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extracted OSS code to sndout_oss_*, BTN->PBTN, refactoring

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@599 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2008-10-17 15:29:37 +00:00
parent 725d7f6c16
commit b3972d826f
21 changed files with 386 additions and 478 deletions
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69
linux/gp2x.c
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@ -9,15 +9,14 @@
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/soundcard.h>
#include <fcntl.h>
#include <errno.h>
#include "../gp2x/emu.h"
#include "../gp2x/gp2x.h"
#include "../gp2x/usbjoy.h"
#include "../gp2x/version.h"
#include "sndout_oss.h"
#include "usbjoy.h"
#include "log_io.h"
@ -25,7 +24,6 @@ void *gp2x_screen;
static int current_bpp = 8;
static int current_pal[256];
static unsigned long current_keys = 0;
static int sounddev = 0, mixerdev = 0;
static const char *verstring = "PicoDrive " VERSION;
// dummies
@ -184,13 +182,11 @@ void gp2x_init(void)
memset(gp2x_screen, 0, 320*240*2 + 320*2);
// snd
mixerdev = open("/dev/mixer", O_RDWR);
if (mixerdev == -1)
printf("open(\"/dev/mixer\") failed with %i\n", errno);
sndout_oss_init();
gtk_initf();
gp2x_usbjoy_init();
usbjoy_init();
printf("exitting init()\n"); fflush(stdout);
}
@ -198,9 +194,8 @@ void gp2x_init(void)
void gp2x_deinit(void)
{
free(gp2x_screen);
if (sounddev > 0) close(sounddev);
close(mixerdev);
gp2x_usbjoy_deinit();
sndout_oss_exit();
usbjoy_deinit();
}
/* video */
@ -304,54 +299,6 @@ void gp2x_pd_clone_buffer2(void)
memset(gp2x_screen, 0, 320*240*2);
}
/* sound */
static int s_oldrate = 0, s_oldbits = 0, s_oldstereo = 0;
void gp2x_start_sound(int rate, int bits, int stereo)
{
int frag = 0, bsize, buffers;
// if no settings change, we don't need to do anything
if (rate == s_oldrate && s_oldbits == bits && s_oldstereo == stereo) return;
if (sounddev > 0) close(sounddev);
sounddev = open("/dev/dsp", O_WRONLY|O_ASYNC);
if (sounddev == -1)
printf("open(\"/dev/dsp\") failed with %i\n", errno);
ioctl(sounddev, SNDCTL_DSP_SPEED, &rate);
ioctl(sounddev, SNDCTL_DSP_SETFMT, &bits);
ioctl(sounddev, SNDCTL_DSP_STEREO, &stereo);
// calculate buffer size
buffers = 16;
bsize = rate / 32;
if (rate > 22050) { bsize*=4; buffers*=2; } // 44k mode seems to be very demanding
while ((bsize>>=1)) frag++;
frag |= buffers<<16; // 16 buffers
ioctl(sounddev, SNDCTL_DSP_SETFRAGMENT, &frag);
printf("gp2x_set_sound: %i/%ibit/%s, %i buffers of %i bytes\n",
rate, bits, stereo?"stereo":"mono", frag>>16, 1<<(frag&0xffff));
s_oldrate = rate; s_oldbits = bits; s_oldstereo = stereo;
}
void gp2x_sound_write(void *buff, int len)
{
write(sounddev, buff, len);
}
void gp2x_sound_sync(void)
{
ioctl(sounddev, SOUND_PCM_SYNC, 0);
}
void gp2x_sound_volume(int l, int r)
{
l=l<0?0:l; l=l>255?255:l; r=r<0?0:r; r=r>255?255:r;
l<<=8; l|=r;
ioctl(mixerdev, SOUND_MIXER_WRITE_PCM, &l); /*SOUND_MIXER_WRITE_VOLUME*/
}
/* joy */
unsigned long gp2x_joystick_read(int allow_usb_joy)
{
@ -360,9 +307,9 @@ unsigned long gp2x_joystick_read(int allow_usb_joy)
if (allow_usb_joy && num_of_joys > 0) {
// check the usb joy as well..
gp2x_usbjoy_update();
usbjoy_update();
for (i = 0; i < num_of_joys; i++)
value |= gp2x_usbjoy_check(i);
value |= usbjoy_check(i);
}
return value;