mirror of
https://chromium.googlesource.com/libyuv/libyuv
synced 2025-12-06 16:56:55 +08:00
7e5863ae5a
This can make use of the existing load/convert/store macros that are already present for other kernels, so add I422ToAR30Row_SVE2 and I422ToAR30Row_SME to match the existing kernels. Reduction in time taken observed for the new SVE2 implementation, compared to the existing Neon implementation: Cortex-A510: -9.1% Cortex-A520: +6.8% (!) Cortex-A710: -4.0% Cortex-A715: -1.1% Cortex-A720: -1.1% Cortex-X2: -5.7% Cortex-X3: -5.9% Cortex-X4: -2.8% Cortex-X925: -4.0% Change-Id: Ibf8bfaaeaba51f426649ded621cb0c8948dd9ee1 Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/6592332 Reviewed-by: Frank Barchard <fbarchard@chromium.org>
1074 lines
44 KiB
C++
1074 lines
44 KiB
C++
/*
|
|
* Copyright 2024 The LibYuv Project Authors. All rights reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#include "libyuv/row.h"
|
|
#include "libyuv/row_sve.h"
|
|
|
|
#ifdef __cplusplus
|
|
namespace libyuv {
|
|
extern "C" {
|
|
#endif
|
|
|
|
#if !defined(LIBYUV_DISABLE_SME) && defined(CLANG_HAS_SME) && \
|
|
defined(__aarch64__)
|
|
|
|
#define RGBTOARGB8_SVE_2X \
|
|
/* Inputs: B: z16.h, G: z17.h, R: z18.h, A: z19.b */ \
|
|
"uqshrnb z16.b, z16.h, #6 \n" /* B0 */ \
|
|
"uqshrnb z17.b, z17.h, #6 \n" /* G0 */ \
|
|
"uqshrnb z18.b, z18.h, #6 \n" /* R0 */ \
|
|
"uqshrnt z16.b, z20.h, #6 \n" /* B1 */ \
|
|
"uqshrnt z17.b, z21.h, #6 \n" /* G1 */ \
|
|
"uqshrnt z18.b, z22.h, #6 \n" /* R1 */
|
|
|
|
__arm_locally_streaming void I444ToARGBRow_SME(
|
|
const uint8_t* src_y,
|
|
const uint8_t* src_u,
|
|
const uint8_t* src_v,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
// Streaming-SVE only, no use of ZA tile.
|
|
uint64_t vl;
|
|
asm volatile(
|
|
"cntb %[vl] \n"
|
|
"ptrue p0.b \n" //
|
|
YUVTORGB_SVE_SETUP
|
|
"dup z19.b, #255 \n" // A
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"b.lt 2f \n"
|
|
|
|
// Run bulk of computation with an all-true predicate to avoid predicate
|
|
// generation overhead.
|
|
"ptrue p1.b \n"
|
|
"1: \n" //
|
|
READYUV444_SVE_2X I444TORGB_SVE_2X RGBTOARGB8_SVE_2X
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"st4b {z16.b, z17.b, z18.b, z19.b}, p1, [%[dst_argb]] \n"
|
|
"incb %[dst_argb], all, mul #4 \n"
|
|
"b.ge 1b \n"
|
|
|
|
"2: \n"
|
|
"adds %w[width], %w[width], %w[vl] \n"
|
|
"b.eq 99f \n"
|
|
|
|
// Calculate a predicate for the final iteration to deal with the tail.
|
|
"whilelt p1.b, wzr, %w[width] \n" //
|
|
READYUV444_SVE_2X I444TORGB_SVE_2X RGBTOARGB8_SVE_2X
|
|
"st4b {z16.b, z17.b, z18.b, z19.b}, p1, [%[dst_argb]] \n"
|
|
|
|
"99: \n"
|
|
: [src_y] "+r"(src_y), // %[src_y]
|
|
[src_u] "+r"(src_u), // %[src_u]
|
|
[src_v] "+r"(src_v), // %[src_v]
|
|
[dst_argb] "+r"(dst_argb), // %[dst_argb]
|
|
[width] "+r"(width), // %[width]
|
|
[vl] "=&r"(vl) // %[vl]
|
|
: [kUVCoeff] "r"(&yuvconstants->kUVCoeff), // %[kUVCoeff]
|
|
[kRGBCoeffBias] "r"(&yuvconstants->kRGBCoeffBias) // %[kRGBCoeffBias]
|
|
: "cc", "memory", YUVTORGB_SVE_REGS);
|
|
}
|
|
|
|
__arm_locally_streaming void I444ToRGB24Row_SME(
|
|
const uint8_t* src_y,
|
|
const uint8_t* src_u,
|
|
const uint8_t* src_v,
|
|
uint8_t* dst_rgb24,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
I444ToRGB24Row_SVE_SC(src_y, src_u, src_v, dst_rgb24, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void I400ToARGBRow_SME(
|
|
const uint8_t* src_y,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
// Streaming-SVE only, no use of ZA tile.
|
|
I400ToARGBRow_SVE_SC(src_y, dst_argb, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void I422ToARGBRow_SME(
|
|
const uint8_t* src_y,
|
|
const uint8_t* src_u,
|
|
const uint8_t* src_v,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
// Streaming-SVE only, no use of ZA tile.
