diff options
Diffstat (limited to 'src/quick/items/qquickshadereffect.cpp')
| -rw-r--r-- | src/quick/items/qquickshadereffect.cpp | 815 |
1 files changed, 34 insertions, 781 deletions
diff --git a/src/quick/items/qquickshadereffect.cpp b/src/quick/items/qquickshadereffect.cpp index a2c2ebb380..e604e80d96 100644 --- a/src/quick/items/qquickshadereffect.cpp +++ b/src/quick/items/qquickshadereffect.cpp @@ -38,493 +38,9 @@ ****************************************************************************/ #include <private/qquickshadereffect_p.h> -#include <private/qquickshadereffectnode_p.h> - -#include <QtQuick/qsgmaterial.h> -#include <QtQuick/private/qsgshadersourcebuilder_p.h> -#include "qquickitem_p.h" - -#include <QtQuick/private/qsgcontext_p.h> -#include <QtQuick/qsgtextureprovider.h> -#include "qquickwindow.h" - -#include "qquickimage_p.h" -#include "qquickshadereffectsource_p.h" -#include "qquickshadereffectmesh_p.h" - -#include <QtCore/qsignalmapper.h> QT_BEGIN_NAMESPACE -namespace { - - enum VariableQualifier { - AttributeQualifier, - UniformQualifier - }; - - inline bool qt_isalpha(char c) - { - char ch = c | 0x20; - return (ch >= 'a' && ch <= 'z') || c == '_'; - } - - inline bool qt_isalnum(char c) - { - return qt_isalpha(c) || (c >= '0' && c <= '9'); - } - - inline bool qt_isspace(char c) - { - return c == ' ' || (c >= 0x09 && c <= 0x0d); - } - - // Returns -1 if not found, returns index to first character after the name if found. - int qt_search_for_variable(const char *s, int length, int index, VariableQualifier &decl, - int &typeIndex, int &typeLength, - int &nameIndex, int &nameLength, - QQuickShaderEffectCommon::Key::ShaderType shaderType) - { - enum Identifier { - QualifierIdentifier, // Base state - PrecisionIdentifier, - TypeIdentifier, - NameIdentifier - }; - Identifier expected = QualifierIdentifier; - bool compilerDirectiveExpected = index == 0; - - while (index < length) { - // Skip whitespace. - while (qt_isspace(s[index])) { - compilerDirectiveExpected |= s[index] == '\n'; - ++index; - } - - if (qt_isalpha(s[index])) { - // Read identifier. - int idIndex = index; - ++index; - while (qt_isalnum(s[index])) - ++index; - int idLength = index - idIndex; - - const int attrLen = sizeof("attribute") - 1; - const int inLen = sizeof("in") - 1; - const int uniLen = sizeof("uniform") - 1; - const int loLen = sizeof("lowp") - 1; - const int medLen = sizeof("mediump") - 1; - const int hiLen = sizeof("highp") - 1; - - switch (expected) { - case QualifierIdentifier: - if (idLength == attrLen && qstrncmp("attribute", s + idIndex, attrLen) == 0) { - decl = AttributeQualifier; - expected = PrecisionIdentifier; - } else if (shaderType == QQuickShaderEffectCommon::Key::VertexShader - && idLength == inLen && qstrncmp("in", s + idIndex, inLen) == 0) { - decl = AttributeQualifier; - expected = PrecisionIdentifier; - } else if (idLength == uniLen && qstrncmp("uniform", s + idIndex, uniLen) == 0) { - decl = UniformQualifier; - expected = PrecisionIdentifier; - } - break; - case PrecisionIdentifier: - if ((idLength == loLen && qstrncmp("lowp", s + idIndex, loLen) == 0) - || (idLength == medLen && qstrncmp("mediump", s + idIndex, medLen) == 0) - || (idLength == hiLen && qstrncmp("highp", s + idIndex, hiLen) == 0)) - { - expected = TypeIdentifier; - break; - } - // Fall through. - case TypeIdentifier: - typeIndex = idIndex; - typeLength = idLength; - expected = NameIdentifier; - break; - case NameIdentifier: - nameIndex = idIndex; - nameLength = idLength; - return index; // Attribute or uniform declaration found. Return result. - default: - break; - } - } else if (s[index] == '#' && compilerDirectiveExpected) { - // Skip