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_scale.c | 277 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 277 insertions(+) create mode 100644 modules/image_special/pdp_scale.c (limited to 'modules/image_special/pdp_scale.c') diff --git a/modules/image_special/pdp_scale.c b/modules/image_special/pdp_scale.c new file mode 100644 index 0000000..3c74bd8 --- /dev/null +++ b/modules/image_special/pdp_scale.c @@ -0,0 +1,277 @@ +/* + * 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_scale_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; + + unsigned int x_width; + unsigned int x_height; + int x_quality; + + +} t_pdp_scale; + + +static void pdp_scale_process_yv12(t_pdp_scale *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 src_w = header0->info.image.width; + unsigned int src_h = header0->info.image.height; + + unsigned int dst_w = header1->info.image.width; + unsigned int dst_h = header1->info.image.height; + + short int *src_image = (short int *)data0; + short int *dst_image = (short int *)data1; + + unsigned int src_size = src_w*src_h; + unsigned int src_voffset = src_size; + unsigned int src_uoffset = src_size + (src_size>>2); + + unsigned int dst_size = dst_w*dst_h; + unsigned int dst_voffset = dst_size; + unsigned int dst_uoffset = dst_size + (dst_size>>2); + + if (x->x_quality){ + pdp_resample_scale_bilin(src_image, dst_image, src_w, src_h, dst_w, dst_h); + pdp_resample_scale_bilin(src_image+src_voffset, dst_image+dst_voffset, src_w>>1, src_h>>1, dst_w>>1, dst_h>>1); + pdp_resample_scale_bilin(src_image+src_uoffset, dst_image+dst_uoffset, src_w>>1, src_h>>1, dst_w>>1, dst_h>>1); + } + else{ + pdp_resample_scale_nn(src_image, dst_image, src_w, src_h, dst_w, dst_h); + pdp_resample_scale_nn(src_image+src_voffset, dst_image+dst_voffset, src_w>>1, src_h>>1, dst_w>>1, dst_h>>1); + pdp_resample_scale_nn(src_image+src_uoffset, dst_image+dst_uoffset, src_w>>1, src_h>>1, dst_w>>1, dst_h>>1); + } + + return; +} + +static void pdp_scale_process_grey(t_pdp_scale *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 src_w = header0->info.image.width; + unsigned int src_h = header0->info.image.height; + + unsigned int dst_w = header1->info.image.width; + unsigned int dst_h = header1->info.image.height; + + short int *src_image = (short int *)data0; + short int *dst_image = (short int *)data1; + + if (x->x_quality) pdp_resample_scale_bilin(src_image, dst_image, src_w, src_h, dst_w, dst_h); + else pdp_resample_scale_nn(src_image, dst_image, src_w, src_h, dst_w, dst_h); + + return; + + +} + +static void pdp_scale_sendpacket(t_pdp_scale *x) +{ + /* delete source packet */ + pdp_packet_mark_unused(x->x_packet0); + x->x_packet0 = -1; + + /* unregister and propagate if valid dest packet */ + pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1); +} + +static void pdp_scale_process(t_pdp_scale *x) +{ + t_pdp_procqueue *q = pdp_queue_get_queue(); + t_pdp *header0 = pdp_packet_header(x->x_packet0); + + /* check data packets */ + + if ((header0) && (PDP_IMAGE == header0->type)){ + + /* if dims are equal, just send the packet */ + if ((header0->info.image.width == x->x_width) + && (header0->info.image.height == x->x_height)){ + x->x_packet1 = x->x_packet0; + x->x_packet0 = -1; + pdp_scale_sendpacket(x); + return; + } + + /* type hub */ + switch(header0->info.image.encoding){ + + case PDP_IMAGE_YV12: + x->x_packet1 = pdp_packet_new_image_YCrCb(x->x_width, x->x_height); + if(x->x_packet1 == -1){ + post("pdp_scale: can't allocate packet"); + return; + } + pdp_procqueue_add(q, x, pdp_scale_process_yv12, pdp_scale_sendpacket, &x->x_queue_id); + break; + + case PDP_IMAGE_GREY: + x->x_packet1 = pdp_packet_new_image_grey(x->x_width, x->x_height); + if(x->x_packet1 == -1){ + post("pdp_scale: can't allocate packet"); + return; + } + pdp_procqueue_add(q, x, pdp_scale_process_grey, pdp_scale_sendpacket, &x->x_queue_id); + break; + + default: + break; + /* don't know the type, so dont process */ + + } + } + +} + + + + +static void pdp_scale_input_0(t_pdp_scale *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_scale_process(x); + + } + +} + + + + +static void pdp_scale_width(t_pdp_scale *x, t_floatarg f) +{ + int i = (int)f; + if (i < 32) i = 32; + x->x_width = i; +} + +static void pdp_scale_height(t_pdp_scale *x, t_floatarg f) +{ + int i = (int)f; + if (i < 32) i = 32; + x->x_height = i; +} + + +static void pdp_scale_dim(t_pdp_scale *x, t_floatarg w, t_floatarg h) +{ + pdp_scale_width(x, w); + pdp_scale_height(x, h); +} + +static void pdp_scale_quality(t_pdp_scale *x, t_floatarg f) +{ + if (f==0) x->x_quality = 0; + if (f==1) x->x_quality = 1; +} + + +t_class *pdp_scale_class; + + + +void pdp_scale_free(t_pdp_scale *x) +{ + t_pdp_procqueue *q = pdp_queue_get_queue(); + pdp_procqueue_finish(q, x->x_queue_id); + pdp_packet_mark_unused(x->x_packet0); + pdp_packet_mark_unused(x->x_packet1); +} + +void *pdp_scale_new(t_floatarg fw, t_floatarg fh) +{ + t_pdp_scale *x = (t_pdp_scale *)pd_new(pdp_scale_class); + + x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); + + x->x_packet0 = -1; + x->x_packet1 = -1; + x->x_queue_id = -1; + + if ((fw != 0.0f) && (fh != 0.0f)) pdp_scale_dim(x, fw, fh); + else pdp_scale_dim(x, 320, 240); + + pdp_scale_quality(x, 1); + + return (void *)x; +} + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +void pdp_scale_setup(void) +{ + + + pdp_scale_class = class_new(gensym("pdp_scale"), (t_newmethod)pdp_scale_new, + (t_method)pdp_scale_free, sizeof(t_pdp_scale), 0, A_DEFFLOAT, A_DEFFLOAT, A_NULL); + + + class_addmethod(pdp_scale_class, (t_method)pdp_scale_quality, gensym("quality"), A_FLOAT, A_NULL); + class_addmethod(pdp_scale_class, (t_method)pdp_scale_width, gensym("width"), A_FLOAT, A_NULL); + class_addmethod(pdp_scale_class, (t_method)pdp_scale_height, gensym("height"), A_FLOAT, A_NULL); + class_addmethod(pdp_scale_class, (t_method)pdp_scale_dim, gensym("dim"), A_FLOAT, A_FLOAT, A_NULL); + class_addmethod(pdp_scale_class, (t_method)pdp_scale_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL); + +} + +#ifdef __cplusplus +} +#endif -- cgit v1.2.1