checkasm: add vp9dsp.itxfm_add tests.

This commit is contained in:
Ronald S. Bultje 2015-09-22 14:24:27 -04:00
parent 19b28d047d
commit 0b227c6d47

View File

@ -18,12 +18,15 @@
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <math.h>
#include <string.h>
#include "checkasm.h"
#include "libavcodec/vp9data.h"
#include "libavcodec/vp9dsp.h"
#include "libavutil/common.h"
#include "libavutil/internal.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mathematics.h"
static const uint32_t pixel_mask[3] = { 0xffffffff, 0x03ff03ff, 0x0fff0fff };
#define SIZEOF_PIXEL ((bit_depth + 7) / 8)
@ -94,6 +97,277 @@ static void check_ipred(void)
#undef randomize_buffers
#define randomize_buffers() \
do { \
uint32_t mask = pixel_mask[(bit_depth - 8) >> 1]; \
for (y = 0; y < sz; y++) { \
for (x = 0; x < sz * SIZEOF_PIXEL; x += 4) { \
uint32_t r = rnd() & mask; \
AV_WN32A(dst + y * sz * SIZEOF_PIXEL + x, r); \
AV_WN32A(src + y * sz * SIZEOF_PIXEL + x, rnd() & mask); \
} \
for (x = 0; x < sz; x++) { \
if (bit_depth == 8) { \
coef[y * sz + x] = src[y * sz + x] - dst[y * sz + x]; \
} else { \
((int32_t *) coef)[y * sz + x] = \
((uint16_t *) src)[y * sz + x] - \
((uint16_t *) dst)[y * sz + x]; \
} \
} \
} \
} while(0)
// wht function copied from libvpx
static void fwht_1d(double *out, const double *in, int sz)
{
double t0 = in[0] + in[1];
double t3 = in[3] - in[2];
double t4 = trunc((t0 - t3) * 0.5);
double t1 = t4 - in[1];
double t2 = t4 - in[2];
out[0] = t0 - t2;
out[1] = t2;
out[2] = t3 + t1;
out[3] = t1;
}
// standard DCT-II
static void fdct_1d(double *out, const double *in, int sz)
{
int k, n;
for (k = 0; k < sz; k++) {
out[k] = 0.0;
for (n = 0; n < sz; n++)
out[k] += in[n] * cos(M_PI * (2 * n + 1) * k / (sz * 2.0));
}
out[0] *= M_SQRT1_2;
}
// see "Towards jointly optimal spatial prediction and adaptive transform in
// video/image coding", by J. Han, A. Saxena, and K. Rose
// IEEE Proc. ICASSP, pp. 726-729, Mar. 2010.
static void fadst4_1d(double *out, const double *in, int sz)
{
int k, n;
for (k = 0; k < sz; k++) {
out[k] = 0.0;
for (n = 0; n < sz; n++)
out[k] += in[n] * sin(M_PI * (n + 1) * (2 * k + 1) / (sz * 2.0 + 1.0));
}
}
// see "A Butterfly Structured Design of The Hybrid Transform Coding Scheme",
// by Jingning Han, Yaowu Xu, and Debargha Mukherjee
// http://static.googleusercontent.com/media/research.google.com/en//pubs/archive/41418.pdf
static void fadst_1d(double *out, const double *in, int sz)
{
int k, n;
for (k = 0; k < sz; k++) {
out[k] = 0.0;
for (n = 0; n < sz; n++)
out[k] += in[n] * sin(M_PI * (2 * n + 1) * (2 * k + 1) / (sz * 4.0));
}
}
typedef void (*ftx1d_fn)(double *out, const double *in, int sz);
static void ftx_2d(double *out, const double *in, enum TxfmMode tx,
enum TxfmType txtp, int sz)
{
static const double scaling_factors[5][4] = {
{ 4.0, 16.0 * M_SQRT1_2 / 3.0, 16.0 * M_SQRT1_2 / 3.0, 32.0 / 9.0 },
{ 2.0, 2.0, 2.0, 2.0 },
{ 1.0, 1.0, 1.0, 1.0 },
{ 0.25 },
{ 4.0 }
};
static const ftx1d_fn ftx1d_tbl[5][4][2] = {
{
{ fdct_1d, fdct_1d },
{ fadst4_1d, fdct_1d },
{ fdct_1d, fadst4_1d },
{ fadst4_1d, fadst4_1d },
}, {
{ fdct_1d, fdct_1d },
{ fadst_1d, fdct_1d },
{ fdct_1d, fadst_1d },
{ fadst_1d, fadst_1d },
}, {
{ fdct_1d, fdct_1d },
{ fadst_1d, fdct_1d },
{ fdct_1d, fadst_1d },
{ fadst_1d, fadst_1d },
}, {
{ fdct_1d, fdct_1d },
}, {
{ fwht_1d, fwht_1d },
},
};
double temp[1024];
double scaling_factor = scaling_factors[tx][txtp];
int i, j;
// cols
for (i = 0; i < sz; ++i) {
double temp_out[32];
ftx1d_tbl[tx][txtp][0](temp_out, &in[i * sz], sz);
// scale and transpose
for (j = 0; j < sz; ++j)
temp[j * sz + i] = temp_out[j] * scaling_factor;
}
// rows