compiler directives. - ++index; - while (index < length && (s[index] != '\n' || s[index - 1] == '\\')) - ++index; - } else if (s[index] == '/' && s[index + 1] == '/') { - // Skip comments. - index += 2; - while (index < length && s[index] != '\n') - ++index; - } else if (s[index] == '/' && s[index + 1] == '*') { - // Skip comments. - index += 2; - while (index < length && (s[index] != '*' || s[index + 1] != '/')) - ++index; - if (index < length) - index += 2; // Skip star-slash. - } else { - expected = QualifierIdentifier; - ++index; - } - compilerDirectiveExpected = false; - } - return -1; - } -} - - - -QQuickShaderEffectCommon::~QQuickShaderEffectCommon() -{ - for (int shaderType = 0; shaderType < Key::ShaderTypeCount; ++shaderType) - qDeleteAll(signalMappers[shaderType]); -} - -void QQuickShaderEffectCommon::disconnectPropertySignals(QQuickItem *item, Key::ShaderType shaderType) -{ - for (int i = 0; i < uniformData[shaderType].size(); ++i) { - if (signalMappers[shaderType].at(i) == 0) - continue; - const UniformData &d = uniformData[shaderType].at(i); - QSignalMapper *mapper = signalMappers[shaderType].at(i); - QObject::disconnect(item, 0, mapper, SLOT(map())); - QObject::disconnect(mapper, SIGNAL(mapped(int)), item, SLOT(propertyChanged(int))); - if (d.specialType == UniformData::Sampler) { - QQuickItem *source = qobject_cast<QQuickItem *>(qvariant_cast<QObject *>(d.value)); - if (source) { - if (item->window()) - QQuickItemPrivate::get(source)->derefWindow(); - QObject::disconnect(source, SIGNAL(destroyed(QObject*)), item, SLOT(sourceDestroyed(QObject*))); - } - } - } -} - -void QQuickShaderEffectCommon::connectPropertySignals(QQuickItem *item, Key::ShaderType shaderType) -{ - for (int i = 0; i < uniformData[shaderType].size(); ++i) { - if (signalMappers[shaderType].at(i) == 0) - continue; - const UniformData &d = uniformData[shaderType].at(i); - int pi = item->metaObject()->indexOfProperty(d.name.constData()); - if (pi >= 0) { - QMetaProperty mp = item->metaObject()->property(pi); - if (!mp.hasNotifySignal()) - qWarning("QQuickShaderEffect: property '%s' does not have notification method!", d.name.constData()); - const QByteArray signalName = '2' + mp.notifySignal().methodSignature(); - QSignalMapper *mapper = signalMappers[shaderType].at(i); - QObject::connect(item, signalName, mapper, SLOT(map())); - QObject::connect(mapper, SIGNAL(mapped(int)), item, SLOT(propertyChanged(int))); - } else { - // If the source is set via a dynamic property, like the layer is, then we need this - // check to disable the warning. - if (!item->property(d.name.constData()).isValid()) - qWarning("QQuickShaderEffect: '%s' does not have a matching property!", d.name.constData()); - } - - if (d.specialType == UniformData::Sampler) { - QQuickItem *source = qobject_cast<QQuickItem *>(qvariant_cast<QObject *>(d.value)); - if (source) { - if (item->window()) - QQuickItemPrivate::get(source)->refWindow(item->window()); - QObject::connect(source, SIGNAL(destroyed(QObject*)), item, SLOT(sourceDestroyed(QObject*))); - } - } - } -} - -void QQuickShaderEffectCommon::updateParseLog(bool ignoreAttributes) -{ - parseLog.clear(); - if (!ignoreAttributes) { - if (!attributes.contains(qtPositionAttributeName())) { - parseLog += QLatin1String("Warning: Missing reference to \'"); - parseLog += QLatin1String(qtPositionAttributeName()); - parseLog += QLatin1String("\'.\n"); - } - if (!attributes.contains(qtTexCoordAttributeName())) { - parseLog += QLatin1String("Warning: Missing reference to \'"); - parseLog += QLatin1String(qtTexCoordAttributeName()); - parseLog += QLatin1String("\'.\n"); - } - } - bool respectsMatrix = false; - bool respectsOpacity = false; - for (int i = 0; i < uniformData[Key::VertexShader].size(); ++i) - respectsMatrix |= uniformData[Key::VertexShader].at(i).specialType == UniformData::Matrix; - for (int shaderType = 0; shaderType < Key::ShaderTypeCount; ++shaderType) { - for (int i = 0; i < uniformData[shaderType].size(); ++i) - respectsOpacity |= uniformData[shaderType].at(i).specialType == UniformData::Opacity; - } - if (!respectsMatrix) - parseLog += QLatin1String("Warning: Vertex shader is missing reference to \'qt_Matrix\'.\n"); - if (!respectsOpacity) - parseLog += QLatin1String("Warning: Shaders are missing reference to \'qt_Opacity\'.\n"); -} - -void QQuickShaderEffectCommon::lookThroughShaderCode(QQuickItem *item, Key::ShaderType shaderType, const QByteArray &code) -{ - int index = 0; - int typeIndex = -1; - int typeLength = 0; - int nameIndex = -1; - int nameLength = 0; - const char *s = code.constData(); - VariableQualifier decl = AttributeQualifier; - while ((index = qt_search_for_variable(s, code.size(), index, decl, typeIndex, typeLength, - nameIndex, nameLength, shaderType)) != -1) - { - if (decl == AttributeQualifier) { - if (shaderType == Key::VertexShader) - attributes.append(QByteArray(s + nameIndex, nameLength)); - } else { - Q_ASSERT(decl == UniformQualifier); - - const int sampLen = sizeof("sampler2D") - 1; - const int opLen = sizeof("qt_Opacity") - 1; - const int matLen = sizeof("qt_Matrix") - 1; - const int srLen = sizeof("qt_SubRect_") - 1; - - UniformData d; - QSignalMapper *mapper = 0; - d.name = QByteArray(s + nameIndex, nameLength); - if (nameLength == opLen && qstrncmp("qt_Opacity", s + nameIndex, opLen) == 0) { - d.specialType = UniformData::Opacity; - } else if (nameLength == matLen && qstrncmp("qt_Matrix", s + nameIndex, matLen) == 0) { - d.specialType = UniformData::Matrix; - } else if (nameLength > srLen && qstrncmp("qt_SubRect_", s + nameIndex, srLen) == 0) { - d.specialType = UniformData::SubRect; - } else { - mapper = new QSignalMapper; - mapper->setMapping(item, uniformData[shaderType].size() | (shaderType << 16)); - d.value = item->property(d.name.constData()); - bool sampler = typeLength == sampLen && qstrncmp("sampler2D", s + typeIndex, sampLen) == 0; - d.specialType = sampler ? UniformData::Sampler : UniformData::None; - } - uniformData[shaderType].append(d); - signalMappers[shaderType].append(mapper); - } - } -} - -void QQuickShaderEffectCommon::updateShader(QQuickItem *item, Key::ShaderType shaderType) -{ - disconnectPropertySignals(item, shaderType); - qDeleteAll(signalMappers[shaderType]); - uniformData[shaderType].clear(); - signalMappers[shaderType].clear(); - if (shaderType == Key::VertexShader) - attributes.clear(); - - const QByteArray &code = source.sourceCode[shaderType]; - if (code.isEmpty()) { - // Optimize for default code. - if (shaderType == Key::VertexShader) { - attributes.append(QByteArray(qtPositionAttributeName())); - attributes.append(QByteArray(qtTexCoordAttributeName())); - UniformData d; - d.name = "qt_Matrix"; - d.specialType = UniformData::Matrix; - uniformData[Key::VertexShader].append(d); - signalMappers[Key::VertexShader].append(0); - } else if (shaderType == Key::FragmentShader) { - UniformData d; - d.name = "qt_Opacity"; - d.specialType = UniformData::Opacity; - uniformData[Key::FragmentShader].append(d); - signalMappers[Key::FragmentShader].append(0); - QSignalMapper *mapper = new QSignalMapper; - mapper->setMapping(item, 1 | (Key::FragmentShader << 16)); - const char *sourceName = "source"; - d.name = sourceName; - d.value = item->property(sourceName); - d.specialType = UniformData::Sampler; - uniformData[Key::FragmentShader].append(d); - signalMappers[Key::FragmentShader].append(mapper); - } - } else { - lookThroughShaderCode(item, shaderType, code); - } - - connectPropertySignals(item, shaderType); -} - -void QQuickShaderEffectCommon::updateMaterial(QQuickShaderEffectNode *node, - QQuickShaderEffectMaterial *material, - bool updateUniforms, bool updateUniformValues, - bool updateTextureProviders) -{ - if (updateUniforms) { - for (int i = 0; i < material->textureProviders.size(); ++i) { - QSGTextureProvider *t = material->textureProviders.at(i); - if (t) { - QObject::disconnect(t, SIGNAL(textureChanged()), node, SLOT(markDirtyTexture())); - QObject::disconnect(t, SIGNAL(destroyed(QObject*)), node, SLOT(textureProviderDestroyed(QObject*))); - } - } - - // First make room in the textureProviders array. Set to proper value further down. - int textureProviderCount = 0; - for (int shaderType = 0; shaderType < Key::ShaderTypeCount; ++shaderType) { - for (int i = 0; i < uniformData[shaderType].size(); ++i) { - if (uniformData[shaderType].at(i).specialType == UniformData::Sampler) - ++textureProviderCount; - } - material->uniforms[shaderType] = uniformData[shaderType]; - } - material->textureProviders.fill(0, textureProviderCount); - updateUniformValues = false; - updateTextureProviders = true; - } - - if (updateUniformValues) { - for (int shaderType = 0; shaderType < Key::ShaderTypeCount; ++shaderType) { - Q_ASSERT(uniformData[shaderType].size() == material->uniforms[shaderType].size()); - for (int i = 0; i < uniformData[shaderType].size(); ++i) - material->uniforms[shaderType][i].value = uniformData[shaderType].at(i).value; - } - } - - if (updateTextureProviders) { - int index = 0; - for (int shaderType = 0; shaderType < Key::ShaderTypeCount; ++shaderType) { - for (int i = 0; i < uniformData[shaderType].size(); ++i) { - const UniformData &d = uniformData[shaderType].at(i); - if (d.specialType != UniformData::Sampler) - continue; - QSGTextureProvider *oldProvider = material->textureProviders.at(index); - QSGTextureProvider *newProvider = 0; - QQuickItem *source = qobject_cast<QQuickItem *>(qvariant_cast<QObject *>(d.value)); - if (source && source->isTextureProvider()) - newProvider = source->textureProvider(); - if (newProvider != oldProvider) { - if (oldProvider) { - QObject::disconnect(oldProvider, SIGNAL(textureChanged()), node, SLOT(markDirtyTexture())); - QObject::disconnect(oldProvider, SIGNAL(destroyed(QObject*)), node, SLOT(textureProviderDestroyed(QObject*))); - } - if (newProvider) { - Q_ASSERT_X(newProvider->thread() == QThread::currentThread(), - "QQuickShaderEffect::updatePaintNode", - "Texture provider must belong to the rendering thread"); - QObject::connect(newProvider, SIGNAL(textureChanged()), node, SLOT(markDirtyTexture())); - QObject::connect(newProvider, SIGNAL(destroyed(QObject*)), node, SLOT(textureProviderDestroyed(QObject*))); - } else { - const char *typeName = source ? source->metaObject()->className() : d.value.typeName(); - qWarning("ShaderEffect: Property '%s' is not assigned a valid texture provider (%s).", - d.name.constData(), typeName); - } - material->textureProviders[index] = newProvider; - } - ++index; - } - } - Q_ASSERT(index == material->textureProviders.size()); - } -} - -void QQuickShaderEffectCommon::updateWindow(QQuickWindow *window) -{ - // See comment in QQuickShaderEffectCommon::propertyChanged(). - if (window) { - for (int shaderType = 0; shaderType < Key::ShaderTypeCount; ++shaderType) { - for (int i = 0; i < uniformData[shaderType].size(); ++i) { - const UniformData &d = uniformData[shaderType].at(i); - if (d.specialType == UniformData::Sampler) { - QQuickItem *source = qobject_cast<QQuickItem *>(qvariant_cast<QObject *>(d.value)); - if (source) - QQuickItemPrivate::get(source)->refWindow(window); - } - } - } - } else { - for (int shaderType = 0; shaderType < Key::ShaderTypeCount; ++shaderType) { - for (int i = 0; i < uniformData[shaderType].size(); ++i) { - const UniformData &d = uniformData[shaderType].at(i); - if (d.specialType == UniformData::Sampler) { - QQuickItem *source = qobject_cast<QQuickItem *>(qvariant_cast<QObject *>(d.value)); - if (source) - QQuickItemPrivate::get(source)->derefWindow(); - } - } - } - } -} - -void QQuickShaderEffectCommon::sourceDestroyed(QObject *object) -{ - for (int shaderType = 0; shaderType < Key::ShaderTypeCount; ++shaderType) { - for (int i = 0; i < uniformData[shaderType].size(); ++i) { - UniformData &d = uniformData[shaderType][i]; - if (d.specialType == UniformData::Sampler && d.value.canConvert<QObject *>()) { - if (qvariant_cast<QObject *>(d.value) == object) - d.value = QVariant(); - } - } - } -} - -static bool qquick_uniqueInUniformData(QQuickItem *source, const QVector<QQuickShaderEffectMaterial::UniformData> *uniformData, int typeToSkip, int indexToSkip) -{ - for (int s=0; s<QQuickShaderEffectMaterialKey::ShaderTypeCount; ++s) { - for (int i=0; i<uniformData[s].size(); ++i) { - if (s == typeToSkip && i == indexToSkip) - continue; - const QQuickShaderEffectMaterial::UniformData &d = uniformData[s][i]; - if (d.specialType == QQuickShaderEffectMaterial::UniformData::Sampler && qvariant_cast<QObject *>(d.value) == source) - return false; - } - } - return true; -} - -void QQuickShaderEffectCommon::propertyChanged(QQuickItem *item, int mappedId, - bool *textureProviderChanged) -{ - Key::ShaderType shaderType = Key::ShaderType(mappedId >> 16); - int index = mappedId & 0xffff; - UniformData &d = uniformData[shaderType][index]; - if (d.specialType == UniformData::Sampler) { - QQuickItem *source = qobject_cast<QQuickItem *>(qvariant_cast<QObject *>(d.value)); - if (source) { - if (item->window()) - QQuickItemPrivate::get(source)->derefWindow(); - - // QObject::disconnect() will disconnect all matching connections. If the same - // source has been attached to two separate samplers, then changing one of them - // would trigger both to be disconnected. Without the connection we'll end up - // with a dangling pointer in the uniformData. - if (qquick_uniqueInUniformData(source, uniformData, shaderType, index)) - QObject::disconnect(source, SIGNAL(destroyed(QObject*)), item, SLOT(sourceDestroyed(QObject*))); - } - - d.value = item->property(d.name.constData()); - - source = qobject_cast<QQuickItem *>(qvariant_cast<QObject *>(d.value)); - if (source) { - // 'source' needs a window to get a scene graph node. It usually gets one through its - // parent, but if the source item is "inline" rather than a reference -- i.e. - // "property variant source: Image { }" instead of "property variant source: foo" -- it - // will not get a parent. In those cases, 'source' should get the window from 'item'. - if (item->window()) - QQuickItemPrivate::get(source)->refWindow(item->window()); - QObject::connect(source, SIGNAL(destroyed(QObject*)), item, SLOT(sourceDestroyed(QObject*))); - } - if (textureProviderChanged) - *textureProviderChanged = true; - } else { - d.value = item->property(d.name.constData()); - if (textureProviderChanged) - *textureProviderChanged = false; - } -} - - /*! \qmltype ShaderEffect \instantiates QQuickShaderEffect @@ -675,30 +191,10 @@ void QQuickShaderEffectCommon::propertyChanged(QQuickItem *item, int mappedId, QQuickShaderEffect::QQuickShaderEffect(QQuickItem *parent) : QQuickItem(parent) - , m_meshResolution(1, 