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avg_pred_avx2.c


products/sources/formale Sprachen/C/Firefox/media/libvpx/libvpx/vpx_dsp/x86/avg_pred_avx2.c

/* * Copyright (c) 2023 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. */ #include #include #include "./vpx_dsp_rtcd.h" void vpx_comp_avg_pred_avx2(uint8_t *comp_pred, const uint8_t *pred, int width, int height, const uint8_t *ref, int ref_stride) { int row = 0; // comp_pred and pred must be 32 byte aligned. assert(((intptr_t)comp_pred % 32) == 0); assert(((intptr_t)pred % 32) == 0); if (width == 8) { assert(height % 4 == 0); do { const __m256i p = _mm256_load_si256((const __m256i *)pred); const __m128i r_0 = _mm_loadl_epi64((const __m128i *)ref); const __m128i r_1 = _mm_loadl_epi64((const __m128i *)(ref + 2 * ref_stride)); const __m128i r1 = _mm_castps_si128(_mm_loadh_pi( _mm_castsi128_ps(r_0), (const __m64 *)(ref + ref_stride))); const __m128i r2 = _mm_castps_si128(_mm_loadh_pi( _mm_castsi128_ps(r_1), (const __m64 *)(ref + 3 * ref_stride))); const __m256i ref_0123 = _mm256_inserti128_si256(_mm256_castsi128_si256(r1), r2, 1); const __m256i avg = _mm256_avg_epu8(p, ref_0123); _mm256_store_si256((__m256i *)comp_pred, avg); row += 4; pred += 32; comp_pred += 32; ref += 4 * ref_stride; } while (row < height); } else if (width == 16) { assert(height % 4 == 0); do { const __m256i pred_0 = _mm256_load_si256((const __m256i *)pred); const __m256i pred_1 = _mm256_load_si256((const __m256i *)(pred + 32)); const __m256i tmp0 = _mm256_castsi128_si256(_mm_loadu_si128((const __m128i *)ref)); const __m256i ref_0 = _mm256_inserti128_si256( tmp0, _mm_loadu_si128((const __m128i *)(ref + ref_stride)), 1); const __m256i tmp1 = _mm256_castsi128_si256( _mm_loadu_si128((const __m128i *)(ref + 2 * ref_stride))); const __m256i ref_1 = _mm256_inserti128_si256( tmp1, _mm_loadu_si128((const __m128i *)(ref + 3 * ref_stride)), 1); const __m256i average_0 = _mm256_avg_epu8(pred_0, ref_0); const __m256i average_1 = _mm256_avg_epu8(pred_1, ref_1); _mm256_store_si256((__m256i *)comp_pred, average_0); _mm256_store_si256((__m256i *)(comp_pred + 32), average_1); row += 4; pred += 64; comp_pred += 64; ref += 4 * ref_stride; } while (row < height); } else if (width == 32) { assert(height % 2 == 0); do { const __m256i pred_0 = _mm256_load_si256((const __m256i *)pred); const __m256i pred_1 = _mm256_load_si256((const __m256i *)(pred + 32)); const __m256i ref_0 = _mm256_loadu_si256((const __m256i *)ref); const __m256i ref_1 = _mm256_loadu_si256((const __m256i *)(ref + ref_stride)); const __m256i average_0 = _mm256_avg_epu8(pred_0, ref_0); const __m256i average_1 = _mm256_avg_epu8(pred_1, ref_1); _mm256_store_si256((__m256i *)comp_pred, average_0); _mm256_store_si256((__m256i *)(comp_pred + 32), average_1); row += 2; pred += 64; comp_pred += 64; ref += 2 * ref_stride; } while (row < height); } else if (width % 64 == 0) { do { int x; for (x = 0; x < width; x += 64) { const __m256i pred_0 = _mm256_load_si256((const __m256i *)(pred + x)); const __m256i pred_1 = _mm256_load_si256((const __m256i *)(pred + x + 32)); const __m256i ref_0 = _mm256_loadu_si256((const __m256i *)(ref + x)); const __m256i ref_1 = _mm256_loadu_si256((const __m256i *)(ref + x + 32)); const __m256i average_0 = _mm256_avg_epu8(pred_0, ref_0); const __m256i average_1 = _mm256_avg_epu8(pred_1, ref_1); _mm256_store_si256((__m256i *)(comp_pred + x), average_0); _mm256_store_si256((__m256i *)(comp_pred + x + 32), average_1); } row++; pred += width; comp_pred += width; ref += ref_stride; } while (row < height); } else { vpx_comp_avg_pred_sse2(comp_pred, pred, width, height, ref, ref_stride); } }

                                                                                                                                                                                                                                                                                                                                                                                                     

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