/* * LIBVJE - veejay fx library * * Copyright(C)2006 Niels Elburg * See COPYING for software license and distribution details */ #define IS_LIVIDO_PLUGIN #include 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; } /* PenCil sketch pixel Functions applies some artithematic on pixel a and b, */ typedef uint8_t (*_pcf) (uint8_t a, uint8_t b, int t_max); typedef uint8_t (*_pcbcr) (uint8_t a, uint8_t b); static uint8_t _pcf_dneg(uint8_t a, uint8_t b, int t_max) { uint8_t p = 255 - ( abs ( (255 - abs((255-a)-a)) - (255-abs((255-b)-b))) ); p = (abs(abs(p-b) - b)); return p; } static uint8_t _pcf_lghtn(uint8_t a, uint8_t b, int t_max) { uint8_t p = (a > b ? a : b ); return p; } static uint8_t _pcf_dneg2(uint8_t a,uint8_t b, int t_max) { uint8_t p = ( 255 - abs ( (255-a)- b ) ); return p; } static uint8_t _pcf_min(uint8_t a, uint8_t b, int t_max) { uint8_t p = ( (b < a) ? b : a); p = ( 255 - abs( (255-p) - b ) ); return p; } static uint8_t _pcf_max(uint8_t a,uint8_t b, int t_max) { int p = ( (b > a) ? b : a); p = ( 255 - ((255 - b) * (255 - b)) / p); return (uint8_t)p; } static uint8_t _pcf_pq(uint8_t a,uint8_t b, int t_max) { int p = 255 - ((255-a) * (255-a)) / a; int q = 255 - ((255-b) * (255-b)) / b; p = ( 255 - ((255-p) * (255 - a)) / q); return (uint8_t)p; } static uint8_t _pcf_color(uint8_t a, uint8_t b, int t_max) { uint8_t p = 255 - ( abs ( (255 - abs((255-a)-a)) - (255-abs((255-b)-b))) ); p = (abs(abs(p-b) - b)); p = p + b - (( p * b ) >> 8); return p; } static uint8_t _pcbcr_color(uint8_t a,uint8_t b) { int p = a - 128; int q = b - 128; return ( p + q - (( p * q ) >> 8) ) + 128 ; } static uint8_t _pcf_none(uint8_t a, uint8_t b, int t_max) { if( a >= 16 || a <= t_max) a = 16 ; else a = 240; return a; } /* get a pointer to a pixel function */ static _pcf _get_pcf(int type) { switch(type) { case 0: return &_pcf_dneg; case 3: return &_pcf_lghtn; case 1: return &_pcf_min; case 2: return &_pcf_max; case 5: return &_pcf_pq; case 6: return &_pcf_dneg2; case 7: return &_pcf_color; } return &_pcf_none; } /* PenCil sketch pixel Functions applies some artithematic on pixel a and b, */ livido_process_f process_instance( livido_port_t *my_instance, double timecode ) { int len =0; int i = 0; uint8_t *A[4] = {NULL,NULL,NULL,NULL}; uint8_t *O[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, "out_channels", 0, &w[1],&h[1], O,&palette[1] ); 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( palette[0] == palette[1] ); assert( A[0] != NULL ); assert( A[1] != NULL ); assert( A[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]; int type = lvd_extract_param_index( my_instance, "in_parameters", 0 ); double lt = lvd_extract_param_number( my_instance, "in_parameters", 1 ); double ht = lvd_extract_param_number( my_instance, "in_parameters",2 ); uint8_t min_threshold = 255 * lt; uint8_t max_threshold = 255 * ht; int m,d; /* get a pointer to a pixel blend function */ _pcf _pff = _get_pcf(type); _pcbcr _pcbcrff = &_pcbcr_color; int rlen = len - w[0] - 1; uint8_t y,yb; for ( i = 0; i < rlen ;i ++ ) { yb = y = A[0][i]; if(yb<16) yb=16; if( y >= min_threshold && y <= max_threshold ) { // sharpen m = ( A[0][i+1] + A[0][(i + w[0])] + A[0][ (i + w[0] + 1)] + 2 ) >> 2; d = y - m; d *= 500; d /= 100; m = m + d; /* a magical forumula to combine the pixel with the original*/ y = ((((y << 1) - (255 - m))>>1) + A[0][i])>>1; if(y < 16) y =16; O[0][i] = _pff(y,yb,max_threshold); } else O[0][i] = 0xff; } if( type != y ) { livido_memset( O[1], 128, uv_len ); livido_memset( O[2], 128, uv_len ); } else { uint8_t u,v; for( i = 0; i < uv_len; i ++ ) { u = A[1][i]; v = A[2][i]; if( u < 16 ) u = 16; if( v < 16 ) v = 16; O[1][i] = _pcbcrff(128, u); O[2][i] = _pcbcrff(128, v); } } 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[1]; 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", "Pencil Sketch"); livido_set_string_value( port, "description", "Artistify Image"); 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_YUV420P, LIVIDO_PALETTE_YUV422P, LIVIDO_PALETTE_YUV444P, 0 }; 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", 3, 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", 3, palettes0); livido_set_int_value( port, "flags", 0); in_params[0] = livido_port_new( LIVIDO_PORT_TYPE_PARAMETER_TEMPLATE ); port = in_params[0]; livido_set_string_value(port, "name", "Mode" ); livido_set_string_value(port, "kind", "INDEX" ); livido_set_int_value( port, "min", 0 ); livido_set_int_value( port, "max", 8 ); livido_set_int_value( port, "default", 0 ); livido_set_string_value( port, "description" ,"Pencil Type"); in_params[1] = livido_port_new( LIVIDO_PORT_TYPE_PARAMETER_TEMPLATE ); port = in_params[1]; livido_set_string_value(port, "name", "Min Threshold" ); 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" ,"Minimum threshold"); in_params[2] = livido_port_new( LIVIDO_PORT_TYPE_PARAMETER_TEMPLATE ); port = in_params[2]; livido_set_string_value(port, "name", "Maximum Threshold" ); 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", 0.9 ); livido_set_string_value( port, "description" ,"Maximum threshold"); livido_set_portptr_array( filter, "in_channel_templates", 1 , 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; }