gl

package
v0.0.0-...-c988e08 Latest Latest
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 Go to latest Published: Mar 17, 2015 License: BSD-3-Clause Imports: 23 Imported by: 0

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Index

Constants

View Source 
const HistorySize = 100

Variables

View Source 
var COLOR_FS_SOURCE = `
  uniform vec4 Color;
  void main() {
    gl_FragColor = Color;
    gl_FragColor *= gl_FragColor.a; // PMA
  }
`
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var COLOR_VS_SOURCE = `` /* 159-byte string literal not displayed */
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var COPY_FS_SOURCE = `` /* 126-byte string literal not displayed */
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var COPY_VS_SOURCE = `` /* 230-byte string literal not displayed */
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var FONT_FS_SOURCE = `` /* 291-byte string literal not displayed */
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var FONT_VS_SOURCE = `` /* 496-byte string literal not displayed */

Functions

func CheckError 

func CheckError()

func StartDriver 

func StartDriver(dataPath string, appThread AppThread)

Types

type AppThread 

type AppThread func(driver gxui.Driver)

type Blitter 

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

func CreateBlitter 

func CreateBlitter(ctx *Context, stats *Stats) *Blitter

func (*Blitter) Blit 

func (b *Blitter) Blit(ctx *Context, ss SamplerSource, srcRect, dstRect math.Rect, ds *DrawState)

func (*Blitter) BlitGlyph 

func (b *Blitter) BlitGlyph(ctx *Context, ss SamplerSource, c gxui.Color, srcRect, dstRect math.Rect, ds *DrawState)

func (*Blitter) BlitRect 

func (b *Blitter) BlitRect(ctx *Context, dstRect math.Rect, color gxui.Color, ds *DrawState)

func (*Blitter) BlitShape 

func (b *Blitter) BlitShape(ctx *Context, shape Shape, color gxui.Color, ds *DrawState)

func (*Blitter) Commit 

func (b *Blitter) Commit(ctx *Context)

func (*Blitter) CommitGlyphs 

func (b *Blitter) CommitGlyphs(ctx *Context)

func (*Blitter) Destroy 

func (b *Blitter) Destroy(ctx *Context)

type Canvas 

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

func CreateCanvas 

func CreateCanvas(sizeDips math.Size) *Canvas

func (*Canvas) AddClip 

func (c *Canvas) AddClip(r math.Rect)

func (*Canvas) AddRef 

func (r *Canvas) AddRef()

func (*Canvas) Alive 

func (r *Canvas) Alive() bool

func (*Canvas) AssertAlive 

func (r *Canvas) AssertAlive(funcName string)

func (*Canvas) Clear 

func (c *Canvas) Clear(color gxui.Color)

func (*Canvas) Complete 

func (c *Canvas) Complete()

func (*Canvas) DrawCanvas 

func (c *Canvas) DrawCanvas(canvas gxui.Canvas, offsetDips math.Point)

func (*Canvas) DrawLines 

func (c *Canvas) DrawLines(lines gxui.Polygon, pen gxui.Pen)

func (*Canvas) DrawPolygon 

func (c *Canvas) DrawPolygon(poly gxui.Polygon, pen gxui.Pen, brush gxui.Brush)

func (*Canvas) DrawRect 

func (c *Canvas) DrawRect(r math.Rect, brush gxui.Brush)

func (*Canvas) DrawRoundedRect 

func (c *Canvas) DrawRoundedRect(r math.Rect, tl, tr, bl, br float32, pen gxui.Pen, brush gxui.Brush)

func (*Canvas) DrawRunes 

func (c *Canvas) DrawRunes(f gxui.Font, r []rune, col gxui.Color, p []math.Point, o math.Point)

func (*Canvas) DrawText 

func (c *Canvas) DrawText(f gxui.Font, s string, col gxui.Color, r math.Rect, h gxui.HorizontalAlignment, v gxui.VerticalAlignment)

func (*Canvas) DrawTexture 

func (c *Canvas) DrawTexture(t gxui.Texture, r math.Rect)

