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(VITA) Ugly blocking audio driver fix

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This commit is contained in:
Francisco José García García 2016-08-02 01:38:05 +02:00
parent 4c26b82531
commit 481763188c
1 changed files with 100 additions and 12 deletions
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112
audio/drivers/psp_audio.c
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@ -17,6 +17,7 @@
#include <stdint.h>
#include <malloc.h>
#include <stdio.h>
#ifdef VITA
#include <psp2/kernel/processmgr.h>
@ -34,14 +35,22 @@
typedef struct psp_audio
{
bool nonblocking;
uint32_t* buffer;
uint32_t* zeroBuffer;
SceUID thread;
int rate;
volatile bool running;
volatile uint16_t readPos;
volatile uint16_t writePos;
#ifdef VITA
char lock[32] __attribute__ ((aligned (8)));
char cond_lock[32] __attribute__ ((aligned (8)));
char cond[32] __attribute__ ((aligned (8)));
#endif
} psp_audio_t;
#define AUDIO_OUT_COUNT 512u
@ -55,6 +64,9 @@ typedef struct psp_audio
#define sceKernelGetThreadInfo sceKernelReferThreadRunStatus
#endif
int sceKernelLockLwMutex(void*, int, int);
int sceKernelWaitLwCond(void*, int);
static int audioMainLoop(SceSize args, void* argp)
{
psp_audio_t* psp = *((psp_audio_t**)argp);
@ -68,18 +80,37 @@ static int audioMainLoop(SceSize args, void* argp)
while (psp->running)
{
#ifdef VITA
//sys_event_queue_receive(id, &event, SYS_NO_TIMEOUT);
sceKernelLockLwMutex(&psp->lock, 1, 0);
uint16_t readPos = psp->readPos;
uint16_t readPos2 = psp->readPos;
bool cond = ((uint16_t)(psp->writePos - readPos) & AUDIO_BUFFER_SIZE_MASK)
< (AUDIO_OUT_COUNT * 2);
if (!cond)
{
readPos += AUDIO_OUT_COUNT;
readPos &= AUDIO_BUFFER_SIZE_MASK;
psp->readPos = readPos;
}
sceKernelUnlockLwMutex(&psp->lock, 1);
sceKernelSignalLwCond(&psp->cond);
sceAudioOutOutput(port,
cond ? (psp->zeroBuffer)
: (psp->buffer + readPos2));
#else
/* Get a non-volatile copy. */
uint16_t readPos = psp->readPos;
bool cond = ((uint16_t)(psp->writePos - readPos) & AUDIO_BUFFER_SIZE_MASK)
< (AUDIO_OUT_COUNT * 2);
#ifdef VITA
sceAudioOutOutput(port,
cond ? psp->zeroBuffer : (psp->buffer + readPos));
#else
sceAudioSRCOutputBlocking(PSP_AUDIO_VOLUME_MAX, cond ? (psp->zeroBuffer)
: (psp->buffer + readPos));
#endif
if (!cond)
{
@ -87,6 +118,9 @@ static int audioMainLoop(SceSize args, void* argp)
readPos &= AUDIO_BUFFER_SIZE_MASK;
psp->readPos = readPos;
}
#endif
}
#ifdef VITA
@ -109,11 +143,11 @@ static void *psp_audio_init(const char *device,
(void)device;
(void)latency;
/* Cache aligned, not necessary but helpful. */
psp->buffer = (uint32_t*)
memalign(64, AUDIO_BUFFER_SIZE * sizeof(uint32_t));
memset(psp->buffer, 0, AUDIO_BUFFER_SIZE * sizeof(uint32_t));
psp->zeroBuffer = (uint32_t*)
memalign(64, AUDIO_OUT_COUNT * sizeof(uint32_t));
memset(psp->zeroBuffer, 0, AUDIO_OUT_COUNT * sizeof(uint32_t));
@ -122,14 +156,18 @@ static void *psp_audio_init(const char *device,
psp->writePos = 0;
psp->rate = rate;
#if defined(VITA)
