diff options
author | Jean-Michaël Celerier <jean-michael.celerier@kdab.com> | 2020-03-13 10:56:30 +0100 |
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committer | Jean-Michaël Celerier <jean-michael.celerier@kdab.com> | 2020-03-19 07:14:12 +0100 |
commit | a6ffce09ce6d4fd39fbb50eb58f7b5d1027f4d60 (patch) | |
tree | fc5bbe90e61ce562cc880b38011cda75eabc808d /src/render/shadergraph | |
parent | 662c47d6e9c806f6c0d654e7ecce9a66a4f35154 (diff) |
Move shadergraph to Qt3D
Change-Id: I3ed10747175a58513933b29eac66ddf92fe87d07
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>
Diffstat (limited to 'src/render/shadergraph')
-rw-r--r-- | src/render/shadergraph/qshaderformat.cpp | 146 | ||||
-rw-r--r-- | src/render/shadergraph/qshaderformat_p.h | 126 | ||||
-rw-r--r-- | src/render/shadergraph/qshadergenerator.cpp | 640 | ||||
-rw-r--r-- | src/render/shadergraph/qshadergenerator_p.h | 81 | ||||
-rw-r--r-- | src/render/shadergraph/qshadergraph.cpp | 317 | ||||
-rw-r--r-- | src/render/shadergraph/qshadergraph_p.h | 126 | ||||
-rw-r--r-- | src/render/shadergraph/qshadergraphloader.cpp | 271 | ||||
-rw-r--r-- | src/render/shadergraph/qshadergraphloader_p.h | 102 | ||||
-rw-r--r-- | src/render/shadergraph/qshaderlanguage.cpp | 57 | ||||
-rw-r--r-- | src/render/shadergraph/qshaderlanguage_p.h | 164 | ||||
-rw-r--r-- | src/render/shadergraph/qshadernode.cpp | 174 | ||||
-rw-r--r-- | src/render/shadergraph/qshadernode_p.h | 131 | ||||
-rw-r--r-- | src/render/shadergraph/qshadernodeport.cpp | 58 | ||||
-rw-r--r-- | src/render/shadergraph/qshadernodeport_p.h | 91 | ||||
-rw-r--r-- | src/render/shadergraph/qshadernodesloader.cpp | 292 | ||||
-rw-r--r-- | src/render/shadergraph/qshadernodesloader_p.h | 99 | ||||
-rw-r--r-- | src/render/shadergraph/shadergraph.pri | 21 |
17 files changed, 2896 insertions, 0 deletions
diff --git a/src/render/shadergraph/qshaderformat.cpp b/src/render/shadergraph/qshaderformat.cpp new file mode 100644 index 000000000..98643fb24 --- /dev/null +++ b/src/render/shadergraph/qshaderformat.cpp @@ -0,0 +1,146 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qshaderformat_p.h" + +QT_BEGIN_NAMESPACE +namespace Qt3DRender +{ +QShaderFormat::QShaderFormat() noexcept + : m_api(NoApi) + , m_shaderType(Fragment) +{ +} + +QShaderFormat::Api QShaderFormat::api() const noexcept +{ + return m_api; +} + +void QShaderFormat::setApi(QShaderFormat::Api api) noexcept +{ + m_api = api; +} + +QVersionNumber QShaderFormat::version() const noexcept +{ + return m_version; +} + +void QShaderFormat::setVersion(const QVersionNumber &version) noexcept +{ + m_version = version; +} + +QStringList QShaderFormat::extensions() const noexcept +{ + return m_extensions; +} + +void QShaderFormat::setExtensions(const QStringList &extensions) noexcept +{ + m_extensions = extensions; + m_extensions.sort(); +} + +QString QShaderFormat::vendor() const noexcept +{ + return m_vendor; +} + +void QShaderFormat::setVendor(const QString &vendor) noexcept +{ + m_vendor = vendor; +} + +bool QShaderFormat::isValid() const noexcept +{ + return m_api != NoApi && m_version.majorVersion() > 0; +} + +bool QShaderFormat::supports(const QShaderFormat &other) const noexcept +{ + if (!isValid() || !other.isValid()) + return false; + + if (m_api == OpenGLES && m_api != other.m_api) + return false; + + if (m_api == OpenGLCoreProfile && m_api != other.m_api) + return false; + + if (m_version < other.m_version) + return false; + + if (m_shaderType != other.m_shaderType) + return false; + + const auto containsAllExtensionsFromOther = std::includes(m_extensions.constBegin(), + m_extensions.constEnd(), + other.m_extensions.constBegin(), + other.m_extensions.constEnd()); + if (!containsAllExtensionsFromOther) + return false; + + if (!other.m_vendor.isEmpty() && m_vendor != other.m_vendor) + return false; + + return true; +} + +QShaderFormat::ShaderType QShaderFormat::shaderType() const Q_DECL_NOTHROW +{ + return m_shaderType; +} + +void QShaderFormat::setShaderType(QShaderFormat::ShaderType shaderType) Q_DECL_NOTHROW +{ + m_shaderType = shaderType; +} + +bool operator==(const QShaderFormat &lhs, const QShaderFormat &rhs) noexcept +{ + return lhs.api() == rhs.api() + && lhs.version() == rhs.version() + && lhs.extensions() == rhs.extensions() + && lhs.vendor() == rhs.vendor() + && lhs.shaderType() == rhs.shaderType(); +} +} +QT_END_NAMESPACE diff --git a/src/render/shadergraph/qshaderformat_p.h b/src/render/shadergraph/qshaderformat_p.h new file mode 100644 index 000000000..ad9898bd0 --- /dev/null +++ b/src/render/shadergraph/qshaderformat_p.h @@ -0,0 +1,126 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QT3DRENDER_QSHADERFORMAT_P_H +#define QT3DRENDER_QSHADERFORMAT_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <Qt3DRender/private/qt3drender_global_p.h> + +#include <QtCore/qstringlist.h> +#include <QtCore/qversionnumber.h> + +QT_BEGIN_NAMESPACE +namespace Qt3DRender +{ +class QShaderFormat +{ +public: + enum Api : int { + NoApi, + OpenGLNoProfile, + OpenGLCoreProfile, + OpenGLCompatibilityProfile, + OpenGLES, + VulkanFlavoredGLSL, + RHI + }; + + enum ShaderType : int { + Vertex = 0, + TessellationControl, + TessellationEvaluation, + Geometry, + Fragment, + Compute + }; + + Q_3DRENDERSHARED_PRIVATE_EXPORT QShaderFormat() noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT Api api() const noexcept; + Q_3DRENDERSHARED_PRIVATE_EXPORT void setApi(Api api) noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT QVersionNumber version() const noexcept; + Q_3DRENDERSHARED_PRIVATE_EXPORT void setVersion(const QVersionNumber &version) noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT QStringList extensions() const noexcept; + Q_3DRENDERSHARED_PRIVATE_EXPORT void setExtensions(const QStringList &extensions) noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT QString vendor() const noexcept; + Q_3DRENDERSHARED_PRIVATE_EXPORT void setVendor(const QString &vendor) noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT bool isValid() const noexcept; + Q_3DRENDERSHARED_PRIVATE_EXPORT bool supports(const QShaderFormat &other) const noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT ShaderType shaderType() const Q_DECL_NOTHROW; + Q_3DRENDERSHARED_PRIVATE_EXPORT void setShaderType(ShaderType shaderType) Q_DECL_NOTHROW; + +private: + Api m_api; + QVersionNumber m_version; + QStringList m_extensions; + QString m_vendor; + ShaderType m_shaderType; +}; + +Q_3DRENDERSHARED_PRIVATE_EXPORT bool operator==(const QShaderFormat &lhs, const QShaderFormat &rhs) noexcept; + +inline bool operator!=(const QShaderFormat &lhs, const QShaderFormat &rhs) noexcept +{ + return !(lhs == rhs); +} + + +} +Q_DECLARE_TYPEINFO(Qt3DRender::QShaderFormat, Q_MOVABLE_TYPE); +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(Qt3DRender::QShaderFormat) + +#endif // QT3DRENDER_QSHADERFORMAT_P_H diff --git a/src/render/shadergraph/qshadergenerator.cpp b/src/render/shadergraph/qshadergenerator.cpp new file mode 100644 index 000000000..4f37cfef1 --- /dev/null +++ b/src/render/shadergraph/qshadergenerator.cpp @@ -0,0 +1,640 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qshadergenerator_p.h" + +#include "qshaderlanguage_p.h" +#include <QRegularExpression> + +#include <cctype> + +QT_BEGIN_NAMESPACE +namespace Qt3DRender +{ +Q_LOGGING_CATEGORY(ShaderGenerator, "ShaderGenerator", QtWarningMsg) + +namespace +{ + QByteArray toGlsl(QShaderLanguage::StorageQualifier qualifier, const QShaderFormat &format) + { + if (format.version().majorVersion() <= 2) { + // Note we're assuming fragment shader only here, it'd be different + // values for vertex shader, will need to be fixed properly at some + // point but isn't necessary yet (this problem already exists in past + // commits anyway) + switch (qualifier) { + case QShaderLanguage::Const: + return "const"; + case QShaderLanguage::Input: + if (format.shaderType() == QShaderFormat::Vertex) + return "attribute"; + else + return "varying"; + case QShaderLanguage::Output: + return ""; // Although fragment shaders for <=2 only have fixed outputs + case QShaderLanguage::Uniform: + return "uniform"; + case QShaderLanguage::BuiltIn: + return "//"; + } + } else { + switch (qualifier) { + case QShaderLanguage::Const: + return "const"; + case QShaderLanguage::Input: + return "in"; + case QShaderLanguage::Output: + return "out"; + case QShaderLanguage::Uniform: + return "uniform"; + case QShaderLanguage::BuiltIn: + return "//"; + } + } + + Q_UNREACHABLE(); + } + + QByteArray toGlsl(QShaderLanguage::VariableType type) + { + switch (type) { + case QShaderLanguage::Bool: + return "bool"; + case QShaderLanguage::Int: + return "int"; + case QShaderLanguage::Uint: + return "uint"; + case QShaderLanguage::Float: + return "float"; + case QShaderLanguage::Double: + return "double"; + case QShaderLanguage::Vec2: + return "vec2"; + case QShaderLanguage::Vec3: + return "vec3"; + case QShaderLanguage::Vec4: + return "vec4"; + case QShaderLanguage::DVec2: + return "dvec2"; + case QShaderLanguage::DVec3: + return "dvec3"; + case QShaderLanguage::DVec4: + return "dvec4"; + case QShaderLanguage::BVec2: + return "bvec2"; + case QShaderLanguage::BVec3: + return "bvec3"; + case QShaderLanguage::BVec4: + return "bvec4"; + case QShaderLanguage::IVec2: + return "ivec2"; + case QShaderLanguage::IVec3: + return "ivec3"; + case QShaderLanguage::IVec4: + return "ivec4"; + case QShaderLanguage::UVec2: + return "uvec2"; + case QShaderLanguage::UVec3: + return "uvec3"; + case QShaderLanguage::UVec4: + return "uvec4"; + case QShaderLanguage::Mat2: + return "mat2"; + case QShaderLanguage::Mat3: + return "mat3"; + case QShaderLanguage::Mat4: + return "mat4"; + case QShaderLanguage::Mat2x2: + return "mat2x2"; + case QShaderLanguage::Mat2x3: + return "mat2x3"; + case QShaderLanguage::Mat2x4: + return "mat2x4"; + case QShaderLanguage::Mat3x2: + return "mat3x2"; + case QShaderLanguage::Mat3x3: + return "mat3x3"; + case QShaderLanguage::Mat3x4: + return "mat3x4"; + case QShaderLanguage::Mat4x2: + return "mat4x2"; + case QShaderLanguage::Mat4x3: + return "mat4x3"; + case QShaderLanguage::Mat4x4: + return "mat4x4"; + case QShaderLanguage::DMat2: + return "dmat2"; + case QShaderLanguage::DMat3: + return "dmat3"; + case QShaderLanguage::DMat4: + return "dmat4"; + case QShaderLanguage::DMat2x2: + return "dmat2x2"; + case QShaderLanguage::DMat2x3: + return "dmat2x3"; + case QShaderLanguage::DMat2x4: + return "dmat2x4"; + case QShaderLanguage::DMat3x2: + return "dmat3x2"; + case QShaderLanguage::DMat3x3: + return "dmat3x3"; + case QShaderLanguage::DMat3x4: + return "dmat3x4"; + case QShaderLanguage::DMat4x2: + return "dmat4x2"; + case QShaderLanguage::DMat4x3: + return "dmat4x3"; + case QShaderLanguage::DMat4x4: + return "dmat4x4"; + case QShaderLanguage::Sampler1D: + return "sampler1D"; + case QShaderLanguage::Sampler2D: + return "sampler2D"; + case QShaderLanguage::Sampler3D: + return "sampler3D"; + case QShaderLanguage::SamplerCube: + return "samplerCube"; + case QShaderLanguage::Sampler2DRect: + return "sampler2DRect"; + case QShaderLanguage::Sampler2DMs: + return "sampler2DMS"; + case QShaderLanguage::SamplerBuffer: + return "samplerBuffer"; + case QShaderLanguage::Sampler1DArray: + return "sampler1DArray"; + case QShaderLanguage::Sampler2DArray: + return "sampler2DArray"; + case QShaderLanguage::Sampler2DMsArray: + return "sampler2DMSArray"; + case QShaderLanguage::SamplerCubeArray: + return "samplerCubeArray"; + case QShaderLanguage::Sampler1DShadow: + return "sampler1DShadow"; + case QShaderLanguage::Sampler2DShadow: + return "sampler2DShadow"; + case QShaderLanguage::Sampler2DRectShadow: + return "sampler2DRectShadow"; + case QShaderLanguage::Sampler1DArrayShadow: + return "sampler1DArrayShadow"; + case QShaderLanguage::Sampler2DArrayShadow: + return "sample2DArrayShadow"; + case QShaderLanguage::SamplerCubeShadow: + return "samplerCubeShadow"; + case QShaderLanguage::SamplerCubeArrayShadow: + return "samplerCubeArrayShadow"; + case QShaderLanguage::ISampler1D: + return "isampler1D"; + case QShaderLanguage::ISampler2D: + return "isampler2D"; + case QShaderLanguage::ISampler3D: + return "isampler3D"; + case QShaderLanguage::ISamplerCube: + return "isamplerCube"; + case QShaderLanguage::ISampler2DRect: + return "isampler2DRect"; + case QShaderLanguage::ISampler2DMs: + return "isampler2DMS"; + case QShaderLanguage::ISamplerBuffer: + return "isamplerBuffer"; + case QShaderLanguage::ISampler1DArray: + return "isampler1DArray"; + case QShaderLanguage::ISampler2DArray: + return "isampler2DArray"; + case QShaderLanguage::ISampler2DMsArray: + return "isampler2DMSArray"; + case QShaderLanguage::ISamplerCubeArray: + return "isamplerCubeArray"; + case QShaderLanguage::USampler1D: + return "usampler1D"; + case QShaderLanguage::USampler2D: + return "usampler2D"; + case QShaderLanguage::USampler3D: + return "usampler3D"; + case QShaderLanguage::USamplerCube: + return "usamplerCube"; + case QShaderLanguage::USampler2DRect: + return "usampler2DRect"; + case QShaderLanguage::USampler2DMs: + return "usampler2DMS"; + case QShaderLanguage::USamplerBuffer: + return "usamplerBuffer"; + case QShaderLanguage::USampler1DArray: + return "usampler1DArray"; + case QShaderLanguage::USampler2DArray: + return "usampler2DArray"; + case QShaderLanguage::USampler2DMsArray: + return "usampler2DMSArray"; + case QShaderLanguage::USamplerCubeArray: + return "usamplerCubeArray"; + } + + Q_UNREACHABLE(); + } + + QByteArray replaceParameters(const QByteArray &original, const QShaderNode &node, const QShaderFormat &format) + { + QByteArray result = original; + + const QStringList parameterNames = node.parameterNames(); + for (const QString ¶meterName : parameterNames) { + const QByteArray placeholder = QByteArray(QByteArrayLiteral("$") + parameterName.toUtf8()); + const QVariant parameter = node.parameter(parameterName); + if (parameter.userType() == qMetaTypeId<QShaderLanguage::StorageQualifier>()) { + const QShaderLanguage::StorageQualifier qualifier = qvariant_cast<QShaderLanguage::StorageQualifier>(parameter); + const QByteArray value = toGlsl(qualifier, format); + result.replace(placeholder, value); + } else if (parameter.userType() == qMetaTypeId<QShaderLanguage::VariableType>()) { + const QShaderLanguage::VariableType type = qvariant_cast<QShaderLanguage::VariableType>(parameter); + const QByteArray value = toGlsl(type); + result.replace(placeholder, value); + } else { + const QByteArray value = parameter.toString().toUtf8(); + result.replace(placeholder, value); + } + } + + return result; + } +} + +QByteArray QShaderGenerator::createShaderCode(const QStringList &enabledLayers) const +{ + auto code = QByteArrayList(); + + if (format.isValid()) { + const bool isGLES = format.api() == QShaderFormat::OpenGLES; + const int major = format.version().majorVersion(); + const int minor = format.version().minorVersion(); + + const int version = major == 2 && isGLES ? 100 + : major == 3 && isGLES ? 300 + : major == 2 ? 100 + 10 * (minor + 1) + : major == 3 && minor <= 2 ? 100 + 10 * (minor + 3) + : major * 100 + minor * 10 + ; + + const QByteArray profile = isGLES && version > 100 ? QByteArrayLiteral(" es") + : version >= 150 && format.api() == QShaderFormat::OpenGLCoreProfile ? QByteArrayLiteral(" core") + : version >= 150 && format.api() == QShaderFormat::OpenGLCompatibilityProfile ? QByteArrayLiteral(" compatibility") + : QByteArray(); + + code << (QByteArrayLiteral("#version ") + QByteArray::number(version) + profile); + code << QByteArray(); + } + + const auto intersectsEnabledLayers = [enabledLayers] (const QStringList &layers) { + return layers.isEmpty() + || std::any_of(layers.cbegin(), layers.cend(), + [enabledLayers] (const QString &s) { return enabledLayers.contains(s); }); + }; + + QVector<QString> globalInputVariables; + const QRegularExpression globalInputExtractRegExp(QStringLiteral("^.*\\s+(\\w+).*;$")); + + const QVector<QShaderNode> nodes = graph.nodes(); + for (const QShaderNode &node : nodes) { + if (intersectsEnabledLayers(node.layers())) { + const QByteArrayList headerSnippets = node.rule(format).headerSnippets; + for (const QByteArray &snippet : headerSnippets) { + code << replaceParameters(snippet, node, format); + + // If node is an input, record the variable name into the globalInputVariables vector + if (node.type() == QShaderNode::Input) { + const QRegularExpressionMatch match = globalInputExtractRegExp.match(QString::fromUtf8(code.last())); + if (match.hasMatch()) + globalInputVariables.push_back(match.captured(1)); + } + } + } + } + + code << QByteArray(); + code << QByteArrayLiteral("void main()"); + code << QByteArrayLiteral("{"); + + const QRegularExpression temporaryVariableToAssignmentRegExp(QStringLiteral("([^;]*\\s+(v\\d+))\\s*=\\s*([^;]*);")); + const QRegularExpression temporaryVariableInAssignmentRegExp(QStringLiteral("\\W*(v\\d+)\\W*")); + const QRegularExpression statementRegExp(QStringLiteral("\\s*(\\w+)\\s*=\\s*([^;]*);")); + + struct Variable; + + struct Assignment + { + QString expression; + QVector<Variable *> referencedVariables; + }; + + struct Variable + { + enum Type { + GlobalInput, + TemporaryAssignment, + Output + }; + + QString name; + QString declaration; + int referenceCount = 0; + Assignment assignment; + Type type = TemporaryAssignment; + bool substituted = false; + + static void substitute(Variable *v) + { + if (v->substituted) + return; + + qCDebug(ShaderGenerator) << "Begin Substituting " << v->name << " = " << v->assignment.expression; + for (Variable *ref : qAsConst(v->assignment.referencedVariables)) { + // Recursively substitute + Variable::substitute(ref); + + // Replace all variables referenced only once in the assignment + // by their actual expression + if (ref->referenceCount == 1 || ref->type == Variable::GlobalInput) { + const QRegularExpression r(QStringLiteral("(.