| ; |
| ; 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 asm_com_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 |
