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Revert "more UNBUF fixes" 

This reverts commit a4d3c2a754.
This commit is contained in:
John Cupitt 2017-02-27 10:25:41 +00:00
parent 98f5421c10
commit e7ae10ef68
10 changed files with 38 additions and 26 deletions
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8
TODO
View File

@ -12,9 +12,15 @@
same for fatstrip ... would it be less than tile-height?
deprecate UNBUFFERED? it will probably not work now
remove single-thread-first-tile thing
the readbehind option to many loaders is no longer needed
check pforeign.h
do we need to restore the UNBUFFERED enum member to keep binary compat? we
need to make sure old code using UNBUFF now uses regular SEQ (and not RAND)
- vips linecache has access there twice!

1
libvips/conversion/sequential.c
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@ -262,7 +262,6 @@ vips_sequential_init( VipsSequential *sequential )
sequential->lock = vips_g_mutex_new();
sequential->tile_height = 1;
sequential->error = 0;
sequential->access = VIPS_ACCESS_SEQUENTIAL;
}
/**

1
libvips/conversion/tilecache.c
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@ -280,7 +280,6 @@ vips_tile_search_recycle( gpointer key, gpointer value, gpointer user_data )
break;
case VIPS_ACCESS_SEQUENTIAL:
case VIPS_ACCESS_SEQUENTIAL_UNBUFFERED:
if( tile->pos.top < search->topmost ) {
search->topmost = tile->pos.top;
search->tile = tile;

5
libvips/include/vips/image.h
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@ -129,10 +129,13 @@ typedef enum {
typedef enum {
VIPS_ACCESS_RANDOM,
VIPS_ACCESS_SEQUENTIAL,
VIPS_ACCESS_SEQUENTIAL_UNBUFFERED,
VIPS_ACCESS_LAST
} VipsAccess;
/* Compat for a mode we used to support.
*/
#define VIPS_ACCESS_SEQUENTIAL_UNBUFFERED VIPS_ACCESS_SEQUENTIAL
struct _VipsImage;
struct _VipsRegion;

1
libvips/iofuncs/enumtypes.c
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@ -669,7 +669,6 @@ vips_access_get_type( void )
static const GEnumValue values[] = {
{VIPS_ACCESS_RANDOM, "VIPS_ACCESS_RANDOM", "random"},
{VIPS_ACCESS_SEQUENTIAL, "VIPS_ACCESS_SEQUENTIAL", "sequential"},
{VIPS_ACCESS_SEQUENTIAL_UNBUFFERED, "VIPS_ACCESS_SEQUENTIAL_UNBUFFERED", "sequential-unbuffered"},
{VIPS_ACCESS_LAST, "VIPS_ACCESS_LAST", "last"},
{0, NULL, NULL}
};

25
libvips/iofuncs/object.c
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@ -1816,7 +1816,6 @@ vips_object_set_argument_from_string( VipsObject *object,
if( g_type_is_a( otype, VIPS_TYPE_IMAGE ) ) {
VipsImage *out;
VipsOperationFlags flags;
VipsAccess access;
if( !value ) {
vips_object_no_value( object, name );
@ -1828,15 +1827,12 @@ vips_object_set_argument_from_string( VipsObject *object,
flags = vips_operation_get_flags(
VIPS_OPERATION( object ) );
if( flags &
(VIPS_OPERATION_SEQUENTIAL |
VIPS_OPERATION_SEQUENTIAL_UNBUFFERED) )
access = VIPS_ACCESS_SEQUENTIAL;
else
access = VIPS_ACCESS_RANDOM;
/* Read the filename.
*/
if( !(out = vips_image_new_from_file( value,
"access", access,
"access", flags & VIPS_OPERATION_SEQUENTIAL ?
VIPS_ACCESS_SEQUENTIAL : VIPS_ACCESS_RANDOM,
NULL )) )
return( -1 );
@ -1855,7 +1851,6 @@ vips_object_set_argument_from_string( VipsObject *object,
*/
VipsArrayImage *array_image;
VipsOperationFlags flags;
VipsAccess access;
if( !value ) {
vips_object_no_value( object, name );
@ -1867,15 +1862,9 @@ vips_object_set_argument_from_string( VipsObject *object,
flags = vips_operation_get_flags(
VIPS_OPERATION( object ) );
if( flags &
(VIPS_OPERATION_SEQUENTIAL |
VIPS_OPERATION_SEQUENTIAL_UNBUFFERED) )
access = VIPS_ACCESS_SEQUENTIAL;
else
access = VIPS_ACCESS_RANDOM;
if( !(array_image =
vips_array_image_new_from_string( value, access )) )
if( !(array_image = vips_array_image_new_from_string( value,
flags & VIPS_OPERATION_SEQUENTIAL ?
VIPS_ACCESS_SEQUENTIAL : VIPS_ACCESS_RANDOM )) )
return( -1 );
g_value_init( &gvalue, VIPS_TYPE_ARRAY_IMAGE );

