voice-gateway/third_party/yuv/source/row_dspr2.cc

/*
 *  Copyright (c) 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/row.h"

#ifdef __cplusplus
namespace libyuv {
extern "C" {
#endif

// The following are available on Mips platforms:
#if !defined(LIBYUV_DISABLE_DSPR2) && defined(__mips__) && \
    (_MIPS_SIM == _MIPS_SIM_ABI32)

#ifdef HAS_COPYROW_MIPS
void CopyRow_MIPS(const uint8* src, uint8* dst, int count) {
  __asm__ __volatile__(
      ".set      noreorder                         \n"
      ".set      noat                              \n"
      "slti      $at, %[count], 8                  \n"
      "bne       $at ,$zero, $last8                \n"
      "xor       $t8, %[src], %[dst]               \n"
      "andi      $t8, $t8, 0x3                     \n"

      "bne       $t8, $zero, unaligned             \n"
      "negu      $a3, %[dst]                       \n"
      // make dst/src aligned
      "andi      $a3, $a3, 0x3                     \n"
      "beq       $a3, $zero, $chk16w               \n"
      // word-aligned now count is the remining bytes count
      "subu     %[count], %[count], $a3            \n"

      "lwr       $t8, 0(%[src])                    \n"
      "addu      %[src], %[src], $a3               \n"
      "swr       $t8, 0(%[dst])                    \n"
      "addu      %[dst], %[dst], $a3               \n"

      // Now the dst/src are mutually word-aligned with word-aligned addresses
      "$chk16w:                                    \n"
      "andi      $t8, %[count], 0x3f               \n"  // whole 64-B chunks?
      // t8 is the byte count after 64-byte chunks
      "beq       %[count], $t8, chk8w              \n"
      // There will be at most 1 32-byte chunk after it
      "subu      $a3, %[count], $t8                \n"  // the reminder
      // Here a3 counts bytes in 16w chunks
      "addu      $a3, %[dst], $a3                  \n"
      // Now a3 is the final dst after 64-byte chunks
      "addu      $t0, %[dst], %[count]             \n"
      // t0 is the "past the end" address

      // When in the loop we exercise "pref 30,x(a1)", the a1+x should not be
      // past
      // the "t0-32" address
      // This means: for x=128 the last "safe" a1 address is "t0-160"
      // Alternatively, for x=64 the last "safe" a1 address is "t0-96"
      // we will use "pref 30,128(a1)", so "t0-160" is the limit
      "subu      $t9, $t0, 160                     \n"
      // t9 is the "last safe pref 30,128(a1)" address
      "pref      0, 0(%[src])                      \n"  // first line of src
      "pref      0, 32(%[src])                     \n"  // second line of src
      "pref      0, 64(%[src])                     \n"
      "pref      30, 32(%[dst])                    \n"
      // In case the a1 > t9 don't use "pref 30" at all
      "sltu      $v1, $t9, %[dst]                  \n"
      "bgtz      $v1, $loop16w                     \n"
      "nop                                         \n"
      // otherwise, start with using pref30
      "pref      30, 64(%[dst])                    \n"
      "$loop16w:                                    \n"
      "pref      0, 96(%[src])                     \n"
      "lw        $t0, 0(%[src])                    \n"
      "bgtz      $v1, $skip_pref30_96              \n"  // skip
      "lw        $t1, 4(%[src])                    \n"
      "pref      30, 96(%[dst])                    \n"  // continue
      "$skip_pref30_96:                            \n"
      "lw        $t2, 8(%[src])                    \n"
      "lw        $t3, 12(%[src])                   \n"
      "lw        $t4, 16(%[src])                   \n"
      "lw        $t5, 20(%[src])                   \n"
      "lw        $t6, 24(%[src])                   \n"
      "lw        $t7, 28(%[src])                   \n"
      "pref      0, 128(%[src])                    \n"
      //  bring the next lines of src, addr 128
      "sw        $t0, 0(%[dst])                    \n"
      "sw        $t1, 4(%[dst])                    \n"
      "sw        $t2, 8(%[dst])                    \n"
      "sw        $t3, 12(%[dst])                   \n"
      "sw        $t4, 16(%[dst])                   \n"
      "sw        $t5, 20(%[dst])                   \n"
      "sw        $t6, 24(%[dst])                   \n"
      "sw        $t7, 28(%[dst])                   \n"
      "lw        $t0, 32(%[src])                   \n"
      "bgtz      $v1, $skip_pref30_128             \n"  // skip pref 30,128(a1)
      "lw        $t1, 36(%[src])                   \n"
      "pref      30, 128(%[dst])                   \n"  // set dest, addr 128
      "$skip_pref30_128:                           \n"
      "lw        $t2, 40(%[src])                   \n"
      "lw        $t3, 44(%[src])                   \n"
      "lw        $t4, 48(%[src])                   \n"
      "lw        $t5, 52(%[src])                   \n"
      "lw        $t6, 56(%[src])                   \n"
      "lw        $t7, 60(%[src])                   \n"
      "pref      0, 160(%[src])                    \n"
      // bring the next lines of src, addr 160
      "sw        $t0, 32(%[dst])                   \n"
      "sw        $t1, 36(%[dst])                   \n"
      "sw        $t2, 40(%[dst])                   \n"
      "sw        $t3, 44(%[dst])                   \n"
      "sw        $t4, 48(%[dst])                   \n"
      "sw        $t5, 52(%[dst])                   \n"
      "sw        $t6, 56(%[dst])                   \n"
      "sw        $t7, 60(%[dst])                   \n"

      "addiu     %[dst], %[dst], 64                \n"  // adding 64 to dest
      "sltu      $v1, $t9, %[dst]                  \n"
      "bne       %[dst], $a3, $loop16w             \n"
      " addiu    %[src], %[src], 64                \n"  // adding 64 to src
      "move      %[count], $t8                     \n"

      // Here we have src and dest word-aligned but less than 64-bytes to go

      "chk8w:                                      \n"
      "pref      0, 0x0(%[src])                    \n"
      "andi      $t8, %[count], 0x1f               \n"  // 32-byte chunk?
      // the t8 is the reminder count past 32-bytes
      "beq       %[count], $t8, chk1w              \n"
      // count=t8,no 32-byte chunk
      " nop                                        \n"

      "lw        $t0, 0(%[src])                    \n"
      "lw        $t1, 4(%[src])                    \n"
      "lw        $t2, 8(%[src])                    \n"
      "lw        $t3, 12(%[src])                   \n"
      "lw        $t4, 16(%[src])                   \n"
      "lw        $t5, 20(%[src])                   \n"
      "lw        $t6, 24(%[src])                   \n"
      "lw        $t7, 28(%[src])                   \n"
      "addiu     %[src], %[src], 32                \n"

      "sw        $t0, 0(%[dst])                    \n"
      "sw        $t1, 4(%[dst])                    \n"
      "sw        $t2, 8(%[dst])                    \n"
      "sw        $t3, 12(%[dst])                   \n"
      "sw        $t4, 16(%[dst])                   \n"
      "sw        $t5, 20(%[dst])                   \n"
      "sw        $t6, 24(%[dst])                   \n"
      "sw        $t7, 28(%[dst])                   \n"
      "addiu     %[dst], %[dst], 32                \n"

      "chk1w:                                      \n"
      "andi      %[count], $t8, 0x3                \n"
      // now count is the reminder past 1w chunks
      "beq       %[count], $t8, $last8             \n"
      " subu     $a3, $t8, %[count]                \n"
      // a3 is count of bytes in 1w chunks
      "addu      $a3, %[dst], $a3                  \n"
      // now a3 is the dst address past the 1w chunks
      // copying in words (4-byte chunks)
      "$wordCopy_loop:                             \n"
      "lw        $t3, 0(%[src])                    \n"
      // the first t3 may be equal t0 ... optimize?
      "addiu     %[src], %[src],4                  \n"
      "addiu     %[dst], %[dst],4                  \n"
      "bne       %[dst], $a3,$wordCopy_loop        \n"
      " sw       $t3, -4(%[dst])                   \n"

      // For the last (<8) bytes
      "$last8:                                     \n"
      "blez      %[count], leave                   \n"
      " addu     $a3, %[dst], %[count]             \n"  // a3 -last dst address
      "$last8loop:                                 \n"
      "lb        $v1, 0(%[src])                    \n"
      "addiu     %[src], %[src], 1                 \n"
      "addiu     %[dst], %[dst], 1                 \n"
      "bne       %[dst], $a3, $last8loop           \n"
      " sb       $v1, -1(%[dst])                   \n"

      "leave:                                      \n"
      "  j       $ra                               \n"
      "  nop                                       \n"

      //
      // UNALIGNED case
      //

      "unaligned:                                  \n"
      // got here with a3="negu a1"
      "andi      $a3, $a3, 0x3                     \n"  // a1 is word aligned?
      "beqz      $a3, $ua_chk16w                   \n"
      " subu     %[count], %[count], $a3           \n"
      // bytes left after initial a3 bytes
      "lwr       $v1, 0(%[src])                    \n"
      "lwl       $v1, 3(%[src])                    \n"
      "addu      %[src], %[src], $a3               \n"  // a3 may be 1, 2 or 3
      "swr       $v1, 0(%[dst])                    \n"
      "addu      %[dst], %[dst], $a3               \n"
      // below the dst will be word aligned (NOTE1)
      "$ua_chk16w:                                 \n"
      "andi      $t8, %[count], 0x3f               \n"  // whole 64-B chunks?
      // t8 is the byte count after 64-byte chunks
      "beq       %[count], $t8, ua_chk8w           \n"
      // if a2==t8, no 64-byte chunks
      // There will be at most 1 32-byte chunk after it
      "subu      $a3, %[count], $t8                \n"  // the reminder
      // Here a3 counts bytes in 16w chunks
      "addu      $a3, %[dst], $a3                  \n"
      // Now a3 is the final dst after 64-byte chunks
      "addu      $t0, %[dst], %[count]             \n"  // t0 "past the end"
      "subu      $t9, $t0, 160                     \n"
      // t9 is the "last safe pref 30,128(a1)" address
      "pref      0, 0(%[src])                      \n"  // first line of src
      "pref      0, 32(%[src])                     \n"  // second line  addr 32
      "pref      0, 64(%[src])                     \n"
      "pref      30, 32(%[dst])                    \n"
      // safe, as we have at least 64 bytes ahead
      // In case the a1 > t9 don't use "pref 30" at all
      "sltu      $v1, $t9, %[dst]                  \n"
      "bgtz      $v1, $ua_loop16w                  \n"
      // skip "pref 30,64(a1)" for too short arrays
      " nop                                        \n"
      // otherwise, start with using pref30
      "pref      30, 64(%[dst])                    \n"
      "$ua_loop16w:                                \n"
      "pref      0, 96(%[src])                     \n"
      "lwr       $t0, 0(%[src])                    \n"
      "lwl       $t0, 3(%[src])                    \n"
      "lwr       $t1, 4(%[src])                    \n"
      "bgtz      $v1, $ua_skip_pref30_96           \n"
      " lwl      $t1, 7(%[src])                    \n"
      "pref      30, 96(%[dst])                    \n"
      // continue setting up the dest, addr 96
      "$ua_skip_pref30_96:                         \n"
      "lwr       $t2, 8(%[src])                    \n"
      "lwl       $t2, 11(%[src])                   \n"
      "lwr       $t3, 12(%[src])                   \n"
      "lwl       $t3, 15(%[src])                   \n"
      "lwr       $t4, 16(%[src])                   \n"
      "lwl       $t4, 19(%[src])                   \n"
      "lwr       $t5, 20(%[src])                   \n"
      "lwl       $t5, 23(%[src])                   \n"
      "lwr       $t6, 24(%[src])                   \n"
      "lwl       $t6, 27(%[src])                   \n"
      "lwr       $t7, 28(%[src])                   \n"
      "lwl       $t7, 31(%[src])                   \n"
      "pref      0, 128(%[src])                    \n"
      // bring the next lines of src, addr 128
      "sw        $t0, 0(%[dst])                    \n"
      "sw        $t1, 4(%[dst])                    \n"
      "sw        $t2, 8(%[dst])                    \n"
      "sw        $t3, 12(%[dst])                   \n"
      "sw        $t4, 16(%[dst])                   \n"
      "sw        $t5, 20(%[dst])                   \n"
      "sw        $t6, 24(%[dst])                   \n"
      "sw        $t7, 28(%[dst])                   \n"
      "lwr       $t0, 32(%[src])                   \n"
      "lwl       $t0, 35(%[src])                   \n"
      "lwr       $t1, 36(%[src])                   \n"
      "bgtz      $v1, ua_skip_pref30_128           \n"
      " lwl      $t1, 39(%[src])                   \n"
      "pref      30, 128(%[dst])                   \n"
      // continue setting up the dest, addr 128
      "ua_skip_pref30_128:                         \n"

      "lwr       $t2, 40(%[src])                   \n"
      "lwl       $t2, 43(%[src])                   \n"
      "lwr       $t3, 44(%[src])                   \n"
      "lwl       $t3, 47(%[src])                   \n"
      "lwr       $t4, 48(%[src])                   \n"
      "lwl       $t4, 51(%[src])                   \n"
      "lwr       $t5, 52(%[src])                   \n"
      "lwl       $t5, 55(%[src])                   \n"
      "lwr       $t6, 56(%[src])                   \n"
      "lwl       $t6, 59(%[src])                   \n"
      "lwr       $t7, 60(%[src])                   \n"
      "lwl       $t7, 63(%[src])                   \n"
      "pref      0, 160(%[src])                    \n"
      // bring the next lines of src, addr 160
      "sw        $t0, 32(%[dst])                   \n"
      "sw        $t1, 36(%[dst])                   \n"
      "sw        $t2, 40(%[dst])                   \n"
      "sw        $t3, 44(%[dst])                   \n"
      "sw        $t4, 48(%[dst])                   \n"
      "sw        $t5, 52(%[dst])                   \n"
      "sw        $t6, 56(%[dst])                   \n"
      "sw        $t7, 60(%[dst])                   \n"

