static int vips_replicate_build( VipsObject *object ) { VipsConversion *conversion = VIPS_CONVERSION( object ); VipsReplicate *replicate = (VipsReplicate *) object; if( VIPS_OBJECT_CLASS( vips_replicate_parent_class )->build( object ) ) return( -1 ); if( vips_image_pio_input( replicate->in ) ) return( -1 ); if( vips_image_copy_fields( conversion->out, replicate->in ) ) return( -1 ); vips_demand_hint( conversion->out, VIPS_DEMAND_STYLE_SMALLTILE, replicate->in, NULL ); conversion->out->Xsize *= replicate->across; conversion->out->Ysize *= replicate->down; if( vips_image_generate( conversion->out, vips_start_one, vips_replicate_gen, vips_stop_one, replicate->in, replicate ) ) return( -1 ); return( 0 ); }
static int vips_sequential_build( VipsObject *object ) { VipsConversion *conversion = VIPS_CONVERSION( object ); VipsSequential *sequential = (VipsSequential *) object; VipsImage *t; VIPS_DEBUG_MSG( "vips_sequential_build\n" ); if( VIPS_OBJECT_CLASS( vips_sequential_parent_class )->build( object ) ) return( -1 ); if( vips_image_pio_input( sequential->in ) ) return( -1 ); if( vips_linecache( sequential->in, &t, "tile_height", sequential->tile_height, "access", sequential->access, NULL ) ) return( -1 ); vips_object_local( object, t ); if( vips_image_pipelinev( conversion->out, VIPS_DEMAND_STYLE_THINSTRIP, t, NULL ) ) return( -1 ); if( vips_image_generate( conversion->out, vips_start_one, vips_sequential_generate, vips_stop_one, t, sequential ) ) return( -1 ); return( 0 ); }
static int vips_statistic_build( VipsObject *object ) { VipsStatistic *statistic = VIPS_STATISTIC( object ); VipsObjectClass *class = VIPS_OBJECT_GET_CLASS( object ); const char *domain = class->nickname; #ifdef DEBUG printf( "vips_statistic_build: " ); vips_object_print_name( object ); printf( "\n" ); #endif /*DEBUG*/ if( VIPS_OBJECT_CLASS( vips_statistic_parent_class )->build( object ) ) return( -1 ); if( vips_image_pio_input( statistic->in ) || vips_check_uncoded( domain, statistic->in ) ) return( -1 ); if( vips_sink( statistic->in, vips_statistic_scan_start, vips_statistic_scan, vips_statistic_scan_stop, statistic, NULL ) ) return( -1 ); return( 0 ); }
static int vips_tile_cache_build( VipsObject *object ) { VipsConversion *conversion = VIPS_CONVERSION( object ); VipsTileCache *cache = (VipsTileCache *) object; VIPS_DEBUG_MSG( "vips_tile_cache_build\n" ); if( VIPS_OBJECT_CLASS( vips_tile_cache_parent_class )->build( object ) ) return( -1 ); if( vips_image_pio_input( cache->in ) ) return( -1 ); if( vips_image_copy_fields( conversion->out, cache->in ) ) return( -1 ); vips_demand_hint( conversion->out, VIPS_DEMAND_STYLE_SMALLTILE, cache->in, NULL ); if( vips_image_generate( conversion->out, vips_start_one, vips_tile_cache_gen, vips_stop_one, cache->in, cache ) ) return( -1 ); return( 0 ); }
int vips__ppm_save( VipsImage *in, const char *filename, gboolean ascii ) { Write *write; if( vips_check_uintorf( "vips2ppm", in ) || vips_check_bands_1or3( "vips2ppm", in ) || vips_check_uncoded( "vips2ppm", in ) || vips_image_pio_input( in ) ) return( -1 ); /* We can only write >8 bit binary images in float. */ if( vips_format_sizeof( in->BandFmt ) > 1 && !ascii && in->BandFmt != VIPS_FORMAT_FLOAT ) { vips_error( "vips2ppm", "%s", _( "binary >8 bit images must be float" ) ); return( -1 ); } if( !(write = write_new( in, filename )) ) return( -1 ); if( write_ppm( write, ascii ) ) { write_destroy( write ); return( -1 ); } write_destroy( write ); return( 0 ); }
static int vips_sequential_build( VipsObject *object ) { VipsConversion *conversion = VIPS_CONVERSION( object ); VipsSequential *sequential = (VipsSequential *) object; VIPS_DEBUG_MSG( "vips_sequential_build\n" ); if( VIPS_OBJECT_CLASS( vips_sequential_parent_class )->build( object ) ) return( -1 ); if( vips_image_pio_input( sequential->in ) ) return( -1 ); if( vips_image_copy_fields( conversion->out, sequential->in ) ) return( -1 ); vips_demand_hint( conversion->out, VIPS_DEMAND_STYLE_FATSTRIP, sequential->in, NULL ); if( vips_image_generate( conversion->out, vips_start_one, vips_sequential_generate, vips_stop_one, sequential->in, sequential ) ) return( -1 ); return( 0 ); }
static int vips_recomb_build( VipsObject *object ) { VipsConversion *conversion = (VipsConversion *) object; VipsRecomb *recomb = (VipsRecomb *) object; VipsImage **t = (VipsImage **) vips_object_local_array( object, 2 ); if( VIPS_OBJECT_CLASS( vips_recomb_parent_class )->build( object ) ) return( -1 ); if( vips_image_pio_input( recomb->in ) || vips_check_uncoded( "VipsRecomb", recomb->in ) || vips_check_noncomplex( "VipsRecomb", recomb->in ) ) return( -1 ); if( vips_image_pio_input( recomb->m ) || vips_check_uncoded( "VipsRecomb", recomb->m ) || vips_check_noncomplex( "VipsRecomb", recomb->m ) || vips_check_mono( "VipsRecomb", recomb->m ) ) return( -1 ); if( recomb->in->Bands != recomb->m->Xsize ) { vips_error( "VipsRecomb", "%s", _( "bands in must equal matrix width" ) ); return( -1 ); } if( vips_cast( recomb->m, &t[0], VIPS_FORMAT_DOUBLE, NULL ) || vips_image_wio_input( t[0] ) ) return( -1 ); recomb->coeff = (double *) VIPS_IMAGE_ADDR( t[0], 0, 0 ); if( vips_image_copy_fields( conversion->out, recomb->in ) ) return( -1 ); vips_demand_hint( conversion->out, VIPS_DEMAND_STYLE_THINSTRIP, recomb->in, NULL ); conversion->out->Bands = recomb->m->Ysize; if( vips_bandfmt_isint( recomb->in->BandFmt ) ) conversion->out->BandFmt = VIPS_FORMAT_FLOAT; if( vips_image_generate( conversion->out, vips_start_one, vips_recomb_gen, vips_stop_one, recomb->in, recomb ) ) return( -1 ); return( 0 ); }
static int vips_bandary_build( VipsObject *object ) { VipsConversion *conversion = VIPS_CONVERSION( object ); VipsBandary *bandary = (VipsBandary *) object; int i; VipsImage **format; VipsImage **size; if( VIPS_OBJECT_CLASS( vips_bandary_parent_class )->build( object ) ) return( -1 ); if( bandary->n <= 0 ) { vips_error( "VipsBandary", "%s", _( "no input images" ) ); return( -1 ); } if( bandary->n > MAX_INPUT_IMAGES ) { vips_error( "VipsBandary", "%s", _( "too many input images" ) ); return( -1 ); } if( vips_image_pio_output( conversion->out ) ) return( -1 ); for( i = 0; i < bandary->n; i++ ) if( vips_image_pio_input( bandary->in[i] ) || vips_check_uncoded( "VipsBandary", bandary->in[i] ) ) return( -1 ); format = (VipsImage **) vips_object_local_array( object, bandary->n ); size = (VipsImage **) vips_object_local_array( object, bandary->n ); if( vips__formatalike_vec( bandary->in, format, bandary->n ) || vips__sizealike_vec( format, size, bandary->n ) ) return( -1 ); bandary->ready = size; if( vips_image_copy_fields_array( conversion->out, bandary->ready ) ) return( -1 ); vips_demand_hint_array( conversion->out, VIPS_DEMAND_STYLE_THINSTRIP, bandary->ready ); conversion->out->Bands = bandary->out_bands; if( vips_image_generate( conversion->out, vips_start_many, vips_bandary_gen, vips_stop_many, bandary->ready, bandary ) ) return( -1 ); return( 0 ); }
