kolibrios/contrib/media/fplay/utils.c
Sergey Semyonov (Serge) 838b368713 Fplay:cleanup & f77 synchronization
git-svn-id: svn://kolibrios.org@5603 a494cfbc-eb01-0410-851d-a64ba20cac60
2015-07-23 10:13:34 +00:00

173 lines
3.3 KiB
C

#include <stdint.h>
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libswscale/swscale.h>
#include <stdio.h>
#include <fcntl.h>
#include "winlib/winlib.h"
#include "fplay.h"
extern uint32_t hw2d ;
#if 0
#define FUTEX_INIT 0
#define FUTEX_DESTROY 1
#define FUTEX_WAIT 2
#define FUTEX_WAKE 3
int __fastcall mutex_init(mutex_t *mutex)
{
unsigned int handle;
mutex->lock = 0;
asm volatile(
"int $0x40\t"
:"=a"(handle)
:"a"(77),"b"(FUTEX_INIT),"c"(mutex));
mutex->handle = handle;
return handle;
};
int __fastcall mutex_destroy(mutex_t *mutex)
{
int retval;
asm volatile(
"int $0x40\t"
:"=a"(retval)
:"a"(77),"b"(FUTEX_DESTROY),"c"(mutex->handle));
return retval;
};
#define exchange_acquire(ptr, new) \
__atomic_exchange_4((ptr), (new), __ATOMIC_ACQUIRE)
#define exchange_release(ptr, new) \
__atomic_exchange_4((ptr), (new), __ATOMIC_RELEASE)
void __fastcall mutex_lock(mutex_t *mutex)
{
int tmp;
if( __sync_fetch_and_add(&mutex->lock, 1) == 0)
return;
while (exchange_acquire (&mutex->lock, 2) != 0)
{
asm volatile(
"int $0x40\t"
:"=a"(tmp)
:"a"(77),"b"(FUTEX_WAIT),
"c"(mutex->handle),"d"(2),"S"(0));
}
}
int __fastcall mutex_trylock (mutex_t *mutex)
{
int zero = 0;
return __atomic_compare_exchange_4(&mutex->lock, &zero, 1,0,__ATOMIC_ACQUIRE,__ATOMIC_RELAXED);
}
void __fastcall mutex_unlock(mutex_t *mutex)
{
int prev;
prev = exchange_release (&mutex->lock, 0);
if (prev != 1)
{
asm volatile(
"int $0x40\t"
:"=a"(prev)
:"a"(77),"b"(FUTEX_WAKE),
"c"(mutex->handle),"d"(1));
};
};
#endif
int64_t _lseeki64(int fd, int64_t offset, int origin )
{
int off = offset;
return lseek(fd, off, origin);
}
int put_packet(queue_t *q, AVPacket *pkt)
{
AVPacketList *q_pkt;
/* duplicate the packet */
// if (av_dup_packet(pkt) < 0)
// return -1;
q_pkt = av_malloc(sizeof(AVPacketList));
if (!q_pkt)
return -1;
q_pkt->pkt = *pkt;
q_pkt->next = NULL;
mutex_lock(&q->lock);
if (!q->last_pkt)
q->first_pkt = q_pkt;
else
q->last_pkt->next = q_pkt;
q->last_pkt = q_pkt;
q->size += q_pkt->pkt.size + sizeof(*q_pkt);
q->count++;
mutex_unlock(&q->lock);
return 0;
}
int get_packet(queue_t *q, AVPacket *pkt)
{
AVPacketList *q_pkt;
int ret = 0;
mutex_lock(&q->lock);
q_pkt = q->first_pkt;
if (q_pkt)
{
q->first_pkt = q_pkt->next;
if (!q->first_pkt)
q->last_pkt = NULL;
q->count--;
q->size -= q_pkt->pkt.size + sizeof(*q_pkt);
*pkt = q_pkt->pkt;
av_free(q_pkt);
ret = 1;
};
mutex_unlock(&q->lock);
return ret;
}
void blit_raw(ctx_t *ctx, void *raw, int x, int y, int w, int h, int pitch)
{
int *dst;
int *src = raw;
int i, j;
dst = ctx->pixmap_data;
dst+= y * ctx->pixmap_pitch/4 + x;
for(i=0; i < h; i++)
{
for(j = 0; j < w; j++)
dst[j] = src[j];
dst+= ctx->pixmap_pitch/4;
src+= pitch/4;
};
};