Merge branch 'master' into patch-2

.github/workflows/build.yml

@@ -8,16 +8,13 @@ on:
 jobs:
 
   linux-gl:
-    runs-on: ubuntu-latest
-    container:
-      image: ubuntu:bionic
-      env: { LANG: "C.UTF-8" }
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v3
       - name: Install deps
         run: |
-          apt-get update
-          apt-get install g++ cmake libxi-dev libgl1-mesa-dev libpng-dev libjpeg-dev zlib1g-dev -qyy
+          sudo apt-get update
+          sudo apt-get install g++ cmake libxi-dev libgl1-mesa-dev libpng-dev libjpeg-dev zlib1g-dev -qyy
 
       - name: Build
         run: |
@@ -39,16 +36,14 @@ jobs:
           path: ./irrlicht-linux.tar.gz
 
   linux-gles:
-    runs-on: ubuntu-latest
-    container:
-      image: ubuntu:bionic
-      env: { LANG: "C.UTF-8" }
+    # Xvfb test is broken on 20.04 for unknown reasons (not our bug)
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v3
       - name: Install deps
         run: |
-          apt-get update
-          apt-get install g++ cmake libxi-dev libgles2-mesa-dev libpng-dev libjpeg-dev zlib1g-dev xvfb -qyy
+          sudo apt-get update
+          sudo apt-get install g++ cmake libxi-dev libgles2-mesa-dev libpng-dev libjpeg-dev zlib1g-dev xvfb -qyy
 
       - name: Build
         run: |
@@ -66,16 +61,13 @@ jobs:
           LIBGL_ALWAYS_SOFTWARE=true xvfb-run ./AutomatedTest ogles2
 
   linux-sdl:
-    runs-on: ubuntu-latest
-    container:
-      image: ubuntu:jammy
-      env: { LANG: "C.UTF-8" }
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v3
       - name: Install deps
         run: |
-          apt-get update
-          apt-get install g++ cmake libsdl2-dev libpng-dev libjpeg-dev zlib1g-dev -qyy
+          sudo apt-get update
+          sudo apt-get install g++ cmake libsdl2-dev libpng-dev libjpeg-dev zlib1g-dev -qyy
 
       - name: Build
         run: |
@@ -88,16 +80,14 @@ jobs:
           ./AutomatedTest null
 
   linux-sdl-gl3:
-    runs-on: ubuntu-latest
-    container:
-      image: ubuntu:jammy
-      env: { LANG: "C.UTF-8" }
+    # Xvfb test is broken on 20.04 for unknown reasons (not our bug)
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v3
       - name: Install deps
         run: |
-          apt-get update
-          apt-get install g++ cmake libsdl2-dev libpng-dev libjpeg-dev zlib1g-dev xvfb -qyy
+          sudo apt-get update
+          sudo apt-get install g++ cmake libsdl2-dev libpng-dev libjpeg-dev zlib1g-dev xvfb -qyy
 
       - name: Build
         run: |
@@ -115,16 +105,13 @@ jobs:
           LIBGL_ALWAYS_SOFTWARE=true xvfb-run ./AutomatedTest opengl3
 
   linux-sdl-gles2:
-    runs-on: ubuntu-latest
-    container:
-      image: ubuntu:jammy
-      env: { LANG: "C.UTF-8" }
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v3
       - name: Install deps
         run: |
-          apt-get update
-          apt-get install g++ cmake libsdl2-dev libpng-dev libjpeg-dev zlib1g-dev xvfb -qyy
+          sudo apt-get update
+          sudo apt-get install g++ cmake libsdl2-dev libpng-dev libjpeg-dev zlib1g-dev xvfb -qyy
 
       - name: Build
         run: |
@@ -190,6 +177,20 @@ jobs:
         run: |
           ./bin/OSX/AutomatedTest null
 
+  macos-sdl:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install deps
+        run: |
+          brew update
+          brew install cmake libpng jpeg sdl2
+
+      - name: Build
+        run: |
+          cmake . -DCMAKE_FIND_FRAMEWORK=LAST -DBUILD_EXAMPLES=1 -DUSE_SDL2=1
+          make -j3
+
   msvc:
     name: VS 2019 ${{ matrix.config.arch }} ${{ matrix.sdl.label }}
     runs-on: windows-2019
@@ -257,3 +258,46 @@ jobs:
         with:
           name: msvc-${{ matrix.config.arch }}
           path: artifact/
+
+  android:
+    name: Android ${{ matrix.arch }}
+    runs-on: ubuntu-20.04
+    env:
+       ndk_version: "r25c"
+       ANDROID_NDK: ${{ github.workspace }}/android-ndk
+    strategy:
+      matrix:
+        arch: [armeabi-v7a, arm64-v8a, x86, x86_64]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Install deps
+        run: |
+          sudo rm /var/lib/man-db/auto-update
+          sudo apt-get update
+          sudo apt-get install -qyy wget unzip zip gcc-multilib make cmake
+
+      - name: Cache NDK
+        id: cache-ndk
+        uses: actions/cache@v3
+        with:
+          key: android-ndk-${{ env.ndk_version }}-linux
+          path: ${{ env.ANDROID_NDK }}
+
+      - name: Install NDK
+        run: |
+          wget --progress=bar:force "http://dl.google.com/android/repository/android-ndk-${ndk_version}-linux.zip"
+          unzip -q "android-ndk-${ndk_version}-linux.zip"
+          rm "android-ndk-${ndk_version}-linux.zip"
+          mv "android-ndk-${ndk_version}" "${ANDROID_NDK}"
+        if: ${{ steps.cache-ndk.outputs.cache-hit != 'true' }}
+
+      - name: Build
+        run: ./scripts/ci-build-android.sh ${{ matrix.arch }}
+
+      #- name: Upload Artifact
+      #  uses: actions/upload-artifact@v3
+      #  with:
+      #    name: irrlicht-android-${{ matrix.arch }}
+      #    path: ${{ runner.temp }}/pkg/${{ matrix.arch }}

CMakeLists.txt

@@ -1,13 +1,6 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.12)
 
-# >=3.9 enables IPO; >=3.11 prefers GLVND
-if(${CMAKE_VERSION} VERSION_LESS 3.11)
-	cmake_policy(VERSION ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION})
-else()
-	cmake_policy(VERSION 3.11)
-endif()
-
-set(IRRLICHTMT_REVISION 13)
+set(IRRLICHTMT_REVISION 15)
 
 project(Irrlicht
 	VERSION 1.9.0.${IRRLICHTMT_REVISION}

Config.cmake.in

@@ -1,5 +1,11 @@
 @PACKAGE_INIT@
 
+include(CMakeFindDependencyMacro)
+
 if(NOT TARGET IrrlichtMt::IrrlichtMt)
+	# private dependency only explicitly needed with static libs
+	if(@USE_SDL2@ AND NOT @BUILD_SHARED_LIBS@)
+		find_dependency(SDL2)
+	endif()
 	include("${CMAKE_CURRENT_LIST_DIR}/IrrlichtMtTargets.cmake")
 endif()

include/EDriverFeatures.h

@@ -121,21 +121,6 @@ namespace video
 		//! Support for texture coord transformation via texture matrix
 		EVDF_TEXTURE_MATRIX,
 
-		//! Support for DXTn compressed textures.
-		EVDF_TEXTURE_COMPRESSED_DXT,
-
-		//! Support for PVRTC compressed textures.
-		EVDF_TEXTURE_COMPRESSED_PVRTC,
-
-		//! Support for PVRTC2 compressed textures.
-		EVDF_TEXTURE_COMPRESSED_PVRTC2,
-
-		//! Support for ETC1 compressed textures.
-		EVDF_TEXTURE_COMPRESSED_ETC1,
-
-		//! Support for ETC2 compressed textures.
-		EVDF_TEXTURE_COMPRESSED_ETC2,
-
 		//! Support for cube map textures.
 		EVDF_TEXTURE_CUBEMAP,
 

include/IImage.h

@@ -362,28 +362,6 @@ public:
 			return 24;
 		case ECF_A8R8G8B8:
 			return 32;
-		case ECF_DXT1:
-			return 16;
-		case ECF_DXT2:
-		case ECF_DXT3:
-		case ECF_DXT4:
-		case ECF_DXT5:
-			return 32;
-		case ECF_PVRTC_RGB2:
-			return 12;
-		case ECF_PVRTC_ARGB2:
-		case ECF_PVRTC2_ARGB2:
-			return 16;
-		case ECF_PVRTC_RGB4:
-			return 24;
-		case ECF_PVRTC_ARGB4:
-		case ECF_PVRTC2_ARGB4:
-			return 32;
-		case ECF_ETC1:
-		case ECF_ETC2_RGB:
-			return 24;
-		case ECF_ETC2_ARGB:
-			return 32;
 		case ECF_D16:
 			return 16;
 		case ECF_D32:
@@ -418,74 +396,17 @@ public:
 	//! calculate image data size in bytes for selected format, width and height.
 	static u32 getDataSizeFromFormat(ECOLOR_FORMAT format, u32 width, u32 height)
 	{
-		u32 imageSize = 0;
-
-		switch (format)
-		{
-		case ECF_DXT1:
-			imageSize = ((width + 3) / 4) * ((height + 3) / 4) * 8;
-			break;
-		case ECF_DXT2:
-		case ECF_DXT3:
-		case ECF_DXT4:
-		case ECF_DXT5:
-			imageSize = ((width + 3) / 4) * ((height + 3) / 4) * 16;
-			break;
-		case ECF_PVRTC_RGB2:
-		case ECF_PVRTC_ARGB2:
-			imageSize = (core::max_<u32>(width, 16) * core::max_<u32>(height, 8) * 2 + 7) / 8;
-			break;
-		case ECF_PVRTC_RGB4:
-		case ECF_PVRTC_ARGB4:
-			imageSize = (core::max_<u32>(width, 8) * core::max_<u32>(height, 8) * 4 + 7) / 8;
-			break;
-		case ECF_PVRTC2_ARGB2:
-			imageSize = core::ceil32(width / 8.0f) * core::ceil32(height / 4.0f) * 8;
-			break;
-		case ECF_PVRTC2_ARGB4:
-		case ECF_ETC1:
-		case ECF_ETC2_RGB:
-			imageSize = core::ceil32(width / 4.0f) * core::ceil32(height / 4.0f) * 8;
-			break;
-		case ECF_ETC2_ARGB:
-			imageSize = core::ceil32(width / 4.0f) * core::ceil32(height / 4.0f) * 16;
-			break;
-		default: // uncompressed formats
-			imageSize = getBitsPerPixelFromFormat(format) / 8 * width;
-			imageSize *= height;
-			break;
-		}
+		// non-compressed formats
+		u32 imageSize = getBitsPerPixelFromFormat(format) / 8 * width;
+		imageSize *= height;
 
 		return imageSize;
 	}
 
-// Define to check for all compressed image formats cases in a switch
-#define IRR_CASE_IIMAGE_COMPRESSED_FORMAT\
-	case ECF_DXT1:\
-	case ECF_DXT2:\
-	case ECF_DXT3:\
-	case ECF_DXT4:\
-	case ECF_DXT5:\
-	case ECF_PVRTC_RGB2:\
-	case ECF_PVRTC_ARGB2:\
-	case ECF_PVRTC2_ARGB2:\
-	case ECF_PVRTC_RGB4:\
-	case ECF_PVRTC_ARGB4:\
-	case ECF_PVRTC2_ARGB4:\
-	case ECF_ETC1:\
-	case ECF_ETC2_RGB:\
-	case ECF_ETC2_ARGB:
-
 	//! check if this is compressed color format
 	static bool isCompressedFormat(const ECOLOR_FORMAT format)
 	{
-		switch(format)
-		{
-			IRR_CASE_IIMAGE_COMPRESSED_FORMAT
-				return true;
-			default:
-				return false;
-		}
+		return false;
 	}
 
 	//! check if the color format is only viable for depth/stencil textures
@@ -523,22 +444,6 @@ public:
 		return false;
 	}
 
-#if defined(PATCH_SUPERTUX_8_0_1_with_1_9_0)
-	static bool isRenderTargetOnlyFormat(const ECOLOR_FORMAT format)
-	{
-		switch (format)
-		{
-		case ECF_A1R5G5B5:
-		case ECF_R5G6B5:
-		case ECF_R8G8B8:
-		case ECF_A8R8G8B8:
-			return false;
-		default:
-			return true;
-		}
-	}
-#endif
-
 protected:
 	ECOLOR_FORMAT Format;
 	core::dimension2d<u32> Size;

include/ISceneNode.h

@@ -14,7 +14,9 @@
 #include "aabbox3d.h"
 #include "matrix4.h"
 #include "IAttributes.h"
+
 #include <list>
+#include <optional>
 
 namespace irr
 {
@@ -116,23 +118,14 @@ namespace scene
 
 		//! Returns the name of the node.
 		/** \return Name as character string. */
-		virtual const c8* getName() const
+		virtual const std::optional<std::string> &getName() const
 		{
-			return Name.c_str();
+			return Name;
 		}
 
-
 		//! Sets the name of the node.
 		/** \param name New name of the scene node. */
-		virtual void setName(const c8* name)
-		{
-			Name = name;
-		}
-
-
-		//! Sets the name of the node.
-		/** \param name New name of the scene node. */
-		virtual void setName(const core::stringc& name)
+		virtual void setName(const std::optional<std::string> &name)
 		{
 			Name = name;
 		}
@@ -275,31 +268,31 @@ namespace scene
 
 				child->grab();
 				child->remove(); // remove from old parent
-				Children.push_back(child);
+				// Note: This iterator is not invalidated until we erase it.
+				child->ThisIterator = Children.insert(Children.end(), child);
 				child->Parent = this;
 			}
 		}
 
 
 		//! Removes a child from this scene node.
-		/** If found in the children list, the child pointer is also
-		dropped and might be deleted if no other grab exists.
+		/**
 		\param child A pointer to the child which shall be removed.
 		\return True if the child was removed, and false if not,
-		e.g. because it couldn't be found in the children list. */
+		e.g. because it belongs to a different parent or no parent. */
 		virtual bool removeChild(ISceneNode* child)
 		{
-			ISceneNodeList::iterator it = Children.begin();
-			for (; it != Children.end(); ++it)
-				if ((*it) == child)
-				{
-					(*it)->Parent = 0;
-					(*it)->drop();
-					Children.erase(it);
-					return true;
-				}
+			if (child->Parent != this)
+				return false;
 
-			return false;
+			// The iterator must be set since the parent is not null.
+			_IRR_DEBUG_BREAK_IF(!child->ThisIterator.has_value());
+			auto it = *child->ThisIterator;
+			child->ThisIterator = std::nullopt;
+			child->Parent = nullptr;
+			child->drop();
+			Children.erase(it);
+			return true;
 		}
 
 
@@ -309,13 +302,11 @@ namespace scene
 		*/
 		virtual void removeAll()
 		{
-			ISceneNodeList::iterator it = Children.begin();
-			for (; it != Children.end(); ++it)
-			{
-				(*it)->Parent = 0;
-				(*it)->drop();
+			for (auto &child : Children) {
+				child->Parent = nullptr;
+				child->ThisIterator = std::nullopt;
+				child->drop();
 			}
-
 			Children.clear();
 		}
 
