Screen includes some utilities and binaries to help with calibration, debugging,
and demonstrating features.
Before you can run these utilities and binaries, you need to ensure that the shared objects that they depend
on are included in your system image. See the
“
Shared libraries”
section of the Building Embedded Systems guide for more information
on how to determine which shared objects you need.
Screen utilities
The
Screen utilities are as
follows:
- drm-intel
-
Start the DRM Server
- drm-probe-displays
-
Detect ports and pipelines for Intel graphics hardware
- drm-vmwgfx
-
Start the DRM Server for graphics hardware to support virtual target environments in VMware
- egl-configs
-
Query and display the number of all supported framebuffer configurations for the specified display
- gltracelogger
- Record all OpenGL calls made by the target application
- gltraceprinter
- A readable print of the trace file generated from gltracelogger.
- screen
- Start Screen services
- screencmd
- Change properties of Screen objects
- screen-gles2-tools
- Generate shader binaries
- screeninfo
- Decode the contents of binary files in /dev/screen for debugging
- screenshot
- Take a screenshot of a specified size of the display and saves the output file in BMP format
- vncserv
- Remote framebuffer VNC server
Screen binaries
These binaries are applications that demonstrate various
Screen functionality:
- events
- Create a window manager connection to Screen and dump the events received as output to the console.
- gles1-vsync
- Display hardware-rendered content using OpenGL ES 1.x
- gles1-gears
- Display hardware-rendered content using OpenGL ES 1.x
- gles2-gears
- Display hardware-rendered content using OpenGL ES 2.x
- gles2-maze
- Demonstrate how to use texture as well as vertex and fragment shaders;
hardware-rendered content using OpenGL ES 2.x
- gles2-teapot
- Demonstrate 3D rendering using OpenGL ES 2.x
- gles3-gears
- Display hardware-rendered content using OpenGL ES 3.x
- sharewin
- Demonstrate content sharing
- sw-vsync
- Display software-rasterized content
- vcapture-demo
- Demonstrate camera and video content
- win-vsync
- Display software-rasterized content using multiple windows in a hierarchy
Touch utilities
These binaries are applications that are used for touch devices:
- calib-touch
- Calibrate a touchscreen
- mtouch
- Service that handles touch events
Vulkan utilities and binaries
These utilities and binaries are specific to Vulkan:
- vulkaninfo
- Display various Vulkan information
- vkcube
- Demonstrate 3D rendering capabilities using Vulkan
- vk-fsray
- Display fragment shader based ray tracer rendered content using Vulkan
- vk-gears
- Display hardware-rendered content using Vulkan
- vk-maze
- Demonstrate how to use texture, as well as vertex and fragment shaders
- vk-teapot
- Demonstrate 3D rendering capabilities using Vulkan