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315 lines
12 KiB
315 lines
12 KiB
/* |
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* Copyright (c) 2024 Zhao Zhili <quinkblack@foxmail.com> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavutil/aarch64/asm.S" |
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.macro rgb_to_yuv_load_rgb src, element=3 |
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.if \element == 3 |
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ld3 { v16.16b, v17.16b, v18.16b }, [\src] |
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.else |
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ld4 { v16.16b, v17.16b, v18.16b, v19.16b }, [\src] |
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.endif |
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uxtl v19.8h, v16.8b // v19: r |
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uxtl v20.8h, v17.8b // v20: g |
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uxtl v21.8h, v18.8b // v21: b |
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uxtl2 v22.8h, v16.16b // v22: r |
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uxtl2 v23.8h, v17.16b // v23: g |
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uxtl2 v24.8h, v18.16b // v24: b |
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.endm |
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.macro argb_to_yuv_load_rgb src |
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ld4 { v16.16b, v17.16b, v18.16b, v19.16b }, [\src] |
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uxtl v21.8h, v19.8b // v21: b |
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uxtl2 v24.8h, v19.16b // v24: b |
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uxtl v19.8h, v17.8b // v19: r |
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uxtl v20.8h, v18.8b // v20: g |
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uxtl2 v22.8h, v17.16b // v22: r |
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uxtl2 v23.8h, v18.16b // v23: g |
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.endm |
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.macro rgb_to_yuv_product r, g, b, dst1, dst2, dst, coef0, coef1, coef2, right_shift |
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mov \dst1\().16b, v6.16b // dst1 = const_offset |
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mov \dst2\().16b, v6.16b // dst2 = const_offset |
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smlal \dst1\().4s, \coef0\().4h, \r\().4h // dst1 += rx * r |
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smlal \dst1\().4s, \coef1\().4h, \g\().4h // dst1 += gx * g |
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smlal \dst1\().4s, \coef2\().4h, \b\().4h // dst1 += bx * b |
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smlal2 \dst2\().4s, \coef0\().8h, \r\().8h // dst2 += rx * r |
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smlal2 \dst2\().4s, \coef1\().8h, \g\().8h // dst2 += gx * g |
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smlal2 \dst2\().4s, \coef2\().8h, \b\().8h // dst2 += bx * b |
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sqshrn \dst\().4h, \dst1\().4s, \right_shift // dst_lower_half = dst1 >> right_shift |
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sqshrn2 \dst\().8h, \dst2\().4s, \right_shift // dst_higher_half = dst2 >> right_shift |
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.endm |
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.macro rgbToY_neon fmt_bgr, fmt_rgb, element, alpha_first=0 |
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function ff_\fmt_bgr\()ToY_neon, export=1 |
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cmp w4, #0 // check width > 0 |
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ldp w12, w11, [x5] // w12: ry, w11: gy |
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ldr w10, [x5, #8] // w10: by |
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b.gt 4f |
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ret |
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endfunc |
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function ff_\fmt_rgb\()ToY_neon, export=1 |
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cmp w4, #0 // check width > 0 |
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ldp w10, w11, [x5] // w10: ry, w11: gy |
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ldr w12, [x5, #8] // w12: by |
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b.le 3f |
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4: |
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mov w9, #256 // w9 = 1 << (RGB2YUV_SHIFT - 7) |
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movk w9, #8, lsl #16 // w9 += 32 << (RGB2YUV_SHIFT - 1) |
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dup v6.4s, w9 // w9: const_offset |
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cmp w4, #16 |
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dup v0.8h, w10 |
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dup v1.8h, w11 |
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dup v2.8h, w12 |
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b.lt 2f |
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1: |
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.if \alpha_first |
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argb_to_yuv_load_rgb x1 |
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.else |
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rgb_to_yuv_load_rgb x1, \element |
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.endif |
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rgb_to_yuv_product v19, v20, v21, v25, v26, v16, v0, v1, v2, #9 |
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rgb_to_yuv_product v22, v23, v24, v27, v28, v17, v0, v1, v2, #9 |
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sub w4, w4, #16 // width -= 16 |
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add x1, x1, #(16*\element) |
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cmp w4, #16 // width >= 16 ? |
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stp q16, q17, [x0], #32 // store to dst |
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b.ge 1b |
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cbz x4, 3f |
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2: |
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.if \alpha_first |
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ldrb w13, [x1, #1] // w13: r |
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ldrb w14, [x1, #2] // w14: g |
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ldrb w15, [x1, #3] // w15: b |
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.else |
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ldrb w13, [x1] // w13: r |
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ldrb w14, [x1, #1] // w14: g |
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ldrb w15, [x1, #2] // w15: b |
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.endif |
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smaddl x13, w13, w10, x9 // x13 = ry * r + const_offset |
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smaddl x13, w14, w11, x13 // x13 += gy * g |
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smaddl x13, w15, w12, x13 // x13 += by * b |
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asr w13, w13, #9 // x13 >>= 9 |
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sub w4, w4, #1 // width-- |
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add x1, x1, #\element |
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strh w13, [x0], #2 // store to dst |
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cbnz w4, 2b |
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3: |
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ret |
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endfunc |
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.endm |
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rgbToY_neon bgr24, rgb24, element=3 |
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rgbToY_neon bgra32, rgba32, element=4 |
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rgbToY_neon abgr32, argb32, element=4, alpha_first=1 |
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.macro rgb_set_uv_coeff half |
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.if \half |
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mov w9, #512 |
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movk w9, #128, lsl #16 // w9: const_offset |
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.else |
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mov w9, #256 |
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movk w9, #64, lsl #16 // w9: const_offset |
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.endif |
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dup v0.8h, w10 |
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dup v1.8h, w11 |
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dup v2.8h, w12 |
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dup v3.8h, w13 |
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dup v4.8h, w14 |
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dup v5.8h, w15 |
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dup v6.4s, w9 |
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.endm |
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.macro rgb_load_add_half off_r1, off_r2, off_g1, off_g2, off_b1, off_b2 |
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ldrb w2, [x3, #\off_r1] // w2: r1 |
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ldrb w4, [x3, #\off_r2] // w4: r2 |
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add w2, w2, w4 // w2 = r1 + r2 |
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ldrb w4, [x3, #\off_g1] // w4: g1 |
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ldrb w7, [x3, #\off_g2] // w7: g2 |
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add w4, w4, w7 // w4 = g1 + g2 |
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ldrb w7, [x3, #\off_b1] // w7: b1 |
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ldrb w8, [x3, #\off_b2] // w8: b2 |
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add w7, w7, w8 // w7 = b1 + b2 |
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.endm |
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.macro rgbToUV_half_neon fmt_bgr, fmt_rgb, element, alpha_first=0 |
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function ff_\fmt_bgr\()ToUV_half_neon, export=1 |
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cmp w5, #0 // check width > 0 |
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b.le 3f |
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ldp w12, w11, [x6, #12] |
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ldp w10, w15, [x6, #20] |
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ldp w14, w13, [x6, #28] |
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b 4f |
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endfunc |
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function ff_\fmt_rgb\()ToUV_half_neon, export=1 |
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cmp w5, #0 // check width > 0 |
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b.le 3f |
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ldp w10, w11, [x6, #12] // w10: ru, w11: gu |
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ldp w12, w13, [x6, #20] // w12: bu, w13: rv |
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ldp w14, w15, [x6, #28] // w14: gv, w15: bv |
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4: |
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cmp w5, #8 |
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rgb_set_uv_coeff half=1 |
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b.lt 2f |
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1: |
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.if \element == 3 |
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ld3 { v16.16b, v17.16b, v18.16b }, [x3] |
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.else |
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ld4 { v16.16b, v17.16b, v18.16b, v19.16b }, [x3] |
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.endif |
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.if \alpha_first |
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uaddlp v21.8h, v19.16b |
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uaddlp v20.8h, v18.16b |
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uaddlp v19.8h, v17.16b |
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.else |
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uaddlp v19.8h, v16.16b // v19: r |
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uaddlp v20.8h, v17.16b // v20: g |
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uaddlp v21.8h, v18.16b // v21: b |
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.endif |
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rgb_to_yuv_product v19, v20, v21, v22, v23, v16, v0, v1, v2, #10 |
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rgb_to_yuv_product v19, v20, v21, v24, v25, v17, v3, v4, v5, #10 |
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sub w5, w5, #8 // width -= 8 |
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add x3, x3, #(16*\element) |
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cmp w5, #8 // width >= 8 ? |
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str q16, [x0], #16 // store dst_u |
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str q17, [x1], #16 // store dst_v |
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b.ge 1b |
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cbz w5, 3f |
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2: |
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.if \alpha_first |
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rgb_load_add_half 1, 5, 2, 6, 3, 7 |
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.else |
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.if \element == 3 |
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rgb_load_add_half 0, 3, 1, 4, 2, 5 |
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.else |
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rgb_load_add_half 0, 4, 1, 5, 2, 6 |
