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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:51:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:51:28 +0000 |
commit | 940b4d1848e8c70ab7642901a68594e8016caffc (patch) | |
tree | eb72f344ee6c3d9b80a7ecc079ea79e9fba8676d /slideshow/opengl/fadeBlackFragmentShader.glsl | |
parent | Initial commit. (diff) | |
download | libreoffice-940b4d1848e8c70ab7642901a68594e8016caffc.tar.xz libreoffice-940b4d1848e8c70ab7642901a68594e8016caffc.zip |
Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'slideshow/opengl/fadeBlackFragmentShader.glsl')
-rw-r--r-- | slideshow/opengl/fadeBlackFragmentShader.glsl | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/slideshow/opengl/fadeBlackFragmentShader.glsl b/slideshow/opengl/fadeBlackFragmentShader.glsl new file mode 100644 index 000000000..3d618a3b4 --- /dev/null +++ b/slideshow/opengl/fadeBlackFragmentShader.glsl @@ -0,0 +1,35 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + */ + +#version 120 + +uniform sampler2D leavingSlideTexture; +uniform sampler2D enteringSlideTexture; +uniform float time; +varying vec2 v_texturePosition; + +void main() { +#ifdef use_white + vec4 color = vec4(1.0, 1.0, 1.0, 1.0); +#else + vec4 color = vec4(0.0, 0.0, 0.0, 1.0); +#endif + 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, color, amount); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |