path: root/libavcodec/dsputil_template.c

/*
 * DSP utils
 * Copyright (c) 2000, 2001 Fabrice Bellard
 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
 *
 * gmc & q-pel & 32/64 bit based MC by Michael Niedermayer <michaelni@gmx.at>
 *
 * 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
 */

/**
 * @file
 * DSP utils
 */

#include "pixels.h"

#include "bit_depth_template.c"

#if BIT_DEPTH == 8
/* draw the edges of width 'w' of an image of size width, height */
// FIXME: Check that this is OK for MPEG-4 interlaced.
static void FUNCC(draw_edges)(uint8_t *_buf, int _wrap, int width, int height,
                              int w, int h, int sides)
{
    pixel *buf = (pixel *) _buf;
    int wrap   = _wrap / sizeof(pixel);
    pixel *ptr = buf, *last_line;
    int i;

    /* left and right */
    for (i = 0; i < height; i++) {
        memset(ptr - w, ptr[0], w);
        memset(ptr + width, ptr[width - 1], w);
        ptr += wrap;
    }

    /* top and bottom + corners */
    buf -= w;
    last_line = buf + (height - 1) * wrap;
    if (sides & EDGE_TOP)
        for (i = 0; i < h; i++)
            // top
            memcpy(buf - (i + 1) * wrap, buf, (width + w + w) * sizeof(pixel));
    if (sides & EDGE_BOTTOM)
        for (i = 0; i < h; i++)
            // bottom
            memcpy(last_line + (i + 1) * wrap, last_line,
                   (width + w + w) * sizeof(pixel));
}
#endif

static void FUNCC(get_pixels)(int16_t *av_restrict block, const uint8_t *_pixels,
                              int line_size)
{
    const pixel *pixels = (const pixel *) _pixels;
    int i;

    /* read the pixels */
    for (i = 0; i < 8; i++) {
        block[0] = pixels[0];
        block[1] = pixels[1];
        block[2] = pixels[2];
        block[3] = pixels[3];
        block[4] = pixels[4];
        block[5] = pixels[5];
        block[6] = pixels[6];
        block[7] = pixels[7];
        pixels  += line_size / sizeof(pixel);
        block   += 8;
    }
}

#if BIT_DEPTH == 8
static void FUNCC(clear_block)(int16_t *block)
{
    memset(block, 0, sizeof(int16_t) * 64);
}

static void FUNCC(clear_blocks)(int16_t *blocks)
{
    memset(blocks, 0, sizeof(int16_t) * 6 * 64);
}
#endif

