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Diffstat (limited to 'src/datavisualization/utils/texturehelper_p.h')
-rw-r--r-- | src/datavisualization/utils/texturehelper_p.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/datavisualization/utils/texturehelper_p.h b/src/datavisualization/utils/texturehelper_p.h new file mode 100644 index 00000000..e5f54d00 --- /dev/null +++ b/src/datavisualization/utils/texturehelper_p.h @@ -0,0 +1,71 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc +** All rights reserved. +** For any questions to Digia, please use contact form at http://qt.digia.com +** +** This file is part of the QtDataVisualization module. +** +** Licensees holding valid Qt Enterprise licenses may use this file in +** accordance with the Qt Enterprise License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. +** +** If you have questions regarding the use of this file, please use +** contact form at http://qt.digia.com +** +****************************************************************************/ + +// +// 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 <QOpenGLFunctions> +#include <QRgb> + +QT_DATAVISUALIZATION_BEGIN_NAMESPACE + +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); + GLuint create2DTexture(const uchar *image, int width, int height); + GLuint createCubeMapTexture(const QImage &image, bool useTrilinearFiltering = false); + // Returns selection framebuffer and inserts generated texture id to texture parameters + GLuint createSelectionBuffer(const QSize &size, GLuint &texture, GLuint &depthTexture); + // Returns selection texture and inserts generated framebuffers to framebuffer parameters + GLuint createSelectionTexture(const QSize &size, GLuint &frameBuffer, GLuint &depthBuffer); +#if !defined(QT_OPENGL_ES_2) + // Returns depth texture and inserts generated framebuffer to parameter + GLuint createDepthTexture(const QSize &size, GLuint &frameBuffer, GLuint textureSize = 1); +#endif + void deleteTexture(const 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); + + friend class Bars3DRenderer; + friend class Surface3DRenderer; + friend class Scatter3DRenderer; +}; + +QT_DATAVISUALIZATION_END_NAMESPACE + +#endif |