unsigned char * TurboJpegLoadFromFile( const char * filename, int * width, int * height )
{
const int fd = open( filename, O_RDONLY );
if ( fd <= 0 )
{
return NULL;
}
struct stat st = {};
if ( fstat( fd, &st ) == -1 )
{
LOG( "fstat failed on %s", filename );
close( fd );
return NULL;
}
const unsigned char * jpg = ( unsigned char * )mmap(
NULL, ( size_t )st.st_size, PROT_READ, MAP_SHARED, fd, 0 );
if ( jpg == MAP_FAILED )
{
LOG( "Failed to mmap %s, len %i: %s", filename, ( int )st.st_size,
strerror( errno ) );
close( fd );
return NULL;
}
LOG( "mmap %s, %i bytes at %p", filename, ( int )st.st_size, jpg );
unsigned char * ret = TurboJpegLoadFromMemory( jpg, ( int )st.st_size, width, height );
close( fd );
munmap( ( void * )jpg, ( size_t )st.st_size );
return ret;
}
unsigned char * VideoBrowser::LoadThumbnail( const char * filename, int & width, int & height )
{
LOG( "VideoBrowser::LoadThumbnail loading on %s", filename );
unsigned char * orig = NULL;
if ( strstr( filename, "assets/" ) )
{
void * buffer = NULL;
int length = 0;
ovr_ReadFileFromApplicationPackage( filename, length, buffer );
if ( buffer )
{
orig = TurboJpegLoadFromMemory( reinterpret_cast< const unsigned char * >( buffer ), length, &width, &height );
free( buffer );
}
}
else if ( strstr( filename, ".pvr" ) )
{
orig = LoadPVRBuffer( filename, width, height );
}
else
{
orig = TurboJpegLoadFromFile( filename, &width, &height );
}
if ( orig )
{
const int ThumbWidth = GetThumbWidth();
const int ThumbHeight = GetThumbHeight();
if ( ThumbWidth == width && ThumbHeight == height )
{
LOG( "VideoBrowser::LoadThumbnail skip resize on %s", filename );
return orig;
}
LOG( "VideoBrowser::LoadThumbnail resizing %s to %ix%i", filename, ThumbWidth, ThumbHeight );
unsigned char * outBuffer = ScaleImageRGBA( ( const unsigned char * )orig, width, height, ThumbWidth, ThumbHeight, IMAGE_FILTER_CUBIC );
free( orig );
if ( outBuffer )
{
width = ThumbWidth;
height = ThumbHeight;
return outBuffer;
}
}
else
{
LOG( "Error: VideoBrowser::LoadThumbnail failed to load %s", filename );
}
return NULL;
}
void * Queue3Thread( void * v )
{
int result = pthread_setname_np( pthread_self(), "FileQueue3" );
if ( result != 0 )
{
LOG( "InitFileQueue: pthread_setname_np failed %s", strerror( result ) );
}
// Process incoming messages until queue is empty
for ( ; ; )
{
Queue3.SleepUntilMessage();
const char * msg = Queue3.GetNextMessage();
LOG( "Queue3 msg = '%s'", msg );
// Note that Queue3 has cleared the message
pthread_mutex_lock( &QueueMutex );
QueueHasCleared = true;
pthread_cond_signal( &QueueWake );
pthread_mutex_unlock( &QueueMutex );
char commandName[1024] = {};
sscanf( msg, "%s", commandName );
int numBuffers = strcmp( commandName, "cube" ) == 0 ? 6 : 1;
unsigned * b[6] = {};
int blen[6];
if ( numBuffers == 1 )
{
sscanf( msg, "%s %p %i", commandName, &b[0], &blen[0] );
}
else
{
OVR_ASSERT( numBuffers == 6 );
sscanf( msg, "%s %p %i %p %i %p %i %p %i %p %i %p %i ", commandName,
&b[0], &blen[0],
&b[1], &blen[1],
&b[2], &blen[2],
&b[3], &blen[3],
&b[4], &blen[4],
&b[5], &blen[5] );
}
#define USE_TURBO_JPEG
#if !defined( USE_TURBO_JPEG )
stbi_uc * data[6];
#else
unsigned char * data[6];
#endif
int resolutionX = 0;
int resolutionY = 0;
int buffCount = 0;
for ( ; buffCount < numBuffers; buffCount++ )
{
int x, y;
unsigned * b1 = b[buffCount];
int b1len = blen[buffCount];
#if !defined( USE_TURBO_JPEG )
int comp;
data[buffCount] = stbi_load_from_memory( (const stbi_uc*)b1, b1len, &x, &y, &comp, 4 );
#else
data[buffCount] = TurboJpegLoadFromMemory( (unsigned char*)b1, b1len, &x, &y );
#endif
if ( buffCount == 0 )
{
resolutionX = x;
resolutionY = y;
}
// done with the loading buffer now
free( b1 );
if ( data[buffCount] == NULL )
{
LOG( "LoadingThread: failed to load from buffer" );
break;
}
}
if ( buffCount != numBuffers ) // an image load failed, free everything and abort this load
{
for ( int i = 0; i < numBuffers; ++i )
{
free( data[i] );
data[i] = NULL;
}
}
else
{
if ( numBuffers == 1 )
{
OVR_ASSERT( data[0] != NULL );
LOG( "Queue3.PostPrintf( \"%s %p %i %i\" )", commandName, data[0], resolutionX, resolutionY );
( ( Oculus360Photos * )v )->GetBGMessageQueue( ).PostPrintf( "%s %p %i %i", commandName, data[ 0 ], resolutionX, resolutionY );
}
else
{
OVR_ASSERT( numBuffers == 6 );
LOG( "Queue3.PostPrintf( \"%s %i %p %p %p %p %p %p\" )", commandName, resolutionX,
data[0], data[1], data[2], data[3], data[4], data[5] );
( ( Oculus360Photos * )v )->GetBGMessageQueue( ).PostPrintf( "%s %i %p %p %p %p %p %p", commandName, resolutionX,
data[0], data[1], data[2], data[3], data[4], data[5] );
}
}
free( (void *)msg );
}
return NULL;
}