#if BIT_DEPTH == 8
#include "hpel_template.c"
#endif

#define PIXOP2(OPNAME, OP)                                              \
static inline void FUNC(OPNAME ## _no_rnd_pixels8_l2)(uint8_t *dst,     \
                                                      const uint8_t *src1, \
                                                      const uint8_t *src2, \
                                                      int dst_stride,   \
                                                      int src_stride1,  \
                                                      int src_stride2,  \
                                                      int h)            \
{                                                                       \
    int i;                                                              \
                                                                        \
    for (i = 0; i < h; i++) {                                           \
        pixel4 a, b;                                                    \
        a = AV_RN4P(&src1[i * src_stride1]);                            \
        b = AV_RN4P(&src2[i * src_stride2]);                            \
        OP(*((pixel4 *) &dst[i * dst_stride]),                          \
           no_rnd_avg_pixel4(a, b));                                    \
        a = AV_RN4P(&src1[i * src_stride1 + 4 * sizeof(pixel)]);        \
        b = AV_RN4P(&src2[i * src_stride2 + 4 * sizeof(pixel)]);        \
        OP(*((pixel4 *) &dst[i * dst_stride + 4 * sizeof(pixel)]),      \
           no_rnd_avg_pixel4(a, b));                                    \
    }                                                                   \
}                                                                       \
                                                                        \
static inline void FUNC(OPNAME ## _no_rnd_pixels16_l2)(uint8_t *dst,    \
                                                       const uint8_t *src1, \
                                                       const uint8_t *src2, \
                                                       int dst_stride,  \
                                                       int src_stride1, \
                                                       int src_stride2, \
                                                       int h)           \
{                                                                       \
    FUNC(OPNAME ## _no_rnd_pixels8_l2)(dst, src1, src2, dst_stride,     \
                                       src_stride1, src_stride2, h);    \
    FUNC(OPNAME ## _no_rnd_pixels8_l2)(dst  + 8 * sizeof(pixel),        \
                                       src1 + 8 * sizeof(pixel),        \
                                       src2 + 8 * sizeof(pixel),        \
                                       dst_stride, src_stride1,         \
                                       src_stride2, h);                 \
}                                                                       \
                                                                        \
static inline void FUNC(OPNAME ## _pixels8_l4)(uint8_t *dst,            \
                                               const uint8_t *src1,     \
                                               const uint8_t *src2,     \
                                               const uint8_t *src3,     \
                                               const uint8_t *src4,     \
                                               int dst_stride,          \
                                               int src_stride1,         \
                                               int src_stride2,         \
                                               int src_stride3,         \
                                               int src_stride4,         \
                                               int h)                   \
{                                                                       \
    /* FIXME HIGH BIT DEPTH */                                          \
    int i;                                                              \
                                                                        \
    for (i = 0; i < h; i++) {                                           \
        uint32_t a, b, c, d, l0, l1, h0, h1;                            \
        a  = AV_RN32(&src1[i * src_stride1]);                           \
        b  = AV_RN32(&src2[i * src_stride2]);                           \
        c  = AV_RN32(&src3[i * src_stride3]);                           \
        d  = AV_RN32(&src4[i * src_stride4]);                           \
        l0 = (a & 0x03030303UL) +                                       \
             (b & 0x03030303UL) +                                       \
                  0x02020202UL;                                         \
        h0 = ((a & 0xFCFCFCFCUL) >> 2) +                                \
             ((b & 0xFCFCFCFCUL) >> 2);                                 \
        l1 = (c & 0x03030303UL) +                                       \
             (d & 0x03030303UL);                                        \
        h1 = ((c & 0xFCFCFCFCUL) >> 2) +                                \
             ((d & 0xFCFCFCFCUL) >> 2);                                 \
        OP(*((uint32_t *) &dst[i * dst_stride]),                        \
           h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL));                \
        a  = AV_RN32(&src1[i * src_stride1 + 4]);                       \
        b  = AV_RN32(&src2[i * src_stride2 + 4]);                       \
        c  = AV_RN32(&src3[i * src_stride3 + 4]);                       \
        d  = AV_RN32(&src4[i * src_stride4 + 4]);                       \
        l0 = (a & 0x03030303UL) +                                       \
             (b & 0x03030303UL) +                                       \
                  0x02020202UL;                                         \
        h0 = ((a & 0xFCFCFCFCUL) >> 2) +                                \
             ((b & 0xFCFCFCFCUL) >> 2);                                 \
        l1 = (c & 0x03030303UL) +                                       \
             (d & 0x03030303UL);                                        \
        h1 = ((c & 0xFCFCFCFCUL) >> 2) +                                \
             ((d & 0xFCFCFCFCUL) >> 2);                                 \
        OP(*((uint32_t *) &dst[i * dst_stride + 4]),                    \
           h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL));                \
    }                                                                   \
}                                                                       \
                                                                        \
static inline void FUNC(OPNAME ## _no_rnd_pixels8_l4)(uint8_t *dst,     \
                                                      const uint8_t *src1, \
                                                      const uint8_t *src2, \
                                                      const uint8_t *src3, \
                                                      const uint8_t *src4, \
                                                      int dst_stride,   \
                                                      int src_stride1,  \
                                                      int src_stride2,  \
                                                      int src_stride3,  \
                                                      int src_stride4,  \
                                                      int h)            \
{                                                                       \
    /* FIXME HIGH BIT DEPTH */                                          \
    int i;                                                              \
                                                                        \
    for (i = 0; i < h; i++) {                                           \
        uint32_t a, b, c, d, l0, l1, h0, h1;                            \
        a  = AV_RN32(&src1[i * src_stride1]);                           \
        b  = AV_RN32(&src2[i * src_stride2]);                           \
        c  = AV_RN32(&src3[i * src_stride3]);                           \
        d  = AV_RN32(&src4[i * src_stride4]);                           \
        l0 = (a & 0x03030303UL) +                                       \
             (b & 0x03030303UL) +                                       \
                  0x01010101UL;                                         \
        h0 = ((a & 0xFCFCFCFCUL) >> 2) +                                \
             ((b & 0xFCFCFCFCUL) >> 2);                                 \
        l1 = (c & 0x03030303UL) +                                       \
             (d & 0x03030303UL);                                        \
        h1 = ((c & 0xFCFCFCFCUL) >> 2) +                                \
