Migrate shadereffects example to be cross-backend

...while demonstrating best practices like file selectors.

Task-number: QTBUG-52914
Change-Id: Ibf7bca77b7b142f5ccb956e05efc5be974d53c79
Reviewed-by: Andy Nichols <andy.nichols@qt.io>

1 files changed, 18 insertions, 0 deletions

diff --git a/examples/quick/shadereffects/content/shaders/+hlsl/blur.frag b/examples/quick/shadereffects/content/shaders/+hlsl/blur.frag
new file mode 100644
index 0000000000..481a238d2a
--- /dev/null
+++ b/examples/quick/shadereffects/content/shaders/+hlsl/blur.frag
@@ -0,0 +1,18 @@
+cbuffer ConstantBuffer : register(b0)
+{
+    float4x4 qt_Matrix;
+    float qt_Opacity;
+    float2 delta;
+};
+
+Texture2D source : register(t0);
+SamplerState sourceSampler : register(s0);
+
+float4 main(float4 position : SV_POSITION, float2 coord : TEXCOORD0) : SV_TARGET
+{
+    return (0.0538 * source.Sample(sourceSampler, coord - 3.182 * delta)
+        + 0.3229 * source.Sample(sourceSampler, coord - 1.364 * delta)
+        + 0.2466 * source.Sample(sourceSampler, coord)
+        + 0.3229 * source.Sample(sourceSampler, coord + 1.364 * delta)
+        + 0.0538 * source.Sample(sourceSampler, coord + 3.182 * delta)) * qt_Opacity;
+}