本文整理汇总了Golang中github.com/go-gl/gl/v2/1/gl.TexImage2D函数的典型用法代码示例。如果您正苦于以下问题:Golang TexImage2D函数的具体用法?Golang TexImage2D怎么用?Golang TexImage2D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TexImage2D函数的15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,您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: TexImage2D
// TexImage2D writes a 2D texture image.
//
// http://www.khronos.org/opengles/sdk/docs/man3/html/glTexImage2D.xhtml
func TexImage2D(target Enum, level int, width, height int, format Enum, ty Enum, data []byte) {
p := unsafe.Pointer(nil)
if len(data) > 0 {
p = gl.Ptr(&data[0])
}
gl.TexImage2D(uint32(target), int32(level), int32(format), int32(width), int32(height), 0, uint32(format), uint32(ty), p)
}
示例2: NewTexture
func (c *Context) NewTexture(width, height int, pixels []uint8, filter Filter) (Texture, error) {
var texture Texture
if err := c.runOnContextThread(func() error {
var t uint32
gl.GenTextures(1, &t)
// TODO: Use gl.IsTexture
if t <= 0 {
return errors.New("opengl: creating texture failed")
}
gl.PixelStorei(gl.UNPACK_ALIGNMENT, 4)
texture = Texture(t)
return nil
}); err != nil {
return 0, err
}
if err := c.BindTexture(texture); err != nil {
return 0, err
}
if err := c.runOnContextThread(func() error {
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, int32(filter))
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, int32(filter))
var p interface{}
if pixels != nil {
p = pixels
}
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, int32(width), int32(height), 0, gl.RGBA, gl.UNSIGNED_BYTE, gl.Ptr(p))
return nil
}); err != nil {
return 0, err
}
return texture, nil
}
示例3: newChipset
func newChipset(file string, tilesize int) chipset {
imgFile, err := os.Open(file)
if err != nil {
log.Fatalf("texture %q not found on disk: %v\n", file, err)
}
img, _, err := image.Decode(imgFile)
if err != nil {
panic(err)
}
rgba := image.NewRGBA(img.Bounds())
draw.Draw(rgba, rgba.Bounds(), img, image.ZP, draw.Src)
var texture uint32
gl.Enable(gl.TEXTURE_2D)
gl.GenTextures(1, &texture)
gl.BindTexture(gl.TEXTURE_2D, texture)
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,
int32(rgba.Rect.Size().X),
int32(rgba.Rect.Size().Y),
0,
gl.RGBA,
gl.UNSIGNED_BYTE,
gl.Ptr(rgba.Pix))
return chipset{width: rgba.Bounds().Dx(), height: rgba.Bounds().Dy(), handle: texture, tilesize: tilesize}
}
示例4: LataaKuvat
func LataaKuvat() {
file, err := os.Open("tiles.png")
if err != nil {
panic("En saa avattua kuvatiedostoa: " + err.Error())
}
kuva, _, err := image.Decode(file)
if err != nil {
panic("Kuva on rikki: " + err.Error())
}
var texture uint32
gl.GenTextures(1, &texture)
gl.BindTexture(gl.TEXTURE_2D, texture)
gl.TexImage2D(gl.TEXTURE_2D, 0, 4,
int32(kuva.Bounds().Dx()), int32(kuva.Bounds().Dy()), 0,
gl.RGBA, gl.UNSIGNED_BYTE,
unsafe.Pointer(&kuva.(*image.RGBA).Pix[0]),
)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.Enable(gl.TEXTURE_2D)
}
示例5: loadTexture
func loadTexture(fileName string) (uint32, error) {
imgFile, err := os.Open("./res/textures/" + fileName)
if err != nil {
return 0, err
}
imgCfg, _, err := image.DecodeConfig(imgFile)
if err != nil {
return 0, err
}
_, err = imgFile.Seek(0, 0)
if err != nil {
return 0, err
}
w, h := int32(imgCfg.Width), int32(imgCfg.Height)
img, _, err := image.Decode(imgFile)
if err != nil {
return 0, err
}
buffer := make([]byte, w*h*4)
index := 0
for y := 0; y < int(h); y++ {
for x := 0; x < int(w); x++ {
pixel := img.At(x, y).(color.NRGBA)
buffer[index] = pixel.R
buffer[index+1] = pixel.G
buffer[index+2] = pixel.B
buffer[index+3] = pixel.A
index += 4
}
}
var texture uint32
gl.GenTextures(1, &texture)
gl.BindTexture(gl.TEXTURE_2D, texture)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST)
gl.TexImage2D(
gl.TEXTURE_2D,
0,
gl.RGBA8,
w,
h,
0,
gl.RGBA,
gl.UNSIGNED_BYTE,
gl.Ptr(buffer))
return texture, nil
}
示例6: createHudTexture
func (ctx *DrawContext) createHudTexture(o *orrery.Orrery, frametime time.Duration) (uint32, [2]int, error) {
lines := []string{}
if o.Paused {
lines = append(lines, "PAUSED")
}
if ctx.verbose {
lines = append(lines, []string{
"WASD: Move, 1: Toggle wireframe, H: Toggle HUD verbosity, Q: Quit",
"Mouse Wheel: Move fast, Mouse Btn #1: Spawn particle, V: Spawn 10 particles",
"Space: Reset camera, P: Toggle pause",
}...)