      "addiu     %[dst],%[dst],64                  \n"  // adding 64 to dest
      "sltu      $v1,$t9,%[dst]                    \n"
      "bne       %[dst],$a3,$ua_loop16w            \n"
      " addiu    %[src],%[src],64                  \n"  // adding 64 to src
      "move      %[count],$t8                      \n"

      // Here we have src and dest word-aligned but less than 64-bytes to go

      "ua_chk8w:                                   \n"
      "pref      0, 0x0(%[src])                    \n"
      "andi      $t8, %[count], 0x1f               \n"  // 32-byte chunk?
      // the t8 is the reminder count
      "beq       %[count], $t8, $ua_chk1w          \n"
      // when count==t8, no 32-byte chunk

      "lwr       $t0, 0(%[src])                    \n"
      "lwl       $t0, 3(%[src])                    \n"
      "lwr       $t1, 4(%[src])                    \n"
      "lwl       $t1, 7(%[src])                    \n"
      "lwr       $t2, 8(%[src])                    \n"
      "lwl       $t2, 11(%[src])                   \n"
      "lwr       $t3, 12(%[src])                   \n"
      "lwl       $t3, 15(%[src])                   \n"
      "lwr       $t4, 16(%[src])                   \n"
      "lwl       $t4, 19(%[src])                   \n"
      "lwr       $t5, 20(%[src])                   \n"
      "lwl       $t5, 23(%[src])                   \n"
      "lwr       $t6, 24(%[src])                   \n"
      "lwl       $t6, 27(%[src])                   \n"
      "lwr       $t7, 28(%[src])                   \n"
      "lwl       $t7, 31(%[src])                   \n"
      "addiu     %[src], %[src], 32                \n"

      "sw        $t0, 0(%[dst])                    \n"
      "sw        $t1, 4(%[dst])                    \n"
      "sw        $t2, 8(%[dst])                    \n"
      "sw        $t3, 12(%[dst])                   \n"
      "sw        $t4, 16(%[dst])                   \n"
      "sw        $t5, 20(%[dst])                   \n"
      "sw        $t6, 24(%[dst])                   \n"
      "sw        $t7, 28(%[dst])                   \n"
      "addiu     %[dst], %[dst], 32                \n"

      "$ua_chk1w:                                  \n"
      "andi      %[count], $t8, 0x3                \n"
      // now count is the reminder past 1w chunks
      "beq       %[count], $t8, ua_smallCopy       \n"
      "subu      $a3, $t8, %[count]                \n"
      // a3 is count of bytes in 1w chunks
      "addu      $a3, %[dst], $a3                  \n"
      // now a3 is the dst address past the 1w chunks

      // copying in words (4-byte chunks)
      "$ua_wordCopy_loop:                          \n"
      "lwr       $v1, 0(%[src])                    \n"
      "lwl       $v1, 3(%[src])                    \n"
      "addiu     %[src], %[src], 4                 \n"
      "addiu     %[dst], %[dst], 4                 \n"
      // note: dst=a1 is word aligned here, see NOTE1
      "bne       %[dst], $a3, $ua_wordCopy_loop    \n"
      " sw       $v1,-4(%[dst])                    \n"

      // Now less than 4 bytes (value in count) left to copy
      "ua_smallCopy:                               \n"
      "beqz      %[count], leave                   \n"
      " addu     $a3, %[dst], %[count]             \n"  // a3 = last dst address
      "$ua_smallCopy_loop:                         \n"
      "lb        $v1, 0(%[src])                    \n"
      "addiu     %[src], %[src], 1                 \n"
      "addiu     %[dst], %[dst], 1                 \n"
      "bne       %[dst],$a3,$ua_smallCopy_loop     \n"
      " sb       $v1, -1(%[dst])                   \n"

      "j         $ra                               \n"
      " nop                                        \n"
      ".set      at                                \n"
      ".set      reorder                           \n"
      : [dst] "+r"(dst), [src] "+r"(src)
      : [count] "r"(count)
      : "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9", "a3", "v1",
        "at");
}
#endif  // HAS_COPYROW_MIPS

// DSPR2 functions
#if !defined(LIBYUV_DISABLE_DSPR2) && defined(__mips_dsp) &&   \
    (__mips_dsp_rev >= 2) && (_MIPS_SIM == _MIPS_SIM_ABI32) && \
    (__mips_isa_rev < 6)

void SplitUVRow_DSPR2(const uint8* src_uv,
                      uint8* dst_u,
                      uint8* dst_v,
                      int width) {
  __asm__ __volatile__(
      ".set push                                     \n"
      ".set noreorder                                \n"
      "srl             $t4, %[width], 4              \n"  // multiplies of 16
      "blez            $t4, 2f                       \n"
      " andi           %[width], %[width], 0xf       \n"  // residual

      "1:                                            \n"
      "addiu           $t4, $t4, -1                  \n"
      "lw              $t0, 0(%[src_uv])             \n"  // V1 | U1 | V0 | U0
      "lw              $t1, 4(%[src_uv])             \n"  // V3 | U3 | V2 | U2
      "lw              $t2, 8(%[src_uv])             \n"  // V5 | U5 | V4 | U4
      "lw              $t3, 12(%[src_uv])            \n"  // V7 | U7 | V6 | U6
      "lw              $t5, 16(%[src_uv])            \n"  // V9 | U9 | V8 | U8
      "lw              $t6, 20(%[src_uv])            \n"  // V11 | U11 | V10 |
                                                          // U10
      "lw              $t7, 24(%[src_uv])            \n"  // V13 | U13 | V12 |
                                                          // U12
      "lw              $t8, 28(%[src_uv])            \n"  // V15 | U15 | V14 |
                                                          // U14
      "addiu           %[src_uv], %[src_uv], 32      \n"
      "precrq.qb.ph    $t9, $t1, $t0                 \n"  // V3 | V2 | V1 | V0
      "precr.qb.ph     $t0, $t1, $t0                 \n"  // U3 | U2 | U1 | U0
      "precrq.qb.ph    $t1, $t3, $t2                 \n"  // V7 | V6 | V5 | V4
      "precr.qb.ph     $t2, $t3, $t2                 \n"  // U7 | U6 | U5 | U4
      "precrq.qb.ph    $t3, $t6, $t5                 \n"  // V11 | V10 | V9 | V8
      "precr.qb.ph     $t5, $t6, $t5                 \n"  // U11 | U10 | U9 | U8
      "precrq.qb.ph    $t6, $t8, $t7                 \n"  // V15 | V14 | V13 |
                                                          // V12
      "precr.qb.ph     $t7, $t8, $t7                 \n"  // U15 | U14 | U13 |
                                                          // U12
      "sw              $t9, 0(%[dst_v])              \n"
      "sw              $t0, 0(%[dst_u])              \n"
      "sw              $t1, 4(%[dst_v])              \n"
      "sw              $t2, 4(%[dst_u])              \n"
      "sw              $t3, 8(%[dst_v])              \n"
      "sw              $t5, 8(%[dst_u])              \n"
      "sw              $t6, 12(%[dst_v])             \n"
      "sw              $t7, 12(%[dst_u])             \n"
      "addiu           %[dst_v], %[dst_v], 16        \n"
      "bgtz            $t4, 1b                       \n"
      " addiu          %[dst_u], %[dst_u], 16        \n"

      "beqz            %[width], 3f                  \n"
      " nop                                          \n"

      "2:                                              \n"
      "lbu             $t0, 0(%[src_uv])             \n"
      "lbu             $t1, 1(%[src_uv])             \n"
      "addiu           %[src_uv], %[src_uv], 2       \n"
      "addiu           %[width], %[width], -1        \n"
      "sb              $t0, 0(%[dst_u])              \n"
      "sb              $t1, 0(%[dst_v])              \n"
      "addiu           %[dst_u], %[dst_u], 1         \n"
      "bgtz            %[width], 2b                  \n"
      " addiu          %[dst_v], %[dst_v], 1         \n"

      "3:                                              \n"
      ".set pop                                      \n"
      : [src_uv] "+r"(src_uv), [width] "+r"(width), [dst_u] "+r"(dst_u),
        [dst_v] "+r"(dst_v)
      :
      : "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9");
}

void MirrorRow_DSPR2(const uint8* src, uint8* dst, int width) {
  __asm__ __volatile__(
      ".set push                             \n"
      ".set noreorder                        \n"

      "srl       $t4, %[width], 4            \n"  // multiplies of 16
      "andi      $t5, %[width], 0xf          \n"
      "blez      $t4, 2f                     \n"
      " addu     %[src], %[src], %[width]    \n"  // src += width

      "1:                                     \n"
      "lw        $t0, -16(%[src])            \n"  // |3|2|1|0|
      "lw        $t1, -12(%[src])            \n"  // |7|6|5|4|
      "lw        $t2, -8(%[src])             \n"  // |11|10|9|8|
      "lw        $t3, -4(%[src])             \n"  // |15|14|13|12|
      "wsbh      $t0, $t0                    \n"  // |2|3|0|1|
      "wsbh      $t1, $t1                    \n"  // |6|7|4|5|
      "wsbh      $t2, $t2                    \n"  // |10|11|8|9|
      "wsbh      $t3, $t3                    \n"  // |14|15|12|13|
      "rotr      $t0, $t0, 16                \n"  // |0|1|2|3|
      "rotr      $t1, $t1, 16                \n"  // |4|5|6|7|
      "rotr      $t2, $t2, 16                \n"  // |8|9|10|11|
      "rotr      $t3, $t3, 16                \n"  // |12|13|14|15|
      "addiu     %[src], %[src], -16         \n"
      "addiu     $t4, $t4, -1                \n"
      "sw        $t3, 0(%[dst])              \n"  // |15|14|13|12|
      "sw        $t2, 4(%[dst])              \n"  // |11|10|9|8|
      "sw        $t1, 8(%[dst])              \n"  // |7|6|5|4|
      "sw        $t0, 12(%[dst])             \n"  // |3|2|1|0|
      "bgtz      $t4, 1b                     \n"
      " addiu    %[dst], %[dst], 16          \n"
      "beqz      $t5, 3f                     \n"
      " nop                                  \n"

      "2:                                     \n"
      "lbu       $t0, -1(%[src])             \n"
      "addiu     $t5, $t5, -1                \n"
      "addiu     %[src], %[src], -1          \n"
      "sb        $t0, 0(%[dst])              \n"
      "bgez      $t5, 2b                     \n"
      " addiu    %[dst], %[dst], 1           \n"

      "3:                                     \n"
      ".set pop                              \n"
      : [src] "+r"(src), [dst] "+r"(dst)
      : [width] "r"(width)
      : "t0", "t1", "t2", "t3", "t4", "t5");
}

void MirrorUVRow_DSPR2(const uint8* src_uv,
                       uint8* dst_u,
                       uint8* dst_v,
                       int width) {
  int x;
  int y;
  __asm__ __volatile__(
      ".set push                                    \n"
      ".set noreorder                               \n"

      "addu            $t4, %[width], %[width]      \n"
      "srl             %[x], %[width], 4            \n"
      "andi            %[y], %[width], 0xf          \n"
      "blez            %[x], 2f                     \n"
      " addu           %[src_uv], %[src_uv], $t4    \n"

      "1:                                          \n"
      "lw              $t0, -32(%[src_uv])          \n"  // |3|2|1|0|
      "lw              $t1, -28(%[src_uv])          \n"  // |7|6|5|4|
      "lw              $t2, -24(%[src_uv])          \n"  // |11|10|9|8|
      "lw              $t3, -20(%[src_uv])          \n"  // |15|14|13|12|
      "lw              $t4, -16(%[src_uv])          \n"  // |19|18|17|16|
      "lw              $t6, -12(%[src_uv])          \n"  // |23|22|21|20|
      "lw              $t7, -8(%[src_uv])           \n"  // |27|26|25|24|
      "lw              $t8, -4(%[src_uv])           \n"  // |31|30|29|28|

      "rotr            $t0, $t0, 16                 \n"  // |1|0|3|2|
      "rotr            $t1, $t1, 16                 \n"  // |5|4|7|6|
      "rotr            $t2, $t2, 16                 \n"  // |9|8|11|10|
      "rotr            $t3, $t3, 16                 \n"  // |13|12|15|14|
      "rotr            $t4, $t4, 16                 \n"  // |17|16|19|18|
      "rotr            $t6, $t6, 16                 \n"  // |21|20|23|22|
      "rotr            $t7, $t7, 16                 \n"  // |25|24|27|26|
      "rotr            $t8, $t8, 16                 \n"  // |29|28|31|30|
      "precr.qb.ph     $t9, $t0, $t1                \n"  // |0|2|4|6|
      "precrq.qb.ph    $t5, $t0, $t1                \n"  // |1|3|5|7|
      "precr.qb.ph     $t0, $t2, $t3                \n"  // |8|10|12|14|
      "precrq.qb.ph    $t1, $t2, $t3                \n"  // |9|11|13|15|
      "precr.qb.ph     $t2, $t4, $t6                \n"  // |16|18|20|22|
      "precrq.qb.ph    $t3, $t4, $t6                \n"  // |17|19|21|23|
      "precr.qb.ph     $t4, $t7, $t8                \n"  // |24|26|28|30|
      "precrq.qb.ph    $t6, $t7, $t8                \n"  // |25|27|29|31|
      "addiu           %[src_uv], %[src_uv], -32    \n"
      "addiu           %[x], %[x], -1               \n"
      "swr             $t4, 0(%[dst_u])             \n"
      "swl             $t4, 3(%[dst_u])             \n"  // |30|28|26|24|
      "swr             $t6, 0(%[dst_v])             \n"
      "swl             $t6, 3(%[dst_v])             \n"  // |31|29|27|25|
      "swr             $t2, 4(%[dst_u])             \n"
      "swl             $t2, 7(%[dst_u])             \n"  // |22|20|18|16|
      "swr             $t3, 4(%[dst_v])             \n"
      "swl             $t3, 7(%[dst_v])             \n"  // |23|21|19|17|
      "swr             $t0, 8(%[dst_u])             \n"
      "swl             $t0, 11(%[dst_u])            \n"  // |14|12|10|8|
      "swr             $t1, 8(%[dst_v])             \n"
      "swl             $t1, 11(%[dst_v])            \n"  // |15|13|11|9|
      "swr             $t9, 12(%[dst_u])            \n"
      "swl             $t9, 15(%[dst_u])            \n"  // |6|4|2|0|
      "swr             $t5, 12(%[dst_v])            \n"
      "swl             $t5, 15(%[dst_v])            \n"  // |7|5|3|1|
      "addiu           %[dst_v], %[dst_v], 16       \n"
      "bgtz            %[x], 1b                     \n"
      " addiu          %[dst_u], %[dst_u], 16       \n"
      "beqz            %[y], 3f                     \n"
      " nop                                         \n"
      "b               2f                           \n"
      " nop                                         \n"

      "2:                                            \n"
      "lbu             $t0, -2(%[src_uv])           \n"
      "lbu             $t1, -1(%[src_uv])           \n"
      "addiu           %[src_uv], %[src_uv], -2     \n"
      "addiu           %[y], %[y], -1               \n"
      "sb              $t0, 0(%[dst_u])             \n"
      "sb              $t1, 0(%[dst_v])             \n"
      "addiu           %[dst_u], %[dst_u], 1        \n"
      "bgtz            %[y], 2b                     \n"
      " addiu          %[dst_v], %[dst_v], 1        \n"

      "3:                                            \n"
      ".set pop                                     \n"
      : [src_uv] "+r"(src_uv), [dst_u] "+r"(dst_u), [dst_v] "+r"(dst_v),
        [x] "=&r"(x), [y] "=&r"(y)
      : [width] "r"(width)
      : "t0", "t1", "t2", "t3", "t4", "t5", "t7", "t8", "t9");
}

void I422ToARGBRow_DSPR2(const uint8* src_y,
                         const uint8* src_u,
                         const uint8* src_v,
                         uint8* rgb_buf,
                         const struct YuvConstants* yuvconstants,
                         int width) {
  int x;
  uint32 tmp_ub = yuvconstants->kUVToB[0];
  uint32 tmp_ug = yuvconstants->kUVToG[0];
  uint32 tmp_vg = yuvconstants->kUVToG[1];
  uint32 tmp_vr = yuvconstants->kUVToR[1];
  uint32 tmp_bb = yuvconstants->kUVBiasB[0];
  uint32 tmp_bg = yuvconstants->kUVBiasG[0];
  uint32 tmp_br = yuvconstants->kUVBiasR[0];
  uint32 yg = yuvconstants->kYToRgb[0];
  uint32 tmp_yg;
  uint32 tmp_mask = 0x7fff7fff;
  tmp_bb = ((uint)(tmp_bb & 0xffff) << 16) | (tmp_bb & 0xffff);
  tmp_bg = ((uint)(tmp_bg & 0xffff) << 16) | (tmp_bg & 0xffff);
  tmp_br = ((uint)(tmp_br & 0xffff) << 16) | (tmp_br & 0xffff);
  tmp_yg = ((uint)(yg & 0xffff) << 16) | (yg & 0xffff);
  tmp_ub = ~(((uint)(tmp_ub & 0xffff) << 16) | (tmp_ub & 0xffff)) + 0x00010001;
  tmp_ug = ((uint)(tmp_ug & 0xffff) << 16) | (tmp_ug & 0xffff);
  tmp_vg = ((uint)(tmp_vg & 0xffff) << 16) | (tmp_vg & 0xffff);
  tmp_vr = ~(((uint)(tmp_vr & 0xffff) << 16) | (tmp_vr & 0xffff)) + 0x00010001;
  yg = yg * 0x0101;

  for (x = 0; x < width - 1; x += 2) {
    uint32 tmp_t1, tmp_t2, tmp_t3, tmp_t4, tmp_t5;
    uint32 tmp_t6, tmp_t7, tmp_t8, tmp_t9;
    __asm__ __volatile__(
        ".set push                                             \n"
        ".set noreorder                                        \n"
        "lbu              %[tmp_t7], 0(%[src_y])               \n"
        "lbu              %[tmp_t1], 1(%[src_y])               \n"
        "mul              %[tmp_t7], %[tmp_t7],     %[yg]      \n"
        "mul              %[tmp_t1], %[tmp_t1],     %[yg]      \n"
        "lbu              %[tmp_t2], 0(%[src_u])               \n"
        "lbu              %[tmp_t3], 0(%[src_v])               \n"
        "replv.ph         %[tmp_t2], %[tmp_t2]                 \n"
        "replv.ph         %[tmp_t3], %[tmp_t3]                 \n"
        "mul.ph           %[tmp_t4], %[tmp_t2],     %[tmp_ub]  \n"
        "mul.ph           %[tmp_t5], %[tmp_t2],     %[tmp_ug]  \n"
        "mul.ph           %[tmp_t6], %[tmp_t3],     %[tmp_vr]  \n"
        "mul.ph           %[tmp_t3], %[tmp_t3],     %[tmp_vg]  \n"
        "srl              %[tmp_t7], %[tmp_t7],     16         \n"
        "ins              %[tmp_t1], %[tmp_t7],     0,      16 \n"
        "addq_s.ph        %[tmp_t7], %[tmp_t1],     %[tmp_bb]  \n"
        "addq_s.ph        %[tmp_t8], %[tmp_t1],     %[tmp_bg]  \n"
        "addq_s.ph        %[tmp_t9], %[tmp_t1],     %[tmp_br]  \n"
        "addq_s.ph        %[tmp_t5], %[tmp_t5],     %[tmp_t3]  \n"
        "addq_s.ph        %[tmp_t7], %[tmp_t7],     %[tmp_t4]  \n"
        "subq_s.ph        %[tmp_t8], %[tmp_t8],     %[tmp_t5]  \n"
        "addq_s.ph        %[tmp_t9], %[tmp_t9],     %[tmp_t6]  \n"
        "shra.ph          %[tmp_t7], %[tmp_t7],     6          \n"
        "shra.ph          %[tmp_t8], %[tmp_t8],     6          \n"
        "shra.ph          %[tmp_t9], %[tmp_t9],     6          \n"
        "shll_s.ph        %[tmp_t7], %[tmp_t7],     7          \n"
        "shll_s.ph        %[tmp_t8], %[tmp_t8],     7          \n"
        "shll_s.ph        %[tmp_t9], %[tmp_t9],     7          \n"
        "precrqu_s.qb.ph  %[tmp_t8], %[tmp_mask],   %[tmp_t8]  \n"
        "precrqu_s.qb.ph  %[tmp_t7], %[tmp_t9],     %[tmp_t7]  \n"
        "precrq.ph.w      %[tmp_t9], %[tmp_t8],     %[tmp_t7]  \n"
        "ins              %[tmp_t7], %[tmp_t8],     16,     16 \n"
        "precr.qb.ph      %[tmp_t8], %[tmp_t9],     %[tmp_t7]  \n"
        "precrq.qb.ph     %[tmp_t7], %[tmp_t9],     %[tmp_t7]  \n"
        "sw               %[tmp_t8], 0(%[rgb_buf])             \n"
        "sw               %[tmp_t7], 4(%[rgb_buf])             \n"
        ".set pop                                              \n"
        : [tmp_t1] "=&r"(tmp_t1), [tmp_t2] "=&r"(tmp_t2),
          [tmp_t3] "=&r"(tmp_t3), [tmp_t4] "=&r"(tmp_t4),
          [tmp_t5] "=&r"(tmp_t5), [tmp_t6] "=&r"(tmp_t6),
          [tmp_t7] "=&r"(tmp_t7), [tmp_t8] "=&r"(tmp_t8), [tmp_t9] "=&r"(tmp_t9)
        : [src_y] "r"(src_y), [src_u] "r"(src_u), [src_v] "r"(src_v),
          [tmp_ub] "r"(tmp_ub), [tmp_ug] "r"(tmp_ug), [yg] "r"(yg),
          [tmp_vg] "r"(tmp_vg), [tmp_vr] "r"(tmp_vr), [tmp_bb] "r"(tmp_bb),
          [tmp_bg] "r"(tmp_bg), [tmp_br] "r"(tmp_br), [tmp_yg] "r"(tmp_yg),
          [rgb_buf] "r"(rgb_buf), [tmp_mask] "r"(tmp_mask));
    src_y += 2;
    src_u += 1;
    src_v += 1;
    rgb_buf += 8;  // Advance 4 pixels.
  }
}

// Bilinear filter 8x2 -> 8x1
void InterpolateRow_DSPR2(uint8* dst_ptr,
                          const uint8* src_ptr,
                          ptrdiff_t src_stride,
                          int dst_width,
                          int source_y_fraction) {
  int y0_fraction = 256 - source_y_fraction;
  const uint8* src_ptr1 = src_ptr + src_stride;

  __asm__ __volatile__(
      ".set push                                           \n"
      ".set noreorder                                      \n"

      "replv.ph          $t0, %[y0_fraction]               \n"
      "replv.ph          $t1, %[source_y_fraction]         \n"

      "1:                                                    \n"
      "lw                $t2, 0(%[src_ptr])                \n"
      "lw                $t3, 0(%[src_ptr1])               \n"
      "lw                $t4, 4(%[src_ptr])                \n"
      "lw                $t5, 4(%[src_ptr1])               \n"
      "muleu_s.ph.qbl    $t6, $t2, $t0                     \n"
      "muleu_s.ph.qbr    $t7, $t2, $t0                     \n"
      "muleu_s.ph.qbl    $t8, $t3, $t1                     \n"
      "muleu_s.ph.qbr    $t9, $t3, $t1                     \n"
      "muleu_s.ph.qbl    $t2, $t4, $t0                     \n"
      "muleu_s.ph.qbr    $t3, $t4, $t0                     \n"
      "muleu_s.ph.qbl    $t4, $t5, $t1                     \n"
      "muleu_s.ph.qbr    $t5, $t5, $t1                     \n"
      "addq.ph           $t6, $t6, $t8                     \n"
      "addq.ph           $t7, $t7, $t9                     \n"
      "addq.ph           $t2, $t2, $t4                     \n"
      "addq.ph           $t3, $t3, $t5                     \n"
      "shra_r.ph         $t6, $t6, 8                       \n"
      "shra_r.ph         $t7, $t7, 8                       \n"
      "shra_r.ph         $t2, $t2, 8                       \n"
      "shra_r.ph         $t3, $t3, 8                       \n"
      "precr.qb.ph       $t6, $t6, $t7                     \n"
      "precr.qb.ph       $t2, $t2, $t3                     \n"
      "addiu             %[src_ptr], %[src_ptr], 8         \n"
      "addiu             %[src_ptr1], %[src_ptr1], 8       \n"
      "addiu             %[dst_width], %[dst_width], -8    \n"
      "sw                $t6, 0(%[dst_ptr])                \n"
      "sw                $t2, 4(%[dst_ptr])                \n"
      "bgtz              %[dst_width], 1b                  \n"
      " addiu            %[dst_ptr], %[dst_ptr], 8         \n"

      ".set pop                                            \n"
      : [dst_ptr] "+r"(dst_ptr), [src_ptr1] "+r"(src_ptr1),
        [src_ptr] "+r"(src_ptr), [dst_width] "+r"(dst_width)
      : [source_y_fraction] "r"(source_y_fraction),
        [y0_fraction] "r"(y0_fraction), [src_stride] "r"(src_stride)
      : "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9");
}
#include <stdio.h>
void RGB24ToARGBRow_DSPR2(const uint8* src_rgb24, uint8* dst_argb, int width) {
  int x;
  uint32 tmp_mask = 0xff;
  uint32 tmp_t1;
  for (x = 0; x < (width - 1); ++x) {
    __asm__ __volatile__(
        ".set push                                                  \n"
        ".set noreorder                                             \n"
        "ulw             %[tmp_t1],    0(%[src_rgb24])              \n"
        "addiu           %[dst_argb],  %[dst_argb],     4           \n"
        "addiu           %[src_rgb24], %[src_rgb24],    3           \n"
        "ins             %[tmp_t1],    %[tmp_mask],     24,    8    \n"
        "sw              %[tmp_t1],    -4(%[dst_argb])              \n"
        ".set pop                                                   \n"
        : [src_rgb24] "+r"(src_rgb24), [dst_argb] "+r"(dst_argb),
          [tmp_t1] "=&r"(tmp_t1)
        : [tmp_mask] "r"(tmp_mask)
        : "memory");
  }
  uint8 b = src_rgb24[0];
  uint8 g = src_rgb24[1];
  uint8 r = src_rgb24[2];
  dst_argb[0] = b;
  dst_argb[1] = g;
  dst_argb[2] = r;
  dst_argb[3] = 255u;
}

void RAWToARGBRow_DSPR2(const uint8* src_raw, uint8* dst_argb, int width) {
  int x;
  uint32 tmp_mask = 0xff;
  uint32 tmp_t1, tmp_t2;
  for (x = 0; x < (width - 1); ++x) {
    __asm__ __volatile__(
        ".set push                                               \n"
        ".set noreorder                                          \n"
        "ulw               %[tmp_t1],   0(%[src_raw])            \n"
        "addiu             %[dst_argb], %[dst_argb],      4      \n"
        "addiu             %[src_raw],  %[src_raw],       3      \n"
        "srl               %[tmp_t2],   %[tmp_t1],        16     \n"
        "ins               %[tmp_t1],   %[tmp_mask],      24, 8  \n"
        "ins               %[tmp_t1],   %[tmp_t1],        16, 8  \n"
        "ins               %[tmp_t1],   %[tmp_t2],        0,  8  \n"
        "sw                %[tmp_t1],   -4(%[dst_argb])          \n"
        ".set pop                                                \n"
        : [src_raw] "+r"(src_raw), [dst_argb] "+r"(dst_argb),
          [tmp_t1] "=&r"(tmp_t1), [tmp_t2] "=&r"(tmp_t2)
        : [tmp_mask] "r"(tmp_mask)
        : "memory");
  }
  uint8 r = src_raw[0];
  uint8 g = src_raw[1];
  uint8 b = src_raw[2];
  dst_argb[0] = b;
  dst_argb[1] = g;
  dst_argb[2] = r;
  dst_argb[3] = 255u;
}

void RGB565ToARGBRow_DSPR2(const uint8* src_rgb565,
                           uint8* dst_argb,
                           int width) {
  int x;
  uint32 tmp_mask = 0xff;
  uint32 tmp_t1, tmp_t2, tmp_t3;
  for (x = 0; x < width; ++x) {
    __asm__ __volatile__(
        ".set push                                                   \n"
        ".set noreorder                                              \n"
        "lhu               %[tmp_t1],     0(%[src_rgb565])           \n"
        "addiu             %[dst_argb],   %[dst_argb],      4        \n"
        "addiu             %[src_rgb565], %[src_rgb565],    2        \n"
        "sll               %[tmp_t2],     %[tmp_t1],        8        \n"
        "ins               %[tmp_t2],     %[tmp_mask],      24,8     \n"
        "ins               %[tmp_t2],     %[tmp_t1],        3, 16    \n"
        "ins               %[tmp_t2],     %[tmp_t1],        5, 11    \n"
        "srl               %[tmp_t3],     %[tmp_t1],        9        \n"
        "ins               %[tmp_t2],     %[tmp_t3],        8, 2     \n"
        "ins               %[tmp_t2],     %[tmp_t1],        3, 5     \n"
        "srl               %[tmp_t3],     %[tmp_t1],        2        \n"
        "ins               %[tmp_t2],     %[tmp_t3],        0, 3     \n"
        "sw                %[tmp_t2],     -4(%[dst_argb])            \n"
        ".set pop                                                    \n"
        : [tmp_t1] "=&r"(tmp_t1), [tmp_t2] "=&r"(tmp_t2),
          [tmp_t3] "=&r"(tmp_t3), [src_rgb565] "+r"(src_rgb565),
          [dst_argb] "+r"(dst_argb)
        : [tmp_mask] "r"(tmp_mask));
  }
}

void ARGB1555ToARGBRow_DSPR2(const uint8* src_argb1555,
                             uint8* dst_argb,
                             int width) {
  int x;
  uint32 tmp_t1, tmp_t2, tmp_t3;
  for (x = 0; x < width; ++x) {
    __asm__ __volatile__(
        ".set push                                                   \n"
        ".set noreorder                                              \n"
        "lh                %[tmp_t1],       0(%[src_argb1555])       \n"
        "addiu             %[dst_argb],     %[dst_argb],      4      \n"
        "addiu             %[src_argb1555], %[src_argb1555],  2      \n"
        "sll               %[tmp_t2],       %[tmp_t1],        9      \n"
        "ins               %[tmp_t2],       %[tmp_t1],        4, 15  \n"
        "ins               %[tmp_t2],       %[tmp_t1],        6, 10  \n"
        "srl               %[tmp_t3],       %[tmp_t1],        7      \n"
        "ins               %[tmp_t2],       %[tmp_t3],        8, 3   \n"
        "ins               %[tmp_t2],       %[tmp_t1],        3, 5   \n"
        "srl               %[tmp_t3],       %[tmp_t1],        2      \n"
        "ins               %[tmp_t2],       %[tmp_t3],        0, 3   \n"
        "sw                %[tmp_t2],       -4(%[dst_argb])          \n"
        ".set pop                                                    \n"
        : [tmp_t1] "=&r"(tmp_t1), [tmp_t2] "=&r"(tmp_t2),
          [tmp_t3] "=&r"(tmp_t3), [src_argb1555] "+r"(src_argb1555),
          [dst_argb] "+r"(dst_argb)
        :);
  }
}

void ARGB4444ToARGBRow_DSPR2(const uint8* src_argb4444,
                             uint8* dst_argb,
                             int width) {
  int x;
  uint32 tmp_t1;
  for (x = 0; x < width; ++x) {
    __asm__ __volatile__(
        ".set push                                                    \n"
        ".set noreorder                                               \n"
        "lh                %[tmp_t1],       0(%[src_argb4444])        \n"
        "addiu             %[dst_argb],     %[dst_argb],       4      \n"
        "addiu             %[src_argb4444], %[src_argb4444],   2      \n"
        "ins               %[tmp_t1],       %[tmp_t1],         16, 16 \n"
        "ins               %[tmp_t1],       %[tmp_t1],         12, 16 \n"
        "ins               %[tmp_t1],       %[tmp_t1],         8,  12 \n"
        "ins               %[tmp_t1],       %[tmp_t1],         4,  8  \n"
        "sw                %[tmp_t1],       -4(%[dst_argb])           \n"
        ".set pop                                                     \n"
        : [src_argb4444] "+r"(src_argb4444), [dst_argb] "+r"(dst_argb),
          [tmp_t1] "=&r"(tmp_t1));
  }
}

void I444ToARGBRow_DSPR2(const uint8* y_buf,
                         const uint8* u_buf,
                         const uint8* v_buf,
                         uint8* rgb_buf,
                         const struct YuvConstants* yuvconstants,
                         int width) {
  int x;
  uint32 tmp_ub = yuvconstants->kUVToB[0];
  uint32 tmp_ug = yuvconstants->kUVToG[0];
  uint32 tmp_vg = yuvconstants->kUVToG[1];
  uint32 tmp_vr = yuvconstants->kUVToR[1];
  uint32 tmp_bb = yuvconstants->kUVBiasB[0];
  uint32 tmp_bg = yuvconstants->kUVBiasG[0];
  uint32 tmp_br = yuvconstants->kUVBiasR[0];
  uint32 yg = yuvconstants->kYToRgb[0];
  uint32 tmp_mask = 0x7fff7fff;
  uint32 tmp_yg;

  tmp_bb = ((uint)(tmp_bb & 0xffff) << 16) | (tmp_bb & 0xffff);
  tmp_bg = ((uint)(tmp_bg & 0xffff) << 16) | (tmp_bg & 0xffff);
  tmp_br = ((uint)(tmp_br & 0xffff) << 16) | (tmp_br & 0xffff);
  tmp_yg = ((uint)(yg & 0xffff) << 16) | (yg & 0xffff);
  tmp_ub = ~(((uint)(tmp_ub & 0xffff) << 16) | (tmp_ub & 0xffff)) + 0x00010001;
  tmp_ug = ((uint)(tmp_ug & 0xffff) << 16) | (tmp_ug & 0xffff);
  tmp_vg = ((uint)(tmp_vg & 0xffff) << 16) | (tmp_vg & 0xffff);
  tmp_vr = ~(((uint)(tmp_vr & 0xffff) << 16) | (tmp_vr & 0xffff)) + 0x00010001;
  yg = yg * 0x0101;

  for (x = 0; x < width - 1; x += 2) {
    uint32 tmp_t1, tmp_t2, tmp_t3, tmp_t4, tmp_t5;
    uint32 tmp_t6, tmp_t7, tmp_t8, tmp_t9;
    __asm__ __volatile__(
        ".set push                                              \n"
        ".set noreorder                                         \n"
        "lbu              %[tmp_t7], 0(%[y_buf])               \n"
        "lbu              %[tmp_t1], 1(%[y_buf])               \n"
        "mul              %[tmp_t7], %[tmp_t7],     %[yg]      \n"
        "mul              %[tmp_t1], %[tmp_t1],     %[yg]      \n"
        "lh               %[tmp_t2], 0(%[u_buf])               \n"
        "lh               %[tmp_t3], 0(%[v_buf])               \n"
        "preceu.ph.qbr    %[tmp_t2], %[tmp_t2]                 \n"
        "preceu.ph.qbr    %[tmp_t3], %[tmp_t3]                 \n"
        "mul.ph           %[tmp_t4], %[tmp_t2],     %[tmp_ub]  \n"
        "mul.ph           %[tmp_t5], %[tmp_t2],     %[tmp_ug]  \n"
        "mul.ph           %[tmp_t6], %[tmp_t3],     %[tmp_vr]  \n"
        "mul.ph           %[tmp_t3], %[tmp_t3],     %[tmp_vg]  \n"
        "srl              %[tmp_t7], %[tmp_t7],     16         \n"
        "ins              %[tmp_t1], %[tmp_t7],     0,      16 \n"
        "addq_s.ph        %[tmp_t7], %[tmp_t1],     %[tmp_bb]  \n"
        "addq_s.ph        %[tmp_t8], %[tmp_t1],     %[tmp_bg]  \n"
        "addq_s.ph        %[tmp_t9], %[tmp_t1],     %[tmp_br]  \n"
        "addq_s.ph        %[tmp_t5], %[tmp_t5],     %[tmp_t3]  \n"
        "addq_s.ph        %[tmp_t7], %[tmp_t7],     %[tmp_t4]  \n"
        "subq_s.ph        %[tmp_t8], %[tmp_t8],     %[tmp_t5]  \n"
        "addq_s.ph        %[tmp_t9], %[tmp_t9],     %[tmp_t6]  \n"
        "shra.ph          %[tmp_t7], %[tmp_t7],     6          \n"
        "shra.ph          %[tmp_t8], %[tmp_t8],     6          \n"
        "shra.ph          %[tmp_t9], %[tmp_t9],     6          \n"
        "shll_s.ph        %[tmp_t7], %[tmp_t7],     7          \n"
        "shll_s.ph        %[tmp_t8], %[tmp_t8],     7          \n"
        "shll_s.ph        %[tmp_t9], %[tmp_t9],     7          \n"
        "precrqu_s.qb.ph  %[tmp_t8], %[tmp_mask],   %[tmp_t8]  \n"
        "precrqu_s.qb.ph  %[tmp_t7], %[tmp_t9],     %[tmp_t7]  \n"
        "precrq.ph.w      %[tmp_t2], %[tmp_t8],     %[tmp_t7]  \n"
        "ins              %[tmp_t7], %[tmp_t8],     16,     16 \n"
        "precr.qb.ph      %[tmp_t8], %[tmp_t2],     %[tmp_t7]  \n"
        "precrq.qb.ph     %[tmp_t7], %[tmp_t2],     %[tmp_t7]  \n"
        "sw               %[tmp_t8], 0(%[rgb_buf])             \n"
        "sw               %[tmp_t7], 4(%[rgb_buf])             \n"
        ".set pop                                              \n"
        : [tmp_t1] "=&r"(tmp_t1), [tmp_t2] "=&r"(tmp_t2),
          [tmp_t3] "=&r"(tmp_t3), [tmp_t4] "=&r"(tmp_t4),
          [tmp_t5] "=&r"(tmp_t5), [tmp_t6] "=&r"(tmp_t6),
          [tmp_t7] "=&r"(tmp_t7), [tmp_t8] "=&r"(tmp_t8), [tmp_t9] "=&r"(tmp_t9)
        : [y_buf] "r"(y_buf), [yg] "r"(yg), [u_buf] "r"(u_buf),
          [v_buf] "r"(v_buf), [tmp_ub] "r"(tmp_ub), [tmp_ug] "r"(tmp_ug),
          [tmp_vg] "r"(tmp_vg), [tmp_vr] "r"(tmp_vr), [tmp_bb] "r"(tmp_bb),
          [tmp_bg] "r"(tmp_bg), [tmp_br] "r"(tmp_br), [tmp_yg] "r"(tmp_yg),
          [rgb_buf] "r"(rgb_buf), [tmp_mask] "r"(tmp_mask));
    y_buf += 2;
    u_buf += 2;
    v_buf += 2;
    rgb_buf += 8;  // Advance 1 pixel.
  }
}

void I422ToARGB4444Row_DSPR2(const uint8* src_y,
                             const uint8* src_u,
                             const uint8* src_v,
                             uint8* dst_argb4444,
                             const struct YuvConstants* yuvconstants,
                             int width) {
  int x;
  uint32 tmp_ub = yuvconstants->kUVToB[0];
  uint32 tmp_ug = yuvconstants->kUVToG[0];
  uint32 tmp_vg = yuvconstants->kUVToG[1];
  uint32 tmp_vr = yuvconstants->kUVToR[1];
  uint32 tmp_bb = yuvconstants->kUVBiasB[0];
  uint32 tmp_bg = yuvconstants->kUVBiasG[0];
  uint32 tmp_br = yuvconstants->kUVBiasR[0];
  uint32 yg = yuvconstants->kYToRgb[0];
  uint32 tmp_yg;
  uint32 tmp_mask = 0x7fff7fff;
  tmp_bb = ((uint)(tmp_bb & 0xffff) << 16) | (tmp_bb & 0xffff);
  tmp_bg = ((uint)(tmp_bg & 0xffff) << 16) | (tmp_bg & 0xffff);
  tmp_br = ((uint)(tmp_br & 0xffff) << 16) | (tmp_br & 0xffff);
  tmp_yg = ((uint)(yg & 0xffff) << 16) | (yg & 0xffff);
  tmp_ub = ~(((uint)(tmp_ub & 0xffff) << 16) | (tmp_ub & 0xffff)) + 0x00010001;
  tmp_ug = ((uint)(tmp_ug & 0xffff) << 16) | (tmp_ug & 0xffff);
  tmp_vg = ((uint)(tmp_vg & 0xffff) << 16) | (tmp_vg & 0xffff);
  tmp_vr = ~(((uint)(tmp_vr & 0xffff) << 16) | (tmp_vr & 0xffff)) + 0x00010001;
  yg = yg * 0x0101;

  for (x = 0; x < width - 1; x += 2) {
    uint32 tmp_t1, tmp_t2, tmp_t3, tmp_t4, tmp_t5;
    uint32 tmp_t6, tmp_t7, tmp_t8, tmp_t9;
    __asm__ __volatile__(
        ".set push                                             \n"
        ".set noreorder                                        \n"
        "lbu              %[tmp_t7], 0(%[src_y])               \n"
        "lbu              %[tmp_t1], 1(%[src_y])               \n"
        "mul              %[tmp_t7], %[tmp_t7],     %[yg]      \n"
        "mul              %[tmp_t1], %[tmp_t1],     %[yg]      \n"
        "lbu              %[tmp_t2], 0(%[src_u])               \n"
        "lbu              %[tmp_t3], 0(%[src_v])               \n"
        "replv.ph         %[tmp_t2], %[tmp_t2]                 \n"
        "replv.ph         %[tmp_t3], %[tmp_t3]                 \n"
        "mul.ph           %[tmp_t4], %[tmp_t2],     %[tmp_ub]  \n"
        "mul.ph           %[tmp_t5], %[tmp_t2],     %[tmp_ug]  \n"
        "mul.ph           %[tmp_t6], %[tmp_t3],     %[tmp_vr]  \n"
        "mul.ph           %[tmp_t3], %[tmp_t3],     %[tmp_vg]  \n"
        "srl              %[tmp_t7], %[tmp_t7],     16         \n"
        "ins              %[tmp_t1], %[tmp_t7],     0,      16 \n"
        "addq_s.ph        %[tmp_t7], %[tmp_t1],     %[tmp_bb]  \n"
        "addq_s.ph        %[tmp_t8], %[tmp_t1],     %[tmp_bg]  \n"
        "addq_s.ph        %[tmp_t9], %[tmp_t1],     %[tmp_br]  \n"
        "addq_s.ph        %[tmp_t5], %[tmp_t5],     %[tmp_t3]  \n"
        "addq_s.ph        %[tmp_t7], %[tmp_t7],     %[tmp_t4]  \n"
        "subq_s.ph        %[tmp_t8], %[tmp_t8],     %[tmp_t5]  \n"
        "addq_s.ph        %[tmp_t9], %[tmp_t9],     %[tmp_t6]  \n"
        "shra.ph          %[tmp_t7], %[tmp_t7],     6          \n"
        "shra.ph          %[tmp_t8], %[tmp_t8],     6          \n"
        "shra.ph          %[tmp_t9], %[tmp_t9],     6          \n"
        "shll_s.ph        %[tmp_t7], %[tmp_t7],     7          \n"
        "shll_s.ph        %[tmp_t8], %[tmp_t8],     7          \n"
        "shll_s.ph        %[tmp_t9], %[tmp_t9],     7          \n"
        "precrqu_s.qb.ph  %[tmp_t8], %[tmp_mask],   %[tmp_t8]  \n"
        "precrqu_s.qb.ph  %[tmp_t7], %[tmp_t9],     %[tmp_t7]  \n"
        "precrq.ph.w      %[tmp_t2], %[tmp_t8],     %[tmp_t7]  \n"
        "ins              %[tmp_t7], %[tmp_t8],     16,     16 \n"
        "precr.qb.ph      %[tmp_t8], %[tmp_t2],     %[tmp_t7]  \n"
        "precrq.qb.ph     %[tmp_t7], %[tmp_t2],     %[tmp_t7]  \n"
        "shrl.qb          %[tmp_t1], %[tmp_t8],     4          \n"
        "shrl.qb          %[tmp_t2], %[tmp_t7],     4          \n"
        "shrl.ph          %[tmp_t8], %[tmp_t1],     4          \n"
        "shrl.ph          %[tmp_t7], %[tmp_t2],     4          \n"
        "or               %[tmp_t8], %[tmp_t8],     %[tmp_t1]  \n"
        "or               %[tmp_t7], %[tmp_t7],     %[tmp_t2]  \n"
        "precr.qb.ph      %[tmp_t8], %[tmp_t7],     %[tmp_t8]  \n"
        "sw               %[tmp_t8], 0(%[dst_argb4444])        \n"
        ".set pop                                              \n"
        : [tmp_t1] "=&r"(tmp_t1), [tmp_t2] "=&r"(tmp_t2),
          [tmp_t3] "=&r"(tmp_t3), [tmp_t4] "=&r"(tmp_t4),
          [tmp_t5] "=&r"(tmp_t5), [tmp_t6] "=&r"(tmp_t6),
          [tmp_t7] "=&r"(tmp_t7), [tmp_t8] "=&r"(tmp_t8), [tmp_t9] "=&r"(tmp_t9)
        : [dst_argb4444] "r"(dst_argb4444), [yg] "r"(yg), [src_u] "r"(src_u),
          [src_v] "r"(src_v), [src_y] "r"(src_y), [tmp_ub] "r"(tmp_ub),
          [tmp_ug] "r"(tmp_ug), [tmp_vg] "r"(tmp_vg), [tmp_vr] "r"(tmp_vr),
          [tmp_bb] "r"(tmp_bb), [tmp_bg] "r"(tmp_bg), [tmp_br] "r"(tmp_br),
          [tmp_yg] "r"(tmp_yg), [tmp_mask] "r"(tmp_mask));
    src_y += 2;
    src_u += 1;
    src_v += 1;
    dst_argb4444 += 4;  // Advance 2 pixels.
  }
}

void I422ToARGB1555Row_DSPR2(const uint8* src_y,
                             const uint8* src_u,
                             const uint8* src_v,
                             uint8* dst_argb1555,
                             const struct YuvConstants* yuvconstants,
                             int width) {
  int x;
  uint32 tmp_ub = yuvconstants->kUVToB[0];
  uint32 tmp_ug = yuvconstants->kUVToG[0];
  uint32 tmp_vg = yuvconstants->kUVToG[1];
  uint32 tmp_vr = yuvconstants->kUVToR[1];
  uint32 tmp_bb = yuvconstants->kUVBiasB[0];
  uint32 tmp_bg = yuvconstants->kUVBiasG[0];
  uint32 tmp_br = yuvconstants->kUVBiasR[0];
  uint32 yg = yuvconstants->kYToRgb[0];
  uint32 tmp_yg;
  uint32 tmp_mask = 0x80008000;
  tmp_bb = ((uint)(tmp_bb & 0xffff) << 16) | (tmp_bb & 0xffff);
  tmp_bg = ((uint)(tmp_bg & 0xffff) << 16) | (tmp_bg & 0xffff);
  tmp_br = ((uint)(tmp_br & 0xffff) << 16) | (tmp_br & 0xffff);
  tmp_yg = ((uint)(yg & 0xffff) << 16) | (yg & 0xffff);
  tmp_ub = ~(((uint)(tmp_ub & 0xffff) << 16) | (tmp_ub & 0xffff)) + 0x00010001;
  tmp_ug = ((uint)(tmp_ug & 0xffff) << 16) | (tmp_ug & 0xffff);
  tmp_vg = ((uint)(tmp_vg & 0xffff) << 16) | (tmp_vg & 0xffff);
  tmp_vr = ~(((uint)(tmp_vr & 0xffff) << 16) | (tmp_vr & 0xffff)) + 0x00010001;
  yg = yg * 0x0101;

  for (x = 0; x < width - 1; x += 2) {
    uint32 tmp_t1, tmp_t2, tmp_t3, tmp_t4, tmp_t5;
    uint32 tmp_t6, tmp_t7, tmp_t8, tmp_t9;
    __asm__ __volatile__(
        ".set push                                             \n"
        ".set noreorder                                        \n"
        "lbu              %[tmp_t7], 0(%[src_y])               \n"
        "lbu              %[tmp_t1], 1(%[src_y])               \n"
        "mul              %[tmp_t7], %[tmp_t7],     %[yg]      \n"
        "mul              %[tmp_t1], %[tmp_t1],     %[yg]      \n"
        "lbu              %[tmp_t2], 0(%[src_u])               \n"
        "lbu              %[tmp_t3], 0(%[src_v])               \n"
        "replv.ph         %[tmp_t2], %[tmp_t2]                 \n"
        "replv.ph         %[tmp_t3], %[tmp_t3]                 \n"
        "mul.ph           %[tmp_t4], %[tmp_t2],     %[tmp_ub]  \n"
        "mul.ph           %[tmp_t5], %[tmp_t2],     %[tmp_ug]  \n"
        "mul.ph           %[tmp_t6], %[tmp_t3],     %[tmp_vr]  \n"
        "mul.ph           %[tmp_t3], %[tmp_t3],     %[tmp_vg]  \n"
        "srl              %[tmp_t7], %[tmp_t7],     16         \n"
        "ins              %[tmp_t1], %[tmp_t7],     0,      16 \n"
        "addq_s.ph        %[tmp_t7], %[tmp_t1],     %[tmp_bb]  \n"
        "addq_s.ph        %[tmp_t8], %[tmp_t1],     %[tmp_bg]  \n"
        "addq_s.ph        %[tmp_t9], %[tmp_t1],     %[tmp_br]  \n"
        "addq_s.ph        %[tmp_t5], %[tmp_t5],     %[tmp_t3]  \n"
        "addq_s.ph        %[tmp_t7], %[tmp_t7],     %[tmp_t4]  \n"
        "subq_s.ph        %[tmp_t8], %[tmp_t8],     %[tmp_t5]  \n"
        "addq_s.ph        %[tmp_t9], %[tmp_t9],     %[tmp_t6]  \n"
        "shra.ph          %[tmp_t7], %[tmp_t7],     6          \n"
        "shra.ph          %[tmp_t8], %[tmp_t8],     6          \n"
        "shra.ph          %[tmp_t9], %[tmp_t9],     6          \n"
        "shll_s.ph        %[tmp_t7], %[tmp_t7],     7          \n"
        "shll_s.ph        %[tmp_t8], %[tmp_t8],     7          \n"
        "shll_s.ph        %[tmp_t9], %[tmp_t9],     7          \n"
        "precrqu_s.qb.ph  %[tmp_t8], %[tmp_mask],   %[tmp_t8]  \n"
        "precrqu_s.qb.ph  %[tmp_t7], %[tmp_t9],     %[tmp_t7]  \n"
        "precrq.ph.w      %[tmp_t2], %[tmp_t8],     %[tmp_t7]  \n"
        "ins              %[tmp_t7], %[tmp_t8],     16,     16 \n"
        "precr.qb.ph      %[tmp_t8], %[tmp_t2],     %[tmp_t7]  \n"
        "precrq.qb.ph     %[tmp_t7], %[tmp_t2],     %[tmp_t7]  \n"
        "ins              %[tmp_t3], %[tmp_t8],     7,      24 \n"
        "ins              %[tmp_t3], %[tmp_t8],     10,     16 \n"
        "ins              %[tmp_t3], %[tmp_t8],     13,     8  \n"
        "ins              %[tmp_t4], %[tmp_t7],     7,      24 \n"
        "ins              %[tmp_t4], %[tmp_t7],     10,     16 \n"
        "ins              %[tmp_t4], %[tmp_t7],     13,     8  \n"
        "precrq.ph.w      %[tmp_t8], %[tmp_t4],     %[tmp_t3]  \n"
        "or               %[tmp_t8], %[tmp_t8],     %[tmp_mask]\n"
        "sw               %[tmp_t8], 0(%[dst_argb1555])        \n"
        ".set pop                                              \n"
        : [tmp_t1] "=&r"(tmp_t1), [tmp_t2] "=&r"(tmp_t2),
          [tmp_t3] "=&r"(tmp_t3), [tmp_t4] "=&r"(tmp_t4),
          [tmp_t5] "=&r"(tmp_t5), [tmp_t6] "=&r"(tmp_t6),
          [tmp_t7] "=&r"(tmp_t7), [tmp_t8] "=&r"(tmp_t8), [tmp_t9] "=&r"(tmp_t9)
        : [dst_argb1555] "r"(dst_argb1555), [yg] "r"(yg), [src_u] "r"(src_u),
          [src_v] "r"(src_v), [src_y] "r"(src_y), [tmp_ub] "r"(tmp_ub),
          [tmp_ug] "r"(tmp_ug), [tmp_vg] "r"(tmp_vg), [tmp_vr] "r"(tmp_vr),
          [tmp_bb] "r"(tmp_bb), [tmp_bg] "r"(tmp_bg), [tmp_br] "r"(tmp_br),
          [tmp_yg] "r"(tmp_yg), [tmp_mask] "r"(tmp_mask));
    src_y += 2;
    src_u += 1;
    src_v += 1;
    dst_argb1555 += 4;  // Advance 2 pixels.
  }
}