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.endif |
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.endif |
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smaddl x8, w2, w10, x9 // dst_u = ru * r + const_offset |
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smaddl x8, w4, w11, x8 // dst_u += gu * g |
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smaddl x8, w7, w12, x8 // dst_u += bu * b |
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asr x8, x8, #10 // dst_u >>= 10 |
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strh w8, [x0], #2 // store dst_u |
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smaddl x8, w2, w13, x9 // dst_v = rv * r + const_offset |
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smaddl x8, w4, w14, x8 // dst_v += gv * g |
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smaddl x8, w7, w15, x8 // dst_v += bv * b |
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asr x8, x8, #10 // dst_v >>= 10 |
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sub w5, w5, #1 |
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add x3, x3, #(2*\element) |
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strh w8, [x1], #2 // store dst_v |
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cbnz w5, 2b |
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3: |
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ret |
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endfunc |
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.endm |
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rgbToUV_half_neon bgr24, rgb24, element=3 |
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rgbToUV_half_neon bgra32, rgba32, element=4 |
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rgbToUV_half_neon abgr32, argb32, element=4, alpha_first=1 |
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.macro rgbToUV_neon fmt_bgr, fmt_rgb, element, alpha_first=0 |
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function ff_\fmt_bgr\()ToUV_neon, export=1 |
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cmp w5, #0 // check width > 0 |
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b.le 3f |
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ldp w12, w11, [x6, #12] |
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ldp w10, w15, [x6, #20] |
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ldp w14, w13, [x6, #28] |
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b 4f |
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endfunc |
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function ff_\fmt_rgb\()ToUV_neon, export=1 |
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cmp w5, #0 // check width > 0 |
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b.le 3f |
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ldp w10, w11, [x6, #12] // w10: ru, w11: gu |
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ldp w12, w13, [x6, #20] // w12: bu, w13: rv |
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ldp w14, w15, [x6, #28] // w14: gv, w15: bv |
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4: |
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cmp w5, #16 |
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rgb_set_uv_coeff half=0 |
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b.lt 2f |
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1: |
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.if \alpha_first |
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argb_to_yuv_load_rgb x3 |
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.else |
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rgb_to_yuv_load_rgb x3, \element |
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.endif |
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rgb_to_yuv_product v19, v20, v21, v25, v26, v16, v0, v1, v2, #9 |
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rgb_to_yuv_product v22, v23, v24, v27, v28, v17, v0, v1, v2, #9 |
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rgb_to_yuv_product v19, v20, v21, v25, v26, v18, v3, v4, v5, #9 |
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rgb_to_yuv_product v22, v23, v24, v27, v28, v19, v3, v4, v5, #9 |
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sub w5, w5, #16 |
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add x3, x3, #(16*\element) |
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cmp w5, #16 |
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stp q16, q17, [x0], #32 // store to dst_u |
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stp q18, q19, [x1], #32 // store to dst_v |
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b.ge 1b |
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cbz w5, 3f |
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2: |
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.if \alpha_first |
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ldrb w16, [x3, #1] // w16: r |
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ldrb w17, [x3, #2] // w17: g |
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ldrb w4, [x3, #3] // w4: b |
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.else |
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ldrb w16, [x3] // w16: r |
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ldrb w17, [x3, #1] // w17: g |
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ldrb w4, [x3, #2] // w4: b |
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.endif |
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smaddl x8, w16, w10, x9 // x8 = ru * r + const_offset |
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smaddl x8, w17, w11, x8 // x8 += gu * g |
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smaddl x8, w4, w12, x8 // x8 += bu * b |
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asr w8, w8, #9 // x8 >>= 9 |
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strh w8, [x0], #2 // store to dst_u |
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smaddl x8, w16, w13, x9 // x8 = rv * r + const_offset |
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smaddl x8, w17, w14, x8 // x8 += gv * g |
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smaddl x8, w4, w15, x8 // x8 += bv * b |
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asr w8, w8, #9 // x8 >>= 9 |
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sub w5, w5, #1 // width-- |
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add x3, x3, #\element |
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strh w8, [x1], #2 // store to dst_v |
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cbnz w5, 2b |
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3: |
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ret |
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endfunc |
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.endm |
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rgbToUV_neon bgr24, rgb24, element=3 |
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rgbToUV_neon bgra32, rgba32, element=4 |
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rgbToUV_neon abgr32, argb32, element=4, alpha_first=1
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