GFX_

Supported QNX graphic drivers.

Description

Drivers GFX_*/QNX
QNX Allegro supports the following card parameters for the set_gfx_mode() function:
  • GFX_TEXT
    This closes any graphics mode previously opened with set_gfx_mode.
  • GFX_AUTODETECT
    Let Allegro pick an appropriate graphics driver.
  • GFX_AUTODETECT_FULLSCREEN
    Autodetects a graphics driver, but will only use fullscreen drivers, failing if these are not available on current platform.
  • GFX_AUTODETECT_WINDOWED
    Same as above, but uses only windowed drivers.
  • GFX_SAFE
    Special driver for when you want to reliably set a graphics mode and don't really care what resolution. See the set_gfx_mode() documentation for details.
  • GFX_PHOTON
    Alias for GFX_PHOTON_ACCEL.
  • GFX_PHOTON_ACCEL
    Fullscreen exclusive mode through Photon, running with hardware acceleration enabled.
  • GFX_PHOTON_SOFT
    Fullscreen exclusive mode that only uses software drawing, rather than any hardware accelerated features.
  • GFX_PHOTON_SAFE
    Simplified fullscreen exclusive driver that doesn't support any hardware acceleration, video or system bitmaps, etc.
  • GFX_PHOTON_WIN
    The regular windowed Photon driver, running in color conversion mode when the color depth doesn't match that of the Photon desktop. Color conversion is much slower than direct drawing. Note that, mainly for performance reasons, this driver requires the width of the screen to be a multiple of 4.
See Also: