ftpiiu_plugin/source/switch/imgui_fsh.glsl

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// ftpd is a server implementation based on the following:
// - RFC 959 (https://tools.ietf.org/html/rfc959)
// - RFC 3659 (https://tools.ietf.org/html/rfc3659)
// - suggested implementation details from https://cr.yp.to/ftp/filesystem.html
//
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// The MIT License (MIT)
//
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// Copyright (C) 2020 Michael Theall
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//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
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#version 460
layout (location = 0) in vec2 vtxUv;
layout (location = 1) in vec4 vtxColor;
layout (binding = 0) uniform sampler2D tex;
layout (std140, binding = 0) uniform FragUBO {
uint font;
} ubo;
layout (location = 0) out vec4 outColor;
void main()
{
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// font texture is single-channel (alpha)
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if (ubo.font != 0)
outColor = vtxColor * vec4 (vec3 (1.0), texture (tex, vtxUv).r);
else
outColor = vtxColor * texture (tex, vtxUv);
}