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100 lines
3.5 KiB
100 lines
3.5 KiB
/* |
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This file is part of Magnum. |
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Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 |
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Vladimír Vondruš <mosra@centrum.cz> |
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Permission is hereby granted, free of charge, to any person obtaining a |
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copy of this software and associated documentation files (the "Software"), |
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to deal in the Software without restriction, including without limitation |
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the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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and/or sell copies of the Software, and to permit persons to whom the |
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Software is furnished to do so, subject to the following conditions: |
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The above copyright notice and this permission notice shall be included |
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in all copies or substantial portions of the Software. |
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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 |
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THE 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 |
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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DEALINGS IN THE SOFTWARE. |
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*/ |
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#include "Magnum/Shaders/Vector.h" |
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#include "Magnum/Text/AbstractFont.h" |
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#include "Magnum/Text/DistanceFieldGlyphCache.h" |
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#include "Magnum/Text/Renderer.h" |
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using namespace Magnum; |
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using namespace Magnum::Math::Literals; |
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int main() { |
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{ |
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/* [DistanceFieldGlyphCache-usage] */ |
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std::unique_ptr<Text::AbstractFont> font; |
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Text::DistanceFieldGlyphCache cache{Vector2i{2048}, Vector2i{384}, 16}; |
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font->fillGlyphCache(cache, "abcdefghijklmnopqrstuvwxyz" |
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"ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
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"0123456789?!:;,. "); |
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/* [DistanceFieldGlyphCache-usage] */ |
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} |
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{ |
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/* [GlyphCache-usage] */ |
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std::unique_ptr<Text::AbstractFont> font; |
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Text::GlyphCache cache{Vector2i{512}}; |
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font->fillGlyphCache(cache, "abcdefghijklmnopqrstuvwxyz" |
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"ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
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"0123456789?!:;,. "); |
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/* [GlyphCache-usage] */ |
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} |
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{ |
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Matrix3 projectionMatrix; |
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/* [Renderer-usage1] */ |
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/* Font instance, received from a plugin manager */ |
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std::unique_ptr<Text::AbstractFont> font; |
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/* Configured glyph cache */ |
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Text::GlyphCache cache{Vector2i{512}}; |
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font->fillGlyphCache(cache, "abcdefghijklmnopqrstuvwxyz" |
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"ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
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"0123456789?!:;,. "); |
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Shaders::Vector2D shader; |
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Buffer vertexBuffer, indexBuffer; |
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Mesh mesh; |
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/* Render the text, centered */ |
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std::tie(mesh, std::ignore) = Text::Renderer2D::render(*font, cache, 0.15f, |
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"Hello World!", vertexBuffer, indexBuffer, BufferUsage::StaticDraw, |
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Text::Alignment::LineCenter); |
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/* Draw the text on the screen */ |
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shader.setTransformationProjectionMatrix(projectionMatrix) |
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.setColor(0xffffff_rgbf) |
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.setVectorTexture(cache.texture()); |
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mesh.draw(shader); |
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/* [Renderer-usage1] */ |
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/* [Renderer-usage2] */ |
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/* Initialize the renderer and reserve memory for enough glyphs */ |
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Text::Renderer2D renderer{*font, cache, 0.15f, Text::Alignment::LineCenter}; |
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renderer.reserve(32, BufferUsage::DynamicDraw, BufferUsage::StaticDraw); |
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/* Update the text occasionally */ |
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renderer.render("Hello World Countdown: 10"); |
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/* Draw the text on the screen */ |
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shader.setTransformationProjectionMatrix(projectionMatrix) |
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.setColor(0xffffff_rgbf) |
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.setVectorTexture(cache.texture()); |
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renderer.mesh().draw(shader); |
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/* [Renderer-usage2] */ |
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} |
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}
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