/usr/include/kwingltexture.h is in kwin-dev 4:5.12.4-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2006-2007 Rivo Laks <rivolaks@hot.ee>
Copyright (C) 2010, 2011 Martin Gräßlin <mgraesslin@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#ifndef KWIN_GLTEXTURE_H
#define KWIN_GLTEXTURE_H
#include <kwinglutils_export.h>
#include <QSize>
#include <QRegion>
#include <QSharedPointer>
#include <QExplicitlySharedDataPointer>
#include <QtGui/QMatrix4x4>
#include <epoxy/gl.h>
class QImage;
class QPixmap;
/** @addtogroup kwineffects */
/** @{ */
namespace KWin
{
class GLVertexBuffer;
class GLTexturePrivate;
enum TextureCoordinateType {
NormalizedCoordinates = 0,
UnnormalizedCoordinates
};
class KWINGLUTILS_EXPORT GLTexture
{
public:
GLTexture();
GLTexture(const GLTexture& tex);
explicit GLTexture(const QImage& image, GLenum target = GL_TEXTURE_2D);
explicit GLTexture(const QPixmap& pixmap, GLenum target = GL_TEXTURE_2D);
explicit GLTexture(const QString& fileName);
GLTexture(GLenum internalFormat, int width, int height, int levels = 1);
explicit GLTexture(GLenum internalFormat, const QSize &size, int levels = 1);
virtual ~GLTexture();
GLTexture & operator = (const GLTexture& tex);
bool isNull() const;
QSize size() const;
int width() const;
int height() const;
/**
* @since 4.7
**/
bool isYInverted() const;
/**
* @since 4.8
**/
void setYInverted(bool inverted);
/**
* Specifies which component of a texel is placed in each respective
* component of the vector returned to the shader.
*
* Valid values are GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA, GL_ONE and GL_ZERO.
*
* @see swizzleSupported()
* @since 5.2
*/
void setSwizzle(GLenum red, GLenum green, GLenum blue, GLenum alpha);
/**
* Returns a matrix that transforms texture coordinates of the given type,
* taking the texture target and the y-inversion flag into account.
*
* @since 4.11
*/
QMatrix4x4 matrix(TextureCoordinateType type) const;
void update(const QImage& image, const QPoint &offset = QPoint(0, 0), const QRect &src = QRect());
virtual void discard();
void bind();
void unbind();
void render(QRegion region, const QRect& rect, bool hardwareClipping = false);
GLuint texture() const;
GLenum target() const;
GLenum filter() const;
GLenum internalFormat() const;
/** @short
* Make the texture fully transparent
* Warning: this clobbers the current framebuffer binding except on fglrx
*/
void clear();
bool isDirty() const;
void setFilter(GLenum filter);
void setWrapMode(GLenum mode);
void setDirty();
void generateMipmaps();
static bool framebufferObjectSupported();
/**
* Returns true if texture swizzle is supported, and false otherwise
*
* Texture swizzle requires OpenGL 3.3, GL_ARB_texture_swizzle, or OpenGL ES 3.0.
*
* @since 5.2
*/
static bool supportsSwizzle();
/**
* Returns @c true if texture formats R* are supported, and @c false otherwise.
*
* This requires OpenGL 3.0, GL_ARB_texture_rg or OpenGL ES 3.0 or GL_EXT_texture_rg.
*
* @since 5.2.1
**/
static bool supportsFormatRG();
protected:
QExplicitlySharedDataPointer<GLTexturePrivate> d_ptr;
GLTexture(GLTexturePrivate& dd);
private:
Q_DECLARE_PRIVATE(GLTexture)
};
} // namespace
/** @} */
#endif
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