diff options
Diffstat (limited to 'tests/auto/opengl/qgl/tst_qgl.cpp')
-rw-r--r-- | tests/auto/opengl/qgl/tst_qgl.cpp | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/tests/auto/opengl/qgl/tst_qgl.cpp b/tests/auto/opengl/qgl/tst_qgl.cpp index 0ba464a82c..56198ceb65 100644 --- a/tests/auto/opengl/qgl/tst_qgl.cpp +++ b/tests/auto/opengl/qgl/tst_qgl.cpp @@ -42,6 +42,8 @@ #include <qglcolormap.h> #include <qpaintengine.h> #include <qopenglfunctions.h> +#include <qopenglframebufferobject.h> +#include <qopenglpaintdevice.h> #include <QGraphicsView> #include <QGraphicsProxyWidget> @@ -78,6 +80,7 @@ private slots: void glWidgetRendering(); void glFBOSimpleRendering(); void glFBORendering(); + void currentFboSync(); void multipleFBOInterleavedRendering(); void glFBOUseInGLWidget(); void glPBufferRendering(); @@ -1138,6 +1141,93 @@ void tst_QGL::glFBORendering() qt_opengl_check_test_pattern(fb); } +class QOpenGLFramebufferObjectPaintDevice : public QOpenGLPaintDevice +{ +public: + QOpenGLFramebufferObjectPaintDevice(int width, int height) + : QOpenGLPaintDevice(width, height) + , m_fbo(width, height, QOpenGLFramebufferObject::CombinedDepthStencil) + { + } + + void ensureActiveTarget() + { + m_fbo.bind(); + } + + QImage toImage() const + { + return m_fbo.toImage(); + } + +private: + QOpenGLFramebufferObject m_fbo; +}; + +void tst_QGL::currentFboSync() +{ + if (!QGLFramebufferObject::hasOpenGLFramebufferObjects()) + QSKIP("QGLFramebufferObject not supported on this platform"); + +#if defined(Q_OS_QNX) + QSKIP("Reading the QGLFramebufferObject is unsupported on this platform"); +#endif + + QGLWidget glw; + glw.makeCurrent(); + + { + QGLFramebufferObject fbo1(256, 256, QGLFramebufferObject::CombinedDepthStencil); + + QOpenGLFramebufferObjectPaintDevice fbo2(256, 256); + + QImage sourceImage(256, 256, QImage::Format_ARGB32_Premultiplied); + QPainter sourcePainter(&sourceImage); + qt_opengl_draw_test_pattern(&sourcePainter, 256, 256); + + QPainter fbo1Painter(&fbo1); + + QPainter fbo2Painter(&fbo2); + fbo2Painter.drawImage(0, 0, sourceImage); + fbo2Painter.end(); + + QImage fbo2Image = fbo2.toImage(); + + fbo1Painter.drawImage(0, 0, sourceImage); + fbo1Painter.end(); + + QGLFramebufferObject::bindDefault(); + + QCOMPARE(fbo1.toImage(), fbo2Image); + } + + { + QGLFramebufferObject fbo1(512, 512, QGLFramebufferObject::CombinedDepthStencil); + + QOpenGLFramebufferObjectPaintDevice fbo2(256, 256); + + QImage sourceImage(256, 256, QImage::Format_ARGB32_Premultiplied); + QPainter sourcePainter(&sourceImage); + qt_opengl_draw_test_pattern(&sourcePainter, 256, 256); + + QPainter fbo2Painter(&fbo2); + fbo2Painter.drawImage(0, 0, sourceImage); + QImage fbo2Image1 = fbo2.toImage(); + fbo2Painter.fillRect(0, 0, 256, 256, Qt::white); + + QPainter fbo1Painter(&fbo1); + fbo1Painter.drawImage(0, 0, sourceImage); + fbo1Painter.end(); + + // check that the OpenGL paint engine now knows it needs to sync + fbo2Painter.drawImage(0, 0, sourceImage); + QImage fbo2Image2 = fbo2.toImage(); + + fbo2Painter.end(); + + QCOMPARE(fbo2Image1, fbo2Image2); + } +} // Tests multiple QPainters active on different FBOs at the same time, with // interleaving painting. Performance-wise, this is sub-optimal, but it still |