}
lines = append(lines, []string{
fmt.Sprintf(` α: %0.2f θ: %0.2f`, ctx.cam.alpha, ctx.cam.theta),
fmt.Sprintf(` x: %0.2f y: %0.2f z: %0.2f`, ctx.cam.Pos.X, ctx.cam.Pos.Y, ctx.cam.Pos.Z),
fmt.Sprintf(` Last frame time: %s`, frametime),
}...)
if ctx.verbose {
particles := o.Particles()
lines = append(lines, fmt.Sprintf(`#P: %d`, len(particles)))
for i, p := range particles {
p.L.Lock()
l := fmt.Sprintf(` π %d: %s`, i, p)
p.L.Unlock()
lines = append(lines, l)
}
}
var txt uint32
gl.GenTextures(1, &txt)
gl.BindTexture(gl.TEXTURE_2D, txt)
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_BASE_LEVEL, 0)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAX_LEVEL, 0)
bg := color.RGBA{0, 0, 0, 0}
fg := color.RGBA{0, 255, 255, 255}
img, err := ctx.txt.RenderMultiline(lines, 12.5, bg, fg)
if err != nil {
return 0, [2]int{0, 0}, err
}
v := reflect.ValueOf(img.Pix)
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA,
int32(img.Bounds().Dx()), int32(img.Bounds().Dy()),
0, gl.RGBA, gl.UNSIGNED_BYTE, unsafe.Pointer(v.Index(0).UnsafeAddr()))
return txt, [2]int{img.Bounds().Dx(), img.Bounds().Dy()}, nil
}
示例7: main
func main() {
runtime.LockOSThread()
if err := glfw.Init(); err != nil {
panic(err)
}
defer glfw.Terminate()
window, err := glfw.CreateWindow(800, 600, "fontstash example", nil, nil)
if err != nil {
panic(err)
}
window.MakeContextCurrent()
glfw.SwapInterval(1)
gl.Init()
data, err := ioutil.ReadFile(filepath.Join("..", "ClearSans-Regular.ttf"))
if err != nil {
panic(err)
}
gl.Enable(gl.TEXTURE_2D)
tmpBitmap := make([]byte, 512*512)
cdata, err, _, tmpBitmap := truetype.BakeFontBitmap(data, 0, 32, tmpBitmap, 512, 512, 32, 96)
var ftex uint32
gl.GenTextures(1, &ftex)
gl.BindTexture(gl.TEXTURE_2D, ftex)
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.ALPHA, 512, 512, 0,
gl.ALPHA, gl.UNSIGNED_BYTE, unsafe.Pointer(&tmpBitmap[0]))
gl.ClearColor(0.3, 0.3, 0.32, 1.)
for !window.ShouldClose() {
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(0, 800, 600, 0, 0, 1)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
gl.Disable(gl.DEPTH_TEST)
gl.Color4ub(255, 255, 255, 255)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
my_print(100, 100, "The quick brown fox jumps over the fence", ftex, cdata)
window.SwapBuffers()
glfw.PollEvents()
}
}
示例8: TexImage2D
func (*backend) TexImage2D(
target gg.Enum, level int, internalFormat gg.Enum,
width, height, border int,
format, typ gg.Enum,
data interface{},
) {
gl.TexImage2D(
gl.TEXTURE_2D, int32(level), gl.RGBA,
int32(width), int32(height), int32(border),
uint32(format), uint32(typ),
gl.Ptr(data),
)
}
示例9: NewTexture
func NewTexture() *Texture {
texture := createTexture()
gl.BindTexture(gl.TEXTURE_2D, texture)
gl.TexImage2D(
gl.TEXTURE_2D, 0, gl.RGBA,
textureSize, textureSize,
0, gl.RGBA, gl.UNSIGNED_BYTE, nil)
gl.BindTexture(gl.TEXTURE_2D, 0)
t := Texture{}
t.texture = texture
t.lookup = make(map[string]int)
t.ch = make(chan string, 1024)
return &t
}
示例10: LoadTexture
func LoadTexture(path string) {
//fmt.Printf("Trying to load texture %q: ", path)
// Open the file
file, err := os.Open(path)
if err != nil {
fmt.Println(os.Getwd())
log.Fatal(err)
}
defer file.Close()
// Decode the image
img, _, err := image.Decode(file)
if err != nil {
log.Fatal(err)
}
bounds := img.Bounds()
//fmt.Printf("Loaded %vx%v texture.\n", bounds.Dx(), bounds.Dy())
var format int
var pixPointer *uint8
switch img := img.(type) {
case *image.RGBA:
format = gl.RGBA
pixPointer = &img.Pix[0]
case *image.NRGBA:
format = gl.RGBA
pixPointer = &img.Pix[0]
