Method bufferData

src/main/java/net/optifine/render/VboRegion.java:40–85

(ByteBuffer data, VboRange range)

    }

    public void bufferData(ByteBuffer data, VboRange range)
    {
        int i = range.getPosition();
        int j = range.getSize();
        int k = this.toVertex((long)data.limit());

        if (k <= 0)
        {
            if (i >= 0)
            {
                range.setPosition(-1);
                range.setSize(0);
                this.rangeList.remove(range.getNode());
                this.sizeUsed -= j;
            }
        }
        else
        {
            if (k > j)
            {
                range.setPosition(this.positionTop);
                range.setSize(k);
                this.positionTop += k;

                if (i >= 0)
                {
                    this.rangeList.remove(range.getNode());
                }

                this.rangeList.addLast(range.getNode());
            }

            range.setSize(k);
            this.sizeUsed += k - j;
            this.checkVboSize(range.getPositionNext());
            long l = this.toBytes(range.getPosition());
            this.bindBuffer();
            OpenGlHelper.glBufferSubData(OpenGlHelper.GL_ARRAY_BUFFER, l, data);
            this.unbindBuffer();

            if (this.positionTop > this.sizeUsed * 11 / 10)
            {
                this.compactRanges(1);
            }
        }
    }

    private void compactRanges(int countMax)
    {