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-rw-r--r--vcl/inc/opengl/BufferObject.hxx84
1 files changed, 84 insertions, 0 deletions
diff --git a/vcl/inc/opengl/BufferObject.hxx b/vcl/inc/opengl/BufferObject.hxx
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+++ b/vcl/inc/opengl/BufferObject.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#ifndef INCLUDED_VCL_INC_OPENGL_BUFFEROBJECT_H
+#define INCLUDED_VCL_INC_OPENGL_BUFFEROBJECT_H
+
+namespace vcl
+{
+
+template<typename TYPE, GLenum BUFFER_TYPE>
+class BufferObject
+{
+private:
+ GLuint mId;
+
+public:
+ BufferObject()
+ : mId(0)
+ {
+ glGenBuffers(1, &mId);
+ CHECK_GL_ERROR();
+ }
+
+ virtual ~BufferObject()
+ {
+ if (mId)
+ {
+ glDeleteBuffers(1, &mId);
+ CHECK_GL_ERROR();
+ mId = 0;
+ }
+ }
+
+ void bind()
+ {
+ if (mId)
+ {
+ glBindBuffer(BUFFER_TYPE, mId);
+ CHECK_GL_ERROR();
+ }
+ }
+
+ void unbind()
+ {
+ if (mId)
+ {
+ glBindBuffer(BUFFER_TYPE, 0);
+ CHECK_GL_ERROR();
+ }
+ }
+
+ void upload(const std::vector<TYPE>& rData)
+ {
+ if (mId)
+ {
+ bind();
+ glBufferData(BUFFER_TYPE, sizeof(TYPE) * rData.size(), rData.data(), GL_STATIC_DRAW);
+ CHECK_GL_ERROR();
+ }
+ }
+
+};
+
+template<typename TYPE>
+class VertexBufferObject final : public BufferObject<TYPE, GL_ARRAY_BUFFER>
+{
+};
+
+class IndexBufferObject final : public BufferObject<GLuint, GL_ELEMENT_ARRAY_BUFFER>
+{
+};
+
+} // end vcl
+
+#endif // INCLUDED_VCL_INC_OPENGL_BUFFEROBJECT_H
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */