render speed

semestralka1/src/main.cpp

@@ -22,5 +22,5 @@ int main(void) {
     printf("Baud: %d, Format: 8-N-1\r\n", BAUD_RATE);
 
     // Just call into render feature
-    render_loop();
+    render_loop(4);
 }

semestralka1/src/render/background.cpp

@@ -5,7 +5,7 @@
 #include <cstring>
 
 void draw_mask(const char *unused_filename, int shift, const char *text) {
-    const int view_width = 50;
+    const int view_width = 90;
     const int view_height = 16;
 
     // Terminal clear + home

semestralka1/src/render/loop.cpp

@@ -1,4 +1,4 @@
-// src/render/loop.c
+// src/render/loop.cpp
 
 #include "loop.h"
 #include "mbed.h"
@@ -15,7 +15,7 @@ static bool message_active = false;
 
 void draw_mask(const char *unused_filename, int shift, const char *text = nullptr);
 
-void render_loop() {
+void render_loop(int speed) {
     Timer msg_timer;
     Timer anim_timer;
     msg_timer.start();
@@ -49,8 +49,9 @@ void render_loop() {
         }
 
         // Animation tick
-        if (anim_timer.elapsed_time() >= 80ms) {
-            shift++;
+        if (anim_timer.elapsed_time() >= 200ms) {
+	    // speed determines scroll steps per tick
+            shift += speed;
             anim_timer.reset();
             need_redraw = true;
         }
@@ -59,9 +60,9 @@ void render_loop() {
         if (need_redraw) {
             draw_mask(bg_file, shift, message_active ? message : nullptr);
             need_redraw = false;
-            ThisThread::sleep_for(60ms);
+            ThisThread::sleep_for(50ms);
         }
 
-        ThisThread::sleep_for(20ms);
+        ThisThread::sleep_for(25ms);
     }
 }

semestralka1/src/render/loop.h

@@ -3,4 +3,4 @@
 #pragma once
 
 // Runs the render loop: reads UART, animates, and draws output
-void render_loop();
+void render_loop(int speed);