/
vips-emscripten.cpp
2012 lines (1913 loc) · 98.6 KB
/
vips-emscripten.cpp
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#include "bindings/connection.h"
#include "bindings/image.h"
#include "bindings/interpolate.h"
#include "bindings/object.h"
#include "bindings/utils.h"
#include <emscripten/bind.h>
#include <emscripten/val.h>
#include <emscripten/version.h>
#ifdef WASMFS
#include <emscripten/wasmfs.h>
#endif
#include <vips/vips.h>
using namespace emscripten;
using vips::Connection;
using vips::Image;
using vips::Interpolate;
using vips::Object;
using vips::Option;
using vips::Source;
using vips::SourceCustom;
using vips::Target;
using vips::TargetCustom;
#ifdef WASMFS
EM_JS(bool, is_node, (), { return ENVIRONMENT_IS_NODE; });
#endif
int main() {
if (vips_init("wasm-vips") != 0)
vips_error_exit("unable to start up libvips");
// By default, libvips' operation cache will (at its maximum):
// - cache 100 operations;
// - spend 100mb of memory;
// - hold 100 files open;
// We need to lower these numbers for WASM a bit.
vips_cache_set_max_mem(50 * 1024 * 1024); // = 50mb
vips_cache_set_max_files(20);
#ifdef WASMFS
if (is_node()) {
int err = wasmfs_create_directory("root", 0777,
wasmfs_create_node_backend("."));
g_assert(err == 0);
err = chdir("root");
g_assert(err == 0);
}
#endif
// Handy for debugging.
// vips_leak_set(1);
emscripten_exit_with_live_runtime();
return 0;
}
EM_JS(void, shutdown_js, (), {
exitRuntime();
});
struct TrimResult {
int left;
int top;
int width;
int height;
};
struct ColumnsRowsResult {
Image columns;
Image rows;
};
struct Cache {};
struct Stats {};
struct Error {};
struct Utils {};
/**
* Note: this was partially generated automatically.
*/
EMSCRIPTEN_BINDINGS(my_module) {
// Auto-generated enums
enum_<VipsBandFormat>("BandFormat")
.value("notset", VIPS_FORMAT_NOTSET)
.value("uchar", VIPS_FORMAT_UCHAR)
.value("char", VIPS_FORMAT_CHAR)
.value("ushort", VIPS_FORMAT_USHORT)
.value("short", VIPS_FORMAT_SHORT)
.value("uint", VIPS_FORMAT_UINT)
.value("int", VIPS_FORMAT_INT)
.value("float", VIPS_FORMAT_FLOAT)
.value("complex", VIPS_FORMAT_COMPLEX)
.value("double", VIPS_FORMAT_DOUBLE)
.value("dpcomplex", VIPS_FORMAT_DPCOMPLEX);
enum_<VipsBlendMode>("BlendMode")
.value("clear", VIPS_BLEND_MODE_CLEAR)
.value("source", VIPS_BLEND_MODE_SOURCE)
.value("over", VIPS_BLEND_MODE_OVER)
.value("in", VIPS_BLEND_MODE_IN)
.value("out", VIPS_BLEND_MODE_OUT)
.value("atop", VIPS_BLEND_MODE_ATOP)
.value("dest", VIPS_BLEND_MODE_DEST)
.value("dest_over", VIPS_BLEND_MODE_DEST_OVER)
.value("dest_in", VIPS_BLEND_MODE_DEST_IN)
.value("dest_out", VIPS_BLEND_MODE_DEST_OUT)
.value("dest_atop", VIPS_BLEND_MODE_DEST_ATOP)
.value("xor", VIPS_BLEND_MODE_XOR)
.value("add", VIPS_BLEND_MODE_ADD)
.value("saturate", VIPS_BLEND_MODE_SATURATE)
.value("multiply", VIPS_BLEND_MODE_MULTIPLY)
.value("screen", VIPS_BLEND_MODE_SCREEN)
.value("overlay", VIPS_BLEND_MODE_OVERLAY)
.value("darken", VIPS_BLEND_MODE_DARKEN)
.value("lighten", VIPS_BLEND_MODE_LIGHTEN)
.value("colour_dodge", VIPS_BLEND_MODE_COLOUR_DODGE)
.value("colour_burn", VIPS_BLEND_MODE_COLOUR_BURN)
.value("hard_light", VIPS_BLEND_MODE_HARD_LIGHT)
.value("soft_light", VIPS_BLEND_MODE_SOFT_LIGHT)
.value("difference", VIPS_BLEND_MODE_DIFFERENCE)
.value("exclusion", VIPS_BLEND_MODE_EXCLUSION);
enum_<VipsCoding>("Coding")
.value("error", VIPS_CODING_ERROR)
.value("none", VIPS_CODING_NONE)
.value("labq", VIPS_CODING_LABQ)
.value("rad", VIPS_CODING_RAD);
enum_<VipsInterpretation>("Interpretation")
.value("error", VIPS_INTERPRETATION_ERROR)
.value("multiband", VIPS_INTERPRETATION_MULTIBAND)
.value("b_w", VIPS_INTERPRETATION_B_W)
.value("histogram", VIPS_INTERPRETATION_HISTOGRAM)
.value("xyz", VIPS_INTERPRETATION_XYZ)
.value("lab", VIPS_INTERPRETATION_LAB)
.value("cmyk", VIPS_INTERPRETATION_CMYK)
.value("labq", VIPS_INTERPRETATION_LABQ)
.value("rgb", VIPS_INTERPRETATION_RGB)
.value("cmc", VIPS_INTERPRETATION_CMC)
