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81 lines
3.1 KiB
81 lines
3.1 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, 2019 |
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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 "GlyphCache.h" |
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#include "Magnum/Image.h" |
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#include "Magnum/PixelFormat.h" |
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#include "Magnum/GL/Context.h" |
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#include "Magnum/GL/Extensions.h" |
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#include "Magnum/GL/TextureFormat.h" |
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#include "Magnum/TextureTools/Atlas.h" |
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namespace Magnum { namespace Text { |
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GlyphCache::GlyphCache(const GL::TextureFormat internalFormat, const Vector2i& size, const Vector2i& padding): GlyphCache{internalFormat, size, size, padding} {} |
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GlyphCache::GlyphCache(const GL::TextureFormat internalFormat, const Vector2i& originalSize, const Vector2i& size, const Vector2i& padding): AbstractGlyphCache{originalSize, padding} { |
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/* Initialize the texture */ |
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_texture.setWrapping(GL::SamplerWrapping::ClampToEdge) |
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.setMinificationFilter(GL::SamplerFilter::Linear) |
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.setMagnificationFilter(GL::SamplerFilter::Linear) |
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.setStorage(1, internalFormat, size); |
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} |
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GlyphCache::GlyphCache(const Vector2i& size, const Vector2i& padding): GlyphCache{size, size, padding} {} |
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GlyphCache::GlyphCache(const Vector2i& originalSize, const Vector2i& size, const Vector2i& padding): GlyphCache{ |
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#ifndef MAGNUM_TARGET_GLES2 |
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GL::TextureFormat::R8, |
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#else |
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GL::TextureFormat::Luminance, |
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#endif |
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originalSize, size, padding} |
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{ |
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#ifndef MAGNUM_TARGET_GLES |
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MAGNUM_ASSERT_GL_EXTENSION_SUPPORTED(GL::Extensions::ARB::texture_rg); |
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#endif |
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} |
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GlyphCache::~GlyphCache() = default; |
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GlyphCacheFeatures GlyphCache::doFeatures() const { |
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#ifndef MAGNUM_TARGET_GLES |
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return GlyphCacheFeature::ImageDownload; |
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#else |
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return {}; |
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#endif |
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} |
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void GlyphCache::doSetImage(const Vector2i& offset, const ImageView2D& image) { |
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/** @todo some internalformat/format checking also here (if querying internal format is not slow) */ |
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_texture.setSubImage(0, offset, image); |
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} |
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#ifndef MAGNUM_TARGET_GLES |
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Image2D GlyphCache::doImage() { return _texture.image(0, PixelFormat::R8Unorm); } |
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#endif |
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}}
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