Updating pdp to current version 0.12.2

svn path=/trunk/externals/pdp/; revision=941

16 files changed, 2617 insertions, 0 deletions

diff --git a/modules/image_basic/Makefile b/modules/image_basic/Makefile
new file mode 100644
index 0000000..d82b2cb
--- /dev/null
+++ b/modules/image_basic/Makefile
@@ -0,0 +1,20 @@
+current: all_modules
+
+include ../../Makefile.config
+
+PDP_MOD = pdp_add.o pdp_conv.o \
+	pdp_mix.o pdp_mul.o pdp_randmix.o \
+	pdp_bq.o pdp_noise.o \
+	pdp_gain.o  \
+	pdp_zoom.o pdp_cheby.o  \
+	pdp_constant.o  \
+	pdp_logic.o pdp_stateless.o pdp_plasma.o
+
+
+# build basic image processing modules (derived from base class)
+all_modules: $(PDP_MOD)
+
+clean:
+	rm -f *~
+	rm -f *.o
+
diff --git a/modules/image_basic/README b/modules/image_basic/README
new file mode 100644
index 0000000..965d277
--- /dev/null
+++ b/modules/image_basic/README
@@ -0,0 +1,5 @@
+This directory contains "normal" planar 16 bit unsigned image packet processors, 
+derived from the t_pdp_imagebase class defined in pdp_imagebase.h
+
+Most modules are wrappers around monochrome bitmap processors (pdp_imageproc_*)
+
diff --git a/modules/image_basic/pdp_add.c b/modules/image_basic/pdp_add.c
new file mode 100644
index 0000000..0366c16
--- /dev/null
+++ b/modules/image_basic/pdp_add.c
@@ -0,0 +1,109 @@
+/*
+ *   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_add_struct
+{
+    /* a pdp derived class has the t_pdp_imagebase data member as first entry */
+    /* it contains the pd object and the data members for the pdp_base class */
+    t_pdp_imagebase x_base;
+
+} t_pdp_add;
+
+
+/* the process method */
+static void pdp_add_process(t_pdp_add *x)
+{
+    /* get received packets */
+    int p0, p1;
+
+    /* get channel mask */
+    int mask = pdp_imagebase_get_chanmask(x);
+
+    /* this processes the packets using a pdp image processor */
+    /* replace this with your own processing code */
+    /* for raw packet acces: use pdp_pacjet_header() and pdp_packet_data() */
+    p0 = pdp_base_get_packet(x,0);
+    p1 = pdp_base_get_packet(x,1);
+
+    pdp_imageproc_dispatch_2buf(&pdp_imageproc_add_process, 0, mask, p0, p1);
+
+
+}
+
+
+static void pdp_add_free(t_pdp_add *x)
+{
+    /* free super: this is mandatory 
+       (it stops the thread if there is one running and frees all packets) */
+    pdp_imagebase_free(x);
+
+    /* if you have allocated more packets
+       this is the place to free them with pdp_mark_unused */
+}
+
+t_class *pdp_add_class;
+
+
+void *pdp_add_new(void)
+{
+    /* allocate */
+    t_pdp_add *x = (t_pdp_add *)pd_new(pdp_add_class);
+
+    /* init super: this is mandatory */
+    pdp_imagebase_init(x);
+
+    /* set the pdp processing method */
+    pdp_base_set_process_method(x, (t_pdp_method)pdp_add_process);
+
+    /* create additional cold (readonly) pdp inlets (there is already one pdp inlet) */
+    pdp_base_add_pdp_inlet(x);
+
+    /* create a pdp_outlet */
+    pdp_base_add_pdp_outlet(x);
+
+    return (void *)x;
+}
+
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_add_setup(void)
+{
+    /* create a standard pd class */
+    pdp_add_class = class_new(gensym("pdp_add"), (t_newmethod)pdp_add_new,
+   	(t_method)pdp_add_free, sizeof(t_pdp_add), 0, A_NULL);
+
+    /* inherit pdp base class methods */
+    pdp_imagebase_setup(pdp_add_class);
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/image_basic/pdp_bq.c b/modules/image_basic/pdp_bq.c
new file mode 100644
index 0000000..088e50b
--- /dev/null
+++ b/modules/image_basic/pdp_bq.c
@@ -0,0 +1,462 @@
+/*
+ *   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"
+#include <math.h>
+
+/* computes a transfer function:
+ *
+ *         b0 + b1 z^(-1) + b2 z^(-2)
+ *  T(z) = --------------------------
+ *         1  + a1 z^(-1) + a2 z^(-2)
+ *
+ */
+
+
+typedef struct pdp_bq_struct
+{
+
+    t_pdp_imagebase x_base;  //pdp_bq derives from pdp_base
+
+
+    /* state packets for bqt */
+    int x_packet1;
+    int x_packet2;
+
+
+    unsigned int x_nbpasses;
+
+    /* single direction */
+    unsigned int x_direction;
+
+    bool x_reset_on_formatchange;
+
+    void *x_biquad;
+
+    float x_coefs_a[3]; // a0, -a1, -a2
+    float x_coefs_b[3]; // b0, b1, b2
+    float x_state_u[2]; // u0, u1
+    float x_state_u_save[2]; // u0, u1 (for reset)
+
+} t_pdp_bq;
+
+
+/************************* COEFFICIENT METHODS ****************************/
+
+static void pdp_bq_a0(t_pdp_bq *x, t_floatarg f){x->x_coefs_a[0] = f;}
+static void pdp_bq_a1(t_pdp_bq *x, t_floatarg f){x->x_coefs_a[1] = -f;}
+static void pdp_bq_a2(t_pdp_bq *x, t_floatarg f){x->x_coefs_a[2] = -f;}
+
+static void pdp_bq_b0(t_pdp_bq *x, t_floatarg f){x->x_coefs_b[0] = f;}
+static void pdp_bq_b1(t_pdp_bq *x, t_floatarg f){x->x_coefs_b[1] = f;}
+static void pdp_bq_b2(t_pdp_bq *x, t_floatarg f){x->x_coefs_b[2] = f;}
+
+static void pdp_bq_u0(t_pdp_bq *x, t_floatarg f){x->x_state_u_save[0] = f;}
+static void pdp_bq_u1(t_pdp_bq *x, t_floatarg f){x->x_state_u_save[1] = f;}
+
+
+static void pdp_bq_setcoefs(t_pdp_bq *x, 
+			    float a0, float a1, float a2,
+			    float b0, float b1, float b2)
+{
+    pdp_bq_a0(x,a0);
+    pdp_bq_a1(x,a1);
+    pdp_bq_a2(x,a2);
+    pdp_bq_b0(x,b0);
+    pdp_bq_b1(x,b1);
+    pdp_bq_b2(x,b2);
+    pdp_imageproc_bq_setcoef(x->x_biquad, x->x_coefs_a);
+}
+
+static void pdp_bq_setstate(t_pdp_bq *x, float u0, float u1)
+{
+    pdp_bq_u0(x,u0);
+    pdp_bq_u1(x,u1);
+    pdp_imageproc_bq_setcoef(x->x_biquad, x->x_coefs_a);
+}
+
+
+
+/* reso lowpass */
+static void pdp_bq_lpf(t_pdp_bq *x, t_floatarg f, t_floatarg Q)
+{
+    float a0, a1, a2, b0, b1, b2, cs, sn, w, alpha;
+    w = 2.0 * M_PI * f;
+    cs = cos(w);
+    sn = sin(w);
+	
+    alpha = sn*sinh(1.0f/(2.0f*Q));
+    b0 = (1.0 - cs)/2.0;
+    b1 =  1.0 - cs;
+    b2 = (1.0 - cs)/2.0;    
+    a0 = (1.0 + alpha);
+    a1 = -2.0*cs;
+    a2 =  1.0 - alpha;
+
+    pdp_bq_setcoefs(x, a0, a1, a2, b0, b1, b2);
+
+}
+
+/* reso highpass */
+static void pdp_bq_hpf(t_pdp_bq *x, t_floatarg f, t_floatarg Q)
+{
+    float a0, a1, a2, b0, b1, b2, cs, sn, w, alpha;
+    w = 2.0 * M_PI * f;
+    cs = cos(w);
+    sn = sin(w);
+	
+    alpha = sn*sinh(1.0f/(2.0f*Q));
+
+    b0 = (1.0 + cs)/2.0;
+    b1 = -1.0 - cs;
+    b2 = (1.0 + cs)/2.0;    
+    a0 = (1.0 + alpha);
+    a1 = -2.0*cs;
+    a2 =  1.0 - alpha;
+
