Files
MuditaOS/module-services/service-eink/messages/ImageMessage.cpp
Adam Wulkiewicz 49bbaf51a0 [MOS-550] Improve refresh of the display
1. Implement partial refresh.
2. Implement refresh canceling mechanism.
3. Refactor some parts of the gui and display code.

ad 1.
- Detect parts of the screen changed since last update and merge them
  into bigger regions. These regions defines parts of the context sent
  to the display.
- Refresh the region covering all of the parts since this is the most
  time consuming part and the size of the refreshed region doesn't
  change the time much.
- Refresh the whole screen if deep refresh is requested and previously
  fast refresh was used. This is needed to prevent unwanted artifacts
  in some cases.

ad 2.
- Separate display update and refresh logic.
- Divide image display message handling into two handlers, one updating
  and other one refreshing the screen.
- Add cancel refresh message and use it to cancel refresh during update.
- Store sum of refresh regions gathered during updates to refresh them
  all at once at the end.
2022-10-11 20:00:33 +02:00

61 lines
1.8 KiB
C++

// Copyright (c) 2017-2022, Mudita Sp. z.o.o. All rights reserved.
// For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md
#include "EinkMessage.hpp"
#include "ImageMessage.hpp"
namespace service::eink
{
ImageMessage::ImageMessage(int contextId, ::gui::Context *context, ::gui::RefreshModes refreshMode)
: contextId{contextId}, context{context}, refreshMode{refreshMode}
{}
auto ImageMessage::getContext() noexcept -> ::gui::Context *
{
return context;
}
auto ImageMessage::getRefreshMode() const noexcept -> ::gui::RefreshModes
{
return refreshMode;
}
auto ImageMessage::getContextId() const noexcept -> int
{
return contextId;
}
ImageDisplayedNotification::ImageDisplayedNotification(int contextId) : contextId{contextId}
{}
auto ImageDisplayedNotification::getContextId() const noexcept -> int
{
return contextId;
}
RefreshMessage::RefreshMessage(int contextId,
hal::eink::EinkFrame refreshFrame,
hal::eink::EinkRefreshMode refreshMode,
const std::string &originalSender)
: contextId(contextId), refreshFrame(refreshFrame), refreshMode(refreshMode), originalSender(originalSender)
{}
auto RefreshMessage::getContextId() const noexcept -> int
{
return contextId;
}
auto RefreshMessage::getRefreshFrame() noexcept -> hal::eink::EinkFrame
{
return refreshFrame;
}
auto RefreshMessage::getRefreshMode() const noexcept -> hal::eink::EinkRefreshMode
{
return refreshMode;
}
auto RefreshMessage::getOriginalSender() const noexcept -> const std::string &
{
return originalSender;
}
} // namespace service::eink