1) - , m_mesh(0) - , m_cullMode(NoCulling) - , m_status(Uncompiled) - , m_blending(true) - , m_dirtyUniforms(true) - , m_dirtyUniformValues(true) - , m_dirtyTextureProviders(true) - , m_dirtyProgram(true) - , m_dirtyParseLog(true) - , m_dirtyMesh(true) - , m_dirtyGeometry(true) - , m_customVertexShader(false) - , m_supportsAtlasTextures(false) { setFlag(QQuickItem::ItemHasContents); } -QQuickShaderEffect::~QQuickShaderEffect() -{ - for (int shaderType = 0; shaderType < Key::ShaderTypeCount; ++shaderType) - m_common.disconnectPropertySignals(this, Key::ShaderType(shaderType)); -} - /*! \qmlproperty string QtQuick::ShaderEffect::fragmentShader @@ -708,23 +204,14 @@ QQuickShaderEffect::~QQuickShaderEffect() sampler2D named "source". */ -void QQuickShaderEffect::setFragmentShader(const QByteArray &code) +QByteArray QQuickShaderEffect::fragmentShader() const { - if (m_common.source.sourceCode[Key::FragmentShader].constData() == code.constData()) - return; - m_common.source.sourceCode[Key::FragmentShader] = code; - m_dirtyProgram = true; - m_dirtyParseLog = true; - - if (isComponentComplete()) - m_common.updateShader(this, Key::FragmentShader); + return QByteArray(); +} - update(); - if (m_status != Uncompiled) { - m_status = Uncompiled; - emit statusChanged(); - } - emit fragmentShaderChanged(); +void QQuickShaderEffect::setFragmentShader(const QByteArray &code) +{ + Q_UNUSED(code); } /*! @@ -735,24 +222,14 @@ void QQuickShaderEffect::setFragmentShader(const QByteArray &code) shader as "varying highp vec2 qt_TexCoord0". */ -void QQuickShaderEffect::setVertexShader(const QByteArray &code) +QByteArray QQuickShaderEffect::vertexShader() const { - if (m_common.source.sourceCode[Key::VertexShader].constData() == code.constData()) - return; - m_common.source.sourceCode[Key::VertexShader] = code; - m_dirtyProgram = true; - m_dirtyParseLog = true; - m_customVertexShader = true; - - if (isComponentComplete()) - m_common.updateShader(this, Key::VertexShader); + return QByteArray(); +} - update(); - if (m_status != Uncompiled) { - m_status = Uncompiled; - emit statusChanged(); - } - emit vertexShaderChanged(); +void QQuickShaderEffect::setVertexShader(const QByteArray &code) +{ + Q_UNUSED(code); } /*! @@ -764,15 +241,14 @@ void QQuickShaderEffect::setVertexShader(const QByteArray &code) property to false when blending is not needed. The default value is true. */ -void QQuickShaderEffect::setBlending(bool enable) +bool QQuickShaderEffect::blending() const { - if (blending() == enable) - return; - - m_blending = enable; - update(); + return true; +} - emit blendingChanged(); +void QQuickShaderEffect::setBlending(bool enable) +{ + Q_UNUSED(enable); } /*! @@ -790,44 +266,12 @@ void QQuickShaderEffect::setBlending(bool enable) QVariant QQuickShaderEffect::mesh() const { - return m_mesh ? qVariantFromValue(static_cast<QObject *>(m_mesh)) - : qVariantFromValue(m_meshResolution); + return QVariant(); } void QQuickShaderEffect::setMesh(const QVariant &mesh) { - QQuickShaderEffectMesh *newMesh = qobject_cast<QQuickShaderEffectMesh *>(qvariant_cast<QObject *>(mesh)); - if (newMesh && newMesh == m_mesh) - return; - if (m_mesh) - disconnect(m_mesh, SIGNAL(geometryChanged()), this, 0); - m_mesh = newMesh; - if (m_mesh) { - connect(m_mesh, SIGNAL(geometryChanged()), this, SLOT(updateGeometry())); - } else { - if (mesh.canConvert<QSize>()) { - m_meshResolution = mesh.toSize(); - } else { - QList<QByteArray> res = mesh.toByteArray().split('x'); - bool ok = res.size() == 2; - if (ok) { - int w = res.at(0).toInt(&ok); - if (ok) { - int h = res.at(1).toInt(&ok); - if (ok) - m_meshResolution = QSize(w, h); - } - } - if (!ok) - qWarning("ShaderEffect: mesh property must be size or object deriving from