6 files changed, 133 insertions, 0 deletions
diff --git a/src/quickcontrols2/material/shaders/+glslcore/RectangularGlow.frag b/src/quickcontrols2/material/shaders/+glslcore/RectangularGlow.frag
new file mode 100644
index 00000000..432d86b5
--- /dev/null
+++ b/src/quickcontrols2/material/shaders/+glslcore/RectangularGlow.frag
@@ -0,0 +1,25 @@
+#version 150
+
+uniform float qt_Opacity;
+uniform float relativeSizeX;
+uniform float relativeSizeY;
+uniform float spread;
+uniform vec4 color;
+
+in vec2 qt_TexCoord0;
+out vec4 fragColor;
+
+float linearstep(float e0, float e1, float x)
+{
+    return clamp((x - e0) / (e1 - e0), 0.0, 1.0);
+}
+
+void main()
+{
+    float alpha =
+        smoothstep(0.0, relativeSizeX, 0.5 - abs(0.5 - qt_TexCoord0.x)) *
+        smoothstep(0.0, relativeSizeY, 0.5 - abs(0.5 - qt_TexCoord0.y));
+
+    float spreadMultiplier = linearstep(spread, 1.0 - spread, alpha);
+    fragColor = color * qt_Opacity * spreadMultiplier * spreadMultiplier;
+}
diff --git a/src/quickcontrols2/material/shaders/+hlsl/RectangularGlow.frag b/src/quickcontrols2/material/shaders/+hlsl/RectangularGlow.frag
new file mode 100644
index 00000000..69d9f852
--- /dev/null
+++ b/src/quickcontrols2/material/shaders/+hlsl/RectangularGlow.frag
@@ -0,0 +1,21 @@
+cbuffer ConstantBuffer : register(b0)
+{
+    float4x4 qt_Matrix;
+    float qt_Opacity;
+    float relativeSizeX;
+    float relativeSizeY;
+    float spread;
+    float4 color;
+}
+
+float linearstep(float e0, float e1, float x) { return clamp((x - e0) / (e1 - e0), 0.0, 1.0); }
+
+float4 main(float4 position : SV_POSITION, float2 coord : TEXCOORD0) : SV_TARGET
+{
+    float alpha =
+        smoothstep(0.0, relativeSizeX, 0.5 - abs(0.5 - coord.x)) *
+        smoothstep(0.0, relativeSizeY, 0.5 - abs(0.5 - coord.y));
+
+    float spreadMultiplier = linearstep(spread, 1.0 - spread, alpha);
+    return color * qt_Opacity * spreadMultiplier * spreadMultiplier;
+}
diff --git a/src/quickcontrols2/material/shaders/+qsb/RectangularGlow.frag b/src/quickcontrols2/material/shaders/+qsb/RectangularGlow.frag
new file mode 100644
index 00000000..5cfa2db6
--- /dev/null
+++ b/src/quickcontrols2/material/shaders/+qsb/RectangularGlow.frag
diff --git a/src/quickcontrols2/material/shaders/RectangularGlow.frag b/src/quickcontrols2/material/shaders/RectangularGlow.frag
new file mode 100644
index 00000000..40bab580
--- /dev/null
+++ b/src/quickcontrols2/material/shaders/RectangularGlow.frag
@@ -0,0 +1,19 @@
+uniform highp float qt_Opacity;
+uniform mediump float relativeSizeX;
+uniform mediump float relativeSizeY;
+uniform mediump float spread;
+uniform lowp vec4 color;
+varying highp vec2 qt_TexCoord0;
+
+highp float linearstep(highp float e0, highp float e1, highp float x) {
+    return clamp((x - e0) / (e1 - e0), 0.0, 1.0);
+}
+
+void main() {
+    lowp float alpha =
+        smoothstep(0.0, relativeSizeX, 0.5 - abs(0.5 - qt_TexCoord0.x)) *
+        smoothstep(0.0, relativeSizeY, 0.5 - abs(0.5 - qt_TexCoord0.y));
+
+    highp float spreadMultiplier = linearstep(spread, 1.0 - spread, alpha);
+    gl_FragColor = color * qt_Opacity * spreadMultiplier * spreadMultiplier;
+}
diff --git a/src/quickcontrols2/material/shaders/RectangularGlow_rhi.frag b/src/quickcontrols2/material/shaders/RectangularGlow_rhi.frag
new file mode 100644
index 00000000..3e7d2dfe
--- /dev/null
+++ b/src/quickcontrols2/material/shaders/RectangularGlow_rhi.frag
@@ -0,0 +1,28 @@
+#version 440
+
+layout(location = 0) in vec2 qt_TexCoord0;
+layout(location = 0) out vec4 fragColor;
+
+layout(std140, binding = 0) uniform buf {
+    mat4 qt_Matrix;
+    float qt_Opacity;
+    float relativeSizeX;
+    float relativeSizeY;
+    float spread;
+    vec4 color;
+} ubuf;
+
+float linearstep(float e0, float e1, float x)
+{
+    return clamp((x - e0) / (e1 - e0), 0.0, 1.0);
+}
+
+void main()
+{
+    float alpha =
+        smoothstep(0.0, ubuf.relativeSizeX, 0.5 - abs(0.5 - qt_TexCoord0.x)) *
+        smoothstep(0.0, ubuf.relativeSizeY, 0.5 - abs(0.5 - qt_TexCoord0.y));
+
+    float spreadMultiplier = linearstep(ubuf.spread, 1.0 - ubuf.spread, alpha);
+    fragColor = ubuf.color * ubuf.qt_Opacity * spreadMultiplier * spreadMultiplier;
+}
diff --git a/src/quickcontrols2/material/shaders/compile.bat b/src/quickcontrols2/material/shaders/compile.bat
new file mode 100644
index 00000000..e87efa7a
--- /dev/null
+++ b/src/quickcontrols2/material/shaders/compile.bat
@@ -0,0 +1,40 @@
+:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::
+:: Copyright (C) 2019 The Qt Company Ltd.
+:: Contact: https://www.qt.io/licensing/
+::
+:: This file is part of the QtQuick 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.
+::
+:: $QT_END_LICENSE$
+::
+:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+
+qsb --glsl "150,120,100 es" --hlsl 50 --msl 12 -o +qsb/RectangularGlow.frag RectangularGlow_rhi.frag