From 7c9c176c90f54ba738ae11c90099b6ad29b70cc0 Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Thu, 26 Jun 2014 12:49:40 -0400
Subject: [PATCH] add GLBuffer class

---
 src/gui/GLBuffer.cc | 30 ++++++++++++++++++++++++++++++
 src/gui/GLBuffer.h  | 24 ++++++++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 src/gui/GLBuffer.cc
 create mode 100644 src/gui/GLBuffer.h

diff --git a/src/gui/GLBuffer.cc b/src/gui/GLBuffer.cc
new file mode 100644
index 0000000..0589d03
--- /dev/null
+++ b/src/gui/GLBuffer.cc
@@ -0,0 +1,30 @@
+#include "GLBuffer.h"
+
+namespace jes
+{
+    GLBuffer::GLBuffer()
+    {
+        m_id = 0;
+    }
+
+    GLBuffer::~GLBuffer()
+    {
+        if (m_id > 0)
+        {
+            glDeleteBuffers(1, &m_id);
+        }
+    }
+
+    bool GLBuffer::create(GLenum target, GLenum usage, const void *ptr, size_t sz)
+    {
+        m_target = target;
+        glGenBuffers(1, &m_id);
+        if (m_id > 0)
+        {
+            bind();
+            glBufferData(target, sz, ptr, usage);
+            return true;
+        }
+        return false;
+    }
+}
diff --git a/src/gui/GLBuffer.h b/src/gui/GLBuffer.h
new file mode 100644
index 0000000..ea91f8d
--- /dev/null
+++ b/src/gui/GLBuffer.h
@@ -0,0 +1,24 @@
+#ifndef GLBUFFER_H
+#define GLBUFFER_H
+
+#include "gl3w.h"
+#include "jes.h"
+
+namespace jes
+{
+    class GLBuffer
+    {
+        public:
+            GLBuffer();
+            ~GLBuffer();
+            bool create(GLenum target, GLenum usage, const void *ptr, size_t sz);
+            GLuint get_id() { return m_id; }
+            void bind() { glBindBuffer(m_target, m_id); }
+        protected:
+            GLuint m_id;
+            GLenum m_target;
+    };
+    typedef Ref<GLBuffer> GLBufferRef;
+}
+
+#endif