From 6d5a01921c9d4bceab44bb99d9ad587018d666fc Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Sun, 26 Feb 2023 20:08:59 +0300
Subject: [PATCH] Remember memory size in gfx::buffer

---
 libs/gfx/include/psemek/gfx/buffer.hpp | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/libs/gfx/include/psemek/gfx/buffer.hpp b/libs/gfx/include/psemek/gfx/buffer.hpp
index e13d5fc5..45ea4959 100644
--- a/libs/gfx/include/psemek/gfx/buffer.hpp
+++ b/libs/gfx/include/psemek/gfx/buffer.hpp
@@ -21,8 +21,10 @@ namespace psemek::gfx
 
 		basic_buffer(basic_buffer && other)
 			: id_{other.id_}
+			, size_{other.size_}
 		{
 			other.id_ = 0;
+			other.size_ = 0;
 		}
 
 		basic_buffer & operator = (basic_buffer && other)
@@ -31,8 +33,10 @@ namespace psemek::gfx
 				return *this;
 
 			reset();
-			id_ = std::move(other.id_);
+			id_ = other.id_;
+			size_ = other.size_;
 			other.id_ = 0;
+			other.size_ = 0;
 			return *this;
 		}
 
@@ -68,12 +72,14 @@ namespace psemek::gfx
 			if (id_)
 				gl::DeleteBuffers(1, &id_);
 			id_ = 0;
+			size_ = 0;
 		}
 
 		void load(void const * data, std::size_t size, GLenum usage = gl::STREAM_DRAW)
 		{
 			bind();
 			gl::BufferData(Target, size, data, usage);
+			size_ = size;
 		}
 
 		template <typename T>
@@ -142,6 +148,11 @@ namespace psemek::gfx
 			load_subdata(offset, data.data(), data.size());
 		}
 
+		std::size_t size() const
+		{
+			return size_;
+		}
+
 		template <typename T>
 		std::shared_ptr<T[]> map()
 		{
@@ -159,6 +170,7 @@ namespace psemek::gfx
 
 	private:
 		GLuint id_ = 0;
+		std::size_t size_ = 0;
 		std::weak_ptr<void> mapped_;
 
 		explicit basic_buffer(std::nullptr_t)