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Diffstat (limited to 'distrib/sdl-1.2.12/src/audio/amigaos/SDL_ahiaudio.c')
-rw-r--r--distrib/sdl-1.2.12/src/audio/amigaos/SDL_ahiaudio.c337
1 files changed, 0 insertions, 337 deletions
diff --git a/distrib/sdl-1.2.12/src/audio/amigaos/SDL_ahiaudio.c b/distrib/sdl-1.2.12/src/audio/amigaos/SDL_ahiaudio.c
deleted file mode 100644
index c9a4c1a..0000000
--- a/distrib/sdl-1.2.12/src/audio/amigaos/SDL_ahiaudio.c
+++ /dev/null
@@ -1,337 +0,0 @@
-/*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997-2006 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"
-
-/* Allow access to a raw mixing buffer (for AmigaOS) */
-
-#include "SDL_audio.h"
-#include "../SDL_audio_c.h"
-#include "SDL_ahiaudio.h"
-
-/* Audio driver functions */
-static int AHI_OpenAudio(_THIS, SDL_AudioSpec *spec);
-static void AHI_WaitAudio(_THIS);
-static void AHI_PlayAudio(_THIS);
-static Uint8 *AHI_GetAudioBuf(_THIS);
-static void AHI_CloseAudio(_THIS);
-
-#ifndef __SASC
- #define mymalloc(x) AllocVec(x,MEMF_PUBLIC)
- #define myfree FreeVec
-#else
- #define mymalloc malloc
- #define myfree free
-#endif
-
-/* Audio driver bootstrap functions */
-
-static int Audio_Available(void)
-{
- int ok=0;
- struct MsgPort *p;
- struct AHIRequest *req;
-
- if(p=CreateMsgPort())
- {
- if(req=(struct AHIRequest *)CreateIORequest(p,sizeof(struct AHIRequest)))
- {
- req->ahir_Version=4;
-
- if(!OpenDevice(AHINAME,0,(struct IORequest *)req,NULL))
- {
- D(bug("AHI available.\n"));
- ok=1;
- CloseDevice((struct IORequest *)req);
- }
- DeleteIORequest((struct IORequest *)req);
- }
- DeleteMsgPort(p);
- }
-
- D(if(!ok) bug("AHI not available\n"));
- return ok;
-}
-
-static void Audio_DeleteDevice(SDL_AudioDevice *device)
-{
- SDL_free(device->hidden);
- SDL_free(device);
-}
-
-static SDL_AudioDevice *Audio_CreateDevice(int devindex)
-{
- SDL_AudioDevice *this;
-
-#ifndef NO_AMIGADEBUG
- D(bug("AHI created...\n"));
-#endif
-
- /* Initialize all variables that we clean on shutdown */
- this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice));
- if ( this ) {
- SDL_memset(this, 0, (sizeof *this));
- this->hidden = (struct SDL_PrivateAudioData *)
- SDL_malloc((sizeof *this->hidden));
- }
- if ( (this == NULL) || (this->hidden == NULL) ) {
- SDL_OutOfMemory();
- if ( this ) {
- SDL_free(this);
- }
- return(0);
- }
- SDL_memset(this->hidden, 0, (sizeof *this->hidden));
-
- /* Set the function pointers */
- this->OpenAudio = AHI_OpenAudio;
- this->WaitAudio = AHI_WaitAudio;
- this->PlayAudio = AHI_PlayAudio;
- this->GetAudioBuf = AHI_GetAudioBuf;
- this->CloseAudio = AHI_CloseAudio;
-
- this->free = Audio_DeleteDevice;
-
- return this;
-}
-
-AudioBootStrap AHI_bootstrap = {
- "AHI", Audio_Available, Audio_CreateDevice
-};
-
-
-void static AHI_WaitAudio(_THIS)
-{
- if(!CheckIO((struct IORequest *)audio_req[current_buffer]))
- {
- WaitIO((struct IORequest *)audio_req[current_buffer]);
-// AbortIO((struct IORequest *)audio_req[current_buffer]);
- }
-}
-
-static void AHI_PlayAudio(_THIS)
-{
- if(playing>1)
- WaitIO((struct IORequest *)audio_req[current_buffer]);
-
- /* Write the audio data out */
- audio_req[current_buffer] -> ahir_Std. io_Message.mn_Node.ln_Pri = 60;
- audio_req[current_buffer] -> ahir_Std. io_Data = mixbuf[current_buffer];
- audio_req[current_buffer] -> ahir_Std. io_Length = this->hidden->size;
- audio_req[current_buffer] -> ahir_Std. io_Offset = 0;
- audio_req[current_buffer] -> ahir_Std . io_Command = CMD_WRITE;
- audio_req[current_buffer] -> ahir_Frequency = this->hidden->freq;
- audio_req[current_buffer] -> ahir_Volume = 0x10000;
- audio_req[current_buffer] -> ahir_Type = this->hidden->type;
- audio_req[current_buffer] -> ahir_Position = 0x8000;
- audio_req[current_buffer] -> ahir_Link = (playing>0 ? audio_req[current_buffer^1] : NULL);
-
- SendIO((struct IORequest *)audio_req[current_buffer]);
- current_buffer^=1;
-
- playing++;
-}
-
-static Uint8 *AHI_GetAudioBuf(_THIS)
-{
- return(mixbuf[current_buffer]);
-}
-
-static void AHI_CloseAudio(_THIS)
-{
- D(bug("Closing audio...\n"));
-
- playing=0;
-
- if(audio_req[0])
- {
- if(audio_req[1])
- {
- D(bug("Break req[1]...\n"));
-
- AbortIO((struct IORequest *)audio_req[1]);
- WaitIO((struct IORequest *)audio_req[1]);
- }
-
- D(bug("Break req[0]...\n"));
-
- AbortIO((struct IORequest *)audio_req[0]);
- WaitIO((struct IORequest *)audio_req[0]);
-
- if(audio_req[1])
- {
- D(bug("Break AGAIN req[1]...\n"));
- AbortIO((struct IORequest *)audio_req[1]);
- WaitIO((struct IORequest *)audio_req[1]);
- }
-// Double abort to be sure to break the dbuffering process.