func (*Canvas) Pop 

func (c *Canvas) Pop()

func (*Canvas) Push 

func (c *Canvas) Push()

func (*Canvas) Release 

func (c *Canvas) Release()

func (*Canvas) Size 

func (c *Canvas) Size() math.Size

gxui.Canvas compliance

type CanvasOp 

type CanvasOp func(ctx *Context, dss *DrawStateStack)

type Context 

type Context struct {
	Blitter *Blitter
	// contains filtered or unexported fields
}

func CreateContext 

func CreateContext() *Context

func (*Context) Apply 

func (c *Context) Apply(ds *DrawState)

func (*Context) BeginDraw 

func (c *Context) BeginDraw(sizeDips, sizePixels math.Size)

func (*Context) Destroy 

func (c *Context) Destroy()

func (*Context) DipsToPixels 

func (c *Context) DipsToPixels() float32

func (*Context) EndDraw 

func (c *Context) EndDraw()

func (*Context) GetOrCreateIndexBufferContext 

func (c *Context) GetOrCreateIndexBufferContext(ib *IndexBuffer) IndexBufferContext

func (*Context) GetOrCreateTextureContext 

func (c *Context) GetOrCreateTextureContext(t *Texture) TextureContext

func (*Context) GetOrCreateVertexStreamContext 

func (c *Context) GetOrCreateVertexStreamContext(vs *VertexStream) VertexStreamContext

func (*Context) LastStats 

func (c *Context) LastStats() Stats

func (*Context) PointDipsToPixels 

func (c *Context) PointDipsToPixels(dips math.Point) math.Point

func (*Context) RectDipsToPixels 

func (c *Context) RectDipsToPixels(dips math.Rect) math.Rect

func (*Context) RenderTargetSizePixels 

func (c *Context) RenderTargetSizePixels() math.Size

func (*Context) Resolution 

func (c *Context) Resolution() Resolution

func (*Context) SizeDipsToPixels 

func (c *Context) SizeDipsToPixels(dips math.Size) math.Size

func (*Context) SizePixelsToDips 

func (c *Context) SizePixelsToDips(dips math.Size) math.Size

func (*Context) Stats 

func (c *Context) Stats() *Stats

type DrawMode 

type DrawMode int
const (
	POINTS         DrawMode = gl.POINTS
	LINE_STRIP     DrawMode = gl.LINE_STRIP
	LINE_LOOP      DrawMode = gl.LINE_LOOP
	LINES          DrawMode = gl.LINES
	TRIANGLE_STRIP DrawMode = gl.TRIANGLE_STRIP
	TRIANGLE_FAN   DrawMode = gl.TRIANGLE_FAN
	TRIANGLES      DrawMode = gl.TRIANGLES
)

func (DrawMode) PrimativeCount 

func (d DrawMode) PrimativeCount(vertexCount int) int

type DrawState 

type DrawState struct {
	// The below are all in window coordinates
	ClipPixels   math.Rect
	OriginPixels math.Point
}

type DrawStateStack 

type DrawStateStack []DrawState

func (*DrawStateStack) Head 

func (s *DrawStateStack) Head() *DrawState

func (*DrawStateStack) Pop 

func (s *DrawStateStack) Pop()

func (*DrawStateStack) Push 

func (s *DrawStateStack) Push(ds DrawState)

type Driver 

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

func (*Driver) Call 

func (d *Driver) Call(f func())

func (*Driver) CreateCanvas 

func (d *Driver) CreateCanvas(s math.Size) gxui.Canvas

func (*Driver) CreateFont 

func (d *Driver) CreateFont(name string, size int) gxui.Font

func (*Driver) CreateTexture 

func (d *Driver) CreateTexture(img image.Image, pixelsPerDip float32) gxui.Texture

func (*Driver) CreateViewport 

func (d *Driver) CreateViewport(width, height int, name string) gxui.Viewport

func (*Driver) EnableDebug 

func (d *Driver) EnableDebug(enabled bool)

func (*Driver) Events 

func (d *Driver) Events() chan func()

gxui.Driver compliance

func (*Driver) GetClipboard 

func (d *Driver) GetClipboard() (str string, err error)

func (*Driver) SetClipboard 

func (d *Driver) SetClipboard(str string)

func (*Driver) Terminate 

func (d *Driver) Terminate()

type Font 

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

func CreateFont 

func CreateFont(name string, data []byte, size int) *Font

func (*Font) Draw 

func (f *Font) Draw(ctx *Context, str string, col gxui.Color, alignRectDips math.Rect, h gxui.HorizontalAlignment, v gxui.VerticalAlignment, ds *DrawState)

func (*Font) DrawRunes 

func (f *Font) DrawRunes(ctx *Context, runes []rune, col gxui.Color, points []math.Point, origin math.Point, ds *DrawState)

func (*Font) GlyphMaxSize 

func (f *Font) GlyphMaxSize() math.Size

func (*Font) LayoutRunes 

func (f *Font) LayoutRunes(points []math.Point, runes []rune, alignRectDips math.Rect, h gxui.HorizontalAlignment, v gxui.VerticalAlignment)

func (*Font) LoadGlyphs 

func (f *Font) LoadGlyphs(first, last rune)

func (*Font) Measure 

func (f *Font) Measure(s string) math.Size

func (*Font) MeasureRunes 

func (f *Font) MeasureRunes(runes []rune) math.Size

func (*Font) Name 

func (f *Font) Name() string

func (*Font) Size 

func (f *Font) Size() int

type Framebuffer 

type Framebuffer struct {
	Dimensions  math.Size
	Framebuffer gl.Framebuffer
	Texture     gl.Texture
}

func CreateFramebuffer 

func CreateFramebuffer(dimensions math.Size) *Framebuffer

func (Framebuffer) Delete 

func (f Framebuffer) Delete()

func (Framebuffer) SizeBytes 

func (f Framebuffer) SizeBytes() int

type FramebufferPool 

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

func CreateFramebufferPool 

func CreateFramebufferPool(targetBytesAllocated int, stats *Stats) *FramebufferPool

func (*FramebufferPool) Acquire 

func (p *FramebufferPool) Acquire(dimensions math.Size) *Framebuffer

func (*FramebufferPool) Release 

func (p *FramebufferPool) Release(framebuffer *Framebuffer)

type GlobalStats 

type GlobalStats struct {
	CanvasCount       int
	ShapeCount        int
	VertexBufferCount int
	VertexStreamCount int
	IndexBufferCount  int
}

func (GlobalStats) String 

func (s GlobalStats) String() string

type GlyphBatch 

type GlyphBatch struct {
	DstRects  []float32
	SrcRects  []float32
	Colors    []float32
	ClipRects []float32
	Indices   []uint32
	GlyphPage SamplerSource
}

type IndexBuffer 

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

func CreateIndexBuffer 

func CreateIndexBuffer(ty PrimitiveType, data interface{}) *IndexBuffer

func (*IndexBuffer) AddRef 

func (r *IndexBuffer) AddRef()

func (*IndexBuffer) Alive 

func (r *IndexBuffer) Alive() bool

func (*IndexBuffer) AssertAlive 

func (r *IndexBuffer) AssertAlive(funcName string)

func (IndexBuffer) CreateContext 

func (b IndexBuffer) CreateContext() IndexBufferContext

func (*IndexBuffer) Release 

func (b *IndexBuffer) Release()

type IndexBufferContext 

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

func (*IndexBufferContext) Destroy 

func (c *IndexBufferContext) Destroy()

func (IndexBufferContext) Render 

func (c IndexBufferContext) Render(drawMode DrawMode)

type PrimitiveType 

type PrimitiveType int
const (
	FLOAT  PrimitiveType = gl.FLOAT
	INT    PrimitiveType = gl.INT
	UINT   PrimitiveType = gl.UNSIGNED_INT
	USHORT PrimitiveType = gl.UNSIGNED_SHORT
	UBYTE  PrimitiveType = gl.UNSIGNED_BYTE
)

func (PrimitiveType) IsArrayOfType 

func (p PrimitiveType) IsArrayOfType(array interface{}) bool

func (PrimitiveType) SizeInBytes 

func (p PrimitiveType) SizeInBytes() int

type Quad 

type Quad struct {
	Texture          *Texture
	SrcRect, DstRect math.Rect
}

type RefCounted 

type RefCounted interface {
	AddRef()
	Release()
}

type Resolution 

type Resolution uint32

16:16 fixed point ratio of DIPs to pixels

func (Resolution) IntDipsToPixels 

func (r Resolution) IntDipsToPixels(s int) int

func (Resolution) PointDipsToPixels 

func (r Resolution) PointDipsToPixels(s math.Point) math.Point

func (Resolution) RectDipsToPixels 

func (r Resolution) RectDipsToPixels(s math.Rect) math.Rect

func (Resolution) SizeDipsToPixels 

func (r Resolution) SizeDipsToPixels(s math.Size) math.Size

type SamplerSource 

type SamplerSource interface {
	Texture() gl.Texture
	SizePixels() math.Size
	FlipY() bool
	PremultipliedAlpha() bool
}

type ShaderAttribute 

type ShaderAttribute struct {
	Name     string
	Size     int
	Type     ShaderDataType
	Location gl.AttribLocation
}

func CreateShaderAttribute 

func CreateShaderAttribute(name string, size int, ty ShaderDataType, location gl.AttribLocation) ShaderAttribute

type ShaderDataType 

type ShaderDataType int
const (
	FLOAT_MAT2x3 ShaderDataType = gl.FLOAT_MAT2x3
	FLOAT_MAT2x4 ShaderDataType = gl.FLOAT_MAT2x4
	FLOAT_MAT2   ShaderDataType = gl.FLOAT_MAT2
	FLOAT_MAT3x2 ShaderDataType = gl.FLOAT_MAT3x2
	FLOAT_MAT3x4 ShaderDataType = gl.FLOAT_MAT3x4
	FLOAT_MAT3   ShaderDataType = gl.FLOAT_MAT3
	FLOAT_MAT4x2 ShaderDataType = gl.FLOAT_MAT4x2
	FLOAT_MAT4x3 ShaderDataType = gl.FLOAT_MAT4x3
	FLOAT_MAT4   ShaderDataType = gl.FLOAT_MAT4
	FLOAT_VEC1   ShaderDataType = gl.FLOAT
	FLOAT_VEC2   ShaderDataType = gl.FLOAT_VEC2
	FLOAT_VEC3   ShaderDataType = gl.FLOAT_VEC3
	FLOAT_VEC4   ShaderDataType = gl.FLOAT_VEC4
	SAMPLER_2D   ShaderDataType = gl.SAMPLER_2D
)

func (ShaderDataType) SizeInBytes 

func (s ShaderDataType) SizeInBytes() int

func (ShaderDataType) String 

func (s ShaderDataType) String() string

func (ShaderDataType) VectorElementCount 

func (s ShaderDataType) VectorElementCount() int

func (ShaderDataType) VectorElementType 

func (s ShaderDataType) VectorElementType() PrimitiveType

type ShaderProgram 

type ShaderProgram struct {
	Program    gl.Program
	Uniforms   []ShaderUniform
	Attributes []ShaderAttribute
}

func CreateShaderProgram 

func CreateShaderProgram(ctx *Context, vsSource, fsSource string) *ShaderProgram

func (*ShaderProgram) Bind 

func (s *ShaderProgram) Bind(ctx *Context, vb *VertexBuffer, uniforms UniformBindings)

func (*ShaderProgram) Destroy 

func (s *ShaderProgram) Destroy(ctx *Context)

func (*ShaderProgram) Unbind 

func (s *ShaderProgram) Unbind(ctx *Context)

type ShaderUniform 

type ShaderUniform struct {
	Name        string
	Size        int
	Type        ShaderDataType
	Location    gl.UniformLocation
	TextureUnit int
}

func CreateShaderUniform 

func CreateShaderUniform(name string, size int, ty ShaderDataType, location gl.UniformLocation, textureUnit int) ShaderUniform

func (*ShaderUniform) Bind 

func (u *ShaderUniform) Bind(context *Context, v interface{})

type Shape 

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

func CreateQuadShape 

func CreateQuadShape() *Shape

func CreateShape 

func CreateShape(vb *VertexBuffer, ib *IndexBuffer, drawMode DrawMode) *Shape

func (*Shape) AddRef 

func (r *Shape) AddRef()

func (*Shape) Alive 

func (r *Shape) Alive() bool

func (*Shape) AssertAlive 

func (r *Shape) AssertAlive(funcName string)

func (Shape) Draw 

func (s Shape) Draw(ctx *Context, shader *ShaderProgram, ub UniformBindings)

func (*Shape) Release 

func (s *Shape) Release()

type Stats 

type Stats struct {
	TextureCount              int
	FramebufferUsedCount      int
	FramebufferFreeCount      int
	FramebufferBytesAllocated int
	VertexStreamCount         int
	IndexBufferCount          int
	ShaderProgramCount        int
	FrameCount                int
	DrawCallCount             int
	Timers                    []Timer
}

func (Stats) String 

func (s Stats) String() string

func (*Stats) Timer 

func (s *Stats) Timer(name string) *Timer

type Texture 

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

func CreateTexture 

func CreateTexture(img image.Image, pixelsPerDip float32) *Texture

func (*Texture) AddRef 

func (r *Texture) AddRef()

func (*Texture) Alive 

func (r *Texture) Alive() bool

func (*Texture) AssertAlive 

func (r *Texture) AssertAlive(funcName string)

func (*Texture) CreateContext 

func (t *Texture) CreateContext() TextureContext

func (*Texture) FlipY 

func (t *Texture) FlipY() bool

func (*Texture) Image 

func (t *Texture) Image() image.Image

gxui.Texture compliance

func (*Texture) Release 

func (r *Texture) Release()

func (*Texture) SetFlipY 

func (t *Texture) SetFlipY(flipY bool)

func (*Texture) Size 

func (t *Texture) Size() math.Size

func (*Texture) SizePixels 

func (t *Texture) SizePixels() math.Size

type TextureContext 

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

func (*TextureContext) Destroy 

func (c *TextureContext) Destroy()

func (TextureContext) FlipY 

func (c TextureContext) FlipY() bool

func (TextureContext) PremultipliedAlpha 

func (c TextureContext) PremultipliedAlpha() bool

func (TextureContext) SizePixels 

func (c TextureContext) SizePixels() math.Size

func (TextureContext) Texture 

func (c TextureContext) Texture() gl.Texture

type Timer 

type Timer struct {
	Name     string
	Duration time.Duration
	// contains filtered or unexported fields
}

func (Timer) Format 

func (t Timer) Format(f fmt.State, c rune)

func (*Timer) Start 

func (t *Timer) Start()

func (*Timer) Stop 

func (t *Timer) Stop()

type UniformBindings 

type UniformBindings map[string]interface{}

type VertexBuffer 

type VertexBuffer struct {
	Streams     map[string]*VertexStream
	VertexCount int
	// contains filtered or unexported fields
}

func CreateVertexBuffer 

func CreateVertexBuffer(streams ...*VertexStream) *VertexBuffer

func (*VertexBuffer) AddRef 

func (r *VertexBuffer) AddRef()

func (*VertexBuffer) Alive 

func (r *VertexBuffer) Alive() bool

func (*VertexBuffer) AssertAlive 

func (r *VertexBuffer) AssertAlive(funcName string)

func (*VertexBuffer) Release 

func (vb *VertexBuffer) Release()