*\\b)(%1)(\\b.*)").arg(ref->name)); + if (v->assignment.referencedVariables.size() == 1) + v->assignment.expression.replace(r, + QStringLiteral("\\1%2\\3").arg(ref->assignment.expression)); + else + v->assignment.expression.replace(r, + QStringLiteral("(\\1%2\\3)").arg(ref->assignment.expression)); + } + } + qCDebug(ShaderGenerator) << "Done Substituting " << v->name << " = " << v->assignment.expression; + v->substituted = true; + } + }; + + struct LineContent + { + QByteArray rawContent; + Variable *var = nullptr; + }; + + // Table to store temporary variables that should be replaced: + // - If variable references a a global variables + // -> we will use the global variable directly + // - If variable references a function results + // -> will be kept only if variable is referenced more than once. + // This avoids having vec3 v56 = vertexPosition; when we could + // just use vertexPosition directly. + // The added benefit is when having arrays, we don't try to create + // mat4 v38 = skinningPalelette[100] which would be invalid + QVector<Variable> temporaryVariables; + // Reserve more than enough space to ensure no reallocation will take place + temporaryVariables.reserve(nodes.size() * 8); + + QVector<LineContent> lines; + + auto createVariable = [&] () -> Variable * { + Q_ASSERT(temporaryVariables.capacity() > 0); + temporaryVariables.resize(temporaryVariables.size() + 1); + return &temporaryVariables.last(); + }; + + auto findVariable = [&] (const QString &name) -> Variable * { + const auto end = temporaryVariables.end(); + auto it = std::find_if(temporaryVariables.begin(), end, + [=] (const Variable &a) { return a.name == name; }); + if (it != end) + return &(*it); + return nullptr; + }; + + auto gatherTemporaryVariablesFromAssignment = [&] (Variable *v, const QString &assignmentContent) { + QRegularExpressionMatchIterator subMatchIt = temporaryVariableInAssignmentRegExp.globalMatch(assignmentContent); + while (subMatchIt.hasNext()) { + const QRegularExpressionMatch subMatch = subMatchIt.next(); + const QString variableName = subMatch.captured(1); + + // Variable we care about should already exists -> an expression cannot reference a variable that hasn't been defined + Variable *u = findVariable(variableName); + Q_ASSERT(u); + + // Increase reference count for u + ++u->referenceCount; + // Insert u as reference for variable v + v->assignment.referencedVariables.push_back(u); + } + }; + + for (const QShaderGraph::Statement &statement : graph.createStatements(enabledLayers)) { + const QShaderNode node = statement.node; + QByteArray line = node.rule(format).substitution; + const QVector<QShaderNodePort> ports = node.ports(); + + struct VariableReplacement { + QByteArray placeholder; + QByteArray variable; + }; + + QVector<VariableReplacement> variableReplacements; + + // Generate temporary variable names vN + for (const QShaderNodePort &port : ports) { + const QString portName = port.name; + const QShaderNodePort::Direction portDirection = port.direction; + const bool isInput = port.direction == QShaderNodePort::Input; + + const int portIndex = statement.portIndex(portDirection, portName); + + Q_ASSERT(portIndex >= 0); + + const int variableIndex = isInput ? statement.inputs.at(portIndex) + : statement.outputs.at(portIndex); + if (variableIndex < 0) + continue; + + VariableReplacement replacement; + replacement.placeholder = QByteArrayLiteral("$") + portName.toUtf8(); + replacement.variable = QByteArrayLiteral("v") + QByteArray::number(variableIndex); + + variableReplacements.append(std::move(replacement)); + } + + int begin = 0; + while ((begin = line.indexOf('$', begin)) != -1) { + int end = begin + 1; + char endChar = line.at(end); + const int size = line.size(); + while (end < size && (std::isalnum(endChar) || endChar == '_')) { + ++end; + endChar = line.at(end); + } + + const int placeholderLength = end - begin; + + const QByteArray variableName = line.mid(begin, placeholderLength); + const auto replacementIt = std::find_if(variableReplacements.cbegin(), variableReplacements.cend(), + [&variableName](const VariableReplacement &replacement) { + return variableName == replacement.placeholder; + }); + + if (replacementIt != variableReplacements.cend()) { + line.replace(begin, placeholderLength, replacementIt->variable); + begin += replacementIt->variable.length(); + } else { + begin = end; + } + } + + // Substitute variable names by generated vN variable names + const QByteArray substitutionedLine = replaceParameters(line, node, format); + + QRegularExpressionMatchIterator matches; + + switch (node.type()) { + case QShaderNode::Input: + case QShaderNode::Output: + matches = statementRegExp.globalMatch(QString::fromUtf8(substitutionedLine)); + break; + case QShaderNode::Function: + matches = temporaryVariableToAssignmentRegExp.globalMatch(QString::fromUtf8(substitutionedLine)); + break; + case QShaderNode::Invalid: + break; + } + + while (matches.hasNext()) { + QRegularExpressionMatch match = matches.next(); + + Variable *v = nullptr; + + switch (node.type()) { + // Record name of temporary variable that possibly references a global input + // We will replace the temporary variables by the matching global variables later + case QShaderNode::Input: { + const QString localVariable = match.captured(1); + const QString globalVariable = match.captured(2); + + v = createVariable(); + v->name = localVariable; + v->type = Variable::GlobalInput; + + Assignment assignment; + assignment.expression = globalVariable; + v->assignment = assignment; + break; + } + + case QShaderNode::Function: { + const QString localVariableDeclaration = match.captured(1); + const QString localVariableName = match.captured(2); + const QString assignmentContent = match.captured(3); + + // Add new variable -> it cannot exist already + v = createVariable(); + v->name = localVariableName; + v->declaration = localVariableDeclaration; + v->assignment.expression = assignmentContent; + + // Find variables that may be referenced in the assignment + gatherTemporaryVariablesFromAssignment(v, assignmentContent); + break; + } + + case QShaderNode::Output: { + const QString outputDeclaration = match.captured(1); + const QString assignmentContent = match.captured(2); + + v = createVariable(); + v->name = outputDeclaration; + v->declaration = outputDeclaration; + v->type = Variable::Output; + + Assignment assignment; + assignment.expression = assignmentContent; + v->assignment = assignment; + + // Find variables that may be referenced in the assignment + gatherTemporaryVariablesFromAssignment(v, assignmentContent); + break; + } + case QShaderNode::Invalid: + break; + } + + LineContent lineContent; + lineContent.rawContent = QByteArray(QByteArrayLiteral(" ") + substitutionedLine); + lineContent.var = v; + lines << lineContent; + } + } + + // Go through all lines + // Perform substitution of line with temporary variables substitution + for (LineContent &lineContent : lines) { + Variable *v = lineContent.var; + qCDebug(ShaderGenerator) << lineContent.rawContent; + if (v != nullptr) { + Variable::substitute(v); + + qCDebug(ShaderGenerator) << "Line " << lineContent.rawContent << "is assigned to temporary" << v->name; + + // Check number of occurrences a temporary variable is referenced + if (v->referenceCount == 1 || v->type == Variable::GlobalInput) { + // If it is referenced only once, no point in creating a temporary + // Clear content for current line + lineContent.rawContent.clear(); + // We assume expression that were referencing vN will have vN properly substituted + } else { + lineContent.rawContent = QStringLiteral(" %1 = %2;").arg(v->declaration) + .arg(v->assignment.expression) + .toUtf8(); + } + + qCDebug(ShaderGenerator) << "Updated Line is " << lineContent.rawContent; + } + } + + // Go throug all lines and insert