-
- SDL_Delay(200);
-
- D(bug("Reqs breaked, closing device...\n"));
- CloseDevice((struct IORequest *)audio_req[0]);
- D(bug("Device closed, freeing memory...\n"));
- myfree(audio_req[1]);
- D(bug("Memory freed, deleting IOReq...\n"));
- DeleteIORequest((struct IORequest *)audio_req[0]);
- audio_req[0]=audio_req[1]=NULL;
- }
-
- D(bug("Freeing mixbuf[0]...\n"));
- if ( mixbuf[0] != NULL ) {
- myfree(mixbuf[0]);
-// SDL_FreeAudioMem(mixbuf[0]);
- mixbuf[0] = NULL;
- }
-
- D(bug("Freeing mixbuf[1]...\n"));
- if ( mixbuf[1] != NULL ) {
- myfree(mixbuf[1]);
-// SDL_FreeAudioMem(mixbuf[1]);
- mixbuf[1] = NULL;
- }
-
- D(bug("Freeing audio_port...\n"));
-
- if ( audio_port != NULL ) {
- DeleteMsgPort(audio_port);
- audio_port = NULL;
- }
- D(bug("...done!\n"));
-}
-
-static int AHI_OpenAudio(_THIS, SDL_AudioSpec *spec)
-{
-// int width;
-
- D(bug("AHI opening...\n"));
-
- /* Determine the audio parameters from the AudioSpec */
- switch ( spec->format & 0xFF ) {
-
- case 8: { /* Signed 8 bit audio data */
- D(bug("Samples a 8 bit...\n"));
- spec->format = AUDIO_S8;
- this->hidden->bytespersample=1;
- if(spec->channels<2)
- this->hidden->type = AHIST_M8S;
- else
- this->hidden->type = AHIST_S8S;
- }
- break;
-
- case 16: { /* Signed 16 bit audio data */
- D(bug("Samples a 16 bit...\n"));
- spec->format = AUDIO_S16MSB;
- this->hidden->bytespersample=2;
- if(spec->channels<2)
- this->hidden->type = AHIST_M16S;
- else
- this->hidden->type = AHIST_S16S;
- }
- break;
-
- default: {
- SDL_SetError("Unsupported audio format");
- return(-1);
- }
- }
-
- if(spec->channels!=1 && spec->channels!=2)
- {
- D(bug("Wrong channel number!\n"));
- SDL_SetError("Channel number non supported");
- return -1;
- }
-
- D(bug("Before CalculateAudioSpec\n"));
- /* Update the fragment size as size in bytes */
- SDL_CalculateAudioSpec(spec);
-
- D(bug("Before CreateMsgPort\n"));
-
- if(!(audio_port=CreateMsgPort()))
- {
- SDL_SetError("Unable to create a MsgPort");
- return -1;
- }
-
- D(bug("Before CreateIORequest\n"));
-
- if(!(audio_req[0]=(struct AHIRequest *)CreateIORequest(audio_port,sizeof(struct AHIRequest))))
- {
- SDL_SetError("Unable to create an AHIRequest");
- DeleteMsgPort(audio_port);
- return -1;
- }
-
- audio_req[0]->ahir_Version = 4;
-
- if(OpenDevice(AHINAME,0,(struct IORequest *)audio_req[0],NULL))
- {
- SDL_SetError("Unable to open AHI device!\n");
- DeleteIORequest((struct IORequest *)audio_req[0]);
- DeleteMsgPort(audio_port);
- return -1;
- }
-
- D(bug("AFTER opendevice\n"));
-
- /* Set output frequency and size */
- this->hidden->freq = spec->freq;
- this->hidden->size = spec->size;
-
- D(bug("Before buffer allocation\n"));
-
- /* Allocate mixing buffer */
- mixbuf[0] = (Uint8 *)mymalloc(spec->size);
- mixbuf[1] = (Uint8 *)mymalloc(spec->size);
-
- D(bug("Before audio_req allocation\n"));
-
- if(!(audio_req[1]=mymalloc(sizeof(struct AHIRequest))))
- {
- SDL_OutOfMemory();
- return(-1);
- }
-
- D(bug("Before audio_req memcpy\n"));
-
- SDL_memcpy(audio_req[1],audio_req[0],sizeof(struct AHIRequest));
-
- if ( mixbuf[0] == NULL || mixbuf[1] == NULL ) {
- SDL_OutOfMemory();
- return(-1);
- }
-
- D(bug("Before mixbuf memset\n"));
-
- SDL_memset(mixbuf[0], spec->silence, spec->size);
- SDL_memset(mixbuf[1], spec->silence, spec->size);
-
- current_buffer=0;
- playing=0;
-
- D(bug("AHI opened: freq:%ld mixbuf:%lx/%lx buflen:%ld bits:%ld channels:%ld\n",spec->freq,mixbuf[0],mixbuf[1],spec->size,this->hidden->bytespersample*8,spec->channels));
-
- /* We're ready to rock and roll. :-) */
- return(0);
-}
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