Long live Qt 4.5!

1 files changed, 566 insertions, 0 deletions

diff --git a/src/opengl/qgl.h b/src/opengl/qgl.h
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtOpenGL module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QGL_H
+#define QGL_H
+
+#include <QtGui/qwidget.h>
+#include <QtOpenGL/qglcolormap.h>
+#include <QtCore/qmap.h>
+
+QT_BEGIN_HEADER
+
+#if defined(Q_WS_WIN)
+# include <QtCore/qt_windows.h>
+#endif
+
+#if defined(Q_WS_MAC)
+# include <OpenGL/gl.h>
+# include <OpenGL/glu.h>
+#elif defined(QT_OPENGL_ES_1) || defined(QT_OPENGL_ES_1_CL)
+# include <GLES/gl.h>
+#ifndef GL_DOUBLE
+# define GL_DOUBLE GL_FLOAT
+#endif
+#ifndef GLdouble
+typedef GLfloat GLdouble;
+#endif
+#elif defined(QT_OPENGL_ES_2)
+# include <GLES2/gl2.h>
+#ifndef GL_DOUBLE
+# define GL_DOUBLE GL_FLOAT
+#endif
+#ifndef GLdouble
+typedef GLfloat GLdouble;
+#endif
+#else
+# include <GL/gl.h>
+# ifndef QT_LINUXBASE
+#   include <GL/glu.h>
+# endif
+#endif
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(OpenGL)
+
+#if defined(Q_WS_MAC) && defined (QT_BUILD_OPENGL_LIB) && !defined(QT_MAC_USE_COCOA) && !defined(QDOC)
+#define Q_MAC_COMPAT_GL_FUNCTIONS
+
+template <typename T>
+struct QMacGLCompatTypes
+{
+    typedef long CompatGLint;
+    typedef unsigned long CompatGLuint;
+    typedef unsigned long CompatGLenum;
+};
+
+template <>
+struct QMacGLCompatTypes<long>
+{
+    typedef int CompatGLint;
+    typedef unsigned int CompatGLuint;
+    typedef unsigned int CompatGLenum;
+};
+
+typedef QMacGLCompatTypes<GLint>::CompatGLint QMacCompatGLint;
+typedef QMacGLCompatTypes<GLint>::CompatGLuint QMacCompatGLuint;
+typedef QMacGLCompatTypes<GLint>::CompatGLenum QMacCompatGLenum;
+
+#endif
+
+#ifdef QT3_SUPPORT
+#define QGL_VERSION        460
+#define QGL_VERSION_STR        "4.6"
+inline QT3_SUPPORT const char *qGLVersion() {
+    return QGL_VERSION_STR;
+}
+#endif
+
+#if defined(Q_WS_WIN) || defined(Q_WS_MAC)
+class QGLCmap;
+#endif
+
+class QPixmap;
+#if defined(Q_WS_X11) && !defined(QT_OPENGL_ES)
+class QGLOverlayWidget;
+#endif
+class QGLWidgetPrivate;
+class QGLContextPrivate;
+
+// Namespace class:
+namespace QGL
+{
+    enum FormatOption {
+        DoubleBuffer            = 0x0001,
+        DepthBuffer             = 0x0002,
+        Rgba                    = 0x0004,
+        AlphaChannel            = 0x0008,
+        AccumBuffer             = 0x0010,
+        StencilBuffer           = 0x0020,
+        StereoBuffers           = 0x0040,
+        DirectRendering         = 0x0080,
+        HasOverlay              = 0x0100,
+        SampleBuffers           = 0x0200,
+        SingleBuffer            = DoubleBuffer    << 16,
+        NoDepthBuffer           = DepthBuffer     << 16,
+        ColorIndex              = Rgba            << 16,
+        NoAlphaChannel          = AlphaChannel    << 16,
+        NoAccumBuffer           = AccumBuffer     << 16,
+        NoStencilBuffer         = StencilBuffer   << 16,
+        NoStereoBuffers         = StereoBuffers   << 16,
+        IndirectRendering       = DirectRendering << 16,
+        NoOverlay               = HasOverlay      << 16,
+        NoSampleBuffers         = SampleBuffers   << 16
+    };
+    Q_DECLARE_FLAGS(FormatOptions, FormatOption)
+}
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QGL::FormatOptions)
+
+class QGLFormatPrivate;
+
+class Q_OPENGL_EXPORT QGLFormat
+{
+public:
+    QGLFormat();
+    QGLFormat(QGL::FormatOptions options, int plane = 0);
+    QGLFormat(const QGLFormat &other);
+    QGLFormat &operator=(const QGLFormat &other);
+    ~QGLFormat();
+
+    void setDepthBufferSize(int size);
+    int  depthBufferSize() const;
+
+    void setAccumBufferSize(int size);
+    int  accumBufferSize() const;
+
+    void setRedBufferSize(int size);
+    int  redBufferSize() const;
+
+    void setGreenBufferSize(int size);
+    int  greenBufferSize() const;
+
+    void setBlueBufferSize(int size);
+    int  blueBufferSize() const;
+
+    void setAlphaBufferSize(int size);
+    int  alphaBufferSize() const;
+
+    void setStencilBufferSize(int size);
+    int  stencilBufferSize() const;
+
+    void setSampleBuffers(bool enable);
+    bool sampleBuffers() const;
+
+    void setSamples(int numSamples);
+    int  samples() const;
+
+    void setSwapInterval(int interval);
+    int  swapInterval() const;
+
+    bool doubleBuffer() const;
+    void setDoubleBuffer(bool enable);
+    bool depth() const;
+    void setDepth(bool enable);
+    bool rgba() const;
+    void setRgba(bool enable);
+    bool alpha() const;
+    void setAlpha(bool enable);
+    bool accum() const;
+    void setAccum(bool enable);
+    bool stencil() const;
+    void setStencil(bool enable);
+    bool stereo() const;
+    void setStereo(bool enable);
+    bool directRendering() const;
+    void setDirectRendering(bool enable);
+    bool hasOverlay() const;
+    void setOverlay(bool enable);
+
+    int plane() const;
+    void setPlane(int plane);
+
+    void setOption(QGL::FormatOptions opt);
+    bool testOption(QGL::FormatOptions opt) const;
+
+    static QGLFormat defaultFormat();
+    static void setDefaultFormat(const QGLFormat& f);
+
+    static QGLFormat defaultOverlayFormat();
+    static void setDefaultOverlayFormat(const QGLFormat& f);
+
+    static bool hasOpenGL();
+    static bool hasOpenGLOverlays();
+
+    enum  OpenGLVersionFlag {
+        OpenGL_Version_None               = 0x00000000,
+        OpenGL_Version_1_1                = 0x00000001,
+        OpenGL_Version_1_2                = 0x00000002,
+        OpenGL_Version_1_3                = 0x00000004,
+        OpenGL_Version_1_4                = 0x00000008,
+        OpenGL_Version_1_5                = 0x00000010,
+        OpenGL_Version_2_0                = 0x00000020,
+        OpenGL_Version_2_1                = 0x00000040,
+        OpenGL_ES_Common_Version_1_0      = 0x00000080,
+        OpenGL_ES_CommonLite_Version_1_0  = 0x00000100,
+        OpenGL_ES_Common_Version_1_1      = 0x00000200,
+        OpenGL_ES_CommonLite_Version_1_1  = 0x00000400,
+        OpenGL_ES_Version_2_0             = 0x00000800,
+        OpenGL_Version_3_0                = 0x00001000
+    };
+    Q_DECLARE_FLAGS(OpenGLVersionFlags, OpenGLVersionFlag)
+
+    static OpenGLVersionFlags openGLVersionFlags();
+
+private:
+    QGLFormatPrivate *d;
+
+    friend Q_OPENGL_EXPORT bool operator==(const QGLFormat&, const QGLFormat&);
+    friend Q_OPENGL_EXPORT bool operator!=(const QGLFormat&, const QGLFormat&);
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QGLFormat::OpenGLVersionFlags)
