mirror of
https://github.com/webmproject/libwebp.git
synced 2024-12-27 22:28:22 +01:00
MIPS: dspr2: added optimization for function FilterLoop24
affected functions: VFilter16i, HFilter16i, VFilter8i and HFilter8i Change-Id: I5d2bc7716e60e048a33d630fe4a86011bfb6d42e
This commit is contained in:
Djordje Pesut
parent
2aef54d429
commit
d4471637ef
@ -455,6 +455,135 @@ static WEBP_INLINE void FilterLoop26(uint8_t* p,
|
||||
);
|
||||
}
|
||||
|
||||
static WEBP_INLINE void FilterLoop24(uint8_t* p,
|
||||
int hstride, int vstride, int size,
|
||||
int thresh, int ithresh, int hev_thresh) {
|
||||
int p0, q0, p1, q1, p2, q2, p3, q3;
|
||||
int step1, step2, temp1, temp2, temp3, temp4;
|
||||
uint8_t* pTemp0;
|
||||
uint8_t* pTemp1;
|
||||
const int thresh2 = 2 * thresh + 1;
|
||||
|
||||
__asm__ volatile (
|
||||
".set push \n\t"
|
||||
".set noreorder \n\t"
|
||||
"bltz %[size], 3f \n\t"
|
||||
" nop \n\t"
|
||||
"2: \n\t"
|
||||
"negu %[step1], %[hstride] \n\t"
|
||||
"lbu %[q0], 0(%[p]) \n\t"
|
||||
"lbux %[p0], %[step1](%[p]) \n\t"
|
||||
"subu %[step1], %[step1], %[hstride] \n\t"
|
||||
"lbux %[q1], %[hstride](%[p]) \n\t"
|
||||
"subu %[temp1], %[p0], %[q0] \n\t"
|
||||
"lbux %[p1], %[step1](%[p]) \n\t"
|
||||
"addu %[step2], %[hstride], %[hstride] \n\t"
|
||||
"absq_s.w %[temp2], %[temp1] \n\t"
|
||||
"subu %[temp3], %[p1], %[q1] \n\t"
|
||||
"absq_s.w %[temp4], %[temp3] \n\t"
|
||||
"sll %[temp2], %[temp2], 2 \n\t"
|
||||
"addu %[temp2], %[temp2], %[temp4] \n\t"
|
||||
"subu %[temp4], %[temp2], %[thresh2] \n\t"
|
||||
"subu %[step1], %[step1], %[hstride] \n\t"
|
||||
"bgtz %[temp4], 0f \n\t"
|
||||
" lbux %[p2], %[step1](%[p]) \n\t"
|
||||
"subu %[step1], %[step1], %[hstride] \n\t"
|
||||
"lbux %[q2], %[step2](%[p]) \n\t"
|
||||
"lbux %[p3], %[step1](%[p]) \n\t"
|
||||
"subu %[temp4], %[p2], %[p1] \n\t"
|
||||
"addu %[step2], %[step2], %[hstride] \n\t"
|
||||
"subu %[temp2], %[p3], %[p2] \n\t"
|
||||
"absq_s.w %[temp4], %[temp4] \n\t"
|
||||
"absq_s.w %[temp2], %[temp2] \n\t"
|
||||
"lbux %[q3], %[step2](%[p]) \n\t"
|
||||
"subu %[temp4], %[temp4], %[ithresh] \n\t"
|
||||
"negu %[temp1], %[temp1] \n\t"
|
||||
"bgtz %[temp4], 0f \n\t"
|
||||
" subu %[temp2], %[temp2], %[ithresh] \n\t"
|
||||
"subu %[p3], %[p1], %[p0] \n\t"
|
||||
"bgtz %[temp2], 0f \n\t"
|
||||
" absq_s.w %[p3], %[p3] \n\t"
|
||||
"subu %[temp4], %[q3], %[q2] \n\t"
|
||||
"subu %[pTemp0], %[p], %[hstride] \n\t"
|
||||
"absq_s.w %[temp4], %[temp4] \n\t"
|
||||
"subu %[temp2], %[p3], %[ithresh] \n\t"
|
||||
