From 6142f73db27cef29246291fd09227cc7bc3d4b15 Mon Sep 17 00:00:00 2001
From: Selene ToyKeeper
Date: Fri, 14 Apr 2023 20:51:40 -0600
Subject: LT1S: added thermal regulation ... and a bunch of gradual_tick
 functions ... and abstracted out some of the tint calculations ... and moved
 some UI settings into cfg.h

---
 spaghetti-monster/fsm-ramping.h | 41 ++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 40 insertions(+), 1 deletion(-)

(limited to 'spaghetti-monster/fsm-ramping.h')

diff --git a/spaghetti-monster/fsm-ramping.h b/spaghetti-monster/fsm-ramping.h
index 028157f..8a12cc8 100644
--- a/spaghetti-monster/fsm-ramping.h
+++ b/spaghetti-monster/fsm-ramping.h
@@ -97,7 +97,46 @@ void set_level(uint8_t level);
 uint8_t gradual_target;
 inline void set_level_gradually(uint8_t lvl);
 void gradual_tick();
-#endif
+
+// reduce repetition with macros
+// common code at the beginning of every gradual tick handler
+#define GRADUAL_TICK_SETUP()  \
+    uint8_t gt = gradual_target;  \
+    if (gt < actual_level) gt = actual_level - 1;  \
+    else if (gt > actual_level) gt = actual_level + 1;  \
+    gt --;  \
+    PWM_DATATYPE target;
+
+// tick to a specific value
+#define GRADUAL_ADJUST_SIMPLE(TARGET,PWM)  \
+    if (PWM < TARGET) PWM ++;  \
+    else if (PWM > TARGET) PWM --;
+
+// tick the top layer of the stack
+#define GRADUAL_ADJUST_1CH(TABLE,PWM)  \
+    target = PWM_GET(TABLE, gt);  \
+    if (PWM < target) PWM ++;  \
+    else if (PWM > target) PWM --;
+
+// tick a base level of the stack
+// (with support for special DD FET behavior
+//  like "low=0, high=255" --> "low=255, high=254")
+#define GRADUAL_ADJUST(TABLE,PWM,TOP)  \
+    target = PWM_GET(TABLE, gt);  \
+    if ((gt < actual_level)  \
+        && (PWM == 0)  \
+        && (target == TOP)) PWM = TOP;  \
+    else  \
+    if (PWM < target) PWM ++;  \
+    else if (PWM > target) PWM --;
+
+// do this when output exactly matches a ramp level
+#define GRADUAL_IS_ACTUAL()  \
+    uint8_t orig = gradual_target;  \
+    set_level(gt + 1);  \
+    gradual_target = orig;
+
+#endif  // ifdef USE_SET_LEVEL_GRADUALLY
 
 // auto-detect the data type for PWM tables
 // FIXME: PWM bits and data type should be per PWM table
-- 
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