50efc3b8c7
- it works only on x86 with gcc2.95+
- uses the GCC function atribute "regparm(n)" to declare that certain
functions use the register calling convention
- performance improvement is about 6%
65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id: cdrom.h,v 1.12 2003-03-02 23:59:10 cbothamy Exp $
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2002 MandrakeSoft S.A.
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//
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// MandrakeSoft S.A.
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// 43, rue d'Aboukir
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// 75002 Paris - France
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// http://www.linux-mandrake.com/
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// http://www.mandrakesoft.com/
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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// Header file for low-level OS specific CDROM emulation
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class cdrom_interface : public logfunctions {
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public:
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cdrom_interface(char *dev);
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~cdrom_interface(void);
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void init(void);
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// Load CD-ROM. Returns false if CD is not ready.
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bx_bool insert_cdrom(char *dev = NULL);
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// Logically eject the CD.
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void eject_cdrom();
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// Read CD TOC. Returns false if start track is out of bounds.
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bx_bool read_toc(uint8* buf, int* length, bx_bool msf, int start_track);
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// Return CD-ROM capacity (in 2048 byte frames)
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uint32 capacity();
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// Read a single block from the CD
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void read_block(uint8* buf, int lba) BX_CPP_AttrRegparmN(2);
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private:
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int fd;
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char *path;
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int using_file;
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#ifdef WIN32
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HANDLE hFile;
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int hid;
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int tid;
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int lun;
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#endif
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};
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