|
|
I422ToARGBRow_SVE_SC(src_y, src_u, src_v, dst_argb, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void I422ToRGB24Row_SME(
|
|
const uint8_t* src_y,
|
|
const uint8_t* src_u,
|
|
const uint8_t* src_v,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
I422ToRGB24Row_SVE_SC(src_y, src_u, src_v, dst_argb, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void I422ToRGB565Row_SME(
|
|
const uint8_t* src_y,
|
|
const uint8_t* src_u,
|
|
const uint8_t* src_v,
|
|
uint8_t* dst_rgb565,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
I422ToRGB565Row_SVE_SC(src_y, src_u, src_v, dst_rgb565, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void I422ToARGB1555Row_SME(
|
|
const uint8_t* src_y,
|
|
const uint8_t* src_u,
|
|
const uint8_t* src_v,
|
|
uint8_t* dst_argb1555,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
I422ToARGB1555Row_SVE_SC(src_y, src_u, src_v, dst_argb1555, yuvconstants,
|
|
width);
|
|
}
|
|
|
|
__arm_locally_streaming void I422ToARGB4444Row_SME(
|
|
const uint8_t* src_y,
|
|
const uint8_t* src_u,
|
|
const uint8_t* src_v,
|
|
uint8_t* dst_argb4444,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
I422ToARGB4444Row_SVE_SC(src_y, src_u, src_v, dst_argb4444, yuvconstants,
|
|
width);
|
|
}
|
|
|
|
__arm_locally_streaming void I422ToRGBARow_SME(
|
|
const uint8_t* src_y,
|
|
const uint8_t* src_u,
|
|
const uint8_t* src_v,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
I422ToRGBARow_SVE_SC(src_y, src_u, src_v, dst_argb, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void I422ToAR30Row_SME(
|
|
const uint8_t* src_y,
|
|
const uint8_t* src_u,
|
|
const uint8_t* src_v,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
I422ToAR30Row_SVE_SC(src_y, src_u, src_v, dst_argb, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void I422AlphaToARGBRow_SME(
|
|
const uint8_t* src_y,
|
|
const uint8_t* src_u,
|
|
const uint8_t* src_v,
|
|
const uint8_t* src_a,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
I422AlphaToARGBRow_SVE_SC(src_y, src_u, src_v, src_a, dst_argb, yuvconstants,
|
|
width);
|
|
}
|
|
|
|
__arm_locally_streaming void I444AlphaToARGBRow_SME(
|
|
const uint8_t* src_y,
|
|
const uint8_t* src_u,
|
|
const uint8_t* src_v,
|
|
const uint8_t* src_a,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
I444AlphaToARGBRow_SVE_SC(src_y, src_u, src_v, src_a, dst_argb, yuvconstants,
|
|
width);
|
|
}
|
|
|
|
__arm_locally_streaming void NV12ToARGBRow_SME(
|
|
const uint8_t* src_y,
|
|
const uint8_t* src_uv,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
NV12ToARGBRow_SVE_SC(src_y, src_uv, dst_argb, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void NV21ToARGBRow_SME(
|
|
const uint8_t* src_y,
|
|
const uint8_t* src_vu,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
NV21ToARGBRow_SVE_SC(src_y, src_vu, dst_argb, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void NV12ToRGB24Row_SME(
|
|
const uint8_t* src_y,
|
|
const uint8_t* src_uv,
|
|
uint8_t* dst_rgb24,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
NV12ToRGB24Row_SVE_SC(src_y, src_uv, dst_rgb24, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void NV21ToRGB24Row_SME(
|
|
const uint8_t* src_y,
|
|
const uint8_t* src_vu,
|
|
uint8_t* dst_rgb24,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
NV21ToRGB24Row_SVE_SC(src_y, src_vu, dst_rgb24, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void YUY2ToARGBRow_SME(
|
|
const uint8_t* src_yuy2,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
YUY2ToARGBRow_SVE_SC(src_yuy2, dst_argb, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void UYVYToARGBRow_SME(
|
|
const uint8_t* src_uyvy,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
UYVYToARGBRow_SVE_SC(src_uyvy, dst_argb, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void I210ToARGBRow_SME(
|
|
const uint16_t* src_y,
|
|
const uint16_t* src_u,
|
|
const uint16_t* src_v,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
I210ToARGBRow_SVE_SC(src_y, src_u, src_v, dst_argb, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void I210AlphaToARGBRow_SME(
|
|
const uint16_t* src_y,
|
|
const uint16_t* src_u,
|
|
const uint16_t* src_v,
|
|
const uint16_t* src_a,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
I210AlphaToARGBRow_SVE_SC(src_y, src_u, src_v, src_a, dst_argb, yuvconstants,
|
|
width);
|
|
}
|
|
|
|
__arm_locally_streaming void I210ToAR30Row_SME(
|
|
const uint16_t* src_y,
|
|
const uint16_t* src_u,
|
|
const uint16_t* src_v,
|
|
uint8_t* dst_ar30,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
I210ToAR30Row_SVE_SC(src_y, src_u, src_v, dst_ar30, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void P210ToARGBRow_SME(
|
|
const uint16_t* src_y,
|
|
const uint16_t* src_uv,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
P210ToARGBRow_SVE_SC(src_y, src_uv, dst_argb, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void P210ToAR30Row_SME(
|
|
const uint16_t* src_y,
|
|
const uint16_t* src_uv,
|
|
uint8_t* dst_ar30,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
P210ToAR30Row_SVE_SC(src_y, src_uv, dst_ar30, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void I410ToARGBRow_SME(
|
|
const uint16_t* src_y,
|
|
const uint16_t* src_u,
|
|
const uint16_t* src_v,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
I410ToARGBRow_SVE_SC(src_y, src_u, src_v, dst_argb, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void I410AlphaToARGBRow_SME(
|
|
const uint16_t* src_y,
|
|
const uint16_t* src_u,
|
|
const uint16_t* src_v,
|
|
const uint16_t* src_a,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
I410AlphaToARGBRow_SVE_SC(src_y, src_u, src_v, src_a, dst_argb, yuvconstants,
|
|
width);
|
|
}
|
|
|
|
__arm_locally_streaming void I410ToAR30Row_SME(
|
|
const uint16_t* src_y,
|
|
const uint16_t* src_u,
|
|
const uint16_t* src_v,
|
|
uint8_t* dst_ar30,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
I410ToAR30Row_SVE_SC(src_y, src_u, src_v, dst_ar30, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void P410ToARGBRow_SME(
|
|
const uint16_t* src_y,
|
|
const uint16_t* src_uv,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
P410ToARGBRow_SVE_SC(src_y, src_uv, dst_argb, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void P410ToAR30Row_SME(
|
|
const uint16_t* src_y,
|
|
const uint16_t* src_uv,
|
|
uint8_t* dst_ar30,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
P410ToAR30Row_SVE_SC(src_y, src_uv, dst_ar30, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void I212ToAR30Row_SME(
|
|
const uint16_t* src_y,
|
|
const uint16_t* src_u,
|
|
const uint16_t* src_v,
|
|
uint8_t* dst_ar30,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
I212ToAR30Row_SVE_SC(src_y, src_u, src_v, dst_ar30, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void I212ToARGBRow_SME(
|
|
const uint16_t* src_y,
|
|
const uint16_t* src_u,
|
|
const uint16_t* src_v,
|
|
uint8_t* dst_argb,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
I212ToARGBRow_SVE_SC(src_y, src_u, src_v, dst_argb, yuvconstants, width);
|
|
}
|
|
|
|
__arm_locally_streaming void MultiplyRow_16_SME(const uint16_t* src_y,
|
|
uint16_t* dst_y,
|
|
int scale,
|
|
int width) {
|
|
// Streaming-SVE only, no use of ZA tile.
|
|
int vl;
|
|
asm volatile(
|
|
"cnth %x[vl] \n"
|
|
"mov z0.h, %w[scale] \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"b.lt 2f \n"
|
|
|
|
// Run bulk of computation with an all-true predicate to avoid predicate
|
|
// generation overhead.
|
|
"ptrue p0.h \n"
|
|
"1: \n"
|
|
"ld1h {z1.h}, p0/z, [%[src_y]] \n"
|
|
"incb %[src_y] \n"
|
|
"mul z1.h, z0.h, z1.h \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"st1h {z1.h}, p0, [%[dst_y]] \n"
|
|
"incb %[dst_y] \n"
|
|
"b.ge 1b \n"
|
|
|
|
"2: \n"
|
|
"adds %w[width], %w[width], %w[vl] \n"
|
|
"b.eq 99f \n"
|
|
|
|
// Calculate a predicate for the final iteration to deal with the tail.
|
|
"whilelt p0.h, wzr, %w[width] \n"
|
|
"ld1h {z1.h}, p0/z, [%[src_y]] \n"
|
|
"mul z1.h, z0.h, z1.h \n"
|
|
"st1h {z1.h}, p0, [%[dst_y]] \n"
|
|
|
|
"99: \n"
|
|
: [src_y] "+r"(src_y), // %[src_y]
|
|
[dst_y] "+r"(dst_y), // %[dst_y]
|
|
[width] "+r"(width), // %[width]
|
|
[vl] "=&r"(vl) // %[vl]
|
|
: [scale] "r"(scale) // %[scale]
|
|
: "memory", "cc", "z0", "z1", "p0");
|
|
}
|
|
|
|
__arm_locally_streaming void ARGBMultiplyRow_SME(const uint8_t* src_argb,
|
|
const uint8_t* src_argb1,
|
|
uint8_t* dst_argb,
|
|
int width) {
|
|
// Streaming-SVE only, no use of ZA tile.
|
|
width *= 4;
|
|
int vl;
|
|
asm volatile(
|
|
"cntb %x[vl] \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"b.lt 2f \n"
|
|
|
|
// Run bulk of computation with an all-true predicate to avoid predicate
|
|
// generation overhead.
|
|
"ptrue p0.b \n"
|
|
"1: \n"
|
|
"ld1b {z0.b}, p0/z, [%[src_argb]] \n"
|
|
"ld1b {z1.b}, p0/z, [%[src_argb1]] \n"
|
|
"incb %[src_argb] \n"
|
|
"incb %[src_argb1] \n"
|
|
"umullb z2.h, z0.b, z1.b \n"
|
|
"umullt z1.h, z0.b, z1.b \n"
|
|
"rshrnb z0.b, z2.h, #8 \n"
|
|
"rshrnt z0.b, z1.h, #8 \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"st1b {z0.b}, p0, [%[dst_argb]] \n"
|
|
"incb %[dst_argb] \n"
|
|
"b.ge 1b \n"
|
|
|
|
"2: \n"
|
|
"adds %w[width], %w[width], %w[vl] \n"
|
|
"b.eq 99f \n"
|
|
|
|
// Calculate a predicate for the final iteration to deal with the tail.
|
|
"whilelt p0.b, wzr, %w[width] \n"
|
|
"ld1b {z0.b}, p0/z, [%[src_argb]] \n"
|
|
"ld1b {z1.b}, p0/z, [%[src_argb1]] \n"
|
|
"umullb z2.h, z0.b, z1.b \n"
|
|
"umullt z1.h, z0.b, z1.b \n"
|
|
"rshrnb z0.b, z2.h, #8 \n"
|
|
"rshrnt z0.b, z1.h, #8 \n"
|
|
"st1b {z0.b}, p0, [%[dst_argb]] \n"
|
|
|
|
"99: \n"
|
|
: [src_argb] "+r"(src_argb), // %[src_argb]
|
|
[src_argb1] "+r"(src_argb1), // %[src_argb1]
|
|
[dst_argb] "+r"(dst_argb), // %[dst_argb]
|
|
[width] "+r"(width), // %[width]
|
|
[vl] "=&r"(vl) // %[vl]
|
|
:
|
|
: "memory", "cc", "z0", "z1", "z2", "p0", "p1");
|
|
}
|
|
|
|
__arm_locally_streaming void MergeUVRow_SME(const uint8_t* src_u,
|
|
const uint8_t* src_v,
|
|
uint8_t* dst_uv,
|
|
int width) {
|
|
// Streaming-SVE only, no use of ZA tile.
|
|
int vl;
|
|
asm volatile(
|
|
"cntb %x[vl] \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"b.lt 2f \n"
|
|
|
|
// Run bulk of computation with an all-true predicate to avoid predicate
|
|
// generation overhead.
