graphics

Documentation

Index

• func FlushCommands(context *opengl.Context) error
• func NextPowerOf2Int32(x int32) int32
• func Reset(context *opengl.Context) error
• type Image
  • func NewImage(width, height int, filter opengl.Filter) (*Image, error)
  • func NewImageFromImage(img *image.RGBA, filter opengl.Filter) (*Image, error)
  • func NewScreenFramebufferImage(width, height int) (*Image, error)
  • func (i *Image) Dispose() error
  • func (i *Image) DrawImage(src *Image, vertices []int16, geo, clr Matrix, mode opengl.CompositeMode) error
  • func (i *Image) Fill(clr color.RGBA) error
  • func (i *Image) IsInvalidated(context *opengl.Context) bool
  • func (i *Image) Pixels(context *opengl.Context) ([]uint8, error)
  • func (i *Image) ReplacePixels(p []uint8) error
  • func (i *Image) Size() (int, int)
• type Matrix

Functions

func FlushCommands

func FlushCommands(context *opengl.Context) error

func NextPowerOf2Int32

func NextPowerOf2Int32(x int32) int32

func Reset

func Reset(context *opengl.Context) error

Types

type Image

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

func NewImage

func NewImage(width, height int, filter opengl.Filter) (*Image, error)

func NewImageFromImage

func NewImageFromImage(img *image.RGBA, filter opengl.Filter) (*Image, error)

func NewScreenFramebufferImage

func NewScreenFramebufferImage(width, height int) (*Image, error)

func (*Image) Dispose

func (i *Image) Dispose() error

func (*Image) DrawImage

func (i *Image) DrawImage(src *Image, vertices []int16, geo, clr Matrix, mode opengl.CompositeMode) error

func (*Image) Fill

func (i *Image) Fill(clr color.RGBA) error

func (*Image) IsInvalidated

func (i *Image) IsInvalidated(context *opengl.Context) bool

func (*Image) Pixels

func (i *Image) Pixels(context *opengl.Context) ([]uint8, error)

func (*Image) ReplacePixels

func (i *Image) ReplacePixels(p []uint8) error

func (*Image) Size

func (i *Image) Size() (int, int)

type Matrix

type Matrix interface {
	Element(i, j int) float64
}