for (i = 0; i < sz; i++)
ftx1d_tbl[tx][txtp][1](&out[i * sz], &temp[i * sz], sz);
}
static void ftx(int16_t *buf, enum TxfmMode tx,
enum TxfmType txtp, int sz, int bit_depth)
{
double ind[1024], outd[1024];
int n;
emms_c();
for (n = 0; n < sz * sz; n++) {
if (bit_depth == 8)
ind[n] = buf[n];
else
ind[n] = ((int32_t *) buf)[n];
}
ftx_2d(outd, ind, tx, txtp, sz);
for (n = 0; n < sz * sz; n++) {
if (bit_depth == 8)
buf[n] = lrint(outd[n]);
else
((int32_t *) buf)[n] = lrint(outd[n]);
}
}
static int copy_subcoefs(int16_t *out, const int16_t *in, enum TxfmMode tx,
enum TxfmType txtp, int sz, int sub, int bit_depth)
{
// copy the topleft coefficients such that the return value (being the
// coefficient scantable index for the eob token) guarantees that only
// the topleft $sub out of $sz (where $sz >= $sub) coefficients in both
// dimensions are non-zero. This leads to braching to specific optimized
// simd versions (e.g. dc-only) so that we get full asm coverage in this
// test
int n;
const int16_t *scan = vp9_scans[tx][txtp];
int eob;
for (n = 0; n < sz * sz; n++) {
int rc = scan[n], rcx = rc % sz, rcy = rc / sz;
// find eob for this sub-idct
if (rcx >= sub || rcy >= sub)
break;
// copy coef
if (bit_depth == 8) {
out[rc] = in[rc];
} else {
AV_COPY32(&out[rc * 2], &in[rc * 2]);
}
}
eob = n;
for (; n < sz * sz; n++) {
int rc = scan[n];
// zero
if (bit_depth == 8) {
out[rc] = 0;
} else {
AV_ZERO32(&out[rc * 2]);
}
}
return eob;
}
static int iszero(const int16_t *c, int sz)
{
int n;
for (n = 0; n < sz; n += 4)
if (AV_RN32A(&c[n]))
return 0;
return 1;
}
#define SIZEOF_COEF (2 * ((bit_depth + 7) / 8))
static void check_itxfm(void)
{
LOCAL_ALIGNED_32(uint8_t, src, [32 * 32 * 2]);
LOCAL_ALIGNED_32(uint8_t, dst, [32 * 32 * 2]);
LOCAL_ALIGNED_32(uint8_t, dst0, [32 * 32 * 2]);
LOCAL_ALIGNED_32(uint8_t, dst1, [32 * 32 * 2]);
LOCAL_ALIGNED_32(int16_t, coef, [32 * 32 * 2]);
LOCAL_ALIGNED_32(int16_t, subcoef0, [32 * 32 * 2]);
LOCAL_ALIGNED_32(int16_t, subcoef1, [32 * 32 * 2]);
declare_func(void, uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob);
VP9DSPContext dsp;
int y, x, tx, txtp, bit_depth, sub;
static const char *const txtp_types[N_TXFM_TYPES] = {
[DCT_DCT] = "dct_dct", [DCT_ADST] = "adst_dct",
[ADST_DCT] = "dct_adst", [ADST_ADST] = "adst_adst"
};
for (bit_depth = 8; bit_depth <= 12; bit_depth += 2) {
ff_vp9dsp_init(&dsp, bit_depth, 0);
for (tx = TX_4X4; tx <= N_TXFM_SIZES /* 4 = lossless */; tx++) {
int sz = 4 << (tx & 3);
int n_txtps = tx < TX_32X32 ? N_TXFM_TYPES : 1;
for (txtp = 0; txtp < n_txtps; txtp++) {
if (check_func(dsp.itxfm_add[tx][txtp], "vp9_inv_%s_%dx%d_add_%d",
tx == 4 ? "wht_wht" : txtp_types[txtp], sz, sz,
bit_depth)) {
randomize_buffers();
ftx(coef, tx, txtp, sz, bit_depth);
for (sub = (txtp == 0) ? 1 : sz; sub <= sz; sub <<= 1) {
int eob;
if (sub < sz) {
eob = copy_subcoefs(subcoef0, coef, tx, txtp,
sz, sub, bit_depth);
} else {
eob = sz * sz;
memcpy(subcoef0, coef, sz * sz * SIZEOF_COEF);
}
memcpy(dst0, dst, sz * sz * SIZEOF_PIXEL);
memcpy(dst1, dst, sz * sz * SIZEOF_PIXEL);
memcpy(subcoef1, subcoef0, sz * sz * SIZEOF_COEF);
call_ref(dst0, sz * SIZEOF_PIXEL, subcoef0, eob);
call_new(dst1, sz * SIZEOF_PIXEL, subcoef1, eob);
if (memcmp(dst0, dst1, sz * sz * SIZEOF_PIXEL) ||
!iszero(subcoef0, sz * sz * SIZEOF_COEF) ||
!iszero(subcoef1, sz * sz * SIZEOF_COEF))
fail();
}
bench_new(dst, sz * SIZEOF_PIXEL, coef, sz * sz);
}
}
}
}
report("itxfm");
}
#undef randomize_buffers
#define setpx(a,b,c) \
do { \
if (SIZEOF_PIXEL == 1) { \
@ -343,6 +617,7 @@ static void check_mc(void)
void checkasm_check_vp9dsp(void)
{
check_ipred();
check_itxfm();
check_loopfilter();
check_mc();
}