+    pdp_bq_setcoefs(x, a0, a1, a2, b0, b1, b2);
+
+}
+
+
+/* reso allpass */
+static void pdp_bq_apf(t_pdp_bq *x, t_floatarg f, t_floatarg Q)
+{
+    float a0, a1, a2, b0, b1, b2, cs, sn, w, alpha;
+    w = 2.0 * M_PI * f;
+    cs = cos(w);
+    sn = sin(w);
+	
+    alpha = sn*sinh(1.0f/(2.0f*Q));
+
+    b0 = (1.0 - alpha);
+    b1 = -2.0 * cs;
+    b2 = (1.0 + alpha);    
+    a0 =  (1.0 + alpha);
+    a1 = -2.0*cs;
+    a2 =  1.0 - alpha;
+
+    pdp_bq_setcoefs(x, a0, a1, a2, b0, b1, b2);
+}
+
+/* reso band stop (notch) */
+static void pdp_bq_bsf(t_pdp_bq *x, t_floatarg f, t_floatarg Q)
+{
+    float a0, a1, a2, b0, b1, b2, cs, sn, w, alpha;
+    w = 2.0 * M_PI * f;
+    cs = cos(w);
+    sn = sin(w);
+	
+    alpha = sn*sinh(1.0f/(2.0f*Q));
+
+    b0 = 1.0;
+    b1 = -2.0 * cs;
+    b2 = 1.0;    
+    a0 =  (1.0 + alpha);
+    a1 = -2.0*cs;
+    a2 =  1.0 - alpha;
+
+    pdp_bq_setcoefs(x, a0, a1, a2, b0, b1, b2);
+
+}
+
+static void pdp_bq_onep(t_pdp_bq *x, t_floatarg f)
+{
+    float a0,a1,a2,b0,b1,b2;
+
+    if (f>1.0f) f = 1.0f;
+    if (f<0.0f) f = 0.0f;
+
+    a0 = 1.0f;
+    a1 = -(1.0f - f);
+    a2 = 0.0f;
+    b0 = f;
+    b1 = 0.0f;
+    b2 = 0.0f;
+    pdp_bq_setcoefs(x, a0, a1, a2, b0, b1, b2);
+}
+
+static void pdp_bq_twop(t_pdp_bq *x, t_floatarg f)
+{
+    float f1;
+    float a0,a1,a2,b0,b1,b2;
+
+    if (f>1.0) f = 1.0;
+    if (f<0.0) f = 0.0;
+
+    f1 = 1.0 - f;
+
+    a0 = 1.0f;
+    a1 = -2.0f*f1;
+    a2 = f1*f1;
+    b0 = f*f;
+    b1 = 0.0f;
+    b2 = 0.0f;
+
+    pdp_bq_setcoefs(x, a0, a1, a2, b0, b1, b2);
+}
+
+
+
+
+
+/************************* PROCESS METHODS ****************************/
+
+static void pdp_bqt_process(t_pdp_bq *x)
+{
+    /* get received packets */
+    int p0 = pdp_base_get_packet(x, 0);
+
+    /* get channel mask */
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    
+    pdp_imageproc_dispatch_3buf(&pdp_imageproc_bqt_process, x->x_biquad,
+				mask, p0, x->x_packet1, x->x_packet2);
+}
+
+static void pdp_bq_process(t_pdp_bq *x)
+{
+    /* get received packets */
+    int p0 = pdp_base_get_packet(x, 0);
+
+    /* get channel mask */
+    u32 mask = pdp_imagebase_get_chanmask(x);
+
+    pdp_imageproc_bq_setnbpasses(x->x_biquad, x->x_nbpasses);
+    pdp_imageproc_bq_setdirection(x->x_biquad, x->x_direction);
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_bq_process, x->x_biquad, mask, p0);
+}
+
+static void pdp_bqt_reset(t_pdp_bq *x)
+{
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_zero_process, 0, -1, x->x_packet1);
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_zero_process, 0, -1, x->x_packet2);
+}
+
+
+
+static void pdp_bqt_preproc(t_pdp_bq *x)
+{
+    /* get received packets */
+    int p0 = pdp_base_get_packet(x, 0);
+
+    /* check if state packets are compatible */
+    if (!(pdp_packet_image_compat(p0, x->x_packet1) 
+	  && pdp_packet_image_compat(p0, x->x_packet1))){
+
+	/* if not, create new state packets by copying the input packets */
+	post("pdp_bqt: created new state packets");
+	pdp_packet_mark_unused(x->x_packet1);
+	pdp_packet_mark_unused(x->x_packet2);
+	x->x_packet1 = pdp_packet_clone_rw(p0);
+	x->x_packet2 = pdp_packet_clone_rw(p0);
+	
+	/* reset */
+	if (x->x_reset_on_formatchange) pdp_bqt_reset(x);
+	
+    }
+}
+
+/************************* CONFIG METHODS ****************************/
+
+
+static void pdp_bq_passes(t_pdp_bq *x, t_floatarg f)
+{
+    int passes = (int)f;
+    passes = passes < 0 ? 0 : passes;
+    x->x_nbpasses = passes;
+
+}
+
+static void pdp_bq_lr(t_pdp_bq *x, t_floatarg f)
+{
+    if (f == 1.0f) x->x_direction |= PDP_IMAGEPROC_BIQUAD_LEFT2RIGHT;
+    if (f == 0.0f) x->x_direction &= ~PDP_IMAGEPROC_BIQUAD_LEFT2RIGHT;
+}
+
+static void pdp_bq_rl(t_pdp_bq *x, t_floatarg f)
+{
+    if (f == 1.0f) x->x_direction |= PDP_IMAGEPROC_BIQUAD_RIGHT2LEFT;
+    if (f == 0.0f) x->x_direction &= ~PDP_IMAGEPROC_BIQUAD_RIGHT2LEFT;
+}
+static void pdp_bq_tb(t_pdp_bq *x, t_floatarg f)
+{
+    if (f == 1.0f) x->x_direction |= PDP_IMAGEPROC_BIQUAD_TOP2BOTTOM;
+    if (f == 0.0f) x->x_direction &= ~PDP_IMAGEPROC_BIQUAD_TOP2BOTTOM;
+}
+
+static void pdp_bq_bt(t_pdp_bq *x, t_floatarg f)
+{
+    if (f == 1.0f) x->x_direction |= PDP_IMAGEPROC_BIQUAD_BOTTOM2TOP;
+    if (f == 0.0f) x->x_direction &= ~PDP_IMAGEPROC_BIQUAD_BOTTOM2TOP;
+}
+
+
+static void pdp_bq_hor(t_pdp_bq *x, t_floatarg f)
+{
+    pdp_bq_lr(x, f);
+    pdp_bq_rl(x, f);
+}
+static void pdp_bq_ver(t_pdp_bq *x, t_floatarg f)
+{
+    pdp_bq_tb(x, f);
+    pdp_bq_bt(x, f);
+}
+
+
+/************************* DES/CONSTRUCTORS ****************************/
+
+static void pdp_bq_free(t_pdp_bq *x)
+{
+    pdp_imagebase_free(x);
+    pdp_imageproc_bq_delete(x->x_biquad);
+    pdp_packet_mark_unused(x->x_packet1);
+    pdp_packet_mark_unused(x->x_packet2);
+
+}
+
+
+void pdp_bq_init(t_pdp_bq *x)
+{
+    x->x_packet1 = -1;
+    x->x_packet2 = -1;
+
+    x->x_nbpasses = 1;
+    x->x_reset_on_formatchange = true;
+
+    x->x_biquad = pdp_imageproc_bq_new();
+
+    pdp_bq_setstate(x, 0.0f, 0.0f);
+    pdp_bq_onep(x, 0.1f);
+
+}
+
+
+
+/* class pointers */
+
+t_class *pdp_bq_class;   /* biquad spacial processing */
+t_class *pdp_bqt_class;  /* biquad time processing */
+
+void *pdp_bq_new(void)
+{
+    t_pdp_bq *x = (t_pdp_bq *)pd_new(pdp_bq_class);
+
+    pdp_imagebase_init(x);
+    pdp_base_add_pdp_outlet(x);
+
+    pdp_base_set_process_method(x, (t_pdp_method)pdp_bq_process);
+    pdp_base_add_gen_inlet(x, gensym("float"), gensym("passes"));
+
+    pdp_bq_init(x);
+    return (void *)x;
+}
+
+void *pdp_bqt_new(void)
+{
+    t_pdp_bq *x = (t_pdp_bq *)pd_new(pdp_bqt_class);
+
+    pdp_imagebase_init(x);
+    pdp_base_add_pdp_outlet(x);
+
+    pdp_base_set_preproc_method(x, (t_pdp_method)pdp_bqt_preproc);
+    pdp_base_set_process_method(x, (t_pdp_method)pdp_bqt_process);
+
+    pdp_bq_init(x);
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+
+
+
+
+/************************* CLASS CONSTRUCTORS ****************************/
+
+
+void pdp_bq_coefmethods_setup(t_class *c)
+{
+
+    /* raw coefficient methods */
+    class_addmethod(c, (t_method)pdp_bq_a1, gensym("a1"),  A_FLOAT, A_NULL);   
+    class_addmethod(c, (t_method)pdp_bq_a2, gensym("a2"),  A_FLOAT, A_NULL);   
+    class_addmethod(c, (t_method)pdp_bq_b0, gensym("b0"),  A_FLOAT, A_NULL);   
+    class_addmethod(c, (t_method)pdp_bq_b1, gensym("b1"),  A_FLOAT, A_NULL);   
+    class_addmethod(c, (t_method)pdp_bq_b2, gensym("b2"),  A_FLOAT, A_NULL);   
+    //class_addmethod(c, (t_method)pdp_bq_u1, gensym("u1"),  A_FLOAT, A_NULL);   
+    //class_addmethod(c, (t_method)pdp_bq_u2, gensym("u2"),  A_FLOAT, A_NULL);
+
+    /* real pole filters */
+    class_addmethod(c, (t_method)pdp_bq_onep, gensym("onep"),  A_FLOAT, A_NULL);   
+    class_addmethod(c, (t_method)pdp_bq_twop, gensym("twop"),  A_FLOAT, A_NULL);   
+
+    /* resonnant pole filters */
+    class_addmethod(c, (t_method)pdp_bq_lpf, gensym("lpf"),  A_FLOAT, A_FLOAT, A_NULL);
+    class_addmethod(c, (t_method)pdp_bq_hpf, gensym("hpf"),  A_FLOAT, A_FLOAT, A_NULL);
+    class_addmethod(c, (t_method)pdp_bq_apf, gensym("apf"),  A_FLOAT, A_FLOAT, A_NULL);
+    class_addmethod(c, (t_method)pdp_bq_bsf, gensym("bsf"),  A_FLOAT, A_FLOAT, A_NULL);
+}
+
+void pdp_bq_setup(void)
+{
+
+    /* setup spatial processing class */
+    
+    pdp_bq_class = class_new(gensym("pdp_bq"), (t_newmethod)pdp_bq_new,
+    	(t_method)pdp_bq_free, sizeof(t_pdp_bq), 0, A_NULL);
+
+    pdp_imagebase_setup(pdp_bq_class);
+    pdp_bq_coefmethods_setup(pdp_bq_class);
+
+    class_addmethod(pdp_bq_class, (t_method)pdp_bq_passes, gensym("passes"),  A_FLOAT, A_NULL);   
+    class_addmethod(pdp_bq_class, (t_method)pdp_bq_hor, gensym("hor"),  A_FLOAT, A_NULL);   
+    class_addmethod(pdp_bq_class, (t_method)pdp_bq_ver, gensym("ver"),  A_FLOAT, A_NULL);   
+    class_addmethod(pdp_bq_class, (t_method)pdp_bq_tb, gensym("tb"),  A_FLOAT, A_NULL);   
+    class_addmethod(pdp_bq_class, (t_method)pdp_bq_bt, gensym("bt"),  A_FLOAT, A_NULL);   
+    class_addmethod(pdp_bq_class, (t_method)pdp_bq_lr, gensym("lr"),  A_FLOAT, A_NULL);   
+    class_addmethod(pdp_bq_class, (t_method)pdp_bq_rl, gensym("rl"),  A_FLOAT, A_NULL);   
+
+
+
+    /* setup time processing class */
+    pdp_bqt_class = class_new(gensym("pdp_bqt"), (t_newmethod)pdp_bqt_new,
+    	(t_method)pdp_bq_free, sizeof(t_pdp_bq), 0, A_NULL);
+
+    pdp_imagebase_setup(pdp_bqt_class);
+    pdp_bq_coefmethods_setup(pdp_bqt_class);
+
+
+    /* control */
+    class_addmethod(pdp_bqt_class, (t_method)pdp_bqt_reset, gensym("reset"), A_NULL);
+    
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/image_basic/pdp_cheby.c b/modules/image_basic/pdp_cheby.c
new file mode 100644
index 0000000..1bd1a16
--- /dev/null
+++ b/modules/image_basic/pdp_cheby.c
@@ -0,0 +1,189 @@
+/*
+ *   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 <stdio.h>
+#include <gsl/gsl_math.h>
+#include <gsl/gsl_chebyshev.h>
+#include "pdp.h"
+#include "pdp_imagebase.h"
+
+
+typedef struct pdp_cheby_struct
+{
+    t_pdp_imagebase x_base;
+    void *x_cheby;
+    int x_iterations;
+    int x_order;
+    gsl_cheb_series *x_cs;
+    gsl_function x_F;
+    float *x_vec;
+    int x_nbpoints;
+
+} t_pdp_cheby;
+
+
+
+static double pdp_cheby_mappingfunction(double f, void *params)
+{
+    t_pdp_cheby *x = (t_pdp_cheby *)params;
+    int index;
+
+    /* if there's no array, return the identity function */
+    if (!x->x_vec) return f;
+
+    /* else interpolate the array */
+    index = ((f + 1) * 0.5) * (x->x_nbpoints - 1);
+    return x->x_vec[index];
+    
+}
+
+static void pdp_cheby_coef(t_pdp_cheby *x, t_floatarg c, t_floatarg f)
+{
+    pdp_imageproc_cheby_setcoef(x->x_cheby, (int)c, f);
+}
+
+static void pdp_cheby_approx(t_pdp_cheby *x, t_symbol *s)
+{
+    int i;
+    t_garray *a;
+
+    /* check if array is valid */
+    if (!(a = (t_garray *)pd_findbyclass(s, garray_class))){
+        post("pdp_cheby: %s: no such array", s->s_name);
+    }
+    /* get data */
+    else if (!garray_getfloatarray(a, &x->x_nbpoints, &x->x_vec)){
+        post("pdp_cheby: %s: bad template", s->s_name);
+
+    }
+
+    else{
+
+	/* calculate approximation */
+	gsl_cheb_init (x->x_cs, &x->x_F, -1.0, 1.0);
+
+	/* propagate coefficients */
+	for (i=0; i<=x->x_order; i++){
+	    pdp_cheby_coef(x, i, x->x_cs->c[i]);
+	}
+    }
+    
+    x->x_vec = 0;
+    return;
+
+
+}
+
+
+static void pdp_cheby_process(t_pdp_cheby *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_cheby_setnbpasses(x->x_cheby, x->x_iterations);
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_cheby_process, x->x_cheby, mask, p0);
+}
+
+
+
+static void pdp_cheby_reset(t_pdp_cheby *x)
+{
+    int i;
+    for (i = 0; i <= x->x_order; i++)
+	pdp_imageproc_cheby_setcoef(x->x_cheby, i, 0);
+}
+
+
+static void pdp_cheby_iterations(t_pdp_cheby *x, t_floatarg f)
+{
+  int i = (int)f;
+  if (i<0) i = 0;
+  x->x_iterations = i;
+
+}
+static void pdp_cheby_free(t_pdp_cheby *x)
+{
+    pdp_imagebase_free(x);
+    pdp_imageproc_cheby_delete(x->x_cheby);
+    gsl_cheb_free(x->x_cs); 
+
+}
+
+t_class *pdp_cheby_class;
+
+
+
+void *pdp_cheby_new(t_floatarg f)
+{
+    t_pdp_cheby *x = (t_pdp_cheby *)pd_new(pdp_cheby_class);
+    int order = (int)(f);
+
+    /* super init */
+    pdp_imagebase_init(x);
+
+    /* create i/o */
+    pdp_base_add_gen_inlet(x, gensym("float"), gensym("iterations"));
+    pdp_base_add_pdp_outlet(x);
+
+    /* setup callback */
+    pdp_base_set_process_method(x, (t_pdp_method)pdp_cheby_process);
+
+    /* data init */
+    x->x_cheby = pdp_imageproc_cheby_new(order);
+    x->x_iterations = 1;
+
+    if (order < 2) order = 2;
+    x->x_order = order;
+
+    /* init gls chebychev series object */
+    x->x_cs = gsl_cheb_alloc(order);
+    x->x_F.function = pdp_cheby_mappingfunction;
+    x->x_F.params = x;
+    x->x_vec = 0;
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_cheby_setup(void)
+{
+
+
+    pdp_cheby_class = class_new(gensym("pdp_cheby"), (t_newmethod)pdp_cheby_new,
+    	(t_method)pdp_cheby_free, sizeof(t_pdp_cheby), 0, A_DEFFLOAT, A_NULL);
+
+    pdp_imagebase_setup(pdp_cheby_class);
+
+    class_addmethod(pdp_cheby_class, (t_method)pdp_cheby_coef, gensym("coef"),  A_FLOAT, A_FLOAT, A_NULL);   
+    class_addmethod(pdp_cheby_class, (t_method)pdp_cheby_iterations, gensym("iterations"),  A_FLOAT, A_NULL);   
+    class_addmethod(pdp_cheby_class, (t_method)pdp_cheby_reset, gensym("reset"),  A_NULL);
+    class_addmethod(pdp_cheby_class, (t_method)pdp_cheby_approx, gensym("approx"),  A_SYMBOL, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
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
