Selene DRMCairo plug-in

• Index

Contents

• Methods

Classes

• SelDCCard
• SelDCFont
• SelDCPattern
• SelDCSurface
• SelDCSurfaceImages

Examples

• Circle.sel
• DrawCollection.sel
• Gfx.sel
• Images.sel
• Lines.sel
• PatternLinear.sel
• PatternRadial.sel
• PatternSurface.sel
• Rectangle.sel
• SubSurface.sel
• Surface.sel
• Test.sel
• Text.sel

Class SelDCCard

Direct Rendering Manager card management.

Methods

SelDCCard:GetPrimarySurface ()	Returns the surface corresponding to the physical display.
SelDCCard:CountAvailableModes ()	Return the number of mode available
SelDCCard:GetSize (mode_index)	Return the size of the current connector as well as refresh frequency.
SelDCCard:Release ()	Release a card and free all resources
SelDCCard:Open (card)	Initialise a card
SelDCCard:OpenFB (card_path, vertical_size)	Initialise a card with framebuffer workaround.

Methods

SelDCCard:GetPrimarySurface ()

Returns the surface corresponding to the physical display.

CAUTION : Drawing to this surface is directly reflected on the screen

Returns:

SelDCSurface surface

SelDCCard:CountAvailableModes ()

Return the number of mode available

Returns:

integer number of available modes

SelDCCard:GetSize (mode_index)

Return the size of the current connector as well as refresh frequency.

Parameters:

• mode_index integer If omitted, return the active one

Returns:

1. integer width
2. integer height
3. integer frequency

SelDCCard:Release ()

Release a card and free all resources

SelDCCard:Open (card)

Initialise a card

Parameters:

• card string path (if not set /dev/dri/card0)

Returns:

SelDCCard card

Raises:

Fails if KMS is missing (Debian :( :( )

SelDCCard:OpenFB (card_path, vertical_size)

Initialise a card with framebuffer workaround.

Useful if KMS is missing. But need to be compiled with DRMC_WITH_FB set.

Parameters:

• card_path string if not set, default to /dev/fb0
• vertical_size integer (optional, force vertical size, otherwise use its physical one

Returns:

SelDCCard card

Usage:

card,err,msg = SelDCCard.Open()
if not card then
    print("*E* DRM :", err,msg)
    if SELPLUG_DRMCairo_FBEXTENSION then
        local fb_fch = "/dev/fb1"
        if not file_exists(fb_fch) then
            fb_fch = "/dev/fb0"
        end
        card,err,msg = SelDCCard.OpenFB(fb_fch)
        if not card then
            print("*E* ".. fb_fch .." :", err,msg)
            os.exit()
        else
            print("*I* ok with Framebuffer")
        end
    else
        os.exit()
    end
end