static int vips_byteswap_build( VipsObject *object ) { VipsConversion *conversion = VIPS_CONVERSION( object ); VipsByteswap *byteswap = (VipsByteswap *) object; if( VIPS_OBJECT_CLASS( vips_byteswap_parent_class )->build( object ) ) return( -1 ); if( vips_image_pio_input( byteswap->in ) ) return( -1 ); if( vips_image_pipelinev( conversion->out, VIPS_DEMAND_STYLE_THINSTRIP, byteswap->in, NULL ) ) return( -1 ); if( vips_image_generate( conversion->out, vips_start_one, vips_byteswap_gen, vips_stop_one, byteswap->in, byteswap ) ) return( -1 ); return( 0 ); }
static int vips_flip_build( VipsObject *object ) { VipsConversion *conversion = VIPS_CONVERSION( object ); VipsFlip *flip = (VipsFlip *) object; VipsGenerateFn generate_fn; if( VIPS_OBJECT_CLASS( vips_flip_parent_class )->build( object ) ) return( -1 ); if( vips_image_pio_input( flip->in ) ) return( -1 ); if( vips_image_copy_fields( conversion->out, flip->in ) ) return( -1 ); vips_demand_hint( conversion->out, VIPS_DEMAND_STYLE_THINSTRIP, flip->in, NULL ); if( flip->direction == VIPS_DIRECTION_HORIZONTAL ) { generate_fn = vips_flip_horizontal_gen; conversion->out->Xoffset = flip->in->Xsize; conversion->out->Yoffset = 0; } else { generate_fn = vips_flip_vertical_gen; conversion->out->Xoffset = 0; conversion->out->Yoffset = flip->in->Ysize; } if( vips_image_generate( conversion->out, vips_start_one, generate_fn, vips_stop_one, flip->in, flip ) ) return( -1 ); return( 0 ); }
static int vips_copy_build( VipsObject *object ) { VipsConversion *conversion = VIPS_CONVERSION( object ); VipsCopy *copy = (VipsCopy *) object; int i; if( VIPS_OBJECT_CLASS( vips_copy_parent_class )->build( object ) ) return( -1 ); if( vips_image_pio_input( copy->in ) ) return( -1 ); if( vips_image_pipelinev( conversion->out, VIPS_DEMAND_STYLE_THINSTRIP, copy->in, NULL ) ) return( -1 ); /* Use props to adjust header fields. */ for( i = 0; i < VIPS_NUMBER( vips_copy_names ); i++ ) { const char *name = vips_copy_names[i]; GParamSpec *pspec; VipsArgumentClass *argument_class; VipsArgumentInstance *argument_instance; if( vips_object_get_argument( object, name, &pspec, &argument_class, &argument_instance ) ) return( -1 ); if( argument_instance->assigned ) { GType type = G_PARAM_SPEC_VALUE_TYPE( pspec ); GValue value = { 0, }; g_value_init( &value, type ); g_object_get_property( G_OBJECT( object ), name, &value ); #ifdef VIPS_DEBUG { char *str; str = g_strdup_value_contents( &value ); printf( "vips_copy_build: %s = %s\n", name, str ); g_free( str ); } #endif /* VIPS_DEBUG */ g_object_set_property( G_OBJECT( conversion->out ), name, &value ); g_value_unset( &value ); } } if( vips_image_generate( conversion->out, vips_start_one, vips_copy_gen, vips_stop_one, copy->in, copy ) ) return( -1 ); return( 0 ); }
/* Write a VIPS image to PNG. */ static int write_vips( Write *write, int compress, int interlace, const char *profile, VipsForeignPngFilter filter, gboolean strip ) { VipsImage *in = write->in; int bit_depth; int color_type; int interlace_type; int i, nb_passes; g_assert( in->BandFmt == VIPS_FORMAT_UCHAR || in->BandFmt == VIPS_FORMAT_USHORT ); g_assert( in->Coding == VIPS_CODING_NONE ); g_assert( in->Bands > 0 && in->Bands < 5 ); /* Catch PNG errors. */ if( setjmp( png_jmpbuf( write->pPng ) ) ) return( -1 ); /* Check input image. If we are writing interlaced, we need to make 7 * passes over the image. We advertise ourselves as seq, so to ensure * we only suck once from upstream, switch to WIO. */ if( interlace ) { if( !(write->memory = vips_image_copy_memory( in )) ) return( -1 ); in = write->memory; } else { if( vips_image_pio_input( in ) ) return( -1 ); } if( compress < 0 || compress > 9 ) { vips_error( "vips2png", "%s", _( "compress should be in [0,9]" ) ); return( -1 ); } /* Set compression parameters. */ png_set_compression_level( write->pPng, compress ); /* Set row filter. */ png_set_filter( write->pPng, 0, filter ); bit_depth = in->BandFmt == VIPS_FORMAT_UCHAR ? 8 : 16; switch( in->Bands ) { case 1: color_type = PNG_COLOR_TYPE_GRAY; break; case 2: color_type = PNG_COLOR_TYPE_GRAY_ALPHA; break; case 3: color_type = PNG_COLOR_TYPE_RGB; break; case 4: color_type = PNG_COLOR_TYPE_RGB_ALPHA; break; default: vips_error( "vips2png", _( "can't save %d band image as png" ), in->Bands ); return( -1 ); } interlace_type = interlace ? PNG_INTERLACE_ADAM7 : PNG_INTERLACE_NONE; png_set_IHDR( write->pPng, write->pInfo, in->Xsize, in->Ysize, bit_depth, color_type, interlace_type, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT ); /* Set resolution. libpng uses pixels per meter. */ png_set_pHYs( write->pPng, write->pInfo, VIPS_RINT( in->Xres * 1000 ), VIPS_RINT( in->Yres * 1000 ), PNG_RESOLUTION_METER ); /* Set ICC Profile. */ if( profile && !strip ) { if( strcmp( profile, "none" ) != 0 ) { void *data; size_t length; if( !(data = vips__file_read_name( profile, VIPS_ICC_DIR, &length )) ) return( -1 ); #ifdef DEBUG printf( "write_vips: " "attaching %zd bytes of ICC profile\n", length ); #endif /*DEBUG*/ png_set_iCCP( write->pPng, write->pInfo, "icc", PNG_COMPRESSION_TYPE_BASE, data, length ); } } else if( vips_image_get_typeof( in, VIPS_META_ICC_NAME ) && !strip ) { void *data; size_t length; if( vips_image_get_blob( in, VIPS_META_ICC_NAME, &data, &length ) ) return( -1 ); #ifdef DEBUG printf( "write_vips: attaching %zd bytes of ICC profile\n", length ); #endif /*DEBUG*/ png_set_iCCP( write->pPng, write->pInfo, "icc", PNG_COMPRESSION_TYPE_BASE, data, length ); } png_write_info( write->pPng, write->pInfo ); /* If we're an intel byte order CPU and this is a 16bit image, we need * to swap bytes. */ if( bit_depth > 8 && !vips_amiMSBfirst() ) png_set_swap( write->pPng ); if( interlace ) nb_passes = png_set_interlace_handling( write->pPng ); else nb_passes = 1; /* Write data. */ for( i = 0; i < nb_passes; i++ ) if( vips_sink_disc( in, write_png_block, write ) ) return( -1 ); /* The setjmp() was held by our background writer: reset it. */ if( setjmp( png_jmpbuf( write->pPng ) ) ) return( -1 ); png_write_end( write->pPng, write->pInfo ); return( 0 ); }
/* Write a VIPS image to PNG. */ static int write_vips( Write *write, int compress, int interlace ) { VipsImage *in = write->in; int bit_depth; int color_type; int interlace_type; int i, nb_passes; g_assert( in->BandFmt == VIPS_FORMAT_UCHAR || in->BandFmt == VIPS_FORMAT_USHORT ); g_assert( in->Coding == VIPS_CODING_NONE ); g_assert( in->Bands > 0 && in->Bands < 5 ); /* Catch PNG errors. */ if( setjmp( png_jmpbuf( write->pPng ) ) ) return( -1 ); /* Check input image. */ if( vips_image_pio_input( in ) ) return( -1 ); if( compress < 0 || compress > 9 ) { vips_error( "vips2png", "%s", _( "compress should be in [0,9]" ) ); return( -1 ); } /* Set compression parameters. */ png_set_compression_level( write->pPng, compress ); bit_depth = in->BandFmt == VIPS_FORMAT_UCHAR ? 