Updating pdp to current version 0.12.2

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

1 files changed, 144 insertions, 0 deletions

diff --git a/modules/image_special/pdp_chrot.c b/modules/image_special/pdp_chrot.c
new file mode 100644
index 0000000..27993c6
--- /dev/null
+++ b/modules/image_special/pdp_chrot.c
@@ -0,0 +1,144 @@
+/*
+ *   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_base.h"
+#include <math.h>
+
+
+typedef struct pdp_chrot_struct
+{
+    t_pdp_base x_base;
+
+    float x_matrix[4];
+    void *x_crot2d;
+
+} t_pdp_chrot;
+
+
+
+static void pdp_chrot_process(t_pdp_chrot *x)
+{
+    int packet;
+    t_pdp *header;
+    void  *data;
+    unsigned int w,h,size,v_offset;
+    short int *idata;
+
+
+    /* get packet & info */
+    packet = pdp_base_get_packet(x, 0);
+    header = pdp_packet_header(packet);
+    data   = pdp_packet_data  (packet);
+
+    /* only process if we have a vlid yv12 image */
+    if ((header) && (PDP_IMAGE == header->type) && (PDP_IMAGE_YV12 == header->info.image.encoding)){
+
+	w = header->info.image.width;
+	h = header->info.image.height;
+
+	size = w*h;
+	v_offset = size;
+	
+	idata = (short int *)data;
+
+    
+	/* color rotation for 2 colour planes */
+	pdp_imageproc_crot2d_process(x->x_crot2d, idata + v_offset, w>>1, h>>1);
+
+    }
+    return;
+}
+
+
+static void pdp_chrot_setelement(t_pdp_chrot *x, int element, float f)
+{
+    x->x_matrix[element] = f;
+	
+}
+
+static void pdp_chrot_angle_radians(t_pdp_chrot *x, t_floatarg angle)
+{
+    float c = cos(angle);
+    float s = sin(angle);
+
+    pdp_chrot_setelement(x, 0, c);
+    pdp_chrot_setelement(x, 1, s);
+    pdp_chrot_setelement(x, 2, -s);
+    pdp_chrot_setelement(x, 3, c);
+
+    pdp_imageproc_crot2d_setmatrix(x->x_crot2d, x->x_matrix);
+}
+
+static void pdp_chrot_angle_degrees(t_pdp_chrot *x, t_floatarg angle)
+{
+    pdp_chrot_angle_radians(x, (angle * (M_PI / 180.f)));
+
+}
+
+static void pdp_chrot_free(t_pdp_chrot *x)
+{
+    pdp_base_free(x);
+    pdp_imageproc_crot2d_delete(x->x_crot2d);
+}
+
+t_class *pdp_chrot_class;
+
+
+
+void *pdp_chrot_new(t_floatarg f)
+{
+    t_pdp_chrot *x = (t_pdp_chrot *)pd_new(pdp_chrot_class);
+
+    pdp_base_init(x);
+    pdp_base_add_gen_inlet(x, gensym("float"), gensym("angle"));
+    pdp_base_add_pdp_outlet(x);
+    pdp_base_set_process_method(x, (t_pdp_method)pdp_chrot_process);
+
+    x->x_crot2d = pdp_imageproc_crot2d_new();
+    pdp_chrot_angle_radians(x, 0.0f);
+
+    return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_chrot_setup(void)
+{
+
+
+    pdp_chrot_class = class_new(gensym("pdp_chrot"), (t_newmethod)pdp_chrot_new,
+    	(t_method)pdp_chrot_free, sizeof(t_pdp_chrot), 0, A_DEFFLOAT, A_NULL);
+
+    pdp_base_setup(pdp_chrot_class);
+    class_addmethod(pdp_chrot_class, (t_method)pdp_chrot_angle_degrees, gensym("angle"),  A_DEFFLOAT, A_NULL);   
+
+}
+
+#ifdef __cplusplus
+}
+#endif