mirror of
https://github.com/NekoX-Dev/NekoX.git
synced 2024-12-14 11:59:52 +01:00
783 lines
39 KiB
C++
783 lines
39 KiB
C++
/*
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* Copyright (c) 2012 The LibYuv project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "libyuv/row.h"
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#ifdef __cplusplus
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namespace libyuv {
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extern "C" {
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#endif
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// The following are available on Mips platforms:
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#if !defined(LIBYUV_DISABLE_MIPS) && defined(__mips__) && \
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(_MIPS_SIM == _MIPS_SIM_ABI32)
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#ifdef HAS_COPYROW_MIPS
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void CopyRow_MIPS(const uint8* src, uint8* dst, int count) {
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__asm__ __volatile__ (
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".set noreorder \n"
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".set noat \n"
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"slti $at, %[count], 8 \n"
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"bne $at ,$zero, $last8 \n"
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"xor $t8, %[src], %[dst] \n"
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"andi $t8, $t8, 0x3 \n"
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"bne $t8, $zero, unaligned \n"
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"negu $a3, %[dst] \n"
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// make dst/src aligned
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"andi $a3, $a3, 0x3 \n"
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"beq $a3, $zero, $chk16w \n"
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// word-aligned now count is the remining bytes count
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"subu %[count], %[count], $a3 \n"
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"lwr $t8, 0(%[src]) \n"
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"addu %[src], %[src], $a3 \n"
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"swr $t8, 0(%[dst]) \n"
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"addu %[dst], %[dst], $a3 \n"
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// Now the dst/src are mutually word-aligned with word-aligned addresses
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"$chk16w: \n"
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"andi $t8, %[count], 0x3f \n" // whole 64-B chunks?
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// t8 is the byte count after 64-byte chunks
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"beq %[count], $t8, chk8w \n"
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// There will be at most 1 32-byte chunk after it
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"subu $a3, %[count], $t8 \n" // the reminder
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// Here a3 counts bytes in 16w chunks
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"addu $a3, %[dst], $a3 \n"
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// Now a3 is the final dst after 64-byte chunks
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"addu $t0, %[dst], %[count] \n"
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// t0 is the "past the end" address
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// When in the loop we exercise "pref 30,x(a1)", the a1+x should not be past
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// the "t0-32" address
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// This means: for x=128 the last "safe" a1 address is "t0-160"
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// Alternatively, for x=64 the last "safe" a1 address is "t0-96"
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// we will use "pref 30,128(a1)", so "t0-160" is the limit
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"subu $t9, $t0, 160 \n"
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// t9 is the "last safe pref 30,128(a1)" address
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"pref 0, 0(%[src]) \n" // first line of src
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"pref 0, 32(%[src]) \n" // second line of src
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"pref 0, 64(%[src]) \n"
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"pref 30, 32(%[dst]) \n"
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// In case the a1 > t9 don't use "pref 30" at all
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"sgtu $v1, %[dst], $t9 \n"
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"bgtz $v1, $loop16w \n"
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"nop \n"
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// otherwise, start with using pref30
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"pref 30, 64(%[dst]) \n"
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"$loop16w: \n"
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"pref 0, 96(%[src]) \n"
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"lw $t0, 0(%[src]) \n"
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"bgtz $v1, $skip_pref30_96 \n" // skip
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"lw $t1, 4(%[src]) \n"
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"pref 30, 96(%[dst]) \n" // continue
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"$skip_pref30_96: \n"
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"lw $t2, 8(%[src]) \n"
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"lw $t3, 12(%[src]) \n"
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"lw $t4, 16(%[src]) \n"
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"lw $t5, 20(%[src]) \n"
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"lw $t6, 24(%[src]) \n"
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"lw $t7, 28(%[src]) \n"
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"pref 0, 128(%[src]) \n"
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// bring the next lines of src, addr 128
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"sw $t0, 0(%[dst]) \n"
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"sw $t1, 4(%[dst]) \n"
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"sw $t2, 8(%[dst]) \n"
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"sw $t3, 12(%[dst]) \n"
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"sw $t4, 16(%[dst]) \n"
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"sw $t5, 20(%[dst]) \n"
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"sw $t6, 24(%[dst]) \n"
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"sw $t7, 28(%[dst]) \n"
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"lw $t0, 32(%[src]) \n"
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"bgtz $v1, $skip_pref30_128 \n" // skip pref 30,128(a1)
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"lw $t1, 36(%[src]) \n"
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"pref 30, 128(%[dst]) \n" // set dest, addr 128
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"$skip_pref30_128: \n"
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"lw $t2, 40(%[src]) \n"
