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move tiff decompress outside lock (#2969) 

* move tiff decompress outside lock

Most time in TIFF read is spent in decompression. If we move this
outside the lock, we can get a useful speedup.

This commit adds the machinery to move the lock to before decompress, so
jp2k decompression is now threaded.

Before:

```
$ vips copy wtc.jpg x.tif[tile,compression=jp2k]
$ time vips avg x.tif
117.249845
real	0m15.085s
user	0m16.155s
sys	0m0.109s
```

After:

```
$ time vips avg x.tif
117.249845
real	0m1.207s
user	0m18.384s
sys	0m0.369s
```

* start moving jpg decode outside the lock

* move jpeg decompress outside the lock

seems to work

* add some more tile size checks

double-check jpeg tile size before decode

* fix tiffload demand hinting

We were not setting the hint correctly in header load, and we were not
hinting smalltile for tiled TIFFs.
This commit is contained in:
John Cupitt 2022-09-03 13:10:58 +01:00 committed by GitHub
parent 9486110abb
commit a7e754162a
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 432 additions and 114 deletions
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2
ChangeLog
View File

@ -7,10 +7,12 @@ master
- jp2ksave defaults to chroma subsample off, and jp2 write
- don't minimise sink_screen input after expose ... improves caching during
interactive use
- move tiff jp2k and jpeg decompress outside the lock
- require libjxl 0.7+
- add "interlace" option to GIF save [dloebl]
- magick load sets "magick-format" metadata [aksdb]
- add ".pnm", save as image format [ewelot]
- threaded tiff jp2k and jpeg decompress
24/7/22 started 8.13.1
- fix im7 feature detection in meson

1
libvips/foreign/jpeg.h
View File

@ -58,6 +58,7 @@ extern "C" {
#undef FALSE
#endif /*FALSE*/
#include <setjmp.h>
#include <jpeglib.h>
#include <jerror.h>

1
libvips/foreign/jpeg2vips.c
View File

@ -158,7 +158,6 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <setjmp.h>
#include <vips/vips.h>
#include <vips/buf.h>

