Wrap color clear in 'FBO::clear()' convenience function

src/bitmap.cpp

@@ -186,7 +186,7 @@ struct BitmapPrivate
 		glState.scissorBox.pushSet(rect);
 		glState.clearColor.pushSet(color);
 
-		glClear(GL_COLOR_BUFFER_BIT);
+		FBO::clear();
 
 		glState.clearColor.pop();
 		glState.scissorBox.pop();
@@ -569,7 +569,7 @@ void Bitmap::radialBlur(int angle, int divisions)
 	FBO::bind(newTex.fbo, FBO::Draw);
 
 	glState.clearColor.pushSet(Vec4());
-	glClear(GL_COLOR_BUFFER_BIT);
+	FBO::clear();
 
 	Transform trans;
 	trans.setOrigin(Vec2(_width / 2.0f, _height / 2.0f));
@@ -618,7 +618,7 @@ void Bitmap::clear()
 
 	glState.clearColor.pushSet(Vec4());
 
-	glClear(GL_COLOR_BUFFER_BIT);
+	FBO::clear();
 
 	glState.clearColor.pop();
 

src/gl-util.h

@@ -225,6 +225,11 @@ namespace FBO
 
 		return pixel;
 	}
+
+	inline void clear()
+	{
+		glClear(GL_COLOR_BUFFER_BIT);
+	}
 }
 
 /* Vertex Array Object */

src/graphics.cpp

@@ -54,7 +54,7 @@ struct PingPong
 			TEXFBO::allocEmpty(rt[i], screenW, screenH);
 			TEXFBO::linkFBO(rt[i]);
 			glClearColor(0, 0, 0, 1);
-			glClear(GL_COLOR_BUFFER_BIT);
+			FBO::clear();
 		}
 	}
 
@@ -148,7 +148,7 @@ public:
 
 		glState.viewport.set(IntRect(0, 0, w, h));
 
-		glClear(GL_COLOR_BUFFER_BIT);
+		FBO::clear();
 
 		Scene::composite();
 
@@ -414,7 +414,7 @@ struct GraphicsPrivate
 	void blitToScreen()
 	{
 		FBO::unbind(FBO::Draw);
-		glClear(GL_COLOR_BUFFER_BIT);
+		FBO::clear();
 		blitBufferFlippedScaled();
 	}
 
@@ -573,7 +573,7 @@ void Graphics::transition(int duration,
 		/* Draw the composed frame to a buffer first
 		 * (we need this because we're skipping PingPong) */
 		FBO::bind(p->transBuffer.fbo, FBO::Draw);
-		glClear(GL_COLOR_BUFFER_BIT);
+		FBO::clear();
 		p->screenQuad.draw();
 
 		p->checkResize();
@@ -712,7 +712,7 @@ void Graphics::repaintWait(volatile bool *exitCond)
 	{
 		gState->checkShutdown();
 
-		glClear(GL_COLOR_BUFFER_BIT);
+		FBO::clear();
 		p->blitBufferFlippedScaled();
 		SDL_GL_SwapWindow(p->threadData->window);
 		p->fpsLimiter.delay();

src/tilemap.cpp

@@ -607,7 +607,7 @@ struct TilemapPrivate
 		glState.clearColor.pushSet(Vec4());
 		glState.scissorTest.pushSet(false);
 
-		glClear(GL_COLOR_BUFFER_BIT);
+		FBO::clear();
 
 		glState.scissorTest.pop();
 		glState.clearColor.pop();

src/window.cpp

@@ -428,7 +428,7 @@ struct WindowPrivate
 		shader.setTranslation(Vec2i());
 
 		/* Clear texture */
-		glClear(GL_COLOR_BUFFER_BIT);
+		FBO::clear();
 
 		/* Repaint base */
 		windowskin->bindTex(shader);