first run of the filterstack

2020-12-03 21:56:45 +01:00
parent 3fb8dfcdb7
commit 77a137a168
4 changed files with 184 additions and 39 deletions
--- a/Fonderie/filterstack.c
+++ b/Fonderie/filterstack.c
@@ -0,0 +1,109 @@
+/*
+ *		filterstack.c
+ */
+
+#include  <stdio.h>
+#include  <stdlib.h>
+
+#include  "../floatimg.h"
+#include  "filterstack.h"
+
+#undef  DEBUG_LEVEL
+#define DEBUG_LEVEL 1
+
+/* -------------------------------------------------------------- */
+static	FilterSlot 	*stack_slots;
+static  int		nbre_filters, idx_slot;
+/* -------------------------------------------------------------- */
+int filterstack_init(int nbre)
+{
+FilterSlot	*fsptr;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %d )\n", __func__, nbre);
+#endif
+
+if (NULL != stack_slots) {
+	fprintf(stderr, "ERR stack_slots = %p\n",stack_slots);
+	return -1;
+	} 
+fsptr = calloc(nbre, sizeof(FilterSlot));
+if (NULL == fsptr) {
+	fprintf(stderr, "%s : no memory\n", __func__);
+	exit(1);
+	}
+
+stack_slots = fsptr;
+nbre_filters = nbre;
+idx_slot = 0;
+
+fprintf(stderr, "%s: stack at %p\n", __func__, stack_slots); 
+
+return 0;
+}
+/* -------------------------------------------------------------- */
+int filterstack_add(int code, int ival, float fval)
+{
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %d %d %f )\n", __func__, code, ival, fval);
+#endif
+
+if (NULL==stack_slots) {
+	fprintf(stderr, "%s: NULL statck !\n", __func__);
+	exit(1);
+	}
+if (idx_slot == nbre_filters) {
+	fprintf(stderr, "%s: stack is full\n", __func__);
+	return -1;
+	}
+
+stack_slots[idx_slot].numero = code;
+stack_slots[idx_slot].ival   = ival;
+stack_slots[idx_slot].fval   = fval;
+
+idx_slot++;
+
+return 0;
+}
+/* -------------------------------------------------------------- */
+int filterstack_list(void)
+{
+int		idx;
+
+fprintf(stderr, "stack at %p, size %d, current %d\n",
+			stack_slots, nbre_filters, idx_slot); 
+for (idx=0; idx<idx_slot; idx++) {
+
+	fprintf(stderr, "%3d    %3d    %3d    %f\n", idx,
+			stack_slots[idx].numero,
+			stack_slots[idx].ival,
+			stack_slots[idx].fval);
+
+	}
+
+return 0;
+}
+/* -------------------------------------------------------------- */
+int filterstack_run(FloatImg *target, int notused)
+{
+int		idx, foo;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %p %d)\n", __func__, target, notused);
+#endif
+
+for (idx=0; idx<idx_slot; idx++) {
+
+	fprintf(stderr, "%d : effect %2d on %p\n",
+			idx, stack_slots[idx].numero, target);
+
+	foo = crapulator(target, stack_slots[idx].numero, 0.0);
+	if (foo) {
+		fprintf(stderr, "crapulator error %d\n", foo);
+		return foo;
+		}
+	}
+
+return 0;
+}
+/* -------------------------------------------------------------- */