535
libvips/foreign/tiff2vips.c
View File

@ -207,6 +207,10 @@
* - add fail_on
* 30/9/21
* - fix tiled + packed formats
* 31/7/22
* - move jp2k decompress outside the lock
* - move jpeg decode outside the lock
* - fix demand hinting
*/
/*
@ -259,6 +263,12 @@
#include "pforeign.h"
#include "tiff.h"
/* We do jpeg decompress ourselves, if we can.
*/
#ifdef HAVE_JPEG
#include "jpeg.h"
#endif /*HAVE_JPEG*/
/* Aperio TIFFs (svs) use these compression types for jp2k-compressed tiles.
*/
#define JP2K_YCC 33003
@ -271,6 +281,9 @@
/* Compression types we handle ourselves.
*/
static int rtiff_we_decompress[] = {
#ifdef HAVE_JPEG
COMPRESSION_JPEG,
#endif /*HAVE_JPEG*/
JP2K_YCC,
JP2K_RGB,
JP2K_LOSSY
@ -339,8 +352,7 @@ typedef struct _RtiffHeader {
*/
char *image_description;
/* TRUE if the compression type is not supported by libtiff directly
* and we must read the raw data and decompress ourselves.
/* TRUE if we decompress ourselves rather than relying on libtiff.
*/
gboolean we_decompress;
@ -364,6 +376,11 @@ typedef struct _Rtiff {
gboolean autorotate;
int subifd;
VipsFailOn fail_on;
/* We decompress some compression types in parallel, so we need to
* lock tile get.
*/
GRecMutex lock;
/* The TIFF we read.
*/
@ -400,12 +417,6 @@ typedef struct _Rtiff {
*/
tdata_t contig_buf;
/* If we are decompressing, we need a buffer to read the raw tile to
* before running the decompressor.
*/
tdata_t compressed_buf;
tsize_t compressed_buf_length;
/* The Y we are reading at. Used to verify strip read is sequential.
*/
int y_pos;
@ -553,6 +564,7 @@ static void
rtiff_free( Rtiff *rtiff )
{
VIPS_FREEF( TIFFClose, rtiff->tiff );
g_rec_mutex_clear( &rtiff->lock );
VIPS_UNREF( rtiff->source );
}
@ -566,9 +578,7 @@ static void
rtiff_minimise_cb( VipsImage *image, Rtiff *rtiff )
{
/* We must not minimised tiled images. These can be read from many
* threads, and this minimise handler is not inside the lock that our
* tilecache is using to guarantee single-threaded access to our
* source.
* threads, and this minimise handler is not inside the lock.
*/
if( !rtiff->header.tiled &&
rtiff->source )
@ -592,6 +602,7 @@ rtiff_new( VipsSource *source, VipsImage *out,
rtiff->autorotate = autorotate;
rtiff->subifd = subifd;
rtiff->fail_on = fail_on;
g_rec_mutex_init( &rtiff->lock );
rtiff->tiff = NULL;
rtiff->n_pages = 0;
rtiff->current_page = -1;
@ -1650,7 +1661,7 @@ rtiff_pick_reader( Rtiff *rtiff )
static int
rtiff_set_header( Rtiff *rtiff, VipsImage *out )
{
guint32 data_length;
guint32 data_len;
void *data;
rtiff_set_decode_format( rtiff );
@ -1674,12 +1685,6 @@ rtiff_set_header( Rtiff *rtiff, VipsImage *out )
vips_image_set_int( out, VIPS_META_N_PAGES, rtiff->n_pages );
/* Even though we could end up serving tiled data, always hint
* THINSTRIP, since we're quite happy doing that too, and it could need
* a lot less memory.
*/
vips_image_pipelinev( out, VIPS_DEMAND_STYLE_THINSTRIP, NULL );
/* We have a range of output paths. Look at the tiff header and try to
* route the input image to the best output path.
*/
@ -1689,36 +1694,36 @@ rtiff_set_header( Rtiff *rtiff, VipsImage *out )
/* Read any ICC profile.
*/
if( TIFFGetField( rtiff->tiff,
TIFFTAG_ICCPROFILE, &data_length, &data ) )
TIFFTAG_ICCPROFILE, &data_len, &data ) )
