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Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h

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--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40740
This commit is contained in:
Sam Lantinga 2003-11-18 01:27:06 +00:00
parent ccba9fd074
commit 9842d74f34
19 changed files with 2977 additions and 104 deletions
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23
src/audio/SDL_mixer.c
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@ -34,28 +34,13 @@ static char rcsid =
#include "SDL_audio.h"
#include "SDL_mutex.h"
#include "SDL_timer.h"
#include "SDL_cpuinfo.h"
#include "SDL_sysaudio.h"
#include "SDL_cpuinfo.h"
#include "SDL_mixer_MMX.h"
#include "SDL_mixer_MMX_VC.h"
#include "SDL_mixer_m68k.h"
/* Function to check the CPU flags */
#define MMX_CPU 0x800000
#ifdef USE_ASMBLIT
#define CPU_Flags() Hermes_X86_CPU()
#else
#define CPU_Flags() 0L
#endif
#ifdef USE_ASMBLIT
#define X86_ASSEMBLER
#define HermesConverterInterface void
#define HermesClearInterface void
#define STACKCALL
#include "HeadX86.h"
#endif
/* This table is used to add two sound values together and pin
* the value to avoid overflow. (used with permission from ARDI)
* Changed to use 0xFE instead of 0xFF for better sound quality.
@ -154,7 +139,7 @@ void SDL_MixAudio (Uint8 *dst, const Uint8 *src, Uint32 len, int volume)
case AUDIO_S8: {
#if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT)
if (CPU_Flags() & MMX_CPU)
if (SDL_HasMMX())
{
SDL_MixAudio_MMX_S8((char*)dst,(char*)src,(unsigned int)len,(int)volume);
}
@ -201,7 +186,7 @@ void SDL_MixAudio (Uint8 *dst, const Uint8 *src, Uint32 len, int volume)
case AUDIO_S16LSB: {
#if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT)
if (CPU_Flags() & MMX_CPU)
if (SDL_HasMMX())
{
SDL_MixAudio_MMX_S16((char*)dst,(char*)src,(unsigned int)len,(int)volume);
}