Files
veejay/veejay-ng/pluginpack/lvd_displacement.c
Niels Elburg a243e54af0 added 3 more plugins to veejay-ng 's plugin base
git-svn-id: svn://code.dyne.org/veejay/trunk@626 eb8d1916-c9e9-0310-b8de-cf0c9472ead5
2006-10-08 20:43:21 +00:00

246 lines
7.2 KiB
C

/*
* LIBVJE - veejay fx library
*
* Copyright(C)2006 Niels Elburg <nelburg@looze.net>
* See COPYING for software license and distribution details
*/
#define IS_LIVIDO_PLUGIN
#include <livido.h>
LIVIDO_PLUGIN
#include "utils.h"
#include "livido-utils.c"
livido_init_f init_instance( livido_port_t *my_instance )
{
return LIVIDO_NO_ERROR;
}
livido_deinit_f deinit_instance( livido_port_t *my_instance )
{
return LIVIDO_NO_ERROR;
}
livido_process_f process_instance( livido_port_t *my_instance, double timecode )
{
int len =0;
int x,y;
uint8_t *A[4] = {NULL,NULL,NULL,NULL};
uint8_t *O[4]= {NULL,NULL,NULL,NULL};
uint8_t *B[4] = { NULL,NULL,NULL,NULL };
int palette[3];
int w[3];
int h[3];
int error = lvd_extract_channel_values( my_instance, "in_channels", 0, &w[0], &h[0], A, &palette[0] );
if( error != LIVIDO_NO_ERROR )
return LIVIDO_ERROR_HARDWARE; //@ error codes in livido flanky
error = lvd_extract_channel_values( my_instance, "in_channels", 1, &w[1], &h[1], B, &palette[1] );
if( error != LIVIDO_NO_ERROR )
return LIVIDO_ERROR_HARDWARE; //@ error codes in livido flanky
error = lvd_extract_channel_values( my_instance, "out_channels", 0, &w[2],&h[2], O,&palette[2] );
if( error != LIVIDO_NO_ERROR )
return LIVIDO_ERROR_HARDWARE; //@ error codes in livido flanky
#ifdef STRICT_CHECKING
assert( w[0] == w[1] );
assert( h[0] == h[1] );
assert( w[2] == w[1] );
assert( h[2] == h[1] );
assert( palette[0] == palette[1] );
assert( palette[2] == palette[1] );
assert( A[0] != NULL );
assert( A[1] != NULL );
assert( A[2] != NULL );
assert( B[0] != NULL );
assert( B[1] != NULL );
assert( B[2] != NULL );
assert( O[0] != NULL );
assert( O[1] != NULL );
assert( O[2] != NULL );
#endif
int uv_len = lvd_uv_plane_len( palette[0],w[0],h[0] );
len = w[0] * h[0];
double h_scale = lvd_extract_param_number( my_instance, "in_parameters", 0 );
double v_scale = lvd_extract_param_number( my_instance, "in_parameters", 1 );
int black_border = lvd_extract_param_boolean( my_instance, "in_parameters", 2 );
const int wid = w[0];
const int hei = h[0];
double tmp = 0;
int dx,dy,nx,ny;
if( black_border)
{
for(y=0; y < hei; y++)
{
for(x=0; x < wid ; x++)
{
// calculate new location of pixel
tmp = (double)(B[0][(y*wid+x)] - 128);
// new x offset
dx = (int)(v_scale * tmp); //@rat
// new y offset
dy = (int)(h_scale * tmp); //@ra
// new pixel coordinates
nx = x + dx;
ny = y + dy;
if( nx < 0 || ny < 0 || nx > wid || ny >= hei )
{
O[0][y*wid+x] = 16;
O[1][y*wid+x] = 128;
O[2][y*wid+x] = 128;
}
else
{
O[0][y*wid+x] = A[0][ny * wid + nx];
O[1][y*wid+x] = A[1][ny * wid + nx];
O[2][y*wid+x] = A[2][ny * wid + nx];
}
}
}
}
else
{
for(y=0; y < hei; y++)
{
for(x=0; x < wid ; x++)
{
// calculate new location of pixel
tmp = (double)(B[0][(y*wid+x)] - 128);
// new x offset
dx = (int)(v_scale * tmp); //@rat
// new y offset
dy = (int)(h_scale * tmp); //@ra
// new pixel coordinates
nx = x + dx;
ny = y + dy;
while(nx < 0)
nx+=wid;
while(ny < 0)
ny+=hei;
if( ny >= hei ) ny = hei -1;
if( nx > wid ) nx = wid;
// put pixels from local copy
O[0][y*wid+x] = A[0][ny * wid + nx];
O[1][y*wid+x] = A[1][ny * wid + nx];
O[2][y*wid+x] = A[2][ny * wid + nx];
}
}
}
return LIVIDO_NO_ERROR;
