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This commit is contained in:
Achilleas Anagnostopoulos 2017-07-12 08:00:38 +01:00
parent f4f3745073
commit 72feb11acb
1 changed files with 7 additions and 0 deletions
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7
src/gopheros/device/video/console/vesa_fb.go
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@ -15,6 +15,12 @@ import (
"unsafe" "unsafe"
) )
// VesaFbConsole is a driver for a console backed by a VESA linear framebuffer.
// The driver supports framebuffers with depth 8, 15, 16, 24 and 32 bpp. In
// all framebuffer configurations, the driver exposes a 256-color palette whose
// entries get mapped to the correct pixel format for the framebuffer.
//
// To provide text output, a font needs to be specified via the SetFont method.
type VesaFbConsole struct { type VesaFbConsole struct {
bpp uint32 bpp uint32
bytesPerPixel uint32 bytesPerPixel uint32
@ -45,6 +51,7 @@ type VesaFbConsole struct {
clearChar uint16 clearChar uint16
} }
// NewVesaFbConsole returns a new instance of the vesa framebuffer driver.
func NewVesaFbConsole(width, height uint32, bpp uint8, pitch uint32, colorInfo *multiboot.FramebufferRGBColorInfo, fbPhysAddr uintptr) *VesaFbConsole { func NewVesaFbConsole(width, height uint32, bpp uint8, pitch uint32, colorInfo *multiboot.FramebufferRGBColorInfo, fbPhysAddr uintptr) *VesaFbConsole {
return &VesaFbConsole{ return &VesaFbConsole{
bpp: uint32(bpp), bpp: uint32(bpp),