dsputil_iwmmxt_rnd.h

tcpmp播放器的flv插件

        "wpackhus wr8, wr8, wr9         \n\t"
        "wpackhus wr9, wr10, wr11       \n\t"
        "wstrd wr8, [%[block]]          \n\t"
        "wstrd wr9, [%[block], #8]      \n\t"
        "add %[block], %[block], %[line_size]   \n\t"

        "subs %[h], %[h], #2            \n\t"
        "bne 1b                         \n\t"
        : [h]"+r"(h), [pixels]"+r"(pixels), [block]"+r"(block)
        : [line_size]"r"(line_size)
        : "r12", "memory");
}

void DEF(avg, pixels8_xy2)(uint8_t *block, const uint8_t *pixels, const int line_size, int h)
{
    // [wr0 wr1 wr2 wr3] for previous line
    // [wr4 wr5 wr6 wr7] for current line
    SET_RND(wr15); // =2 for rnd  and  =1 for no_rnd version
    __asm__ __volatile__(
        "pld [%[block]]                 \n\t"
        "pld [%[block], #32]            \n\t"
        "pld [%[pixels]]                \n\t"
        "mov r12, #2                    \n\t"
        "pld [%[pixels], #32]           \n\t"
        "tmcr wcgr0, r12                \n\t" /* for shift value */
        "and r12, %[pixels], #7         \n\t"
        "bic %[pixels], %[pixels], #7   \n\t"
        "tmcr wcgr1, r12                \n\t"

        // [wr0 wr1 wr2 wr3] <= *
        // [wr4 wr5 wr6 wr7]
        "wldrd wr12, [%[pixels]]        \n\t"
        "add r12, r12, #1               \n\t"
        "wldrd wr13, [%[pixels], #8]    \n\t"
        "tmcr wcgr2, r12                \n\t"
        "add %[pixels], %[pixels], %[line_size] \n\t"
        "cmp r12, #8                    \n\t"
        "pld [%[pixels]]                \n\t"
        "pld [%[pixels], #32]           \n\t"
        "walignr1 wr2, wr12, wr13       \n\t"
        "wmoveq wr10, wr13              \n\t"
        "walignr2ne wr10, wr12, wr13    \n\t"
        "wunpckelub wr0, wr2            \n\t"
        "wunpckehub wr1, wr2            \n\t"
        "wunpckelub wr8, wr10           \n\t"
        "wunpckehub wr9, wr10           \n\t"
        "waddhus wr0, wr0, wr8          \n\t"
        "waddhus wr1, wr1, wr9          \n\t"

        "1:                             \n\t"
        // [wr0 wr1 wr2 wr3]
        // [wr4 wr5 wr6 wr7] <= *
        "wldrd wr12, [%[pixels]]        \n\t"
        "cmp r12, #8                    \n\t"
        "wldrd wr13, [%[pixels], #8]    \n\t"
        "add %[pixels], %[pixels], %[line_size] \n\t"
        "walignr1 wr6, wr12, wr13       \n\t"
        "pld [%[pixels]]                \n\t"
        "pld [%[pixels], #32]           \n\t"
        "wmoveq wr10, wr13              \n\t"
        "walignr2ne wr10, wr12, wr13    \n\t"
        "wunpckelub wr4, wr6            \n\t"
        "wunpckehub wr5, wr6            \n\t"
        "wunpckelub wr8, wr10           \n\t"
        "wunpckehub wr9, wr10           \n\t"
        "waddhus wr4, wr4, wr8          \n\t"
        "waddhus wr5, wr5, wr9          \n\t"
        "waddhus wr8, wr0, wr4          \n\t"
        "waddhus wr9, wr1, wr5          \n\t"
        "waddhus wr8, wr8, wr15         \n\t"
        "waddhus wr9, wr9, wr15         \n\t"
        "wldrd wr12, [%[block]]         \n\t"
        "wsrlhg wr8, wr8, wcgr0         \n\t"
        "wsrlhg wr9, wr9, wcgr0         \n\t"
        "wpackhus wr8, wr8, wr9         \n\t"
        WAVG2B" wr8, wr8, wr12          \n\t"
        "wstrd wr8, [%[block]]          \n\t"
        "add %[block], %[block], %[line_size]   \n\t"
        "wldrd wr12, [%[pixels]]        \n\t"
        "pld [%[block]]                 \n\t"
        "pld [%[block], #32]            \n\t"

