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add ImgToBitmap and RGBAToBitmap support

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This commit is contained in:
vcaesar 2021-09-08 13:13:23 -04:00
parent c562426b5e
commit debdcc31d8
3 changed files with 66 additions and 3 deletions
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2
go.mod
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@ -9,7 +9,7 @@ require (
github.com/robotn/xgb v0.0.0-20190912153532-2cb92d044934
github.com/robotn/xgbutil v0.0.0-20190912154524-c861d6f87770
github.com/vcaesar/gops v0.21.1
github.com/vcaesar/imgo v0.12.2
github.com/vcaesar/imgo v0.20.0
github.com/vcaesar/tt v0.11.0
golang.org/x/image v0.0.0-20210628002857-a66eb6448b8d
golang.org/x/net v0.0.0-20201110031124-69a78807bb2b // indirect

4
go.sum
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@ -36,8 +36,8 @@ github.com/tklauser/numcpus v0.3.0 h1:ILuRUQBtssgnxw0XXIjKUC56fgnOrFoQQ/4+DeU2bi
github.com/tklauser/numcpus v0.3.0/go.mod h1:yFGUr7TUHQRAhyqBcEg0Ge34zDBAsIvJJcyE6boqnA8=
github.com/vcaesar/gops v0.21.1 h1:a8ZCbho+K3RP1+hlkGCSWih84Iu3hjXYKwZW3970hkg=
github.com/vcaesar/gops v0.21.1/go.mod h1:upqQTBNSvazU+AvHwXY7VPdJscLoOqOxw+vkmJKnjEk=
github.com/vcaesar/imgo v0.12.2 h1:PvIcE/832kDyxou+sE8ClSqXoPVU9xEMY47ieICkWhg=
github.com/vcaesar/imgo v0.12.2/go.mod h1:eJscuTEdc6sVn/hZruy8kWi61xqKHLtbAYyPeYcn+t4=
github.com/vcaesar/imgo v0.20.0 h1:lX7a2vygTri0Z3VYpwoQA2LPvbphFyT5ON4NTqdC4wQ=
github.com/vcaesar/imgo v0.20.0/go.mod h1:eJscuTEdc6sVn/hZruy8kWi61xqKHLtbAYyPeYcn+t4=
github.com/vcaesar/tt v0.11.0 h1:obQecjgbnAxxC6OYGY6yDvhGRW2PR5wD8Ma2uJH3WGA=
github.com/vcaesar/tt v0.11.0/go.mod h1:GHPxQYhn+7OgKakRusH7KJ0M5MhywoeLb8Fcffs/Gtg=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=

63
img.go Normal file
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@ -0,0 +1,63 @@
// Copyright 2016 The go-vgo Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// https://github.com/go-vgo/robotgo/blob/master/LICENSE
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
package robotgo
import (
"image"
"unsafe"
"github.com/vcaesar/imgo"
)
// RGBAToBitmap convert the standard image.RGBA to Bitmap
func RGBAToBitmap(r1 *image.RGBA) (bit Bitmap) {
bit.Width = r1.Bounds().Size().X
bit.Height = r1.Bounds().Size().Y
bit.Bytewidth = r1.Stride
src := ToUint8p(r1.Pix)
bit.ImgBuf = src
bit.BitsPixel = 32
bit.BytesPerPixel = 32 / 8
return
}
// ImgToBitmap convert the standard image.Image to Bitmap
func ImgToBitmap(m image.Image) (bit Bitmap) {
bit.Width = m.Bounds().Size().X
bit.Height = m.Bounds().Size().Y
pix, stride, _ := imgo.EncodeImg(m)
bit.Bytewidth = stride
src := ToUint8p(pix)
bit.ImgBuf = src
//
bit.BitsPixel = 32
bit.BytesPerPixel = 32 / 8
return
}
// ToUint8p convert the []uint8 to uint8 pointer
func ToUint8p(dst []uint8) *uint8 {
src := make([]uint8, len(dst)+10)
for i := 0; i < len(dst)-4; i += 4 {
src[i+3] = dst[i+3]
src[i] = dst[i+2]
src[i+1] = dst[i+1]
src[i+2] = dst[i]
}
ptr := unsafe.Pointer(&src[0])
return (*uint8)(ptr)
}