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711781d7a1
Not every asm routine is expected clear the MMX state after returning. It is however a requisite for testing floating point code in checkasm. Annotate functions requiring cleanup with declare_func_emms() and issue emms after the call. The remaining functions are checked for having a cleared MMX state after return.
82 lines
3.2 KiB
C
82 lines
3.2 KiB
C
/*
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* Copyright (c) 2015 Henrik Gramner
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Libav 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with Libav; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <string.h>
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#include "checkasm.h"
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#include "libavcodec/h264qpel.h"
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#include "libavutil/common.h"
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#include "libavutil/internal.h"
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#include "libavutil/intreadwrite.h"
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static const uint32_t pixel_mask[3] = { 0xffffffff, 0x01ff01ff, 0x03ff03ff };
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#define SIZEOF_PIXEL ((bit_depth + 7) / 8)
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#define BUF_SIZE (2 * 16 * (16 + 3 + 4))
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#define randomize_buffers() \
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do { \
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uint32_t mask = pixel_mask[bit_depth - 8]; \
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int k; \
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for (k = 0; k < BUF_SIZE; k += 4) { \
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uint32_t r = rnd() & mask; \
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AV_WN32A(buf0 + k, r); \
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AV_WN32A(buf1 + k, r); \
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r = rnd(); \
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AV_WN32A(dst0 + k, r); \
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AV_WN32A(dst1 + k, r); \
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} \
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} while (0)
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#define src0 (buf0 + 3 * 2 * 16) /* h264qpel functions read data from negative src pointer offsets */
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#define src1 (buf1 + 3 * 2 * 16)
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void checkasm_check_h264qpel(void)
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{
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LOCAL_ALIGNED_16(uint8_t, buf0, [BUF_SIZE]);
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LOCAL_ALIGNED_16(uint8_t, buf1, [BUF_SIZE]);
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LOCAL_ALIGNED_16(uint8_t, dst0, [BUF_SIZE]);
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LOCAL_ALIGNED_16(uint8_t, dst1, [BUF_SIZE]);
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H264QpelContext h;
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int op, bit_depth, i, j;
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declare_func_emms(AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMXEXT, void, uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
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for (op = 0; op < 2; op++) {
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qpel_mc_func (*tab)[16] = op ? h.avg_h264_qpel_pixels_tab : h.put_h264_qpel_pixels_tab;
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const char *op_name = op ? "avg" : "put";
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for (bit_depth = 8; bit_depth <= 10; bit_depth++) {
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ff_h264qpel_init(&h, bit_depth);
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for (i = 0; i < (op ? 3 : 4); i++) {
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int size = 16 >> i;
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for (j = 0; j < 16; j++)
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if (check_func(tab[i][j], "%s_h264_qpel_%d_mc%d%d_%d", op_name, size, j & 3, j >> 2, bit_depth)) {
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randomize_buffers();
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call_ref(dst0, src0, size * SIZEOF_PIXEL);
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call_new(dst1, src1, size * SIZEOF_PIXEL);
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if (memcmp(buf0, buf1, BUF_SIZE) || memcmp(dst0, dst1, BUF_SIZE))
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fail();
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bench_new(dst1, src1, size * SIZEOF_PIXEL);
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}
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}
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}
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report("%s", op_name);
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}
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}
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