|
|
"ptrue p0.b \n"
|
|
"1: \n"
|
|
"ld1b {z1.b}, p0/z, [%[src_u]] \n"
|
|
"ld1b {z2.b}, p0/z, [%[src_v]] \n"
|
|
"incb %[src_u] \n"
|
|
"incb %[src_v] \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"st2b {z1.b, z2.b}, p0, [%[dst_uv]] \n"
|
|
"incb %[dst_uv], all, mul #2 \n"
|
|
"b.ge 1b \n"
|
|
|
|
"2: \n"
|
|
"adds %w[width], %w[width], %w[vl] \n"
|
|
"b.eq 99f \n"
|
|
|
|
// Calculate a predicate for the final iteration to deal with the tail.
|
|
"whilelt p0.b, wzr, %w[width] \n"
|
|
"ld1b {z1.b}, p0/z, [%[src_u]] \n"
|
|
"ld1b {z2.b}, p0/z, [%[src_v]] \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"st2b {z1.b, z2.b}, p0, [%[dst_uv]] \n"
|
|
|
|
"99: \n"
|
|
: [src_u] "+r"(src_u), // %[src_u]
|
|
[src_v] "+r"(src_v), // %[src_v]
|
|
[dst_uv] "+r"(dst_uv), // %[dst_uv]
|
|
[width] "+r"(width), // %[width]
|
|
[vl] "=&r"(vl) // %[vl]
|
|
:
|
|
: "memory", "cc", "z0", "z1", "z2", "p0");
|
|
}
|
|
|
|
__arm_locally_streaming void MergeUVRow_16_SME(const uint16_t* src_u,
|
|
const uint16_t* src_v,
|
|
uint16_t* dst_uv,
|
|
int depth,
|
|
int width) {
|
|
int shift = 16 - depth;
|
|
// Streaming-SVE only, no use of ZA tile.
|
|
int vl;
|
|
asm volatile(
|
|
"cnth %x[vl] \n"
|
|
"mov z0.h, %w[shift] \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"b.lt 2f \n"
|
|
|
|
// Run bulk of computation with an all-true predicate to avoid predicate
|
|
// generation overhead.
|
|
"ptrue p0.h \n"
|
|
"1: \n"
|
|
"ld1h {z1.h}, p0/z, [%[src_u]] \n"
|
|
"ld1h {z2.h}, p0/z, [%[src_v]] \n"
|
|
"incb %[src_u] \n"
|
|
"incb %[src_v] \n"
|
|
"lsl z1.h, p0/m, z1.h, z0.h \n"
|
|
"lsl z2.h, p0/m, z2.h, z0.h \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"st2h {z1.h, z2.h}, p0, [%[dst_uv]] \n"
|
|
"incb %[dst_uv], all, mul #2 \n"
|
|
"b.ge 1b \n"
|
|
|
|
"2: \n"
|
|
"adds %w[width], %w[width], %w[vl] \n"
|
|
"b.eq 99f \n"
|
|
|
|
// Calculate a predicate for the final iteration to deal with the tail.
|
|
"whilelt p0.h, wzr, %w[width] \n"
|
|
"ld1h {z1.h}, p0/z, [%[src_u]] \n"
|
|
"ld1h {z2.h}, p0/z, [%[src_v]] \n"
|
|
"lsl z1.h, p0/m, z1.h, z0.h \n"
|
|
"lsl z2.h, p0/m, z2.h, z0.h \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"st2h {z1.h, z2.h}, p0, [%[dst_uv]] \n"
|
|
|
|
"99: \n"
|
|
: [src_u] "+r"(src_u), // %[src_u]
|
|
[src_v] "+r"(src_v), // %[src_v]
|
|
[dst_uv] "+r"(dst_uv), // %[dst_uv]
|
|
[width] "+r"(width), // %[width]
|
|
[vl] "=&r"(vl) // %[vl]
|
|
: [shift] "r"(shift) // %[shift]
|
|
: "memory", "cc", "z0", "z1", "z2", "p0");
|
|
}
|
|
|
|
// Use scale to convert lsb formats to msb, depending how many bits there are:
|
|
// 32768 = 9 bits = shr 1
|
|
// 16384 = 10 bits = shr 2
|
|
// 4096 = 12 bits = shr 4
|
|
// 256 = 16 bits = shr 8
|
|
__arm_locally_streaming void Convert16To8Row_SME(const uint16_t* src_y,
|
|
uint8_t* dst_y,
|
|
int scale,
|
|
int width) {
|
|
// 15 - clz(scale), + 8 to shift result into the high half of the lane to
|
|
// saturate, then we can just use UZP2 to narrow rather than a pair of
|
|
// saturating narrow instructions.
|
|
int shift = 23 - __builtin_clz((int32_t)scale);
|
|
int vl;
|
|
asm volatile(
|
|
"cntb %x[vl] \n"
|
|
"dup z0.h, %w[shift] \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"b.lt 2f \n"
|
|
|
|
// Run bulk of computation with an all-true predicate to avoid predicate
|
|
// generation overhead.
|
|
"ptrue p0.b \n"
|
|
"1: \n"
|
|
"ld1h {z1.h}, p0/z, [%[src_y]] \n"
|
|
"ld1h {z2.h}, p0/z, [%[src_y], #1, mul vl] \n"
|
|
"incb %[src_y], all, mul #2 \n"
|
|
"uqshl z1.h, p0/m, z1.h, z0.h \n"
|
|
"uqshl z2.h, p0/m, z2.h, z0.h \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"uzp2 z1.b, z1.b, z2.b \n"
|
|
"st1b {z1.b}, p0, [%[dst_y]] \n"
|
|
"incb %[dst_y] \n"
|
|
"b.ge 1b \n"
|
|
|
|
"2: \n"
|
|
"adds %w[width], %w[width], %w[vl] \n"
|
|
"b.eq 99f \n"
|
|
|
|
// Calculate a predicate for the final iteration to deal with the tail.
