i420_yuy2.c

video linux conference

                                 - p_source->p[0].i_visible_pitch;
    const int i_source_margin_c = p_source->p[1].i_pitch
                                 - p_source->p[1].i_visible_pitch;
    const int i_dest_margin = p_dest->p->i_pitch
                               - p_dest->p->i_visible_pitch;

    for( i_y = p_vout->render.i_height / 2 ; i_y-- ; )
    {
        p_line1 = p_line2;
        p_line2 += p_dest->p->i_pitch;

        p_y1 = p_y2;
        p_y2 += p_source->p[Y_PLANE].i_pitch;

#if !defined (MODULE_NAME_IS_i420_yuy2_mmx)
        for( i_x = p_vout->render.i_width / 2 ; i_x-- ; )
        {
            C_YUV420_YUYV( );
        }
#else
        for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
        {
            MMX_CALL( MMX_YUV420_YUYV );
        }
        for( i_x = ( p_vout->render.i_width % 8 ) / 2; i_x-- ; )
        {
            C_YUV420_YUYV( );
        }
#endif

        p_y1 += i_source_margin;
        p_y2 += i_source_margin;
        p_u += i_source_margin_c;
        p_v += i_source_margin_c;
        p_line1 += i_dest_margin;
        p_line2 += i_dest_margin;
    }

#if defined (MODULE_NAME_IS_i420_yuy2_altivec)
    }
#endif
}

/*****************************************************************************
 * I420_YVYU: planar YUV 4:2:0 to packed YVYU 4:2:2
 *****************************************************************************/
#if !defined (MODULE_NAME_IS_i420_yuy2_altivec)
static void I420_YVYU( vout_thread_t *p_vout, picture_t *p_source,
                                              picture_t *p_dest )
{
    uint8_t *p_line1, *p_line2 = p_dest->p->p_pixels;
    uint8_t *p_y1, *p_y2 = p_source->Y_PIXELS;
    uint8_t *p_u = p_source->U_PIXELS;
    uint8_t *p_v = p_source->V_PIXELS;

    int i_x, i_y;

    const int i_source_margin = p_source->p[0].i_pitch
                                 - p_source->p[0].i_visible_pitch;
    const int i_source_margin_c = p_source->p[1].i_pitch
                                 - p_source->p[1].i_visible_pitch;
    const int i_dest_margin = p_dest->p->i_pitch
                               - p_dest->p->i_visible_pitch;

    for( i_y = p_vout->render.i_height / 2 ; i_y-- ; )
    {
        p_line1 = p_line2;
        p_line2 += p_dest->p->i_pitch;

        p_y1 = p_y2;
        p_y2 += p_source->p[Y_PLANE].i_pitch;

        for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
        {
#if defined (MODULE_NAME_IS_i420_yuy2)
            C_YUV420_YVYU( );
            C_YUV420_YVYU( );
            C_YUV420_YVYU( );
            C_YUV420_YVYU( );
#else
            MMX_CALL( MMX_YUV420_YVYU );
#endif
        }

        p_y1 += i_source_margin;
        p_y2 += i_source_margin;
        p_u += i_source_margin_c;
        p_v += i_source_margin_c;
        p_line1 += i_dest_margin;
        p_line2 += i_dest_margin;
    }
}

/*****************************************************************************
 * I420_UYVY: planar YUV 4:2:0 to packed UYVY 4:2:2
 *****************************************************************************/
static void I420_UYVY( vout_thread_t *p_vout, picture_t *p_source,
                                              picture_t *p_dest )
{
    uint8_t *p_line1, *p_line2 = p_dest->p->p_pixels;
    uint8_t *p_y1, *p_y2 = p_source->Y_PIXELS;
    uint8_t *p_u = p_source->U_PIXELS;
    uint8_t *p_v = p_source->V_PIXELS;

    int i_x, i_y;

    const int i_source_margin = p_source->p[0].i_pitch
                                 - p_source->p[0].i_visible_pitch;
    const int i_source_margin_c = p_source->p[1].i_pitch
                                 - p_source->p[1].i_visible_pitch;
    const int i_dest_margin = p_dest->p->i_pitch
                               - p_dest->p->i_visible_pitch;

    for( i_y = p_vout->render.i_height / 2 ; i_y-- ; )
    {
        p_line1 = p_line2;
        p_line2 += p_dest->p->i_pitch;

        p_y1 = p_y2;
        p_y2 += p_source->p[Y_PLANE].i_pitch;

        for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
        {
#if defined (MODULE_NAME_IS_i420_yuy2)
            C_YUV420_UYVY( );
            C_YUV420_UYVY( );
            C_YUV420_UYVY( );
            C_YUV420_UYVY( );
#else
            MMX_CALL( MMX_YUV420_UYVY );
#endif
        }

        p_y1 += i_source_margin;
        p_y2 += i_source_margin;
        p_u += i_source_margin_c;
        p_v += i_source_margin_c;
        p_line1 += i_dest_margin;
        p_line2 += i_dest_margin;
    }
}

