Move functions

raylib/rtextures.go

@@ -12,6 +12,11 @@ import (
 	"unsafe"
 )
 
+// newImageFromPointer - Returns new Image from pointer
+func newImageFromPointer(ptr unsafe.Pointer) *Image {
+	return (*Image)(ptr)
+}
+
 // cptr returns C pointer
 func (i *Image) cptr() *C.Image {
 	return (*C.Image)(unsafe.Pointer(i))
@@ -31,16 +36,51 @@ func (i *Image) ToImage() image.Image {
 	return img
 }
 
+// newTexture2DFromPointer - Returns new Texture2D from pointer
+func newTexture2DFromPointer(ptr unsafe.Pointer) Texture2D {
+	return *(*Texture2D)(ptr)
+}
+
 // cptr returns C pointer
 func (t *Texture2D) cptr() *C.Texture2D {
 	return (*C.Texture2D)(unsafe.Pointer(t))
 }
 
+// newRenderTexture2DFromPointer - Returns new RenderTexture2D from pointer
+func newRenderTexture2DFromPointer(ptr unsafe.Pointer) RenderTexture2D {
+	return *(*RenderTexture2D)(ptr)
+}
+
 // cptr returns C pointer
 func (r *RenderTexture2D) cptr() *C.RenderTexture2D {
 	return (*C.RenderTexture2D)(unsafe.Pointer(r))
 }
 
+// NewImageFromImage - Returns new Image from Go image.Image
+func NewImageFromImage(img image.Image) *Image {
+	size := img.Bounds().Size()
+
+	cx := (C.int)(size.X)
+	cy := (C.int)(size.Y)
+	ccolor := colorCptr(White)
+	ret := C.GenImageColor(cx, cy, *ccolor)
+
+	for y := 0; y < size.Y; y++ {
+		for x := 0; x < size.X; x++ {
+			color := img.At(x, y)
+			r, g, b, a := color.RGBA()
+			rcolor := NewColor(uint8(r), uint8(g), uint8(b), uint8(a))
+			ccolor = colorCptr(rcolor)
+
+			cx = (C.int)(x)
+			cy = (C.int)(y)
+			C.ImageDrawPixel(&ret, cx, cy, *ccolor)
+		}
+	}
+	v := newImageFromPointer(unsafe.Pointer(&ret))
+	return v
+}
+
 // LoadImage - Load an image into CPU memory (RAM)
 func LoadImage(fileName string) *Image {
 	cfileName := C.CString(fileName)