8 : 16; switch( in->Bands ) { case 1: color_type = PNG_COLOR_TYPE_GRAY; break; case 2: color_type = PNG_COLOR_TYPE_GRAY_ALPHA; break; case 3: color_type = PNG_COLOR_TYPE_RGB; break; case 4: color_type = PNG_COLOR_TYPE_RGB_ALPHA; break; default: g_assert( 0 ); /* Keep -Wall happy. */ return( 0 ); } interlace_type = interlace ? PNG_INTERLACE_ADAM7 : PNG_INTERLACE_NONE; png_set_IHDR( write->pPng, write->pInfo, in->Xsize, in->Ysize, bit_depth, color_type, interlace_type, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT ); /* Set resolution. libpnbg uses pixels per meter. */ png_set_pHYs( write->pPng, write->pInfo, VIPS_RINT( in->Xres * 1000 ), VIPS_RINT( in->Yres * 1000 ), PNG_RESOLUTION_METER ); /* Set ICC Profile. */ if( vips_image_get_typeof( in, VIPS_META_ICC_NAME ) ) { void *profile; size_t profile_length; if( vips_image_get_blob( in, VIPS_META_ICC_NAME, &profile, &profile_length ) ) return( -1 ); #ifdef DEBUG printf( "write_vips: attaching %zd bytes of ICC profile\n", profile_length ); #endif /*DEBUG*/ png_set_iCCP( write->pPng, write->pInfo, "icc", PNG_COMPRESSION_TYPE_BASE, profile, profile_length ); } png_write_info( write->pPng, write->pInfo ); /* If we're an intel byte order CPU and this is a 16bit image, we need * to swap bytes. */ if( bit_depth > 8 && !vips_amiMSBfirst() ) png_set_swap( write->pPng ); if( interlace ) nb_passes = png_set_interlace_handling( write->pPng ); else nb_passes = 1; /* Write data. */ for( i = 0; i < nb_passes; i++ ) if( vips_sink_disc( write->in, write_png_block, write ) ) return( -1 ); /* The setjmp() was held by our background writer: reset it. */ if( setjmp( png_jmpbuf( write->pPng ) ) ) return( -1 ); png_write_end( write->pPng, write->pInfo ); return( 0 ); }
/* Write a VIPS image to PNG. */ static int write_vips( Write *write, int compress, int interlace, const char *profile, VipsForeignPngFilter filter, gboolean strip, gboolean palette, int colours, int Q, double dither ) { VipsImage *in = write->in; int bit_depth; int color_type; int interlace_type; int i, nb_passes; g_assert( in->BandFmt == VIPS_FORMAT_UCHAR || in->BandFmt == VIPS_FORMAT_USHORT ); g_assert( in->Coding == VIPS_CODING_NONE ); g_assert( in->Bands > 0 && in->Bands < 5 ); /* Catch PNG errors. */ if( setjmp( png_jmpbuf( write->pPng ) ) ) return( -1 ); /* Check input image. If we are writing interlaced, we need to make 7 * passes over the image. We advertise ourselves as seq, so to ensure * we only suck once from upstream, switch to WIO. */ if( interlace ) { if( !(write->memory = vips_image_copy_memory( in )) ) return( -1 ); in = write->memory; } else { if( vips_image_pio_input( in ) ) return( -1 ); } if( compress < 0 || compress > 9 ) { vips_error( "vips2png", "%s", _( "compress should be in [0,9]" ) ); return( -1 ); } /* Set compression parameters. */ png_set_compression_level( write->pPng, compress ); /* Set row filter. */ png_set_filter( write->pPng, 0, filter ); bit_depth = in->BandFmt == VIPS_FORMAT_UCHAR ? 8 : 16; switch( in->Bands ) { case 1: color_type = PNG_COLOR_TYPE_GRAY; break; case 2: color_type = PNG_COLOR_TYPE_GRAY_ALPHA; break; case 3: color_type = PNG_COLOR_TYPE_RGB; break; case 4: color_type = PNG_COLOR_TYPE_RGB_ALPHA; break; default: vips_error( "vips2png", _( "can't save %d band image as png" ), in->Bands ); return( -1 ); } #ifdef HAVE_IMAGEQUANT /* Enable image quantisation to paletted 8bpp PNG if colours is set. */ if( palette ) { g_assert( colours >= 2 && colours <= 256 ); bit_depth = 8; color_type = PNG_COLOR_TYPE_PALETTE; } #else if( palette ) g_warning( "%s", _( "ignoring palette (no quantisation support)" ) ); #endif /*HAVE_IMAGEQUANT*/ interlace_type = interlace ? PNG_INTERLACE_ADAM7 : PNG_INTERLACE_NONE; png_set_IHDR( write->pPng, write->pInfo, in->Xsize, in->Ysize, bit_depth, color_type, interlace_type, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT ); /* Set resolution. libpng uses pixels per meter. */ png_set_pHYs( write->pPng, write->pInfo, VIPS_RINT( in->Xres * 1000 ), VIPS_RINT( in->Yres * 1000 ), PNG_RESOLUTION_METER ); /* Set ICC Profile. */ if( profile && !strip ) { if( strcmp( profile, "none" ) != 0 ) { void *data; size_t length; if( !(data = vips__file_read_name( profile, vips__icc_dir(), &length )) ) return( -1 ); #ifdef DEBUG printf( "write_vips: " "attaching %zd bytes of ICC profile\n", length ); #endif /*DEBUG*/ png_set_iCCP( write->pPng, write->pInfo, "icc", PNG_COMPRESSION_TYPE_BASE, data, length ); } } else if( vips_image_get_typeof( in, VIPS_META_ICC_NAME ) && !strip ) { void *data; size_t length; if( vips_image_get_blob( in, VIPS_META_ICC_NAME, &data, &length ) ) return( -1 ); #ifdef DEBUG printf( "write_vips: attaching %zd bytes of ICC profile\n", length ); #endif /*DEBUG*/ png_set_iCCP( write->pPng, write->pInfo, "icc", PNG_COMPRESSION_TYPE_BASE, data, length ); } if( vips_image_get_typeof( in, VIPS_META_XMP_NAME ) ) { const char *str; if( vips_image_get_string( in, VIPS_META_XMP_NAME, &str ) ) return( -1 ); vips__png_set_text( write->pPng, write->pInfo, "XML:com.adobe.xmp", str ); } /* Set any "png-comment-xx-yyy" metadata items. */ if( vips_image_map( in, write_png_comment, write ) ) return( -1 ); #ifdef HAVE_IMAGEQUANT if( palette ) { VipsImage *im_index; VipsImage *im_palette; int palette_count; png_color *png_palette; png_byte *png_trans; int trans_count; if( vips__quantise_image( in, &im_index, &im_palette, colours, Q, dither ) ) return( -1 ); palette_count = im_palette->Xsize; g_assert( palette_count <= PNG_MAX_PALETTE_LENGTH ); png_palette = (png_color *) png_malloc( write->pPng, palette_count * sizeof( png_color ) ); png_trans = (png_byte *) png_malloc( write->pPng, palette_count * sizeof( png_byte ) ); trans_count = 0; for( i = 0; i < palette_count; i++ ) { VipsPel *p = (VipsPel *) VIPS_IMAGE_ADDR( im_palette, i, 0 ); png_color *col = &png_palette[i]; col->red = p[0]; col->green = p[1]; col->blue = p[2]; png_trans[i] = p[3]; if( p[3] != 255 ) trans_count = i + 1; #ifdef DEBUG printf( "write_vips: palette[%d] %d %d %d %d\n", i + 1, p[0], p[1], p[2], p[3] ); #endif /*DEBUG*/ } #ifdef DEBUG printf( "write_vips: attaching %d color palette\n", palette_count ); #endif /*DEBUG*/ png_set_PLTE( write->pPng, write->pInfo, png_palette, palette_count ); if( trans_count ) { #ifdef DEBUG printf( "write_vips: attaching %d alpha values\n", trans_count ); #endif /*DEBUG*/ png_set_tRNS( write->pPng, write->pInfo, png_trans, trans_count, NULL ); } png_free( write->pPng, (void *) png_palette ); png_free( write->pPng, (void *) png_trans ); VIPS_UNREF( im_palette ); VIPS_UNREF( write->memory ); write->memory = im_index; in = write->memory; } #endif /*HAVE_IMAGEQUANT*/ png_write_info( write->pPng, write->pInfo ); /* If we're an intel byte order CPU and this is a 16bit image, we need * to swap bytes. */ if( bit_depth > 8 && !vips_amiMSBfirst() ) png_set_swap( write->pPng ); if( interlace ) nb_passes = png_set_interlace_handling( write->pPng ); else nb_passes = 1; /* Write data. */ for( i = 0; i < nb_passes; i++ ) if( vips_sink_disc( in, write_png_block, write ) ) return( -1 ); /* The setjmp() was held by our background writer: reset it. */ if( setjmp( png_jmpbuf( write->pPng ) ) ) return( -1 ); png_write_end( write->pPng, write->pInfo ); return( 0 ); }
