本文整理汇总了Golang中C.DestroyExceptionInfo函数的典型用法代码示例。如果您正苦于以下问题:Golang DestroyExceptionInfo函数的具体用法?Golang DestroyExceptionInfo怎么用?Golang DestroyExceptionInfo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DestroyExceptionInfo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: FloatMatrix
// FloatMatrix returns an Image in the GRAY colorspace as FloatMatrix,
// where each pixel represents an element of the matrix. Each element
// is normalized to the [0,1] range.
func (im *Image) FloatMatrix() (FloatMatrix, error) {
if im.Colorspace() != GRAY {
return nil, fmt.Errorf("FloatMatrix() is available only for GRAY images, this one is in %s", im.Colorspace())
}
width := im.Width()
height := im.Height()
ptrs := make([]*C.double, width)
for ii := range ptrs {
ptrs[ii] = allocDoublePtr(height)
}
defer func() {
for _, p := range ptrs {
freeDoublePtr(p)
}
}()
var ex C.ExceptionInfo
C.GetExceptionInfo(&ex)
defer C.DestroyExceptionInfo(&ex)
C.image_matrix(im.image, (**C.double)(unsafe.Pointer(&ptrs[0])), &ex)
if ex.severity != C.UndefinedException {
return nil, exError(&ex, "generating float matrix")
}
m := make([][]float64, width)
for ii := range m {
m[ii] = doublePtrToFloat64Slice(ptrs[ii], height)
}
return FloatMatrix(m), nil
}
示例2: main
func main() {
// Some GraphicsMagick boilerplate
C.InitializeMagick(nil)
defer C.DestroyMagick()
C.GetExceptionInfo(&exceptionInfo)
imageInfo = C.CloneImageInfo(nil)
defer C.DestroyExceptionInfo(&exceptionInfo)
defer C.DestroyImageInfo(imageInfo)
// main OMIT
Show("./cgo/armed_gopher.jpg")
img, err := Read("./cgo/armed_gopher.jpg")
if err != nil {
fmt.Println(err)
return
}
if img, err = Resize(img, 200, 800); err != nil {
fmt.Println("resize error:", err)
return
}
if err = Save(img, "./cgo/resized_gopher.jpg"); err != nil {
fmt.Println("save error:", err)
return
}
Show("./cgo/resized_gopher.jpg")
}
示例3: fn
func (im *Image) fn(what string, f C.ImageFunc) (*Image, error) {
var ex C.ExceptionInfo
C.GetExceptionInfo(&ex)
defer C.DestroyExceptionInfo(&ex)
res := C.bridge_image_func(f, im.image, &ex)
return checkImage(res, nil, &ex, what)
}
示例4: Roll
func (im *Image) Roll(xoffset, yoffset int) (*Image, error) {
var ex C.ExceptionInfo
C.GetExceptionInfo(&ex)
defer C.DestroyExceptionInfo(&ex)
rolled := C.RollImage(im.image, magickLong(xoffset), magickLong(yoffset), &ex)
return checkImage(rolled, nil, &ex, "rolling")
}
示例5: Composite
// Composite modifies the image, drawing the draw Image argument at offset
// (x, y) using the c Composite operation.
func (im *Image) Composite(c Composite, draw *Image, x int, y int) error {
op, err := im.compositeOperator(c)
if err != nil {
return err
}
var ex C.ExceptionInfo
C.GetExceptionInfo(&ex)
defer C.DestroyExceptionInfo(&ex)
var data C.CompositeData
data.composite = C.int(op)
data.draw = draw.image
data.x = C.int(x)
data.y = C.int(y)
res, err := im.applyDataFunc("compositing", C.ImageDataFunc(C.compositeImage), &data)
// res.image will be != than im.image when im is a non
// coalesced animation
if res.image != im.image {
unrefImages(im.image)
initializeRefCounts(res.image)
refImages(res.image)
im.image = res.image
dontFree(res)
}
return err
}
示例6: IsPalette
func (im *Image) IsPalette() (bool, error) {
var ex C.ExceptionInfo
C.GetExceptionInfo(&ex)
defer C.DestroyExceptionInfo(&ex)
b := C.IsPaletteImage(im.image, &ex)
if ex.severity != C.UndefinedException {
return false, exError(&ex, "getting isPalette")
}
return int(b) != 0, nil
}
示例7: NColors
func (im *Image) NColors() (int, error) {
var ex C.ExceptionInfo
C.GetExceptionInfo(&ex)
defer C.DestroyExceptionInfo(&ex)
val := C.GetNumberColors(im.image, nil, &ex)
if ex.severity != C.UndefinedException {
return 0, exError(&ex, "getting colors")
}
return int(val), nil
}
示例8: Negate
// Negate inverts the colors in the image
func (im *MagickImage) Negate() (err error) {
exception := C.AcquireExceptionInfo()
defer C.DestroyExceptionInfo(exception)
new_image := C.Negate(im.Image, exception)
if failed := C.CheckException(exception); failed == C.MagickTrue {
return ErrorFromExceptionInfo(exception)
}
im.ReplaceImage(new_image)
return nil
}
示例9: ChannelDepth
// ChannelDepth returns the depth of the given channel.
