view src/hermes/HeadX86.h @ 1982:3b4ce57c6215

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 8055185ae4ed
line wrap: on
line source

/*
   Header definitions for the x86 routines for the HERMES library
   Copyright (c) 1998 Christian Nentwich (brn@eleet.mcb.at)
   This source code is licensed under the GNU LGPL
  
   Please refer to the file COPYING.LIB contained in the distribution for
   licensing conditions
*/

#ifndef __HERMES_HEAD_X86__
#define __HERMES_HEAD_X86__


#ifdef X86_ASSEMBLER

/* If you can't stand IFDEFS, then close your eyes now, please :) */

/* Ok, we start with normal function definitions */
#ifdef __cplusplus
extern "C"
{
#endif


    void STACKCALL ConvertX86(HermesConverterInterface *);
    void STACKCALL ClearX86_32(HermesClearInterface *);
    void STACKCALL ClearX86_24(HermesClearInterface *);
    void STACKCALL ClearX86_16(HermesClearInterface *);
    void STACKCALL ClearX86_8(HermesClearInterface *);

    int STACKCALL Hermes_X86_CPU();

    void ConvertX86p32_32BGR888();
    void ConvertX86p32_32RGBA888();
    void ConvertX86p32_32BGRA888();
    void ConvertX86p32_24RGB888();
    void ConvertX86p32_24BGR888();
    void ConvertX86p32_16RGB565();
    void ConvertX86p32_16BGR565();
    void ConvertX86p32_16RGB555();
    void ConvertX86p32_16BGR555();
    void ConvertX86p32_8RGB332();

    void ConvertX86p16_32RGB888();
    void ConvertX86p16_32BGR888();
    void ConvertX86p16_32RGBA888();
    void ConvertX86p16_32BGRA888();
    void ConvertX86p16_24RGB888();
    void ConvertX86p16_24BGR888();
    void ConvertX86p16_16BGR565();
    void ConvertX86p16_16RGB555();
    void ConvertX86p16_16BGR555();
    void ConvertX86p16_8RGB332();

    void CopyX86p_4byte();
    void CopyX86p_3byte();
    void CopyX86p_2byte();
    void CopyX86p_1byte();

    void ConvertX86pI8_32();
    void ConvertX86pI8_24();
    void ConvertX86pI8_16();

    extern int ConvertX86p16_32RGB888_LUT_X86[512];
    extern int ConvertX86p16_32BGR888_LUT_X86[512];
    extern int ConvertX86p16_32RGBA888_LUT_X86[512];
    extern int ConvertX86p16_32BGRA888_LUT_X86[512];

#ifdef __cplusplus
}
#endif




/* Now fix up the ELF underscore problem */

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

    extern int _Hermes_X86_CPU();

    extern void _ConvertX86(HermesConverterInterface *);

    extern void _ConvertX86p32_32BGR888();
    extern void _ConvertX86p32_32RGBA888();
    extern void _ConvertX86p32_32BGRA888();
    extern void _ConvertX86p32_24RGB888();
    extern void _ConvertX86p32_24BGR888();
    extern void _ConvertX86p32_16RGB565();
    extern void _ConvertX86p32_16BGR565();
    extern void _ConvertX86p32_16RGB555();
    extern void _ConvertX86p32_16BGR555();
    extern void _ConvertX86p32_8RGB332();

    extern void _ConvertX86p16_16BGR565();
    extern void _ConvertX86p16_16RGB555();
    extern void _ConvertX86p16_16BGR555();
    extern void _ConvertX86p16_8RGB332();


#define Hermes_X86_CPU _Hermes_X86_CPU

#define ConvertX86 _ConvertX86

#define ConvertX86p32_32BGR888 _ConvertX86p32_32BGR888
#define ConvertX86p32_32RGBA888 _ConvertX86p32_32RGBA888
#define ConvertX86p32_32BGRA888 _ConvertX86p32_32BGRA888
#define ConvertX86p32_24RGB888 _ConvertX86p32_24RGB888
#define ConvertX86p32_24BGR888 _ConvertX86p32_24BGR888
#define ConvertX86p32_16RGB565 _ConvertX86p32_16RGB565
#define ConvertX86p32_16BGR565 _ConvertX86p32_16BGR565
#define ConvertX86p32_16RGB555 _ConvertX86p32_16RGB555
#define ConvertX86p32_16BGR555 _ConvertX86p32_16BGR555
#define ConvertX86p32_8RGB332 _ConvertX86p32_8RGB332

#define ConvertX86p16_16BGR565 _ConvertX86p16_16BGR565
#define ConvertX86p16_16RGB555 _ConvertX86p16_16RGB555
#define ConvertX86p16_16BGR555 _ConvertX86p16_16BGR555
#define ConvertX86p16_8RGB332 _ConvertX86p16_8RGB332


#ifdef __cplusplus
}
#endif

#endif                          /* ELF & GNU */



/* Make it run with WATCOM C */
#ifdef __WATCOMC__
#pragma warning 601 9

#pragma aux Hermes_X86_CPU "_*"

#pragma aux ConvertX86 "_*" modify [EAX EBX ECX EDX ESI EDI]
#pragma aux ClearX86_32 "_*" modify [EAX EBX ECX EDX ESI EDI]
#pragma aux ClearX86_24 "_*" modify [EAX EBX ECX EDX ESI EDI]
#pragma aux ClearX86_16 "_*" modify [EAX EBX ECX EDX ESI EDI]
#pragma aux ClearX86_8 "_*" modify [EAX EBX ECX EDX ESI EDI]

#pragma aux ConvertX86p32_32BGR888 "_*"
#pragma aux ConvertX86p32_32RGBA888 "_*"
#pragma aux ConvertX86p32_32BGRA888 "_*"
#pragma aux ConvertX86p32_24RGB888 "_*"
#pragma aux ConvertX86p32_24BGR888 "_*"
#pragma aux ConvertX86p32_16RGB565 "_*"
#pragma aux ConvertX86p32_16BGR565 "_*"
#pragma aux ConvertX86p32_16RGB555 "_*"
#pragma aux ConvertX86p32_16BGR555 "_*"
#pragma aux ConvertX86p32_8RGB332 "_*"

#pragma aux ConvertX86p16_32RGB888 "_*"
#pragma aux ConvertX86p16_32BGR888 "_*"
#pragma aux ConvertX86p16_32RGBA888 "_*"
#pragma aux ConvertX86p16_32BGRA888 "_*"
#pragma aux ConvertX86p16_24RGB888 "_*"
#pragma aux ConvertX86p16_24BGR888 "_*"
#pragma aux ConvertX86p16_16BGR565 "_*"
#pragma aux ConvertX86p16_16RGB555 "_*"
#pragma aux ConvertX86p16_16BGR555 "_*"
#pragma aux ConvertX86p16_8RGB332 "_*"

#pragma aux CopyX86p_4byte "_*"
#pragma aux CopyX86p_3byte "_*"
#pragma aux CopyX86p_2byte "_*"
#pragma aux CopyX86p_1byte "_*"

#pragma aux ConvertX86pI8_32 "_*"
#pragma aux ConvertX86pI8_24 "_*"
#pragma aux ConvertX86pI8_16 "_*"

#pragma aux ConvertX86p16_32RGB888_LUT_X86 "_*"
#pragma aux ConvertX86p16_32BGR888_LUT_X86 "_*"
#pragma aux ConvertX86p16_32RGBA888_LUT_X86 "_*"
#pragma aux ConvertX86p16_32BGRA888_LUT_X86 "_*"

#endif                          /* __WATCOMC__ */


#endif                          /* X86_ASSEMBLER */


#endif
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