From b694c274836ac8b04d644711ac324eac2e9ab83e Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Fri, 16 Dec 2005 01:05:40 +0000 Subject: checking in pdp 0.12.4 from http://zwizwa.fartit.com/pd/pdp/pdp-0.12.4.tar.gz svn path=/trunk/externals/pdp/; revision=4232 --- modules/image_special/pdp_scope.c | 317 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 317 insertions(+) create mode 100644 modules/image_special/pdp_scope.c (limited to 'modules/image_special/pdp_scope.c') diff --git a/modules/image_special/pdp_scope.c b/modules/image_special/pdp_scope.c new file mode 100644 index 0000000..4311a0b --- /dev/null +++ b/modules/image_special/pdp_scope.c @@ -0,0 +1,317 @@ +/* + * 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 + +#define BUFSIZE 2048 + +typedef struct pdp_scope_data +{ + short int random_seed[4]; + +}t_pdp_scope_data; + +typedef struct pdp_scope_struct +{ + t_object x_obj; + t_float x_f; + + t_outlet *x_outlet0; + + t_pdp_scope_data *x_data; + int x_packet0; + int x_queue_id; + + int x_pdp_image_type; + + unsigned int x_width; + unsigned int x_height; + + float *x_buffer; + int x_needle; + + +} t_pdp_scope; + + + +void pdp_scope_type(t_pdp_scope *x, t_symbol *s) +{ + if (gensym("yv12") == s) {x->x_pdp_image_type = PDP_IMAGE_YV12; return;} + if (gensym("grey") == s) {x->x_pdp_image_type = PDP_IMAGE_GREY; return;} + + x->x_pdp_image_type = -1; + +} + + + + + +static void pdp_scope_createpacket_yv12(t_pdp_scope *x) +{ + t_pdp *header; + + unsigned int w = x->x_width; + unsigned int h = x->x_height; + + unsigned int size = w*h; + unsigned int totalnbpixels = size + (size >> 1); + unsigned int packet_size = totalnbpixels << 1; + + x->x_packet0 = pdp_packet_new_image_YCrCb(w, h); + if(x->x_packet0 == -1){ + post("pdp_scope: can't allocate packet"); + return; + } + header = pdp_packet_header(x->x_packet0); + memset(pdp_packet_data(x->x_packet0), 0, packet_size); + +} + +static void pdp_scope_generate_yv12(t_pdp_scope *x) +{ + unsigned int w = x->x_width; + unsigned int h = x->x_height; + unsigned int size = w*h; + unsigned int totalnbpixels = size + (size >> 1); + short int *data = (short int *) pdp_packet_data(x->x_packet0); + + unsigned int i; + int offset = x->x_needle; + int val; + unsigned int y; + float fh2 = (float)(h/2); + + if (!data) return; + + + for (i=0; ix_buffer[(offset - w + i) & (BUFSIZE - 1)]); + if (y>=h) y = h-1; + + data[i + y*w] = 0x7fff; + } + + return; + +} + +static void pdp_scope_createpacket_grey(t_pdp_scope *x) +{ + t_pdp *header; + short int *data; + + unsigned int w = x->x_width; + unsigned int h = x->x_height; + + unsigned int size = w*h; + unsigned int totalnbpixels = size; + unsigned int packet_size = totalnbpixels << 1; + + /* create new packet */ + x->x_packet0 = pdp_packet_new_image_grey(w,h); + if(x->x_packet0 == -1){ + post("pdp_scope: can't allocate packet"); + return; + } + + + header = pdp_packet_header(x->x_packet0); + data = (short int *) pdp_packet_data(x->x_packet0); + + memset(pdp_packet_data(x->x_packet0), 0, packet_size); + +} + +static void pdp_scope_generate_grey(t_pdp_scope *x) +{ + unsigned int w = x->x_width; + unsigned int h = x->x_height; + unsigned int totalnbpixels = x->x_width * x->x_height; + short int *data = (short int *) pdp_packet_data(x->x_packet0); + + unsigned int i; + int offset = x->x_needle; + int val; + unsigned int y; + float fh2 = (float)(h/2); + + if (!data) return; + + for (i=0; ix_buffer[(offset - w + i) & (BUFSIZE - 1)]); + if (y>=h) y = h-1; + + data[i + y*w] = 0x7fff; + } + + return; +} + +static void pdp_scope_sendpacket(t_pdp_scope *x) +{ + /* propagate if valid */ + pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet0); +} + + +static void pdp_scope_bang(t_pdp_scope *x) +{ + + int encoding; + + /* if we have an active packet, don't do anything */ + if (-1 != x->x_packet0) return; + + switch(x->x_pdp_image_type){ + + case PDP_IMAGE_YV12: + pdp_scope_createpacket_yv12(x); // don't create inside thread!!! + pdp_scope_generate_yv12(x); + pdp_scope_sendpacket(x); + //pdp_queue_add(x, pdp_scope_generate_yv12, pdp_scope_sendpacket, &x->x_queue_id); + break; + + case PDP_IMAGE_GREY: + pdp_scope_createpacket_grey(x); // don't create inside thread!!! + pdp_scope_generate_grey(x); + pdp_scope_sendpacket(x); + //pdp_queue_add(x, pdp_scope_generate_grey, pdp_scope_sendpacket, &x->x_queue_id); + break; + + default: + break; + + } + + + /* release the packet */ + +} + + +static void pdp_scope_dim(t_pdp_scope *x, t_floatarg w, t_floatarg h) +{ + if (w<32.0f) w = 32.0f; + if (h<32.0f) h = 32.0f; + + x->x_width = (unsigned int)w; + x->x_height = (unsigned int)h; +} + + +static void pdp_scope_free(t_pdp_scope *x) +{ + + /* remove callback from process queue */ + t_pdp_procqueue *q = pdp_queue_get_queue(); + pdp_procqueue_finish(q, x->x_queue_id); + + + /* tidy up */ + pdp_packet_mark_unused(x->x_packet0); + pdp_dealloc(x->x_data); + +} +static t_int *pdp_scope_perform(t_int *w) +{ + + + t_float *in = (float *)(w[3]); + t_pdp_scope *x = (t_pdp_scope *)(w[1]); + t_int n = (t_int)(w[2]); + t_int i; + + t_int offset = x->x_needle; + + for (i=0; ix_buffer[(offset+i)&(BUFSIZE-1)] = in[i]; + + x->x_needle = (offset + n ) & (BUFSIZE - 1); + + return (w+4); + +} +static void pdp_scope_dsp(t_pdp_scope *x, t_signal **sp) +{ + dsp_add(pdp_scope_perform, 3, x, sp[0]->s_n, sp[0]->s_vec); + +} + +t_class *pdp_scope_class; + + + + +void *pdp_scope_new(void) +{ + int i; + + t_pdp_scope *x = (t_pdp_scope *)pd_new(pdp_scope_class); + + x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); + + x->x_packet0 = -1; + x->x_queue_id = -1; + x->x_width = 320; + x->x_height = 240; + x->x_f = 0.0; + + x->x_data = (t_pdp_scope_data *)pdp_alloc(sizeof(t_pdp_scope_data)); + + pdp_scope_type(x, gensym("yv12")); + + x->x_buffer = (float *)pdp_alloc(sizeof(float) * BUFSIZE); + x->x_needle = 0; + + return (void *)x; +} + + + +#ifdef __cplusplus +extern "C" +{ +#endif + + + +void pdp_scope_setup(void) +{ + + + pdp_scope_class = class_new(gensym("pdp_scope~"), (t_newmethod)pdp_scope_new, + (t_method)pdp_scope_free, sizeof(t_pdp_scope), 0, A_NULL); + + CLASS_MAINSIGNALIN(pdp_scope_class, t_pdp_scope, x_f); + + class_addmethod(pdp_scope_class, (t_method)pdp_scope_type, gensym("type"), A_SYMBOL, A_NULL); + class_addmethod(pdp_scope_class, (t_method)pdp_scope_dim, gensym("dim"), A_FLOAT, A_FLOAT, A_NULL); + class_addmethod(pdp_scope_class, (t_method)pdp_scope_bang, gensym("bang"), A_NULL); + class_addmethod(pdp_scope_class, (t_method)pdp_scope_dsp, gensym("dsp"), 0); +} + +#ifdef __cplusplus +} +#endif -- cgit v1.2.1