libvips/test/test_connections.c

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/* Test stream*u.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <vips/vips.h>
typedef struct _MyInput {
const char *filename;
const unsigned char *contents;
size_t length;
size_t read_position;
} MyInput;
typedef struct _MyOutput {
const char *filename;
int fd;
} MyOutput;
static gint64
experiment with renaming stream rename as VipsConnection, VipsSource, VipsTarget etc. see https://github.com/libvips/libvips/issues/1494#issuecomment-569498619 renamed with this script: ``` set -e edit() { sed -i -E "$1" rename } for i in $*; do cp $i rename edit s/VIPS_STREAMOU/VIPS_TARGET_CUSTOM/g edit s/VIPS_STREAMO/VIPS_TARGET/g edit s/VIPS_STREAMIU/VIPS_SOURCE_CUSTOM/g edit s/VIPS_STREAMI/VIPS_SOURCE/g edit s/VIPS_STREAM/VIPS_CONNECTION/g edit s/vips_streamou/vips_target_custom/g edit s/vips_streamo/vips_target/g edit s/vips_streamiu/vips_source_custom/g edit s/vips_streami/vips_source/g edit s/vips_stream/vips_connection/g edit s/VipsStreamou/VipsTargetCustom/g edit s/VipsStreamo/VipsTarget/g edit s/VipsStreamiu/VipsSourceCustom/g edit s/VipsStreami/VipsSource/g edit s/VipsStream/VipsConnection/g # eg. VIPS_TYPE_STREAM or VIPS_IS_STREAM edit "s/VIPS_([A-Z]+)_STREAMOU/VIPS_\1_TARGET_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMO/VIPS_\1_TARGET/g" edit "s/VIPS_([A-Z]+)_STREAMIU/VIPS_\1_SOURCE_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMI/VIPS_\1_SOURCE/g" edit "s/VIPS_([A-Z]+)_STREAM/VIPS_\1_CONNECTION/g" edit s/streamou/target_custom/g edit s/streamo/target/g edit s/streamiu/source_custom/g edit s/streami/source/g # various identifiers which also change edit s/is_a_stream/is_a_source/g edit s/find_load_stream/find_load_source/g edit s/find_save_stream/find_save_target/g edit s/new_from_stream/new_from_source/g edit s/write_to_stream/write_to_target/g edit s/vips_thumbnail_stream/vips_thumbnail_source/g # eg. vips_webpload_stream edit "s/vips_([a-z]+)load_stream/vips_\1load_source/g" # eg. vips_webpsave_stream edit "s/vips_([a-z]+)save_stream/vips_\1save_target/g" mv rename $i done ```
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read_cb( VipsSourceCustom *source_custom,
void *buffer, gint64 length, MyInput *my_input )
{
gint64 bytes_read = VIPS_MIN( length,
my_input->length - my_input->read_position );
/*
printf( "read_cb: buffer = 0x%p, length = %zd\n", buffer, length );
*/
memcpy( buffer,
my_input->contents + my_input->read_position, bytes_read );
my_input->read_position += bytes_read;
return( bytes_read );
}
static gint64
experiment with renaming stream rename as VipsConnection, VipsSource, VipsTarget etc. see https://github.com/libvips/libvips/issues/1494#issuecomment-569498619 renamed with this script: ``` set -e edit() { sed -i -E "$1" rename } for i in $*; do cp $i rename edit s/VIPS_STREAMOU/VIPS_TARGET_CUSTOM/g edit s/VIPS_STREAMO/VIPS_TARGET/g edit s/VIPS_STREAMIU/VIPS_SOURCE_CUSTOM/g edit s/VIPS_STREAMI/VIPS_SOURCE/g edit s/VIPS_STREAM/VIPS_CONNECTION/g edit s/vips_streamou/vips_target_custom/g edit s/vips_streamo/vips_target/g edit s/vips_streamiu/vips_source_custom/g edit s/vips_streami/vips_source/g edit s/vips_stream/vips_connection/g edit s/VipsStreamou/VipsTargetCustom/g edit s/VipsStreamo/VipsTarget/g edit