Add precompiled header

All modern C++ compiler support precompiled headers, add one to increase build performance.

.editorconfig

@@ -1,4 +1,4 @@
-# Copyright (c) Team CharLS.
+# SPDX-FileCopyrightText: © 2016 Team CharLS
 # SPDX-License-Identifier: BSD-3-Clause
 
 root = true
@@ -22,4 +22,7 @@ insert_final_newline = true
 indent_size = 2
 
 [*.manifest]
-indent_size = 2
+indent_size = 2
+
+[*.props, .runsettings]
+indent_size = 2

src/CMakeLists.txt

@@ -32,6 +32,8 @@ if(NOT BUILD_SHARED_LIBS)
   target_compile_definitions(charls PUBLIC CHARLS_STATIC)
 endif()
 
+target_precompile_headers(charls PRIVATE ${CMAKE_CURRENT_LIST_DIR}/pch.hpp)
+
 # Use different DLL filenames on Windows. It allows platform neutral adapters to load dynamically the correct version.
 if(WIN32 AND BUILD_SHARED_LIBS)
   if(CMAKE_SIZEOF_VOID_P EQUAL 8)
@@ -128,6 +130,7 @@ target_sources(charls
     "${CMAKE_CURRENT_LIST_DIR}/lossless_traits.hpp"
     "${CMAKE_CURRENT_LIST_DIR}/make_scan_codec.hpp"
     "${CMAKE_CURRENT_LIST_DIR}/make_scan_codec.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/pch.hpp"
     "${CMAKE_CURRENT_LIST_DIR}/quantization_lut.hpp"
     "${CMAKE_CURRENT_LIST_DIR}/quantization_lut.cpp"
     "${CMAKE_CURRENT_LIST_DIR}/regular_mode_context.hpp"

src/CharLS.vcxproj

@@ -114,8 +114,7 @@
     <ClCompile>
       <PreprocessorDefinitions>CHARLS_LIBRARY_BUILD;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeTypeInfo>false</RuntimeTypeInfo>
-      <PrecompiledHeader>
-      </PrecompiledHeader>
+      <PrecompiledHeader>Use</PrecompiledHeader>
     </ClCompile>
     <Link>
     </Link>
@@ -213,6 +212,9 @@
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="golomb_lut.cpp" />
+    <ClCompile Include="pch.cpp">
+      <PrecompiledHeader>Create</PrecompiledHeader>
+    </ClCompile>
     <ClCompile Include="quantization_lut.cpp" />
     <ClCompile Include="validate_spiff_header.cpp" />
     <ClCompile Include="version.cpp" />
@@ -242,6 +244,7 @@
     <ClInclude Include="color_transform.hpp" />
     <ClInclude Include="conditional_static_cast.hpp" />
     <ClInclude Include="constants.hpp" />
+    <ClInclude Include="pch.hpp" />
     <ClInclude Include="regular_mode_context.hpp" />
     <ClInclude Include="run_mode_context.hpp" />
     <ClInclude Include="copy_to_line_buffer.hpp" />

src/CharLS.vcxproj.filters

@@ -31,8 +31,8 @@
     <ClCompile Include="quantization_lut.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="..\include\charls\charls.ixx">
-      <Filter>Header Files</Filter>
+    <ClCompile Include="pch.cpp">
+      <Filter>Source Files</Filter>
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
@@ -156,6 +156,9 @@
     <ClInclude Include="..\include\charls\undef_macros.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="pch.hpp">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="charls.rc" />
@@ -171,6 +174,9 @@
       <Filter>Design</Filter>
     </None>
     <None Include="packages.config" />
+    <None Include="..\include\charls\charls.ixx">
+      <Filter>Header Files</Filter>
+    </None>
   </ItemGroup>
   <ItemGroup>
     <Filter Include="Header Files">

src/charls_jpegls_decoder.cpp

@@ -1,7 +1,9 @@
-// Copyright (c) Team CharLS.
+// SPDX-FileCopyrightText: © 2019 Team CharLS
 // SPDX-License-Identifier: BSD-3-Clause
 
-#include "charls/charls_jpegls_decoder.h"
+#include "pch.hpp"
+
+#include <charls/charls_jpegls_decoder.h>
 
 #include "constants.hpp"
 #include "jpeg_stream_reader.hpp"

src/charls_jpegls_encoder.cpp

@@ -1,6 +1,8 @@
-// Copyright (c) Team CharLS.
+// SPDX-FileCopyrightText: © 2019 Team CharLS
 // SPDX-License-Identifier: BSD-3-Clause
 
+#include "pch.hpp"
+
 #include "charls/charls_jpegls_encoder.h"
 
 #include "charls/version.h"

src/golomb_lut.cpp

@@ -1,6 +1,8 @@
-// Copyright (c) Team CharLS.
+// SPDX-FileCopyrightText: © 2023 Team CharLS
 // SPDX-License-Identifier: BSD-3-Clause
 
+#include "pch.hpp"
+
 #include "golomb_lut.hpp"
 
