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MIPS: dspr2: added optimization for function QuantizeBlock

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Change-Id: Id217116890b7408d23464216608ce67ae545688a
This commit is contained in:
Djordje Pesut 2015-01-16 11:18:27 +01:00
parent 4fbe9cf202
commit 5487529368
1 changed files with 149 additions and 0 deletions
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149
src/dsp/enc_mips_dsp_r2.c
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@ -1174,6 +1174,153 @@ static int SSE4x4(const uint8_t* a, const uint8_t* b) {
#undef ABS_X8
#undef ADD_SUB_HALVES_X4
//------------------------------------------------------------------------------
// Quantization
//
// macro for one pass through for loop in QuantizeBlock reading 2 values at time
// QUANTDIV macro inlined
// J - offset in bytes (kZigzag[n] * 2)
// K - offset in bytes (kZigzag[n] * 4)
// N - offset in bytes (n * 2)
// N1 - offset in bytes ((n + 1) * 2)
#define QUANTIZE_ONE(J, K, N, N1) \
"ulw %[temp1], "#J"(%[ppin]) \n\t" \
"ulw %[temp2], "#J"(%[ppsharpen]) \n\t" \
"lhu %[temp3], "#K"(%[ppzthresh]) \n\t" \
"lhu %[temp6], "#K"+4(%[ppzthresh]) \n\t" \
"absq_s.ph %[temp4], %[temp1] \n\t" \
"ins %[temp3], %[temp6], 16, 16 \n\t" \
"addu.ph %[coeff], %[temp4], %[temp2] \n\t" \
"shra.ph %[sign], %[temp1], 15 \n\t" \
"li %[level], 0x10001 \n\t" \
"cmp.lt.ph %[temp3], %[coeff] \n\t" \
"lhu %[temp1], "#J"(%[ppiq]) \n\t" \
"pick.ph %[temp5], %[level], $0 \n\t" \
"lw %[temp2], "#K"(%[ppbias]) \n\t" \
"beqz %[temp5], 0f \n\t" \
"lhu %[temp3], "#J"(%[ppq]) \n\t" \
"beq %[temp5], %[level], 1f \n\t" \
"andi %[temp5], %[temp5], 0x1 \n\t" \
"andi %[temp4], %[coeff], 0xffff \n\t" \
"beqz %[temp5], 2f \n\t" \
"mul %[level], %[temp4], %[temp1] \n\t" \
"sh $0, "#J"+2(%[ppin]) \n\t" \
"sh $0, "#N1"(%[pout]) \n\t" \
"addu %[level], %[level], %[temp2] \n\t" \
"sra %[level], %[level], 17 \n\t" \
"slt %[temp4], %[max_level], %[level] \n\t" \
"movn %[level], %[max_level], %[temp4] \n\t" \
"andi %[temp6], %[sign], 0xffff \n\t" \
"xor %[level], %[level], %[temp6] \n\t" \
"subu %[level], %[level], %[temp6] \n\t" \
"mul %[temp5], %[level], %[temp3] \n\t" \
"or %[ret], %[ret], %[level] \n\t" \
"sh %[level], "#N"(%[pout]) \n\t" \
"sh %[temp5], "#J"(%[ppin]) \n\t" \
"j 3f \n\t" \
"2: \n\t" \
"lhu %[temp1], "#J"+2(%[ppiq]) \n\t" \
"srl %[temp5], %[coeff], 16 \n\t" \
"mul %[level], %[temp5], %[temp1] \n\t" \
"lw %[temp2], "#K"+4(%[ppbias]) \n\t" \
"lhu %[temp3], "#J"+2(%[ppq]) \n\t" \
"addu %[level], %[level], %[temp2] \n\t" \
"sra %[level], %[level], 17 \n\t" \
"srl %[temp6], %[sign], 16 \n\t" \
"slt %[temp4], %[max_level], %[level] \n\t" \
"movn %[level], %[max_level], %[temp4] \n\t" \
"xor %[level], %[level], %[temp6] \n\t" \
"subu %[level], %[level], %[temp6] \n\t" \
"mul %[temp5], %[level], %[temp3] \n\t" \
"sh $0, "#J"(%[ppin]) \n\t" \
"sh $0, "#N"(%[pout]) \n\t" \
"or %[ret], %[ret], %[level] \n\t" \
"sh %[temp5], "#J"+2(%[ppin]) \n\t" \
"sh %[level], "#N1"(%[pout]) \n\t" \
"j 3f \n\t" \
"1: \n\t" \
"lhu %[temp1], "#J"(%[ppiq]) \n\t" \
"lw %[temp2], "#K"(%[ppbias]) \n\t" \
"ulw %[temp3], "#J"(%[ppq]) \n\t" \
"andi %[temp5], %[coeff], 0xffff \n\t" \
"srl %[temp0], %[coeff], 16 \n\t" \
"lhu %[temp6], "#J"+2(%[ppiq]) \n\t" \
"lw %[coeff], "#K"+4(%[ppbias]) \n\t" \
"mul %[level], %[temp5], %[temp1] \n\t" \
"mul %[temp4], %[temp0], %[temp6] \n\t" \
"addu %[level], %[level], %[temp2] \n\t" \
"addu %[temp4], %[temp4], %[coeff] \n\t" \
"precrq.ph.w %[level], %[temp4], %[level] \n\t" \
"shra.ph %[level], %[level], 1 \n\t" \
"cmp.lt.ph %[max_level1],%[level] \n\t" \
"pick.ph %[level], %[max_level], %[level] \n\t" \
"xor %[level], %[level], %[sign] \n\t" \
"subu.ph %[level], %[level], %[sign] \n\t" \
"mul.ph %[temp3], %[level], %[temp3] \n\t" \
"or %[ret], %[ret], %[level] \n\t" \
"sh %[level], "#N"(%[pout]) \n\t" \
"srl %[level], %[level], 16 \n\t" \
"sh %[level], "#N1"(%[pout]) \n\t" \
"usw %[temp3], "#J"(%[ppin]) \n\t" \
"j 3f \n\t" \
"0: \n\t" \
"sh $0, "#N"(%[pout]) \n\t" \
"sh $0, "#N1"(%[pout]) \n\t" \
"usw $0, "#J"(%[ppin]) \n\t" \
"3: \n\t"
static int QuantizeBlock(int16_t in[16], int16_t out[16],
const VP8Matrix* const mtx) {
int temp0, temp1, temp2, temp3, temp4, temp5,temp6;
int sign, coeff, level;
int max_level = MAX_LEVEL;
int max_level1 = max_level << 16 | max_level;
int ret = 0;
int16_t* ppin = &in[0];
int16_t* pout = &out[0];
const uint16_t* ppsharpen = &mtx->sharpen_[0];
const uint32_t* ppzthresh = &mtx->zthresh_[0];
const uint16_t* ppq = &mtx->q_[0];
const uint16_t* ppiq = &mtx->iq_[0];
const uint32_t* ppbias = &mtx->bias_[0];
__asm__ volatile (
QUANTIZE_ONE( 0, 0, 0, 2)
QUANTIZE_ONE( 4, 8, 10, 12)
QUANTIZE_ONE( 8, 16, 4, 8)
QUANTIZE_ONE(12, 24, 14, 24)
QUANTIZE_ONE(16, 32, 6, 16)
QUANTIZE_ONE(20, 40, 22, 26)
QUANTIZE_ONE(24, 48, 18, 20)
QUANTIZE_ONE(28, 56, 28, 30)
: [temp0]"=&r"(temp0), [temp1]"=&r"(temp1),
[temp2]"=&r"(temp2), [temp3]"=&r"(temp3),
[temp4]"=&r"(temp4), [temp5]"=&r"(temp5),
[sign]"=&r"(sign), [coeff]"=&r"(coeff),
[level]"=&r"(level), [temp6]"=&r"(temp6), [ret]"+&r"(ret)
: [ppin]"r"(ppin), [pout]"r"(pout), [max_level1]"r"(max_level1),
[ppiq]"r"(ppiq), [max_level]"r"(max_level),
[ppbias]"r"(ppbias), [ppzthresh]"r"(ppzthresh),
[ppsharpen]"r"(ppsharpen), [ppq]"r"(ppq)
: "memory", "hi", "lo"
);
return (ret != 0);
}
static int Quantize2Blocks(int16_t in[32], int16_t out[32],
const VP8Matrix* const mtx) {
int nz;
nz = QuantizeBlock(in + 0 * 16, out + 0 * 16, mtx) << 0;
nz |= QuantizeBlock(in + 1 * 16, out + 1 * 16, mtx) << 1;
return nz;
}
#undef QUANTIZE_ONE
#endif // WEBP_USE_MIPS_DSP_R2
//------------------------------------------------------------------------------
@ -1196,5 +1343,7 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitMIPSdspR2(void) {
VP8SSE16x8 = SSE16x8;
VP8SSE4x4 = SSE4x4;
#endif
VP8EncQuantizeBlock = QuantizeBlock;
VP8EncQuantize2Blocks = Quantize2Blocks;
#endif // WEBP_USE_MIPS_DSP_R2
}