             ((d & 0xFCFCFCFCUL) >> 2);                                 \
        OP(*((uint32_t *) &dst[i * dst_stride]),                        \
           h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL));                \
        a  = AV_RN32(&src1[i * src_stride1 + 4]);                       \
        b  = AV_RN32(&src2[i * src_stride2 + 4]);                       \
        c  = AV_RN32(&src3[i * src_stride3 + 4]);                       \
        d  = AV_RN32(&src4[i * src_stride4 + 4]);                       \
        l0 = (a & 0x03030303UL) +                                       \
             (b & 0x03030303UL) +                                       \
                  0x01010101UL;                                         \
        h0 = ((a & 0xFCFCFCFCUL) >> 2) +                                \
             ((b & 0xFCFCFCFCUL) >> 2);                                 \
        l1 = (c & 0x03030303UL) +                                       \
             (d & 0x03030303UL);                                        \
        h1 = ((c & 0xFCFCFCFCUL) >> 2) +                                \
             ((d & 0xFCFCFCFCUL) >> 2);                                 \
        OP(*((uint32_t *) &dst[i * dst_stride + 4]),                    \
           h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL));                \
    }                                                                   \
}                                                                       \
static inline void FUNC(OPNAME ## _pixels16_l4)(uint8_t *dst,           \
                                                const uint8_t *src1,    \
                                                const uint8_t *src2,    \
                                                const uint8_t *src3,    \
                                                const uint8_t *src4,    \
                                                int dst_stride,         \
                                                int src_stride1,        \
                                                int src_stride2,        \
                                                int src_stride3,        \
                                                int src_stride4,        \
                                                int h)                  \
{                                                                       \
    FUNC(OPNAME ## _pixels8_l4)(dst, src1, src2, src3, src4, dst_stride, \
                                src_stride1, src_stride2, src_stride3,  \
                                src_stride4, h);                        \
    FUNC(OPNAME ## _pixels8_l4)(dst  + 8 * sizeof(pixel),               \
                                src1 + 8 * sizeof(pixel),               \
                                src2 + 8 * sizeof(pixel),               \
                                src3 + 8 * sizeof(pixel),               \
                                src4 + 8 * sizeof(pixel),               \
                                dst_stride, src_stride1, src_stride2,   \
                                src_stride3, src_stride4, h);           \
}                                                                       \
static inline void FUNC(OPNAME ## _no_rnd_pixels16_l4)(uint8_t *dst,    \
                                                       const uint8_t *src1, \
                                                       const uint8_t *src2, \
                                                       const uint8_t *src3, \
                                                       const uint8_t *src4, \
                                                       int dst_stride,  \
                                                       int src_stride1, \
                                                       int src_stride2, \
                                                       int src_stride3, \
                                                       int src_stride4, \
                                                       int h)           \
{                                                                       \
    FUNC(OPNAME ## _no_rnd_pixels8_l4)(dst, src1, src2, src3, src4,     \
                                       dst_stride, src_stride1, src_stride2, \
                                       src_stride3, src_stride4, h);    \
    FUNC(OPNAME ## _no_rnd_pixels8_l4)(dst  + 8 * sizeof(pixel),        \
                                       src1 + 8 * sizeof(pixel),        \
                                       src2 + 8 * sizeof(pixel),        \
                                       src3 + 8 * sizeof(pixel),        \
                                       src4 + 8 * sizeof(pixel),        \
                                       dst_stride, src_stride1, src_stride2, \
                                       src_stride3, src_stride4, h);    \
}                                                                       \
                                                                        \
static inline void FUNCC(OPNAME ## _pixels8_xy2)(uint8_t *block,        \
                                                 const uint8_t *pixels, \
                                                 ptrdiff_t line_size,   \
                                                 int h)                 \
{                                                                       \
    /* FIXME HIGH BIT DEPTH */                                          \
    int j;                                                              \
                                                                        \
    for (j = 0; j < 2; j++) {                                           \
        int i;                                                          \
        const uint32_t a = AV_RN32(pixels);                             \
        const uint32_t b = AV_RN32(pixels + 1);                         \
        uint32_t l0 = (a & 0x03030303UL) +                              \
                      (b & 0x03030303UL) +                              \
                           0x02020202UL;                                \
        uint32_t h0 = ((a & 0xFCFCFCFCUL) >> 2) +                       \
                      ((b & 0xFCFCFCFCUL) >> 2);                        \
        uint32_t l1, h1;                                                \
                                                                        \
        pixels += line_size;                                            \
        for (i = 0; i < h; i += 2) {                                    \
            uint32_t a = AV_RN32(pixels);                               \
            uint32_t b = AV_RN32(pixels + 1);                           \
            l1 = (a & 0x03030303UL) +                                   \
                 (b & 0x03030303UL);                                    \
            h1 = ((a & 0xFCFCFCFCUL) >> 2) +                            \
                 ((b & 0xFCFCFCFCUL) >> 2);                             \
            OP(*((uint32_t *) block),                                   \
               h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL));            \
            pixels += line_size;                                        \
            block  += line_size;                                        \
            a = AV_RN32(pixels);                                        \
            b = AV_RN32(pixels + 1);                                    \
            l0 = (a & 0x03030303UL) +                                   \
                 (b & 0x03030303UL) +                                   \
                      0x02020202UL;                                     \
            h0 = ((a & 0xFCFCFCFCUL) >> 2) +                            \
                 ((b & 0xFCFCFCFCUL) >> 2);                             \
            OP(*((uint32_t *) block),                                   \
               h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL));            \
            pixels += line_size;                                        \
            block  += line_size;                                        \
        }                                                               \
        pixels += 4 - line_size * (h + 1);                              \
        block  += 4 - line_size * h;                                    \
    }                                                                   \
}                                                                       \
                                                                        \
CALL_2X_PIXELS(FUNCC(OPNAME ## _pixels16_xy2),                          \
               FUNCC(OPNAME ## _pixels8_xy2),                           \
               8 * sizeof(pixel))                                       \

#define op_avg(a, b) a = rnd_avg_pixel4(a, b)
#define op_put(a, b) a = b
#if BIT_DEPTH == 8
#define put_no_rnd_pixels8_8_c put_pixels8_8_c
PIXOP2(avg, op_avg)
PIXOP2(put, op_put)
#endif
#undef op_avg
#undef op_put