From 8c4603c73675958efc960fbd4bb599a2909d106a Mon Sep 17 00:00:00 2001
From: Konstantin <const@const.me>
Date: Mon, 16 Jan 2023 14:52:43 +0100
Subject: Source codes

---
 Whisper/ML/LookupTables.cpp | 54 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 Whisper/ML/LookupTables.cpp

(limited to 'Whisper/ML/LookupTables.cpp')

diff --git a/Whisper/ML/LookupTables.cpp b/Whisper/ML/LookupTables.cpp
new file mode 100644
index 0000000..2fc1cc8
--- /dev/null
+++ b/Whisper/ML/LookupTables.cpp
@@ -0,0 +1,54 @@
+#include "stdafx.h"
+#include "LookupTables.h"
+#include "LookupTablesData.h"
+#include <memory>
+using namespace DirectCompute;
+
+namespace
+{
+	HRESULT uploadLookupTable( const std::array<uint16_t, 0x10000>& rsi, CComPtr<ID3D11ShaderResourceView>& rdi )
+	{
+		rdi = nullptr;
+		CComPtr<ID3D11Buffer> buffer;
+
+		CD3D11_BUFFER_DESC desc{ 0x10000 * 2, D3D11_BIND_SHADER_RESOURCE, D3D11_USAGE_IMMUTABLE };
+		D3D11_SUBRESOURCE_DATA srd{ rsi.data(), 0, 0 };
+		CHECK( device()->CreateBuffer( &desc, &srd, &buffer ) );
+
+		CD3D11_SHADER_RESOURCE_VIEW_DESC viewDesc{ D3D11_SRV_DIMENSION_BUFFER, DXGI_FORMAT_R16_UINT, 0, 0x10000 };
+		CHECK( device()->CreateShaderResourceView( buffer, &viewDesc, &rdi ) );
+
+		return S_OK;
+	}
+}
+
+HRESULT LookupTables::create()
+{
+	std::unique_ptr<LookupTablesData> data;
+	try
+	{
+		data = std::make_unique<LookupTablesData>();
+	}
+	catch( const std::bad_alloc& )
+	{
+		return E_OUTOFMEMORY;
+	}
+
+	CHECK( uploadLookupTable( data->gelu, m_gelu ) );
+	CHECK( uploadLookupTable( data->exponent, m_exponent ) );
+
+	return S_OK;
+}
+
+void LookupTables::clear()
+{
+	m_gelu = nullptr;
+	m_exponent = nullptr;
+}
+
+__m128i LookupTables::getMemoryUsage() const
+{
+	__m128i v = resourceMemoryUsage( m_gelu );
+	v = _mm_add_epi64( v, resourceMemoryUsage( m_exponent ) );
+	return v;
+}
\ No newline at end of file
-- 
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