104 lines
2.8 KiB
C++
104 lines
2.8 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
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#include "qopenglcustomshaderstage_p.h"
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#include "qopenglengineshadermanager_p.h"
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#include "qopenglpaintengine_p.h"
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#include <private/qpainter_p.h>
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#include <QtCore/qpointer.h>
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QT_BEGIN_NAMESPACE
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class QOpenGLCustomShaderStagePrivate
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{
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public:
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QOpenGLCustomShaderStagePrivate() :
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m_manager(nullptr) {}
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QPointer<QOpenGLEngineShaderManager> m_manager;
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QByteArray m_source;
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};
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QOpenGLCustomShaderStage::QOpenGLCustomShaderStage()
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: d_ptr(new QOpenGLCustomShaderStagePrivate)
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{
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}
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QOpenGLCustomShaderStage::~QOpenGLCustomShaderStage()
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{
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Q_D(QOpenGLCustomShaderStage);
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if (d->m_manager) {
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d->m_manager->removeCustomStage();
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d->m_manager->sharedShaders->cleanupCustomStage(this);
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}
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delete d_ptr;
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}
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void QOpenGLCustomShaderStage::setUniformsDirty()
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{
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Q_D(QOpenGLCustomShaderStage);
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if (d->m_manager)
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d->m_manager->setDirty(); // ### Probably a bit overkill!
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}
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bool QOpenGLCustomShaderStage::setOnPainter(QPainter* p)
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{
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Q_D(QOpenGLCustomShaderStage);
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if (p->paintEngine()->type() != QPaintEngine::OpenGL2) {
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qWarning("QOpenGLCustomShaderStage::setOnPainter() - paint engine not OpenGL2");
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return false;
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}
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if (d->m_manager)
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qWarning("Custom shader is already set on a painter");
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QOpenGL2PaintEngineEx *engine = static_cast<QOpenGL2PaintEngineEx*>(p->paintEngine());
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d->m_manager = QOpenGL2PaintEngineExPrivate::shaderManagerForEngine(engine);
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Q_ASSERT(d->m_manager);
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d->m_manager->setCustomStage(this);
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return true;
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}
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void QOpenGLCustomShaderStage::removeFromPainter(QPainter* p)
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{
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Q_D(QOpenGLCustomShaderStage);
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if (p->paintEngine()->type() != QPaintEngine::OpenGL2)
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return;
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QOpenGL2PaintEngineEx *engine = static_cast<QOpenGL2PaintEngineEx*>(p->paintEngine());
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d->m_manager = QOpenGL2PaintEngineExPrivate::shaderManagerForEngine(engine);
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Q_ASSERT(d->m_manager);
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// Just set the stage to null, don't call removeCustomStage().
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// This should leave the program in a compiled/linked state
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// if the next custom shader stage is this one again.
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d->m_manager->setCustomStage(nullptr);
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d->m_manager = nullptr;
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}
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QByteArray QOpenGLCustomShaderStage::source() const
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{
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Q_D(const QOpenGLCustomShaderStage);
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return d->m_source;
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}
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// Called by the shader manager if another custom shader is attached or
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// the manager is deleted
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void QOpenGLCustomShaderStage::setInactive()
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{
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Q_D(QOpenGLCustomShaderStage);
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d->m_manager = nullptr;
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}
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void QOpenGLCustomShaderStage::setSource(const QByteArray& s)
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{
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Q_D(QOpenGLCustomShaderStage);
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d->m_source = s;
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}
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QT_END_NAMESPACE
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