From 3042fcb8cde6587857bd3bad8120c65cc332a545 Mon Sep 17 00:00:00 2001
From: CrispyPin <crispin@tasa.se>
Date: Fri, 25 Oct 2024 17:34:29 +0200
Subject: [PATCH] cleanup

---
 showimage.odin | 41 ++++++++++++++++++-----------------------
 1 file changed, 18 insertions(+), 23 deletions(-)

diff --git a/showimage.odin b/showimage.odin
index 4c284b1..5fc4cdd 100644
--- a/showimage.odin
+++ b/showimage.odin
@@ -1,23 +1,21 @@
 package showimage
 
 import "core:os"
-import s "core:strings"
+import "core:strings"
 import rl "vendor:raylib"
 
-path: string
 tex: ^rl.Texture
 zoom: f32 = 1
 offset: [2]f32
 
 main :: proc() {
-	config: rl.ConfigFlags = { .WINDOW_RESIZABLE }
 	rl.InitWindow(800, 600, "showimage")
-	rl.SetWindowState(config)
+	rl.SetWindowState({ .WINDOW_RESIZABLE })
+	rl.SetTargetFPS(60)
 
 	if len(os.args) > 1 {
-		path = os.args[1]
-		t := rl.LoadTexture(s.clone_to_cstring(path))
-		tex = &t
+		path := strings.clone_to_cstring(os.args[1])
+		tex = new_clone(rl.LoadTexture(path))
 		reset_zoom()
 	}
 
@@ -45,20 +43,17 @@ main :: proc() {
 	rl.CloseWindow()
 }
 
+zoom_to_power :: proc(size: i32, max: i32) -> i32 {
+	fit: i32 = 1
+	for fit * size < max {
+		fit *= 2
+	}
+	return fit / 2
+}
+
 reset_zoom :: proc() {
-	screen_width := rl.GetRenderWidth()
-	fit_x: i32 = 1
-	for fit_x * tex.width < screen_width {
-		fit_x *= 2
-	}
-	fit_x /= 2
-
-	screen_height := rl.GetRenderHeight()
-	fit_y: i32 = 1
-	for fit_y * tex.height < screen_height {
-		fit_y *= 2
-	}
-	fit_y /= 2
-
-	zoom = f32(min(fit_x, fit_y))
-}
\ No newline at end of file
+	zoom = f32(min(
+		zoom_to_power(tex.width, rl.GetRenderWidth()),
+		zoom_to_power(tex.height, rl.GetRenderHeight()),
+	))
+}