From de37cd71fa288f1ba5bcd03d1e506801e4e63e7c Mon Sep 17 00:00:00 2001
From: foglar <sigma@goon.com>
Date: Tue, 27 May 2025 13:47:30 +0200
Subject: [PATCH] png kitty render

---
 term_image/render_image.go | 72 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 term_image/render_image.go

diff --git a/term_image/render_image.go b/term_image/render_image.go
new file mode 100644
index 0000000..7eade7e
--- /dev/null
+++ b/term_image/render_image.go
@@ -0,0 +1,72 @@
+package term_image
+
+import (
+	"bytes"
+	"encoding/base64"
+	"fmt"
+	"image"
+	"image/draw"
+	"image/png"
+	"os"
+)
+
+func LoadImage(filePath string) (image.Image, error) {
+	f, err := os.Open(filePath)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+	img, _, err := image.Decode(f)
+	return img, err
+}
+
+func EncodeImageToBase64RGBA(img image.Image) image.Image {
+	rgba := image.NewRGBA(img.Bounds())
+	draw.Draw(rgba, rgba.Bounds(), img, image.Point{0, 0}, draw.Src)
+	fmt.Print(rgba)
+	return rgba
+}
+func EncodeImageToBase64(img image.Image) (string, error) {
+	var buf bytes.Buffer
+	err := png.Encode(&buf, img)
+	if err != nil {
+		return "", fmt.Errorf("Error encodeing image: %w", err)
+	}
+
+	encoded := base64.StdEncoding.EncodeToString(buf.Bytes())
+	return encoded, nil
+}
+
+func RenderImage(filepath string, row int, col int) {
+	img, err := LoadImage(filepath)
+	if err != nil {
+		fmt.Printf("Error loading image: %v\n", err)
+		return
+	}
+
+	EncodeImageToBase64RGBA(img)
+	encoded, err := EncodeImageToBase64(img)
+
+	fmt.Printf("\033[s\033[%d;%dH", row, col)
+	chunk_size := 4096
+	pos := 0
+	for pos < len(encoded) {
+		fmt.Print("\033_G")
+		if pos == 0 {
+			fmt.Print("q=2,a=T,f=100,")
+		}
+		remaining := len(encoded) - pos
+		chunk_len := remaining
+		if remaining > chunk_size {
+			chunk_len = chunk_size
+		}
+		if pos+chunk_len < len(encoded) {
+			fmt.Print("m=1")
+		}
+		fmt.Printf(";%s", encoded[pos:][:chunk_len])
+		fmt.Print("\033\\")
+		pos += chunk_len
+	}
+	fmt.Print("\033[u")
+}
+