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Changelog

embedded-graphics-simulator is an SDL-based simulator for testing, debugging and developing embedded-graphics applications.

Unreleased - ReleaseDate

Added

  • (breaking) #71 Added support for non-square pixels.

Changed

  • #72 set_max_fps now accepts 0 to disable the FPS limiter.

Fixed

  • #71 Fixed pixel spacing for unscaled outputs.

0.8.0 - 2025-10-10

Added

  • #63 Added support for custom binary color themes (BinaryColorTheme::Custom).
  • #62 Added an SDL based audio example (sdl-audio.rs).
  • #66 Added MultiWindow to show multiple displays in one window.
  • #66 Added SimulatorDisplay::output_size.

Changed

  • (breaking) #65 Bump Minimum Supported Rust Version (MSRV) to latest stable.
  • (breaking) #66 OutputSettings::max_fps has been removed, use Window::set_max_fps or MultiWindow::set_max_fps instead.
  • (breaking) #66 Renamed OutputImage::update to OutputImage::draw_display and added position parameter.
  • #66 Changed Window::events to take &self instead of &mut self.
  • (breaking) #69 Bump sdl2 crate dependency to 0.38.0.

0.7.0 - 2024-09-10

  • (breaking) #55 Bump the following crate dependencies: image to 0.25.1, base64 to 0.22.1, sdl2 to 0.37.0

0.6.0 - 2023-11-26

Changed

  • (breaking) #49 Bump Minimum Supported Rust Version (MSRV) to 1.71.1.
  • (breaking) #52 Bump image crate dependency to 0.24.7.

0.5.0 - 2023-05-14

Changed

  • (breaking) #46 Bump minimum embedded-graphics version from 0.7.1 to 0.8.

0.4.1 - 2023-03-06

Added

  • #45 Added OutputSettingsBuilder::max_fps to set the maximum FPS of the simulator.

Changed

  • #45 Limit simulator to 60FPS by default.

0.4.0 - 2022-09-19

Changed

  • #34 Bump minimum embedded-graphics version from 0.7.0 to 0.7.1.
  • (breaking) #44 Bump Minimum Supported Rust Version (MSRV) to 1.61.

0.3.0 - 2021-06-05

0.3.0-beta.3 - 2021-06-04

Added

  • #28 Added SimulatorDisplay::to_{be,le,ne}_bytes to convert the display content to raw image data.
  • #29 Added SimulatorDisplay::load_png.
  • #29 Added support for EG_SIMULATOR_CHECK, EG_SIMULATOR_CHECK_RAW and EG_SIMULATOR_DUMP_RAW environment variables.
  • #29 A limited version of Window can now be used without the with-sdl feature enabled. Event handling isn't available if SDL support is disabled.
  • #30 Added SimulatorDisplay::diff.

Changed

  • (breaking) #29 Color types used in Window::updateand Window::show_static must now implement From<Rgb888>.

Fixed

  • #28 Fixed panic for zero sized SimulatorDisplays.

0.3.0-beta.2 - 2021-05-04

Added

  • #25 Added OutputImage to export PNG files and base64 encoded PNGs.
  • #25 Added BinaryColorTheme::Inverted.

Changed

  • (breaking) #25 Removed SimulatorDisplay::to_image_buffer. Use to_rgb_output_image or to_grayscale_output_image instead.

0.3.0-beta.1 - 2021-04-24

Changed

  • #24 Upgrade to embedded-graphics 0.7.0-beta.1.

0.3.0-alpha.2 - 2021-02-05

Added

  • #16 Re-export sdl2 types.

0.3.0-alpha.1 - 2021-01-07

0.2.1 - 2020-07-29

Note: PR numbers from this point onwards are from the old embedded-graphics/embedded-graphics repository. New PR numbers above this note refer to PRs in the embedded-graphics/simulator repository.

Added

  • #298 Added the with-sdl option (enabled by default) to allow optionally disabling SDL2 support.
  • #271 Add MouseMove event support to simulator.

0.2.0 - 2020-03-20

Added

  • (breaking) #266 Added image support and PNG export. See the README.md for information about how to use these features. The API for creating windows was changed to make the output settings independent of the Window type. The pixel scaling and theme settings were moved to a new OutputSettings struct, that can be built using the OutputSettingsBuilder. WindowBuilder was removed and replaced by a Window::new(title, &output_settings) function.

0.2.0-beta.2 - 2020-02-17

Added

  • #183 Added limited mouse and keyboard event handling to the simulator in order to simulate input devices such as touch screens, buttons, or rotary encoders.
  • #171 Added a more complex analog-clock example to the simulator - check it out for some more in-depth usage of Embedded Graphics.

Fixed

  • #192 Performance of drawing in the simulator is increased.
  • #218 Test README examples in CI and update them to work with latest crate versions.

Changed

  • (breaking) The simulator API changed.
  • #203 updated simulator screenshots and added them to README

0.2.0-alpha.1

Fixed

  • The TGA example in the simulator now draws the image correctly

0.1.0

Changed

  • The simulator is now available on crates.io as a standalone crate. You can now create simulated displays for testing out embedded_graphics code or showing off cool examples.
  • The builtin simulator now supports colour pixel types, like RGB565.