openharmony/third_party_ffmpeg
1
0
Fork 0
mirror of https://gitee.com/openharmony/third_party_ffmpeg synced 2024-11-23 19:30:05 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

dsputil_mmx: put optimized gmc code back and avoid a VLA without loosing features.

Browse Source 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-10-06 22:36:49 +02:00
parent 094a82c7de
commit e063ffbf4b
1 changed files with 54 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
libavcodec/x86/dsputil_mmx.c
View File

@ -1929,10 +1929,15 @@ static av_noinline void emulated_edge_mc_sse(uint8_t *buf, const uint8_t *src,
#if HAVE_INLINE_ASM
static void gmc_mmx(uint8_t *dst, uint8_t *src,
int stride, int h, int ox, int oy,
int dxx, int dxy, int dyx, int dyy,
int shift, int r, int width, int height)
typedef void emulated_edge_mc_func(uint8_t *dst, const uint8_t *src,
int linesize, int block_w, int block_h,
int src_x, int src_y, int w, int h);
static av_always_inline void gmc(uint8_t *dst, uint8_t *src,
int stride, int h, int ox, int oy,
int dxx, int dxy, int dyx, int dyy,
int shift, int r, int width, int height,
emulated_edge_mc_func *emu_edge_fn)
{
const int w = 8;
const int ix = ox >> (16 + shift);
@ -1947,6 +1952,9 @@ static void gmc_mmx(uint8_t *dst, uint8_t *src,
const uint16_t dxy4[4] = { dxys, dxys, dxys, dxys };
const uint16_t dyy4[4] = { dyys, dyys, dyys, dyys };
const uint64_t shift2 = 2 * shift;
#define MAX_STRIDE 4096U
#define MAX_H 8U
uint8_t edge_buf[(MAX_H + 1) * MAX_STRIDE];
int x, y;
const int dxw = (dxx - (1 << (16 + shift))) * (w - 1);
@ -1957,9 +1965,8 @@ static void gmc_mmx(uint8_t *dst, uint8_t *src,
((ox ^ (ox + dxw)) | (ox ^ (ox + dxh)) | (ox ^ (ox + dxw + dxh)) |
(oy ^ (oy + dyw)) | (oy ^ (oy + dyh)) | (oy ^ (oy + dyw + dyh))) >> (16 + shift)
// uses more than 16 bits of subpel mv (only at huge resolution)
|| (dxx | dxy | dyx | dyy) & 15 ||
(unsigned)ix >= width - w ||
(unsigned)iy >= height - h) {
|| (dxx | dxy | dyx | dyy) & 15
|| h > MAX_H || stride > MAX_STRIDE) {
// FIXME could still use mmx for some of the rows
ff_gmc_c(dst, src, stride, h, ox, oy, dxx, dxy, dyx, dyy,
shift, r, width, height);
@ -1967,6 +1974,11 @@ static void gmc_mmx(uint8_t *dst, uint8_t *src,
}
src += ix + iy * stride;
if ((unsigned)ix >= width - w ||
(unsigned)iy >= height - h) {
emu_edge_fn(edge_buf, src, stride, w + 1, h + 1, ix, iy, width, height);
src = edge_buf;
}
__asm__ volatile (
"movd %0, %%mm6 \n\t"
@ -2045,6 +2057,36 @@ static void gmc_mmx(uint8_t *dst, uint8_t *src,
}
}
#if HAVE_YASM
#if ARCH_X86_32
static void gmc_mmx(uint8_t *dst, uint8_t *src,
int stride, int h, int ox, int oy,
int dxx, int dxy, int dyx, int dyy,
int shift, int r, int width, int height)
{
gmc(dst, src, stride, h, ox, oy, dxx, dxy, dyx, dyy, shift, r,
width, height, &emulated_edge_mc_mmx);
}
#endif
static void gmc_sse(uint8_t *dst, uint8_t *src,
int stride, int h, int ox, int oy,
int dxx, int dxy, int dyx, int dyy,
int shift, int r, int width, int height)
{
gmc(dst, src, stride, h, ox, oy, dxx, dxy, dyx, dyy, shift, r,
width, height, &emulated_edge_mc_sse);
}
#else
static void gmc_mmx(uint8_t *dst, uint8_t *src,
int stride, int h, int ox, int oy,
int dxx, int dxy, int dyx, int dyy,
int shift, int r, int width, int height)
{
gmc(dst, src, stride, h, ox, oy, dxx, dxy, dyx, dyy, shift, r,
width, height, &ff_emulated_edge_mc_8);
}
#endif
#define PREFETCH(name, op) \
static void name(void *mem, int stride, int h) \
{ \
@ -2545,7 +2587,9 @@ static void dsputil_init_mmx(DSPContext *c, AVCodecContext *avctx, int mm_flags)
SET_HPEL_FUNCS(avg_no_rnd, 1, 8, mmx);
}
#if ARCH_X86_32 || !HAVE_YASM
c->gmc = gmc_mmx;
#endif
c->add_bytes = add_bytes_mmx;
@ -2800,6 +2844,9 @@ static void dsputil_init_sse(DSPContext *c, AVCodecContext *avctx, int mm_flags)
if (!high_bit_depth)
c->emulated_edge_mc = emulated_edge_mc_sse;
#if HAVE_INLINE_ASM
c->gmc = gmc_sse;
#endif
#endif /* HAVE_YASM */
}