From e74f889bc59b7d527b338c04169595cbd16dc3c2 Mon Sep 17 00:00:00 2001
From: Jonas Kulla <Nyocurio@gmail.com>
Date: Fri, 16 May 2014 21:37:28 +0200
Subject: [PATCH] Quad: Don't discard VBO on each update

This never yielded any traceable performance gains.
I also apparently forgot to unbind the buffer after
updating.
---
 src/quad.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/quad.h b/src/quad.h
index 188a829..9f64f21 100644
--- a/src/quad.h
+++ b/src/quad.h
@@ -112,6 +112,8 @@ struct Quad
 		VBO::bind(vbo);
 		shState->bindQuadIBO();
 
+		VBO::allocEmpty(sizeof(Vertex[4]), GL_DYNAMIC_DRAW);
+
 		glEnableVertexAttribArray(Shader::Color);
 		glEnableVertexAttribArray(Shader::Position);
 		glEnableVertexAttribArray(Shader::TexCoord);
@@ -136,8 +138,8 @@ struct Quad
 	void updateBuffer()
 	{
 		VBO::bind(vbo);
-		VBO::allocEmpty(sizeof(Vertex) * 4, GL_DYNAMIC_DRAW);
-		VBO::uploadData(sizeof(Vertex) * 4, vert, GL_DYNAMIC_DRAW);
+		VBO::uploadSubData(0, sizeof(Vertex[4]), vert);
+		VBO::unbind();
 	}
 
 	void setPosRect(const FloatRect &r)