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/* *
*
* Copyright (c) 2019-2021 Highsoft AS
*
* Boost module: stripped-down renderer for higher performance
*
* License: highcharts.com/license
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
*
* */
'use strict';
import U from '../../Core/Utilities.js';
var clamp = U.clamp, error = U.error, pick = U.pick;
/* *
*
* Constants
*
* */
var fragmentShader = [
/* eslint-disable max-len, @typescript-eslint/indent */
'precision highp float;',
'uniform vec4 fillColor;',
'varying highp vec2 position;',
'varying highp vec4 vColor;',
'uniform sampler2D uSampler;',
'uniform bool isCircle;',
'uniform bool hasColor;',
// 'vec4 toColor(float value, vec2 point) {',
// 'return vec4(0.0, 0.0, 0.0, 0.0);',
// '}',
'void main(void) {',
'vec4 col = fillColor;',
'vec4 tcol = texture2D(uSampler, gl_PointCoord.st);',
'if (hasColor) {',
'col = vColor;',
'}',
'if (isCircle) {',
'col *= tcol;',
'if (tcol.r < 0.0) {',
'discard;',
'} else {',
'gl_FragColor = col;',
'}',
'} else {',
'gl_FragColor = col;',
'}',
'}'
/* eslint-enable max-len, @typescript-eslint/indent */
].join('\n');
var vertexShader = [
/* eslint-disable max-len, @typescript-eslint/indent */
'#version 100',
'#define LN10 2.302585092994046',
'precision highp float;',
'attribute vec4 aVertexPosition;',
'attribute vec4 aColor;',
'varying highp vec2 position;',
'varying highp vec4 vColor;',
'uniform mat4 uPMatrix;',
'uniform float pSize;',
'uniform float translatedThreshold;',
'uniform bool hasThreshold;',
'uniform bool skipTranslation;',
'uniform float xAxisTrans;',
'uniform float xAxisMin;',
'uniform float xAxisMinPad;',
'uniform float xAxisPointRange;',
'uniform float xAxisLen;',
'uniform bool xAxisPostTranslate;',
'uniform float xAxisOrdinalSlope;',
'uniform float xAxisOrdinalOffset;',
'uniform float xAxisPos;',
'uniform bool xAxisCVSCoord;',
'uniform bool xAxisIsLog;',
'uniform bool xAxisReversed;',
'uniform float yAxisTrans;',
'uniform float yAxisMin;',
'uniform float yAxisMinPad;',
'uniform float yAxisPointRange;',
'uniform float yAxisLen;',
'uniform bool yAxisPostTranslate;',
'uniform float yAxisOrdinalSlope;',
'uniform float yAxisOrdinalOffset;',
'uniform float yAxisPos;',
'uniform bool yAxisCVSCoord;',
'uniform bool yAxisIsLog;',
'uniform bool yAxisReversed;',
'uniform bool isBubble;',
'uniform bool bubbleSizeByArea;',
'uniform float bubbleZMin;',
'uniform float bubbleZMax;',
'uniform float bubbleZThreshold;',
'uniform float bubbleMinSize;',
'uniform float bubbleMaxSize;',
'uniform bool bubbleSizeAbs;',
'uniform bool isInverted;',
'float bubbleRadius(){',
'float value = aVertexPosition.w;',
'float zMax = bubbleZMax;',
'float zMin = bubbleZMin;',
'float radius = 0.0;',
'float pos = 0.0;',
'float zRange = zMax - zMin;',
'if (bubbleSizeAbs){',
'value = value - bubbleZThreshold;',
'zMax = max(zMax - bubbleZThreshold, zMin - bubbleZThreshold);',
'zMin = 0.0;',
'}',
'if (value < zMin){',
'radius = bubbleZMin / 2.0 - 1.0;',
'} else {',
'pos = zRange > 0.0 ? (value - zMin) / zRange : 0.5;',
'if (bubbleSizeByArea && pos > 0.0){',
'pos = sqrt(pos);',
'}',
'radius = ceil(bubbleMinSize + pos * (bubbleMaxSize - bubbleMinSize)) / 2.0;',
'}',
'return radius * 2.0;',
'}',
'float translate(float val,',
'float pointPlacement,',
'float localA,',
'float localMin,',
'float minPixelPadding,',
'float pointRange,',
'float len,',
'bool cvsCoord,',
'bool isLog,',
'bool reversed',
'){',
'float sign = 1.0;',
'float cvsOffset = 0.0;',
'if (cvsCoord) {',
'sign *= -1.0;',
'cvsOffset = len;',
'}',
'if (isLog) {',
'val = log(val) / LN10;',
'}',
'if (reversed) {',
'sign *= -1.0;',
'cvsOffset -= sign * len;',
'}',
'return sign * (val - localMin) * localA + cvsOffset + ',
'(sign * minPixelPadding);',
'}',
'float xToPixels(float value) {',
'if (skipTranslation){',
'return value;// + xAxisPos;',
'}',
'return translate(value, 0.0, xAxisTrans, xAxisMin, xAxisMinPad, xAxisPointRange, xAxisLen, xAxisCVSCoord, xAxisIsLog, xAxisReversed);// + xAxisPos;',
'}',
'float yToPixels(float value, float checkTreshold) {',
'float v;',
'if (skipTranslation){',
'v = value;// + yAxisPos;',
'} else {',
'v = translate(value, 0.0, yAxisTrans, yAxisMin, yAxisMinPad, yAxisPointRange, yAxisLen, yAxisCVSCoord, yAxisIsLog, yAxisReversed);// + yAxisPos;',
'if (v > yAxisLen) {',
'v = yAxisLen;',
'}',
'}',
'if (checkTreshold > 0.0 && hasThreshold) {',
'v = min(v, translatedThreshold);',
'}',
'return v;',
'}',
'void main(void) {',
'if (isBubble){',
'gl_PointSize = bubbleRadius();',
'} else {',
'gl_PointSize = pSize;',
'}',
// 'gl_PointSize = 10.0;',
'vColor = aColor;',
'if (skipTranslation && isInverted) {',
// If we get translated values from JS, just swap them (x, y)
'gl_Position = uPMatrix * vec4(aVertexPosition.y + yAxisPos, aVertexPosition.x + xAxisPos, 0.0, 1.0);',
'} else if (isInverted) {',
// But when calculating pixel positions directly,
// swap axes and values (x, y)
'gl_Position = uPMatrix * vec4(yToPixels(aVertexPosition.y, aVertexPosition.z) + yAxisPos, xToPixels(aVertexPosition.x) + xAxisPos, 0.0, 1.0);',
'} else {',
'gl_Position = uPMatrix * vec4(xToPixels(aVertexPosition.x) + xAxisPos, yToPixels(aVertexPosition.y, aVertexPosition.z) + yAxisPos, 0.0, 1.0);',
'}',
// 'gl_Position = uPMatrix * vec4(aVertexPosition.x, aVertexPosition.y, 0.0, 1.0);',
'}'
/* eslint-enable max-len, @typescript-eslint/indent */
].join('\n');
/* *
*
* Class
*
* */
/* eslint-disable valid-jsdoc */
/**
* A static shader mimicing axis translation functions found in Core/Axis
*
* @private
*
* @param {WebGLContext} gl
* the context in which the shader is active
*/
var WGLShader = /** @class */ (function () {
/* *
*
* Constructor
*
* */
function WGLShader(gl) {
// Error stack
this.errors = [];
this.uLocations = {};
this.gl = gl;
if (gl && !this.createShader()) {
return void 0;
}
}
/* *
*
* Functions
*
* */
/**
* Bind the shader.
* This makes the shader the active one until another one is bound,
* or until 0 is bound.
* @private
*/
WGLShader.prototype.bind = function () {
if (this.gl && this.shaderProgram) {
this.gl.useProgram(this.shaderProgram);
}
};
/**
* Create the shader.
* Loads the shader program statically defined above
* @private
*/
WGLShader.prototype.createShader = function () {
var _this = this;
var v = this.stringToProgram(vertexShader, 'vertex'), f = this.stringToProgram(fragmentShader, 'fragment'), uloc = function (n) { return (_this.gl.getUniformLocation(_this.shaderProgram, n)); };
if (!v || !f) {
this.shaderProgram = false;
this.handleErrors();
return false;
}
this.shaderProgram = this.gl.createProgram();
this.gl.attachShader(this.shaderProgram, v);
this.gl.attachShader(this.shaderProgram, f);
this.gl.linkProgram(this.shaderProgram);
if (!this.gl.getProgramParameter(this.shaderProgram, this.gl.LINK_STATUS)) {
this.errors.push(this.gl.getProgramInfoLog(this.shaderProgram));
this.handleErrors();
this.shaderProgram = false;
return false;
}
this.gl.useProgram(this.shaderProgram);
this.gl.bindAttribLocation(this.shaderProgram, 0, 'aVertexPosition');
this.pUniform = uloc('uPMatrix');
this.psUniform = uloc('pSize');
this.fcUniform = uloc('fillColor');
this.isBubbleUniform = uloc('isBubble');
this.bubbleSizeAbsUniform = uloc('bubbleSizeAbs');
this.bubbleSizeAreaUniform = uloc('bubbleSizeByArea');
this.uSamplerUniform = uloc('uSampler');
this.skipTranslationUniform = uloc('skipTranslation');
this.isCircleUniform = uloc('isCircle');
this.isInverted = uloc('isInverted');
return true;
};
/**
* Handle errors accumulated in errors stack
* @private
*/
WGLShader.prototype.handleErrors = function () {
if (this.errors.length) {
error('[highcharts boost] shader error - ' +
this.errors.join('\n'));
}
};
/**
* String to shader program
* @private
* @param {string} str
* Program source
* @param {string} type
* Program type: either `vertex` or `fragment`
*/
WGLShader.prototype.stringToProgram = function (str, type) {
var shader = this.gl.createShader(type === 'vertex' ? this.gl.VERTEX_SHADER : this.gl.FRAGMENT_SHADER);
this.gl.shaderSource(shader, str);
this.gl.compileShader(shader);
if (!this.gl.getShaderParameter(shader, this.gl.COMPILE_STATUS)) {
this.errors.push('when compiling ' +
type +
' shader:\n' +
this.gl.getShaderInfoLog(shader));
return false;
}
return shader;
};
/**
* Destroy the shader
* @private
*/
WGLShader.prototype.destroy = function () {
if (this.gl && this.shaderProgram) {
this.gl.deleteProgram(this.shaderProgram);
this.shaderProgram = false;
}
};
WGLShader.prototype.fillColorUniform = function () {
return this.fcUniform;
};
/**
* Get the shader program handle
* @private
* @return {WebGLProgram}
* The handle for the program
*/
WGLShader.prototype.getProgram = function () {
return this.shaderProgram;
};
WGLShader.prototype.pointSizeUniform = function () {
return this.psUniform;
};
WGLShader.prototype.perspectiveUniform = function () {
return this.pUniform;
};
/**
* Flush
* @private
*/
WGLShader.prototype.reset = function () {
if (this.gl && this.shaderProgram) {
this.gl.uniform1i(this.isBubbleUniform, 0);
this.gl.uniform1i(this.isCircleUniform, 0);
}
};
/**
* Set bubble uniforms
* @private
* @param {Highcharts.Series} series
* Series to use
*/
WGLShader.prototype.setBubbleUniforms = function (series, zCalcMin, zCalcMax, pixelRatio) {
if (pixelRatio === void 0) { pixelRatio = 1; }
var seriesOptions = series.options;
var zMin = Number.MAX_VALUE, zMax = -Number.MAX_VALUE;
if (this.gl && this.shaderProgram && series.is('bubble')) {
var pxSizes = series.getPxExtremes();
zMin = pick(seriesOptions.zMin, clamp(zCalcMin, seriesOptions.displayNegative === false ?
seriesOptions.zThreshold : -Number.MAX_VALUE, zMin));
zMax = pick(seriesOptions.zMax, Math.max(zMax, zCalcMax));
this.gl.uniform1i(this.isBubbleUniform, 1);
this.gl.uniform1i(this.isCircleUniform, 1);
this.gl.uniform1i(this.bubbleSizeAreaUniform, (series.options.sizeBy !== 'width'));
this.gl.uniform1i(this.bubbleSizeAbsUniform, series.options
.sizeByAbsoluteValue);
this.setUniform('bubbleMinSize', pxSizes.minPxSize * pixelRatio);
this.setUniform('bubbleMaxSize', pxSizes.maxPxSize * pixelRatio);
this.setUniform('bubbleZMin', zMin);
this.setUniform('bubbleZMax', zMax);
this.setUniform('bubbleZThreshold', series.options.zThreshold);
}
};
/**
* Set the Color uniform.
* @private
* @param {Array<number>} color
* Array with RGBA values.
*/
WGLShader.prototype.setColor = function (color) {
if (this.gl && this.shaderProgram) {
this.gl.uniform4f(this.fcUniform, color[0] / 255.0, color[1] / 255.0, color[2] / 255.0, color[3]);
}
};
/**
* Enable/disable circle drawing
* @private
*/
WGLShader.prototype.setDrawAsCircle = function (flag) {
if (this.gl && this.shaderProgram) {
this.gl.uniform1i(this.isCircleUniform, flag ? 1 : 0);
}
};
/**
* Set if inversion state
* @private
* @param {number} flag
* Inversion flag
*/
WGLShader.prototype.setInverted = function (flag) {
if (this.gl && this.shaderProgram) {
this.gl.uniform1i(this.isInverted, flag);
}
};
/**
* Set the perspective matrix
* @private
* @param {Float32List} m
* Matrix 4 x 4
*/
WGLShader.prototype.setPMatrix = function (m) {
if (this.gl && this.shaderProgram) {
this.gl.uniformMatrix4fv(this.pUniform, false, m);
}
};
/**
* Set the point size.
* @private
* @param {number} p
* Point size
*/
WGLShader.prototype.setPointSize = function (p) {
if (this.gl && this.shaderProgram) {
this.gl.uniform1f(this.psUniform, p);
}
};
/**
* Set skip translation
* @private
*/
WGLShader.prototype.setSkipTranslation = function (flag) {
if (this.gl && this.shaderProgram) {
this.gl.uniform1i(this.skipTranslationUniform, flag === true ? 1 : 0);
}
};
/**
* Set the active texture
* @private
* @param {number} texture
* Texture to activate
*/
WGLShader.prototype.setTexture = function (texture) {
if (this.gl && this.shaderProgram) {
this.gl.uniform1i(this.uSamplerUniform, texture);
}
};
/**
* Set a uniform value.
* This uses a hash map to cache uniform locations.
* @private
* @param {string} name
* Name of the uniform to set.
* @param {number} val
* Value to set
*/
WGLShader.prototype.setUniform = function (name, val) {
if (this.gl && this.shaderProgram) {
var u = this.uLocations[name] = (this.uLocations[name] ||
this.gl.getUniformLocation(this.shaderProgram, name));
this.gl.uniform1f(u, val);
}
};
return WGLShader;
}());
/* *
*
* Default Export
*
* */
export default WGLShader;
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