case *image.Gray:
format = gl.ALPHA
pixPointer = &img.Pix[0]
default:
log.Fatalf("LoadTexture: Unsupported type %T.\n", img)
}
var texture uint32
gl.GenTextures(1, &texture)
gl.BindTexture(gl.TEXTURE_2D, texture)
gl.TexParameteri(gl.TEXTURE_2D, gl.GENERATE_MIPMAP, gl.TRUE)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_LOD_BIAS, -0.5)
gl.TexImage2D(gl.TEXTURE_2D, 0, int32(format), int32(bounds.Dx()), int32(bounds.Dy()), 0, uint32(format), gl.UNSIGNED_BYTE, gl.Ptr(pixPointer))
CheckGLError()
}
示例11: newTexture
func newTexture(rgba image.RGBA) *uint32 {
var texture1 uint32
gl.Enable(gl.TEXTURE_2D)
gl.GenTextures(1, &texture1)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.TexImage2D(
gl.TEXTURE_2D,
0,
gl.RGBA,
int32(rgba.Rect.Size().X),
int32(rgba.Rect.Size().Y),
0,
gl.RGBA,
gl.UNSIGNED_BYTE,
gl.Ptr(rgba.Pix))
return &texture1
}
示例12: draw
func (atlas *FontAtlas) draw(rendered *image.RGBA, b Bounds) {
var texture uint32
gl.Enable(gl.TEXTURE_2D)
gl.GenTextures(1, &texture)
gl.BindTexture(gl.TEXTURE_2D, texture)
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,
int32(rendered.Bounds().Dx()),
int32(rendered.Bounds().Dy()),
0,
gl.RGBA,
gl.UNSIGNED_BYTE,
gl.Ptr(rendered.Pix))
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.ONE, gl.ONE_MINUS_SRC_ALPHA)
gl.Begin(gl.QUADS)
{
gl.TexCoord2f(0, 0)
gl.Vertex2f(b.Min.X, b.Min.Y)
gl.TexCoord2f(1, 0)
gl.Vertex2f(b.Max.X, b.Min.Y)
gl.TexCoord2f(1, 1)
gl.Vertex2f(b.Max.X, b.Max.Y)
gl.TexCoord2f(0, 1)
gl.Vertex2f(b.Min.X, b.Max.Y)
}
gl.End()
gl.Disable(gl.BLEND)
gl.DeleteTextures(1, &texture)
gl.Disable(gl.TEXTURE_2D)
}
示例13: NewGLImageFromImage
func NewGLImageFromImage(img image.Image) (*glImage, error) {
var rgba *image.RGBA
if asRGBA, ok := img.(*image.RGBA); ok {
rgba = asRGBA
} else {
rgba = image.NewRGBA(img.Bounds())
if rgba.Stride != rgba.Rect.Size().X*4 {
return nil, errors.New("unsupported stride")
}
draw.Draw(rgba, rgba.Bounds(), img, image.Point{0, 0}, draw.Src)
}
var tex uint32
gl.Enable(gl.TEXTURE_2D)
gl.GenTextures(1, &tex)
gl.BindTexture(gl.TEXTURE_2D, tex)
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,
int32(rgba.Bounds().Dx()),
int32(rgba.Bounds().Dy()),
0,
gl.RGBA,
gl.UNSIGNED_BYTE,
gl.Ptr(rgba.Pix),
)
return &glImage{
tex,
img.Bounds().Dx(),
img.Bounds().Dy(),
0.0,
0.0,
1.0,
1.0,
}, nil
}
示例14: NewTexture
func (c *Context) NewTexture(width, height int, pixels []uint8, filter Filter) (Texture, error) {
var t uint32
gl.GenTextures(1, &t)
if t < 0 {
return 0, errors.New("glGenTexture failed")
}
gl.PixelStorei(gl.UNPACK_ALIGNMENT, 4)
gl.BindTexture(gl.TEXTURE_2D, t)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, int32(filter))
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, int32(filter))
var p interface{}
if pixels != nil {
p = pixels
}
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, int32(width), int32(height), 0, gl.RGBA, gl.UNSIGNED_BYTE, gl.Ptr(p))
return Texture(t), nil
}
示例15: TexImage2D
func (c *Context) TexImage2D(target, level, internalFormat, format, kind int, data interface{}) {
var pix []uint8
width := 0
height := 0
if data == nil {
pix = nil
} else {
switch img := data.(type) {
case *image.NRGBA:
width = img.Bounds().Dx()
height = img.Bounds().Dy()
pix = img.Pix
case *image.RGBA:
width = img.Bounds().Dx()
height = img.Bounds().Dy()
pix = img.Pix
default:
panic(fmt.Errorf("Image type unsupported: %T", img))
}
}
gl.TexImage2D(uint32(target), int32(level), int32(internalFormat), int32(width), int32(height), int32(0), uint32(format), uint32(kind), gl.Ptr(pix))
}