panoramix.c

VLC Player Source Code

/*****************************************************************************
 * panoramix.c : Wall panoramic video with edge blending plugin for vlc
 *****************************************************************************
 * Copyright (C) 2000, 2001, 2002, 2003 VideoLAN
 * $Id$
 *
 * Authors: Cedric Cocquebert <[e-mail]>
 *          based on Samuel Hocevar <[e-mail]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_vout.h>

#include "filter_common.h"

// add by [e-mail]
#define OVERLAP        2350
#ifdef OVERLAP
    #include <math.h>
    // OS CODE DEPENDENT to get display dimensions
    #ifdef SYS_MINGW32
        #include <windows.h>
    #else
        #include <X11/Xlib.h>
    #endif
    #define GAMMA        1
//  #define PACKED_YUV    1
    #define F2(a) ((a)*(a))
    #define F4(a,b,x) ((a)*(F2(x))+((b)*(x)))
    #define ACCURACY 1000
    #define RATIO_MAX 2500
    #define CLIP_01(a) (a < 0.0 ? 0.0 : (a > 1.0 ? 1.0 : a))
//    #define CLIP_0A(a) (a < 0.0 ? 0.0 : (a > ACCURACY ? ACCURACY : a))
#endif

/*****************************************************************************
 * Local prototypes
 *****************************************************************************/
static int  Create    ( vlc_object_t * );
static void Destroy   ( vlc_object_t * );

static int  Init      ( vout_thread_t * );
static void End       ( vout_thread_t * );
#ifdef PACKED_YUV
static void RenderPackedYUV   ( vout_thread_t *, picture_t * );
#endif
static void RenderPlanarYUV   ( vout_thread_t *, picture_t * );
static void RenderPackedRGB   ( vout_thread_t *, picture_t * );

static void RemoveAllVout  ( vout_thread_t *p_vout );

static int  SendEvents( vlc_object_t *, char const *,
                        vlc_value_t, vlc_value_t, void * );

/*****************************************************************************
 * Module descriptor
 *****************************************************************************/
#define COLS_TEXT N_("Number of columns")
#define COLS_LONGTEXT N_("Select the number of horizontal video windows in " \
    "which to split the video")

#define ROWS_TEXT N_("Number of rows")
#define ROWS_LONGTEXT N_("Select the number of vertical video windows in " \
    "which to split the video")

#define ACTIVE_TEXT N_("Active windows")
#define ACTIVE_LONGTEXT N_("Comma separated list of active windows, " \
    "defaults to all")

#define CFG_PREFIX "panoramix-"

vlc_module_begin();
    set_description( N_("Panoramix: wall with overlap video filter") );
    set_shortname( N_("Panoramix" ));
    set_capability( "video filter", 0 );
    set_category( CAT_VIDEO );
    set_subcategory( SUBCAT_VIDEO_VFILTER );

    add_integer( CFG_PREFIX "cols", -1, NULL,
                 COLS_TEXT, COLS_LONGTEXT, true );
    add_integer( CFG_PREFIX "rows", -1, NULL,
                 ROWS_TEXT, ROWS_LONGTEXT, true );

#ifdef OVERLAP
#define OFFSET_X_TEXT N_("Offset X offset (automatic compensation)")
#define OFFSET_X_LONGTEXT N_("Select if you want an automatic offset in horizontal (in case of misalignment due to autoratio control)")
    add_bool( CFG_PREFIX "offset-x", 1, NULL, OFFSET_X_TEXT, OFFSET_X_LONGTEXT, true );

#define LENGTH_TEXT N_("length of the overlapping area (in %)")
#define LENGTH_LONGTEXT N_("Select in percent the length of the blended zone")
    add_integer_with_range( CFG_PREFIX "bz-length", 100, 0, 100, NULL, LENGTH_TEXT, LENGTH_LONGTEXT, true );

#define HEIGHT_TEXT N_("height of the overlapping area (in %)")
#define HEIGHT_LONGTEXT N_("Select in percent the height of the blended zone (case of 2x2 wall)")
    add_integer_with_range( CFG_PREFIX "bz-height", 100, 0, 100, NULL, HEIGHT_TEXT, HEIGHT_LONGTEXT, true );

#define ATTENUATION_TEXT N_("Attenuation")
#define ATTENUATION_LONGTEXT N_("Check this option if you want attenuate blended zone by this plug-in (if option is unchecked, attenuate is made by opengl)")
    add_bool( CFG_PREFIX "attenuate", 1, NULL, ATTENUATION_TEXT, ATTENUATION_LONGTEXT, false );

#define BEGIN_TEXT N_("Attenuation, begin (in %)")
#define BEGIN_LONGTEXT N_("Select in percent the Lagrange coeff of the beginning blended zone")
    add_integer_with_range( CFG_PREFIX "bz-begin", 0, 0, 100, NULL, BEGIN_TEXT, BEGIN_LONGTEXT, true );

#define MIDDLE_TEXT N_("Attenuation, middle (in %)")
#define MIDDLE_LONGTEXT N_("Select in percent the Lagrange coeff of the middle of blended zone")
    add_integer_with_range( CFG_PREFIX "bz-middle", 50, 0, 100, NULL, MIDDLE_TEXT, MIDDLE_LONGTEXT, false );

#define END_TEXT N_("Attenuation, end (in %)")
#define END_LONGTEXT N_("Select in percent the Lagrange coeff of the end of blended zone")
    add_integer_with_range( CFG_PREFIX "bz-end", 100, 0, 100, NULL, END_TEXT, END_LONGTEXT, true );

#define MIDDLE_POS_TEXT N_("middle position (in %)")
#define MIDDLE_POS_LONGTEXT N_("Select in percent (50 is center) the position of the middle point (Lagrange) of blended zone")
    add_integer_with_range( CFG_PREFIX "bz-middle-pos", 50, 1, 99, NULL, MIDDLE_POS_TEXT, MIDDLE_POS_LONGTEXT, false );
#ifdef GAMMA
#define RGAMMA_TEXT N_("Gamma (Red) correction")
#define RGAMMA_LONGTEXT N_("Select the gamma for the correction of blended zone (Red or Y component)")
    add_float_with_range( CFG_PREFIX "bz-gamma-red", 1, 0, 5, NULL, RGAMMA_TEXT, RGAMMA_LONGTEXT, true );

#define GGAMMA_TEXT N_("Gamma (Green) correction")
#define GGAMMA_LONGTEXT N_("Select the gamma for the correction of blended zone (Green or U component)")
    add_float_with_range( CFG_PREFIX "bz-gamma-green", 1, 0, 5, NULL, GGAMMA_TEXT, GGAMMA_LONGTEXT, true );

#define BGAMMA_TEXT N_("Gamma (Blue) correction")
#define BGAMMA_LONGTEXT N_("Select the gamma for the correction of blended zone (Blue or V component)")
    add_float_with_range( CFG_PREFIX "bz-gamma-blue", 1, 0, 5, NULL, BGAMMA_TEXT, BGAMMA_LONGTEXT, true );
#endif
#define RGAMMA_BC_TEXT N_("Black Crush for Red")
#define RGAMMA_BC_LONGTEXT N_("Select the Black Crush of blended zone (Red or Y component)")
#define GGAMMA_BC_TEXT N_("Black Crush for Green")
#define GGAMMA_BC_LONGTEXT N_("Select the Black Crush of blended zone (Green or U component)")
#define BGAMMA_BC_TEXT N_("Black Crush for Blue")
#define BGAMMA_BC_LONGTEXT N_("Select the Black Crush of blended zone (Blue or V component)")

