mirror of
https://github.com/FFmpeg/FFmpeg.git
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316 lines
19 KiB
C
316 lines
19 KiB
C
/*
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* DSP utils
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* Copyright (c) 2000, 2001 Fabrice Bellard
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* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
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*
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* gmc & q-pel & 32/64 bit based MC by Michael Niedermayer <michaelni@gmx.at>
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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
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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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* 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 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 Libav; 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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/**
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* @file
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* DSP utils
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*/
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#include "pixels.h"
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/* draw the edges of width 'w' of an image of size width, height */
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// FIXME: Check that this is OK for MPEG-4 interlaced.
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static void draw_edges_8_c(uint8_t *buf, int wrap, int width, int height,
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int w, int h, int sides)
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{
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uint8_t *ptr = buf, *last_line;
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int i;
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/* left and right */
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for (i = 0; i < height; i++) {
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memset(ptr - w, ptr[0], w);
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memset(ptr + width, ptr[width - 1], w);
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ptr += wrap;
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}
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/* top and bottom + corners */
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buf -= w;
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last_line = buf + (height - 1) * wrap;
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if (sides & EDGE_TOP)
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for (i = 0; i < h; i++)
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// top
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memcpy(buf - (i + 1) * wrap, buf, width + w + w);
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if (sides & EDGE_BOTTOM)
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for (i = 0; i < h; i++)
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// bottom
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memcpy(last_line + (i + 1) * wrap, last_line, width + w + w);
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}
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static void clear_block_8_c(int16_t *block)
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{
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memset(block, 0, sizeof(int16_t) * 64);
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}
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static void clear_blocks_8_c(int16_t *blocks)
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{
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memset(blocks, 0, sizeof(int16_t) * 6 * 64);
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}
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#define PIXOP2(OPNAME, OP) \
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static inline void OPNAME ## _no_rnd_pixels8_l2_8(uint8_t *dst, \
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const uint8_t *src1, \
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const uint8_t *src2, \
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int dst_stride, \
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int src_stride1, \
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int src_stride2, \
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int h) \
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{ \
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int i; \
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\
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for (i = 0; i < h; i++) { \
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uint32_t a, b; \
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a = AV_RN32(&src1[i * src_stride1]); \
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b = AV_RN32(&src2[i * src_stride2]); \
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OP(*((uint32_t *) &dst[i * dst_stride]), \
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no_rnd_avg32(a, b)); \
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a = AV_RN32(&src1[i * src_stride1 + 4]); \
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b = AV_RN32(&src2[i * src_stride2 + 4]); \
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OP(*((uint32_t *) &dst[i * dst_stride + 4]), \
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no_rnd_avg32(a, b)); \
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} \
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} \
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\
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static inline void OPNAME ## _no_rnd_pixels16_l2_8(uint8_t *dst, \
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const uint8_t *src1, \
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const uint8_t *src2, \
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int dst_stride, \
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int src_stride1, \
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int src_stride2, \
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int h) \
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{ \
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OPNAME ## _no_rnd_pixels8_l2_8(dst, src1, src2, dst_stride, \
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src_stride1, src_stride2, h); \
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OPNAME ## _no_rnd_pixels8_l2_8(dst + 8, \
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src1 + 8, \
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src2 + 8, \
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dst_stride, src_stride1, \
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src_stride2, h); \
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} \
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\
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static inline void OPNAME ## _pixels8_l4_8(uint8_t *dst, \
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const uint8_t *src1, \
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const uint8_t *src2, \
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const uint8_t *src3, \
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const uint8_t *src4, \
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int dst_stride, \
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int src_stride1, \
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int src_stride2, \
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int src_stride3, \
