Golang gl.GenTexture函数代码示例

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本文整理汇总了Golang中github.com/go-gl/gl.GenTexture函数的典型用法代码示例。如果您正苦于以下问题：Golang GenTexture函数的具体用法？Golang GenTexture怎么用？Golang GenTexture使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了GenTexture函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: loadFont

// loadFont loads the given font data. This does not deal with font scaling.
// Scaling should be handled by the independent Bitmap/Truetype loaders.
// We therefore expect the supplied image and charset to already be adjusted
// to the correct font scale.
//
// The image should hold a sprite sheet, defining the graphical layout for
// every glyph. The config describes font metadata.
func loadFont(img *image.RGBA, config *FontConfig) (f *Font, err error) {
	f = new(Font)
	f.Config = config

	// Resize image to next power-of-two.
	img = glh.Pow2Image(img).(*image.RGBA)
	ib := img.Bounds()

	f.Width = ib.Dx()
	f.Height = ib.Dy()

	// Create the texture itself. It will contain all glyphs.
	// Individual glyph-quads display a subset of this texture.
	f.Texture = gl.GenTexture()
	f.Texture.Bind(gl.TEXTURE_2D)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
	gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, ib.Dx(), ib.Dy(), 0,
		gl.RGBA, gl.UNSIGNED_BYTE, img.Pix)

	// file, err := os.Create("font.png")
	// if err != nil {
	// 	log.Fatal(err)
	// }

	// err = png.Encode(file, img)
	// if err != nil {
	// 	log.Fatal(err)
	// }

	return
}

开发者ID:nobonobo，项目名称:gltext，代码行数:39，代码来源:font.go

示例2: Init

func (v *Video) Init(w int, h int) {
	var err error
	if err = glfw.Init(); err != nil {
		log.Fatal(err)
	}

	glfw.OpenWindowHint(glfw.WindowNoResize, gl.TRUE)

	if err = glfw.OpenWindow(w, h, 8, 8, 8, 0, 24, 0, glfw.Windowed); err != nil {
		log.Fatal(err)
	}

	if gl.Init() != 0 {
		log.Fatal("ummm... hmmm")
	}

	glfw.SetWindowSizeCallback(resize)

	gl.Enable(gl.TEXTURE_2D)

	resize(w, h)

	v.Texture = gl.GenTexture()

}

开发者ID:samfoo，项目名称:gones，代码行数:25，代码来源:video.go

示例3: NewFramebuffer

// Creates a new Framebuffer.
func NewFramebuffer(w int, h int) (fb *Framebuffer, err error) {
	var (
		buffer  gl.Framebuffer
		texture gl.Texture
	)
	buffer = gl.GenFramebuffer()
	buffer.Bind()
	texture = gl.GenTexture()
	texture.Bind(gl.TEXTURE_2D)
	gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, w, h, 0, gl.RGBA, gl.UNSIGNED_BYTE, nil)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST)
	gl.FramebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture, 0)
	gl.DrawBuffer(gl.COLOR_ATTACHMENT0)
	if gl.CheckFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE {
		err = fmt.Errorf("Framebuffer could not be set up")
		return
	}
	fb = &Framebuffer{
		Buffer:  buffer,
		Texture: texture,
		Width:   w,
		Height:  h,
	}
	return
}

开发者ID:pikkpoiss，项目名称:ld27，代码行数:27，代码来源:framebuffer.go

示例4: createTexture

func createTexture(r io.Reader) (gl.Texture, error) {
	img, err := png.Decode(r)
	if err != nil {
		return gl.Texture(0), err
	}

	rgbaImg, ok := img.(*image.NRGBA)
	if !ok {
		return gl.Texture(0), errors.New("texture must be an NRGBA image")
	}

	textureId := gl.GenTexture()
	textureId.Bind(gl.TEXTURE_2D)
	gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
	gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)

	// flip image: first pixel is lower left corner
	imgWidth, imgHeight := img.Bounds().Dx(), img.Bounds().Dy()
	data := make([]byte, imgWidth*imgHeight*4)
	lineLen := imgWidth * 4
	dest := len(data) - lineLen
	for src := 0; src < len(rgbaImg.Pix); src += rgbaImg.Stride {
		copy(data[dest:dest+lineLen], rgbaImg.Pix[src:src+rgbaImg.Stride])
		dest -= lineLen
	}
	gl.TexImage2D(gl.TEXTURE_2D, 0, 4, imgWidth, imgHeight, 0, gl.RGBA, gl.UNSIGNED_BYTE, data)

	return textureId, nil
}

开发者ID:nzlov，项目名称:examples，代码行数:29，代码来源:gopher.go

示例5: imageAlpha

func imageAlpha(pix []byte, width, height int) (*Sampler2D, error) {
	s := &Sampler2D{
		tex: gl.GenTexture(),
	}
	s.bind()
	gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
	gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
	gl.TexImage2D(gl.TEXTURE_2D, 0, gl.R8, width, height, 0, gl.RED, gl.UNSIGNED_BYTE, pix)
	return s, nil
}

开发者ID:james4k，项目名称:gfx，代码行数:10，代码来源:sampler.go

示例6: NewTexture

// Create a new texture, initialize it to have a `gl.LINEAR` filter and use
// `gl.CLAMP_TO_EDGE`.
func NewTexture(w, h int) *Texture {
	texture := &Texture{gl.GenTexture(), w, h}
	With(texture, func() {
		gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
		gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
		gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE)
		gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE)
		gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_R, gl.CLAMP_TO_EDGE)
	})
	return texture
}

开发者ID:andrebq，项目名称:glh，代码行数:13，代码来源:texture.go

示例7: loadTile

func (rm *ResourceManager) loadTile(name string) (*Bitmap, bool) {
	fname, _ := filepath.Abs(path.Join("resources", name))
	var tex gl.Texture
	allegro.RunInThread(func() {
		tex = gl.GenTexture()
		tex.Bind(gl.TEXTURE_2D)
		glfw.LoadTexture2D(fname, 0)
	})
	bmp := Bitmap{tex, 0, 0, DEFAULT_TILE_WIDTH, DEFAULT_TILE_HEIGHT}
	rm.tileBmps[name] = bmp
	return &bmp, true
}

开发者ID:bluepeppers，项目名称:danckelmann，代码行数:12，代码来源:manager.go

示例8: getGLTexture

func getGLTexture(img image.Image, smoothing int) (gltexture gl.Texture, err error) {
	var data *bytes.Buffer
	if data, err = encodeTGA("texture", img); err != nil {
		return
	}
	gltexture = gl.GenTexture()
	gltexture.Bind(gl.TEXTURE_2D)
	if !glfw.LoadMemoryTexture2D(data.Bytes(), 0) {
		err = fmt.Errorf("Failed to load texture")
		return
	}
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, smoothing)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, smoothing)
	return
}

开发者ID:pikkpoiss，项目名称:ld27，代码行数:15，代码来源:texture.go

示例9: MakeTextureFromTGA

func MakeTextureFromTGA(fname string) gl.Texture {
	tex := gl.GenTexture()

	tex.Bind(gl.TEXTURE_2D)
	glfw.LoadTexture2D(fname, 0)

	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR)
	gl.GenerateMipmap(gl.TEXTURE_2D)

	//	glh.OpenGLSentinel() // check for errors

	return tex
}

开发者ID:GlenKelley，项目名称:mathgl，代码行数:16，代码来源:helper_windows.go

示例10: LoadTexture

func (self *OpenGLRenderer) LoadTexture(texture *render.Texture) gl.Texture {
	glTexture := gl.GenTexture()
	glTexture.Bind(gl.TEXTURE_2D)
	defer glTexture.Unbind(gl.TEXTURE_2D)