@@ -508,10 +499,8 @@ namespace scene
 			grab();
 			remove();
 
-			Parent = newParent;
-
-			if (Parent)
-				Parent->addChild(this);
+			if (newParent)
+				newParent->addChild(this);
 
 			drop();
 		}
@@ -604,7 +593,7 @@ namespace scene
 		}
 
 		//! Name of the scene node.
-		core::stringc Name;
+		std::optional<std::string> Name;
 
 		//! Absolute transformation of the node.
 		core::matrix4 AbsoluteTransformation;
@@ -618,12 +607,15 @@ namespace scene
 		//! Relative scale of the scene node.
 		core::vector3df RelativeScale;
 
-		//! Pointer to the parent
-		ISceneNode* Parent;
-
 		//! List of all children of this node
 		std::list<ISceneNode*> Children;
 
+		//! Iterator pointing to this node in the parent's child list.
+		std::optional<ISceneNodeList::iterator> ThisIterator;
+
+		//! Pointer to the parent
+		ISceneNode* Parent;
+
 		//! Pointer to the scene manager
 		ISceneManager* SceneManager;
 

include/ISkinnedMesh.h

@@ -10,6 +10,8 @@
 #include "IAnimatedMesh.h"
 #include "SSkinMeshBuffer.h"
 
+#include <optional>
+
 namespace irr
 {
 namespace scene
@@ -41,12 +43,12 @@ namespace scene
 		/** \param number: Zero based index of joint. The last joint
 		has the number getJointCount()-1;
 		\return Name of joint and null if an error happened. */
-		virtual const c8* getJointName(u32 number) const = 0;
+		virtual const std::optional<std::string> &getJointName(u32 number) const = 0;
 
 		//! Gets a joint number from its name
 		/** \param name: Name of the joint.
-		\return Number of the joint or -1 if not found. */
-		virtual s32 getJointNumber(const c8* name) const = 0;
+		\return Number of the joint or std::nullopt if not found. */
+		virtual std::optional<u32> getJointNumber(const std::string &name) const = 0;
 
 		//! Use animation from another mesh
 		/** The animation is linked (not copied) based on joint names
@@ -136,7 +138,7 @@ namespace scene
 			}
 
 			//! The name of this joint
-			core::stringc Name;
+			std::optional<std::string> Name;
 
 			//! Local matrix of this joint
 			core::matrix4 LocalMatrix;

include/ITexture.h

@@ -292,11 +292,6 @@ public:
 		{
 		case ECF_A8R8G8B8:
 		case ECF_A1R5G5B5:
-		case ECF_DXT1:
-		case ECF_DXT2:
-		case ECF_DXT3:
-		case ECF_DXT4:
-		case ECF_DXT5:
 		case ECF_A16B16G16R16F:
 		case ECF_A32B32G32R32F:
 			status = true;

include/IrrCompileConfig.h

@@ -5,8 +5,8 @@
 #pragma once
 
 //! Identifies the IrrlichtMt fork customized for the Minetest engine
-#define IRRLICHT_VERSION_MT_REVISION 13
-#define IRRLICHT_VERSION_MT "mt13"
+#define IRRLICHT_VERSION_MT_REVISION 15
+#define IRRLICHT_VERSION_MT "mt15"
 
 //! Irrlicht SDK Version
 #define IRRLICHT_VERSION_MAJOR 1

include/IrrlichtDevice.h

@@ -177,6 +177,13 @@ namespace irr
 		/** \return True if window is fullscreen. */
 		virtual bool isFullscreen() const = 0;
 
+		//! Checks if the window could possibly be visible.
+		//! Currently, this only returns false when the activity is stopped on
+		//! Android. Note that for Android activities, "stopped" means something
+		//! different than you might expect (and also something different than
+		//! "paused"). Read the Android lifecycle documentation.
+		virtual bool isWindowVisible() const { return true; };
+
 		//! Get the current color format of the window
 		/** \return Color format of the window. */
 		virtual video::ECOLOR_FORMAT getColorFormat() const = 0;

include/SColor.h

@@ -37,50 +37,6 @@ namespace video
 		//! Warning: This tends to be BGRA in memory (it's ARGB on file, but with usual big-endian memory it's flipped)
 		ECF_A8R8G8B8,
 
-		/** Compressed image formats. **/
-
-		//! DXT1 color format.
-		ECF_DXT1,
-
-		//! DXT2 color format.
-		ECF_DXT2,
-
-		//! DXT3 color format.
-		ECF_DXT3,
-
-		//! DXT4 color format.
-		ECF_DXT4,
-
-		//! DXT5 color format.
-		ECF_DXT5,
-
-		//! PVRTC RGB 2bpp.
-		ECF_PVRTC_RGB2,
-
-		//! PVRTC ARGB 2bpp.
-		ECF_PVRTC_ARGB2,
-
-		//! PVRTC RGB 4bpp.
-		ECF_PVRTC_RGB4,
-
-		//! PVRTC ARGB 4bpp.
-		ECF_PVRTC_ARGB4,
-
-		//! PVRTC2 ARGB 2bpp.
-		ECF_PVRTC2_ARGB2,
-
-		//! PVRTC2 ARGB 4bpp.
-		ECF_PVRTC2_ARGB4,
-
-		//! ETC1 RGB.
-		ECF_ETC1,
-
-		//! ETC2 RGB.
-		ECF_ETC2_RGB,
-
-		//! ETC2 ARGB.
-		ECF_ETC2_ARGB,
-
 		/** The following formats may only be used for render target textures. */
 
 		/** Floating point formats. */
@@ -139,20 +95,6 @@ namespace video
 		"R5G6B5",
 		"R8G8B8",
 		"A8R8G8B8",
-		"DXT1",
-		"DXT2",
-		"DXT3",
-		"DXT4",
-		"DXT5",
-		"PVRTC_RGB2",
-		"PVRTC_ARGB2",
-		"PVRTC_RGB4",
-		"PVRTC_ARGB4",
-		"PVRTC2_ARGB2",
-		"PVRTC2_ARGB4",
-		"ETC1",
-		"ETC2_RGB",
-		"ETC2_ARGB",
 		"R16F",
 		"G16R16F",
 		"A16B16G16R16F",

include/irrMath.h

@@ -9,6 +9,7 @@
 #include <float.h>
 #include <stdlib.h> // for abs() etc.
 #include <limits.h> // For INT_MAX / UINT_MAX
+#include <type_traits>
 
 namespace irr
 {
@@ -17,9 +18,6 @@ namespace core
 
 	//! Rounding error constant often used when comparing f32 values.
 
-	const s32 ROUNDING_ERROR_S32 = 0;
-
-	const s64 ROUNDING_ERROR_S64 = 0;
 	const f32 ROUNDING_ERROR_f32 = 0.000001f;
 	const f64 ROUNDING_ERROR_f64 = 0.00000001;
 
@@ -170,30 +168,6 @@ namespace core
 		return ROUNDING_ERROR_f64;
 	}
 
-	template <>
-	inline s32 roundingError()
-	{
-		return ROUNDING_ERROR_S32;
-	}
-
-	template <>
-	inline u32 roundingError()
-	{
-		return ROUNDING_ERROR_S32;
-	}
-
-	template <>
-	inline s64 roundingError()
-	{
-		return ROUNDING_ERROR_S64;
-	}
-
-	template <>
-	inline u64 roundingError()
-	{
-		return ROUNDING_ERROR_S64;
-	}
-
 	template <class T>
 	inline T relativeErrorFactor()
 	{
@@ -212,13 +186,19 @@ namespace core
 		return 8;
 	}
 
-	//! returns if a equals b, taking possible rounding errors into account
-	template <class T>
-	inline bool equals(const T a, const T b, const T tolerance = roundingError<T>())
+	//! returns if a equals b, for types without rounding errors
+	template <class T, std::enable_if_t<std::is_integral<T>::value, bool> = true>
+	inline bool equals(const T a, const T b)
 	{
-		return (a + tolerance >= b) && (a - tolerance <= b);
+		return a == b;
 	}
 
+	//! returns if a equals b, taking possible rounding errors into account
+	template <class T, std::enable_if_t<std::is_floating_point<T>::value, bool> = true>
+	inline bool equals(const T a, const T b, const T tolerance = roundingError<T>())
+	{
+		return abs(a - b) <= tolerance;
+	}
 
 	//! returns if a equals b, taking relative error in form of factor
 	//! this particular function does not involve any division.

include/mt_opengl.h

@@ -705,7 +705,6 @@ private:
 	typedef void (APIENTRYP PFNGLMULTIDRAWARRAYSINDIRECTCOUNTPROC_MT) (GLenum mode, const void * indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
 	typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSINDIRECTCOUNTPROC_MT) (GLenum mode, GLenum type, const void * indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
 	typedef void (APIENTRYP PFNGLPOLYGONOFFSETCLAMPPROC_MT) (GLfloat factor, GLfloat units, GLfloat clamp);
-	typedef void (APIENTRYP PFNGLGENPERFMONITORSEXPROC_MT) (GLsizei n, GLuint * monitors);
 	typedef void (APIENTRYP PFNGLPRIMITIVEBOUNDINGBOXPROC_MT) (GLfloat minX, GLfloat minY, GLfloat minZ, GLfloat minW, GLfloat maxX, GLfloat maxY, GLfloat maxZ, GLfloat maxW);
 	typedef GLuint64 (APIENTRYP PFNGLGETTEXTUREHANDLEPROC_MT) (GLuint texture);
 	typedef GLuint64 (APIENTRYP PFNGLGETTEXTURESAMPLERHANDLEPROC_MT) (GLuint texture, GLuint sampler);
@@ -781,9 +780,9 @@ public:
 	// Call this once after creating the context.
 	void LoadAllProcedures(irr::video::IContextManager *cmgr);
 	// Check if an extension is supported.
-	inline bool IsExtensionPresent(const std::string &ext)
+	inline bool IsExtensionPresent(const std::string &ext) const
 	{
-		return extensions.find(ext) != extensions.end();
+		return extensions.count(ext) > 0;
 	}
 