 #include "conditional_static_cast.hpp"

src/jpeg_stream_reader.cpp

@@ -1,6 +1,8 @@
-// Copyright (c) Team CharLS.
+// SPDX-FileCopyrightText: © 2009 Team CharLS
 // SPDX-License-Identifier: BSD-3-Clause
 
+#include "pch.hpp"
+
 #include "jpeg_stream_reader.hpp"
 
 #include "color_transform.hpp"

src/jpeg_stream_writer.cpp

@@ -1,6 +1,8 @@
-// Copyright (c) Team CharLS.
+// SPDX-FileCopyrightText: © 2009 Team CharLS
 // SPDX-License-Identifier: BSD-3-Clause
 
+#include "pch.hpp"
+
 #include "jpeg_stream_writer.hpp"
 
 #include "constants.hpp"

src/jpegls_error.cpp

@@ -1,9 +1,9 @@
-// Copyright (c) Team CharLS.
+// SPDX-FileCopyrightText: © 2018 Team CharLS
 // SPDX-License-Identifier: BSD-3-Clause
 
-#include "charls/jpegls_error.hpp"
+#include "pch.hpp"
 
-#include <string>
+#include "charls/jpegls_error.hpp"
 
 namespace charls {
 

src/make_scan_codec.cpp

@@ -1,6 +1,8 @@
-// Copyright (c) Team CharLS.
+// SPDX-FileCopyrightText: © 2009 Team CharLS
 // SPDX-License-Identifier: BSD-3-Clause
 
+#include "pch.hpp"
+
 #include "make_scan_codec.hpp"
 
 #include "default_traits.hpp"

src/pch.cpp

@@ -0,0 +1,4 @@
+// SPDX-FileCopyrightText: © 2025 Team CharLS
+// SPDX-License-Identifier: BSD-3-Clause
+
+#include "pch.hpp"

src/pch.hpp

@@ -0,0 +1,21 @@
+// SPDX-FileCopyrightText: © 2025 Team CharLS
+// SPDX-License-Identifier: BSD-3-Clause
+
+#pragma once
+
+#include <algorithm>
+#include <array>
+#include <cmath>
+#include <cstddef>
+#include <cstdint>
+#include <cstdlib>
+#include <cstring>
+#include <functional>
+#include <limits>
+#include <memory>
+#include <new>
+#include <numeric>
+#include <system_error>
+#include <type_traits>
+#include <utility>
+#include <vector>

src/quantization_lut.cpp

@@ -1,11 +1,12 @@
-// Copyright (c) Team CharLS.
+// SPDX-FileCopyrightText: © 2023 Team CharLS
 // SPDX-License-Identifier: BSD-3-Clause
 
+#include "pch.hpp"
+
 #include "quantization_lut.hpp"
 
-#include "charls/public_types.h"
+#include <charls/public_types.h>
 #include "jpegls_algorithm.hpp"
-
 #include "jpegls_preset_coding_parameters.hpp"
 
 namespace charls {

src/validate_spiff_header.cpp

@@ -1,8 +1,10 @@
-// Copyright (c) Team CharLS.
+// SPDX-FileCopyrightText: © 2022 Team CharLS
 // SPDX-License-Identifier: BSD-3-Clause
 
+#include "pch.hpp"
+
+#include <charls/validate_spiff_header.h>
 
-#include "charls/validate_spiff_header.h"
 #include "util.hpp"
 
 using namespace charls;

src/version.cpp

@@ -1,10 +1,11 @@
-// Copyright (c) Team CharLS.
+// SPDX-FileCopyrightText: © 2019 Team CharLS
 // SPDX-License-Identifier: BSD-3-Clause
 
-#include "charls/version.h"
+#include "pch.hpp"
 
-#include "util.hpp"
+#include <charls/version.h>
 
+#include "util.hpp"
 
 using namespace charls;
 

unittest/CharLSUnitTest.vcxproj

@@ -65,7 +65,7 @@
       <SubSystem>Windows</SubSystem>
       <AdditionalLibraryDirectories>$(SolutionDir)build\intermediate\CharLS\$(Platform)\$(Configuration)\</AdditionalLibraryDirectories>
       <AdditionalLibraryDirectories Condition="'$(Platform)'=='Win32'">$(SolutionDir)build\intermediate\CharLS\x86\$(Configuration)\</AdditionalLibraryDirectories>
-      <AdditionalDependencies>make_scan_codec.obj;jpegls_error.obj;jpeg_stream_writer.obj;jpeg_stream_reader.obj;charls_jpegls_decoder.obj;charls_jpegls_encoder.obj;version.obj;validate_spiff_header.obj;golomb_lut.obj;quantization_lut.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>pch.obj;make_scan_codec.obj;jpegls_error.obj;jpeg_stream_writer.obj;jpeg_stream_reader.obj;charls_jpegls_decoder.obj;charls_jpegls_encoder.obj;version.obj;validate_spiff_header.obj;golomb_lut.obj;quantization_lut.obj;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>