	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR)

	self.glTexImage2D(gl.TEXTURE_2D, texture)

	gl.GenerateMipmap(gl.TEXTURE_2D)

	return glTexture
}

开发者ID:jasonroelofs，项目名称:slartibartfast，代码行数:16，代码来源:opengl_renderer.go

示例11: initTexture2

func initTexture2(filename string) gl.Texture {
	img, err := glfw.ReadImage(filename+".tga", glfw.NoRescaleBit)
	if err != nil {
		panic(err)
	}
	rt := gl.GenTexture()
	gl.Enable(gl.TEXTURE_2D)
	rt.Bind(gl.TEXTURE_2D)
	gl.TexEnvf(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.MODULATE)
	gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST)
	gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST)
	// gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
	// gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
	gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, img.Width(), img.Height(), 0, gl.RGBA, gl.UNSIGNED_BYTE, img.Data())
	fmt.Println(filename, img.Width(), img.Height())
	return rt
}

开发者ID:TheOnly92，项目名称:gexic，代码行数:17，代码来源:main.go

示例12: Init

func (v *Video) Init(t <-chan []uint32, ft chan bool, n string) chan [2]int {
	v.tick = t
	v.frametick = ft
	v.resize = make(chan [2]int)

	if sdl.Init(sdl.INIT_VIDEO|sdl.INIT_JOYSTICK|sdl.INIT_AUDIO) != 0 {
		log.Fatal(sdl.GetError())
	}

	v.screen = sdl.SetVideoMode(512, 480, 32, sdl.OPENGL|sdl.RESIZABLE)

	if v.screen == nil {
		log.Fatal(sdl.GetError())
	}

	sdl.WM_SetCaption(fmt.Sprintf("Fergulator - %s", n), "")

	if gl.Init() != 0 {
		panic(sdl.GetError())
	}

	gl.Enable(gl.TEXTURE_2D)
	v.Reshape(int(v.screen.W), int(v.screen.H))

	v.tex = gl.GenTexture()

	joy = make([]*sdl.Joystick, sdl.NumJoysticks())

	for i := 0; i < sdl.NumJoysticks(); i++ {
		joy[i] = sdl.JoystickOpen(i)

		fmt.Println("-----------------")
		if joy[i] != nil {
			fmt.Printf("Joystick %d\n", i)
			fmt.Println("  Name: ", sdl.JoystickName(0))
			fmt.Println("  Number of Axes: ", joy[i].NumAxes())
			fmt.Println("  Number of Buttons: ", joy[i].NumButtons())
			fmt.Println("  Number of Balls: ", joy[i].NumBalls())
		} else {
			fmt.Println("  Couldn't open Joystick!")
		}
	}

	return v.resize
}

开发者ID:richardjoo，项目名称:Fergulator，代码行数:45，代码来源:video.go

示例13: uploadTexture_RGBA32

func uploadTexture_RGBA32(w, h int, data []byte) gl.Texture {

	id := gl.GenTexture()
	id.Bind(gl.TEXTURE_2D)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_R, gl.CLAMP_TO_EDGE)
	gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, int(w), int(h), 0, gl.RGBA, gl.UNSIGNED_BYTE, data)

	if gl.GetError() != gl.NO_ERROR {
		id.Delete()
		panic("Failed to load a texture")
		return 0
	}
	return id
}

开发者ID:jayschwa，项目名称:examples，代码行数:18，代码来源:main.go

示例14: CreateTexture

func CreateTexture(img image.Image) (*Texture, error) {
	imgW, imgH := img.Bounds().Dx(), img.Bounds().Dy()
	imgDim := Vector2{float32(imgW), float32(imgH)}

	rgbaImg, ok := img.(*image.NRGBA)
	if !ok {
		return nil, errors.New("texture must be an NRGBA image")
	}

	textureId := gl.GenTexture()
	textureId.Bind(gl.TEXTURE_2D)
	gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST)
	gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST)

	gl.TexImage2D(gl.TEXTURE_2D, 0, 4, imgW, imgH, 0, gl.RGBA, gl.UNSIGNED_BYTE, rgbaImg.Pix)

	return &Texture{textureId, imgDim, false, false, false, nextTextureCacheId()}, nil
}

开发者ID:BrunoAssis，项目名称:gosfml，代码行数:18，代码来源:texture.go

示例15: NewTextureEmpty

func NewTextureEmpty(width int, height int, model color.Model) *Texture {
	internalFormat, typ, format, target, e := ColorModelToGLTypes(model)
	if e != nil {
		return nil
	}
	a := gl.GenTexture()
	a.Bind(target)
	gl.TexImage2D(target, 0, internalFormat, width, height, 0, typ, format, nil)

	t := &Texture{a, false, nil, format, typ, internalFormat, target, width, height}

	t.SetWraping(WrapS, ClampToEdge)
	t.SetWraping(WrapT, ClampToEdge)
	t.SetFiltering(Nearest, Nearest)

	ResourceManager.Add(t)

	return t
}

开发者ID:gulinfang，项目名称:GarageEngine，代码行数:19，代码来源:Texture.go

示例16: NewTextureAtlas

// NewAtlas creates a new texture atlas.
//
// The given width, height and depth determine the size and depth of
// the underlying texture.
//
// depth should be 1, 3 or 4 and it will specify if the texture is
// created with Alpha, RGB or RGBA channels.
// The image data supplied through Atlas.Set() should be of the same format.
func NewTextureAtlas(width, height, depth int) *TextureAtlas {
	switch depth {
	case 1, 3, 4:
	default:
		panic("Invalid depth value")
	}

	a := new(TextureAtlas)
	a.width = width
	a.height = height
	a.depth = depth
	a.used = 0
	a.data = make([]byte, width*height*depth)

	// We want a one pixel border around the whole atlas to avoid
	// any artefacts when sampling our texture.
	a.nodes = append(a.nodes, atlasNode{1, 1, width - 2})
	a.texture = gl.GenTexture()
	return a
}

开发者ID:jasonrpowers，项目名称:glh，代码行数:28，代码来源:atlas.go

示例17: initTexture

func initTexture(filename string, width, height int) gl.Texture {
	file, err := os.Open(filename + ".png")
	if err != nil {
		panic(err)
	}
	defer file.Close()
	img, _, err := image.Decode(file)
	if err != nil {
		panic(err)
	}
	t := reflect.ValueOf(img)
	fmt.Println(t.Elem().Type().Name())
	canvas := image.NewRGBA(image.Rect(0, 0, width, height))
	for y := 0; y < height; y++ {
		for x := 0; x < width; x++ {
			r, g, b, a := img.At(x, y).RGBA()
			if (filename == "hex4v" || filename == "hexstar2" || filename == "hexborder") && r == 0 && g == 0 && b == 0 {
				a = 0
			}
			// if filename == "hex5k" {
			// 	fmt.Println(r, g, b, a)
			// }
			base := 4*x + canvas.Stride*y
			canvas.Pix[base] = uint8(r)
			canvas.Pix[base+1] = uint8(g)
			canvas.Pix[base+2] = uint8(b)
			canvas.Pix[base+3] = uint8(a)
		}
	}
	rt := gl.GenTexture()
	gl.Enable(gl.TEXTURE_2D)
	rt.Bind(gl.TEXTURE_2D)
	gl.TexEnvf(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.MODULATE)
	gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST)
	gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST)
	// gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
	// gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
	gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, canvas.Pix)
	return rt
}

开发者ID:TheOnly92，项目名称:gexic，代码行数:40，代码来源:main.go

示例18: loadCubeMap

func (self *OpenGLRenderer) loadCubeMap(material *render.Material) gl.Texture {
	glTexture := gl.GenTexture()
	glTexture.Bind(gl.TEXTURE_CUBE_MAP)
	defer glTexture.Unbind(gl.TEXTURE_CUBE_MAP)

	gl.TexParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MAG_FILTER, gl.NEAREST)
	gl.TexParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MIN_FILTER, gl.NEAREST)
	gl.TexParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE)
	gl.TexParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE)
	gl.TexParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_R, gl.CLAMP_TO_EDGE)

	self.glTexImage2D(gl.TEXTURE_CUBE_MAP_POSITIVE_X, material.CubeMap[render.CubeFace_Right])
	self.glTexImage2D(gl.TEXTURE_CUBE_MAP_NEGATIVE_X, material.CubeMap[render.CubeFace_Left])

	self.glTexImage2D(gl.TEXTURE_CUBE_MAP_POSITIVE_Y, material.CubeMap[render.CubeFace_Top])
	self.glTexImage2D(gl.TEXTURE_CUBE_MAP_NEGATIVE_Y, material.CubeMap[render.CubeFace_Bottom])

	self.glTexImage2D(gl.TEXTURE_CUBE_MAP_POSITIVE_Z, material.CubeMap[render.CubeFace_Front])
	self.glTexImage2D(gl.TEXTURE_CUBE_MAP_NEGATIVE_Z, material.CubeMap[render.CubeFace_Back])

	return glTexture
}

开发者ID:jasonroelofs，项目名称:slartibartfast，代码行数:22，代码来源:opengl_renderer.go

示例19: pack

// Packs image into a texture of size * size dimensions
func (i *ImagePacker) pack(size int) (SpriteSheet, error) {
	rootNode := newNode(size, size)

	for v, img := range i.images {
		err := rootNode.recInsert(img.w, img.h, v)
		if err != nil {
			return SpriteSheet{}, err
		}
	}

	nodeImage := image.NewRGBA(image.Rect(0, 0, size, size))

	traverseNodes(rootNode, func(nd node) {
		draw.Draw(nodeImage, image.Rect(nd.rc.left, nd.rc.top, nd.rc.right, nd.rc.bottom), i.images[nd.id].image, image.ZP, draw.Src)

		i.sprites[nd.id].left = float32(nd.rc.left) / float32(size)
		i.sprites[nd.id].top = float32(nd.rc.bottom) / float32(size)
		i.sprites[nd.id].right = float32(nd.rc.right) / float32(size)
		i.sprites[nd.id].bottom = float32(nd.rc.top) / float32(size)
		i.sprites[nd.id].W = float32(nd.rc.right - nd.rc.left)
		i.sprites[nd.id].H = float32(nd.rc.bottom - nd.rc.top)
	})

	texture := gl.GenTexture()
	texture.Bind(gl.TEXTURE_2D)

	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE)

	gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, size, size, 0, gl.RGBA, gl.UNSIGNED_BYTE, nodeImage.Pix)

	texture.Unbind(gl.TEXTURE_2D)

	spriteSheet := NewSpriteSheet(texture, size, size)

	return spriteSheet, nil
}

开发者ID:akovaski，项目名称:glSpriteSheet，代码行数:40，代码来源:ImagePacker.go

示例20: bind

// bind the given atlas to the current GL context
//
// the current implementation is very stupid, since it will
// upload the texture every single call.
//
// later, improve this to upload only if there is a real need for it
func (a *Atlas) bind() error {
	// discard any possible error
	if err := checkGlError(); err != nil {
		return err
	}
	if gl.Object(a.gltex).IsTexture() {
		a.gltex = gl.GenTexture()
	}
	a.gltex.Bind(gl.TEXTURE_2D)
	gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, a.data.Bounds().Dx(), a.data.Bounds().Dy(), 0, gl.RGBA, gl.UNSIGNED_BYTE, a.data.Pix)
	if err := checkGlError(gl.OUT_OF_MEMORY, gl.INVALID_OPERATION); err != nil {
		return err
	}

	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
	gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR)
	gl.GenerateMipmap(gl.TEXTURE_2D)
	panicGlError()
	return nil
}

开发者ID:andrebq，项目名称:exp，代码行数:28，代码来源:atlas.go

注：本文中的github.com/go-gl/gl.GenTexture函数示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。