+++ /dev/null
-;
-; 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(const 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
projects / platform / upstream / libvpx.git / commitdiff