From 213978fa8a868661dda88e6b4e7cacec1c90677a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Pablo=20Mart=C3=ADn?= Date: Sun, 7 Sep 2003 21:45:05 +0000 Subject: Updating pdp to current version 0.12.2 svn path=/trunk/externals/pdp/; revision=941 --- modules/image_special/pdp_chrot.c | 144 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 modules/image_special/pdp_chrot.c (limited to 'modules/image_special/pdp_chrot.c') diff --git a/modules/image_special/pdp_chrot.c b/modules/image_special/pdp_chrot.c new file mode 100644 index 0000000..27993c6 --- /dev/null +++ b/modules/image_special/pdp_chrot.c @@ -0,0 +1,144 @@ +/* + * Pure Data Packet module. + * Copyright (c) by Tom Schouten + * + * 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_base.h" +#include + + +typedef struct pdp_chrot_struct +{ + t_pdp_base x_base; + + float x_matrix[4]; + void *x_crot2d; + +} t_pdp_chrot; + + + +static void pdp_chrot_process(t_pdp_chrot *x) +{ + int packet; + t_pdp *header; + void *data; + unsigned int w,h,size,v_offset; + short int *idata; + + + /* get packet & info */ + packet = pdp_base_get_packet(x, 0); + header = pdp_packet_header(packet); + data = pdp_packet_data (packet); + + /* only process if we have a vlid yv12 image */ + if ((header) && (PDP_IMAGE == header->type) && (PDP_IMAGE_YV12 == header->info.image.encoding)){ + + w = header->info.image.width; + h = header->info.image.height; + + size = w*h; + v_offset = size; + + idata = (short int *)data; + + + /* 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_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_base_free(x); + pdp_imageproc_crot2d_delete(x->x_crot2d); +} + +t_class *pdp_chrot_class; + + + +void *pdp_chrot_new(t_floatarg f) +{ + t_pdp_chrot *x = (t_pdp_chrot *)pd_new(pdp_chrot_class); + + pdp_base_init(x); + pdp_base_add_gen_inlet(x, gensym("float"), gensym("angle")); + pdp_base_add_pdp_outlet(x); + pdp_base_set_process_method(x, (t_pdp_method)pdp_chrot_process); + + 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); + + pdp_base_setup(pdp_chrot_class); + class_addmethod(pdp_chrot_class, (t_method)pdp_chrot_angle_degrees, gensym("angle"), A_DEFFLOAT, A_NULL); + +} + +#ifdef __cplusplus +} +#endif -- cgit v1.2.1