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shrink2 now done 

big mem saving, still a bit slower though
This commit is contained in:
John Cupitt 2015-10-31 10:43:08 +00:00
parent da8f236f95
commit 582a7f1810
8 changed files with 42 additions and 39 deletions
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14
TODO
View File

@ -14,17 +14,15 @@
we would then only need to demand the source a line at a time, and the
intermediate image would be much smaller ... possible cache savings as well
added shrink2 for the new code
currently a bit slower than old shrink, much less mem though
current state on work machine, debug build
try:
$ time vips shrink wtc.jpg x.v 10 10
memory: high-water mark 238.09 MB
real 0m1.178s
user 0m1.384s
sys 0m0.064s
* special path for RGB and mono
done h/v, get shrink2 done and bench against plain shrink
* for shrinkh, prepare input in batches?
* change loop indexing? don't use *p++ etc., it'll break vectorization
- add bandjoinconst ... append a band (or bands?) from a constant

20
doc/gtk-doc.make
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@ -25,6 +25,7 @@ TARGET_DIR=$(HTML_DIR)/$(DOC_MODULE)
SETUP_FILES = \
$(content_files) \
$(expand_content_files) \
$(DOC_MAIN_SGML_FILE) \
$(DOC_MODULE)-sections.txt \
$(DOC_MODULE)-overrides.txt
@ -86,7 +87,7 @@ GTK_DOC_V_SETUP_0=@echo " DOC Preparing build";
setup-build.stamp:
-$(GTK_DOC_V_SETUP)if test "$(abs_srcdir)" != "$(abs_builddir)" ; then \
files=`echo $(SETUP_FILES) $(expand_content_files) $(DOC_MODULE).types`; \
files=`echo $(SETUP_FILES) $(DOC_MODULE).types`; \
if test "x$$files" != "x" ; then \
for file in $$files ; do \
destdir=`dirname $(abs_builddir)/$$file`; \
@ -118,7 +119,7 @@ scan-build.stamp: setup-build.stamp $(HFILE_GLOB) $(CFILE_GLOB)
$(GTK_DOC_V_INTROSPECT)if grep -l '^..*$$' $(DOC_MODULE).types > /dev/null 2>&1 ; then \
scanobj_options=""; \
gtkdoc-scangobj 2>&1 --help | grep >/dev/null "\-\-verbose"; \
if test "$(?)" = "0"; then \
if test "$$?" = "0"; then \
if test "x$(V)" = "x1"; then \
scanobj_options="--verbose"; \
fi; \
@ -162,17 +163,17 @@ GTK_DOC_V_XREF=$(GTK_DOC_V_XREF_$(V))
GTK_DOC_V_XREF_=$(GTK_DOC_V_XREF_$(AM_DEFAULT_VERBOSITY))
GTK_DOC_V_XREF_0=@echo " DOC Fixing cross-references";
html-build.stamp: sgml.stamp $(DOC_MAIN_SGML_FILE) $(content_files)
html-build.stamp: sgml.stamp $(DOC_MAIN_SGML_FILE) $(content_files) $(expand_content_files)
$(GTK_DOC_V_HTML)rm -rf html && mkdir html && \
mkhtml_options=""; \
gtkdoc-mkhtml 2>&1 --help | grep >/dev/null "\-\-verbose"; \
if test "$(?)" = "0"; then \
if test "$$?" = "0"; then \
if test "x$(V)" = "x1"; then \
mkhtml_options="$$mkhtml_options --verbose"; \
fi; \
fi; \
gtkdoc-mkhtml 2>&1 --help | grep >/dev/null "\-\-path"; \
if test "$(?)" = "0"; then \
if test "$$?" = "0"; then \
mkhtml_options="$$mkhtml_options --path=\"$(abs_srcdir)\""; \
fi; \
cd html && gtkdoc-mkhtml $$mkhtml_options $(MKHTML_OPTIONS) $(DOC_MODULE) ../$(DOC_MAIN_SGML_FILE)
@ -194,11 +195,11 @@ GTK_DOC_V_PDF=$(GTK_DOC_V_PDF_$(V))
GTK_DOC_V_PDF_=$(GTK_DOC_V_PDF_$(AM_DEFAULT_VERBOSITY))
GTK_DOC_V_PDF_0=@echo " DOC Building PDF";
pdf-build.stamp: sgml.stamp $(DOC_MAIN_SGML_FILE) $(content_files)
pdf-build.stamp: sgml.stamp $(DOC_MAIN_SGML_FILE) $(content_files) $(expand_content_files)
$(GTK_DOC_V_PDF)rm -f $(DOC_MODULE).pdf && \
mkpdf_options=""; \
gtkdoc-mkpdf 2>&1 --help | grep >/dev/null "\-\-verbose"; \
if test "$(?)" = "0"; then \
if test "$$?" = "0"; then \
if test "x$(V)" = "x1"; then \
mkpdf_options="$$mkpdf_options --verbose"; \
fi; \
@ -223,12 +224,15 @@ clean-local:
@if echo $(SCAN_OPTIONS) | grep -q "\-\-rebuild-types" ; then \
rm -f $(DOC_MODULE).types; \
fi
@if echo $(SCAN_OPTIONS) | grep -q "\-\-rebuild-sections" ; then \
rm -f $(DOC_MODULE)-sections.txt; \
fi
distclean-local:
@rm -rf xml html $(REPORT_FILES) $(DOC_MODULE).pdf \
$(DOC_MODULE)-decl-list.txt $(DOC_MODULE)-decl.txt
@if test "$(abs_srcdir)" != "$(abs_builddir)" ; then \
rm -f $(SETUP_FILES) $(expand_content_files) $(DOC_MODULE).types; \
rm -f $(SETUP_FILES) $(DOC_MODULE).types; \
fi
maintainer-clean-local:

