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Diffstat (limited to 'src/plugins/renderers/opengl/renderer/renderview.cpp')
| -rw-r--r-- | src/plugins/renderers/opengl/renderer/renderview.cpp | 1240 |
1 files changed, 1240 insertions, 0 deletions
diff --git a/src/plugins/renderers/opengl/renderer/renderview.cpp b/src/plugins/renderers/opengl/renderer/renderview.cpp new file mode 100644 index 000000000..f18f1a06a --- /dev/null +++ b/src/plugins/renderers/opengl/renderer/renderview.cpp @@ -0,0 +1,1240 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB). +** Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the Qt3D 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 "renderview_p.h" +#include <Qt3DRender/qmaterial.h> +#include <Qt3DRender/qrenderaspect.h> +#include <Qt3DRender/qrendertarget.h> +#include <Qt3DRender/qabstractlight.h> +#include <Qt3DRender/private/sphere_p.h> + +#include <Qt3DRender/private/cameraselectornode_p.h> +#include <Qt3DRender/private/framegraphnode_p.h> +#include <Qt3DRender/private/layerfilternode_p.h> +#include <Qt3DRender/private/qparameter_p.h> +#include <Qt3DRender/private/cameralens_p.h> +#include <Qt3DRender/private/effect_p.h> +#include <Qt3DRender/private/entity_p.h> +#include <Qt3DRender/private/nodemanagers_p.h> +#include <Qt3DRender/private/layer_p.h> +#include <Qt3DRender/private/renderlogging_p.h> +#include <Qt3DRender/private/renderpassfilternode_p.h> +#include <Qt3DRender/private/renderpass_p.h> +#include <Qt3DRender/private/geometryrenderer_p.h> +#include <Qt3DRender/private/techniquefilternode_p.h> +#include <Qt3DRender/private/viewportnode_p.h> +#include <Qt3DRender/private/buffermanager_p.h> +#include <Qt3DRender/private/geometryrenderermanager_p.h> +#include <Qt3DRender/private/rendercapture_p.h> +#include <Qt3DRender/private/buffercapture_p.h> +#include <Qt3DRender/private/stringtoint_p.h> +#include <Qt3DRender/private/renderlogging_p.h> +#include <Qt3DRender/private/renderstateset_p.h> +#include <rendercommand_p.h> +#include <renderer_p.h> +#include <graphicscontext_p.h> +#include <submissioncontext_p.h> +#include <glresourcemanagers_p.h> +#include <Qt3DCore/qentity.h> +#include <QtGui/qsurface.h> +#include <algorithm> + +#include <QDebug> +#if defined(QT3D_RENDER_VIEW_JOB_TIMINGS) +#include <QElapsedTimer> +#endif + +QT_BEGIN_NAMESPACE + +namespace Qt3DRender { +namespace Render { +namespace OpenGL { + + +namespace { + +// register our QNodeId's as a metatype during program loading +const int Q_DECL_UNUSED qNodeIdTypeId = qMetaTypeId<Qt3DCore::QNodeId>(); + +const int MAX_LIGHTS = 8; + +#define LIGHT_POSITION_NAME QLatin1String(".position") +#define LIGHT_TYPE_NAME QLatin1String(".type") +#define LIGHT_COLOR_NAME QLatin1String(".color") +#define LIGHT_INTENSITY_NAME QLatin1String(".intensity") + +int LIGHT_COUNT_NAME_ID = 0; +int LIGHT_POSITION_NAMES[MAX_LIGHTS]; +int LIGHT_TYPE_NAMES[MAX_LIGHTS]; +int LIGHT_COLOR_NAMES[MAX_LIGHTS]; +int LIGHT_INTENSITY_NAMES[MAX_LIGHTS]; +QString LIGHT_STRUCT_NAMES[MAX_LIGHTS]; + +int LIGHT_POSITION_UNROLL_NAMES[MAX_LIGHTS]; +int LIGHT_TYPE_UNROLL_NAMES[MAX_LIGHTS]; +int LIGHT_COLOR_UNROLL_NAMES[MAX_LIGHTS]; +int LIGHT_INTENSITY_UNROLL_NAMES[MAX_LIGHTS]; +QString LIGHT_STRUCT_UNROLL_NAMES[MAX_LIGHTS]; + +bool wasInitialized = false; + +} // anonymous namespace + +RenderView::StandardUniformsNameToTypeHash RenderView::ms_standardUniformSetters; + + +RenderView::StandardUniformsNameToTypeHash RenderView::initializeStandardUniformSetters() +{ + RenderView::StandardUniformsNameToTypeHash setters; + + setters.insert(Shader::modelMatrixNameId, ModelMatrix); + setters.insert(Shader::viewMatrixNameId, ViewMatrix); + setters.insert(Shader::projectionMatrixNameId, ProjectionMatrix); + setters.insert(Shader::modelViewMatrixNameId, ModelViewMatrix); + setters.insert(Shader::viewProjectionMatrixNameId, ViewProjectionMatrix); + setters.insert(Shader::modelViewProjectionNameId, ModelViewProjectionMatrix); + setters.insert(Shader::mvpNameId, ModelViewProjectionMatrix); + setters.insert(Shader::inverseModelMatrixNameId, InverseModelMatrix); + setters.insert(Shader::inverseViewMatrixNameId, InverseViewMatrix); + setters.insert(Shader::inverseProjectionMatrixNameId, InverseProjectionMatrix); + setters.insert(Shader::inverseModelViewNameId, InverseModelViewMatrix); + setters.insert(Shader::inverseViewProjectionMatrixNameId, InverseViewProjectionMatrix); + setters.insert(Shader::inverseModelViewProjectionNameId, InverseModelViewProjectionMatrix); + setters.insert(Shader::modelNormalMatrixNameId, ModelNormalMatrix); + setters.insert(Shader::modelViewNormalNameId, ModelViewNormalMatrix); + setters.insert(Shader::viewportMatrixNameId, ViewportMatrix); + setters.insert(Shader::inverseViewportMatrixNameId, InverseViewportMatrix); + setters.insert(Shader::aspectRatioNameId, AspectRatio); + setters.insert(Shader::exposureNameId, Exposure); + setters.insert(Shader::gammaNameId, Gamma); + setters.insert(Shader::timeNameId, Time); + setters.insert(Shader::eyePositionNameId, EyePosition); + setters.insert(Shader::skinningPaletteNameId, SkinningPalette); + + return setters; +} + +// TODO: Move this somewhere global where GraphicsContext::setViewport() can use it too +static QRectF resolveViewport(const QRectF &fractionalViewport, const QSize &surfaceSize) +{ + return QRectF(fractionalViewport.x() * surfaceSize.width(), + (1.0 - fractionalViewport.y() - fractionalViewport.height()) * surfaceSize.height(), + fractionalViewport.width() * surfaceSize.width(), + fractionalViewport.height() * surfaceSize.height()); +} + +static Matrix4x4 getProjectionMatrix(const CameraLens *lens) +{ + if (!lens) + qWarning() << "[Qt3D Renderer] No Camera Lens found. Add a CameraSelector to your Frame Graph or make sure that no entities will be rendered."; + return lens ? lens->projection() : Matrix4x4(); +} + +UniformValue RenderView::standardUniformValue(RenderView::StandardUniform standardUniformType, + Entity *entity, + const Matrix4x4 &model) const +{ + switch (standardUniformType) { + case ModelMatrix: + return UniformValue(model); + case ViewMatrix: + return UniformValue(m_data.m_viewMatrix); + case ProjectionMatrix: + return UniformValue(getProjectionMatrix(m_data.m_renderCameraLens)); + case ModelViewMatrix: + return UniformValue(m_data.m_viewMatrix * model); + case ViewProjectionMatrix: + return UniformValue(getProjectionMatrix(m_data.m_renderCameraLens) * m_data.m_viewMatrix); + case ModelViewProjectionMatrix: + return UniformValue(m_data.m_viewProjectionMatrix * model); + case InverseModelMatrix: + return UniformValue(model.inverted()); + case InverseViewMatrix: + return UniformValue(m_data.m_viewMatrix.inverted()); + case InverseProjectionMatrix: { + return UniformValue(getProjectionMatrix(m_data.m_renderCameraLens).inverted()); + } + case InverseModelViewMatrix: + return UniformValue((m_data.m_viewMatrix * model).inverted()); + case InverseViewProjectionMatrix: { + const Matrix4x4 viewProjectionMatrix = getProjectionMatrix(m_data.m_renderCameraLens) * m_data.m_viewMatrix; + return UniformValue(viewProjectionMatrix.inverted()); + } + case InverseModelViewProjectionMatrix: + return UniformValue((m_data.m_viewProjectionMatrix * model).inverted()); + case ModelNormalMatrix: + return UniformValue(convertToQMatrix4x4(model).normalMatrix()); + case ModelViewNormalMatrix: + return UniformValue(convertToQMatrix4x4(m_data.m_viewMatrix * model).normalMatrix()); + case ViewportMatrix: { + QMatrix4x4 viewportMatrix; + // TO DO: Implement on Matrix4x4 + viewportMatrix.viewport(resolveViewport(m_viewport, m_surfaceSize)); + return UniformValue(Matrix4x4(viewportMatrix)); + } + case InverseViewportMatrix: { + QMatrix4x4 viewportMatrix; + // TO DO: Implement on Matrix4x4 + viewportMatrix.viewport(resolveViewport(m_viewport, m_surfaceSize)); + return UniformValue(Matrix4x4(viewportMatrix.inverted())); + } + case AspectRatio: + return float(m_surfaceSize.width()) / std::max(1.f, float(m_surfaceSize.height())); + case Exposure: + return UniformValue(m_data.m_renderCameraLens ? m_data.m_renderCameraLens->exposure() : 0.0f); + case Gamma: + return UniformValue(m_gamma); + case Time: + return UniformValue(float(m_renderer->time() / 1000000000.0f)); + case EyePosition: + return UniformValue(m_data.m_eyePos); + case SkinningPalette: { + const Armature *armature = entity->renderComponent<Armature>(); + if (!armature) { + qCWarning(Jobs, "Requesting skinningPalette uniform but no armature set on entity"); + return UniformValue(); + } + return armature->skinningPaletteUniform(); + } + default: + Q_UNREACHABLE(); + return UniformValue(); + } +} + +RenderView::RenderView() + : m_isDownloadBuffersEnable(false) + , m_hasBlitFramebufferInfo(false) + , m_renderer(nullptr) + , m_manager(nullptr) + , m_devicePixelRatio(1.) + , m_viewport(QRectF(0., 0., 1., 1.)) + , m_gamma(2.2f) + , m_surface(nullptr) + , m_clearBuffer(QClearBuffers::None) + , m_clearDepthValue(1.f) + , m_clearStencilValue(0) + , m_stateSet(nullptr) + , m_noDraw(false) + , m_compute(false) + , m_frustumCulling(false) + , m_showDebugOverlay(false) + , m_memoryBarrier(QMemoryBarrier::None) + , m_environmentLight(nullptr) +{ + m_workGroups[0] = 1; + m_workGroups[1] = 1; + m_workGroups[2] = 1; + + if (Q_UNLIKELY(!wasInitialized)) { + // Needed as we can control the init order of static/global variables across compile units + // and this hash relies on the static StringToInt class + wasInitialized = true; + RenderView::ms_standardUniformSetters = RenderView::initializeStandardUniformSetters(); + LIGHT_COUNT_NAME_ID = StringToInt::lookupId(QLatin1String("lightCount")); + for (int i = 0; i < MAX_LIGHTS; ++i) { + Q_STATIC_ASSERT_X(MAX_LIGHTS < 10, "can't use the QChar trick anymore"); + LIGHT_STRUCT_NAMES[i] = QLatin1String("lights[") + QLatin1Char(char('0' + i)) + QLatin1Char(']'); + LIGHT_POSITION_NAMES[i] = StringToInt::lookupId(LIGHT_STRUCT_NAMES[i] + LIGHT_POSITION_NAME); + LIGHT_TYPE_NAMES[i] = StringToInt::lookupId(LIGHT_STRUCT_NAMES[i] + LIGHT_TYPE_NAME); + LIGHT_COLOR_NAMES[i] = StringToInt::lookupId(LIGHT_STRUCT_NAMES[i] + LIGHT_COLOR_NAME); + LIGHT_INTENSITY_NAMES[i] = StringToInt::lookupId(LIGHT_STRUCT_NAMES[i] + LIGHT_INTENSITY_NAME); + + LIGHT_STRUCT_UNROLL_NAMES[i] = QLatin1String("light_") + QLatin1Char(char('0' + i)); + LIGHT_POSITION_UNROLL_NAMES[i] = StringToInt::lookupId(LIGHT_STRUCT_UNROLL_NAMES[i] + LIGHT_POSITION_NAME); + LIGHT_TYPE_UNROLL_NAMES[i] = StringToInt::lookupId(LIGHT_STRUCT_UNROLL_NAMES[i] + LIGHT_TYPE_NAME); + LIGHT_COLOR_UNROLL_NAMES[i] = StringToInt::lookupId(LIGHT_STRUCT_UNROLL_NAMES[i] + LIGHT_COLOR_NAME); + LIGHT_INTENSITY_UNROLL_NAMES[i] = StringToInt::lookupId(LIGHT_STRUCT_UNROLL_NAMES[i] + LIGHT_INTENSITY_NAME); + } + } +} + +RenderView::~RenderView() +{ + delete m_stateSet; +} + +namespace { + +template<int SortType> +struct AdjacentSubRangeFinder +{ + static bool adjacentSubRange(const RenderCommand &, const RenderCommand &) + { + Q_UNREACHABLE(); + return false; + } +}; + +template<> +struct AdjacentSubRangeFinder<QSortPolicy::StateChangeCost> +{ + static bool adjacentSubRange(const RenderCommand &a, const RenderCommand &b) + { + return a.m_changeCost == b.m_changeCost; + } +}; + +template<> +struct AdjacentSubRangeFinder<QSortPolicy::BackToFront> +{ + static bool adjacentSubRange(const RenderCommand &a, const RenderCommand &b) + { + return a.m_depth == b.m_depth; + } +}; + +template<> +struct AdjacentSubRangeFinder<QSortPolicy::Material> +{ + static bool adjacentSubRange(const RenderCommand &a, const RenderCommand &b) + { + return a.m_glShader == b.m_glShader; + } +}; + +template<> +struct AdjacentSubRangeFinder<QSortPolicy::FrontToBack> +{ + static bool adjacentSubRange(const RenderCommand &a, const RenderCommand &b) + { + return a.m_depth == b.m_depth; + } +}; + +template<> +struct AdjacentSubRangeFinder<QSortPolicy::Texture> +{ + static bool adjacentSubRange(const RenderCommand &a, const RenderCommand &b) + { + // Two renderCommands are adjacent if one contains all the other command's textures + QVector<ShaderParameterPack::NamedResource> texturesA = a.m_parameterPack.textures(); + QVector<ShaderParameterPack::NamedResource> texturesB = b.m_parameterPack.textures(); + + if (texturesB.size() > texturesA.size()) + qSwap(texturesA, texturesB); + + // textureB.size() is always <= textureA.size() + for (const ShaderParameterPack::NamedResource &texB : qAsConst(texturesB)) { + if (!texturesA.contains(texB)) + return false; + } + return true; + } +}; + +template<typename Predicate> +int advanceUntilNonAdjacent(const QVector<RenderCommand> &commands, + const int beg, const int end, Predicate pred) +{ + int i = beg + 1; + while (i < end) { + if (!pred(*(commands.begin() + beg), *(commands.begin() + i))) + break; + ++i; + } + return i; +} + + +using CommandIt = QVector<RenderCommand>::iterator; + +template<int SortType> +struct SubRangeSorter +{ + static void sortSubRange(CommandIt begin, const CommandIt end) + { + Q_UNUSED(begin); + Q_UNUSED(end); + Q_UNREACHABLE(); + } +}; + +template<> +struct SubRangeSorter<QSortPolicy::StateChangeCost> +{ + static void sortSubRange(CommandIt begin, const CommandIt end) + { + std::stable_sort(begin, end, [] (const RenderCommand &a, const RenderCommand &b) { + return a.m_changeCost > b.m_changeCost; + }); + } +}; + +template<> +struct SubRangeSorter<QSortPolicy::BackToFront> +{ + static void sortSubRange(CommandIt begin, const CommandIt end) + { + std::stable_sort(begin, end, [] (const RenderCommand &a, const RenderCommand &b) { + return a.m_depth > b.m_depth; + }); + } +}; + +template<> +struct SubRangeSorter<QSortPolicy::Material> +{ + static void sortSubRange(CommandIt begin, const CommandIt end) + { + // First we sort by shader + std::stable_sort(begin, end, [] (const RenderCommand &a, const RenderCommand &b) { + return a.m_glShader > b.m_glShader; + }); + } +}; + +template<> +struct SubRangeSorter<QSortPolicy::FrontToBack> +{ + static void sortSubRange(CommandIt begin, const CommandIt end) + { + std::stable_sort(begin, end, [] (const RenderCommand &a, const RenderCommand &b) { + return a.m_depth < b.m_depth; + }); + } +}; + +template<> +struct SubRangeSorter<QSortPolicy::Texture> +{ + static void sortSubRange(CommandIt begin, const CommandIt end) + { + std::stable_sort(begin, end, [] (const RenderCommand &a, const RenderCommand &b) { + QVector<ShaderParameterPack::NamedResource> texturesA = a.m_parameterPack.textures(); + QVector<ShaderParameterPack::NamedResource> texturesB = b.m_parameterPack.textures(); + + const int originalTextureASize = texturesA.size(); + + if (texturesB.size() > texturesA.size()) + qSwap(texturesA, texturesB); + + int identicalTextureCount = 0; + + for (const ShaderParameterPack::NamedResource &texB : qAsConst(texturesB)) { + if (texturesA.contains(texB)) + ++identicalTextureCount; + } + + return identicalTextureCount < originalTextureASize; + }); + } +}; + +int findSubRange(const QVector<RenderCommand> &commands, + const int begin, const int end, + const QSortPolicy::SortType sortType) +{ + switch (sortType) { + case QSortPolicy::StateChangeCost: + return advanceUntilNonAdjacent(commands, begin, end, AdjacentSubRangeFinder<QSortPolicy::StateChangeCost>::adjacentSubRange); + case QSortPolicy::BackToFront: + return advanceUntilNonAdjacent(commands, begin, end, AdjacentSubRangeFinder<QSortPolicy::BackToFront>::adjacentSubRange); + case QSortPolicy::Material: + return advanceUntilNonAdjacent(commands, begin, end, AdjacentSubRangeFinder<QSortPolicy::Material>::adjacentSubRange); + case QSortPolicy::FrontToBack: + return advanceUntilNonAdjacent(commands, begin, end, AdjacentSubRangeFinder<QSortPolicy::FrontToBack>::adjacentSubRange); + case QSortPolicy::Texture: + return advanceUntilNonAdjacent(commands, begin, end, AdjacentSubRangeFinder<QSortPolicy::Texture>::adjacentSubRange); + case QSortPolicy::Uniform: + return end; + default: + Q_UNREACHABLE(); + return end; + } +} + +void sortByMaterial(QVector<RenderCommand> &commands, int begin, const int end) +{ + // We try to arrange elements so that their rendering cost is minimized for a given shader + int rangeEnd = advanceUntilNonAdjacent(commands, begin, end, AdjacentSubRangeFinder<QSortPolicy::Material>::adjacentSubRange); + while (begin != end) { + if (begin + 1 < rangeEnd) { + std::stable_sort(commands.begin() + begin + 1, commands.begin() + rangeEnd, [] (const RenderCommand &a, const RenderCommand &b){ + return a.m_material.handle() < b.m_material.handle(); + }); + } + begin = rangeEnd; + rangeEnd = advanceUntilNonAdjacent(commands, begin, end, AdjacentSubRangeFinder<QSortPolicy::Material>::adjacentSubRange); + } +} + +void sortCommandRange(QVector<RenderCommand> &commands, int begin, const int end, const int level, + const QVector<Qt3DRender::QSortPolicy::SortType> &sortingTypes) +{ + if (level >= sortingTypes.size()) + return; + + switch (sortingTypes.at(level)) { + case QSortPolicy::StateChangeCost: + SubRangeSorter<QSortPolicy::StateChangeCost>::sortSubRange(commands.begin() + begin, commands.begin() + end); + break; + case QSortPolicy::BackToFront: + SubRangeSorter<QSortPolicy::BackToFront>::sortSubRange(commands.begin() + begin, commands.begin() + end); + break; + case QSortPolicy::Material: + // Groups all same shader DNA together + SubRangeSorter<QSortPolicy::Material>::sortSubRange(commands.begin() + begin, commands.begin() + end); + // Group all same material together (same parameters most likely) + sortByMaterial(commands, begin, end); + break; + case QSortPolicy::FrontToBack: + SubRangeSorter<QSortPolicy::FrontToBack>::sortSubRange(commands.begin() + begin, commands.begin() + end); + break; + case QSortPolicy::Texture: + SubRangeSorter<QSortPolicy::Texture>::sortSubRange(commands.begin() + begin, commands.begin() + end); + break; + case QSortPolicy::Uniform: + break; + default: + Q_UNREACHABLE(); + } + + // For all sub ranges of adjacent item for sortType[i] + // Perform filtering with sortType[i + 1] + int rangeEnd = findSubRange(commands, begin, end, sortingTypes.at(level)); + while (begin != end) { + sortCommandRange(commands, begin, rangeEnd, level + 1, sortingTypes); + begin = rangeEnd; + rangeEnd = findSubRange(commands, begin, end, sortingTypes.at(level)); + } +} + +} // anonymous + +void RenderView::sort() +{ + // Compares the bitsetKey of the RenderCommands + // Key[Depth | StateCost | Shader] + sortCommandRange(m_commands, 0, m_commands.size(), 0, m_data.m_sortingTypes); + + // For RenderCommand with the same shader + // We compute the adjacent change cost + + // Only perform uniform minimization if we explicitly asked for it + if (!m_data.m_sortingTypes.contains(QSortPolicy::Uniform)) + return; + + // Minimize uniform changes + int i = 0; + const int commandSize = m_commands.size(); + while (i < commandSize) { + int j = i; + + // Advance while commands share the same shader + while (i < commandSize && + m_commands[j].m_glShader == m_commands[i].m_glShader) + ++i; + + if (i - j > 0) { // Several commands have the same shader, so we minimize uniform changes + PackUniformHash cachedUniforms = m_commands[j++].m_parameterPack.uniforms(); + + while (j < i) { + // We need the reference here as we are modifying the original container + // not the copy + PackUniformHash &uniforms = m_commands[j].m_parameterPack.m_uniforms; + + for (int u = 0; u < uniforms.keys.size();) { + // We are comparing the values: + // - raw uniform values + // - the texture Node id if the uniform represents a texture + // since all textures are assigned texture units before the RenderCommands + // sharing the same material (shader) are rendered, we can't have the case + // where two uniforms, referencing the same texture eventually have 2 different + // texture unit values + const int uniformNameId = uniforms.keys.at(u); + const UniformValue &refValue = cachedUniforms.value(uniformNameId); + const UniformValue &newValue = uniforms.values.at(u); + if (newValue == refValue) { + uniforms.erase(u); + } else { + // Record updated value so that subsequent comparison + // for the next command will be made againts latest + // uniform value + cachedUniforms.insert(uniformNameId, newValue); + ++u; + } + } + ++j; + } + } + } +} + +void RenderView::setRenderer(Renderer *renderer) +{ + m_renderer = renderer; + m_manager = renderer->nodeManagers(); +} + +void RenderView::addClearBuffers(const ClearBuffers *cb) { + QClearBuffers::BufferTypeFlags type = cb->type(); + + if (type & QClearBuffers::StencilBuffer) { + m_clearStencilValue = cb->clearStencilValue(); + m_clearBuffer |= QClearBuffers::StencilBuffer; + } + if (type & QClearBuffers::DepthBuffer) { + m_clearDepthValue = cb->clearDepthValue(); + m_clearBuffer |= QClearBuffers::DepthBuffer; + } + // keep track of global ClearColor (if set) and collect all DrawBuffer-specific + // ClearColors + if (type & QClearBuffers::ColorBuffer) { + ClearBufferInfo clearBufferInfo; + clearBufferInfo.clearColor = cb->clearColor(); + + if (cb->clearsAllColorBuffers()) { + m_globalClearColorBuffer = clearBufferInfo; + m_clearBuffer |= QClearBuffers::ColorBuffer; + } else { + if (cb->bufferId()) { + const RenderTargetOutput *targetOutput = m_manager->attachmentManager()->lookupResource(cb->bufferId()); + if (targetOutput) { + clearBufferInfo.attchmentPoint = targetOutput->point(); + // Note: a job is later performed to find the drawIndex from the buffer attachment point + // using the AttachmentPack + m_specificClearColorBuffers.push_back(clearBufferInfo); + } + } + } + } +} + +// If we are there, we know that entity had a GeometryRenderer + Material +EntityRenderCommandData RenderView::buildDrawRenderCommands(const QVector<Entity *> &entities, + int offset, int count) const +{ + GLShaderManager *glShaderManager = m_renderer->glResourceManagers()->glShaderManager(); + EntityRenderCommandData commands; + + commands.reserve(count); + + for (int i = 0; i < count; ++i) { + const int idx = offset + i; + Entity *entity = entities.at(idx); + GeometryRenderer *geometryRenderer = nullptr; + HGeometryRenderer geometryRendererHandle = entity->componentHandle<GeometryRenderer>(); + + // There is a geometry renderer with geometry + if ((geometryRenderer = m_manager->geometryRendererManager()->data(geometryRendererHandle)) != nullptr + && geometryRenderer->isEnabled() + && !geometryRenderer->geometryId().isNull()) { + + const Qt3DCore::QNodeId materialComponentId = entity->componentUuid<Material>(); + const HMaterial materialHandle = entity->componentHandle<Material>(); + const QVector<RenderPassParameterData> renderPassData = m_parameters.value(materialComponentId); + + HGeometry geometryHandle = m_manager->geometryManager()->lookupHandle(geometryRenderer->geometryId()); + Geometry *geometry = m_manager->geometryManager()->data(geometryHandle); + + // 1 RenderCommand per RenderPass pass on an Entity with a Mesh + for (const RenderPassParameterData &passData : renderPassData) { + // Add the RenderPass Parameters + RenderCommand command = {}; + command.m_geometryRenderer = geometryRendererHandle; + command.m_geometry = geometryHandle; + + command.m_material = materialHandle; + // For RenderPass based states we use the globally set RenderState + // if no renderstates are defined as part of the pass. That means: + // RenderPass { renderStates: [] } will use the states defined by + // StateSet in the FrameGraph + RenderPass *pass = passData.pass; + if (pass->hasRenderStates()) { + command.m_stateSet = RenderStateSetPtr::create(); + addStatesToRenderStateSet(command.m_stateSet.data(), pass->renderStates(), m_manager->renderStateManager()); + if (m_stateSet != nullptr) + command.m_stateSet->merge(m_stateSet); + command.m_changeCost = m_renderer->defaultRenderState()->changeCost(command.m_stateSet.data()); + } + command.m_shaderId = pass->shaderProgram(); + command.m_glShader = glShaderManager->lookupResource(command.m_shaderId); + + // It takes two frames to have a valid command as we can only + // reference a glShader at frame n if it has been loaded at frame n - 1 + if (!command.m_glShader) + continue; + + { // Scoped to show extent + + // Update the draw command with what's going to be needed for the drawing + int primitiveCount = geometryRenderer->vertexCount(); + int estimatedCount = 0; + Attribute *indexAttribute = nullptr; + Attribute *indirectAttribute = nullptr; + + const QVector<Qt3DCore::QNodeId> attributeIds = geometry->attributes(); + for (Qt3DCore::QNodeId attributeId : attributeIds) { + Attribute *attribute = m_manager->attributeManager()->lookupResource(attributeId); + switch (attribute->attributeType()) { + case QAttribute::IndexAttribute: + indexAttribute = attribute; + break; + case QAttribute::DrawIndirectAttribute: + indirectAttribute = attribute; + break; + case QAttribute::VertexAttribute: + estimatedCount = std::max(int(attribute->count()), estimatedCount); + break; + default: + Q_UNREACHABLE(); + break; + } + } + + command.m_drawIndexed = (indexAttribute != nullptr); + command.m_drawIndirect = (indirectAttribute != nullptr); + + // Update the draw command with all the information required for the drawing + if (command.m_drawIndexed) { + command.m_indexAttributeDataType = GraphicsContext::glDataTypeFromAttributeDataType(indexAttribute->vertexBaseType()); + command.m_indexAttributeByteOffset = indexAttribute->byteOffset() + geometryRenderer->indexBufferByteOffset(); + } + + // Note: we only care about the primitiveCount when using direct draw calls + // For indirect draw calls it is assumed the buffer was properly set already + if (command.m_drawIndirect) { + command.m_indirectAttributeByteOffset = indirectAttribute->byteOffset(); + command.m_indirectDrawBuffer = m_manager->bufferManager()->lookupHandle(indirectAttribute->bufferId()); + } else { + // Use the count specified by the GeometryRender + // If not specify use the indexAttribute count if present + // Otherwise tries to use the count from the attribute with the highest count + if (primitiveCount == 0) { + if (indexAttribute) + primitiveCount = indexAttribute->count(); + else + primitiveCount = estimatedCount; + } + } + + command.m_primitiveCount = primitiveCount; + command.m_primitiveType = geometryRenderer->primitiveType(); + command.m_primitiveRestartEnabled = geometryRenderer->primitiveRestartEnabled(); + command.m_restartIndexValue = geometryRenderer->restartIndexValue(); + command.m_firstInstance = geometryRenderer->firstInstance(); + command.m_instanceCount = geometryRenderer->instanceCount(); + command.m_firstVertex = geometryRenderer->firstVertex(); + command.m_indexOffset = geometryRenderer->indexOffset(); + command.m_verticesPerPatch = geometryRenderer->verticesPerPatch(); + } // scope + + + commands.push_back(entity, + std::move(command), + std::move(passData)); + } + } + } + + return commands; +} + +EntityRenderCommandData RenderView::buildComputeRenderCommands(const QVector<Entity *> &entities, + int offset, int count) const +{ + // If the RenderView contains only a ComputeDispatch then it cares about + // A ComputeDispatch is also implicitely a NoDraw operation + // enabled flag + // layer component + // material/effect/technique/parameters/filters/ + EntityRenderCommandData commands; + GLShaderManager *glShaderManager = m_renderer->glResourceManagers()->glShaderManager(); + + commands.reserve(count); + + for (int i = 0; i < count; ++i) { + const int idx = offset + i; + Entity *entity = entities.at(idx); + ComputeCommand *computeJob = nullptr; + HComputeCommand computeCommandHandle = entity->componentHandle<ComputeCommand>(); + if ((computeJob = nodeManagers()->computeJobManager()->data(computeCommandHandle)) != nullptr + && computeJob->isEnabled()) { + + const Qt3DCore::QNodeId materialComponentId = entity->componentUuid<Material>(); + const QVector<RenderPassParameterData> renderPassData = m_parameters.value(materialComponentId); + + // 1 RenderCommand per RenderPass pass on an Entity with a Mesh + for (const RenderPassParameterData &passData : renderPassData) { + // Add the RenderPass Parameters + RenderCommand command = {}; + RenderPass *pass = passData.pass; + + if (pass->hasRenderStates()) { + command.m_stateSet = RenderStateSetPtr::create(); + addStatesToRenderStateSet(command.m_stateSet.data(), pass->renderStates(), m_manager->renderStateManager()); + + // Merge per pass stateset with global stateset + // so that the local stateset only overrides + if (m_stateSet != nullptr) + command.m_stateSet->merge(m_stateSet); + command.m_changeCost = m_renderer->defaultRenderState()->changeCost(command.m_stateSet.data()); + } + command.m_shaderId = pass->shaderProgram(); + command.m_glShader = glShaderManager->lookupResource(command.m_shaderId); + + // It takes two frames to have a valid command as we can only + // reference a glShader at frame n if it has been loaded at frame n - 1 + if (!command.m_glShader) + continue; + + command.m_computeCommand = computeCommandHandle; + command.m_type = RenderCommand::Compute; + command.m_workGroups[0] = std::max(m_workGroups[0], computeJob->x()); + command.m_workGroups[1] = std::max(m_workGroups[1], computeJob->y()); + command.m_workGroups[2] = std::max(m_workGroups[2], computeJob->z()); + + commands.push_back(entity, + std::move(command), + std::move(passData)); + } + } + } + + return commands; +} + +void RenderView::updateRenderCommand(EntityRenderCommandData *renderCommandData, + int offset, + int count) +{ + // Note: since many threads can be building render commands + // we need to ensure that the