"sll %[step1], %[temp1], 1 \n\t"
|
||||
"bgtz %[temp2], 0f \n\t"
|
||||
" subu %[temp4], %[temp4], %[ithresh] \n\t"
|
||||
"subu %[temp2], %[q2], %[q1] \n\t"
|
||||
"bgtz %[temp4], 0f \n\t"
|
||||
" absq_s.w %[temp2], %[temp2] \n\t"
|
||||
"subu %[q3], %[q1], %[q0] \n\t"
|
||||
"absq_s.w %[q3], %[q3] \n\t"
|
||||
"subu %[temp2], %[temp2], %[ithresh] \n\t"
|
||||
"addu %[temp1], %[temp1], %[step1] \n\t"
|
||||
"bgtz %[temp2], 0f \n\t"
|
||||
" subu %[temp4], %[q3], %[ithresh] \n\t"
|
||||
"slt %[p3], %[hev_thresh], %[p3] \n\t"
|
||||
"bgtz %[temp4], 0f \n\t"
|
||||
" slt %[q3], %[hev_thresh], %[q3] \n\t"
|
||||
"or %[q3], %[q3], %[p3] \n\t"
|
||||
"bgtz %[q3], 1f \n\t"
|
||||
" shra_r.w %[temp2], %[temp1], 3 \n\t"
|
||||
"addiu %[temp1], %[temp1], 3 \n\t"
|
||||
"sra %[temp1], %[temp1], 3 \n\t"
|
||||
"shll_s.w %[temp2], %[temp2], 27 \n\t"
|
||||
"shll_s.w %[temp1], %[temp1], 27 \n\t"
|
||||
"addu %[pTemp1], %[p], %[hstride] \n\t"
|
||||
"sra %[temp2], %[temp2], 27 \n\t"
|
||||
"sra %[temp1], %[temp1], 27 \n\t"
|
||||
"addiu %[step1], %[temp2], 1 \n\t"
|
||||
"sra %[step1], %[step1], 1 \n\t"
|
||||
"addu %[p0], %[p0], %[temp1] \n\t"
|
||||
"addu %[p1], %[p1], %[step1] \n\t"
|
||||
"subu %[q0], %[q0], %[temp2] \n\t"
|
||||
"subu %[q1], %[q1], %[step1] \n\t"
|
||||
"lbux %[temp2], %[p0](%[VP8kclip1]) \n\t"
|
||||
"lbux %[temp3], %[q0](%[VP8kclip1]) \n\t"
|
||||
"lbux %[temp4], %[q1](%[VP8kclip1]) \n\t"
|
||||
"sb %[temp2], 0(%[pTemp0]) \n\t"
|
||||
"lbux %[temp1], %[p1](%[VP8kclip1]) \n\t"
|
||||
"subu %[pTemp0], %[pTemp0], %[hstride] \n\t"
|
||||
"sb %[temp3], 0(%[p]) \n\t"
|
||||
"sb %[temp4], 0(%[pTemp1]) \n\t"
|
||||
"j 0f \n\t"
|
||||
" sb %[temp1], 0(%[pTemp0]) \n\t"
|
||||
"1: \n\t"
|
||||
"shll_s.w %[temp3], %[temp3], 24 \n\t"
|
||||
"sra %[temp3], %[temp3], 24 \n\t"
|
||||
"addu %[temp1], %[temp1], %[temp3] \n\t"
|
||||
"shra_r.w %[temp2], %[temp1], 3 \n\t"
|
||||
"addiu %[temp1], %[temp1], 3 \n\t"
|
||||
"shll_s.w %[temp2], %[temp2], 27 \n\t"
|
||||
"sra %[temp1], %[temp1], 3 \n\t"
|
||||
"shll_s.w %[temp1], %[temp1], 27 \n\t"
|
||||
"sra %[temp2], %[temp2], 27 \n\t"
|
||||
"sra %[temp1], %[temp1], 27 \n\t"
|
||||
"addu %[p0], %[p0], %[temp1] \n\t"
|
||||
"subu %[q0], %[q0], %[temp2] \n\t"
|
||||
"lbux %[temp1], %[p0](%[VP8kclip1]) \n\t"
|
||||
"lbux %[temp2], %[q0](%[VP8kclip1]) \n\t"
|
||||
"sb %[temp2], 0(%[p]) \n\t"
|
||||
"sb %[temp1], 0(%[pTemp0]) \n\t"
|
||||
"0: \n\t"
|
||||
"subu %[size], %[size], 1 \n\t"
|
||||
"bgtz %[size], 2b \n\t"
|
||||
" addu %[p], %[p], %[vstride] \n\t"
