Test binding index for combined and not-combined textures (#4180)

1 files changed, 49 insertions, 0 deletions

diff --git a/tests/metal/texture-binding-index.slang b/tests/metal/texture-binding-index.slang
new file mode 100644
index 000000000..d061b1789
--- /dev/null
+++ b/tests/metal/texture-binding-index.slang
@@ -0,0 +1,49 @@
+//TEST:SIMPLE(filecheck=METAL): -stage compute -entry computeMain -target metal
+//TEST:REFLECTION(filecheck=REFLECT): -stage compute -entry computeMain  -target metal
+
+// ------------------------
+Sampler2D sampler;
+
+// METAL-DAG: {{sampler_texture_[1-9]}} {{\[\[}}texture(0)]]
+// METAL-DAG: {{sampler_sampler_[1-9]}} {{\[\[}}sampler(0)]]
+
+// REFLECT: "name": "sampler"
+// REFLECT-NOT:}
+// REFLECT: {"kind": "shaderResource", "index": 0}
+// REFLECT-NOT:}
+// REFLECT: {"kind": "samplerState", "index": 0}
+
+// ------------------------
+Texture2D followingTexture;
+
+// METAL-DAG: {{followingTexture_[1-9]}} {{\[\[}}texture(1)]]
+
+// REFLECT: "name": "followingTexture"
+// REFLECT-NOT:}
+// REFLECT: "binding": {"kind": "shaderResource", "index": 1}
+
+// ------------------------
+SamplerState followingSamplerState;
+
+// METAL-DAG: {{followingSamplerState_[1-9]}} {{\[\[}}sampler(1)]]
+
+// REFLECT: "name": "followingSamplerState"
+// REFLECT-NOT:}
+// REFLECT: "binding": {"kind": "samplerState", "index": 1}
+
+// ------------------------
+Sampler2D explicitBindingSampler : register(t4): register(s3);
+
+// METAL-DAG: {{explicitBindingSampler_texture_[1-9]}} {{\[\[}}texture(4)]]
+// METAL-DAG: {{explicitBindingSampler_sampler_[1-9]}} {{\[\[}}sampler(3)]]
+
+// REFLECT: "name": "explicitBindingSampler"
+// REFLECT-NOT:}
+// REFLECT: {"kind": "shaderResource", "index": 4}
+// REFLECT-NOT:}
+// REFLECT: {"kind": "samplerState", "index": 3}
+
+float4 computeMain() : SV_Target
+{
+    return sampler.Sample(float2(0, 0)) + explicitBindingSampler.Sample(float2(0, 0)) + followingTexture.Sample(followingSamplerState, float2(0,0));
+}