/*****************************************************************************
 * I420_IUYV: planar YUV 4:2:0 to interleaved packed UYVY 4:2:2
 *****************************************************************************/
static void I420_IUYV( vout_thread_t *p_vout, picture_t *p_source,
                                              picture_t *p_dest )
{
    /* FIXME: TODO ! */
    msg_Err( p_vout, "I420_IUYV unimplemented, please harass <[e-mail]>" );
}

/*****************************************************************************
 * I420_cyuv: planar YUV 4:2:0 to upside-down packed UYVY 4:2:2
 *****************************************************************************/
static void I420_cyuv( vout_thread_t *p_vout, picture_t *p_source,
                                              picture_t *p_dest )
{
    uint8_t *p_line1 = p_dest->p->p_pixels +
                       p_dest->p->i_visible_lines * p_dest->p->i_pitch
                       + p_dest->p->i_pitch;
    uint8_t *p_line2 = p_dest->p->p_pixels +
                       p_dest->p->i_visible_lines * p_dest->p->i_pitch;
    uint8_t *p_y1, *p_y2 = p_source->Y_PIXELS;
    uint8_t *p_u = p_source->U_PIXELS;
    uint8_t *p_v = p_source->V_PIXELS;

    int i_x, i_y;

    const int i_source_margin = p_source->p[0].i_pitch
                                 - p_source->p[0].i_visible_pitch;
    const int i_source_margin_c = p_source->p[1].i_pitch
                                 - p_source->p[1].i_visible_pitch;
    const int i_dest_margin = p_dest->p->i_pitch
                               - p_dest->p->i_visible_pitch;

    for( i_y = p_vout->render.i_height / 2 ; i_y-- ; )
    {
        p_line1 -= 3 * p_dest->p->i_pitch;
        p_line2 -= 3 * p_dest->p->i_pitch;

        p_y1 = p_y2;
        p_y2 += p_source->p[Y_PLANE].i_pitch;

        for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
        {
#if defined (MODULE_NAME_IS_i420_yuy2)
            C_YUV420_UYVY( );
            C_YUV420_UYVY( );
            C_YUV420_UYVY( );
            C_YUV420_UYVY( );
#else
            MMX_CALL( MMX_YUV420_UYVY );
#endif
        }

        p_y1 += i_source_margin;
        p_y2 += i_source_margin;
        p_u += i_source_margin_c;
        p_v += i_source_margin_c;
        p_line1 += i_dest_margin;
        p_line2 += i_dest_margin;
    }
}
#endif // !defined (MODULE_NAME_IS_i420_yuy2_altivec)

/*****************************************************************************
 * I420_Y211: planar YUV 4:2:0 to packed YUYV 2:1:1
 *****************************************************************************/
#if defined (MODULE_NAME_IS_i420_yuy2)
static void I420_Y211( vout_thread_t *p_vout, picture_t *p_source,
                                              picture_t *p_dest )
{
    uint8_t *p_line1, *p_line2 = p_dest->p->p_pixels;
    uint8_t *p_y1, *p_y2 = p_source->Y_PIXELS;
    uint8_t *p_u = p_source->U_PIXELS;
    uint8_t *p_v = p_source->V_PIXELS;

    int i_x, i_y;

    const int i_source_margin = p_source->p[0].i_pitch
                                 - p_source->p[0].i_visible_pitch;
    const int i_source_margin_c = p_source->p[1].i_pitch
                                 - p_source->p[1].i_visible_pitch;
    const int i_dest_margin = p_dest->p->i_pitch
                               - p_dest->p->i_visible_pitch;

    for( i_y = p_vout->render.i_height / 2 ; i_y-- ; )
    {
        p_line1 = p_line2;
        p_line2 += p_dest->p->i_pitch;

        p_y1 = p_y2;
        p_y2 += p_source->p[Y_PLANE].i_pitch;

        for( i_x = p_vout->render.i_width / 8 ; i_x-- ; )
        {
            C_YUV420_Y211( );
            C_YUV420_Y211( );
        }

        p_y1 += i_source_margin;
        p_y2 += i_source_margin;
        p_u += i_source_margin_c;
        p_v += i_source_margin_c;
        p_line1 += i_dest_margin;
        p_line2 += i_dest_margin;
    }
}
#endif