From: Bastian Dehn <hhaalo@arcor.de>
Date: Thu, 6 Feb 2025 19:28:34 +0000 (+0100)
Subject: change convert bytes to pixels
X-Git-Tag: v1.0.32^2~2
X-Git-Url: https://gitweb.hhaalo.de/?a=commitdiff_plain;h=1fcd30b072b4a681b1698a9668dd37fe2fb6a95e;p=sane-kds-s2000w-net.git

change convert bytes to pixels
---

diff --git a/src/kds_s2000w_image_converter_netpbm.c b/src/kds_s2000w_image_converter_netpbm.c
index b4672dd..296d266 100644
--- a/src/kds_s2000w_image_converter_netpbm.c
+++ b/src/kds_s2000w_image_converter_netpbm.c
@@ -146,6 +146,16 @@ unsigned char _kds_s2000w_image_converter_mirror_bits(unsigned char data)
 	return mirrored;
 }
 
+void _kds_s2000w_image_converter_set_pixels(unsigned char data_byte, xel* pixels)
+{
+	unsigned char bit = 0;
+	for (int i = 0; i < BYTE_BITS; i++) {
+		bit = data_byte >> i;
+		if (bit == 0)
+			pixels[i].b = PNM_MAXMAXVAL;
+	}
+}
+
 void _kds_s2000w_image_converter_write_bw_pnm(unsigned char* data,
 	size_t size,
 	int width,
@@ -163,18 +173,11 @@ void _kds_s2000w_image_converter_write_bw_pnm(unsigned char* data,
 
 	int currwidth = 0;
 	int currheight = 0;
-	unsigned char bit = 0;
 	for (int i = 0; i < size; i++) {
 		data[i] = _kds_s2000w_image_converter_mirror_bits(data[i]);
 
-		for (int j = 0; j < BYTE_BITS; j++) {
-			bit = data[i] & 1;
-			if (bit == 0)
-				pixels[currheight][currwidth].b = PNM_MAXMAXVAL;
-
-			data[i] >>= 1;
-			currwidth++;
-		}
+		_kds_s2000w_image_converter_set_pixels(data[i], &pixels[currheight][currwidth]);
+		currwidth += BYTE_BITS;
 
 		if (currwidth >= bit_witdth) {
 			currwidth = 0;