GRAPHICS: Add updateGLBound method to VertexBuffer

xoreos · Nov 17, 2018 · 679e4d9 · 679e4d9
1 parent 5ce37f9
commit 679e4d9
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diff --git a/src/graphics/vertexbuffer.cpp b/src/graphics/vertexbuffer.cpp
@@ -268,6 +268,10 @@ void VertexBuffer::updateGL() {
 	}
 }
 
+void VertexBuffer::updateGLBound() const {
+	glBufferSubData(GL_ARRAY_BUFFER, 0, _count * _size, _data);
+}
+
 void VertexBuffer::destroyGL() {
 	if (_vbo != 0) {
 		glDeleteBuffers(1, &_vbo);

diff --git a/src/graphics/vertexbuffer.h b/src/graphics/vertexbuffer.h
@@ -121,6 +121,9 @@ class VertexBuffer {
 	/** Update existing GL buffer object. Try not to call while rendering. */
 	void updateGL();
 
+	/** Update an existing GL buffer object, assuming it is already bound. */
+	void updateGLBound() const;
+
 	/** Clear (destroy) GL resources associated with the buffer. */
 	void destroyGL();