}
livido_port_t *livido_setup(livido_setup_t list[], int version)
{
LIVIDO_IMPORT(list);
livido_port_t *port = NULL;
livido_port_t *in_params[3];
livido_port_t *in_chans[2];
livido_port_t *out_chans[1];
livido_port_t *info = NULL;
livido_port_t *filter = NULL;
info = livido_port_new( LIVIDO_PORT_TYPE_PLUGIN_INFO );
port = info;
livido_set_string_value( port, "maintainer", "Niels");
livido_set_string_value( port, "version","1");
filter = livido_port_new( LIVIDO_PORT_TYPE_FILTER_CLASS );
livido_set_int_value( filter, "api_version", LIVIDO_API_VERSION );
livido_set_voidptr_value( filter, "deinit_func", &deinit_instance );
livido_set_voidptr_value( filter, "init_func", &init_instance );
livido_set_voidptr_value( filter, "process_func", &process_instance );
port = filter;
livido_set_string_value( port, "name", "Displacement Mapping");
livido_set_string_value( port, "description", "Displacement Mapping");
livido_set_string_value( port, "author", "Niels Elburg");
livido_set_int_value( port, "flags", 0);
livido_set_string_value( port, "license", "GPL2");
livido_set_int_value( port, "version", 1);
int palettes0[] = {
LIVIDO_PALETTE_YUV444P,
0
};
in_params[0] = livido_port_new( LIVIDO_PORT_TYPE_PARAMETER_TEMPLATE );
port = in_params[0];
livido_set_string_value(port, "name", "X displace" );
livido_set_string_value(port, "kind", "NUMBER" );
livido_set_double_value( port, "min", 0.0 );
livido_set_double_value( port, "max", 1.0 );
livido_set_double_value( port, "default", 0.1 );
livido_set_string_value( port, "description" ,"Displacement in horizontal direction");
in_params[1] = livido_port_new( LIVIDO_PORT_TYPE_PARAMETER_TEMPLATE );
port = in_params[1];
livido_set_string_value(port, "name", "Y displace" );
livido_set_string_value(port, "kind", "NUMBER" );
livido_set_double_value( port, "min", 0.0 );
livido_set_double_value( port, "max", 1.0 );
livido_set_double_value( port, "default", 0.1 );
livido_set_string_value( port, "description" ,"Displacement in vertical direction");
in_params[2] = livido_port_new( LIVIDO_PORT_TYPE_PARAMETER_TEMPLATE );
port = in_params[2];
livido_set_string_value(port, "name", "Drop" );
livido_set_string_value(port, "kind", "SWITCH" );
livido_set_boolean_value( port, "default", 0 );
livido_set_string_value( port, "description" ,"Make pixels that drop outside black");
in_chans[0] = livido_port_new( LIVIDO_PORT_TYPE_CHANNEL_TEMPLATE );
port = in_chans[0];
livido_set_string_value( port, "name", "Channel A");
livido_set_int_array( port, "palette_list", 1, palettes0);
livido_set_int_value( port, "flags", 0);
in_chans[1] = livido_port_new( LIVIDO_PORT_TYPE_CHANNEL_TEMPLATE );
port = in_chans[1];
livido_set_string_value( port, "name", "Greyscale Channel B");
livido_set_int_array( port, "palette_list", 1, palettes0);
livido_set_int_value( port, "flags", 0);
out_chans[0] = livido_port_new( LIVIDO_PORT_TYPE_CHANNEL_TEMPLATE );
port = out_chans[0];
livido_set_string_value( port, "name", "Output Channel");
livido_set_int_array( port, "palette_list", 1, palettes0);
livido_set_int_value( port, "flags", 0);
livido_set_portptr_array( filter, "in_channel_templates", 2 , in_chans );
livido_set_portptr_array( filter, "out_parameter_templates",0, NULL );
livido_set_portptr_array( filter, "in_parameter_templates",3, in_params );
livido_set_portptr_array( filter, "out_channel_templates", 1, out_chans );
livido_set_portptr_value(info, "filters", filter);
return info;
}