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feat(#15): add benchmark tests

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master
Tomas Aparicio 11 years ago
parent 16576f49c9
commit bfe0e700ce
5 changed files with 77 additions and 36 deletions
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46
README.md
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@ -42,7 +42,7 @@ The [install script](https://github.com/lovell/sharp/blob/master/preinstall.sh)
- Enlarge
- Crop
- Rotate
- Flip
- Flip
- Thumbnail
- Extract area
- Format conversion
@ -56,7 +56,19 @@ Here you can see some performance test comparisons for multiple scenarios:
- [libvips speed and memory usage](http://www.vips.ecs.soton.ac.uk/index.php?title=Speed_and_Memory_Use)
- [sharp performance tests](https://github.com/lovell/sharp#the-task)
bimg performance tests coming soon!
#### bimg performance tests
Tested using Go 1.4 and libvips-7.42.3 in OSX i7 2.7Ghz
```
PASS
BenchmarkResizeLargeJpeg 30 46652408 ns/op
BenchmarkResizePng 20 57387902 ns/op
BenchmarkResizeWebP 500 2453220 ns/op
BenchmarkConvertToJpeg 30 35556414 ns/op
BenchmarkCrop 30 51768475 ns/op
BenchmarkExtract 30 50866406 ns/op
ok 9.424s
```
## API
@ -193,6 +205,12 @@ func Resize(buf []byte, o Options) ([]byte, error)
func Shutdown()
```
#### func Write
```go
func Write(path string, buf []byte) error
```
#### type Angle
```go
@ -263,13 +281,13 @@ func (i *Image) Convert(t ImageType) ([]byte, error)
#### func (*Image) Crop
```go
func (i *Image) Crop(width int, height int) ([]byte, error)
func (i *Image) Crop(width, height int) ([]byte, error)
```
#### func (*Image) Extract
```go
func (i *Image) Extract(top int, left int, width int, height int) ([]byte, error)
func (i *Image) Extract(top, left, width, height int) ([]byte, error)
```
#### func (*Image) Flip
@ -278,12 +296,6 @@ func (i *Image) Extract(top int, left int, width int, height int) ([]byte, error
func (i *Image) Flip() ([]byte, error)
```
#### func (*Image) Flop
```go
func (i *Image) Flop() ([]byte, error)
```
#### func (*Image) Metadata
```go
@ -299,7 +311,7 @@ func (i *Image) Process(o Options) ([]byte, error)
#### func (*Image) Resize
```go
func (i *Image) Resize(width int, height int) ([]byte, error)
func (i *Image) Resize(width, height int) ([]byte, error)
```
#### func (*Image) Rotate
@ -314,6 +326,12 @@ func (i *Image) Rotate(a Angle) ([]byte, error)
func (i *Image) Size() (ImageSize, error)
```
#### func (*Image) Thumbnail
```go
func (i *Image) Thumbnail(pixels int) ([]byte, error)
```
#### func (*Image) Type
```go
@ -325,10 +343,11 @@ func (i *Image) Type() string
```go
type ImageMetadata struct {
Orientation int
Channels int
Alpha bool
Profile bool
Space int
Type string
Space string
Size ImageSize
}
```
@ -407,6 +426,8 @@ func (i Interpolator) String() string
type Options struct {
Height int
Width int
AreaHeight int
AreaWidth int
Top int
Left int
Crop bool
@ -423,6 +444,7 @@ type Options struct {
}
```
## License
MIT - Tomas Aparicio

2
metadata.go
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@ -21,6 +21,7 @@ type ImageMetadata struct {
Size ImageSize
}
// Get the image size by width and height pixels
func Size(buf []byte) (ImageSize, error) {
metadata, err := Metadata(buf)
if err != nil {
@ -33,6 +34,7 @@ func Size(buf []byte) (ImageSize, error) {
}, nil
}
// Extract the image metadata (size, type, alpha channel, profile, EXIF orientation...)
func Metadata(buf []byte) (ImageMetadata, error) {
defer C.vips_thread_shutdown()

32
resize_test.go
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@ -134,7 +134,7 @@ func TestResizePngWithTransparency(t *testing.T) {
}
}
func benchmarkResize(file string, o Options, b *testing.B) {
func runBenchmarkResize(file string, o Options, b *testing.B) {
buf, _ := Read(path.Join("fixtures", file))
for n := 0; n < b.N; n++ {
@ -147,7 +147,7 @@ func BenchmarkResizeLargeJpeg(b *testing.B) {
Width: 800,
Height: 600,
}
benchmarkResize("test.jpg", options, b)
runBenchmarkResize("test.jpg", options, b)
}
func BenchmarkResizePng(b *testing.B) {
@ -155,7 +155,7 @@ func BenchmarkResizePng(b *testing.B) {
Width: 200,
Height: 200,
}
benchmarkResize("test.png", options, b)
runBenchmarkResize("test.png", options, b)
}
func BenchmarkResizeWebP(b *testing.B) {
@ -163,5 +163,29 @@ func BenchmarkResizeWebP(b *testing.B) {
Width: 200,
Height: 200,
}
benchmarkResize("test.webp", options, b)
runBenchmarkResize("test.webp", options, b)
}
func BenchmarkConvertToJpeg(b *testing.B) {
options := Options{Type: JPEG}
runBenchmarkResize("test.png", options, b)
}
func BenchmarkCrop(b *testing.B) {
options := Options{
Width: 800,
Height: 600,
Crop: true,
}
runBenchmarkResize("test.jpg", options, b)
}
func BenchmarkExtract(b *testing.B) {
options := Options{
Top: 100,
Left: 50,
AreaWidth: 600,
AreaHeight: 480,
}
runBenchmarkResize("test.jpg", options, b)
}

22
type.go
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@ -11,14 +11,27 @@ const (
MAGICK
)
// Determines the image type format (jpeg, png, webp or tiff)
func DetermineImageType(buf []byte) ImageType {
return vipsImageType(buf)
}
// Determines the image type format by name (jpeg, png, webp or tiff)
func DetermineImageTypeName(buf []byte) string {
return getImageTypeName(vipsImageType(buf))
}
// Check if a given image type is supported
func IsTypeSupported(t ImageType) bool {
return t == JPEG || t == PNG || t == WEBP
}
// Check if a given image type name is supported
func IsTypeNameSupported(t string) bool {
return t == "jpeg" || t == "jpg" ||
t == "png" || t == "webp"
}
func getImageTypeName(code ImageType) string {
imageType := "unknown"
@ -42,12 +55,3 @@ func getImageTypeName(code ImageType) string {
return imageType
}
func IsTypeSupported(t ImageType) bool {
return t == JPEG || t == PNG || t == WEBP
}
func IsTypeNameSupported(t string) bool {
return t == "jpeg" || t == "jpg" ||
t == "png" || t == "webp"
}

11
vips.h
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@ -11,12 +11,6 @@ enum types {
MAGICK
};
void
vips_malloc_cb(VipsObject *object, char *buf)
{
g_free(buf);
};
int
vips_affine_interpolator(VipsImage *in, VipsImage **out, double a, double b, double c, double d, VipsInterpolate *interpolator)
{
@ -157,10 +151,5 @@ vips_init_image(void *buf, size_t len, int imageType, VipsImage **out) {
#endif
}
// Listen for "postclose" signal to delete input buffer
//if (out != NULL) {
//g_signal_connect(out, "postclose", G_CALLBACK(vips_malloc_cb), buf);
//}
return code;
};

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