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view src/hermes/HeadMMX.h @ 1982:3b4ce57c6215

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First shot at new audio data types (int32 and float32). Notable changes: - Converters between types are autogenerated. Instead of making multiple passes over the data with seperate filters for endianess, size, signedness, etc, converting between data types is always one specialized filter. This simplifies SDL_BuildAudioCVT(), which otherwise had a million edge cases with the new types, and makes the actually conversions more CPU cache friendly. Left a stub for adding specific optimized versions of these routines (SSE/MMX/Altivec, assembler, etc) - Autogenerated converters are built by SDL/src/audio/sdlgenaudiocvt.pl. This does not need to be run unless tweaking the code, and thus doesn't need integration into the build system. - Went through all the drivers and tried to weed out all the "Uint16" references that are better specified with the new SDL_AudioFormat typedef. - Cleaned out a bunch of hardcoded bitwise magic numbers and replaced them with new SDL_AUDIO_* macros. - Added initial float32 and int32 support code. Theoretically, existing drivers will push these through converters to get the data they want to feed to the hardware. Still TODO: - Optimize and debug new converters. - Update the CoreAudio backend to accept float32 data directly. - Other backends, too? - SDL_LoadWAV() needs to be updated to support int32 and float32 .wav files (both of which exist and can be generated by 'sox' for testing purposes). - Update the mixer to handle new datatypes. - Optionally update SDL_sound and SDL_mixer, etc.
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 24 Aug 2006 12:10:46 +0000
parents c121d94672cb
children
line wrap: on
line source

/*
   Header definitions for the MMX routines for the HERMES library
   Copyright (c) 1998 Christian Nentwich (c.nentwich@cs.ucl.ac.uk)
   This source code is licensed under the GNU LGPL
  
   Please refer to the file COPYING.LIB contained in the distribution for
   licensing conditions
*/
#include "SDL_config.h"

#ifndef __HERMES_HEAD_MMX__
#define __HERMES_HEAD_MMX__


/* If you cannot stand ifdefs, then please do not look into this file, it's
   going to end your life :) */

#ifdef X86_ASSEMBLER


#ifdef __cplusplus
extern "C"
{
#endif

    void STACKCALL ConvertMMX(HermesConverterInterface *);

    void STACKCALL ClearMMX_32(HermesClearInterface *);
    void STACKCALL ClearMMX_24(HermesClearInterface *);
    void STACKCALL ClearMMX_16(HermesClearInterface *);
    void STACKCALL ClearMMX_8(HermesClearInterface *);

    void ConvertMMXpII32_24RGB888();
    void ConvertMMXpII32_16RGB565();
    void ConvertMMXpII32_16BGR565();
    void ConvertMMXpII32_16RGB555();
    void ConvertMMXpII32_16BGR565();
    void ConvertMMXpII32_16BGR555();

    void ConvertMMXp32_16RGB555();

#ifdef __cplusplus
}
#endif



/* Fix the underscore business with ELF compilers */

#if defined(__ELF__) && defined(__GNUC__)
#ifdef __cplusplus
extern "C"
{
#endif

    extern void _ConvertMMX(HermesConverterInterface *);
    extern void _ConvertMMXpII32_24RGB888();
    extern void _ConvertMMXpII32_16RGB565();
    extern void _ConvertMMXpII32_16BGR565();
    extern void _ConvertMMXpII32_16RGB555();
    extern void _ConvertMMXpII32_16BGR555();

#define ConvertMMX _ConvertMMX
#define ConvertMMXpII32_24RGB888 _ConvertMMXpII32_24RGB888
#define ConvertMMXpII32_16RGB565 _ConvertMMXpII32_16RGB565
#define ConvertMMXpII32_16BGR565 _ConvertMMXpII32_16BGR565
#define ConvertMMXpII32_16RGB555 _ConvertMMXpII32_16RGB555
#define ConvertMMXpII32_16BGR555 _ConvertMMXpII32_16BGR555

#ifdef __cplusplus
}
#endif

#endif                          /* ELF and GNUC */




/* Make it work with Watcom */
#ifdef __WATCOMC__
#pragma warning 601 9

#pragma aux ConvertMMX "_*" modify [EAX EBX ECX EDX ESI EDI]

#pragma aux ClearMMX_32 "_*" modify [EAX EBX ECX EDX ESI EDI]
#pragma aux ClearMMX_24 "_*" modify [EAX EBX ECX EDX ESI EDI]
#pragma aux ClearMMX_16 "_*" modify [EAX EBX ECX EDX ESI EDI]
#pragma aux ClearMMX_8 "_*" modify [EAX EBX ECX EDX ESI EDI]

#pragma aux ConvertMMXpII32_24RGB888 "_*"
#pragma aux ConvertMMXpII32_16RGB565 "_*"
#pragma aux ConvertMMXpII32_16BGR565 "_*"
#pragma aux ConvertMMXpII32_16RGB555 "_*"
#pragma aux ConvertMMXpII32_16BGR555 "_*"
#pragma aux ConvertMMXp32_16RGB555 "_*"

#endif                          /* WATCOM */

#endif                          /* X86_ASSEMBLER */


#endif
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