| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Data Visualization module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 3 or (at your option) any later version |
| ** approved by the KDE Free Qt Foundation. The licenses are as published by |
| ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the QtDataVisualization API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| |
| #ifndef TEXTUREHELPER_P_H |
| #define TEXTUREHELPER_P_H |
| |
| #include "datavisualizationglobal_p.h" |
| #include <QtGui/QRgb> |
| #include <QtGui/QLinearGradient> |
| #if !defined(QT_OPENGL_ES_2) |
| // 3D Textures are not supported by ES set |
| # include <QtGui/QOpenGLFunctions_2_1> |
| #endif |
| |
| QT_BEGIN_NAMESPACE_DATAVISUALIZATION |
| |
| class TextureHelper : protected QOpenGLFunctions |
| { |
| public: |
| TextureHelper(); |
| ~TextureHelper(); |
| |
| // Ownership of created texture is transferred to caller |
| GLuint create2DTexture(const QImage &image, bool useTrilinearFiltering = false, |
| bool convert = true, bool smoothScale = true, bool clampY = false); |
| GLuint create3DTexture(const QVector<uchar> *data, int width, int height, int depth, |
| QImage::Format dataFormat); |
| GLuint createCubeMapTexture(const QImage &image, bool useTrilinearFiltering = false); |
| // Returns selection texture and inserts generated framebuffers to framebuffer parameters |
| GLuint createSelectionTexture(const QSize &size, GLuint &frameBuffer, GLuint &depthBuffer); |
| GLuint createCursorPositionTexture(const QSize &size, GLuint &frameBuffer); |
| GLuint createUniformTexture(const QColor &color); |
| GLuint createGradientTexture(const QLinearGradient &gradient); |
| GLuint createDepthTexture(const QSize &size, GLuint textureSize); |
| // Returns depth texture and inserts generated framebuffer to parameter |
| GLuint createDepthTextureFrameBuffer(const QSize &size, GLuint &frameBuffer, GLuint textureSize); |
| void deleteTexture(GLuint *texture); |
| |
| private: |
| QImage convertToGLFormat(const QImage &srcImage); |
| void convertToGLFormatHelper(QImage &dstImage, const QImage &srcImage, GLenum texture_format); |
| QRgb qt_gl_convertToGLFormatHelper(QRgb src_pixel, GLenum texture_format); |
| |
| #if !defined(QT_OPENGL_ES_2) |
| QOpenGLFunctions_2_1 *m_openGlFunctions_2_1; // Not owned |
| #endif |
| friend class Bars3DRenderer; |
| friend class Surface3DRenderer; |
| friend class Scatter3DRenderer; |
| friend class Abstract3DRenderer; |
| }; |
| |
| QT_END_NAMESPACE_DATAVISUALIZATION |
| |
| #endif |