int crPackCanHoldBuffer( const CRPackBuffer *src )
{
const int num_data = crPackNumData(src);
const int num_opcode = crPackNumOpcodes(src);
int res;
CR_GET_PACKER_CONTEXT(pc);
CR_LOCK_PACKER_CONTEXT(pc);
res = crPackCanHoldOpcode( pc, num_opcode, num_data );
CR_UNLOCK_PACKER_CONTEXT(pc);
return res;
}
void crPackAppendBuffer( const CRPackBuffer *src )
{
CR_GET_PACKER_CONTEXT(pc);
const int num_data = crPackNumData(src);
const int num_opcode = crPackNumOpcodes(src);
CRASSERT(num_data >= 0);
CRASSERT(num_opcode >= 0);
CR_LOCK_PACKER_CONTEXT(pc);
/* don't append onto ourself! */
CRASSERT(pc->currentBuffer);
CRASSERT(pc->currentBuffer != src);
if (!crPackCanHoldBuffer(src))
{
if (src->holds_BeginEnd)
{
crWarning( "crPackAppendBuffer: overflowed the destination!" );
CR_UNLOCK_PACKER_CONTEXT(pc);
return;
}
else
{
crError( "crPackAppendBuffer: overflowed the destination!" );
CR_UNLOCK_PACKER_CONTEXT(pc);
}
}
/* Copy the buffer data/operands which are at the head of the buffer */
crMemcpy( pc->buffer.data_current, src->data_start, num_data );
pc->buffer.data_current += num_data;
/* Copy the buffer opcodes which are at the tail of the buffer */
CRASSERT( pc->buffer.opcode_current - num_opcode >= pc->buffer.opcode_end );
crMemcpy( pc->buffer.opcode_current + 1 - num_opcode, src->opcode_current + 1,
num_opcode );
pc->buffer.opcode_current -= num_opcode;
pc->buffer.holds_BeginEnd |= src->holds_BeginEnd;
pc->buffer.in_BeginEnd = src->in_BeginEnd;
pc->buffer.holds_List |= src->holds_List;
CR_UNLOCK_PACKER_CONTEXT(pc);
}
void
crPackAppendBoundedBuffer( const CRPackBuffer *src, const CRrecti *bounds )
{
CR_GET_PACKER_CONTEXT(pc);
const GLbyte *payload = (const GLbyte *) src->opcode_current + 1;
const int num_opcodes = crPackNumOpcodes(src);
const int length = src->data_current - src->opcode_current - 1;
CRASSERT(pc);
CR_LOCK_PACKER_CONTEXT(pc);
CRASSERT(pc->currentBuffer);
CRASSERT(pc->currentBuffer != src);
/*
* payload points to the block of opcodes immediately followed by operands.
*/
if ( !crPackCanHoldBoundedBuffer( src ) )
{
if (src->holds_BeginEnd)
{
crWarning( "crPackAppendBoundedBuffer: overflowed the destination!" );
CR_UNLOCK_PACKER_CONTEXT(pc);
return;
}
else
{
crError( "crPackAppendBoundedBuffer: overflowed the destination!" );
CR_UNLOCK_PACKER_CONTEXT(pc);
}
}
if (pc->swapping)
crPackBoundsInfoCRSWAP( bounds, payload, length, num_opcodes );
else
crPackBoundsInfoCR( bounds, payload, length, num_opcodes );
pc->buffer.holds_BeginEnd |= src->holds_BeginEnd;
pc->buffer.in_BeginEnd = src->in_BeginEnd;
pc->buffer.holds_List |= src->holds_List;
CR_UNLOCK_PACKER_CONTEXT(pc);
}
void PACK_APIENTRY crPackBoundsInfoCR( const CRrecti *bounds, const GLbyte *payload, GLint len, GLint num_opcodes )
{
CR_GET_PACKER_CONTEXT(pc);
/* Don't get the buffered_ptr here because we've already
* verified that there's enough space for everything. */
unsigned char *data_ptr;
int len_aligned, total_len;
