/* * Copyright (C) 2022 Loongson Technology Corporation Limited * Contributed by Hao Chen(chenhao@loongson.cn) * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "swscale_loongarch.h" #include "libavutil/loongarch/loongson_intrinsics.h" #define YUV2RGB_LOAD_COE \ /* Load x_offset */ \ __m256i y_offset = __lasx_xvreplgr2vr_d(c->yOffset); \ __m256i u_offset = __lasx_xvreplgr2vr_d(c->uOffset); \ __m256i v_offset = __lasx_xvreplgr2vr_d(c->vOffset); \ /* Load x_coeff */ \ __m256i ug_coeff = __lasx_xvreplgr2vr_d(c->ugCoeff); \ __m256i vg_coeff = __lasx_xvreplgr2vr_d(c->vgCoeff); \ __m256i y_coeff = __lasx_xvreplgr2vr_d(c->yCoeff); \ __m256i ub_coeff = __lasx_xvreplgr2vr_d(c->ubCoeff); \ __m256i vr_coeff = __lasx_xvreplgr2vr_d(c->vrCoeff); \ #define LOAD_YUV_16 \ m_y1 = __lasx_xvld(py_1, 0); \ m_y2 = __lasx_xvld(py_2, 0); \ m_u = __lasx_xvldrepl_d(pu, 0); \ m_v = __lasx_xvldrepl_d(pv, 0); \ m_u = __lasx_xvilvl_b(m_u, m_u); \ m_v = __lasx_xvilvl_b(m_v, m_v); \ DUP4_ARG1(__lasx_vext2xv_hu_bu, m_y1, m_y2, m_u, m_v, \ m_y1, m_y2, m_u, m_v); \ /* YUV2RGB method * The conversion method is as follows: * R = Y' * y_coeff + V' * vr_coeff * G = Y' * y_coeff + V' * vg_coeff + U' * ug_coeff * B = Y' * y_coeff + U' * ub_coeff * * where X' = X * 8 - x_offset * */ #define YUV2RGB \ m_y1 = __lasx_xvslli_h(m_y1, 3); \ m_y2 = __lasx_xvslli_h(m_y2, 3); \ m_u = __lasx_xvslli_h(m_u, 3); \ m_v = __lasx_xvslli_h(m_v, 3); \ m_y1 = __lasx_xvsub_h(m_y1, y_offset); \ m_y2 = __lasx_xvsub_h(m_y2, y_offset); \ m_u = __lasx_xvsub_h(m_u, u_offset); \ m_v = __lasx_xvsub_h(m_v, v_offset); \ y_1 = __lasx_xvmuh_h(m_y1, y_coeff); \ y_2 = __lasx_xvmuh_h(m_y2, y_coeff); \ u2g = __lasx_xvmuh_h(m_u, ug_coeff); \ u2b = __lasx_xvmuh_h(m_u, ub_coeff); \ v2r = __lasx_xvmuh_h(m_v, vr_coeff); \ v2g = __lasx_xvmuh_h(m_v, vg_coeff); \ r1 = __lasx_xvsadd_h(y_1, v2r); \ v2g = __lasx_xvsadd_h(v2g, u2g); \ g1 = __lasx_xvsadd_h(y_1, v2g); \ b1 = __lasx_xvsadd_h(y_1, u2b); \ r2 = __lasx_xvsadd_h(y_2, v2r); \ g2 = __lasx_xvsadd_h(y_2, v2g); \ b2 = __lasx_xvsadd_h(y_2, u2b); \ DUP4_ARG1(__lasx_xvclip255_h, r1, g1, b1, r2, r1, g1, b1, r2); \ DUP2_ARG1(__lasx_xvclip255_h, g2, b2, g2, b2); \ #define YUV2RGB_RES \ m_y1 = __lasx_xvldrepl_d(py_1, 0); \ m_y2 = __lasx_xvldrepl_d(py_2, 0); \ m_u = __lasx_xvldrepl_w(pu, 0); \ m_v = __lasx_xvldrepl_w(pv, 0); \ m_y1 = __lasx_xvilvl_d(m_y2, m_y1); \ m_u = __lasx_xvilvl_b(m_u, m_u); \ m_v = __lasx_xvilvl_b(m_v, m_v); \ m_y1 = __lasx_vext2xv_hu_bu(m_y1); \ m_u = __lasx_vext2xv_hu_bu(m_u); \ m_v = __lasx_vext2xv_hu_bu(m_v); \ m_y1 = __lasx_xvslli_h(m_y1, 3); \ m_u = __lasx_xvslli_h(m_u, 3); \ m_v = __lasx_xvslli_h(m_v, 3); \ m_y1 = __lasx_xvsub_h(m_y1, y_offset); \ m_u = __lasx_xvsub_h(m_u, u_offset); \ m_v = __lasx_xvsub_h(m_v, v_offset); \ y_1 = __lasx_xvmuh_h(m_y1, y_coeff); \ u2g = __lasx_xvmuh_h(m_u, ug_coeff); \ u2b = __lasx_xvmuh_h(m_u, ub_coeff); \ v2r = __lasx_xvmuh_h(m_v, vr_coeff); \ v2g = __lasx_xvmuh_h(m_v, vg_coeff); \ r1 = __lasx_xvsadd_h(y_1, v2r); \ v2g = __lasx_xvsadd_h(v2g, u2g); \ g1 = __lasx_xvsadd_h(y_1, v2g); \ b1 = __lasx_xvsadd_h(y_1, u2b); \ r1 = __lasx_xvclip255_h(r1); \ g1 = __lasx_xvclip255_h(g1); \ b1 = __lasx_xvclip255_h(b1); \ #define RGB_PACK(r, g, b, rgb_l, rgb_h) \ { \ __m256i rg; \ rg = __lasx_xvpackev_b(g, r); \ DUP2_ARG3(__lasx_xvshuf_b, b, rg, shuf2, b, rg, shuf3, rgb_l, rgb_h); \ } #define RGB32_PACK(a, r, g, b, rgb_l, rgb_h) \ { \ __m256i ra, bg, tmp0, tmp1; \ ra = __lasx_xvpackev_b(r, a); \ bg = __lasx_xvpackev_b(b, g); \ tmp0 = __lasx_xvilvl_h(bg, ra); \ tmp1 = __lasx_xvilvh_h(bg, ra); \ rgb_l = __lasx_xvpermi_q(tmp1, tmp0, 0x20); \ rgb_h = __lasx_xvpermi_q(tmp1, tmp0, 0x31); \ } #define RGB_STORE_RES(rgb_l, rgb_h, image_1, image_2) \ { \ __lasx_xvstelm_d(rgb_l, image_1, 0, 0); \ __lasx_xvstelm_d(rgb_l, image_1, 8, 1); \ __lasx_xvstelm_d(rgb_h, image_1, 16, 0); \ __lasx_xvstelm_d(rgb_l, image_2, 0, 2); \ __lasx_xvstelm_d(rgb_l, image_2, 8, 3); \ __lasx_xvstelm_d(rgb_h, image_2, 16, 2); \ } #define RGB_STORE(rgb_l, rgb_h, image) \ { \ __lasx_xvstelm_d(rgb_l, image, 0, 0); \ __lasx_xvstelm_d(rgb_l, image, 8, 1); \ __lasx_xvstelm_d(rgb_h, image, 16, 0); \ __lasx_xvstelm_d(rgb_l, image, 24, 2); \ __lasx_xvstelm_d(rgb_l, image, 32, 3); \ __lasx_xvstelm_d(rgb_h, image, 40, 2); \ } #define RGB32_STORE(rgb_l, rgb_h, image) \ { \ __lasx_xvst(rgb_l, image, 0); \ __lasx_xvst(rgb_h, image, 32); \ } #define RGB32_STORE_RES(rgb_l, rgb_h, image_1, image_2) \ { \ __lasx_xvst(rgb_l, image_1, 0); \ __lasx_xvst(rgb_h, image_2, 0); \ } #define YUV2RGBFUNC(func_name, dst_type, alpha) \ int func_name(SwsContext *c, const uint8_t *const src[], \ const int srcStride[], int srcSliceY, int srcSliceH, \ uint8_t *const dst[], const int dstStride[]) \ { \ int x, y, h_size, vshift, res; \ __m256i m_y1, m_y2, m_u, m_v; \ __m256i y_1, y_2, u2g, v2g, u2b, v2r, rgb1_l, rgb1_h; \ __m256i rgb2_l, rgb2_h, r1, g1, b1, r2, g2, b2; \ __m256i shuf2 = {0x0504120302100100, 0x0A18090816070614, \ 0x0504120302100100, 0x0A18090816070614}; \ __m256i shuf3 = {0x1E0F0E1C0D0C1A0B, 0x0101010101010101, \ 0x1E0F0E1C0D0C1A0B, 0x0101010101010101}; \ YUV2RGB_LOAD_COE \ y = (c->dstW + 7) & ~7; \ h_size = y >> 4; \ res = y & 15; \ \ vshift = c->srcFormat != AV_PIX_FMT_YUV422P; \ for (y = 0; y < srcSliceH; y += 2) { \ dst_type *image1 = (dst_type *)(dst[0] + (y + srcSliceY) * dstStride[0]);\ dst_type *image2 = (dst_type *)(image1 + dstStride[0]);\ const uint8_t *py_1 = src[0] + y * srcStride[0]; \ const uint8_t *py_2 = py_1 + srcStride[0]; \ const uint8_t *pu = src[1] + (y >> vshift) * srcStride[1]; \ const uint8_t *pv = src[2] + (y >> vshift) * srcStride[2]; \ for(x = 0; x < h_size; x++) { \ #define YUV2RGBFUNC32(func_name, dst_type, alpha) \ int func_name(SwsContext *c, const uint8_t *const src[], \ const int srcStride[], int srcSliceY, int srcSliceH, \ uint8_t *const dst[], const int dstStride[]) \ { \ int x, y, h_size, vshift, res; \ __m256i m_y1, m_y2, m_u, m_v; \ __m256i y_1, y_2, u2g, v2g, u2b, v2r, rgb1_l, rgb1_h; \ __m256i rgb2_l, rgb2_h, r1, g1, b1, r2, g2, b2; \ __m256i a = __lasx_xvldi(0xFF); \ \ YUV2RGB_LOAD_COE \ y = (c->dstW + 7) & ~7; \ h_size = y >> 4; \ res = y & 15; \ \ vshift = c->srcFormat != AV_PIX_FMT_YUV422P; \ for (y = 0; y < srcSliceH; y += 2) { \ int yd = y + srcSliceY; \ dst_type av_unused *r, *g, *b; \ dst_type *image1 = (dst_type *)(dst[0] + (yd) * dstStride[0]); \ dst_type *image2 = (dst_type *)(dst[0] + (yd + 1) * dstStride[0]); \ const uint8_t *py_1 = src[0] + y * srcStride[0]; \ const uint8_t *py_2 = py_1 + srcStride[0]; \ const uint8_t *pu = src[1] + (y >> vshift) * srcStride[1]; \ const uint8_t *pv = src[2] + (y >> vshift) * srcStride[2]; \ for(x = 0; x < h_size; x++) { \ #define DEALYUV2RGBREMAIN \ py_1 += 16; \ py_2 += 16; \ pu += 8; \ pv += 8; \ image1 += 48; \ image2 += 48; \ } \ if (res) { \ #define