+
+Q_OPENGL_EXPORT bool operator==(const QGLFormat&, const QGLFormat&);
+Q_OPENGL_EXPORT bool operator!=(const QGLFormat&, const QGLFormat&);
+
+class Q_OPENGL_EXPORT QGLContext
+{
+    Q_DECLARE_PRIVATE(QGLContext)
+public:
+    QGLContext(const QGLFormat& format, QPaintDevice* device);
+    QGLContext(const QGLFormat& format);
+    virtual ~QGLContext();
+
+    virtual bool create(const QGLContext* shareContext = 0);
+    bool isValid() const;
+    bool isSharing() const;
+    void reset();
+
+    // ### Qt 5: make format() return a const ref instead
+    QGLFormat format() const;
+    QGLFormat requestedFormat() const;
+    void setFormat(const QGLFormat& format);
+
+    // ### Qt 5: return bools + maybe remove virtuals
+    virtual void makeCurrent();
+    virtual void doneCurrent();
+
+    virtual void swapBuffers() const;
+
+    GLuint bindTexture(const QImage &image, GLenum target = GL_TEXTURE_2D,
+                       GLint format = GL_RGBA);
+    GLuint bindTexture(const QPixmap &pixmap, GLenum target = GL_TEXTURE_2D,
+                       GLint format = GL_RGBA);
+    GLuint bindTexture(const QString &fileName);
+
+    void deleteTexture(GLuint tx_id);
+
+    void drawTexture(const QRectF &target, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);
+    void drawTexture(const QPointF &point, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);
+
+#ifdef Q_MAC_COMPAT_GL_FUNCTIONS
+    GLuint bindTexture(const QImage &image, QMacCompatGLenum = GL_TEXTURE_2D,
+                       QMacCompatGLint format = GL_RGBA);
+    GLuint bindTexture(const QPixmap &pixmap, QMacCompatGLenum = GL_TEXTURE_2D,
+                       QMacCompatGLint format = GL_RGBA);
+
+    void deleteTexture(QMacCompatGLuint tx_id);
+
+    void drawTexture(const QRectF &target, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D);
+    void drawTexture(const QPointF &point, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D);
+#endif
+
+    static void setTextureCacheLimit(int size);
+    static int textureCacheLimit();
+
+    void *getProcAddress(const QString &proc) const;
+    QPaintDevice* device() const;
+    QColor overlayTransparentColor() const;
+
+    static const QGLContext* currentContext();
+
+protected:
+    virtual bool chooseContext(const QGLContext* shareContext = 0);
+
+#if defined(Q_WS_WIN)
+    virtual int choosePixelFormat(void* pfd, HDC pdc);
+#endif
+#if defined(Q_WS_X11) && !defined(QT_OPENGL_ES)
+    virtual void* tryVisual(const QGLFormat& f, int bufDepth = 1);
+    virtual void* chooseVisual();
+#endif
+#if defined(Q_WS_MAC)
+    virtual void* chooseMacVisual(GDHandle);
+#endif
+
+    bool deviceIsPixmap() const;
+    bool windowCreated() const;
+    void setWindowCreated(bool on);
+    bool initialized() const;
+    void setInitialized(bool on);
+    void generateFontDisplayLists(const QFont & fnt, int listBase); // ### Qt 5: remove
+
+    uint colorIndex(const QColor& c) const;
+    void setValid(bool valid);
+    void setDevice(QPaintDevice *pDev);
+
+protected:
+    static QGLContext* currentCtx;
+
+private:
+    QGLContextPrivate* d_ptr;
+
+    friend class QGLPixelBuffer;
+    friend class QGLPixelBufferPrivate;
+    friend class QGLWidget;
+    friend class QGLDrawable;
