diff options
Diffstat (limited to 'slideshow/opengl')
-rw-r--r-- | slideshow/opengl/fadeBlackFragmentShader.glsl | 50 | ||||
-rw-r--r-- | slideshow/opengl/fadeFragmentShader.glsl | 42 |
2 files changed, 92 insertions, 0 deletions
diff --git a/slideshow/opengl/fadeBlackFragmentShader.glsl b/slideshow/opengl/fadeBlackFragmentShader.glsl new file mode 100644 index 000000000000..7f80cc55adcb --- /dev/null +++ b/slideshow/opengl/fadeBlackFragmentShader.glsl @@ -0,0 +1,50 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2015 by Collabora, Ltd. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#version 120 + +uniform sampler2D leavingSlideTexture; +uniform sampler2D enteringSlideTexture; +uniform float time; +varying vec2 v_texturePosition; + +void main() { + vec4 black = vec4(0.0, 0.0, 0.0, 1.0); + vec4 texel; + float amount; + if (time < 0.5) { + texel = texture2D(leavingSlideTexture, v_texturePosition); + amount = time * 2; + } else { + texel = texture2D(enteringSlideTexture, v_texturePosition); + amount = (1.0 - time) * 2; + } + gl_FragColor = mix(texel, black, amount); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/slideshow/opengl/fadeFragmentShader.glsl b/slideshow/opengl/fadeFragmentShader.glsl new file mode 100644 index 000000000000..aab848e3c917 --- /dev/null +++ b/slideshow/opengl/fadeFragmentShader.glsl @@ -0,0 +1,42 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2015 by Collabora, Ltd. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#version 120 + +uniform sampler2D leavingSlideTexture; +uniform sampler2D enteringSlideTexture; +uniform float time; +varying vec2 v_texturePosition; + +void main() { + vec4 leavingFragment = texture2D(leavingSlideTexture, v_texturePosition); + vec4 enteringFragment = texture2D(enteringSlideTexture, v_texturePosition); + gl_FragColor = mix(leavingFragment, enteringFragment, time); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |