2019 07:39:49 +0800
Subject: *misc

---
 source/modules/asura-core/graphics/gl.cpp | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

(limited to 'source/modules/asura-core/graphics/gl.cpp')

diff --git a/source/modules/asura-core/graphics/gl.cpp b/source/modules/asura-core/graphics/gl.cpp
index 47476a7..54fadb7 100644
--- a/source/modules/asura-core/graphics/gl.cpp
+++ b/source/modules/asura-core/graphics/gl.cpp
@@ -30,13 +30,41 @@ namespace AsuraEngine
 		{
 		}
 
+		bool OpenGL::Init(const AEMath::Recti& view)
+		{
+			bool loaded = false;
+#if ASURA_OPENGL_LOADER & ASURA_OPENGL_GLAD
+			if (!loaded)
+				loaded = gladLoadGL();
+#endif
+			if (!loaded)
+				return false;
+			state.viewport = view;
+			return true;
+		}
+
+		void OpenGL::WipeError()
+		{
+			while (glGetError() != GL_NO_ERROR);
+		}
+
+		bool OpenGL::HasError()
+		{
+			return glGetError() != GL_NO_ERROR; 
+		}
+
+		GLenum OpenGL::GetError()
+		{
+			return glGetError();
+		}
+
 		void OpenGL::SetViewport(const Recti v)
 		{
 			glViewport(v.x, v.y, v.w, v.h);
 			state.viewport = v; 
 		}
 
-		Recti OpenGL::GetViewport()
+		const Recti& OpenGL::GetViewport()
 		{
 			return state.viewport;
 		}
-- 
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