write conf scripts

The configuration logic was violating alignment rules, and will be
rewritten.

.clang-format

@@ -1,3 +1,7 @@
+# Copyright (c) 2025 Quinn.
+# This is a file from the project MCA-Selector-Lite and is
+# licensed under the MIT Licence. See included LICENSE file for details.
+#
 ---
 # ---------------------------
 # general style settings
@@ -21,9 +25,9 @@ AlignTrailingComments:        true
 AlignConsecutiveMacros:       AcrossEmptyLines
 AlignEscapedNewlines:         Left
 AlignArrayOfStructures:       Left
-AlignConsecutiveAssignments:  None
+AlignConsecutiveAssignments:  Consecutive
 AlignConsecutiveBitFields:    AcrossEmptyLines
-AlignConsecutiveDeclarations: None
+AlignConsecutiveDeclarations: Consecutive
 AlignConsecutiveShortCaseStatements:
   Enabled: true
 
@@ -31,9 +35,9 @@ AlignConsecutiveShortCaseStatements:
 # short constructs on a single line
 # ---------------------------
 AllowShortBlocksOnASingleLine:       Always
-AllowShortFunctionsOnASingleLine:    All
+AllowShortFunctionsOnASingleLine:    None
 AllowShortLambdasOnASingleLine:      All
-AllowShortIfStatementsOnASingleLine: AllIfsAndElse
+AllowShortIfStatementsOnASingleLine: Never
 AllowShortCaseLabelsOnASingleLine:   true
 AllowShortEnumsOnASingleLine:        true
 AllowShortLoopsOnASingleLine:        true
@@ -58,7 +62,7 @@ BraceWrapping:
   AfterCaseLabel:        false
   AfterClass:            false
   AfterEnum:             false
-  AfterFunction:         false
+  AfterFunction:         true
   AfterNamespace:        false
   AfterObjCDeclaration:  false
   AfterStruct:           false
@@ -87,7 +91,7 @@ BinPackArguments:  true
 DerivePointerAlignment: false
 PointerAlignment:   Right
 ReferenceAlignment: Pointer
-QualifierAlignment: Right
+QualifierAlignment: Left
 
 # ---------------------------
 # include settings and sorting
@@ -96,10 +100,6 @@ IncludeIsMainSourceRegex: ''
 IncludeIsMainRegex:       '([-_](test|unittest))?$'
 IncludeBlocks:      Regroup
 IncludeCategories:
-  - Regex:         '^<glad/gl\.h>'
-    Priority:      1
-    SortPriority:  0
-    CaseSensitive: true
   - Regex:         '^<.*\.h>'
     Priority:      2
     SortPriority:  0

.editorconfig

@@ -1,5 +1,6 @@
-# Copyright (c) 2025 Quinn
-# Licensed under the MIT Licence. See LICENSE for details
+# Copyright (c) 2025 Quinn.
+# This is a file from the project MCA-Selector-Lite and is
+# licensed under the MIT Licence. See included LICENSE file for details.
 
 [*]
 charset = utf-8
@@ -15,6 +16,10 @@ indent_size = tab
 indent_style = tab
 indent_size = tab
 
-[*.{yaml,json}]
+[*.{json}]
+indent_style = tab
+indent_size = tab
+
+[*.{yaml}]
 indent_style = space
 intent_size = 2

.github/Dockerfile

@@ -1,39 +0,0 @@
-# Copyright (c) 2025 Quinn
-# Licensed under the MIT Licence. See LICENSE for details
-
-# docker buildx build . -t ghcr.io/thepigeongenerator/mcaselector-lite:latest
-# docker push ghcr.io/thepigeongenerator/mcaselector-lite:latest
-FROM debian:testing-slim
-LABEL org.opencontainers.image.source="https://github.com/thepigeongenerator/mcaselector-lite"
-LABEL org.opencontainers.image.source-path="/.github/Dockerfile"
-
-# install the dependencies
-RUN \
-	echo 'APT::Install-Recommends "false";' > /etc/apt/apt.conf.d/no-recommends; \
-	echo 'APT::Install-Suggests "false";' >> /etc/apt/apt.conf.d/no-recommends;  \
-	dpkg --add-architecture i386;                                                \
-	apt-get update -qq;                                                          \
-	apt-get install -y                                                           \
-		ca-certificates                                                         \
-		binutils                                                                \
-		git curl                                                                \
-		zip unzip                                                               \
-		wine wine64                                                             \
-		make cmake pkg-config                                                   \
-		gcc gcc-multilib g++ mingw-w64                                          \
-		libc6-dev                                                               \
-		libxinerama-dev libxcursor-dev libxi-dev libxrandr-dev libglu1-mesa-dev \
-		libglfw3                                                                \
-		nodejs;                                                                 \
-	apt-get clean;                                                                     \
-	rm -rf /var/lib/apt/lists/* /usr/share/doc/* /usr/share/man/* /usr/share/locale/*; \
-	rm -rf /usr/lib/node_modules/npm/docs /usr/lib/node_modules/npm/html;              \
-	rm -rf /usr/share/wine/fonts /usr/share/wine/mono;                                 \
-	find /usr -name "*.py" -delete;                                                    \
-	find /usr/lib/wine -name "*.a" -delete;                                            \
-	find /usr/lib/wine -name "*.la" -delete;                                           \
-	find /usr/lib/wine -name "*.def" -delete;                                          \
-	strip /usr/bin/wine* || true;                                                      \
-    rm -rf /var/cache/* /var/log/*;
-
-CMD ["bash"]