|
||||
"3: \n\t"
|
||||
".set pop \n\t"
|
||||
: [p0]"=&r"(p0), [q0]"=&r"(q0), [p1]"=&r"(p1), [q1]"=&r"(q1),
|
||||
[p2]"=&r"(p2), [q2]"=&r"(q2), [p3]"=&r"(p3), [q3]"=&r"(q3),
|
||||
[step2]"=&r"(step2), [step1]"=&r"(step1), [temp1]"=&r"(temp1),
|
||||
[temp2]"=&r"(temp2), [temp3]"=&r"(temp3), [temp4]"=&r"(temp4),
|
||||
[pTemp0]"=&r"(pTemp0), [pTemp1]"=&r"(pTemp1), [p]"+&r"(p),
|
||||
[size]"+&r"(size)
|
||||
: [vstride]"r"(vstride), [ithresh]"r"(ithresh),
|
||||
[hev_thresh]"r"(hev_thresh), [hstride]"r"(hstride),
|
||||
[VP8kclip1]"r"(VP8kclip1), [thresh2]"r"(thresh2)
|
||||
: "memory"
|
||||
);
|
||||
}
|
||||
|
||||
// on macroblock edges
|
||||
static void VFilter16(uint8_t* p, int stride,
|
||||
int thresh, int ithresh, int hev_thresh) {
|
||||
@ -479,6 +608,37 @@ static void HFilter8(uint8_t* u, uint8_t* v, int stride,
|
||||
FilterLoop26(v, 1, stride, 8, thresh, ithresh, hev_thresh);
|
||||
}
|
||||
|
||||
// on three inner edges
|
||||
static void VFilter16i(uint8_t* p, int stride,
|
||||
int thresh, int ithresh, int hev_thresh) {
|
||||
int k;
|
||||
for (k = 3; k > 0; --k) {
|
||||
p += 4 * stride;
|
||||
FilterLoop24(p, stride, 1, 16, thresh, ithresh, hev_thresh);
|
||||
}
|
||||
}
|
||||
|
||||
static void HFilter16i(uint8_t* p, int stride,
|
||||
int thresh, int ithresh, int hev_thresh) {
|
||||
int k;
|
||||
for (k = 3; k > 0; --k) {
|
||||
p += 4;
|
||||
FilterLoop24(p, 1, stride, 16, thresh, ithresh, hev_thresh);
|
||||
}
|
||||
}
|
||||
|
||||
static void VFilter8i(uint8_t* u, uint8_t* v, int stride,
|
||||
int thresh, int ithresh, int hev_thresh) {
|
||||
FilterLoop24(u + 4 * stride, stride, 1, 8, thresh, ithresh, hev_thresh);
|
||||
FilterLoop24(v + 4 * stride, stride, 1, 8, thresh, ithresh, hev_thresh);
|
||||
}
|
||||
|
||||
static void HFilter8i(uint8_t* u, uint8_t* v, int stride,
|
||||
int thresh, int ithresh, int hev_thresh) {
|
||||
FilterLoop24(u + 4, 1, stride, 8, thresh, ithresh, hev_thresh);
|
||||
FilterLoop24(v + 4, 1, stride, 8, thresh, ithresh, hev_thresh);
|
||||
}
|
||||
|
||||
#undef OUTPUT_EARLY_CLOBBER_REGS_18
|
||||
#undef OUTPUT_EARLY_CLOBBER_REGS_10
|
||||
#undef INSERT_HALF_X2
|
||||
@ -509,5 +669,9 @@ void VP8DspInitMIPSdspR2(void) {
|
||||
VP8HFilter16 = HFilter16;
|
||||
VP8VFilter8 = VFilter8;
|
||||
VP8HFilter8 = HFilter8;
|
||||
VP8VFilter16i = VFilter16i;
|
||||
VP8HFilter16i = HFilter16i;
|
||||
VP8VFilter8i = VFilter8i;
|
||||
VP8HFilter8i = HFilter8i;
|
||||
#endif
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user