s/VipsStreamiu/VipsSourceCustom/g edit s/VipsStreami/VipsSource/g edit s/VipsStream/VipsConnection/g # eg. VIPS_TYPE_STREAM or VIPS_IS_STREAM edit "s/VIPS_([A-Z]+)_STREAMOU/VIPS_\1_TARGET_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMO/VIPS_\1_TARGET/g" edit "s/VIPS_([A-Z]+)_STREAMIU/VIPS_\1_SOURCE_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMI/VIPS_\1_SOURCE/g" edit "s/VIPS_([A-Z]+)_STREAM/VIPS_\1_CONNECTION/g" edit s/streamou/target_custom/g edit s/streamo/target/g edit s/streamiu/source_custom/g edit s/streami/source/g # various identifiers which also change edit s/is_a_stream/is_a_source/g edit s/find_load_stream/find_load_source/g edit s/find_save_stream/find_save_target/g edit s/new_from_stream/new_from_source/g edit s/write_to_stream/write_to_target/g edit s/vips_thumbnail_stream/vips_thumbnail_source/g # eg. vips_webpload_stream edit "s/vips_([a-z]+)load_stream/vips_\1load_source/g" # eg. vips_webpsave_stream edit "s/vips_([a-z]+)save_stream/vips_\1save_target/g" mv rename $i done ```
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seek_cb( VipsSourceCustom *source_custom,
gint64 offset, int whence, MyInput *my_input )
{
gint64 new_pos;
/*
printf( "seek_cb: offset = %zd, whence = %d\n", offset, whence );
*/
switch( whence ) {
case SEEK_SET:
new_pos = offset;
break;
case SEEK_CUR:
new_pos = my_input->read_position + offset;
break;
case SEEK_END:
new_pos = my_input->length + offset;
break;
default:
vips_error( "demo", "%s", "bad 'whence'" );
return( -1 );
}
my_input->read_position = VIPS_CLIP( 0, new_pos, my_input->length );
return( my_input->read_position );
}
static gint64
experiment with renaming stream rename as VipsConnection, VipsSource, VipsTarget etc. see https://github.com/libvips/libvips/issues/1494#issuecomment-569498619 renamed with this script: ``` set -e edit() { sed -i -E "$1" rename } for i in $*; do cp $i rename edit s/VIPS_STREAMOU/VIPS_TARGET_CUSTOM/g edit s/VIPS_STREAMO/VIPS_TARGET/g edit s/VIPS_STREAMIU/VIPS_SOURCE_CUSTOM/g edit s/VIPS_STREAMI/VIPS_SOURCE/g edit s/VIPS_STREAM/VIPS_CONNECTION/g edit s/vips_streamou/vips_target_custom/g edit s/vips_streamo/vips_target/g edit s/vips_streamiu/vips_source_custom/g edit s/vips_streami/vips_source/g edit s/vips_stream/vips_connection/g edit s/VipsStreamou/VipsTargetCustom/g edit s/VipsStreamo/VipsTarget/g edit s/VipsStreamiu/VipsSourceCustom/g edit s/VipsStreami/VipsSource/g edit s/VipsStream/VipsConnection/g # eg. VIPS_TYPE_STREAM or VIPS_IS_STREAM edit "s/VIPS_([A-Z]+)_STREAMOU/VIPS_\1_TARGET_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMO/VIPS_\1_TARGET/g" edit "s/VIPS_([A-Z]+)_STREAMIU/VIPS_\1_SOURCE_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMI/VIPS_\1_SOURCE/g" edit "s/VIPS_([A-Z]+)_STREAM/VIPS_\1_CONNECTION/g" edit s/streamou/target_custom/g edit s/streamo/target/g edit s/streamiu/source_custom/g edit s/streami/source/g # various identifiers which also change edit s/is_a_stream/is_a_source/g edit s/find_load_stream/find_load_source/g edit s/find_save_stream/find_save_target/g edit s/new_from_stream/new_from_source/g edit s/write_to_stream/write_to_target/g edit s/vips_thumbnail_stream/vips_thumbnail_source/g # eg. vips_webpload_stream edit "s/vips_([a-z]+)load_stream/vips_\1load_source/g" # eg. vips_webpsave_stream edit "s/vips_([a-z]+)save_stream/vips_\1save_target/g" mv rename $i done ```
