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MIPS: dspr2: added optimization for function ClampedAddSubtractHalf

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Change-Id: Iec22e897a4f56e79c18ec00f8caa9cefac67f186
This commit is contained in:
Djordje Pesut
2014-10-10 10:35:43 +02:00
parent 829a8c19a0
commit 18d5a1efa8
3 changed files with 44 additions and 29 deletions
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21
src/dsp/enc_mips_dsp_r2.c
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@ -29,6 +29,14 @@ static const int kC2 = 35468;
"ulw %["#O2"], 32(%[ref]) \n\t" \
"ulw %["#O3"], 48(%[ref]) \n\t"
// temp0[31..16 | 15..0] = temp0[31..16 | 15..0] + temp8[31..16 | 15..0]
// temp0[31..16 | 15..0] = temp0[31..16 <<(s) 7 | 15..0 <<(s) 7]
// temp1..temp7 same as temp0
// precrqu_s.qb.ph temp0, temp1, temp0:
// temp0 = temp1[31..24] | temp1[15..8] | temp0[31..24] | temp0[15..8]
// store temp0 to dst
// IO - input/output
// I - input (macro doesn't change it)
#define STORE_SAT_SUM_X2(IO0, IO1, IO2, IO3, IO4, IO5, IO6, IO7, \
I0, I1, I2, I3, I4, I5, I6, I7) \
"addq.ph %["#IO0"], %["#IO0"], %["#I0"] \n\t" \
@ -128,19 +136,8 @@ static void ITransform(const uint8_t* ref, const int16_t* in, uint8_t* dst,
}
}
#undef OUTPUT_EARLY_CLOBBER_REGS_18
#undef OUTPUT_EARLY_CLOBBER_REGS_10
#undef INSERT_HALF_X2
#undef SRA_16
#undef LOAD_IN_X2
#undef ADD_SUB_HALVES
#undef MUL_SHIFT_SUM
#undef PACK_2_HALVES_TO_WORD
#undef LOAD_REF
#undef CONVERT_2_BYTES_TO_HALF
#undef SHIFT_R_SUM_X2
#undef STORE_SAT_SUM_X2
#undef MUL
#endif // WEBP_USE_MIPS_DSP_R2
@ -152,5 +149,5 @@ extern WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitMIPSdspR2(void);
WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitMIPSdspR2(void) {
#if defined(WEBP_USE_MIPS_DSP_R2)
VP8ITransform = ITransform;
#endif // WEBP_USE_MIPS32
#endif // WEBP_USE_MIPS_DSP_R2
}