2
libvips/include/vips/resample.h
View File

@ -43,6 +43,8 @@ int vips_shrink( VipsImage *in, VipsImage **out,
__attribute__((sentinel));
int vips_shrinkh( VipsImage *in, VipsImage **out, int xshrink, ... );
int vips_shrinkv( VipsImage *in, VipsImage **out, int yshrink, ... );
int vips_shrink2( VipsImage *in, VipsImage **out,
int xshrink, int yshrink, ... );
int vips_similarity( VipsImage *in, VipsImage **out, ... )
__attribute__((sentinel));
int vips_resize( VipsImage *in, VipsImage **out, double scale, ... )

1
libvips/resample/Makefile.am
View File

@ -8,6 +8,7 @@ libresample_la_SOURCES = \
shrink.c \
shrinkh.c \
shrinkv.c \
shrink2.c \
interpolate.c \
transform.c \
bicubic.cpp \

2
libvips/resample/resample.c
View File

@ -114,6 +114,7 @@ vips_resample_operation_init( void )
extern GType vips_shrink_get_type( void );
extern GType vips_shrinkh_get_type( void );
extern GType vips_shrinkv_get_type( void );
extern GType vips_shrink2_get_type( void );
extern GType vips_quadratic_get_type( void );
extern GType vips_affine_get_type( void );
extern GType vips_similarity_get_type( void );
@ -122,6 +123,7 @@ vips_resample_operation_init( void )
vips_shrink_get_type();
vips_shrinkh_get_type();
vips_shrinkv_get_type();
vips_shrink2_get_type();
vips_quadratic_get_type();
vips_affine_get_type();
vips_similarity_get_type();

14
libvips/resample/shrink2.c
View File

@ -69,19 +69,15 @@ vips_shrink2_build( VipsObject *object )
VipsResample *resample = VIPS_RESAMPLE( object );
VipsShrink2 *shrink = (VipsShrink2 *) object;
VipsImage **t = (VipsImage **)
vips_object_local_array( object, 1 );
VipsImage *in;
vips_object_local_array( object, 2 );
if( VIPS_OBJECT_CLASS( vips_shrink2_parent_class )->build( object ) )
return( -1 );
in = resample->in;
if( vips_shrinkh( in, &t[0], shrink->xshrink, NULL ) ||
vips_shrinkv( t[0], &t[1], shrink->yshrink, NULL ) )
if( vips_shrinkh( resample->in, &t[0], shrink->xshrink, NULL ) ||
vips_shrinkv( t[0], &t[1], shrink->yshrink, NULL ) ||
vips_image_write( t[1], resample->out ) )
return( -1 );
in = t[1];
return( 0 );
}
@ -102,7 +98,7 @@ vips_shrink2_class_init( VipsShrink2Class *class )
vobject_class->description = _( "shrink an image" );
vobject_class->build = vips_shrink2_build;
operation_class->flags = VIPS_OPERATION_SEQUENTIAL;
operation_class->flags = VIPS_OPERATION_SEQUENTIAL_UNBUFFERED;
VIPS_ARG_INT( class, "xshrink", 8,
_( "Xshrink" ),

