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html_css_js_util.cpp
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2265 lines (2063 loc) · 64.2 KB
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/*
Copyright (c) 2020 Patrick Moffitt
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#include "html_css_js_util.hpp"
/**
* The HTML body for the camera settings user interface.
*
* @return HTML
*/
const std::string html_css_js_util::body_html = R"END(
<body>
<h1>0V5642 Camera Settings</h1>
<div class="feature" id="brightness"><h2>Brightness</h2>
<div class="option" id="brightness_0">Brightness +4</div>
<div class="option" id="brightness_1">Brightness +3</div>
<div class="option" id="brightness_2">Brightness +2</div>
<div class="option" id="brightness_3">Brightness +1</div>
<div class="option" id="brightness_4">Brightness 0</div>
<div class="option" id="brightness_5">Brightness -1</div>
<div class="option" id="brightness_6">Brightness -2</div>
<div class="option" id="brightness_7">Brightness -3</div>
<div class="option" id="brightness_8">Brightness -4</div>
</div>
<div class="feature" id="color_saturation"><h2>Color Saturation</h2>
<div class="option" id="color_saturation_0">Saturation +4</div>
<div class="option" id="color_saturation_1">Saturation +3</div>
<div class="option" id="color_saturation_2">Saturation +2</div>
<div class="option" id="color_saturation_3">Saturation +1</div>
<div class="option" id="color_saturation_4">Saturation 0</div>
<div class="option" id="color_saturation_5">Saturation -1</div>
<div class="option" id="color_saturation_6">Saturation -2</div>
<div class="option" id="color_saturation_7">Saturation -3</div>
<div class="option" id="color_saturation_8">Saturation -4</div>
</div>
<div class="feature" id="contrast"><h2>Contrast</h2>
<div class="option" id="contrast_0">Contrast +4</div>
<div class="option" id="contrast_1">Contrast +3</div>
<div class="option" id="contrast_2">Contrast +2</div>
<div class="option" id="contrast_3">Contrast +1</div>
<div class="option" id="contrast_4">Contrast 0</div>
<div class="option" id="contrast_5">Contrast -1</div>
<div class="option" id="contrast_6">Contrast -2</div>
<div class="option" id="contrast_7">Contrast -3</div>
<div class="option" id="contrast_8">Contrast -4</div>
</div>
<div class="feature" id="effect"><h2>Special Effect</h2>
<div class="option" id="effect_0">Antique</div>
<div class="option" id="effect_1">Bluish</div>
<div class="option" id="effect_2">Greenish</div>
<div class="option" id="effect_3">Reddish</div>
<div class="option" id="effect_4">Black & White</div>
<div class="option" id="effect_5">Negative</div>
<div class="option" id="effect_6">B&W Negative</div>
<div class="option" id="effect_7">Normal</div>
<div class="option" id="effect_8">Sepia</div>
<div class="option" id="effect_9">Overexposure</div>
<div class="option" id="effect_10">Solarize</div>
<div class="option" id="effect_11">Blueish</div>
<div class="option" id="effect_12">Yellowish</div>
</div>
<div class="feature" id="exposure"><h2>Exposure</h2>
<div class="option" id="exposure_0">Exposure_17_EV</div>
<div class="option" id="exposure_1">Exposure_13_EV</div>
<div class="option" id="exposure_2">Exposure_10_EV</div>
<div class="option" id="exposure_3">Exposure_07_EV</div>
<div class="option" id="exposure_4">Exposure_03_EV</div>
<div class="option" id="exposure_5">Exposure_default</div>
<div class="option" id="exposure_6">Exposure03_EV</div>
<div class="option" id="exposure_7">Exposure07_EV</div>
<div class="option" id="exposure_8">Exposure10_EV</div>
<div class="option" id="exposure_9">Exposure13_EV</div>
<div class="option" id="exposure_10">Exposure17_EV</div>
</div>
<div class="feature" id="frames"><h2>Frames</h2>