.value("lch", VIPS_INTERPRETATION_LCH)
.value("labs", VIPS_INTERPRETATION_LABS)
.value("srgb", VIPS_INTERPRETATION_sRGB)
.value("yxy", VIPS_INTERPRETATION_YXY)
.value("fourier", VIPS_INTERPRETATION_FOURIER)
.value("rgb16", VIPS_INTERPRETATION_RGB16)
.value("grey16", VIPS_INTERPRETATION_GREY16)
.value("matrix", VIPS_INTERPRETATION_MATRIX)
.value("scrgb", VIPS_INTERPRETATION_scRGB)
.value("hsv", VIPS_INTERPRETATION_HSV);
enum_<VipsDemandStyle>("DemandStyle")
.value("error", VIPS_DEMAND_STYLE_ERROR)
.value("smalltile", VIPS_DEMAND_STYLE_SMALLTILE)
.value("fatstrip", VIPS_DEMAND_STYLE_FATSTRIP)
.value("thinstrip", VIPS_DEMAND_STYLE_THINSTRIP);
enum_<VipsOperationRelational>("OperationRelational")
.value("equal", VIPS_OPERATION_RELATIONAL_EQUAL)
.value("noteq", VIPS_OPERATION_RELATIONAL_NOTEQ)
.value("less", VIPS_OPERATION_RELATIONAL_LESS)
.value("lesseq", VIPS_OPERATION_RELATIONAL_LESSEQ)
.value("more", VIPS_OPERATION_RELATIONAL_MORE)
.value("moreeq", VIPS_OPERATION_RELATIONAL_MOREEQ);
enum_<VipsOperationBoolean>("OperationBoolean")
.value("and", VIPS_OPERATION_BOOLEAN_AND)
.value("or", VIPS_OPERATION_BOOLEAN_OR)
.value("eor", VIPS_OPERATION_BOOLEAN_EOR)
.value("lshift", VIPS_OPERATION_BOOLEAN_LSHIFT)
.value("rshift", VIPS_OPERATION_BOOLEAN_RSHIFT);
enum_<VipsOperationMath2>("OperationMath2")
.value("pow", VIPS_OPERATION_MATH2_POW)
.value("wop", VIPS_OPERATION_MATH2_WOP)
.value("atan2", VIPS_OPERATION_MATH2_ATAN2);
enum_<VipsOperationComplex2>("OperationComplex2")
.value("cross_phase", VIPS_OPERATION_COMPLEX2_CROSS_PHASE);
enum_<VipsOperationMath>("OperationMath")
.value("sin", VIPS_OPERATION_MATH_SIN)
.value("cos", VIPS_OPERATION_MATH_COS)
.value("tan", VIPS_OPERATION_MATH_TAN)
.value("asin", VIPS_OPERATION_MATH_ASIN)
.value("acos", VIPS_OPERATION_MATH_ACOS)
.value("atan", VIPS_OPERATION_MATH_ATAN)
.value("log", VIPS_OPERATION_MATH_LOG)
.value("log10", VIPS_OPERATION_MATH_LOG10)
.value("exp", VIPS_OPERATION_MATH_EXP)
.value("exp10", VIPS_OPERATION_MATH_EXP10)
.value("sinh", VIPS_OPERATION_MATH_SINH)
.value("cosh", VIPS_OPERATION_MATH_COSH)
.value("tanh", VIPS_OPERATION_MATH_TANH)
.value("asinh", VIPS_OPERATION_MATH_ASINH)
.value("acosh", VIPS_OPERATION_MATH_ACOSH)
.value("atanh", VIPS_OPERATION_MATH_ATANH);
enum_<VipsOperationRound>("OperationRound")
.value("rint", VIPS_OPERATION_ROUND_RINT)
.value("ceil", VIPS_OPERATION_ROUND_CEIL)
.value("floor", VIPS_OPERATION_ROUND_FLOOR);
enum_<VipsOperationComplex>("OperationComplex")
.value("polar", VIPS_OPERATION_COMPLEX_POLAR)
.value("rect", VIPS_OPERATION_COMPLEX_RECT)
.value("conj", VIPS_OPERATION_COMPLEX_CONJ);
enum_<VipsOperationComplexget>("OperationComplexget")
.value("real", VIPS_OPERATION_COMPLEXGET_REAL)
.value("imag", VIPS_OPERATION_COMPLEXGET_IMAG);
enum_<VipsCombine>("Combine")
.value("max", VIPS_COMBINE_MAX)
.value("sum", VIPS_COMBINE_SUM)
.value("min", VIPS_COMBINE_MIN);
enum_<VipsAccess>("Access")
.value("random", VIPS_ACCESS_RANDOM)
.value("sequential", VIPS_ACCESS_SEQUENTIAL)
.value("sequential_unbuffered", VIPS_ACCESS_SEQUENTIAL_UNBUFFERED);
enum_<VipsExtend>("Extend")
.value("black", VIPS_EXTEND_BLACK)
.value("copy", VIPS_EXTEND_COPY)
.value("repeat", VIPS_EXTEND_REPEAT)
.value("mirror", VIPS_EXTEND_MIRROR)
.value("white", VIPS_EXTEND_WHITE)
.value("background", VIPS_EXTEND_BACKGROUND);
enum_<VipsCompassDirection>("CompassDirection")
.value("centre", VIPS_COMPASS_DIRECTION_CENTRE)
.value("north", VIPS_COMPASS_DIRECTION_NORTH)
.value("east", VIPS_COMPASS_DIRECTION_EAST)
.value("south", VIPS_COMPASS_DIRECTION_SOUTH)
.value("west", VIPS_COMPASS_DIRECTION_WEST)
.value("north_east", VIPS_COMPASS_DIRECTION_NORTH_EAST)
.value("south_east", VIPS_COMPASS_DIRECTION_SOUTH_EAST)
.value("south_west", VIPS_COMPASS_DIRECTION_SOUTH_WEST)
.value("north_west", VIPS_COMPASS_DIRECTION_NORTH_WEST);
enum_<VipsDirection>("Direction")
.value("horizontal", VIPS_DIRECTION_HORIZONTAL)