static int vips_rot_build( VipsObject *object ) { VipsConversion *conversion = VIPS_CONVERSION( object ); VipsRot *rot = (VipsRot *) object; VipsGenerateFn generate_fn; VipsDemandStyle hint; if( VIPS_OBJECT_CLASS( vips_rot_parent_class )->build( object ) ) return( -1 ); if( rot->angle == VIPS_ANGLE_0 ) return( vips_image_write( rot->in, conversion->out ) ); if( vips_image_pio_input( rot->in ) ) return( -1 ); if( vips_image_copy_fields( conversion->out, rot->in ) ) return( -1 ); switch( rot->angle ) { case VIPS_ANGLE_90: generate_fn = vips_rot90_gen; hint = VIPS_DEMAND_STYLE_SMALLTILE; conversion->out->Xsize = rot->in->Ysize; conversion->out->Ysize = rot->in->Xsize; conversion->out->Xoffset = rot->in->Ysize; conversion->out->Yoffset = 0; break; case VIPS_ANGLE_180: generate_fn = vips_rot180_gen; hint = VIPS_DEMAND_STYLE_THINSTRIP; conversion->out->Xoffset = rot->in->Xsize; conversion->out->Yoffset = rot->in->Ysize; break; case VIPS_ANGLE_270: generate_fn = vips_rot270_gen; hint = VIPS_DEMAND_STYLE_SMALLTILE; conversion->out->Xsize = rot->in->Ysize; conversion->out->Ysize = rot->in->Xsize; conversion->out->Xoffset = 0; conversion->out->Yoffset = rot->in->Xsize; break; default: g_assert( 0 ); /* Keep -Wall happy. */ return( 0 ); } vips_demand_hint( conversion->out, hint, rot->in, NULL ); if( vips_image_generate( conversion->out, vips_start_one, generate_fn, vips_stop_one, rot->in, rot ) ) return( -1 ); return( 0 ); }
/* Write a VIPS image to a JPEG compress struct. */ static int write_vips( Write *write, int qfac, const char *profile, gboolean optimize_coding, gboolean progressive, gboolean strip, gboolean no_subsample, gboolean trellis_quant, gboolean overshoot_deringing, gboolean optimize_scans, int quant_table ) { VipsImage *in; J_COLOR_SPACE space; /* The image we'll be writing ... can change, see CMYK. */ in = write->in; /* Should have been converted for save. */ g_assert( in->BandFmt == VIPS_FORMAT_UCHAR ); g_assert( in->Coding == VIPS_CODING_NONE ); g_assert( in->Bands == 1 || in->Bands == 3 || in->Bands == 4 ); /* Check input image. */ if( vips_image_pio_input( in ) ) return( -1 ); /* Set compression parameters. */ write->cinfo.image_width = in->Xsize; write->cinfo.image_height = in->Ysize; write->cinfo.input_components = in->Bands; if( in->Bands == 4 && in->Type == VIPS_INTERPRETATION_CMYK ) { space = JCS_CMYK; /* IJG always sets an Adobe marker, so we should invert CMYK. */ if( vips_invert( in, &write->inverted, NULL ) ) return( -1 ); in = write->inverted; } else if( in->Bands == 3 ) space = JCS_RGB; else if( in->Bands == 1 ) space = JCS_GRAYSCALE; else /* Use luminance compression for all channels. */ space = JCS_UNKNOWN; write->cinfo.in_color_space = space; /* Build VIPS output stuff now we know the image we'll be writing. */ if( !