309 lines
11 KiB
NASM
309 lines
11 KiB
NASM
;
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; Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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;
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; Use of this source code is governed by a BSD-style license
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; that can be found in the LICENSE file in the root of the source
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; tree. An additional intellectual property rights grant can be found
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; in the file PATENTS. All contributing project authors may
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; be found in the AUTHORS file in the root of the source tree.
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;
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EXPORT |vp8_yv12_extend_frame_borders_neon|
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ARM
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REQUIRE8
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PRESERVE8
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INCLUDE vpx_scale_asm_offsets.asm
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AREA ||.text||, CODE, READONLY, ALIGN=2
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;void vp8_yv12_extend_frame_borders_neon (YV12_BUFFER_CONFIG *ybf);
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; we depend on VP8BORDERINPIXELS being 32
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|vp8_yv12_extend_frame_borders_neon| PROC
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push {r4 - r10, lr}
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vpush {d8 - d15}
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; Border = 32
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ldr r3, [r0, #yv12_buffer_config_y_width] ; plane_width
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ldr r1, [r0, #yv12_buffer_config_y_buffer] ; src_ptr1
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ldr r4, [r0, #yv12_buffer_config_y_height] ; plane_height
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ldr lr, [r0, #yv12_buffer_config_y_stride] ; plane_stride
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; Border copy for Y plane
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; copy the left and right most columns out
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add r6, r1, r3 ; dest_ptr2 = src_ptr2 + 1 (src_ptr1 + plane_width)
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sub r2, r6, #1 ; src_ptr2 = src_ptr1 + plane_width - 1
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sub r5, r1, #32 ; dest_ptr1 = src_ptr1 - Border
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mov r12, r4, lsr #2 ; plane_height / 4
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copy_left_right_y
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vld1.8 {d0[], d1[]}, [r1], lr
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vld1.8 {d4[], d5[]}, [r2], lr
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vld1.8 {d8[], d9[]}, [r1], lr
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vld1.8 {d12[], d13[]}, [r2], lr
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vld1.8 {d16[], d17[]}, [r1], lr
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vld1.8 {d20[], d21[]}, [r2], lr
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vld1.8 {d24[], d25[]}, [r1], lr
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vld1.8 {d28[], d29[]}, [r2], lr
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vmov q1, q0
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vmov q3, q2
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vmov q5, q4
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vmov q7, q6
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vmov q9, q8
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vmov q11, q10
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vmov q13, q12
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vmov q15, q14
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subs r12, r12, #1
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vst1.8 {q0, q1}, [r5], lr
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vst1.8 {q2, q3}, [r6], lr
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vst1.8 {q4, q5}, [r5], lr
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vst1.8 {q6, q7}, [r6], lr
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vst1.8 {q8, q9}, [r5], lr
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vst1.8 {q10, q11}, [r6], lr
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vst1.8 {q12, q13}, [r5], lr
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vst1.8 {q14, q15}, [r6], lr
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bne copy_left_right_y
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;Now copy the top and bottom source lines into each line of the respective borders
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ldr r1, [r0, #yv12_buffer_config_y_buffer] ; y_buffer
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mul r8, r4, lr ; plane_height * plane_stride
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; copy width is plane_stride
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movs r12, lr, lsr #7 ; plane_stride / 128
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sub r1, r1, #32 ; src_ptr1 = y_buffer - Border
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add r6, r1, r8 ; dest_ptr2 = src_ptr2 - plane_stride (src_ptr1 + (plane_height * plane_stride))
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sub r2, r6, lr ; src_ptr2 = src_ptr1 + (plane_height * plane_stride) - plane_stride
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sub r5, r1, lr, asl #5 ; dest_ptr1 = src_ptr1 - (Border * plane_stride)
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ble extra_y_copy_needed ; plane stride < 128
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copy_top_bottom_y
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vld1.8 {q0, q1}, [r1]!
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vld1.8 {q8, q9}, [r2]!
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vld1.8 {q2, q3}, [r1]!
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vld1.8 {q10, q11}, [r2]!
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vld1.8 {q4, q5}, [r1]!
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vld1.8 {q12, q13}, [r2]!
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vld1.8 {q6, q7}, [r1]!
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vld1.8 {q14, q15}, [r2]!
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mov r7, #32 ; Border
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top_bottom_32
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subs r7, r7, #1
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vst1.8 {q0, q1}, [r5]!
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vst1.8 {q8, q9}, [r6]!
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vst1.8 {q2, q3}, [r5]!
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vst1.8 {q10, q11}, [r6]!
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vst1.8 {q4, q5}, [r5]!
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vst1.8 {q12, q13}, [r6]!
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vst1.8 {q6, q7}, [r5]!
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vst1.8 {q14, q15}, [r6]!
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add r5, r5, lr ; dest_ptr1 += plane_stride
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sub r5, r5, #128 ; dest_ptr1 -= 128
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add r6, r6, lr ; dest_ptr2 += plane_stride
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sub r6, r6, #128 ; dest_ptr2 -= 128
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bne top_bottom_32
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sub r5, r1, lr, asl #5 ; src_ptr1 - (Border* plane_stride)
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add r6, r2, lr ; src_ptr2 + plane_stride
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subs r12, r12, #1
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bne copy_top_bottom_y
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extra_y_copy_needed
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mov r7, lr, lsr #4 ; check to see if extra copy is needed
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ands r7, r7, #0x7
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bne extra_top_bottom_y
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end_of_border_copy_y
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;Border copy for U, V planes
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; Border = 16
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ldr r7, [r0, #yv12_buffer_config_u_buffer] ; src_ptr1
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ldr lr, [r0, #yv12_buffer_config_uv_stride] ; plane_stride
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ldr r3, [r0, #yv12_buffer_config_uv_width] ; plane_width
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ldr r4, [r0, #yv12_buffer_config_uv_height] ; plane_height
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mov r10, #2
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;copy the left and right most columns out
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border_copy_uv
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mov r1, r7 ; src_ptr1 needs to be saved for second half of loop
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sub r5, r1, #16 ; dest_ptr1 = src_ptr1 - Border
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add r6, r1, r3 ; dest_ptr2 = src_ptr2 + 1 (src_ptr1 + plane_width)
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sub r2, r6, #1 ; src_ptr2 = src_ptr1 + plane_width - 1
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mov r12, r4, lsr #3 ; plane_height / 8
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copy_left_right_uv
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vld1.8 {d0[], d1[]}, [r1], lr
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vld1.8 {d2[], d3[]}, [r2], lr
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vld1.8 {d4[], d5[]}, [r1], lr
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vld1.8 {d6[], d7[]}, [r2], lr
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vld1.8 {d8[], d9[]}, [r1], lr
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vld1.8 {d10[], d11[]}, [r2], lr
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vld1.8 {d12[], d13[]}, [r1], lr
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vld1.8 {d14[], d15[]}, [r2], lr
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vld1.8 {d16[], d17[]}, [r1], lr
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vld1.8 {d18[], d19[]}, [r2], lr
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vld1.8 {d20[], d21[]}, [r1], lr
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vld1.8 {d22[], d23[]}, [r2], lr
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vld1.8 {d24[], d25[]}, [r1], lr
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vld1.8 {d26[], d27[]}, [r2], lr
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vld1.8 {d28[], d29[]}, [r1], lr
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vld1.8 {d30[], d31[]}, [r2], lr
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subs r12, r12, #1
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vst1.8 {q0}, [r5], lr
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vst1.8 {q1}, [r6], lr
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vst1.8 {q2}, [r5], lr
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vst1.8 {q3}, [r6], lr
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vst1.8 {q4}, [r5], lr
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vst1.8 {q5}, [r6], lr
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vst1.8 {q6}, [r5], lr
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vst1.8 {q7}, [r6], lr
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vst1.8 {q8}, [r5], lr
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vst1.8 {q9}, [r6], lr
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vst1.8 {q10}, [r5], lr
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vst1.8 {q11}, [r6], lr
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vst1.8 {q12}, [r5], lr
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vst1.8 {q13}, [r6], lr
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vst1.8 {q14}, [r5], lr
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vst1.8 {q15}, [r6], lr
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bne copy_left_right_uv
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;Now copy the top and bottom source lines into each line of the respective borders
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mov r1, r7
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mul r8, r4, lr ; plane_height * plane_stride
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movs r12, lr, lsr #6 ; plane_stride / 64
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sub r1, r1, #16 ; src_ptr1 = u_buffer - Border
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add r6, r1, r8 ; dest_ptr2 = src_ptr2 + plane_stride (src_ptr1 + (plane_height * plane_stride)
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sub r2, r6, lr ; src_ptr2 = src_ptr1 + (plane_height * plane_stride) - plane_stride
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sub r5, r1, lr, asl #4 ; dest_ptr1 = src_ptr1 - (Border * plane_stride)
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ble extra_uv_copy_needed ; plane_stride < 64
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copy_top_bottom_uv
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vld1.8 {q0, q1}, [r1]!
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vld1.8 {q8, q9}, [r2]!
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vld1.8 {q2, q3}, [r1]!
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vld1.8 {q10, q11}, [r2]!
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mov r7, #16 ; Border
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top_bottom_16
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subs r7, r7, #1
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vst1.8 {q0, q1}, [r5]!
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vst1.8 {q8, q9}, [r6]!
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vst1.8 {q2, q3}, [r5]!
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vst1.8 {q10, q11}, [r6]!
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add r5, r5, lr ; dest_ptr1 += plane_stride
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sub r5, r5, #64
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add r6, r6, lr ; dest_ptr2 += plane_stride
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sub r6, r6, #64
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bne top_bottom_16
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sub r5, r1, lr, asl #4 ; dest_ptr1 = src_ptr1 - (Border * plane_stride)
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add r6, r2, lr ; dest_ptr2 = src_ptr2 + plane_stride
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subs r12, r12, #1
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bne copy_top_bottom_uv
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extra_uv_copy_needed
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mov r7, lr, lsr #3 ; check to see if extra copy is needed
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ands r7, r7, #0x7
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bne extra_top_bottom_uv
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end_of_border_copy_uv
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subs r10, r10, #1
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ldrne r7, [r0, #yv12_buffer_config_v_buffer] ; src_ptr1
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bne border_copy_uv
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vpop {d8 - d15}
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pop {r4 - r10, pc}
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;;;;;;;;;;;;;;;;;;;;;;
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extra_top_bottom_y
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vld1.8 {q0}, [r1]!
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vld1.8 {q2}, [r2]!
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mov r9, #4 ; 32 >> 3
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extra_top_bottom_32
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subs r9, r9, #1
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vst1.8 {q0}, [r5], lr
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vst1.8 {q2}, [r6], lr
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vst1.8 {q0}, [r5], lr
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vst1.8 {q2}, [r6], lr
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vst1.8 {q0}, [r5], lr
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vst1.8 {q2}, [r6], lr
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vst1.8 {q0}, [r5], lr
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vst1.8 {q2}, [r6], lr
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vst1.8 {q0}, [r5], lr
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vst1.8 {q2}, [r6], lr
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vst1.8 {q0}, [r5], lr
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vst1.8 {q2}, [r6], lr
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vst1.8 {q0}, [r5], lr
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vst1.8 {q2}, [r6], lr
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vst1.8 {q0}, [r5], lr
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vst1.8 {q2}, [r6], lr
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bne extra_top_bottom_32
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sub r5, r1, lr, asl #5 ; src_ptr1 - (Border * plane_stride)
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add r6, r2, lr ; src_ptr2 + plane_stride
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subs r7, r7, #1
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bne extra_top_bottom_y
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b end_of_border_copy_y
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extra_top_bottom_uv
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vld1.8 {d0}, [r1]!
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vld1.8 {d8}, [r2]!
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mov r9, #2 ; 16 >> 3
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extra_top_bottom_16
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subs r9, r9, #1
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vst1.8 {d0}, [r5], lr
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vst1.8 {d8}, [r6], lr
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vst1.8 {d0}, [r5], lr
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vst1.8 {d8}, [r6], lr
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vst1.8 {d0}, [r5], lr
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vst1.8 {d8}, [r6], lr
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vst1.8 {d0}, [r5], lr
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vst1.8 {d8}, [r6], lr
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vst1.8 {d0}, [r5], lr
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vst1.8 {d8}, [r6], lr
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vst1.8 {d0}, [r5], lr
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vst1.8 {d8}, [r6], lr
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vst1.8 {d0}, [r5], lr
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vst1.8 {d8}, [r6], lr
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vst1.8 {d0}, [r5], lr
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vst1.8 {d8}, [r6], lr
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bne extra_top_bottom_16
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sub r5, r1, lr, asl #4 ; src_ptr1 - (Border * plane_stride)
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add r6, r2, lr ; src_ptr2 + plane_stride
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subs r7, r7, #1
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bne extra_top_bottom_uv
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b end_of_border_copy_uv
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ENDP
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END
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