|
|
// We need separate predicates for the load and store instructions since
|
|
// they are operating on different element sizes (.b vs .h).
|
|
"cnth %x[vl] \n"
|
|
"whilelt p0.h, wzr, %w[width] \n"
|
|
"whilelt p1.h, %w[vl], %w[width] \n"
|
|
"whilelt p2.b, wzr, %w[width] \n"
|
|
"ld1h {z1.h}, p0/z, [%[src_y]] \n"
|
|
"ld1h {z2.h}, p1/z, [%[src_y], #1, mul vl] \n"
|
|
"uqshl z1.h, p0/m, z1.h, z0.h \n"
|
|
"uqshl z2.h, p1/m, z2.h, z0.h \n"
|
|
"uzp2 z1.b, z1.b, z2.b \n"
|
|
"st1b {z1.b}, p2, [%[dst_y]] \n"
|
|
|
|
"99: \n"
|
|
: [src_y] "+r"(src_y), // %[src_y]
|
|
[dst_y] "+r"(dst_y), // %[dst_y]
|
|
[width] "+r"(width), // %[width]
|
|
[vl] "=&r"(vl) // %[vl]
|
|
: [shift] "r"(shift) // %[shift]
|
|
: "cc", "memory", "z0", "z1", "z2", "p0", "p1", "p2");
|
|
}
|
|
|
|
__arm_locally_streaming void CopyRow_SME(const uint8_t* src,
|
|
uint8_t* dst,
|
|
int width) {
|
|
// Streaming-SVE only, no use of ZA tile.
|
|
int vl;
|
|
asm volatile(
|
|
"cntb %x[vl] \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"b.lt 2f \n"
|
|
|
|
// Run bulk of computation with an all-true predicate to avoid predicate
|
|
// generation overhead.
|
|
"ptrue p0.b \n"
|
|
"1: \n"
|
|
"ld1b {z0.b}, p0/z, [%[src]] \n"
|
|
"incb %[src] \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"st1b {z0.b}, p0, [%[dst]] \n"
|
|
"incb %[dst] \n"
|
|
"b.ge 1b \n"
|
|
|
|
"2: \n"
|
|
"adds %w[width], %w[width], %w[vl] \n"
|
|
"b.eq 99f \n"
|
|
|
|
// Calculate a predicate for the final iteration to deal with the tail.
|
|
"whilelt p0.b, wzr, %w[width] \n"
|
|
"ld1b {z0.b}, p0/z, [%[src]] \n"
|
|
"st1b {z0.b}, p0, [%[dst]] \n"
|
|
|
|
"99: \n"
|
|
: [src] "+r"(src), // %[src]
|
|
[dst] "+r"(dst), // %[dst]
|
|
[width] "+r"(width), // %[width]
|
|
[vl] "=&r"(vl) // %[vl]
|
|
:
|
|
: "memory", "cc", "z0", "p0");
|
|
}
|
|
|
|
__arm_locally_streaming static void HalfRow_SME(uint8_t* dst_ptr,
|
|
const uint8_t* src_ptr,
|
|
ptrdiff_t src_stride,
|
|
int width) {
|
|
const uint8_t* src_ptr1 = src_ptr + src_stride;
|
|
|
|
int vl;
|
|
asm volatile(
|
|
"cntb %x[vl] \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"b.lt 2f \n"
|
|
|
|
// Run bulk of computation with an all-true predicate to avoid predicate
|
|
// generation overhead.
|
|
"ptrue p0.b \n"
|
|
"1: \n"
|
|
"ld1b {z2.b}, p0/z, [%[src_ptr]] \n"
|
|
"ld1b {z3.b}, p0/z, [%[src_ptr1]] \n"
|
|
"incb %[src_ptr] \n"
|
|
"incb %[src_ptr1] \n"
|
|
"urhadd z2.b, p0/m, z2.b, z3.b \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"st1b {z2.b}, p0, [%[dst_ptr]] \n"
|
|
"incb %[dst_ptr] \n"
|
|
"b.ge 1b \n"
|
|
|
|
"2: \n"
|
|
"adds %w[width], %w[width], %w[vl] \n"
|
|
"b.eq 99f \n"
|
|
|
|
// Calculate a predicate for the final iteration to deal with the tail.
|
|
"whilelt p0.b, wzr, %w[width] \n"
|
|
"ld1b {z2.b}, p0/z, [%[src_ptr]] \n"
|
|
"ld1b {z3.b}, p0/z, [%[src_ptr1]] \n"
|
|
"urhadd z2.b, p0/m, z2.b, z3.b \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"st1b {z2.b}, p0, [%[dst_ptr]] \n"
|
|
|
|
"99: \n"
|
|
: [src_ptr] "+r"(src_ptr), // %[src_ptr]
|
|
[src_ptr1] "+r"(src_ptr1), // %[src_ptr1]
|
|
[dst_ptr] "+r"(dst_ptr), // %[dst_ptr]
|
|
[width] "+r"(width), // %[width]
|
|
[vl] "=&r"(vl) // %[vl]
|
|
:
|
|
: "cc", "memory", "z0", "z1", "z2", "z3", "p0");
|
|
}
|
|
|
|
__arm_locally_streaming void InterpolateRow_SME(uint8_t* dst_ptr,
|
|
const uint8_t* src_ptr,
|
|
ptrdiff_t src_stride,
|
|
int width,
|
|
int source_y_fraction) {
|
|
int y1_fraction = source_y_fraction;
|
|
int y0_fraction = 256 - y1_fraction;
|
|
const uint8_t* src_ptr1 = src_ptr + src_stride;
|
|
|
|
if (y0_fraction == 0) {
|
|
CopyRow_SME(src_ptr1, dst_ptr, width);
|
|
return;
|
|
}
|
|
if (y0_fraction == 128) {
|
|
HalfRow_SME(dst_ptr, src_ptr, src_stride, width);
|
|
return;
|
|
}
|
|
if (y0_fraction == 256) {
|
|
CopyRow_SME(src_ptr, dst_ptr, width);
|
|
return;
|
|
}
|
|
|
|
int vl;
|
|
asm volatile(
|
|
"cntb %x[vl] \n"
|
|
"dup z0.b, %w[y0_fraction] \n"
|
|
"dup z1.b, %w[y1_fraction] \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"b.lt 2f \n"
|
|
|
|
// Run bulk of computation with an all-true predicate to avoid predicate
|
|
// generation overhead.
