| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** |
| ** This file is part of the QtOpenGL module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
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| ** GNU Lesser General Public License Usage |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
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| |
| #include "qglcustomshaderstage_p.h" |
| #include "qglengineshadermanager_p.h" |
| #include "qpaintengineex_opengl2_p.h" |
| #include <private/qpainter_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QGLCustomShaderStagePrivate |
| { |
| public: |
| QGLCustomShaderStagePrivate() : |
| m_manager(0) {} |
| |
| QPointer<QGLEngineShaderManager> m_manager; |
| QByteArray m_source; |
| }; |
| |
| |
| |
| |
| QGLCustomShaderStage::QGLCustomShaderStage() |
| : d_ptr(new QGLCustomShaderStagePrivate) |
| { |
| } |
| |
| QGLCustomShaderStage::~QGLCustomShaderStage() |
| { |
| Q_D(QGLCustomShaderStage); |
| if (d->m_manager) { |
| d->m_manager->removeCustomStage(); |
| d->m_manager->sharedShaders->cleanupCustomStage(this); |
| } |
| delete d_ptr; |
| } |
| |
| void QGLCustomShaderStage::setUniformsDirty() |
| { |
| Q_D(QGLCustomShaderStage); |
| if (d->m_manager) |
| d->m_manager->setDirty(); // ### Probably a bit overkill! |
| } |
| |
| bool QGLCustomShaderStage::setOnPainter(QPainter* p) |
| { |
| Q_D(QGLCustomShaderStage); |
| if (p->paintEngine()->type() != QPaintEngine::OpenGL2) { |
| qWarning("QGLCustomShaderStage::setOnPainter() - paint engine not OpenGL2"); |
| return false; |
| } |
| if (d->m_manager) |
| qWarning("Custom shader is already set on a painter"); |
| |
| QGL2PaintEngineEx *engine = static_cast<QGL2PaintEngineEx*>(p->paintEngine()); |
| d->m_manager = QGL2PaintEngineExPrivate::shaderManagerForEngine(engine); |
| Q_ASSERT(d->m_manager); |
| |
| d->m_manager->setCustomStage(this); |
| return true; |
| } |
| |
| void QGLCustomShaderStage::removeFromPainter(QPainter* p) |
| { |
| Q_D(QGLCustomShaderStage); |
| if (p->paintEngine()->type() != QPaintEngine::OpenGL2) |
| return; |
| |
| QGL2PaintEngineEx *engine = static_cast<QGL2PaintEngineEx*>(p->paintEngine()); |
| d->m_manager = QGL2PaintEngineExPrivate::shaderManagerForEngine(engine); |
| Q_ASSERT(d->m_manager); |
| |
| // Just set the stage to null, don't call removeCustomStage(). |
| // This should leave the program in a compiled/linked state |
| // if the next custom shader stage is this one again. |
| d->m_manager->setCustomStage(0); |
| d->m_manager = 0; |
| } |
| |
| QByteArray QGLCustomShaderStage::source() const |
| { |
| Q_D(const QGLCustomShaderStage); |
| return d->m_source; |
| } |
| |
| // Called by the shader manager if another custom shader is attached or |
| // the manager is deleted |
| void QGLCustomShaderStage::setInactive() |
| { |
| Q_D(QGLCustomShaderStage); |
| d->m_manager = 0; |
| } |
| |
| void QGLCustomShaderStage::setSource(const QByteArray& s) |
| { |
| Q_D(QGLCustomShaderStage); |
| d->m_source = s; |
| } |
| |
| QT_END_NAMESPACE |