GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/x86/idctdsp_init.c Lines: 67 89 75.3 %
Date: 2020-10-23 17:01:47 Branches: 51 81 63.0 %

Line Branch Exec Source
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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 "config.h"
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#include "libavutil/attributes.h"
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#include "libavutil/cpu.h"
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#include "libavutil/x86/cpu.h"
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#include "libavcodec/avcodec.h"
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#include "libavcodec/idctdsp.h"
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#include "idctdsp.h"
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#include "simple_idct.h"
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/* Input permutation for the simple_idct_mmx */
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static const uint8_t simple_mmx_permutation[64] = {
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    0x00, 0x08, 0x04, 0x09, 0x01, 0x0C, 0x05, 0x0D,
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    0x10, 0x18, 0x14, 0x19, 0x11, 0x1C, 0x15, 0x1D,
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    0x20, 0x28, 0x24, 0x29, 0x21, 0x2C, 0x25, 0x2D,
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    0x12, 0x1A, 0x16, 0x1B, 0x13, 0x1E, 0x17, 0x1F,
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    0x02, 0x0A, 0x06, 0x0B, 0x03, 0x0E, 0x07, 0x0F,
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    0x30, 0x38, 0x34, 0x39, 0x31, 0x3C, 0x35, 0x3D,
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    0x22, 0x2A, 0x26, 0x2B, 0x23, 0x2E, 0x27, 0x2F,
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    0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F,
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};
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static const uint8_t idct_sse2_row_perm[8] = { 0, 4, 1, 5, 2, 6, 3, 7 };
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av_cold int ff_init_scantable_permutation_x86(uint8_t *idct_permutation,
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                                              enum idct_permutation_type perm_type)
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{
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    int i;
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    switch (perm_type) {
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    case FF_IDCT_PERM_SIMPLE:
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        for (i = 0; i < 64; i++)
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            idct_permutation[i] = simple_mmx_permutation[i];
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        return 1;
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4
    case FF_IDCT_PERM_SSE2:
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        for (i = 0; i < 64; i++)
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256
            idct_permutation[i] = (i & 0x38) | idct_sse2_row_perm[i & 7];
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4
        return 1;
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    }
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1771
    return 0;
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}
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1560
av_cold void ff_idctdsp_init_x86(IDCTDSPContext *c, AVCodecContext *avctx,
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                                 unsigned high_bit_depth)
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{
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    int cpu_flags = av_get_cpu_flags();
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    if (EXTERNAL_MMX(cpu_flags)) {
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        c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_mmx;
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        c->put_pixels_clamped        = ff_put_pixels_clamped_mmx;
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        c->add_pixels_clamped        = ff_add_pixels_clamped_mmx;
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        if (!high_bit_depth &&
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            avctx->lowres == 0 &&
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            (avctx->idct_algo == FF_IDCT_AUTO ||
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3
                avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
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3
                avctx->idct_algo == FF_IDCT_SIMPLEMMX)) {
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                c->idct_put  = ff_simple_idct_put_mmx;
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                c->idct_add  = ff_simple_idct_add_mmx;
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                c->idct      = ff_simple_idct_mmx;
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                c->perm_type = FF_IDCT_PERM_SIMPLE;
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        }
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    }
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    if (EXTERNAL_SSE2(cpu_flags)) {
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        c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_sse2;
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        c->put_pixels_clamped        = ff_put_pixels_clamped_sse2;
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        c->add_pixels_clamped        = ff_add_pixels_clamped_sse2;
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        if (!high_bit_depth &&
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            avctx->lowres == 0 &&
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            (avctx->idct_algo == FF_IDCT_AUTO ||
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3
                avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
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3
                avctx->idct_algo == FF_IDCT_SIMPLEMMX)) {
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                c->idct_put  = ff_simple_idct_put_sse2;
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                c->idct_add  = ff_simple_idct_add_sse2;
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                c->perm_type = FF_IDCT_PERM_SIMPLE;
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        }
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        if (ARCH_X86_64 &&
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            !high_bit_depth &&
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            avctx->lowres == 0 &&
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            (avctx->idct_algo == FF_IDCT_AUTO ||
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3
                avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
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3
                avctx->idct_algo == FF_IDCT_SIMPLEMMX ||
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3
                avctx->idct_algo == FF_IDCT_SIMPLE)) {
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                c->idct      = ff_simple_idct8_sse2;
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                c->idct_put  = ff_simple_idct8_put_sse2;
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                c->idct_add  = ff_simple_idct8_add_sse2;
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                c->perm_type = FF_IDCT_PERM_TRANSPOSE;
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        }
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    }
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    if (ARCH_X86_64 && avctx->lowres == 0) {
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        if (EXTERNAL_AVX(cpu_flags) &&
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            !high_bit_depth &&
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            (avctx->idct_algo == FF_IDCT_AUTO ||
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3
                avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
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3
                avctx->idct_algo == FF_IDCT_SIMPLEMMX ||
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3
                avctx->idct_algo == FF_IDCT_SIMPLE)) {
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                c->idct      = ff_simple_idct8_avx;
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                c->idct_put  = ff_simple_idct8_put_avx;
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                c->idct_add  = ff_simple_idct8_add_avx;
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                c->perm_type = FF_IDCT_PERM_TRANSPOSE;
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        }
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        if (avctx->bits_per_raw_sample == 10 &&
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            avctx->codec_id != AV_CODEC_ID_MPEG4 &&
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            (avctx->idct_algo == FF_IDCT_AUTO ||
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             avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
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             avctx->idct_algo == FF_IDCT_SIMPLE)) {
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            if (EXTERNAL_SSE2(cpu_flags)) {
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                c->idct_put  = ff_simple_idct10_put_sse2;
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                c->idct_add  = NULL;
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                c->idct      = ff_simple_idct10_sse2;
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                c->perm_type = FF_IDCT_PERM_TRANSPOSE;
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            }
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            if (EXTERNAL_AVX(cpu_flags)) {
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                c->idct_put  = ff_simple_idct10_put_avx;
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                c->idct_add  = NULL;
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                c->idct      = ff_simple_idct10_avx;
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                c->perm_type = FF_IDCT_PERM_TRANSPOSE;
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            }
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        }
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        if (avctx->bits_per_raw_sample == 12 &&
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            (avctx->idct_algo == FF_IDCT_AUTO ||
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4
             avctx->idct_algo == FF_IDCT_SIMPLEMMX)) {
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            if (EXTERNAL_SSE2(cpu_flags)) {
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                c->idct_put  = ff_simple_idct12_put_sse2;
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                c->idct_add  = NULL;
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                c->idct      = ff_simple_idct12_sse2;
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                c->perm_type = FF_IDCT_PERM_TRANSPOSE;
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            }
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            if (EXTERNAL_AVX(cpu_flags)) {
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                c->idct_put  = ff_simple_idct12_put_avx;
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                c->idct_add  = NULL;
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                c->idct      = ff_simple_idct12_avx;
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                c->perm_type = FF_IDCT_PERM_TRANSPOSE;
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            }
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        }
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    }
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}