opengl

Documentation

Index

• 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) 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) SetGLFWClientAPI()
  • 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, region image.Rectangle) error
  • func (i *Image) WritePixels(args []*graphicsdriver.WritePixelsArgs) error
• type Shader
  • func (s *Shader) Dispose()
  • func (s *Shader) ID() graphicsdriver.ShaderID

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, shaderID graphicsdriver.ShaderID, dstRegions []graphicsdriver.DstRegion, indexOffset int, blend graphicsdriver.Blend, uniforms []uint32, evenOdd bool) error

func (*Graphics) End

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

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) SetGLFWClientAPI

func (g *Graphics) SetGLFWClientAPI()

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, region image.Rectangle) 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