1 files changed, 162 insertions, 0 deletions
diff --git a/modules/image_basic/pdp_constant.c b/modules/image_basic/pdp_constant.c
new file mode 100644
index 0000000..e5b088e
--- /dev/null
+++ b/modules/image_basic/pdp_constant.c
@@ -0,0 +1,162 @@
+/*
+ *   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"
+#include "pdp_imagebase.h"
+
+
+typedef struct pdp_constant_struct
+{
+    t_pdp_imagebase x_base;
+
+    t_outlet *x_outlet0;
+
+    int x_packet0;
+
+    t_symbol *x_type;
+
+    unsigned int x_width;
+    unsigned int x_height;
+
+    void *x_constant;
+ 
+} t_pdp_constant;
+
+
+
+void pdp_constant_type(t_pdp_constant *x, t_symbol *s)
+{
+    x->x_type = s;
+}
+
+
+void pdp_constant_value(t_pdp_constant *x, t_floatarg f)
+{
+    if (f>1.0f) f = 1.0f;
+    if (f<-1.0f) f = -1.0f;
+
+    x->x_constant = (void *)((s32)(0x7fff * f));
+}
+
+
+
+static void pdp_constant_process(t_pdp_constant *x)
+{
+    /* get channel mask */
+    u32 mask = pdp_imagebase_get_chanmask(x);
+
+    /* create new packet */
+    if (x->x_type == gensym("yv12")){x->x_packet0 = pdp_packet_new_image_YCrCb(x->x_width, x->x_height);}
+    else if (x->x_type == gensym("grey")){x->x_packet0 = pdp_packet_new_image_grey(x->x_width, x->x_height);}
+    else return;
+
+    /* this processes the packets using a pdp image processor */
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_constant_process, x->x_constant, mask, x->x_packet0);
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_constant_process, 0, ~mask, x->x_packet0);
+
+    return;
+}
+
+static void pdp_constant_postproc(t_pdp_constant *x)
+{
+    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet0);
+}
+
+static void pdp_constant_bang(t_pdp_constant *x)
+{
+    pdp_base_bang(x);
+}
+
+static void pdp_constant_dim(t_pdp_constant *x, t_floatarg w, t_floatarg h)
+{
+    x->x_width  = pdp_imageproc_legalwidth((int)w);
+    x->x_height = pdp_imageproc_legalheight((int)h);
+    //post("dims %d %d",  x->x_width, x->x_height);
+}
+
+
+static void pdp_constant_free(t_pdp_constant *x)
+{
+    pdp_imagebase_free(x);
+    pdp_packet_mark_unused(x->x_packet0);
+
+}
+
+t_class *pdp_constant_class;
+
+
+
+void *pdp_constant_new(void)
+{
+    int i;
+    t_pdp_constant *x = (t_pdp_constant *)pd_new(pdp_constant_class);
+
+    /* super init */
+    pdp_imagebase_init(x);
+
+    /* in/out*/
+    pdp_base_add_gen_inlet(x, gensym("float"), gensym("value"));
+    x->x_outlet0 = pdp_base_add_pdp_outlet(x);
+
+    /* base callbacks */
+    pdp_base_disable_active_inlet(x);
+    pdp_base_set_process_method(x, (t_pdp_method)pdp_constant_process);
+    pdp_base_set_postproc_method(x, (t_pdp_method)pdp_constant_postproc);
+
+    /* data init */
+    x->x_packet0 = -1;
+    pdp_constant_dim(x, 320, 240);
+    pdp_constant_value(x, 0.0f);
+    pdp_constant_type(x, gensym("yv12"));
+
+
+    return (void *)x;
+}
+
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+
+void pdp_constant_setup(void)
+{
+
+
+    pdp_constant_class = class_new(gensym("pdp_constant"), (t_newmethod)pdp_constant_new,
+    	(t_method)pdp_constant_free, sizeof(t_pdp_constant), 0, A_NULL);
+
+    pdp_imagebase_setup(pdp_constant_class);
+
+    class_addmethod(pdp_constant_class, (t_method)pdp_constant_value, gensym("value"), A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_constant_class, (t_method)pdp_constant_type, gensym("type"), A_SYMBOL, A_NULL);
+    class_addmethod(pdp_constant_class, (t_method)pdp_constant_dim, gensym("dim"), A_FLOAT, A_FLOAT, A_NULL);
+    class_addmethod(pdp_constant_class, (t_method)pdp_constant_bang, gensym("bang"), A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif