; ; Copyright (c) 2010 The WebM 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. ; EXPORT |vp8_yv12_extend_frame_borders_neon| ARM REQUIRE8 PRESERVE8 INCLUDE vpx_asm_offsets.asm AREA ||.text||, CODE, READONLY, ALIGN=2 ;void vp8_yv12_extend_frame_borders_neon (YV12_BUFFER_CONFIG *ybf); ;Note: this is VP8 function, which has border=32 and 16. Internal y_width and y_height ; are always multiples of 16. |vp8_yv12_extend_frame_borders_neon| PROC push {r4 - r10, lr} vpush {d8 - d15} ;Not need to load y_width, since: y_width = y_stride - 2*border ldr r3, [r0, #yv12_buffer_config_border] ldr r1, [r0, #yv12_buffer_config_y_buffer] ;srcptr1 ldr r4, [r0, #yv12_buffer_config_y_height] ldr lr, [r0, #yv12_buffer_config_y_stride] cmp r3, #16 beq b16_extend_frame_borders ;======================= b32_extend_frame_borders ;border = 32 ;======================= ;Border copy for Y plane ;copy the left and right most columns out sub r5, r1, r3 ;destptr1 add r6, r1, lr sub r6, r6, r3, lsl #1 ;destptr2 sub r2, r6, #1 ;srcptr2 ;Do four rows at one time mov r12, r4, lsr #2 copy_left_right_y vld1.8 {d0[], d1[]}, [r1], lr vld1.8 {d4[], d5[]}, [r2], lr vld1.8 {d8[], d9[]}, [r1], lr vld1.8 {d12[], d13[]}, [r2], lr vld1.8 {d16[], d17[]}, [r1], lr vld1.8 {d20[], d21[]}, [r2], lr vld1.8 {d24[], d25[]}, [r1], lr vld1.8 {d28[], d29[]}, [r2], lr vmov q1, q0 vmov q3, q2 vmov q5, q4 vmov q7, q6 vmov q9, q8 vmov q11, q10 vmov q13, q12 vmov q15, q14 subs r12, r12, #1 vst1.8 {q0, q1}, [r5], lr vst1.8 {q2, q3}, [r6], lr vst1.8 {q4, q5}, [r5], lr vst1.8 {q6, q7}, [r6], lr vst1.8 {q8, q9}, [r5], lr vst1.8 {q10, q11}, [r6], lr vst1.8 {q12, q13}, [r5], lr vst1.8 {q14, q15}, [r6], lr bne copy_left_right_y ;Now copy the top and bottom source lines into each line of the respective borders ldr r7, [r0, #yv12_buffer_config_y_buffer] ;srcptr1 mul r8, r3, lr mov r12, lr, lsr #7 sub r6, r1, r3 ;destptr2 sub r2, r6, lr ;srcptr2 sub r1, r7, r3 ;srcptr1 sub r5, r1, r8 ;destptr1 copy_top_bottom_y vld1.8 {q0, q1}, [r1]! vld1.8 {q8, q9}, [r2]! vld1.8 {q2, q3}, [r1]! vld1.8 {q10, q11}, [r2]! vld1.8 {q4, q5}, [r1]! vld1.8 {q12, q13}, [r2]! vld1.8 {q6, q7}, [r1]! vld1.8 {q14, q15}, [r2]! mov r7, r3 top_bottom_32 subs r7, r7, #1 vst1.8 {q0, q1}, [r5]! vst1.8 {q8, q9}, [r6]! vst1.8 {q2, q3}, [r5]! vst1.8 {q10, q11}, [r6]! vst1.8 {q4, q5}, [r5]! vst1.8 {q12, q13}, [r6]! vst1.8 {q6, q7}, [r5]! vst1.8 {q14, q15}, [r6]! add r5, r5, lr sub r5, r5, #128 add r6, r6, lr sub r6, r6, #128 bne top_bottom_32 sub r5, r1, r8 add r6, r2, lr subs r12, r12, #1 bne copy_top_bottom_y mov r7, lr, lsr #4 ;check to see if extra copy is needed ands r7, r7, #0x7 bne extra_top_bottom_y end_of_border_copy_y ;Border copy for U, V planes ldr r1, [r0, #yv12_buffer_config_u_buffer] ;srcptr1 mov lr, lr, lsr #1 ;uv_stride mov r3, r3, lsr #1 ;border mov r4, r4, lsr #1 ;uv_height mov r8, r8, lsr #2 mov r10, #2 ;copy the left and right most columns out border_copy_uv sub r5, r1, r3 ;destptr1 add r6, r1, lr sub r6, r6, r3, lsl #1 ;destptr2 sub r2, r6, #1 ;srcptr2 mov r7, r1 ;Do eight rows at one time mov r12, r4, lsr #3 copy_left_right_uv vld1.8 {d0[], d1[]}, [r1], lr vld1.8 {d2[], d3[]}, [r2], lr vld1.8 {d4[], d5[]}, [r1], lr vld1.8 {d6[], d7[]}, [r2], lr vld1.8 {d8[], d9[]}, [r1], lr vld1.8 {d10[], d11[]}, [r2], lr vld1.8 {d12[], d13[]}, [r1], lr vld1.8 {d14[], d15[]}, [r2], lr vld1.8 {d16[], d17[]}, [r1], lr vld1.8 {d18[], d19[]}, [r2], lr vld1.8 {d20[], d21[]}, [r1], lr vld1.8 {d22[], d23[]}, [r2], lr vld1.8 {d24[], d25[]}, [r1], lr vld1.8 {d26[], d27[]}, [r2], lr vld1.8 {d28[], d29[]}, [r1], lr vld1.8 {d30[], d31[]}, [r2], lr subs r12, r12, #1 vst1.8 {q0}, [r5], lr vst1.8 {q1}, [r6], lr vst1.8 {q2}, [r5], lr vst1.8 {q3}, [r6], lr vst1.8 {q4}, [r5], lr vst1.8 {q5}, [r6], lr vst1.8 {q6}, [r5], lr vst1.8 {q7}, [r6], lr vst1.8 {q8}, [r5], lr vst1.8 {q9}, [r6], lr vst1.8 {q10}, [r5], lr vst1.8 {q11}, [r6], lr vst1.8 {q12}, [r5], lr vst1.8 {q13}, [r6], lr vst1.8 {q14}, [r5], lr vst1.8 {q15}, [r6], lr bne copy_left_right_uv ;Now copy the top and bottom source lines into each line of the respective borders mov r12, lr, lsr #6 sub r6, r1, r3 ;destptr2 sub r2, r6, lr ;srcptr2 sub r1, r7, r3 ;srcptr1 sub r5, r1, r8 ;destptr1 copy_top_bottom_uv vld1.8 {q0, q1}, [r1]! vld1.8 {q8, q9}, [r2]! vld1.8 {q2, q3}, [r1]! vld1.8 {q10, q11}, [r2]! mov r7, r3 top_bottom_16 subs r7, r7, #1 vst1.8 {q0, q1}, [r5]! vst1.8 {q8, q9}, [r6]! vst1.8 {q2, q3}, [r5]! vst1.8 {q10, q11}, [r6]! add r5, r5, lr sub r5, r5, #64 add r6, r6, lr sub r6, r6, #64 bne top_bottom_16 sub r5, r1, r8 add r6, r2, lr subs r12, r12, #1 bne copy_top_bottom_uv mov r7, lr, lsr #3 ;check to see if extra copy is needed ands r7, r7, #0x7 bne extra_top_bottom_uv end_of_border_copy_uv subs r10, r10, #1 ldrne r1, [r0, #yv12_buffer_config_v_buffer] ;srcptr1 bne border_copy_uv vpop {d8 - d15} pop {r4 - r10, pc} ;;;;;;;;;;;;;;;;;;;;;; ;extra copy part for Y extra_top_bottom_y vld1.8 {q0}, [r1]! vld1.8 {q2}, [r2]! mov r9, r3, lsr #3 extra_top_bottom_32 subs r9, r9, #1 vst1.8 {q0}, [r5], lr vst1.8 {q2}, [r6], lr vst1.8 {q0}, [r5], lr vst1.8 {q2}, [r6], lr vst1.8 {q0}, [r5], lr vst1.8 {q2}, [r6], lr vst1.8 {q0}, [r5], lr vst1.8 {q2}, [r6], lr vst1.8 {q0}, [r5], lr vst1.8 {q2}, [r6], lr vst1.8 {q0}, [r5], lr vst1.8 {q2}, [r6], lr vst1.8 {q0}, [r5], lr vst1.8 {q2}, [r6], lr vst1.8 {q0}, [r5], lr vst1.8 {q2}, [r6], lr bne extra_top_bottom_32 sub r5, r1, r8 add r6, r2, lr subs r7, r7, #1 bne extra_top_bottom_y b end_of_border_copy_y ;extra copy part for UV extra_top_bottom_uv vld1.8 {d0}, [r1]! vld1.8 {d8}, [r2]! mov r9, r3, lsr #3 extra_top_bottom_16 subs r9, r9, #1 vst1.8 {d0}, [r5], lr vst1.8 {d8}, [r6], lr vst1.8 {d0}, [r5], lr vst1.8 {d8}, [r6], lr vst1.8 {d0}, [r5], lr vst1.8 {d8}, [r6], lr vst1.8 {d0}, [r5], lr vst1.8 {d8}, [r6], lr vst1.8 {d0}, [r5], lr vst1.8 {d8}, [r6], lr vst1.8 {d0}, [r5], lr vst1.8 {d8}, [r6], lr vst1.8 {d0}, [r5], lr vst1.8 {d8}, [r6], lr vst1.8 {d0}, [r5], lr vst1.8 {d8}, [r6], lr bne extra_top_bottom_16 sub r5, r1, r8 add r6, r2, lr subs r7, r7, #1 bne extra_top_bottom_uv b end_of_border_copy_uv ;======================= b16_extend_frame_borders ;border = 16 ;======================= ;Border copy for Y plane ;copy the left and right most columns out sub r5, r1, r3 ;destptr1 add r6, r1, lr sub r6, r6, r3, lsl #1 ;destptr2 sub r2, r6, #1 ;srcptr2 ;Do four rows at one time mov r12, r4, lsr #2 copy_left_right_y_b16 vld1.8 {d0[], d1[]}, [r1], lr vld1.8 {d4[], d5[]}, [r2], lr vld1.8 {d8[], d9[]}, [r1], lr vld1.8 {d12[], d13[]}, [r2], lr vld1.8 {d16[], d17[]}, [r1], lr vld1.8 {d20[], d21[]}, [r2], lr vld1.8 {d24[], d25[]}, [r1], lr vld1.8 {d28[], d29[]}, [r2], lr subs r12, r12, #1 vst1.8 {q0}, [r5], lr vst1.8 {q2}, [r6], lr vst1.8 {q4}, [r5], lr vst1.8 {q6}, [r6], lr vst1.8 {q8}, [r5], lr vst1.8 {q10}, [r6], lr vst1.8 {q12}, [r5], lr vst1.8 {q14}, [r6], lr bne copy_left_right_y_b16 ;Now copy the top and bottom source lines into each line of the respective borders ldr r7, [r0, #yv12_buffer_config_y_buffer] ;srcptr1 mul r8, r3, lr mov r12, lr, lsr #7 sub r6, r1, r3 ;destptr2 sub r2, r6, lr ;srcptr2 sub r1, r7, r3 ;srcptr1 sub r5, r1, r8 ;destptr1 copy_top_bottom_y_b16 vld1.8 {q0, q1}, [r1]! vld1.8 {q8, q9}, [r2]! vld1.8 {q2, q3}, [r1]! vld1.8 {q10, q11}, [r2]! vld1.8 {q4, q5}, [r1]! vld1.8 {q12, q13}, [r2]! vld1.8 {q6, q7}, [r1]! vld1.8 {q14, q15}, [r2]! mov r7, r3 top_bottom_16_b16 subs r7, r7, #1 vst1.8 {q0, q1}, [r5]! vst1.8 {q8, q9}, [r6]! vst1.8 {q2, q3}, [r5]! vst1.8 {q10, q11}, [r6]! vst1.8 {q4, q5}, [r5]! vst1.8 {q12, q13}, [r6]! vst1.8 {q6, q7}, [r5]! vst1.8 {q14, q15}, [r6]! add r5, r5, lr sub r5, r5, #128 add r6, r6, lr sub r6, r6, #128 bne top_bottom_16_b16 sub r5, r1, r8 add r6, r2, lr subs r12, r12, #1 bne copy_top_bottom_y_b16 mov r7, lr, lsr #4 ;check to see if extra copy is needed ands r7, r7, #0x7 bne extra_top_bottom_y_b16 end_of_border_copy_y_b16 ;Border copy for U, V planes ldr r1, [r0, #yv12_buffer_config_u_buffer] ;srcptr1 mov lr, lr, lsr #1 ;uv_stride mov r3, r3, lsr #1 ;border mov r4, r4, lsr #1 ;uv_height mov r8, r8, lsr #2 mov r10, #2 ;copy the left and right most columns out border_copy_uv_b16 sub r5, r1, r3 ;destptr1 add r6, r1, lr sub r6, r6, r3, lsl #1 ;destptr2 sub r2, r6, #1 ;srcptr2 mov r7, r1 ;Do eight rows at one time mov r12, r4, lsr #3 copy_left_right_uv_b16 vld1.8 {d0[]}, [r1], lr vld1.8 {d2[]}, [r2], lr vld1.8 {d4[]}, [r1], lr vld1.8 {d6[]}, [r2], lr vld1.8 {d8[]}, [r1], lr vld1.8 {d10[]}, [r2], lr vld1.8 {d12[]}, [r1], lr vld1.8 {d14[]}, [r2], lr vld1.8 {d16[]}, [r1], lr vld1.8 {d18[]}, [r2], lr vld1.8 {d20[]}, [r1], lr vld1.8 {d22[]}, [r2], lr vld1.8 {d24[]}, [r1], lr vld1.8 {d26[]}, [r2], lr vld1.8 {d28[]}, [r1], lr vld1.8 {d30[]}, [r2], lr subs r12, r12, #1 vst1.8 {d0}, [r5], lr vst1.8 {d2}, [r6], lr vst1.8 {d4}, [r5], lr vst1.8 {d6}, [r6], lr vst1.8 {d8}, [r5], lr vst1.8 {d10}, [r6], lr vst1.8 {d12}, [r5], lr vst1.8 {d14}, [r6], lr vst1.8 {d16}, [r5], lr vst1.8 {d18}, [r6], lr vst1.8 {d20}, [r5], lr vst1.8 {d22}, [r6], lr vst1.8 {d24}, [r5], lr vst1.8 {d26}, [r6], lr vst1.8 {d28}, [r5], lr vst1.8 {d30}, [r6], lr bne copy_left_right_uv_b16 ;Now copy the top and bottom source lines into each line of the respective borders mov r12, lr, lsr #6 sub r6, r1, r3 ;destptr2 sub r2, r6, lr ;srcptr2 sub r1, r7, r3 ;srcptr1 sub r5, r1, r8 ;destptr1 copy_top_bottom_uv_b16 vld1.8 {q0, q1}, [r1]! vld1.8 {q8, q9}, [r2]! vld1.8 {q2, q3}, [r1]! vld1.8 {q10, q11}, [r2]! mov r7, r3 top_bottom_8_b16 subs r7, r7, #1 vst1.8 {q0, q1}, [r5]! vst1.8 {q8, q9}, [r6]! vst1.8 {q2, q3}, [r5]! vst1.8 {q10, q11}, [r6]! add r5, r5, lr sub r5, r5, #64 add r6, r6, lr sub r6, r6, #64 bne top_bottom_8_b16 sub r5, r1, r8 add r6, r2, lr subs r12, r12, #1 bne copy_top_bottom_uv_b16 mov r7, lr, lsr #3 ;check to see if extra copy is needed ands r7, r7, #0x7 bne extra_top_bottom_uv_b16 end_of_border_copy_uv_b16 subs r10, r10, #1 ldrne r1, [r0, #yv12_buffer_config_v_buffer] ;srcptr1 bne border_copy_uv_b16 vpop {d8-d15} pop {r4 - r10, pc} ;;;;;;;;;;;;;;;;;;;;;; ;extra copy part for Y extra_top_bottom_y_b16 vld1.8 {q0}, [r1]! vld1.8 {q2}, [r2]! mov r9, r3, lsr #3 extra_top_bottom_16_b16 subs r9, r9, #1 vst1.8 {q0}, [r5], lr vst1.8 {q2}, [r6], lr vst1.8 {q0}, [r5], lr vst1.8 {q2}, [r6], lr vst1.8 {q0}, [r5], lr vst1.8 {q2}, [r6], lr vst1.8 {q0}, [r5], lr vst1.8 {q2}, [r6], lr vst1.8 {q0}, [r5], lr vst1.8 {q2}, [r6], lr vst1.8 {q0}, [r5], lr vst1.8 {q2}, [r6], lr vst1.8 {q0}, [r5], lr vst1.8 {q2}, [r6], lr vst1.8 {q0}, [r5], lr vst1.8 {q2}, [r6], lr bne extra_top_bottom_16_b16 sub r5, r1, r8 add r6, r2, lr subs r7, r7, #1 bne extra_top_bottom_y_b16 b end_of_border_copy_y_b16 ;extra copy part for UV extra_top_bottom_uv_b16 vld1.8 {d0}, [r1]! vld1.8 {d8}, [r2]! mov r9, r3, lsr #3 extra_top_bottom_8_b16 subs r9, r9, #1 vst1.8 {d0}, [r5], lr vst1.8 {d8}, [r6], lr vst1.8 {d0}, [r5], lr vst1.8 {d8}, [r6], lr vst1.8 {d0}, [r5], lr vst1.8 {d8}, [r6], lr vst1.8 {d0}, [r5], lr vst1.8 {d8}, [r6], lr vst1.8 {d0}, [r5], lr vst1.8 {d8}, [r6], lr vst1.8 {d0}, [r5], lr vst1.8 {d8}, [r6], lr vst1.8 {d0}, [r5], lr vst1.8 {d8}, [r6], lr vst1.8 {d0}, [r5], lr vst1.8 {d8}, [r6], lr bne extra_top_bottom_8_b16 sub r5, r1, r8 add r6, r2, lr subs r7, r7, #1 bne extra_top_bottom_uv_b16 b end_of_border_copy_uv_b16 ENDP END