type VertexStream 

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

func CreateVertexStream 

func CreateVertexStream(name string, ty ShaderDataType, data interface{}) *VertexStream

func (*VertexStream) AddRef 

func (r *VertexStream) AddRef()

func (*VertexStream) Alive 

func (r *VertexStream) Alive() bool

func (*VertexStream) AssertAlive 

func (r *VertexStream) AssertAlive(funcName string)

func (VertexStream) CreateContext 

func (s VertexStream) CreateContext() VertexStreamContext

func (VertexStream) Name 

func (s VertexStream) Name() string

func (*VertexStream) Release 

func (s *VertexStream) Release()

func (VertexStream) Type 

func (s VertexStream) Type() ShaderDataType

func (VertexStream) VertexCount 

func (s VertexStream) VertexCount() int

type VertexStreamContext 

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

func (VertexStreamContext) Bind 

func (c VertexStreamContext) Bind()

func (*VertexStreamContext) Destroy 

func (c *VertexStreamContext) Destroy()

type Viewport 

type Viewport struct {
	sync.Mutex
	// contains filtered or unexported fields
}

func CreateViewport 

func CreateViewport(driver *Driver, width, height int, title string) *Viewport

func (*Viewport) Close 

func (v *Viewport) Close()

func (*Viewport) ContinuousRedraw 

func (v *Viewport) ContinuousRedraw() bool

func (*Viewport) Destroy 

func (v *Viewport) Destroy()

func (*Viewport) Hide 

func (v *Viewport) Hide()

func (*Viewport) OnClose 

func (v *Viewport) OnClose(f func()) gxui.EventSubscription

func (*Viewport) OnKeyDown 

func (v *Viewport) OnKeyDown(f func(gxui.KeyboardEvent)) gxui.EventSubscription

func (*Viewport) OnKeyRepeat 

func (v *Viewport) OnKeyRepeat(f func(gxui.KeyboardEvent)) gxui.EventSubscription

func (*Viewport) OnKeyStroke 

func (v *Viewport) OnKeyStroke(f func(gxui.KeyStrokeEvent)) gxui.EventSubscription

func (*Viewport) OnKeyUp 

func (v *Viewport) OnKeyUp(f func(gxui.KeyboardEvent)) gxui.EventSubscription

func (*Viewport) OnMouseDown 

func (v *Viewport) OnMouseDown(f func(gxui.MouseEvent)) gxui.EventSubscription

func (*Viewport) OnMouseEnter 

func (v *Viewport) OnMouseEnter(f func(gxui.MouseEvent)) gxui.EventSubscription

func (*Viewport) OnMouseExit 

func (v *Viewport) OnMouseExit(f func(gxui.MouseEvent)) gxui.EventSubscription

func (*Viewport) OnMouseMove 

func (v *Viewport) OnMouseMove(f func(gxui.MouseEvent)) gxui.EventSubscription

func (*Viewport) OnMouseScroll 

func (v *Viewport) OnMouseScroll(f func(gxui.MouseEvent)) gxui.EventSubscription

func (*Viewport) OnMouseUp 

func (v *Viewport) OnMouseUp(f func(gxui.MouseEvent)) gxui.EventSubscription

func (*Viewport) OnResize 

func (v *Viewport) OnResize(f func()) gxui.EventSubscription

func (*Viewport) SetCanvas 

func (v *Viewport) SetCanvas(canvas gxui.Canvas)

gxui.Viewport compliance These methods are all called on the application thread

func (*Viewport) SetContinuousRedraw 

func (v *Viewport) SetContinuousRedraw(continuousRedraw bool)

func (*Viewport) SetTitle 

func (v *Viewport) SetTitle(title string)

func (*Viewport) Show 

func (v *Viewport) Show()

func (*Viewport) SizeDips 

func (v *Viewport) SizeDips() math.Size

func (*Viewport) SizePixels 

func (v *Viewport) SizePixels() math.Size

func (*Viewport) Stats 

func (v *Viewport) Stats() string

func (*Viewport) Title 

func (v *Viewport) Title() string

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