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authorJörg Frings-Fürst <debian@jff-webhosting.net>2020-02-02 17:13:01 +0100
committerJörg Frings-Fürst <debian@jff-webhosting.net>2020-02-02 17:13:01 +0100
commitffa8801644a7d53cc1c785e3450f794c07a14eb0 (patch)
tree8d72a18a9a08b9151d12badcb1c78ce06a059f62 /backend/genesys/register_cache.h
parent1687222e1b9e74c89cafbb5910e72d8ec7bfd40f (diff)
New upstream version 1.0.29upstream/1.0.29
Diffstat (limited to 'backend/genesys/register_cache.h')
-rw-r--r--backend/genesys/register_cache.h92
1 files changed, 92 insertions, 0 deletions
diff --git a/backend/genesys/register_cache.h b/backend/genesys/register_cache.h
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+/* sane - Scanner Access Now Easy.
+
+ Copyright (C) 2019 Povilas Kanapickas <povilas@radix.lt>
+
+ This file is part of the SANE package.
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ MA 02111-1307, USA.
+
+ As a special exception, the authors of SANE give permission for
+ additional uses of the libraries contained in this release of SANE.
+
+ The exception is that, if you link a SANE library with other files
+ to produce an executable, this does not by itself cause the
+ resulting executable to be covered by the GNU General Public
+ License. Your use of that executable is in no way restricted on
+ account of linking the SANE library code into it.
+
+ This exception does not, however, invalidate any other reasons why
+ the executable file might be covered by the GNU General Public
+ License.
+
+ If you submit changes to SANE to the maintainers to be included in
+ a subsequent release, you agree by submitting the changes that
+ those changes may be distributed with this exception intact.
+
+ If you write modifications of your own for SANE, it is your choice
+ whether to permit this exception to apply to your modifications.
+ If you do not wish that, delete this exception notice.
+*/
+
+#ifndef BACKEND_GENESYS_REGISTER_CACHE_H
+#define BACKEND_GENESYS_REGISTER_CACHE_H
+
+#include "register.h"
+
+namespace genesys {
+
+template<class Value>
+class RegisterCache
+{
+public:
+ void update(std::uint16_t address, Value value)
+ {
+ if (regs_.has_reg(address)) {
+ regs_.set(address, value);
+ } else {
+ regs_.init_reg(address, value);
+ }
+ }
+
+ void update(const Genesys_Register_Set& regs)
+ {
+ for (const auto& reg : regs) {
+ update(reg.address, reg.value);
+ }
+ }
+
+ Value get(std::uint16_t address) const
+ {
+ return regs_.get(address);
+ }
+
+private:
+ RegisterContainer<Value> regs_;
+
+ template<class V>
+ friend std::ostream& operator<<(std::ostream& out, const RegisterCache<V>& cache);
+};
+
+template<class Value>
+std::ostream& operator<<(std::ostream& out, const RegisterCache<Value>& cache)
+{
+ out << cache.regs_;
+ return out;
+}
+
+} // namespace genesys
+
+#endif // BACKEND_GENESYS_LINE_BUFFER_H