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