First Commit

libui-ng/test/images/gen.go

@@ -0,0 +1,94 @@
+// 25 june 2016
+package main
+
+import (
+	"fmt"
+	"os"
+	"image"
+	"image/draw"
+	_ "image/png"
+)
+
+type img struct {
+	filename	string
+	data		[]byte
+	width	int
+	height	int
+	stride	int
+}
+
+func main() {
+	if len(os.Args[1:]) == 0 {
+		panic("no files specified")
+	}
+
+	images := make([]*img, 0, len(os.Args[1:]))
+	for _, fn := range os.Args[1:] {
+		f, err := os.Open(fn)
+		if err != nil {
+			panic(err)
+		}
+		ii, _, err := image.Decode(f)
+		if err != nil {
+			panic(err)
+		}
+		f.Close()
+
+		i := image.NewRGBA(ii.Bounds())
+		draw.Draw(i, i.Rect, ii, ii.Bounds().Min, draw.Src)
+
+		im := &img{
+			filename:		fn,
+			data:			i.Pix,
+			width:		i.Rect.Dx(),
+			height:		i.Rect.Dy(),
+			stride:		i.Stride,
+		}
+		images = append(images, im)
+	}
+
+	fmt.Println("// auto-generated by images/gen.go")
+	fmt.Println("#include \"test.h\"")
+	fmt.Println()
+	for i, im := range images {
+		fmt.Printf("static const uint8_t dat%d[] = {", i)
+		for j := 0; j < len(im.data); j++ {
+			if (j % 16) == 0 {
+				fmt.Printf("\n\t")
+			} else {
+				fmt.Printf(" ")
+			}
+			fmt.Printf("0x%02X,", im.data[j])
+
+		}
+		fmt.Println("\n};")
+		fmt.Println()
+	}
+	fmt.Println("static const struct {")
+	fmt.Println("	const char *name;")
+	fmt.Println("	void *data;")
+	fmt.Println("	int width;")
+	fmt.Println("	int height;")
+	fmt.Println("	int stride;")
+	fmt.Println("} files[] = {")
+	for i, im := range images {
+		fmt.Printf("	{ %q, dat%d, %d, %d, %d },\n",
+			im.filename, i, im.width, im.height, im.stride)
+	}
+	fmt.Println("};")
+	fmt.Println()
+	fmt.Println("void appendImageNamed(uiImage *img, const char *name)")
+	fmt.Println("{")
+	fmt.Println("	int i;")
+	fmt.Println("")
+	fmt.Println("	i = 0;")
+	fmt.Println("	for (;;) {")
+	fmt.Println("		if (strcmp(name, files[i].name) == 0) {")
+	fmt.Println("			uiImageAppend(img, files[i].data, files[i].width, files[i].height, files[i].stride);")
+	fmt.Println("			return;")
+	fmt.Println("		}")
+	fmt.Println("		i++;")
+	fmt.Println("	}")
+	fmt.Println("}")
+	fmt.Println()
+}