content + for (const LineContent &lineContent : qAsConst(lines)) { + if (!lineContent.rawContent.isEmpty()) { + code << lineContent.rawContent; + } + } + + code << QByteArrayLiteral("}"); + code << QByteArray(); + + return code.join('\n'); +} +} +QT_END_NAMESPACE diff --git a/src/render/shadergraph/qshadergenerator_p.h b/src/render/shadergraph/qshadergenerator_p.h new file mode 100644 index 000000000..aebeaa8f2 --- /dev/null +++ b/src/render/shadergraph/qshadergenerator_p.h @@ -0,0 +1,81 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QT3DRENDER_QSHADERGENERATOR_P_H +#define QT3DRENDER_QSHADERGENERATOR_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <Qt3DRender/private/qt3drender_global_p.h> + +#include <Qt3DRender/private/qshadergraph_p.h> +#include <QtCore/QLoggingCategory> + + +QT_BEGIN_NAMESPACE + +namespace Qt3DRender +{ +Q_DECLARE_LOGGING_CATEGORY(ShaderGenerator) + +class QShaderGenerator +{ +public: + Q_3DRENDERSHARED_PRIVATE_EXPORT QByteArray createShaderCode(const QStringList &enabledLayers = QStringList()) const; + + QShaderGraph graph; + QShaderFormat format; +}; + +} +Q_DECLARE_TYPEINFO(Qt3DRender::QShaderGenerator, Q_MOVABLE_TYPE); +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(Qt3DRender::QShaderGenerator) + +#endif // QT3DRENDER_QSHADERGENERATOR_P_H diff --git a/src/render/shadergraph/qshadergraph.cpp b/src/render/shadergraph/qshadergraph.cpp new file mode 100644 index 000000000..c2f3c343e --- /dev/null +++ b/src/render/shadergraph/qshadergraph.cpp @@ -0,0 +1,317 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qshadergraph_p.h" + +QT_BEGIN_NAMESPACE +namespace Qt3DRender +{ + +namespace +{ + QVector<QShaderNode> copyOutputNodes(const QVector<QShaderNode> &nodes, const QVector<QShaderGraph::Edge> &edges) + { + auto res = QVector<QShaderNode>(); + std::copy_if(nodes.cbegin(), nodes.cend(), + std::back_inserter(res), + [&edges] (const QShaderNode &node) { + return node.type() == QShaderNode::Output || + (node.type() == QShaderNode::Function && + !std::any_of(edges.cbegin(), + edges.cend(), + [&node] (const QShaderGraph::Edge &edge) { + return edge.sourceNodeUuid == + node.uuid(); + })); + }); + return res; + } + + QVector<QShaderGraph::Edge> incomingEdges(const QVector<QShaderGraph::Edge> &edges, const QUuid &uuid) + { + auto res = QVector<QShaderGraph::Edge>(); + std::copy_if(edges.cbegin(), edges.cend(), + std::back_inserter(res), + [uuid] (const QShaderGraph::Edge &edge) { + return edge.sourceNodeUuid == uuid; + }); + return res; + } + + QVector<QShaderGraph::Edge> outgoingEdges(const QVector<QShaderGraph::Edge> &edges, const QUuid &uuid) + { + auto res = QVector<QShaderGraph::Edge>(); + std::copy_if(edges.cbegin(), edges.cend(), + std::back_inserter(res), + [uuid] (const QShaderGraph::Edge &edge) { + return edge.targetNodeUuid == uuid; + }); + return res; + } + + QShaderGraph::Statement nodeToStatement(const QShaderNode &node, int &nextVarId) + { + auto statement = QShaderGraph::Statement(); + statement.node = node; + + const QVector<QShaderNodePort> ports = node.ports(); + for (const QShaderNodePort &port : ports) { + if (port.direction == QShaderNodePort::Input) { + statement.inputs.append(-1); + } else { + statement.outputs.append(nextVarId); + nextVarId++; + } + } + return statement; + } + + QShaderGraph::Statement completeStatement(const QHash<QUuid, QShaderGraph::Statement> &idHash, + const QVector<QShaderGraph::Edge> edges, + const QUuid &uuid) + { + auto targetStatement = idHash.value(uuid); + for (const QShaderGraph::Edge &edge : edges) { + if (edge.targetNodeUuid != uuid) + continue; + + const QShaderGraph::Statement sourceStatement = idHash.value(edge.sourceNodeUuid); + const int sourcePortIndex = sourceStatement.portIndex(QShaderNodePort::Output, edge.sourcePortName); + const int targetPortIndex = targetStatement.portIndex(QShaderNodePort::Input, edge.targetPortName); + + if (sourcePortIndex < 0 || targetPortIndex < 0) + continue; + + const QVector<int> sourceOutputs = sourceStatement.outputs; + QVector<int> &targetInputs = targetStatement.inputs; + targetInputs[targetPortIndex] = sourceOutputs[sourcePortIndex]; + } + return targetStatement; + } + + void removeNodesWithUnboundInputs(QVector<QShaderGraph::Statement> &statements, + const QVector<QShaderGraph::Edge> &allEdges) + { + // A node is invalid if any of its input ports is disconected + // or connected to the output port of another invalid node. + + // Keeps track of the edges from the nodes we know to be valid + // to unvisited nodes + auto currentEdges = QVector<QShaderGraph::Edge>(); + + statements.erase(std::remove_if(statements.begin(), + statements.end(), + [¤tEdges, &allEdges] (const QShaderGraph::Statement &statement) { + const QShaderNode &node = statement.node; + const QVector<QShaderGraph::Edge> outgoing = outgoingEdges(currentEdges, node.uuid()); + const QVector<QShaderNodePort> ports = node.ports(); + + bool allInputsConnected = true; + for (const QShaderNodePort &port : node.ports()) { + if (port.direction == QShaderNodePort::Output) + continue; + + const auto edgeIt = std::find_if(outgoing.cbegin(), + outgoing.cend(), + [&port] (const QShaderGraph::Edge &edge) { + return edge.targetPortName == port.name; + }); + + if (edgeIt != outgoing.cend()) + currentEdges.removeAll(*edgeIt); + else + allInputsConnected = false; + } + + if (allInputsConnected) { + const QVector<QShaderGraph::Edge> incoming = incomingEdges(allEdges, node.uuid()); + currentEdges.append(incoming); + } + + return !allInputsConnected; + }), + statements.end()); + } +} + +QUuid QShaderGraph::Statement::uuid() const noexcept +{ + return node.uuid(); +} + +int QShaderGraph::Statement::portIndex(QShaderNodePort::Direction direction, const QString &portName) const noexcept +{ + const QVector<QShaderNodePort> ports = node.ports(); + int index = 0; + for (const QShaderNodePort &port : ports) { + if (port.name == portName && port.direction == direction) + return index; + else if (port.direction == direction) + index++; + } + return -1; +} + +void QShaderGraph::addNode(const QShaderNode &node) +{ + removeNode(node); + m_nodes.append(node); +} + +void QShaderGraph::removeNode(const QShaderNode &node) +{ + const auto it = std::find_if(m_nodes.begin(), m_nodes.end(), + [node] (const QShaderNode &n) { return n.uuid() == node.uuid(); }); + if (it != m_nodes.end()) + m_nodes.erase(it); +} + +QVector<QShaderNode> QShaderGraph::nodes() const noexcept +{ + return m_nodes; +} + +void QShaderGraph::addEdge(const QShaderGraph::Edge &edge) +{ + if (m_edges.contains(edge)) + return; + m_edges.append(edge); +} + +void QShaderGraph::removeEdge(const QShaderGraph::Edge &edge) +{ + m_edges.removeAll(edge); +} + +QVector<QShaderGraph::Edge> QShaderGraph::edges() const noexcept +{ + return m_edges; +} + +QVector<QShaderGraph::Statement> QShaderGraph::createStatements(const QStringList &enabledLayers) const +{ + const auto intersectsEnabledLayers = [enabledLayers] (const QStringList &layers) { + return layers.isEmpty() + || std::any_of(layers.cbegin(), layers.cend(), + [enabledLayers] (const QString &s) { return enabledLayers.contains(s); }); + }; + + const QVector<QShaderNode> enabledNodes = [this, intersectsEnabledLayers] { + auto res = QVector<QShaderNode>(); + std::copy_if(m_nodes.cbegin(), m_nodes.cend(), + std::back_inserter(res), + [intersectsEnabledLayers] (const QShaderNode &node) { + return intersectsEnabledLayers(node.layers()); + }); + return res; + }(); + + const QVector<Edge> enabledEdges = [this, intersectsEnabledLayers] { + auto res = QVector<Edge>(); + std::copy_if(m_edges.cbegin(), m_edges.cend(), + std::back_inserter(res), + [intersectsEnabledLayers] (const Edge &edge) { + return intersectsEnabledLayers(edge.layers); + }); + return res; + }(); + + const QHash<QUuid, Statement> idHash = [enabledNodes] { + auto nextVarId = 0; + auto res = QHash<QUuid, Statement>(); + for (const QShaderNode &node : enabledNodes) + res.insert(node.uuid(), nodeToStatement(node, nextVarId)); + return res; + }(); + + auto result = QVector<Statement>(); + QVector<Edge> currentEdges = enabledEdges; + QVector<QUuid> currentUuids = [enabledNodes, enabledEdges] { + const QVector<QShaderNode> inputs = copyOutputNodes(enabledNodes, enabledEdges); + auto res = QVector<QUuid>(); + std::transform(inputs.cbegin(), inputs.cend(), + std::back_inserter(res), + [](const QShaderNode &node) { return node.uuid(); }); + return res; + }(); + + // Implements Kahn's algorithm to flatten the graph + // https://en.wikipedia.org/wiki/Topological_sorting#Kahn.27s_algorithm + // + // We implement it with a small twist though, we follow the edges backward + // because we want to track the dependencies from the output nodes and not the + // input nodes + while (!currentUuids.isEmpty()) { + const QUuid uuid = currentUuids.takeFirst(); + result.append(completeStatement(idHash, enabledEdges, uuid)); + + const QVector<QShaderGraph::Edge> outgoing = outgoingEdges(currentEdges, uuid); + for (const QShaderGraph::Edge &outgoingEdge : outgoing) { + currentEdges.removeAll(outgoingEdge); + const QUuid nextUuid = outgoingEdge.sourceNodeUuid; + const QVector<QShaderGraph::Edge> incoming = incomingEdges(currentEdges, nextUuid); + if (incoming.isEmpty()) { + currentUuids.append(nextUuid); + } + } + } + + std::reverse(result.begin(), result.end()); + + removeNodesWithUnboundInputs(result, enabledEdges); + + return result; +} + +bool operator==(const QShaderGraph::Edge &lhs, const QShaderGraph::Edge &rhs) noexcept +{ + return lhs.sourceNodeUuid == rhs.sourceNodeUuid + && lhs.sourcePortName == rhs.sourcePortName + && lhs.targetNodeUuid == rhs.targetNodeUuid + && lhs.targetPortName == rhs.targetPortName; +} + +bool operator==(const QShaderGraph::Statement &lhs, const QShaderGraph::Statement &rhs) noexcept +{ + return lhs.inputs == rhs.inputs + && lhs.outputs == rhs.outputs + && lhs.node.uuid() == rhs.node.uuid(); +} +} +QT_END_NAMESPACE diff --git a/src/render/shadergraph/qshadergraph_p.h b/src/render/shadergraph/qshadergraph_p.h new file mode 100644 index 000000000..de746f7b2 --- /dev/null +++ b/src/render/shadergraph/qshadergraph_p.h @@ -0,0 +1,126 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QT3DRENDER_QSHADERGRAPH_P_H +#define QT3DRENDER_QSHADERGRAPH_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <Qt3DRender/private/qt3drender_global_p.h> + +#include <Qt3DRender/private/qshadernode_p.h> + +QT_BEGIN_NAMESPACE + +namespace Qt3DRender +{ +class QShaderGraph +{ +public: + class Edge + { + public: + QStringList layers; + QUuid sourceNodeUuid; + QString sourcePortName; + QUuid targetNodeUuid; + QString targetPortName; + }; + + class Statement + { + public: + Q_3DRENDERSHARED_PRIVATE_EXPORT QUuid uuid() const noexcept; + Q_3DRENDERSHARED_PRIVATE_EXPORT int portIndex(QShaderNodePort::Direction direction, const QString &portName) const noexcept; + + QShaderNode node; + QVector<int> inputs; + QVector<int> outputs; + }; + + Q_3DRENDERSHARED_PRIVATE_EXPORT void addNode(const QShaderNode &node); + Q_3DRENDERSHARED_PRIVATE_EXPORT void removeNode(const QShaderNode &node); + Q_3DRENDERSHARED_PRIVATE_EXPORT QVector<QShaderNode> nodes() const noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT void addEdge(const Edge &edge); + Q_3DRENDERSHARED_PRIVATE_EXPORT void removeEdge(const Edge &edge); + Q_3DRENDERSHARED_PRIVATE_EXPORT QVector<Edge> edges() const noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT QVector<Statement> createStatements(const QStringList &enabledLayers = QStringList()) const; + +private: + QVector<QShaderNode> m_nodes; + QVector<Edge> m_edges; +}; + +Q_3DRENDERSHARED_PRIVATE_EXPORT bool operator==(const QShaderGraph::Edge &lhs, const QShaderGraph::Edge &rhs) noexcept; + +inline bool operator!=(const QShaderGraph::Edge &lhs, const QShaderGraph::Edge &rhs) noexcept +{ + return !(lhs == rhs); +} + +Q_3DRENDERSHARED_PRIVATE_EXPORT bool operator==(const QShaderGraph::Statement &lhs, const QShaderGraph::Statement &rhs) noexcept; + +inline bool operator!=(const QShaderGraph::Statement &lhs, const QShaderGraph::Statement &rhs) noexcept +{ + return !(lhs == rhs); +} + +} + +Q_DECLARE_TYPEINFO(Qt3DRender::QShaderGraph, Q_MOVABLE_TYPE); +Q_DECLARE_TYPEINFO(Qt3DRender::QShaderGraph::Edge, Q_MOVABLE_TYPE); +Q_DECLARE_TYPEINFO(Qt3DRender::QShaderGraph::Statement, Q_MOVABLE_TYPE); +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(Qt3DRender::QShaderGraph) +Q_DECLARE_METATYPE(Qt3DRender::QShaderGraph::Edge) +Q_DECLARE_METATYPE(Qt3DRender::QShaderGraph::Statement) + +#endif // QT3DRENDER_QSHADERGRAPH_P_H diff --git a/src/render/shadergraph/qshadergraphloader.cpp b/src/render/shadergraph/qshadergraphloader.cpp new file mode 100644 index 000000000..64f159e7b --- /dev/null +++ b/src/render/shadergraph/qshadergraphloader.cpp @@ -0,0 +1,271 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qshadergraphloader_p.h" + +#include "qshadernodesloader_p.h" + +#include <QtCore/qdebug.h> +#include <QtCore/qiodevice.h> +#include <QtCore/qjsonarray.h> +#include <QtCore/qjsondocument.h> +#include <QtCore/qjsonobject.h> +#include <QtCore/qmetaobject.h> + +QT_BEGIN_NAMESPACE + +namespace Qt3DRender +{ +void qt_register_ShaderLanguage_enums(); + +QShaderGraphLoader::QShaderGraphLoader() noexcept + : m_status(Null), + m_device(nullptr) +{ + qt_register_ShaderLanguage_enums(); +} + +QShaderGraphLoader::Status QShaderGraphLoader::status() const noexcept +{ + return m_status; +} + +QShaderGraph QShaderGraphLoader::graph() const noexcept +{ + return m_graph; +} + +QIODevice *QShaderGraphLoader::device() const noexcept +{ + return m_device; +} + +void QShaderGraphLoader::setDevice(QIODevice *device) noexcept +{ + m_device = device; + m_graph = QShaderGraph(); + m_status = !m_device ? Null + : (m_device->openMode() & QIODevice::ReadOnly) ? Waiting + : Error; +} + +QHash<QString, QShaderNode> QShaderGraphLoader::prototypes() const noexcept +{ + return m_prototypes; +} + +void QShaderGraphLoader::setPrototypes(const QHash<QString, QShaderNode> &prototypes) noexcept +{ + m_prototypes = prototypes; +} + +void QShaderGraphLoader::load() +{ + if (m_status == Error) + return; + + auto error = QJsonParseError(); + const QJsonDocument document = QJsonDocument::fromJson(m_device->readAll(), &error); + + if (error.error != QJsonParseError::NoError) { + qWarning() << "Invalid JSON document:" << error.errorString(); + m_status = Error; + return; + } + + if (document.isEmpty() || !document.isObject()) { + qWarning() << "Invalid JSON document, root should be an object"; + m_status = Error; + return; + } + + const QJsonObject root = document.object(); + + const QJsonValue nodesValue = root.value(QStringLiteral("nodes")); + if (!nodesValue.isArray()) { + qWarning() << "Invalid nodes property, should be an array"; + m_status = Error; + return; + } + + const QJsonValue edgesValue = root.value(QStringLiteral("edges")); + if (!edgesValue.isArray()) { + qWarning() << "Invalid edges property, should be an array"; + m_status = Error; + return; + } + + bool hasError = false; + + const QJsonValue prototypesValue = root.value(QStringLiteral("prototypes")); + if (!prototypesValue.isUndefined()) { + if (prototypesValue.isObject()) { + QShaderNodesLoader loader; + loader.load(prototypesValue.toObject()); + m_prototypes.insert(loader.nodes()); + } else { + qWarning() << "Invalid prototypes property, should be an object"; + m_status = Error; + return; + } + } + + const QJsonArray nodes = nodesValue.toArray(); + for (const QJsonValue &nodeValue : nodes) { + if (!nodeValue.isObject()) { + qWarning() << "Invalid node found"; + hasError = true; + continue; + } + + const QJsonObject nodeObject = nodeValue.toObject(); + + const QString uuidString = nodeObject.value(QStringLiteral("uuid")).toString(); + const QUuid uuid = QUuid(uuidString); + if (uuid.isNull()) { + qWarning() << "Invalid UUID found in node:" << uuidString; + hasError = true; + continue; + } + + const QString type = nodeObject.value(QStringLiteral("type")).toString(); + if (!m_prototypes.contains(type)) { + qWarning() << "Unsupported node type found:" << type; + hasError = true; + continue; + } + + const QJsonArray layersArray = nodeObject.value(QStringLiteral("layers")).toArray(); + auto layers = QStringList(); + for (const QJsonValue &layerValue : layersArray) { + layers.append(layerValue.toString()); + } + + QShaderNode node = m_prototypes.value(type); + node.setUuid(uuid); + node.setLayers(layers); + + const QJsonValue parametersValue = nodeObject.value(QStringLiteral("parameters")); + if (parametersValue.isObject()) { + const QJsonObject parametersObject = parametersValue.toObject(); + for (const QString ¶meterName : parametersObject.keys()) { + const QJsonValue parameterValue = parametersObject.value(parameterName); + if (parameterValue.isObject()) { + const QJsonObject parameterObject = parameterValue.toObject(); + const QString type = parameterObject.value(QStringLiteral("type")).toString(); + const int typeId = QMetaType::type(type.toUtf8()); + + const QString value = parameterObject.value(QStringLiteral("value")).toString(); + auto variant = QVariant(value); + + if (QMetaType::typeFlags(typeId) & QMetaType::IsEnumeration) { + const QMetaObject *metaObject = QMetaType::metaObjectForType(typeId); + const char *className = metaObject->className(); + const QByteArray enumName = type.mid(static_cast<int>(qstrlen(className)) + 2).toUtf8(); + const QMetaEnum metaEnum = metaObject->enumerator(metaObject->indexOfEnumerator(enumName)); + const int enumValue = metaEnum.keyToValue(value.toUtf8()); + variant = QVariant(enumValue); + variant.convert(typeId); + } else { + variant.convert(typeId); + } + node.setParameter(parameterName, variant); + } else { + node.setParameter(parameterName, parameterValue.toVariant()); + } + } + } + + m_graph.addNode(node); + } + + const QJsonArray edges = edgesValue.toArray(); + for (const QJsonValue &edgeValue : edges) { + if (!edgeValue.isObject()) { + qWarning() << "Invalid edge found"; + hasError = true; + continue; + } + + const QJsonObject edgeObject = edgeValue.toObject(); + + const QString sourceUuidString = edgeObject.value(QStringLiteral("sourceUuid")).toString(); + const QUuid sourceUuid = QUuid(sourceUuidString); + if (sourceUuid.isNull()) { + qWarning() << "Invalid source UUID found in edge:" << sourceUuidString; + hasError = true; + continue; + } + + const QString sourcePort = edgeObject.value(QStringLiteral("sourcePort")).toString(); + + const QString targetUuidString = edgeObject.value(QStringLiteral("targetUuid")).toString(); + const QUuid targetUuid = QUuid(targetUuidString); + if (targetUuid.isNull()) { + qWarning() << "Invalid target UUID found in edge:" << targetUuidString; + hasError = true; + continue; + } + + const QString targetPort = edgeObject.value(QStringLiteral("targetPort")).toString(); + + const QJsonArray layersArray = edgeObject.value(QStringLiteral("layers")).toArray(); + auto layers = QStringList(); + for (const QJsonValue &layerValue : layersArray) { + layers.append(layerValue.toString()); + } + + auto edge = QShaderGraph::Edge(); + edge.sourceNodeUuid = sourceUuid; + edge.sourcePortName = sourcePort; + edge.targetNodeUuid = targetUuid; + edge.targetPortName = targetPort; + edge.layers = layers; + m_graph.addEdge(edge); + } + + if (hasError) { + m_status = Error; + m_graph = QShaderGraph(); + } else { + m_status = Ready; + } +} +} +QT_END_NAMESPACE diff --git a/src/render/shadergraph/qshadergraphloader_p.h b/src/render/shadergraph/qshadergraphloader_p.h new file mode 100644 index 000000000..20589d724 --- /dev/null +++ b/src/render/shadergraph/qshadergraphloader_p.h @@ -0,0 +1,102 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QT3DRENDER_QSHADERGRAPHLOADER_P_H +#define QT3DRENDER_QSHADERGRAPHLOADER_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <Qt3DRender/private/qt3drender_global_p.h> + +#include <Qt3DRender/private/qshadergraph_p.h> + +QT_BEGIN_NAMESPACE + +class QIODevice; +namespace Qt3DRender +{ + +class QShaderGraphLoader +{ +public: + enum Status : char { + Null, + Waiting, + Ready, + Error + }; + + Q_3DRENDERSHARED_PRIVATE_EXPORT QShaderGraphLoader() noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT Status status() const noexcept; + Q_3DRENDERSHARED_PRIVATE_EXPORT QShaderGraph graph() const noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT QIODevice *device() const noexcept; + Q_3DRENDERSHARED_PRIVATE_EXPORT void setDevice(QIODevice *device) noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT QHash<QString, QShaderNode> prototypes() const noexcept; + Q_3DRENDERSHARED_PRIVATE_EXPORT void setPrototypes(const QHash<QString, QShaderNode> &prototypes) noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT void load(); + +private: + Status m_status; + QIODevice *m_device; + QHash<QString, QShaderNode> m_prototypes; + QShaderGraph m_graph; +}; + + +} +Q_DECLARE_TYPEINFO(Qt3DRender::QShaderGraphLoader, Q_MOVABLE_TYPE); +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(Qt3DRender::QShaderGraphLoader) +Q_DECLARE_METATYPE(Qt3DRender::QShaderGraphLoader::Status) + +#endif // QT3DRENDER_QSHADERGRAPHLOADER_P_H diff --git a/src/render/shadergraph/qshaderlanguage.cpp b/src/render/shadergraph/qshaderlanguage.cpp new file mode 100644 index 000000000..1630e3de8 --- /dev/null +++ b/src/render/shadergraph/qshaderlanguage.cpp @@ -0,0 +1,57 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qshaderlanguage_p.h" + +#include <QtCore/qcoreapplication.h> + +QT_BEGIN_NAMESPACE + +namespace Qt3DRender +{ +// Note: to be invoked explicitly. Relying for example on +// Q_COREAPP_STARTUP_FUNCTION would not be acceptable in static builds. +void qt_register_ShaderLanguage_enums() +{ + qRegisterMetaType<QShaderLanguage::StorageQualifier>(); + qRegisterMetaType<QShaderLanguage::VariableType>(); +} +} + +QT_END_NAMESPACE diff --git a/src/render/shadergraph/qshaderlanguage_p.h b/src/render/shadergraph/qshaderlanguage_p.h new file mode 100644 index 000000000..1a56d7476 --- /dev/null +++ b/src/render/shadergraph/qshaderlanguage_p.h @@ -0,0 +1,164 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QT3DRENDER_QSHADERLANGUAGE_P_H +#define QT3DRENDER_QSHADERLANGUAGE_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <Qt3DRender/private/qt3drender_global_p.h> + +#include <QtCore/qmetatype.h> + +QT_BEGIN_NAMESPACE + +namespace QShaderLanguage +{ + Q_NAMESPACE_EXPORT(Q_3DRENDERSHARED_PRIVATE_EXPORT) + + enum StorageQualifier : char { + Const = 1, + Input, + BuiltIn, + Output, + Uniform + }; + Q_ENUM_NS(StorageQualifier) + + enum VariableType : int { + Bool = 1, + Int, + Uint, + Float, + Double, + Vec2, + Vec3, + Vec4, + DVec2, + DVec3, + DVec4, + BVec2, + BVec3, + BVec4, + IVec2, + IVec3, + IVec4, + UVec2, + UVec3, + UVec4, + Mat2, + Mat3, + Mat4, + Mat2x2, + Mat2x3, + Mat2x4, + Mat3x2, + Mat3x3, + Mat3x4, + Mat4x2, + Mat4x3, + Mat4x4, + DMat2, + DMat3, + DMat4, + DMat2x2, + DMat2x3, + DMat2x4, + DMat3x2, + DMat3x3, + DMat3x4, + DMat4x2, + DMat4x3, + DMat4x4, + Sampler1D, + Sampler2D, + Sampler3D, + SamplerCube, + Sampler2DRect, + Sampler2DMs, + SamplerBuffer, + Sampler1DArray, + Sampler2DArray, + Sampler2DMsArray, + SamplerCubeArray, + Sampler1DShadow, + Sampler2DShadow, + Sampler2DRectShadow, + Sampler1DArrayShadow, + Sampler2DArrayShadow, + SamplerCubeShadow, + SamplerCubeArrayShadow, + ISampler1D, + ISampler2D, + ISampler3D, + ISamplerCube, + ISampler2DRect, + ISampler2DMs, + ISamplerBuffer, + ISampler1DArray, + ISampler2DArray, + ISampler2DMsArray, + ISamplerCubeArray, + USampler1D, + USampler2D, + USampler3D, + USamplerCube, + USampler2DRect, + USampler2DMs, + USamplerBuffer, + USampler1DArray, + USampler2DArray, + USampler2DMsArray, + USamplerCubeArray + }; + Q_ENUM_NS(VariableType) +} + +QT_END_NAMESPACE + +#endif // QT3DRENDER_QSHADERLANGUAGE_P_H diff --git a/src/render/shadergraph/qshadernode.cpp b/src/render/shadergraph/qshadernode.cpp new file mode 100644 index 000000000..e0421e006 --- /dev/null +++ b/src/render/shadergraph/qshadernode.cpp @@ -0,0 +1,174 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qshadernode_p.h" + +QT_BEGIN_NAMESPACE + +namespace Qt3DRender +{ +QShaderNode::Type QShaderNode::type() const noexcept +{ + int inputCount = 0; + int outputCount = 0; + for (const auto &port : qAsConst(m_ports)) { + switch (port.direction) { + case QShaderNodePort::Input: + inputCount++; + break; + case QShaderNodePort::Output: + outputCount++; + break; + } + } + + return (inputCount == 0 && outputCount == 0) ? Invalid + : (inputCount > 0 && outputCount == 0) ? Output + : (inputCount == 0 && outputCount > 0) ? Input + : Function; +} + +QUuid QShaderNode::uuid() const noexcept +{ + return m_uuid; +} + +void QShaderNode::setUuid(const QUuid &uuid) noexcept +{ + m_uuid = uuid; +} + +QStringList QShaderNode::layers() const noexcept +{ + return m_layers; +} + +void QShaderNode::setLayers(const QStringList &layers) noexcept +{ + m_layers = layers; +} + +QVector<QShaderNodePort> QShaderNode::ports() const noexcept +{ + return m_ports; +} + +void QShaderNode::addPort(const QShaderNodePort &port) +{ + removePort(port); + m_ports.append(port); +} + +void QShaderNode::removePort(const QShaderNodePort &port) +{ + const auto it = std::find_if(m_ports.begin(), m_ports.end(), + [port](const QShaderNodePort &p) { + return p.name == port.name; + }); + if (it != m_ports.end()) + m_ports.erase(it); +} + +QStringList QShaderNode::parameterNames() const +{ + return m_parameters.keys(); +} + +QVariant QShaderNode::parameter(const QString &name) const +{ + return m_parameters.value(name); +} + +void QShaderNode::setParameter(const QString &name, const QVariant &value) +{ + m_parameters.insert(name, value); +} + +void