vips_image_set_blob_copy( out,
VIPS_META_ICC_NAME, data, data_length );
VIPS_META_ICC_NAME, data, data_len );
/* Read any XMP metadata.
*/
if( TIFFGetField( rtiff->tiff,
TIFFTAG_XMLPACKET, &data_length, &data ) )
TIFFTAG_XMLPACKET, &data_len, &data ) )
vips_image_set_blob_copy( out,
VIPS_META_XMP_NAME, data, data_length );
VIPS_META_XMP_NAME, data, data_len );
/* Read any IPTC metadata.
*/
if( TIFFGetField( rtiff->tiff,
TIFFTAG_RICHTIFFIPTC, &data_length, &data ) ) {
TIFFTAG_RICHTIFFIPTC, &data_len, &data ) ) {
vips_image_set_blob_copy( out,
VIPS_META_IPTC_NAME, data, data_length );
VIPS_META_IPTC_NAME, data, data_len );
/* Older versions of libvips used this misspelt name :-( attach
* under this name too for compatibility.
*/
vips_image_set_blob_copy( out, "ipct-data", data, data_length );
vips_image_set_blob_copy( out, "ipct-data", data, data_len );
}
/* Read any photoshop metadata.
*/
if( TIFFGetField( rtiff->tiff,
TIFFTAG_PHOTOSHOP, &data_length, &data ) )
TIFFTAG_PHOTOSHOP, &data_len, &data ) )
vips_image_set_blob_copy( out,
VIPS_META_PHOTOSHOP_NAME, data, data_length );
VIPS_META_PHOTOSHOP_NAME, data, data_len );
if( rtiff->header.image_description )
vips_image_set_string( out, VIPS_META_IMAGEDESCRIPTION,
@ -1733,9 +1738,35 @@ rtiff_set_header( Rtiff *rtiff, VipsImage *out )
vips_image_set_int( out,
VIPS_META_ORIENTATION, rtiff->header.orientation );
/* Hint smalltile for tiled images, since we may be decompressing
* outside the lock and THINSTRIP would prevent parallel tile decode.
*/
vips_image_pipelinev( out,
rtiff->header.tiled ?
VIPS_DEMAND_STYLE_SMALLTILE :
VIPS_DEMAND_STYLE_THINSTRIP,
NULL );
return( 0 );
}
/* Tilewise read sequence value.
*/
typedef struct _RtiffSeq {
Rtiff *rtiff;
/* Decompressed tile here.
*/
tdata_t *buf;
/* If we are decompressing, we need a buffer to read the raw tile to
* before running the decompressor. This needs to be per-thread, since
* we decompress in parallel.
*/
tdata_t compressed_buf;
tsize_t compressed_buf_length;
} RtiffSeq;
/* Allocate a tile buffer. Have one of these for each thread so we can unpack
* to vips in parallel.
*/
@ -1743,60 +1774,360 @@ static void *
rtiff_seq_start( VipsImage *out, void *a, void *b )
{
Rtiff *rtiff = (Rtiff *) a;
tdata_t *buf;
RtiffSeq *seq;
if( !(buf = vips_malloc( NULL, rtiff->header.tile_size )) )
if( !(seq = VIPS_NEW( out, RtiffSeq )) )
return( NULL );
seq->rtiff = rtiff;
if( !(seq->buf = vips_malloc( NULL, rtiff->header.tile_size )) )
return( NULL );
return( (void *) buf );
/* If we will be decompressing, we need a buffer large enough to hold
* the largest compressed tile in any page.
*
* Allocate a buffer 2x the uncompressed tile size ... much simpler
* than searching every page for the largest tile with
* TIFFTAG_TILEBYTECOUNTS.
*/
if( rtiff->header.we_decompress ) {
seq->compressed_buf_length = 2 * rtiff->header.tile_size;
if( !(seq->compressed_buf = VIPS_MALLOC( NULL,
seq->compressed_buf_length )) )
return( NULL );
}
return( (void *) seq );
}
#ifdef HAVE_JPEG
static void
rtiff_decompress_jpeg_init_source( j_decompress_ptr cinfo )
{
/* Nothing.
*/
}
static boolean
rtiff_decompress_jpeg_fill_input_buffer( j_decompress_ptr cinfo )
{
static const JOCTET mybuffer[4] = {
(JOCTET) 0xFF, (JOCTET) JPEG_EOI, 0, 0
};
/* The whole JPEG data is expected to reside in the supplied memory
* buffer, so any request for more data beyond the given buffer size
* is treated as an error.
*/
WARNMS( cinfo, JWRN_JPEG_EOF );
/* Insert a fake EOI marker
*/
cinfo->src->next_input_byte = mybuffer;
cinfo->src->bytes_in_buffer = 2;
return( TRUE );
}
/* Skip data --- used to skip over a potentially large amount of
* uninteresting data (such as an APPn marker).
*
* Writers of suspendable-input applications must note that skip_input_data
* is not granted the right to give a suspension return. If the skip extends
* beyond the data currently in the buffer, the buffer can be marked empty so
* that the next read will cause a fill_input_buffer call that can suspend.
* Arranging for additional bytes to be discarded before reloading the input
* buffer is the application writer's problem.
*/
static void
rtiff_decompress_jpeg_skip_input_data( j_decompress_ptr cinfo, long num_bytes )
{
struct jpeg_source_mgr * src = cinfo->src;
/* Just a dumb implementation for now. Could use fseek() except
* it doesn't work on pipes. Not clear that being smart is worth
* any trouble anyway --- large skips are infrequent.
*/
if( num_bytes > 0 ) {
while( num_bytes > (long) src->bytes_in_buffer ) {
num_bytes -= (long) src->bytes_in_buffer;
(void) (*src->fill_input_buffer)( cinfo );
/* note we assume that fill_input_buffer will never
* return FALSE, so suspension need not be handled.
*/
}
src->next_input_byte += (size_t) num_bytes;
src->bytes_in_buffer -= (size_t) num_bytes;
}
}
static void
rtiff_decompress_jpeg_set_memory( j_decompress_ptr cinfo,
void *data, size_t data_len )
{
if( !cinfo->src )
cinfo->src = (struct jpeg_source_mgr *)
(*cinfo->mem->alloc_small)(
(j_common_ptr) cinfo, JPOOL_PERMANENT,
sizeof( struct jpeg_source_mgr ) );
/* Present the whole of data as one chunk.
*/
cinfo->src->bytes_in_buffer = data_len;
cinfo->src->next_input_byte = (JOCTET *) data;
cinfo->src->init_source = rtiff_decompress_jpeg_init_source;
cinfo->src->fill_input_buffer = rtiff_decompress_jpeg_fill_input_buffer;
cinfo->src->skip_input_data = rtiff_decompress_jpeg_skip_input_data;
cinfo->src->resync_to_restart = jpeg_resync_to_restart;
}
static int
rtiff_read_tile( Rtiff *rtiff, tdata_t *buf, int x, int y )
rtiff_decompress_jpeg_run( Rtiff *rtiff, j_decompress_ptr cinfo,
void *data, size_t data_len, void *out )
{
void *tables;
uint32_t tables_len;
int bytes_per_pixel;
size_t bytes_per_scanline;
VipsPel *q;
int y;
#ifdef DEBUG_VERBOSE
printf( "rtiff_read_tile: x = %d, y = %d, we_decompress = %d\n",
x, y, rtiff->header.we_decompress );
printf( "rtiff_decompress_jpeg_run: decompressing %zd bytes of jpg\n",
data_len );
#endif /*DEBUG_VERBOSE*/
if( rtiff->header.we_decompress ) {
ttile_t tile_no = TIFFComputeTile( rtiff->tiff, x, y, 0, 0 );
/* Tables are optional.
*/
tables = NULL;
tables_len = 0;
(void) TIFFGetField( rtiff->tiff,
TIFFTAG_JPEGTABLES, &tables_len, &tables );
tsize_t size;
if( tables ) {
rtiff_decompress_jpeg_set_memory( cinfo, tables, tables_len );
if( jpeg_read_header( cinfo, FALSE ) !=
JPEG_HEADER_TABLES_ONLY )
return( -1 );
}
rtiff_decompress_jpeg_set_memory( cinfo, data, data_len );
if( jpeg_read_header( cinfo, TRUE ) != JPEG_HEADER_OK )
return( -1 );
