| ; |
| ; Copyright (c) 2010 The VP8 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_build_intra_predictors_mby_neon_func| |
| EXPORT |vp8_build_intra_predictors_mby_s_neon_func| |
| |
| ARM |
| REQUIRE8 |
| PRESERVE8 |
| |
| AREA ||.text||, CODE, READONLY, ALIGN=2 |
| ; r0 unsigned char *y_buffer |
| ; r1 unsigned char *ypred_ptr |
| ; r2 int y_stride |
| ; r3 int mode |
| ; stack int Up |
| ; stack int Left |
| |
| |vp8_build_intra_predictors_mby_neon_func| PROC |
| push {r4-r8, lr} |
| |
| cmp r3, #0 |
| beq case_dc_pred |
| cmp r3, #1 |
| beq case_v_pred |
| cmp r3, #2 |
| beq case_h_pred |
| cmp r3, #3 |
| beq case_tm_pred |
| |
| case_dc_pred |
| ldr r4, [sp, #24] ; Up |
| ldr r5, [sp, #28] ; Left |
| |
| ; Default the DC average to 128 |
| mov r12, #128 |
| vdup.u8 q0, r12 |
| |
| ; Zero out running sum |
| mov r12, #0 |
| |
| ; compute shift and jump |
| adds r7, r4, r5 |
| beq skip_dc_pred_up_left |
| |
| ; Load above row, if it exists |
| cmp r4, #0 |
| beq skip_dc_pred_up |
| |
| sub r6, r0, r2 |
| vld1.8 {q1}, [r6] |
| vpaddl.u8 q2, q1 |
| vpaddl.u16 q3, q2 |
| vpaddl.u32 q4, q3 |
| |
| vmov.32 r4, d8[0] |
| vmov.32 r6, d9[0] |
| |
| add r12, r4, r6 |
| |
| ; Move back to interger registers |
| |
| skip_dc_pred_up |
| |
| cmp r5, #0 |
| beq skip_dc_pred_left |
| |
| sub r0, r0, #1 |
| |
| ; Load left row, if it exists |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0], r2 |
| |
| add r12, r12, r3 |
| add r12, r12, r4 |
| add r12, r12, r5 |
| add r12, r12, r6 |
| |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0], r2 |
| |
| add r12, r12, r3 |
| add r12, r12, r4 |
| add r12, r12, r5 |
| add r12, r12, r6 |
| |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0], r2 |
| |
| add r12, r12, r3 |
| add r12, r12, r4 |
| add r12, r12, r5 |
| add r12, r12, r6 |
| |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0] |
| |
| add r12, r12, r3 |
| add r12, r12, r4 |
| add r12, r12, r5 |
| add r12, r12, r6 |
| |
| skip_dc_pred_left |
| add r7, r7, #3 ; Shift |
| sub r4, r7, #1 |
| mov r5, #1 |
| add r12, r12, r5, lsl r4 |
| mov r5, r12, lsr r7 ; expected_dc |
| |
| vdup.u8 q0, r5 |
| |
| skip_dc_pred_up_left |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| |
| pop {r4-r8,pc} |
| case_v_pred |
| ; Copy down above row |
| sub r6, r0, r2 |
| vld1.8 {q0}, [r6] |
| |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q0}, [r1]! |
| pop {r4-r8,pc} |
| |
| case_h_pred |
| ; Load 4x yleft_col |
| sub r0, r0, #1 |
| |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0], r2 |
| vdup.u8 q0, r3 |
| vdup.u8 q1, r4 |
| vdup.u8 q2, r5 |
| vdup.u8 q3, r6 |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q1}, [r1]! |
| vst1.u8 {q2}, [r1]! |
| vst1.u8 {q3}, [r1]! |
| |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0], r2 |
| vdup.u8 q0, r3 |
| vdup.u8 q1, r4 |
| vdup.u8 q2, r5 |
| vdup.u8 q3, r6 |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q1}, [r1]! |
| vst1.u8 {q2}, [r1]! |
| vst1.u8 {q3}, [r1]! |
| |
| |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0], r2 |
| vdup.u8 q0, r3 |
| vdup.u8 q1, r4 |
| vdup.u8 q2, r5 |
| vdup.u8 q3, r6 |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q1}, [r1]! |
| vst1.u8 {q2}, [r1]! |
| vst1.u8 {q3}, [r1]! |
| |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0], r2 |
| vdup.u8 q0, r3 |
| vdup.u8 q1, r4 |
| vdup.u8 q2, r5 |
| vdup.u8 q3, r6 |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q1}, [r1]! |
| vst1.u8 {q2}, [r1]! |
| vst1.u8 {q3}, [r1]! |
| |
| pop {r4-r8,pc} |
| |
| case_tm_pred |
| ; Load yabove_row |
| sub r3, r0, r2 |
| vld1.8 {q8}, [r3] |
| |
| ; Load ytop_left |
| sub r3, r3, #1 |
| ldrb r7, [r3] |
| |
| vdup.u16 q7, r7 |
| |
| ; Compute yabove_row - ytop_left |
| mov r3, #1 |
| vdup.u8 q0, r3 |
| |
| vmull.u8 q4, d16, d0 |
| vmull.u8 q5, d17, d0 |
| |
| vsub.s16 q4, q4, q7 |
| vsub.s16 q5, q5, q7 |
| |
| ; Load 4x yleft_col |
| sub r0, r0, #1 |
| mov r12, #4 |
| |
| case_tm_pred_loop |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0], r2 |
| vdup.u16 q0, r3 |
| vdup.u16 q1, r4 |
| vdup.u16 q2, r5 |
| vdup.u16 q3, r6 |
| |
| vqadd.s16 q8, q0, q4 |
| vqadd.s16 q9, q0, q5 |
| |
| vqadd.s16 q10, q1, q4 |
| vqadd.s16 q11, q1, q5 |
| |
| vqadd.s16 q12, q2, q4 |
| vqadd.s16 q13, q2, q5 |
| |
| vqadd.s16 q14, q3, q4 |
| vqadd.s16 q15, q3, q5 |
| |
| vqshrun.s16 d0, q8, #0 |
| vqshrun.s16 d1, q9, #0 |
| |
| vqshrun.s16 d2, q10, #0 |
| vqshrun.s16 d3, q11, #0 |
| |
| vqshrun.s16 d4, q12, #0 |
| vqshrun.s16 d5, q13, #0 |
| |
| vqshrun.s16 d6, q14, #0 |
| vqshrun.s16 d7, q15, #0 |
| |
| vst1.u8 {q0}, [r1]! |
| vst1.u8 {q1}, [r1]! |
| vst1.u8 {q2}, [r1]! |
| vst1.u8 {q3}, [r1]! |
| |
| subs r12, r12, #1 |
| bne case_tm_pred_loop |
| |
| pop {r4-r8,pc} |
| |
| ENDP |
| |
| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| ; r0 unsigned char *y_buffer |
| ; r1 unsigned char *ypred_ptr |
| ; r2 int y_stride |
| ; r3 int mode |
| ; stack int Up |
| ; stack int Left |
| |
| |vp8_build_intra_predictors_mby_s_neon_func| PROC |
| push {r4-r8, lr} |
| |
| mov r1, r0 ; unsigned char *ypred_ptr = x->dst.y_buffer; //x->Predictor; |
| |
| cmp r3, #0 |
| beq case_dc_pred_s |
| cmp r3, #1 |
| beq case_v_pred_s |
| cmp r3, #2 |
| beq case_h_pred_s |
| cmp r3, #3 |
| beq case_tm_pred_s |
| |
| case_dc_pred_s |
| ldr r4, [sp, #24] ; Up |
| ldr r5, [sp, #28] ; Left |
| |
| ; Default the DC average to 128 |
| mov r12, #128 |
| vdup.u8 q0, r12 |
| |
| ; Zero out running sum |
| mov r12, #0 |
| |
| ; compute shift and jump |
| adds r7, r4, r5 |
| beq skip_dc_pred_up_left_s |
| |
| ; Load above row, if it exists |
| cmp r4, #0 |
| beq skip_dc_pred_up_s |
| |
| sub r6, r0, r2 |
| vld1.8 {q1}, [r6] |
| vpaddl.u8 q2, q1 |
| vpaddl.u16 q3, q2 |
| vpaddl.u32 q4, q3 |
| |
| vmov.32 r4, d8[0] |
| vmov.32 r6, d9[0] |
| |
| add r12, r4, r6 |
| |
| ; Move back to interger registers |
| |
| skip_dc_pred_up_s |
| |
| cmp r5, #0 |
| beq skip_dc_pred_left_s |
| |
| sub r0, r0, #1 |
| |
| ; Load left row, if it exists |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0], r2 |
| |
| add r12, r12, r3 |
| add r12, r12, r4 |
| add r12, r12, r5 |
| add r12, r12, r6 |
| |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0], r2 |
| |
| add r12, r12, r3 |
| add r12, r12, r4 |
| add r12, r12, r5 |
| add r12, r12, r6 |
| |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0], r2 |
| |
| add r12, r12, r3 |
| add r12, r12, r4 |
| add r12, r12, r5 |
| add r12, r12, r6 |
| |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0] |
| |
| add r12, r12, r3 |
| add r12, r12, r4 |
| add r12, r12, r5 |
| add r12, r12, r6 |
| |
| skip_dc_pred_left_s |
| add r7, r7, #3 ; Shift |
| sub r4, r7, #1 |
| mov r5, #1 |
| add r12, r12, r5, lsl r4 |
| mov r5, r12, lsr r7 ; expected_dc |
| |
| vdup.u8 q0, r5 |
| |
| skip_dc_pred_up_left_s |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| |
| pop {r4-r8,pc} |
| case_v_pred_s |
| ; Copy down above row |
| sub r6, r0, r2 |
| vld1.8 {q0}, [r6] |
| |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q0}, [r1], r2 |
| pop {r4-r8,pc} |
| |
| case_h_pred_s |
| ; Load 4x yleft_col |
| sub r0, r0, #1 |
| |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0], r2 |
| vdup.u8 q0, r3 |
| vdup.u8 q1, r4 |
| vdup.u8 q2, r5 |
| vdup.u8 q3, r6 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q1}, [r1], r2 |
| vst1.u8 {q2}, [r1], r2 |
| vst1.u8 {q3}, [r1], r2 |
| |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0], r2 |
| vdup.u8 q0, r3 |
| vdup.u8 q1, r4 |
| vdup.u8 q2, r5 |
| vdup.u8 q3, r6 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q1}, [r1], r2 |
| vst1.u8 {q2}, [r1], r2 |
| vst1.u8 {q3}, [r1], r2 |
| |
| |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0], r2 |
| vdup.u8 q0, r3 |
| vdup.u8 q1, r4 |
| vdup.u8 q2, r5 |
| vdup.u8 q3, r6 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q1}, [r1], r2 |
| vst1.u8 {q2}, [r1], r2 |
| vst1.u8 {q3}, [r1], r2 |
| |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0], r2 |
| vdup.u8 q0, r3 |
| vdup.u8 q1, r4 |
| vdup.u8 q2, r5 |
| vdup.u8 q3, r6 |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q1}, [r1], r2 |
| vst1.u8 {q2}, [r1], r2 |
| vst1.u8 {q3}, [r1], r2 |
| |
| pop {r4-r8,pc} |
| |
| case_tm_pred_s |
| ; Load yabove_row |
| sub r3, r0, r2 |
| vld1.8 {q8}, [r3] |
| |
| ; Load ytop_left |
| sub r3, r3, #1 |
| ldrb r7, [r3] |
| |
| vdup.u16 q7, r7 |
| |
| ; Compute yabove_row - ytop_left |
| mov r3, #1 |
| vdup.u8 q0, r3 |
| |
| vmull.u8 q4, d16, d0 |
| vmull.u8 q5, d17, d0 |
| |
| vsub.s16 q4, q4, q7 |
| vsub.s16 q5, q5, q7 |
| |
| ; Load 4x yleft_col |
| sub r0, r0, #1 |
| mov r12, #4 |
| |
| case_tm_pred_loop_s |
| ldrb r3, [r0], r2 |
| ldrb r4, [r0], r2 |
| ldrb r5, [r0], r2 |
| ldrb r6, [r0], r2 |
| vdup.u16 q0, r3 |
| vdup.u16 q1, r4 |
| vdup.u16 q2, r5 |
| vdup.u16 q3, r6 |
| |
| vqadd.s16 q8, q0, q4 |
| vqadd.s16 q9, q0, q5 |
| |
| vqadd.s16 q10, q1, q4 |
| vqadd.s16 q11, q1, q5 |
| |
| vqadd.s16 q12, q2, q4 |
| vqadd.s16 q13, q2, q5 |
| |
| vqadd.s16 q14, q3, q4 |
| vqadd.s16 q15, q3, q5 |
| |
| vqshrun.s16 d0, q8, #0 |
| vqshrun.s16 d1, q9, #0 |
| |
| vqshrun.s16 d2, q10, #0 |
| vqshrun.s16 d3, q11, #0 |
| |
| vqshrun.s16 d4, q12, #0 |
| vqshrun.s16 d5, q13, #0 |
| |
| vqshrun.s16 d6, q14, #0 |
| vqshrun.s16 d7, q15, #0 |
| |
| vst1.u8 {q0}, [r1], r2 |
| vst1.u8 {q1}, [r1], r2 |
| vst1.u8 {q2}, [r1], r2 |
| vst1.u8 {q3}, [r1], r2 |
| |
| subs r12, r12, #1 |
| bne case_tm_pred_loop_s |
| |
| pop {r4-r8,pc} |
| |
| ENDP |
| |
| |
| END |