|
|
"ptrue p0.b \n"
|
|
"1: \n"
|
|
"ld1b {z2.b}, p0/z, [%[src_ptr]] \n"
|
|
"ld1b {z3.b}, p0/z, [%[src_ptr1]] \n"
|
|
"incb %[src_ptr] \n"
|
|
"incb %[src_ptr1] \n"
|
|
"umullb z4.h, z2.b, z0.b \n"
|
|
"umullt z2.h, z2.b, z0.b \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"umlalb z4.h, z3.b, z1.b \n"
|
|
"umlalt z2.h, z3.b, z1.b \n"
|
|
"rshrnb z3.b, z4.h, #8 \n"
|
|
"rshrnt z3.b, z2.h, #8 \n"
|
|
"st1b {z3.b}, p0, [%[dst_ptr]] \n"
|
|
"incb %[dst_ptr] \n"
|
|
"b.ge 1b \n"
|
|
|
|
"2: \n"
|
|
"adds %w[width], %w[width], %w[vl] \n"
|
|
"b.eq 99f \n"
|
|
|
|
// Calculate a predicate for the final iteration to deal with the tail.
|
|
"whilelt p0.b, wzr, %w[width] \n"
|
|
"ld1b {z2.b}, p0/z, [%[src_ptr]] \n"
|
|
"ld1b {z3.b}, p0/z, [%[src_ptr1]] \n"
|
|
"umullb z4.h, z2.b, z0.b \n"
|
|
"umullt z2.h, z2.b, z0.b \n"
|
|
"umlalb z4.h, z3.b, z1.b \n"
|
|
"umlalt z2.h, z3.b, z1.b \n"
|
|
"rshrnb z3.b, z4.h, #8 \n"
|
|
"rshrnt z3.b, z2.h, #8 \n"
|
|
"st1b {z3.b}, p0, [%[dst_ptr]] \n"
|
|
|
|
"99: \n"
|
|
: [src_ptr] "+r"(src_ptr), // %[src_ptr]
|
|
[src_ptr1] "+r"(src_ptr1), // %[src_ptr1]
|
|
[dst_ptr] "+r"(dst_ptr), // %[dst_ptr]
|
|
[width] "+r"(width), // %[width]
|
|
[vl] "=&r"(vl) // %[vl]
|
|
: [y0_fraction] "r"(y0_fraction), // %[y0_fraction]
|
|
[y1_fraction] "r"(y1_fraction) // %[y1_fraction]
|
|
: "cc", "memory", "z0", "z1", "z2", "z3", "z4", "p0");
|
|
}
|
|
|
|
__arm_locally_streaming static void HalfRow_16_SME(uint16_t* dst_ptr,
|
|
const uint16_t* src_ptr,
|
|
ptrdiff_t src_stride,
|
|
int width) {
|
|
const uint16_t* src_ptr1 = src_ptr + src_stride;
|
|
|
|
int vl;
|
|
asm volatile(
|
|
"cnth %x[vl] \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"b.lt 2f \n"
|
|
|
|
// Run bulk of computation with an all-true predicate to avoid predicate
|
|
// generation overhead.
|
|
"ptrue p0.h \n"
|
|
"1: \n"
|
|
"ld1h {z2.h}, p0/z, [%[src_ptr]] \n"
|
|
"ld1h {z3.h}, p0/z, [%[src_ptr1]] \n"
|
|
"incb %[src_ptr] \n"
|
|
"incb %[src_ptr1] \n"
|
|
"urhadd z2.h, p0/m, z2.h, z3.h \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"st1h {z2.h}, p0, [%[dst_ptr]] \n"
|
|
"incb %[dst_ptr] \n"
|
|
"b.ge 1b \n"
|
|
|
|
"2: \n"
|
|
"adds %w[width], %w[width], %w[vl] \n"
|
|
"b.eq 99f \n"
|
|
|
|
// Calculate a predicate for the final iteration to deal with the tail.
|
|
"whilelt p0.h, wzr, %w[width] \n"
|
|
"ld1h {z2.h}, p0/z, [%[src_ptr]] \n"
|
|
"ld1h {z3.h}, p0/z, [%[src_ptr1]] \n"
|
|
"urhadd z2.h, p0/m, z2.h, z3.h \n"
|
|
"st1h {z2.h}, p0, [%[dst_ptr]] \n"
|
|
|
|
"99: \n"
|
|
: [src_ptr] "+r"(src_ptr), // %[src_ptr]
|
|
[src_ptr1] "+r"(src_ptr1), // %[src_ptr1]
|
|
[dst_ptr] "+r"(dst_ptr), // %[dst_ptr]
|
|
[width] "+r"(width), // %[width]
|
|
[vl] "=&r"(vl) // %[vl]
|
|
:
|
|
: "cc", "memory", "z0", "z1", "z2", "z3", "p0");
|
|
}
|
|
|
|
__arm_locally_streaming void InterpolateRow_16_SME(uint16_t* dst_ptr,
|
|
const uint16_t* src_ptr,
|
|
ptrdiff_t src_stride,
|
|
int width,
|
|
int source_y_fraction) {
|
|
int y1_fraction = source_y_fraction;
|
|
int y0_fraction = 256 - y1_fraction;
|
|
const uint16_t* src_ptr1 = src_ptr + src_stride;
|
|
|
|
if (y0_fraction == 0) {
|
|
CopyRow_SME((const uint8_t*)src_ptr1, (uint8_t*)dst_ptr,
|
|
width * sizeof(uint16_t));
|
|
return;
|
|
}
|
|
if (y0_fraction == 128) {
|
|
HalfRow_16_SME(dst_ptr, src_ptr, src_stride, width);
|
|
return;
|
|
}
|
|
if (y0_fraction == 256) {
|
|
CopyRow_SME((const uint8_t*)src_ptr, (uint8_t*)dst_ptr,
|
|
width * sizeof(uint16_t));
|
|
return;
|
|
}
|
|
|
|
int vl;
|
|
asm volatile(
|
|
"cnth %x[vl] \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"dup z0.h, %w[y0_fraction] \n"
|
|
"dup z1.h, %w[y1_fraction] \n"
|
|
"b.lt 2f \n"
|
|
|
|
// Run bulk of computation with an all-true predicate to avoid predicate
|
|
// generation overhead.