+    friend class QGLWidgetPrivate;
+    friend class QGLGlyphCache;
+    friend class QOpenGLPaintEngine;
+    friend class QOpenGLPaintEnginePrivate;
+    friend class QGL2PaintEngineEx;
+    friend class QGL2PaintEngineExPrivate;
+    friend class QGLWindowSurface;
+    friend class QGLPixmapData;
+    friend class QGLPixmapFilterBase;
+    friend QGLFormat::OpenGLVersionFlags QGLFormat::openGLVersionFlags();
+#ifdef Q_WS_MAC
+public:
+    void updatePaintDevice();
+private:
+    friend class QMacGLWindowChangeEvent;
+    friend QGLContextPrivate *qt_phonon_get_dptr(const QGLContext *);
+#endif
+#ifdef Q_WS_WIN
+    friend class QGLFramebufferObject;
+    friend class QGLFramebufferObjectPrivate;
+    friend bool qt_resolve_GLSL_functions(QGLContext *ctx);
+    friend bool qt_createGLSLProgram(QGLContext *ctx, GLuint &program, const char *shader_src, GLuint &shader);
+#endif
+private:
+    Q_DISABLE_COPY(QGLContext)
+};
+
+
+class Q_OPENGL_EXPORT QGLWidget : public QWidget
+{
+    Q_OBJECT
+    Q_DECLARE_PRIVATE(QGLWidget)
+public:
+    explicit QGLWidget(QWidget* parent=0,
+                       const QGLWidget* shareWidget = 0, Qt::WindowFlags f=0);
+    explicit QGLWidget(QGLContext *context, QWidget* parent=0,
+                       const QGLWidget* shareWidget = 0, Qt::WindowFlags f=0);
+    explicit QGLWidget(const QGLFormat& format, QWidget* parent=0,
+                       const QGLWidget* shareWidget = 0, Qt::WindowFlags f=0);
+#ifdef QT3_SUPPORT
+    QT3_SUPPORT_CONSTRUCTOR QGLWidget(QWidget* parent, const char* name,
+                                    const QGLWidget* shareWidget = 0, Qt::WindowFlags f=0);
+    QT3_SUPPORT_CONSTRUCTOR QGLWidget(QGLContext *context, QWidget* parent, const char* name,
+                                    const QGLWidget* shareWidget = 0, Qt::WindowFlags f=0);
+    QT3_SUPPORT_CONSTRUCTOR QGLWidget(const QGLFormat& format, QWidget* parent, const char* name,
+                                    const QGLWidget* shareWidget = 0, Qt::WindowFlags f=0);
+#endif
+    ~QGLWidget();
+
+    void qglColor(const QColor& c) const;
+    void qglClearColor(const QColor& c) const;
+
+    bool isValid() const;
+    bool isSharing() const;
+
+    // ### Qt 5: return bools
+    void makeCurrent();
+    void doneCurrent();
+
+    bool doubleBuffer() const;
+    void swapBuffers();
+
+    // ### Qt 5: make format() return a const ref instead
+    QGLFormat format() const;
+    void setFormat(const QGLFormat& format);
+
+    const QGLContext* context() const;
+    void setContext(QGLContext* context, const QGLContext* shareContext = 0,
+                    bool deleteOldContext = true);
+
+    QPixmap renderPixmap(int w = 0, int h = 0, bool useContext = false);
+    QImage grabFrameBuffer(bool withAlpha = false);
+
+    void makeOverlayCurrent();
+    const QGLContext* overlayContext() const;
+
+    static QImage convertToGLFormat(const QImage& img);
+
+    void setMouseTracking(bool enable);
+
+    const QGLColormap & colormap() const;
+    void  setColormap(const QGLColormap & map);
+
+    void renderText(int x, int y, const QString & str,
+                     const QFont & fnt = QFont(), int listBase = 2000);
+    void renderText(double x, double y, double z, const QString & str,