UniformBlockValueBuilder they are using + // is only accessed from the same thread + UniformBlockValueBuilder *builder = new UniformBlockValueBuilder(); + builder->shaderDataManager = m_manager->shaderDataManager(); + builder->textureManager = m_manager->textureManager(); + m_localData.setLocalData(builder); + + for (int i = 0, m = count; i < m; ++i) { + const int idx = offset + i; + Entity *entity = renderCommandData->entities.at(idx); + const RenderPassParameterData passData = renderCommandData->passesData.at(idx); + RenderCommand &command = renderCommandData->commands[idx]; + + // Pick which lights to take in to account. + // For now decide based on the distance by taking the MAX_LIGHTS closest lights. + // Replace with more sophisticated mechanisms later. + // Copy vector so that we can sort it concurrently and we only want to sort the one for the current command + QVector<LightSource> lightSources; + EnvironmentLight *environmentLight = nullptr; + + if (command.m_type == RenderCommand::Draw) { + // Project the camera-to-object-center vector onto the camera + // view vector. This gives a depth value suitable as the key + // for BackToFront sorting. + command.m_depth = Vector3D::dotProduct(entity->worldBoundingVolume()->center() - m_data.m_eyePos, m_data.m_eyeViewDir); + + environmentLight = m_environmentLight; + lightSources = m_lightSources; + + if (lightSources.size() > 1) { + const Vector3D entityCenter = entity->worldBoundingVolume()->center(); + std::sort(lightSources.begin(), lightSources.end(), + [&] (const LightSource &a, const LightSource &b) { + const float distA = entityCenter.distanceToPoint(a.entity->worldBoundingVolume()->center()); + const float distB = entityCenter.distanceToPoint(b.entity->worldBoundingVolume()->center()); + return distA < distB; + }); + } + lightSources = lightSources.mid(0, std::max(lightSources.size(), MAX_LIGHTS)); + } else { // Compute + // Note: if frameCount has reached 0 in the previous frame, isEnabled + // would be false + ComputeCommand *computeJob = m_manager->computeJobManager()->data(command.m_computeCommand); + if (computeJob->runType() == QComputeCommand::Manual) + computeJob->updateFrameCount(); + } + + ParameterInfoList globalParameters = passData.parameterInfo; + // setShaderAndUniforms can initialize a localData + // make sure this is cleared before we leave this function + + setShaderAndUniforms(&command, + globalParameters, + entity, + lightSources, + environmentLight); + } + + // We reset the local data once we are done with it + m_localData.setLocalData(nullptr); +} + +void RenderView::updateMatrices() +{ + if (m_data.m_renderCameraNode && m_data.m_renderCameraLens && m_data.m_renderCameraLens->isEnabled()) { + const Matrix4x4 cameraWorld = *(m_data.m_renderCameraNode->worldTransform()); + setViewMatrix(m_data.m_renderCameraLens->viewMatrix(cameraWorld)); + + setViewProjectionMatrix(m_data.m_renderCameraLens->projection() * viewMatrix()); + //To get the eyePosition of the camera, we need to use the inverse of the + //camera's worldTransform matrix. + const Matrix4x4 inverseWorldTransform = viewMatrix().inverted(); + const Vector3D eyePosition(inverseWorldTransform.column(3)); + setEyePosition(eyePosition); + + // Get the viewing direction of the camera. Use the normal matrix to + // ensure non-uniform scale works too. + const QMatrix3x3 normalMat = convertToQMatrix4x4(m_data.m_viewMatrix).normalMatrix(); + // dir = normalize(QVector3D(0, 0, -1) * normalMat) + setEyeViewDirection(Vector3D(-normalMat(2, 0), -normalMat(2, 1), -normalMat(2, 2)).normalized()); + } +} + +void RenderView::setUniformValue(ShaderParameterPack &uniformPack, int nameId, const UniformValue &value) const +{ + // At this point a uniform value can only be a scalar type + // or a Qt3DCore::QNodeId corresponding to a Texture or Image + // ShaderData/Buffers would be handled as UBO/SSBO and would therefore + // not be in the default uniform block + if (value.valueType() == UniformValue::NodeId) { + const Qt3DCore::QNodeId *nodeIds = value.constData<Qt3DCore::QNodeId>(); + + const int uniformArraySize = value.byteSize() / sizeof(Qt3DCore::QNodeId); + UniformValue::ValueType resourceType = UniformValue::TextureValue; + + for (int i = 0; i < uniformArraySize; ++i) { + const Qt3DCore::QNodeId resourceId = nodeIds[i]; + + const Texture *tex = m_manager->textureManager()->lookupResource(resourceId); + if (tex != nullptr) { + uniformPack.setTexture(nameId, i, resourceId); + } else { + const ShaderImage *img = m_manager->shaderImageManager()->lookupResource(resourceId); + if (img != nullptr) { + resourceType = UniformValue::ShaderImageValue; + uniformPack.setImage(nameId, i, resourceId); + } + } + } + + // This uniform will be overridden in SubmissionContext::setParameters + // and -1 values will be replaced by valid Texture or Image units + UniformValue uniformValue(uniformArraySize * sizeof(int), resourceType); + std::fill(uniformValue.data<int>(), uniformValue.data<int>() + uniformArraySize, -1); + uniformPack.setUniform(nameId, uniformValue); + } else { + uniformPack.setUniform(nameId, value); + } +} + +void RenderView::setStandardUniformValue(ShaderParameterPack &uniformPack, + int glslNameId, + int nameId, + Entity *entity, + const Matrix4x4 &worldTransform) const +{ + uniformPack.setUniform(glslNameId, standardUniformValue(ms_standardUniformSetters[nameId], entity, worldTransform)); +} + +void RenderView::setUniformBlockValue(ShaderParameterPack &uniformPack, + GLShader *shader, + const ShaderUniformBlock &block, + const UniformValue &value) const +{ + Q_UNUSED(shader) + + if (value.valueType() == UniformValue::NodeId) { + + Buffer *buffer = nullptr; + if ((buffer = m_manager->bufferManager()->lookupResource(*value.constData<Qt3DCore::QNodeId>())) != nullptr) { + BlockToUBO uniformBlockUBO; + uniformBlockUBO.m_blockIndex = block.m_index; + uniformBlockUBO.m_bufferID = buffer->peerId(); + uniformBlockUBO.m_needsUpdate = false; + uniformPack.setUniformBuffer(std::move(uniformBlockUBO)); + // Buffer update to GL buffer will be done at render time + } + } +} + +void RenderView::setShaderStorageValue(ShaderParameterPack &uniformPack, + GLShader *shader, + const ShaderStorageBlock &block, + const UniformValue &value) const +{ + Q_UNUSED(shader) + if (value.valueType() == UniformValue::NodeId) { + Buffer *buffer = nullptr; + if ((buffer = m_manager->bufferManager()->lookupResource(*value.constData<Qt3DCore::QNodeId>())) != nullptr) { + BlockToSSBO shaderStorageBlock; + shaderStorageBlock.m_blockIndex = block.m_index; + shaderStorageBlock.m_bufferID = buffer->peerId(); + shaderStorageBlock.m_bindingIndex = block.m_binding; + uniformPack.setShaderStorageBuffer(shaderStorageBlock); + // Buffer update to GL buffer will be done at render time + } + } +} + +void RenderView::setDefaultUniformBlockShaderDataValue(ShaderParameterPack &uniformPack, GLShader *shader, ShaderData *shaderData, const QString &structName) const +{ + UniformBlockValueBuilder *builder = m_localData.localData(); + builder->activeUniformNamesToValue.clear(); + + // Set the view matrix to be used to transform "Transformed" properties in the ShaderData + builder->viewMatrix = m_data.m_viewMatrix; + // Force to update the whole block + builder->updatedPropertiesOnly = false; + // Retrieve names and description of each active uniforms in the uniform block + builder->uniforms = shader->activeUniformsForUniformBlock(-1); + // Build name-value map for the block + builder->buildActiveUniformNameValueMapStructHelper(shaderData, structName); + // Set uniform values for each entrie of the block name-value map + QHash<int, QVariant>::const_iterator activeValuesIt = builder->activeUniformNamesToValue.constBegin(); + const QHash<int, QVariant>::const_iterator activeValuesEnd = builder->activeUniformNamesToValue.constEnd(); + + // TO DO: Make the ShaderData store UniformValue + while (activeValuesIt != activeValuesEnd) { + setUniformValue(uniformPack, activeValuesIt.key(), UniformValue::fromVariant(activeValuesIt.value())); + ++activeValuesIt; + } +} + +void RenderView::setShaderAndUniforms(RenderCommand *command, + ParameterInfoList ¶meters, + Entity *entity, + const QVector<LightSource> &activeLightSources, + EnvironmentLight *environmentLight) const +{ + // The VAO Handle is set directly in the renderer thread so as to avoid having to use a mutex here + // Set shader, technique, and effect by basically doing : + // ShaderProgramManager[MaterialManager[frontentEntity->id()]->Effect->Techniques[TechniqueFilter->name]->RenderPasses[RenderPassFilter->name]]; + // The Renderer knows that if one of those is null, a default material / technique / effect as to be used + + // Find all RenderPasses (in order) matching values set in the RenderPassFilter + // Get list of parameters for the Material, Effect, and Technique + // For each ParameterBinder in the RenderPass -> create a QUniformPack + // Once that works, improve that to try and minimize QUniformPack updates + + GLShader *shader = command->m_glShader; + if (shader != nullptr && shader->isLoaded()) { + + // Builds the QUniformPack, sets shader standard uniforms and store attributes name / glname bindings + // If a parameter is defined and not found in the bindings it is assumed to be a binding of Uniform type with the glsl name + // equals to the parameter name + const QVector<int> uniformNamesIds = shader->uniformsNamesIds(); + const QVector<int> standardUniformNamesIds = shader->standardUniformNameIds(); + const QVector<int> uniformBlockNamesIds = shader->uniformBlockNamesIds(); + const QVector<int> shaderStorageBlockNamesIds = shader->storageBlockNamesIds(); + const QVector<int> attributeNamesIds = shader->attributeNamesIds(); + + // Set fragData Name and index + // Later on we might want to relink the shader if attachments have changed + // But for now we set them once and for all + if (!m_renderTarget.isNull() && !shader->isLoaded()) { + QHash<QString, int> fragOutputs; + const auto atts = m_attachmentPack.attachments(); + for (const Attachment &att : atts) { + if (att.m_point <= QRenderTargetOutput::Color15) + fragOutputs.insert(att.m_name, att.m_point); + } + // Set frag outputs in the shaders if hash not empty + if (!fragOutputs.isEmpty()) + shader->setFragOutputs(fragOutputs); + } + + if (!uniformNamesIds.isEmpty() || !standardUniformNamesIds.isEmpty() || + !attributeNamesIds.isEmpty() || + !shaderStorageBlockNamesIds.isEmpty() || !attributeNamesIds.isEmpty()) { + + // Set default standard uniforms without bindings + const Matrix4x4 worldTransform = *(entity->worldTransform()); + + for (const int uniformNameId : standardUniformNamesIds) + setStandardUniformValue(command->m_parameterPack, uniformNameId, uniformNameId, entity, worldTransform); + + // Set default attributes + command->m_activeAttributes = attributeNamesIds; + + // At this point we know whether the command is a valid draw command or not + // We still need to process the uniforms as the command could be a compute command + command->m_isValid = !command->m_activeAttributes.empty(); + + // Parameters remaining could be + // -> uniform scalar / vector + // -> uniform struct / arrays + // -> uniform block / array (4.3) + // -> ssbo block / array (4.3) + + ParameterInfoList::const_iterator it = parameters.cbegin(); + const ParameterInfoList::const_iterator parametersEnd = parameters.cend(); + + while (it != parametersEnd) { + Parameter *param = m_manager->data<Parameter, ParameterManager>(it->handle); + const UniformValue &uniformValue = param->uniformValue(); + if (uniformNamesIds.contains(it->nameId)) { // Parameter is a regular uniform + setUniformValue(command->m_parameterPack, it->nameId, uniformValue); + } else if (uniformBlockNamesIds.indexOf(it->nameId) != -1) { // Parameter is a uniform block + setUniformBlockValue(command->m_parameterPack, shader, shader->uniformBlockForBlockNameId(it->nameId), uniformValue); + } else if (shaderStorageBlockNamesIds.indexOf(it->nameId) != -1) { // Parameters is a SSBO + setShaderStorageValue(command->m_parameterPack, shader, shader->storageBlockForBlockNameId(it->nameId), uniformValue); + } else { // Parameter is a struct + ShaderData *shaderData = nullptr; + if (uniformValue.valueType() == UniformValue::NodeId && + (shaderData = m_manager->shaderDataManager()->lookupResource(*uniformValue.constData<Qt3DCore::QNodeId>())) != nullptr) { + // Try to check if we have a struct or array matching a QShaderData parameter + setDefaultUniformBlockShaderDataValue(command->m_parameterPack, shader, shaderData, StringToInt::lookupString(it->nameId)); + } + // Otherwise: param unused by current shader + } + ++it; + } + + // Lights + + int lightIdx = 0; + for (const LightSource &lightSource : activeLightSources) { + if (lightIdx == MAX_LIGHTS) + break; + Entity *lightEntity = lightSource.entity; + const Matrix4x4 lightWorldTransform = *(lightEntity->worldTransform()); + const Vector3D worldPos = lightWorldTransform * Vector3D(0.0f, 0.0f, 0.0f); + for (Light *light : lightSource.lights) { + if (!light->isEnabled()) + continue; + + ShaderData *shaderData = m_manager->shaderDataManager()->lookupResource(light->shaderData()); + if (!shaderData) + continue; + + if (lightIdx == MAX_LIGHTS) + break; + + // Note: implicit conversion of values to UniformValue + setUniformValue(command->m_parameterPack, LIGHT_POSITION_NAMES[lightIdx], worldPos); + setUniformValue(command->m_parameterPack, LIGHT_TYPE_NAMES[lightIdx], int(QAbstractLight::PointLight)); + setUniformValue(command->m_parameterPack, LIGHT_COLOR_NAMES[lightIdx], Vector3D(1.0f, 1.0f, 1.0f)); + setUniformValue(command->m_parameterPack, LIGHT_INTENSITY_NAMES[lightIdx], 0.5f); + + setUniformValue(command->m_parameterPack, LIGHT_POSITION_UNROLL_NAMES[lightIdx], worldPos); + setUniformValue(command->m_parameterPack, LIGHT_TYPE_UNROLL_NAMES[lightIdx], int(QAbstractLight::PointLight)); + setUniformValue(command->m_parameterPack, LIGHT_COLOR_UNROLL_NAMES[lightIdx], Vector3D(1.0f, 1.0f, 1.0f)); + setUniformValue(command->m_parameterPack, LIGHT_INTENSITY_UNROLL_NAMES[lightIdx], 0.5f); + + + // There is no risk in doing that even if multithreaded + // since we are sure that a shaderData is unique for a given light + // and won't ever be referenced as a Component either + Matrix4x4 *worldTransform = lightEntity->worldTransform(); + if (worldTransform) + shaderData->updateWorldTransform(*worldTransform); + + setDefaultUniformBlockShaderDataValue(command->m_parameterPack, shader, shaderData, LIGHT_STRUCT_NAMES[lightIdx]); + setDefaultUniformBlockShaderDataValue(command->m_parameterPack, shader, shaderData, LIGHT_STRUCT_UNROLL_NAMES[lightIdx]); + ++lightIdx; + } + } + + if (uniformNamesIds.contains(LIGHT_COUNT_NAME_ID)) + setUniformValue(command->m_parameterPack, LIGHT_COUNT_NAME_ID, UniformValue(qMax((environmentLight ? 0 : 1), lightIdx))); + + // If no active light sources and no environment light, add a default light + if (activeLightSources.isEmpty() && !environmentLight) { + // Note: implicit conversion of values to UniformValue + setUniformValue(command->m_parameterPack, LIGHT_POSITION_NAMES[0], Vector3D(10.0f, 10.0f, 0.0f)); + setUniformValue(command->m_parameterPack, LIGHT_TYPE_NAMES[0], int(QAbstractLight::PointLight)); + setUniformValue(command->m_parameterPack, LIGHT_COLOR_NAMES[0], Vector3D(1.0f, 1.0f, 1.0f)); + setUniformValue(command->m_parameterPack, LIGHT_INTENSITY_NAMES[0], 0.5f); + + setUniformValue(command->m_parameterPack, LIGHT_POSITION_UNROLL_NAMES[0], Vector3D(10.0f, 10.0f, 0.0f)); + setUniformValue(command->m_parameterPack, LIGHT_TYPE_UNROLL_NAMES[0], int(QAbstractLight::PointLight)); + setUniformValue(command->m_parameterPack, LIGHT_COLOR_UNROLL_NAMES[0], Vector3D(1.0f, 1.0f, 1.0f)); + setUniformValue(command->m_parameterPack, LIGHT_INTENSITY_UNROLL_NAMES[0], 0.5f); + } + + // Environment Light + int envLightCount = 0; + if (environmentLight && environmentLight->isEnabled()) { + ShaderData *shaderData = m_manager->shaderDataManager()->lookupResource(environmentLight->shaderData()); + if (shaderData) { + setDefaultUniformBlockShaderDataValue(command->m_parameterPack, shader, shaderData, QStringLiteral("envLight")); + envLightCount = 1; + } + } else { + // with some drivers, samplers (like the envbox sampler) need to be bound even though + // they may not be actually used, otherwise draw calls can fail + static const int irradianceId = StringToInt::lookupId(QLatin1String("envLight.irradiance")); + static const int specularId = StringToInt::lookupId(QLatin1String("envLight.specular")); + setUniformValue(command->m_parameterPack, irradianceId, m_renderer->submissionContext()->maxTextureUnitsCount()); + setUniformValue(command->m_parameterPack, specularId, m_renderer->submissionContext()->maxTextureUnitsCount()); + } + setUniformValue(command->m_parameterPack, StringToInt::lookupId(QStringLiteral("envLightCount")), envLightCount); + } + } +} + +bool RenderView::hasBlitFramebufferInfo() const +{ + return m_hasBlitFramebufferInfo; +} + +void RenderView::setHasBlitFramebufferInfo(bool hasBlitFramebufferInfo) +{ + m_hasBlitFramebufferInfo = hasBlitFramebufferInfo; +} + +BlitFramebufferInfo RenderView::blitFrameBufferInfo() const +{ + return m_blitFrameBufferInfo; +} + +void RenderView::setBlitFrameBufferInfo(const BlitFramebufferInfo &blitFrameBufferInfo) +{ + m_blitFrameBufferInfo = blitFrameBufferInfo; +} + +bool RenderView::isDownloadBuffersEnable() const +{ + return m_isDownloadBuffersEnable; +} + +void RenderView::setIsDownloadBuffersEnable(bool isDownloadBuffersEnable) +{ + m_isDownloadBuffersEnable = isDownloadBuffersEnable; +} + +} // namespace OpenGL +} // namespace Render +} // namespace Qt3DRender + +QT_END_NAMESPACE |