CPU Hello World (#1065)

* First pass on cpu-hello-world application.

* Improvements to cpu-hello-world

* Improved documentation around cpu-hello-world.
Added information about C++/CPU targets to README.md
Referenced cpu-target.

1 files changed, 15 insertions, 0 deletions

diff --git a/examples/cpu-hello-world/shader.slang b/examples/cpu-hello-world/shader.slang
new file mode 100644
index 000000000..bac5832a8
--- /dev/null
+++ b/examples/cpu-hello-world/shader.slang
@@ -0,0 +1,15 @@
+// shader.slang
+
+//TEST_INPUT:ubuffer(random(float, 4096, -1.0, 1.0), stride=4):dxbinding(0),glbinding(0),name=ioBuffer
+RWStructuredBuffer<float> ioBuffer;
+
+[numthreads(4, 1, 1)]
+void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
+{
+    uint tid = dispatchThreadID.x;
+
+    float i = ioBuffer[tid];
+    float o = i < 0.5 ? (i + i) : sqrt(i);
+
+    ioBuffer[tid] = o;
+}