.value("vertical", VIPS_DIRECTION_VERTICAL);
enum_<VipsAlign>("Align")
.value("low", VIPS_ALIGN_LOW)
.value("centre", VIPS_ALIGN_CENTRE)
.value("high", VIPS_ALIGN_HIGH);
enum_<VipsInteresting>("Interesting")
.value("none", VIPS_INTERESTING_NONE)
.value("centre", VIPS_INTERESTING_CENTRE)
.value("entropy", VIPS_INTERESTING_ENTROPY)
.value("attention", VIPS_INTERESTING_ATTENTION)
.value("low", VIPS_INTERESTING_LOW)
.value("high", VIPS_INTERESTING_HIGH)
.value("all", VIPS_INTERESTING_ALL);
enum_<VipsAngle>("Angle")
.value("d0", VIPS_ANGLE_D0)
.value("d90", VIPS_ANGLE_D90)
.value("d180", VIPS_ANGLE_D180)
.value("d270", VIPS_ANGLE_D270);
enum_<VipsAngle45>("Angle45")
.value("d0", VIPS_ANGLE45_D0)
.value("d45", VIPS_ANGLE45_D45)
.value("d90", VIPS_ANGLE45_D90)
.value("d135", VIPS_ANGLE45_D135)
.value("d180", VIPS_ANGLE45_D180)
.value("d225", VIPS_ANGLE45_D225)
.value("d270", VIPS_ANGLE45_D270)
.value("d315", VIPS_ANGLE45_D315);
enum_<VipsPrecision>("Precision")
.value("integer", VIPS_PRECISION_INTEGER)
.value("float", VIPS_PRECISION_FLOAT)
.value("approximate", VIPS_PRECISION_APPROXIMATE);
enum_<VipsFailOn>("FailOn")
.value("none", VIPS_FAIL_ON_NONE)
.value("truncated", VIPS_FAIL_ON_TRUNCATED)
.value("error", VIPS_FAIL_ON_ERROR)
.value("warning", VIPS_FAIL_ON_WARNING);
enum_<VipsForeignPpmFormat>("ForeignPpmFormat")
.value("pbm", VIPS_FOREIGN_PPM_FORMAT_PBM)
.value("pgm", VIPS_FOREIGN_PPM_FORMAT_PGM)
.value("ppm", VIPS_FOREIGN_PPM_FORMAT_PPM)
.value("pfm", VIPS_FOREIGN_PPM_FORMAT_PFM);
enum_<VipsForeignSubsample>("ForeignSubsample")
.value("auto", VIPS_FOREIGN_SUBSAMPLE_AUTO)
.value("on", VIPS_FOREIGN_SUBSAMPLE_ON)
.value("off", VIPS_FOREIGN_SUBSAMPLE_OFF);
enum_<VipsForeignDzLayout>("ForeignDzLayout")
.value("dz", VIPS_FOREIGN_DZ_LAYOUT_DZ)
.value("zoomify", VIPS_FOREIGN_DZ_LAYOUT_ZOOMIFY)
.value("google", VIPS_FOREIGN_DZ_LAYOUT_GOOGLE)
.value("iiif", VIPS_FOREIGN_DZ_LAYOUT_IIIF)
.value("iiif3", VIPS_FOREIGN_DZ_LAYOUT_IIIF3);
enum_<VipsForeignDzDepth>("ForeignDzDepth")
.value("onepixel", VIPS_FOREIGN_DZ_DEPTH_ONEPIXEL)
.value("onetile", VIPS_FOREIGN_DZ_DEPTH_ONETILE)
.value("one", VIPS_FOREIGN_DZ_DEPTH_ONE);
enum_<VipsForeignDzContainer>("ForeignDzContainer")
.value("fs", VIPS_FOREIGN_DZ_CONTAINER_FS)
.value("zip", VIPS_FOREIGN_DZ_CONTAINER_ZIP)
.value("szi", VIPS_FOREIGN_DZ_CONTAINER_SZI);
enum_<VipsRegionShrink>("RegionShrink")
.value("mean", VIPS_REGION_SHRINK_MEAN)
.value("median", VIPS_REGION_SHRINK_MEDIAN)
.value("mode", VIPS_REGION_SHRINK_MODE)
.value("max", VIPS_REGION_SHRINK_MAX)
.value("min", VIPS_REGION_SHRINK_MIN)
.value("nearest", VIPS_REGION_SHRINK_NEAREST);
enum_<VipsForeignWebpPreset>("ForeignWebpPreset")
.value("default", VIPS_FOREIGN_WEBP_PRESET_DEFAULT)
.value("picture", VIPS_FOREIGN_WEBP_PRESET_PICTURE)
.value("photo", VIPS_FOREIGN_WEBP_PRESET_PHOTO)
.value("drawing", VIPS_FOREIGN_WEBP_PRESET_DRAWING)
.value("icon", VIPS_FOREIGN_WEBP_PRESET_ICON)
.value("text", VIPS_FOREIGN_WEBP_PRESET_TEXT);
enum_<VipsForeignTiffCompression>("ForeignTiffCompression")
.value("none", VIPS_FOREIGN_TIFF_COMPRESSION_NONE)
.value("jpeg", VIPS_FOREIGN_TIFF_COMPRESSION_JPEG)
.value("deflate", VIPS_FOREIGN_TIFF_COMPRESSION_DEFLATE)
.value("packbits", VIPS_FOREIGN_TIFF_COMPRESSION_PACKBITS)
.value("ccittfax4", VIPS_FOREIGN_TIFF_COMPRESSION_CCITTFAX4)
.value("lzw", VIPS_FOREIGN_TIFF_COMPRESSION_LZW)
.value("webp", VIPS_FOREIGN_TIFF_COMPRESSION_WEBP)
.value("zstd", VIPS_FOREIGN_TIFF_COMPRESSION_ZSTD)
.value("jp2k", VIPS_FOREIGN_TIFF_COMPRESSION_JP2K);
enum_<VipsForeignTiffPredictor>("ForeignTiffPredictor")
.value("none", VIPS_FOREIGN_TIFF_PREDICTOR_NONE)
.value("horizontal", VIPS_FOREIGN_TIFF_PREDICTOR_HORIZONTAL)
.value("float", VIPS_FOREIGN_TIFF_PREDICTOR_FLOAT);
enum_<VipsForeignTiffResunit>("ForeignTiffResunit")
.value("cm", VIPS_FOREIGN_TIFF_RESUNIT_CM)
.value("inch", VIPS_FOREIGN_TIFF_RESUNIT_INCH);
enum_<VipsForeignHeifCompression>("ForeignHeifCompression")
