diff options
| -rw-r--r-- | src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp | 29 | ||||
| -rw-r--r-- | src/opengl/qgl_p.h | 4 |
2 files changed, 30 insertions, 3 deletions
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp index 4bf5d4c..edc7c44 100644 --- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp +++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp @@ -88,8 +88,9 @@ static const GLuint QT_IMAGE_TEXTURE_UNIT = 0; //Can be the same as brush static const GLuint QT_MASK_TEXTURE_UNIT = 1; static const GLuint QT_BACKGROUND_TEXTURE_UNIT = 2; -class QGLTextureGlyphCache : public QTextureGlyphCache +class QGLTextureGlyphCache : public QObject, public QTextureGlyphCache { + Q_OBJECT public: QGLTextureGlyphCache(QGLContext *context, QFontEngineGlyphCache::Type type, const QTransform &matrix); ~QGLTextureGlyphCache(); @@ -105,6 +106,24 @@ public: inline void setPaintEnginePrivate(QGL2PaintEngineExPrivate *p) { pex = p; } + +public Q_SLOTS: + void contextDestroyed(const QGLContext *context) { + if (context == ctx) { + QList<const QGLContext *> shares = qgl_share_reg()->shares(ctx); + if (shares.isEmpty()) { + glDeleteFramebuffers(1, &m_fbo); + if (m_width || m_height) + glDeleteTextures(1, &m_texture); + } else { + // since the context holding the texture is shared, and + // about to be destroyed, we have to transfer ownership + // of the texture to one of the share contexts + ctx = const_cast<QGLContext *>(shares.at(0)); + } + } + } + private: QGLContext *ctx; @@ -126,6 +145,8 @@ QGLTextureGlyphCache::QGLTextureGlyphCache(QGLContext *context, QFontEngineGlyph , m_height(0) { glGenFramebuffers(1, &m_fbo); + connect(QGLSignalProxy::instance(), SIGNAL(aboutToDestroyContext(const QGLContext *)), + SLOT(contextDestroyed(const QGLContext *))); } QGLTextureGlyphCache::~QGLTextureGlyphCache() @@ -251,7 +272,7 @@ QGL2PaintEngineExPrivate::~QGL2PaintEngineExPrivate() void QGL2PaintEngineExPrivate::updateTextureFilter(GLenum target, GLenum wrapMode, bool smoothPixmapTransform, GLuint id) { // glActiveTexture(GL_TEXTURE0 + QT_BRUSH_TEXTURE_UNIT); //### Is it always this texture unit? - if (id != -1 && id == lastTexture) + if (id != GLuint(-1) && id == lastTexture) return; lastTexture = id; @@ -1408,7 +1429,7 @@ void QGL2PaintEngineEx::clip(const QVectorPath &path, Qt::ClipOperation op) if (state()->matrix.type() <= QTransform::TxScale) { rect = state()->matrix.mapRect(rect); - if (d->use_system_clip && rect.contains(d->systemClip.boundingRect()) + if ((d->use_system_clip && rect.contains(d->systemClip.boundingRect())) || rect.contains(QRect(0, 0, d->width, d->height))) return; } @@ -1606,3 +1627,5 @@ QOpenGL2PaintEngineState::~QOpenGL2PaintEngineState() } QT_END_NAMESPACE + +#include "qpaintengineex_opengl2.moc" diff --git a/src/opengl/qgl_p.h b/src/opengl/qgl_p.h index 85e9bd7..ac19d64 100644 --- a/src/opengl/qgl_p.h +++ b/src/opengl/qgl_p.h @@ -421,6 +421,10 @@ public: removeShare(oldContext); } + QList<const QGLContext *> shares(const QGLContext *context) { + return reg.values(context); + } + private: QGLSharingHash reg; }; |