gfx

package

v0.1.0 Latest Latest Go to latest Published: Jun 10, 2018 License: MIT Imports: 8 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/lhz/breadbox

Links

Open Source Insights

Documentation ¶

Index ¶

Constants
Variables
func Matching(colors []color.Color) []color.Color
type Image
type Koala
- func KoalaImage(filename string, bgColor byte) *Koala
- func (koala *Koala) Bytes(align bool) []byte

Constants ¶

View Source

const (
	Black = iota
	White
	Red
	Cyan
	Purple
	Green
	Blue
	Yellow
	Orange
	Brown
	LightRed
	DarkGrey
	MediumGrey
	LightGreen
	LightBlue
	LightGrey
)

Color index names

Variables ¶

View Source

var (
	Colodore = palette("000000:ffffff:813338:75cec8:8e3c97:56ac4d:2e2c9b:edf171:8e5029:553800:c46c71:4a4a4a:7b7b7b:a9ff9f:706deb:b2b2b2")
	Pepto    = palette("000000:ffffff:68372b:70a4b2:6f3d86:588d43:352879:b8c76f:6f4f25:433900:9a6759:444444:6c6c6c:9ad284:6c5eb5:959595")
	Levy     = palette("040204:fcfefc:cc3634:84f2dc:cc5ac4:5cce34:4436cc:f4ee5c:d47e34:945e34:fc9a94:5c5a5c:8c8e8c:9cfe9c:74a2ec:c4c2c4")
	Vice     = palette("000000:fdfefc:be1a24:30e6c6:b41ae2:1fd21e:211bae:dff60a:b84104:6a3304:fe4a57:424540:70746f:59fe59:5f53fe:a4a7a2")
	ViceOld  = palette("000000:d5d5d5:72352c:659fa6:733a91:568d35:2e237d:aeb75e:774f1e:4b3c00:9c635a:474747:6b6b6b:8fc271:675db6:8f8f8f")
	ViceNew  = palette("000000:ffffff:b85438:8decff:ba56e4:79d949:553ee5:fbff79:bd7c1b:7e6400:f29580:6f716e:a2a4a1:cdff9d:a18aff:d3d5d2")
)

Palettes each consisting of an array of 16 Color values

Functions ¶

func Matching ¶

func Matching(colors []color.Color) []color.Color

Types ¶

type Image ¶

type Image struct {
	BgColor byte
	// contains filtered or unexported fields
}

Image represents a complete picture converted from a PNG image

func HiresImage ¶

func HiresImage(filename string, bgColor byte) *Image

HiresImage reads an image from a PNG file and returns a Image pointer

func MulticolorImage ¶

func MulticolorImage(filename string, bgColor byte) *Image

MulticolorImage reads an image from a PNG file and returns a Image pointer

func NewImage ¶

func NewImage(filename string, mcol bool, bgColor byte) *Image

NewImage reads an image from a PNG file and returns a Image pointer

func (*Image) HiresByte ¶

func (image *Image) HiresByte(x, y, c int) byte

func (*Image) Koala ¶

func (image *Image) Koala(xoffset, yoffset int) *Koala

Koala extracts a full-screen 160x200 multicolor image in Koala format

func (*Image) MulticolorCell ¶

func (image *Image) MulticolorCell(xoffset, yoffset int) ([]byte, error)

MulticolorCell extracts a 4x8 pixels multicolor cell as a 10-byte array, the first 8 bytes are bitmap data, followed by a screen byte and a colmap byte

func (*Image) MulticolorSprite ¶

func (image *Image) MulticolorSprite(xoffset, yoffset int, colors []byte) []byte

MulticolorSprite extracts a multicolor sprite as a 64-byte array

func (*Image) PixelAt ¶

func (image *Image) PixelAt(x, y int) byte

func (*Image) Pixels ¶

func (image *Image) Pixels(xoffset, yoffset, width, height int) [][]byte

Pixels return an array of multicolor pixels (color indices) from the given area in the Image

type Koala ¶

type Koala struct {
	Bitmap  []byte
	Screen  []byte
	Colmap  []byte
	BgColor byte
}

Koala represents a full-screen image in KoalaPainter format

func KoalaImage ¶

func KoalaImage(filename string, bgColor byte) *Koala

KoalaImage reads an image from a PNG file and returns a Koala pointer

func (*Koala) Bytes ¶

func (koala *Koala) Bytes(align bool) []byte

Bytes returns Koala format as raw bytes. If align is false, there will be no padding between data segments. If align is true, screen and color map data will be aligned to 1024 bytes offsets.

Source Files ¶

View all Source files

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL