view src/audio/nds/soundcommon.h @ 4165:3b8ac3d311a2 SDL-1.2

Hello. This patch provides basic support for video on the Sony PS3 Linux framebuffer. Scaling, format-conversion, and drawing is done from the SPEs, so there is little performance impact to PPE applications. This is by no means production quality code, but it is a very good start and a good example of how to use the PS3's hardware capabilities to accelerate video playback on the box. The driver has been verified to work with ffplay, mplayer and xine. This piece of software has been developed at the IBM R&D Lab in Boeblingen, Germany and is now returned to the community. Enjoy ! Signed-off-by: D.Herrendoerfer < d.herrendoerfer [at] de [dot] ibm [dot] com >
author Sam Lantinga <slouken@libsdl.org>
date Thu, 02 Apr 2009 04:06:55 +0000 (2009-04-02)
parents a1b03ba2fcd0
children
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

#ifndef __SOUNDCOMMON_H
#define __SOUNDCOMMON_H

#include <nds.h>

#define CLOCK (1 << 25)

#ifdef __cplusplus
extern "C" {
#endif

typedef enum
{
	NONE = 0,
	INIT = 1,
	MIX = 2,
	MIXING = 4,
	STOP = 8
}CommandType;

typedef enum
{
	FIFO_NONE = 0,
	UPDATEON_ARM9 = 1,
	MIXCOMPLETE_ONARM9 = 2,
}FifoType; 

typedef struct
{
	s8 *mixbuffer;//,*soundbuffer;
	u32 rate;
	u32 buffersize;
	u32 cmd;
	u8 channel,format;
	u32 soundcursor,numsamples;
	s32 prevtimer;
	s16 period;
}S_SoundSystem;

#define soundsystem ((S_SoundSystem*)((u32)(IPC)+sizeof(TransferRegion)))

#ifdef ARM9
extern void SoundSystemInit(u32 rate,u32 buffersize,u8 channel,u8 format);
extern void SoundStartMixer(void);
extern void SendCommandToArm7(u32 command);
#else
extern void SoundVBlankIrq(void);
extern void SoundSwapAndMix(void);
extern void SoundSetTimer(int period);
extern void SoundFifoHandler(void);
extern void SendCommandToArm9(u32 command);
#endif

#ifdef __cplusplus
}
#endif
#endif