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int src_stride4, \
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int h) \
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{ \
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/* FIXME HIGH BIT DEPTH */ \
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int i; \
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\
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for (i = 0; i < h; i++) { \
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uint32_t a, b, c, d, l0, l1, h0, h1; \
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a = AV_RN32(&src1[i * src_stride1]); \
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b = AV_RN32(&src2[i * src_stride2]); \
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c = AV_RN32(&src3[i * src_stride3]); \
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d = AV_RN32(&src4[i * src_stride4]); \
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l0 = (a & 0x03030303UL) + \
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(b & 0x03030303UL) + \
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0x02020202UL; \
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h0 = ((a & 0xFCFCFCFCUL) >> 2) + \
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((b & 0xFCFCFCFCUL) >> 2); \
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l1 = (c & 0x03030303UL) + \
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(d & 0x03030303UL); \
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h1 = ((c & 0xFCFCFCFCUL) >> 2) + \
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((d & 0xFCFCFCFCUL) >> 2); \
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OP(*((uint32_t *) &dst[i * dst_stride]), \
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h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL)); \
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a = AV_RN32(&src1[i * src_stride1 + 4]); \
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b = AV_RN32(&src2[i * src_stride2 + 4]); \
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c = AV_RN32(&src3[i * src_stride3 + 4]); \
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d = AV_RN32(&src4[i * src_stride4 + 4]); \
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l0 = (a & 0x03030303UL) + \
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(b & 0x03030303UL) + \
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0x02020202UL; \
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h0 = ((a & 0xFCFCFCFCUL) >> 2) + \
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((b & 0xFCFCFCFCUL) >> 2); \
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l1 = (c & 0x03030303UL) + \
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(d & 0x03030303UL); \
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h1 = ((c & 0xFCFCFCFCUL) >> 2) + \
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((d & 0xFCFCFCFCUL) >> 2); \
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OP(*((uint32_t *) &dst[i * dst_stride + 4]), \
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h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL)); \
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} \
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} \
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\
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static inline void OPNAME ## _no_rnd_pixels8_l4_8(uint8_t *dst, \
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const uint8_t *src1, \
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const uint8_t *src2, \
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const uint8_t *src3, \
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const uint8_t *src4, \
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int dst_stride, \
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int src_stride1, \
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int src_stride2, \
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int src_stride3, \
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int src_stride4, \
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int h) \
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{ \
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/* FIXME HIGH BIT DEPTH */ \
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int i; \
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\
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for (i = 0; i < h; i++) { \
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uint32_t a, b, c, d, l0, l1, h0, h1; \
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a = AV_RN32(&src1[i * src_stride1]); \
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b = AV_RN32(&src2[i * src_stride2]); \
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c = AV_RN32(&src3[i * src_stride3]); \
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d = AV_RN32(&src4[i * src_stride4]); \
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l0 = (a & 0x03030303UL) + \
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(b & 0x03030303UL) + \
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0x01010101UL; \
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h0 = ((a & 0xFCFCFCFCUL) >> 2) + \
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((b & 0xFCFCFCFCUL) >> 2); \
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l1 = (c & 0x03030303UL) + \
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(d & 0x03030303UL); \
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h1 = ((c & 0xFCFCFCFCUL) >> 2) + \
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((d & 0xFCFCFCFCUL) >> 2); \
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OP(*((uint32_t *) &dst[i * dst_stride]), \
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h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL)); \
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a = AV_RN32(&src1[i * src_stride1 + 4]); \
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b = AV_RN32(&src2[i * src_stride2 + 4]); \
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c = AV_RN32(&src3[i * src_stride3 + 4]); \
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d = AV_RN32(&src4[i * src_stride4 + 4]); \
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l0 = (a & 0x03030303UL) + \
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(b & 0x03030303UL) + \
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0x01010101UL; \
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h0 = ((a & 0xFCFCFCFCUL) >> 2) + \
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((b & 0xFCFCFCFCUL) >> 2); \
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l1 = (c & 0x03030303UL) + \
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(d & 0x03030303UL); \
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h1 = ((c & 0xFCFCFCFCUL) >> 2) + \
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((d & 0xFCFCFCFCUL) >> 2); \
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OP(*((uint32_t *) &dst[i * dst_stride + 4]), \
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h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL)); \
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} \
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} \
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\
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static inline void OPNAME ## _pixels16_l4_8(uint8_t *dst, \
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const uint8_t *src1, \
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const uint8_t *src2, \
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const uint8_t *src3, \