#define RGAMMA_WC_TEXT N_("White Crush for Red")
#define RGAMMA_WC_LONGTEXT N_("Select the White Crush of blended zone (Red or Y component)")
#define GGAMMA_WC_TEXT N_("White Crush for Green")
#define GGAMMA_WC_LONGTEXT N_("Select the White Crush of blended zone (Green or U component)")
#define BGAMMA_WC_TEXT N_("White Crush for Blue")
#define BGAMMA_WC_LONGTEXT N_("Select the White Crush of blended zone (Blue or V component)")

#define RGAMMA_BL_TEXT N_("Black Level for Red")
#define RGAMMA_BL_LONGTEXT N_("Select the Black Level of blended zone (Red or Y component)")
#define GGAMMA_BL_TEXT N_("Black Level for Green")
#define GGAMMA_BL_LONGTEXT N_("Select the Black Level of blended zone (Green or U component)")
#define BGAMMA_BL_TEXT N_("Black Level for Blue")
#define BGAMMA_BL_LONGTEXT N_("Select the Black Level of blended zone (Blue or V component)")

#define RGAMMA_WL_TEXT N_("White Level for Red")
#define RGAMMA_WL_LONGTEXT N_("Select the White Level of blended zone (Red or Y component)")
#define GGAMMA_WL_TEXT N_("White Level for Green")
#define GGAMMA_WL_LONGTEXT N_("Select the White Level of blended zone (Green or U component)")
#define BGAMMA_WL_TEXT N_("White Level for Blue")
#define BGAMMA_WL_LONGTEXT N_("Select the White Level of blended zone (Blue or V component)")
    add_integer_with_range( CFG_PREFIX "bz-blackcrush-red", 140, 0, 255, NULL, RGAMMA_BC_TEXT, RGAMMA_BC_LONGTEXT, true );
    add_integer_with_range( CFG_PREFIX "bz-blackcrush-green", 140, 0, 255, NULL, GGAMMA_BC_TEXT, GGAMMA_BC_LONGTEXT, true );
    add_integer_with_range( CFG_PREFIX "bz-blackcrush-blue", 140, 0, 255, NULL, BGAMMA_BC_TEXT, BGAMMA_BC_LONGTEXT, true );
    add_integer_with_range( CFG_PREFIX "bz-whitecrush-red", 200, 0, 255, NULL, RGAMMA_WC_TEXT, RGAMMA_WC_LONGTEXT, true );
    add_integer_with_range( CFG_PREFIX "bz-whitecrush-green", 200, 0, 255, NULL, GGAMMA_WC_TEXT, GGAMMA_WC_LONGTEXT, true );
    add_integer_with_range( CFG_PREFIX "bz-whitecrush-blue", 200, 0, 255, NULL, BGAMMA_WC_TEXT, BGAMMA_WC_LONGTEXT, true );
    add_integer_with_range( CFG_PREFIX "bz-blacklevel-red", 150, 0, 255, NULL, RGAMMA_BL_TEXT, RGAMMA_BL_LONGTEXT, true );
    add_integer_with_range( CFG_PREFIX "bz-blacklevel-green", 150, 0, 255, NULL, GGAMMA_BL_TEXT, GGAMMA_BL_LONGTEXT, true );
    add_integer_with_range( CFG_PREFIX "bz-blacklevel-blue", 150, 0, 255, NULL, BGAMMA_BL_TEXT, BGAMMA_BL_LONGTEXT, true );
    add_integer_with_range( CFG_PREFIX "bz-whitelevel-red", 0, 0, 255, NULL, RGAMMA_WL_TEXT, RGAMMA_WL_LONGTEXT, true );
    add_integer_with_range( CFG_PREFIX "bz-whitelevel-green", 0, 0, 255, NULL, GGAMMA_WL_TEXT, GGAMMA_WL_LONGTEXT, true );
    add_integer_with_range( CFG_PREFIX "bz-whitelevel-blue", 0, 0, 255, NULL, BGAMMA_WL_TEXT, BGAMMA_WL_LONGTEXT, true );
#ifndef SYS_MINGW32
#define XINERAMA_TEXT N_("Xinerama option")
#define XINERAMA_LONGTEXT N_("Uncheck if you have not used xinerama")
    add_bool( CFG_PREFIX "xinerama", 1, NULL, XINERAMA_TEXT, XINERAMA_LONGTEXT, true );
#endif
#endif

    add_string( CFG_PREFIX "active", NULL, NULL, ACTIVE_TEXT, ACTIVE_LONGTEXT, true );

    add_shortcut( "panoramix" );
    set_callbacks( Create, Destroy );
vlc_module_end();

static const char *const ppsz_filter_options[] = {
    "cols", "rows", "offset-x", "bz-length", "bz-height", "attenuate",
    "bz-begin", "bz-middle", "bz-end", "bz-middle-pos", "bz-gamma-red",
    "bz-gamma-green", "bz-gamma-blue", "bz-blackcrush-red",
    "bz-blackcrush-green", "bz-blackcrush-blue", "bz-whitecrush-red",
    "bz-whitecrush-green", "bz-whitecrush-blue", "bz-blacklevel-red",
    "bz-blacklevel-green", "bz-blacklevel-blue", "bz-whitelevel-red",
    "bz-whitelevel-green", "bz-whitelevel-blue", "xinerama", "active",
    NULL
};

/*****************************************************************************
 * vout_sys_t: Wall video output method descriptor
 *****************************************************************************
 * This structure is part of the video output thread descriptor.
 * It describes the Wall specific properties of an output thread.
 *****************************************************************************/
struct vout_sys_t
{
#ifdef OVERLAP
    bool   b_autocrop;
    bool   b_attenuate;
    unsigned int bz_length, bz_height, bz_begin, bz_middle, bz_end, bz_middle_pos;
    unsigned int i_ratio_max;
    unsigned int i_ratio;
    unsigned int a_0, a_1, a_2;
    bool     b_has_changed;
    int lambda[2][VOUT_MAX_PLANES][500];
    int cstYUV[2][VOUT_MAX_PLANES][500];
    int lambda2[2][VOUT_MAX_PLANES][500];
    int cstYUV2[2][VOUT_MAX_PLANES][500];
    unsigned int i_halfLength;
    unsigned int i_halfHeight;
    int i_offset_x;
    int i_offset_y;
#ifdef GAMMA
    float        f_gamma_red, f_gamma_green, f_gamma_blue;
    float         f_gamma[VOUT_MAX_PLANES];
    uint8_t         LUT[VOUT_MAX_PLANES][ACCURACY + 1][256];
#ifdef PACKED_YUV
    uint8_t         LUT2[VOUT_MAX_PLANES][256][500];
#endif
#endif
#ifndef SYS_MINGW32
    bool   b_xinerama;
#endif
#endif
    int    i_col;
    int    i_row;
    int    i_vout;
    struct vout_list_t
    {
        bool b_active;
        int i_width;
        int i_height;
        vout_thread_t *p_vout;
    } *pp_vout;
};



/*****************************************************************************
 * Control: control facility for the vout (forwards to child vout)
 *****************************************************************************/
static int Control( vout_thread_t *p_vout, int i_query, va_list args )
{
    int i_row, i_col, i_vout = 0;

    for( i_row = 0; i_row < p_vout->p_sys->i_row; i_row++ )
    {
        for( i_col = 0; i_col < p_vout->p_sys->i_col; i_col++ )
        {
            vout_vaControl( p_vout->p_sys->pp_vout[ i_vout ].p_vout,
                            i_query, args );
            i_vout++;
        }
    }
    return VLC_SUCCESS;
}

/*****************************************************************************
 * Create: allocates Wall video thread output method
 *****************************************************************************
 * This function allocates and initializes a Wall vout method.
 *****************************************************************************/
static int Create( vlc_object_t *p_this )
{
    vout_thread_t *p_vout = (vout_thread_t *)p_this;
    char *psz_method, *psz_tmp, *psz_method_tmp;