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Enabled 3DNow! intrinsic support

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slouken committed Aug 17, 2007
1 parent 3ac030b commit f49163b62f3d8681080358f94c76a333b64d7247
Showing with 44 additions and 5 deletions.
  1. +2 −2 VisualC/SDL/SDL.vcproj
  2. +32 −0 configure.in
  3. +3 −0 src/video/SDL_blit.h
  4. +7 −3 src/video/SDL_blit_A.c
@@ -47,7 +47,7 @@
Name="VCCLCompilerTool"
Optimization="0"
AdditionalIncludeDirectories="..\..\include"
PreprocessorDefinitions="_DEBUG;_WINDOWS;_WIN32_WINNT=0x0400;__SSE__;__MMX__"
PreprocessorDefinitions="_DEBUG;_WINDOWS;_WIN32_WINNT=0x0400;__MMX__;__3dNOW__;__SSE__"
RuntimeLibrary="2"
BufferSecurityCheck="false"
UsePrecompiledHeader="0"
@@ -145,7 +145,7 @@
InlineFunctionExpansion="1"
EnableIntrinsicFunctions="false"
AdditionalIncludeDirectories="..\..\include"
PreprocessorDefinitions="NDEBUG;_WINDOWS;_WIN32_WINNT=0x0400;__SSE__;__MMX__"
PreprocessorDefinitions="NDEBUG;_WINDOWS;_WIN32_WINNT=0x0400;__MMX__;__3dNOW__;__SSE__"
StringPooling="true"
RuntimeLibrary="2"
BufferSecurityCheck="false"
@@ -290,6 +290,9 @@ AC_HELP_STRING([--enable-mmx], [use MMX assembly routines [[default=yes]]]),

AC_TRY_COMPILE([
#include <mmintrin.h>
#ifndef __MMX__
#error Assembler CPP flag not enabled
#endif
],[
],[
have_gcc_mmx=yes
@@ -301,6 +304,32 @@ AC_HELP_STRING([--enable-mmx], [use MMX assembly routines [[default=yes]]]),
fi
fi

AC_ARG_ENABLE(3dnow,
AC_HELP_STRING([--enable-3dnow], [use MMX assembly routines [[default=yes]]]),
, enable_3dnow=yes)
if test x$enable_3dnow = xyes; then
save_CFLAGS="$CFLAGS"
have_gcc_3dnow=no
AC_MSG_CHECKING(for GCC -m3dnow option)
amd3dnow_CFLAGS="-m3dnow"
CFLAGS="$save_CFLAGS $amd3dnow_CFLAGS"

AC_TRY_COMPILE([
#include <mm3dnow.h>
#ifndef __3dNOW__
#error Assembler CPP flag not enabled
#endif
],[
],[
have_gcc_3dnow=yes
])
AC_MSG_RESULT($have_gcc_3dnow)

if test x$have_gcc_3dnow = xyes; then
EXTRA_CFLAGS="$EXTRA_CFLAGS $amd3dnow_CFLAGS"
fi
fi

AC_ARG_ENABLE(sse,
AC_HELP_STRING([--enable-sse], [use SSE assembly routines [[default=yes]]]),
, enable_sse=yes)
@@ -313,6 +342,9 @@ AC_HELP_STRING([--enable-sse], [use SSE assembly routines [[default=yes]]]),

AC_TRY_COMPILE([
#include <xmmintrin.h>
#ifndef __SSE__
#error Assembler CPP flag not enabled
#endif
],[
],[
have_gcc_sse=yes
@@ -27,6 +27,9 @@
#ifdef __MMX__
#include <mmintrin.h>
#endif
#ifdef __3dNOW__
#include <mm3dnow.h>
#endif
#ifdef __SSE__
#include <xmmintrin.h>
#endif
@@ -1369,7 +1369,7 @@ BlitRGBtoRGBPixelAlpha(SDL_BlitInfo * info)
}
}

#ifdef __MMX__
#ifdef __3dNOW__
/* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */
static void
BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo * info)
@@ -2250,17 +2250,21 @@ SDL_CalculateAlphaBlit(SDL_Surface * surface, int blit_index)
if (sf->Rmask == df->Rmask
&& sf->Gmask == df->Gmask
&& sf->Bmask == df->Bmask && sf->BytesPerPixel == 4) {
#ifdef __MMX__
#if defined(__MMX__) || defined(__3dNOW__)
if (sf->Rshift % 8 == 0
&& sf->Gshift % 8 == 0
&& sf->Bshift % 8 == 0
&& sf->Ashift % 8 == 0 && sf->Aloss == 0) {
#ifdef __3dNOW__
if (SDL_Has3DNow())
return BlitRGBtoRGBPixelAlphaMMX3DNOW;
#endif
#ifdef __MMX__
if (SDL_HasMMX())
return BlitRGBtoRGBPixelAlphaMMX;
}
#endif
}
#endif /* __MMX__ || __3dNOW__ */
if (sf->Amask == 0xff000000) {
#if SDL_ALTIVEC_BLITTERS
if (SDL_HasAltiVec())

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