diff options
Diffstat (limited to 'src/opengl/qglframebufferobject.cpp')
| -rw-r--r-- | src/opengl/qglframebufferobject.cpp | 66 |
1 files changed, 56 insertions, 10 deletions
diff --git a/src/opengl/qglframebufferobject.cpp b/src/opengl/qglframebufferobject.cpp index d8addf6..0af8108 100644 --- a/src/opengl/qglframebufferobject.cpp +++ b/src/opengl/qglframebufferobject.cpp @@ -44,6 +44,7 @@ #include <qdebug.h> #include <private/qgl_p.h> +#include <private/qfont_p.h> #if !defined(QT_OPENGL_ES_1) #include <private/qpaintengineex_opengl2_p.h> #endif @@ -202,6 +203,38 @@ int QGLFramebufferObjectFormat::samples() const } /*! + \since 4.8 + + Enables mipmapping if \a enabled is true; otherwise disables it. + + Mipmapping is disabled by default. + + If mipmapping is enabled, additional memory will be allocated for + the mipmap levels. The mipmap levels can be updated by binding the + texture and calling glGenerateMipmap(). Mipmapping cannot be enabled + for multisampled framebuffer objects. + + \sa mipmap(), QGLFramebufferObject::texture() +*/ +void QGLFramebufferObjectFormat::setMipmap(bool enabled) +{ + detach(); + d->mipmap = enabled; +} + +/*! + \since 4.8 + + Returns true if mipmapping is enabled. + + \sa setMipmap() +*/ +bool QGLFramebufferObjectFormat::mipmap() const +{ + return d->mipmap; +} + +/*! Sets the attachment configuration of a framebuffer object to \a attachment. \sa attachment() @@ -324,6 +357,10 @@ void QGLFBOGLPaintDevice::setFBO(QGLFramebufferObject* f, fboFormat.setStencil(true); } else if (attachment == QGLFramebufferObject::Depth) { fboFormat.setDepth(true); + fboFormat.setStencil(false); + } else { + fboFormat.setDepth(false); + fboFormat.setStencil(false); } GLenum format = f->format().internalTextureFormat(); @@ -394,7 +431,8 @@ bool QGLFramebufferObjectPrivate::checkFramebufferStatus() const void QGLFramebufferObjectPrivate::init(QGLFramebufferObject *q, const QSize &sz, QGLFramebufferObject::Attachment attachment, - GLenum texture_target, GLenum internal_format, GLint samples) + GLenum texture_target, GLenum internal_format, + GLint samples, bool mipmap) { QGLContext *ctx = const_cast<QGLContext *>(QGLContext::currentContext()); fbo_guard.setContext(ctx); @@ -422,6 +460,8 @@ void QGLFramebufferObjectPrivate::init(QGLFramebufferObject *q, const QSize &sz, glBindTexture(target, texture); glTexImage2D(target, 0, internal_format, size.width(), size.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL); + if (mipmap) + glGenerateMipmap(GL_TEXTURE_2D); #ifndef QT_OPENGL_ES glTexParameteri(target, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glTexParameteri(target, GL_TEXTURE_MAG_FILTER, GL_NEAREST); @@ -442,6 +482,7 @@ void QGLFramebufferObjectPrivate::init(QGLFramebufferObject *q, const QSize &sz, color_buffer = 0; } else { + mipmap = false; GLint maxSamples; glGetIntegerv(GL_MAX_SAMPLES_EXT, &maxSamples); @@ -602,6 +643,7 @@ void QGLFramebufferObjectPrivate::init(QGLFramebufferObject *q, const QSize &sz, format.setSamples(int(samples)); format.setAttachment(fbo_attachment); format.setInternalTextureFormat(internal_format); + format.setMipmap(mipmap); } /*! @@ -674,6 +716,13 @@ void QGLFramebufferObjectPrivate::init(QGLFramebufferObject *q, const QSize &sz, as a texture, you first need to copy from it to a regular framebuffer object using QGLContext::blitFramebuffer(). + \section1 Threading + + As of Qt 4.8, it's possible to draw into a QGLFramebufferObject + using a QPainter in a separate thread. Note that OpenGL 2.0 or + OpenGL ES 2.0 is required for this to work. Also, under X11, it's + necessary to set the Qt::AA_X11InitThreads application attribute. + \sa {Framebuffer Object Example} */ @@ -766,7 +815,7 @@ QGLFramebufferObject::QGLFramebufferObject(const QSize &size, const QGLFramebuff { Q_D(QGLFramebufferObject); d->init(this, size, format.attachment(), format.textureTarget(), format.internalTextureFormat(), - format.samples()); + format.samples(), format.mipmap()); } /*! \overload @@ -780,7 +829,7 @@ QGLFramebufferObject::QGLFramebufferObject(int width, int height, const QGLFrame { Q_D(QGLFramebufferObject); d->init(this, QSize(width, height), format.attachment(), format.textureTarget(), - format.internalTextureFormat(), format.samples()); + format.internalTextureFormat(), format.samples(), format.mipmap()); } #ifdef Q_MAC_COMPAT_GL_FUNCTIONS @@ -1044,11 +1093,11 @@ QImage QGLFramebufferObject::toImage() const } #if !defined(QT_OPENGL_ES_1) -Q_GLOBAL_STATIC(QGL2PaintEngineEx, qt_buffer_2_engine) +Q_GLOBAL_STATIC(QGLEngineThreadStorage<QGL2PaintEngineEx>, qt_buffer_2_engine) #endif #ifndef QT_OPENGL_ES_2 -Q_GLOBAL_STATIC(QOpenGLPaintEngine, qt_buffer_engine) +Q_GLOBAL_STATIC(QGLEngineThreadStorage<QOpenGLPaintEngine>, qt_buffer_engine) #endif /*! \reimp */ @@ -1062,7 +1111,7 @@ QPaintEngine *QGLFramebufferObject::paintEngine() const #if !defined (QT_OPENGL_ES_2) if (qt_gl_preferGL2Engine()) { #endif - QPaintEngine *engine = qt_buffer_2_engine(); + QPaintEngine *engine = qt_buffer_2_engine()->engine(); if (engine->isActive() && engine->paintDevice() != this) { d->engine = new QGL2PaintEngineEx; return d->engine; @@ -1074,7 +1123,7 @@ QPaintEngine *QGLFramebufferObject::paintEngine() const #endif #if !defined(QT_OPENGL_ES_2) - QPaintEngine *engine = qt_buffer_engine(); + QPaintEngine *engine = qt_buffer_engine()->engine(); if (engine->isActive() && engine->paintDevice() != this) { d->engine = new QOpenGLPaintEngine; return d->engine; @@ -1171,9 +1220,6 @@ void QGLFramebufferObject::drawTexture(const QPointF &point, QMacCompatGLuint te } #endif -Q_GUI_EXPORT int qt_defaultDpiX(); -Q_GUI_EXPORT int qt_defaultDpiY(); - /*! \reimp */ int QGLFramebufferObject::metric(PaintDeviceMetric metric) const { |