Enable Material style with RHI

Change-Id: I9100d20b76b9cc6ac138f474e5d808db19ed6684
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

3 files changed, 29 insertions, 0 deletions

diff --git a/src/imports/controls/material/qtquickcontrols2materialstyleplugin.qrc b/src/imports/controls/material/qtquickcontrols2materialstyleplugin.qrc
index 6e29aea4..71f9563b 100644
--- a/src/imports/controls/material/qtquickcontrols2materialstyleplugin.qrc
+++ b/src/imports/controls/material/qtquickcontrols2materialstyleplugin.qrc
@@ -15,5 +15,6 @@
         <file>shaders/RectangularGlow.frag</file>
         <file>shaders/+glslcore/RectangularGlow.frag</file>
         <file>shaders/+hlsl/RectangularGlow.frag</file>
+        <file>shaders/+qsb/RectangularGlow.frag</file>
     </qresource>
 </RCC>
diff --git a/src/imports/controls/material/shaders/+qsb/RectangularGlow.frag b/src/imports/controls/material/shaders/+qsb/RectangularGlow.frag
new file mode 100644
index 00000000..a805b134
--- /dev/null
+++ b/src/imports/controls/material/shaders/+qsb/RectangularGlow.frag
diff --git a/src/imports/controls/material/shaders/RectangularGlow_rhi.frag b/src/imports/controls/material/shaders/RectangularGlow_rhi.frag
new file mode 100644
index 00000000..3e7d2dfe
--- /dev/null
+++ b/src/imports/controls/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;
+}