func (im *Image) ChannelDepth(ch Channel) (uint, error) {
var ex C.ExceptionInfo
C.GetExceptionInfo(&ex)
defer C.DestroyExceptionInfo(&ex)
ret := C.GetImageChannelDepth(im.image, C.ChannelType(ch), &ex)
if ex.severity != C.UndefinedException {
return 0, exError(&ex, "getting channel info")
}
return uint(ret), nil
}
示例10: statistics
func (im *Image) statistics() (*Statistics, error) {
var ex C.ExceptionInfo
C.GetExceptionInfo(&ex)
defer C.DestroyExceptionInfo(&ex)
var stats C.ImageStatistics
C.GetImageStatistics(im.image, &stats, &ex)
if ex.severity != C.UndefinedException {
return nil, exError(&ex, "getting statistics")
}
return newStatistics(&stats), nil
}
示例11: ParseGeometryToRectangleInfo
// ParseGeometryToRectangleInfo converts from a geometry string (WxH+X+Y) into a Magick
// RectangleInfo that contains the individual properties
func (im *MagickImage) ParseGeometryToRectangleInfo(geometry string) (info C.RectangleInfo, err error) {
c_geometry := C.CString(geometry)
defer C.free(unsafe.Pointer(c_geometry))
exception := C.AcquireExceptionInfo()
defer C.DestroyExceptionInfo(exception)
C.ParseRegionGeometry(im.Image, c_geometry, &info, exception)
if failed := C.CheckException(exception); failed == C.MagickTrue {
err = ErrorFromExceptionInfo(exception)
}
return
}
示例12: IntegralRotateImage
// IntegralRotateImage rotates the image an integral of 90 degrees
func (im *MagickImage) IntegralRotateImage(rotations int) (err error) {
exception := C.AcquireExceptionInfo()
defer C.DestroyExceptionInfo(exception)
new_image := C.IntegralRotateImage(im.Image, C.size_t(rotations), exception)
if failed := C.CheckException(exception); failed == C.MagickTrue {
return ErrorFromExceptionInfo(exception)
}
im.ReplaceImage(new_image)
return nil
}
示例13: applyFunc
func (im *Image) applyFunc(what string, f C.ImageFunc) (*Image, error) {
var ex C.ExceptionInfo
C.GetExceptionInfo(&ex)
defer C.DestroyExceptionInfo(&ex)
res := C.apply_image_func(f, im.root(), unsafe.Pointer(im.parent), btoi(im.coalesced), &ex)
if res == nil {
return nil, exError(&ex, what)
}
ret := newImage(res, nil)
ret.coalesced = true
return ret, nil
}
示例14: FillBackgroundColor
// FillBackgroundColor fills transparent areas of an image with a solid color and stores the filled image in place.
// color can be any color format that image magick understands, see: http://www.imagemagick.org/ImageMagick-7.0.0/script/color.php#models
func (im *MagickImage) FillBackgroundColor(color string) (err error) {
exception := C.AcquireExceptionInfo()
defer C.DestroyExceptionInfo(exception)
c_color := C.CString(color)
defer C.free(unsafe.Pointer(c_color))
new_image := C.FillBackgroundColor(im.Image, c_color, exception)
if failed := C.CheckException(exception); failed == C.MagickTrue {
return ErrorFromExceptionInfo(exception)
}
im.ReplaceImage(new_image)
return nil
}
示例15: Clone
// Clone returns a copy of the image. If the image
// has multiple frames, it copies all of them. To
// Clone just one frame use im.Frame(i).Clone().
func (im *Image) Clone() (*Image, error) {
var ex C.ExceptionInfo
C.GetExceptionInfo(&ex)
defer C.DestroyExceptionInfo(&ex)
var image *C.Image
if im.parent == nil {
image = C.CloneImageList(im.image, &ex)
} else {
image = C.CloneImage(im.image, magickSize(0), magickSize(0), 1, &ex)
}
return checkImage(image, nil, &ex, "cloning")
}