From dc61ac7f85e6f3788bce240f6a1a7f89fea02184 Mon Sep 17 00:00:00 2001
From: fruchti <fruchti@gvfr.de>
Date: Sat, 24 Aug 2024 20:51:17 +0200
Subject: [PATCH] Optionally print debug information

---
 build-number.txt |  2 +-
 src/config.h     |  5 ++++-
 src/main.c       | 18 ++++++++++++++++++
 src/main.h       |  1 +
 4 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/build-number.txt b/build-number.txt
index 3bfc51a..11a42ac 100644
--- a/build-number.txt
+++ b/build-number.txt
@@ -1 +1 @@
-562
+615
diff --git a/src/config.h b/src/config.h
index 61e22c4..7a9b0db 100644
--- a/src/config.h
+++ b/src/config.h
@@ -15,4 +15,7 @@
 #define CONFIG_MIN_FRAMES       2
 
 // Maximum number of frames to wait. Capture even if it is not within tolerance.
-#define CONFIG_MAX_FRAMES       15
\ No newline at end of file
+#define CONFIG_MAX_FRAMES       15
+
+// Print number of black pixels per captured frame
+// #define CONFIG_PRINT_EXPOSURE_DEBUG_INFORMATION
\ No newline at end of file
diff --git a/src/main.c b/src/main.c
index 2085066..108a766 100644
--- a/src/main.c
+++ b/src/main.c
@@ -22,6 +22,24 @@ int main(void)
     extern uint8_t ImageBuffer[CAMERA_IMAGE_WIDTH * CAMERA_IMAGE_HEIGHT / 8];
     Print_Image(ImageBuffer, CAMERA_IMAGE_WIDTH, CAMERA_IMAGE_HEIGHT, 2);
 
+#ifdef CONFIG_PRINT_EXPOSURE_DEBUG_INFORMATION
+    char buffer[32] = "Finished after lines: ";
+    itoa(Camera_FinalFrameCount, buffer + strlen(buffer), 10);
+
+    Print_Text(buffer, &Arpegius_32);
+    Print_Text("Black pixel counts:", &Arpegius_32);
+    for(int i = 0; i < Camera_FinalFrameCount; i++)
+    {
+        if(i >= (int)(sizeof(Camera_BlackPixelCounts)
+            / sizeof(Camera_BlackPixelCounts[0])))
+        {
+            break;
+        }
+        itoa(Camera_BlackPixelCounts[i], buffer, 10);
+        Print_Text(buffer, &Arpegius_32);
+    }
+#endif
+
     LTP1245_FeedPaper(100);
 
     BMP_Save(ImageBuffer, CAMERA_IMAGE_WIDTH, CAMERA_IMAGE_HEIGHT);
diff --git a/src/main.h b/src/main.h
index fd56361..532c2d3 100644
--- a/src/main.h
+++ b/src/main.h
@@ -16,6 +16,7 @@
 #include "font_arpegius_16.h"
 #include "font_arpegius_32.h"
 #include "bmp.h"
+#include "config.h"
 
 int main(void);