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"lw $t3, 44(%[src]) \n"
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"lw $t4, 48(%[src]) \n"
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"lw $t5, 52(%[src]) \n"
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"lw $t6, 56(%[src]) \n"
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"lw $t7, 60(%[src]) \n"
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"pref 0, 160(%[src]) \n"
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// bring the next lines of src, addr 160
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"sw $t0, 32(%[dst]) \n"
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"sw $t1, 36(%[dst]) \n"
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"sw $t2, 40(%[dst]) \n"
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"sw $t3, 44(%[dst]) \n"
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"sw $t4, 48(%[dst]) \n"
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"sw $t5, 52(%[dst]) \n"
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"sw $t6, 56(%[dst]) \n"
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"sw $t7, 60(%[dst]) \n"
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"addiu %[dst], %[dst], 64 \n" // adding 64 to dest
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"sgtu $v1, %[dst], $t9 \n"
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"bne %[dst], $a3, $loop16w \n"
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" addiu %[src], %[src], 64 \n" // adding 64 to src
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"move %[count], $t8 \n"
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// Here we have src and dest word-aligned but less than 64-bytes to go
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"chk8w: \n"
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"pref 0, 0x0(%[src]) \n"
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"andi $t8, %[count], 0x1f \n" // 32-byte chunk?
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// the t8 is the reminder count past 32-bytes
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"beq %[count], $t8, chk1w \n"
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// count=t8,no 32-byte chunk
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" nop \n"
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"lw $t0, 0(%[src]) \n"
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"lw $t1, 4(%[src]) \n"
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"lw $t2, 8(%[src]) \n"
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"lw $t3, 12(%[src]) \n"
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"lw $t4, 16(%[src]) \n"
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"lw $t5, 20(%[src]) \n"
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"lw $t6, 24(%[src]) \n"
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"lw $t7, 28(%[src]) \n"
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"addiu %[src], %[src], 32 \n"
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"sw $t0, 0(%[dst]) \n"
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"sw $t1, 4(%[dst]) \n"
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"sw $t2, 8(%[dst]) \n"
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"sw $t3, 12(%[dst]) \n"
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"sw $t4, 16(%[dst]) \n"
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"sw $t5, 20(%[dst]) \n"
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"sw $t6, 24(%[dst]) \n"
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"sw $t7, 28(%[dst]) \n"
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"addiu %[dst], %[dst], 32 \n"
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"chk1w: \n"
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"andi %[count], $t8, 0x3 \n"
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// now count is the reminder past 1w chunks
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"beq %[count], $t8, $last8 \n"
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" subu $a3, $t8, %[count] \n"
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// a3 is count of bytes in 1w chunks
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"addu $a3, %[dst], $a3 \n"
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// now a3 is the dst address past the 1w chunks
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// copying in words (4-byte chunks)
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"$wordCopy_loop: \n"
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"lw $t3, 0(%[src]) \n"
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// the first t3 may be equal t0 ... optimize?
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"addiu %[src], %[src],4 \n"
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"addiu %[dst], %[dst],4 \n"
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"bne %[dst], $a3,$wordCopy_loop \n"
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" sw $t3, -4(%[dst]) \n"
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// For the last (<8) bytes
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"$last8: \n"
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"blez %[count], leave \n"
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" addu $a3, %[dst], %[count] \n" // a3 -last dst address
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"$last8loop: \n"
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"lb $v1, 0(%[src]) \n"
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"addiu %[src], %[src], 1 \n"
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"addiu %[dst], %[dst], 1 \n"
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"bne %[dst], $a3, $last8loop \n"
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" sb $v1, -1(%[dst]) \n"
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"leave: \n"
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" j $ra \n"
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" nop \n"
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//
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// UNALIGNED case
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//
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"unaligned: \n"
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// got here with a3="negu a1"
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"andi $a3, $a3, 0x3 \n" // a1 is word aligned?
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"beqz $a3, $ua_chk16w \n"
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" subu %[count], %[count], $a3 \n"
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// bytes left after initial a3 bytes
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"lwr $v1, 0(%[src]) \n"
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"lwl $v1, 3(%[src]) \n"
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"addu %[src], %[src], $a3 \n" // a3 may be 1, 2 or 3
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"swr $v1, 0(%[dst]) \n"
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"addu %[dst], %[dst], $a3 \n"
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// below the dst will be word aligned (NOTE1)
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"$ua_chk16w: \n"
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"andi $t8, %[count], 0x3f \n" // whole 64-B chunks?