QShaderNode::clearParameter(const QString &name) +{ + m_parameters.remove(name); +} + +void QShaderNode::addRule(const QShaderFormat &format, const QShaderNode::Rule &rule) +{ + removeRule(format); + m_rules << qMakePair(format, rule); +} + +void QShaderNode::removeRule(const QShaderFormat &format) +{ + const auto it = std::find_if(m_rules.begin(), m_rules.end(), + [format](const QPair<QShaderFormat, Rule> &entry) { + return entry.first == format; + }); + if (it != m_rules.end()) + m_rules.erase(it); +} + +QVector<QShaderFormat> QShaderNode::availableFormats() const +{ + auto res = QVector<QShaderFormat>(); + std::transform(m_rules.cbegin(), m_rules.cend(), + std::back_inserter(res), + [](const QPair<QShaderFormat, Rule> &entry) { return entry.first; }); + return res; +} + +QShaderNode::Rule QShaderNode::rule(const QShaderFormat &format) const +{ + const auto it = std::find_if(m_rules.crbegin(), m_rules.crend(), + [format](const QPair<QShaderFormat, Rule> &entry) { + return format.supports(entry.first); + }); + return it != m_rules.crend() ? it->second : Rule(); +} + +QShaderNode::Rule::Rule(const QByteArray &subs, const QByteArrayList &snippets) noexcept + : substitution(subs), + headerSnippets(snippets) +{ +} + +bool operator==(const QShaderNode::Rule &lhs, const QShaderNode::Rule &rhs) noexcept +{ + return lhs.substitution == rhs.substitution + && lhs.headerSnippets == rhs.headerSnippets; +} +} +QT_END_NAMESPACE diff --git a/src/render/shadergraph/qshadernode_p.h b/src/render/shadergraph/qshadernode_p.h new file mode 100644 index 000000000..92e0e8e14 --- /dev/null +++ b/src/render/shadergraph/qshadernode_p.h @@ -0,0 +1,131 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QT3DRENDER_QSHADERNODE_P_H +#define QT3DRENDER_QSHADERNODE_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <Qt3DRender/private/qt3drender_global_p.h> + +#include <Qt3DRender/private/qshaderformat_p.h> +#include <Qt3DRender/private/qshadernodeport_p.h> + +#include <QtCore/quuid.h> + +QT_BEGIN_NAMESPACE + +namespace Qt3DRender +{ +class QShaderNode +{ +public: + enum Type : char { + Invalid, + Input, + Output, + Function + }; + + class Rule + { + public: + Q_3DRENDERSHARED_PRIVATE_EXPORT Rule(const QByteArray &substitution = QByteArray(), const QByteArrayList &headerSnippets = QByteArrayList()) noexcept; + + QByteArray substitution; + QByteArrayList headerSnippets; + }; + + Q_3DRENDERSHARED_PRIVATE_EXPORT Type type() const noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT QUuid uuid() const noexcept; + Q_3DRENDERSHARED_PRIVATE_EXPORT void setUuid(const QUuid &uuid) noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT QStringList layers() const noexcept; + Q_3DRENDERSHARED_PRIVATE_EXPORT void setLayers(const QStringList &layers) noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT QVector<QShaderNodePort> ports() const noexcept; + Q_3DRENDERSHARED_PRIVATE_EXPORT void addPort(const QShaderNodePort &port); + Q_3DRENDERSHARED_PRIVATE_EXPORT void removePort(const QShaderNodePort &port); + + Q_3DRENDERSHARED_PRIVATE_EXPORT QStringList parameterNames() const; + Q_3DRENDERSHARED_PRIVATE_EXPORT QVariant parameter(const QString &name) const; + Q_3DRENDERSHARED_PRIVATE_EXPORT void setParameter(const QString &name, const QVariant &value); + Q_3DRENDERSHARED_PRIVATE_EXPORT void clearParameter(const QString &name); + + Q_3DRENDERSHARED_PRIVATE_EXPORT void addRule(const QShaderFormat &format, const Rule &rule); + Q_3DRENDERSHARED_PRIVATE_EXPORT void removeRule(const QShaderFormat &format); + + Q_3DRENDERSHARED_PRIVATE_EXPORT QVector<QShaderFormat> availableFormats() const; + Q_3DRENDERSHARED_PRIVATE_EXPORT Rule rule(const QShaderFormat &format) const; + +private: + QUuid m_uuid; + QStringList m_layers; + QVector<QShaderNodePort> m_ports; + QHash<QString, QVariant> m_parameters; + QVector<QPair<QShaderFormat, QShaderNode::Rule>> m_rules; +}; + +Q_3DRENDERSHARED_PRIVATE_EXPORT bool operator==(const QShaderNode::Rule &lhs, const QShaderNode::Rule &rhs) noexcept; + +inline bool operator!=(const QShaderNode::Rule &lhs, const QShaderNode::Rule &rhs) noexcept +{ + return !(lhs == rhs); +} + +} + +Q_DECLARE_TYPEINFO(Qt3DRender::QShaderNode, Q_MOVABLE_TYPE); +Q_DECLARE_TYPEINFO(Qt3DRender::QShaderNode::Rule, Q_MOVABLE_TYPE); +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(Qt3DRender::QShaderNode) +Q_DECLARE_METATYPE(Qt3DRender::QShaderNode::Rule) + +#endif // QT3DRENDER_QSHADERNODE_P_H diff --git a/src/render/shadergraph/qshadernodeport.cpp b/src/render/shadergraph/qshadernodeport.cpp new file mode 100644 index 000000000..a79c32234 --- /dev/null +++ b/src/render/shadergraph/qshadernodeport.cpp @@ -0,0 +1,58 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qshadernodeport_p.h" + +QT_BEGIN_NAMESPACE + +namespace Qt3DRender +{ +QShaderNodePort::QShaderNodePort() noexcept + : direction(Output) +{ +} + +bool operator==(const QShaderNodePort &lhs, const QShaderNodePort &rhs) noexcept +{ + return lhs.direction == rhs.direction + && lhs.name == rhs.name; +} +} + +QT_END_NAMESPACE diff --git a/src/render/shadergraph/qshadernodeport_p.h b/src/render/shadergraph/qshadernodeport_p.h new file mode 100644 index 000000000..d83cdb8c4 --- /dev/null +++ b/src/render/shadergraph/qshadernodeport_p.h @@ -0,0 +1,91 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QT3DRENDER_QSHADERNODEPORT_P_H +#define QT3DRENDER_QSHADERNODEPORT_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <Qt3DRender/private/qt3drender_global_p.h> + +#include <QtCore/qstring.h> +#include <QtCore/qvariant.h> + +QT_BEGIN_NAMESPACE + +namespace Qt3DRender +{ +class QShaderNodePort +{ +public: + enum Direction : char { + Input, + Output + }; + + Q_3DRENDERSHARED_PRIVATE_EXPORT QShaderNodePort() noexcept; + + QShaderNodePort::Direction direction; + QString name; +}; + +Q_3DRENDERSHARED_PRIVATE_EXPORT bool operator==(const QShaderNodePort &lhs, const QShaderNodePort &rhs) noexcept; + +inline bool operator!=(const QShaderNodePort &lhs, const QShaderNodePort &rhs) noexcept +{ + return !(lhs == rhs); +} + + +} +Q_DECLARE_TYPEINFO(Qt3DRender::QShaderNodePort, Q_MOVABLE_TYPE); +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(Qt3DRender::QShaderNodePort) + +#endif // QT3DRENDER_QSHADERNODEPORT_P_H diff --git a/src/render/shadergraph/qshadernodesloader.cpp b/src/render/shadergraph/qshadernodesloader.cpp new file mode 100644 index 000000000..8346ed3d5 --- /dev/null +++ b/src/render/shadergraph/qshadernodesloader.cpp @@ -0,0 +1,292 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qshadernodesloader_p.h" + +#include <QtCore/qdebug.h> +#include <QtCore/qiodevice.h> +#include <QtCore/qjsonarray.h> +#include <QtCore/qjsondocument.h> +#include <QtCore/qjsonobject.h> +#include <QtCore/qmetaobject.h> + +QT_BEGIN_NAMESPACE + +namespace Qt3DRender +{ +QShaderNodesLoader::QShaderNodesLoader() noexcept + : m_status(Null), + m_device(nullptr) +{ +} + +QShaderNodesLoader::Status QShaderNodesLoader::status() const noexcept +{ + return m_status; +} + +QHash<QString, QShaderNode> QShaderNodesLoader::nodes() const noexcept +{ + return m_nodes; +} + +QIODevice *QShaderNodesLoader::device() const noexcept +{ + return m_device; +} + +void QShaderNodesLoader::setDevice(QIODevice *device) noexcept +{ + m_device = device; + m_nodes.clear(); + m_status = !m_device ? Null + : (m_device->openMode() & QIODevice::ReadOnly) ? Waiting + : Error; +} + +void QShaderNodesLoader::load() +{ + if (m_status == Error) + return; + + auto error = QJsonParseError(); + const QJsonDocument document = QJsonDocument::fromJson(m_device->readAll(), &error); + + if (error.error != QJsonParseError::NoError) { + qWarning() << "Invalid JSON document:" << error.errorString(); + m_status = Error; + return; + } + + if (document.isEmpty() || !document.isObject()) { + qWarning() << "Invalid JSON document, root should be an object"; + m_status = Error; + return; + } + + const QJsonObject root = document.object(); + load(root); +} + +void QShaderNodesLoader::load(const QJsonObject &prototypesObject) +{ + bool hasError = false; + + for (const QString &property : prototypesObject.keys()) { + const QJsonValue nodeValue = prototypesObject.value(property); + if (!nodeValue.isObject()) { + qWarning() << "Invalid node found"; + hasError = true; + break; + } + + const QJsonObject nodeObject = nodeValue.toObject(); + + auto node = QShaderNode(); + + const QJsonValue inputsValue = nodeObject.value(QStringLiteral("inputs")); + if (inputsValue.isArray()) { + const QJsonArray inputsArray = inputsValue.toArray(); + for (const QJsonValue &inputValue : inputsArray) { + if (!inputValue.isString()) { + qWarning() << "Non-string value in inputs"; + hasError = true; + break; + } + + auto input = QShaderNodePort(); + input.direction = QShaderNodePort::Input; + input.name = inputValue.toString(); + node.addPort(input); + } + } + + const QJsonValue outputsValue = nodeObject.value(QStringLiteral("outputs")); + if (outputsValue.isArray()) { + const QJsonArray outputsArray = outputsValue.toArray(); + for (const QJsonValue &outputValue : outputsArray) { + if (!outputValue.isString()) { + qWarning() << "Non-string value in outputs"; + hasError = true; + break; + } + + auto output = QShaderNodePort(); + output.direction = QShaderNodePort::Output; + output.name = outputValue.toString(); + node.addPort(output); + } + } + + const QJsonValue parametersValue = nodeObject.value(QStringLiteral("parameters")); + if (parametersValue.isObject()) { + const QJsonObject parametersObject = parametersValue.toObject(); + for (const QString ¶meterName : parametersObject.keys()) { + const QJsonValue parameterValue = parametersObject.value(parameterName); + if (parameterValue.isObject()) { + const QJsonObject parameterObject = parameterValue.toObject(); + const QString type = parameterObject.value(QStringLiteral("type")).toString(); + const int typeId = QMetaType::type(type.toUtf8()); + + const QString value = parameterObject.value(QStringLiteral("value")).toString(); + auto variant = QVariant(value); + + if (QMetaType::typeFlags(typeId) & QMetaType::IsEnumeration) { + const QMetaObject *metaObject = QMetaType::metaObjectForType(typeId); + const char *className = metaObject->className(); + const QByteArray enumName = type.mid(static_cast<int>(qstrlen(className)) + 2).toUtf8(); + const QMetaEnum metaEnum = metaObject->enumerator(metaObject->indexOfEnumerator(enumName)); + const int enumValue = metaEnum.keyToValue(value.toUtf8()); + variant = QVariant(enumValue); + variant.convert(typeId); + } else { + variant.convert(typeId); + } + node.setParameter(parameterName, variant); + } else { + node.setParameter(parameterName, parameterValue.toVariant()); + } + } + } + + const QJsonValue rulesValue = nodeObject.value(QStringLiteral("rules")); + if (rulesValue.isArray()) { + const QJsonArray rulesArray = rulesValue.toArray(); + for (const QJsonValue &ruleValue : rulesArray) { + if (!ruleValue.isObject()) { + qWarning() << "Rules should be objects"; + hasError = true; + break; + } + + const QJsonObject ruleObject = ruleValue.toObject(); + + const QJsonValue formatValue = ruleObject.value(QStringLiteral("format")); + if (!formatValue.isObject()) { + qWarning() << "Format is mandatory in rules and should be an object"; + hasError = true; + break; + } + + const QJsonObject formatObject = formatValue.toObject(); + auto format = QShaderFormat(); + + const QJsonValue apiValue = formatObject.value(QStringLiteral("api")); + if (!apiValue.isString()) { + qWarning() << "Format API must be a string"; + hasError = true; + break; + } + + const QString api = apiValue.toString(); + format.setApi(api == QStringLiteral("OpenGLES") ? QShaderFormat::OpenGLES + : api == QStringLiteral("OpenGLNoProfile") ? QShaderFormat::OpenGLNoProfile + : api == QStringLiteral("OpenGLCoreProfile") ? QShaderFormat::OpenGLCoreProfile + : api == QStringLiteral("OpenGLCompatibilityProfile") ? QShaderFormat::OpenGLCompatibilityProfile + : api == QStringLiteral("VulkanFlavoredGLSL") ? QShaderFormat::VulkanFlavoredGLSL + : QShaderFormat::NoApi); + if (format.api() == QShaderFormat::NoApi) { + qWarning() << "Format API must be one of: OpenGLES, OpenGLNoProfile, OpenGLCoreProfile or OpenGLCompatibilityProfile, VulkanFlavoredGLSL"; + hasError = true; + break; + } + + const QJsonValue majorValue = formatObject.value(QStringLiteral("major")); + const QJsonValue minorValue = formatObject.value(QStringLiteral("minor")); + if (!majorValue.isDouble() || !minorValue.isDouble()) { + qWarning() << "Format major and minor version must be values"; + hasError = true; + break; + } + format.setVersion(QVersionNumber(majorValue.toInt(), minorValue.toInt())); + + const QJsonValue extensionsValue = formatObject.value(QStringLiteral("extensions")); + const QJsonArray extensionsArray = extensionsValue.toArray(); + auto extensions = QStringList(); + std::transform(extensionsArray.constBegin(), extensionsArray.constEnd(), + std::back_inserter(extensions), + [] (const QJsonValue &extensionValue) { return extensionValue.toString(); }); + format.setExtensions(extensions); + + const QString vendor = formatObject.value(QStringLiteral("vendor")).toString(); + format.setVendor(vendor); + + const QJsonValue substitutionValue = ruleObject.value(QStringLiteral("substitution")); + if (!substitutionValue.isString()) { + qWarning() << "Substitution needs to be a string"; + hasError = true; + break; + } + + // We default out to a Fragment ShaderType if nothing is specified + // as that was the initial behavior we introduced + const QString shaderType = formatObject.value(QStringLiteral("shaderType")).toString(); + format.setShaderType(shaderType == QStringLiteral("Fragment") ? QShaderFormat::Fragment + : shaderType == QStringLiteral("Vertex") ? QShaderFormat::Vertex + : shaderType == QStringLiteral("TessellationControl") ? QShaderFormat::TessellationControl + : shaderType == QStringLiteral("TessellationEvaluation") ? QShaderFormat::TessellationEvaluation + : shaderType == QStringLiteral("Geometry") ? QShaderFormat::Geometry + : shaderType == QStringLiteral("Compute") ? QShaderFormat::Compute + : QShaderFormat::Fragment); + + const QByteArray substitution = substitutionValue.toString().toUtf8(); + + const QJsonValue snippetsValue = ruleObject.value(QStringLiteral("headerSnippets")); + const QJsonArray snippetsArray = snippetsValue.toArray(); + auto snippets = QByteArrayList(); + std::transform(snippetsArray.constBegin(), snippetsArray.constEnd(), + std::back_inserter(snippets), + [] (const QJsonValue &snippetValue) { return snippetValue.toString().toUtf8(); }); + + node.addRule(format, QShaderNode::Rule(substitution, snippets)); + } + } + + m_nodes.insert(property, node); + } + + if (hasError) { + m_status = Error; + m_nodes.clear(); + } else { + m_status = Ready; + } +} +} +QT_END_NAMESPACE diff --git a/src/render/shadergraph/qshadernodesloader_p.h b/src/render/shadergraph/qshadernodesloader_p.h new file mode 100644 index 000000000..80d75a0bc --- /dev/null +++ b/src/render/shadergraph/qshadernodesloader_p.h @@ -0,0 +1,99 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QT3DRENDER_QSHADERNODESLOADER_P_H +#define QT3DRENDER_QSHADERNODESLOADER_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <Qt3DRender/private/qt3drender_global_p.h> + +#include <Qt3DRender/private/qshadergraph_p.h> + +QT_BEGIN_NAMESPACE + +class QIODevice; + +namespace Qt3DRender +{ +class QShaderNodesLoader +{ +public: + enum Status : char { + Null, + Waiting, + Ready, + Error + }; + + Q_3DRENDERSHARED_PRIVATE_EXPORT QShaderNodesLoader() noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT Status status() const noexcept; + Q_3DRENDERSHARED_PRIVATE_EXPORT QHash<QString, QShaderNode> nodes() const noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT QIODevice *device() const noexcept; + Q_3DRENDERSHARED_PRIVATE_EXPORT void setDevice(QIODevice *device) noexcept; + + Q_3DRENDERSHARED_PRIVATE_EXPORT void load(); + Q_3DRENDERSHARED_PRIVATE_EXPORT void load(const QJsonObject &prototypesObject); + +private: + Status m_status; + QIODevice *m_device; + QHash<QString, QShaderNode> m_nodes; +}; + + +} +Q_DECLARE_TYPEINFO(Qt3DRender::QShaderNodesLoader, Q_MOVABLE_TYPE); +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(Qt3DRender::QShaderNodesLoader) +Q_DECLARE_METATYPE(Qt3DRender::QShaderNodesLoader::Status) + +#endif // QT3DRENDER_QSHADERNODESLOADER_P_H diff --git a/src/render/shadergraph/shadergraph.pri b/src/render/shadergraph/shadergraph.pri new file mode 100644 index 000000000..27bb8c6e9 --- /dev/null +++ b/src/render/shadergraph/shadergraph.pri @@ -0,0 +1,21 @@ +INCLUDEPATH += $$PWD + +HEADERS += \ + $$PWD/qshaderformat_p.h \ + $$PWD/qshadergenerator_p.h \ + $$PWD/qshadergraphloader_p.h \ + $$PWD/qshadergraph_p.h \ + $$PWD/qshaderlanguage_p.h \ + $$PWD/qshadernode_p.h \ + $$PWD/qshadernodeport_p.h \ + $$PWD/qshadernodesloader_p.h + +SOURCES += \ + $$PWD/qshaderformat.cpp \ + $$PWD/qshadergenerator.cpp \ + $$PWD/qshadergraph.cpp \ + $$PWD/qshadergraphloader.cpp \ + $$PWD/qshaderlanguage.cpp \ + $$PWD/qshadernode.cpp \ + $$PWD/qshadernodeport.cpp \ + $$PWD/qshadernodesloader.cpp |