diff options
Diffstat (limited to 'src/opengl/qgl_p.h')
| -rw-r--r-- | src/opengl/qgl_p.h | 237 |
1 files changed, 185 insertions, 52 deletions
diff --git a/src/opengl/qgl_p.h b/src/opengl/qgl_p.h index f64c65b..4748521 100644 --- a/src/opengl/qgl_p.h +++ b/src/opengl/qgl_p.h @@ -68,6 +68,10 @@ #include <QtGui/private/qegl_p.h> #endif +#if defined(Q_WS_QPA) +#include <QtGui/QPlatformGLContext> +#endif + QT_BEGIN_NAMESPACE class QGLContext; @@ -161,7 +165,7 @@ class QGLWidgetPrivate : public QWidgetPrivate public: QGLWidgetPrivate() : QWidgetPrivate() , disable_clear_on_painter_begin(false) -#ifdef Q_WS_QWS +#if defined(Q_WS_QWS) , wsurf(0) #endif #if defined(Q_WS_X11) && !defined(QT_NO_EGL) @@ -217,11 +221,9 @@ public: #endif }; -class QGLContextResource; +class QGLContextGroupResourceBase; class QGLSharedResourceGuard; -typedef QHash<QString, GLuint> QGLDDSCache; - // QGLContextPrivate has the responsibility of creating context groups. // QGLContextPrivate maintains the reference counter and destroys // context groups when needed. @@ -240,22 +242,22 @@ public: static void addShare(const QGLContext *context, const QGLContext *share); static void removeShare(const QGLContext *context); + private: QGLContextGroup(const QGLContext *context); QGLExtensionFuncs m_extensionFuncs; const QGLContext *m_context; // context group's representative QList<const QGLContext *> m_shares; - QHash<QGLContextResource *, void *> m_resources; + QHash<QGLContextGroupResourceBase *, void *> m_resources; QGLSharedResourceGuard *m_guards; // double-linked list of active guards. QAtomicInt m_refs; - QGLDDSCache m_dds_cache; void cleanupResources(const QGLContext *ctx); friend class QGLContext; friend class QGLContextPrivate; - friend class QGLContextResource; + friend class QGLContextGroupResourceBase; }; // Get the context that resources for "ctx" will transfer to once @@ -286,7 +288,8 @@ public: PVRTCTextureCompression = 0x00020000, FragmentShader = 0x00040000, ElementIndexUint = 0x00080000, - Depth24 = 0x00100000 + Depth24 = 0x00100000, + SRGBFrameBuffer = 0x00200000 }; Q_DECLARE_FLAGS(Extensions, Extension) @@ -323,6 +326,8 @@ class QGLTextureDestroyer; // all the GL2 engine uses: #define QT_GL_VERTEX_ARRAY_TRACKED_COUNT 3 +class QGLContextResourceBase; + class QGLContextPrivate { Q_DECLARE_PUBLIC(QGLContext) @@ -358,13 +363,21 @@ public: QGLCmap* cmap; HBITMAP hbitmap; HDC hbitmap_hdc; + Qt::HANDLE threadId; #endif #ifndef QT_NO_EGL - uint ownsEglContext : 1; QEglContext *eglContext; EGLSurface eglSurface; void destroyEglSurfaceForDevice(); EGLSurface eglSurfaceForDevice() const; + static QEglProperties *extraWindowSurfaceCreationProps; + static void setExtraWindowSurfaceCreationProps(QEglProperties *props); +#endif + +#if defined(Q_WS_QPA) + QPlatformGLContext *platformContext; + void setupSharing(); + #elif defined(Q_WS_X11) || defined(Q_WS_MAC) void* cx; #endif @@ -407,6 +420,13 @@ public: uint workaround_brokenTextureFromPixmap : 1; uint workaround_brokenTextureFromPixmap_init : 1; + uint workaround_brokenAlphaTexSubImage : 1; + uint workaround_brokenAlphaTexSubImage_init : 1; + +#ifndef QT_NO_EGL + uint ownsEglContext : 1; +#endif + QPaintDevice *paintDevice; QColor transpColor; QGLContext *q_ptr; @@ -419,6 +439,7 @@ public: GLuint current_fbo; GLuint default_fbo; QPaintEngine *active_engine; + QHash<QGLContextResourceBase *, void *> m_resources; QGLTextureDestroyer *texture_destroyer; bool vertexAttributeArraysEnabledState[QT_GL_VERTEX_ARRAY_TRACKED_COUNT]; @@ -429,8 +450,8 @@ public: static inline QGLExtensionFuncs& extensionFuncs(const QGLContext *ctx) { return