ref: d49bf26b1c076d167cc9488faaa7d766bd5120a3
parent: 9966cc8d1269c8ac105b08d9332727bdb5c110bb
author: Shiyou Yin <yinshiyou-hf@loongson.cn>
date: Wed Nov 29 11:59:22 EST 2017
vp8: [loongson] optimize regular quantize v2. 1. Optimize the memset with mmi. 2. Optimize macro REGULAR_SELECT_EOB. Change-Id: Icd9c866b0e6aef08874b2f123e9b0e09919445ff
--- a/vp8/encoder/mips/mmi/vp8_quantize_mmi.c
+++ b/vp8/encoder/mips/mmi/vp8_quantize_mmi.c
@@ -18,13 +18,14 @@
z = coeff_ptr[rc]; \
sz = (z >> 31); \
x = (z ^ sz) - sz; \
- if (x >= (zbin_ptr[rc] + *(zbin_boost_ptr++) + zbin_oq_value)) { \+ zbin = zbin_ptr[rc] + *(zbin_boost_ptr++) + zbin_oq_value; \
+ if (x >= zbin) { \x += round_ptr[rc]; \
y = ((((x * quant_ptr[rc]) >> 16) + x) * quant_shift_ptr[rc]) >> 16; \
- x = (y ^ sz) - sz; \
- qcoeff_ptr[rc] = x; \
- dqcoeff_ptr[rc] = x * dequant_ptr[rc]; \
if (y) { \+ x = (y ^ sz) - sz; \
+ qcoeff_ptr[rc] = x; \
+ dqcoeff_ptr[rc] = x * dequant_ptr[rc]; \
eob = i; \
zbin_boost_ptr = b->zrun_zbin_boost; \
} \
@@ -198,8 +199,8 @@
}
void vp8_regular_quantize_b_mmi(BLOCK *b, BLOCKD *d) {- int eob;
- int x, y, z, sz;
+ int eob = 0;
+ int x, y, z, sz, zbin;
const int16_t *zbin_boost_ptr = b->zrun_zbin_boost;
const int16_t *coeff_ptr = b->coeff;
const int16_t *zbin_ptr = b->zbin;
@@ -210,28 +211,52 @@
int16_t *dqcoeff_ptr = d->dqcoeff;
const int16_t *dequant_ptr = d->dequant;
const int16_t zbin_oq_value = b->zbin_extra;
+ register double ftmp0 asm("$f0");- memset(qcoeff_ptr, 0, 32);
- memset(dqcoeff_ptr, 0, 32);
+ // memset(qcoeff_ptr, 0, 32);
+ // memset(dqcoeff_ptr, 0, 32);
+ /* clang-format off */
+ __asm__ volatile (
+ "xor %[ftmp0], %[ftmp0], %[ftmp0] \n\t"
+ "gssdlc1 %[ftmp0], 0x07(%[qcoeff_ptr]) \n\t"
+ "gssdrc1 %[ftmp0], 0x00(%[qcoeff_ptr]) \n\t"
+ "gssdlc1 %[ftmp0], 0x0f(%[qcoeff_ptr]) \n\t"
+ "gssdrc1 %[ftmp0], 0x08(%[qcoeff_ptr]) \n\t"
+ "gssdlc1 %[ftmp0], 0x17(%[qcoeff_ptr]) \n\t"
+ "gssdrc1 %[ftmp0], 0x10(%[qcoeff_ptr]) \n\t"
+ "gssdlc1 %[ftmp0], 0x1f(%[qcoeff_ptr]) \n\t"
+ "gssdrc1 %[ftmp0], 0x18(%[qcoeff_ptr]) \n\t"
- eob = -1;
+ "gssdlc1 %[ftmp0], 0x07(%[dqcoeff_ptr]) \n\t"
+ "gssdrc1 %[ftmp0], 0x00(%[dqcoeff_ptr]) \n\t"
+ "gssdlc1 %[ftmp0], 0x0f(%[dqcoeff_ptr]) \n\t"
+ "gssdrc1 %[ftmp0], 0x08(%[dqcoeff_ptr]) \n\t"
+ "gssdlc1 %[ftmp0], 0x17(%[dqcoeff_ptr]) \n\t"
+ "gssdrc1 %[ftmp0], 0x10(%[dqcoeff_ptr]) \n\t"
+ "gssdlc1 %[ftmp0], 0x1f(%[dqcoeff_ptr]) \n\t"
+ "gssdrc1 %[ftmp0], 0x18(%[dqcoeff_ptr]) \n\t"
+ : [ftmp0]"=&f"(ftmp0)
+ : [qcoeff_ptr]"r"(qcoeff_ptr), [dqcoeff_ptr]"r"(dqcoeff_ptr)
+ : "memory"
+ );
+ /* clang-format on */
- REGULAR_SELECT_EOB(0, 0);
- REGULAR_SELECT_EOB(1, 1);
- REGULAR_SELECT_EOB(2, 4);
- REGULAR_SELECT_EOB(3, 8);
- REGULAR_SELECT_EOB(4, 5);
- REGULAR_SELECT_EOB(5, 2);
- REGULAR_SELECT_EOB(6, 3);
- REGULAR_SELECT_EOB(7, 6);
- REGULAR_SELECT_EOB(8, 9);
- REGULAR_SELECT_EOB(9, 12);
- REGULAR_SELECT_EOB(10, 13);
- REGULAR_SELECT_EOB(11, 10);
- REGULAR_SELECT_EOB(12, 7);
- REGULAR_SELECT_EOB(13, 11);
- REGULAR_SELECT_EOB(14, 14);
- REGULAR_SELECT_EOB(15, 15);
+ REGULAR_SELECT_EOB(1, 0);
+ REGULAR_SELECT_EOB(2, 1);
+ REGULAR_SELECT_EOB(3, 4);
+ REGULAR_SELECT_EOB(4, 8);
+ REGULAR_SELECT_EOB(5, 5);
+ REGULAR_SELECT_EOB(6, 2);
+ REGULAR_SELECT_EOB(7, 3);
+ REGULAR_SELECT_EOB(8, 6);
+ REGULAR_SELECT_EOB(9, 9);
+ REGULAR_SELECT_EOB(10, 12);
+ REGULAR_SELECT_EOB(11, 13);
+ REGULAR_SELECT_EOB(12, 10);
+ REGULAR_SELECT_EOB(13, 7);
+ REGULAR_SELECT_EOB(14, 11);
+ REGULAR_SELECT_EOB(15, 14);
+ REGULAR_SELECT_EOB(16, 15);
- *d->eob = (char)(eob + 1);
+ *d->eob = (char)eob;
}