From 23f818078fa4c9030e1469bd371eaa541e1c5b43 Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Wed, 8 Mar 2023 22:24:49 +0300
Subject: [PATCH] Fix gfx::memory_usage(texture)

---
 libs/gfx/include/psemek/gfx/texture.hpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libs/gfx/include/psemek/gfx/texture.hpp b/libs/gfx/include/psemek/gfx/texture.hpp
index c97ae50f..5ddb343d 100644
--- a/libs/gfx/include/psemek/gfx/texture.hpp
+++ b/libs/gfx/include/psemek/gfx/texture.hpp
@@ -610,7 +610,10 @@ namespace psemek::gfx
 	template <std::size_t D, GLenum Target>
 	std::size_t memory_usage(basic_texture<D, Target> const & texture)
 	{
-		return texture.width() * texture.height() * texture.depth() * pixel_size(texture.internal_format());
+		auto size = texture.width() * texture.height() * texture.depth();
+		if (size == 0)
+			return 0;
+		return size * pixel_size(texture.internal_format());
 	}
 
 }