<div class="option" id="frames_0">One</div>
<div class="option" id="frames_1">Two</div>
<div class="option" id="frames_2">Three</div>
<div class="option" id="frames_3">Four</div>
<div class="option" id="frames_4">Five</div>
<div class="option" id="frames_5">Six</div>
<div class="option" id="frames_255">Movie</div>
</div>
<div class="feature" id="hue"><h2>Hue</h2>
<div class="option" id="hue_0">degree_180</div>
<div class="option" id="hue_1">degree_150</div>
<div class="option" id="hue_2">degree_120</div>
<div class="option" id="hue_3">degree_90</div>
<div class="option" id="hue_4">degree_60</div>
<div class="option" id="hue_5">degree_30</div>
<div class="option" id="hue_6">degree_0</div>
<div class="option" id="hue_7">degree30</div>
<div class="option" id="hue_8">degree60</div>
<div class="option" id="hue_9">degree90</div>
<div class="option" id="hue_10">degree120</div>
<div class="option" id="hue_11">degree150</div>
</div>
<div class="feature" id="jpeg_size"><h2>Size</h2>
<div class="option" id="jpeg_size_0">OV5642_320x240</div>
<div class="option" id="jpeg_size_1">OV5642_640x480</div>
<div class="option" id="jpeg_size_2">OV5642_1024x768</div>
<div class="option" id="jpeg_size_3">OV5642_1280x960</div>
<div class="option" id="jpeg_size_4">OV5642_1600x1200</div>
<div class="option" id="jpeg_size_5">OV5642_2048x1536</div>
<div class="option" id="jpeg_size_6">OV5642_2592x1944</div>
</div>
<div class="feature" id="light_mode"><h2>Light Mode</h2>
<div class="option" id="light_mode_0">Advanced_AWB</div>
<div class="option" id="light_mode_1">Simple_AWB</div>
<div class="option" id="light_mode_2">Manual_day</div>
<div class="option" id="light_mode_3">Manual_A</div>
<div class="option" id="light_mode_4">Manual_cwf</div>
<div class="option" id="light_mode_5">Manual_cloudy</div>
</div>
<div class="feature" id="mirror"><h2>Mirror</h2>
<div class="option" id="mirror_7">Normal</div>
<!--- Only Flip works at present 05 June 2020.
https://github.com/ArduCAM/Arduino/issues/448
<div class="option" id="mirror_0">MIRROR</div> -->
<div class="option" id="mirror_1">FLIP</div>
<!---
<div class="option" id="mirror_2">MIRROR_FLIP</div>
-->
</div>
<div class="feature" id="quality"><h2>Quality</h2>
<div class="option" id="quality_0">high_quality</div>
<div class="option" id="quality_1">default_quality</div>
<div class="option" id="quality_2">low_quality</div>
</div>
<div class="feature" id="sharpness"><h2>Sharpness</h2>
<div class="option" id="sharpness_0">Auto_Sharpness_default</div>
<div class="option" id="sharpness_1">Auto_Sharpness1</div>
<div class="option" id="sharpness_2">Auto_Sharpness2</div>
<div class="option" id="sharpness_3">Manual_Sharpness_off</div>
<div class="option" id="sharpness_4">Manual_Sharpness1</div>
<div class="option" id="sharpness_5">Manual_Sharpness2</div>
<div class="option" id="sharpness_6">Manual_Sharpness3</div>
<div class="option" id="sharpness_7">Manual_Sharpness4</div>
<div class="option" id="sharpness_8">Manual_Sharpness5</div>
</div>
<div class="feature" id="test_pattern"><h2>Test Pattern</h2>
<div class="option" id="test_pattern_7">Normal</div>
<div class="option" id="test_pattern_0">Color_bar</div>
<div class="option" id="test_pattern_1">Color_square</div>
<div class="option" id="test_pattern_2">BW_square</div>
<!--- Does not work.
https://github.com/ArduCAM/Arduino/issues/486
<div class="option" id="test_pattern_3">DLI</div> -->
</div>
<div class="control">
<div class="center">
<div class="option button" id="reset">Load Defaults</div>
<div class="option button" id="new">Load Latest</div>
<div class="option button" id="save">Save</div>
</div>
</div>)END";
/**
* The JavaScript user interface for the camera settings.
*
* @return JavaScript
*/
const std::string html_css_js_util::camera_settings_js = R"END(
<!-- BEGIN camera_settings.js --->
<script>
const cameraSettings = {
jpeg_size: 0, // OV5642_320x240
quality: 1, // default_quality
frames: 0,
light_mode: 0, // Advanced_AWB
color_saturation: 4, // Saturation0
brightness: 4, // Brightness0
contrast: 4, // Contrast0
hue: 6, // degree_0
effect: 7, // Normal
exposure: 5, // Exposure_default
sharpness: 0, // Auto_Sharpness_default
mirror: 7, // Normal
test_pattern: 7, // Normal
init: function(settings) {
this.jpeg_size = settings.jpegSize();
this.optionOnOff("jpeg_size", "jpeg_size_" + this.jpeg_size);
this.quality = settings.quality();
this.optionOnOff("quality", "quality_" + this.quality);
this.frames = parseInt(settings.frames());
this.optionOnOff("frames", "frames_" + this.frames);
this.light_mode = settings.lightMode();
this.optionOnOff("light_mode", "light_mode_" + this.light_mode);
this.color_saturation = settings.colorSaturation();
this.optionOnOff("color_saturation", "color_saturation_" + this.color_saturation);
this.brightness = settings.brightness();
this.optionOnOff("brightness", "brightness_" + this.brightness);
this.contrast = settings.contrast();
this.optionOnOff("contrast", "contrast_" + this.contrast);
this.hue = settings.hue();
this.optionOnOff("hue", "hue_" + this.hue);
this.effect = settings.effect();
this.optionOnOff("effect", "effect_" + this.effect);
this.exposure = settings.exposure();
this.optionOnOff("exposure", "exposure_" + this.exposure);
this.sharpness = settings.sharpness();
this.optionOnOff("sharpness", "sharpness_" + this.sharpness);
this.mirror = settings.mirror();
this.optionOnOff("mirror", "mirror_" + this.mirror);
this.test_pattern = settings.testPattern();
this.optionOnOff("test_pattern", "test_pattern_" + this.test_pattern);
},
newBuffer: new Uint8Array(52),
defaultBuffer: new Uint8Array([ 36, 0, 0, 0, 0, 0, 30, 0, 16, 0, 0, 0, 15, 0, 0, 0,
0, 0, 14, 0, 13, 0, 12, 0, 11, 0, 10, 0, 9, 0, 0, 0,
8, 0, 7, 0, 30, 0, 0, 0, 0, 0, 0, 7, 7, 5, 7, 6,
4, 4, 4, 1 ]),
optionOnOff: function(feature, option) {
const options = document.getElementById(feature).children;
for (const option of options) {
option.classList.remove("on");
option.classList.add("off");
}
document.getElementById(option).classList.add("on");
document.getElementById(option).classList.remove("off");
},
reset: function() {
var buf = new flatbuffers.ByteBuffer(this.defaultBuffer);
var defaultSettings = OV5642_Settings.Settings.getRootAsSettings(buf);
this.init(defaultSettings);
},
new: function() {
var ws = new WebSocket(wsUrl);
ws.onopen = function() {
ws.send("getNew");
};
ws.onmessage = function(evt) {
var eventUint8Array = null;
var eventArrayBuffer = null;
var fileReader = new FileReader();
fileReader.onload = function(event) {
eventArrayBuffer = event.target.result;
this.newBuffer = new Uint8Array(eventArrayBuffer);
buf = new flatbuffers.ByteBuffer(this.newBuffer);
var new_settings = OV5642_Settings.Settings.getRootAsSettings(buf);
cameraSettings.init(new_settings);
};
fileReader.readAsArrayBuffer(evt.data);
ws.close();
};
ws.onerror = function(event) {
console.error("WebSocket error observed:", event);
};
},
save: function() {
var builder = new flatbuffers.Builder(48);
var buffer = OV5642_Settings.Settings.createSettings(
builder,
this.jpeg_size,
this.quality,
parseInt(this.frames),
this.light_mode,
this.color_saturation,
this.brightness,
this.contrast,
this.hue,
this.effect,
this.exposure,
this.sharpness,
this.mirror,
this.test_pattern);
builder.finish(buffer);
this.newBuffer = builder.asUint8Array();
}
};
</script>
<!-- END camera_settings.js --->
)END";
/**
* The FlatBuffers JavaScript interface library.
*
* @return JavaScript
*/
const std::string html_css_js_util::flat_buffers_js = R"END(
<!-- BEGIN flatbuffers.js --->
<script>
/// @file
/// @addtogroup flatbuffers_javascript_api
/// @{
/// @cond FLATBUFFERS_INTERNAL
/**
* @fileoverview
*
* Need to suppress 'global this' error so the Node.js export line doesn't cause
* closure compile to error out.
* @suppress {globalThis}
*/
/**
* @const
* @namespace
*/
var flatbuffers = {};
/**
* @typedef {number}
*/
flatbuffers.Offset;
/**
* @typedef {{
* bb: flatbuffers.ByteBuffer,
* bb_pos: number
* }}
*/
flatbuffers.Table;
/**
* @type {number}
* @const
*/
flatbuffers.SIZEOF_SHORT = 2;
/**
* @type {number}
* @const
*/
flatbuffers.SIZEOF_INT = 4;
/**
* @type {number}
* @const
*/
flatbuffers.FILE_IDENTIFIER_LENGTH = 4;
/**
* @type {number}
* @const
*/
flatbuffers.SIZE_PREFIX_LENGTH = 4;
/**
* @param {number} low
* @param {number} high
* @returns {flatbuffers.Long}
*/
flatbuffers.createLong = function(low, high) {
return flatbuffers.Long.create(low, high);
};
/**
* @enum {number}
*/
flatbuffers.Encoding = {
UTF8_BYTES: 1,
UTF16_STRING: 2
};
/**
* @type {Int32Array}
* @const
*/
flatbuffers.int32 = new Int32Array(2);
/**
* @type {Float32Array}
* @const
*/
flatbuffers.float32 = new Float32Array(flatbuffers.int32.buffer);
/**
* @type {Float64Array}
* @const
*/
flatbuffers.float64 = new Float64Array(flatbuffers.int32.buffer);
/**
* @type {boolean}
* @const
*/
flatbuffers.isLittleEndian = new Uint16Array(new Uint8Array([1, 0]).buffer)[0] === 1;
////////////////////////////////////////////////////////////////////////////////
/**
* @constructor
* @param {number} low
* @param {number} high
*/
flatbuffers.Long = function(low, high) {
/**
* @type {number}
* @const
*/
this.low = low | 0;
/**
* @type {number}
* @const
*/
this.high = high | 0;
};
/**
* @param {number} low
* @param {number} high
* @returns {!flatbuffers.Long}
*/
flatbuffers.Long.create = function(low, high) {
// Special-case zero to avoid GC overhead for default values
return low == 0 && high == 0 ? flatbuffers.Long.ZERO : new flatbuffers.Long(low, high);
};
/**
* @returns {number}
*/
flatbuffers.Long.prototype.toFloat64 = function() {
return (this.low >>> 0) + this.high * 0x100000000;
};
/**
* @param {flatbuffers.Long} other
* @returns {boolean}
*/
flatbuffers.Long.prototype.equals = function(other) {
return this.low == other.low && this.high == other.high;
};
/**
* @type {!flatbuffers.Long}
* @const
*/
flatbuffers.Long.ZERO = new flatbuffers.Long(0, 0);
/// @endcond
////////////////////////////////////////////////////////////////////////////////
/**
* Create a FlatBufferBuilder.
*
* @constructor
* @param {number=} opt_initial_size
*/
flatbuffers.Builder = function(opt_initial_size) {
if (!opt_initial_size) {
var initial_size = 1024;
} else {
var initial_size = opt_initial_size;
}
/**
* @type {flatbuffers.ByteBuffer}
* @private
*/
this.bb = flatbuffers.ByteBuffer.allocate(initial_size);
/**
* Remaining space in the ByteBuffer.
*
* @type {number}
* @private
*/
this.space = initial_size;
/**
* Minimum alignment encountered so far.
*
* @type {number}
* @private
*/
this.minalign = 1;
/**
* The vtable for the current table.
*
* @type {Array.<number>}
* @private
*/
this.vtable = null;
/**
* The amount of fields we're actually using.
*
* @type {number}
* @private
*/
this.vtable_in_use = 0;
/**
* Whether we are currently serializing a table.
*
* @type {boolean}
* @private
*/
this.isNested = false;
/**
* Starting offset of the current struct/table.
*
* @type {number}
* @private
*/
this.object_start = 0;
/**
* List of offsets of all vtables.
*
* @type {Array.<number>}
* @private
*/
this.vtables = [];
/**
* For the current vector being built.
*
* @type {number}
* @private
*/
this.vector_num_elems = 0;
/**
* False omits default values from the serialized data
*
* @type {boolean}
* @private
*/
this.force_defaults = false;
};
flatbuffers.Builder.prototype.clear = function() {
this.bb.clear();
this.space = this.bb.capacity();
this.minalign = 1;
this.vtable = null;
this.vtable_in_use = 0;
this.isNested = false;
this.object_start = 0;
this.vtables = [];
this.vector_num_elems = 0;
this.force_defaults = false;
};
/**
* In order to save space, fields that are set to their default value
* don't get serialized into the buffer. Forcing defaults provides a
* way to manually disable this optimization.
*
* @param {boolean} forceDefaults true always serializes default values
*/
flatbuffers.Builder.prototype.forceDefaults = function(forceDefaults) {
this.force_defaults = forceDefaults;
};
/**
* Get the ByteBuffer representing the FlatBuffer. Only call this after you've
* called finish(). The actual data starts at the ByteBuffer's current position,
* not necessarily at 0.
*
* @returns {flatbuffers.ByteBuffer}
*/
flatbuffers.Builder.prototype.dataBuffer = function() {
return this.bb;
};
/**
* Get the bytes representing the FlatBuffer. Only call this after you've
* called finish().
*
* @returns {!Uint8Array}
*/
flatbuffers.Builder.prototype.asUint8Array = function() {
return this.bb.bytes().subarray(this.bb.position(), this.bb.position() + this.offset());
};
/// @cond FLATBUFFERS_INTERNAL
/**
* Prepare to write an element of `size` after `additional_bytes` have been
* written, e.g. if you write a string, you need to align such the int length
* field is aligned to 4 bytes, and the string data follows it directly. If all
* you need to do is alignment, `additional_bytes` will be 0.
