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MIPS: dspr2: added optimization for function TrueMotion

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Change-Id: Id006d9591c0c922e28f7f4c01e4006f0f07bdd56
This commit is contained in:
Djordje Pesut 2014-12-11 13:29:17 +01:00
parent 26106d662e
commit 9275d91c79
1 changed files with 57 additions and 32 deletions
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89
src/dsp/enc_mips_dsp_r2.c
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@ -328,24 +328,6 @@ static int Disto16x16(const uint8_t* const a, const uint8_t* const b,
//------------------------------------------------------------------------------
// Intra predictions
static WEBP_INLINE uint8_t clip_8b(int v) {
return (!(v & ~0xff)) ? v : (v < 0) ? 0 : 255;
}
static uint8_t clip1[255 + 510 + 1]; // clips [-255,510] to [0,255]
static volatile int tables_ok = 0;
static void InitTables(void) {
if (!tables_ok) {
int i;
for (i = -255; i <= 255 + 255; ++i) {
clip1[255 + i] = clip_8b(i);
}
tables_ok = 1;
}
}
#define FILL_PART(J, SIZE) \
"usw %[value], 0+"#J"*"XSTR(BPS)"(%[dst]) \n\t" \
"usw %[value], 4+"#J"*"XSTR(BPS)"(%[dst]) \n\t" \
@ -416,21 +398,62 @@ HORIZONTAL_PRED(dst, left, 16)
#undef HORIZONTAL_PRED
#define CLIPPING() \
"preceu.ph.qbl %[temp2], %[temp0] \n\t" \
"preceu.ph.qbr %[temp0], %[temp0] \n\t" \
"preceu.ph.qbl %[temp3], %[temp1] \n\t" \
"preceu.ph.qbr %[temp1], %[temp1] \n\t" \
"addu.ph %[temp2], %[temp2], %[leftY_1] \n\t" \
"addu.ph %[temp0], %[temp0], %[leftY_1] \n\t" \
"addu.ph %[temp3], %[temp3], %[leftY_1] \n\t" \
"addu.ph %[temp1], %[temp1], %[leftY_1] \n\t" \
"shll_s.ph %[temp2], %[temp2], 7 \n\t" \
"shll_s.ph %[temp0], %[temp0], 7 \n\t" \
"shll_s.ph %[temp3], %[temp3], 7 \n\t" \
"shll_s.ph %[temp1], %[temp1], 7 \n\t" \
"precrqu_s.qb.ph %[temp0], %[temp2], %[temp0] \n\t" \
"precrqu_s.qb.ph %[temp1], %[temp3], %[temp1] \n\t"
#define CLIP_8B_TO_DST(DST, LEFT, TOP, SIZE) do { \
int leftY_1 = ((int)(LEFT)[y] << 16) + (LEFT)[y]; \
int temp0, temp1, temp2, temp3; \
__asm__ volatile ( \
"replv.ph %[leftY_1], %[leftY_1] \n\t" \
"ulw %[temp0], 0(%[top]) \n\t" \
"ulw %[temp1], 4(%[top]) \n\t" \
"subu.ph %[leftY_1], %[leftY_1], %[left_1] \n\t" \
CLIPPING() \
"usw %[temp0], 0(%[dst]) \n\t" \
"usw %[temp1], 4(%[dst]) \n\t" \
".if "#SIZE" == 16 \n\t" \
"ulw %[temp0], 8(%[top]) \n\t" \
"ulw %[temp1], 12(%[top]) \n\t" \
CLIPPING() \
"usw %[temp0], 8(%[dst]) \n\t" \
"usw %[temp1], 12(%[dst]) \n\t" \
".endif \n\t" \
: [leftY_1]"+&r"(leftY_1), [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), \
[temp2]"=&r"(temp2), [temp3]"=&r"(temp3) \
: [left_1]"r"(left_1), [top]"r"((TOP)), [dst]"r"((DST)) \
: "memory" \
); \
} while (0)
#define CLIP_TO_DST(DST, LEFT, TOP, SIZE) do { \
int y; \
const int left_1 = ((int)(LEFT)[-1] << 16) + (LEFT)[-1]; \
for (y = 0; y < (SIZE); ++y) { \
CLIP_8B_TO_DST((DST), (LEFT), (TOP), (SIZE)); \
(DST) += BPS; \
} \
} while (0)
#define TRUE_MOTION(DST, LEFT, TOP, SIZE) \
static WEBP_INLINE void TrueMotion##SIZE(uint8_t* (DST), const uint8_t* (LEFT),\
const uint8_t* (TOP)) { \
int y; \
if (LEFT) { \
if (TOP) { \
const uint8_t* const clip = clip1 + 255 - (LEFT)[-1]; \
for (y = 0; y < (SIZE); ++y) { \
const uint8_t* const clip_table = clip + (LEFT)[y]; \
int x; \
for (x = 0; x < (SIZE); ++x) { \
(DST)[x] = clip_table[(TOP)[x]]; \
} \
(DST) += BPS; \
} \
if ((LEFT) != NULL) { \
if ((TOP) != NULL) { \
CLIP_TO_DST((DST), (LEFT), (TOP), (SIZE)); \
} else { \
HorizontalPred##SIZE((DST), (LEFT)); \
} \
@ -439,7 +462,7 @@ static WEBP_INLINE void TrueMotion##SIZE(uint8_t* (DST), const uint8_t* (LEFT),\
/* is equivalent to VE prediction where you just copy the top samples. */ \
/* Note that if top samples are not available, the default value is */ \
/* then 129, and not 127 as in the VerticalPred case. */ \
if (TOP) { \
if ((TOP) != NULL) { \
VerticalPred##SIZE((DST), (TOP)); \
} else { \
FILL_8_OR_16((DST), 129, (SIZE)); \
@ -451,6 +474,9 @@ TRUE_MOTION(dst, left, top, 8)
TRUE_MOTION(dst, left, top, 16)
#undef TRUE_MOTION
#undef CLIP_TO_DST
#undef CLIP_8B_TO_DST
#undef CLIPPING
static WEBP_INLINE void DCMode16(uint8_t* dst, const uint8_t* left,
const uint8_t* top) {
@ -607,7 +633,6 @@ extern WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitMIPSdspR2(void);
WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitMIPSdspR2(void) {
#if defined(WEBP_USE_MIPS_DSP_R2)
InitTables();
VP8FTransform = FTransform;
VP8ITransform = ITransform;
VP8TDisto4x4 = Disto4x4;