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const uint8_t *src4, \
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int dst_stride, \
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int src_stride1, \
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int src_stride2, \
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int src_stride3, \
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int src_stride4, \
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int h) \
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{ \
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OPNAME ## _pixels8_l4_8(dst, src1, src2, src3, src4, dst_stride, \
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src_stride1, src_stride2, src_stride3, \
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src_stride4, h); \
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OPNAME ## _pixels8_l4_8(dst + 8, \
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src1 + 8, src2 + 8, \
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src3 + 8, src4 + 8, \
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dst_stride, src_stride1, src_stride2, \
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src_stride3, src_stride4, h); \
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} \
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\
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static inline void OPNAME ## _no_rnd_pixels16_l4_8(uint8_t *dst, \
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const uint8_t *src1, \
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const uint8_t *src2, \
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const uint8_t *src3, \
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const uint8_t *src4, \
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int dst_stride, \
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int src_stride1, \
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int src_stride2, \
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int src_stride3, \
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int src_stride4, \
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int h) \
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{ \
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OPNAME ## _no_rnd_pixels8_l4_8(dst, src1, src2, src3, src4, \
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dst_stride, src_stride1, \
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src_stride2, src_stride3, \
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src_stride4, h); \
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OPNAME ## _no_rnd_pixels8_l4_8(dst + 8, \
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src1 + 8, src2 + 8, \
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src3 + 8, src4 + 8, \
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dst_stride, src_stride1, \
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src_stride2, src_stride3, \
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src_stride4, h); \
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} \
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\
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static inline void OPNAME ## _pixels8_xy2_8_c(uint8_t *block, \
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const uint8_t *pixels, \
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ptrdiff_t line_size, \
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int h) \
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{ \
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/* FIXME HIGH BIT DEPTH */ \
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int j; \
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\
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for (j = 0; j < 2; j++) { \
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int i; \
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const uint32_t a = AV_RN32(pixels); \
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const uint32_t b = AV_RN32(pixels + 1); \
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uint32_t l0 = (a & 0x03030303UL) + \
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(b & 0x03030303UL) + \
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0x02020202UL; \
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uint32_t h0 = ((a & 0xFCFCFCFCUL) >> 2) + \
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((b & 0xFCFCFCFCUL) >> 2); \
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uint32_t l1, h1; \
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\
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pixels += line_size; \
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for (i = 0; i < h; i += 2) { \
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uint32_t a = AV_RN32(pixels); \
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uint32_t b = AV_RN32(pixels + 1); \
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l1 = (a & 0x03030303UL) + \
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(b & 0x03030303UL); \
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h1 = ((a & 0xFCFCFCFCUL) >> 2) + \
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((b & 0xFCFCFCFCUL) >> 2); \
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OP(*((uint32_t *) block), \
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h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL)); \
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pixels += line_size; \
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block += line_size; \
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a = AV_RN32(pixels); \
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b = AV_RN32(pixels + 1); \
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l0 = (a & 0x03030303UL) + \
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(b & 0x03030303UL) + \
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0x02020202UL; \
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h0 = ((a & 0xFCFCFCFCUL) >> 2) + \
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((b & 0xFCFCFCFCUL) >> 2); \
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OP(*((uint32_t *) block), \
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h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL)); \
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pixels += line_size; \
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block += line_size; \
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} \
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pixels += 4 - line_size * (h + 1); \
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block += 4 - line_size * h; \
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} \
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} \
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\
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CALL_2X_PIXELS(OPNAME ## _pixels16_xy2_8_c, \
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OPNAME ## _pixels8_xy2_8_c, \
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8) \
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#define op_avg(a, b) a = rnd_avg32(a, b)
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#define op_put(a, b) a = b
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#define put_no_rnd_pixels8_8_c put_pixels8_8_c
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PIXOP2(avg, op_avg)
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PIXOP2(put, op_put)
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#undef op_avg
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#undef op_put
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