DEALYUV2RGBREMAIN32 \ py_1 += 16; \ py_2 += 16; \ pu += 8; \ pv += 8; \ image1 += 16; \ image2 += 16; \ } \ if (res) { \ #define END_FUNC() \ } \ } \ return srcSliceH; \ } YUV2RGBFUNC(yuv420_rgb24_lasx, uint8_t, 0) LOAD_YUV_16 YUV2RGB RGB_PACK(r1, g1, b1, rgb1_l, rgb1_h); RGB_PACK(r2, g2, b2, rgb2_l, rgb2_h); RGB_STORE(rgb1_l, rgb1_h, image1); RGB_STORE(rgb2_l, rgb2_h, image2); DEALYUV2RGBREMAIN YUV2RGB_RES RGB_PACK(r1, g1, b1, rgb1_l, rgb1_h); RGB_STORE_RES(rgb1_l, rgb1_h, image1, image2); END_FUNC() YUV2RGBFUNC(yuv420_bgr24_lasx, uint8_t, 0) LOAD_YUV_16 YUV2RGB RGB_PACK(b1, g1, r1, rgb1_l, rgb1_h); RGB_PACK(b2, g2, r2, rgb2_l, rgb2_h); RGB_STORE(rgb1_l, rgb1_h, image1); RGB_STORE(rgb2_l, rgb2_h, image2); DEALYUV2RGBREMAIN YUV2RGB_RES RGB_PACK(b1, g1, r1, rgb1_l, rgb1_h); RGB_STORE_RES(rgb1_l, rgb1_h, image1, image2); END_FUNC() YUV2RGBFUNC32(yuv420_rgba32_lasx, uint32_t, 0) LOAD_YUV_16 YUV2RGB RGB32_PACK(r1, g1, b1, a, rgb1_l, rgb1_h); RGB32_PACK(r2, g2, b2, a, rgb2_l, rgb2_h); RGB32_STORE(rgb1_l, rgb1_h, image1); RGB32_STORE(rgb2_l, rgb2_h, image2); DEALYUV2RGBREMAIN32 YUV2RGB_RES RGB32_PACK(r1, g1, b1, a, rgb1_l, rgb1_h); RGB32_STORE_RES(rgb1_l, rgb1_h, image1, image2); END_FUNC() YUV2RGBFUNC32(yuv420_bgra32_lasx, uint32_t, 0) LOAD_YUV_16 YUV2RGB RGB32_PACK(b1, g1, r1, a, rgb1_l, rgb1_h); RGB32_PACK(b2, g2, r2, a, rgb2_l, rgb2_h); RGB32_STORE(rgb1_l, rgb1_h, image1); RGB32_STORE(rgb2_l, rgb2_h, image2); DEALYUV2RGBREMAIN32 YUV2RGB_RES RGB32_PACK(b1, g1, r1, a, rgb1_l, rgb1_h); RGB32_STORE_RES(rgb1_l, rgb1_h, image1, image2); END_FUNC() YUV2RGBFUNC32(yuv420_argb32_lasx, uint32_t, 0) LOAD_YUV_16 YUV2RGB RGB32_PACK(a, r1, g1, b1, rgb1_l, rgb1_h); RGB32_PACK(a, r2, g2, b2, rgb2_l, rgb2_h); RGB32_STORE(rgb1_l, rgb1_h, image1); RGB32_STORE(rgb2_l, rgb2_h, image2); DEALYUV2RGBREMAIN32 YUV2RGB_RES RGB32_PACK(a, r1, g1, b1, rgb1_l, rgb1_h); RGB32_STORE_RES(rgb1_l, rgb1_h, image1, image2); END_FUNC() YUV2RGBFUNC32(yuv420_abgr32_lasx, uint32_t, 0) LOAD_YUV_16 YUV2RGB RGB32_PACK(a, b1, g1, r1, rgb1_l, rgb1_h); RGB32_PACK(a, b2, g2, r2, rgb2_l, rgb2_h); RGB32_STORE(rgb1_l, rgb1_h, image1); RGB32_STORE(rgb2_l, rgb2_h, image2); DEALYUV2RGBREMAIN32 YUV2RGB_RES RGB32_PACK(a, b1, g1, r1, rgb1_l, rgb1_h); RGB32_STORE_RES(rgb1_l, rgb1_h, image1, image2); END_FUNC()