 	PFNGLCULLFACEPROC_MT CullFace = NULL;
@@ -1436,7 +1435,6 @@ public:
 	PFNGLMULTIDRAWARRAYSINDIRECTCOUNTPROC_MT MultiDrawArraysIndirectCount = NULL;
 	PFNGLMULTIDRAWELEMENTSINDIRECTCOUNTPROC_MT MultiDrawElementsIndirectCount = NULL;
 	PFNGLPOLYGONOFFSETCLAMPPROC_MT PolygonOffsetClamp = NULL;
-	PFNGLGENPERFMONITORSEXPROC_MT GenPerfMonitorsEX = NULL;
 	PFNGLPRIMITIVEBOUNDINGBOXPROC_MT PrimitiveBoundingBox = NULL;
 	PFNGLGETTEXTUREHANDLEPROC_MT GetTextureHandle = NULL;
 	PFNGLGETTEXTURESAMPLERHANDLEPROC_MT GetTextureSamplerHandle = NULL;
@@ -3020,6 +3018,16 @@ public:
 	static constexpr const GLenum TEXTURE_SRGB_DECODE = 0x8A48;
 	static constexpr const GLenum DECODE = 0x8A49;
 	static constexpr const GLenum SKIP_DECODE = 0x8A4A;
+	static constexpr const GLenum ALPHA8 = 0x803C;
+	static constexpr const GLenum LUMINANCE8 = 0x8040;
+	static constexpr const GLenum LUMINANCE8_ALPHA8 = 0x8045;
+	static constexpr const GLenum ALPHA32F = 0x8816;
+	static constexpr const GLenum LUMINANCE32F = 0x8818;
+	static constexpr const GLenum LUMINANCE_ALPHA32F = 0x8819;
+	static constexpr const GLenum ALPHA16F = 0x881C;
+	static constexpr const GLenum LUMINANCE16F = 0x881E;
+	static constexpr const GLenum LUMINANCE_ALPHA16F = 0x881F;
+	static constexpr const GLenum BGRA8 = 0x93A1;
 	static constexpr const GLenum INCLUSIVE = 0x8F10;
 	static constexpr const GLenum EXCLUSIVE = 0x8F11;
 	static constexpr const GLenum WINDOW_RECTANGLE = 0x8F12;
@@ -3044,10 +3052,7 @@ public:
 	static constexpr const GLenum GEOMETRY_LINKED_VERTICES_OUT = 0x8916;
 	static constexpr const GLenum GEOMETRY_LINKED_INPUT_TYPE = 0x8917;
 	static constexpr const GLenum GEOMETRY_LINKED_OUTPUT_TYPE = 0x8918;
-	static constexpr const GLenum ALPHA8 = 0x803C;
 	static constexpr const GLenum LUMINANCE4_ALPHA4 = 0x8043;
-	static constexpr const GLenum LUMINANCE8_ALPHA8 = 0x8045;
-	static constexpr const GLenum LUMINANCE8 = 0x8040;
 	static constexpr const GLenum FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET = 0x8CD4;
 	static constexpr const GLenum COMPRESSED_RGBA_ASTC_3x3x3 = 0x93C0;
 	static constexpr const GLenum COMPRESSED_RGBA_ASTC_4x3x3 = 0x93C1;
@@ -3070,7 +3075,6 @@ public:
 	static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5 = 0x93E8;
 	static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6 = 0x93E9;
 	static constexpr const GLenum INT_10_10_10_2 = 0x8DF7;
-	static constexpr const GLenum BGRA8 = 0x93A1;
 	static constexpr const GLenum MALI_PROGRAM_BINARY_ARM = 0x8F61;
 	static constexpr const GLenum MALI_SHADER_BINARY_ARM = 0x8F60;
 	static constexpr const GLenum FETCH_PER_SAMPLE_ARM = 0x8F65;
@@ -3080,8 +3084,37 @@ public:
 	static constexpr const GLenum SMAPHS_PROGRAM_BINARY_DMP = 0x9252;
 	static constexpr const GLenum DMP_PROGRAM_BINARY_DMP = 0x9253;
 	static constexpr const GLenum SHADER_BINARY_DMP = 0x9250;
+	static constexpr const GLenum SURFACE_COMPRESSION = 0x96C0;
+	static constexpr const GLenum SURFACE_COMPRESSION_FIXED_RATE_NONE = 0x96C1;
+	static constexpr const GLenum SURFACE_COMPRESSION_FIXED_RATE_DEFAULT = 0x96C2;
 	static constexpr const GLenum SAMPLER_EXTERNAL_2D_Y2Y = 0x8BE7;
 	static constexpr const GLenum GPU_DISJOINT = 0x8FBB;
+	static constexpr const GLenum SHADING_RATE_1X1_PIXELS = 0x96A6;
+	static constexpr const GLenum SHADING_RATE_1X2_PIXELS = 0x96A7;
+	static constexpr const GLenum SHADING_RATE_2X1_PIXELS = 0x96A8;
+	static constexpr const GLenum SHADING_RATE_2X2_PIXELS = 0x96A9;
+	static constexpr const GLenum SHADING_RATE_1X4_PIXELS = 0x96AA;
+	static constexpr const GLenum SHADING_RATE_4X1_PIXELS = 0x96AB;
+	static constexpr const GLenum SHADING_RATE_4X2_PIXELS = 0x96AC;
+	static constexpr const GLenum SHADING_RATE_2X4_PIXELS = 0x96AD;
+	static constexpr const GLenum SHADING_RATE_4X4_PIXELS = 0x96AE;
+	static constexpr const GLenum SHADING_RATE = 0x96D0;
+	static constexpr const GLenum SHADING_RATE_ATTACHMENT = 0x96D1;
+	static constexpr const GLenum FRAGMENT_SHADING_RATE_COMBINER_OP_KEEP = 0x96D2;
+	static constexpr const GLenum FRAGMENT_SHADING_RATE_COMBINER_OP_REPLACE = 0x96D3;
+	static constexpr const GLenum FRAGMENT_SHADING_RATE_COMBINER_OP_MIN = 0x96D4;
+	static constexpr const GLenum FRAGMENT_SHADING_RATE_COMBINER_OP_MAX = 0x96D5;
+	static constexpr const GLenum FRAGMENT_SHADING_RATE_COMBINER_OP_MUL = 0x96D6;
+	static constexpr const GLenum MIN_FRAGMENT_SHADING_RATE_ATTACHMENT_TEXEL_WIDTH = 0x96D7;
+	static constexpr const GLenum MAX_FRAGMENT_SHADING_RATE_ATTACHMENT_TEXEL_WIDTH = 0x96D8;
+	static constexpr const GLenum MIN_FRAGMENT_SHADING_RATE_ATTACHMENT_TEXEL_HEIGHT = 0x96D9;
+	static constexpr const GLenum MAX_FRAGMENT_SHADING_RATE_ATTACHMENT_TEXEL_HEIGHT = 0x96DA;
+	static constexpr const GLenum MAX_FRAGMENT_SHADING_RATE_ATTACHMENT_TEXEL_ASPECT_RATIO = 0x96DB;
+	static constexpr const GLenum MAX_FRAGMENT_SHADING_RATE_ATTACHMENT_LAYERS = 0x96DC;
+	static constexpr const GLenum FRAGMENT_SHADING_RATE_WITH_SHADER_DEPTH_STENCIL_WRITES_SUPPORTED = 0x96DD;
+	static constexpr const GLenum FRAGMENT_SHADING_RATE_WITH_SAMPLE_MASK_SUPPORTED = 0x96DE;
+	static constexpr const GLenum FRAGMENT_SHADING_RATE_ATTACHMENT_WITH_DEFAULT_FRAMEBUFFER_SUPPORTED = 0x96DF;
+	static constexpr const GLenum FRAGMENT_SHADING_RATE_NON_TRIVIAL_COMBINERS_SUPPORTED = 0x8F6F;
 	static constexpr const GLenum TEXTURE_TILING = 0x9580;
 	static constexpr const GLenum DEDICATED_MEMORY_OBJECT = 0x9581;
 	static constexpr const GLenum PROTECTED_MEMORY_OBJECT = 0x959B;
@@ -3136,12 +3169,19 @@ public:
 	static constexpr const GLenum COMPRESSED_SRGB_ALPHA_S3TC_DXT3 = 0x8C4E;
 	static constexpr const GLenum COMPRESSED_SRGB_ALPHA_S3TC_DXT5 = 0x8C4F;
 	static constexpr const GLenum TEXTURE_FORMAT_SRGB_OVERRIDE = 0x8FBF;
-	static constexpr const GLenum ALPHA32F = 0x8816;
-	static constexpr const GLenum LUMINANCE32F = 0x8818;
-	static constexpr const GLenum LUMINANCE_ALPHA32F = 0x8819;
-	static constexpr const GLenum ALPHA16F = 0x881C;
-	static constexpr const GLenum LUMINANCE16F = 0x881E;
-	static constexpr const GLenum LUMINANCE_ALPHA16F = 0x881F;
+	static constexpr const GLenum NUM_SURFACE_COMPRESSION_FIXED_RATES = 0x8F6E;
+	static constexpr const GLenum SURFACE_COMPRESSION_FIXED_RATE_1BPC = 0x96C4;
+	static constexpr const GLenum SURFACE_COMPRESSION_FIXED_RATE_2BPC = 0x96C5;
+	static constexpr const GLenum SURFACE_COMPRESSION_FIXED_RATE_3BPC = 0x96C6;
+	static constexpr const GLenum SURFACE_COMPRESSION_FIXED_RATE_4BPC = 0x96C7;
+	static constexpr const GLenum SURFACE_COMPRESSION_FIXED_RATE_5BPC = 0x96C8;
+	static constexpr const GLenum SURFACE_COMPRESSION_FIXED_RATE_6BPC = 0x96C9;
+	static constexpr const GLenum SURFACE_COMPRESSION_FIXED_RATE_7BPC = 0x96CA;
+	static constexpr const GLenum SURFACE_COMPRESSION_FIXED_RATE_8BPC = 0x96CB;
+	static constexpr const GLenum SURFACE_COMPRESSION_FIXED_RATE_9BPC = 0x96CC;
+	static constexpr const GLenum SURFACE_COMPRESSION_FIXED_RATE_10BPC = 0x96CD;
+	static constexpr const GLenum SURFACE_COMPRESSION_FIXED_RATE_11BPC = 0x96CE;
+	static constexpr const GLenum SURFACE_COMPRESSION_FIXED_RATE_12BPC = 0x96CF;
 	static constexpr const GLenum GCCSO_SHADER_BINARY_FJ = 0x9260;
 	static constexpr const GLenum STATE_RESTORE = 0x8BDC;
 	static constexpr const GLenum SHADER_BINARY_VIV = 0x8FC4;
@@ -3151,5 +3191,5 @@ public:
 	static constexpr const GLenum NONE = 0;
 };
 
-//Global GL procedures object.
+// Global GL procedures object.
 IRRLICHT_API extern OpenGLProcedures GL;

include/vector2d.h

@@ -75,47 +75,47 @@ public:
 		return *(&X+index);
 	}
 
-	//! sort in order X, Y. Equality with rounding tolerance.
+	//! sort in order X, Y.
 	bool operator<=(const vector2d<T>&other) const
 	{
-		return (X<other.X || core::equals(X, other.X)) ||
-				(core::equals(X, other.X) && (Y<other.Y || core::equals(Y, other.Y)));
+		return !(*this > other);
 	}
 
-	//! sort in order X, Y. Equality with rounding tolerance.
+	//! sort in order X, Y.
 	bool operator>=(const vector2d<T>&other) const
 	{
-		return (X>other.X || core::equals(X, other.X)) ||
-				(core::equals(X, other.X) && (Y>other.Y || core::equals(Y, other.Y)));
+		return !(*this < other);
 	}
 
-	//! sort in order X, Y. Difference must be above rounding tolerance.
+	//! sort in order X, Y.
 	bool operator<(const vector2d<T>&other) const
 	{
-		return (X<other.X && !core::equals(X, other.X)) ||
-				(core::equals(X, other.X) && Y<other.Y && !core::equals(Y, other.Y));
+		return X < other.X || (X == other.X && Y < other.Y);
 	}
 
-	//! sort in order X, Y. Difference must be above rounding tolerance.
+	//! sort in order X, Y.
 	bool operator>(const vector2d<T>&other) const
 	{
-		return (X>other.X && !core::equals(X, other.X)) ||
-				(core::equals(X, other.X) && Y>other.Y && !core::equals(Y, other.Y));
+		return X > other.X || (X == other.X && Y > other.Y);
 	}
 
-	bool operator==(const vector2d<T>& other) const { return equals(other); }
-	bool operator!=(const vector2d<T>& other) const { return !equals(other); }
+	bool operator==(const vector2d<T>& other) const {
+		return X == other.X && Y == other.Y;
+	}
+
+	bool operator!=(const vector2d<T>& other) const {
+		return !(*this == other);
+	}
 
 	// functions
 
 	//! Checks if this vector equals the other one.
 	/** Takes floating point rounding errors into account.
 	\param other Vector to compare with.
-	\param tolerance Epsilon value for both - comparing X and Y.
 	\return True if the two vector are (almost) equal, else false. */
-	bool equals(const vector2d<T>& other, const T tolerance = (T)ROUNDING_ERROR_f32 ) const
+	bool equals(const vector2d<T>& other) const
 	{
-		return core::equals(X, other.X, tolerance) && core::equals(Y, other.Y, tolerance);
+		return core::equals(X, other.X) && core::equals(Y, other.Y);
 	}
 
 	vector2d<T>& set(T nx, T ny) {X=nx; Y=ny; return *this; }

include/vector3d.h

@@ -68,57 +68,51 @@ namespace core
 			return *(&X+index);
 		}
 
-		//! sort in order X, Y, Z. Equality with rounding tolerance.
+		//! sort in order X, Y, Z.
 		bool operator<=(const vector3d<T>&other) const
 		{
-			return (X<other.X || core::equals(X, other.X)) ||
-					(core::equals(X, other.X) && (Y<other.Y || core::equals(Y, other.Y))) ||
-					(core::equals(X, other.X) && core::equals(Y, other.Y) && (Z<other.Z || core::equals(Z, other.Z)));
+			return !(*this > other);
 		}
 
-		//! sort in order X, Y, Z. Equality with rounding tolerance.
+		//! sort in order X, Y, Z.
 		bool operator>=(const vector3d<T>&other) const
 		{
-			return (X>other.X || core::equals(X, other.X)) ||
-					(core::equals(X, other.X) && (Y>other.Y || core::equals(Y, other.Y))) ||
-					(core::equals(X, other.X) && core::equals(Y, other.Y) && (Z>other.Z || core::equals(Z, other.Z)));
+			return !(*this < other);
 		}
 
-		//! sort in order X, Y, Z. Difference must be above rounding tolerance.
+		//! sort in order X, Y, Z.
 		bool operator<(const vector3d<T>&other) const
 		{
-			return (X<other.X && !core::equals(X, other.X)) ||
-					(core::equals(X, other.X) && Y<other.Y && !core::equals(Y, other.Y)) ||
-					(core::equals(X, other.X) && core::equals(Y, other.Y) && Z<other.Z && !core::equals(Z, other.Z));
+			return X < other.X || (X == other.X && Y < other.Y) ||
+					(X == other.X && Y == other.Y && Z < other.Z);
 		}
 
-		//! sort in order X, Y, Z. Difference must be above rounding tolerance.
+		//! sort in order X, Y, Z.
 		bool operator>(const vector3d<T>&other) const
 		{
-			return (X>other.X && !core::equals(X, other.X)) ||
-					(core::equals(X, other.X) && Y>other.Y && !core::equals(Y, other.Y)) ||
-					(core::equals(X, other.X) && core::equals(Y, other.Y) && Z>other.Z && !core::equals(Z, other.Z));
+			return X > other.X || (X == other.X && Y > other.Y) ||
+					(X == other.X && Y == other.Y && Z > other.Z);
 		}
 
-		//! use weak float compare
 		bool operator==(const vector3d<T>& other) const
 		{
-			return this->equals(other);
+			return X == other.X && Y == other.Y && Z == other.Z;
 		}
 
 		bool operator!=(const vector3d<T>& other) const
 		{
-			return !this->equals(other);
+			return !(*this == other);
 		}
 
 		// functions
 
-		//! returns if this vector equals the other one, taking floating point rounding errors into account
-		bool equals(const vector3d<T>& other, const T tolerance = (T)ROUNDING_ERROR_f32 ) const
+		//! Checks if this vector equals the other one.
+		/** Takes floating point rounding errors into account.
+		\param other Vector to compare with.
+		\return True if the two vector are (almost) equal, else false. */
+		bool equals(const vector3d<T>& other) const
 		{
-			return core::equals(X, other.X, tolerance) &&
-				core::equals(Y, other.Y, tolerance) &&
-				core::equals(Z, other.Z, tolerance);
+			return core::equals(X, other.X) && core::equals(Y, other.Y) && core::equals(Z, other.Z);
 		}
 
 		vector3d<T>& set(const T nx, const T ny, const T nz) {X=nx; Y=ny; Z=nz; return *this;}

scripts/BindingGenerator.lua

@@ -387,9 +387,9 @@ public:
 	// Call this once after creating the context.
 	void LoadAllProcedures(irr::video::IContextManager *cmgr);
 	// Check if an extension is supported.
-	inline bool IsExtensionPresent(const std::string &ext)
+	inline bool IsExtensionPresent(const std::string &ext) const
 	{
-		return extensions.find(ext) != extensions.end();
+		return extensions.count(ext) > 0;
 	}
 
 ]];
@@ -403,13 +403,16 @@ f:write[[
 	static constexpr const GLenum NONE = 0;
 ]];
 f:write( "};\n" );
-f:write( "\n//Global GL procedures object.\n" );
+f:write( "\n// Global GL procedures object.\n" );
 f:write( "IRRLICHT_API extern OpenGLProcedures GL;\n" );
 f:close();
 
 -- Write loader implementation
 f = io.open( sourceTreePath .. "/source/Irrlicht/mt_opengl_loader.cpp", "wb" );
 f:write[[
+// This code was generated by scripts/BindingGenerator.lua
+// Do not modify it, modify and run the generator instead.
+
 #include "mt_opengl.h"
 #include <string>
 #include <sstream>
@@ -423,9 +426,24 @@ void OpenGLProcedures::LoadAllProcedures(irr::video::IContextManager *cmgr)
 f:write( loader:Concat() );
 f:write[[
 
+	// OpenGL 3 way to enumerate extensions
+	GLint ext_count = 0;
+	GetIntegerv(NUM_EXTENSIONS, &ext_count);
+	extensions.reserve(ext_count);
+	for (GLint k = 0; k < ext_count; k++) {
+		auto tmp = GetStringi(EXTENSIONS, k);
+		if (tmp)
+			extensions.emplace((char*)tmp);
+	}
+	if (!extensions.empty())
+		return;
+
+	// OpenGL 2 / ES 2 way to enumerate extensions
+	auto ext_str = GetString(EXTENSIONS);
+	if (!ext_str)
+		return;
 	// get the extension string, chop it up
-	std::string ext_string = std::string((char*)GetString(EXTENSIONS));
-	std::stringstream ext_ss(ext_string);
+	std::stringstream ext_ss((char*)ext_str);
 	std::string tmp;
 	while (std::getline(ext_ss, tmp, ' '))
 		extensions.emplace(tmp);

scripts/ci-build-android.sh

@@ -0,0 +1,123 @@
+#!/bin/bash -e
+
+# NOTE: this code is mostly copied from minetest_android_deps
+# <https://github.com/minetest/minetest_android_deps>
+
+png_ver=1.6.40
+jpeg_ver=3.0.1
+
+download () {
+	get_tar_archive libpng "https://download.sourceforge.net/libpng/libpng-${png_ver}.tar.gz"
+	get_tar_archive libjpeg "https://download.sourceforge.net/libjpeg-turbo/libjpeg-turbo-${jpeg_ver}.tar.gz"
+}
+
+build () {
+	# Build libjpg and libpng first because Irrlicht needs them
+	mkdir -p libpng
+	pushd libpng
+	$srcdir/libpng/configure --host=$CROSS_PREFIX
+	make && make DESTDIR=$PWD install
+	popd
+
+	mkdir -p libjpeg
+	pushd libjpeg
+	cmake $srcdir/libjpeg "${CMAKE_FLAGS[@]}" -DENABLE_SHARED=OFF
+	make && make DESTDIR=$PWD install
+	popd
+
+	local libpng=$PWD/libpng/usr/local/lib/libpng.a
+	local libjpeg=$(echo $PWD/libjpeg/opt/libjpeg-turbo/lib*/libjpeg.a)
+	cmake $srcdir/irrlicht "${CMAKE_FLAGS[@]}" \
+		-DBUILD_SHARED_LIBS=OFF \
+		-DPNG_LIBRARY=$libpng \
+		-DPNG_PNG_INCLUDE_DIR=$(dirname "$libpng")/../include \
+		-DJPEG_LIBRARY=$libjpeg \
+		-DJPEG_INCLUDE_DIR=$(dirname "$libjpeg")/../include
+	make
+
+	cp -p lib/Android/libIrrlichtMt.a $libpng $libjpeg $pkgdir/
+	cp -a $srcdir/irrlicht/include $pkgdir/include
+	cp -a $srcdir/irrlicht/media/Shaders $pkgdir/Shaders
+}
+
+get_tar_archive () {
+	# $1: folder to extract to, $2: URL
+	local filename="${2##*/}"
+	[ -d "$1" ] && return 0
+	wget -c "$2" -O "$filename"
+	mkdir -p "$1"
+	tar -xaf "$filename" -C "$1" --strip-components=1
+	rm "$filename"
+}
+
+_setup_toolchain () {
+	local toolchain=$(echo "$ANDROID_NDK"/toolchains/llvm/prebuilt/*)
+	if [ ! -d "$toolchain" ]; then
+		echo "Android NDK path not specified or incorrect"; return 1
+	fi
+	export PATH="$toolchain/bin:$ANDROID_NDK:$PATH"
+
+	unset CFLAGS CPPFLAGS CXXFLAGS
+
+	TARGET_ABI="$1"
+	API=21
+	if [ "$TARGET_ABI" == armeabi-v7a ]; then
+		CROSS_PREFIX=armv7a-linux-androideabi
+		CFLAGS="-mthumb"
+		CXXFLAGS="-mthumb"
+	elif [ "$TARGET_ABI" == arm64-v8a ]; then
+		CROSS_PREFIX=aarch64-linux-android
+	elif [ "$TARGET_ABI" == x86 ]; then
+		CROSS_PREFIX=i686-linux-android
+		CFLAGS="-mssse3 -mfpmath=sse"
+		CXXFLAGS="-mssse3 -mfpmath=sse"
+	elif [ "$TARGET_ABI" == x86_64 ]; then
+		CROSS_PREFIX=x86_64-linux-android
+	else
+		echo "Invalid ABI given"; return 1
+	fi
+	export CC=$CROSS_PREFIX$API-clang
+	export CXX=$CROSS_PREFIX$API-clang++
+	export AR=llvm-ar
+	export RANLIB=llvm-ranlib
+	export CFLAGS="-fPIC ${CFLAGS}"
+	export CXXFLAGS="-fPIC ${CXXFLAGS}"
+
+	CMAKE_FLAGS=(
+		"-DCMAKE_TOOLCHAIN_FILE=$ANDROID_NDK/build/cmake/android.toolchain.cmake"
+		"-DANDROID_ABI=$TARGET_ABI" "-DANDROID_NATIVE_API_LEVEL=$API"
+		"-DCMAKE_BUILD_TYPE=Release"
+	)
+
+	# make sure pkg-config doesn't interfere
+	export PKG_CONFIG=/bin/false
+
+	export MAKEFLAGS="-j$(nproc)"
+}
+
+_run_build () {
+	local abi=$1
+	irrdir=$PWD
+
+	mkdir -p $RUNNER_TEMP/src
+	cd $RUNNER_TEMP/src
+	srcdir=$PWD
+	[ -d irrlicht ] || ln -s $irrdir irrlicht
+	download
+
+	builddir=$RUNNER_TEMP/build/irrlicht-$abi
+	pkgdir=$RUNNER_TEMP/pkg/$abi/Irrlicht
+	rm -rf "$pkgdir"
+	mkdir -p "$builddir" "$pkgdir"
+
+	cd "$builddir"
+	build
+}
+
+if [ $# -lt 1 ]; then
+	echo "Usage: ci-build-android.sh <ABI>"
+	exit 1
+fi
+
+_setup_toolchain $1
+_run_build $1

source/Irrlicht/Android/CIrrDeviceAndroid.cpp

@@ -31,7 +31,8 @@ namespace irr
 {
 
 CIrrDeviceAndroid::CIrrDeviceAndroid(const SIrrlichtCreationParameters& param)
-	: CIrrDeviceStub(param), Accelerometer(0), Gyroscope(0), Focused(false), Initialized(false), Paused(true), JNIEnvAttachedToVM(0)
+	: CIrrDeviceStub(param), Accelerometer(0), Gyroscope(0), Initialized(false),
+	  Stopped(true), Paused(true), Focused(false), JNIEnvAttachedToVM(0)
 {
 #ifdef _DEBUG
 	setDebugName("CIrrDeviceAndroid");
@@ -64,7 +65,7 @@ CIrrDeviceAndroid::CIrrDeviceAndroid(const SIrrlichtCreationParameters& param)
 		s32 Events = 0;
 		android_poll_source* Source = 0;
 
-		while ((ALooper_pollAll(((Focused && !Paused) || !Initialized) ? 0 : -1, 0, &Events, (void**)&Source)) >= 0)
+		while ((ALooper_pollAll((!Initialized || isWindowActive()) ? 0 : -1, 0, &Events, (void**)&Source)) >= 0)
 		{
 			if(Source)
 				Source->process(Android, Source);
@@ -180,7 +181,7 @@ void CIrrDeviceAndroid::setWindowCaption(const wchar_t* text)
 
 bool CIrrDeviceAndroid::isWindowActive() const
 {
-	return (Focused && !Paused);
+	return (Focused && !Paused && !Stopped);
 }
 
 bool CIrrDeviceAndroid::isWindowFocused() const
@@ -193,6 +194,11 @@ bool CIrrDeviceAndroid::isWindowMinimized() const
 	return !Focused;
 }
 
+bool CIrrDeviceAndroid::isWindowVisible() const
+{
+	return !Stopped;
+}
+
 void CIrrDeviceAndroid::closeDevice()
 {
 	ANativeActivity_finish(Android->activity);
@@ -260,6 +266,7 @@ void CIrrDeviceAndroid::handleAndroidCommand(android_app* app, int32_t cmd)
 		break;
 		case APP_CMD_START:
 			os::Printer::log("Android command APP_CMD_START", ELL_DEBUG);
+			device->Stopped = false;
 		break;
 		case APP_CMD_INIT_WINDOW:
 			os::Printer::log("Android command APP_CMD_INIT_WINDOW", ELL_DEBUG);
@@ -317,6 +324,7 @@ void CIrrDeviceAndroid::handleAndroidCommand(android_app* app, int32_t cmd)
 			break;
 		case APP_CMD_STOP:
 			os::Printer::log("Android command APP_CMD_STOP", ELL_DEBUG);
+			device->Stopped = true;
 			break;
 		case APP_CMD_RESUME:
 			os::Printer::log("Android command APP_CMD_RESUME", ELL_DEBUG);

source/Irrlicht/Android/CIrrDeviceAndroid.h

@@ -36,6 +36,8 @@ namespace irr
 
 		virtual bool isWindowMinimized() const;
 
+		virtual bool isWindowVisible() const;
+
 		virtual void closeDevice();
 
 		virtual void setResizable(bool resize = false);
@@ -84,9 +86,10 @@ namespace irr
 		const ASensor* Accelerometer;
 		const ASensor* Gyroscope;
 
-		bool Focused;
 		bool Initialized;
+		bool Stopped;
 		bool Paused;
+		bool Focused;
 
 		JNIEnv* JNIEnvAttachedToVM;
 

source/Irrlicht/CAnimatedMeshSceneNode.cpp

@@ -51,6 +51,8 @@ CAnimatedMeshSceneNode::~CAnimatedMeshSceneNode()
 {
 	if (LoopCallBack)
 		LoopCallBack->drop();
+	if (Mesh)
+		Mesh->drop();
 }
 
 
@@ -469,21 +471,21 @@ IBoneSceneNode* CAnimatedMeshSceneNode::getJointNode(const c8* jointName)
 
 	ISkinnedMesh *skinnedMesh=(ISkinnedMesh*)Mesh;
 
-	const s32 number = skinnedMesh->getJointNumber(jointName);
+	const std::optional<u32> number = skinnedMesh->getJointNumber(jointName);
 
-	if (number == -1)
+	if (!number.has_value())
 	{
 		os::Printer::log("Joint with specified name not found in skinned mesh", jointName, ELL_DEBUG);
 		return 0;
 	}
 
-	if ((s32)JointChildSceneNodes.size() <= number)
+	if (JointChildSceneNodes.size() <= *number)
 	{
 		os::Printer::log("Joint was found in mesh, but is not loaded into node", jointName, ELL_WARNING);
 		return 0;
 	}
 
-	return JointChildSceneNodes[number];
+	return JointChildSceneNodes[*number];
 }
 
 

source/Irrlicht/CB3DMeshFileLoader.cpp

@@ -12,6 +12,8 @@
 #include "IFileSystem.h"
 #include "os.h"
 
+#include <algorithm>
+
 #ifdef _DEBUG
 #define _B3D_READER_DEBUG
 #endif
@@ -149,7 +151,7 @@ bool CB3DMeshFileLoader::load()
 bool CB3DMeshFileLoader::readChunkNODE(CSkinnedMesh::SJoint *inJoint)
 {
 	CSkinnedMesh::SJoint *joint = AnimatedMesh->addJoint(inJoint);
-	readString(joint->Name);
+	joint->Name = readString();
 
 #ifdef _B3D_READER_DEBUG
 	core::stringc logStr;
@@ -818,8 +820,8 @@ bool CB3DMeshFileLoader::readChunkTEXS()
 		Textures.push_back(SB3dTexture());
 		SB3dTexture& B3dTexture = Textures.getLast();
 
-		readString(B3dTexture.TextureName);
-		B3dTexture.TextureName.replace('\\','/');
+		B3dTexture.TextureName = readString();
+		std::replace(B3dTexture.TextureName.begin(), B3dTexture.TextureName.end(), '\\', '/');
 #ifdef _B3D_READER_DEBUG
 		os::Printer::log("read Texture", B3dTexture.TextureName.c_str(), ELL_DEBUG);
 #endif
@@ -872,10 +874,9 @@ bool CB3DMeshFileLoader::readChunkBRUS()
 	{
 		// This is what blitz basic calls a brush, like a Irrlicht Material
 
-		core::stringc name;
-		readString(name);
+		auto name = readString();
 #ifdef _B3D_READER_DEBUG
-		os::Printer::log("read Material", name, ELL_DEBUG);
+		os::Printer::log("read Material", name.c_str(), ELL_DEBUG);
 #endif
 		Materials.push_back(SB3dMaterial());
 		SB3dMaterial& B3dMaterial=Materials.getLast();
@@ -1031,18 +1032,19 @@ bool CB3DMeshFileLoader::readChunkBRUS()
 }
 
 
-void CB3DMeshFileLoader::readString(core::stringc& newstring)
+std::string CB3DMeshFileLoader::readString()
 {
-	newstring="";
+	std::string newstring = "";
 	while (true)
 	{
 		c8 character;
 		if (B3DFile->read(&character, sizeof(character)) == 0)
-			return; // eof
+			break; // eof
 		if (character==0)
-			return;
-		newstring.append(character);
+			break;
+		newstring.push_back(character);
 	}
+	return newstring;
 }
 
 

source/Irrlicht/CB3DMeshFileLoader.h

@@ -52,7 +52,7 @@ private:
 	bool readChunkTEXS();
 	bool readChunkBRUS();
 
-	void readString(core::stringc& newstring);
+	std::string readString();
 	void readFloats(f32* vec, u32 count);
 
 	core::array<SB3dChunk> B3dStack;

source/Irrlicht/CBoneSceneNode.cpp

@@ -4,6 +4,8 @@
 
 #include "CBoneSceneNode.h"
 
+#include <optional>
+
 namespace irr
 {
 namespace scene
@@ -11,7 +13,7 @@ namespace scene
 
 //! constructor
 CBoneSceneNode::CBoneSceneNode(ISceneNode* parent, ISceneManager* mgr, s32 id,
-	u32 boneIndex, const c8* boneName)
+	u32 boneIndex, const std::optional<std::string> &boneName)
 : IBoneSceneNode(parent, mgr, id), BoneIndex(boneIndex),
 	AnimationMode(EBAM_AUTOMATIC), SkinningSpace(EBSS_LOCAL)
 {

source/Irrlicht/CBoneSceneNode.h

@@ -8,6 +8,8 @@
 
 #include "IBoneSceneNode.h"
 
+#include <optional>
+
 namespace irr
 {
 namespace scene
@@ -19,7 +21,8 @@ namespace scene
 
 		//! constructor
 		CBoneSceneNode(ISceneNode* parent, ISceneManager* mgr,
-			s32 id=-1, u32 boneIndex=0, const c8* boneName=0);
+			s32 id=-1, u32 boneIndex=0,
+			const std::optional<std::string> &boneName = std::nullopt);
 
 		//! Returns the index of the bone
 		u32 getBoneIndex() const override;

source/Irrlicht/CColorConverter.cpp

@@ -757,9 +757,6 @@ void CColorConverter::convert_viaFormat(const void* sP, ECOLOR_FORMAT sF, s32 sN
 				case ECF_R8G8B8:
 					convert_A1R5G5B5toR8G8B8(sP, sN, dP);
 				break;
-				IRR_CASE_IIMAGE_COMPRESSED_FORMAT
-					os::Printer::log("CColorConverter::convert_viaFormat method doesn't support compressed images.", ELL_WARNING);
-				break;
 
 				default:
 					break;
@@ -780,9 +777,6 @@ void CColorConverter::convert_viaFormat(const void* sP, ECOLOR_FORMAT sF, s32 sN
 				case ECF_R8G8B8:
 					convert_R5G6B5toR8G8B8(sP, sN, dP);
 				break;
-				IRR_CASE_IIMAGE_COMPRESSED_FORMAT
-					os::Printer::log("CColorConverter::convert_viaFormat method doesn't support compressed images.", ELL_WARNING);
-				break;
 
 				default:
 					break;
@@ -803,9 +797,6 @@ void CColorConverter::convert_viaFormat(const void* sP, ECOLOR_FORMAT sF, s32 sN
 				case ECF_R8G8B8:
 					convert_A8R8G8B8toR8G8B8(sP, sN, dP);
 				break;
-				IRR_CASE_IIMAGE_COMPRESSED_FORMAT
-					os::Printer::log("CColorConverter::convert_viaFormat method doesn't support compressed images.", ELL_WARNING);
-				break;
 
 				default:
 					break;
@@ -826,17 +817,11 @@ void CColorConverter::convert_viaFormat(const void* sP, ECOLOR_FORMAT sF, s32 sN
 				case ECF_R8G8B8:
 					convert_R8G8B8toR8G8B8(sP, sN, dP);
 				break;
-				IRR_CASE_IIMAGE_COMPRESSED_FORMAT
-					os::Printer::log("CColorConverter::convert_viaFormat method doesn't support compressed images.", ELL_WARNING);
-				break;
 
 				default:
 					break;
 			}
 		break;
-		IRR_CASE_IIMAGE_COMPRESSED_FORMAT
-			os::Printer::log("CColorConverter::convert_viaFormat method doesn't support compressed images.", ELL_WARNING);
-			break;
 
 		default:
 			break;

source/Irrlicht/CImage.cpp

@@ -75,10 +75,6 @@ void CImage::setPixel(u32 x, u32 y, const SColor &color, bool blend)
 			*dest = blend ? PixelBlend32 ( *dest, color.color ) : color.color;
 		} break;
 
-		IRR_CASE_IIMAGE_COMPRESSED_FORMAT
-			os::Printer::log("IImage::setPixel method doesn't work with compressed images.", ELL_WARNING);
-			return;
-
 		case ECF_UNKNOWN:
 			os::Printer::log("IImage::setPixel unknown format.", ELL_WARNING);
 			return;
@@ -109,10 +105,6 @@ SColor CImage::getPixel(u32 x, u32 y) const
 			return SColor(255,p[0],p[1],p[2]);
 		}
 
-	IRR_CASE_IIMAGE_COMPRESSED_FORMAT
-		os::Printer::log("IImage::getPixel method doesn't work with compressed images.", ELL_WARNING);
-		break;
-
 	case ECF_UNKNOWN:
 		os::Printer::log("IImage::getPixel unknown format.", ELL_WARNING);
 		break;

source/Irrlicht/CIrrDeviceSDL.cpp

@@ -218,9 +218,28 @@ int CIrrDeviceSDL::findCharToPassToIrrlicht(int assumedChar, EKEY_CODE key) {
 void CIrrDeviceSDL::resetReceiveTextInputEvents() {
 	gui::IGUIElement *elem = GUIEnvironment->getFocus();
 	if (elem && elem->acceptsIME())
-		SDL_StartTextInput();
+	{
+		// IBus seems to have an issue where dead keys and compose keys do not
+		// work (specifically, the individual characters in the sequence are
+		// sent as text input events instead of the result) when
+		// SDL_StartTextInput() is called on the same input box.
+		core::rect<s32> pos = elem->getAbsolutePosition();
+		if (!SDL_IsTextInputActive() || lastElemPos != pos)
+		{
+			lastElemPos = pos;
+			SDL_Rect rect;
+			rect.x = pos.UpperLeftCorner.X;
+			rect.y = pos.UpperLeftCorner.Y;
+			rect.w = pos.getWidth();
+			rect.h = pos.getHeight();
+			SDL_SetTextInputRect(&rect);
+			SDL_StartTextInput();
+		}
+	}
 	else
+	{
 		SDL_StopTextInput();
+	}
 }
 
 //! constructor
@@ -229,7 +248,7 @@ CIrrDeviceSDL::CIrrDeviceSDL(const SIrrlichtCreationParameters& param)
 	Window((SDL_Window*)param.WindowId), SDL_Flags(0),
 	MouseX(0), MouseY(0), MouseXRel(0), MouseYRel(0), MouseButtonStates(0),
 	Width(param.WindowSize.Width), Height(param.WindowSize.Height),
-	Resizable(param.WindowResizable == 1 ? true : false)
+	Resizable(param.WindowResizable == 1 ? true : false), CurrentTouchCount(0)
 {
 	#ifdef _DEBUG
 	setDebugName("CIrrDeviceSDL");
@@ -254,14 +273,21 @@ CIrrDeviceSDL::CIrrDeviceSDL(const SIrrlichtCreationParameters& param)
 		}
 	}
 
+	// Minetest has its own code to synthesize mouse events from touch events,
+	// so we prevent SDL from doing it.
+	SDL_SetHint(SDL_HINT_TOUCH_MOUSE_EVENTS, "0");
+	SDL_SetHint(SDL_HINT_MOUSE_TOUCH_EVENTS, "0");
+
 	// create keymap
 	createKeyMap();
 
 	// create window
 	if (CreationParams.DriverType != video::EDT_NULL)
 	{
-		// create the window, only if we do not use the null device
-		createWindow();
+		if (!createWindow()) {
+			Close = true;
+			return;
+		}
 	}
 
 
@@ -555,7 +581,11 @@ bool CIrrDeviceSDL::run()
 
 			irrevent.EventType = irr::EET_MOUSE_INPUT_EVENT;
 			irrevent.MouseInput.Event = irr::EMIE_MOUSE_WHEEL;
+#if SDL_VERSION_ATLEAST(2, 0, 18)
 			irrevent.MouseInput.Wheel = SDL_event.wheel.preciseY;
+#else
+			irrevent.MouseInput.Wheel = SDL_event.wheel.y;
+#endif
 			irrevent.MouseInput.Shift = (keymod & KMOD_SHIFT) != 0;
 			irrevent.MouseInput.Control = (keymod & KMOD_CTRL) != 0;
 			irrevent.MouseInput.X = MouseX;
@@ -741,6 +771,45 @@ bool CIrrDeviceSDL::run()
 			postEventFromUser(irrevent);
 			break;
 
+		case SDL_FINGERDOWN:
+			irrevent.EventType = EET_TOUCH_INPUT_EVENT;
+			irrevent.TouchInput.Event = ETIE_PRESSED_DOWN;
+			irrevent.TouchInput.ID = SDL_event.tfinger.fingerId;
+			irrevent.TouchInput.X = SDL_event.tfinger.x * Width;
+			irrevent.TouchInput.Y = SDL_event.tfinger.y * Height;
+			CurrentTouchCount++;
+			irrevent.TouchInput.touchedCount = CurrentTouchCount;
+
+			postEventFromUser(irrevent);
+			break;
+
+		case SDL_FINGERMOTION:
+			irrevent.EventType = EET_TOUCH_INPUT_EVENT;
+			irrevent.TouchInput.Event = ETIE_MOVED;
+			irrevent.TouchInput.ID = SDL_event.tfinger.fingerId;
+			irrevent.TouchInput.X = SDL_event.tfinger.x * Width;
+			irrevent.TouchInput.Y = SDL_event.tfinger.y * Height;
+			irrevent.TouchInput.touchedCount = CurrentTouchCount;
+
+			postEventFromUser(irrevent);
+			break;
+
+		case SDL_FINGERUP:
+			irrevent.EventType = EET_TOUCH_INPUT_EVENT;
+			irrevent.TouchInput.Event = ETIE_LEFT_UP;
+			irrevent.TouchInput.ID = SDL_event.tfinger.fingerId;
+			irrevent.TouchInput.X = SDL_event.tfinger.x * Width;
+			irrevent.TouchInput.Y = SDL_event.tfinger.y * Height;
+			// To match Android behavior, still count the pointer that was
+			// just released.
+			irrevent.TouchInput.touchedCount = CurrentTouchCount;
+			if (CurrentTouchCount > 0) {
+				CurrentTouchCount--;
+			}
+
+			postEventFromUser(irrevent);
+			break;
+
 		default:
 			break;
 		} // end switch

source/Irrlicht/CIrrDeviceSDL.h

@@ -17,6 +17,10 @@
 #endif
 
 #include <SDL.h>
+// DirectFB is removed in SDL3, thou distribution as Alpine currently ships SDL2
+// with enabled DirectFB, but requiring another fix at a top of SDL2.
+// We don't need DirectFB in Irrlicht/Minetest, so simply disable it here to prevent issues.
+#undef SDL_VIDEO_DRIVER_DIRECTFB
 #include <SDL_syswm.h>
 
 #include <memory>
@@ -299,6 +303,8 @@ namespace irr
 
 		bool Resizable;
 
+		core::rect<s32> lastElemPos;
+
 		struct SKeyMap
 		{
 			SKeyMap() {}
@@ -318,6 +324,8 @@ namespace irr
 
 		core::array<SKeyMap> KeyMap;
 		SDL_SysWMinfo Info;
+
+		s32 CurrentTouchCount;
 	};
 
 } // end namespace irr

source/Irrlicht/CMakeLists.txt

@@ -29,7 +29,7 @@ if(CMAKE_CXX_COMPILER_ID MATCHES "^(GNU|Clang|AppleClang)$")
 	set(CMAKE_CXX_FLAGS_RELEASE "-O3")
 	set(CMAKE_CXX_FLAGS_DEBUG "-g")
 
-	add_compile_options(-Wall -pipe -fno-exceptions -fno-rtti)
+	add_compile_options(-Wall -pipe -fno-exceptions)
 
 	# Enable SSE for floating point math on 32-bit x86 by default
 	# reasoning see minetest issue #11810 and https://gcc.gnu.org/wiki/FloatingPointMath
@@ -184,6 +184,7 @@ endif()
 
 if(ENABLE_OPENGL)
 	add_definitions(-D_IRR_COMPILE_WITH_OPENGL_)
+	set(OPENGL_DIRECT_LINK TRUE) # not yet possible to remove this
 	if(DEVICE STREQUAL "WINDOWS")
 		add_definitions(-D_IRR_COMPILE_WITH_WGL_MANAGER_ -D_IRR_OPENGL_USE_EXTPOINTER_)
 	elseif(DEVICE STREQUAL "X11")
@@ -199,6 +200,7 @@ if(ENABLE_OPENGL3)
 	if (NOT USE_SDL2)
 		message(FATAL_ERROR "OpenGL 3 driver requires SDL2")
 	endif()
+	set(OPENGL_DIRECT_LINK TRUE) # TODO
 	set(USE_SDLGL ON)
 	set(USE_SDLGL3 ON)
 endif()
@@ -208,6 +210,7 @@ if(ENABLE_GLES1)
 		message(FATAL_ERROR "OpenGL ES 1 is not supported with SDL2")
 	endif()
 	add_definitions(-D_IRR_COMPILE_WITH_OGLES1_)
+	set(OPENGLES_DIRECT_LINK TRUE)
 	if(DEVICE MATCHES "^(WINDOWS|X11|ANDROID)$")
 		add_definitions(-D_IRR_COMPILE_WITH_EGL_MANAGER_ -D_IRR_OGLES1_USE_EXTPOINTER_)
 	endif()
@@ -215,9 +218,11 @@ endif()
 
 if(ENABLE_GLES2)
 	add_definitions(-D_IRR_COMPILE_WITH_OGLES2_)
+	set(OPENGLES2_DIRECT_LINK TRUE) # not yet possible to remove this
 	if(DEVICE MATCHES "^(WINDOWS|X11|ANDROID)$" OR EMSCRIPTEN)
 		add_definitions(-D_IRR_COMPILE_WITH_EGL_MANAGER_ -D_IRR_OGLES2_USE_EXTPOINTER_)
 	elseif(DEVICE STREQUAL "SDL")
+		add_definitions(-D_IRR_OGLES2_USE_EXTPOINTER_)
 		set(USE_SDLGL ON)
 		set(USE_SDLGLES2 ON)
 	endif()
@@ -309,26 +314,6 @@ set(link_includes
 	"$<$<BOOL:${USE_X11}>:${X11_INCLUDE_DIR}>"
 )
 
-set(link_libs
-	"${ZLIB_LIBRARY}"
-	"${JPEG_LIBRARY}"
-	"${PNG_LIBRARY}"
-	"$<$<BOOL:${USE_SDL2}>:SDL2::SDL2>"
-
-	${OPENGL_LIBRARIES}
-	${OPENGLES_LIBRARY}
-	${OPENGLES2_LIBRARIES}
-	${EGL_LIBRARY}
-
-	"$<$<PLATFORM_ID:Android>:-landroid -llog>"
-	${COCOA_LIB}
-	${IOKIT_LIB}
-	"$<$<PLATFORM_ID:Windows>:gdi32>"
-	"$<$<PLATFORM_ID:Windows>:winmm>"
-	"$<$<BOOL:${USE_X11}>:${X11_X11_LIB}>"
-	"$<$<BOOL:${USE_X11}>:${X11_Xi_LIB}>"
-)
-
 # Source files
 
 set(IRRMESHLOADER
@@ -528,7 +513,27 @@ target_include_directories(IrrlichtMt
 		${link_includes}
 )
 
-target_link_libraries(IrrlichtMt PRIVATE ${link_libs})
+# this needs to be here and not in a variable (like link_includes) due to issues
+# with the generator expressions on at least CMake 3.22, but not 3.28 or later
+target_link_libraries(IrrlichtMt PRIVATE
+	${ZLIB_LIBRARY}
+	${JPEG_LIBRARY}
+	${PNG_LIBRARY}
+	"$<$<BOOL:${USE_SDL2}>:SDL2::SDL2>"
+
+	"$<$<BOOL:${OPENGL_DIRECT_LINK}>:${OPENGL_LIBRARIES}>"
+	"$<$<BOOL:${OPENGLES_DIRECT_LINK}>:${OPENGLES_LIBRARY}>"
+	"$<$<BOOL:${OPENGLES2_DIRECT_LINK}>:${OPENGLES2_LIBRARIES}>"
+	${EGL_LIBRARY}
+
+	"$<$<PLATFORM_ID:Android>:-landroid -llog>"
+	${COCOA_LIB}
+	${IOKIT_LIB}
+	"$<$<PLATFORM_ID:Windows>:gdi32>"
+	"$<$<PLATFORM_ID:Windows>:winmm>"
+	"$<$<BOOL:${USE_X11}>:${X11_X11_LIB}>"
+	"$<$<BOOL:${USE_X11}>:${X11_Xi_LIB}>"
+)
 
 if(WIN32)
 	target_compile_definitions(IrrlichtMt INTERFACE _IRR_WINDOWS_API_) # used in _IRR_DEBUG_BREAK_IF definition in a public header

