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Move opacity precalculation out of variable definition.

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This commit is contained in:
Jürg Lehni 2011-06-01 15:31:02 +01:00
parent 117a828b2b
commit 9fa193d26f
1 changed files with 1 additions and 2 deletions
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3
src/util/BlendMode.js
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@ -51,7 +51,6 @@ var BlendMode = {
src = sourceContext.getImageData(0, 0, src = sourceContext.getImageData(0, 0,
sourceCanvas.width, sourceCanvas.height).data, sourceCanvas.width, sourceCanvas.height).data,
min = Math.min, min = Math.min,
opacity = opacity / 255,
sA, dA, sAM, dAM, dA2, sRA, sGA, sBA, dRA, dGA, dBA, demultiply; sA, dA, sAM, dAM, dA2, sRA, sGA, sBA, dRA, dGA, dBA, demultiply;
// TODO: Some blend modes seem broken at the moment, e.g. // TODO: Some blend modes seem broken at the moment, e.g.
@ -161,7 +160,7 @@ var BlendMode = {
}; };
var process = modes[blendMode] || modes.unsupported; var process = modes[blendMode] || modes.unsupported;
opacity /= 255;
for (var i = 0, l = dst.length; i < l; i += 4) { for (var i = 0, l = dst.length; i < l; i += 4) {
sA = src[i + 3] * opacity; sA = src[i + 3] * opacity;
dA = dst[i + 3] / 255; dA = dst[i + 3] / 255;