1 files changed, 135 insertions, 0 deletions
diff --git a/src/plugins/renderers/opengl/jobs/materialparametergathererjob.cpp b/src/plugins/renderers/opengl/jobs/materialparametergathererjob.cpp
new file mode 100644
index 000000000..1f51ceba3
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+++ b/src/plugins/renderers/opengl/jobs/materialparametergathererjob.cpp
@@ -0,0 +1,135 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 Paul Lemire
+** 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 "materialparametergathererjob_p.h"
+#include <Qt3DRender/private/nodemanagers_p.h>
+#include <Qt3DRender/private/managers_p.h>
+#include <Qt3DRender/private/renderpassfilternode_p.h>
+#include <Qt3DRender/private/techniquefilternode_p.h>
+#include <Qt3DRender/private/job_common_p.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace Qt3DRender {
+
+namespace Render {
+
+namespace OpenGL {
+
+namespace {
+
+int materialParameterGathererCounter = 0;
+const int likelyNumberOfParameters = 24;
+
+} // anonymous
+
+MaterialParameterGathererJob::MaterialParameterGathererJob()
+    : Qt3DCore::QAspectJob()
+    , m_manager(nullptr)
+    , m_techniqueFilter(nullptr)
+    , m_renderPassFilter(nullptr)
+{
+    SET_JOB_RUN_STAT_TYPE(this, JobTypes::MaterialParameterGathering, materialParameterGathererCounter++)
+}
+
+// TechniqueFilter / RenderPassFilter
+
+// Parameters from Material/Effect/Technique
+
+// Note: we could maybe improve that by having a smart update when we detect
+// that a parameter value has changed. That might require way more book keeping
+// which might make this solution a bit too complex
+
+// The fact that this can now be performed in parallel should already provide a big
+// improvement
+void MaterialParameterGathererJob::run()
+{
+    for (const HMaterial &materialHandle : qAsConst(m_handles)) {
+        Material *material = m_manager->materialManager()->data(materialHandle);
+
+        if (Q_UNLIKELY(!material->isEnabled()))
+            continue;
+
+        Effect *effect = m_manager->effectManager()->lookupResource(material->effect());
+        Technique *technique = findTechniqueForEffect(m_manager, m_techniqueFilter, effect);
+
+        if (Q_LIKELY(technique != nullptr)) {
+            RenderPassList passes = findRenderPassesForTechnique(m_manager, m_renderPassFilter, technique);
+            if (Q_LIKELY(passes.size() > 0)) {
+                // Order set:
+                // 1 Pass Filter
+                // 2 Technique Filter
+                // 3 Material
+                // 4 Effect
+                // 5 Technique
+                // 6 RenderPass
+
+                // Add Parameters define in techniqueFilter and passFilter
+                // passFilter have priority over techniqueFilter
+
+                ParameterInfoList parameters;
+                // Doing the reserve allows a gain of 0.5ms on some of the demo examples
+                parameters.reserve(likelyNumberOfParameters);
+
+                if (m_renderPassFilter)
+                    parametersFromParametersProvider(&parameters, m_manager->parameterManager(),
+                                                     m_renderPassFilter);
+                if (m_techniqueFilter)
+                    parametersFromParametersProvider(&parameters, m_manager->parameterManager(),
+                                                     m_techniqueFilter);
+                // Get the parameters for our selected rendering setup (override what was defined in the technique/pass filter)
+                parametersFromMaterialEffectTechnique(&parameters, m_manager->parameterManager(), material, effect, technique);
+
+                for (RenderPass *renderPass : passes) {
+                    ParameterInfoList globalParameters = parameters;
+                    parametersFromParametersProvider(&globalParameters, m_manager->parameterManager(), renderPass);
+                    m_parameters[material->peerId()].push_back({renderPass, globalParameters});
+                }
+            }
+        }
+    }
+}
+
+} // OpenGL
+
+} // Render
+
+} // Qt3DRender
+
+QT_END_NAMESPACE