.value("hevc", VIPS_FOREIGN_HEIF_COMPRESSION_HEVC)
.value("avc", VIPS_FOREIGN_HEIF_COMPRESSION_AVC)
.value("jpeg", VIPS_FOREIGN_HEIF_COMPRESSION_JPEG)
.value("av1", VIPS_FOREIGN_HEIF_COMPRESSION_AV1);
enum_<VipsSize>("Size")
.value("both", VIPS_SIZE_BOTH)
.value("up", VIPS_SIZE_UP)
.value("down", VIPS_SIZE_DOWN)
.value("force", VIPS_SIZE_FORCE);
enum_<VipsIntent>("Intent")
.value("perceptual", VIPS_INTENT_PERCEPTUAL)
.value("relative", VIPS_INTENT_RELATIVE)
.value("saturation", VIPS_INTENT_SATURATION)
.value("absolute", VIPS_INTENT_ABSOLUTE);
enum_<VipsKernel>("Kernel")
.value("nearest", VIPS_KERNEL_NEAREST)
.value("linear", VIPS_KERNEL_LINEAR)
.value("cubic", VIPS_KERNEL_CUBIC)
.value("mitchell", VIPS_KERNEL_MITCHELL)
.value("lanczos2", VIPS_KERNEL_LANCZOS2)
.value("lanczos3", VIPS_KERNEL_LANCZOS3);
enum_<VipsPCS>("PCS")
.value("lab", VIPS_PCS_LAB)
.value("xyz", VIPS_PCS_XYZ);
enum_<VipsOperationMorphology>("OperationMorphology")
.value("erode", VIPS_OPERATION_MORPHOLOGY_ERODE)
.value("dilate", VIPS_OPERATION_MORPHOLOGY_DILATE);
enum_<VipsCombineMode>("CombineMode")
.value("set", VIPS_COMBINE_MODE_SET)
.value("add", VIPS_COMBINE_MODE_ADD);
enum_<VipsForeignPngFilter>("ForeignPngFilter")
.value("none", VIPS_FOREIGN_PNG_FILTER_NONE)
.value("sub", VIPS_FOREIGN_PNG_FILTER_SUB)
.value("up", VIPS_FOREIGN_PNG_FILTER_UP)
.value("avg", VIPS_FOREIGN_PNG_FILTER_AVG)
.value("paeth", VIPS_FOREIGN_PNG_FILTER_PAETH)
.value("all", VIPS_FOREIGN_PNG_FILTER_ALL);
// Handwritten value objects
value_object<TrimResult>("trimResult")
.field("left", &TrimResult::left)
.field("top", &TrimResult::top)
.field("width", &TrimResult::width)
.field("height", &TrimResult::height);
value_object<ColumnsRowsResult>("columnsRowsResult")
.field("columns", &ColumnsRowsResult::columns)
.field("rows", &ColumnsRowsResult::rows);
// Register non-arithmetic vector bindings
register_vector<Image>("VectorImage");
register_vector<std::string>("VectorString");
// Register arithmetic vector bindings
register_vector<int>("VectorInt");
register_vector<double>("VectorDouble");
function("concurrency", &vips_concurrency_set);
function("concurrency", &vips_concurrency_get);
function("version", &vips_version);
function("version", optional_override([]() {
return std::string(VIPS_VERSION);
}));
function("emscriptenVersion", optional_override([]() {
std::string major = std::to_string(__EMSCRIPTEN_major__);
std::string minor = std::to_string(__EMSCRIPTEN_minor__);
std::string patch = std::to_string(__EMSCRIPTEN_tiny__);
return major + "." + minor + "." + patch;
}));
function("config", optional_override([]() {
return vips::replace_all(VIPS_CONFIG, ", ", "\n");
}));
function("blockUntrusted", optional_override([](bool state) {
vips_block_untrusted_set(state ? 1 : 0);
}));
function("operationBlock",
optional_override([](const std::string &name, bool state) {
vips_operation_block_set(name.c_str(), state ? 1 : 0);
}));
// Helper for Node.js to shutdown libvips and the runtime of Emscripten
function("shutdown", optional_override([]() {
shutdown_js();
}));
// Cache class
class_<Cache>("Cache")
.constructor<>()
.class_function("max", &vips_cache_set_max)
.class_function("max", &vips_cache_get_max)
.class_function("maxMem", &vips_cache_set_max_mem)
.class_function("maxMem", &vips_cache_get_max_mem)
.class_function("maxFiles", &vips_cache_set_max_files)
.class_function("maxFiles", &vips_cache_get_max_files)
.class_function("size", &vips_cache_get_size);
// Stats class
class_<Stats>("Stats")
.constructor<>()
.class_function("allocations", &vips_tracked_get_allocs)
.class_function("mem", &vips_tracked_get_mem)
.class_function("memHighwater", &vips_tracked_get_mem_highwater)
.class_function("files", &vips_tracked_get_files);
// Error class
class_<Error>("Error")
.constructor<>()
.class_function("buffer", optional_override([]() {
return std::string(vips_error_buffer());
}))
