ref: cc675f9fd14f9fbde55ee0408adb9e4b0edc9ed3
dir: /codec/common/arm/expand_picture_neon.S/
/*! * \copy * Copyright (c) 2013, Cisco Systems * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * */ #ifdef HAVE_NEON #include "arm_arch_common_macro.S" WELS_ASM_FUNC_BEGIN ExpandPictureLuma_neon stmdb sp!, {r4-r8} //Save the dst mov r7, r0 mov r8, r3 add r4, r7, r2 sub r4, #1 //For the left and right expand _expand_picture_luma_loop2: sub r5, r7, #32 add r6, r4, #1 vld1.8 {d0[], d1[]}, [r7], r1 vld1.8 {d2[], d3[]}, [r4], r1 vst1.8 {q0}, [r5]! vst1.8 {q0}, [r5] vst1.8 {q1}, [r6]! vst1.8 {q1}, [r6] subs r8, #1 bne _expand_picture_luma_loop2 //for the top and bottom expand add r2, #64 sub r0, #32 mla r4, r1, r3, r0 sub r4, r1 _expand_picture_luma_loop0: mov r5, #32 mls r5, r5, r1, r0 add r6, r4, r1 vld1.8 {q0}, [r0]! vld1.8 {q1}, [r4]! mov r8, #32 _expand_picture_luma_loop1: vst1.8 {q0}, [r5], r1 vst1.8 {q1}, [r6], r1 subs r8, #1 bne _expand_picture_luma_loop1 subs r2, #16 bne _expand_picture_luma_loop0 //vldreq.32 d0, [r0] ldmia sp!, {r4-r8} WELS_ASM_FUNC_END WELS_ASM_FUNC_BEGIN ExpandPictureChroma_neon stmdb sp!, {r4-r9} //Save the dst mov r7, r0 mov r8, r3 add r4, r7, r2 sub r4, #1 //For the left and right expand _expand_picture_chroma_loop2: sub r5, r7, #16 add r6, r4, #1 vld1.8 {d0[], d1[]}, [r7], r1 vld1.8 {d2[], d3[]}, [r4], r1 vst1.8 {q0}, [r5] vst1.8 {q1}, [r6] subs r8, #1 bne _expand_picture_chroma_loop2 //for the top and bottom expand add r2, #32 mov r9, r2 bic r2, #15 sub r0, #16 mla r4, r1, r3, r0 sub r4, r1 _expand_picture_chroma_loop0: mov r5, #16 mls r5, r5, r1, r0 add r6, r4, r1 vld1.8 {q0}, [r0]! vld1.8 {q1}, [r4]! mov r8, #16 _expand_picture_chroma_loop1: vst1.8 {q0}, [r5], r1 vst1.8 {q1}, [r6], r1 subs r8, #1 bne _expand_picture_chroma_loop1 subs r2, #16 bne _expand_picture_chroma_loop0 //vldreq.32 d0, [r0] and r9, #15 cmp r9, #8 bne _expand_picture_chroma_end mov r5, #16 mls r5, r5, r1, r0 add r6, r4, r1 vld1.8 {d0}, [r0]! vld1.8 {d2}, [r4]! mov r8, #16 _expand_picture_chroma_loop3: vst1.8 {d0}, [r5], r1 vst1.8 {d2}, [r6], r1 subs r8, #1 bne _expand_picture_chroma_loop3 _expand_picture_chroma_end: ldmia sp!, {r4-r9} WELS_ASM_FUNC_END #endif