/* This isn't stored in the tile -- we have to set it from the
* enclosing TIFF.
*/
switch( rtiff->header.photometric_interpretation ) {
case PHOTOMETRIC_SEPARATED:
cinfo->jpeg_color_space = JCS_CMYK;
bytes_per_pixel = 4;
break;
case PHOTOMETRIC_YCBCR:
cinfo->jpeg_color_space = JCS_YCbCr;
bytes_per_pixel = 3;
break;
case PHOTOMETRIC_RGB:
cinfo->jpeg_color_space = JCS_RGB;
bytes_per_pixel = 3;
break;
case PHOTOMETRIC_MINISBLACK:
cinfo->jpeg_color_space = JCS_GRAYSCALE;
bytes_per_pixel = 1;
break;
default:
g_assert_not_reached();
break;
}
jpeg_start_decompress( cinfo );
bytes_per_scanline = cinfo->output_width * bytes_per_pixel;
/* Double-check tile dimensions.
*/
if( cinfo->output_width > rtiff->header.tile_width ||
cinfo->output_height > rtiff->header.tile_height ||
bytes_per_scanline > rtiff->header.tile_row_size )
return( -1 );
q = (VipsPel *) out;
for( y = 0; y < cinfo->output_height; y++ ) {
JSAMPROW row_pointer[1];
row_pointer[0] = (JSAMPLE *) q;
jpeg_read_scanlines( cinfo, &row_pointer[0], 1 );
q += bytes_per_scanline;
}
return( 0 );
}
static void
rtiff_decompress_jpeg_emit_message( j_common_ptr cinfo, int msg_level )
{
if( msg_level < 0 ) {
long num_warnings;
/* Always count warnings in num_warnings.
*/
num_warnings = ++cinfo->err->num_warnings;
/* Corrupt files may give many warnings, the policy here is to
* show only the first warning and treat many warnings as fatal,
* unless unlimited is set.
*/
if( num_warnings == 1 )
(*cinfo->err->output_message)( cinfo );
}
else if( cinfo->err->trace_level >= msg_level )
/* It's a trace message. Show it if trace_level >= msg_level.
*/
(*cinfo->err->output_message)( cinfo );
}
/* Decompress a tile of size coefficients into out.
*/
static int
rtiff_decompress_jpeg( Rtiff *rtiff, void *data, size_t data_len, void *out )
{
struct jpeg_decompress_struct cinfo = { 0 };
ErrorManager eman;
if( setjmp( eman.jmp ) == 0 ) {
cinfo.err = jpeg_std_error( &eman.pub );
eman.pub.error_exit = vips__new_error_exit;
eman.pub.emit_message = rtiff_decompress_jpeg_emit_message;
eman.pub.output_message = vips__new_output_message;
eman.fp = NULL;
jpeg_create_decompress( &cinfo );
if( rtiff_decompress_jpeg_run( rtiff, &cinfo,
data, data_len, out ) ) {
jpeg_destroy_decompress( &cinfo );
return( -1 );
}
}
else {
#ifdef DEBUG_VERBOSE
printf( "rtiff_decompress_jpeg: error return\n" );
#endif /*DEBUG_VERBOSE*/
jpeg_destroy_decompress( &cinfo );
return( -1 );
}
jpeg_destroy_decompress( &cinfo );
return( 0 );
}
#endif /*HAVE_JPEG*/
static int
rtiff_decompress_tile( Rtiff *rtiff, tdata_t *in, tsize_t size, tdata_t *out )
{
g_assert( rtiff->header.we_decompress );
switch( rtiff->header.compression ) {
case JP2K_YCC:
case JP2K_RGB:
case JP2K_LOSSY:
if( vips__foreign_load_jp2k_decompress(
rtiff->out,
rtiff->header.tile_width,
rtiff->header.tile_height,
TRUE,
in, size,
out, rtiff->header.tile_size ) )
return( -1 );
break;
#ifdef HAVE_JPEG
case COMPRESSION_JPEG:
if( rtiff_decompress_jpeg( rtiff, in, size, out ) )
return( -1 );
break;
#endif /*HAVE_JPEG*/
default:
g_assert_not_reached();
break;
}
return( 0 );
}
/* Select a page and decompress a tile. This has to be a single operation,
* since it changes the current page number in TIFF.
*/
static int
rtiff_read_tile( RtiffSeq *seq, tdata_t *buf, int page, int x, int y )
