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Allow optimizing memcpy and memset where possible

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Modern C runtimes have well optimized memset and memcpy, so use those instead of dispatching into SDL's versions. In addition, some compilers can analyze memset and memcpy calls and directly turn them into optimized assembly.
This commit is contained in:
Sam Lantinga
2024-01-20 08:12:11 -08:00
parent 8d25c2d260
commit 7a069cc4b0
16 changed files with 390 additions and 220 deletions
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5
VisualC/SDL/SDL.vcxproj
View File

@@ -616,8 +616,11 @@
<ClCompile Include="..\..\src\stdlib\SDL_getenv.c" />
<ClCompile Include="..\..\src\stdlib\SDL_iconv.c" />
<ClCompile Include="..\..\src\stdlib\SDL_malloc.c" />
<ClCompile Include="..\..\src\stdlib\SDL_memcpy.c" />
<ClCompile Include="..\..\src\stdlib\SDL_memmove.c" />
<ClCompile Include="..\..\src\stdlib\SDL_memset.c" />
<ClCompile Include="..\..\src\stdlib\SDL_mslibc.c" />
<MASM Condition="'$(Platform)'=='x64'" Include="..\..\src\stdlib\SDL_mslibc_x64.masm" >
<MASM Condition="'$(Platform)'=='x64'" Include="..\..\src\stdlib\SDL_mslibc_x64.masm">
<PrecompiledHeader>NotUsing</PrecompiledHeader>
</MASM>
<ClCompile Include="..\..\src\stdlib\SDL_qsort.c" />

26
VisualC/SDL/SDL.vcxproj.filters
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@@ -822,6 +822,13 @@
<Filter>render\direct3d12</Filter>
</ClInclude>
<ClInclude Include="..\..\src\hidapi\SDL_hidapi_c.h" />
<ClInclude Include="..\..\src\thread\generic\SDL_sysrwlock_c.h" />
<ClInclude Include="..\..\src\video\yuv2rgb\yuv_rgb_common.h" />
<ClInclude Include="..\..\src\video\yuv2rgb\yuv_rgb_internal.h" />
<ClInclude Include="..\..\src\video\yuv2rgb\yuv_rgb_lsx.h" />
<ClInclude Include="..\..\src\video\yuv2rgb\yuv_rgb_lsx_func.h" />
<ClInclude Include="..\..\src\video\yuv2rgb\yuv_rgb_sse.h" />
<ClInclude Include="..\..\src\video\yuv2rgb\yuv_rgb_std.h" />
</ItemGroup>
<ItemGroup>
<ClCompile Include="..\..\src\audio\wasapi\SDL_wasapi.c" />
@@ -1197,9 +1204,6 @@
<ClCompile Include="..\..\src\video\dummy\SDL_nullvideo.c">
<Filter>video\dummy</Filter>
</ClCompile>
<ClCompile Include="..\..\src\video\yuv2rgb\yuv_rgb.c">
<Filter>video\yuv2rgb</Filter>
</ClCompile>
<ClCompile Include="..\..\src\video\windows\SDL_windowsclipboard.c">
<Filter>video\windows</Filter>
</ClCompile>
@@ -1281,6 +1285,15 @@
<ClCompile Include="..\..\src\stdlib\SDL_malloc.c">
<Filter>stdlib</Filter>
</ClCompile>
<ClCompile Include="..\..\src\stdlib\SDL_memcpy.c">
<Filter>stdlib</Filter>
</ClCompile>
<ClCompile Include="..\..\src\stdlib\SDL_memmove.c">
<Filter>stdlib</Filter>
</ClCompile>
<ClCompile Include="..\..\src\stdlib\SDL_memset.c">
<Filter>stdlib</Filter>
</ClCompile>
<ClCompile Include="..\..\src\stdlib\SDL_qsort.c">
<Filter>stdlib</Filter>
</ClCompile>
@@ -1381,9 +1394,10 @@
<ClCompile Include="..\..\src\stdlib\SDL_mslibc.c">
<Filter>stdlib</Filter>
</ClCompile>
<MASM Include="..\..\src\stdlib\SDL_mslibc_x64.masm">
<Filter>stdlib</Filter>
</MASM>
<ClCompile Include="..\..\src\thread\generic\SDL_sysrwlock.c" />
<ClCompile Include="..\..\src\video\yuv2rgb\yuv_rgb_lsx.c" />
<ClCompile Include="..\..\src\video\yuv2rgb\yuv_rgb_sse.c" />
<ClCompile Include="..\..\src\video\yuv2rgb\yuv_rgb_std.c" />
</ItemGroup>
<ItemGroup>
<ResourceCompile Include="..\..\src\core\windows\version.rc" />