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sharpyuv: add support for 10/12/16 bit rgb and 10/12 bit yuv.

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10bit+ input is truncated to 10bits for now.

Change-Id: I7ac00ca54c623d94c76ccd8954418e11095997d2
This commit is contained in:
Maryla
2022-05-17 15:02:31 +02:00
parent d3006f4b96
commit 93c5437115
9 changed files with 348 additions and 190 deletions
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23
sharpyuv/sharpyuv_neon.c
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@@ -23,16 +23,16 @@ extern void InitSharpYuvNEON(void);
#if defined(WEBP_USE_NEON)
#define MAX_Y ((1 << 10) - 1) // 10b precision over 16b-arithmetic
static uint16_t clip_y_NEON(int v) {
return (v < 0) ? 0 : (v > MAX_Y) ? MAX_Y : (uint16_t)v;
static uint16_t clip_NEON(int v, int max) {
return (v < 0) ? 0 : (v > max) ? max : (uint16_t)v;
}
static uint64_t SharpYuvUpdateY_NEON(const uint16_t* ref, const uint16_t* src,
uint16_t* dst, int len) {
uint16_t* dst, int len, int bit_depth) {
const int max_y = (1 << bit_depth) - 1;
int i;
const int16x8_t zero = vdupq_n_s16(0);
const int16x8_t max = vdupq_n_s16(MAX_Y);
const int16x8_t max = vdupq_n_s16(max_y);
uint64x2_t sum = vdupq_n_u64(0);
uint64_t diff;
@@ -52,7 +52,7 @@ static uint64_t SharpYuvUpdateY_NEON(const uint16_t* ref, const uint16_t* src,
for (; i < len; ++i) {
const int diff_y = ref[i] - src[i];
const int new_y = (int)(dst[i]) + diff_y;
dst[i] = clip_y_NEON(new_y);
dst[i] = clip_NEON(new_y, max_y);
diff += (uint64_t)(abs(diff_y));
}
return diff;
@@ -76,9 +76,11 @@ static void SharpYuvUpdateRGB_NEON(const int16_t* ref, const int16_t* src,
}
static void SharpYuvFilterRow_NEON(const int16_t* A, const int16_t* B, int len,
const uint16_t* best_y, uint16_t* out) {
const uint16_t* best_y, uint16_t* out,
int bit_depth) {
const int max_y = (1 << bit_depth) - 1;
int i;
const int16x8_t max = vdupq_n_s16(MAX_Y);
const int16x8_t max = vdupq_n_s16(max_y);
const int16x8_t zero = vdupq_n_s16(0);
for (i = 0; i + 8 <= len; i += 8) {
const int16x8_t a0 = vld1q_s16(A + i + 0);
@@ -112,11 +114,10 @@ static void SharpYuvFilterRow_NEON(const int16_t* A, const int16_t* B, int len,
const int a0a1b0b1 = a0b1 + a1b0 + 8;
const int v0 = (8 * A[i + 0] + 2 * a1b0 + a0a1b0b1) >> 4;
const int v1 = (8 * A[i + 1] + 2 * a0b1 + a0a1b0b1) >> 4;
out[2 * i + 0] = clip_y_NEON(best_y[2 * i + 0] + v0);
out[2 * i + 1] = clip_y_NEON(best_y[2 * i + 1] + v1);
out[2 * i + 0] = clip_NEON(best_y[2 * i + 0] + v0, max_y);
out[2 * i + 1] = clip_NEON(best_y[2 * i + 1] + v1, max_y);
}
}
#undef MAX_Y
//------------------------------------------------------------------------------