update all downstream dependencies

no specific features I'm looking to add, just keeping thing up to date.
Unit tests and my manual testing seems like everything is still working
as expected.
This commit is contained in:
Will Norris 2017-06-01 08:37:05 -07:00
parent 17f19d612f
commit b5984d2822
25 changed files with 1661 additions and 486 deletions

View file

@ -1,28 +1,24 @@
package imaging
import (
"math"
"runtime"
"sync"
"sync/atomic"
)
var parallelizationEnabled = true
// if GOMAXPROCS = 1: no goroutines used
// if GOMAXPROCS > 1: spawn N=GOMAXPROCS workers in separate goroutines
// parallel starts parallel image processing based on the current GOMAXPROCS value.
// If GOMAXPROCS = 1 it uses no parallelization.
// If GOMAXPROCS > 1 it spawns N=GOMAXPROCS workers in separate goroutines.
func parallel(dataSize int, fn func(partStart, partEnd int)) {
numGoroutines := 1
partSize := dataSize
if parallelizationEnabled {
numProcs := runtime.GOMAXPROCS(0)
if numProcs > 1 {
numGoroutines = numProcs
partSize = dataSize / (numGoroutines * 10)
if partSize < 1 {
partSize = 1
}
numProcs := runtime.GOMAXPROCS(0)
if numProcs > 1 {
numGoroutines = numProcs
partSize = dataSize / (numGoroutines * 10)
if partSize < 1 {
partSize = 1
}
}
@ -54,6 +50,7 @@ func parallel(dataSize int, fn func(partStart, partEnd int)) {
}
}
// absint returns the absolute value of i.
func absint(i int) int {
if i < 0 {
return -i
@ -61,17 +58,14 @@ func absint(i int) int {
return i
}
// clamp & round float64 to uint8 (0..255)
func clamp(v float64) uint8 {
return uint8(math.Min(math.Max(v, 0.0), 255.0) + 0.5)
}
// clamp int32 to uint8 (0..255)
func clampint32(v int32) uint8 {
if v < 0 {
return 0
} else if v > 255 {
// clamp rounds and clamps float64 value to fit into uint8.
func clamp(x float64) uint8 {
v := int64(x + 0.5)
if v > 255 {
return 255
}
return uint8(v)
if v > 0 {
return uint8(v)
}
return 0
}