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49 lines
2.0 KiB
49 lines
2.0 KiB
15 years ago
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/*
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Copyright © 2010, 2011 Vladimír Vondruš <mosra@centrum.cz>
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This file is part of Magnum.
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Magnum is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License version 3
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only, as published by the Free Software Foundation.
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Magnum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License version 3 for more details.
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*/
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#include "AbstractTexture.h"
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namespace Magnum {
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/* Check correctness of binary OR in setMinificationFilter(). If nobody fucks
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anything up, this assert should produce the same results on all dimensions,
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thus testing only on AbstractTexture. */
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static_assert(((AbstractTexture::NearestNeighborFilter|AbstractTexture::BaseMipLevel) == GL_NEAREST) &&
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((AbstractTexture::NearestNeighborFilter|AbstractTexture::NearestMipLevel) == GL_NEAREST_MIPMAP_NEAREST) &&
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((AbstractTexture::NearestNeighborFilter|AbstractTexture::LinearMipInterpolation) == GL_NEAREST_MIPMAP_LINEAR) &&
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((AbstractTexture::LinearFilter|AbstractTexture::BaseMipLevel) == GL_LINEAR) &&
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((AbstractTexture::LinearFilter|AbstractTexture::NearestMipLevel) == GL_LINEAR_MIPMAP_NEAREST) &&
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((AbstractTexture::LinearFilter|AbstractTexture::LinearMipInterpolation) == GL_LINEAR_MIPMAP_LINEAR),
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"Unsupported constants for GL texture filtering");
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void AbstractTexture::setMinificationFilter(Filter filter, Mipmap mipmap) {
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/* Only base mip level is supported on rectangle textures */
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if(target == GL_TEXTURE_RECTANGLE) mipmap = BaseMipLevel;
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bind();
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glTexParameteri(target, GL_TEXTURE_MIN_FILTER, filter|mipmap);
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unbind();
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}
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void AbstractTexture::generateMipmap() {
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if(target == GL_TEXTURE_RECTANGLE) return;
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bind();
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glGenerateMipmap(target);
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unbind();
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}
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}
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