127 lines
3.4 KiB
C
127 lines
3.4 KiB
C
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/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2006-2007 Rivo Laks <rivolaks@hot.ee>
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Copyright (C) 2010, 2011 Martin Gräßlin <mgraesslin@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program 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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#ifndef KWIN_GLTEXTURE_H
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#define KWIN_GLTEXTURE_H
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#include "kwinconfig.h" // KWIN_HAVE_OPENGL
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#include "kwinglobals.h"
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#ifdef KWIN_HAVE_OPENGL
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#include <QtCore/QSize>
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#include <QtCore/QSharedData>
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class QImage;
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class QPixmap;
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/** @addtogroup kwineffects */
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/** @{ */
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namespace KWin
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{
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class GLVertexBuffer;
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class KWIN_EXPORT GLTexture
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: public QSharedData
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{
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public:
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GLTexture();
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explicit GLTexture(const QImage& image, GLenum target = GL_TEXTURE_2D);
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explicit GLTexture(const QPixmap& pixmap, GLenum target = GL_TEXTURE_2D);
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GLTexture(const QString& fileName);
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GLTexture(int width, int height);
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virtual ~GLTexture();
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bool isNull() const;
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QSize size() const;
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int width() const {
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return mSize.width(); /// @since 4.5
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}
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int height() const {
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return mSize.height(); /// @since 4.5
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}
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virtual bool load(const QImage& image, GLenum target = GL_TEXTURE_2D);
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virtual bool load(const QPixmap& pixmap, GLenum target = GL_TEXTURE_2D);
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virtual bool load(const QString& fileName);
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virtual void discard();
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virtual void bind();
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virtual void unbind();
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void render(QRegion region, const QRect& rect);
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GLuint texture() const;
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GLenum target() const;
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GLenum filter() const;
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virtual bool isDirty() const;
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void setTexture(GLuint texture);
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void setTarget(GLenum target);
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void setFilter(GLenum filter);
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void setWrapMode(GLenum mode);
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virtual void setDirty();
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static void initStatic();
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static bool NPOTTextureSupported() {
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return sNPOTTextureSupported;
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}
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static bool framebufferObjectSupported() {
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return sFramebufferObjectSupported;
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}
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static bool saturationSupported() {
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return sSaturationSupported;
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}
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protected:
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void enableFilter();
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QImage convertToGLFormat(const QImage& img) const;
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GLuint mTexture;
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GLenum mTarget;
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GLenum mFilter;
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QSize mSize;
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QSizeF mScale; // to un-normalize GL_TEXTURE_2D
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bool y_inverted; // texture has y inverted
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bool can_use_mipmaps;
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bool has_valid_mipmaps;
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private:
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void init();
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int mUnnormalizeActive; // 0 - no, otherwise refcount
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int mNormalizeActive; // 0 - no, otherwise refcount
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GLVertexBuffer* m_vbo;
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QSize m_cachedSize;
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static bool sNPOTTextureSupported;
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static bool sFramebufferObjectSupported;
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static bool sSaturationSupported;
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Q_DISABLE_COPY(GLTexture)
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};
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} // namespace
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#endif
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/** @} */
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#endif
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