diff options
Diffstat (limited to 'src/declarative/items/shadereffectsource.cpp')
| -rw-r--r-- | src/declarative/items/shadereffectsource.cpp | 438 |
1 files changed, 0 insertions, 438 deletions
diff --git a/src/declarative/items/shadereffectsource.cpp b/src/declarative/items/shadereffectsource.cpp deleted file mode 100644 index 7de5811da7..0000000000 --- a/src/declarative/items/shadereffectsource.cpp +++ /dev/null @@ -1,438 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtDeclarative module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the Technology Preview License Agreement accompanying -** this package. -** -** GNU Lesser General Public License Usage -** Alternatively, 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. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "shadereffectsource.h" - -#include "qsgitem_p.h" -#include "qsgcanvas_p.h" -#include "adaptationlayer.h" - -#include "qglframebufferobject.h" -#include "qmath.h" -#include "qsgtexture_p.h" - -QT_BEGIN_NAMESPACE - -DEFINE_BOOL_CONFIG_OPTION(qmlFboOverlay, QML_FBO_OVERLAY) - -ShaderEffectTextureProvider::ShaderEffectTextureProvider(QObject *parent) - : QSGTextureProvider(parent) - , m_item(0) - , m_format(GL_RGBA) - , m_renderer(0) - , m_fbo(0) - , m_multisampledFbo(0) -#ifdef QSG_DEBUG_FBO_OVERLAY - , m_debugOverlay(0) -#endif - , m_live(true) - , m_dirtyTexture(true) - , m_multisamplingSupportChecked(false) - , m_multisampling(false) -{ -} - -ShaderEffectTextureProvider::~ShaderEffectTextureProvider() -{ - delete m_renderer; - delete m_fbo; - delete m_multisampledFbo; -#ifdef QSG_DEBUG_FBO_OVERLAY - delete m_debugOverlay; -#endif -} - -void ShaderEffectTextureProvider::updateTexture() -{ - if (m_dirtyTexture) - grab(); -} - -QSGTextureRef ShaderEffectTextureProvider::texture() -{ - return m_texture; -} - -void ShaderEffectTextureProvider::setItem(Node *item) -{ - if (item == m_item) - return; - m_item = item; - markDirtyTexture(); -} - -void ShaderEffectTextureProvider::setRect(const QRectF &rect) -{ - if (rect == m_rect) - return; - m_rect = rect; - markDirtyTexture(); -} - -void ShaderEffectTextureProvider::setSize(const QSize &size) -{ - if (size == m_size) - return; - m_size = size; - markDirtyTexture(); -} - -void ShaderEffectTextureProvider::setFormat(GLenum format) -{ - if (format == m_format) - return; - m_format = format; - markDirtyTexture(); -} - -void ShaderEffectTextureProvider::setLive(bool live) -{ - if (live == m_live) - return; - m_live = live; - markDirtyTexture(); -} - -void ShaderEffectTextureProvider::markDirtyTexture() -{ - if (m_live) { - m_dirtyTexture = true; - emit textureChanged(); - } -} - -void ShaderEffectTextureProvider::grab() -{ - Q_ASSERT(m_item); - Node *root = m_item; - while (root->childCount() && root->type() != Node::RootNodeType) - root = root->childAtIndex(0); - if (root->type() != Node::RootNodeType) - return; - - if (m_size.isEmpty()) { - m_texture = QSGTextureRef(); - delete m_fbo; - delete m_multisampledFbo; - m_multisampledFbo = m_fbo = 0; - return; - } - - if (!m_renderer) { - m_renderer = QSGContext::current->createRenderer(); - connect(m_renderer, SIGNAL(sceneGraphChanged()), this, SLOT(markDirtyTexture())); - } - m_renderer->setRootNode(static_cast<RootNode *>(root)); - - bool mipmap = m_mipmap != None; - if (!m_fbo || m_fbo->size() != m_size || m_fbo->format().internalTextureFormat() != m_format - || (!m_fbo->format().mipmap() && mipmap)) - { - if (!m_multisamplingSupportChecked) { - QList<QByteArray> extensions = QByteArray((const char *)glGetString(GL_EXTENSIONS)).split(' '); - m_multisampling = extensions.contains("GL_EXT_framebuffer_multisample") - && extensions.contains("GL_EXT_framebuffer_blit"); - m_multisamplingSupportChecked = true; - } - if (m_multisampling) { - delete m_fbo; - delete m_multisampledFbo; - QGLFramebufferObjectFormat format; - - format.setAttachment(QGLFramebufferObject::CombinedDepthStencil); - format.setInternalTextureFormat(m_format); - format.setSamples(8); - m_multisampledFbo = new QGLFramebufferObject(m_size, format); - - format.setAttachment(QGLFramebufferObject::NoAttachment); - format.setMipmap(m_mipmap); - format.setSamples(0); - m_fbo = new QGLFramebufferObject(m_size, format); - - QSGPlainTexture *tex = new QSGPlainTexture; - tex->setTextureSize(QSize(m_fbo->size())); - tex->setTextureId(m_fbo->texture()); - tex->setOwnsTexture(false); - tex->setHasMipmaps(mipmap); - m_texture = QSGTextureRef(tex); - } else { - delete m_fbo; - QGLFramebufferObjectFormat format; - format.setAttachment(QGLFramebufferObject::CombinedDepthStencil); - format.setInternalTextureFormat(m_format); - format.setMipmap(m_mipmap); - m_fbo = new QGLFramebufferObject(m_size, format); - QSGPlainTexture *tex = new QSGPlainTexture; - tex->setTextureSize(QSize(m_fbo->size())); - tex->setTextureId(m_fbo->texture()); - tex->setOwnsTexture(false); - tex->setHasMipmaps(mipmap); - m_texture = QSGTextureRef(tex); - } - } - - // Render texture. - Node::DirtyFlags dirty = root->dirtyFlags(); - root->markDirty(Node::DirtyNodeAdded); // Force matrix and clip update. - m_renderer->nodeChanged(root, Node::DirtyNodeAdded); // Force render list update. - -#ifdef QSG_DEBUG_FBO_OVERLAY - if (qmlFboOverlay()) { - if (!m_debugOverlay) - m_debugOverlay = QSGContext::current->createRectangleNode(); - m_debugOverlay->setRect(QRectF(0, 0, m_size.width(), m_size.height())); - m_debugOverlay->setColor(QColor(0xff, 0x00, 0x80, 0x40)); - m_debugOverlay->setPenColor(QColor()); - m_debugOverlay->setPenWidth(0); - m_debugOverlay->setRadius(0); - m_debugOverlay->update(); - root->appendChildNode(m_debugOverlay); - } -#endif - - m_dirtyTexture = false; - - const QGLContext *ctx = QSGContext::current->glContext(); - m_renderer->setDeviceRect(m_size); - m_renderer->setViewportRect(m_size); - QRectF mirrored(m_rect.left(), m_rect.bottom(), m_rect.width(), -m_rect.height()); - m_renderer->setProjectMatrixToRect(mirrored); - m_renderer->setClearColor(Qt::transparent); - - if (m_multisampling) { - m_renderer->renderScene(BindableFbo(const_cast<QGLContext *>(ctx), m_multisampledFbo)); - QRect r(0, 0, m_fbo->width(), m_fbo->height()); - QGLFramebufferObject::blitFramebuffer(m_fbo, r, m_multisampledFbo, r); - } else { - m_renderer->renderScene(BindableFbo(const_cast<QGLContext *>(ctx), m_fbo)); - } - - if (mipmap) { - glBindTexture(GL_TEXTURE_2D, m_texture->textureId()); - glGenerateMipmap(GL_TEXTURE_2D); - } - - root->markDirty(dirty | Node::DirtyNodeAdded); // Force matrix, clip and render list update. - -#ifdef QSG_DEBUG_FBO_OVERLAY - if (qmlFboOverlay()) - root->removeChildNode(m_debugOverlay); -#endif -} - - -ShaderEffectSource::ShaderEffectSource(QSGItem *parent) - : TextureItem(parent) - , m_sourceItem(0) - , m_textureSize(0, 0) - , m_format(RGBA) - , m_live(true) - , m_hideSource(false) - , m_mipmap(false) -{ - setTextureProvider(new ShaderEffectTextureProvider(this), true); -} - -ShaderEffectSource::~ShaderEffectSource() -{ - if (m_sourceItem) - QSGItemPrivate::get(m_sourceItem)->derefFromEffectItem(m_hideSource); -} - -QSGItem *ShaderEffectSource::sourceItem() const -{ - return m_sourceItem; -} - -void ShaderEffectSource::setSourceItem(QSGItem *item) -{ - if (item == m_sourceItem) - return; - if (m_sourceItem) - QSGItemPrivate::get(m_sourceItem)->derefFromEffectItem(m_hideSource); - m_sourceItem = item; - if (m_sourceItem) { - // TODO: Find better solution. - // 'm_sourceItem' needs a canvas to get a scenegraph node. - // The easiest way to make sure it gets a canvas is to - // make it a part of the same item tree as 'this'. - if (m_sourceItem->parentItem() == 0) { - m_sourceItem->setParentItem(this); - m_sourceItem->setVisible(false); - } - QSGItemPrivate::get(m_sourceItem)->refFromEffectItem(m_hideSource); - } - update(); - emit sourceItemChanged(); -} - -QRectF ShaderEffectSource::sourceRect() const -{ - return m_sourceRect; -} - -void ShaderEffectSource::setSourceRect(const QRectF &rect) -{ - if (rect == m_sourceRect) - return; - m_sourceRect = rect; - update(); - emit sourceRectChanged(); -} - -QSize ShaderEffectSource::textureSize() const -{ - return m_textureSize; -} - -void ShaderEffectSource::setTextureSize(const QSize &size) -{ - if (size == m_textureSize) - return; - m_textureSize = size; - update(); - emit textureSizeChanged(); -} - -ShaderEffectSource::Format ShaderEffectSource::format() const -{ - return m_format; -} - -void ShaderEffectSource::setFormat(ShaderEffectSource::Format format) -{ - if (format == m_format) - return; - m_format = format; - update(); - emit formatChanged(); -} - -bool ShaderEffectSource::live() const -{ - return m_live; -} - -void ShaderEffectSource::setLive(bool live) -{ - if (live == m_live) - return; - m_live = live; - update(); - emit liveChanged(); -} - -bool ShaderEffectSource::hideSource() const -{ - return m_hideSource; -} - -void ShaderEffectSource::setHideSource(bool hide) -{ - if (hide == m_hideSource) - return; - if (m_sourceItem) { - QSGItemPrivate::get(m_sourceItem)->refFromEffectItem(hide); - QSGItemPrivate::get(m_sourceItem)->derefFromEffectItem(m_hideSource); - } - m_hideSource = hide; - update(); - emit hideSourceChanged(); -} - -bool ShaderEffectSource::mipmap() const -{ - return m_mipmap; -} - -void ShaderEffectSource::setMipmap(bool enabled) -{ - if (enabled == m_mipmap) - return; - m_mipmap = enabled; - update(); - emit mipmapChanged(); -} - -void ShaderEffectSource::grab() -{ - if (!m_sourceItem) - return; - QSGCanvas *canvas = m_sourceItem->canvas(); - if (!canvas) - return; - QSGCanvasPrivate::get(canvas)->updateDirtyNodes(); - QGLContext *glctx = const_cast<QGLContext *>(canvas->context()); - glctx->makeCurrent(); - static_cast<ShaderEffectTextureProvider *>(textureProvider())->grab(); -} - -Node *ShaderEffectSource::updatePaintNode(Node *oldNode, UpdatePaintNodeData *data) -{ - if (!m_sourceItem) { - delete oldNode; - return 0; - } - - ShaderEffectTextureProvider *tp = static_cast<ShaderEffectTextureProvider *>(textureProvider()); - tp->setItem(QSGItemPrivate::get(m_sourceItem)->itemNode()); - QRectF sourceRect = m_sourceRect.isEmpty() - ? QRectF(0, 0, m_sourceItem->width(), m_sourceItem->height()) - : m_sourceRect; - tp->setRect(sourceRect); - QSize textureSize = m_textureSize.isEmpty() - ? QSize(qCeil(sourceRect.width()), qCeil(sourceRect.height())) - : m_textureSize; - tp->setSize(textureSize); - tp->setLive(m_live); - tp->setFormat(GLenum(m_format)); - - // If enabling mipmapping, the texture must be updated. - if (m_mipmap && tp->mipmap() == QSGTextureProvider::None) - tp->markDirtyTexture(); - QSGTextureProvider::Filtering filtering = QSGItemPrivate::get(this)->smooth - ? QSGTextureProvider::Linear - : QSGTextureProvider::Nearest; - tp->setMipmap(m_mipmap ? filtering : QSGTextureProvider::None); - return TextureItem::updatePaintNode(oldNode, data); -} - -QT_END_NAMESPACE |