| ; |
| ; 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_copy_src_frame_func_neon| |
| ARM |
| REQUIRE8 |
| PRESERVE8 |
| |
| INCLUDE vpx_scale_asm_offsets.asm |
| |
| AREA ||.text||, CODE, READONLY, ALIGN=2 |
| ;Note: This function is used to copy source data in src_buffer[i] at beginning of |
| ;the encoding. The buffer has a width and height of cpi->oxcf.Width and cpi->oxcf.Height, |
| ;which can be ANY numbers(NOT always multiples of 16 or 4). |
| |
| ;void vp8_yv12_copy_src_frame_func_neon(YV12_BUFFER_CONFIG *src_ybc, YV12_BUFFER_CONFIG *dst_ybc); |
| |
| |vp8_yv12_copy_src_frame_func_neon| PROC |
| push {r4 - r11, lr} |
| vpush {d8 - d15} |
| |
| ;Copy Y plane |
| ldr r4, [r0, #yv12_buffer_config_y_height] |
| ldr r5, [r0, #yv12_buffer_config_y_width] |
| ldr r6, [r0, #yv12_buffer_config_y_stride] |
| ldr r7, [r1, #yv12_buffer_config_y_stride] |
| ldr r2, [r0, #yv12_buffer_config_y_buffer] ;srcptr1 |
| ldr r3, [r1, #yv12_buffer_config_y_buffer] ;dstptr1 |
| |
| add r10, r2, r6 ;second row src |
| add r11, r3, r7 ;second row dst |
| mov r6, r6, lsl #1 |
| mov r7, r7, lsl #1 |
| sub r6, r6, r5 ;adjust stride |
| sub r7, r7, r5 |
| |
| ; copy two rows at one time |
| mov lr, r4, lsr #1 |
| |
| cp_src_to_dst_height_loop |
| mov r12, r5 |
| |
| cp_width_128_loop |
| vld1.8 {q0, q1}, [r2]! |
| vld1.8 {q4, q5}, [r10]! |
| vld1.8 {q2, q3}, [r2]! |
| vld1.8 {q6, q7}, [r10]! |
| vld1.8 {q8, q9}, [r2]! |
| vld1.8 {q12, q13}, [r10]! |
| vld1.8 {q10, q11}, [r2]! |
| vld1.8 {q14, q15}, [r10]! |
| sub r12, r12, #128 |
| cmp r12, #128 |
| vst1.8 {q0, q1}, [r3]! |
| vst1.8 {q4, q5}, [r11]! |
| vst1.8 {q2, q3}, [r3]! |
| vst1.8 {q6, q7}, [r11]! |
| vst1.8 {q8, q9}, [r3]! |
| vst1.8 {q12, q13}, [r11]! |
| vst1.8 {q10, q11}, [r3]! |
| vst1.8 {q14, q15}, [r11]! |
| bhs cp_width_128_loop |
| |
| cmp r12, #0 |
| beq cp_width_done |
| |
| cp_width_8_loop |
| vld1.8 {d0}, [r2]! |
| vld1.8 {d1}, [r10]! |
| sub r12, r12, #8 |
| cmp r12, #8 |
| vst1.8 {d0}, [r3]! |
| vst1.8 {d1}, [r11]! |
| bhs cp_width_8_loop |
| |
| cmp r12, #0 |
| beq cp_width_done |
| |
| cp_width_1_loop |
| ldrb r8, [r2], #1 |
| subs r12, r12, #1 |
| strb r8, [r3], #1 |
| ldrb r8, [r10], #1 |
| strb r8, [r11], #1 |
| bne cp_width_1_loop |
| |
| cp_width_done |
| subs lr, lr, #1 |
| add r2, r2, r6 |
| add r3, r3, r7 |
| add r10, r10, r6 |
| add r11, r11, r7 |
| bne cp_src_to_dst_height_loop |
| |
| ;copy last line for Y if y_height is odd |
| tst r4, #1 |
| beq cp_width_done_1 |
| mov r12, r5 |
| |
| cp_width_128_loop_1 |
| vld1.8 {q0, q1}, [r2]! |
| vld1.8 {q2, q3}, [r2]! |
| vld1.8 {q8, q9}, [r2]! |
| vld1.8 {q10, q11}, [r2]! |
| sub r12, r12, #128 |
| cmp r12, #128 |
| vst1.8 {q0, q1}, [r3]! |
| vst1.8 {q2, q3}, [r3]! |
| vst1.8 {q8, q9}, [r3]! |
| vst1.8 {q10, q11}, [r3]! |
| bhs cp_width_128_loop_1 |
| |
| cmp r12, #0 |
| beq cp_width_done_1 |
| |
| cp_width_8_loop_1 |
| vld1.8 {d0}, [r2]! |
| sub r12, r12, #8 |
| cmp r12, #8 |
| vst1.8 {d0}, [r3]! |
| bhs cp_width_8_loop_1 |
| |
| cmp r12, #0 |
| beq cp_width_done_1 |
| |
| cp_width_1_loop_1 |
| ldrb r8, [r2], #1 |
| subs r12, r12, #1 |
| strb r8, [r3], #1 |
| bne cp_width_1_loop_1 |
| cp_width_done_1 |
| |
| ;Copy U & V planes |
| ldr r4, [r0, #yv12_buffer_config_uv_height] |
| ldr r5, [r0, #yv12_buffer_config_uv_width] |
| ldr r6, [r0, #yv12_buffer_config_uv_stride] |
| ldr r7, [r1, #yv12_buffer_config_uv_stride] |
| ldr r2, [r0, #yv12_buffer_config_u_buffer] ;srcptr1 |
| ldr r3, [r1, #yv12_buffer_config_u_buffer] ;dstptr1 |
| |
| add r10, r2, r6 ;second row src |
| add r11, r3, r7 ;second row dst |
| mov r6, r6, lsl #1 |
| mov r7, r7, lsl #1 |
| sub r6, r6, r5 ;adjust stride |
| sub r7, r7, r5 |
| |
| mov r9, #2 |
| |
| cp_uv_loop |
| ;copy two rows at one time |
| mov lr, r4, lsr #1 |
| |
| cp_src_to_dst_height_uv_loop |
| mov r12, r5 |
| |
| cp_width_uv_64_loop |
| vld1.8 {q0, q1}, [r2]! |
| vld1.8 {q4, q5}, [r10]! |
| vld1.8 {q2, q3}, [r2]! |
| vld1.8 {q6, q7}, [r10]! |
| sub r12, r12, #64 |
| cmp r12, #64 |
| vst1.8 {q0, q1}, [r3]! |
| vst1.8 {q4, q5}, [r11]! |
| vst1.8 {q2, q3}, [r3]! |
| vst1.8 {q6, q7}, [r11]! |
| bhs cp_width_uv_64_loop |
| |
| cmp r12, #0 |
| beq cp_width_uv_done |
| |
| cp_width_uv_8_loop |
| vld1.8 {d0}, [r2]! |
| vld1.8 {d1}, [r10]! |
| sub r12, r12, #8 |
| cmp r12, #8 |
| vst1.8 {d0}, [r3]! |
| vst1.8 {d1}, [r11]! |
| bhs cp_width_uv_8_loop |
| |
| cmp r12, #0 |
| beq cp_width_uv_done |
| |
| cp_width_uv_1_loop |
| ldrb r8, [r2], #1 |
| subs r12, r12, #1 |
| strb r8, [r3], #1 |
| ldrb r8, [r10], #1 |
| strb r8, [r11], #1 |
| bne cp_width_uv_1_loop |
| |
| cp_width_uv_done |
| subs lr, lr, #1 |
| add r2, r2, r6 |
| add r3, r3, r7 |
| add r10, r10, r6 |
| add r11, r11, r7 |
| bne cp_src_to_dst_height_uv_loop |
| |
| ;copy last line for U & V if uv_height is odd |
| tst r4, #1 |
| beq cp_width_uv_done_1 |
| mov r12, r5 |
| |
| cp_width_uv_64_loop_1 |
| vld1.8 {q0, q1}, [r2]! |
| vld1.8 {q2, q3}, [r2]! |
| sub r12, r12, #64 |
| cmp r12, #64 |
| vst1.8 {q0, q1}, [r3]! |
| vst1.8 {q2, q3}, [r3]! |
| bhs cp_width_uv_64_loop_1 |
| |
| cmp r12, #0 |
| beq cp_width_uv_done_1 |
| |
| cp_width_uv_8_loop_1 |
| vld1.8 {d0}, [r2]! |
| sub r12, r12, #8 |
| cmp r12, #8 |
| vst1.8 {d0}, [r3]! |
| bhs cp_width_uv_8_loop_1 |
| |
| cmp r12, #0 |
| beq cp_width_uv_done_1 |
| |
| cp_width_uv_1_loop_1 |
| ldrb r8, [r2], #1 |
| subs r12, r12, #1 |
| strb r8, [r3], #1 |
| bne cp_width_uv_1_loop_1 |
| cp_width_uv_done_1 |
| |
| subs r9, r9, #1 |
| ldrne r2, [r0, #yv12_buffer_config_v_buffer] ;srcptr1 |
| ldrne r3, [r1, #yv12_buffer_config_v_buffer] ;dstptr1 |
| ldrne r10, [r0, #yv12_buffer_config_uv_stride] |
| ldrne r11, [r1, #yv12_buffer_config_uv_stride] |
| |
| addne r10, r2, r10 ;second row src |
| addne r11, r3, r11 ;second row dst |
| |
| bne cp_uv_loop |
| |
| vpop {d8 - d15} |
| pop {r4 - r11, pc} |
| |
| ENDP |
| END |
