diff options
Diffstat (limited to 'modules/pdp_chrot.c')
| -rw-r--r-- | modules/pdp_chrot.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/modules/pdp_chrot.c b/modules/pdp_chrot.c new file mode 100644 index 0000000..5181195 --- /dev/null +++ b/modules/pdp_chrot.c @@ -0,0 +1,201 @@ +/* + * Pure Data Packet module. + * Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org> + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + + + +#include "pdp.h" +#include "pdp_mmx.h" +#include <math.h> + + +typedef struct pdp_chrot_struct +{ + t_object x_obj; + t_float x_f; + + t_outlet *x_outlet0; + + int x_packet0; + int x_queue_id; + int x_dropped; // indicate if a packet was dropped during register_rw cycle + + int x_channel; + + float x_matrix[4]; + + void *x_crot2d; + +} t_pdp_chrot; + + + +static void pdp_chrot_process_yv12(t_pdp_chrot *x) +{ + t_pdp *header0 = pdp_packet_header(x->x_packet0); + void *data0 = pdp_packet_data (x->x_packet0); + + unsigned int w = header0->info.image.width; + unsigned int h = header0->info.image.height; + + unsigned int size = w*h; + unsigned int v_offset = size; + + short int * idata = (short int *)data0; + + + /* color rotation for 2 colour planes */ + pdp_imageproc_crot2d_process(x->x_crot2d, idata + v_offset, w>>1, h>>1); + + + return; + + +} + +static void pdp_chrot_process(t_pdp_chrot *x) +{ + t_pdp *header0 = pdp_packet_header(x->x_packet0); + + /* check data packets */ + + if ((header0) && (PDP_IMAGE == header0->type)){ + + /* pdp_chrot_process inputs and write into active inlet */ + switch(header0->info.image.encoding){ + + case PDP_IMAGE_YV12: + pdp_chrot_process_yv12(x); + break; + + case PDP_IMAGE_GREY: + break; + + default: + break; + /* don't know the type, so dont pdp_chrot_process */ + + } + } + +} + +static void pdp_chrot_sendpacket(t_pdp_chrot *x) +{ + /* unregister and propagate if valid packet */ + pdp_pass_if_valid(x->x_outlet0, &x->x_packet0); +} + +static void pdp_chrot_input_0(t_pdp_chrot *x, t_symbol *s, t_floatarg f) +{ + + int p = (int)f; + + if (s== gensym("register_rw")) x->x_dropped = pdp_packet_copy_rw_or_drop(&x->x_packet0, p); + + + if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped)){ + + + /* add the process method and callback to the process queue */ + + pdp_queue_add(x, pdp_chrot_process, pdp_chrot_sendpacket, &x->x_queue_id); + } + +} + + +static void pdp_chrot_setelement(t_pdp_chrot *x, int element, float f) +{ + x->x_matrix[element] = f; + +} + +static void pdp_chrot_angle_radians(t_pdp_chrot *x, t_floatarg angle) +{ + float c = cos(angle); + float s = sin(angle); + + pdp_chrot_setelement(x, 0, c); + pdp_chrot_setelement(x, 1, s); + pdp_chrot_setelement(x, 2, -s); + pdp_chrot_setelement(x, 3, c); + + pdp_imageproc_crot2d_setmatrix(x->x_crot2d, x->x_matrix); +} + +static void pdp_chrot_angle_degrees(t_pdp_chrot *x, t_floatarg angle) +{ + pdp_chrot_angle_radians(x, (angle * (M_PI / 180.f))); + +} + +static void pdp_chrot_free(t_pdp_chrot *x) +{ + pdp_queue_finish(x->x_queue_id); + pdp_imageproc_crot2d_delete(x->x_crot2d); + pdp_packet_mark_unused(x->x_packet0); + +} + +t_class *pdp_chrot_class; + + + +void *pdp_chrot_new(t_floatarg f) +{ + t_pdp_chrot *x = (t_pdp_chrot *)pd_new(pdp_chrot_class); + + inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("angle")); + + x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); + + x->x_packet0 = -1; + x->x_queue_id = -1; + + x->x_crot2d = pdp_imageproc_crot2d_new(); + pdp_chrot_angle_radians(x, 0.0f); + + + return (void *)x; +} + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +void pdp_chrot_setup(void) +{ + + + pdp_chrot_class = class_new(gensym("pdp_chrot"), (t_newmethod)pdp_chrot_new, + (t_method)pdp_chrot_free, sizeof(t_pdp_chrot), 0, A_DEFFLOAT, A_NULL); + + + class_addmethod(pdp_chrot_class, (t_method)pdp_chrot_angle_degrees, gensym("angle"), A_DEFFLOAT, A_NULL); + class_addmethod(pdp_chrot_class, (t_method)pdp_chrot_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL); + +} + +#ifdef __cplusplus +} +#endif |