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Enable {J400/I400}ToARGBRow_RVV

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Run on SiFive internal FPGA*:

I400ToARGB_Opt (~8x vs scalar)
J400ToARGB_Opt (~10x vs scalar)

LIBYUV_WIDTH=1280 LIBYUV_HEIGHT=720 LIBYUV_REPEAT=10

Bug: libyuv:956, libyuv:961
Change-Id: If4e21ec85c4ff79083ec16a6faae0e457129a8de
Signed-off-by: Bruce Lai <bruce.lai@sifive.com>
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/4544972
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Commit-Queue: Wan-Teh Chang <wtc@google.com>
This commit is contained in:
Wan-Teh Chang 2023-05-20 16:09:43 -07:00 committed by libyuv LUCI CQ
parent 8670bcf17f
commit 179b0203e5
3 changed files with 74 additions and 0 deletions
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7
include/libyuv/row.h
View File

@ -807,6 +807,7 @@ extern "C" {
#define HAS_ABGRTOYROW_RVV
#define HAS_ABGRTOYJROW_RVV
#define HAS_BGRATOYROW_RVV
#define HAS_I400TOARGBROW_RVV
#define HAS_I422ALPHATOARGBROW_RVV
#define HAS_I422TOARGBROW_RVV
#define HAS_I422TORGB24ROW_RVV
@ -814,6 +815,7 @@ extern "C" {
#define HAS_I444ALPHATOARGBROW_RVV
#define HAS_I444TOARGBROW_RVV
#define HAS_I444TORGB24ROW_RVV
#define HAS_J400TOARGBROW_RVV
#define HAS_MERGEARGBROW_RVV
#define HAS_MERGERGBROW_RVV
#define HAS_MERGEXRGBROW_RVV
@ -3531,6 +3533,7 @@ void J400ToARGBRow_AVX2(const uint8_t* src_y, uint8_t* dst_argb, int width);
void J400ToARGBRow_NEON(const uint8_t* src_y, uint8_t* dst_argb, int width);
void J400ToARGBRow_MSA(const uint8_t* src_y, uint8_t* dst_argb, int width);
void J400ToARGBRow_LSX(const uint8_t* src_y, uint8_t* dst_argb, int width);
void J400ToARGBRow_RVV(const uint8_t* src_y, uint8_t* dst_argb, int width);
void J400ToARGBRow_C(const uint8_t* src_y, uint8_t* dst_argb, int width);
void J400ToARGBRow_Any_SSE2(const uint8_t* src_ptr,
uint8_t* dst_ptr,
@ -4460,6 +4463,10 @@ void I400ToARGBRow_LSX(const uint8_t* src_y,
uint8_t* dst_argb,
const struct YuvConstants* yuvconstants,
int width);
void I400ToARGBRow_RVV(const uint8_t* src_y,
uint8_t* dst_argb,
const struct YuvConstants* yuvconstants,
int width);
void I400ToARGBRow_Any_SSE2(const uint8_t* src_ptr,
uint8_t* dst_ptr,
const struct YuvConstants* param,

11
source/convert_argb.cc
View File

@ -2897,6 +2897,11 @@ int I400ToARGBMatrix(const uint8_t* src_y,
}
}
#endif
#if defined(HAS_I400TOARGBROW_RVV)
if (TestCpuFlag(kCpuHasRVV)) {
I400ToARGBRow = I400ToARGBRow_RVV;
}
#endif
for (y = 0; y < height; ++y) {
I400ToARGBRow(src_y, dst_argb, yuvconstants, width);
@ -2984,6 +2989,12 @@ int J400ToARGB(const uint8_t* src_y,
}
}
#endif
#if defined(HAS_J400TOARGBROW_RVV)
if (TestCpuFlag(kCpuHasRVV)) {
J400ToARGBRow = J400ToARGBRow_RVV;
}
#endif
for (y = 0; y < height; ++y) {
J400ToARGBRow(src_y, dst_argb, width);
src_y += src_stride_y;

56
source/row_rvv.cc
View File

@ -474,6 +474,62 @@ void I422ToRGB24Row_RVV(const uint8_t* src_y,
} while (w > 0);
}
void I400ToARGBRow_RVV(const uint8_t* src_y,
uint8_t* dst_argb,
const struct YuvConstants* yuvconstants,
int width) {
size_t w = (size_t)width;
size_t vl = __riscv_vsetvl_e8m2(w);
const bool is_yb_positive = (yuvconstants->kRGBCoeffBias[4] >= 0);
vuint8m2_t v_a = __riscv_vmv_v_x_u8m2(255u, vl);
vuint16m4_t v_yb;
vuint16m4_t v_yg = __riscv_vmv_v_x_u16m4(yuvconstants->kRGBCoeffBias[0], vl);
// To match behavior on other platforms, vxrm (fixed-point rounding mode
// register) sets to round-down mode(2).
asm volatile("csrwi vxrm, 2");
if (is_yb_positive) {
v_yb = __riscv_vmv_v_x_u16m4(yuvconstants->kRGBCoeffBias[4], vl);
} else {
v_yb = __riscv_vmv_v_x_u16m4(-yuvconstants->kRGBCoeffBias[4], vl);
}
do {
vuint8m2_t v_y, v_out;
vuint16m4_t v_y_16, v_tmp0, v_tmp1, v_tmp2;
vuint32m8_t v_y1;
vl = __riscv_vsetvl_e8m2(w);
v_y = __riscv_vle8_v_u8m2(src_y, vl);
v_y_16 = __riscv_vwaddu_vx_u16m4(v_y, 0, vl);
v_tmp0 = __riscv_vmul_vx_u16m4(v_y_16, 0x0101, vl); // 257 * v_y
v_y1 = __riscv_vwmulu_vv_u32m8(v_tmp0, v_yg, vl);
v_tmp1 = __riscv_vnsrl_wx_u16m4(v_y1, 16, vl);
if (is_yb_positive) {
v_tmp2 = __riscv_vsaddu_vv_u16m4(v_tmp1, v_yb, vl);
} else {
v_tmp2 = __riscv_vssubu_vv_u16m4(v_tmp1, v_yb, vl);
}
v_out = __riscv_vnclipu_wx_u8m2(v_tmp2, 6, vl);
__riscv_vsseg4e8_v_u8m2(dst_argb, v_out, v_out, v_out, v_a, vl);
w -= vl;
src_y += vl;
dst_argb += vl * 4;
} while (w > 0);
}
void J400ToARGBRow_RVV(const uint8_t* src_y, uint8_t* dst_argb, int width) {
size_t w = (size_t)width;
size_t vl = __riscv_vsetvl_e8m2(w);
vuint8m2_t v_a = __riscv_vmv_v_x_u8m2(255u, vl);
do {
vuint8m2_t v_y;
v_y = __riscv_vle8_v_u8m2(src_y, vl);
__riscv_vsseg4e8_v_u8m2(dst_argb, v_y, v_y, v_y, v_a, vl);
w -= vl;
src_y += vl;
dst_argb += vl * 4;
vl = __riscv_vsetvl_e8m2(w);
} while (w > 0);
}
void SplitRGBRow_RVV(const uint8_t* src_rgb,
uint8_t* dst_r,
uint8_t* dst_g,