+                     const QFont & fnt = QFont(), int listBase = 2000);
+    QPaintEngine *paintEngine() const;
+
+    GLuint bindTexture(const QImage &image, GLenum target = GL_TEXTURE_2D,
+                       GLint format = GL_RGBA);
+    GLuint bindTexture(const QPixmap &pixmap, GLenum target = GL_TEXTURE_2D,
+                       GLint format = GL_RGBA);
+    GLuint bindTexture(const QString &fileName);
+
+    void deleteTexture(GLuint tx_id);
+
+    void drawTexture(const QRectF &target, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);
+    void drawTexture(const QPointF &point, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D);
+
+#ifdef Q_MAC_COMPAT_GL_FUNCTIONS
+    GLuint bindTexture(const QImage &image, QMacCompatGLenum = GL_TEXTURE_2D,
+                       QMacCompatGLint format = GL_RGBA);
+    GLuint bindTexture(const QPixmap &pixmap, QMacCompatGLenum = GL_TEXTURE_2D,
+                       QMacCompatGLint format = GL_RGBA);
+
+    void deleteTexture(QMacCompatGLuint tx_id);
+
+    void drawTexture(const QRectF &target, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D);
+    void drawTexture(const QPointF &point, QMacCompatGLuint textureId, QMacCompatGLenum textureTarget = GL_TEXTURE_2D);
+#endif
+
+public Q_SLOTS:
+    virtual void updateGL();
+    virtual void updateOverlayGL();
+
+protected:
+    bool event(QEvent *);
+    virtual void initializeGL();
+    virtual void resizeGL(int w, int h);
+    virtual void paintGL();
+
+    virtual void initializeOverlayGL();
+    virtual void resizeOverlayGL(int w, int h);
+    virtual void paintOverlayGL();
+
+    void setAutoBufferSwap(bool on);
+    bool autoBufferSwap() const;
+
+    void paintEvent(QPaintEvent*);
+    void resizeEvent(QResizeEvent*);
+
+    virtual void glInit();
+    virtual void glDraw();
+    int fontDisplayListBase(const QFont & fnt, int listBase = 2000); // ### Qt 5: remove
+
+private:
+    Q_DISABLE_COPY(QGLWidget)
+
+#ifdef Q_WS_MAC
+    friend class QMacGLWindowChangeEvent;
+#endif
+    friend class QGLDrawable;
+    friend class QGLPixelBuffer;
+    friend class QGLPixelBufferPrivate;
+    friend class QGLContext;
+    friend class QGLOverlayWidget;
+    friend class QOpenGLPaintEngine;
+};
+
+
+//
+// QGLFormat inline functions
+//
+
+inline bool QGLFormat::doubleBuffer() const
+{
+    return testOption(QGL::DoubleBuffer);
+}
+
+inline bool QGLFormat::depth() const
+{
+    return testOption(QGL::DepthBuffer);
+}
+
+inline bool QGLFormat::rgba() const
+{
+    return testOption(QGL::Rgba);
+}
+
+inline bool QGLFormat::alpha() const
+{
+    return testOption(QGL::AlphaChannel);
+}
+
+inline bool QGLFormat::accum() const
+{
+    return testOption(QGL::AccumBuffer);
+}
+
+inline bool QGLFormat::stencil() const
+{
+    return testOption(QGL::StencilBuffer);
+}
+
+inline bool QGLFormat::stereo() const
+{
+    return testOption(QGL::StereoBuffers);
+}
+
+inline bool QGLFormat::directRendering() const
+{
+    return testOption(QGL::DirectRendering);
+}
+
+inline bool QGLFormat::hasOverlay() const
+{
+    return testOption(QGL::HasOverlay);
+}
+
+inline bool QGLFormat::sampleBuffers() const
+{
+    return testOption(QGL::SampleBuffers);
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QGL_H