source/Irrlicht/CNullDriver.cpp

@@ -1001,68 +1001,6 @@ bool CNullDriver::checkPrimitiveCount(u32 prmCount) const
 
 bool CNullDriver::checkImage(IImage *image) const
 {
-	ECOLOR_FORMAT format = image->getColorFormat();
-	core::dimension2d<u32> size = image->getDimension();
-
-	switch (format)
-	{
-	case ECF_DXT1:
-	case ECF_DXT2:
-	case ECF_DXT3:
-	case ECF_DXT4:
-	case ECF_DXT5:
-		if (!queryFeature(EVDF_TEXTURE_COMPRESSED_DXT))
-		{
-			os::Printer::log("DXT texture compression not available.", ELL_ERROR);
-			return false;
-		}
-		else if (size.getOptimalSize(true, false) != size)
-		{
-			os::Printer::log("Invalid size of image for DXT texture, size of image must be power of two.", ELL_ERROR);
-			return false;
-		}
-		break;
-	case ECF_PVRTC_RGB2:
-	case ECF_PVRTC_ARGB2:
-	case ECF_PVRTC_RGB4:
-	case ECF_PVRTC_ARGB4:
-		if (!queryFeature(EVDF_TEXTURE_COMPRESSED_PVRTC))
-		{
-			os::Printer::log("PVRTC texture compression not available.", ELL_ERROR);
-			return false;
-		}
-		else if (size.getOptimalSize(true, false) != size)
-		{
-			os::Printer::log("Invalid size of image for PVRTC compressed texture, size of image must be power of two and squared.", ELL_ERROR);
-			return false;
-		}
-		break;
-	case ECF_PVRTC2_ARGB2:
-	case ECF_PVRTC2_ARGB4:
-		if (!queryFeature(EVDF_TEXTURE_COMPRESSED_PVRTC2))
-		{
-			os::Printer::log("PVRTC2 texture compression not available.", ELL_ERROR);
-			return false;
-		}
-		break;
-	case ECF_ETC1:
-		if (!queryFeature(EVDF_TEXTURE_COMPRESSED_ETC1))
-		{
-			os::Printer::log("ETC1 texture compression not available.", ELL_ERROR);
-			return false;
-		}
-		break;
-	case ECF_ETC2_RGB:
-	case ECF_ETC2_ARGB:
-		if (!queryFeature(EVDF_TEXTURE_COMPRESSED_ETC2))
-		{
-			os::Printer::log("ETC2 texture compression not available.", ELL_ERROR);
-			return false;
-		}
-		break;
-	default:
-		break;
-	}
 	return true;
 }
 

source/Irrlicht/COGLES2Driver.cpp

@@ -2533,92 +2533,6 @@ COGLES2Driver::~COGLES2Driver()
 			}
 			pixelType = GL_UNSIGNED_BYTE;
 			break;
-#ifdef GL_EXT_texture_compression_s3tc
-		case ECF_DXT1:
-			supported = true;
-			pixelFormat = GL_RGBA;
-			pixelType = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
-			break;
-#endif
-#ifdef GL_EXT_texture_compression_s3tc
-		case ECF_DXT2:
-		case ECF_DXT3:
-			supported = true;
-			pixelFormat = GL_RGBA;
-			pixelType = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
-			break;
-#endif
-#ifdef GL_EXT_texture_compression_s3tc
-		case ECF_DXT4:
-		case ECF_DXT5:
-			supported = true;
-			pixelFormat = GL_RGBA;
-			pixelType = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
-			break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc
-		case ECF_PVRTC_RGB2:
-			supported = true;
-			pixelFormat = GL_RGB;
-			pixelType = GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
-			break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc
-		case ECF_PVRTC_ARGB2:
-			supported = true;
-			pixelFormat = GL_RGBA;
-			pixelType = GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
-			break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc
-		case ECF_PVRTC_RGB4:
-			supported = true;
-			pixelFormat = GL_RGB;
-			pixelType = GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
-			break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc
-		case ECF_PVRTC_ARGB4:
-			supported = true;
-			pixelFormat = GL_RGBA;
-			pixelType = GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
-			break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc2
-		case ECF_PVRTC2_ARGB2:
-			supported = true;
-			pixelFormat = GL_RGBA;
-			pixelType = GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG;
-			break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc2
-		case ECF_PVRTC2_ARGB4:
-			supported = true;
-			pixelFormat = GL_RGBA;
-			pixelType = GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG;
-			break;
-#endif
-#ifdef GL_OES_compressed_ETC1_RGB8_texture
-		case ECF_ETC1:
-			supported = true;
-			pixelFormat = GL_RGB;
-			pixelType = GL_ETC1_RGB8_OES;
-			break;
-#endif
-#ifdef GL_ES_VERSION_3_0 // TO-DO - fix when extension name will be available
-		case ECF_ETC2_RGB:
-			supported = true;
-			pixelFormat = GL_RGB;
-			pixelType = GL_COMPRESSED_RGB8_ETC2;
-			break;
-#endif
-#ifdef GL_ES_VERSION_3_0 // TO-DO - fix when extension name will be available
-		case ECF_ETC2_ARGB:
-			supported = true;
-			pixelFormat = GL_RGBA;
-			pixelType = GL_COMPRESSED_RGBA8_ETC2_EAC;
-			break;
-#endif
 		case ECF_D16:
 			supported = true;
 			pixelFormat = GL_DEPTH_COMPONENT;

source/Irrlicht/COGLES2ExtensionHandler.h

@@ -64,16 +64,6 @@ namespace video
 			case EVDF_MRT_BLEND_FUNC:
 			case EVDF_OCCLUSION_QUERY:
 				return false;
-			case EVDF_TEXTURE_COMPRESSED_DXT:
-				return false; // NV Tegra need improvements here
-			case EVDF_TEXTURE_COMPRESSED_PVRTC:
-				return FeatureAvailable[IRR_GL_IMG_texture_compression_pvrtc];
-			case EVDF_TEXTURE_COMPRESSED_PVRTC2:
-				return FeatureAvailable[IRR_GL_IMG_texture_compression_pvrtc2];
-			case EVDF_TEXTURE_COMPRESSED_ETC1:
-				return FeatureAvailable[IRR_GL_OES_compressed_ETC1_RGB8_texture];
-			case EVDF_TEXTURE_COMPRESSED_ETC2:
-				return false;
 			case EVDF_STENCIL_BUFFER:
 				return StencilBuffer;
 			default:

source/Irrlicht/COGLESDriver.cpp

@@ -2888,104 +2888,6 @@ bool COGLES1Driver::getColorFormatParameters(ECOLOR_FORMAT format, GLint& intern
 		}
 		pixelType = GL_UNSIGNED_BYTE;
 		break;
-#ifdef GL_EXT_texture_compression_s3tc
-	case ECF_DXT1:
-		supported = true;
-		internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
-		pixelFormat = GL_RGBA;
-		pixelType = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
-		break;
-#endif
-#ifdef GL_EXT_texture_compression_s3tc
-	case ECF_DXT2:
-	case ECF_DXT3:
-		supported = true;
-		internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
-		pixelFormat = GL_RGBA;
-		pixelType = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
-		break;
-#endif
-#ifdef GL_EXT_texture_compression_s3tc
-	case ECF_DXT4:
-	case ECF_DXT5:
-		supported = true;
-		internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
-		pixelFormat = GL_RGBA;
-		pixelType = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
-		break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc
-	case ECF_PVRTC_RGB2:
-		supported = true;
-		internalFormat = GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
-		pixelFormat = GL_RGB;
-		pixelType = GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
-		break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc
-	case ECF_PVRTC_ARGB2:
-		supported = true;
-		internalFormat = GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
-		pixelFormat = GL_RGBA;
-		pixelType = GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
-		break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc
-	case ECF_PVRTC_RGB4:
-		supported = true;
-		internalFormat = GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
-		pixelFormat = GL_RGB;
-		pixelType = GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
-		break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc
-	case ECF_PVRTC_ARGB4:
-		supported = true;
-		internalFormat = GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
-		pixelFormat = GL_RGBA;
-		pixelType = GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
-		break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc2
-	case ECF_PVRTC2_ARGB2:
-		supported = true;
-		internalFormat = GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG;
-		pixelFormat = GL_RGBA;
-		pixelType = GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG;
-		break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc2
-	case ECF_PVRTC2_ARGB4:
-		supported = true;
-		internalFormat = GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG;
-		pixelFormat = GL_RGBA;
-		pixelType = GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG;
-		break;
-#endif
-#ifdef GL_OES_compressed_ETC1_RGB8_texture
-	case ECF_ETC1:
-		supported = true;
-		internalFormat = GL_ETC1_RGB8_OES;
-		pixelFormat = GL_RGB;
-		pixelType = GL_ETC1_RGB8_OES;
-		break;
-#endif
-#ifdef GL_ES_VERSION_3_0 // TO-DO - fix when extension name will be available
-	case ECF_ETC2_RGB:
-		supported = true;
-		internalFormat = GL_COMPRESSED_RGB8_ETC2;
-		pixelFormat = GL_RGB;
-		pixelType = GL_COMPRESSED_RGB8_ETC2;
-		break;
-#endif
-#ifdef GL_ES_VERSION_3_0 // TO-DO - fix when extension name will be available
-	case ECF_ETC2_ARGB:
-		supported = true;
-		internalFormat = GL_COMPRESSED_RGBA8_ETC2_EAC;
-		pixelFormat = GL_RGBA;
-		pixelType = GL_COMPRESSED_RGBA8_ETC2_EAC;
-		break;
-#endif
 	case ECF_D16:
 		supported = true;
 		internalFormat = GL_DEPTH_COMPONENT16;

source/Irrlicht/COGLESExtensionHandler.h

@@ -55,14 +55,6 @@ namespace video
 				return FeatureAvailable[IRR_GL_OES_framebuffer_object];
 			case EVDF_VERTEX_BUFFER_OBJECT:
 				return Version>100;
-			case EVDF_TEXTURE_COMPRESSED_DXT:
-				return false; // NV Tegra need improvements here
-			case EVDF_TEXTURE_COMPRESSED_PVRTC:
-				return FeatureAvailable[IRR_GL_IMG_texture_compression_pvrtc];
-			case EVDF_TEXTURE_COMPRESSED_ETC1:
-				return FeatureAvailable[IRR_GL_OES_compressed_ETC1_RGB8_texture];
-			case EVDF_TEXTURE_CUBEMAP:
-				return FeatureAvailable[IRR_GL_OES_texture_cube_map];
 			default:
 				return true;
 			};

source/Irrlicht/COSOperator.cpp

@@ -159,10 +159,11 @@ const c8* COSOperator::getTextFromClipboard() const
 	if (!OpenClipboard(NULL))
 		return 0;
 
-	wchar_t * buffer = 0;
-
 	HANDLE hData = GetClipboardData( CF_UNICODETEXT );
-	buffer = (wchar_t*) GlobalLock( hData );
+	if (hData == NULL) // Probably not in Unicode text format
+		return 0;
+
+	wchar_t * buffer = (wchar_t*) GlobalLock( hData );
 
 	core::wStringToUTF8(ClipboardBuf, buffer);
 

source/Irrlicht/COpenGLCommon.h

@@ -23,7 +23,7 @@
 	#endif
 	#include <OpenGL/gl.h>
 	#if defined(_IRR_OPENGL_USE_EXTPOINTER_)
-		#include <GL/glext.h>
+		#error glext.h missing on OSX
 	#endif
 #elif defined(_IRR_COMPILE_WITH_SDL_DEVICE_) && !defined(_IRR_COMPILE_WITH_X11_DEVICE_)
 	#if defined(_IRR_OPENGL_USE_EXTPOINTER_)
@@ -34,8 +34,11 @@
 	#include <SDL_video.h>
 	#include <SDL_opengl.h>
 	#if defined(_IRR_OPENGL_USE_EXTPOINTER_)
-		// The SDL2 header doesn't cut it for extensions
+		#ifdef __APPLE__
+		#include <SDL_opengl_glext.h>
+		#else
 		#include <GL/glext.h>
+		#endif
 	#endif
 #else
 	#if defined(_IRR_OPENGL_USE_EXTPOINTER_)

source/Irrlicht/COpenGLCoreTexture.h

@@ -561,6 +561,10 @@ protected:
 
 		u32 width = Size.Width >> level;
 		u32 height = Size.Height >> level;
+		if (width < 1)
+			width = 1;
+		if (height < 1)
+			height = 1;
 
 		GLenum tmpTextureType = TextureType;
 

source/Irrlicht/COpenGLDriver.cpp

@@ -48,7 +48,7 @@ bool COpenGLDriver::initDriver()
 
 	genericDriverInit();
 
-#if defined(_IRR_COMPILE_WITH_WINDOWS_DEVICE_) || defined(_IRR_COMPILE_WITH_X11_DEVICE_)
+#if defined(_IRR_COMPILE_WITH_WINDOWS_DEVICE_) || defined(_IRR_COMPILE_WITH_X11_DEVICE_)
 	extGlSwapInterval(Params.Vsync ? 1 : 0);
 #endif
 
@@ -3962,29 +3962,6 @@ bool COpenGLDriver::getColorFormatParameters(ECOLOR_FORMAT format, GLint& intern
 		if (Version > 101)
 			pixelType = GL_UNSIGNED_INT_8_8_8_8_REV;
 		break;
-	case ECF_DXT1:
-		if (queryOpenGLFeature(COpenGLExtensionHandler::IRR_EXT_texture_compression_s3tc))
-		{
-			supported = true;
-			internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
-			pixelFormat = GL_BGRA_EXT;
-			pixelType = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
-		}
-		break;
-	case ECF_DXT2:
-	case ECF_DXT3:
-		supported = true;
-		internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
-		pixelFormat = GL_BGRA_EXT;
-		pixelType = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
-		break;
-	case ECF_DXT4:
-	case ECF_DXT5:
-		supported = true;
-		internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
-		pixelFormat = GL_BGRA_EXT;
-		pixelType = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
-		break;
 	case ECF_D16:
 		supported = true;
 		internalFormat = GL_DEPTH_COMPONENT16;

source/Irrlicht/COpenGLExtensionHandler.cpp

@@ -127,220 +127,6 @@ void COpenGLExtensionHandler::dump(ELOG_LEVEL logLevel) const
 }
 
 
-void COpenGLExtensionHandler::dumpFramebufferFormats() const
-{
-#ifdef _IRR_WINDOWS_API_
-	HDC hdc=wglGetCurrentDC();
-	core::stringc wglExtensions;
-#ifdef WGL_ARB_extensions_string
-	PFNWGLGETEXTENSIONSSTRINGARBPROC irrGetExtensionsString = (PFNWGLGETEXTENSIONSSTRINGARBPROC)wglGetProcAddress("wglGetExtensionsStringARB");
-	if (irrGetExtensionsString)
-		wglExtensions = irrGetExtensionsString(hdc);
-#elif defined(WGL_EXT_extensions_string)
-	PFNWGLGETEXTENSIONSSTRINGEXTPROC irrGetExtensionsString = (PFNWGLGETEXTENSIONSSTRINGEXTPROC)wglGetProcAddress("wglGetExtensionsStringEXT");
-	if (irrGetExtensionsString)
-		wglExtensions = irrGetExtensionsString(hdc);
-#endif
-	const bool pixel_format_supported = (wglExtensions.find("WGL_ARB_pixel_format") != -1);
-	const bool multi_sample_supported = ((wglExtensions.find("WGL_ARB_multisample") != -1) ||
-		(wglExtensions.find("WGL_EXT_multisample") != -1) || (wglExtensions.find("WGL_3DFX_multisample") != -1) );
-#ifdef _DEBUG
-	os::Printer::log("WGL_extensions", wglExtensions);
-#endif
-
-#ifdef WGL_ARB_pixel_format
-	PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormat_ARB = (PFNWGLCHOOSEPIXELFORMATARBPROC)wglGetProcAddress("wglChoosePixelFormatARB");
-	if (pixel_format_supported && wglChoosePixelFormat_ARB)
-	{
-		// This value determines the number of samples used for antialiasing
-		// My experience is that 8 does not show a big
-		// improvement over 4, but 4 shows a big improvement
-		// over 2.
-
-		PFNWGLGETPIXELFORMATATTRIBIVARBPROC wglGetPixelFormatAttribiv_ARB = (PFNWGLGETPIXELFORMATATTRIBIVARBPROC)wglGetProcAddress("wglGetPixelFormatAttribivARB");
-		if (wglGetPixelFormatAttribiv_ARB)
-		{
-			int vals[128];
-			int atts[] = {
-				WGL_NUMBER_PIXEL_FORMATS_ARB,
-				WGL_DRAW_TO_BITMAP_ARB,
-				WGL_ACCELERATION_ARB,
-				WGL_NEED_PALETTE_ARB,
-				WGL_NEED_SYSTEM_PALETTE_ARB,
-				WGL_SWAP_LAYER_BUFFERS_ARB,
-				WGL_SWAP_METHOD_ARB,
-				WGL_NUMBER_OVERLAYS_ARB,
-				WGL_NUMBER_UNDERLAYS_ARB,
-				WGL_TRANSPARENT_ARB,
-				WGL_TRANSPARENT_RED_VALUE_ARB,
-				WGL_TRANSPARENT_GREEN_VALUE_ARB,
-				WGL_TRANSPARENT_BLUE_VALUE_ARB,
-				WGL_TRANSPARENT_ALPHA_VALUE_ARB,
-				WGL_TRANSPARENT_INDEX_VALUE_ARB,
-				WGL_SHARE_DEPTH_ARB,
-				WGL_SHARE_STENCIL_ARB,
-				WGL_SHARE_ACCUM_ARB,
-				WGL_SUPPORT_GDI_ARB,
-				WGL_SUPPORT_OPENGL_ARB,
-				WGL_DOUBLE_BUFFER_ARB,
-				WGL_STEREO_ARB,
-				WGL_PIXEL_TYPE_ARB,
-				WGL_COLOR_BITS_ARB,
-				WGL_RED_BITS_ARB,
-				WGL_RED_SHIFT_ARB,
-				WGL_GREEN_BITS_ARB,
-				WGL_GREEN_SHIFT_ARB,
-				WGL_BLUE_BITS_ARB,
-				WGL_BLUE_SHIFT_ARB,
-				WGL_ALPHA_BITS_ARB,
-				WGL_ALPHA_SHIFT_ARB,
-				WGL_ACCUM_BITS_ARB,
-				WGL_ACCUM_RED_BITS_ARB,
-				WGL_ACCUM_GREEN_BITS_ARB,
-				WGL_ACCUM_BLUE_BITS_ARB,
-				WGL_ACCUM_ALPHA_BITS_ARB,
-				WGL_DEPTH_BITS_ARB,
-				WGL_STENCIL_BITS_ARB,
-				WGL_AUX_BUFFERS_ARB
-#ifdef WGL_ARB_render_texture
-				,WGL_BIND_TO_TEXTURE_RGB_ARB //40
-				,WGL_BIND_TO_TEXTURE_RGBA_ARB
-#endif
-#ifdef WGL_ARB_pbuffer
-				,WGL_DRAW_TO_PBUFFER_ARB //42
-				,WGL_MAX_PBUFFER_PIXELS_ARB
-				,WGL_MAX_PBUFFER_WIDTH_ARB
-				,WGL_MAX_PBUFFER_HEIGHT_ARB
-#endif
-#ifdef WGL_ARB_framebuffer_sRGB
-				,WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB //46
-#endif
-#ifdef WGL_ARB_multisample
-				,WGL_SAMPLES_ARB //47
-				,WGL_SAMPLE_BUFFERS_ARB
-#endif
-#ifdef WGL_EXT_depth_float
-				,WGL_DEPTH_FLOAT_EXT //49
-#endif
-				,0,0,0,0
-			};
-			size_t nums = sizeof(atts)/sizeof(int);
-			const bool depth_float_supported= (wglExtensions.find("WGL_EXT_depth_float") != -1);
-			if (!depth_float_supported)
-			{
-				memmove(&atts[49], &atts[50], (nums-50)*sizeof(int));
-				nums -= 1;
-			}
-			if (!multi_sample_supported)
-			{
-				memmove(&atts[47], &atts[49], (nums-49)*sizeof(int));
-				nums -= 2;
-			}
-			const bool framebuffer_sRGB_supported= (wglExtensions.find("WGL_ARB_framebuffer_sRGB") != -1);
-			if (!framebuffer_sRGB_supported)
-			{
-				memmove(&atts[46], &atts[47], (nums-47)*sizeof(int));
-				nums -= 1;
-			}
-			const bool pbuffer_supported = (wglExtensions.find("WGL_ARB_pbuffer") != -1);
-			if (!pbuffer_supported)
-			{
-				memmove(&atts[42], &atts[46], (nums-46)*sizeof(int));
-				nums -= 4;
-			}
-			const bool render_texture_supported = (wglExtensions.find("WGL_ARB_render_texture") != -1);
-			if (!render_texture_supported)
-			{
-				memmove(&atts[40], &atts[42], (nums-42)*sizeof(int));
-				nums -= 2;
-			}
-			wglGetPixelFormatAttribiv_ARB(hdc,0,0,1,atts,vals);
-			const int count = vals[0];
-			atts[0]=WGL_DRAW_TO_WINDOW_ARB;
-			for (int i=1; i<count; ++i)
-			{
-				memset(vals,0,sizeof(vals));
-#define tmplog(x,y) os::Printer::log(x, core::stringc(y).c_str())
-				const BOOL res = wglGetPixelFormatAttribiv_ARB(hdc,i,0,(UINT)nums,atts,vals);
-				if (FALSE==res)
-					continue;
-				tmplog("Pixel format ",i);
-				u32 j=0;
-				tmplog("Draw to window " , vals[j]);
-				tmplog("Draw to bitmap " , vals[++j]);
-				++j;
-				tmplog("Acceleration " , (vals[j]==WGL_NO_ACCELERATION_ARB?"No":
-					vals[j]==WGL_GENERIC_ACCELERATION_ARB?"Generic":vals[j]==WGL_FULL_ACCELERATION_ARB?"Full":"ERROR"));
-				tmplog("Need palette " , vals[++j]);
-				tmplog("Need system palette " , vals[++j]);
-				tmplog("Swap layer buffers " , vals[++j]);
-				++j;
-				tmplog("Swap method " , (vals[j]==WGL_SWAP_EXCHANGE_ARB?"Exchange":
-					vals[j]==WGL_SWAP_COPY_ARB?"Copy":vals[j]==WGL_SWAP_UNDEFINED_ARB?"Undefined":"ERROR"));
-				tmplog("Number of overlays " , vals[++j]);
-				tmplog("Number of underlays " , vals[++j]);
-				tmplog("Transparent " , vals[++j]);
-				tmplog("Transparent red value " , vals[++j]);
-				tmplog("Transparent green value " , vals[++j]);
-				tmplog("Transparent blue value " , vals[++j]);
-				tmplog("Transparent alpha value " , vals[++j]);
-				tmplog("Transparent index value " , vals[++j]);
-				tmplog("Share depth " , vals[++j]);
-				tmplog("Share stencil " , vals[++j]);
-				tmplog("Share accum " , vals[++j]);
-				tmplog("Support GDI " , vals[++j]);
-				tmplog("Support OpenGL " , vals[++j]);
-				tmplog("Double Buffer " , vals[++j]);
-				tmplog("Stereo Buffer " , vals[++j]);
-				tmplog("Pixel type " , vals[++j]);
-				tmplog("Color bits" , vals[++j]);
-				tmplog("Red bits " , vals[++j]);
-				tmplog("Red shift " , vals[++j]);
-				tmplog("Green bits " , vals[++j]);
-				tmplog("Green shift " , vals[++j]);
-				tmplog("Blue bits " , vals[++j]);
-				tmplog("Blue shift " , vals[++j]);
-				tmplog("Alpha bits " , vals[++j]);
-				tmplog("Alpha Shift " , vals[++j]);
-				tmplog("Accum bits " , vals[++j]);
-				tmplog("Accum red bits " , vals[++j]);
-				tmplog("Accum green bits " , vals[++j]);
-				tmplog("Accum blue bits " , vals[++j]);
-				tmplog("Accum alpha bits " , vals[++j]);
-				tmplog("Depth bits " , vals[++j]);
-				tmplog("Stencil bits " , vals[++j]);
-				tmplog("Aux buffers " , vals[++j]);
-				if (render_texture_supported)
-				{
-					tmplog("Bind to texture RGB" , vals[++j]);
-					tmplog("Bind to texture RGBA" , vals[++j]);
-				}
-				if (pbuffer_supported)
-				{
-					tmplog("Draw to pbuffer" , vals[++j]);
-					tmplog("Max pbuffer pixels " , vals[++j]);
-					tmplog("Max pbuffer width" , vals[++j]);
-					tmplog("Max pbuffer height" , vals[++j]);
-				}
-				if (framebuffer_sRGB_supported)
-					tmplog("Framebuffer sRBG capable" , vals[++j]);
-				if (multi_sample_supported)
-				{
-					tmplog("Samples " , vals[++j]);
-					tmplog("Sample buffers " , vals[++j]);
-				}
-				if (depth_float_supported)
-					tmplog("Depth float" , vals[++j]);
-#undef tmplog
-			}
-		}
-	}
-#endif
-#elif defined(IRR_LINUX_DEVICE)
-#endif
-}
-
-
 void COpenGLExtensionHandler::initExtensions(bool stencilBuffer)
 {
 	const f32 ogl_ver = core::fast_atof(reinterpret_cast<const c8*>(glGetString(GL_VERSION)));
@@ -882,8 +668,6 @@ bool COpenGLExtensionHandler::queryFeature(E_VIDEO_DRIVER_FEATURE feature) const
 		return (Version>=104) || FeatureAvailable[IRR_EXT_blend_func_separate];
 	case EVDF_TEXTURE_MATRIX:
 		return true;
-	case EVDF_TEXTURE_COMPRESSED_DXT:
-		return FeatureAvailable[IRR_EXT_texture_compression_s3tc];
 	case EVDF_TEXTURE_CUBEMAP:
 		return (Version >= 103) || FeatureAvailable[IRR_ARB_texture_cube_map] || FeatureAvailable[IRR_EXT_texture_cube_map];
 	case EVDF_TEXTURE_CUBEMAP_SEAMLESS:

source/Irrlicht/COpenGLExtensionHandler.h

@@ -1010,8 +1010,6 @@ class COpenGLExtensionHandler
 	//! show all features with availability
 	void dump(ELOG_LEVEL logLevel) const;
 
-	void dumpFramebufferFormats() const;
-
 	// Some variables for properties
 	bool StencilBuffer;
 	bool TextureCompressionExtension;

source/Irrlicht/CSceneManager.cpp

@@ -697,7 +697,8 @@ ISceneNode* CSceneManager::getSceneNodeFromName(const char* name, ISceneNode* st
 	if (start == 0)
 		start = getRootSceneNode();
 
-	if (!strcmp(start->getName(),name))
+	auto startName = start->getName();
+	if (startName.has_value() && startName == name)
 		return start;
 
 	ISceneNode* node = 0;

source/Irrlicht/CSkinnedMesh.cpp

@@ -3,6 +3,7 @@
 // For conditions of distribution and use, see copyright notice in irrlicht.h
 
 #include "CSkinnedMesh.h"
+#include <optional>
 #include "CBoneSceneNode.h"
 #include "IAnimatedMeshSceneNode.h"
 #include "os.h"
@@ -624,18 +625,18 @@ u32 CSkinnedMesh::getJointCount() const
 	return AllJoints.size();
 }
 
-
 //! Gets the name of a joint.
-const c8* CSkinnedMesh::getJointName(u32 number) const
-{
-	if (number >= AllJoints.size())
-		return 0;
-	return AllJoints[number]->Name.c_str();
+const std::optional<std::string> &CSkinnedMesh::getJointName(u32 number) const {
+	if (number >= getJointCount()) {
+		static const std::optional<std::string> nullopt;
+		return nullopt;
+	}
+	return AllJoints[number]->Name;
 }
 
 
 //! Gets a joint number from its name
-s32 CSkinnedMesh::getJointNumber(const c8* name) const
+std::optional<u32> CSkinnedMesh::getJointNumber(const std::string &name) const
 {
 	for (u32 i=0; i<AllJoints.size(); ++i)
 	{
@@ -643,7 +644,7 @@ s32 CSkinnedMesh::getJointNumber(const c8* name) const
 			return i;
 	}
 
-	return -1;
+	return std::nullopt;
 }
 
 
@@ -1396,7 +1397,7 @@ void CSkinnedMesh::addJoints(core::array<IBoneSceneNode*> &jointChildSceneNodes,
 	//Create new joints
 	for (u32 i=0; i<AllJoints.size(); ++i)
 	{
-		jointChildSceneNodes.push_back(new CBoneSceneNode(0, smgr, 0, i, AllJoints[i]->Name.c_str()));
+		jointChildSceneNodes.push_back(new CBoneSceneNode(0, smgr, 0, i, AllJoints[i]->Name));
 	}
 
 	//Match up parents

source/Irrlicht/CSkinnedMesh.h

@@ -8,9 +8,6 @@
 
 #include "ISkinnedMesh.h"
 #include "SMeshBuffer.h"
-#include "S3DVertex.h"
-#include "irrString.h"
-#include "matrix4.h"
 #include "quaternion.h"
 
 namespace irr
@@ -84,10 +81,10 @@ namespace scene
 		u32 getJointCount() const override;
 
 		//! Gets the name of a joint.
-		const c8* getJointName(u32 number) const override;
+		const std::optional<std::string> &getJointName(u32 number) const override;
 
 		//! Gets a joint number from its name
-		s32 getJointNumber(const c8* name) const override;
+		std::optional<u32> getJointNumber(const std::string &name) const override;
 
 		//! uses animation from another mesh
 		bool useAnimationFrom(const ISkinnedMesh *mesh) override;

source/Irrlicht/CWebGL1Driver.cpp

@@ -782,122 +782,6 @@ bool CWebGL1Driver::getColorFormatParameters(ECOLOR_FORMAT format, GLint& intern
 			*converter = CColorConverter::convert_A8R8G8B8toA8B8G8R8;
 			pixelType = GL_UNSIGNED_BYTE;
 			break;
-#ifdef GL_EXT_texture_compression_dxt1
-		case ECF_DXT1:
-			if ( WebGLExtensions.queryWebGLFeature(CWebGLExtensionHandler::IRR_WEBGL_compressed_texture_s3tc) )
-			{
-				supported = true;
-				pixelFormat = GL_RGBA;
-				pixelType = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
-			}
-			break;
-#endif
-#ifdef GL_EXT_texture_compression_s3tc
-		case ECF_DXT2:
-		case ECF_DXT3:
-			if ( WebGLExtensions.queryWebGLFeature(CWebGLExtensionHandler::IRR_WEBGL_compressed_texture_s3tc) )
-			{
-				supported = true;
-				pixelFormat = GL_RGBA;
-				pixelType = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
-			}
-			break;
-#endif
-#ifdef GL_EXT_texture_compression_s3tc
-		case ECF_DXT4:
-		case ECF_DXT5:
-			if ( WebGLExtensions.queryWebGLFeature(CWebGLExtensionHandler::IRR_WEBGL_compressed_texture_s3tc) )
-			{
-				supported = true;
-				pixelFormat = GL_RGBA;
-				pixelType = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
-			}
-			break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc
-		case ECF_PVRTC_RGB2:
-			if ( WebGLExtensions.queryWebGLFeature(CWebGLExtensionHandler::IRR_WEBGL_compressed_texture_pvrtc) )
-			{
-				supported = true;
-				pixelFormat = GL_RGB;
-				pixelType = GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
-			}
-			break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc
-		case ECF_PVRTC_ARGB2:
-			if ( WebGLExtensions.queryWebGLFeature(CWebGLExtensionHandler::IRR_WEBGL_compressed_texture_pvrtc) )
-			{
-				supported = true;
-				pixelFormat = GL_RGBA;
-				pixelType = GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
-			}
-			break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc
-		case ECF_PVRTC_RGB4:
-			if ( WebGLExtensions.queryWebGLFeature(CWebGLExtensionHandler::IRR_WEBGL_compressed_texture_pvrtc) )
-			{
-				supported = true;
-				pixelFormat = GL_RGB;
-				pixelType = GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
-			}
-			break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc
-		case ECF_PVRTC_ARGB4:
-			if ( WebGLExtensions.queryWebGLFeature(CWebGLExtensionHandler::IRR_WEBGL_compressed_texture_pvrtc) )
-			{
-				supported = true;
-				pixelFormat = GL_RGBA;
-				pixelType = GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
-			}
-			break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc2
-		case ECF_PVRTC2_ARGB2:
-			if ( WebGLExtensions.queryWebGLFeature(CWebGLExtensionHandler::IRR_WEBGL_compressed_texture_pvrtc) )
-			{
-				supported = true;
-				pixelFormat = GL_RGBA;
-				pixelType = GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG;
-			}
-			break;
-#endif
-#ifdef GL_IMG_texture_compression_pvrtc2
-		case ECF_PVRTC2_ARGB4:
-			if ( WebGLExtensions.queryWebGLFeature(CWebGLExtensionHandler::IRR_WEBGL_compressed_texture_pvrtc) )
-			{
-				supported = true;
-				pixelFormat = GL_RGBA;
-				pixelType = GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG;
-			}
-			break;
-#endif
-#ifdef GL_OES_compressed_ETC1_RGB8_texture
-		case ECF_ETC1:
-			if ( WebGLExtensions.queryWebGLFeature(CWebGLExtensionHandler::IRR_WEBGL_compressed_texture_etc1) )
-			{
-				supported = true;
-				pixelFormat = GL_RGB;
-				pixelType = GL_ETC1_RGB8_OES;
-			}
-			break;
-#endif
-#ifdef GL_ES_VERSION_3_0 // TO-DO - fix when extension name will be available
-		case ECF_ETC2_RGB:
-			supported = true;
-			pixelFormat = GL_RGB;
-			pixelType = GL_COMPRESSED_RGB8_ETC2;
-			break;
-#endif
-#ifdef GL_ES_VERSION_3_0 // TO-DO - fix when extension name will be available
-		case ECF_ETC2_ARGB:
-			supported = true;
-			pixelFormat = GL_RGBA;
-			pixelType = GL_COMPRESSED_RGBA8_ETC2_EAC;
-			break;
-#endif
 		case ECF_D16:
 			if (WebGLExtensions.queryWebGLFeature(CWebGLExtensionHandler::IRR_WEBGL_depth_texture))
 			{

source/Irrlicht/CXMeshFileLoader.cpp

@@ -594,16 +594,11 @@ bool CXMeshFileLoader::parseDataObjectFrame(CSkinnedMesh::SJoint *Parent)
 
 	CSkinnedMesh::SJoint *joint=0;
 
-	if (name.size())
-	{
-		for (u32 n=0; n < AnimatedMesh->getAllJoints().size(); ++n)
-		{
-			if (AnimatedMesh->getAllJoints()[n]->Name==name)
-			{
-				joint=AnimatedMesh->getAllJoints()[n];
-				JointID=n;
-				break;
-			}
+	if (name.size()) {
+		auto n = AnimatedMesh->getJointNumber(name.c_str());
+		if (n.has_value()) {
+			JointID = *n;
+			joint = AnimatedMesh->getAllJoints()[JointID];
 		}
 	}
 
@@ -613,7 +608,7 @@ bool CXMeshFileLoader::parseDataObjectFrame(CSkinnedMesh::SJoint *Parent)
 		os::Printer::log("creating joint ", name.c_str(), ELL_DEBUG);
 #endif
 		joint=AnimatedMesh->addJoint(Parent);
-		joint->Name=name;
+		joint->Name=name.c_str();
 		JointID=AnimatedMesh->getAllJoints().size()-1;
 	}
 	else
@@ -1121,17 +1116,8 @@ bool CXMeshFileLoader::parseDataObjectSkinWeights(SXMesh &mesh)
 
 	mesh.HasSkinning=true;
 
-	CSkinnedMesh::SJoint *joint=0;
-
-	u32 n;
-	for (n=0; n < AnimatedMesh->getAllJoints().size(); ++n)
-	{
-		if (AnimatedMesh->getAllJoints()[n]->Name==TransformNodeName)
-		{
-			joint=AnimatedMesh->getAllJoints()[n];
-			break;
-		}
-	}
+	auto n = AnimatedMesh->getJointNumber(TransformNodeName.c_str());
+	CSkinnedMesh::SJoint *joint = n.has_value() ? AnimatedMesh->getAllJoints()[*n] : nullptr;
 
 	if (!joint)
 	{
@@ -1140,7 +1126,7 @@ bool CXMeshFileLoader::parseDataObjectSkinWeights(SXMesh &mesh)
 #endif
 		n = AnimatedMesh->getAllJoints().size();
 		joint=AnimatedMesh->addJoint(0);
-		joint->Name=TransformNodeName;
+		joint->Name=TransformNodeName.c_str();
 	}
 
 	// read vertex weights
@@ -1157,7 +1143,7 @@ bool CXMeshFileLoader::parseDataObjectSkinWeights(SXMesh &mesh)
 
 	for (i=0; i<nWeights; ++i)
 	{
-		mesh.WeightJoint.push_back(n);
+		mesh.WeightJoint.push_back(*n);
 		mesh.WeightNum.push_back(joint->Weights.size());
 
 		CSkinnedMesh::SWeight *weight=AnimatedMesh->addWeight(joint);
@@ -1668,41 +1654,33 @@ bool CXMeshFileLoader::parseDataObjectAnimation()
 #ifdef _XREADER_DEBUG
 		os::Printer::log("frame name", FrameName.c_str(), ELL_DEBUG);
 #endif
-		CSkinnedMesh::SJoint *joint=0;
+		auto n = AnimatedMesh->getJointNumber(FrameName.c_str());
 
-		u32 n;
-		for (n=0; n < AnimatedMesh->getAllJoints().size(); ++n)
-		{
-			if (AnimatedMesh->getAllJoints()[n]->Name==FrameName)
-			{
-				joint=AnimatedMesh->getAllJoints()[n];
-				break;
-			}
-		}
-
-		if (!joint)
-		{
+		CSkinnedMesh::SJoint *joint;
+		if (n.has_value()) {
+			joint = AnimatedMesh->getAllJoints()[*n];
+		} else {
 #ifdef _XREADER_DEBUG
 			os::Printer::log("creating joint for animation ", FrameName.c_str(), ELL_DEBUG);
 #endif
 			joint=AnimatedMesh->addJoint(0);
-			joint->Name=FrameName;
+			joint->Name=FrameName.c_str();
 		}
 
 		joint->PositionKeys.reallocate(joint->PositionKeys.size()+animationDump.PositionKeys.size());
-		for (n=0; n<animationDump.PositionKeys.size(); ++n)
+		for (u32 n=0; n<animationDump.PositionKeys.size(); ++n)
 		{
 			joint->PositionKeys.push_back(animationDump.PositionKeys[n]);
 		}
 
 		joint->ScaleKeys.reallocate(joint->ScaleKeys.size()+animationDump.ScaleKeys.size());
-		for (n=0; n<animationDump.ScaleKeys.size(); ++n)
+		for (u32 n=0; n<animationDump.ScaleKeys.size(); ++n)
 		{
 			joint->ScaleKeys.push_back(animationDump.ScaleKeys[n]);
 		}
 
 		joint->RotationKeys.reallocate(joint->RotationKeys.size()+animationDump.RotationKeys.size());
-		for (n=0; n<animationDump.RotationKeys.size(); ++n)
+		for (u32 n=0; n<animationDump.RotationKeys.size(); ++n)
 		{
 			joint->RotationKeys.push_back(animationDump.RotationKeys[n]);
 		}

source/Irrlicht/KHR/khrplatform.h

@@ -119,7 +119,7 @@
  * This follows the return type of the function  and precedes the function
  * name in the function prototype.
  */
-#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(KHRONOS_STATIC)
+#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__)
     /* Win32 but not WinCE */
 #   define KHRONOS_APIENTRY __stdcall
 #else
@@ -153,6 +153,20 @@ typedef int64_t                 khronos_int64_t;
 typedef uint64_t                khronos_uint64_t;
 #define KHRONOS_SUPPORT_INT64   1
 #define KHRONOS_SUPPORT_FLOAT   1
+/*
+ * To support platform where unsigned long cannot be used interchangeably with
+ * inptr_t (e.g. CHERI-extended ISAs), we can use the stdint.h intptr_t.
+ * Ideally, we could just use (u)intptr_t everywhere, but this could result in
+ * ABI breakage if khronos_uintptr_t is changed from unsigned long to
+ * unsigned long long or similar (this results in different C++ name mangling).
+ * To avoid changes for existing platforms, we restrict usage of intptr_t to
+ * platforms where the size of a pointer is larger than the size of long.
+ */
+#if defined(__SIZEOF_LONG__) && defined(__SIZEOF_POINTER__)
+#if __SIZEOF_POINTER__ > __SIZEOF_LONG__
+#define KHRONOS_USE_INTPTR_T
+#endif
+#endif
 
 #elif defined(__VMS ) || defined(__sgi)
 
@@ -235,14 +249,21 @@ typedef unsigned short int     khronos_uint16_t;
  * pointers are 64 bits, but 'long' is still 32 bits. Win64 appears
  * to be the only LLP64 architecture in current use.
  */
-#ifdef _WIN64
+#ifdef KHRONOS_USE_INTPTR_T
+typedef intptr_t               khronos_intptr_t;
+typedef uintptr_t              khronos_uintptr_t;
+#elif defined(_WIN64)
 typedef signed   long long int khronos_intptr_t;
 typedef unsigned long long int khronos_uintptr_t;
-typedef signed   long long int khronos_ssize_t;
-typedef unsigned long long int khronos_usize_t;
 #else
 typedef signed   long  int     khronos_intptr_t;
 typedef unsigned long  int     khronos_uintptr_t;
+#endif
+
+#if defined(_WIN64)
+typedef signed   long long int khronos_ssize_t;
+typedef unsigned long long int khronos_usize_t;
+#else
 typedef signed   long  int     khronos_ssize_t;
 typedef unsigned long  int     khronos_usize_t;
 #endif

source/Irrlicht/SB3DStructs.h

@@ -39,7 +39,7 @@ struct SB3dChunk
 
 struct SB3dTexture
 {
-	core::stringc TextureName;
+	std::string TextureName;
 	s32 Flags;
 	s32 Blend;
 	f32 Xpos;

source/Irrlicht/mt_opengl_loader.cpp

@@ -1,3 +1,6 @@
+// This code was generated by scripts/BindingGenerator.lua
+// Do not modify it, modify and run the generator instead.
+
 #include "mt_opengl.h"
 #include <string>
 #include <sstream>
@@ -684,7 +687,6 @@ void OpenGLProcedures::LoadAllProcedures(irr::video::IContextManager *cmgr)
 	if (!MultiDrawElementsIndirectCount) MultiDrawElementsIndirectCount = (PFNGLMULTIDRAWELEMENTSINDIRECTCOUNTPROC_MT)cmgr->getProcAddress("glMultiDrawElementsIndirectCount");
 	if (!MultiDrawElementsIndirectCount) MultiDrawElementsIndirectCount = (PFNGLMULTIDRAWELEMENTSINDIRECTCOUNTPROC_MT)cmgr->getProcAddress("glMultiDrawElementsIndirectCountARB");
 	if (!PolygonOffsetClamp) PolygonOffsetClamp = (PFNGLPOLYGONOFFSETCLAMPPROC_MT)cmgr->getProcAddress("glPolygonOffsetClamp");
-	if (!GenPerfMonitorsEX) GenPerfMonitorsEX = (PFNGLGENPERFMONITORSEXPROC_MT)cmgr->getProcAddress("glGenPerfMonitorsEX");
 	if (!PrimitiveBoundingBox) PrimitiveBoundingBox = (PFNGLPRIMITIVEBOUNDINGBOXPROC_MT)cmgr->getProcAddress("glPrimitiveBoundingBoxARB");
 	if (!GetTextureHandle) GetTextureHandle = (PFNGLGETTEXTUREHANDLEPROC_MT)cmgr->getProcAddress("glGetTextureHandleARB");
 	if (!GetTextureSamplerHandle) GetTextureSamplerHandle = (PFNGLGETTEXTURESAMPLERHANDLEPROC_MT)cmgr->getProcAddress("glGetTextureSamplerHandleARB");
@@ -757,12 +759,15 @@ void OpenGLProcedures::LoadAllProcedures(irr::video::IContextManager *cmgr)
 	if (!TexPageCommitment) TexPageCommitment = (PFNGLTEXPAGECOMMITMENTPROC_MT)cmgr->getProcAddress("glTexPageCommitmentARB");
 
 	// OpenGL 3 way to enumerate extensions
-	int ext_count = 0;
+	GLint ext_count = 0;
 	GetIntegerv(NUM_EXTENSIONS, &ext_count);
 	extensions.reserve(ext_count);
-	for (int k = 0; k < ext_count; k++)
-		extensions.emplace((char *)GetStringi(EXTENSIONS, k));
-	if (ext_count)
+	for (GLint k = 0; k < ext_count; k++) {
+		auto tmp = GetStringi(EXTENSIONS, k);
+		if (tmp)
+			extensions.emplace((char*)tmp);
+	}
+	if (!extensions.empty())
 		return;
 
 	// OpenGL 2 / ES 2 way to enumerate extensions
@@ -774,4 +779,5 @@ void OpenGLProcedures::LoadAllProcedures(irr::video::IContextManager *cmgr)
 	std::string tmp;
 	while (std::getline(ext_ss, tmp, ' '))
 		extensions.emplace(tmp);
+
 }