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48 lines
1.8 KiB
GLSL
48 lines
1.8 KiB
GLSL
/******************************************************************************
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* The MIT License (MIT)
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*
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* Copyright (c) 2015-2018 Baldur Karlsson
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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******************************************************************************/
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varying vec4 tex;
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varying vec2 glyphuv;
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attribute vec2 pos;
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attribute vec2 uv;
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attribute float charidx;
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// must match defines in gl_rendertext.cpp
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#define FONT_FIRST_CHAR 32
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#define FONT_LAST_CHAR 126
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uniform vec4 posdata[FONT_LAST_CHAR - FONT_FIRST_CHAR + 1];
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uniform vec4 uvdata[FONT_LAST_CHAR - FONT_FIRST_CHAR + 1];
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void main(void)
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{
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vec4 glyphposdata = posdata[int(charidx)];
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vec4 glyphuvdata = uvdata[int(charidx)];
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gl_Position = vec4(pos, 1, 1);
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glyphuv.xy = (uv.xy - glyphposdata.xy) * glyphposdata.zw;
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tex = glyphuvdata;
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}
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