*
* @param {number} size This is the of the new element to write
* @param {number} additional_bytes The padding size
*/
flatbuffers.Builder.prototype.prep = function(size, additional_bytes) {
// Track the biggest thing we've ever aligned to.
if (size > this.minalign) {
this.minalign = size;
}
// Find the amount of alignment needed such that `size` is properly
// aligned after `additional_bytes`
var align_size = ((~(this.bb.capacity() - this.space + additional_bytes)) + 1) & (size - 1);
// Reallocate the buffer if needed.
while (this.space < align_size + size + additional_bytes) {
var old_buf_size = this.bb.capacity();
this.bb = flatbuffers.Builder.growByteBuffer(this.bb);
this.space += this.bb.capacity() - old_buf_size;
}
this.pad(align_size);
};
/**
* @param {number} byte_size
*/
flatbuffers.Builder.prototype.pad = function(byte_size) {
for (var i = 0; i < byte_size; i++) {
this.bb.writeInt8(--this.space, 0);
}
};
/**
* @param {number} value
*/
flatbuffers.Builder.prototype.writeInt8 = function(value) {
this.bb.writeInt8(this.space -= 1, value);
};
/**
* @param {number} value
*/
flatbuffers.Builder.prototype.writeInt16 = function(value) {
this.bb.writeInt16(this.space -= 2, value);
};
/**
* @param {number} value
*/
flatbuffers.Builder.prototype.writeInt32 = function(value) {
this.bb.writeInt32(this.space -= 4, value);
};
/**
* @param {flatbuffers.Long} value
*/
flatbuffers.Builder.prototype.writeInt64 = function(value) {
this.bb.writeInt64(this.space -= 8, value);
};
/**
* @param {number} value
*/
flatbuffers.Builder.prototype.writeFloat32 = function(value) {
this.bb.writeFloat32(this.space -= 4, value);
};
/**
* @param {number} value
*/
flatbuffers.Builder.prototype.writeFloat64 = function(value) {
this.bb.writeFloat64(this.space -= 8, value);
};
/// @endcond
/**
* Add an `int8` to the buffer, properly aligned, and grows the buffer (if necessary).
* @param {number} value The `int8` to add the the buffer.
*/
flatbuffers.Builder.prototype.addInt8 = function(value) {
this.prep(1, 0);
this.writeInt8(value);
};
/**
* Add an `int16` to the buffer, properly aligned, and grows the buffer (if necessary).
* @param {number} value The `int16` to add the the buffer.
*/
flatbuffers.Builder.prototype.addInt16 = function(value) {
this.prep(2, 0);
this.writeInt16(value);
};
/**
* Add an `int32` to the buffer, properly aligned, and grows the buffer (if necessary).
* @param {number} value The `int32` to add the the buffer.
*/
flatbuffers.Builder.prototype.addInt32 = function(value) {
this.prep(4, 0);
this.writeInt32(value);
};
/**
* Add an `int64` to the buffer, properly aligned, and grows the buffer (if necessary).
* @param {flatbuffers.Long} value The `int64` to add the the buffer.
*/
flatbuffers.Builder.prototype.addInt64 = function(value) {
this.prep(8, 0);
this.writeInt64(value);
};
/**
* Add a `float32` to the buffer, properly aligned, and grows the buffer (if necessary).
* @param {number} value The `float32` to add the the buffer.
*/
flatbuffers.Builder.prototype.addFloat32 = function(value) {
this.prep(4, 0);
this.writeFloat32(value);
};
/**
* Add a `float64` to the buffer, properly aligned, and grows the buffer (if necessary).
* @param {number} value The `float64` to add the the buffer.
