author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 17 Dec 2009 09:20:16 +0200 | |
changeset 25 | 0ed94ceaa377 |
parent 0 | dd21522fd290 |
permissions | -rw-r--r-- |
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
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/* |
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* Copyright (C) 2005 Oliver Hunt <ojh16@student.canterbury.ac.nz>. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY |
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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|
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//TODO: We currently ignore the input kernel lengths |
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kernel vec4 convolve3x3(sampler image, float divisor, float bias, |
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vec3 m0, vec3 m1, vec3 m2) |
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{ |
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vec4 colour = vec4(0.0, 0.0, 0.0, 0.0); |
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vec2 pos= samplerCoord(image); |
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colour = sample(image, pos + vec2(-1.0, -1.0)) *m0.x; |
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colour += sample(image, pos + vec2(-1.0, 0.0)) *m0.y; |
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colour += sample(image, pos + vec2(-1.0, 1.0)) *m0.z; |
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colour += sample(image, pos + vec2( 0.0, -1.0)) *m1.x; |
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colour += sample(image, pos) * m1.y; |
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
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colour += sample(image, pos + vec2( 0.0, 1.0))*m1.z; |
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
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colour += sample(image, pos + vec2( 1.0, -1.0))*m2.x; |
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colour += sample(image, pos + vec2( 1.0, 0.0))*m2.y; |
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colour += sample(image, pos + vec2( 1.0, 1.0))*m2.z; |
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return colour / divisor + bias; |
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} |
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|
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kernel vec4 mergeNormals(sampler Nx, sampler Ny, sampler src, float surfaceScale) |
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{ |
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vec3 N = vec3(surfaceScale * sample(Nx, samplerCoord(Nx)).a, -surfaceScale * sample(Ny, samplerCoord(Ny)).a, 1.0); |
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N = normalize(N); |
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return vec4(N.x, N.y, N.z, sample(src, samplerCoord(src)).a); |
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} |