(write->row_pointer = VIPS_ARRAY( NULL, in->Ysize, JSAMPROW )) ) return( -1 ); #ifdef HAVE_JPEG_EXT_PARAMS /* Reset compression profile to libjpeg defaults */ if( jpeg_c_int_param_supported( &write->cinfo, JINT_COMPRESS_PROFILE ) ) jpeg_c_set_int_param( &write->cinfo, JINT_COMPRESS_PROFILE, JCP_FASTEST ); #endif /* Reset to default. */ jpeg_set_defaults( &write->cinfo ); /* Compute optimal Huffman coding tables. */ write->cinfo.optimize_coding = optimize_coding; #ifdef HAVE_JPEG_EXT_PARAMS /* Apply trellis quantisation to each 8x8 block. Implies * "optimize_coding". */ if( trellis_quant ) { if( jpeg_c_bool_param_supported( &write->cinfo, JBOOLEAN_TRELLIS_QUANT ) ) { jpeg_c_set_bool_param( &write->cinfo, JBOOLEAN_TRELLIS_QUANT, TRUE ); write->cinfo.optimize_coding = TRUE; } else vips_warn( "vips2jpeg", "%s", _( "trellis_quant unsupported" ) ); } /* Apply overshooting to samples with extreme values e.g. 0 & 255 * for 8-bit. */ if( overshoot_deringing ) { if( jpeg_c_bool_param_supported( &write->cinfo, JBOOLEAN_OVERSHOOT_DERINGING ) ) jpeg_c_set_bool_param( &write->cinfo, JBOOLEAN_OVERSHOOT_DERINGING, TRUE ); else vips_warn( "vips2jpeg", "%s", _( "overshoot_deringing unsupported" ) ); } /* Split the spectrum of DCT coefficients into separate scans. * Requires progressive output. Must be set before * jpeg_simple_progression. */ if( optimize_scans ) { if( progressive ) { if( jpeg_c_bool_param_supported( &write->cinfo, JBOOLEAN_OPTIMIZE_SCANS ) ) jpeg_c_set_bool_param( &write->cinfo, JBOOLEAN_OPTIMIZE_SCANS, TRUE ); else vips_warn( "vips2jpeg", "%s", _( "Ignoring optimize_scans" ) ); } else vips_warn( "vips2jpeg", "%s", _( "Ignoring optimize_scans for baseline" ) ); } /* Use predefined quantization table. */ if( quant_table > 0 ) { if( jpeg_c_int_param_supported( &write->cinfo, JINT_BASE_QUANT_TBL_IDX ) ) jpeg_c_set_int_param( &write->cinfo, JINT_BASE_QUANT_TBL_IDX, quant_table ); else vips_warn( "vips2jpeg", "%s", _( "Setting quant_table unsupported" ) ); } #else /* Using jpeglib.h without extension parameters, warn of ignored * options. */ if( trellis_quant ) vips_warn( "vips2jpeg", "%s", _( "Ignoring trellis_quant" ) ); if( overshoot_deringing ) vips_warn( "vips2jpeg", "%s", _( "Ignoring overshoot_deringing" ) ); if( optimize_scans ) vips_warn( "vips2jpeg", "%s", _( "Ignoring optimize_scans" ) ); if( quant_table > 0 ) vips_warn( "vips2jpeg", "%s", _( "Ignoring quant_table" ) ); #endif /* Set compression quality. Must be called after setting params above. */ jpeg_set_quality( &write->cinfo, qfac, TRUE ); /* Enable progressive write. */ if( progressive ) jpeg_simple_progression( &write->cinfo ); /* Turn off chroma subsampling. Follow IM and do it automatically for * high Q. */ if( no_subsample || qfac > 90 ) { int i; for( i = 0; i < in->Bands; i++ ) { write->cinfo.comp_info[i].h_samp_factor = 1; write->cinfo.comp_info[i].v_samp_factor = 1; } } /* Don't write the APP0 JFIF headers if we are stripping. */ if( strip ) write->cinfo.write_JFIF_header = FALSE; /* Build compress tables. */ jpeg_start_compress( &write->cinfo, TRUE ); /* Write any APP markers we need. */ if( !strip ) { if( write_exif( write ) || write_blob( write, VIPS_META_XMP_NAME, JPEG_APP0 + 1 ) || write_blob( write, VIPS_META_IPCT_NAME, JPEG_APP0 + 13 ) ) return( -1 ); /* A profile supplied as an argument overrides an embedded * profile. "none" means don't attach a profile. */ if( profile && strcmp( profile, "none" ) != 0 && write_profile_file( write, profile ) ) return( -1 ); if( !profile && vips_image_get_typeof( in, VIPS_META_ICC_NAME ) && write_profile_meta( write ) ) return( -1 ); } /* Write data. Note that the write function grabs the longjmp()! */ if( vips_sink_disc( in, write_jpeg_block, write ) ) return( -1 ); /* We have to reinstate the setjmp() before we jpeg_finish_compress(). */ if( setjmp( write->eman.jmp ) ) return( -1 ); jpeg_finish_compress( &write->cinfo ); return( 0 ); }