graphics

Feb 3, 2018

Changes in this version

+ func ResetGLState() error

+ type Filter int

+ const FilterLinear

+ const FilterNearest

+ const FilterNone

Jun 9, 2017

Changes in this version

+ const MaxImageSize

+ func CopyImage(origImg image.Image) *image.RGBA

+ func FlushCommands() error

+ func QuadVertexSizeInBytes() int

+ func Reset() error

+ type Image struct

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

+ func NewImageFromImage(img *image.RGBA, width, height int, filter opengl.Filter) *Image

+ func NewScreenFramebufferImage(width, height int) *Image

+ func (i *Image) Dispose()

+ func (i *Image) DrawImage(src *Image, vertices []float32, clr *affine.ColorM, mode opengl.CompositeMode)

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

+ func (i *Image) IsInvalidated() bool

+ func (i *Image) Pixels() ([]uint8, error)

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

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

May 14, 2016

Changes in this version

+ const MaxQuads

+ func NextPowerOf2Int32(x int32) int32

type Framebuffer

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

Feb 28, 2016

Changes in this version

+ func NextPowerOf2Int(x int) int

+ type Lines interface

+ Color func(i int) color.Color

+ Len func() int

+ Points func(i int) (x0, y0, x1, y1 int)

+ type Rects interface

+ Color func(i int) color.Color

+ Len func() int

+ Rect func(i int) (x, y, width, height int)

type Texture

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

type TextureQuads

+ SetVertices func(vertices []int16) int

Jan 25, 2015

Changes in this version

+ type Framebuffer struct

+ 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, quads TextureQuads, geo, clr Matrix) error

+ func (f *Framebuffer) Fill(c *opengl.Context, r, g, b, a float64) error

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

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

+ type Matrix interface

+ Element func(i, j int) float64

+ type Texture struct

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

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

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

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

+ type TextureQuads interface

+ Len func() int

+ Texture func(i int) (u0, v0, u1, v1 float32)

+ Vertex func(i int) (x0, y0, x1, y1 float32)