void NV12ToARGBRow_DSPR2(const uint8* src_y,
                         const uint8* src_uv,
                         uint8* rgb_buf,
                         const struct YuvConstants* yuvconstants,
                         int width) {
  int x;
  uint32 tmp_ub = yuvconstants->kUVToB[0];
  uint32 tmp_ug = yuvconstants->kUVToG[0];
  uint32 tmp_vg = yuvconstants->kUVToG[1];
  uint32 tmp_vr = yuvconstants->kUVToR[1];
  uint32 tmp_bb = yuvconstants->kUVBiasB[0];
  uint32 tmp_bg = yuvconstants->kUVBiasG[0];
  uint32 tmp_br = yuvconstants->kUVBiasR[0];
  uint32 yg = yuvconstants->kYToRgb[0];
  uint32 tmp_mask = 0x7fff7fff;
  uint32 tmp_yg;
  tmp_bb = ((uint)(tmp_bb & 0xffff) << 16) | (tmp_bb & 0xffff);
  tmp_bg = ((uint)(tmp_bg & 0xffff) << 16) | (tmp_bg & 0xffff);
  tmp_br = ((uint)(tmp_br & 0xffff) << 16) | (tmp_br & 0xffff);
  tmp_yg = ((uint)(yg & 0xffff) << 16) | (yg & 0xffff);
  tmp_ub = ~(((uint)(tmp_ub & 0xffff) << 16) | (tmp_ub & 0xffff)) + 0x00010001;
  tmp_ug = ((uint)(tmp_ug & 0xffff) << 16) | (tmp_ug & 0xffff);
  tmp_vg = ((uint)(tmp_vg & 0xffff) << 16) | (tmp_vg & 0xffff);
  tmp_vr = ~(((uint)(tmp_vr & 0xffff) << 16) | (tmp_vr & 0xffff)) + 0x00010001;
  yg = yg * 0x0101;

  for (x = 0; x < width - 1; x += 2) {
    uint32 tmp_t1, tmp_t2, tmp_t3, tmp_t4, tmp_t5;
    uint32 tmp_t6, tmp_t7, tmp_t8, tmp_t9;
    __asm__ __volatile__(
        ".set push                                             \n"
        ".set noreorder                                        \n"
        "lbu              %[tmp_t7], 0(%[src_y])               \n"
        "lbu              %[tmp_t1], 1(%[src_y])               \n"
        "mul              %[tmp_t7], %[tmp_t7],     %[yg]      \n"
        "mul              %[tmp_t1], %[tmp_t1],     %[yg]      \n"
        "lbu              %[tmp_t2], 0(%[src_uv])              \n"
        "lbu              %[tmp_t3], 1(%[src_uv])              \n"
        "replv.ph         %[tmp_t2], %[tmp_t2]                 \n"
        "replv.ph         %[tmp_t3], %[tmp_t3]                 \n"
        "mul.ph           %[tmp_t4], %[tmp_t2],     %[tmp_ub]  \n"
        "mul.ph           %[tmp_t5], %[tmp_t2],     %[tmp_ug]  \n"
        "mul.ph           %[tmp_t6], %[tmp_t3],     %[tmp_vr]  \n"
        "mul.ph           %[tmp_t3], %[tmp_t3],     %[tmp_vg]  \n"
        "srl              %[tmp_t7], %[tmp_t7],     16         \n"
        "ins              %[tmp_t1], %[tmp_t7],     0,      16 \n"
        "addq_s.ph        %[tmp_t7], %[tmp_t1],     %[tmp_bb]  \n"
        "addq_s.ph        %[tmp_t8], %[tmp_t1],     %[tmp_bg]  \n"
        "addq_s.ph        %[tmp_t9], %[tmp_t1],     %[tmp_br]  \n"
        "addq_s.ph        %[tmp_t5], %[tmp_t5],     %[tmp_t3]  \n"
        "addq_s.ph        %[tmp_t7], %[tmp_t7],     %[tmp_t4]  \n"
        "subq_s.ph        %[tmp_t8], %[tmp_t8],     %[tmp_t5]  \n"
        "addq_s.ph        %[tmp_t9], %[tmp_t9],     %[tmp_t6]  \n"
        "shra.ph          %[tmp_t7], %[tmp_t7],     6          \n"
        "shra.ph          %[tmp_t8], %[tmp_t8],     6          \n"
        "shra.ph          %[tmp_t9], %[tmp_t9],     6          \n"
        "shll_s.ph        %[tmp_t7], %[tmp_t7],     7          \n"
        "shll_s.ph        %[tmp_t8], %[tmp_t8],     7          \n"
        "shll_s.ph        %[tmp_t9], %[tmp_t9],     7          \n"
        "precrqu_s.qb.ph  %[tmp_t8], %[tmp_mask],   %[tmp_t8]  \n"
        "precrqu_s.qb.ph  %[tmp_t7], %[tmp_t9],     %[tmp_t7]  \n"
        "precrq.ph.w      %[tmp_t2], %[tmp_t8],     %[tmp_t7]  \n"
        "ins              %[tmp_t7], %[tmp_t8],     16,     16 \n"
        "precr.qb.ph      %[tmp_t8], %[tmp_t2],     %[tmp_t7]  \n"
        "precrq.qb.ph     %[tmp_t7], %[tmp_t2],     %[tmp_t7]  \n"
        "sw               %[tmp_t8], 0(%[rgb_buf])             \n"
        "sw               %[tmp_t7], 4(%[rgb_buf])             \n"
        ".set pop                                              \n"
        : [tmp_t1] "=&r"(tmp_t1), [tmp_t2] "=&r"(tmp_t2),
          [tmp_t3] "=&r"(tmp_t3), [tmp_t4] "=&r"(tmp_t4),
          [tmp_t5] "=&r"(tmp_t5), [tmp_t6] "=&r"(tmp_t6),
          [tmp_t7] "=&r"(tmp_t7), [tmp_t8] "=&r"(tmp_t8), [tmp_t9] "=&r"(tmp_t9)
        : [src_y] "r"(src_y), [src_uv] "r"(src_uv), [yg] "r"(yg),
          [tmp_ub] "r"(tmp_ub), [tmp_ug] "r"(tmp_ug), [tmp_vg] "r"(tmp_vg),
          [tmp_vr] "r"(tmp_vr), [tmp_bb] "r"(tmp_bb), [tmp_bg] "r"(tmp_bg),
          [tmp_br] "r"(tmp_br), [tmp_yg] "r"(tmp_yg), [rgb_buf] "r"(rgb_buf),
          [tmp_mask] "r"(tmp_mask));

    src_y += 2;
    src_uv += 2;
    rgb_buf += 8;  // Advance 2 pixels.
  }
}

void BGRAToUVRow_DSPR2(const uint8* src_rgb0,
                       int src_stride_rgb,
                       uint8* dst_u,
                       uint8* dst_v,
                       int width) {
  const uint8* src_rgb1 = src_rgb0 + src_stride_rgb;
  int x;
  int const1 = 0xffda0000;
  int const2 = 0x0070ffb6;
  int const3 = 0x00700000;
  int const4 = 0xffeeffa2;
  int const5 = 0x100;
  for (x = 0; x < width - 1; x += 2) {
    int tmp_t1, tmp_t2, tmp_t3, tmp_t4, tmp_t5;
    int tmp_t6, tmp_t7, tmp_t8;
    __asm__ __volatile__(
        ".set push                                                 \n"
        ".set noreorder                                            \n"
        "lw                %[tmp_t1],   0(%[src_rgb0])             \n"
        "lw                %[tmp_t2],   4(%[src_rgb0])             \n"
        "lw                %[tmp_t3],   0(%[src_rgb1])             \n"
        "lw                %[tmp_t4],   4(%[src_rgb1])             \n"
        "preceu.ph.qbr     %[tmp_t5],   %[tmp_t1]                  \n"
        "preceu.ph.qbl     %[tmp_t1],   %[tmp_t1]                  \n"
        "preceu.ph.qbr     %[tmp_t6],   %[tmp_t2]                  \n"
        "preceu.ph.qbl     %[tmp_t2],   %[tmp_t2]                  \n"
        "preceu.ph.qbr     %[tmp_t7],   %[tmp_t3]                  \n"
        "preceu.ph.qbl     %[tmp_t3],   %[tmp_t3]                  \n"
        "preceu.ph.qbr     %[tmp_t8],   %[tmp_t4]                  \n"
        "preceu.ph.qbl     %[tmp_t4],   %[tmp_t4]                  \n"
        "addu.ph           %[tmp_t5],   %[tmp_t5],     %[tmp_t6]   \n"
        "addu.ph           %[tmp_t7],   %[tmp_t7],     %[tmp_t8]   \n"
        "addu.ph           %[tmp_t1],   %[tmp_t1],     %[tmp_t2]   \n"
        "addu.ph           %[tmp_t3],   %[tmp_t3],     %[tmp_t4]   \n"
        "addu.ph           %[tmp_t5],   %[tmp_t5],     %[tmp_t7]   \n"
        "addu.ph           %[tmp_t1],   %[tmp_t1],     %[tmp_t3]   \n"
        "shrl.ph           %[tmp_t5],   %[tmp_t5],     2           \n"
        "shrl.ph           %[tmp_t1],   %[tmp_t1],     2           \n"
        "mult              $ac0,        %[const5],     %[const5]   \n"
        "mult              $ac1,        %[const5],     %[const5]   \n"
        "dpaq_s.w.ph       $ac0,        %[tmp_t5],     %[const1]   \n"
        "dpaq_s.w.ph       $ac1,        %[tmp_t5],     %[const3]   \n"
        "dpaq_s.w.ph       $ac0,        %[tmp_t1],     %[const2]   \n"
        "dpaq_s.w.ph       $ac1,        %[tmp_t1],     %[const4]   \n"
        "extr_r.w          %[tmp_t7],   $ac0,          9           \n"
        "extr_r.w          %[tmp_t8],   $ac1,          9           \n"
        "addiu             %[dst_u],    %[dst_u],    1             \n"
        "addiu             %[dst_v],    %[dst_v],    1             \n"
        "addiu             %[src_rgb0], %[src_rgb0], 8             \n"
        "addiu             %[src_rgb1], %[src_rgb1], 8             \n"
        "sb                %[tmp_t7],   -1(%[dst_u])               \n"
        "sb                %[tmp_t8],   -1(%[dst_v])               \n"
        ".set pop                                                  \n"
        : [tmp_t1] "=&r"(tmp_t1), [tmp_t2] "=&r"(tmp_t2),
          [tmp_t3] "=&r"(tmp_t3), [tmp_t4] "=&r"(tmp_t4),
          [tmp_t5] "=&r"(tmp_t5), [tmp_t6] "=&r"(tmp_t6),
          [tmp_t7] "=&r"(tmp_t7), [tmp_t8] "=&r"(tmp_t8),
          [src_rgb0] "+r"(src_rgb0), [src_rgb1] "+r"(src_rgb1),
          [dst_u] "+r"(dst_u), [dst_v] "+r"(dst_v)
        : [const1] "r"(const1), [const2] "r"(const2), [const3] "r"(const3),
          [const4] "r"(const4), [const5] "r"(const5)
        : "hi", "lo", "$ac1lo", "$ac1hi");
  }
}

void BGRAToYRow_DSPR2(const uint8* src_argb0, uint8* dst_y, int width) {
  int x;
  int const1 = 0x00420000;
  int const2 = 0x00190081;
  int const5 = 0x40;
  for (x = 0; x < width; x += 4) {
    int tmp_t1, tmp_t2, tmp_t3, tmp_t4, tmp_t5;
    int tmp_t6, tmp_t7, tmp_t8;
    __asm__ __volatile__(
        ".set push                                                \n"
        ".set noreorder                                           \n"
        "lw                %[tmp_t1],   0(%[src_argb0])           \n"
        "lw                %[tmp_t2],   4(%[src_argb0])           \n"
        "lw                %[tmp_t3],   8(%[src_argb0])           \n"
        "lw                %[tmp_t4],   12(%[src_argb0])          \n"
        "preceu.ph.qbr     %[tmp_t5],   %[tmp_t1]                 \n"
        "preceu.ph.qbl     %[tmp_t1],   %[tmp_t1]                 \n"
        "preceu.ph.qbr     %[tmp_t6],   %[tmp_t2]                 \n"
        "preceu.ph.qbl     %[tmp_t2],   %[tmp_t2]                 \n"
        "preceu.ph.qbr     %[tmp_t7],   %[tmp_t3]                 \n"
        "preceu.ph.qbl     %[tmp_t3],   %[tmp_t3]                 \n"
        "preceu.ph.qbr     %[tmp_t8],   %[tmp_t4]                 \n"
        "preceu.ph.qbl     %[tmp_t4],   %[tmp_t4]                 \n"
        "mult              $ac0,        %[const5],     %[const5]  \n"
        "mult              $ac1,        %[const5],     %[const5]  \n"
        "mult              $ac2,        %[const5],     %[const5]  \n"
        "mult              $ac3,        %[const5],     %[const5]  \n"
        "dpa.w.ph          $ac0,        %[tmp_t5],     %[const1]  \n"
        "dpa.w.ph          $ac1,        %[tmp_t6],     %[const1]  \n"
        "dpa.w.ph          $ac2,        %[tmp_t7],     %[const1]  \n"
        "dpa.w.ph          $ac3,        %[tmp_t8],     %[const1]  \n"
        "dpa.w.ph          $ac0,        %[tmp_t1],     %[const2]  \n"
        "dpa.w.ph          $ac1,        %[tmp_t2],     %[const2]  \n"
        "dpa.w.ph          $ac2,        %[tmp_t3],     %[const2]  \n"
        "dpa.w.ph          $ac3,        %[tmp_t4],     %[const2]  \n"
        "extr_r.w          %[tmp_t1],   $ac0,          8          \n"
        "extr_r.w          %[tmp_t2],   $ac1,          8          \n"
        "extr_r.w          %[tmp_t3],   $ac2,          8          \n"
        "extr_r.w          %[tmp_t4],   $ac3,          8          \n"
        "addiu             %[src_argb0],%[src_argb0],  16         \n"
        "addiu             %[dst_y],    %[dst_y],      4          \n"
        "sb                %[tmp_t1],   -4(%[dst_y])              \n"
        "sb                %[tmp_t2],   -3(%[dst_y])              \n"
        "sb                %[tmp_t3],   -2(%[dst_y])              \n"
        "sb                %[tmp_t4],   -1(%[dst_y])              \n"
        ".set pop                                                 \n"
        : [tmp_t1] "=&r"(tmp_t1), [tmp_t2] "=&r"(tmp_t2),
          [tmp_t3] "=&r"(tmp_t3), [tmp_t4] "=&r"(tmp_t4),
          [tmp_t5] "=&r"(tmp_t5), [tmp_t6] "=&r"(tmp_t6),
          [tmp_t7] "=&r"(tmp_t7), [tmp_t8] "=&r"(tmp_t8),
          [src_argb0] "+r"(src_argb0), [dst_y] "+r"(dst_y)
        : [const1] "r"(const1), [const2] "r"(const2), [const5] "r"(const5)
        : "hi", "lo", "$ac1lo", "$ac1hi", "$ac2lo", "$ac2hi", "$ac3lo",
          "$ac3hi");
  }
}

