diff options
Diffstat (limited to 'examples/multimedia/video/qmlvideofx/shaders/sobeledgedetection1.fsh')
-rw-r--r-- | examples/multimedia/video/qmlvideofx/shaders/sobeledgedetection1.fsh | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/examples/multimedia/video/qmlvideofx/shaders/sobeledgedetection1.fsh b/examples/multimedia/video/qmlvideofx/shaders/sobeledgedetection1.fsh deleted file mode 100644 index 9c0b33885..000000000 --- a/examples/multimedia/video/qmlvideofx/shaders/sobeledgedetection1.fsh +++ /dev/null @@ -1,92 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies). -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the Qt Mobility Components. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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 The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -// Based on "Graphics Shaders: Theory and Practice" (http://cgeducation.org/ShadersBook/) - -uniform float dividerValue; -uniform float mixLevel; -uniform float resS; -uniform float resT; - -uniform sampler2D source; -uniform lowp float qt_Opacity; -varying vec2 qt_TexCoord0; - -void main() -{ - vec2 uv = qt_TexCoord0.xy; - vec4 c = vec4(0.0); - if (uv.x < dividerValue) { - vec2 st = qt_TexCoord0.st; - vec3 irgb = texture2D(source, st).rgb; - vec2 stp0 = vec2(1.0 / resS, 0.0); - vec2 st0p = vec2(0.0 , 1.0 / resT); - vec2 stpp = vec2(1.0 / resS, 1.0 / resT); - vec2 stpm = vec2(1.0 / resS, -1.0 / resT); - const vec3 W = vec3(0.2125, 0.7154, 0.0721); - float i00 = dot(texture2D(source, st).rgb, W); - float im1m1 = dot(texture2D(source, st-stpp).rgb, W); - float ip1p1 = dot(texture2D(source, st+stpp).rgb, W); - float im1p1 = dot(texture2D(source, st-stpm).rgb, W); - float ip1m1 = dot(texture2D(source, st+stpm).rgb, W); - float im10 = dot(texture2D(source, st-stp0).rgb, W); - float ip10 = dot(texture2D(source, st+stp0).rgb, W); - float i0m1 = dot(texture2D(source, st-st0p).rgb, W); - float i0p1 = dot(texture2D(source, st+st0p).rgb, W); - float h = -1.0*im1p1 - 2.0*i0p1 - 1.0*ip1p1 + 1.0*im1m1 + 2.0*i0m1 + 1.0*ip1m1; - float v = -1.0*im1m1 - 2.0*im10 - 1.0*im1p1 + 1.0*ip1m1 + 2.0*ip10 + 1.0*ip1p1; - float mag = 1.0 - length(vec2(h, v)); - vec3 target = vec3(mag, mag, mag); - c = vec4(target, 1.0); - } else { - c = texture2D(source, qt_TexCoord0); - } - gl_FragColor = qt_Opacity * c; -} |