ctx->d_ptr->group->extensionFuncs(); } #endif -#if defined(Q_WS_X11) || defined(Q_WS_MAC) || defined(Q_WS_QWS) || defined(Q_OS_SYMBIAN) - static QGLExtensionFuncs qt_extensionFuncs; +#if defined(Q_WS_X11) || defined(Q_WS_MAC) || defined(Q_WS_QWS) || defined(Q_WS_QPA) || defined(Q_OS_SYMBIAN) + static Q_OPENGL_EXPORT QGLExtensionFuncs qt_extensionFuncs; static Q_OPENGL_EXPORT QGLExtensionFuncs& extensionFuncs(const QGLContext *); #endif @@ -497,6 +518,7 @@ Q_SIGNALS: private slots: void freeTexture_slot(QGLContext *context, QPixmapData *boundPixmap, GLuint id) { + Q_UNUSED(boundPixmap); #if defined(Q_WS_X11) if (boundPixmap) { QGLContext *oldContext = const_cast<QGLContext *>(QGLContext::currentContext()); @@ -659,24 +681,131 @@ inline GLenum qt_gl_preferredTextureTarget() #endif } -// One resource per group of shared contexts. -class Q_OPENGL_EXPORT QGLContextResource +/* + Base for resources that are shared in a context group. +*/ +class Q_OPENGL_EXPORT QGLContextGroupResourceBase { public: - typedef void (*FreeFunc)(void *); - QGLContextResource(FreeFunc f); - ~QGLContextResource(); - // Set resource 'value' for 'key' and all its shared contexts. - void insert(const QGLContext *key, void *value); - // Return resource for 'key' or a shared context. - void *value(const QGLContext *key); - // Cleanup 'value' in response to a context group being destroyed. - void cleanup(const QGLContext *ctx, void *value); + QGLContextGroupResourceBase(); + virtual ~QGLContextGroupResourceBase(); + void insert(const QGLContext *context, void *value); + void *value(const QGLContext *context); + void cleanup(const QGLContext *context); + void cleanup(const QGLContext *context, void *value); + virtual void freeResource(void *value) = 0; + +protected: + QList<QGLContextGroup *> m_groups; + private: - FreeFunc free; QAtomicInt active; }; +/* + The QGLContextGroupResource template is used to manage a resource + for a group of sharing GL contexts. When the last context in the + group is destroyed, or when the QGLContextGroupResource object + itself is destroyed (implies potential context switches), the + resource will be freed. + + The class used as the template class type needs to have a + constructor with the following signature: + T(const QGLContext *); +*/ +template <class T> +class QGLContextGroupResource : public QGLContextGroupResourceBase +{ +public: + ~QGLContextGroupResource() { + for (int i = 0; i < m_groups.size(); ++i) { + const QGLContext *context = m_groups.at(i)->context(); + T *resource = reinterpret_cast<T *>(QGLContextGroupResourceBase::value(context)); + if (resource) { + QGLShareContextScope scope(context); + delete resource; + } + } + } + + T *value(const QGLContext *context) { + T *resource = reinterpret_cast<T *>(QGLContextGroupResourceBase::value(context)); + if (!resource) { + resource = new T(context); + insert(context, resource); + } + return resource; + } + +protected: + void freeResource(void *resource) { + delete reinterpret_cast<T *>(resource); + } +}; + +/* + Base for resources that are context specific. +*/ +class Q_OPENGL_EXPORT QGLContextResourceBase +{ +public: + virtual ~QGLContextResourceBase() { + for (int i = 0; i < m_contexts.size(); ++i) + m_contexts.at(i)->d_ptr->m_resources.remove(this); + } + + void insert(const QGLContext *context, void *value) { + context->d_ptr->m_resources.insert(this, value); + } + + void *value(const QGLContext *context) { + return context->d_ptr->m_resources.value(this, 0); + } + virtual void freeResource(void *value) = 0; + +protected: + QList<const QGLContext *> m_contexts; +}; + +/* + The QGLContextResource