| /* |
| * 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 |
| |
| #if !defined(YUV_DISABLE_ASM) && defined(__mips__) |
| #ifdef HAS_COPYROW_MIPS |
| extern "C" void memcpy_MIPS(uint8* dst, const uint8* src, int count); |
| void CopyRow_MIPS(const uint8* src, uint8* dst, int count) { |
| memcpy_MIPS(dst, src, count); |
| } |
| #endif // HAS_COPYROW_MIPS |
| #endif // __mips__ |
| |
| // MIPS DSPR2 functions |
| #if !defined(YUV_DISABLE_ASM) && defined(__mips_dsp) && (__mips_dsp_rev >= 2) |
| void SplitUVRow_MIPS_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 SplitUVRow_Unaligned_MIPS_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" |
| "lwr $t0, 0(%[src_uv]) \n" |
| "lwl $t0, 3(%[src_uv]) \n" // V1 | U1 | V0 | U0 |
| "lwr $t1, 4(%[src_uv]) \n" |
| "lwl $t1, 7(%[src_uv]) \n" // V3 | U3 | V2 | U2 |
| "lwr $t2, 8(%[src_uv]) \n" |
| "lwl $t2, 11(%[src_uv]) \n" // V5 | U5 | V4 | U4 |
| "lwr $t3, 12(%[src_uv]) \n" |
| "lwl $t3, 15(%[src_uv]) \n" // V7 | U7 | V6 | U6 |
| "lwr $t5, 16(%[src_uv]) \n" |
| "lwl $t5, 19(%[src_uv]) \n" // V9 | U9 | V8 | U8 |
| "lwr $t6, 20(%[src_uv]) \n" |
| "lwl $t6, 23(%[src_uv]) \n" // V11 | U11 | V10 | U10 |
| "lwr $t7, 24(%[src_uv]) \n" |
| "lwl $t7, 27(%[src_uv]) \n" // V13 | U13 | V12 | U12 |
| "lwr $t8, 28(%[src_uv]) \n" |
| "lwl $t8, 31(%[src_uv]) \n" // V15 | U15 | V14 | U14 |
| "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 |
| "addiu %[src_uv], %[src_uv], 32 \n" |
| "swr $t9, 0(%[dst_v]) \n" |
| "swl $t9, 3(%[dst_v]) \n" |
| "swr $t0, 0(%[dst_u]) \n" |
| "swl $t0, 3(%[dst_u]) \n" |
| "swr $t1, 4(%[dst_v]) \n" |
| "swl $t1, 7(%[dst_v]) \n" |
| "swr $t2, 4(%[dst_u]) \n" |
| "swl $t2, 7(%[dst_u]) \n" |
| "swr $t3, 8(%[dst_v]) \n" |
| "swl $t3, 11(%[dst_v]) \n" |
| "swr $t5, 8(%[dst_u]) \n" |
| "swl $t5, 11(%[dst_u]) \n" |
| "swr $t6, 12(%[dst_v]) \n" |
| "swl $t6, 15(%[dst_v]) \n" |
| "swr $t7, 12(%[dst_u]) \n" |
| "swl $t7, 15(%[dst_u]) \n" |
| "addiu %[dst_u], %[dst_u], 16 \n" |
| "bgtz $t4, 1b \n" |
| " addiu %[dst_v], %[dst_v], 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_MIPS_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_MIPS_DSPR2(const uint8* src_uv, uint8* dst_u, uint8* dst_v, |
| int width) { |
| int x = 0; |
| int y = 0; |
| __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 I422ToTransientMipsRGB \ |
| "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" |
| |
| void I422ToARGBRow_MIPS_DSPR2(const uint8* y_buf, |
| const uint8* u_buf, |
| const uint8* v_buf, |
| uint8* rgb_buf, |
| 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" |
| I422ToTransientMipsRGB |
| // 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" |
| ); |
| } |
| |
| void I422ToABGRRow_MIPS_DSPR2(const uint8* y_buf, |
| const uint8* u_buf, |
| const uint8* v_buf, |
| uint8* rgb_buf, |
| int width) { |
| __asm__ __volatile__ ( |
| ".set push \n\t" |
| ".set noreorder \n\t" |
