in-progress work: allow render-test to generate and bind various resource inputs for running test shaders with arbitrary parameter definitions.

This commit contains the parser of the resource input definition.

1 files changed, 52 insertions, 0 deletions

diff --git a/tools/render-test/shader-input-layout.h b/tools/render-test/shader-input-layout.h
new file mode 100644
index 000000000..788a72224
--- /dev/null
+++ b/tools/render-test/shader-input-layout.h
@@ -0,0 +1,52 @@
+#ifndef SLANG_TEST_SHADER_INPUT_LAYOUT_H
+#define SLANG_TEST_SHADER_INPUT_LAYOUT_H
+
+#include "core/basic.h"
+
+namespace renderer_test
+{
+    enum class ShaderInputType
+    {
+        Buffer, Texture, Sampler, CombinedTextureSampler
+    };
+    struct InputTextureDesc
+    {
+        int dimension = 2;
+        int arrayLength = 0;
+        bool isCube = false;
+        bool isDepthTexture = false;
+    };
+    enum class InputBufferType
+    {
+        ConstantBuffer, StorageBuffer
+    };
+    struct InputBufferDesc
+    {
+        InputBufferType type = InputBufferType::ConstantBuffer;
+        int stride = 0; // stride == 0 indicates an unstructured buffer.
+    };
+    struct InputSamplerDesc
+    {
+        bool isCompareSampler = false;
+    };
+    class ShaderInputLayoutEntry
+    {
+    public:
+        ShaderInputType type;
+        Slang::List<unsigned int> bufferData;
+        InputTextureDesc textureDesc;
+        InputBufferDesc bufferDesc;
+        InputSamplerDesc samplerDesc;
+        int hlslRegister = -1;
+        int glslBinding = -1;
+        int glslLocation = -1;
+    };
+    class ShaderInputLayout
+    {
+    public:
+        Slang::List<ShaderInputLayoutEntry> entries;
+        void Parse(const char * source);
+    };
+}
+
+#endif
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