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write_cb( VipsTargetCustom *target_custom,
const void *data, gint64 length, MyOutput *my_output )
{
gint64 bytes_written;
/*
printf( "write_cb: data = 0x%p, length = %zd\n", data, length );
*/
bytes_written = write( my_output->fd, data, length );
return( bytes_written );
}
static void
experiment with renaming stream rename as VipsConnection, VipsSource, VipsTarget etc. see https://github.com/libvips/libvips/issues/1494#issuecomment-569498619 renamed with this script: ``` set -e edit() { sed -i -E "$1" rename } for i in $*; do cp $i rename edit s/VIPS_STREAMOU/VIPS_TARGET_CUSTOM/g edit s/VIPS_STREAMO/VIPS_TARGET/g edit s/VIPS_STREAMIU/VIPS_SOURCE_CUSTOM/g edit s/VIPS_STREAMI/VIPS_SOURCE/g edit s/VIPS_STREAM/VIPS_CONNECTION/g edit s/vips_streamou/vips_target_custom/g edit s/vips_streamo/vips_target/g edit s/vips_streamiu/vips_source_custom/g edit s/vips_streami/vips_source/g edit s/vips_stream/vips_connection/g edit s/VipsStreamou/VipsTargetCustom/g edit s/VipsStreamo/VipsTarget/g edit s/VipsStreamiu/VipsSourceCustom/g edit s/VipsStreami/VipsSource/g edit s/VipsStream/VipsConnection/g # eg. VIPS_TYPE_STREAM or VIPS_IS_STREAM edit "s/VIPS_([A-Z]+)_STREAMOU/VIPS_\1_TARGET_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMO/VIPS_\1_TARGET/g" edit "s/VIPS_([A-Z]+)_STREAMIU/VIPS_\1_SOURCE_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMI/VIPS_\1_SOURCE/g" edit "s/VIPS_([A-Z]+)_STREAM/VIPS_\1_CONNECTION/g" edit s/streamou/target_custom/g edit s/streamo/target/g edit s/streamiu/source_custom/g edit s/streami/source/g # various identifiers which also change edit s/is_a_stream/is_a_source/g edit s/find_load_stream/find_load_source/g edit s/find_save_stream/find_save_target/g edit s/new_from_stream/new_from_source/g edit s/write_to_stream/write_to_target/g edit s/vips_thumbnail_stream/vips_thumbnail_source/g # eg. vips_webpload_stream edit "s/vips_([a-z]+)load_stream/vips_\1load_source/g" # eg. vips_webpsave_stream edit "s/vips_([a-z]+)save_stream/vips_\1save_target/g" mv rename $i done ```
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finish_cb( VipsTargetCustom *target_custom, MyOutput *my_output )
{
/*
printf( "finish_cb:\n" );
*/
close( my_output->fd );
my_output->fd = -1;
}
int
main( int argc, char **argv )
{
MyInput my_input;
MyOutput my_output;
experiment with renaming stream rename as VipsConnection, VipsSource, VipsTarget etc. see https://github.com/libvips/libvips/issues/1494#issuecomment-569498619 renamed with this script: ``` set -e edit() { sed -i -E "$1" rename } for i in $*; do cp $i rename edit s/VIPS_STREAMOU/VIPS_TARGET_CUSTOM/g edit s/VIPS_STREAMO/VIPS_TARGET/g edit s/VIPS_STREAMIU/VIPS_SOURCE_CUSTOM/g edit s/VIPS_STREAMI/VIPS_SOURCE/g edit s/VIPS_STREAM/VIPS_CONNECTION/g edit s/vips_streamou/vips_target_custom/g edit s/vips_streamo/vips_target/g edit s/vips_streamiu/vips_source_custom/g edit s/vips_streami/vips_source/g edit s/vips_stream/vips_connection/g edit s/VipsStreamou/VipsTargetCustom/g edit s/VipsStreamo/VipsTarget/g edit s/VipsStreamiu/VipsSourceCustom/g edit s/VipsStreami/VipsSource/g edit s/VipsStream/VipsConnection/g # eg. VIPS_TYPE_STREAM or VIPS_IS_STREAM edit "s/VIPS_([A-Z]+)_STREAMOU/VIPS_\1_TARGET_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMO/VIPS_\1_TARGET/g" edit "s/VIPS_([A-Z]+)_STREAMIU/VIPS_\1_SOURCE_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMI/VIPS_\1_SOURCE/g" edit "s/VIPS_([A-Z]+)_STREAM/VIPS_\1_CONNECTION/g" edit s/streamou/target_custom/g edit s/streamo/target/g edit s/streamiu/source_custom/g edit s/streami/source/g # various identifiers which also change edit s/is_a_stream/is_a_source/g edit s/find_load_stream/find_load_source/g edit s/find_save_stream/find_save_target/g edit s/new_from_stream/new_from_source/g edit s/write_to_stream/write_to_target/g edit s/vips_thumbnail_stream/vips_thumbnail_source/g # eg. vips_webpload_stream edit "s/vips_([a-z]+)load_stream/vips_\1load_source/g" # eg. vips_webpsave_stream edit "s/vips_([a-z]+)save_stream/vips_\1save_target/g" mv rename $i done ```
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VipsSourceCustom *source_custom;
VipsTargetCustom *target_custom;
VipsImage *image;
if( VIPS_INIT( NULL ) )
return( -1 );
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if( argc != 3 )
vips_error_exit( "usage: %s in-file out-file.png", argv[0] );
my_input.filename = argv[1];
my_input.contents = NULL;
my_input.length = 0;
my_input.read_position = 0;
if( !g_file_get_contents( my_input.filename,
(char **) &my_input.contents, &my_input.length, NULL ) )
vips_error_exit( "unable to load from %s", my_input.filename );
experiment with renaming stream rename as VipsConnection, VipsSource, VipsTarget etc. see https://github.com/libvips/libvips/issues/1494#issuecomment-569498619 renamed with this script: ``` set -e edit() { sed -i -E "$1" rename } for i in $*; do cp $i rename edit s/VIPS_STREAMOU/VIPS_TARGET_CUSTOM/g edit s/VIPS_STREAMO/VIPS_TARGET/g edit s/VIPS_STREAMIU/VIPS_SOURCE_CUSTOM/g edit s/VIPS_STREAMI/VIPS_SOURCE/g edit s/VIPS_STREAM/VIPS_CONNECTION/g edit s/vips_streamou/vips_target_custom/g edit s/vips_streamo/vips_target/g edit s/vips_streamiu/vips_source_custom/g edit s/vips_streami/vips_source/g edit s/vips_stream/vips_connection/g edit s/VipsStreamou/VipsTargetCustom/g edit s/VipsStreamo/VipsTarget/g edit s/VipsStreamiu/VipsSourceCustom/g edit s/VipsStreami/VipsSource/g edit s/VipsStream/VipsConnection/g # eg. VIPS_TYPE_STREAM or VIPS_IS_STREAM edit "s/VIPS_([A-Z]+)_STREAMOU/VIPS_\1_TARGET_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMO/VIPS_\1_TARGET/g" edit "s/VIPS_([A-Z]+)_STREAMIU/VIPS_\1_SOURCE_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMI/VIPS_\1_SOURCE/g" edit "s/VIPS_([A-Z]+)_STREAM/VIPS_\1_CONNECTION/g" edit s/streamou/target_custom/g edit s/streamo/target/g edit s/streamiu/source_custom/g edit s/streami/source/g # various identifiers which also change edit s/is_a_stream/is_a_source/g edit s/find_load_stream/find_load_source/g edit s/find_save_stream/find_save_target/g edit s/new_from_stream/new_from_source/g edit s/write_to_stream/write_to_target/g edit s/vips_thumbnail_stream/vips_thumbnail_source/g # eg. vips_webpload_stream edit "s/vips_([a-z]+)load_stream/vips_\1load_source/g" # eg. vips_webpsave_stream edit "s/vips_([a-z]+)save_stream/vips_\1save_target/g" mv rename $i done ```
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source_custom = vips_source_custom_new();