| "beqz %[width], 2f \n\t" |
| " repl.ph $s0, 74 \n\t" // |YG|YG| = |74|74| |
| "repl.ph $s1, -25 \n\t" // |UG|UG| = |-25|-25| |
| "repl.ph $s2, -52 \n\t" // |VG|VG| = |-52|-52| |
| "repl.ph $s3, 102 \n\t" // |VR|VR| = |102|102| |
| "repl.ph $s4, 16 \n\t" // |0|16|0|16| |
| "repl.ph $s5, 128 \n\t" // |128|128| |
| "lui $s6, 0xff00 \n\t" |
| "ori $s6, 0xff00 \n\t" // |ff|00|ff|00| |
| "1: \n" |
| I422ToTransientMipsRGB |
| // Arranging into abgr format |
| "precr.qb.ph $t0, $t8, $t1 \n\t" // |G1|g1|R1|r1| |
| "precr.qb.ph $t3, $t9, $t2 \n\t" // |G0|g0|R0|r0| |
| "precrq.qb.ph $t8, $t0, $t3 \n\t" // |G1|R1|G0|R0| |
| "precr.qb.ph $t9, $t0, $t3 \n\t" // |g1|r1|g0|r0| |
| |
| "precr.qb.ph $t2, $t4, $t5 \n\t" // |B1|b1|B0|b0| |
| "addiu %[width], -4 \n\t" |
| "addiu %[y_buf], 4 \n\t" |
| "preceu.ph.qbla $t1, $t2 \n\t" // |0 |B1|0 |B0| |
| "preceu.ph.qbra $t2, $t2 \n\t" // |0 |b1|0 |b0| |
| "or $t1, $t1, $s6 \n\t" // |ff|B1|ff|B0| |
| "or $t2, $t2, $s6 \n\t" // |ff|b1|ff|b0| |
| "precrq.ph.w $t0, $t2, $t9 \n\t" // |ff|b1|g1|r1| |
| "precrq.ph.w $t3, $t1, $t8 \n\t" // |ff|B1|G1|R1| |
| "sll $t9, $t9, 16 \n\t" |
| "sll $t8, $t8, 16 \n\t" |
| "packrl.ph $t2, $t2, $t9 \n\t" // |ff|b0|g0|r0| |
| "packrl.ph $t1, $t1, $t8 \n\t" // |ff|B0|G0|R0| |
| // Store results. |
| "sw $t2, 0(%[rgb_buf]) \n\t" |
| "sw $t0, 4(%[rgb_buf]) \n\t" |
| "sw $t1, 8(%[rgb_buf]) \n\t" |
| "sw $t3, 12(%[rgb_buf]) \n\t" |
| "bnez %[width], 1b \n\t" |
| " addiu %[rgb_buf], 16 \n\t" |
| "2: \n\t" |
| ".set pop \n\t" |
| :[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" |
| ); |
| } |
| |
| void I422ToBGRARow_MIPS_DSPR2(const uint8* y_buf, |
| const uint8* u_buf, |
| const uint8* v_buf, |
| uint8* rgb_buf, |
| 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| |
| "lui $s6, 0xff \n" |
| "ori $s6, 0xff \n" // |00|ff|00|ff| |
| "1: \n" |
| I422ToTransientMipsRGB |
| // Arranging into bgra format |
| "precr.qb.ph $t4, $t4, $t8 \n" // |B1|b1|G1|g1| |
| "precr.qb.ph $t5, $t5, $t9 \n" // |B0|b0|G0|g0| |
| "precrq.qb.ph $t8, $t4, $t5 \n" // |B1|G1|B0|G0| |
| "precr.qb.ph $t9, $t4, $t5 \n" // |b1|g1|b0|g0| |
| |
| "precr.qb.ph $t2, $t1, $t2 \n" // |R1|r1|R0|r0| |
| "addiu %[width], -4 \n" |
| "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| |
| "sll $t1, $t1, 8 \n" // |R1|0 |R0|0 | |
| "sll $t2, $t2, 8 \n" // |r1|0 |r0|0 | |
| "or $t1, $t1, $s6 \n" // |R1|ff|R0|ff| |
| "or $t2, $t2, $s6 \n" // |r1|ff|r0|ff| |
| "precrq.ph.w $t0, $t9, $t2 \n" // |b1|g1|r1|ff| |
| "precrq.ph.w $t3, $t8, $t1 \n" // |B1|G1|R1|ff| |
| "sll $t1, $t1, 16 \n" |
| "sll $t2, $t2, 16 \n" |
| "packrl.ph $t2, $t9, $t2 \n" // |b0|g0|r0|ff| |
| "packrl.ph $t1, $t8, $t1 \n" // |B0|G0|R0|ff| |
| // 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" |
| ); |
| } |
| #endif // __mips_dsp_rev >= 2 |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| } // namespace libyuv |
| #endif |