void ABGRToUVRow_DSPR2(const uint8* src_rgb0,
                       int src_stride_rgb,
                       uint8* dst_u,
                       uint8* dst_v,
                       int width) {
  const uint8* src_rgb1 = src_rgb0 + src_stride_rgb;
  int x;
  int const1 = 0xffb6ffda;
  int const2 = 0x00000070;
  int const3 = 0xffa20070;
  int const4 = 0x0000ffee;
  int const5 = 0x100;

  for (x = 0; x < width - 1; x += 2) {
    int tmp_t1, tmp_t2, tmp_t3, tmp_t4, tmp_t5;
    int tmp_t6, tmp_t7, tmp_t8;
    __asm__ __volatile__(
        ".set push                                                \n"
        ".set noreorder                                           \n"
        "lw                %[tmp_t1],   0(%[src_rgb0])            \n"
        "lw                %[tmp_t2],   4(%[src_rgb0])            \n"
        "lw                %[tmp_t3],   0(%[src_rgb1])            \n"
        "lw                %[tmp_t4],   4(%[src_rgb1])            \n"
        "preceu.ph.qbr     %[tmp_t5],   %[tmp_t1]                 \n"
        "preceu.ph.qbl     %[tmp_t1],   %[tmp_t1]                 \n"
        "preceu.ph.qbr     %[tmp_t6],   %[tmp_t2]                 \n"
        "preceu.ph.qbl     %[tmp_t2],   %[tmp_t2]                 \n"
        "preceu.ph.qbr     %[tmp_t7],   %[tmp_t3]                 \n"
        "preceu.ph.qbl     %[tmp_t3],   %[tmp_t3]                 \n"
        "preceu.ph.qbr     %[tmp_t8],   %[tmp_t4]                 \n"
        "preceu.ph.qbl     %[tmp_t4],   %[tmp_t4]                 \n"
        "addu.ph           %[tmp_t5],   %[tmp_t5],     %[tmp_t6]  \n"
        "addu.ph           %[tmp_t7],   %[tmp_t7],     %[tmp_t8]  \n"
        "addu.ph           %[tmp_t1],   %[tmp_t1],     %[tmp_t2]  \n"
        "addu.ph           %[tmp_t3],   %[tmp_t3],     %[tmp_t4]  \n"
        "addu.ph           %[tmp_t5],   %[tmp_t5],     %[tmp_t7]  \n"
        "addu.ph           %[tmp_t1],   %[tmp_t1],     %[tmp_t3]  \n"
        "shrl.ph           %[tmp_t5],   %[tmp_t5],     2          \n"
        "shrl.ph           %[tmp_t1],   %[tmp_t1],     2          \n"
        "mult              $ac0,        %[const5],     %[const5]  \n"
        "mult              $ac1,        %[const5],     %[const5]  \n"
        "dpaq_s.w.ph       $ac0,        %[tmp_t5],     %[const1]  \n"
        "dpaq_s.w.ph       $ac1,        %[tmp_t5],     %[const3]  \n"
        "dpaq_s.w.ph       $ac0,        %[tmp_t1],     %[const2]  \n"
        "dpaq_s.w.ph       $ac1,        %[tmp_t1],     %[const4]  \n"
        "extr_r.w          %[tmp_t7],   $ac0,          9          \n"
        "extr_r.w          %[tmp_t8],   $ac1,          9          \n"
        "addiu             %[dst_u],    %[dst_u],    1            \n"
        "addiu             %[dst_v],    %[dst_v],    1            \n"
        "addiu             %[src_rgb0], %[src_rgb0], 8            \n"
        "addiu             %[src_rgb1], %[src_rgb1], 8            \n"
        "sb                %[tmp_t7],   -1(%[dst_u])              \n"
        "sb                %[tmp_t8],   -1(%[dst_v])              \n"
        ".set pop                                                 \n"
        : [tmp_t1] "=&r"(tmp_t1), [tmp_t2] "=&r"(tmp_t2),
          [tmp_t3] "=&r"(tmp_t3), [tmp_t4] "=&r"(tmp_t4),
          [tmp_t5] "=&r"(tmp_t5), [tmp_t6] "=&r"(tmp_t6),
          [tmp_t7] "=&r"(tmp_t7), [tmp_t8] "=&r"(tmp_t8),
          [src_rgb0] "+r"(src_rgb0), [src_rgb1] "+r"(src_rgb1),
          [dst_u] "+r"(dst_u), [dst_v] "+r"(dst_v)
        : [const1] "r"(const1), [const2] "r"(const2), [const3] "r"(const3),
          [const4] "r"(const4), [const5] "r"(const5)
        : "hi", "lo", "$ac1lo", "$ac1hi");
  }
}

void ARGBToYRow_DSPR2(const uint8* src_argb0, uint8* dst_y, int width) {
  int x;
  int const1 = 0x00810019;
  int const2 = 0x00000042;
  int const5 = 0x40;
  for (x = 0; x < width; x += 4) {
    int tmp_t1, tmp_t2, tmp_t3, tmp_t4, tmp_t5;
    int tmp_t6, tmp_t7, tmp_t8;
    __asm__ __volatile__(
        ".set push                                                \n"
        ".set noreorder                                           \n"
        "lw                %[tmp_t1],   0(%[src_argb0])           \n"
        "lw                %[tmp_t2],   4(%[src_argb0])           \n"
        "lw                %[tmp_t3],   8(%[src_argb0])           \n"
        "lw                %[tmp_t4],   12(%[src_argb0])          \n"
        "preceu.ph.qbr     %[tmp_t5],   %[tmp_t1]                 \n"
        "preceu.ph.qbl     %[tmp_t1],   %[tmp_t1]                 \n"
        "preceu.ph.qbr     %[tmp_t6],   %[tmp_t2]                 \n"
        "preceu.ph.qbl     %[tmp_t2],   %[tmp_t2]                 \n"
        "preceu.ph.qbr     %[tmp_t7],   %[tmp_t3]                 \n"
        "preceu.ph.qbl     %[tmp_t3],   %[tmp_t3]                 \n"
        "preceu.ph.qbr     %[tmp_t8],   %[tmp_t4]                 \n"
        "preceu.ph.qbl     %[tmp_t4],   %[tmp_t4]                 \n"
        "mult              $ac0,        %[const5],     %[const5]  \n"
        "mult              $ac1,        %[const5],     %[const5]  \n"
        "mult              $ac2,        %[const5],     %[const5]  \n"
        "mult              $ac3,        %[const5],     %[const5]  \n"
        "dpa.w.ph          $ac0,        %[tmp_t5],     %[const1]  \n"
        "dpa.w.ph          $ac1,        %[tmp_t6],     %[const1]  \n"
        "dpa.w.ph          $ac2,        %[tmp_t7],     %[const1]  \n"
        "dpa.w.ph          $ac3,        %[tmp_t8],     %[const1]  \n"
        "dpa.w.ph          $ac0,        %[tmp_t1],     %[const2]  \n"
        "dpa.w.ph          $ac1,        %[tmp_t2],     %[const2]  \n"
        "dpa.w.ph          $ac2,        %[tmp_t3],     %[const2]  \n"
        "dpa.w.ph          $ac3,        %[tmp_t4],     %[const2]  \n"
        "extr_r.w          %[tmp_t1],   $ac0,          8          \n"
        "extr_r.w          %[tmp_t2],   $ac1,          8          \n"
        "extr_r.w          %[tmp_t3],   $ac2,          8          \n"
        "extr_r.w          %[tmp_t4],   $ac3,          8          \n"
        "addiu             %[dst_y],    %[dst_y],      4          \n"
        "addiu             %[src_argb0],%[src_argb0],  16         \n"
        "sb                %[tmp_t1],   -4(%[dst_y])              \n"
        "sb                %[tmp_t2],   -3(%[dst_y])              \n"
        "sb                %[tmp_t3],   -2(%[dst_y])              \n"
        "sb                %[tmp_t4],   -1(%[dst_y])              \n"
        ".set pop                                                 \n"
        : [tmp_t1] "=&r"(tmp_t1), [tmp_t2] "=&r"(tmp_t2),
          [tmp_t3] "=&r"(tmp_t3), [tmp_t4] "=&r"(tmp_t4),
          [tmp_t5] "=&r"(tmp_t5), [tmp_t6] "=&r"(tmp_t6),
          [tmp_t7] "=&r"(tmp_t7), [tmp_t8] "=&r"(tmp_t8),
          [src_argb0] "+r"(src_argb0), [dst_y] "+r"(dst_y)
        : [const1] "r"(const1), [const2] "r"(const2), [const5] "r"(const5)
        : "hi", "lo", "$ac1lo", "$ac1hi", "$ac2lo", "$ac2hi", "$ac3lo",
          "$ac3hi");
  }
}

void ABGRToYRow_DSPR2(const uint8* src_argb0, uint8* dst_y, int width) {
  int x;
  int const1 = 0x00810042;
  int const2 = 0x00000019;
  int const5 = 0x40;
  for (x = 0; x < width; x += 4) {
    int tmp_t1, tmp_t2, tmp_t3, tmp_t4, tmp_t5;
    int tmp_t6, tmp_t7, tmp_t8;
    __asm__ __volatile__(
        ".set push                                                \n"
        ".set noreorder                                           \n"
        "lw                %[tmp_t1],   0(%[src_argb0])           \n"
        "lw                %[tmp_t2],   4(%[src_argb0])           \n"
        "lw                %[tmp_t3],   8(%[src_argb0])           \n"
        "lw                %[tmp_t4],   12(%[src_argb0])          \n"
        "preceu.ph.qbr     %[tmp_t5],   %[tmp_t1]                 \n"
        "preceu.ph.qbl     %[tmp_t1],   %[tmp_t1]                 \n"
        "preceu.ph.qbr     %[tmp_t6],   %[tmp_t2]                 \n"
        "preceu.ph.qbl     %[tmp_t2],   %[tmp_t2]                 \n"
        "preceu.ph.qbr     %[tmp_t7],   %[tmp_t3]                 \n"
        "preceu.ph.qbl     %[tmp_t3],   %[tmp_t3]                 \n"
        "preceu.ph.qbr     %[tmp_t8],   %[tmp_t4]                 \n"
        "preceu.ph.qbl     %[tmp_t4],   %[tmp_t4]                 \n"
        "mult              $ac0,        %[const5],     %[const5]  \n"
        "mult              $ac1,        %[const5],     %[const5]  \n"
        "mult              $ac2,        %[const5],     %[const5]  \n"
        "mult              $ac3,        %[const5],     %[const5]  \n"
        "dpa.w.ph          $ac0,        %[tmp_t5],     %[const1]  \n"
        "dpa.w.ph          $ac1,        %[tmp_t6],     %[const1]  \n"
        "dpa.w.ph          $ac2,        %[tmp_t7],     %[const1]  \n"
        "dpa.w.ph          $ac3,        %[tmp_t8],     %[const1]  \n"
        "dpa.w.ph          $ac0,        %[tmp_t1],     %[const2]  \n"
        "dpa.w.ph          $ac1,        %[tmp_t2],     %[const2]  \n"
        "dpa.w.ph          $ac2,        %[tmp_t3],     %[const2]  \n"
        "dpa.w.ph          $ac3,        %[tmp_t4],     %[const2]  \n"
        "extr_r.w          %[tmp_t1],   $ac0,          8          \n"
        "extr_r.w          %[tmp_t2],   $ac1,          8          \n"
        "extr_r.w          %[tmp_t3],   $ac2,          8          \n"
        "extr_r.w          %[tmp_t4],   $ac3,          8          \n"
        "addiu             %[src_argb0],%[src_argb0],  16         \n"
        "addiu             %[dst_y],    %[dst_y],      4          \n"
        "sb                %[tmp_t1],   -4(%[dst_y])              \n"
        "sb                %[tmp_t2],   -3(%[dst_y])              \n"
        "sb                %[tmp_t3],   -2(%[dst_y])              \n"
        "sb                %[tmp_t4],   -1(%[dst_y])              \n"
        ".set pop                                                 \n"
        : [tmp_t1] "=&r"(tmp_t1), [tmp_t2] "=&r"(tmp_t2),
          [tmp_t3] "=&r"(tmp_t3), [tmp_t4] "=&r"(tmp_t4),
          [tmp_t5] "=&r"(tmp_t5), [tmp_t6] "=&r"(tmp_t6),
          [tmp_t7] "=&r"(tmp_t7), [tmp_t8] "=&r"(tmp_t8),
          [src_argb0] "+r"(src_argb0), [dst_y] "+r"(dst_y)
        : [const1] "r"(const1), [const2] "r"(const2), [const5] "r"(const5)
        : "hi", "lo", "$ac1lo", "$ac1hi", "$ac2lo", "$ac2hi", "$ac3lo",
          "$ac3hi");
  }
}

