diff options
Diffstat (limited to 'files/source/scale_mmi.cc')
| -rw-r--r-- | files/source/scale_mmi.cc | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/files/source/scale_mmi.cc b/files/source/scale_mmi.cc index 990463c2..1226ef3e 100644 --- a/files/source/scale_mmi.cc +++ b/files/source/scale_mmi.cc @@ -1103,6 +1103,61 @@ void ScaleRowUp2_16_MMI(const uint16_t* src_ptr, : "memory"); } +void ScaleRowDown34_MMI(const uint8_t* src_ptr, + ptrdiff_t src_stride, + uint8_t* dst, + int dst_width) { + (void)src_stride; + assert((dst_width % 3 == 0) && (dst_width > 0)); + uint64_t src[2]; + uint64_t tmp[2]; + __asm__ volatile ( + "1: \n\t" + "gsldlc1 %[src0], 0x07(%[src_ptr]) \n\t" + "gsldrc1 %[src0], 0x00(%[src_ptr]) \n\t" + "gsldlc1 %[src1], 0x0f(%[src_ptr]) \n\t" + "gsldrc1 %[src1], 0x08(%[src_ptr]) \n\t" + "and %[tmp1], %[src0], %[mask1] \n\t" + "psrlw %[tmp0], %[src0], %[rmov] \n\t" + "psllw %[tmp0], %[tmp0], %[lmov1] \n\t" + "or %[src0], %[tmp0], %[tmp1] \n\t" + "punpckhwd %[tmp0], %[src0], %[src0] \n\t" + "psllw %[tmp1], %[tmp0], %[rmov] \n\t" + "or %[src0], %[src0], %[tmp1] \n\t" + "psrlw %[tmp0], %[tmp0], %[rmov8] \n\t" + "pextrh %[tmp0], %[tmp0], %[zero] \n\t" + "pinsrh_2 %[src0], %[src0], %[tmp0] \n\t" + "pextrh %[tmp0], %[src1], %[zero] \n\t" + "pinsrh_3 %[src0], %[src0], %[tmp0] \n\t" + + "punpckhwd %[tmp0], %[src1], %[src1] \n\t" + "pextrh %[tmp1], %[tmp0], %[zero] \n\t" + "psrlw %[src1], %[src1], %[rmov] \n\t" + "psllw %[tmp1], %[tmp1], %[rmov8] \n\t" + "or %[src1], %[src1], %[tmp1] \n\t" + "and %[tmp0], %[tmp0], %[mask2] \n\t" + "or %[src1], %[src1], %[tmp0] \n\t" + + "gssdlc1 %[src0], 0x07(%[dst_ptr]) \n\t" + "gssdrc1 %[src0], 0x00(%[dst_ptr]) \n\t" + "gsswlc1 %[src1], 0x0b(%[dst_ptr]) \n\t" + "gsswrc1 %[src1], 0x08(%[dst_ptr]) \n\t" + + "daddiu %[src_ptr], %[src_ptr], 0x10 \n\t" + "daddi %[width], %[width], -0x0c \n\t" + "daddiu %[dst_ptr], %[dst_ptr], 0x0c \n\t" + "bnez %[width], 1b \n\t" + + : [src0]"=&f"(src[0]), [src1]"=&f"(src[1]), + [tmp0]"=&f"(tmp[0]), [tmp1]"=&f"(tmp[1]) + : [src_ptr]"r"(src_ptr), [dst_ptr]"r"(dst), + [lmov]"f"(0xc), [rmov]"f"(0x18), + [mask1]"f"(0xffff0000ffff), [rmov8]"f"(0x8), + [zero]"f"(0x0), [mask2]"f"(0xff000000), + [width]"r"(dst_width), [lmov1]"f"(0x10) + : "memory" + ); +} // clang-format on #endif // !defined(LIBYUV_DISABLE_MMI) && defined(_MIPS_ARCH_LOONGSON3A) |