|
|
"ptrue p0.h \n"
|
|
"1: \n"
|
|
"ld1h {z2.h}, p0/z, [%[src_ptr]] \n"
|
|
"ld1h {z3.h}, p0/z, [%[src_ptr1]] \n"
|
|
"incb %[src_ptr] \n"
|
|
"incb %[src_ptr1] \n"
|
|
"umullb z4.s, z2.h, z0.h \n"
|
|
"umullt z2.s, z2.h, z0.h \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"umlalb z4.s, z3.h, z1.h \n"
|
|
"umlalt z2.s, z3.h, z1.h \n"
|
|
"rshrnb z3.h, z4.s, #8 \n"
|
|
"rshrnt z3.h, z2.s, #8 \n"
|
|
"st1h {z3.h}, p0, [%[dst_ptr]] \n"
|
|
"incb %[dst_ptr] \n"
|
|
"b.ge 1b \n"
|
|
|
|
"2: \n"
|
|
"adds %w[width], %w[width], %w[vl] \n"
|
|
"b.eq 99f \n"
|
|
|
|
// Calculate a predicate for the final iteration to deal with the tail.
|
|
"whilelt p0.h, wzr, %w[width] \n"
|
|
"ld1h {z2.h}, p0/z, [%[src_ptr]] \n"
|
|
"ld1h {z3.h}, p0/z, [%[src_ptr1]] \n"
|
|
"umullb z4.s, z2.h, z0.h \n"
|
|
"umullt z2.s, z2.h, z0.h \n"
|
|
"umlalb z4.s, z3.h, z1.h \n"
|
|
"umlalt z2.s, z3.h, z1.h \n"
|
|
"rshrnb z3.h, z4.s, #8 \n"
|
|
"rshrnt z3.h, z2.s, #8 \n"
|
|
"st1h {z3.h}, p0, [%[dst_ptr]] \n"
|
|
|
|
"99: \n"
|
|
: [src_ptr] "+r"(src_ptr), // %[src_ptr]
|
|
[src_ptr1] "+r"(src_ptr1), // %[src_ptr1]
|
|
[dst_ptr] "+r"(dst_ptr), // %[dst_ptr]
|
|
[width] "+r"(width), // %[width]
|
|
[vl] "=&r"(vl) // %[vl]
|
|
: [y0_fraction] "r"(y0_fraction), // %[y0_fraction]
|
|
[y1_fraction] "r"(y1_fraction) // %[y1_fraction]
|
|
: "cc", "memory", "z0", "z1", "z2", "z3", "z4", "p0");
|
|
}
|
|
|
|
__arm_locally_streaming static void HalfRow_16To8_SME(uint8_t* dst_ptr,
|
|
const uint16_t* src_ptr,
|
|
ptrdiff_t src_stride,
|
|
int scale,
|
|
int width) {
|
|
const uint16_t* src_ptr1 = src_ptr + src_stride;
|
|
|
|
// 15 - clz(scale), + 8 to shift result into the high half of the lane to
|
|
// saturate, then we can just use UZP2 to narrow rather than a pair of
|
|
// saturating narrow instructions.
|
|
int shift = 23 - __builtin_clz((int32_t)scale);
|
|
|
|
int vl;
|
|
asm volatile(
|
|
"cnth %x[vl] \n"
|
|
"dup z31.h, %w[shift] \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"b.lt 2f \n"
|
|
|
|
// Run bulk of computation with an all-true predicate to avoid predicate
|
|
// generation overhead.
|
|
"ptrue p0.h \n"
|
|
"1: \n"
|
|
"ld1h {z2.h}, p0/z, [%[src_ptr]] \n"
|
|
"ld1h {z3.h}, p0/z, [%[src_ptr1]] \n"
|
|
"incb %[src_ptr] \n"
|
|
"incb %[src_ptr1] \n"
|
|
"urhadd z2.h, p0/m, z2.h, z3.h \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"uqshl z2.h, p0/m, z2.h, z31.h \n"
|
|
"shrnb z2.b, z2.h, #8 \n"
|
|
"st1b {z2.h}, p0, [%[dst_ptr]] \n"
|
|
"inch %[dst_ptr] \n"
|
|
"b.ge 1b \n"
|
|
|
|
"2: \n"
|
|
"adds %w[width], %w[width], %w[vl] \n"
|
|
"b.eq 99f \n"
|
|
|
|
// Calculate a predicate for the final iteration to deal with the tail.
