g4

package module

v0.0.0-...-dacabe5 Latest Latest Go to latest Published: Jul 1, 2016 License: MIT Imports: 15 Imported by: 1

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/amortaza/go-g4

Links

Open Source Insights

README ¶

go-g4

Rendering functions for Rectangles, Fonts, Canvas, Transparencies

Documentation ¶

Index ¶

func Clear(red, green, blue, alpha float32)
func ClearRect(width, height int, red, green, blue float32)
func DrawCanvasRect(canvas *Canvas, left, top, width, height int, alphas []float32)
func DrawColorRect(left, top, width, height int, leftTopColor []float32, rightTopColor []float32, ...)
func DrawStringRect(fontTexture *StringTexture, left, top int, rgbFg []float32, rgbBg []float32, ...)
func DrawTextureRect(texture *Texture, left, top, width, height int, alphas []float32)
func DrawTextureRectUpsideDown(texture *Texture, left, top, width, height int, alphas []float32)
func Init()
func LoadTrueTypeFromFile(fontFilename string) *truetype.Font
func PopOrtho()
func PopView()
func PopViewport()
func PushOrtho(width, height int)
func PushView(width, height int)
func PushViewport(width, height int)
func Uninit()
type Canvas
- func NewCanvas(width, height int) *Canvas
- func (c *Canvas) Begin()
- func (c *Canvas) Clear(red, green, blue float32)
- func (c *Canvas) End()
- func (c *Canvas) Free()
- func (c *Canvas) Paint(seeThru bool, left, top int, alphas []float32)
type ColorRect
- func NewColorRect() *ColorRect
- func (r *ColorRect) Draw(left, top, width, height int, leftTopColor []float32, rightTopColor []float32, ...)
- func (r *ColorRect) DrawSolid(left, top, width, height int, red, green, blue float32, projection *float32)
- func (r *ColorRect) Free()
type FrameBuffer
- func NewFrameBuffer(width, height int) *FrameBuffer
- func (f *FrameBuffer) Begin()
- func (f *FrameBuffer) End()
- func (f *FrameBuffer) Free()
type G4Font
- func NewG4Font(f *truetype.Font, fontSize int) *G4Font
- func (f *G4Font) Free()
- func (f *G4Font) Width(str string) int
type StringTexture
- func NewStringTexture(str string, aceFont *G4Font) *StringTexture
- func (s *StringTexture) Free()
type Texture
- func NewTexture() *Texture
- func (t *Texture) Activate(texUnit uint32)
- func (t *Texture) Allocate(width, height int)
- func (t *Texture) Deactivate()
- func (t *Texture) Free()
- func (t *Texture) LoadBytes_RGBA(width, height int, bytes []uint8)
- func (t *Texture) LoadImage(filename string)
type TextureRect
- func NewTextureRect(vertexShaderFilename, fragmentShaderFilename string) *TextureRect
- func (r *TextureRect) Draw(texture *Texture, left, top, width, height int, ...)
- func (r *TextureRect) DrawString(texture *Texture, left, top, width, height int, rgbFg []float32, ...)
- func (r *TextureRect) DrawUpsideDown(texture *Texture, left, top, width, height int, ...)
- func (r *TextureRect) Free()

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func Clear ¶

func Clear(red, green, blue, alpha float32)

func ClearRect ¶

func ClearRect(width, height int,
	red, green, blue float32)

func DrawCanvasRect ¶

func DrawCanvasRect(canvas *Canvas,
	left, top, width, height int,
	alphas []float32)

func DrawColorRect ¶

func DrawColorRect(left, top, width, height int,
	leftTopColor []float32,
	rightTopColor []float32,
	rightBottomColor []float32,
	leftBottomColor []float32)

func DrawStringRect ¶

func DrawStringRect(fontTexture *StringTexture,
	left, top int,
	rgbFg []float32,
	rgbBg []float32,
	alpha float32)

func DrawTextureRect ¶

func DrawTextureRect(texture *Texture,
	left, top, width, height int,
	alphas []float32)

func DrawTextureRectUpsideDown ¶

func DrawTextureRectUpsideDown(texture *Texture,
	left, top, width, height int,
	alphas []float32)

func Init ¶

func Init()

func LoadTrueTypeFromFile ¶

func LoadTrueTypeFromFile(fontFilename string) *truetype.Font

func PopOrtho ¶

func PopOrtho()

func PopView ¶

func PopView()

func PopViewport ¶

func PopViewport()

func PushOrtho ¶

func PushOrtho(width, height int)

func PushView ¶

func PushView(width, height int)

func PushViewport ¶

func PushViewport(width, height int)

func Uninit ¶

func Uninit()

Types ¶

type Canvas ¶

type Canvas struct {
	Framebuffer   *FrameBuffer
	Width, Height int
}

func NewCanvas ¶

func NewCanvas(width, height int) *Canvas

func (*Canvas) Begin ¶

func (c *Canvas) Begin()

func (*Canvas) Clear ¶

func (c *Canvas) Clear(red, green, blue float32)

func (*Canvas) End ¶

func (c *Canvas) End()

func (*Canvas) Free ¶

func (c *Canvas) Free()

func (*Canvas) Paint ¶

func (c *Canvas) Paint(seeThru bool, left, top int, alphas []float32)

type ColorRect ¶

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

func NewColorRect ¶

func NewColorRect() *ColorRect

func (*ColorRect) Draw ¶

func (r *ColorRect) Draw(left, top, width, height int,
	leftTopColor []float32,
	rightTopColor []float32,
	rightBottomColor []float32,
	leftBottomColor []float32,
	projection *float32)

func (*ColorRect) DrawSolid ¶

func (r *ColorRect) DrawSolid(left, top, width, height int,
	red, green, blue float32,
	projection *float32)

func (*ColorRect) Free ¶

func (r *ColorRect) Free()

type FrameBuffer ¶

type FrameBuffer struct {
	Texture *Texture

	FramebufferId uint32
}

func NewFrameBuffer ¶

func NewFrameBuffer(width, height int) *FrameBuffer

func (*FrameBuffer) Begin ¶

func (f *FrameBuffer) Begin()

func (*FrameBuffer) End ¶

func (f *FrameBuffer) End()

func (*FrameBuffer) Free ¶

func (f *FrameBuffer) Free()

type G4Font ¶

type G4Font struct {
	Face    *font.Face
	Height  int
	Ascent  int
	Descent int
}

func NewG4Font ¶

func NewG4Font(f *truetype.Font, fontSize int) *G4Font

func (*G4Font) Free ¶

func (f *G4Font) Free()

func (*G4Font) Width ¶

func (f *G4Font) Width(str string) int

type StringTexture ¶

type StringTexture struct {
	String  string
	Texture *Texture
}

func NewStringTexture ¶

func NewStringTexture(str string, aceFont *G4Font) *StringTexture

func (*StringTexture) Free ¶

func (s *StringTexture) Free()

type Texture ¶

type Texture struct {
	TextureId uint32

	Width, Height int
	// contains filtered or unexported fields
}

func NewTexture ¶

func NewTexture() *Texture

func (*Texture) Activate ¶

func (t *Texture) Activate(texUnit uint32)

func (*Texture) Allocate ¶

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

func (*Texture) Deactivate ¶

func (t *Texture) Deactivate()

func (*Texture) Free ¶

func (t *Texture) Free()

func (*Texture) LoadBytes_RGBA ¶

func (t *Texture) LoadBytes_RGBA(width, height int, bytes []uint8)

func (*Texture) LoadImage ¶

func (t *Texture) LoadImage(filename string)

type TextureRect ¶

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

func NewTextureRect ¶

func NewTextureRect(vertexShaderFilename, fragmentShaderFilename string) *TextureRect

func (*TextureRect) Draw ¶

func (r *TextureRect) Draw(texture *Texture,
	left, top, width, height int,
	leftTopRightBottomAlphas []float32,
	projection *float32)

func (*TextureRect) DrawString ¶

func (r *TextureRect) DrawString(texture *Texture,
	left, top, width, height int,
	rgbFg []float32,
	rgbBg []float32,
	alpha float32,
	projection *float32)

func (*TextureRect) DrawUpsideDown ¶

func (r *TextureRect) DrawUpsideDown(texture *Texture,
	left, top, width, height int,
	leftTopRightBottomAlphas []float32,
	projection *float32)

func (*TextureRect) Free ¶

func (r *TextureRect) Free()

Source Files ¶

View all Source files

Directories ¶

Path	Synopsis
ace

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL