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platform-independent restructuring and code simplification

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patch by Marc Hoffman, mmh pleasantst com

Originally committed as revision 8576 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Marc Hoffman 2007-03-31 17:24:09 +00:00 committed by Diego Biurrun
parent c6bdc90890
commit 3ac35bdb3e
1 changed files with 68 additions and 37 deletions
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105
libavcodec/dct-test.c
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@ -1,5 +1,6 @@
/*
* (c) 2001 Fabrice Bellard
* 2007 Marc Hoffman <marc.hoffman@analog.com>
*
* This file is part of FFmpeg.
*
@ -56,6 +57,64 @@ extern void ff_mmxext_idct(DCTELEM *data);
extern void odivx_idct_c (short *block);
// BFIN
extern void ff_bfin_idct (DCTELEM *block) ;
extern void ff_bfin_fdct (DCTELEM *block) ;
// ALTIVEC
extern void fdct_altivec (DCTELEM *block);
//extern void idct_altivec (DCTELEM *block);?? no routine
struct algo {
char *name;
enum { FDCT, IDCT } is_idct;
void (* func) (DCTELEM *block);
void (* ref) (DCTELEM *block);
enum formattag { NO_PERM,MMX_PERM, MMX_SIMPLE_PERM, SCALE_PERM } format;
};
#ifndef FAAN_POSTSCALE
#define FAAN_SCALE SCALE_PERM
#else
#define FAAN_SCALE NO_PERM
#endif
#define DCT_ERROR(name,is_idct,func,ref,form) {name,is_idct,func,ref,form}
struct algo algos[] = {
DCT_ERROR( "REF-DBL", 0, fdct, fdct, NO_PERM),
DCT_ERROR("IJG-AAN-INT", 0, fdct_ifast, fdct, SCALE_PERM),
DCT_ERROR("IJG-LLM-INT", 0, ff_jpeg_fdct_islow, fdct, NO_PERM),
DCT_ERROR("REF-DBL", 1, idct, idct, NO_PERM),
DCT_ERROR("INT", 1, j_rev_dct, idct, MMX_PERM),
DCT_ERROR("SIMPLE-C", 1, simple_idct, idct, NO_PERM),
#ifdef ARCH_X86
DCT_ERROR("MMX", 0, ff_fdct_mmx, fdct, NO_PERM),
DCT_ERROR("MMX2", 0, ff_fdct_mmx2, fdct, NO_PERM),
DCT_ERROR("FAAN", 0, ff_faandct, fdct, FAAN_SCALE),
DCT_ERROR("LIBMPEG2-MMX", 1, ff_mmx_idct, idct, MMX_PERM),
DCT_ERROR("LIBMPEG2-MMXEXT", 1, ff_mmxext_idct, idct, MMX_PERM),
DCT_ERROR("SIMPLE-MMX", 1, ff_simple_idct_mmx, idct, MMX_SIMPLE_PERM),
DCT_ERROR("XVID-MMX", 1, ff_idct_xvid_mmx, idct, NO_PERM),
DCT_ERROR("XVID-MMX2", 1, ff_idct_xvid_mmx2, idct, NO_PERM),
#endif
#ifdef HAVE_ALTIVEC
DCT_ERROR("altivecfdct", 0, fdct_altivec, fdct, NO_PERM),
#endif
#ifdef ARCH_BFIN
DCT_ERROR("BFINfdct", 0, ff_bfin_fdct, fdct, NO_PERM),
DCT_ERROR("BFINidct", 1, ff_bfin_idct, idct, NO_PERM),
#endif
{ 0 }
};
#define AANSCALE_BITS 12
static const unsigned short aanscales[64] = {
/* precomputed values scaled up by 14 bits */
@ -111,7 +170,7 @@ static DCTELEM block_org[64] __attribute__ ((aligned (8)));
void dct_error(const char *name, int is_idct,
void (*fdct_func)(DCTELEM *block),
void (*fdct_ref)(DCTELEM *block), int test)
void (*fdct_ref)(DCTELEM *block), int form, int test)
{
int it, i, scale;
int err_inf, v;
@ -162,11 +221,10 @@ void dct_error(const char *name, int is_idct,
for(i=0; i<64; i++)
block_org[i]= block1[i];
if (fdct_func == ff_mmx_idct ||
fdct_func == j_rev_dct || fdct_func == ff_mmxext_idct) {
if (form == MMX_PERM) {
for(i=0;i<64;i++)
block[idct_mmx_perm[i]] = block1[i];
} else if(fdct_func == ff_simple_idct_mmx ) {
} else if (form == MMX_SIMPLE_PERM) {
for(i=0;i<64;i++)
block[idct_simple_mmx_perm[i]] = block1[i];
@ -186,11 +244,7 @@ void dct_error(const char *name, int is_idct,
fdct_func(block);
emms_c(); /* for ff_mmx_idct */
if (fdct_func == fdct_ifast
#ifndef FAAN_POSTSCALE
|| fdct_func == ff_faandct
#endif
) {
if (form == SCALE_PERM) {
for(i=0; i<64; i++) {
scale = 8*(1 << (AANSCALE_BITS + 11)) / aanscales[i];
block[i] = (block[i] * scale /*+ (1<<(AANSCALE_BITS-1))*/) >> AANSCALE_BITS;
@ -261,11 +315,10 @@ void dct_error(const char *name, int is_idct,
}break;
}
if (fdct_func == ff_mmx_idct ||
fdct_func == j_rev_dct || fdct_func == ff_mmxext_idct) {
if (form == MMX_PERM) {
for(i=0;i<64;i++)
block[idct_mmx_perm[i]] = block1[i];
} else if(fdct_func == ff_simple_idct_mmx ) {
} else if(form == MMX_SIMPLE_PERM) {
for(i=0;i<64;i++)
block[idct_simple_mmx_perm[i]] = block1[i];
} else {
@ -503,31 +556,9 @@ int main(int argc, char **argv)
if (test_248_dct) {
idct248_error("SIMPLE-C", simple_idct248_put);
} else {
if (!test_idct) {
dct_error("REF-DBL", 0, fdct, fdct, test); /* only to verify code ! */
dct_error("IJG-AAN-INT", 0, fdct_ifast, fdct, test);
dct_error("IJG-LLM-INT", 0, ff_jpeg_fdct_islow, fdct, test);
dct_error("MMX", 0, ff_fdct_mmx, fdct, test);
dct_error("MMX2", 0, ff_fdct_mmx2, fdct, test);
dct_error("FAAN", 0, ff_faandct, fdct, test);
} else {
dct_error("REF-DBL", 1, idct, idct, test);
dct_error("INT", 1, j_rev_dct, idct, test);
dct_error("LIBMPEG2-MMX", 1, ff_mmx_idct, idct, test);
dct_error("LIBMPEG2-MMXEXT", 1, ff_mmxext_idct, idct, test);
dct_error("SIMPLE-C", 1, simple_idct, idct, test);
dct_error("SIMPLE-MMX", 1, ff_simple_idct_mmx, idct, test);
dct_error("XVID-MMX", 1, ff_idct_xvid_mmx, idct, test);
dct_error("XVID-MMX2", 1, ff_idct_xvid_mmx2, idct, test);
// dct_error("ODIVX-C", 1, odivx_idct_c, idct);
//printf(" test against odivx idct\n");
// dct_error("REF", 1, idct, odivx_idct_c);
// dct_error("INT", 1, j_rev_dct, odivx_idct_c);
// dct_error("MMX", 1, ff_mmx_idct, odivx_idct_c);
// dct_error("MMXEXT", 1, ff_mmxext_idct, odivx_idct_c);
// dct_error("SIMPLE-C", 1, simple_idct, odivx_idct_c);
// dct_error("SIMPLE-MMX", 1, ff_simple_idct_mmx, odivx_idct_c);
// dct_error("ODIVX-C", 1, odivx_idct_c, odivx_idct_c);
for (i=0;algos[i].name;i++)
if (algos[i].is_idct == test_idct) {
dct_error (algos[i].name, algos[i].is_idct, algos[i].func, algos[i].ref, algos[i].format, test);
}
}
return 0;