From 187ec444486ecf24d1baf897d179de4ee1b6b864 Mon Sep 17 00:00:00 2001
From: Jay Kwak <82421531+jkwak-work@users.noreply.github.com>
Date: Wed, 19 Feb 2025 22:17:30 -0800
Subject: Support for dynamic array of textures access for Texture footprint.
 (#6392)

* Support for dynamic array of textures access for Texture footprint.

* Do a check for DXIL for dynamic array/footprint.

* format code (#40)

---------

Co-authored-by: jsmall-nvidia <jsmall@nvidia.com>
Co-authored-by: slangbot <ellieh+slangbot@nvidia.com>
Co-authored-by: Yong He <yonghe@outlook.com>
---
 .../nv-shader-texture-footprint-array.slang        | 76 ++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 tests/gpu-feature/texture/query/footprint/nv-shader-texture-footprint-array.slang

(limited to 'tests')

diff --git a/tests/gpu-feature/texture/query/footprint/nv-shader-texture-footprint-array.slang b/tests/gpu-feature/texture/query/footprint/nv-shader-texture-footprint-array.slang
new file mode 100644
index 000000000..dc60cf263
--- /dev/null
+++ b/tests/gpu-feature/texture/query/footprint/nv-shader-texture-footprint-array.slang
@@ -0,0 +1,76 @@
+//DISABLE_TEST:SIMPLE:-target dxil-assembly -entry fragmentMain -profile sm_6_5 -stage fragment -DNV_SHADER_EXTN_SLOT=u0 
+
+//TEST:SIMPLE(filecheck=SPIRV):-target spirv-assembly -entry fragmentMain -stage fragment
+//TEST:SIMPLE(filecheck=DXIL):-target dxil-assembly -entry fragmentMain -profile sm_6_5 -stage fragment -DNV_SHADER_EXTN_SLOT=u0 
+//TEST:SIMPLE(filecheck=HLSL):-target hlsl -entry fragmentMain -stage fragment
+
+//DISABLED_TEST:SIMPLE:-target spirv-assembly -entry fragmentMain -stage fragment
+//DISABLED_TEST:SIMPLE:-target dxil-assembly -entry fragmentMain -stage fragment
+//DISABLED_TEST:SIMPLE:-target hlsl -entry fragmentMain -stage fragment
+
+uniform Texture2D textures[] : register(t2, space10);
+uniform SamplerState sampler;
+uniform RWStructuredBuffer<uint> outputBuffer;
+
+static Texture2D _getBindlessTexture2d(uint texIdx)
+{
+    return textures[NonUniformResourceIndex(texIdx)];
+}
+
+void accumulate(inout uint r, uint u)
+{
+    r = r ^ u;
+}
+
+void accumulate(inout uint r, bool b)
+{
+    accumulate(r, uint(b));
+}
+
+void accumulate(inout uint r, uint2 u)
+{
+    accumulate(r, u.x);
+    accumulate(r, u.y);
+}
+
+void accumulate(inout uint r, uint3 u)
+{
+    accumulate(r, u.x);
+    accumulate(r, u.y);
+    accumulate(r, u.z);
+}
+
+void accumulate(inout uint r, TextureFootprint2D f)
+{
+    accumulate(r, f.anchor);
+    accumulate(r, f.offset);
+    accumulate(r, f.mask);
+    accumulate(r, f.lod);
+    accumulate(r, f.granularity);
+    accumulate(r, f.isSingleLevel);
+}
+
+cbuffer Uniforms
+{
+    uniform float2 coords;
+    uniform uint granularity;
+};
+
+void fragmentMain(
+    float v : VARYING)
+{
+    uint index = uint(v);
+    uint r = 0;
+
+    accumulate(r, _getBindlessTexture2d(index).queryFootprintCoarse(granularity, sampler, coords));
+
+// SPIRV: Extension  "SPV_NV_shader_image_footprint"
+// SPIRV: ImageSampleFootprintNV
+
+// DXIL: struct struct.NvShaderExtnStruct
+
+// HLSL: NvFootprintCoarse
+
+    outputBuffer[index] = r;
+}
+
-- 
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