This commit was generated by cvs2svn to compensate for changes in r352,svn2git-root

which included commits to RCS files with non-trunk default branches.

svn path=/trunk/externals/pdp/; revision=353

1 files changed, 264 insertions, 0 deletions

diff --git a/modules/pdp_zoom.c b/modules/pdp_zoom.c
new file mode 100644
index 0000000..33207ce
--- /dev/null
+++ b/modules/pdp_zoom.c
@@ -0,0 +1,264 @@
+/*
+ *   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_resample.h"
+
+
+
+typedef struct pdp_zoom_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;
+
+    float x_zoom_x;
+    float x_zoom_y;
+
+    float x_center_x;
+    float x_center_y;
+
+    int x_quality; //not used
+
+    
+} t_pdp_zoom;
+
+
+static void pdp_zoom_process_yv12(t_pdp_zoom *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;
+
+    short int *src_image = (short int *)data0;
+    short int *dst_image = (short int *)data1;
+
+    unsigned int size = w * h;
+    unsigned int voffset = size;
+    unsigned int uoffset = size + (size>>2);
+
+
+    pdp_resample_zoom_tiled_bilin(src_image, dst_image, w, h, x->x_zoom_x, x->x_zoom_y, x->x_center_x, x->x_center_y);
+    pdp_resample_zoom_tiled_bilin(src_image+voffset, dst_image+voffset, w>>1, h>>1, x->x_zoom_x, x->x_zoom_y, x->x_center_x, x->x_center_y);
+    pdp_resample_zoom_tiled_bilin(src_image+uoffset, dst_image+uoffset, w>>1, h>>1, x->x_zoom_x, x->x_zoom_y, x->x_center_x, x->x_center_y);
+
+    return;
+}
+
+static void pdp_zoom_process_grey(t_pdp_zoom *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;
+
+    short int *src_image = (short int *)data0;
+    short int *dst_image = (short int *)data1;
+
+    pdp_resample_zoom_tiled_bilin(src_image, dst_image, w, h, x->x_zoom_x, x->x_zoom_y, x->x_center_x, x->x_center_y);
+
+    return;
+
+}
+
+static void pdp_zoom_sendpacket(t_pdp_zoom *x)
+{
+    /* delete source packet */
+    pdp_packet_mark_unused(x->x_packet0);
+    x->x_packet0 = -1;
+
+    /* unregister and propagate if valid dest packet */
+    pdp_pass_if_valid(x->x_outlet0, &x->x_packet1);
+}
+
+static void pdp_zoom_process(t_pdp_zoom *x)
+{
+    t_pdp *header0 = pdp_packet_header(x->x_packet0);
+
+    /* check data packets */
+
+    if ((header0) && (PDP_IMAGE == header0->type)){
+
+
+	/* type hub */
+	switch(header0->info.image.encoding){
+
+	case PDP_IMAGE_YV12:
+	    x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
+	    pdp_queue_add(x, pdp_zoom_process_yv12, pdp_zoom_sendpacket, &x->x_queue_id);
+	    break;
+
+	case PDP_IMAGE_GREY:
+	    x->x_packet1 = pdp_packet_clone_rw(x->x_packet0);
+	    pdp_queue_add(x, pdp_zoom_process_grey, pdp_zoom_sendpacket, &x->x_queue_id);
+	    break;
+
+	default:
+	    break;
+	    /* don't know the type, so dont process */
+	    
+	}
+    }
+
+}
+
+
+
+
+static void pdp_zoom_input_0(t_pdp_zoom *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_zoom_process(x);
+
+    }
+
+}
+
+
+
+
+static void pdp_zoom_x(t_pdp_zoom *x, t_floatarg f)
+{
+    x->x_zoom_x = f;
+}
+
+static void pdp_zoom_y(t_pdp_zoom *x, t_floatarg f)
+{
+    x->x_zoom_y = f;
+}
+
+static void pdp_zoom(t_pdp_zoom *x, t_floatarg f)
+{
+    pdp_zoom_x(x, f);
+    pdp_zoom_y(x, f);
+}
+
+static void pdp_zoom_center_x(t_pdp_zoom *x, t_floatarg f)
+{
+    x->x_center_x = (f + 0.5f);
+}
+
+static void pdp_zoom_center_y(t_pdp_zoom *x, t_floatarg f)
+{
+    x->x_center_y = (f + 0.5f);
+}
+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);
+}
+
+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_queue_finish(x->x_queue_id);
+    pdp_packet_mark_unused(x->x_packet0);
+    pdp_packet_mark_unused(x->x_packet1);
+}
+
+void *pdp_zoom_new(t_floatarg fw, t_floatarg zoom)
+{
+    t_pdp_zoom *x = (t_pdp_zoom *)pd_new(pdp_zoom_class);
+
+    inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("zoom"));
+
+  
+
+    x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); 
+
+    x->x_packet0 = -1;
+    x->x_packet1 = -1;
+    x->x_queue_id = -1;
+
+    pdp_zoom_quality(x, 1);
+    pdp_zoom_center_x(x, 0);
+    pdp_zoom_center_y(x, 0);
+
+    if (zoom = 0.0f) zoom = 1.0f;
+    pdp_zoom(x, zoom);
+
+    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_DEFFLOAT, A_NULL);
+
+
+    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_x, gensym("zoomx"),  A_FLOAT, A_NULL);   
+    class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_y, gensym("zoomy"),  A_FLOAT, A_NULL);   
+    class_addmethod(pdp_zoom_class, (t_method)pdp_zoom, gensym("zoom"),  A_FLOAT, A_NULL);   
+    class_addmethod(pdp_zoom_class, (t_method)pdp_zoom_input_0, gensym("pdp"),  A_SYMBOL, A_DEFFLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif