add imagick
add gl routines fix resizing routine
This commit is contained in:
lordwelch
parent
a244345b54
commit
0461807287
@ -2,48 +2,53 @@
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package main
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import (
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"fmt"
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"math"
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"github.com/gographics/imagick/imagick"
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)
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func resizeImage(mw *imagick.MagickWand, newWidth, newHeight int, keepExactSize, center bool) (resmw *imagick.MagickWand) {
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func resizeImage(mw *imagick.MagickWand, newWidth, newHeight int, keepSpecSize, center bool) (resmw *imagick.MagickWand) {
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var (
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width, height int
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width, height, origHeight, origWidth int
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)
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origHeight := int(mw.GetImageHeight())
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origWidth := int(mw.GetImageWidth())
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origHeight = int(mw.GetImageHeight())
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fmt.Println("hahahahahah :-P")
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origWidth = int(mw.GetImageWidth())
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if (origHeight != newHeight) || (origWidth != newWidth) {
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if (round((origHeight / origWidth) * newWidth)) <= newHeight {
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height = round((float64(origHeight) / float64(origWidth))) * newWidth
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width = newWidth
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} else {
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width = round((float64(origWidth) / float64(origHeight))) * newHeight
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if (round((float64(origWidth) / float64(origHeight)) * float64(newHeight))) <= newWidth {
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width = round((float64(origWidth) / float64(origHeight)) * float64(newHeight))
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height = newHeight
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} else {
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height = round((float64(origHeight) / float64(origWidth)) * float64(newWidth))
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width = newWidth
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}
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} else {
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height = newHeight
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width = newWidth
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}
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if !keepExactSize {
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resmw.SetSize(width, height)
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resmw = imagick.NewMagickWand()
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if !keepSpecSize {
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resmw.NewImage(uint(width), uint(height), imagick.NewPixelWand())
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center = false
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} else {
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resmw.SetSize(newWidth, newHeight)
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resmw.NewImage(uint(newWidth), uint(newHeight), imagick.NewPixelWand())
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fmt.Println(resmw.GetImageHeight(), resmw.GetImageWidth())
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if center {
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err = mw.ResizeImage(width, height, imagick.FILTER_LANCZOS, 1)
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err = mw.ResizeImage(uint(width), uint(height), imagick.FILTER_LANCZOS, 1)
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if err != nil {
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panic(err)
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}
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resmw.CompositeImage(mw, imagick.COMPOSITE_OP_SRC_OVER, uint((width-newWidth)/2), uint((height-newHeight)/2))
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resmw.CompositeImage(mw, imagick.COMPOSITE_OP_SRC_OVER, round(float64(newWidth-width)/float64(2)), round(float64(newHeight-height)/float64(2)))
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} else {
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resmw.CompositeImage(mw, imagick.COMPOSITE_OP_SRC_OVER, 0, 0)
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}
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}
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mw.Destroy()
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return
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return resmw
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}
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func round(a float64) int {
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128
main.go
128
main.go
@ -5,13 +5,14 @@ import "C"
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import (
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"fmt"
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//"image"
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"image"
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"log"
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"os"
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"path/filepath"
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"github.com/go-gl/gl/v2.1/gl"
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"github.com/go-gl/glfw/v3.1/glfw"
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"github.com/gographics/imagick/imagick"
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"github.com/kardianos/osext"
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"github.com/lordwelch/qml"
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)
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@ -25,15 +26,18 @@ type cell struct {
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type slide []cell
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var (
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path string
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textEdit qml.Object
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cellQml qml.Object
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window *qml.Window
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win *glfw.Window
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slides slide
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err error
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monitors []*glfw.Monitor
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drawSlide func()
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x, y int
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path string
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textEdit qml.Object
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cellQml qml.Object
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window *qml.Window
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win *glfw.Window
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slides slide
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err error
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monitors []*glfw.Monitor
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mw1 *imagick.MagickWand
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tex1 uint32
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//drawSlide func()
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)
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func main() {
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@ -54,6 +58,14 @@ func main() {
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func run() error {
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var mainQml qml.Object
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imagick.Initialize()
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defer imagick.Terminate()