void RGBAToUVRow_DSPR2(const uint8* src_rgb0,
                       int src_stride_rgb,
                       uint8* dst_u,
                       uint8* dst_v,
                       int width) {
  const uint8* src_rgb1 = src_rgb0 + src_stride_rgb;
  int x;
  int const1 = 0xffb60070;
  int const2 = 0x0000ffda;
  int const3 = 0xffa2ffee;
  int const4 = 0x00000070;
  int const5 = 0x100;

  for (x = 0; x < width - 1; x += 2) {
    int tmp_t1, tmp_t2, tmp_t3, tmp_t4, tmp_t5;
    int tmp_t6, tmp_t7, tmp_t8;
    __asm__ __volatile__(
        ".set push                                                \n"
        ".set noreorder                                           \n"
        "ulw               %[tmp_t1],   0+1(%[src_rgb0])          \n"
        "ulw               %[tmp_t2],   4+1(%[src_rgb0])          \n"
        "ulw               %[tmp_t3],   0+1(%[src_rgb1])          \n"
        "ulw               %[tmp_t4],   4+1(%[src_rgb1])          \n"
        "preceu.ph.qbr     %[tmp_t5],   %[tmp_t1]                 \n"
        "preceu.ph.qbl     %[tmp_t1],   %[tmp_t1]                 \n"
        "preceu.ph.qbr     %[tmp_t6],   %[tmp_t2]                 \n"
        "preceu.ph.qbl     %[tmp_t2],   %[tmp_t2]                 \n"
        "preceu.ph.qbr     %[tmp_t7],   %[tmp_t3]                 \n"
        "preceu.ph.qbl     %[tmp_t3],   %[tmp_t3]                 \n"
        "preceu.ph.qbr     %[tmp_t8],   %[tmp_t4]                 \n"
        "preceu.ph.qbl     %[tmp_t4],   %[tmp_t4]                 \n"
        "addu.ph           %[tmp_t5],   %[tmp_t5],     %[tmp_t6]  \n"
        "addu.ph           %[tmp_t7],   %[tmp_t7],     %[tmp_t8]  \n"
        "addu.ph           %[tmp_t1],   %[tmp_t1],     %[tmp_t2]  \n"
        "addu.ph           %[tmp_t3],   %[tmp_t3],     %[tmp_t4]  \n"
        "addu.ph           %[tmp_t5],   %[tmp_t5],     %[tmp_t7]  \n"
        "addu.ph           %[tmp_t1],   %[tmp_t1],     %[tmp_t3]  \n"
        "shrl.ph           %[tmp_t5],   %[tmp_t5],     2          \n"
        "shrl.ph           %[tmp_t1],   %[tmp_t1],     2          \n"
        "mult              $ac0,        %[const5],     %[const5]  \n"
        "mult              $ac1,        %[const5],     %[const5]  \n"
        "dpaq_s.w.ph       $ac0,        %[tmp_t5],     %[const1]  \n"
        "dpaq_s.w.ph       $ac1,        %[tmp_t5],     %[const3]  \n"
        "dpaq_s.w.ph       $ac0,        %[tmp_t1],     %[const2]  \n"
        "dpaq_s.w.ph       $ac1,        %[tmp_t1],     %[const4]  \n"
        "extr_r.w          %[tmp_t7],   $ac0,          9          \n"
        "extr_r.w          %[tmp_t8],   $ac1,          9          \n"
        "addiu             %[src_rgb0], %[src_rgb0], 8            \n"
        "addiu             %[src_rgb1], %[src_rgb1], 8            \n"
        "addiu             %[dst_u],    %[dst_u],    1            \n"
        "addiu             %[dst_v],    %[dst_v],    1            \n"
        "sb                %[tmp_t7],   -1(%[dst_u])              \n"
        "sb                %[tmp_t8],   -1(%[dst_v])              \n"
        ".set pop                                                 \n"
        : [tmp_t1] "=&r"(tmp_t1), [tmp_t2] "=&r"(tmp_t2),
          [tmp_t3] "=&r"(tmp_t3), [tmp_t4] "=&r"(tmp_t4),
          [tmp_t5] "=&r"(tmp_t5), [tmp_t6] "=&r"(tmp_t6),
          [tmp_t7] "=&r"(tmp_t7), [tmp_t8] "=&r"(tmp_t8),
          [src_rgb0] "+r"(src_rgb0), [src_rgb1] "+r"(src_rgb1),
          [dst_u] "+r"(dst_u), [dst_v] "+r"(dst_v)
        : [const1] "r"(const1), [const2] "r"(const2), [const3] "r"(const3),
          [const4] "r"(const4), [const5] "r"(const5)
        : "hi", "lo", "$ac1lo", "$ac1hi");
  }
}

void RGBAToYRow_DSPR2(const uint8* src_argb0, uint8* dst_y, int width) {
  int x;
  int const1 = 0x00420081;
  int const2 = 0x00190000;
  int const5 = 0x40;
  for (x = 0; x < width; x += 4) {
    int tmp_t1, tmp_t2, tmp_t3, tmp_t4, tmp_t5;
    int tmp_t6, tmp_t7, tmp_t8;
    __asm__ __volatile__(
        ".set push                                                \n"
        ".set noreorder                                           \n"
        "lw                %[tmp_t1],   0(%[src_argb0])           \n"
        "lw                %[tmp_t2],   4(%[src_argb0])           \n"
        "lw                %[tmp_t3],   8(%[src_argb0])           \n"
        "lw                %[tmp_t4],   12(%[src_argb0])          \n"
        "preceu.ph.qbl     %[tmp_t5],   %[tmp_t1]                 \n"
        "preceu.ph.qbr     %[tmp_t1],   %[tmp_t1]                 \n"
        "preceu.ph.qbl     %[tmp_t6],   %[tmp_t2]                 \n"
        "preceu.ph.qbr     %[tmp_t2],   %[tmp_t2]                 \n"
        "preceu.ph.qbl     %[tmp_t7],   %[tmp_t3]                 \n"
        "preceu.ph.qbr     %[tmp_t3],   %[tmp_t3]                 \n"
        "preceu.ph.qbl     %[tmp_t8],   %[tmp_t4]                 \n"
        "preceu.ph.qbr     %[tmp_t4],   %[tmp_t4]                 \n"
        "mult              $ac0,        %[const5],     %[const5]  \n"
        "mult              $ac1,        %[const5],     %[const5]  \n"
        "mult              $ac2,        %[const5],     %[const5]  \n"
        "mult              $ac3,        %[const5],     %[const5]  \n"
        "dpa.w.ph          $ac0,        %[tmp_t5],     %[const1]  \n"
        "dpa.w.ph          $ac1,        %[tmp_t6],     %[const1]  \n"
        "dpa.w.ph          $ac2,        %[tmp_t7],     %[const1]  \n"
        "dpa.w.ph          $ac3,        %[tmp_t8],     %[const1]  \n"
        "dpa.w.ph          $ac0,        %[tmp_t1],     %[const2]  \n"
        "dpa.w.ph          $ac1,        %[tmp_t2],     %[const2]  \n"
        "dpa.w.ph          $ac2,        %[tmp_t3],     %[const2]  \n"
        "dpa.w.ph          $ac3,        %[tmp_t4],     %[const2]  \n"
        "extr_r.w          %[tmp_t1],   $ac0,          8          \n"
        "extr_r.w          %[tmp_t2],   $ac1,          8          \n"
        "extr_r.w          %[tmp_t3],   $ac2,          8          \n"
        "extr_r.w          %[tmp_t4],   $ac3,          8          \n"
        "addiu             %[dst_y],    %[dst_y],      4          \n"
        "addiu             %[src_argb0],%[src_argb0],  16         \n"
        "sb                %[tmp_t1],   -4(%[dst_y])              \n"
        "sb                %[tmp_t2],   -3(%[dst_y])              \n"
        "sb                %[tmp_t3],   -2(%[dst_y])              \n"
        "sb                %[tmp_t4],   -1(%[dst_y])              \n"
        ".set pop                                                 \n"
        : [tmp_t1] "=&r"(tmp_t1), [tmp_t2] "=&r"(tmp_t2),
          [tmp_t3] "=&r"(tmp_t3), [tmp_t4] "=&r"(tmp_t4),
          [tmp_t5] "=&r"(tmp_t5), [tmp_t6] "=&r"(tmp_t6),
          [tmp_t7] "=&r"(tmp_t7), [tmp_t8] "=&r"(tmp_t8),
          [src_argb0] "+r"(src_argb0), [dst_y] "+r"(dst_y)
        : [const1] "r"(const1), [const2] "r"(const2), [const5] "r"(const5)
        : "hi", "lo", "$ac1lo", "$ac1hi", "$ac2lo", "$ac2hi", "$ac3lo",
          "$ac3hi");
  }
}

void ARGBToUVRow_DSPR2(const uint8* src_rgb0,
                       int src_stride_rgb,
                       uint8* dst_u,
                       uint8* dst_v,
                       int width) {
  const uint8* src_rgb1 = src_rgb0 + src_stride_rgb;
  int x;
  int const1 = 0xffb60070;
  int const2 = 0x0000ffda;
  int const3 = 0xffa2ffee;
  int const4 = 0x00000070;
  int const5 = 0x100;

  for (x = 0; x < width - 1; x += 2) {
    int tmp_t1, tmp_t2, tmp_t3, tmp_t4, tmp_t5;
    int tmp_t6, tmp_t7, tmp_t8;
    __asm__ __volatile__(
        ".set push                                                \n"
        ".set noreorder                                           \n"
        "lw                %[tmp_t1],   0(%[src_rgb0])            \n"
        "lw                %[tmp_t2],   4(%[src_rgb0])            \n"
        "lw                %[tmp_t3],   0(%[src_rgb1])            \n"
        "lw                %[tmp_t4],   4(%[src_rgb1])            \n"
        "preceu.ph.qbr     %[tmp_t5],   %[tmp_t1]                 \n"
        "preceu.ph.qbl     %[tmp_t1],   %[tmp_t1]                 \n"
        "preceu.ph.qbr     %[tmp_t6],   %[tmp_t2]                 \n"
        "preceu.ph.qbl     %[tmp_t2],   %[tmp_t2]                 \n"
        "preceu.ph.qbr     %[tmp_t7],   %[tmp_t3]                 \n"
        "preceu.ph.qbl     %[tmp_t3],   %[tmp_t3]                 \n"
        "preceu.ph.qbr     %[tmp_t8],   %[tmp_t4]                 \n"
        "preceu.ph.qbl     %[tmp_t4],   %[tmp_t4]                 \n"
        "addu.ph           %[tmp_t5],   %[tmp_t5],     %[tmp_t6]  \n"
        "addu.ph           %[tmp_t7],   %[tmp_t7],     %[tmp_t8]  \n"
        "addu.ph           %[tmp_t1],   %[tmp_t1],     %[tmp_t2]  \n"
        "addu.ph           %[tmp_t3],   %[tmp_t3],     %[tmp_t4]  \n"
        "addu.ph           %[tmp_t5],   %[tmp_t5],     %[tmp_t7]  \n"
        "addu.ph           %[tmp_t1],   %[tmp_t1],     %[tmp_t3]  \n"
        "shrl.ph           %[tmp_t5],   %[tmp_t5],     2          \n"
        "shrl.ph           %[tmp_t1],   %[tmp_t1],     2          \n"
        "mult              $ac0,        %[const5],     %[const5]  \n"
        "mult              $ac1,        %[const5],     %[const5]  \n"
        "dpaq_s.w.ph       $ac0,        %[tmp_t5],     %[const1]  \n"
        "dpaq_s.w.ph       $ac1,        %[tmp_t5],     %[const3]  \n"
        "dpaq_s.w.ph       $ac0,        %[tmp_t1],     %[const2]  \n"
        "dpaq_s.w.ph       $ac1,        %[tmp_t1],     %[const4]  \n"
        "extr_r.w          %[tmp_t7],   $ac0,          9          \n"
        "extr_r.w          %[tmp_t8],   $ac1,          9          \n"
        "addiu             %[src_rgb0], %[src_rgb0], 8            \n"
        "addiu             %[src_rgb1], %[src_rgb1], 8            \n"
        "addiu             %[dst_u],    %[dst_u],    1            \n"
        "addiu             %[dst_v],    %[dst_v],    1            \n"
        "sb                %[tmp_t7],   -1(%[dst_u])              \n"
        "sb                %[tmp_t8],   -1(%[dst_v])              \n"
        ".set pop                                                 \n"
        : [tmp_t1] "=&r"(tmp_t1), [tmp_t2] "=&r"(tmp_t2),
          [tmp_t3] "=&r"(tmp_t3), [tmp_t4] "=&r"(tmp_t4),
          [tmp_t5] "=&r"(tmp_t5), [tmp_t6] "=&r"(tmp_t6),
          [tmp_t7] "=&r"(tmp_t7), [tmp_t8] "=&r"(tmp_t8),
          [src_rgb0] "+r"(src_rgb0), [src_rgb1] "+r"(src_rgb1),
          [dst_u] "+r"(dst_u), [dst_v] "+r"(dst_v)
        : [const1] "r"(const1), [const2] "r"(const2), [const3] "r"(const3),
          [const4] "r"(const4), [const5] "r"(const5)
        : "hi", "lo", "$ac1lo", "$ac1hi");
  }
}

#endif  // __mips_dsp_rev >= 2

#endif  // defined(__mips__)

#ifdef __cplusplus
}  // extern "C"
}  // namespace libyuv
#endif