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Code Issues Releases Activity

dct-test: Skip indirection for MMX IDCT permutation

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This commit is contained in:
Diego Biurrun 2014-02-18 12:02:34 +01:00
parent 9e0b29911f
commit 913fa85a2c
1 changed files with 1 additions and 14 deletions
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15
libavcodec/dct-test.c
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@ -128,8 +128,6 @@ static const struct algo idct_tab[] = {
#define NB_ITS 20000
#define NB_ITS_SPEED 50000
static short idct_mmx_perm[64];
static short idct_simple_mmx_perm[64] = {
0x00, 0x08, 0x04, 0x09, 0x01, 0x0C, 0x05, 0x0D,
0x10, 0x18, 0x14, 0x19, 0x11, 0x1C, 0x15, 0x1D,
@ -143,16 +141,6 @@ static short idct_simple_mmx_perm[64] = {
static const uint8_t idct_sse2_row_perm[8] = { 0, 4, 1, 5, 2, 6, 3, 7 };
static void idct_mmx_init(void)
{
int i;
/* the mmx/mmxext idct uses a reordered input, so we patch scan tables */
for (i = 0; i < 64; i++) {
idct_mmx_perm[i] = (i & 0x38) | ((i & 6) >> 1) | ((i & 1) << 2);
}
}
DECLARE_ALIGNED(16, static int16_t, block)[64];
DECLARE_ALIGNED(8, static int16_t, block1)[64];
@ -190,7 +178,7 @@ static void permute(int16_t dst[64], const int16_t src[64], int perm)
if (perm == MMX_PERM) {
for (i = 0; i < 64; i++)
dst[idct_mmx_perm[i]] = src[i];
dst[(i & 0x38) | ((i & 6) >> 1) | ((i & 1) << 2)] = src[i];
} else if (perm == MMX_SIMPLE_PERM) {
for (i = 0; i < 64; i++)
dst[idct_simple_mmx_perm[i]] = src[i];
@ -469,7 +457,6 @@ int main(int argc, char **argv)
int err = 0;
ff_ref_dct_init();
idct_mmx_init();
for (;;) {
c = getopt(argc, argv, "ih4t");