From 9b8745d5250c9d0b60c9aa5a77f58a3fcddf1076 Mon Sep 17 00:00:00 2001 From: Tom Schouten Date: Tue, 21 Jan 2003 10:27:33 +0000 Subject: This commit was generated by cvs2svn to compensate for changes in r352, which included commits to RCS files with non-trunk default branches. svn path=/trunk/externals/pdp/; revision=353 --- modules/pdp_zoom.c | 264 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 264 insertions(+) create mode 100644 modules/pdp_zoom.c (limited to 'modules/pdp_zoom.c') diff --git a/modules/pdp_zoom.c b/modules/pdp_zoom.c new file mode 100644 index 0000000..33207ce --- /dev/null +++ b/modules/pdp_zoom.c @@ -0,0 +1,264 @@ +/* + * 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_resample.h" + + + +typedef struct pdp_zoom_struct +{ + t_object x_obj; + t_float x_f; + + t_outlet *x_outlet0; + + + int x_packet0; + int x_packet1; + int x_dropped; + int x_queue_id; + + float x_zoom_x; + float x_zoom_y; + + float x_center_x; + float x_center_y; + + int x_quality; //not used + + +} t_pdp_zoom; + + +static void pdp_zoom_process_yv12(t_pdp_zoom *x) +{ + t_pdp *header0 = pdp_packet_header(x->x_packet0); + t_pdp *header1 = pdp_packet_header(x->x_packet1); + void *data0 = pdp_packet_data (x->x_packet0); + void *data1 = pdp_packet_data (x->x_packet1); + + unsigned int w = header0->info.image.width; + unsigned int h = header0->info.image.height; + + short int *src_image = (short int *)data0; + short int *dst_image = (short int *)data1; + + unsigned int size = w * h; + unsigned int voffset = size; + unsigned int uoffset = size + (size>>2); + + + pdp_resample_zoom_tiled_bilin(src_image, dst_image, w, h, x->x_zoom_x, x->x_zoom_y, x->x_center_x, x->x_center_y); + pdp_resample_zoom_tiled_bilin(src_image+voffset, dst_image+voffset, w>>1, h>>1, x->x_zoom_x, x->x_zoom_y, x->x_center_x, x->x_center_y); + pdp_resample_zoom_tiled_bilin(src_image+uoffset, dst_image+uoffset, w>>1, h>>1, x->x_zoom_x, x->x_zoom_y, x->x_center_x, x->x_center_y); + + return; +} + +static void pdp_zoom_process_grey(t_pdp_zoom *x) +{ + + t_pdp *header0 = pdp_packet_header(x->x_packet0); + t_pdp *header1 = pdp_packet_header(x->x_packet1); + void *data0 = pdp_packet_data (x->x_packet0); + void *data1 = pdp_packet_data (x->x_packet1); + + unsigned int w = header0->info.image.width; + unsigned int h = header0->info.image.height; + + short int *src_image = (short int *)data0; + short int *dst_image = (short int *)data1; + + pdp_resample_zoom_tiled_bilin(src_image, dst_image, w, h, x->x_zoom_x, x->x_zoom_y, x->x_center_x, x->x_center_y); + + return; + +} + +static void pdp_zoom_sendpacket(t_pdp_zoom *x) +{ + /* delete source packet */ + pdp_packet_mark_unused(x->x_packet0); + x->x_packet0 = -1; + + /* unregister and propagate if valid dest packet */ + pdp_pass_if_valid(x->x_outlet0, &x->x_packet1); +} + +static void pdp_zoom_process(t_pdp_zoom *x) +{ + t_pdp *header0 = pdp_packet_header(x->x_packet0); + + /* check data packets */ + + if ((header0) && (PDP_IMAGE == header0->type)){ + + + /* type hub */ + switch(header0->info.image.encoding){ + + case PDP_IMAGE_YV12: + x->x_packet1 = pdp_packet_clone_rw(x->x_packet0); + pdp_queue_add(x, pdp_zoom_process_yv12, pdp_zoom_sendpacket, &x->x_queue_id); + break; + + case PDP_IMAGE_GREY: + x->x_packet1 = pdp_packet_clone_rw(x->x_packet0); + pdp_queue_add(x, pdp_zoom_process_grey, pdp_zoom_sendpacket, &x->x_queue_id); + break; + + default: + break; + /* don't know the type, so dont process */ + + } + } + +} + + + + +static void pdp_zoom_input_0(t_pdp_zoom *x, t_symbol *s, t_floatarg f) +{ + + int p = (int)f; + int passes, i; + + if (s== gensym("register_rw")) x->x_dropped = pdp_packet_copy_ro_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_zoom_process(x); + + } + +} + + + + +static void pdp_zoom_x(t_pdp_zoom *x, t_floatarg f) +{ + x->x_zoom_x = f; +} + +static void pdp_zoom_y(t_pdp_zoom *x, t_floatarg f) +{ + x->x_zoom_y = f; +} + +static void pdp_zoom(t_pdp_zoom *x, t_floatarg f) +{ + pdp_zoom_x(x, f); + pdp_zoom_y(x, f); +} + +static void pdp_zoom_center_x(t_pdp_zoom *x, t_floatarg f) +{ + x->x_center_x = (f + 0.5f); +} + +static void pdp_zoom_center_y(t_pdp_zoom *x, t_floatarg f) +{ + x->x_center_y = (f + 0.5f); +} +static void pdp_zoom_center(t_pdp_zoom *x, t_floatarg fx, t_floatarg fy) +{ + pdp_zoom_center_x(x, fx); + pdp_zoom_center_y(x, fy); +} + +static void pdp_zoom_quality(t_pdp_zoom *x, t_floatarg f) +{ + if (f==0) x->x_quality = 0; + if (f==1) x->x_quality = 1; +} + + +t_class *pdp_zoom_class; + + + +void pdp_zoom_free(t_pdp_zoom *x) +{ + pdp_queue_finish(x->x_queue_id); + pdp_packet_mark_unused(x->x_packet0); + pdp_packet_mark_unused(x->x_packet1); +} + +void *pdp_zoom_new(t_floatarg fw, t_floatarg zoom) +{ + t_pdp_zoom *x = (t_pdp_zoom *)pd_new(pdp_zoom_class); + + inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("zoom")); + + + + x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); + + x->x_packet0 = -1; + x->x_packet1 = -1; + x->x_queue_id = -1; + + pdp_zoom_quality(x, 1); + pdp_zoom_center_x(x, 0); + pdp_zoom_center_y(x, 0); + + if (zoom = 0.0f) zoom = 1.0f; + pdp_zoom(x, zoom); + + return (void *)x; +} + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +void pdp_zoom_setup(void) +{ + + + pdp_zoom_class = class_new(gensym("pdp_zoom"), (t_newmethod)pdp_zoom_new, + (t_method)pdp_zoom_free, sizeof(t_pdp_zoom), 0, A_DEFFLOAT, A_DEFFLOAT, A_NULL); + + + class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_quality, gensym("quality"), A_FLOAT, A_NULL); + class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_center_x, gensym("centerx"), A_FLOAT, A_NULL); + class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_center_y, gensym("centery"), A_FLOAT, A_NULL); + class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_center, gensym("center"), A_FLOAT, A_FLOAT, A_NULL); + class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_x, gensym("zoomx"), A_FLOAT, A_NULL); + class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_y, gensym("zoomy"), A_FLOAT, A_NULL); + class_addmethod(pdp_zoom_class, (t_method)pdp_zoom, gensym("zoom"), A_FLOAT, A_NULL); + class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL); + +} + +#ifdef __cplusplus +} +#endif -- cgit v1.2.1