sceKernelCreateLwMutex(&psp->lock, "audio_get_lock", 0, 0, 0);
sceKernelCreateLwMutex(&psp->cond_lock, "audio_get_cond_lock", 0, 0, 0);
sceKernelCreateLwCond(&psp->cond, "audio_get_cond", 0, &psp->cond_lock, 0);
psp->thread = sceKernelCreateThread
("audioMainLoop", audioMainLoop, 0x10000100, 0x10000, 0, 0, NULL);
#else
psp->thread = sceKernelCreateThread
("audioMainLoop", audioMainLoop, 0x08, 0x10000, 0, NULL);
#endif
psp->nonblocking = false;
psp->nonblocking = false;
psp->running = true;
sceKernelStartThread(psp->thread, sizeof(psp_audio_t*), &psp);
@ -146,23 +184,61 @@ static void psp_audio_free(void *data)
psp->running = false;
#if defined(VITA)
sceKernelWaitThreadEnd(psp->thread, NULL, &timeout);
sceKernelDeleteLwMutex(&psp->lock);
sceKernelDeleteLwMutex(&psp->cond_lock);
sceKernelDeleteLwCond(&psp->cond);
#else
sceKernelWaitThreadEnd(psp->thread, &timeout);
#endif
sceKernelDeleteThread(psp->thread);
free(psp->buffer);
sceKernelDeleteThread(psp->thread);
free(psp->zeroBuffer);
free(psp);
}
static ssize_t psp_audio_write(void *data, const void *buf, size_t size)
{
uint16_t sampleCount;
psp_audio_t* psp = (psp_audio_t*)data;
uint16_t sampleCount;
uint16_t writePos = psp->writePos;
sampleCount= size / sizeof(uint32_t);
#ifdef VITA
if (psp->nonblocking)
{
if (AUDIO_BUFFER_SIZE - ((uint16_t)
(psp->writePos - psp->readPos) & AUDIO_BUFFER_SIZE_MASK) < size)
return 0;
}
while (AUDIO_BUFFER_SIZE - ((uint16_t)
(psp->writePos - psp->readPos) & AUDIO_BUFFER_SIZE_MASK) < size){
sceKernelWaitLwCond(&psp->cond, 0);
}
sceKernelLockLwMutex(&psp->lock, 1, 0);
if((writePos + sampleCount) > AUDIO_BUFFER_SIZE)
{
memcpy(psp->buffer + writePos, buf,
(AUDIO_BUFFER_SIZE - writePos) * sizeof(uint32_t));
memcpy(psp->buffer, (uint32_t*) buf +
(AUDIO_BUFFER_SIZE - writePos),
(writePos + sampleCount - AUDIO_BUFFER_SIZE) * sizeof(uint32_t));
}
else
memcpy(psp->buffer + writePos, buf, size);
writePos += sampleCount;
writePos &= AUDIO_BUFFER_SIZE_MASK;
psp->writePos = writePos;
sceKernelUnlockLwMutex(&psp->lock, 1);
return size;
#else
#if 0
if (psp->nonblocking)
@ -187,6 +263,7 @@ static ssize_t psp_audio_write(void *data, const void *buf, size_t size)
psp->writePos = writePos;
return sampleCount;
#endif
}
static bool psp_audio_alive(void *data)
@ -258,16 +335,27 @@ static bool psp_audio_use_float(void *data)
static size_t psp_write_avail(void *data)
{
#ifdef VITA
psp_audio_t* psp = (psp_audio_t*)data;
size_t val;
sceKernelLockLwMutex(&psp->lock, 1, 0);
val = AUDIO_BUFFER_SIZE - ((uint16_t)
(psp->writePos - psp->readPos) & AUDIO_BUFFER_SIZE_MASK);
sceKernelUnlockLwMutex(&psp->lock, 1);
return val;
#else
/* TODO */
psp_audio_t* psp = (psp_audio_t*)data;
return AUDIO_BUFFER_SIZE - ((uint16_t)
(psp->writePos - psp->readPos) & AUDIO_BUFFER_SIZE_MASK);
#endif
}
static size_t psp_buffer_size(void *data)
{
/* TODO */
return AUDIO_BUFFER_SIZE;
return AUDIO_BUFFER_SIZE /** sizeof(uint32_t)*/;
}
@ -288,5 +376,5 @@ audio_driver_t audio_psp = {
NULL,
NULL,
psp_write_avail,
psp_buffer_size,
psp_buffer_size
};