QQuickShaderEffectMesh."); - } - m_defaultMesh.setResolution(m_meshResolution); - } - - m_dirtyMesh = true; - m_dirtyParseLog = true; - update(); - emit meshChanged(); + Q_UNUSED(mesh); } /*! @@ -844,13 +288,14 @@ void QQuickShaderEffect::setMesh(const QVariant &mesh) The default is NoCulling. */ +QQuickShaderEffect::CullMode QQuickShaderEffect::cullMode() const +{ + return NoCulling; +} + void QQuickShaderEffect::setCullMode(CullMode face) { - if (face == m_cullMode) - return; - m_cullMode = face; - update(); - emit cullModeChanged(); + Q_UNUSED(face); } /*! @@ -874,41 +319,14 @@ void QQuickShaderEffect::setCullMode(CullMode face) \since QtQuick 2.4 */ -void QQuickShaderEffect::setSupportsAtlasTextures(bool supports) -{ - if (supports == m_supportsAtlasTextures) - return; - m_supportsAtlasTextures = supports; - updateGeometry(); - emit supportsAtlasTexturesChanged(); -} - -QString QQuickShaderEffect::parseLog() +bool QQuickShaderEffect::supportsAtlasTextures() const { - if (m_dirtyParseLog) { - m_common.updateParseLog(m_mesh != 0); - m_dirtyParseLog = false; - } - return m_common.parseLog; + return false; } -bool QQuickShaderEffect::event(QEvent *event) +void QQuickShaderEffect::setSupportsAtlasTextures(bool supports) { - if (event->type() == QEvent::DynamicPropertyChange) { - QDynamicPropertyChangeEvent *e = static_cast<QDynamicPropertyChangeEvent *>(event); - for (int shaderType = 0; shaderType < Key::ShaderTypeCount; ++shaderType) { - for (int i = 0; i < m_common.uniformData[shaderType].size(); ++i) { - if (m_common.uniformData[shaderType].at(i).name == e->propertyName()) { - bool textureProviderChanged; - m_common.propertyChanged(this, (shaderType << 16) | i, &textureProviderChanged); - m_dirtyTextureProviders |= textureProviderChanged; - m_dirtyUniformValues = true; - update(); - } - } - } - } - return QQuickItem::event(event); + Q_UNUSED(supports); } /*! @@ -939,179 +357,14 @@ bool QQuickShaderEffect::event(QEvent *event) \sa status */ -void QQuickShaderEffect::updateGeometry() -{ - m_dirtyGeometry = true; - update(); -} - -void QQuickShaderEffect::updateGeometryIfAtlased() -{ - if (m_supportsAtlasTextures) - updateGeometry(); -} - -void QQuickShaderEffect::updateLogAndStatus(const QString &log, int status) -{ - m_log = parseLog() + log; - m_status = Status(status); - emit logChanged(); - emit statusChanged(); -} - -void QQuickShaderEffect::sourceDestroyed(QObject *object) -{ - m_common.sourceDestroyed(object); -} - - -void QQuickShaderEffect::propertyChanged(int mappedId) -{ - bool textureProviderChanged; - m_common.propertyChanged(this, mappedId, &textureProviderChanged); - m_dirtyTextureProviders |= textureProviderChanged; - m_dirtyUniformValues = true; - update(); -} - -void QQuickShaderEffect::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry) -{ - m_dirtyGeometry = true; - QQuickItem::geometryChanged(newGeometry, oldGeometry); -} - -QSGNode *QQuickShaderEffect::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *) -{ - QQuickShaderEffectNode *node = static_cast<QQuickShaderEffectNode *>(oldNode); - - // In the case of zero-size or a bad vertex shader, don't try to create a node... - if (m_common.attributes.isEmpty() || width() <= 0 || height() <= 0) { - if (node) - delete node; - return 0; - } - - if (!node) { - node = new QQuickShaderEffectNode; - node->setMaterial(new QQuickShaderEffectMaterial(node)); - node->setFlag(QSGNode::OwnsMaterial, true); - m_dirtyProgram = true; - m_dirtyUniforms = true; - m_dirtyGeometry = true; - connect(node, SIGNAL(logAndStatusChanged(QString,int)), this, SLOT(updateLogAndStatus(QString,int))); - connect(node, &QQuickShaderEffectNode::dirtyTexture, - this, &QQuickShaderEffect::updateGeometryIfAtlased); - } - - QQuickShaderEffectMaterial *material = static_cast<QQuickShaderEffectMaterial *>(node->material()); - - // Update blending - if (bool(material->flags() & QSGMaterial::Blending) != m_blending) { - material->setFlag(QSGMaterial::Blending, m_blending); - node->markDirty(QSGNode::DirtyMaterial); - } - - if (int(material->cullMode) != int(m_cullMode)) { - material->cullMode = QQuickShaderEffectMaterial::CullMode(m_cullMode); - node->markDirty(QSGNode::DirtyMaterial); - } - - if (m_dirtyProgram) { - Key s = m_common.source; - QSGShaderSourceBuilder builder; - if (s.sourceCode[Key::FragmentShader].isEmpty()) { - builder.appendSourceFile(QStringLiteral(":/qt-project.org/items/shaders/shadereffect.frag")); - s.sourceCode[Key::FragmentShader] = builder.source(); - builder.clear(); - } - if (s.sourceCode[Key::VertexShader].isEmpty()) { - builder.appendSourceFile(QStringLiteral(":/qt-project.org/items/shaders/shadereffect.vert")); - s.sourceCode[Key::VertexShader] = builder.source(); - } - s.className = metaObject()->className(); - - material->setProgramSource(s); - material->attributes = m_common.attributes; - node->markDirty(QSGNode::DirtyMaterial); - m_dirtyProgram = false; - m_dirtyUniforms = true; - } - - if (m_dirtyUniforms || m_dirtyUniformValues || m_dirtyTextureProviders) { - m_common.updateMaterial(node, material, m_dirtyUniforms, m_dirtyUniformValues, - m_dirtyTextureProviders); - node->markDirty(QSGNode::DirtyMaterial); - m_dirtyUniforms = m_dirtyUniformValues = m_dirtyTextureProviders = false; - } - - QRectF srcRect(0, 0, 1, 1); - bool geometryUsesTextureSubRect = false; - if (m_supportsAtlasTextures && material->textureProviders.size() == 1) { - QSGTextureProvider *provider = material->textureProviders.at(0); - if (provider->texture()) { - srcRect = provider->texture()->normalizedTextureSubRect(); - geometryUsesTextureSubRect = true; - } - } - - if (bool(material->flags() & QSGMaterial::RequiresFullMatrix) != m_customVertexShader) { - material->setFlag(QSGMaterial::RequiresFullMatrix, m_customVertexShader); - node->markDirty(QSGNode::DirtyMaterial); - } - - if (material->geometryUsesTextureSubRect != geometryUsesTextureSubRect) { - material->geometryUsesTextureSubRect = geometryUsesTextureSubRect; - node->markDirty(QSGNode::DirtyMaterial); - } - - if (m_dirtyMesh) { - node->setGeometry(0); - m_dirtyMesh = false; - m_dirtyGeometry = true; - } - - if (m_dirtyGeometry) { - node->setFlag(QSGNode::OwnsGeometry, false); - QSGGeometry *geometry = node->geometry(); - QRectF rect(0, 0, width(), height()); - QQuickShaderEffectMesh *mesh = m_mesh ? m_mesh : &m_defaultMesh; - - geometry = mesh->updateGeometry(geometry, m_common.attributes, srcRect, rect); - if (!geometry) { - QString log = mesh->log(); - if (!log.isNull()) { - m_log = parseLog(); - m_log += QLatin1String("*** Mesh ***\n"); - m_log += log; - m_status = Error; - emit logChanged(); - emit statusChanged(); - } - delete node; - return 0; - } - - node->setGeometry(geometry); - node->setFlag(QSGNode::OwnsGeometry, true); - - m_dirtyGeometry = false; - } - - return node; -} - -void QQuickShaderEffect::componentComplete() +QString QQuickShaderEffect::log() const { - m_common.updateShader(this, Key::VertexShader); - m_common.updateShader(this, Key::FragmentShader); - QQuickItem::componentComplete(); + return QString(); } -void QQuickShaderEffect::itemChange(ItemChange change, const ItemChangeData &value) +QQuickShaderEffect::Status QQuickShaderEffect::status() const { - if (change == QQuickItem::ItemSceneChange) - m_common.updateWindow(value.window); - QQuickItem::itemChange(change, value); + return Uncompiled; } QT_END_NAMESPACE |