template is used to manage a resource for a + single GL context. Just before the context is destroyed (while it's + still the current context), or when the QGLContextResource object + itself is destroyed (implies potential context switches), the + resource will be freed. The class used as the template class type + needs to have a constructor with the following signature: T(const + QGLContext *); +*/ +template <class T> +class QGLContextResource : public QGLContextResourceBase +{ +public: + ~QGLContextResource() { + for (int i = 0; i < m_contexts.size(); ++i) { + const QGLContext *context = m_contexts.at(i); + T *resource = reinterpret_cast<T *>(QGLContextResourceBase::value(context)); + if (resource) { + QGLShareContextScope scope(context); + delete resource; + } + } + } + + T *value(const QGLContext *context) { + T *resource = reinterpret_cast<T *>(QGLContextResourceBase::value(context)); + if (!resource) { + resource = new T(context); + insert(context, resource); + } + return resource; + } + +protected: + void freeResource(void *resource) { + delete reinterpret_cast<T *>(resource); + } +}; + // Put a guard around a GL object identifier and its context. // When the context goes away, a shared context will be used // in its place. If there are no more shared contexts, then @@ -724,48 +853,52 @@ private: }; -// This class can be used to match GL extensions without doing any mallocs. The -// class assumes that the GL extension string ends with a space character, -// which it should do on all conformant platforms. Create the object and pass -// in a pointer to the extension string, then call match() on each extension -// that should be matched. The match() function takes the extension name -// *without* the terminating space character as input. - class QGLExtensionMatcher { public: - QGLExtensionMatcher(const char *str) - : gl_extensions(str), gl_extensions_length(qstrlen(str)) - {} + QGLExtensionMatcher(const char *str); + QGLExtensionMatcher(); - bool match(const char *str) { + bool match(const char *str) const { int str_length = qstrlen(str); - const char *extensions = gl_extensions; - int extensions_length = gl_extensions_length; - - while (1) { - // the total length that needs to be matched is the str_length + - // the space character that terminates the extension name - if (extensions_length < str_length + 1) - return false; - if (qstrncmp(extensions, str, str_length) == 0 && extensions[str_length] == ' ') - return true; - int split_pos = 0; - while (split_pos < extensions_length && extensions[split_pos] != ' ') - ++split_pos; - ++split_pos; // added for the terminating space character - extensions += split_pos; - extensions_length -= split_pos; + Q_ASSERT(str); + Q_ASSERT(str_length > 0); + Q_ASSERT(str[str_length-1] != ' '); + + for (int i = 0; i < m_offsets.size(); ++i) { + const char *extension = m_extensions.constData() + m_offsets.at(i); + if (qstrncmp(extension, str, str_length) == 0 && extension[str_length] == ' ') + return true; } return false; } private: - const char *gl_extensions; - int gl_extensions_length; + void init(const char *str); + + QByteArray m_extensions; + QVector<int> m_offsets; }; + +// this is a class that wraps a QThreadStorage object for storing +// thread local instances of the GL 1 and GL 2 paint engines + +template <class T> +class QGLEngineThreadStorage +{ +public: + QPaintEngine *engine() { + QPaintEngine *&localEngine = storage.localData(); + if (!localEngine) + localEngine = new T; + return localEngine; + } + +private: + QThreadStorage<QPaintEngine *> storage; +}; QT_END_NAMESPACE #endif // QGL_P_H |