; ; 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_scale_asm_offsets.asm AREA ||.text||, CODE, READONLY, ALIGN=2 ;void vp8_yv12_extend_frame_borders_neon (YV12_BUFFER_CONFIG *ybf); ; we depend on VP8BORDERINPIXELS being 32 |vp8_yv12_extend_frame_borders_neon| PROC push {r4 - r10, lr} vpush {d8 - d15} ; Border = 32 ldr r3, [r0, #yv12_buffer_config_y_width] ; plane_width ldr r1, [r0, #yv12_buffer_config_y_buffer] ; src_ptr1 ldr r4, [r0, #yv12_buffer_config_y_height] ; plane_height ldr lr, [r0, #yv12_buffer_config_y_stride] ; plane_stride ; Border copy for Y plane ; copy the left and right most columns out add r6, r1, r3 ; dest_ptr2 = src_ptr2 + 1 (src_ptr1 + plane_width) sub r2, r6, #1 ; src_ptr2 = src_ptr1 + plane_width - 1 sub r5, r1, #32 ; dest_ptr1 = src_ptr1 - Border mov r12, r4, lsr #2 ; plane_height / 4 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 r1, [r0, #yv12_buffer_config_y_buffer] ; y_buffer mul r8, r4, lr ; plane_height * plane_stride ; copy width is plane_stride movs r12, lr, lsr #7 ; plane_stride / 128 sub r1, r1, #32 ; src_ptr1 = y_buffer - Border add r6, r1, r8 ; dest_ptr2 = src_ptr2 - plane_stride (src_ptr1 + (plane_height * plane_stride)) sub r2, r6, lr ; src_ptr2 = src_ptr1 + (plane_height * plane_stride) - plane_stride sub r5, r1, lr, asl #5 ; dest_ptr1 = src_ptr1 - (Border * plane_stride) ble extra_y_copy_needed ; plane stride < 128 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, #32 ; Border 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 ; dest_ptr1 += plane_stride sub r5, r5, #128 ; dest_ptr1 -= 128 add r6, r6, lr ; dest_ptr2 += plane_stride sub r6, r6, #128 ; dest_ptr2 -= 128 bne top_bottom_32 sub r5, r1, lr, asl #5 ; src_ptr1 - (Border* plane_stride) add r6, r2, lr ; src_ptr2 + plane_stride subs r12, r12, #1 bne copy_top_bottom_y extra_y_copy_needed 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 ; Border = 16 ldr r7, [r0, #yv12_buffer_config_u_buffer] ; src_ptr1 ldr lr, [r0, #yv12_buffer_config_uv_stride] ; plane_stride ldr r3, [r0, #yv12_buffer_config_uv_width] ; plane_width ldr r4, [r0, #yv12_buffer_config_uv_height] ; plane_height mov r10, #2 ;copy the left and right most columns out border_copy_uv mov r1, r7 ; src_ptr1 needs to be saved for second half of loop sub r5, r1, #16 ; dest_ptr1 = src_ptr1 - Border add r6, r1, r3 ; dest_ptr2 = src_ptr2 + 1 (src_ptr1 + plane_width) sub r2, r6, #1 ; src_ptr2 = src_ptr1 + plane_width - 1 mov r12, r4, lsr #3 ; plane_height / 8 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 r1, r7 mul r8, r4, lr ; plane_height * plane_stride movs r12, lr, lsr #6 ; plane_stride / 64 sub r1, r1, #16 ; src_ptr1 = u_buffer - Border add r6, r1, r8 ; dest_ptr2 = src_ptr2 + plane_stride (src_ptr1 + (plane_height * plane_stride) sub r2, r6, lr ; src_ptr2 = src_ptr1 + (plane_height * plane_stride) - plane_stride sub r5, r1, lr, asl #4 ; dest_ptr1 = src_ptr1 - (Border * plane_stride) ble extra_uv_copy_needed ; plane_stride < 64 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, #16 ; Border 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 ; dest_ptr1 += plane_stride sub r5, r5, #64 add r6, r6, lr ; dest_ptr2 += plane_stride sub r6, r6, #64 bne top_bottom_16 sub r5, r1, lr, asl #4 ; dest_ptr1 = src_ptr1 - (Border * plane_stride) add r6, r2, lr ; dest_ptr2 = src_ptr2 + plane_stride subs r12, r12, #1 bne copy_top_bottom_uv extra_uv_copy_needed 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 r7, [r0, #yv12_buffer_config_v_buffer] ; src_ptr1 bne border_copy_uv vpop {d8 - d15} pop {r4 - r10, pc} ;;;;;;;;;;;;;;;;;;;;;; extra_top_bottom_y vld1.8 {q0}, [r1]! vld1.8 {q2}, [r2]! mov r9, #4 ; 32 >> 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, lr, asl #5 ; src_ptr1 - (Border * plane_stride) add r6, r2, lr ; src_ptr2 + plane_stride subs r7, r7, #1 bne extra_top_bottom_y b end_of_border_copy_y extra_top_bottom_uv vld1.8 {d0}, [r1]! vld1.8 {d8}, [r2]! mov r9, #2 ; 16 >> 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, lr, asl #4 ; src_ptr1 - (Border * plane_stride) add r6, r2, lr ; src_ptr2 + plane_stride subs r7, r7, #1 bne extra_top_bottom_uv b end_of_border_copy_uv ENDP END