diff options
author | Samuel Rødal <samuel.rodal@nokia.com> | 2011-08-22 10:49:28 +0200 |
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committer | Samuel Rødal <samuel.rodal@nokia.com> | 2011-08-29 10:25:24 +0200 |
commit | 6e28e8441b698c3397c2c78125c877f2e9867cb1 (patch) | |
tree | 1e3ad0e43cb775854835817cd04bdc8b5e047e15 /src/gui/opengl/qopenglcustomshaderstage.cpp | |
parent | aaa4a26f82f99fa8724841eba91bad029306e0ce (diff) |
Copy core GL functionality to QtGui with QGL -> QOpenGL naming.
Change-Id: Ibc989afa4a30dd184d41d1a1cd89f97196e48855
Reviewed-on: http://codereview.qt.nokia.com/3710
Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>
Diffstat (limited to 'src/gui/opengl/qopenglcustomshaderstage.cpp')
-rw-r--r-- | src/gui/opengl/qopenglcustomshaderstage.cpp | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/src/gui/opengl/qopenglcustomshaderstage.cpp b/src/gui/opengl/qopenglcustomshaderstage.cpp new file mode 100644 index 0000000000..cbbf318249 --- /dev/null +++ b/src/gui/opengl/qopenglcustomshaderstage.cpp @@ -0,0 +1,138 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qopenglcustomshaderstage_p.h" +#include "qopenglengineshadermanager_p.h" +#include "qpaintengineex_opengl2_p.h" +#include <private/qpainter_p.h> + +QT_BEGIN_NAMESPACE + +class QOpenGLCustomShaderStagePrivate +{ +public: + QOpenGLCustomShaderStagePrivate() : + m_manager(0) {} + + QPointer<QOpenGLEngineShaderManager> m_manager; + QByteArray m_source; +}; + + + + +QOpenGLCustomShaderStage::QOpenGLCustomShaderStage() + : d_ptr(new QOpenGLCustomShaderStagePrivate) +{ +} + +QOpenGLCustomShaderStage::~QOpenGLCustomShaderStage() +{ + Q_D(QOpenGLCustomShaderStage); + if (d->m_manager) { + d->m_manager->removeCustomStage(); + d->m_manager->sharedShaders->cleanupCustomStage(this); + } +} + +void QOpenGLCustomShaderStage::setUniformsDirty() +{ + Q_D(QOpenGLCustomShaderStage); + if (d->m_manager) + d->m_manager->setDirty(); // ### Probably a bit overkill! +} + +bool QOpenGLCustomShaderStage::setOnPainter(QPainter* p) +{ + Q_D(QOpenGLCustomShaderStage); + if (p->paintEngine()->type() != QPaintEngine::OpenGL2) { + qWarning("QOpenGLCustomShaderStage::setOnPainter() - paint engine not OpenGL2"); + return false; + } + if (d->m_manager) + qWarning("Custom shader is already set on a painter"); + + QOpenGL2PaintEngineEx *engine = static_cast<QOpenGL2PaintEngineEx*>(p->paintEngine()); + d->m_manager = QOpenGL2PaintEngineExPrivate::shaderManagerForEngine(engine); + Q_ASSERT(d->m_manager); + + d->m_manager->setCustomStage(this); + return true; +} + +void QOpenGLCustomShaderStage::removeFromPainter(QPainter* p) +{ + Q_D(QOpenGLCustomShaderStage); + if (p->paintEngine()->type() != QPaintEngine::OpenGL2) + return; + + QOpenGL2PaintEngineEx *engine = static_cast<QOpenGL2PaintEngineEx*>(p->paintEngine()); + d->m_manager = QOpenGL2PaintEngineExPrivate::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 QOpenGLCustomShaderStage::source() const +{ + Q_D(const QOpenGLCustomShaderStage); + return d->m_source; +} + +// Called by the shader manager if another custom shader is attached or +// the manager is deleted +void QOpenGLCustomShaderStage::setInactive() +{ + Q_D(QOpenGLCustomShaderStage); + d->m_manager = 0; +} + +void QOpenGLCustomShaderStage::setSource(const QByteArray& s) +{ + Q_D(QOpenGLCustomShaderStage); + d->m_source = s; +} + +QT_END_NAMESPACE |