From 1f161e2217160b38ab913b9f40f0b4f507ba9daa Mon Sep 17 00:00:00 2001
From: mckaygerhard <mckaygerhard@gmail.com>
Date: Sun, 2 Jun 2024 00:10:16 -0400
Subject: [PATCH] Add `porting::getTotalSystemMemory()` function

* becouse Convert textures to (A1)R5G6B5 format on low memory device
  tune up the commit 03737c4e9baeae7087ff986cbb901c64d312e8a6
* backported from https://github.com/MultiCraft/MultiCraft/commit/3bb240919ac68d58782453cd3cbab727f94643af
---
 src/client/client.cpp   | 12 +++++-------
 src/defaultsettings.cpp |  2 +-
 src/porting.cpp         | 16 +++++++++++++++-
 src/porting.h           |  6 ++++++
 4 files changed, 27 insertions(+), 9 deletions(-)

diff --git a/src/client/client.cpp b/src/client/client.cpp
index 5eb2e54de..ce0357fde 100644
--- a/src/client/client.cpp
+++ b/src/client/client.cpp
@@ -59,9 +59,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "game.h"
 #include "chatmessage.h"
 #include "translation.h"
-#ifdef _IRR_COMPILE_WITH_SDL_DEVICE_
-#include <SDL.h>
-#endif
 
 extern gui::IGUIEnvironment* guienv;
 
@@ -696,10 +693,9 @@ bool Client::loadMedia(const std::string &data, const std::string &filename,
 			rfile->drop();
 			return false;
 		}
-
-#ifdef _IRR_COMPILE_WITH_SDL_DEVICE_
-		if (SDL_GetSystemRAM() < 2048) {
-			core::dimension2du dimensions = img->getDimension();
+#if IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR >= 9
+		float memoryMax = porting::getTotalSystemMemory() / 1024;
+		if (memoryMax <= 2) {
 			irr::video::ECOLOR_FORMAT format = img->getColorFormat();
 			irr::video::ECOLOR_FORMAT new_format = irr::video::ECF_UNKNOWN;
 
@@ -723,6 +719,7 @@ bool Client::loadMedia(const std::string &data, const std::string &filename,
 			}
 
 			if (new_format != irr::video::ECF_UNKNOWN) {
+				core::dimension2du dimensions = img->getDimension();
 				irr::video::IImage* converted_img = vdrv->createImage(new_format, dimensions);
 				img->copyTo(converted_img, core::position2d<s32>(0, 0));
 				img->drop();
@@ -730,6 +727,7 @@ bool Client::loadMedia(const std::string &data, const std::string &filename,
 			}
 		}
 #endif
+
 		m_tsrc->insertSourceImage(filename, img);
 		img->drop();
 		rfile->drop();
diff --git a/src/defaultsettings.cpp b/src/defaultsettings.cpp
index 7305161d5..3628d00f1 100644
--- a/src/defaultsettings.cpp
+++ b/src/defaultsettings.cpp
@@ -548,7 +548,7 @@ void set_default_settings()
 
 	// Set the optimal settings depending on the memory size [Android] | model [iOS]
 #ifdef __ANDROID__
-	float memoryMax = SDL_GetSystemRAM() / 1024;
+	float memoryMax = porting::getTotalSystemMemory() / 1024;
 
 	if (memoryMax < 2) {
 		// minimal settings for less than 2GB RAM
diff --git a/src/porting.cpp b/src/porting.cpp
index 28627f838..43bc1368e 100644
--- a/src/porting.cpp
+++ b/src/porting.cpp
@@ -57,7 +57,11 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #endif
 
 #if defined(__HAIKU__)
-        #include <FindDirectory.h>
+	#include <FindDirectory.h>
+#endif
+
+#ifdef _IRR_COMPILE_WITH_SDL_DEVICE_
+	#include <SDL.h>
 #endif
 
 #include "config.h"
@@ -749,6 +753,16 @@ std::string getSecretKey(const std::string &key)
 }
 #endif
 
+float getTotalSystemMemory()
+{
+#if defined(_IRR_COMPILE_WITH_SDL_DEVICE_)
+	static const float retval = SDL_GetSystemRAM();
+	return retval;
+#else
+	return 0;
+#endif
+}
+
 bool open_directory(const std::string &path)
 {
 	if (!fs::IsDir(path)) {
diff --git a/src/porting.h b/src/porting.h
index bf97c2ad7..29d3dfed4 100644
--- a/src/porting.h
+++ b/src/porting.h
@@ -362,6 +362,12 @@ bool open_url(const std::string &url);
 std::string getSecretKey(const std::string &key);
 #endif
 
+/**
+ * Get total device memory
+ */
+
+float getTotalSystemMemory();
+
 bool open_directory(const std::string &path);
 
 } // namespace porting