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Clean up comments: No need for reference to Context Blender, since code has completely changed.

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This commit is contained in:
Jürg Lehni 2011-06-02 09:36:49 +01:00
parent 9be8c154b7
commit bb11b74fa3
1 changed files with 2 additions and 24 deletions
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26
src/util/BlendMode.js
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@ -14,30 +14,6 @@
* All rights reserved.
*/
/*
* BlendMode code ported from Context Blender JavaScript Library
*
* Copyright © 2010 Gavin Kistner
*
* 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.
*/
var BlendMode = {
process: function(blendMode, sourceContext, destContext, alpha, offset) {
var sourceCanvas = sourceContext.canvas,
@ -98,6 +74,7 @@ var BlendMode = {
// Determine the index in col that is not used yet by min and max,
// and assign it to mid:
md = min(mn, mx) == 0 ? max(mn, mx) == 1 ? 2 : 1 : 0;
// Now perform the actual algorithm
if (col[mx] > col[mn]) {
col[md] = (col[md] - col[mn]) * s / (col[mx] - col[mn]);
col[mx] = s;
@ -105,6 +82,7 @@ var BlendMode = {
col[md] = col[mx] = 0;
}
col[mn] = 0;
// Finally write out the values
dr = col[0];
dg = col[1];
db = col[2];