{
Rtiff *rtiff = seq->rtiff;
tsize_t size;
#ifdef DEBUG_VERBOSE
printf( "rtiff_read_tile: page = %d, x = %d, y = %d, "
"we_decompress = %d\n",
page, x, y, rtiff->header.we_decompress );
#endif /*DEBUG_VERBOSE*/
/* Compressed tiles load to compressed_buf.
*/
if( rtiff->header.we_decompress ) {
ttile_t tile_no;
g_rec_mutex_lock( &rtiff->lock );
if( rtiff_set_page( rtiff, page ) ) {
g_rec_mutex_unlock( &rtiff->lock );
return( -1 );
}
tile_no = TIFFComputeTile( rtiff->tiff, x, y, 0, 0 );
size = TIFFReadRawTile( rtiff->tiff, tile_no,
rtiff->compressed_buf, rtiff->compressed_buf_length );
seq->compressed_buf, seq->compressed_buf_length );
if( size <= 0 ) {
vips_foreign_load_invalidate( rtiff->out );
g_rec_mutex_unlock( &rtiff->lock );
return( -1 );
}
switch( rtiff->header.compression ) {
case JP2K_YCC:
case JP2K_RGB:
case JP2K_LOSSY:
if( vips__foreign_load_jp2k_decompress(
rtiff->out,
rtiff->header.tile_width,
rtiff->header.tile_height,
TRUE,
rtiff->compressed_buf, size,
buf, rtiff->header.tile_size ) )
return( -1 );
break;
g_rec_mutex_unlock( &rtiff->lock );
default:
g_assert_not_reached();
break;
}
/* Decompress outside the lock, so we get parallelism.
*/
if( rtiff_decompress_tile( rtiff,
seq->compressed_buf, size, buf ) ) {
vips_error( "tiff2vips",
_( "decompress error tile %d x %d" ), x, y );
return( -1 );
}
}
else {
g_rec_mutex_lock( &rtiff->lock );
}
else {
if( TIFFReadTile( rtiff->tiff, buf, x, y, 0, 0 ) < 0 ) {
if( rtiff_set_page( rtiff, page ) ) {
g_rec_mutex_unlock( &rtiff->lock );
return( -1 );
}
if( TIFFReadTile( rtiff->tiff, buf, x, y, 0, 0 ) < 0 ) {
vips_foreign_load_invalidate( rtiff->out );
g_rec_mutex_unlock( &rtiff->lock );
return( -1 );
}
}
g_rec_mutex_unlock( &rtiff->lock );
}
return( 0 );
}
@ -1808,8 +2139,9 @@ rtiff_read_tile( Rtiff *rtiff, tdata_t *buf, int x, int y )
*/
static int
rtiff_fill_region_aligned( VipsRegion *out,
void *seq, void *a, void *b, gboolean *stop )
void *vseq, void *a, void *b, gboolean *stop )
{
RtiffSeq *seq = (RtiffSeq *) vseq;
Rtiff *rtiff = (Rtiff *) a;
VipsRect *r = &out->valid;
int page_height = rtiff->header.height;
@ -1828,10 +2160,9 @@ rtiff_fill_region_aligned( VipsRegion *out,
/* Read that tile directly into the vips tile.
*/
if( rtiff_set_page( rtiff, rtiff->page + page_no ) ||
rtiff_read_tile( rtiff,
(tdata_t *) VIPS_REGION_ADDR( out, r->left, r->top ),
r->left, page_y ) )
if( rtiff_read_tile( seq,
(tdata_t *) VIPS_REGION_ADDR( out, r->left, r->top ),
rtiff->page + page_no, r->left, page_y ) )
return( -1 );
return( 0 );
@ -1841,9 +2172,9 @@ rtiff_fill_region_aligned( VipsRegion *out,
*/
static int
rtiff_fill_region_unaligned( VipsRegion *out,
void *seq, void *a, void *b, gboolean *stop )
void *vseq, void *a, void *b, gboolean *stop )
{
tdata_t *buf = (tdata_t *) seq;
RtiffSeq *seq = (RtiffSeq *) vseq;
Rtiff *rtiff = (Rtiff *) a;
int tile_width = rtiff->header.tile_width;
int tile_height = rtiff->header.tile_height;
@ -1880,8 +2211,8 @@ rtiff_fill_region_unaligned( VipsRegion *out,
int xs = ((r->left + x) / tile_width) * tile_width;
int ys = (page_y / tile_height) * tile_height;
if( rtiff_set_page( rtiff, rtiff->page + page_no ) ||
rtiff_read_tile( rtiff, buf, xs, ys ) )
if( rtiff_read_tile( seq,