15
libvips/iofuncs/threadpool.c
View File

@ -548,6 +548,12 @@ typedef struct _VipsThreadpool {
/* Set by Allocate (via an arg) to indicate normal end of computation.
*/
gboolean stop;
/* Set by the first thread to hit allocate. The first work unit runs
* single-threaded to give loaders a change to get to the right spot
* in the input.
*/
gboolean done_first;
} VipsThreadpool;
/* Junk a thread.
@ -629,7 +635,8 @@ vips_thread_work_unit( VipsThread *thr )
return;
}
g_mutex_unlock( pool->allocate_lock );
if( pool->done_first )
g_mutex_unlock( pool->allocate_lock );
/* Process a work unit.
*/
@ -637,6 +644,11 @@ vips_thread_work_unit( VipsThread *thr )
thr->error = TRUE;
pool->error = TRUE;
}
if( !pool->done_first ) {
pool->done_first = TRUE;
g_mutex_unlock( pool->allocate_lock );
}
}
/* What runs as a thread ... loop, waiting to be told to do stuff.
@ -769,6 +781,7 @@ vips_threadpool_new( VipsImage *im )
vips_semaphore_init( &pool->tick, 0, "tick" );
pool->error = FALSE;
pool->stop = FALSE;
pool->done_first = FALSE;
/* If this is a tiny image, we won't need all nthr threads. Guess how
* many tiles we might need to cover the image and use that to limit

2
libvips/resample/reduceh.cpp
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@ -562,7 +562,7 @@ vips_reduceh_class_init( VipsReducehClass *reduceh_class )
vobject_class->description = _( "shrink an image horizontally" );
vobject_class->build = vips_reduceh_build;
operation_class->flags = VIPS_OPERATION_SEQUENTIAL;
operation_class->flags = VIPS_OPERATION_SEQUENTIAL_UNBUFFERED;
VIPS_ARG_DOUBLE( reduceh_class, "hshrink", 3,
_( "Hshrink" ),

2
libvips/resample/reducev.cpp
View File

@ -895,7 +895,7 @@ vips_reducev_class_init( VipsReducevClass *reducev_class )
vobject_class->description = _( "shrink an image vertically" );
vobject_class->build = vips_reducev_build;
operation_class->flags = VIPS_OPERATION_SEQUENTIAL;
operation_class->flags = VIPS_OPERATION_SEQUENTIAL_UNBUFFERED;
VIPS_ARG_DOUBLE( reducev_class, "vshrink", 3,
_( "Vshrink" ),

4
libvips/resample/thumbnail.c
View File

@ -634,6 +634,8 @@ vips_thumbnail_file_open( VipsThumbnail *thumbnail, int shrink, double scale )
{
VipsThumbnailFile *file = (VipsThumbnailFile *) thumbnail;
/* We can't use UNBUFERRED safely on very-many-core systems.
*/
if( shrink != 1 )
return( vips_image_new_from_file( file->filename,
"access", VIPS_ACCESS_SEQUENTIAL,
@ -796,6 +798,8 @@ vips_thumbnail_buffer_open( VipsThumbnail *thumbnail,
{
VipsThumbnailBuffer *buffer = (VipsThumbnailBuffer *) thumbnail;
/* We can't use UNBUFERRED safely on very-many-core systems.
*/
if( shrink != 1 )
return( vips_image_new_from_buffer(
buffer->buf->data, buffer->buf->length, "",