14
libvips/resample/shrinkh.c
View File

@ -106,9 +106,9 @@ vips_shrinkh_start( VipsImage *out, void *a, void *b )
/* Integer shrink.
*/
#define ISHRINK( TYPE ) { \
int *sum = (int *) seq->sum; \
TYPE *p = (TYPE *) in; \
TYPE *q = (TYPE *) out; \
int * restrict sum = (int *) seq->sum; \
TYPE * restrict p = (TYPE *) in; \
TYPE * restrict q = (TYPE *) out; \
\
for( x = 0; x < width; x++ ) { \
for( b = 0; b < bands; b++ ) \
@ -127,9 +127,9 @@ vips_shrinkh_start( VipsImage *out, void *a, void *b )
/* Float shrink.
*/
#define FSHRINK( TYPE ) { \
double *sum = (double *) seq->sum; \
TYPE *p = (TYPE *) in; \
TYPE *q = (TYPE *) out; \
double * restrict sum = (double *) seq->sum; \
TYPE * restrict p = (TYPE *) in; \
TYPE * restrict q = (TYPE *) out; \
\
for( x = 0; x < width; x++ ) { \
for( b = 0; b < bands; b++ ) \
@ -324,7 +324,7 @@ vips_shrinkh_class_init( VipsShrinkhClass *class )
vobject_class->description = _( "shrink an image horizontally" );
vobject_class->build = vips_shrinkh_build;
operation_class->flags = VIPS_OPERATION_SEQUENTIAL;
operation_class->flags = VIPS_OPERATION_SEQUENTIAL_UNBUFFERED;
VIPS_ARG_INT( class, "xshrink", 8,
_( "Xshrink" ),

14
libvips/resample/shrinkv.c
View File

@ -144,8 +144,8 @@ vips_shrinkv_start( VipsImage *out, void *a, void *b )
}
#define ADD( ACC_TYPE, TYPE ) { \
ACC_TYPE *sum = (ACC_TYPE *) seq->sum; \
TYPE *p = (TYPE *) in; \
ACC_TYPE * restrict sum = (ACC_TYPE *) seq->sum; \
TYPE * restrict p = (TYPE *) in; \
\
for( x = 0; x < sz; x++ ) \
sum[x] += p[x]; \
@ -196,8 +196,8 @@ vips_shrinkv_add_line( VipsShrinkv *shrink, VipsShrinkvSequence *seq,
/* Integer average.
*/
#define IAVG( TYPE ) { \
int *sum = (int *) seq->sum; \
TYPE *q = (TYPE *) out; \
int * restrict sum = (int *) seq->sum; \
TYPE * restrict q = (TYPE *) out; \
\
for( x = 0; x < sz; x++ ) \
q[x] = (sum[x] + shrink->yshrink / 2) / shrink->yshrink; \
@ -206,8 +206,8 @@ vips_shrinkv_add_line( VipsShrinkv *shrink, VipsShrinkvSequence *seq,
/* Float average.
*/
#define FAVG( TYPE ) { \
double *sum = (double *) seq->sum; \
TYPE *q = (TYPE *) out; \
double * restrict sum = (double *) seq->sum; \
TYPE * restrict q = (TYPE *) out; \
\
for( x = 0; x < sz; x++ ) \
q[x] = sum[x] / shrink->yshrink; \
@ -407,7 +407,7 @@ vips_shrinkv_class_init( VipsShrinkvClass *class )
vobject_class->description = _( "shrink an image vertically" );
vobject_class->build = vips_shrinkv_build;
operation_class->flags = VIPS_OPERATION_SEQUENTIAL;
operation_class->flags = VIPS_OPERATION_SEQUENTIAL_UNBUFFERED;
VIPS_ARG_INT( class, "yshrink", 9,
_( "Yshrink" ),