diff options
author | Laszlo Agocs <laszlo.agocs@qt.io> | 2017-02-17 09:47:49 +0100 |
---|---|---|
committer | Laszlo Agocs <laszlo.agocs@qt.io> | 2017-02-23 13:19:37 +0000 |
commit | 48c31733383d14447d1c383cefca9ca40daa6a87 (patch) | |
tree | e37b14b0ee3bfb841a99baf5c503db8b150a3df9 /src/quick/scenegraph | |
parent | 0abdf6db0ee56069407953be2a9e690348a03fd1 (diff) |
Add samples property for Item.layer and ShaderEffectSource
[ChangeLog][Qt Quick] Added the properties ShaderEffectSource.samples
and Item.layer.samples to allow requesting MSAA rendering of an item
subtree, without enabling multisampling for the entire scene.
Task-number: QTBUG-58945
Change-Id: I9102cfabba10d4dc1e7ad2aa0b258ada6d9a5a47
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
Diffstat (limited to 'src/quick/scenegraph')
-rw-r--r-- | src/quick/scenegraph/adaptations/software/qsgsoftwarelayer_p.h | 1 | ||||
-rw-r--r-- | src/quick/scenegraph/qsgadaptationlayer_p.h | 1 | ||||
-rw-r--r-- | src/quick/scenegraph/qsgdefaultlayer.cpp | 20 | ||||
-rw-r--r-- | src/quick/scenegraph/qsgdefaultlayer_p.h | 4 |
4 files changed, 21 insertions, 5 deletions
diff --git a/src/quick/scenegraph/adaptations/software/qsgsoftwarelayer_p.h b/src/quick/scenegraph/adaptations/software/qsgsoftwarelayer_p.h index d3f13e40b1..9f5a22e66f 100644 --- a/src/quick/scenegraph/adaptations/software/qsgsoftwarelayer_p.h +++ b/src/quick/scenegraph/adaptations/software/qsgsoftwarelayer_p.h @@ -93,6 +93,7 @@ public: void setDevicePixelRatio(qreal ratio) override; void setMirrorHorizontal(bool mirror) override; void setMirrorVertical(bool mirror) override; + void setSamples(int) override { } public slots: void markDirtyTexture() override; diff --git a/src/quick/scenegraph/qsgadaptationlayer_p.h b/src/quick/scenegraph/qsgadaptationlayer_p.h index 03a1f7f281..a8e35b1ac1 100644 --- a/src/quick/scenegraph/qsgadaptationlayer_p.h +++ b/src/quick/scenegraph/qsgadaptationlayer_p.h @@ -209,6 +209,7 @@ public: virtual void setDevicePixelRatio(qreal ratio) = 0; virtual void setMirrorHorizontal(bool mirror) = 0; virtual void setMirrorVertical(bool mirror) = 0; + virtual void setSamples(int samples) = 0; Q_SLOT virtual void markDirtyTexture() = 0; Q_SLOT virtual void invalidated() = 0; diff --git a/src/quick/scenegraph/qsgdefaultlayer.cpp b/src/quick/scenegraph/qsgdefaultlayer.cpp index ad5b57ff83..fc8040e67b 100644 --- a/src/quick/scenegraph/qsgdefaultlayer.cpp +++ b/src/quick/scenegraph/qsgdefaultlayer.cpp @@ -99,6 +99,7 @@ QSGDefaultLayer::QSGDefaultLayer(QSGRenderContext *context) #ifdef QSG_DEBUG_FBO_OVERLAY , m_debugOverlay(0) #endif + , m_samples(0) , m_mipmap(false) , m_live(true) , m_recursive(false) @@ -313,11 +314,20 @@ void QSGDefaultLayer::grab() QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); bool deleteFboLater = false; - if (!m_fbo || m_fbo->size() != m_size || m_fbo->format().internalTextureFormat() != m_format - || (!m_fbo->format().mipmap() && m_mipmap)) - { + + int effectiveSamples = m_samples; + // By default m_samples is 0. Fall back to the context's setting in this case. + if (effectiveSamples == 0) + effectiveSamples = m_context->openglContext()->format().samples(); + + const bool needsNewFbo = !m_fbo || m_fbo->size() != m_size || m_fbo->format().internalTextureFormat() != m_format; + const bool mipmapGotEnabled = m_fbo && !m_fbo->format().mipmap() && m_mipmap; + const bool msaaGotEnabled = effectiveSamples > 1 && (!m_secondaryFbo || m_secondaryFbo->format().samples() != effectiveSamples); + const bool msaaGotDisabled = effectiveSamples <= 1 && m_secondaryFbo; + + if (needsNewFbo || mipmapGotEnabled || msaaGotEnabled || msaaGotDisabled) { if (!m_multisamplingChecked) { - if (m_context->openglContext()->format().samples() <= 1) { + if (effectiveSamples <= 1) { m_multisampling = false; } else { const QSet<QByteArray> extensions = m_context->openglContext()->extensions(); @@ -333,7 +343,7 @@ void QSGDefaultLayer::grab() QOpenGLFramebufferObjectFormat format; format.setInternalTextureFormat(m_format); - format.setSamples(m_context->openglContext()->format().samples()); + format.setSamples(effectiveSamples); m_secondaryFbo = new QOpenGLFramebufferObject(m_size, format); m_depthStencilBuffer = m_context->depthStencilBufferForFbo(m_secondaryFbo); } else { diff --git a/src/quick/scenegraph/qsgdefaultlayer_p.h b/src/quick/scenegraph/qsgdefaultlayer_p.h index ae39994096..7b09293095 100644 --- a/src/quick/scenegraph/qsgdefaultlayer_p.h +++ b/src/quick/scenegraph/qsgdefaultlayer_p.h @@ -113,6 +113,9 @@ public: QRectF normalizedTextureSubRect() const Q_DECL_OVERRIDE; + int samples() const { return m_samples; } + void setSamples(int samples) Q_DECL_OVERRIDE { m_samples = samples; } + public Q_SLOTS: void markDirtyTexture() Q_DECL_OVERRIDE; void invalidated() Q_DECL_OVERRIDE; @@ -138,6 +141,7 @@ private: #endif QSGDefaultRenderContext *m_context; + int m_samples; uint m_mipmap : 1; uint m_live : 1; |