diff options
Diffstat (limited to 'chromium/third_party/libyuv/source/scale_argb_neon.cc')
| -rw-r--r-- | chromium/third_party/libyuv/source/scale_argb_neon.cc | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/chromium/third_party/libyuv/source/scale_argb_neon.cc b/chromium/third_party/libyuv/source/scale_argb_neon.cc deleted file mode 100644 index 51b00872441..00000000000 --- a/chromium/third_party/libyuv/source/scale_argb_neon.cc +++ /dev/null @@ -1,142 +0,0 @@ -/* - * Copyright 2012 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/basic_types.h" -#include "libyuv/row.h" - -#ifdef __cplusplus -namespace libyuv { -extern "C" { -#endif - -// This module is for GCC Neon -#if !defined(LIBYUV_DISABLE_NEON) && defined(__ARM_NEON__) - -void ScaleARGBRowDown2_NEON(const uint8* src_ptr, ptrdiff_t /* src_stride */, - uint8* dst, int dst_width) { - asm volatile ( - "1: \n" - // load even pixels into q0, odd into q1 - "vld2.32 {q0, q1}, [%0]! \n" - "vld2.32 {q2, q3}, [%0]! \n" - "subs %2, %2, #8 \n" // 8 processed per loop - "vst1.8 {q1}, [%1]! \n" // store odd pixels - "vst1.8 {q3}, [%1]! \n" - "bgt 1b \n" - : "+r"(src_ptr), // %0 - "+r"(dst), // %1 - "+r"(dst_width) // %2 - : - : "memory", "cc", "q0", "q1", "q2", "q3" // Clobber List - ); -} - -void ScaleARGBRowDown2Box_NEON(const uint8* src_ptr, ptrdiff_t src_stride, - uint8* dst, int dst_width) { - asm volatile ( - // change the stride to row 2 pointer - "add %1, %1, %0 \n" - "1: \n" - "vld4.8 {d0, d2, d4, d6}, [%0]! \n" // load 8 ARGB pixels. - "vld4.8 {d1, d3, d5, d7}, [%0]! \n" // load next 8 ARGB pixels. - "subs %3, %3, #8 \n" // 8 processed per loop. - "vpaddl.u8 q0, q0 \n" // B 16 bytes -> 8 shorts. - "vpaddl.u8 q1, q1 \n" // G 16 bytes -> 8 shorts. - "vpaddl.u8 q2, q2 \n" // R 16 bytes -> 8 shorts. - "vpaddl.u8 q3, q3 \n" // A 16 bytes -> 8 shorts. - "vld4.8 {d16, d18, d20, d22}, [%1]! \n" // load 8 more ARGB pixels. - "vld4.8 {d17, d19, d21, d23}, [%1]! \n" // load last 8 ARGB pixels. - "vpadal.u8 q0, q8 \n" // B 16 bytes -> 8 shorts. - "vpadal.u8 q1, q9 \n" // G 16 bytes -> 8 shorts. - "vpadal.u8 q2, q10 \n" // R 16 bytes -> 8 shorts. - "vpadal.u8 q3, q11 \n" // A 16 bytes -> 8 shorts. - "vrshrn.u16 d0, q0, #2 \n" // downshift, round and pack - "vrshrn.u16 d1, q1, #2 \n" - "vrshrn.u16 d2, q2, #2 \n" - "vrshrn.u16 d3, q3, #2 \n" - "vst4.8 {d0, d1, d2, d3}, [%2]! \n" - "bgt 1b \n" - : "+r"(src_ptr), // %0 - "+r"(src_stride), // %1 - "+r"(dst), // %2 - "+r"(dst_width) // %3 - : - : "memory", "cc", "q0", "q1", "q2", "q3", "q8", "q9", "q10", "q11" - ); -} - -// Reads 4 pixels at a time. -// Alignment requirement: src_argb 4 byte aligned. -void ScaleARGBRowDownEven_NEON(const uint8* src_argb, ptrdiff_t, int src_stepx, - uint8* dst_argb, int dst_width) { - asm volatile ( - "mov r12, %3, lsl #2 \n" - ".p2align 2 \n" - "1: \n" - "vld1.32 {d0[0]}, [%0], r12 \n" - "vld1.32 {d0[1]}, [%0], r12 \n" - "vld1.32 {d1[0]}, [%0], r12 \n" - "vld1.32 {d1[1]}, [%0], r12 \n" - "subs %2, %2, #4 \n" // 4 pixels per loop. - "vst1.8 {q0}, [%1]! \n" - "bgt 1b \n" - : "+r"(src_argb), // %0 - "+r"(dst_argb), // %1 - "+r"(dst_width) // %2 - : "r"(src_stepx) // %3 - : "memory", "cc", "r12", "q0" - ); -} - -// Reads 4 pixels at a time. -// Alignment requirement: src_argb 4 byte aligned. -void ScaleARGBRowDownEvenBox_NEON(const uint8* src_argb, ptrdiff_t src_stride, - int src_stepx, - uint8* dst_argb, int dst_width) { - asm volatile ( - "mov r12, %4, lsl #2 \n" - "add %1, %1, %0 \n" - ".p2align 2 \n" - "1: \n" - "vld1.8 {d0}, [%0], r12 \n" // Read 4 2x2 blocks -> 2x1 - "vld1.8 {d1}, [%1], r12 \n" - "vld1.8 {d2}, [%0], r12 \n" - "vld1.8 {d3}, [%1], r12 \n" - "vld1.8 {d4}, [%0], r12 \n" - "vld1.8 {d5}, [%1], r12 \n" - "vld1.8 {d6}, [%0], r12 \n" - "vld1.8 {d7}, [%1], r12 \n" - "vaddl.u8 q0, d0, d1 \n" - "vaddl.u8 q1, d2, d3 \n" - "vaddl.u8 q2, d4, d5 \n" - "vaddl.u8 q3, d6, d7 \n" - "vswp.8 d1, d2 \n" // ab_cd -> ac_bd - "vswp.8 d5, d6 \n" // ef_gh -> eg_fh - "vadd.u16 q0, q0, q1 \n" // (a+b)_(c+d) - "vadd.u16 q2, q2, q3 \n" // (e+f)_(g+h) - "vrshrn.u16 d0, q0, #2 \n" // first 2 pixels. - "vrshrn.u16 d1, q2, #2 \n" // next 2 pixels. - "subs %3, %3, #4 \n" // 4 pixels per loop. - "vst1.8 {q0}, [%2]! \n" - "bgt 1b \n" - : "+r"(src_argb), // %0 - "+r"(src_stride), // %1 - "+r"(dst_argb), // %2 - "+r"(dst_width) // %3 - : "r"(src_stepx) // %4 - : "memory", "cc", "r12", "q0", "q1", "q2", "q3" - ); -} -#endif // __ARM_NEON__ - -#ifdef __cplusplus -} // extern "C" -} // namespace libyuv -#endif |