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-rw-r--r--modules/pdp_background.c188
1 files changed, 188 insertions, 0 deletions
diff --git a/modules/pdp_background.c b/modules/pdp_background.c
new file mode 100644
index 0000000..130253d
--- /dev/null
+++ b/modules/pdp_background.c
@@ -0,0 +1,188 @@
+/*
+ * PiDiP module.
+ * Copyright (c) by Yves Degoyon (ydegoyon@free.fr)
+ *
+ * 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 "yuv.h"
+#include "time.h"
+#include "sys/time.h"
+
+#define DEFAULT_RED_VALUE 255
+#define DEFAULT_GREEN_VALUE 255
+#define DEFAULT_BLUE_VALUE 255
+#define DEFAULT_WIDTH 320
+#define DEFAULT_HEIGHT 240
+
+typedef struct pdp_background_struct
+{
+ t_object x_obj;
+
+ t_outlet *x_outlet0;
+
+ t_int x_packet0;
+
+ t_int x_colorR;
+ t_int x_colorG;
+ t_int x_colorB;
+ t_int x_colorY;
+ t_int x_colorU;
+ t_int x_colorV;
+
+ t_int x_width;
+ t_int x_height;
+
+} t_pdp_background;
+
+static void pdp_background_bang(t_pdp_background *x)
+{
+
+ t_pdp *header;
+ unsigned char *data;
+ unsigned char *pY, *pU, *pV;
+ t_int px, py;
+
+ x->x_packet0 = pdp_packet_new_bitmap_yv12( x->x_width, x->x_height );
+
+ data = (char *)pdp_packet_data(x->x_packet0);
+ pY = data;
+ pV = data+(x->x_width*x->x_height);
+ pU = data+(x->x_width*x->x_height)+((x->x_width*x->x_height)>>2);
+
+ memset( pY, (unsigned char)x->x_colorY, x->x_width*x->x_height );
+ memset( pV, (unsigned char)x->x_colorV, (x->x_width*x->x_height>>2) );
+ memset( pU, (unsigned char)x->x_colorU, (x->x_width*x->x_height>>2) );
+
+ pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet0);
+
+}
+
+static void pdp_background_dim(t_pdp_background *x, t_floatarg fwidth, t_floatarg fheight)
+{
+ if ( ( (t_int)fwidth>0 ) && ( (t_int) fheight>0 ) )
+ {
+ if ( ((t_int)fwidth)%8 == 0 )
+ {
+ x->x_width = (t_int)fwidth;
+ }
+ else
+ {
+ x->x_width = (t_int)fwidth + (8-((t_int)fwidth)%8); // align on 8
+ }
+ if ( ((t_int)fheight)%8 == 0 )
+ {
+ x->x_height = (t_int)fheight;
+ }
+ else
+ {
+ x->x_height = (t_int)fheight + (8-((t_int)fheight)%8); // align on 8
+ }
+ }
+}
+
+static void pdp_background_red(t_pdp_background *x, t_floatarg fred)
+{
+ if ( ( (t_int)fred>=0 ) && ( (t_int) fred <= 255 ) )
+ {
+ x->x_colorR = (t_int) fred;
+ x->x_colorY = yuv_RGBtoY( (x->x_colorR << 16) + (x->x_colorG << 8) + x->x_colorB );
+ x->x_colorU = yuv_RGBtoU( (x->x_colorR << 16) + (x->x_colorG << 8) + x->x_colorB );
+ x->x_colorV = yuv_RGBtoV( (x->x_colorR << 16) + (x->x_colorG << 8) + x->x_colorB );
+ }
+}
+
+static void pdp_background_green(t_pdp_background *x, t_floatarg fgreen)
+{
+ if ( ( (t_int)fgreen>=0 ) && ( (t_int) fgreen <= 255 ) )
+ {
+ x->x_colorG = (t_int) fgreen;
+ x->x_colorY = yuv_RGBtoY( (x->x_colorR << 16) + (x->x_colorG << 8) + x->x_colorB );
+ x->x_colorU = yuv_RGBtoU( (x->x_colorR << 16) + (x->x_colorG << 8) + x->x_colorB );
+ x->x_colorV = yuv_RGBtoV( (x->x_colorR << 16) + (x->x_colorG << 8) + x->x_colorB );
+ }
+}
+
+static void pdp_background_blue(t_pdp_background *x, t_floatarg fblue)
+{
+ if ( ( (t_int)fblue>=0 ) && ( (t_int) fblue <= 255 ) )
+ {
+ x->x_colorB = (t_int) fblue;
+ x->x_colorY = yuv_RGBtoY( (x->x_colorR << 16) + (x->x_colorG << 8) + x->x_colorB );
+ x->x_colorU = yuv_RGBtoU( (x->x_colorR << 16) + (x->x_colorG << 8) + x->x_colorB );
+ x->x_colorV = yuv_RGBtoV( (x->x_colorR << 16) + (x->x_colorG << 8) + x->x_colorB );
+ }
+}
+
+static void pdp_background_free(t_pdp_background *x)
+{
+ // nothing to do
+}
+
+t_class *pdp_background_class;
+
+void *pdp_background_new(void)
+{
+ t_pdp_background *x = (t_pdp_background *)pd_new(pdp_background_class);
+
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("red"));
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("green"));
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("blue"));
+
+ x->x_outlet0 = outlet_new(&x->x_obj, &s_anything);
+
+ x->x_colorR = DEFAULT_RED_VALUE;
+ x->x_colorG = DEFAULT_GREEN_VALUE;
+ x->x_colorB = DEFAULT_BLUE_VALUE;
+
+ x->x_colorY = yuv_RGBtoY( (x->x_colorR << 16) + (x->x_colorG << 8) + x->x_colorB );
+ x->x_colorU = yuv_RGBtoU( (x->x_colorR << 16) + (x->x_colorG << 8) + x->x_colorB );
+ x->x_colorV = yuv_RGBtoV( (x->x_colorR << 16) + (x->x_colorG << 8) + x->x_colorB );
+
+ x->x_width = DEFAULT_WIDTH;
+ x->x_height = DEFAULT_HEIGHT;
+
+ x->x_packet0 = -1;
+
+ return (void *)x;
+}
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_background_setup(void)
+{
+ pdp_background_class = class_new(gensym("pdp_background"), (t_newmethod)pdp_background_new,
+ (t_method)pdp_background_free, sizeof(t_pdp_background), 0, A_NULL);
+
+ class_addmethod(pdp_background_class, (t_method)pdp_background_bang, gensym("bang"), A_NULL);
+ class_addmethod(pdp_background_class, (t_method)pdp_background_red, gensym("red"), A_FLOAT, A_NULL);
+ class_addmethod(pdp_background_class, (t_method)pdp_background_green, gensym("green"), A_FLOAT, A_NULL);
+ class_addmethod(pdp_background_class, (t_method)pdp_background_blue, gensym("blue"), A_FLOAT, A_NULL);
+ class_addmethod(pdp_background_class, (t_method)pdp_background_dim, gensym("dim"), A_FLOAT, A_FLOAT, A_NULL);
+ class_sethelpsymbol( pdp_background_class, gensym("pdp_background.pd") );
+
+}
+
+#ifdef __cplusplus
+}
+#endif
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