        // [wr0 wr1 wr2 wr3] <= *
        // [wr4 wr5 wr6 wr7]
        "wldrd wr13, [%[pixels], #8]    \n\t"
        "add %[pixels], %[pixels], %[line_size] \n\t"
        "walignr1 wr2, wr12, wr13       \n\t"
        "pld [%[pixels]]                \n\t"
        "pld [%[pixels], #32]           \n\t"
        "wmoveq wr10, wr13              \n\t"
        "walignr2ne wr10, wr12, wr13    \n\t"
        "wunpckelub wr0, wr2            \n\t"
        "wunpckehub wr1, wr2            \n\t"
        "wunpckelub wr8, wr10           \n\t"
        "wunpckehub wr9, wr10           \n\t"
        "waddhus wr0, wr0, wr8          \n\t"
        "waddhus wr1, wr1, wr9          \n\t"
        "waddhus wr8, wr0, wr4          \n\t"
        "waddhus wr9, wr1, wr5          \n\t"
        "waddhus wr8, wr8, wr15         \n\t"
        "waddhus wr9, wr9, wr15         \n\t"
        "wldrd wr12, [%[block]]         \n\t"
        "wsrlhg wr8, wr8, wcgr0         \n\t"
        "wsrlhg wr9, wr9, wcgr0         \n\t"
        "wpackhus wr8, wr8, wr9         \n\t"
        "subs %[h], %[h], #2            \n\t"
        WAVG2B" wr8, wr8, wr12          \n\t"
        "wstrd wr8, [%[block]]          \n\t"
        "add %[block], %[block], %[line_size]   \n\t"
        "pld [%[block]]                 \n\t"
        "pld [%[block], #32]            \n\t"
        "bne 1b                         \n\t"
        : [h]"+r"(h), [pixels]"+r"(pixels), [block]"+r"(block)
        : [line_size]"r"(line_size)
        : "r12", "memory");
}

void DEF(avg, pixels16_xy2)(uint8_t *block, const uint8_t *pixels, const int line_size, int h)
{
    // [wr0 wr1 wr2 wr3] for previous line
    // [wr4 wr5 wr6 wr7] for current line
    SET_RND(wr15); // =2 for rnd  and  =1 for no_rnd version
    __asm__ __volatile__(
        "pld [%[block]]                 \n\t"
        "pld [%[block], #32]            \n\t"
        "pld [%[pixels]]                \n\t"
        "mov r12, #2                    \n\t"
        "pld [%[pixels], #32]           \n\t"
        "tmcr wcgr0, r12                \n\t" /* for shift value */
        /* alignment */
        "and r12, %[pixels], #7         \n\t"
        "bic %[pixels], %[pixels], #7           \n\t"
        "tmcr wcgr1, r12                \n\t"
        "add r12, r12, #1               \n\t"
        "tmcr wcgr2, r12                \n\t"

        // [wr0 wr1 wr2 wr3] <= *
        // [wr4 wr5 wr6 wr7]
        "wldrd wr12, [%[pixels]]        \n\t"
        "cmp r12, #8                    \n\t"
        "wldrd wr13, [%[pixels], #8]    \n\t"
        "wldrd wr14, [%[pixels], #16]   \n\t"
        "add %[pixels], %[pixels], %[line_size] \n\t"
        "pld [%[pixels]]                \n\t"
        "walignr1 wr2, wr12, wr13       \n\t"
        "pld [%[pixels], #32]           \n\t"
        "walignr1 wr3, wr13, wr14       \n\t"
        "wmoveq wr10, wr13              \n\t"
        "wmoveq wr11, wr14              \n\t"
        "walignr2ne wr10, wr12, wr13    \n\t"
        "walignr2ne wr11, wr13, wr14    \n\t"
        "wunpckelub wr0, wr2            \n\t"
        "wunpckehub wr1, wr2            \n\t"
        "wunpckelub wr2, wr3            \n\t"
        "wunpckehub wr3, wr3            \n\t"
        "wunpckelub wr8, wr10           \n\t"
        "wunpckehub wr9, wr10           \n\t"
        "wunpckelub wr10, wr11          \n\t"
        "wunpckehub wr11, wr11          \n\t"
        "waddhus wr0, wr0, wr8          \n\t"
        "waddhus wr1, wr1, wr9          \n\t"
        "waddhus wr2, wr2, wr10         \n\t"
        "waddhus wr3, wr3, wr11         \n\t"

        "1:                             \n\t"
        // [wr0 wr1 wr2 wr3]
        // [wr4 wr5 wr6 wr7] <= *
        "wldrd wr12, [%[pixels]]        \n\t"
        "cmp r12, #8                    \n\t"
        "wldrd wr13, [%[pixels], #8]    \n\t"
        "wldrd wr14, [%[pixels], #16]   \n\t"
        "add %[pixels], %[pixels], %[line_size] \n\t"
        "walignr1 wr6, wr12, wr13       \n\t"
        "pld [%[pixels]]                \n\t"
        "pld [%[pixels], #32]           \n\t"
        "walignr1 wr7, wr13, wr14       \n\t"
        "wmoveq wr10, wr13              \n\t"
        "wmoveq wr11, wr14              \n\t"
        "walignr2ne wr10, wr12, wr13    \n\t"
        "walignr2ne wr11, wr13, wr14    \n\t"
        "wunpckelub wr4, wr6            \n\t"
        "wunpckehub wr5, wr6            \n\t"
        "wunpckelub wr6, wr7            \n\t"
        "wunpckehub wr7, wr7            \n\t"
        "wunpckelub wr8, wr10           \n\t"
        "wunpckehub wr9, wr10           \n\t"
        "wunpckelub wr10, wr11          \n\t"
        "wunpckehub wr11, wr11          \n\t"
        "waddhus wr4, wr4, wr8          \n\t"
        "waddhus wr5, wr5, wr9          \n\t"
        "waddhus wr6, wr6, wr10         \n\t"
        "waddhus wr7, wr7, wr11         \n\t"
        "waddhus wr8, wr0, wr4          \n\t"
        "waddhus wr9, wr1, wr5          \n\t"
        "waddhus wr10, wr2, wr6         \n\t"
        "waddhus wr11, wr3, wr7         \n\t"
        "waddhus wr8, wr8, wr15         \n\t"
        "waddhus wr9, wr9, wr15         \n\t"
        "waddhus wr10, wr10, wr15       \n\t"
        "waddhus wr11, wr11, wr15       \n\t"
        "wsrlhg wr8, wr8, wcgr0         \n\t"
        "wsrlhg wr9, wr9, wcgr0         \n\t"
        "wldrd wr12, [%[block]]         \n\t"
        "wldrd wr13, [%[block], #8]     \n\t"
        "wsrlhg wr10, wr10, wcgr0       \n\t"
        "wsrlhg wr11, wr11, wcgr0       \n\t"
        "wpackhus wr8, wr8, wr9         \n\t"
        "wpackhus wr9, wr10, wr11       \n\t"
        WAVG2B" wr8, wr8, wr12          \n\t"
        WAVG2B" wr9, wr9, wr13          \n\t"
        "wstrd wr8, [%[block]]          \n\t"
        "wstrd wr9, [%[block], #8]      \n\t"
        "add %[block], %[block], %[line_size]   \n\t"

        // [wr0 wr1 wr2 wr3] <= *
        // [wr4 wr5 wr6 wr7]
        "wldrd wr12, [%[pixels]]        \n\t"
        "pld [%[block]]                 \n\t"
        "wldrd wr13, [%[pixels], #8]    \n\t"
        "pld [%[block], #32]            \n\t"
        "wldrd wr14, [%[pixels], #16]   \n\t"
        "add %[pixels], %[pixels], %[line_size] \n\t"
        "walignr1 wr2, wr12, wr13       \n\t"
        "pld [%[pixels]]                \n\t"
        "pld [%[pixels], #32]           \n\t"
        "walignr1 wr3, wr13, wr14       \n\t"
        "wmoveq wr10, wr13              \n\t"
        "wmoveq wr11, wr14              \n\t"
        "walignr2ne wr10, wr12, wr13    \n\t"
        "walignr2ne wr11, wr13, wr14    \n\t"
        "wunpckelub wr0, wr2            \n\t"
        "wunpckehub wr1, wr2            \n\t"
        "wunpckelub wr2, wr3            \n\t"
        "wunpckehub wr3, wr3            \n\t"
        "wunpckelub wr8, wr10           \n\t"
        "wunpckehub wr9, wr10           \n\t"
        "wunpckelub wr10, wr11          \n\t"
        "wunpckehub wr11, wr11          \n\t"
        "waddhus wr0, wr0, wr8          \n\t"
        "waddhus wr1, wr1, wr9          \n\t"
        "waddhus wr2, wr2, wr10         \n\t"
        "waddhus wr3, wr3, wr11         \n\t"
        "waddhus wr8, wr0, wr4          \n\t"
        "waddhus wr9, wr1, wr5          \n\t"
        "waddhus wr10, wr2, wr6         \n\t"
        "waddhus wr11, wr3, wr7         \n\t"
        "waddhus wr8, wr8, wr15         \n\t"
        "waddhus wr9, wr9, wr15         \n\t"
        "waddhus wr10, wr10, wr15       \n\t"
        "waddhus wr11, wr11, wr15       \n\t"
        "wsrlhg wr8, wr8, wcgr0         \n\t"
        "wsrlhg wr9, wr9, wcgr0         \n\t"
        "wldrd wr12, [%[block]]         \n\t"
        "wldrd wr13, [%[block], #8]     \n\t"
        "wsrlhg wr10, wr10, wcgr0       \n\t"
        "wsrlhg wr11, wr11, wcgr0       \n\t"
        "wpackhus wr8, wr8, wr9         \n\t"
        "wpackhus wr9, wr10, wr11       \n\t"
        WAVG2B" wr8, wr8, wr12          \n\t"
        WAVG2B" wr9, wr9, wr13          \n\t"
        "wstrd wr8, [%[block]]          \n\t"
        "wstrd wr9, [%[block], #8]      \n\t"
        "add %[block], %[block], %[line_size]   \n\t"
        "subs %[h], %[h], #2            \n\t"
        "pld [%[block]]                 \n\t"
        "pld [%[block], #32]            \n\t"
        "bne 1b                         \n\t"
        : [h]"+r"(h), [pixels]"+r"(pixels), [block]"+r"(block)
        : [line_size]"r"(line_size)
        : "r12", "memory");
}