seq->buf, rtiff->page + page_no, xs, ys ) )
return( -1 );
/* Position of tile on the page.
@ -1918,7 +2249,7 @@ rtiff_fill_region_unaligned( VipsRegion *out,
* Just unpack the section of the tile we need.
*/
for( z = 0; z < hit.height; z++ ) {
VipsPel *p = (VipsPel *) buf +
VipsPel *p = (VipsPel *) seq->buf +
(hit.top - tile.top + z) *
tile_row_size;
VipsPel *q = VIPS_REGION_ADDR( out,
@ -1944,7 +2275,7 @@ rtiff_fill_region_unaligned( VipsRegion *out,
*/
static int
rtiff_fill_region( VipsRegion *out,
void *seq, void *a, void *b, gboolean *stop )
void *vseq, void *a, void *b, gboolean *stop )
{
Rtiff *rtiff = (Rtiff *) a;
int tile_width = rtiff->header.tile_width;
@ -1984,7 +2315,7 @@ rtiff_fill_region( VipsRegion *out,
VIPS_GATE_START( "rtiff_fill_region: work" );
if( generate( out, seq, a, b, stop ) ) {
if( generate( out, vseq, a, b, stop ) ) {
VIPS_GATE_STOP( "rtiff_fill_region: work" );
return( -1 );
}
@ -1995,9 +2326,12 @@ rtiff_fill_region( VipsRegion *out,
}
static int
rtiff_seq_stop( void *seq, void *a, void *b )
rtiff_seq_stop( void *vseq, void *a, void *b )
{
g_free( seq );
RtiffSeq *seq = (RtiffSeq *) vseq;
VIPS_FREE( seq->buf );
VIPS_FREE( seq->compressed_buf );
return( 0 );
}
@ -2053,20 +2387,6 @@ rtiff_read_tilewise( Rtiff *rtiff, VipsImage *out )
return( -1 );
}
/* If we will be decompressing, we need a buffer large enough to hold
* the largest compressed tile in any page.
*
* Allocate a buffer 2x the uncompressed tile size ... much simpler
* than searching every page for the largest tile with
* TIFFTAG_TILEBYTECOUNTS.
*/
if( rtiff->header.we_decompress ) {
rtiff->compressed_buf_length = 2 * rtiff->header.tile_size;
if( !(rtiff->compressed_buf = vips_malloc( VIPS_OBJECT( out ),
rtiff->compressed_buf_length )) )
return( -1 );
}
/* Read to this image, then cache to out, see below.
*/
t[0] = vips_image_new();
@ -2088,13 +2408,9 @@ rtiff_read_tilewise( Rtiff *rtiff, VipsImage *out )
}
}
/* Even though this is a tiled reader, we hint thinstrip since with
* the cache we are quite happy serving that if anything downstream
* would like it.
*/
vips_image_pipelinev( t[0], VIPS_DEMAND_STYLE_THINSTRIP, NULL );
/* Generate to out, adding a cache. Enough tiles for two complete rows.
* Set "threaded", so we allow many tiles to be read at once. We lock
* around each tile read.
*/
if(
vips_image_generate( t[0],
@ -2104,6 +2420,7 @@ rtiff_read_tilewise( Rtiff *rtiff, VipsImage *out )
"tile_width", tile_width,
"tile_height", tile_height,
"max_tiles", 2 * (1 + t[0]->Xsize / tile_width),
"threaded", TRUE,
NULL ) ||
rtiff_unpremultiply( rtiff, t[1], &t[2] ) )
return( -1 );
@ -2124,19 +2441,23 @@ rtiff_read_tilewise( Rtiff *rtiff, VipsImage *out )
return( 0 );
}
/* Read a strip. If the image is in separate planes, read each plane and
* interleave to the output.
/* Read a strip from a page. If the image is in separate planes, read each
* plane and interleave to the output.
*
* strip is the number of this strip in this page.
* No need to lock -- this is inside a sequential.
*/
static int
rtiff_strip_read_interleaved( Rtiff *rtiff, tstrip_t strip, tdata_t buf )
rtiff_strip_read_interleaved( Rtiff *rtiff,
int page, tstrip_t strip, tdata_t buf )
{
int samples_per_pixel = rtiff->header.samples_per_pixel;
