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Added MSA optimized intra prediction 4x4 functions

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1. DC4
2. TM4
3. VE4
4. RD4
5. LD4

Change-Id: Ib73131f9174aac13443160d2c2add1af90a3bd45
This commit is contained in:
Parag Salasakar 2016-06-23 15:38:47 +05:30 committed by Pascal Massimino
parent a6621bacf3
commit 0afa0ce2ff
2 changed files with 123 additions and 0 deletions
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108
src/dsp/dec_msa.c
View File

@ -670,6 +670,108 @@ static void SimpleHFilter16i(uint8_t* src_y, int stride, int b_limit_in) {
SimpleHFilter16(src_y + 12, stride, b_limit_in);
}
//------------------------------------------------------------------------------
// Intra predictions
//------------------------------------------------------------------------------
// 4x4
static void DC4(uint8_t* dst) { // DC
uint32_t dc = 4;
int i;
for (i = 0; i < 4; ++i) dc += dst[i - BPS] + dst[-1 + i * BPS];
dc >>= 3;
dc = dc | (dc << 8) | (dc << 16) | (dc << 24);
SW4(dc, dc, dc, dc, dst, BPS);
}
static void TM4(uint8_t* dst) {
const uint8_t* const ptemp = dst - BPS - 1;
v8i16 T, d, r0, r1, r2, r3;
const v16i8 zero = { 0 };
const v8i16 TL = (v8i16)__msa_fill_h(ptemp[0 * BPS]);
const v8i16 L0 = (v8i16)__msa_fill_h(ptemp[1 * BPS]);
const v8i16 L1 = (v8i16)__msa_fill_h(ptemp[2 * BPS]);
const v8i16 L2 = (v8i16)__msa_fill_h(ptemp[3 * BPS]);
const v8i16 L3 = (v8i16)__msa_fill_h(ptemp[4 * BPS]);
const v16u8 T1 = LD_UB(ptemp + 1);
T = (v8i16)__msa_ilvr_b(zero, (v16i8)T1);
d = T - TL;
ADD4(d, L0, d, L1, d, L2, d, L3, r0, r1, r2, r3);
CLIP_SH4_0_255(r0, r1, r2, r3);
PCKEV_ST4x4_UB(r0, r1, r2, r3, dst, BPS);
}
static void VE4(uint8_t* dst) { // vertical
const uint8_t* const ptop = dst - BPS - 1;
const uint32_t val0 = LW(ptop + 0);
const uint32_t val1 = LW(ptop + 4);
uint32_t out;
v16u8 A, B, C, AC, B2, R;
INSERT_W2_UB(val0, val1, A);
B = SLDI_UB(A, A, 1);
C = SLDI_UB(A, A, 2);
AC = __msa_ave_u_b(A, C);
B2 = __msa_ave_u_b(B, B);
R = __msa_aver_u_b(AC, B2);
out = __msa_copy_s_w((v4i32)R, 0);
SW4(out, out, out, out, dst, BPS);
}
static void RD4(uint8_t* dst) { // Down-right
const uint8_t* const ptop = dst - 1 - BPS;
uint32_t val0 = LW(ptop + 0);
uint32_t val1 = LW(ptop + 4);
uint32_t val2, val3;
v16u8 A, B, C, AC, B2, R, A1;
INSERT_W2_UB(val0, val1, A1);
A = SLDI_UB(A1, A1, 12);
A = (v16u8)__msa_insert_b((v16i8)A, 3, ptop[1 * BPS]);
A = (v16u8)__msa_insert_b((v16i8)A, 2, ptop[2 * BPS]);
A = (v16u8)__msa_insert_b((v16i8)A, 1, ptop[3 * BPS]);
A = (v16u8)__msa_insert_b((v16i8)A, 0, ptop[4 * BPS]);
B = SLDI_UB(A, A, 1);
C = SLDI_UB(A, A, 2);
AC = __msa_ave_u_b(A, C);
B2 = __msa_ave_u_b(B, B);
R = __msa_aver_u_b(AC, B2);
val3 = __msa_copy_s_w((v4i32)R, 0);
R = SLDI_UB(R, R, 1);
val2 = __msa_copy_s_w((v4i32)R, 0);
R = SLDI_UB(R, R, 1);
val1 = __msa_copy_s_w((v4i32)R, 0);
R = SLDI_UB(R, R, 1);
val0 = __msa_copy_s_w((v4i32)R, 0);
SW4(val0, val1, val2, val3, dst, BPS);
}
static void LD4(uint8_t* dst) { // Down-Left
const uint8_t* const ptop = dst - BPS;
uint32_t val0 = LW(ptop + 0);
uint32_t val1 = LW(ptop + 4);
uint32_t val2, val3;
v16u8 A, B, C, AC, B2, R;
INSERT_W2_UB(val0, val1, A);
B = SLDI_UB(A, A, 1);
C = SLDI_UB(A, A, 2);
C = (v16u8)__msa_insert_b((v16i8)C, 6, ptop[7]);
AC = __msa_ave_u_b(A, C);
B2 = __msa_ave_u_b(B, B);
R = __msa_aver_u_b(AC, B2);
val0 = __msa_copy_s_w((v4i32)R, 0);
R = SLDI_UB(R, R, 1);
val1 = __msa_copy_s_w((v4i32)R, 0);
R = SLDI_UB(R, R, 1);
val2 = __msa_copy_s_w((v4i32)R, 0);
R = SLDI_UB(R, R, 1);
val3 = __msa_copy_s_w((v4i32)R, 0);
SW4(val0, val1, val2, val3, dst, BPS);
}
//------------------------------------------------------------------------------
// Entry point
@ -693,6 +795,12 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitMSA(void) {
VP8SimpleHFilter16 = SimpleHFilter16;
VP8SimpleVFilter16i = SimpleVFilter16i;
VP8SimpleHFilter16i = SimpleHFilter16i;
VP8PredLuma4[0] = DC4;
VP8PredLuma4[1] = TM4;
VP8PredLuma4[2] = VE4;
VP8PredLuma4[4] = RD4;
VP8PredLuma4[6] = LD4;
}
#else // !WEBP_USE_MSA

15
src/dsp/msa_macro.h
View File

@ -337,6 +337,10 @@
CLIP_SH_0_255(in0); \
CLIP_SH_0_255(in1); \
}
#define CLIP_SH4_0_255(in0, in1, in2, in3) { \
CLIP_SH2_0_255(in0, in1); \
CLIP_SH2_0_255(in2, in3); \
}
/* Description : Clips all signed word elements of input vector
* between 0 & 255
@ -859,4 +863,15 @@
ST4x4_UB(dst0_m, dst1_m, 0, 1, 0, 1, pdst, stride); \
}
/* Description : Pack even byte elements, extract 0 & 2 index words from pair
* of results and store 4 words in destination memory as per
* stride
* Arguments : Inputs - in0, in1, in2, in3, pdst, stride
*/
#define PCKEV_ST4x4_UB(in0, in1, in2, in3, pdst, stride) { \
v16i8 tmp0_m, tmp1_m; \
PCKEV_B2_SB(in1, in0, in3, in2, tmp0_m, tmp1_m); \
ST4x4_UB(tmp0_m, tmp1_m, 0, 2, 0, 2, pdst, stride); \
}
#endif /* WEBP_DSP_MSA_MACRO_H_ */