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// t8 is the byte count after 64-byte chunks
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"beq %[count], $t8, ua_chk8w \n"
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// if a2==t8, no 64-byte chunks
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// There will be at most 1 32-byte chunk after it
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"subu $a3, %[count], $t8 \n" // the reminder
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// Here a3 counts bytes in 16w chunks
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"addu $a3, %[dst], $a3 \n"
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// Now a3 is the final dst after 64-byte chunks
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"addu $t0, %[dst], %[count] \n" // t0 "past the end"
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"subu $t9, $t0, 160 \n"
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// t9 is the "last safe pref 30,128(a1)" address
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"pref 0, 0(%[src]) \n" // first line of src
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"pref 0, 32(%[src]) \n" // second line addr 32
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"pref 0, 64(%[src]) \n"
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"pref 30, 32(%[dst]) \n"
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// safe, as we have at least 64 bytes ahead
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// In case the a1 > t9 don't use "pref 30" at all
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"sgtu $v1, %[dst], $t9 \n"
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"bgtz $v1, $ua_loop16w \n"
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// skip "pref 30,64(a1)" for too short arrays
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" nop \n"
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// otherwise, start with using pref30
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"pref 30, 64(%[dst]) \n"
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"$ua_loop16w: \n"
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"pref 0, 96(%[src]) \n"
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"lwr $t0, 0(%[src]) \n"
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"lwl $t0, 3(%[src]) \n"
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"lwr $t1, 4(%[src]) \n"
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"bgtz $v1, $ua_skip_pref30_96 \n"
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" lwl $t1, 7(%[src]) \n"
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"pref 30, 96(%[dst]) \n"
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// continue setting up the dest, addr 96
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"$ua_skip_pref30_96: \n"
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"lwr $t2, 8(%[src]) \n"
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"lwl $t2, 11(%[src]) \n"
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"lwr $t3, 12(%[src]) \n"
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"lwl $t3, 15(%[src]) \n"
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"lwr $t4, 16(%[src]) \n"
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"lwl $t4, 19(%[src]) \n"
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"lwr $t5, 20(%[src]) \n"
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"lwl $t5, 23(%[src]) \n"
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"lwr $t6, 24(%[src]) \n"
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"lwl $t6, 27(%[src]) \n"
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"lwr $t7, 28(%[src]) \n"
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"lwl $t7, 31(%[src]) \n"
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"pref 0, 128(%[src]) \n"
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// bring the next lines of src, addr 128
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"sw $t0, 0(%[dst]) \n"
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"sw $t1, 4(%[dst]) \n"
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"sw $t2, 8(%[dst]) \n"
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"sw $t3, 12(%[dst]) \n"
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"sw $t4, 16(%[dst]) \n"
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"sw $t5, 20(%[dst]) \n"
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"sw $t6, 24(%[dst]) \n"
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"sw $t7, 28(%[dst]) \n"
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"lwr $t0, 32(%[src]) \n"
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"lwl $t0, 35(%[src]) \n"
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"lwr $t1, 36(%[src]) \n"
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"bgtz $v1, ua_skip_pref30_128 \n"
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" lwl $t1, 39(%[src]) \n"
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"pref 30, 128(%[dst]) \n"
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// continue setting up the dest, addr 128
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"ua_skip_pref30_128: \n"
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"lwr $t2, 40(%[src]) \n"
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"lwl $t2, 43(%[src]) \n"
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"lwr $t3, 44(%[src]) \n"
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"lwl $t3, 47(%[src]) \n"
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"lwr $t4, 48(%[src]) \n"
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"lwl $t4, 51(%[src]) \n"
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"lwr $t5, 52(%[src]) \n"
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"lwl $t5, 55(%[src]) \n"
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"lwr $t6, 56(%[src]) \n"
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"lwl $t6, 59(%[src]) \n"
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"lwr $t7, 60(%[src]) \n"
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"lwl $t7, 63(%[src]) \n"
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"pref 0, 160(%[src]) \n"
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// bring the next lines of src, addr 160
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"sw $t0, 32(%[dst]) \n"
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"sw $t1, 36(%[dst]) \n"
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"sw $t2, 40(%[dst]) \n"
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"sw $t3, 44(%[dst]) \n"
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"sw $t4, 48(%[dst]) \n"
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"sw $t5, 52(%[dst]) \n"
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"sw $t6, 56(%[dst]) \n"
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"sw $t7, 60(%[dst]) \n"
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"addiu %[dst],%[dst],64 \n" // adding 64 to dest
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"sgtu $v1,%[dst],$t9 \n"
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"bne %[dst],$a3,$ua_loop16w \n"
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" addiu %[src],%[src],64 \n" // adding 64 to src
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"move %[count],$t8 \n"
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// Here we have src and dest word-aligned but less than 64-bytes to go
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"ua_chk8w: \n"
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"pref 0, 0x0(%[src]) \n"
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"andi $t8, %[count], 0x1f \n" // 32-byte chunk?
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// the t8 is the reminder count
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"beq %[count], $t8, $ua_chk1w \n"
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// when count==t8, no 32-byte chunk
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"lwr $t0, 0(%[src]) \n"
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"lwl $t0, 3(%[src]) \n"
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"lwr $t1, 4(%[src]) \n"
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"lwl $t1, 7(%[src]) \n"
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"lwr $t2, 8(%[src]) \n"
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"lwl $t2, 11(%[src]) \n"
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"lwr $t3, 12(%[src]) \n"
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"lwl $t3, 15(%[src]) \n"
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"lwr $t4, 16(%[src]) \n"
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"lwl $t4, 19(%[src]) \n"
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"lwr $t5, 20(%[src]) \n"
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"lwl $t5, 23(%[src]) \n"
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"lwr $t6, 24(%[src]) \n"
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"lwl $t6, 27(%[src]) \n"
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"lwr $t7, 28(%[src]) \n"
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"lwl $t7, 31(%[src]) \n"
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"addiu %[src], %[src], 32 \n"
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"sw $t0, 0(%[dst]) \n"
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"sw $t1, 4(%[dst]) \n"
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"sw $t2, 8(%[dst]) \n"
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"sw $t3, 12(%[dst]) \n"
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"sw $t4, 16(%[dst]) \n"
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"sw $t5, 20(%[dst]) \n"
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"sw $t6, 24(%[dst]) \n"
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"sw $t7, 28(%[dst]) \n"
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"addiu %[dst], %[dst], 32 \n"
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"$ua_chk1w: \n"
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"andi %[count], $t8, 0x3 \n"
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// now count is the reminder past 1w chunks
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"beq %[count], $t8, ua_smallCopy \n"
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"subu $a3, $t8, %[count] \n"
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// a3 is count of bytes in 1w chunks
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"addu $a3, %[dst], $a3 \n"
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// now a3 is the dst address past the 1w chunks
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// copying in words (4-byte chunks)
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"$ua_wordCopy_loop: \n"
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"lwr $v1, 0(%[src]) \n"
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"lwl $v1, 3(%[src]) \n"
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"addiu %[src], %[src], 4 \n"
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"addiu %[dst], %[dst], 4 \n"
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// note: dst=a1 is word aligned here, see NOTE1
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"bne %[dst], $a3, $ua_wordCopy_loop \n"
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" sw $v1,-4(%[dst]) \n"
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// Now less than 4 bytes (value in count) left to copy
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"ua_smallCopy: \n"
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"beqz %[count], leave \n"
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" addu $a3, %[dst], %[count] \n" // a3 = last dst address
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"$ua_smallCopy_loop: \n"
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"lb $v1, 0(%[src]) \n"
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"addiu %[src], %[src], 1 \n"
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"addiu %[dst], %[dst], 1 \n"
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"bne %[dst],$a3,$ua_smallCopy_loop \n"
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" sb $v1, -1(%[dst]) \n"
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"j $ra \n"
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" nop \n"
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".set at \n"
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".set reorder \n"
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: [dst] "+r" (dst), [src] "+r" (src)
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: [count] "r" (count)
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: "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7",
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"t8", "t9", "a3", "v1", "at"
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);
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}
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#endif // HAS_COPYROW_MIPS
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// DSPR2 functions
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#if !defined(LIBYUV_DISABLE_MIPS) && defined(__mips_dsp) && \
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(__mips_dsp_rev >= 2) && \
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(_MIPS_SIM == _MIPS_SIM_ABI32) && (__mips_isa_rev < 6)
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void SplitUVRow_DSPR2(const uint8* src_uv, uint8* dst_u, uint8* dst_v,
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int width) {
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__asm__ __volatile__ (
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".set push \n"
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".set noreorder \n"
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"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"
|
|
);
|
|
}
|
|
|
|
// Convert (4 Y and 2 VU) I422 and arrange RGB values into
|
|
// t5 = | 0 | B0 | 0 | b0 |
|
|
// t4 = | 0 | B1 | 0 | b1 |
|
|
// t9 = | 0 | G0 | 0 | g0 |
|
|
// t8 = | 0 | G1 | 0 | g1 |
|
|
// t2 = | 0 | R0 | 0 | r0 |
|
|
// t1 = | 0 | R1 | 0 | r1 |
|
|
#define YUVTORGB \
|
|
"lw $t0, 0(%[y_buf]) \n" \
|
|
"lhu $t1, 0(%[u_buf]) \n" \
|
|
"lhu $t2, 0(%[v_buf]) \n" \
|
|
"preceu.ph.qbr $t1, $t1 \n" \
|
|
"preceu.ph.qbr $t2, $t2 \n" \
|
|
"preceu.ph.qbra $t3, $t0 \n" \
|
|
"preceu.ph.qbla $t0, $t0 \n" \
|
|
"subu.ph $t1, $t1, $s5 \n" \
|
|
"subu.ph $t2, $t2, $s5 \n" \
|
|
"subu.ph $t3, $t3, $s4 \n" \
|
|
"subu.ph $t0, $t0, $s4 \n" \
|
|
"mul.ph $t3, $t3, $s0 \n" \
|
|
"mul.ph $t0, $t0, $s0 \n" \
|
|
"shll.ph $t4, $t1, 0x7 \n" \
|
|
"subu.ph $t4, $t4, $t1 \n" \
|
|
"mul.ph $t6, $t1, $s1 \n" \
|
|
"mul.ph $t1, $t2, $s2 \n" \
|
|
"addq_s.ph $t5, $t4, $t3 \n" \
|
|
"addq_s.ph $t4, $t4, $t0 \n" \
|
|
"shra.ph $t5, $t5, 6 \n" \
|
|
"shra.ph $t4, $t4, 6 \n" \
|
|
"addiu %[u_buf], 2 \n" \
|
|
"addiu %[v_buf], 2 \n" \
|
|
"addu.ph $t6, $t6, $t1 \n" \
|
|
"mul.ph $t1, $t2, $s3 \n" \
|
|
"addu.ph $t9, $t6, $t3 \n" \
|
|
"addu.ph $t8, $t6, $t0 \n" \
|
|
"shra.ph $t9, $t9, 6 \n" \
|
|
"shra.ph $t8, $t8, 6 \n" \
|
|
"addu.ph $t2, $t1, $t3 \n" \
|
|
"addu.ph $t1, $t1, $t0 \n" \
|
|
"shra.ph $t2, $t2, 6 \n" \
|
|
"shra.ph $t1, $t1, 6 \n" \
|
|
"subu.ph $t5, $t5, $s5 \n" \
|
|
"subu.ph $t4, $t4, $s5 \n" \
|
|
"subu.ph $t9, $t9, $s5 \n" \
|
|
"subu.ph $t8, $t8, $s5 \n" \
|
|
"subu.ph $t2, $t2, $s5 \n" \
|
|
"subu.ph $t1, $t1, $s5 \n" \
|
|
"shll_s.ph $t5, $t5, 8 \n" \
|
|
"shll_s.ph $t4, $t4, 8 \n" \
|
|
"shll_s.ph $t9, $t9, 8 \n" \
|
|
"shll_s.ph $t8, $t8, 8 \n" \
|
|
"shll_s.ph $t2, $t2, 8 \n" \
|
|
"shll_s.ph $t1, $t1, 8 \n" \
|
|
"shra.ph $t5, $t5, 8 \n" \
|
|
"shra.ph $t4, $t4, 8 \n" \
|
|
"shra.ph $t9, $t9, 8 \n" \
|
|
"shra.ph $t8, $t8, 8 \n" \
|
|
"shra.ph $t2, $t2, 8 \n" \
|
|
"shra.ph $t1, $t1, 8 \n" \
|
|
"addu.ph $t5, $t5, $s5 \n" \
|
|
"addu.ph $t4, $t4, $s5 \n" \
|
|
"addu.ph $t9, $t9, $s5 \n" \
|
|
"addu.ph $t8, $t8, $s5 \n" \
|
|
"addu.ph $t2, $t2, $s5 \n" \
|
|
"addu.ph $t1, $t1, $s5 \n"
|
|
|
|
// TODO(fbarchard): accept yuv conversion constants.
|
|
void I422ToARGBRow_DSPR2(const uint8* y_buf,
|
|
const uint8* u_buf,
|
|
const uint8* v_buf,
|
|
uint8* rgb_buf,
|
|
const struct YuvConstants* yuvconstants,
|
|
int width) {
|
|
__asm__ __volatile__ (
|
|
".set push \n"
|
|
".set noreorder \n"
|
|
"beqz %[width], 2f \n"
|
|
" repl.ph $s0, 74 \n" // |YG|YG| = |74|74|
|
|
"repl.ph $s1, -25 \n" // |UG|UG| = |-25|-25|
|
|
"repl.ph $s2, -52 \n" // |VG|VG| = |-52|-52|
|
|
"repl.ph $s3, 102 \n" // |VR|VR| = |102|102|
|
|
"repl.ph $s4, 16 \n" // |0|16|0|16|
|
|
"repl.ph $s5, 128 \n" // |128|128| // clipping
|
|
"lui $s6, 0xff00 \n"
|
|
"ori $s6, 0xff00 \n" // |ff|00|ff|00|ff|
|
|
|
|
"1: \n"
|
|
YUVTORGB
|
|
// Arranging into argb format
|
|
"precr.qb.ph $t4, $t8, $t4 \n" // |G1|g1|B1|b1|
|
|
"precr.qb.ph $t5, $t9, $t5 \n" // |G0|g0|B0|b0|
|
|
"addiu %[width], -4 \n"
|
|
"precrq.qb.ph $t8, $t4, $t5 \n" // |G1|B1|G0|B0|
|
|
"precr.qb.ph $t9, $t4, $t5 \n" // |g1|b1|g0|b0|
|
|
"precr.qb.ph $t2, $t1, $t2 \n" // |R1|r1|R0|r0|
|
|
|
|
"addiu %[y_buf], 4 \n"
|
|
"preceu.ph.qbla $t1, $t2 \n" // |0 |R1|0 |R0|
|
|
"preceu.ph.qbra $t2, $t2 \n" // |0 |r1|0 |r0|
|
|
"or $t1, $t1, $s6 \n" // |ff|R1|ff|R0|
|
|
"or $t2, $t2, $s6 \n" // |ff|r1|ff|r0|
|
|
"precrq.ph.w $t0, $t2, $t9 \n" // |ff|r1|g1|b1|
|
|
"precrq.ph.w $t3, $t1, $t8 \n" // |ff|R1|G1|B1|
|
|
"sll $t9, $t9, 16 \n"
|
|
"sll $t8, $t8, 16 \n"
|
|
"packrl.ph $t2, $t2, $t9 \n" // |ff|r0|g0|b0|
|
|
"packrl.ph $t1, $t1, $t8 \n" // |ff|R0|G0|B0|
|
|
// Store results.
|
|
"sw $t2, 0(%[rgb_buf]) \n"
|
|
"sw $t0, 4(%[rgb_buf]) \n"
|
|
"sw $t1, 8(%[rgb_buf]) \n"
|
|
"sw $t3, 12(%[rgb_buf]) \n"
|
|
"bnez %[width], 1b \n"
|
|
" addiu %[rgb_buf], 16 \n"
|
|
"2: \n"
|
|
".set pop \n"
|
|
:[y_buf] "+r" (y_buf),
|
|
[u_buf] "+r" (u_buf),
|
|
[v_buf] "+r" (v_buf),
|
|
[width] "+r" (width),
|
|
[rgb_buf] "+r" (rgb_buf)
|
|
:
|
|
: "t0", "t1", "t2", "t3", "t4", "t5",
|
|
"t6", "t7", "t8", "t9",
|
|
"s0", "s1", "s2", "s3",
|
|
"s4", "s5", "s6"
|
|
);
|
|
}
|
|
|
|
// 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.ph $t6, $t6, 8 \n"
|
|
"shra.ph $t7, $t7, 8 \n"
|
|
"shra.ph $t2, $t2, 8 \n"
|
|
"shra.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"
|
|
);
|
|
}
|
|
#endif // __mips_dsp_rev >= 2
|
|
|
|
#endif // defined(__mips__)
|
|
|
|
#ifdef __cplusplus
|
|
} // extern "C"
|
|
} // namespace libyuv
|
|
#endif
|