From: Bastian Dehn <hhaalo@arcor.de>
Date: Wed, 14 Feb 2024 15:59:10 +0000 (+0100)
Subject: add init gamma table
X-Git-Tag: v1.0.0^2~287
X-Git-Url: https://gitweb.hhaalo.de/?a=commitdiff_plain;h=71de7bbb45933c93f1c10fffec62716511801402;p=sane-kds-s2000w-net.git

add init gamma table
---

diff --git a/src/kds_s2000w_handler.c b/src/kds_s2000w_handler.c
index 9bb3869..5e40be2 100644
--- a/src/kds_s2000w_handler.c
+++ b/src/kds_s2000w_handler.c
@@ -163,6 +163,7 @@ void _get_current_scan_status()
 
 current_state* kds_s2000w_handler_open()
 {
+	init_gamma_table();
 	image.size = 0;
 	image.data = NULL;
 	pnm_image.size = 0;
diff --git a/src/kds_s2000w_handler_opts.c b/src/kds_s2000w_handler_opts.c
index f308ee2..2d9ae9f 100644
--- a/src/kds_s2000w_handler_opts.c
+++ b/src/kds_s2000w_handler_opts.c
@@ -8,6 +8,7 @@ extern current_state* state;
 extern response* resp;
 extern json_object* resp_config;
 extern json_object* config;
+char gamma_table[4][256];
 
 void _write_string_value(json_object* value_object, void* value)
 {
@@ -103,6 +104,16 @@ int _change_skip_blank_pages_off()
 	return 0;
 }
 
+void init_gamma_table()
+{
+	for (int i = 0; i < 256; i++) {
+		gamma_table[0][i] = i;
+		gamma_table[1][i] = i;
+		gamma_table[2][i] = i;
+		gamma_table[3][i] = i;
+	}
+}
+
 void kds_s2000w_handler_get_option(int option, void* value)
 {
 	config = json_object_object_get(resp_config, "Configuration");
diff --git a/src/kds_s2000w_handler_opts.h b/src/kds_s2000w_handler_opts.h
index f9d050c..5a116c8 100644
--- a/src/kds_s2000w_handler_opts.h
+++ b/src/kds_s2000w_handler_opts.h
@@ -1,5 +1,6 @@
 #ifndef KDS_S2000W_HANDLER_OPTS_H
 #define KDS_S2000W_HANDLER_OPTS_H
+void init_gamma_table();
 void kds_s2000w_handler_get_option(int option, void* value);
 void kds_s2000w_handler_set_option(int option, void* value, int* info);
 void kds_s2000w_handler_set_option_auto(int option);