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mw1 = imagick.NewMagickWand()
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err = mw1.ReadImage("logo:")
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if err != nil {
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panic(err)
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}
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engine := qml.NewEngine()
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path, err = osext.ExecutableFolder()
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@ -81,15 +93,100 @@ func run() error {
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})
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window.Wait()
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mw1.Destroy()
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return nil
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}
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func setupScene() {
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gl.ClearColor(0.1, 0.5, 0.9, 0.0)
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mw2 := resizeImage(mw1, x, y, true, true)
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tex1 = newTexture(*mw2)
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gl.MatrixMode(gl.PROJECTION)
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gl.LoadIdentity()
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gl.Ortho(-1, 1, -1, 1, 1.0, 10.0)
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gl.MatrixMode(gl.MODELVIEW)
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gl.LoadIdentity()
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}
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func drawSlide() {
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gl.Clear(gl.COLOR_BUFFER_BIT)
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gl.MatrixMode(gl.MODELVIEW)
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gl.LoadIdentity()
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gl.Translatef(0, 0, -3.0)
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gl.Begin(gl.QUADS)
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gl.TexCoord2f(0, 0)
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gl.Vertex3f(-1, 1, 0)
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gl.TexCoord2f(1, 0)
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gl.Vertex3f(1, 1, 0)
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gl.TexCoord2f(1, 1)
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gl.Vertex3f(1, -1, 0)
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gl.TexCoord2f(0, 1)
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gl.Vertex3f(-1, -1, 0)
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gl.End()
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}
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func newTexture(mw imagick.MagickWand) uint32 {
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x1 := mw.GetImageWidth()
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y1 := mw.GetImageHeight()
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rgba := image.NewRGBA(image.Rect(0, 0, int(x1), int(y1)))
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if rgba.Stride != rgba.Rect.Size().X*4 {
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panic("unsupported stride")
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}
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TPix, _ := mw.ExportImagePixels(0, 0, x1, y1, "RGBA", imagick.PIXEL_CHAR)
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rgba.Pix = TPix.([]uint8)
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var texture1 uint32
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gl.Enable(gl.TEXTURE_2D)
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gl.GenTextures(1, &texture1)
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gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
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gl.TexImage2D(
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gl.TEXTURE_2D,
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0,
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gl.RGBA,
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int32(rgba.Rect.Size().X),
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int32(rgba.Rect.Size().Y),
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0,
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gl.RGBA,
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gl.UNSIGNED_BYTE,
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gl.Ptr(rgba.Pix))
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return texture1
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}
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func checkMon() {
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monitors = glfw.GetMonitors()
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glfw.WindowHint(glfw.ContextVersionMajor, 2)
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glfw.WindowHint(glfw.ContextVersionMinor, 1)
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glfw.WindowHint(glfw.AutoIconify, glfw.False)
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glfw.WindowHint(glfw.Decorated, glfw.False)
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if i := len(monitors); i < 2 {
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fmt.Println("You only have 1 monitor!!!!!!!!!!! :-P")
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win, err = glfw.CreateWindow(600, 800, "Cube", nil, nil)
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if err != nil {
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panic(err)
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}
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} else {
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fmt.Printf("You have %d monitors\n", i)
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x = monitors[1].GetVideoMode().Width
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y = monitors[1].GetVideoMode().Height
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win, err = glfw.CreateWindow(x, y, "Cube", nil, nil)
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fmt.Println(win.GetPos())
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win.SetPos(monitors[1].GetPos())
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fmt.Println(x, y)
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if err != nil {
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panic(err)
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}
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}
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monitorInfo()
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@ -109,24 +206,17 @@ func glInit() {
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log.Fatalln("failed to initialize glfw:", err)
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}
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checkMon()
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glfw.WindowHint(glfw.ContextVersionMajor, 2)
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glfw.WindowHint(glfw.ContextVersionMinor, 1)
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win, err = glfw.CreateWindow(800, 600, "Cube", nil, nil)
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if err != nil {
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panic(err)
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}
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win.MakeContextCurrent()
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if err := gl.Init(); err != nil {
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panic(err)
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}
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setupScene()
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win.SetPos(monitors[1].GetPos())
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gl.ClearColor(0.1, 0.5, 0.9, 0.0)
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qml.Func1 = func() int {
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if !win.ShouldClose() {
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gl.Clear(gl.COLOR_BUFFER_BIT)
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drawSlide()
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win.SwapBuffers()
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glfw.PollEvents()
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