.class_function("clear", &vips_error_clear);
// Utils class
class_<Utils>("Utils")
.constructor<>()
.class_function(
"typeFind", optional_override([](const std::string &basename,
const std::string &nickname) {
return vips_type_find(basename.c_str(), nickname.c_str());
}))
.class_function("tempName",
optional_override([](const std::string &format) {
char *name = vips__temp_name(format.c_str());
std::string result(name);
g_free(name);
return result;
}));
// Base class
class_<Object>("Object");
// Interpolate class
class_<Interpolate, base<Object>>("Interpolate")
.constructor<>()
// Handwritten class functions
.class_function("newFromName", &Interpolate::new_from_name);
// Connection class
class_<Connection, base<Object>>("Connection")
.constructor<>()
// Handwritten properties
.property("filename", &Connection::filename)
.property("nick", &Connection::nick);
// Source class
class_<Source, base<Connection>>("Source")
.constructor<>()
// Handwritten class functions
.class_function("newFromFile", &Source::new_from_file)
.class_function("newFromMemory", &Source::new_from_memory);
// SourceCustom class
class_<SourceCustom, base<Source>>("SourceCustom")
.constructor<>()
// Handwritten setters
.property("onRead", &SourceCustom::stub_getter,
&SourceCustom::set_read_callback)
.property("onSeek", &SourceCustom::stub_getter,
&SourceCustom::set_seek_callback);
// Target class
class_<Target, base<Connection>>("Target")
.constructor<>()
// Handwritten class functions
.class_function("newToFile", &Target::new_to_file)
.class_function("newToMemory", &Target::new_to_memory)
// Handwritten functions
.function("getBlob", &Target::get_blob);
// TargetCustom class
class_<TargetCustom, base<Target>>("TargetCustom")
.constructor<>()
// Handwritten setters
.property("onWrite", &TargetCustom::stub_getter,
&TargetCustom::set_write_callback)
.property("onRead", &TargetCustom::stub_getter,
&TargetCustom::set_read_callback)
.property("onSeek", &TargetCustom::stub_getter,
&TargetCustom::set_seek_callback)
.property("onEnd", &TargetCustom::stub_getter,
&TargetCustom::set_end_callback);
// Image class
class_<Image, base<Object>>("Image")
.constructor<>()
// Handwritten class functions
.class_function("newMemory", &Image::new_memory)
.class_function("newTempFile", &Image::new_temp_file)
.class_function("newTempFile", optional_override([]() {
return Image::new_temp_file("%s.v");
}))
.class_function("newFromFile", &Image::new_from_file)
.class_function("newFromFile",
optional_override([](const std::string &name) {
return Image::new_from_file(name);
}))
.class_function(
"newFromMemory",
select_overload<Image(const std::string &, int, int, int,
emscripten::val)>(&Image::new_from_memory))
.class_function(
"newFromMemory",
select_overload<Image(uintptr_t, size_t, int, int, int,
emscripten::val)>(&Image::new_from_memory))
.class_function("newFromBuffer", &Image::new_from_buffer)
.class_function("newFromBuffer",
optional_override([](const std::string &buffer,
const std::string &option_string) {
return Image::new_from_buffer(buffer,
option_string);
}))
.class_function("newFromBuffer",
optional_override([](const std::string &buffer) {
return Image::new_from_buffer(buffer);
}))
.class_function("newFromSource", &Image::new_from_source)
.class_function("newFromSource",
optional_override([](const Source &source,
const std::string &option_string) {
return Image::new_from_source(source,
option_string);
}))
.class_function("newFromSource",
optional_override([](const Source &source) {
return Image::new_from_source(source);
}))
.class_function("newMatrix",
select_overload<Image(int, int)>(&Image::new_matrix))
.class_function("newMatrix",
select_overload<Image(int, int, emscripten::val)>(
&Image::new_matrix))
.class_function("newFromArray", &Image::new_from_array)
.class_function(
"newFromArray",
optional_override([](emscripten::val array, double scale) {
return Image::new_from_array(array, scale);
}))
.class_function("newFromArray",
optional_override([](emscripten::val array) {
return Image::new_from_array(array);
}))
.class_function(
"composite",
optional_override([](emscripten::val in, emscripten::val mode,
emscripten::val js_options) {
Image out;
Image::call("composite", nullptr,
(new Option)
->set("out", &out)
->set("in", VIPS_TYPE_ARRAY_IMAGE, in)
->set("mode", vips::blend_modes_to_int(mode)),
js_options);
return out;
}))
.class_function(
"composite",
optional_override([](emscripten::val in, emscripten::val mode) {
Image out;
Image::call("composite", nullptr,
(new Option)
->set("out", &out)
->set("in", VIPS_TYPE_ARRAY_IMAGE, in)
->set("mode", vips::blend_modes_to_int(mode)));
return out;
}))
// Handwritten functions
.function("isImage",
optional_override([](const Image &image) { return true; }))
.function(
"setInt",
select_overload<void(const std::string &, int) const>(&Image::set))
.function(
"setArrayInt",
select_overload<void(const std::string &, const std::vector<int> &)
const>(&Image::set))
.function("setArrayDouble",
select_overload<void(const std::string &,
const std::vector<double> &) const>(
&Image::set))
.function("setDouble",
select_overload<void(const std::string &, double) const>(
&Image::set))
.function("setString",
select_overload<void(const std::string &, const std::string &)
const>(&Image::set))
.function("setBlob",
select_overload<void(const std::string &, const std::string &)
const>(&Image::set_blob))
.function(
"setBlob",
select_overload<void(const std::string &, uintptr_t, size_t) const>(
&Image::set_blob))
.function("getTypeof", &Image::get_typeof)
.function("getInt", &Image::get_int)
.function("getArrayInt", &Image::get_array_int)
.function("getArrayDouble", &Image::get_array_double)
.function("getDouble", &Image::get_double)
.function("getString", &Image::get_string)
.function("getBlob", &Image::get_blob)
.function("getFields", &Image::get_fields)
.function("remove", &Image::remove)
.function("hasAlpha", &Image::has_alpha)
.function("setDeleteOnClose", &Image::set_delete_on_close)
.function("newFromImage", &Image::new_from_image)
.function("copyMemory", &Image::copy_memory)
.function("write", &Image::write)
.function("writeToFile", &Image::write_to_file)
.function("writeToFile", optional_override([](const Image &image,
const std::string &name) {
return image.write_to_file(name);
}))
.function("writeToBuffer", &Image::write_to_buffer)
.function("writeToBuffer",
optional_override(
[](const Image &image, const std::string &suffix) {
return image.write_to_buffer(suffix);
}))
.function("writeToTarget", &Image::write_to_target)
.function("writeToTarget",
optional_override([](const Image &image, const Target &target,
const std::string &suffix) {
return image.write_to_target(target, suffix);
}))
.function("writeToMemory", &Image::write_to_memory)
.function("findTrim", optional_override([](const Image &image,
emscripten::val js_options) {
int left, top, width, height;
left = image.find_trim(&top, &width, &height, js_options);
return TrimResult{left, top, width, height};
}))
.function("findTrim", optional_override([](const Image &image) {
int left, top, width, height;
left = image.find_trim(&top, &width, &height);
return TrimResult{left, top, width, height};
}))
.function("profile", optional_override([](const Image &image) {
Image columns, rows;
columns = image.profile(&rows);
return ColumnsRowsResult{columns, rows};
}))
.function("project", optional_override([](const Image &image) {
Image columns, rows;
columns = image.project(&rows);
return ColumnsRowsResult{columns, rows};
}))
.function("bandsplit", optional_override([](const Image &image) {
std::vector<Image> b(image.bands());
for (int i = 0; i < image.bands(); ++i)
b[i] = image.extract_band(i);
return b;
}))
// bandjoin, bandrank and composite will appear as a class functions,
// but using them as instance method is more convenient.
.function("bandjoin",
optional_override([](const Image &image, emscripten::val in) {
std::vector<Image> v = image.imageize_vector(in);
v.insert(v.begin(), image);
Image out;
Image::call("bandjoin", nullptr,
(new Option)->set("out", &out)->set("in", v));
return out;
}))
.function("bandrank",
optional_override([](const Image &image, emscripten::val in,
emscripten::val js_options) {
std::vector<Image> v = image.imageize_vector(in);
v.insert(v.begin(), image);
Image out;
Image::call("bandrank", nullptr,
(new Option)->set("out", &out)->set("in", v),
js_options);
return out;
}))
.function("bandrank",
optional_override([](const Image &image, emscripten::val in) {
std::vector<Image> v = image.imageize_vector(in);
v.insert(v.begin(), image);
Image out;
Image::call("bandrank", nullptr,
(new Option)->set("out", &out)->set("in", v));
return out;
}))
.function("composite", &Image::composite)
.function("composite",
optional_override([](const Image &image, emscripten::val in,
emscripten::val mode) {
return image.composite(in, mode);
}))
// extra useful utility functions.
.function("minPos", optional_override([](const Image &image) {
std::vector<double> xy(2);
image.call("min", (new Option)
->set("in", image)
->set("x", &xy[0])
->set("y", &xy[1]));
return xy;
}))
.function("maxPos", optional_override([](const Image &image) {
std::vector<double> xy(2);
image.call("max", (new Option)
->set("in", image)
->set("x", &xy[0])
->set("y", &xy[1]));
return xy;
}))
.function("linear",
select_overload<Image(emscripten::val, emscripten::val,
emscripten::val) const>(&Image::linear))
.function("linear",
optional_override(
[](const Image &image, emscripten::val a,
emscripten::val b) { return image.linear(a, b); }))
// enum functions
.function("flip",
select_overload<Image(emscripten::val) const>(&Image::flip))
.function("flip", optional_override([](const Image &image,
emscripten::val direction) {
return image.flip(direction);
}))
.function("flipHor", optional_override([](const Image &image) {
return image.flip(VIPS_DIRECTION_HORIZONTAL);
}))
.function("flipVer", optional_override([](const Image &image) {
return image.flip(VIPS_DIRECTION_VERTICAL);
}))
.function("rot",
select_overload<Image(emscripten::val) const>(&Image::rot))
.function("rot90", optional_override([](const Image &image) {
return image.rot(VIPS_ANGLE_D90);
}))
.function("rot180", optional_override([](const Image &image) {
return image.rot(VIPS_ANGLE_D180);
}))
.function("rot270", optional_override([](const Image &image) {
return image.rot(VIPS_ANGLE_D270);
}))
.function(
"morph",
select_overload<Image(emscripten::val, emscripten::val) const>(
&Image::morph))
.function("median", optional_override([](const Image &image) {
return image.rank(3, 3, (3 * 3) / 2);
}))
.function("median", optional_override([](const Image &image, int size) {
return image.rank(size, size, (size * size) / size);
}))
.function("round",
select_overload<Image(emscripten::val) const>(&Image::round))
.function("floor", optional_override([](const Image &image) {
return image.round(VIPS_OPERATION_ROUND_FLOOR);
}))
.function("ceil", optional_override([](const Image &image) {
return image.round(VIPS_OPERATION_ROUND_CEIL);
}))
.function("rint", optional_override([](const Image &image) {
return image.round(VIPS_OPERATION_ROUND_RINT);
}))
.function("bandbool", select_overload<Image(emscripten::val) const>(
&Image::bandbool))
.function("bandand", optional_override([](const Image &image) {
return image.bandbool(VIPS_OPERATION_BOOLEAN_AND);
}))
.function("bandor", optional_override([](const Image &image) {
return image.bandbool(VIPS_OPERATION_BOOLEAN_OR);
}))
.function("bandeor", optional_override([](const Image &image) {
return image.bandbool(VIPS_OPERATION_BOOLEAN_EOR);
}))
.function("complexget", select_overload<Image(emscripten::val) const>(
&Image::complexget))
.function("real", optional_override([](const Image &image) {
return image.complexget(VIPS_OPERATION_COMPLEXGET_REAL);
}))
.function("imag", optional_override([](const Image &image) {
return image.complexget(VIPS_OPERATION_COMPLEXGET_IMAG);
}))
.function("complex", select_overload<Image(emscripten::val) const>(
&Image::complex))
.function("polar", optional_override([](const Image &image) {
// TODO(kleisauke): Port `_run_cmplx` from pyvips?
return image.complex(VIPS_OPERATION_COMPLEX_POLAR);
}))
.function("rect", optional_override([](const Image &image) {
return image.complex(VIPS_OPERATION_COMPLEX_RECT);
}))
.function("conj", optional_override([](const Image &image) {
return image.complex(VIPS_OPERATION_COMPLEX_CONJ);
}))
.function("math",
select_overload<Image(emscripten::val) const>(&Image::math))
.function("sin", optional_override([](const Image &image) {
return image.math(VIPS_OPERATION_MATH_SIN);
}))
.function("cos", optional_override([](const Image &image) {
return image.math(VIPS_OPERATION_MATH_COS);
}))
.function("tan", optional_override([](const Image &image) {
return image.math(VIPS_OPERATION_MATH_TAN);
}))
.function("asin", optional_override([](const Image &image) {
return image.math(VIPS_OPERATION_MATH_ASIN);
}))
.function("acos", optional_override([](const Image &image) {
return image.math(VIPS_OPERATION_MATH_ACOS);
}))
.function("atan", optional_override([](const Image &image) {
return image.math(VIPS_OPERATION_MATH_ATAN);
}))
.function("sinh", optional_override([](const Image &image) {
return image.math(VIPS_OPERATION_MATH_SINH);
}))
.function("cosh", optional_override([](const Image &image) {
return image.math(VIPS_OPERATION_MATH_COSH);
}))
.function("tanh", optional_override([](const Image &image) {
return image.math(VIPS_OPERATION_MATH_TANH);
}))
.function("asinh", optional_override([](const Image &image) {
return image.math(VIPS_OPERATION_MATH_ASINH);
}))
.function("acosh", optional_override([](const Image &image) {
return image.math(VIPS_OPERATION_MATH_ACOSH);
}))
.function("atanh", optional_override([](const Image &image) {
return image.math(VIPS_OPERATION_MATH_ATANH);
}))
.function("log", optional_override([](const Image &image) {
return image.math(VIPS_OPERATION_MATH_LOG);
}))
.function("log10", optional_override([](const Image &image) {
return image.math(VIPS_OPERATION_MATH_LOG10);
}))
.function("exp", optional_override([](const Image &image) {
return image.math(VIPS_OPERATION_MATH_EXP);
}))
.function("exp10", optional_override([](const Image &image) {
return image.math(VIPS_OPERATION_MATH_EXP10);
}))
// need to call different functions for constants and single images
.function("erode", optional_override([](const Image &image,
emscripten::val mask) {
return vips::is_image(mask)
? image.morph(mask.as<Image>(),
VIPS_OPERATION_MORPHOLOGY_ERODE)
: image.morph_const(
VIPS_OPERATION_MORPHOLOGY_ERODE, mask);
}))
.function("dilate", optional_override([](const Image &image,
emscripten::val mask) {
return vips::is_image(mask)
? image.morph(mask.as<Image>(),
VIPS_OPERATION_MORPHOLOGY_DILATE)
: image.morph_const(
VIPS_OPERATION_MORPHOLOGY_DILATE, mask);
}))
.function(
"pow", optional_override([](const Image &a, emscripten::val b) {
return vips::is_image(b)
? a.math2(b.as<Image>(), VIPS_OPERATION_MATH2_POW)
: a.math2_const(VIPS_OPERATION_MATH2_POW,
vips::to_vector<double>(b));
}))
.function(
"wop", optional_override([](const Image &a, emscripten::val b) {
return vips::is_image(b)
? a.math2(b.as<Image>(), VIPS_OPERATION_MATH2_WOP)
: a.math2_const(VIPS_OPERATION_MATH2_WOP,
vips::to_vector<double>(b));
}))
.function(
"atan2", optional_override([](const Image &a, emscripten::val b) {
return vips::is_image(b)
? a.math2(b.as<Image>(), VIPS_OPERATION_MATH2_ATAN2)
: a.math2_const(VIPS_OPERATION_MATH2_ATAN2,
vips::to_vector<double>(b));
}))
.function("add",
optional_override([](const Image &a, emscripten::val b) {
return vips::is_image(b)
? a.add(b.as<Image>())
: a.linear(1.0, vips::to_vector<double>(b));
}))
.function(
"subtract",
optional_override([](const Image &a, emscripten::val b) {
return vips::is_image(b)
? a.subtract(b.as<Image>())
: a.linear(1.0,
vips::negate(vips::to_vector<double>(b)));
}))
.function("multiply",
optional_override([](const Image &a, emscripten::val b) {
return vips::is_image(b)
? a.multiply(b.as<Image>())
: a.linear(vips::to_vector<double>(b), 0.0);
}))
.function(
"divide", optional_override([](const Image &a, emscripten::val b) {
return vips::is_image(b)
? a.divide(b.as<Image>())
: a.linear(vips::invert(vips::to_vector<double>(b)),
0.0);
}))
.function("remainder",
optional_override([](const Image &a, emscripten::val b) {
return vips::is_image(b)
? a.remainder(b.as<Image>())
: a.remainder_const(
vips::to_vector<double>(b));
}))
.function(
"lshift", optional_override([](const Image &a, emscripten::val b) {
return vips::is_image(b)
? a.boolean(b.as<Image>(),