opengl

Documentation

Index

• Variables
• func NewGraphics() (graphicsdriver.Graphics, error)
• type Graphics
  • func (g *Graphics) Begin() error
  • func (g *Graphics) DrawTriangles(dstID graphicsdriver.ImageID, ...) error
  • func (g *Graphics) End(present bool) error
  • func (g *Graphics) FramebufferYDirection() graphicsdriver.YDirection
  • func (g *Graphics) Initialize() error
  • func (g *Graphics) IsDirectX() bool
  • func (g *Graphics) IsGL() bool
  • func (g *Graphics) MaxImageSize() int
  • func (g *Graphics) NeedsClearingScreen() bool
  • func (g *Graphics) NeedsRestoring() bool
  • func (g *Graphics) NewImage(width, height int) (graphicsdriver.Image, error)
  • func (g *Graphics) NewScreenFramebufferImage(width, height int) (graphicsdriver.Image, error)
  • func (g *Graphics) NewShader(program *shaderir.Program) (graphicsdriver.Shader, error)
  • func (g *Graphics) Reset() error
  • func (g *Graphics) SetFullscreen(fullscreen bool)
  • func (g *Graphics) SetTransparent(transparent bool)
  • func (g *Graphics) SetVertices(vertices []float32, indices []uint16) error
  • func (g *Graphics) SetVsyncEnabled(enabled bool)
• type Image
  • func (i *Image) Dispose()
  • func (i *Image) ID() graphicsdriver.ImageID
  • func (i *Image) IsInvalidated() bool
  • func (i *Image) ReadPixels(buf []byte) error
  • func (i *Image) WritePixels(args []*graphicsdriver.WritePixelsArgs) error
• type Shader
  • func (s *Shader) Dispose()
  • func (s *Shader) ID() graphicsdriver.ShaderID

Variables

var InvalidTexture textureNative

Functions

func NewGraphics

func NewGraphics() (graphicsdriver.Graphics, error)

NewGraphics creates an implementation of graphicsdriver.Graphics for OpenGL. The returned graphics value is nil iff the error is not nil.

Types

type Graphics

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

func (*Graphics) Begin

func (g *Graphics) Begin() error

func (*Graphics) DrawTriangles

func (g *Graphics) DrawTriangles(dstID graphicsdriver.ImageID, srcIDs [graphics.ShaderImageCount]graphicsdriver.ImageID, offsets [graphics.ShaderImageCount - 1][2]float32, shaderID graphicsdriver.ShaderID, indexLen int, indexOffset int, mode graphicsdriver.CompositeMode, colorM graphicsdriver.ColorM, filter graphicsdriver.Filter, address graphicsdriver.Address, dstRegion, srcRegion graphicsdriver.Region, uniforms [][]float32, evenOdd bool) error

func (*Graphics) End

func (g *Graphics) End(present bool) error

func (*Graphics) FramebufferYDirection

func (g *Graphics) FramebufferYDirection() graphicsdriver.YDirection

func (*Graphics) Initialize

func (g *Graphics) Initialize() error

func (*Graphics) IsDirectX

func (g *Graphics) IsDirectX() bool

func (*Graphics) IsGL

func (g *Graphics) IsGL() bool

func (*Graphics) MaxImageSize

func (g *Graphics) MaxImageSize() int

func (*Graphics) NeedsClearingScreen

func (g *Graphics) NeedsClearingScreen() bool

func (*Graphics) NeedsRestoring

func (g *Graphics) NeedsRestoring() bool

func (*Graphics) NewImage

func (g *Graphics) NewImage(width, height int) (graphicsdriver.Image, error)

func (*Graphics) NewScreenFramebufferImage

func (g *Graphics) NewScreenFramebufferImage(width, height int) (graphicsdriver.Image, error)

func (*Graphics) NewShader

func (g *Graphics) NewShader(program *shaderir.Program) (graphicsdriver.Shader, error)

func (*Graphics) Reset

func (g *Graphics) Reset() error

Reset resets or initializes the current OpenGL state.

func (*Graphics) SetFullscreen

func (g *Graphics) SetFullscreen(fullscreen bool)

func (*Graphics) SetTransparent

func (g *Graphics) SetTransparent(transparent bool)

func (*Graphics) SetVertices

func (g *Graphics) SetVertices(vertices []float32, indices []uint16) error

func (*Graphics) SetVsyncEnabled

func (g *Graphics) SetVsyncEnabled(enabled bool)

type Image

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

func (*Image) Dispose

func (i *Image) Dispose()

func (*Image) ID

func (i *Image) ID() graphicsdriver.ImageID

func (*Image) IsInvalidated

func (i *Image) IsInvalidated() bool

func (*Image) ReadPixels

func (i *Image) ReadPixels(buf []byte) error

func (*Image) WritePixels

func (i *Image) WritePixels(args []*graphicsdriver.WritePixelsArgs) error

type Shader

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

func (*Shader) Dispose

func (s *Shader) Dispose()

func (*Shader) ID

func (s *Shader) ID() graphicsdriver.ShaderID