graphics

Documentation

Index

• Constants
• func NextPowerOf2Int32(x int32) int32
• type Framebuffer
  • func NewFramebufferFromTexture(c *opengl.Context, texture *Texture) (*Framebuffer, error)
  • func NewZeroFramebuffer(c *opengl.Context, width, height int) (*Framebuffer, error)
  • func (f *Framebuffer) Dispose(c *opengl.Context)
  • func (f *Framebuffer) DrawTexture(c *opengl.Context, t *Texture, vertices []int16, geo, clr Matrix, ...) error
  • func (f *Framebuffer) Fill(c *opengl.Context, clr color.Color) error
  • func (f *Framebuffer) Pixels(c *opengl.Context) ([]uint8, error)
  • func (f *Framebuffer) ReplacePixels(c *opengl.Context, t *Texture, p []uint8) error
  • func (f *Framebuffer) Size() (width, height int)
• type Matrix
• type Texture
  • func NewTexture(c *opengl.Context, width, height int, filter opengl.Filter) (*Texture, error)
  • func NewTextureFromImage(c *opengl.Context, img image.Image, filter opengl.Filter) (*Texture, error)
  • func (t *Texture) Dispose(c *opengl.Context)
  • func (t *Texture) Size() (width, height int)

Constants

const MaxQuads = indicesNum / 6

Functions

func NextPowerOf2Int32

func NextPowerOf2Int32(x int32) int32

Types

type Framebuffer

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

func NewFramebufferFromTexture

func NewFramebufferFromTexture(c *opengl.Context, texture *Texture) (*Framebuffer, error)

func NewZeroFramebuffer

func NewZeroFramebuffer(c *opengl.Context, width, height int) (*Framebuffer, error)

func (*Framebuffer) Dispose

func (f *Framebuffer) Dispose(c *opengl.Context)

func (*Framebuffer) DrawTexture

func (f *Framebuffer) DrawTexture(c *opengl.Context, t *Texture, vertices []int16, geo, clr Matrix, mode opengl.CompositeMode) error

func (*Framebuffer) Fill

func (f *Framebuffer) Fill(c *opengl.Context, clr color.Color) error

func (*Framebuffer) Pixels

func (f *Framebuffer) Pixels(c *opengl.Context) ([]uint8, error)

func (*Framebuffer) ReplacePixels

func (f *Framebuffer) ReplacePixels(c *opengl.Context, t *Texture, p []uint8) error

func (*Framebuffer) Size

func (f *Framebuffer) Size() (width, height int)

type Matrix

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

type Texture

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

func NewTexture

func NewTexture(c *opengl.Context, width, height int, filter opengl.Filter) (*Texture, error)

func NewTextureFromImage

func NewTextureFromImage(c *opengl.Context, img image.Image, filter opengl.Filter) (*Texture, error)

func (*Texture) Dispose

func (t *Texture) Dispose(c *opengl.Context)

func (*Texture) Size

func (t *Texture) Size() (width, height int)