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Diffstat (limited to 'apps/plugins/sdl/src/audio/mint/SDL_mintaudio.c')
-rw-r--r--apps/plugins/sdl/src/audio/mint/SDL_mintaudio.c215
1 files changed, 0 insertions, 215 deletions
diff --git a/apps/plugins/sdl/src/audio/mint/SDL_mintaudio.c b/apps/plugins/sdl/src/audio/mint/SDL_mintaudio.c
deleted file mode 100644
index 46ba690c3e..0000000000
--- a/apps/plugins/sdl/src/audio/mint/SDL_mintaudio.c
+++ /dev/null
@@ -1,215 +0,0 @@
-/*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997-2012 Sam Lantinga
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- Sam Lantinga
- slouken@libsdl.org
-*/
-#include "SDL_config.h"
-
-/*
- Audio interrupt variables and callback function
-
- Patrice Mandin
-*/
-
-#include <unistd.h>
-
-#include <mint/osbind.h>
-#include <mint/falcon.h>
-#include <mint/mintbind.h>
-#include <mint/cookie.h>
-
-#include "SDL_audio.h"
-#include "SDL_mintaudio.h"
-#include "SDL_mintaudio_stfa.h"
-
-/* The audio device */
-
-SDL_AudioDevice *SDL_MintAudio_device;
-Uint8 *SDL_MintAudio_audiobuf[2]; /* Pointers to buffers */
-unsigned long SDL_MintAudio_audiosize; /* Length of audio buffer=spec->size */
-volatile unsigned short SDL_MintAudio_numbuf; /* Buffer to play */
-volatile unsigned short SDL_MintAudio_mutex;
-volatile unsigned long SDL_MintAudio_clocktics;
-cookie_stfa_t *SDL_MintAudio_stfa;
-unsigned short SDL_MintAudio_hasfpu;
-
-/* MiNT thread variables */
-SDL_bool SDL_MintAudio_mint_present;
-SDL_bool SDL_MintAudio_quit_thread;
-SDL_bool SDL_MintAudio_thread_finished;
-long SDL_MintAudio_thread_pid;
-
-/* The callback function, called by each driver whenever needed */
-
-void SDL_MintAudio_Callback(void)
-{
- Uint8 *buffer;
- SDL_AudioDevice *audio = SDL_MintAudio_device;
-
- buffer = SDL_MintAudio_audiobuf[SDL_MintAudio_numbuf];
- SDL_memset(buffer, audio->spec.silence, audio->spec.size);
-
- if (audio->paused)
- return;
-
- if (audio->convert.needed) {
- int silence;
-
- if ( audio->convert.src_format == AUDIO_U8 ) {
- silence = 0x80;
- } else {
- silence = 0;
- }
- SDL_memset(audio->convert.buf, silence, audio->convert.len);
- audio->spec.callback(audio->spec.userdata,
- (Uint8 *)audio->convert.buf,audio->convert.len);
- SDL_ConvertAudio(&audio->convert);
- SDL_memcpy(buffer, audio->convert.buf, audio->convert.len_cvt);
- } else {
- audio->spec.callback(audio->spec.userdata, buffer, audio->spec.size);
- }
-}
-
-/* Add a new frequency/clock/predivisor to the current list */
-void SDL_MintAudio_AddFrequency(_THIS, Uint32 frequency, Uint32 clock,
- Uint32 prediv, int gpio_bits)
-{
- int i, p;
-
- if (MINTAUDIO_freqcount==MINTAUDIO_maxfreqs) {
- return;
- }
-
- /* Search where to insert the frequency (highest first) */
- for (p=0; p<MINTAUDIO_freqcount; p++) {
- if (frequency > MINTAUDIO_frequencies[p].frequency) {
- break;
- }
- }
-
- /* Put all following ones farer */
- if (MINTAUDIO_freqcount>0) {
- for (i=MINTAUDIO_freqcount; i>p; i--) {
- SDL_memcpy(&MINTAUDIO_frequencies[i], &MINTAUDIO_frequencies[i-1], sizeof(mint_frequency_t));
- }
- }
-
- /* And insert new one */
- MINTAUDIO_frequencies[p].frequency = frequency;
- MINTAUDIO_frequencies[p].masterclock = clock;
- MINTAUDIO_frequencies[p].predivisor = prediv;
- MINTAUDIO_frequencies[p].gpio_bits = gpio_bits;
-
- MINTAUDIO_freqcount++;
-}
-
-/* Search for the nearest frequency */
-int SDL_MintAudio_SearchFrequency(_THIS, int desired_freq)
-{
- int i;
-
- /* Only 1 freq ? */
- if (MINTAUDIO_freqcount==1) {
- return 0;
- }
-
- /* Check the array */
- for (i=0; i<MINTAUDIO_freqcount; i++) {
- if (desired_freq >= ((MINTAUDIO_frequencies[i].frequency+
- MINTAUDIO_frequencies[i+1].frequency)>>1)) {
- return i;
- }
- }
-
- /* Not in the array, give the latest */
- return MINTAUDIO_freqcount-1;
-}
-
-/* Check if FPU is present */
-void SDL_MintAudio_CheckFpu(void)
-{
- long cookie_fpu;
-
- SDL_MintAudio_hasfpu = 0;
- if (Getcookie(C__FPU, &cookie_fpu) != C_FOUND) {
- return;
- }
- switch ((cookie_fpu>>16)&0xfffe) {
- case 2:
- case 4:
- case 6:
- case 8:
- case 16:
- SDL_MintAudio_hasfpu = 1;
- break;
- }
-}
-
-/* The thread function, used under MiNT with xbios */
-int SDL_MintAudio_Thread(long param)
-{
- SndBufPtr pointers;
- SDL_bool buffers_filled[2] = {SDL_FALSE, SDL_FALSE};
-
- SDL_MintAudio_thread_finished = SDL_FALSE;
- while (!SDL_MintAudio_quit_thread) {
- if (Buffptr(&pointers)!=0)
- continue;
-
- if (( (unsigned long)pointers.play>=(unsigned long)SDL_MintAudio_audiobuf[0])
- && ( (unsigned long)pointers.play<=(unsigned long)SDL_MintAudio_audiobuf[1]))
- {
- /* DMA is reading buffer #0, setup buffer #1 if not already done */
- if (!buffers_filled[1]) {
- SDL_MintAudio_numbuf = 1;
- SDL_MintAudio_Callback();
- Setbuffer(0, SDL_MintAudio_audiobuf[1], SDL_MintAudio_audiobuf[1] + SDL_MintAudio_audiosize);
- buffers_filled[1]=SDL_TRUE;
- buffers_filled[0]=SDL_FALSE;
- }
- } else {
- /* DMA is reading buffer #1, setup buffer #0 if not already done */
- if (!buffers_filled[0]) {
- SDL_MintAudio_numbuf = 0;
- SDL_MintAudio_Callback();
- Setbuffer(0, SDL_MintAudio_audiobuf[0], SDL_MintAudio_audiobuf[0] + SDL_MintAudio_audiosize);
- buffers_filled[0]=SDL_TRUE;
- buffers_filled[1]=SDL_FALSE;
- }
- }
-
- usleep(100);
- }
- SDL_MintAudio_thread_finished = SDL_TRUE;
- return 0;
-}
-
-void SDL_MintAudio_WaitThread(void)
-{
- if (!SDL_MintAudio_mint_present)
- return;
-
- if (SDL_MintAudio_thread_finished)
- return;
-
- SDL_MintAudio_quit_thread = SDL_TRUE;
- while (!SDL_MintAudio_thread_finished) {
- Syield();
- }
-}