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Diffstat (limited to 'experimental/Media Player/Effects/EffectIsolate.qml')
| -rwxr-xr-x | experimental/Media Player/Effects/EffectIsolate.qml | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/experimental/Media Player/Effects/EffectIsolate.qml b/experimental/Media Player/Effects/EffectIsolate.qml new file mode 100755 index 0000000..4c569a5 --- /dev/null +++ b/experimental/Media Player/Effects/EffectIsolate.qml @@ -0,0 +1,105 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +import QtQuick 2.0 + +Effect { + parameters: ListModel { + ListElement { + name: "hue" + value: 0.5 + } + ListElement { + name: "width" + value: 0.5 + } + } + + // Transform slider values, and bind result to shader uniforms + property real targetHue: parameters.get(0).value * 360 + property real windowWidth: parameters.get(1).value * 60 + + fragmentShaderSrc: "uniform float targetHue; + uniform float windowWidth; + uniform float dividerValue; + + uniform sampler2D source; + uniform lowp float qt_Opacity; + varying vec2 qt_TexCoord0; + + void rgb2hsl(vec3 rgb, out float h, out float s, float l) + { + float maxval = max(rgb.r, max(rgb.g, rgb.b)); + float minval = min(rgb.r, min(rgb.g, rgb.b)); + float delta = maxval - minval; + l = (minval + maxval) / 2.0; + s = 0.0; + if (l > 0.0 && l < 1.0) + s = delta / (l < 0.5 ? 2.0 * l : 2.0 - 2.0 * l); + h = 0.0; + if (delta > 0.0) + { + if (rgb.r == maxval && rgb.g != maxval) + h += (rgb.g - rgb.b ) / delta; + if (rgb.g == maxval && rgb.b != maxval) + h += 2.0 + (rgb.b - rgb.r) / delta; + if (rgb.b == maxval && rgb.r != maxval) + h += 4.0 + (rgb.r - rgb.g) / delta; + h *= 60.0; + } + } + + void main() + { + vec2 uv = qt_TexCoord0.xy; + vec3 col = texture2D(source, uv).rgb; + float h, s, l; + rgb2hsl(col, h, s, l); + float h2 = (h > targetHue) ? h - 360.0 : h + 360.0; + float y = 0.3 * col.r + 0.59 * col.g + 0.11 * col.b; + vec3 result; + if (uv.x > dividerValue || (abs(h - targetHue) < windowWidth) || (abs(h2 - targetHue) < windowWidth)) + result = col; + else + result = vec3(y, y, y); + gl_FragColor = qt_Opacity * vec4(result, 1.0); + }" +} |