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153 lines
4.1 KiB
153 lines
4.1 KiB
/******************************************************************** |
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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 <kwinglutils_export.h> |
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#include <QSize> |
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#include <QRegion> |
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#include <QSharedPointer> |
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#include <QExplicitlySharedDataPointer> |
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#include <QtGui/QMatrix4x4> |
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#include <epoxy/gl.h> |
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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 GLTexturePrivate; |
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enum TextureCoordinateType { |
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NormalizedCoordinates = 0, |
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UnnormalizedCoordinates |
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}; |
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class KWINGLUTILS_EXPORT GLTexture |
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{ |
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public: |
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GLTexture(); |
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GLTexture(const GLTexture& tex); |
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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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explicit GLTexture(const QString& fileName); |
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GLTexture(GLenum internalFormat, int width, int height, int levels = 1); |
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explicit GLTexture(GLenum internalFormat, const QSize &size, int levels = 1); |
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virtual ~GLTexture(); |
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GLTexture & operator = (const GLTexture& tex); |
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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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int height() const; |
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/** |
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* @since 4.7 |
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**/ |
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bool isYInverted() const; |
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/** |
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* @since 4.8 |
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**/ |
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void setYInverted(bool inverted); |
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/** |
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* Specifies which component of a texel is placed in each respective |
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* component of the vector returned to the shader. |
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* |
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* Valid values are GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA, GL_ONE and GL_ZERO. |
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* |
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* @see swizzleSupported() |
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* @since 5.2 |
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*/ |
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void setSwizzle(GLenum red, GLenum green, GLenum blue, GLenum alpha); |
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/** |
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* Returns a matrix that transforms texture coordinates of the given type, |
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* taking the texture target and the y-inversion flag into account. |
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* |
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* @since 4.11 |
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*/ |
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QMatrix4x4 matrix(TextureCoordinateType type) const; |
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void update(const QImage& image, const QPoint &offset = QPoint(0, 0), const QRect &src = QRect()); |
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virtual void discard(); |
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void bind(); |
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void unbind(); |
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void render(QRegion region, const QRect& rect, bool hardwareClipping = false); |
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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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GLenum internalFormat() const; |
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/** @short |
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* Make the texture fully transparent |
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* Warning: this clobbers the current framebuffer binding except on fglrx |
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*/ |
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void clear(); |
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bool isDirty() const; |
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void setFilter(GLenum filter); |
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void setWrapMode(GLenum mode); |
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void setDirty(); |
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void generateMipmaps(); |
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static bool framebufferObjectSupported(); |
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/** |
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* Returns true if texture swizzle is supported, and false otherwise |
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* |
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* Texture swizzle requires OpenGL 3.3, GL_ARB_texture_swizzle, or OpenGL ES 3.0. |
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* |
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* @since 5.2 |
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*/ |
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static bool supportsSwizzle(); |
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/** |
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* Returns @c true if texture formats R* are supported, and @c false otherwise. |
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* |
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* This requires OpenGL 3.0, GL_ARB_texture_rg or OpenGL ES 3.0 or GL_EXT_texture_rg. |
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* |
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* @since 5.2.1 |
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**/ |
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static bool supportsFormatRG(); |
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protected: |
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QExplicitlySharedDataPointer<GLTexturePrivate> d_ptr; |
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GLTexture(GLTexturePrivate& dd); |
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private: |
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Q_DECLARE_PRIVATE(GLTexture) |
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}; |
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} // namespace |
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/** @} */ |
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#endif
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