diff --git a/modules/image_basic/pdp_conv.c b/modules/image_basic/pdp_conv.c
new file mode 100644
index 0000000..dfce381
--- /dev/null
+++ b/modules/image_basic/pdp_conv.c
@@ -0,0 +1,212 @@
+/*
+ *   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_conv_struct
+{
+    t_pdp_imagebase x_base;
+
+
+    unsigned int x_nbpasses;
+    bool x_horizontal;
+    bool x_vertical;
+
+    void *x_convolver_hor;
+    void *x_convolver_ver;
+
+} t_pdp_conv;
+
+
+
+static void pdp_conv_process(t_pdp_conv *x)
+{
+    int p = pdp_base_get_packet(x, 0);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+
+    if (x->x_vertical){
+	pdp_imageproc_conv_setnbpasses(x->x_convolver_ver, x->x_nbpasses);
+	pdp_imageproc_dispatch_1buf(&pdp_imageproc_conv_process, x->x_convolver_ver, mask, p);
+    }
+
+    if (x->x_horizontal){
+	pdp_imageproc_conv_setnbpasses(x->x_convolver_hor, x->x_nbpasses);
+	pdp_imageproc_dispatch_1buf(&pdp_imageproc_conv_process, x->x_convolver_hor, mask, p);
+    }
+
+}
+
+
+
+static void pdp_conv_passes(t_pdp_conv *x, t_floatarg f)
+{
+    int passes = (int)f;
+    passes = passes < 0 ? 0 : passes;
+    x->x_nbpasses = passes;
+
+}
+static void pdp_conv_hor(t_pdp_conv *x, t_floatarg f)
+{
+    int hor = (int)f;
+    x->x_horizontal = (hor != 0);
+
+}
+static void pdp_conv_ver(t_pdp_conv *x, t_floatarg f)
+{
+    int ver = (int)f;
+    x->x_vertical = (ver != 0);
+}
+static void pdp_conv_free(t_pdp_conv *x)
+{
+    pdp_imagebase_free(x);
+    pdp_imageproc_conv_delete(x->x_convolver_hor);
+    pdp_imageproc_conv_delete(x->x_convolver_ver);
+}
+
+/* setup hmask */
+
+static void pdp_conv_hleft(t_pdp_conv *x, t_floatarg f)
+{
+    pdp_imageproc_conv_setmin1(x->x_convolver_hor, f);
+
+}
+static void pdp_conv_hmiddle(t_pdp_conv *x, t_floatarg f)
+{
+    pdp_imageproc_conv_setzero(x->x_convolver_hor, f);
+}
+static void pdp_conv_hright(t_pdp_conv *x, t_floatarg f)
+{
+    pdp_imageproc_conv_setplus1(x->x_convolver_hor, f);
+}
+
+static void pdp_conv_hmask(t_pdp_conv *x, t_floatarg l, t_floatarg m, t_floatarg r)
+{
+  pdp_conv_hleft(x, l);
+  pdp_conv_hmiddle(x, m);
+  pdp_conv_hright(x, r);
+}
+
+static void pdp_conv_vtop(t_pdp_conv *x, t_floatarg f)
+{
+    pdp_imageproc_conv_setmin1(x->x_convolver_ver, f);
+}
+static void pdp_conv_vmiddle(t_pdp_conv *x, t_floatarg f)
+{
+    pdp_imageproc_conv_setzero(x->x_convolver_ver, f);
+
+}
+static void pdp_conv_vbottom(t_pdp_conv *x, t_floatarg f)
+{
+    pdp_imageproc_conv_setplus1(x->x_convolver_ver, f);
+}
+
+static void pdp_conv_vmask(t_pdp_conv *x, t_floatarg l, t_floatarg m, t_floatarg r)
+{
+  pdp_conv_vtop(x, l);
+  pdp_conv_vmiddle(x, m);
+  pdp_conv_vbottom(x, r);
+}
+
+
+static void pdp_conv_mask(t_pdp_conv *x, t_floatarg l, t_floatarg m, t_floatarg r)
+{
+  pdp_conv_hmask(x, l, m, r);
+  pdp_conv_vmask(x, l, m, r);
+}
+
+t_class *pdp_conv_class;
+
+
+
+void *pdp_conv_new(void)
+{
+    t_pdp_conv *x = (t_pdp_conv *)pd_new(pdp_conv_class);
+
+    /* super init */
+    pdp_imagebase_init(x);
+
+    /* inlets & outlets */
+    pdp_base_add_gen_inlet(x, gensym("float"), gensym("passes"));
+    pdp_base_add_pdp_outlet(x);
+
+    /* register */
+    pdp_base_set_process_method(x, (t_pdp_method)pdp_conv_process);
+
+    x->x_nbpasses = 1;
+    x->x_horizontal = true;
+    x->x_vertical = true;
+
+    x->x_convolver_hor = pdp_imageproc_conv_new();
+    x->x_convolver_ver = pdp_imageproc_conv_new();
+
+    pdp_imageproc_conv_setbordercolor(x->x_convolver_hor, 0);
+    pdp_imageproc_conv_setbordercolor(x->x_convolver_ver, 0);
+
+    pdp_imageproc_conv_setorientation(x->x_convolver_hor, PDP_IMAGEPROC_CONV_HORIZONTAL);
+    pdp_imageproc_conv_setorientation(x->x_convolver_ver, PDP_IMAGEPROC_CONV_VERTICAL);
+ 
+    pdp_conv_mask(x, .25,.5,.25);
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_conv_setup(void)
+{
+
+
+    pdp_conv_class = class_new(gensym("pdp_conv"), (t_newmethod)pdp_conv_new,
+    	(t_method)pdp_conv_free, sizeof(t_pdp_conv), 0, A_NULL);
+
+    pdp_imagebase_setup(pdp_conv_class);
+
+    class_addmethod(pdp_conv_class, (t_method)pdp_conv_passes, gensym("passes"),  A_DEFFLOAT, A_NULL);   
+    class_addmethod(pdp_conv_class, (t_method)pdp_conv_hor, gensym("hor"),  A_DEFFLOAT, A_NULL);   
+    class_addmethod(pdp_conv_class, (t_method)pdp_conv_ver, gensym("ver"),  A_DEFFLOAT, A_NULL);   
+
+    class_addmethod(pdp_conv_class, (t_method)pdp_conv_hleft, gensym("hleft"),  A_DEFFLOAT, A_NULL);   
+    class_addmethod(pdp_conv_class, (t_method)pdp_conv_hmiddle, gensym("hmiddle"),  A_DEFFLOAT, A_NULL);   
+    class_addmethod(pdp_conv_class, (t_method)pdp_conv_hright, gensym("hright"),  A_DEFFLOAT, A_NULL);   
+
+    class_addmethod(pdp_conv_class, (t_method)pdp_conv_vtop, gensym("vtop"),  A_DEFFLOAT, A_NULL);   
+    class_addmethod(pdp_conv_class, (t_method)pdp_conv_vmiddle, gensym("vmiddle"),  A_DEFFLOAT, A_NULL);   
+    class_addmethod(pdp_conv_class, (t_method)pdp_conv_vbottom, gensym("vbottom"),  A_DEFFLOAT, A_NULL);   
+
+    class_addmethod(pdp_conv_class, (t_method)pdp_conv_vmask, gensym("vmask"),  A_FLOAT, A_FLOAT, A_FLOAT, A_NULL);   
+    class_addmethod(pdp_conv_class, (t_method)pdp_conv_hmask, gensym("hmask"),  A_FLOAT, A_FLOAT, A_FLOAT, A_NULL);   
+    class_addmethod(pdp_conv_class, (t_method)pdp_conv_mask, gensym("mask"),  A_FLOAT, A_FLOAT, A_FLOAT, A_NULL);   
+
+    
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/image_basic/pdp_gain.c b/modules/image_basic/pdp_gain.c
new file mode 100644
index 0000000..c36f758
--- /dev/null
+++ b/modules/image_basic/pdp_gain.c
@@ -0,0 +1,111 @@
+/*
+ *   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_gain_struct
+{
+    t_pdp_imagebase x_base;
+    void *x_gain;
+
+} t_pdp_gain;
+
+
+
+
+static void pdp_gain_process(t_pdp_gain *x)
+{
+    int p = pdp_base_get_packet(x, 0);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+
+    pdp_packet_image_set_chanmask(p, mask);
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_gain_process, x->x_gain, 0, p);
+    
+}
+
+
+static void pdp_gain_gain(t_pdp_gain *x, t_floatarg f)
+{
+    pdp_imageproc_gain_setgain(x->x_gain, f);
+}
+
+
+
+t_class *pdp_gain_class;
+
+
+
+void pdp_gain_free(t_pdp_gain *x)
+{
+    pdp_imagebase_free(x);
+    pdp_imageproc_gain_delete(x->x_gain);
+}
+
+void *pdp_gain_new(t_floatarg f)
+{
+    t_pdp_gain *x = (t_pdp_gain *)pd_new(pdp_gain_class);
+
+    /* super init */
+    pdp_imagebase_init(x);
+
+    /* no arg, or zero -> gain = 1 */
+    if (f==0.0f) f = 1.0f;
+
+
+    /* io */
+    pdp_base_add_gen_inlet(x, gensym("float"), gensym("gain"));
+    pdp_base_add_pdp_outlet(x);
+
+    /* callbacks */
+    pdp_base_set_process_method(x, (t_pdp_method)pdp_gain_process);
+
+    x->x_gain = pdp_imageproc_gain_new();
+    pdp_gain_gain(x, f);
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_gain_setup(void)
+{
+
+
+    pdp_gain_class = class_new(gensym("pdp_gain"), (t_newmethod)pdp_gain_new,
+    	(t_method)pdp_gain_free, sizeof(t_pdp_gain), 0, A_DEFFLOAT, A_NULL);
+
+    pdp_imagebase_setup(pdp_gain_class);
+
+    class_addmethod(pdp_gain_class, (t_method)pdp_gain_gain, gensym("gain"),  A_DEFFLOAT, A_NULL);   
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/image_basic/pdp_logic.c b/modules/image_basic/pdp_logic.c
new file mode 100644
index 0000000..002557c
--- /dev/null
+++ b/modules/image_basic/pdp_logic.c
@@ -0,0 +1,252 @@
+/*
+ *   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_logic_struct
+{
+    t_pdp_imagebase x_base;
+
+    void *x_mask;
+   
+} t_pdp_logic;
+
+
+static void pdp_logic_process_and(t_pdp_logic *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    int p1 = pdp_base_get_packet(x, 1);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_2buf(&pdp_imageproc_and_process, 0, mask, p0, p1);
+}
+
+static void pdp_logic_process_or(t_pdp_logic *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    int p1 = pdp_base_get_packet(x, 1);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_2buf(&pdp_imageproc_or_process, 0, mask, p0, p1);
+}
+
+static void pdp_logic_process_xor(t_pdp_logic *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    int p1 = pdp_base_get_packet(x, 1);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_2buf(&pdp_imageproc_xor_process, 0, mask, p0, p1);
+}
+
+static void pdp_logic_process_not(t_pdp_logic *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_not_process, 0, mask, p0);
+}
+
+static void pdp_logic_process_mask(t_pdp_logic *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_mask_process, x->x_mask, mask, p0);
+}
+
+static void pdp_logic_process_softthresh(t_pdp_logic *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_softthresh_process, x->x_mask, mask, p0);
+}
+
+
+static void pdp_logic_process_hardthresh(t_pdp_logic *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_hardthresh_process, x->x_mask, mask, p0);
+}
+
+
+static void pdp_logic_set_mask(t_pdp_logic *x, t_floatarg f)
+{
+    /* using a pointer as a variable hmm? */
+    u32 mask = ((u32)f) & 0xffff;
+    x->x_mask = ((void * )mask);
+}
+
+static void pdp_logic_set_threshold(t_pdp_logic *x, t_floatarg f)
+{
+    /* using a pointer as a variable hmm? */
+    if (f<0.0f) f = 0.0f;
+    if (f>1.0f) f = 1.0f;
+    x->x_mask = (void *)((u32)(((float)0x7fff) * f));
+}
+
+static void pdp_logic_set_depth(t_pdp_logic *x, t_floatarg f)
+{
+    u32 mask;
+    int shift = (16 - ((int)f));
+    if (shift < 0) shift = 0;
+    if (shift > 16) shift = 16;
+    mask =  ((0xffff)<<shift) & 0xffff;
+    x->x_mask = (void *)mask;
+
+}
+
+
+static void pdp_logic_free(t_pdp_logic *x)
+{
+    /* remove process method from queue before deleting data */
+    pdp_imagebase_free(x);
+}
+
+t_class *pdp_logic_class;
+
+
+/* common new method */
+void *pdp_logic_new(void)
+{
+    t_pdp_logic *x = (t_pdp_logic *)pd_new(pdp_logic_class);
+ 
+    /* super init */
+    pdp_imagebase_init(x);
+
+    /* outlet */
+    pdp_base_add_pdp_outlet(x);
+    x->x_mask = 0;
+
+    return (void *)x;
+}
+
+void *pdp_logic_new_and(void)
+{
+     t_pdp_logic *x = pdp_logic_new();
+     /* init in/out */
+     pdp_base_add_pdp_inlet(x); 
+     pdp_base_set_process_method(x, (t_pdp_method)pdp_logic_process_and);
+
+     return (void *)x;
+}
+
+void *pdp_logic_new_or(void)
+{
+     t_pdp_logic *x = pdp_logic_new();
+     /* init in/out */
+     pdp_base_add_pdp_inlet(x); 
+     pdp_base_set_process_method(x, (t_pdp_method)pdp_logic_process_or);
+     return (void *)x;
+}
+
+void *pdp_logic_new_xor(void)
+{
+     t_pdp_logic *x = pdp_logic_new();
+     /* init in/out */
+     pdp_base_add_pdp_inlet(x); 
+     pdp_base_set_process_method(x, (t_pdp_method)pdp_logic_process_xor);
+     return (void *)x;
+}
+
+void *pdp_logic_new_not(void)
+{
+     t_pdp_logic *x = pdp_logic_new();
+     /* init in/out */
+     pdp_base_set_process_method(x, (t_pdp_method)pdp_logic_process_not);
+     return (void *)x;
+}
+
+void *pdp_logic_new_mask(void)
+{
+     t_pdp_logic *x = pdp_logic_new();
+     /* init in/out */
+     pdp_base_add_gen_inlet(x, gensym("float"), gensym("mask"));
+     pdp_base_set_process_method(x, (t_pdp_method)pdp_logic_process_mask);
+
+     x->x_mask = (void *)0xffff;
+     return (void *)x;
+}
+
+void *pdp_logic_new_depth(void)
+{
+     t_pdp_logic *x = pdp_logic_new();
+     /* init in/out */
+     pdp_base_add_gen_inlet(x, gensym("float"), gensym("depth"));
+     pdp_base_set_process_method(x, (t_pdp_method)pdp_logic_process_mask);
+
+     x->x_mask = (void *)0xffff;
+     return (void *)x;
+}
+
+void *pdp_logic_new_softthresh(t_floatarg f)
+{
+     t_pdp_logic *x = pdp_logic_new();
+     /* init in/out */
+     pdp_base_add_gen_inlet(x, gensym("float"), gensym("threshold"));
+     pdp_base_set_process_method(x, (t_pdp_method)pdp_logic_process_softthresh);
+     pdp_logic_set_threshold(x,f);
+
+     return (void *)x;
+}
+
+
+void *pdp_logic_new_hardthresh(t_floatarg f)
+{
+     t_pdp_logic *x = pdp_logic_new();
+     /* init in/out */
+     pdp_base_add_gen_inlet(x, gensym("float"), gensym("threshold"));
+     pdp_base_set_process_method(x, (t_pdp_method)pdp_logic_process_hardthresh);
+     pdp_logic_set_threshold(x,f);
+
+     return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_logic_setup(void)
+{
+
+
+    pdp_logic_class = class_new(gensym("pdp_and"), (t_newmethod)pdp_logic_new_and,
+    	(t_method)pdp_logic_free, sizeof(t_pdp_logic), 0, A_DEFFLOAT, A_NULL);
+
+    pdp_imagebase_setup(pdp_logic_class);
+
+    class_addcreator((t_newmethod)pdp_logic_new_or, gensym("pdp_or"), A_NULL);
+    class_addcreator((t_newmethod)pdp_logic_new_xor, gensym("pdp_xor"), A_NULL);
+    class_addcreator((t_newmethod)pdp_logic_new_not, gensym("pdp_not"), A_NULL);
+    class_addcreator((t_newmethod)pdp_logic_new_mask, gensym("pdp_bitmask"), A_NULL);
+    class_addcreator((t_newmethod)pdp_logic_new_depth, gensym("pdp_bitdepth"), A_NULL);
+    class_addcreator((t_newmethod)pdp_logic_new_softthresh, gensym("pdp_sthresh"), A_NULL);
+    class_addcreator((t_newmethod)pdp_logic_new_hardthresh, gensym("pdp_hthresh"), A_NULL);
+  
+    class_addmethod(pdp_logic_class, (t_method)pdp_logic_set_mask, gensym("mask"), A_FLOAT, A_NULL);
+    class_addmethod(pdp_logic_class, (t_method)pdp_logic_set_depth, gensym("depth"), A_FLOAT, A_NULL);
+    class_addmethod(pdp_logic_class, (t_method)pdp_logic_set_threshold, gensym("threshold"), A_FLOAT, A_NULL);
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/image_basic/pdp_mix.c b/modules/image_basic/pdp_mix.c
new file mode 100644
index 0000000..2d01d38
--- /dev/null
+++ b/modules/image_basic/pdp_mix.c
@@ -0,0 +1,165 @@
+/*
+ *   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_mix_struct
+{
+    t_pdp_imagebase x_base;
+
+    t_outlet *x_outlet0;
+    t_outlet *x_outlet1;
+
+    void *x_mixer;
+ 
+    int x_extrapolate;
+    
+} t_pdp_mix;
+
+
+static void pdp_mix_process(t_pdp_mix *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    int p1 = pdp_base_get_packet(x, 1);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_2buf(&pdp_imageproc_mix_process, x->x_mixer, mask, p0, p1);
+}
+
+
+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)
+{
+    pdp_imagebase_free(x);
+    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;
+
+    pdp_imagebase_init(x);
+    pdp_base_add_pdp_inlet(x);
+    pdp_base_add_pdp_outlet(x);
+    pdp_base_set_process_method(x, (t_pdp_method)pdp_mix_process);
+
+    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);
+    pdp_base_add_gen_inlet(x, 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);
+
+    pdp_base_add_gen_inlet(x, gensym("float"), gensym("mix1"));
+    pdp_base_add_gen_inlet(x, 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);
+
+    pdp_imagebase_setup(pdp_mix_class);
+    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);
+
+    pdp_imagebase_setup(pdp_mix2_class);
+    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
diff --git a/modules/image_basic/pdp_mul.c b/modules/image_basic/pdp_mul.c
new file mode 100644
index 0000000..c7321d7
--- /dev/null
+++ b/modules/image_basic/pdp_mul.c
@@ -0,0 +1,85 @@
+/*
+ *   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_mul_struct
+{
+    t_pdp_imagebase x_base;
+
+} t_pdp_mul;
+
+
+
+static void pdp_mul_process(t_pdp_mul *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    int p1 = pdp_base_get_packet(x, 1);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_2buf(&pdp_imageproc_mul_process, 0, mask, p0, p1);
+}
+
+
+
+static void pdp_mul_free(t_pdp_mul *x)
+{
+    pdp_imagebase_free(x);
+}
+
+t_class *pdp_mul_class;
+
+
+
+void *pdp_mul_new(void)
+{
+    t_pdp_mul *x = (t_pdp_mul *)pd_new(pdp_mul_class);
+    
+    /* super init */
+    pdp_imagebase_init(x);
+    pdp_base_add_pdp_inlet(x); 
+    pdp_base_add_pdp_outlet(x);
+    pdp_base_set_process_method(x, (t_pdp_method)pdp_mul_process);
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_mul_setup(void)
+{
+
+
+    pdp_mul_class = class_new(gensym("pdp_mul"), (t_newmethod)pdp_mul_new,
+    	(t_method)pdp_mul_free, sizeof(t_pdp_mul), 0, A_NULL);
+
+    pdp_imagebase_setup(pdp_mul_class);
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/image_basic/pdp_noise.c b/modules/image_basic/pdp_noise.c
new file mode 100644
index 0000000..cb8f772
--- /dev/null
+++ b/modules/image_basic/pdp_noise.c
@@ -0,0 +1,160 @@
+/*
+ *   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_noise_struct
+{
+    t_pdp_imagebase x_base;
+
+    int x_packet0;
+    t_outlet *x_outlet0;
+    void *x_noisegen;
+    
+    t_symbol *x_type;
+
+    unsigned int x_width;
+    unsigned int x_height;
+ 
+} t_pdp_noise;
+
+
+
+void pdp_noise_type(t_pdp_noise *x, t_symbol *s)
+{
+    x->x_type = s;
+}
+
+
+void pdp_noise_random(t_pdp_noise *x, t_floatarg seed)
+{
+    if (seed == 0.0f) seed = (float)random();
+    pdp_imageproc_random_setseed(x->x_noisegen, seed);
+
+}
+
+/* called inside pdp thread */
+static void pdp_noise_process(t_pdp_noise *x)
+{
+    /* seed the 16 bit rng with a new random number from the clib */
+    pdp_noise_random(x, 0.0f);
+
+    /* create new packet */
+    if      (x->x_type == gensym("grey")) {
+	x->x_packet0 = pdp_packet_new_image_grey(x->x_width, x->x_height);
+    }
+    else if (x->x_type == gensym("yv12")) {
+	x->x_packet0 = pdp_packet_new_image_YCrCb(x->x_width, x->x_height);
+    }
+    else return;
+
+    /* call the image processor */
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_random_process, x->x_noisegen, 
+				-1, x->x_packet0);
+}
+
+/* called inside pd thread: involves an outlet */
+static void pdp_noise_postproc(t_pdp_noise *x)
+{
+    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet0);
+}
+
+static void pdp_noise_bang(t_pdp_noise *x)
+{
+    pdp_base_bang(x);
+}
+
+static void pdp_noise_dim(t_pdp_noise *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_noise_free(t_pdp_noise *x)
+{
+    pdp_imagebase_free(x);
+
+    /* tidy up */
+    pdp_packet_mark_unused(x->x_packet0);
+    pdp_imageproc_random_delete(x->x_noisegen);
+}
+
+t_class *pdp_noise_class;
+
+
+void *pdp_noise_new(void)
+{
+    int i;
+
+    t_pdp_noise *x = (t_pdp_noise *)pd_new(pdp_noise_class);
+
+    pdp_imagebase_init(x);
+    pdp_base_disable_active_inlet(x);
+    pdp_base_set_process_method(x, (t_pdp_method)pdp_noise_process);
+    pdp_base_set_postproc_method(x, (t_pdp_method)pdp_noise_postproc);
+
+    x->x_outlet0 = pdp_base_add_pdp_outlet(x);
+    x->x_packet0 = -1;
+
+    x->x_width = 320;
+    x->x_height = 240;
+
+    x->x_noisegen = pdp_imageproc_random_new();
+
+    pdp_noise_random(x, 0.0f);
+    pdp_noise_type(x, gensym("yv12"));
+
+    return (void *)x;
+}
+
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+
+void pdp_noise_setup(void)
+{
+
+
+    pdp_noise_class = class_new(gensym("pdp_noise"), (t_newmethod)pdp_noise_new,
+    	(t_method)pdp_noise_free, sizeof(t_pdp_noise), 0, A_NULL);
+
+    pdp_imagebase_setup(pdp_noise_class);
+
