mirror of
https://github.com/taigrr/gopher-os
synced 2025-01-18 04:43:13 -08:00
e67e2644e2
Summary of changes: - kernel/mem renamed to kernel/mm - consolidated page/frame defs into one file which now lives in the kernel/mm package and is referenced by both pmm and vmm pkgs - consolidated parts of the vmm code (e.g. PDT+PTE) - memcopy/memset helpers moved to the kernel package - physical allocators moved to the kernel/mm/pmm package - break vmm -> pmm pkg dependency by moving AllocFrame() into the mm package.
89 lines
2.5 KiB
Go
89 lines
2.5 KiB
Go
package console
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import (
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"gopheros/device/video/console/font"
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"gopheros/device/video/console/logo"
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"gopheros/kernel/cpu"
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"gopheros/kernel/mm/vmm"
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"gopheros/multiboot"
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"image/color"
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)
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var (
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mapRegionFn = vmm.MapRegion
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portWriteByteFn = cpu.PortWriteByte
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getFramebufferInfoFn = multiboot.GetFramebufferInfo
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)
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// ScrollDir defines a scroll direction.
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type ScrollDir uint8
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// The supported list of scroll directions for the console Scroll() calls.
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const (
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ScrollDirUp ScrollDir = iota
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ScrollDirDown
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)
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// Dimension defines the types of dimensions that can be queried off a device.
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type Dimension uint8
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const (
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// Characters describes the number of characters in
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// the console depending on the currently active
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// font.
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Characters Dimension = iota
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// Pixels describes the number of pixels in the console framebuffer.
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Pixels
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)
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// The Device interface is implemented by objects that can function as system
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// consoles.
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type Device interface {
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// Pixel returns the width and height of the console
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// using a particual dimension.
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Dimensions(Dimension) (uint32, uint32)
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// DefaultColors returns the default foreground and background colors
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// used by this console.
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DefaultColors() (fg, bg uint8)
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// Fill sets the contents of the specified rectangular region to the
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// requested color. Both x and y coordinates are 1-based (top-left
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// corner has coordinates 1,1).
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Fill(x, y, width, height uint32, fg, bg uint8)
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// Scroll the console contents to the specified direction. The caller
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// is responsible for updating (e.g. clear or replace) the contents of
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// the region that was scrolled.
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Scroll(dir ScrollDir, lines uint32)
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// Write a char to the specified location. Both x and y coordinates are
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// 1-based (top-left corner has coordinates 1,1).
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Write(ch byte, fg, bg uint8, x, y uint32)
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// Palette returns the active color palette for this console.
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Palette() color.Palette
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// SetPaletteColor updates the color definition for the specified
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// palette index. Passing a color index greated than the number of
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// supported colors should be a no-op.
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SetPaletteColor(uint8, color.RGBA)
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}
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// FontSetter is an interface implemented by console devices that
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// support loadable bitmap fonts.
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//
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// SetFont selects a bitmap font to be used by the console.
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type FontSetter interface {
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SetFont(*font.Font)
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}
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// LogoSetter is an interface implemented by console devices that
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// support drawing of logo images.
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//
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// SetLogo selects the logo to be drawn by the console.
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type LogoSetter interface {
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SetLogo(*logo.Image)
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}
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