nodes: implemented mask node

app/node/distort/mask/mask.cpp

@@ -0,0 +1,62 @@
+/***
+
+  Olive - Non-Linear Video Editor
+  Copyright (C) 2021 Olive Team
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+***/
+
+#include "mask.h"
+
+namespace olive {
+
+#define super PolygonGenerator
+
+MaskDistortNode::MaskDistortNode()
+{
+  // Mask should always be (1.0, 1.0, 1.0) for multiply to work correctly
+  SetInputFlags(kColorInput, InputFlags(GetInputFlags(kColorInput) | kInputFlagHidden));
+}
+
+ShaderCode MaskDistortNode::GetShaderCode(const ShaderRequest &request) const
+{
+  Q_UNUSED(request)
+  return ShaderCode(FileFunctions::ReadFileAsString(QStringLiteral(":/shaders/multiply.frag")));
+}
+
+void MaskDistortNode::Retranslate()
+{
+  super::Retranslate();
+
+  SetInputName(kBaseInput, tr("Texture"));
+}
+
+void MaskDistortNode::Value(const NodeValueRow &value, const NodeGlobals &globals, NodeValueTable *table) const
+{
+  GenerateJob job = GetGenerateJob(value);
+
+  if (!value[kBaseInput].data().isNull()) {
+    // Push as merge node
+    ShaderJob merge;
+
+    merge.SetShaderID(QStringLiteral("mrg"));
+    merge.InsertValue(QStringLiteral("tex_a"), value[kBaseInput]);
+    merge.InsertValue(QStringLiteral("tex_b"), NodeValue(NodeValue::kTexture, QVariant::fromValue(job), this));
+
+    table->Push(NodeValue::kTexture, QVariant::fromValue(merge), this);
+  }
+}
+
+}