From 940b4d1848e8c70ab7642901a68594e8016caffc Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 18:51:28 +0200 Subject: Adding upstream version 1:7.0.4. Signed-off-by: Daniel Baumann --- slideshow/opengl/fadeBlackFragmentShader.glsl | 35 +++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 slideshow/opengl/fadeBlackFragmentShader.glsl (limited to 'slideshow/opengl/fadeBlackFragmentShader.glsl') 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: */ -- cgit v1.2.3