.github/workflows/ci.yaml

@@ -1,53 +1,57 @@
-# Copyright (c) 2025 Quinn
-# Licensed under the MIT Licence. See LICENSE for details
 name: CI
 on:
   push:
-    branches:
-      - '**'
-  pull_request:
-    branches:
-      - '**'
-env:
-  VCPKG_DISABLE_METRICS: 1
-  VCPKG_ROOT: ${{github.workspace}}/.vcpkg
-  DEPS_VCPKG: glfw3:x64-linux-dynamic glfw3:x64-mingw-static
-  WINEPREFIX: /tmp/wineprefix
+    branches: [main]
+
 jobs:
-  #
-  # the mega job containing all things we need to do, since setting up a single system is more efficient than installing the same stuff on multiple ones
-  #
-  exec-ci-tasks:
-    runs-on: ubuntu-latest
-    container: ghcr.io/thepigeongenerator/mcaselector-lite:latest
+  compile-and-test:
+    strategy:
+      fail-fast: false # disable fail fast, so feedback is provided for all matrix combinations
+      matrix:
+        include:
+          - os: ubuntu-latest
+            cc: cc
+          - os: ubuntu-24.04-arm
+            cc: cc
+          - os: windows-latest
+            cc: gcc
+          - os: windows-11-arm
+            cc: gcc
+          # - os: macos-latest
+          #   cc: cc
+    env:
+        CC: ${{matrix.cc}}
+    runs-on: ${{matrix.os}}
     steps:
-      #
-      # general setup
-      #
-      - uses: actions/checkout@v4
-      #
-      # VCPKG setup
-      #
-      - id: gen-keys
-        run: echo "HASH_VCPKG=vcpkg-$(echo "$DEPS_VCPKG" | sha256sum | cut -d ' ' -f1)" >>"$GITHUB_OUTPUT"
-      # load the vcpkg cache
-      - uses: actions/cache@v4
-        id: vcpkg-cache
+      - uses: actions/checkout@v5
         with:
-          path: ${{env.VCPKG_ROOT}}
-          key: ${{steps.gen-keys.outputs.HASH_VCPKG}}
-          restore-keys: vcpkg-
-      # setup vcpkg if the cache didn't hit
-      - if: steps.vcpkg-cache.outputs.cache-hit != 'true'
+          submodules: true
+          fetch-depth: 1
+
+      - name: "Linux: install deps"
+        if: runner.os == 'Linux'
         run: |
-          git clone https://github.com/microsoft/vcpkg.git "$VCPKG_ROOT"
-          "$VCPKG_ROOT/bootstrap-vcpkg.sh"
-          "$VCPKG_ROOT/vcpkg" install $DEPS_VCPKG
-      # compilation (using bulk compilation)
-      - run: make all CALL=compile -j || echo "JOB_FAILED=1" >>"$GITHUB_ENV"
-      # executing unit tests (using bulk flags)
-      - run: make all CALL=run DEBUG=test -j || echo "JOB_FAILED=1" >>"$GITHUB_ENV"
-      # exit if any errors occurred
-      - name: exit on errors
-        run: |
-          [ "$JOB_FAILED" != "1" ]
+          sudo apt update
+          sudo apt install -y libwayland-dev libxkbcommon-dev xorg-dev cmake xxd
+
+      - name: get submodule hash
+        id: get-hash
+        run: echo "HASH=$(git submodule | sha1sum | cut -d' ' -f1)" >$GITHUB_OUTPUT
+        shell: bash
+
+      - uses: actions/cache@v4
+        id: cache-deps
+        with:
+          path: lib/obj/
+          # I swear to god, if runner.arch displays x64 for x86_64, I will eat a potato.
+          # note: it is... fucking shit.
+          key: ${{runner.os}}_${{runner.arch}}-lib/obj-${{steps.get-hash.outputs.HASH}}
+          restore-keys: ${{runner.os}}_${{runner.arch}}-lib/obj-
+
+      - run: make -Bj libs
+        if: steps.cache-deps.outputs.cache-hit != 'true' && runner.os != 'Windows'
+      - run: make -Bj2 libs # compile fewer cores, to save memory.
+        if: steps.cache-deps.outputs.cache-hit != 'true' && runner.os == 'Windows'
+
+      - run: make -j all
+      - run: make -j check

.github/workflows/release.yaml

@@ -1,49 +0,0 @@
-# Copyright (c) 2025 Quinn
-# Licensed under the MIT Licence. See LICENSE for details
-name: release
-on:
-  release:
-    types:
-      - published
-  workflow_dispatch:
-    inputs:
-      release_tag:
-        required: true
-        description: the tag to release for
-        default: ""
-jobs:
-  release:
-    runs-on: ubuntu-latest
-    container:
-      image: ghcr.io/thepigeongenerator/mcaselector-lite:latest
-    strategy:
-      matrix:
-        include:
-          - kernel: linux
-            march: x86_64
-            cc: x86_64-linux-gnu-gcc
-          - kernel: mingw
-            march: x86_64
-            cc: x86_64-w64-mingw32-gcc
-    env:
-      OUT: ${{github.workspace}}/mcaselector-lite-${{matrix.march}}-${{matrix.kernel}}-${{github.event.release.tag_name || github.event.inputs.release_tag}}.zip
-    steps:
-      - uses: actions/checkout@v4
-      - name: compile ${{matrix.march}}-${{matrix.kernel}}
-        run: make compile MARCH=${{matrix.march}} KERNEL=${{matrix.kernel}} CC=${{matrix.cc}} -j
-      - name: compress binary information
-        run: |
-          cd "${{github.workspace}}/bin/${{matrix.march}}-${{matrix.kernel}}/${{github.event.release.tag_name || github.event.inputs.release_tag}}/rel/" || exit 1
-          zip -rv "${{env.OUT}}" *
-          cd -
-      # upload to the release
-      - name: upload release
-        uses: softprops/action-gh-release@v2
-        if: ${{!env.ACT}}
-        with:
-          files: ${{env.OUT}}
-      # upload to the artefact directory if running locally with act
-      - uses: actions/upload-artifact@v4
-        if: ${{env.ACT}}
-        with:
-          path: ${{env.OUT}}

.gitignore

@@ -1,11 +1,13 @@
-# Copyright (c) 2025 Quinn
-# Licensed under the MIT Licence. See LICENSE for details
+# Copyright (c) 2025 Quinn.
+# This is a file from the project MCA-Selector-Lite and is
+# licensed under the MIT Licence. See included LICENSE file for details.
 
 # ignore all dotfiles by default
 .*
 
 # unhide dotfiles we want to keep
 !.gitignore
+!.gitmodules
 !.editorconfig
 !.clang-format
 !/.github/
@@ -14,9 +16,9 @@
 *.o
 *.d
 *.out
+*.lock
 /bin/
 /obj/
-/test/bin/
-/test/obj/
-*.lock
+/lib/obj/
 compile_commands.json
+compile_commands.events.json

.gitmodules

@@ -0,0 +1,11 @@
+# Copyright (c) 2025 Quinn.
+# This is a file from the project MCA-Selector-Lite and is
+# licensed under the MIT Licence. See included LICENSE file for details.
+
+[submodule "lib/glfw"]
+	path = lib/glfw
+	url = https://github.com/glfw/glfw
+
+[submodule "lib/libarchive"]
+	path = lib/libarchive
+	url = https://github.com/libarchive/libarchive

Makefile

@@ -0,0 +1,105 @@
+# Copyright (c) 2025 Quinn.
+# This is a file from the project MCA-Selector-Lite and is
+# licensed under the MIT Licence. See included LICENSE file for details.
+
+SHELL = /bin/sh
+.SUFFIXES:
+
+NAME    = mcaselector-lite
+
+CC     ?= cc
+RM     ?= rm -vf
+CMAKE  ?= cmake -G 'Unix Makefiles'
+
+CPPFLAGS ?= -DNDEBUG
+CFLAGS   ?= -O2
+LDFLAGS  ?= -flto
+
+CPPFLAGS += -DGLFW_INCLUDE_NONE
+CPPFLAGS += -Iinclude -Ilib/glad/include -Ilib/glfw/include -Ilib/libarchive/libarchive
+LDFLAGS  += -Llib/obj/glfw/src -Llib/obj/libarchive/libarchive
+LDLIBS   += -lglfw3 -larchive -lm
+CFLAGS   += -std=gnu99 -g -MMD -MP
+CFLAGS   += -Wall -Wextra -Wpedantic -Wno-pointer-arith
+
+# detect if we're compiling on Windows, meaning
+# a lot of things considered "standard" are unavailable.
+ifeq ($(OS),Windows_NT)
+NAME   := $(NAME).exe
+LDLIBS += -lopengl32 -lgdi32
+$(warning Detected  Windows_NT, please refer to the documentation if you encounter issues.)
+# in the case of Mac OS X
+else ifeq ($(shell uname -s),Darwin)
+LDLIBS += -framework Coca -framework OpenGL -framework IOKit
+$(info Mac OS X detected.)
+endif
+
+# find all the source files using wildcards
+# TODO: find a better method to find all source files
+# NOTE: MS-DOS and MS-Windows uses backslash `\`, this might break.
+RES  := $(wildcard res/*)
+SRC  := $(wildcard src/*.c src/*/*.c src/*/*/*.c src/*/*/*/*.c src/*/*/*/*/*.c src/*/*/*/*/*/*.c src/*/*/*/*/*/*/*.c src/*/*/*/*/*/*/*/*.c)
+SRC  += lib/glad/src/gl.c
+TSRC := $(wildcard test/*.c test/*/*.c test/*/*/*.c test/*/*/*/*.c test/*/*/*/*/*.c test/*/*/*/*/*/*.c test/*/*/*/*/*/*/*.c test/*/*/*/*/*/*/*/*.c)
+
+OBJ   := $(RES:%=obj/%.o) $(SRC:%.c=obj/%.o)
+TOBJ  := $(TSRC:%.c=obj/%.o)
+
+# TODO: potentially automatically detect whether we should compile libs, or if we can just go ahead.
+
+.PHONY: all libs check clean clean-libs
+all: bin/$(NAME)
+libs: lib/obj/glfw/ lib/obj/libarchive/
+check: bin/TEST_$(NAME); ./$<
+clean:;      @-$(RM) -r bin/ obj/
+clean-libs:; @-$(RM) -r lib/obj/
+
+.PHONY:
+install: all
+ifneq ($(OS),Windows_NT)
+	# TODO: POSIX-compliant installation
+else
+	# TODO: WINDOWS_NT installation
+endif
+
+.PHONY:
+install-strip: install
+	# TODO: strip the produced installation
+
+# compiles the libraries using cmake
+lib/obj/%/: lib/%/
+	$(CMAKE) -S $< -B $@
+	$(MAKE) -C $@
+
+# link together a runtime binary
+bin/$(NAME): $(OBJ)
+	$(info [LD]	$@)
+	@mkdir -p $(@D)
+	@$(CC) -o $@ $^ $(LDFLAGS) $(LDLIBS)
+
+# link together a testing binary
+bin/TEST_$(NAME): $(TOBJ) $(filter-out obj/src/main.o,$(OBJ))
+	$(info [LD]	$@)
+	@mkdir -p $(@D)
+	@$(CC) -o $@ $^ $(LDFLAGS) $(LDLIBS)
+
+obj/res/%.c: res/%
+	$(info [XXD]	$@)
+	@mkdir -p $(@D)
+	@cd res/ && xxd -i $(patsubst res/%,%,$<) $(abspath $@)
+
+obj/%.o: %.c
+	$(info [CC]	$@)
+	@mkdir -p $(@D)
+	@$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
+obj/%.o: obj/%.c
+	$(info [CC]	$@)
+	@mkdir -p $(@D)
+	@$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
+# Include the generated dependency files.
+# Which creates rules for all dependencies,
+# as a result updating an .o file when a .h is updated.
+-include $(OBJ:%.o=%.d)
+-include $(TOBJ:%.o=%.d)

docs/README.md

@@ -7,8 +7,7 @@ A from-scratch rewrite of [mcaselector](https://github.com/Querz/mcaselector) in
 [![licence](https://img.shields.io/github/license/thepigeongenerator/mcaselector-lite.svg)](https://github.com/thepigeongenerator/mcaselector-lite/blob/main/LICENSE)
 [![issues](https://img.shields.io/github/issues/thepigeongenerator/mcaselector-lite.svg)](https://github.com/thepigeongenerator/mcaselector-lite/issues/)
 
-[![CI](https://github.com/thepigeongenerator/mcaselector-lite/actions/workflows/ci.yaml/badge.svg)](https://github.com/thepigeongenerator/mcaselector-lite/actions/workflows/ci.yaml)
-[![release](https://github.com/thepigeongenerator/mcaselector-lite/actions/workflows/release.yaml/badge.svg)](https://github.com/thepigeongenerator/mcaselector-lite/actions/workflows/release.yaml)
+[![CI-status](https://github.com/thepigeongenerator/mcaselector-lite/actions/workflows/ci.yaml/badge.svg)](https://github.com/thepigeongenerator/mcaselector-lite/actions/workflows/ci.yaml)
 
 ## what does it do
 MCA selector lite is a tool used to edit [region files](https://minecraft.wiki/w/Region_file_format) of your [Minecraft java](https://minecraft.wiki/w/Java_Edition) worlds.
@@ -20,3 +19,14 @@ MCA selector is a tool written in Java. Where it depends upon JRE21 and JavaFX.
 The goal of this project is to create a version of the original MCA selector, but written in C, leveraging the improved performance due to native execution and more low-level control.
 I have picked C as the language for the core portions of the application, where I prefer fine-grained control with little abstractions.
 This version is not intended to serve to entirely replace MCA selector, just to offer an alternative. Both tools will have their strengths and weaknesses.
+
+# planned features
+- [ ] (very basic) world map viewing (Y level + surface)
+- [ ] filtering chunks based on time spent in them
+- [ ] chunk-level removal of data.
+- [ ] CLI-only version
+- [ ] (idea) change chunk compression
+- [ ] (idea) view chunk metadata
+- [ ] (idea) change chunk sNBT (this'll be tricky to add)
+*note that entries marked with `(idea)` aren't guaranteed to be implemented.
+Due to their viability and usefulness is still to be measured.*

docs/dev/correct-c.md

@@ -0,0 +1,13 @@
+# Correct C
+A monster list about bad code practices for the absolute beginners.
+Things obviously should be taken with a grain of salt, just stating the obvious.
+
+- Functions without parameters will be defined with `void` in the parameter list, as opposed to leaving it empty. (e.i. `(void)` rather than `()`)
+- (public-facing) names mustn't be prefixed with `_`, this is a reserved identifier.
+- `typedef`s mustn't be suffixed with `_t`, this is a POSIX reserved identifier.
+- `typedef`s are discouraged, unless the name alias is clear in what it stores. (e.i. `u32` for a 32 bit unsigned integer)
+- Functions should do one thing, and do it well.
+- `inline` functions should serve as a replacement for macro definitions, don't put things in here that you wouldn't put in a macro. (block ≤5 lines)
+- Mark all implementations in a `*.c` file with `static` if there isn't a matching definition in a `*.h` file. (unless there's a clear reason to)
+- When a function parameter takes in a pointer, and does not modify the pointed at data, a const pointer should be used. (`const int *ptr`)
+- Try to limit yourself at ~112 columns, but generally avoid overly long lines.

docs/dev/styleref.md

@@ -1,6 +1,7 @@
 # mcaselector-lite style reference
 ## contents
-- [recommended tool chains](#recommended-tool-chains)
+- [recommended tools](#recommended-tools)
+- [code information](#code-information)
 - [style guide](#style-guide)
 
 ### recommended tools
@@ -10,17 +11,24 @@
 - clang-tidy
 - linux / unix-like machine
 
-### style guide
-- parameterless functions should have the `void` parameter.[^cstd]
-- symbols mustn't be prefixed with `_`; this is a C standard reserved symbol.[^cstd]
-- typedefs (or anything else for that matter) mustn't be suffixed with `_t`, this is reserved by POSIX.[^cstd]
-- functions should do one thing, and do that thing well.[^cstd]
-- K&R style braces/indentation[^wikiindent]
-- typedefs are discouraged
-- snake_case is used for all user-defined symbols. Macros are often all-uppercase, same goes for enums and other types of compile-time constants.
-- tabs are used for indentation, spaces are used for alignment.
-- British spelling is preferred, but not enforced. What is enforced is that British variants of the symbols are available.
-- commits should attempt to convey clearly what is being changed, for the sanity of the maintainer(s).
+### code information
+The project is written in the [GNU dialect](https://gcc.gnu.org/onlinedocs/gcc/C-Dialect-Options.html) of [C99](https://www.en.cppreference.com/w/c/99.html).
+Where we have dependencies on:
+| library                           | summary                                                 |
+|:----------------------------------|:--------------------------------------------------------|
+| [libarchive](libarchive.org)      | compression / decompression of various formats.         |
+| [glfw](https://www.glfw.org/)     | window creation / input handling.                       |
+| [openGL](https://www.opengl.org/) | hardware accelleration, for handling graphics.          |
 
-[cstd]: this is a general C practice, included since it is something commonly done incorrectly.
-[wikiindent]: <https://en.wikipedia.org/wiki/Indentation_style>
+It is intended to be platform-agnostic, within reason. But the main focus is for [Linux](https://wikipedia.org/wiki/Linux) systems with [x86_64](https://wikipedia.org/wiki/X86-64) architecture.
+Within [types.h](/src/types.h) there live definitions for fixed-width integer types.
+
+### style guide
+- Code must be written correctly, read [Correct C](./correct-c.md) if more information is required.
+- `snake_casing` is used, with no [Hungarian notation](https://en.m.wikipedia.org/wiki/Hungarian_notation). (macros are all-uppercase, with a few exceptions)
+- [K&R style braces/indentation](https://en.wikipedia.org/wiki/Indentation_style) should be used.
+- For indentation tabs are used, and are assumed to be 8 spaces wide. For alignment spaces should be used.
+- A space should precede a pointer `*`. Where it is attached to the name, rather than the type. For `const` clarity, and chains such as: `u8 *a, *b, *c;`. This is true for functions as well: `void *malloc(size_t n);`
+- Generally speaking, British spelling is preferred. Define potential macros for, or when using alternate dialects.
+- Grammar should be correct. (`don't` or `do not`, not `dont`)
+- Commits should attempt to convey clearly what is being changed, for the sanity of the maintainer(s).

docs/mc-data-spec.md

@@ -7,21 +7,22 @@ A tag is an individual part of the data tree, where the first byte is the ID, fo
 note: UUID are stored as an integer array.
 
 ### tag types
-| ID   | tag name     | payload specification               |
-|-----:|:-------------|:------------------------------------|
-|  `0` | `end`        | -                                   |
-|  `1` | `byte`       | `int8_t`                            |
-|  `2` | `short`      | `int16_t` (BE)                      |
-|  `3` | `int`        | `int32_t` (BE)                      |
-|  `4` | `long`       | `int64_t` (BE)                      |
-|  `5` | `float`      | `float`   (BE)                      |
-|  `6` | `double`     | `double`  (BE)                      |
-|  `7` | `byte array` | `int32_t`     (len) -> `int8_t`     |
-|  `8` | `string`     | `uint16_t`    (len) -> `UTF-8`      |
-|  `9` | `list`       | ID: `int32_t` (len) -> ID           |
-| `10` | `compound`   | list of tags delimited with end tag |
-| `11` | `int array`  | `int32_t`     (len) -> `int32_t`    |
-| `12` | `long array` | `int32_t`     (len) -> `int64_t`    |
+| ID    | tag name     | payload specification               |
+|:-----:|:-------------|:------------------------------------|
+| `0x0` | `end`        | -                                   |
+| `0x1` | `byte`       | `int8_t`                            |
+| `0x2` | `short`      | `int16_t` (BE[^be])                 |
+| `0x3` | `int`        | `int32_t` (BE)                      |
+| `0x4` | `long`       | `int64_t` (BE)                      |
+| `0x5` | `float`      | `float`   (BE)                      |
+| `0x6` | `double`     | `double`  (BE)                      |
+| `0x7` | `byte array` | `int32_t`     (len) -> `int8_t`     |
+| `0x8` | `string`     | `uint16_t`    (len) -> `UTF-8`      |
+| `0x9` | `list`       | ID: `int32_t` (len) -> ID           |
+| `0xA` | `compound`   | list of tags delimited with end tag |
+| `0xB` | `int array`  | `int32_t`     (len) -> `int32_t`    |
+| `0xC` | `long array` | `int32_t`     (len) -> `int64_t`    |
+[^be]: [big-endian](https://en.wikipedia.org/wiki/Endianness)
 
 ## world data
 There is a difference between \*.mca and \*.mcr files.
@@ -38,13 +39,8 @@ Where \*.mca files are the newer variant.
 
 ### coordinate conversions
 ```c
-// block->chunk:
-return (x / 16) - sgn(x);
-return (x >> 4) - (x & 0x80000000);
-
-// chunk->region:
-return (x / 32) - sgn(x);
-return (x >> 5) - (x & 0x80000000);
+return (x >> 4); // block->chunk
+return (x >> 5); // chunk->region
 ```
 
 
@@ -85,10 +81,10 @@ unsigned offs = bit & 63;               // calc the offset within the segment
 // calculate the correct index
 uint16_t idx;
 idx = (block_states->dat[sgmt] >> offs);                                // acquire the data in the segment
-idx |= !((offs + w) > 64) ? 0 : block_states->dat[sgmt+1] << (64-offs); // complete with the data from the other segment, if present
+idx |= -!!((offs + w) > 64) & (block_states->dat[sgmt+1] << (64-offs)); // complete with the data from the other segment, if present
 idx &= (1 << w) - 1;                                                    // truncate the data to only contain what we desire.
 
-blockdat blk = block_states->palette.dat[idx];
+struct blockdat blk = block_states->palette.dat[idx];
 ```
 
 ### MCR format specification
@@ -102,8 +98,8 @@ The offset of a chunk (x,z) (in chunk coordinates) in the first table can be fou
 | data  | locations (4B)     | timestamps (4B)     | chunks and unused space |
 
 ##### chunk location
-Location info for a chunk is stored as a 32 bit big-endian integer, where the first three bytes are an offset in 4KiB sectors from the start of the file.
-The last byte gives the length of the chunk in 4KiB sectors. (rounded up, of course). Where chunks are always less than 1MiB in size.
+Location info for a chunk is stored as a 32 bit big-endian integer, where the first three bytes (0xFFFFFF00) are an offset in 4KiB sectors from the start of the file.
+The last byte (0x000000FF) gives the length of the chunk in 4KiB sectors. (rounded up, of course). Where chunks are always less than 1MiB in size.
 If a chunk isn't present in the region file (e.g. because it hasn't been generated or migrated yet), both fields are zero.
 
 ##### timestamps

include/endian.h

@@ -0,0 +1,40 @@
+/* Copyright (c) 2025 Quinn
+ * Licensed under the MIT Licence. See LICENSE for details */
+#ifndef PORTABLE_ENDIAN_H
+#define PORTABLE_ENDIAN_H 1
+
+#if defined(__GNUC__)
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define le16toh(x) __uint16_identity(x)
+#define le32toh(x) __uint32_identity(x)
+#define le64toh(x) __uint64_identity(x)
+#define htole16(x) __uint16_identity(x)
+#define htole32(x) __uint32_identity(x)
+#define htole64(x) __uint64_identity(x)
+#define be16toh(x) __builtin_bswap16(x)
+#define be32toh(x) __builtin_bswap32(x)
+#define be64toh(x) __builtin_bswap64(x)
+#define htobe16(x) __builtin_bswap16(x)
+#define htobe32(x) __builtin_bswap32(x)
+#define htobe64(x) __builtin_bswap64(x)
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+#define le16toh(x) __builtin_bswap16(x)
+#define le32toh(x) __builtin_bswap32(x)
+#define le64toh(x) __builtin_bswap64(x)
+#define htole16(x) __builtin_bswap16(x)
+#define htole32(x) __builtin_bswap32(x)
+#define htole64(x) __builtin_bswap64(x)
+#define be16toh(x) __uint16_identity(x)
+#define be32toh(x) __uint32_identity(x)
+#define be64toh(x) __uint64_identity(x)
+#define htobe16(x) __uint16_identity(x)
+#define htobe32(x) __uint32_identity(x)
+#define htobe64(x) __uint64_identity(x)
+#else
+#error machine architecture unsupported! Expected either big-endian or little-endian, make sure to use a compiler which defines __BYTE_ORDER__ (like clang or gcc)
+#endif /* byte order */
+
+#else
+#error GNU C is unavailable
+#endif /* __GNUC__ */
+#endif /* PORTABLE_ENDIAN_H */

lib/glad/include/KHR/khrplatform.h

@@ -0,0 +1,311 @@
+#ifndef __khrplatform_h_
+#define __khrplatform_h_
+
+/*
+** Copyright (c) 2008-2018 The Khronos Group Inc.
+**
+** Permission is hereby granted, free of charge, to any person obtaining a
+** copy of this software and/or associated documentation files (the
+** "Materials"), to deal in the Materials without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Materials, and to
+** permit persons to whom the Materials are furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be included
+** in all copies or substantial portions of the Materials.
+**
+** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+*/
+
+/* Khronos platform-specific types and definitions.
+ *
+ * The master copy of khrplatform.h is maintained in the Khronos EGL
+ * Registry repository at https://github.com/KhronosGroup/EGL-Registry
+ * The last semantic modification to khrplatform.h was at commit ID:
+ *      67a3e0864c2d75ea5287b9f3d2eb74a745936692
+ *
+ * Adopters may modify this file to suit their platform. Adopters are
+ * encouraged to submit platform specific modifications to the Khronos
+ * group so that they can be included in future versions of this file.
+ * Please submit changes by filing pull requests or issues on
+ * the EGL Registry repository linked above.
+ *
+ *
+ * See the Implementer's Guidelines for information about where this file
+ * should be located on your system and for more details of its use:
+ *    http://www.khronos.org/registry/implementers_guide.pdf
+ *
+ * This file should be included as
+ *        #include <KHR/khrplatform.h>
+ * by Khronos client API header files that use its types and defines.
+ *
+ * The types in khrplatform.h should only be used to define API-specific types.
+ *
+ * Types defined in khrplatform.h:
+ *    khronos_int8_t              signed   8  bit
+ *    khronos_uint8_t             unsigned 8  bit
+ *    khronos_int16_t             signed   16 bit
+ *    khronos_uint16_t            unsigned 16 bit
+ *    khronos_int32_t             signed   32 bit
+ *    khronos_uint32_t            unsigned 32 bit
+ *    khronos_int64_t             signed   64 bit
+ *    khronos_uint64_t            unsigned 64 bit
+ *    khronos_intptr_t            signed   same number of bits as a pointer
+ *    khronos_uintptr_t           unsigned same number of bits as a pointer
+ *    khronos_ssize_t             signed   size
+ *    khronos_usize_t             unsigned size
+ *    khronos_float_t             signed   32 bit floating point
+ *    khronos_time_ns_t           unsigned 64 bit time in nanoseconds
+ *    khronos_utime_nanoseconds_t unsigned time interval or absolute time in
+ *                                         nanoseconds
+ *    khronos_stime_nanoseconds_t signed time interval in nanoseconds
+ *    khronos_boolean_enum_t      enumerated boolean type. This should
+ *      only be used as a base type when a client API's boolean type is
+ *      an enum. Client APIs which use an integer or other type for
+ *      booleans cannot use this as the base type for their boolean.
+ *
+ * Tokens defined in khrplatform.h:
+ *
+ *    KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values.
+ *
+ *    KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0.
+ *    KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0.
+ *
+ * Calling convention macros defined in this file:
+ *    KHRONOS_APICALL
+ *    KHRONOS_APIENTRY
+ *    KHRONOS_APIATTRIBUTES
+ *
+ * These may be used in function prototypes as:
+ *
+ *      KHRONOS_APICALL void KHRONOS_APIENTRY funcname(
+ *                                  int arg1,
+ *                                  int arg2) KHRONOS_APIATTRIBUTES;
+ */
+
+#if defined(__SCITECH_SNAP__) && !defined(KHRONOS_STATIC)
+#   define KHRONOS_STATIC 1
+#endif
+
+/*-------------------------------------------------------------------------
+ * Definition of KHRONOS_APICALL
+ *-------------------------------------------------------------------------
+ * This precedes the return type of the function in the function prototype.
+ */
+#if defined(KHRONOS_STATIC)
+    /* If the preprocessor constant KHRONOS_STATIC is defined, make the
+     * header compatible with static linking. */
+#   define KHRONOS_APICALL
+#elif defined(_WIN32)
+#   define KHRONOS_APICALL __declspec(dllimport)
+#elif defined (__SYMBIAN32__)
+#   define KHRONOS_APICALL IMPORT_C
+#elif defined(__ANDROID__)
+#   define KHRONOS_APICALL __attribute__((visibility("default")))
+#else
+#   define KHRONOS_APICALL
+#endif
+
+/*-------------------------------------------------------------------------
+ * Definition of KHRONOS_APIENTRY
+ *-------------------------------------------------------------------------
+ * This follows the return type of the function  and precedes the function
+ * name in the function prototype.
+ */
+#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__)
+    /* Win32 but not WinCE */
+#   define KHRONOS_APIENTRY __stdcall
+#else
+#   define KHRONOS_APIENTRY
+#endif
+
+/*-------------------------------------------------------------------------
+ * Definition of KHRONOS_APIATTRIBUTES
+ *-------------------------------------------------------------------------
+ * This follows the closing parenthesis of the function prototype arguments.
+ */
+#if defined (__ARMCC_2__)
+#define KHRONOS_APIATTRIBUTES __softfp
+#else
+#define KHRONOS_APIATTRIBUTES
+#endif
+
+/*-------------------------------------------------------------------------
+ * basic type definitions
+ *-----------------------------------------------------------------------*/
+#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__)
+
+
+/*
+ * Using <stdint.h>
+ */
+#include <stdint.h>
+typedef int32_t                 khronos_int32_t;
+typedef uint32_t                khronos_uint32_t;
+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)
+
+/*
+ * Using <inttypes.h>
+ */
+#include <inttypes.h>
+typedef int32_t                 khronos_int32_t;
+typedef uint32_t                khronos_uint32_t;
+typedef int64_t                 khronos_int64_t;
+typedef uint64_t                khronos_uint64_t;
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#elif defined(_WIN32) && !defined(__SCITECH_SNAP__)
+
+/*
+ * Win32
+ */
+typedef __int32                 khronos_int32_t;
+typedef unsigned __int32        khronos_uint32_t;
+typedef __int64                 khronos_int64_t;
+typedef unsigned __int64        khronos_uint64_t;
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#elif defined(__sun__) || defined(__digital__)
+
+/*
+ * Sun or Digital
+ */
+typedef int                     khronos_int32_t;
+typedef unsigned int            khronos_uint32_t;
+#if defined(__arch64__) || defined(_LP64)
+typedef long int                khronos_int64_t;
+typedef unsigned long int       khronos_uint64_t;
+#else
+typedef long long int           khronos_int64_t;
+typedef unsigned long long int  khronos_uint64_t;
+#endif /* __arch64__ */
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#elif 0
+
+/*
+ * Hypothetical platform with no float or int64 support
+ */
+typedef int                     khronos_int32_t;
+typedef unsigned int            khronos_uint32_t;
+#define KHRONOS_SUPPORT_INT64   0
+#define KHRONOS_SUPPORT_FLOAT   0
+
+#else
+
+/*
+ * Generic fallback
+ */
+#include <stdint.h>
+typedef int32_t                 khronos_int32_t;
+typedef uint32_t                khronos_uint32_t;
+typedef int64_t                 khronos_int64_t;
+typedef uint64_t                khronos_uint64_t;
+#define KHRONOS_SUPPORT_INT64   1
+#define KHRONOS_SUPPORT_FLOAT   1
+
+#endif
+
+
+/*
+ * Types that are (so far) the same on all platforms
+ */
+typedef signed   char          khronos_int8_t;
+typedef unsigned char          khronos_uint8_t;
+typedef signed   short int     khronos_int16_t;
+typedef unsigned short int     khronos_uint16_t;
+
+/*
+ * Types that differ between LLP64 and LP64 architectures - in LLP64,
+ * pointers are 64 bits, but 'long' is still 32 bits. Win64 appears
+ * to be the only LLP64 architecture in current use.
+ */
+#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;
+#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
+
+#if KHRONOS_SUPPORT_FLOAT
+/*
+ * Float type
+ */
+typedef          float         khronos_float_t;
+#endif
+
+#if KHRONOS_SUPPORT_INT64
+/* Time types
+ *
+ * These types can be used to represent a time interval in nanoseconds or
+ * an absolute Unadjusted System Time.  Unadjusted System Time is the number
+ * of nanoseconds since some arbitrary system event (e.g. since the last
+ * time the system booted).  The Unadjusted System Time is an unsigned
+ * 64 bit value that wraps back to 0 every 584 years.  Time intervals
+ * may be either signed or unsigned.
+ */
+typedef khronos_uint64_t       khronos_utime_nanoseconds_t;
+typedef khronos_int64_t        khronos_stime_nanoseconds_t;
+#endif
+
+/*
+ * Dummy value used to pad enum types to 32 bits.
+ */
+#ifndef KHRONOS_MAX_ENUM
+#define KHRONOS_MAX_ENUM 0x7FFFFFFF
+#endif
+
+/*
+ * Enumerated boolean type
+ *
+ * Values other than zero should be considered to be true.  Therefore
+ * comparisons should not be made against KHRONOS_TRUE.
+ */
+typedef enum {
+    KHRONOS_FALSE = 0,
+    KHRONOS_TRUE  = 1,
+    KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM
+} khronos_boolean_enum_t;
+
+#endif /* __khrplatform_h_ */

lib/glad/src/gl.c

@@ -0,0 +1,951 @@
+/**
+ * SPDX-License-Identifier: (WTFPL OR CC0-1.0) AND Apache-2.0
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <glad/gl.h>
+
+#ifndef GLAD_IMPL_UTIL_C_
+#define GLAD_IMPL_UTIL_C_
+
+#ifdef _MSC_VER
+#define GLAD_IMPL_UTIL_SSCANF sscanf_s
+#else
+#define GLAD_IMPL_UTIL_SSCANF sscanf
+#endif
+
+#endif /* GLAD_IMPL_UTIL_C_ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+
+int GLAD_GL_VERSION_1_0 = 0;
+int GLAD_GL_VERSION_1_1 = 0;
+int GLAD_GL_VERSION_1_2 = 0;
+int GLAD_GL_VERSION_1_3 = 0;
+int GLAD_GL_VERSION_1_4 = 0;
+int GLAD_GL_VERSION_1_5 = 0;
+int GLAD_GL_VERSION_2_0 = 0;
+int GLAD_GL_VERSION_2_1 = 0;
+int GLAD_GL_VERSION_3_0 = 0;
+int GLAD_GL_VERSION_3_1 = 0;
+int GLAD_GL_VERSION_3_2 = 0;
+int GLAD_GL_VERSION_3_3 = 0;
+
+
+
+PFNGLACTIVETEXTUREPROC glad_glActiveTexture = NULL;
+PFNGLATTACHSHADERPROC glad_glAttachShader = NULL;
+PFNGLBEGINCONDITIONALRENDERPROC glad_glBeginConditionalRender = NULL;
+PFNGLBEGINQUERYPROC glad_glBeginQuery = NULL;
+PFNGLBEGINTRANSFORMFEEDBACKPROC glad_glBeginTransformFeedback = NULL;
+PFNGLBINDATTRIBLOCATIONPROC glad_glBindAttribLocation = NULL;
+PFNGLBINDBUFFERPROC glad_glBindBuffer = NULL;
+PFNGLBINDBUFFERBASEPROC glad_glBindBufferBase = NULL;
+PFNGLBINDBUFFERRANGEPROC glad_glBindBufferRange = NULL;
+PFNGLBINDFRAGDATALOCATIONPROC glad_glBindFragDataLocation = NULL;
+PFNGLBINDFRAGDATALOCATIONINDEXEDPROC glad_glBindFragDataLocationIndexed = NULL;
+PFNGLBINDFRAMEBUFFERPROC glad_glBindFramebuffer = NULL;
+PFNGLBINDRENDERBUFFERPROC glad_glBindRenderbuffer = NULL;
+PFNGLBINDSAMPLERPROC glad_glBindSampler = NULL;
+PFNGLBINDTEXTUREPROC glad_glBindTexture = NULL;
+PFNGLBINDVERTEXARRAYPROC glad_glBindVertexArray = NULL;
+PFNGLBLENDCOLORPROC glad_glBlendColor = NULL;
+PFNGLBLENDEQUATIONPROC glad_glBlendEquation = NULL;
+PFNGLBLENDEQUATIONSEPARATEPROC glad_glBlendEquationSeparate = NULL;
+PFNGLBLENDFUNCPROC glad_glBlendFunc = NULL;
+PFNGLBLENDFUNCSEPARATEPROC glad_glBlendFuncSeparate = NULL;
+PFNGLBLITFRAMEBUFFERPROC glad_glBlitFramebuffer = NULL;
+PFNGLBUFFERDATAPROC glad_glBufferData = NULL;
+PFNGLBUFFERSUBDATAPROC glad_glBufferSubData = NULL;
+PFNGLCHECKFRAMEBUFFERSTATUSPROC glad_glCheckFramebufferStatus = NULL;
+PFNGLCLAMPCOLORPROC glad_glClampColor = NULL;
+PFNGLCLEARPROC glad_glClear = NULL;
+PFNGLCLEARBUFFERFIPROC glad_glClearBufferfi = NULL;
+PFNGLCLEARBUFFERFVPROC glad_glClearBufferfv = NULL;
+PFNGLCLEARBUFFERIVPROC glad_glClearBufferiv = NULL;
+PFNGLCLEARBUFFERUIVPROC glad_glClearBufferuiv = NULL;
+PFNGLCLEARCOLORPROC glad_glClearColor = NULL;
+PFNGLCLEARDEPTHPROC glad_glClearDepth = NULL;
+PFNGLCLEARSTENCILPROC glad_glClearStencil = NULL;
+PFNGLCLIENTWAITSYNCPROC glad_glClientWaitSync = NULL;
+PFNGLCOLORMASKPROC glad_glColorMask = NULL;
+PFNGLCOLORMASKIPROC glad_glColorMaski = NULL;
+PFNGLCOMPILESHADERPROC glad_glCompileShader = NULL;
+PFNGLCOMPRESSEDTEXIMAGE1DPROC glad_glCompressedTexImage1D = NULL;
+PFNGLCOMPRESSEDTEXIMAGE2DPROC glad_glCompressedTexImage2D = NULL;
+PFNGLCOMPRESSEDTEXIMAGE3DPROC glad_glCompressedTexImage3D = NULL;
+PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC glad_glCompressedTexSubImage1D = NULL;
+PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC glad_glCompressedTexSubImage2D = NULL;
+PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC glad_glCompressedTexSubImage3D = NULL;
+PFNGLCOPYBUFFERSUBDATAPROC glad_glCopyBufferSubData = NULL;
+PFNGLCOPYTEXIMAGE1DPROC glad_glCopyTexImage1D = NULL;
+PFNGLCOPYTEXIMAGE2DPROC glad_glCopyTexImage2D = NULL;
+PFNGLCOPYTEXSUBIMAGE1DPROC glad_glCopyTexSubImage1D = NULL;
+PFNGLCOPYTEXSUBIMAGE2DPROC glad_glCopyTexSubImage2D = NULL;
+PFNGLCOPYTEXSUBIMAGE3DPROC glad_glCopyTexSubImage3D = NULL;
+PFNGLCREATEPROGRAMPROC glad_glCreateProgram = NULL;
+PFNGLCREATESHADERPROC glad_glCreateShader = NULL;
+PFNGLCULLFACEPROC glad_glCullFace = NULL;
+PFNGLDELETEBUFFERSPROC glad_glDeleteBuffers = NULL;
+PFNGLDELETEFRAMEBUFFERSPROC glad_glDeleteFramebuffers = NULL;
+PFNGLDELETEPROGRAMPROC glad_glDeleteProgram = NULL;
+PFNGLDELETEQUERIESPROC glad_glDeleteQueries = NULL;
+PFNGLDELETERENDERBUFFERSPROC glad_glDeleteRenderbuffers = NULL;
+PFNGLDELETESAMPLERSPROC glad_glDeleteSamplers = NULL;
+PFNGLDELETESHADERPROC glad_glDeleteShader = NULL;
+PFNGLDELETESYNCPROC glad_glDeleteSync = NULL;
+PFNGLDELETETEXTURESPROC glad_glDeleteTextures = NULL;
+PFNGLDELETEVERTEXARRAYSPROC glad_glDeleteVertexArrays = NULL;
