33 lines
1.4 KiB
JavaScript
33 lines
1.4 KiB
JavaScript
'use strict';
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var adapter = require('../../../../environment/adapter.js');
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"use strict";
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function mapWebGLBlendModesToPixi(gl) {
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const blendMap = {};
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blendMap.normal = [gl.ONE, gl.ONE_MINUS_SRC_ALPHA];
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blendMap.add = [gl.ONE, gl.ONE];
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blendMap.multiply = [gl.DST_COLOR, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA];
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blendMap.screen = [gl.ONE, gl.ONE_MINUS_SRC_COLOR, gl.ONE, gl.ONE_MINUS_SRC_ALPHA];
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blendMap.none = [0, 0];
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blendMap["normal-npm"] = [gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA];
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blendMap["add-npm"] = [gl.SRC_ALPHA, gl.ONE, gl.ONE, gl.ONE];
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blendMap["screen-npm"] = [gl.SRC_ALPHA, gl.ONE_MINUS_SRC_COLOR, gl.ONE, gl.ONE_MINUS_SRC_ALPHA];
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blendMap.erase = [gl.ZERO, gl.ONE_MINUS_SRC_ALPHA];
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const isWebGl2 = !(gl instanceof adapter.DOMAdapter.get().getWebGLRenderingContext());
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if (isWebGl2) {
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blendMap.min = [gl.ONE, gl.ONE, gl.ONE, gl.ONE, gl.MIN, gl.MIN];
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blendMap.max = [gl.ONE, gl.ONE, gl.ONE, gl.ONE, gl.MAX, gl.MAX];
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} else {
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const ext = gl.getExtension("EXT_blend_minmax");
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if (ext) {
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blendMap.min = [gl.ONE, gl.ONE, gl.ONE, gl.ONE, ext.MIN_EXT, ext.MIN_EXT];
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blendMap.max = [gl.ONE, gl.ONE, gl.ONE, gl.ONE, ext.MAX_EXT, ext.MAX_EXT];
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}
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}
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return blendMap;
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}
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exports.mapWebGLBlendModesToPixi = mapWebGLBlendModesToPixi;
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//# sourceMappingURL=mapWebGLBlendModesToPixi.js.map
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