int read_height = rtiff->header.read_height;
int bits_per_sample = rtiff->header.bits_per_sample;
int strip_y = strip * read_height;
if( rtiff_set_page( rtiff, page ) )
return( -1 );
if( rtiff->header.separate ) {
int page_width = rtiff->header.width;
int page_height = rtiff->header.height;
@ -2154,7 +2475,7 @@ rtiff_strip_read_interleaved( Rtiff *rtiff, tstrip_t strip, tdata_t buf )
if( rtiff_strip_read( rtiff,
strips_per_plane * i + strip,
rtiff->plane_buf ) )
rtiff->plane_buf ) )
return( -1 );
p = (VipsPel *) rtiff->plane_buf;
@ -2169,7 +2490,7 @@ rtiff_strip_read_interleaved( Rtiff *rtiff, tstrip_t strip, tdata_t buf )
}
}
else {
if( rtiff_strip_read( rtiff, strip, buf ) )
if( rtiff_strip_read( rtiff, strip, buf ) )
return( -1 );
}
@ -2263,11 +2584,6 @@ rtiff_stripwise_generate( VipsRegion *or,
g_assert( hit.height > 0 );
if( rtiff_set_page( rtiff, rtiff->page + page_no ) ) {
VIPS_GATE_STOP( "rtiff_stripwise_generate: work" );
return( -1 );
}
/* Read directly into the image if we can. Otherwise, we must
* read to a temp buffer then unpack into the image.
*
@ -2277,7 +2593,8 @@ rtiff_stripwise_generate( VipsRegion *or,
if( rtiff->memcpy &&
hit.top == strip.top &&
hit.height == strip.height ) {
if( rtiff_strip_read_interleaved( rtiff, strip_no,
if( rtiff_strip_read_interleaved( rtiff,
rtiff->page + page_no, strip_no,
VIPS_REGION_ADDR( or, 0, r->top + y ) ) ) {
VIPS_GATE_STOP(
"rtiff_stripwise_generate: work" );
@ -2291,7 +2608,8 @@ rtiff_stripwise_generate( VipsRegion *or,
/* Read and interleave the entire strip.
*/
if( rtiff_strip_read_interleaved( rtiff, strip_no,
if( rtiff_strip_read_interleaved( rtiff,
rtiff->page + page_no, strip_no,
rtiff->contig_buf ) ) {
VIPS_GATE_STOP(
"rtiff_stripwise_generate: work" );
@ -2344,8 +2662,6 @@ rtiff_read_stripwise( Rtiff *rtiff, VipsImage *out )
if( rtiff_set_header( rtiff, t[0] ) )
return( -1 );
vips_image_pipelinev( t[0], VIPS_DEMAND_STYLE_THINSTRIP, NULL );
/* Double check: in memcpy mode, the vips linesize should exactly
* match the tiff line size.
*/
@ -2374,7 +2690,7 @@ rtiff_read_stripwise( Rtiff *rtiff, VipsImage *out )
* function runs inside the cache lock.
*/
if( rtiff->header.separate ) {
if( !(rtiff->plane_buf = vips_malloc( VIPS_OBJECT( out ),
if( !(rtiff->plane_buf = VIPS_MALLOC( out,
rtiff->header.read_size )) )
return( -1 );
}
@ -2396,8 +2712,7 @@ rtiff_read_stripwise( Rtiff *rtiff, VipsImage *out )
if( rtiff->header.separate )
size *= rtiff->header.samples_per_pixel;
if( !(rtiff->contig_buf =
vips_malloc( VIPS_OBJECT( out ), size )) )
if( !(rtiff->contig_buf = VIPS_MALLOC( out, size )) )
return( -1 );
}

1
libvips/foreign/vips2jpeg.c
View File

@ -144,7 +144,6 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <setjmp.h>
#include <math.h>
#include <vips/vips.h>

6
libvips/include/vips/memory.h
View File

@ -59,10 +59,12 @@ G_STMT_START { \
} \
} G_STMT_END
#define VIPS_MALLOC( OBJ, S ) \
(vips_malloc( VIPS_OBJECT( OBJ ), S))
#define VIPS_NEW( OBJ, T ) \
((T *) vips_malloc( VIPS_OBJECT( OBJ ), sizeof( T )))
((T *) VIPS_MALLOC( OBJ, sizeof( T )))
#define VIPS_ARRAY( OBJ, N, T ) \
((T *) vips_malloc( VIPS_OBJECT( OBJ ), (N) * sizeof( T )))
((T *) VIPS_MALLOC( OBJ, (N) * sizeof( T )))
VIPS_API
void *vips_malloc( VipsObject *object, size_t size );