|
|
"whilelt p0.h, wzr, %w[width] \n"
|
|
"ld1h {z2.h}, p0/z, [%[src_ptr]] \n"
|
|
"ld1h {z3.h}, p0/z, [%[src_ptr1]] \n"
|
|
"urhadd z2.h, p0/m, z2.h, z3.h \n"
|
|
"uqshl z2.h, p0/m, z2.h, z31.h \n"
|
|
"shrnb z2.b, z2.h, #8 \n"
|
|
"st1b {z2.h}, p0, [%[dst_ptr]] \n"
|
|
|
|
"99: \n"
|
|
: [src_ptr] "+r"(src_ptr), // %[src_ptr]
|
|
[src_ptr1] "+r"(src_ptr1), // %[src_ptr1]
|
|
[dst_ptr] "+r"(dst_ptr), // %[dst_ptr]
|
|
[width] "+r"(width), // %[width]
|
|
[vl] "=&r"(vl) // %[vl]
|
|
: [shift] "r"(shift) // %[shift]
|
|
: "cc", "memory", "z0", "z1", "z2", "z3", "z31", "p0");
|
|
}
|
|
|
|
// Use scale to convert lsb formats to msb, depending how many bits there are:
|
|
// 32768 = 9 bits
|
|
// 16384 = 10 bits
|
|
// 4096 = 12 bits
|
|
// 256 = 16 bits
|
|
// TODO(fbarchard): change scale to bits
|
|
__arm_locally_streaming void InterpolateRow_16To8_SME(uint8_t* dst_ptr,
|
|
const uint16_t* src_ptr,
|
|
ptrdiff_t src_stride,
|
|
int scale,
|
|
int width,
|
|
int source_y_fraction) {
|
|
int y1_fraction = source_y_fraction;
|
|
int y0_fraction = 256 - y1_fraction;
|
|
const uint16_t* src_ptr1 = src_ptr + src_stride;
|
|
|
|
// y0_fraction == 0 is never called here.
|
|
if (y0_fraction == 128) {
|
|
HalfRow_16To8_SME(dst_ptr, src_ptr, src_stride, scale, width);
|
|
return;
|
|
}
|
|
if (y0_fraction == 256) {
|
|
Convert16To8Row_SME(src_ptr, dst_ptr, scale, width);
|
|
return;
|
|
}
|
|
|
|
// 15 - clz(scale), + 8 to shift result into the high half of the lane to
|
|
// saturate, then we can just use UZP2 to narrow rather than a pair of
|
|
// saturating narrow instructions.
|
|
int shift = 23 - __builtin_clz((int32_t)scale);
|
|
|
|
int vl;
|
|
asm volatile(
|
|
"cnth %x[vl] \n"
|
|
"dup z31.h, %w[shift] \n"
|
|
"dup z0.h, %w[y0_fraction] \n"
|
|
"dup z1.h, %w[y1_fraction] \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"b.lt 2f \n"
|
|
|
|
// Run bulk of computation with an all-true predicate to avoid predicate
|
|
// generation overhead.
|
|
"ptrue p0.h \n"
|
|
"1: \n"
|
|
"ld1h {z2.h}, p0/z, [%[src_ptr]] \n"
|
|
"ld1h {z3.h}, p0/z, [%[src_ptr1]] \n"
|
|
"incb %[src_ptr] \n"
|
|
"incb %[src_ptr1] \n"
|
|
"umullb z4.s, z2.h, z0.h \n"
|
|
"umullt z2.s, z2.h, z0.h \n"
|
|
"subs %w[width], %w[width], %w[vl] \n"
|
|
"umlalb z4.s, z3.h, z1.h \n"
|
|
"umlalt z2.s, z3.h, z1.h \n"
|
|
"rshrnb z3.h, z4.s, #8 \n"
|
|
"rshrnt z3.h, z2.s, #8 \n"
|
|
"uqshl z3.h, p0/m, z3.h, z31.h \n"
|
|
"shrnb z3.b, z3.h, #8 \n"
|
|
"st1b {z3.h}, p0, [%[dst_ptr]] \n"
|
|
"inch %[dst_ptr] \n"
|
|
"b.ge 1b \n"
|
|
|
|
"2: \n"
|
|
"adds %w[width], %w[width], %w[vl] \n"
|
|
"b.eq 99f \n"
|
|
|
|
// Calculate a predicate for the final iteration to deal with the tail.
|
|
"whilelt p0.h, wzr, %w[width] \n"
|
|
"ld1h {z2.h}, p0/z, [%[src_ptr]] \n"
|
|
"ld1h {z3.h}, p0/z, [%[src_ptr1]] \n"
|
|
"umullb z4.s, z2.h, z0.h \n"
|
|
"umullt z2.s, z2.h, z0.h \n"
|
|
"umlalb z4.s, z3.h, z1.h \n"
|
|
"umlalt z2.s, z3.h, z1.h \n"
|
|
"rshrnb z3.h, z4.s, #8 \n"
|
|
"rshrnt z3.h, z2.s, #8 \n"
|
|
"uqshl z3.h, p0/m, z3.h, z31.h \n"
|
|
"shrnb z3.b, z3.h, #8 \n"
|
|
"st1b {z3.h}, p0, [%[dst_ptr]] \n"
|
|
|
|
"99: \n"
|
|
: [src_ptr] "+r"(src_ptr), // %[src_ptr]
|
|
[src_ptr1] "+r"(src_ptr1), // %[src_ptr1]
|
|
[dst_ptr] "+r"(dst_ptr), // %[dst_ptr]
|
|
[width] "+r"(width), // %[width]
|
|
[vl] "=&r"(vl) // %[vl]
|
|
: [y0_fraction] "r"(y0_fraction), // %[y0_fraction]
|
|
[y1_fraction] "r"(y1_fraction), // %[y1_fraction]
|
|
[shift] "r"(shift) // %[shift]
|
|
: "cc", "memory", "z0", "z1", "z2", "z3", "z4", "z31", "p0");
|
|
}
|
|
|
|
__arm_locally_streaming void Convert8To8Row_SME(const uint8_t* src_y,
|
|
uint8_t* dst_y,
|
|
int scale,
|
|
int bias,
|
|
int width) {
|
|
Convert8To8Row_SVE_SC(src_y, dst_y, scale, bias, width);
|
|
}
|
|
|
|
#endif // !defined(LIBYUV_DISABLE_SME) && defined(CLANG_HAS_SME) &&
|
|
// defined(__aarch64__)
|
|
|
|
#ifdef __cplusplus
|
|
} // extern "C"
|
|
} // namespace libyuv
|
|
#endif
|