+    class_addmethod(pdp_noise_class, (t_method)pdp_noise_random, gensym("seed"), A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_noise_class, (t_method)pdp_noise_type, gensym("type"), A_SYMBOL, A_NULL);
+    class_addmethod(pdp_noise_class, (t_method)pdp_noise_dim, gensym("dim"), A_FLOAT, A_FLOAT, A_NULL);
+    class_addmethod(pdp_noise_class, (t_method)pdp_noise_bang, gensym("bang"), A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/image_basic/pdp_plasma.c b/modules/image_basic/pdp_plasma.c
new file mode 100644
index 0000000..78d886c
--- /dev/null
+++ b/modules/image_basic/pdp_plasma.c
@@ -0,0 +1,166 @@
+/*
+ *   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_plasma_struct
+{
+    t_pdp_imagebase x_base;
+
+    int x_packet0;
+    t_outlet *x_outlet0;
+    void *x_plasmagen;
+    
+    t_symbol *x_type;
+
+    unsigned int x_width;
+    unsigned int x_height;
+ 
+} t_pdp_plasma;
+
+
+
+void pdp_plasma_type(t_pdp_plasma *x, t_symbol *s)
+{
+    x->x_type = s;
+}
+
+
+void pdp_plasma_random(t_pdp_plasma *x, t_floatarg seed)
+{
+    if (seed == 0.0f) seed = (float)random();
+    pdp_imageproc_plasma_setseed(x->x_plasmagen, seed);
+
+}
+
+void pdp_plasma_turbulence(t_pdp_plasma *x, t_floatarg f)
+{
+    pdp_imageproc_plasma_setturbulence(x->x_plasmagen, f);
+
+}
+
+/* called inside pdp thread */
+static void pdp_plasma_process(t_pdp_plasma *x)
+{
+    /* seed the 16 bit rng with a new random number from the clib */
+    pdp_plasma_random(x, 0.0f);
+
+    /* create new packet */
+    if      (x->x_type == gensym("grey")) {x->x_packet0 = pdp_packet_new_image_grey(x->x_width, x->x_height);}
+    else if (x->x_type == gensym("yv12")) {x->x_packet0 = pdp_packet_new_image_YCrCb(x->x_width, x->x_height);}
+    else return;
+
+    /* call the image processor */
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_plasma_process, x->x_plasmagen, 
+				-1, x->x_packet0);
+}
+
+/* called inside pd thread: involves an outlet */
+static void pdp_plasma_postproc(t_pdp_plasma *x)
+{
+    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet0);
+}
+
+static void pdp_plasma_bang(t_pdp_plasma *x)
+{
+    pdp_base_bang(x);
+}
+
+static void pdp_plasma_dim(t_pdp_plasma *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_plasma_free(t_pdp_plasma *x)
+{
+    pdp_imagebase_free(x);
+
+    /* tidy up */
+    pdp_packet_mark_unused(x->x_packet0);
+    pdp_imageproc_plasma_delete(x->x_plasmagen);
+}
+
+t_class *pdp_plasma_class;
+
+
+void *pdp_plasma_new(void)
+{
+    int i;
+
+    t_pdp_plasma *x = (t_pdp_plasma *)pd_new(pdp_plasma_class);
+
+    pdp_imagebase_init(x);
+    pdp_base_disable_active_inlet(x);
+    pdp_base_set_process_method(x, (t_pdp_method)pdp_plasma_process);
+    pdp_base_set_postproc_method(x, (t_pdp_method)pdp_plasma_postproc);
+    
+    pdp_base_add_gen_inlet(x, gensym("float"), gensym("turbulence"));
+    x->x_outlet0 = pdp_base_add_pdp_outlet(x);
+    x->x_packet0 = -1;
+
+    x->x_width = 320;
+    x->x_height = 240;
+
+    x->x_plasmagen = pdp_imageproc_plasma_new();
+
+    pdp_plasma_random(x, 0.0f);
+    pdp_plasma_type(x, gensym("yv12"));
+    pdp_plasma_turbulence(x, 0.1);
+
+
+    return (void *)x;
+}
+
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+
+void pdp_plasma_setup(void)
+{
+
+
+    pdp_plasma_class = class_new(gensym("pdp_plasma"), (t_newmethod)pdp_plasma_new,
+    	(t_method)pdp_plasma_free, sizeof(t_pdp_plasma), 0, A_NULL);
+
+    pdp_imagebase_setup(pdp_plasma_class);
+
+    class_addmethod(pdp_plasma_class, (t_method)pdp_plasma_random, gensym("seed"), A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_plasma_class, (t_method)pdp_plasma_turbulence, gensym("turbulence"), A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_plasma_class, (t_method)pdp_plasma_type, gensym("type"), A_SYMBOL, A_NULL);
+    class_addmethod(pdp_plasma_class, (t_method)pdp_plasma_dim, gensym("dim"), A_FLOAT, A_FLOAT, A_NULL);
+    class_addmethod(pdp_plasma_class, (t_method)pdp_plasma_bang, gensym("bang"), A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/image_basic/pdp_randmix.c b/modules/image_basic/pdp_randmix.c
new file mode 100644
index 0000000..2fd6adf
--- /dev/null
+++ b/modules/image_basic/pdp_randmix.c
@@ -0,0 +1,113 @@
+/*
+ *   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_randmix_struct
+{
+    t_pdp_imagebase x_base;
+    void *x_randmixer;
+ 
+} t_pdp_randmix;
+
+
+void pdp_randmix_random(t_pdp_randmix *x, t_floatarg seed)
+{
+    pdp_imageproc_randmix_setseed(x->x_randmixer, seed);
+}
+
+
+static void pdp_randmix_process(t_pdp_randmix *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    int p1 = pdp_base_get_packet(x, 1);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_2buf(&pdp_imageproc_randmix_process, x->x_randmixer, mask, p0, p1);
+
+}
+
+
+static void pdp_randmix_threshold(t_pdp_randmix *x, t_floatarg f)
+{
+    pdp_imageproc_randmix_setthreshold(x->x_randmixer, f);
+
+}
+
+
+
+static void pdp_randmix_free(t_pdp_randmix *x)
+{
+    pdp_imagebase_free(x);
+    pdp_imageproc_randmix_delete(x->x_randmixer);
+}
+
+t_class *pdp_randmix_class;
+
+
+void *pdp_randmix_new(void)
+{
+    int i;
+
+    t_pdp_randmix *x = (t_pdp_randmix *)pd_new(pdp_randmix_class);
+
+    pdp_imagebase_init(x);
+    pdp_base_add_pdp_inlet(x);
+    pdp_base_add_gen_inlet(x, gensym("float"), gensym("threshold"));
+
+    pdp_base_set_process_method(x, (t_pdp_method)pdp_randmix_process);
+    
+    pdp_base_add_pdp_outlet(x); 
+    x->x_randmixer = pdp_imageproc_randmix_new();
+
+    pdp_randmix_threshold(x, 0.5f);
+    pdp_randmix_random(x, 0.0f);
+
+    return (void *)x;
+}
+
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+
+void pdp_randmix_setup(void)
+{
+
+
+    pdp_randmix_class = class_new(gensym("pdp_randmix"), (t_newmethod)pdp_randmix_new,
+    	(t_method)pdp_randmix_free, sizeof(t_pdp_randmix), 0, A_NULL);
+
+    pdp_imagebase_setup(pdp_randmix_class);
+
+    class_addmethod(pdp_randmix_class, (t_method)pdp_randmix_threshold, gensym("threshold"), A_DEFFLOAT, A_NULL);
+    class_addmethod(pdp_randmix_class, (t_method)pdp_randmix_random, gensym("seed"), A_DEFFLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/image_basic/pdp_stateless.c b/modules/image_basic/pdp_stateless.c
new file mode 100644
index 0000000..cdcf313
--- /dev/null
+++ b/modules/image_basic/pdp_stateless.c
@@ -0,0 +1,185 @@
+/*
+ *   Pure Data Packet module. Some stateless image operations.
+ *   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_stateless_struct
+{
+    t_pdp_imagebase x_base;
+
+} t_pdp_stateless;
+
+
+
+static void pdp_stateless_process_abs(t_pdp_stateless *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_abs_process, 0, mask, p0);
+}
+
+static void pdp_stateless_process_hardthresh(t_pdp_stateless *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_hardthresh_process, 0, mask, p0);
+}
+
+static void pdp_stateless_process_zthresh(t_pdp_stateless *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_zthresh_process, 0, mask, p0);
+}
+
+static void pdp_stateless_process_positive(t_pdp_stateless *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_ispositive_process, 0, mask, p0);
+}
+
+static void pdp_stateless_process_sign(t_pdp_stateless *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_sign_process, 0, mask, p0);
+}
+
+static void pdp_stateless_process_flip_tb(t_pdp_stateless *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_flip_tb_process, 0, mask, p0);
+}
+
+static void pdp_stateless_process_flip_lr(t_pdp_stateless *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_1buf(&pdp_imageproc_flip_lr_process, 0, mask, p0);
+}
+
+static void pdp_stateless_free(t_pdp_stateless *x)
+{
+    /* remove process method from queue before deleting data */
+    pdp_imagebase_free(x);
+}
+
+t_class *pdp_stateless_class;
+
+
+/* common new method */
+void *pdp_stateless_new(void)
+{
+    t_pdp_stateless *x = (t_pdp_stateless *)pd_new(pdp_stateless_class);
+ 
+    /* super init */
+    pdp_imagebase_init(x);
+
+    /* outlet */
+    pdp_base_add_pdp_outlet(x);
+
+    return (void *)x;
+}
+
+void *pdp_stateless_new_abs(void)
+{
+     t_pdp_stateless *x = pdp_stateless_new();
+     /* init in/out */
+     pdp_base_set_process_method(x, (t_pdp_method)pdp_stateless_process_abs);
+     return (void *)x;
+}
+
+void *pdp_stateless_new_zthresh(void)
+{
+     t_pdp_stateless *x = pdp_stateless_new();
+     /* init in/out */
+     pdp_base_set_process_method(x, (t_pdp_method)pdp_stateless_process_zthresh);
+     return (void *)x;
+}
+
+void *pdp_stateless_new_positive(void)
+{
+     t_pdp_stateless *x = pdp_stateless_new();
+     /* init in/out */
+     pdp_base_set_process_method(x, (t_pdp_method)pdp_stateless_process_positive);
+     return (void *)x;
+}
+
+void *pdp_stateless_new_sign(void)
+{
+     t_pdp_stateless *x = pdp_stateless_new();
+     /* init in/out */
+     pdp_base_set_process_method(x, (t_pdp_method)pdp_stateless_process_sign);
+     return (void *)x;
+}
+
+void *pdp_stateless_new_flip_tb(void)
+{
+     t_pdp_stateless *x = pdp_stateless_new();
+     /* init in/out */
+     pdp_base_set_process_method(x, (t_pdp_method)pdp_stateless_process_flip_tb);
+     return (void *)x;
+}
+
+
+void *pdp_stateless_new_flip_lr(void)
+{
+     t_pdp_stateless *x = pdp_stateless_new();
+     /* init in/out */
+     pdp_base_set_process_method(x, (t_pdp_method)pdp_stateless_process_flip_lr);
+     return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_stateless_setup(void)
+{
+
+
+    pdp_stateless_class = class_new(gensym("pdp_abs"), (t_newmethod)pdp_stateless_new_abs,
+    	(t_method)pdp_stateless_free, sizeof(t_pdp_stateless), 0, A_NULL);
+
+    pdp_imagebase_setup(pdp_stateless_class);
+
+    class_addcreator((t_newmethod)pdp_stateless_new_zthresh, gensym("pdp_zthresh"), A_NULL);
+    class_addcreator((t_newmethod)pdp_stateless_new_positive, gensym("pdp_positive"), A_NULL);
+    class_addcreator((t_newmethod)pdp_stateless_new_sign, gensym("pdp_sign"), A_NULL);
+    class_addcreator((t_newmethod)pdp_stateless_new_flip_tb, gensym("pdp_flip_tb"), A_NULL);
+    class_addcreator((t_newmethod)pdp_stateless_new_flip_lr, gensym("pdp_flip_lr"), A_NULL);
+
+    /* future extensions */
+    //class_addcreator((t_newmethod)pdp_stateless_new_garble, gensym("pdp_garble"), A_NULL);
+  
+
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/modules/image_basic/pdp_zoom.c b/modules/image_basic/pdp_zoom.c
new file mode 100644
index 0000000..48ba167
--- /dev/null
+++ b/modules/image_basic/pdp_zoom.c
@@ -0,0 +1,221 @@
+/*
+ *   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_zoom_struct
+{
+    t_pdp_imagebase x_base;
+
+    int x_packet1;
+    t_outlet *x_outlet0;
+    void *x_zoom;
+
+    int x_quality; //not used
+
+    
+} t_pdp_zoom;
+
+
+static void pdp_zoom_process(t_pdp_zoom *x)
+{
+    int p0 = pdp_base_get_packet(x, 0);
+    u32 mask = pdp_imagebase_get_chanmask(x);
+    pdp_imageproc_dispatch_2buf(&pdp_imageproc_resample_affinemap_process, x->x_zoom, mask, p0, x->x_packet1);
+}
+
+static void pdp_zoom_postproc(t_pdp_zoom *x)
+{
+    /* delete source packet */
+    pdp_packet_mark_unused(pdp_base_move_packet(x, 0));
+
+    /* unregister and propagate if valid dest packet */
+    pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1);
+}
+
+static void pdp_zoom_preproc(t_pdp_zoom *x)
+{
+    int p = pdp_base_get_packet(x, 0);
+    t_pdp *header0 = pdp_packet_header(p);
+    if ((header0) && (PDP_IMAGE == header0->type)){
+	x->x_packet1 = pdp_packet_clone_rw(p);
+    }
+
+}
+
+
+
+static void pdp_zoom_zoom_x(t_pdp_zoom *x, t_floatarg f)
+{
+    pdp_imageproc_resample_affinemap_setzoomx(x->x_zoom, f);
+}
+
+static void pdp_zoom_angle(t_pdp_zoom *x, t_floatarg f)
+{
+    pdp_imageproc_resample_affinemap_setangle(x->x_zoom, f);
+}
+
+static void pdp_zoom_zoom_y(t_pdp_zoom *x, t_floatarg f)
+{
+    pdp_imageproc_resample_affinemap_setzoomy(x->x_zoom, f);
+}
+
+static void pdp_zoom_zoom(t_pdp_zoom *x, t_floatarg f)
+{
+    pdp_zoom_zoom_x(x, f);
+    pdp_zoom_zoom_y(x, f);
+}
+
+static void pdp_zoom_center_x(t_pdp_zoom *x, t_floatarg f)
+{
+    pdp_imageproc_resample_affinemap_setcenterx(x->x_zoom, f);
+}
+
+static void pdp_zoom_center_y(t_pdp_zoom *x, t_floatarg f)
+{
+    pdp_imageproc_resample_affinemap_setcentery(x->x_zoom, f);
+}
+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);
+}
+
+// not used
+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_imagebase_free(x);
+    pdp_imageproc_resample_affinemap_delete(x->x_zoom);
+    pdp_packet_mark_unused(x->x_packet1);
+}
+
+
+void pdp_zoom_init_common(t_pdp_zoom *x)
+{
+    pdp_imagebase_init(x);
+    pdp_base_set_process_method(x, (t_pdp_method)pdp_zoom_process);
+    pdp_base_set_postproc_method(x, (t_pdp_method)pdp_zoom_postproc);
+    pdp_base_set_preproc_method(x, (t_pdp_method)pdp_zoom_preproc);
+
+    x->x_outlet0 = pdp_base_add_pdp_outlet(x); 
+    x->x_packet1 = -1;
+    x->x_zoom = pdp_imageproc_resample_affinemap_new();
+
+    //quality is not used: all routines are "high quality" bilinear
+    //pdp_zoom_quality(x, 1);
+    pdp_zoom_center_x(x, 0.5f);
+    pdp_zoom_center_y(x, 0.5f);
+  
+}
+
+
+void *pdp_zoom_new(t_floatarg zoom)
+{
+    t_pdp_zoom *x = (t_pdp_zoom *)pd_new(pdp_zoom_class);
+
+    pdp_zoom_init_common(x);
+    pdp_base_add_gen_inlet(x, gensym("float"), gensym("zoom"));
+
+    if (zoom == 0.0f) zoom = 1.0f;
+    pdp_zoom_zoom(x, zoom);
+    pdp_zoom_angle(x, 0.0f);
+
+    return (void *)x;
+}
+
+void *pdp_zrot_new(t_floatarg zoom, t_floatarg angle)
+{
+    t_pdp_zoom *x = (t_pdp_zoom *)pd_new(pdp_zoom_class);
+
+    pdp_zoom_init_common(x);
+    pdp_base_add_gen_inlet(x, gensym("float"), gensym("zoom"));
+    pdp_base_add_gen_inlet(x, gensym("float"), gensym("angle"));
+
+
+    if (zoom == 0.0f) zoom = 1.0f;
+    pdp_zoom_zoom(x, zoom);
+    pdp_zoom_angle(x, angle);
+
+    return (void *)x;
+}
+
+void *pdp_rotate_new(t_floatarg angle)
+{
+    t_pdp_zoom *x = (t_pdp_zoom *)pd_new(pdp_zoom_class);
+
+    pdp_zoom_init_common(x);
+
+    pdp_base_add_gen_inlet(x, gensym("float"), gensym("angle"));
+
+    pdp_zoom_zoom(x, 1.0f);
+    pdp_zoom_angle(x, angle);
+
+    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_NULL);
+
+    class_addcreator((t_newmethod)pdp_zrot_new, gensym("pdp_zrot"), A_DEFFLOAT, A_DEFFLOAT, A_NULL);
+    class_addcreator((t_newmethod)pdp_rotate_new, gensym("pdp_rotate"), A_DEFFLOAT, A_NULL);
+
+    pdp_imagebase_setup(pdp_zoom_class);
+
+    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_zoom_x, gensym("zoomx"),  A_FLOAT, A_NULL);   
+    class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_zoom_y, gensym("zoomy"),  A_FLOAT, A_NULL);   
+    class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_zoom, gensym("zoom"),  A_FLOAT, A_NULL);   
+    class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_angle, gensym("angle"),  A_FLOAT, A_NULL);   
+
+
+}
+
+#ifdef __cplusplus
+}
+#endif