CR_LOCK_PACKER_CONTEXT(pc);
data_ptr = pc->buffer.data_current;
len_aligned = ( len + 0x3 ) & ~0x3;
total_len = 24 + len_aligned;
WRITE_DATA( 0, int, total_len );
WRITE_DATA( 4, int, bounds->x1 );
WRITE_DATA( 8, int, bounds->y1 );
WRITE_DATA( 12, int, bounds->x2 );
WRITE_DATA( 16, int, bounds->y2 );
WRITE_DATA( 20, int, num_opcodes );
/* skip the BOUNDSINFO */
data_ptr += 24;
/* put in padding opcodes (deliberately bogus) */
switch ( len_aligned - len )
{
case 3: *data_ptr++ = 0xff; /* FALLTHROUGH */
case 2: *data_ptr++ = 0xff; /* FALLTHROUGH */
case 1: *data_ptr++ = 0xff; /* FALLTHROUGH */
default: break;
}
crMemcpy( data_ptr, payload, len );
WRITE_OPCODE( pc, CR_BOUNDSINFOCR_OPCODE );
pc->buffer.data_current += 24 + len_aligned;
CR_UNLOCK_PACKER_CONTEXT(pc);
}
/*
* Allocate space for a command that might be very large, such as
* glTexImage2D or glBufferDataARB call.
* The command buffer _MUST_ then be transmitted by calling crHugePacket.
*/
void *crPackAlloc( unsigned int size )
{
CR_GET_PACKER_CONTEXT(pc);
unsigned char *data_ptr;
/* include space for the length and make the payload word-aligned */
size = ( size + sizeof(unsigned int) + 0x3 ) & ~0x3;
CR_LOCK_PACKER_CONTEXT(pc);
if ( crPackCanHoldOpcode( pc, 1, size ) )
{
/* we can just put it in the current buffer */
CR_GET_BUFFERED_POINTER_NOLOCK(pc, size ); /* NOTE: this sets data_ptr */
}
else
{
/* Okay, it didn't fit. Maybe it will after we flush. */
CR_UNLOCK_PACKER_CONTEXT(pc);
pc->Flush( pc->flush_arg );
CR_LOCK_PACKER_CONTEXT(pc);
if ( crPackCanHoldOpcode( pc, 1, size ) )
{
CR_GET_BUFFERED_POINTER_NOLOCK(pc, size ); /* NOTE: this sets data_ptr */
}
else
{
/* It's really way too big, so allocate a temporary packet
* with space for the single opcode plus the payload &
* header.
*/
data_ptr = (unsigned char *)
crAlloc( sizeof(CRMessageOpcodes) + 4 + size );
/* skip the header & opcode space */
data_ptr += sizeof(CRMessageOpcodes) + 4;
}
}
/* At the top of the function, we added four to the request size and
* rounded it up to the next multiple of four.
*
* At this point, we have:
*
* HIGH MEM | byte size - 1 | \
* ... |
* ... | - original 'size' bytes for data
* | operand data | |
* return value -> | operand data | /
* | byte 3 | \
* | byte 2 | |- These bytes will store 'size'
* | byte 1 | |
* data_ptr -> | byte 0 | /
* | CR opcode | <- Set in packspuHuge()
* | unused |
* | unused |
* | unused |
* | CRMessageOpcodes |
* | CRMessageOpcodes |
* ...
* | CRMessageOpcodes |
* | CRMessageOpcodes |
* LOW MEM +------------------+
*/
if (pc->swapping)
{
*((unsigned int *) data_ptr) = SWAP32(size);
crDebug( "Just swapped the length, putting %d on the wire!", *((unsigned int *) data_ptr));
}
else
{
*((unsigned int *) data_ptr) = size;
}
#ifndef CHROMIUM_THREADSAFE
sanityCheckPointer = data_ptr + 4;
#endif
return data_ptr + 4;
}
/*
* This is called from either the Pack SPU and the packer library whenever
* we need to send a data buffer to the server.
*/
void packspuFlush(void *arg )
{
ThreadInfo *thread = (ThreadInfo *) arg;
ContextInfo *ctx;
unsigned int len;
CRMessageOpcodes *hdr;
CRPackBuffer *buf;
/* we should _always_ pass a valid <arg> value */
CRASSERT(thread && thread->inUse);
#ifdef CHROMIUM_THREADSAFE
CR_LOCK_PACKER_CONTEXT(thread->packer);
#endif
ctx = thread->currentContext;
buf = &(thread->buffer);
CRASSERT(buf);
/* We're done packing into the current buffer, unbind it */
crPackReleaseBuffer( thread->packer );
/*
printf("%s thread=%p thread->id = %d thread->pc=%p t2->id=%d t2->pc=%p packbuf=%p packbuf=%p\n",
__FUNCTION__, (void*) thread, (int) thread->id, thread->packer,
(int) t2->id, t2->packer,
buf->pack, thread->packer->buffer.pack);
*/
if ( buf->opcode_current == buf->opcode_start ) {
/*
printf("%s early return\n", __FUNCTION__);
*/
/* XXX these calls seem to help, but might be appropriate */
crPackSetBuffer( thread->packer, buf );
crPackResetPointers(thread->packer);
#ifdef CHROMIUM_THREADSAFE
CR_UNLOCK_PACKER_CONTEXT(thread->packer);
#endif
return;
}
hdr = __prependHeader( buf, &len, 0 );
CRASSERT( thread->netServer.conn );
if ( buf->holds_BeginEnd )
{
/*crDebug("crNetBarf %d, (%d)", len, buf->size);*/
crNetBarf( thread->netServer.conn, &(buf->pack), hdr, len );
}
else
{
/*crDebug("crNetSend %d, (%d)", len, buf->size);*/
crNetSend( thread->netServer.conn, &(buf->pack), hdr, len );
}
buf->pack = crNetAlloc( thread->netServer.conn );
/* The network may have found a new mtu */
buf->mtu = thread->netServer.conn->mtu;
crPackSetBuffer( thread->packer, buf );
crPackResetPointers(thread->packer);
#ifdef CHROMIUM_THREADSAFE
CR_UNLOCK_PACKER_CONTEXT(thread->packer);
#endif
}
void PACKSPU_APIENTRY packspu_VBoxDetachThread()
{
int i;
GET_THREAD(thread);
if (thread)
{
crLockMutex(&_PackMutex);
for (i=0; i<MAX_THREADS; ++i)
{
if (pack_spu.thread[i].inUse && thread==&pack_spu.thread[i]
&& thread->id==crThreadID() && thread->netServer.conn)
{
CRASSERT(pack_spu.numThreads>0);
packspuFlush((void *) thread);
if (pack_spu.thread[i].packer)
{
CR_LOCK_PACKER_CONTEXT(thread->packer);
crPackSetContext(NULL);
CR_UNLOCK_PACKER_CONTEXT(thread->packer);
crPackDeleteContext(pack_spu.thread[i].packer);
}
crNetFreeConnection(pack_spu.thread[i].netServer.conn);
pack_spu.numThreads--;
/*note can't shift the array here, because other threads have TLS references to array elements*/
crMemZero(&pack_spu.thread[i], sizeof(ThreadInfo));
crSetTSD(&_PackTSD, NULL);
if (i==pack_spu.idxThreadInUse)
{
for (i=0; i<MAX_THREADS; ++i)
{
if (pack_spu.thread[i].inUse)
{
pack_spu.idxThreadInUse=i;
break;
}
}
}
break;
}
}
for (i=0; i<CR_MAX_CONTEXTS; ++i)
{
ContextInfo *ctx = &pack_spu.context[i];
if (ctx->currentThread == thread)
{
CRASSERT(ctx->fAutoFlush);
ctx->currentThread = NULL;
}
}
crUnlockMutex(&_PackMutex);
}
crStateVBoxDetachThread();
}