g_signal_connect( source_custom, "seek",
G_CALLBACK( seek_cb ), &my_input );
g_signal_connect( source_custom, "read",
G_CALLBACK( read_cb ), &my_input );
experiment with renaming stream rename as VipsConnection, VipsSource, VipsTarget etc. see https://github.com/libvips/libvips/issues/1494#issuecomment-569498619 renamed with this script: ``` set -e edit() { sed -i -E "$1" rename } for i in $*; do cp $i rename edit s/VIPS_STREAMOU/VIPS_TARGET_CUSTOM/g edit s/VIPS_STREAMO/VIPS_TARGET/g edit s/VIPS_STREAMIU/VIPS_SOURCE_CUSTOM/g edit s/VIPS_STREAMI/VIPS_SOURCE/g edit s/VIPS_STREAM/VIPS_CONNECTION/g edit s/vips_streamou/vips_target_custom/g edit s/vips_streamo/vips_target/g edit s/vips_streamiu/vips_source_custom/g edit s/vips_streami/vips_source/g edit s/vips_stream/vips_connection/g edit s/VipsStreamou/VipsTargetCustom/g edit s/VipsStreamo/VipsTarget/g edit s/VipsStreamiu/VipsSourceCustom/g edit s/VipsStreami/VipsSource/g edit s/VipsStream/VipsConnection/g # eg. VIPS_TYPE_STREAM or VIPS_IS_STREAM edit "s/VIPS_([A-Z]+)_STREAMOU/VIPS_\1_TARGET_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMO/VIPS_\1_TARGET/g" edit "s/VIPS_([A-Z]+)_STREAMIU/VIPS_\1_SOURCE_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMI/VIPS_\1_SOURCE/g" edit "s/VIPS_([A-Z]+)_STREAM/VIPS_\1_CONNECTION/g" edit s/streamou/target_custom/g edit s/streamo/target/g edit s/streamiu/source_custom/g edit s/streami/source/g # various identifiers which also change edit s/is_a_stream/is_a_source/g edit s/find_load_stream/find_load_source/g edit s/find_save_stream/find_save_target/g edit s/new_from_stream/new_from_source/g edit s/write_to_stream/write_to_target/g edit s/vips_thumbnail_stream/vips_thumbnail_source/g # eg. vips_webpload_stream edit "s/vips_([a-z]+)load_stream/vips_\1load_source/g" # eg. vips_webpsave_stream edit "s/vips_([a-z]+)save_stream/vips_\1save_target/g" mv rename $i done ```
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if( !(image = vips_image_new_from_source(
VIPS_SOURCE( source_custom ), "",
"access", VIPS_ACCESS_SEQUENTIAL,
NULL )) )
vips_error_exit( NULL );
my_output.filename = argv[2];
my_output.fd = -1;
if( (my_output.fd = vips__open( my_output.filename,
O_WRONLY | O_CREAT | O_TRUNC, 0644 )) == -1 )
vips_error_exit( "unable to save to %s", my_output.filename );
experiment with renaming stream rename as VipsConnection, VipsSource, VipsTarget etc. see https://github.com/libvips/libvips/issues/1494#issuecomment-569498619 renamed with this script: ``` set -e edit() { sed -i -E "$1" rename } for i in $*; do cp $i rename edit s/VIPS_STREAMOU/VIPS_TARGET_CUSTOM/g edit s/VIPS_STREAMO/VIPS_TARGET/g edit s/VIPS_STREAMIU/VIPS_SOURCE_CUSTOM/g edit s/VIPS_STREAMI/VIPS_SOURCE/g edit s/VIPS_STREAM/VIPS_CONNECTION/g edit s/vips_streamou/vips_target_custom/g edit s/vips_streamo/vips_target/g edit s/vips_streamiu/vips_source_custom/g edit s/vips_streami/vips_source/g edit s/vips_stream/vips_connection/g edit s/VipsStreamou/VipsTargetCustom/g edit s/VipsStreamo/VipsTarget/g edit s/VipsStreamiu/VipsSourceCustom/g edit s/VipsStreami/VipsSource/g edit s/VipsStream/VipsConnection/g # eg. VIPS_TYPE_STREAM or VIPS_IS_STREAM edit "s/VIPS_([A-Z]+)_STREAMOU/VIPS_\1_TARGET_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMO/VIPS_\1_TARGET/g" edit "s/VIPS_([A-Z]+)_STREAMIU/VIPS_\1_SOURCE_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMI/VIPS_\1_SOURCE/g" edit "s/VIPS_([A-Z]+)_STREAM/VIPS_\1_CONNECTION/g" edit s/streamou/target_custom/g edit s/streamo/target/g edit s/streamiu/source_custom/g edit s/streami/source/g # various identifiers which also change edit s/is_a_stream/is_a_source/g edit s/find_load_stream/find_load_source/g edit s/find_save_stream/find_save_target/g edit s/new_from_stream/new_from_source/g edit s/write_to_stream/write_to_target/g edit s/vips_thumbnail_stream/vips_thumbnail_source/g # eg. vips_webpload_stream edit "s/vips_([a-z]+)load_stream/vips_\1load_source/g" # eg. vips_webpsave_stream edit "s/vips_([a-z]+)save_stream/vips_\1save_target/g" mv rename $i done ```
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target_custom = vips_target_custom_new();
g_signal_connect( target_custom, "write",
G_CALLBACK( write_cb ), &my_output );
experiment with renaming stream rename as VipsConnection, VipsSource, VipsTarget etc. see https://github.com/libvips/libvips/issues/1494#issuecomment-569498619 renamed with this script: ``` set -e edit() { sed -i -E "$1" rename } for i in $*; do cp $i rename edit s/VIPS_STREAMOU/VIPS_TARGET_CUSTOM/g edit s/VIPS_STREAMO/VIPS_TARGET/g edit s/VIPS_STREAMIU/VIPS_SOURCE_CUSTOM/g edit s/VIPS_STREAMI/VIPS_SOURCE/g edit s/VIPS_STREAM/VIPS_CONNECTION/g edit s/vips_streamou/vips_target_custom/g edit s/vips_streamo/vips_target/g edit s/vips_streamiu/vips_source_custom/g edit s/vips_streami/vips_source/g edit s/vips_stream/vips_connection/g edit s/VipsStreamou/VipsTargetCustom/g edit s/VipsStreamo/VipsTarget/g edit s/VipsStreamiu/VipsSourceCustom/g edit s/VipsStreami/VipsSource/g edit s/VipsStream/VipsConnection/g # eg. VIPS_TYPE_STREAM or VIPS_IS_STREAM edit "s/VIPS_([A-Z]+)_STREAMOU/VIPS_\1_TARGET_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMO/VIPS_\1_TARGET/g" edit "s/VIPS_([A-Z]+)_STREAMIU/VIPS_\1_SOURCE_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMI/VIPS_\1_SOURCE/g" edit "s/VIPS_([A-Z]+)_STREAM/VIPS_\1_CONNECTION/g" edit s/streamou/target_custom/g edit s/streamo/target/g edit s/streamiu/source_custom/g edit s/streami/source/g # various identifiers which also change edit s/is_a_stream/is_a_source/g edit s/find_load_stream/find_load_source/g edit s/find_save_stream/find_save_target/g edit s/new_from_stream/new_from_source/g edit s/write_to_stream/write_to_target/g edit s/vips_thumbnail_stream/vips_thumbnail_source/g # eg. vips_webpload_stream edit "s/vips_([a-z]+)load_stream/vips_\1load_source/g" # eg. vips_webpsave_stream edit "s/vips_([a-z]+)save_stream/vips_\1save_target/g" mv rename $i done ```
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g_signal_connect( target_custom, "finish",
G_CALLBACK( finish_cb ), &my_output );
experiment with renaming stream rename as VipsConnection, VipsSource, VipsTarget etc. see https://github.com/libvips/libvips/issues/1494#issuecomment-569498619 renamed with this script: ``` set -e edit() { sed -i -E "$1" rename } for i in $*; do cp $i rename edit s/VIPS_STREAMOU/VIPS_TARGET_CUSTOM/g edit s/VIPS_STREAMO/VIPS_TARGET/g edit s/VIPS_STREAMIU/VIPS_SOURCE_CUSTOM/g edit s/VIPS_STREAMI/VIPS_SOURCE/g edit s/VIPS_STREAM/VIPS_CONNECTION/g edit s/vips_streamou/vips_target_custom/g edit s/vips_streamo/vips_target/g edit s/vips_streamiu/vips_source_custom/g edit s/vips_streami/vips_source/g edit s/vips_stream/vips_connection/g edit s/VipsStreamou/VipsTargetCustom/g edit s/VipsStreamo/VipsTarget/g edit s/VipsStreamiu/VipsSourceCustom/g edit s/VipsStreami/VipsSource/g edit s/VipsStream/VipsConnection/g # eg. VIPS_TYPE_STREAM or VIPS_IS_STREAM edit "s/VIPS_([A-Z]+)_STREAMOU/VIPS_\1_TARGET_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMO/VIPS_\1_TARGET/g" edit "s/VIPS_([A-Z]+)_STREAMIU/VIPS_\1_SOURCE_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMI/VIPS_\1_SOURCE/g" edit "s/VIPS_([A-Z]+)_STREAM/VIPS_\1_CONNECTION/g" edit s/streamou/target_custom/g edit s/streamo/target/g edit s/streamiu/source_custom/g edit s/streami/source/g # various identifiers which also change edit s/is_a_stream/is_a_source/g edit s/find_load_stream/find_load_source/g edit s/find_save_stream/find_save_target/g edit s/new_from_stream/new_from_source/g edit s/write_to_stream/write_to_target/g edit s/vips_thumbnail_stream/vips_thumbnail_source/g # eg. vips_webpload_stream edit "s/vips_([a-z]+)load_stream/vips_\1load_source/g" # eg. vips_webpsave_stream edit "s/vips_([a-z]+)save_stream/vips_\1save_target/g" mv rename $i done ```
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if( vips_image_write_to_target( image, ".png",
VIPS_TARGET( target_custom ), NULL ) )
vips_error_exit( NULL );
VIPS_UNREF( image );
experiment with renaming stream rename as VipsConnection, VipsSource, VipsTarget etc. see https://github.com/libvips/libvips/issues/1494#issuecomment-569498619 renamed with this script: ``` set -e edit() { sed -i -E "$1" rename } for i in $*; do cp $i rename edit s/VIPS_STREAMOU/VIPS_TARGET_CUSTOM/g edit s/VIPS_STREAMO/VIPS_TARGET/g edit s/VIPS_STREAMIU/VIPS_SOURCE_CUSTOM/g edit s/VIPS_STREAMI/VIPS_SOURCE/g edit s/VIPS_STREAM/VIPS_CONNECTION/g edit s/vips_streamou/vips_target_custom/g edit s/vips_streamo/vips_target/g edit s/vips_streamiu/vips_source_custom/g edit s/vips_streami/vips_source/g edit s/vips_stream/vips_connection/g edit s/VipsStreamou/VipsTargetCustom/g edit s/VipsStreamo/VipsTarget/g edit s/VipsStreamiu/VipsSourceCustom/g edit s/VipsStreami/VipsSource/g edit s/VipsStream/VipsConnection/g # eg. VIPS_TYPE_STREAM or VIPS_IS_STREAM edit "s/VIPS_([A-Z]+)_STREAMOU/VIPS_\1_TARGET_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMO/VIPS_\1_TARGET/g" edit "s/VIPS_([A-Z]+)_STREAMIU/VIPS_\1_SOURCE_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMI/VIPS_\1_SOURCE/g" edit "s/VIPS_([A-Z]+)_STREAM/VIPS_\1_CONNECTION/g" edit s/streamou/target_custom/g edit s/streamo/target/g edit s/streamiu/source_custom/g edit s/streami/source/g # various identifiers which also change edit s/is_a_stream/is_a_source/g edit s/find_load_stream/find_load_source/g edit s/find_save_stream/find_save_target/g edit s/new_from_stream/new_from_source/g edit s/write_to_stream/write_to_target/g edit s/vips_thumbnail_stream/vips_thumbnail_source/g # eg. vips_webpload_stream edit "s/vips_([a-z]+)load_stream/vips_\1load_source/g" # eg. vips_webpsave_stream edit "s/vips_([a-z]+)save_stream/vips_\1save_target/g" mv rename $i done ```
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VIPS_UNREF( source_custom );
VIPS_UNREF( target_custom );
return( 0 );
}