From 6c73d9a340902bfbf1b1e469c21d0de2fcfc78be Mon Sep 17 00:00:00 2001
From: b <rowerynaksiezycu@gmail.com>
Date: Tue, 15 Nov 2022 22:27:33 +0100
Subject: [PATCH] fix indexing bugs & such stuff

---
 bluenh.c |  6 +++---
 core.c   | 14 +++++++-------
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/bluenh.c b/bluenh.c
index bb0f61b..323f24c 100644
--- a/bluenh.c
+++ b/bluenh.c
@@ -194,9 +194,9 @@ void calculate_bluenh_parameters (struct bluenh_data *data)
 	data->r_high = (ILint64)(data->f) - (ILint64)(data->e);
 	data->s_high = (ILint64)(data->c) - (ILint64)(data->b);
 	data->t_high =((ILint64)(data->e))*((ILint64)(data->c))-((ILint64)(data->b))*((ILint64)(data->f));
-	data->r_high = (ILint64)(data->e) - (ILint64)(data->d);
-	data->s_high = (ILint64)(data->b) - (ILint64)(data->a);
-	data->t_high =((ILint64)(data->d))*((ILint64)(data->b))-((ILint64)(data->a))*((ILint64)(data->e));
+	data->r_low = (ILint64)(data->e) - (ILint64)(data->d);
+	data->s_low = (ILint64)(data->b) - (ILint64)(data->a);
+	data->t_low =((ILint64)(data->d))*((ILint64)(data->b))-((ILint64)(data->a))*((ILint64)(data->e));
 }
 
 static inline ILuint bluenh_linear (ILuint x, ILint64 r, ILint64 s, ILint64 t, ILuint max)
diff --git a/core.c b/core.c
index 2a789df..9b2ed4b 100644
--- a/core.c
+++ b/core.c
@@ -1053,10 +1053,10 @@ int perform_action (
 	uint_fast8_t skip_frame;
 	uint_fast8_t skip_line;
 	uint_fast8_t skip_pixel;
-	ILint actual_frames = 0xFFFFFFFF;
-	ILint actual_width  = 0xFFFFFFFF;
-	ILint actual_height = 0xFFFFFFFF;
-	ILint actual_colours= 0xFFFFFFFF;
+	ILint actual_frames = 0x7FFFFFFF;
+	ILint actual_width  = 0x7FFFFFFF;
+	ILint actual_height = 0x7FFFFFFF;
+	ILint actual_colours= 0x7FFFFFFF;
 	ILint x, y, f;
 	struct PixelInfo *p;
 	int r = 0;
@@ -1130,7 +1130,7 @@ int perform_action (
 	for (f = 0; (f < frames) && (r == 0); ++f)
 	{
 		skip_frame = 0;
-		for (i=0; i<n; ++n)
+		for (i=0; i<n; ++i)
 		{
 			p[i].f_window = f;
 			p[i].f_pict = p[i].f0 + f;
@@ -1313,7 +1313,7 @@ int perform_action (
 						
 						p[i].x_window = 0;
 						p[i].x_pict = p[i].x0;
-						p[i].pixel_offset = p[i].line_offset + (p[i].x_pict * p[i].info.image_bytes_per_pixel);						
+						p[i].pixel_offset = p[i].line_offset + (p[i].x_pict * p[i].info.image_bytes_per_pixel);
 					}
 					if (!skip_line)
 					{
@@ -1508,7 +1508,7 @@ int perform_action (
 							{
 								++(p[i].x_window);
 								++(p[i].x_pict);
-								p[i].pixel_offset = p[i].info.image_bytes_per_pixel;
+								p[i].pixel_offset += p[i].info.image_bytes_per_pixel;
 							}
 						}
 					}
-- 
2.30.2