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-rw-r--r--modules/pdp_mix.c279
1 files changed, 279 insertions, 0 deletions
diff --git a/modules/pdp_mix.c b/modules/pdp_mix.c
new file mode 100644
index 0000000..9602c4b
--- /dev/null
+++ b/modules/pdp_mix.c
@@ -0,0 +1,279 @@
+/*
+ * 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"
+
+
+typedef struct pdp_mix_struct
+{
+ t_object x_obj;
+ t_float x_f;
+
+ t_outlet *x_outlet0;
+ t_outlet *x_outlet1;
+
+ int x_packet0; // hot packet
+ int x_packet1; // cold packet
+ int x_packet1next; // next cold packet
+ int x_dropped;
+
+ int x_queue_id; // identifier of method in the processing queue
+
+ void *x_mixer;
+
+ int x_extrapolate;
+
+} t_pdp_mix;
+
+
+
+static void pdp_mix_process_yv12(t_pdp_mix *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;
+
+
+ h = h + (h>>1);
+ pdp_imageproc_mix_process(x->x_mixer,(short int*)data0, (short int*)data1, w, h);
+
+ return;
+
+
+
+}
+
+static void pdp_mix_process_grey(t_pdp_mix *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;
+
+ pdp_imageproc_mix_process(x->x_mixer,(short int*)data0, (short int*)data1, w, h);
+
+ return;
+
+
+
+}
+
+static void pdp_mix_process(t_pdp_mix *x)
+{
+ int encoding;
+
+ /* check if image data packets are compatible */
+ if (pdp_type_compat_image(x->x_packet0, x->x_packet1)){
+
+ /* dispatch to process thread */
+ switch(pdp_packet_header(x->x_packet0)->info.image.encoding){
+
+ case PDP_IMAGE_YV12:
+ pdp_mix_process_yv12(x);
+ break;
+
+ case PDP_IMAGE_GREY:
+ pdp_mix_process_grey(x);
+ break;
+
+ default:
+ break;
+ /* don't know the type, so dont pdp_mix_process */
+
+ }
+ }
+
+}
+
+static void pdp_mix_sendpacket(t_pdp_mix *x)
+{
+ /* unregister and propagate if valid packet */
+ pdp_pass_if_valid(x->x_outlet0, &x->x_packet0);
+}
+
+static void pdp_mix_input_0(t_pdp_mix *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)){
+
+ /* if a cold packet was received in the meantime
+ swap it in, else keep the old one */
+
+ pdp_replace_if_valid(&x->x_packet1, &x->x_packet1next);
+
+
+ /* add the process method and callback to the process queue */
+
+ pdp_queue_add(x, pdp_mix_process, pdp_mix_sendpacket, &x->x_queue_id);
+ }
+
+}
+
+static void pdp_mix_input_1(t_pdp_mix *x, t_symbol *s, t_floatarg f)
+{
+ /* store the packet and drop
+ the old one, if there is any */
+
+ if(s == gensym("register_ro")) pdp_packet_copy_ro_or_drop(&x->x_packet1next, (int)f);
+
+}
+
+
+
+static void pdp_mix_mix(t_pdp_mix *x, t_floatarg f)
+{
+ float f2;
+ if (!x->x_extrapolate){
+ if (f < 0.0f) f = 0.0f;
+ if (f > 1.0f) f = 1.0f;
+ }
+
+ f2 = (1.0f - f);
+ pdp_imageproc_mix_setleftgain(x->x_mixer, f2);
+ pdp_imageproc_mix_setrightgain(x->x_mixer, f);
+
+}
+
+static void pdp_mix_mix1(t_pdp_mix *x, t_floatarg f)
+{
+ pdp_imageproc_mix_setleftgain(x->x_mixer, f);
+
+}
+static void pdp_mix_mix2(t_pdp_mix *x, t_floatarg f2)
+{
+ pdp_imageproc_mix_setrightgain(x->x_mixer, f2);
+}
+
+static void pdp_mix_extrapolate(t_pdp_mix *x, t_floatarg f)
+{
+ if (f == 0.0f) x->x_extrapolate = 0;
+ if (f == 1.0f) x->x_extrapolate = 1;
+}
+
+
+static void pdp_mix_free(t_pdp_mix *x)
+{
+ /* remove the method from the queue before deleting stuff */
+ pdp_queue_finish(x->x_queue_id);
+
+ pdp_packet_mark_unused(x->x_packet0);
+ pdp_packet_mark_unused(x->x_packet1);
+ pdp_packet_mark_unused(x->x_packet1next);
+
+ pdp_imageproc_mix_delete(x->x_mixer);
+}
+
+t_class *pdp_mix_class;
+t_class *pdp_mix2_class;
+
+
+void *pdp_mix_common_init(t_pdp_mix *x)
+{
+ int i;
+
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("pdp"), gensym("pdp1"));
+
+ x->x_outlet0 = outlet_new(&x->x_obj, &s_anything);
+ x->x_packet0 = -1;
+ x->x_packet1 = -1;
+ x->x_packet1next = -1;
+ x->x_queue_id = -1;
+ x->x_extrapolate = 0;
+
+
+ x->x_mixer = pdp_imageproc_mix_new();
+ pdp_mix_mix(x, 0.0f);
+
+
+ return (void *)x;
+}
+
+
+void *pdp_mix_new(t_floatarg mix)
+{
+ t_pdp_mix *x = (t_pdp_mix *)pd_new(pdp_mix_class);
+ pdp_mix_common_init(x);
+
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("mix"));
+ if (mix == 0.0f) mix = 0.5f;
+ pdp_mix_mix(x, mix);
+ return (void *)x;
+}
+
+void *pdp_mix2_new(t_floatarg mix1, t_floatarg mix2)
+{
+ t_pdp_mix *x = (t_pdp_mix *)pd_new(pdp_mix2_class);
+ pdp_mix_common_init(x);
+
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("mix1"));
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("mix2"));
+ if ((mix1 == 0.0f) && (mix2 == 0.0f)) mix1 = mix2 = 0.5f;
+ pdp_mix_mix1(x, mix1);
+ pdp_mix_mix2(x, mix2);
+ return (void *)x;
+}
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+
+void pdp_mix_setup(void)
+{
+
+
+ pdp_mix_class = class_new(gensym("pdp_mix"), (t_newmethod)pdp_mix_new,
+ (t_method)pdp_mix_free, sizeof(t_pdp_mix), 0, A_DEFFLOAT, A_NULL);
+
+ class_addmethod(pdp_mix_class, (t_method)pdp_mix_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_mix_class, (t_method)pdp_mix_input_1, gensym("pdp1"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_mix_class, (t_method)pdp_mix_mix, gensym("mix"), A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_mix_class, (t_method)pdp_mix_extrapolate, gensym("extrapolate"), A_DEFFLOAT, A_NULL);
+
+ pdp_mix2_class = class_new(gensym("pdp_mix2"), (t_newmethod)pdp_mix2_new,
+ (t_method)pdp_mix_free, sizeof(t_pdp_mix), 0, A_DEFFLOAT, A_DEFFLOAT, A_NULL);
+
+ class_addmethod(pdp_mix2_class, (t_method)pdp_mix_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_mix2_class, (t_method)pdp_mix_input_1, gensym("pdp1"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_mix2_class, (t_method)pdp_mix_mix1, gensym("mix1"), A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_mix2_class, (t_method)pdp_mix_mix2, gensym("mix2"), A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_mix2_class, (t_method)pdp_mix_extrapolate, gensym("extrapolate"), A_DEFFLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-11 01:16:24 +0000