From: Bastian Dehn <hhaalo@arcor.de>
Date: Thu, 30 Jan 2025 20:32:13 +0000 (+0100)
Subject: change bit with bw convert
X-Git-Tag: v1.0.29^2~3^2~11
X-Git-Url: https://gitweb.hhaalo.de/?a=commitdiff_plain;h=91ca2ee93145a0611283b4d63bfb8772c567a592;p=sane-kds-s2000w-net.git

change bit with bw convert
---

diff --git a/src/kds_s2000w_image_converter_netpbm.c b/src/kds_s2000w_image_converter_netpbm.c
index e362195..a6112ca 100644
--- a/src/kds_s2000w_image_converter_netpbm.c
+++ b/src/kds_s2000w_image_converter_netpbm.c
@@ -10,6 +10,7 @@
 #define SPACE 0x0a
 #define SPACE_WIDTH_HEIGHT 0x20
 #define MAXBUFFER 6
+#define BYTE_BITS 8
 
 enum imgformat {
 	BW = 0,
@@ -141,22 +142,28 @@ void _kds_s2000w_image_converter_write_bw_pnm(unsigned char* data,
 {
 	kds_s2000w_debug_printf(ALL, "kds_s2000w_image_converter_write_bw_pnm");
 
+	int bit_witdth = width * BYTE_BITS;
 	xel** pixels = malloc(sizeof(xel*) * height);
 	for (int i = 0; i < height; i++) {
-		pixels[i] = malloc(sizeof(xel) * width);
+		pixels[i] = malloc(sizeof(xel) * bit_witdth);
 	}
 
 	int currwidth = 0;
 	int currheight = 0;
+	int bit = 0;
 	for (int i = 0; i < size; i++) {
-		pixels[currheight][currwidth].r = 0;
-		pixels[currheight][currwidth].g = 0;
-		pixels[currheight][currwidth].b = 0;
-		if (data[i] < 1)
-			pixels[currheight][currwidth].b = PGM_MAXMAXVAL;
+		for (int j = 0; j < 8; j++) {
+			bit = (1 >> data[i]) & 1;
+			pixels[currheight][currwidth].r = 0;
+			pixels[currheight][currwidth].g = 0;
+			pixels[currheight][currwidth].b = 0;
+			if (bit > 0)
+				pixels[currheight][currwidth].b = PGM_MAXMAXVAL;
 
-		currwidth++;
-		if (currwidth >= width) {
+			currwidth++;
+		}
+
+		if (currwidth >= bit_witdth) {
 			currwidth = 0;
 			currheight++;
 		}
@@ -331,6 +338,7 @@ void kds_s2000w_image_converter_tiff_to_pnm(blobdata* in, blobdata* out)
 
 	size_t decompress_size = width * height;
 	unsigned char* decompress_data = malloc(sizeof(unsigned char) * decompress_size);
+	memset(decompress_data, 0, decompress_size);
 
 	unsigned char* row = NULL;
 	for (int i = 0; i < height; i++) {