*/
flatbuffers.Builder.prototype.addFloat64 = function(value) {
this.prep(8, 0);
this.writeFloat64(value);
};
/// @cond FLATBUFFERS_INTERNAL
/**
* @param {number} voffset
* @param {number} value
* @param {number} defaultValue
*/
flatbuffers.Builder.prototype.addFieldInt8 = function(voffset, value, defaultValue) {
if (this.force_defaults || value != defaultValue) {
this.addInt8(value);
this.slot(voffset);
}
};
/**
* @param {number} voffset
* @param {number} value
* @param {number} defaultValue
*/
flatbuffers.Builder.prototype.addFieldInt16 = function(voffset, value, defaultValue) {
if (this.force_defaults || value != defaultValue) {
this.addInt16(value);
this.slot(voffset);
}
};
/**
* @param {number} voffset
* @param {number} value
* @param {number} defaultValue
*/
flatbuffers.Builder.prototype.addFieldInt32 = function(voffset, value, defaultValue) {
if (this.force_defaults || value != defaultValue) {
this.addInt32(value);
this.slot(voffset);
}
};
/**
* @param {number} voffset
* @param {flatbuffers.Long} value
* @param {flatbuffers.Long} defaultValue
*/
flatbuffers.Builder.prototype.addFieldInt64 = function(voffset, value, defaultValue) {
if (this.force_defaults || !value.equals(defaultValue)) {
this.addInt64(value);
this.slot(voffset);
}
};
/**
* @param {number} voffset
* @param {number} value
* @param {number} defaultValue
*/
flatbuffers.Builder.prototype.addFieldFloat32 = function(voffset, value, defaultValue) {
if (this.force_defaults || value != defaultValue) {
this.addFloat32(value);
this.slot(voffset);
}
};
/**
* @param {number} voffset
* @param {number} value
* @param {number} defaultValue
*/
flatbuffers.Builder.prototype.addFieldFloat64 = function(voffset, value, defaultValue) {
if (this.force_defaults || value != defaultValue) {
this.addFloat64(value);
this.slot(voffset);
}
};
/**
* @param {number} voffset
* @param {flatbuffers.Offset} value
* @param {flatbuffers.Offset} defaultValue
*/
flatbuffers.Builder.prototype.addFieldOffset = function(voffset, value, defaultValue) {
if (this.force_defaults || value != defaultValue) {
this.addOffset(value);
this.slot(voffset);
}
};
/**
* Structs are stored inline, so nothing additional is being added. `d` is always 0.
*
* @param {number} voffset
* @param {flatbuffers.Offset} value
* @param {flatbuffers.Offset} defaultValue
*/
flatbuffers.Builder.prototype.addFieldStruct = function(voffset, value, defaultValue) {
if (value != defaultValue) {
this.nested(value);
this.slot(voffset);
}
};
/**
* Structures are always stored inline, they need to be created right
* where they're used. You'll get this assertion failure if you
* created it elsewhere.
*
* @param {flatbuffers.Offset} obj The offset of the created object
*/
flatbuffers.Builder.prototype.nested = function(obj) {
if (obj != this.offset()) {
throw new Error('FlatBuffers: struct must be serialized inline.');
}
};
/**
* Should not be creating any other object, string or vector
* while an object is being constructed
*/
flatbuffers.Builder.prototype.notNested = function() {
if (this.isNested) {
throw new Error('FlatBuffers: object serialization must not be nested.');
}
};
/**
* Set the current vtable at `voffset` to the current location in the buffer.
*
* @param {number} voffset
*/
flatbuffers.Builder.prototype.slot = function(voffset) {
this.vtable[voffset] = this.offset();
};
/**
* @returns {flatbuffers.Offset} Offset relative to the end of the buffer.
*/
flatbuffers.Builder.prototype.offset = function() {
return this.bb.capacity() - this.space;
};
/**
* Doubles the size of the backing ByteBuffer and copies the old data towards
* the end of the new buffer (since we build the buffer backwards).
*
* @param {flatbuffers.ByteBuffer} bb The current buffer with the existing data
* @returns {!flatbuffers.ByteBuffer} A new byte buffer with the old data copied
* to it. The data is located at the end of the buffer.
*
* uint8Array.set() formally takes {Array<number>|ArrayBufferView}, so to pass
* it a uint8Array we need to suppress the type check:
* @suppress {checkTypes}
*/
flatbuffers.Builder.growByteBuffer = function(bb) {
var old_buf_size = bb.capacity();
// Ensure we don't grow beyond what fits in an int.
if (old_buf_size & 0xC0000000) {
throw new Error('FlatBuffers: cannot grow buffer beyond 2 gigabytes.');
}
var new_buf_size = old_buf_size << 1;
var nbb = flatbuffers.ByteBuffer.allocate(new_buf_size);
nbb.setPosition(new_buf_size - old_buf_size);
nbb.bytes().set(bb.bytes(), new_buf_size - old_buf_size);
return nbb;
};
/// @endcond
/**
* Adds on offset, relative to where it will be written.
*
* @param {flatbuffers.Offset} offset The offset to add.
*/
flatbuffers.Builder.prototype.addOffset = function(offset) {
this.prep(flatbuffers.SIZEOF_INT, 0); // Ensure alignment is already done.
this.writeInt32(this.offset() - offset + flatbuffers.SIZEOF_INT);
};
/// @cond FLATBUFFERS_INTERNAL
/**
* Start encoding a new object in the buffer. Users will not usually need to
* call this directly. The FlatBuffers compiler will generate helper methods
* that call this method internally.
*
* @param {number} numfields
*/
flatbuffers.Builder.prototype.startObject = function(numfields) {
this.notNested();
if (this.vtable == null) {
this.vtable = [];
}
this.vtable_in_use = numfields;
for (var i = 0; i < numfields; i++) {
this.vtable[i] = 0; // This will push additional elements as needed
}
this.isNested = true;
this.object_start = this.offset();
};
/**
* Finish off writing the object that is under construction.
*
* @returns {flatbuffers.Offset} The offset to the object inside `dataBuffer`
*/
flatbuffers.Builder.prototype.endObject = function() {
if (this.vtable == null || !this.isNested) {
throw new Error('FlatBuffers: endObject called without startObject');
}
this.addInt32(0);
var vtableloc = this.offset();
// Trim trailing zeroes.
var i = this.vtable_in_use - 1;
for (; i >= 0 && this.vtable[i] == 0; i--) {}
var trimmed_size = i + 1;
// Write out the current vtable.
for (; i >= 0; i--) {
// Offset relative to the start of the table.
this.addInt16(this.vtable[i] != 0 ? vtableloc - this.vtable[i] : 0);
}
var standard_fields = 2; // The fields below:
this.addInt16(vtableloc - this.object_start);
var len = (trimmed_size + standard_fields) * flatbuffers.SIZEOF_SHORT;
this.addInt16(len);
// Search for an existing vtable that matches the current one.
var existing_vtable = 0;
var vt1 = this.space;
outer_loop:
for (i = 0; i < this.vtables.length; i++) {
var vt2 = this.bb.capacity() - this.vtables[i];
if (len == this.bb.readInt16(vt2)) {
for (var j = flatbuffers.SIZEOF_SHORT; j < len; j += flatbuffers.SIZEOF_SHORT) {
if (this.bb.readInt16(vt1 + j) != this.bb.readInt16(vt2 + j)) {
continue outer_loop;
}
}
existing_vtable = this.vtables[i];
break;
}
}
if (existing_vtable) {
// Found a match:
// Remove the current vtable.
this.space = this.bb.capacity() - vtableloc;
// Point table to existing vtable.
this.bb.writeInt32(this.space, existing_vtable - vtableloc);
} else {
// No match:
// Add the location of the current vtable to the list of vtables.
this.vtables.push(this.offset());
// Point table to current vtable.
this.bb.writeInt32(this.bb.capacity() - vtableloc, this.offset() - vtableloc);
}
this.isNested = false;
return vtableloc;
};
/// @endcond
/**
* Finalize a buffer, poiting to the given `root_table`.
*
* @param {flatbuffers.Offset} root_table
* @param {string=} opt_file_identifier
* @param {boolean=} opt_size_prefix
*/
flatbuffers.Builder.prototype.finish = function(root_table, opt_file_identifier, opt_size_prefix) {
var size_prefix = opt_size_prefix ? flatbuffers.SIZE_PREFIX_LENGTH : 0;
if (opt_file_identifier) {
var file_identifier = opt_file_identifier;