+PFNGLDEPTHFUNCPROC glad_glDepthFunc = NULL;
+PFNGLDEPTHMASKPROC glad_glDepthMask = NULL;
+PFNGLDEPTHRANGEPROC glad_glDepthRange = NULL;
+PFNGLDETACHSHADERPROC glad_glDetachShader = NULL;
+PFNGLDISABLEPROC glad_glDisable = NULL;
+PFNGLDISABLEVERTEXATTRIBARRAYPROC glad_glDisableVertexAttribArray = NULL;
+PFNGLDISABLEIPROC glad_glDisablei = NULL;
+PFNGLDRAWARRAYSPROC glad_glDrawArrays = NULL;
+PFNGLDRAWARRAYSINSTANCEDPROC glad_glDrawArraysInstanced = NULL;
+PFNGLDRAWBUFFERPROC glad_glDrawBuffer = NULL;
+PFNGLDRAWBUFFERSPROC glad_glDrawBuffers = NULL;
+PFNGLDRAWELEMENTSPROC glad_glDrawElements = NULL;
+PFNGLDRAWELEMENTSBASEVERTEXPROC glad_glDrawElementsBaseVertex = NULL;
+PFNGLDRAWELEMENTSINSTANCEDPROC glad_glDrawElementsInstanced = NULL;
+PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC glad_glDrawElementsInstancedBaseVertex = NULL;
+PFNGLDRAWRANGEELEMENTSPROC glad_glDrawRangeElements = NULL;
+PFNGLDRAWRANGEELEMENTSBASEVERTEXPROC glad_glDrawRangeElementsBaseVertex = NULL;
+PFNGLENABLEPROC glad_glEnable = NULL;
+PFNGLENABLEVERTEXATTRIBARRAYPROC glad_glEnableVertexAttribArray = NULL;
+PFNGLENABLEIPROC glad_glEnablei = NULL;
+PFNGLENDCONDITIONALRENDERPROC glad_glEndConditionalRender = NULL;
+PFNGLENDQUERYPROC glad_glEndQuery = NULL;
+PFNGLENDTRANSFORMFEEDBACKPROC glad_glEndTransformFeedback = NULL;
+PFNGLFENCESYNCPROC glad_glFenceSync = NULL;
+PFNGLFINISHPROC glad_glFinish = NULL;
+PFNGLFLUSHPROC glad_glFlush = NULL;
+PFNGLFLUSHMAPPEDBUFFERRANGEPROC glad_glFlushMappedBufferRange = NULL;
+PFNGLFRAMEBUFFERRENDERBUFFERPROC glad_glFramebufferRenderbuffer = NULL;
+PFNGLFRAMEBUFFERTEXTUREPROC glad_glFramebufferTexture = NULL;
+PFNGLFRAMEBUFFERTEXTURE1DPROC glad_glFramebufferTexture1D = NULL;
+PFNGLFRAMEBUFFERTEXTURE2DPROC glad_glFramebufferTexture2D = NULL;
+PFNGLFRAMEBUFFERTEXTURE3DPROC glad_glFramebufferTexture3D = NULL;
+PFNGLFRAMEBUFFERTEXTURELAYERPROC glad_glFramebufferTextureLayer = NULL;
+PFNGLFRONTFACEPROC glad_glFrontFace = NULL;
+PFNGLGENBUFFERSPROC glad_glGenBuffers = NULL;
+PFNGLGENFRAMEBUFFERSPROC glad_glGenFramebuffers = NULL;
+PFNGLGENQUERIESPROC glad_glGenQueries = NULL;
+PFNGLGENRENDERBUFFERSPROC glad_glGenRenderbuffers = NULL;
+PFNGLGENSAMPLERSPROC glad_glGenSamplers = NULL;
+PFNGLGENTEXTURESPROC glad_glGenTextures = NULL;
+PFNGLGENVERTEXARRAYSPROC glad_glGenVertexArrays = NULL;
+PFNGLGENERATEMIPMAPPROC glad_glGenerateMipmap = NULL;
+PFNGLGETACTIVEATTRIBPROC glad_glGetActiveAttrib = NULL;
+PFNGLGETACTIVEUNIFORMPROC glad_glGetActiveUniform = NULL;
+PFNGLGETACTIVEUNIFORMBLOCKNAMEPROC glad_glGetActiveUniformBlockName = NULL;
+PFNGLGETACTIVEUNIFORMBLOCKIVPROC glad_glGetActiveUniformBlockiv = NULL;
+PFNGLGETACTIVEUNIFORMNAMEPROC glad_glGetActiveUniformName = NULL;
+PFNGLGETACTIVEUNIFORMSIVPROC glad_glGetActiveUniformsiv = NULL;
+PFNGLGETATTACHEDSHADERSPROC glad_glGetAttachedShaders = NULL;
+PFNGLGETATTRIBLOCATIONPROC glad_glGetAttribLocation = NULL;
+PFNGLGETBOOLEANI_VPROC glad_glGetBooleani_v = NULL;
+PFNGLGETBOOLEANVPROC glad_glGetBooleanv = NULL;
+PFNGLGETBUFFERPARAMETERI64VPROC glad_glGetBufferParameteri64v = NULL;
+PFNGLGETBUFFERPARAMETERIVPROC glad_glGetBufferParameteriv = NULL;
+PFNGLGETBUFFERPOINTERVPROC glad_glGetBufferPointerv = NULL;
+PFNGLGETBUFFERSUBDATAPROC glad_glGetBufferSubData = NULL;
+PFNGLGETCOMPRESSEDTEXIMAGEPROC glad_glGetCompressedTexImage = NULL;
+PFNGLGETDOUBLEVPROC glad_glGetDoublev = NULL;
+PFNGLGETERRORPROC glad_glGetError = NULL;
+PFNGLGETFLOATVPROC glad_glGetFloatv = NULL;
+PFNGLGETFRAGDATAINDEXPROC glad_glGetFragDataIndex = NULL;
+PFNGLGETFRAGDATALOCATIONPROC glad_glGetFragDataLocation = NULL;
+PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC glad_glGetFramebufferAttachmentParameteriv = NULL;
+PFNGLGETINTEGER64I_VPROC glad_glGetInteger64i_v = NULL;
+PFNGLGETINTEGER64VPROC glad_glGetInteger64v = NULL;
+PFNGLGETINTEGERI_VPROC glad_glGetIntegeri_v = NULL;
+PFNGLGETINTEGERVPROC glad_glGetIntegerv = NULL;
+PFNGLGETMULTISAMPLEFVPROC glad_glGetMultisamplefv = NULL;
+PFNGLGETPROGRAMINFOLOGPROC glad_glGetProgramInfoLog = NULL;
+PFNGLGETPROGRAMIVPROC glad_glGetProgramiv = NULL;
+PFNGLGETQUERYOBJECTI64VPROC glad_glGetQueryObjecti64v = NULL;
+PFNGLGETQUERYOBJECTIVPROC glad_glGetQueryObjectiv = NULL;
+PFNGLGETQUERYOBJECTUI64VPROC glad_glGetQueryObjectui64v = NULL;
+PFNGLGETQUERYOBJECTUIVPROC glad_glGetQueryObjectuiv = NULL;
+PFNGLGETQUERYIVPROC glad_glGetQueryiv = NULL;
+PFNGLGETRENDERBUFFERPARAMETERIVPROC glad_glGetRenderbufferParameteriv = NULL;
+PFNGLGETSAMPLERPARAMETERIIVPROC glad_glGetSamplerParameterIiv = NULL;
+PFNGLGETSAMPLERPARAMETERIUIVPROC glad_glGetSamplerParameterIuiv = NULL;
+PFNGLGETSAMPLERPARAMETERFVPROC glad_glGetSamplerParameterfv = NULL;
+PFNGLGETSAMPLERPARAMETERIVPROC glad_glGetSamplerParameteriv = NULL;
+PFNGLGETSHADERINFOLOGPROC glad_glGetShaderInfoLog = NULL;
+PFNGLGETSHADERSOURCEPROC glad_glGetShaderSource = NULL;
+PFNGLGETSHADERIVPROC glad_glGetShaderiv = NULL;
+PFNGLGETSTRINGPROC glad_glGetString = NULL;
+PFNGLGETSTRINGIPROC glad_glGetStringi = NULL;
+PFNGLGETSYNCIVPROC glad_glGetSynciv = NULL;
+PFNGLGETTEXIMAGEPROC glad_glGetTexImage = NULL;
+PFNGLGETTEXLEVELPARAMETERFVPROC glad_glGetTexLevelParameterfv = NULL;
+PFNGLGETTEXLEVELPARAMETERIVPROC glad_glGetTexLevelParameteriv = NULL;
+PFNGLGETTEXPARAMETERIIVPROC glad_glGetTexParameterIiv = NULL;
+PFNGLGETTEXPARAMETERIUIVPROC glad_glGetTexParameterIuiv = NULL;
+PFNGLGETTEXPARAMETERFVPROC glad_glGetTexParameterfv = NULL;
+PFNGLGETTEXPARAMETERIVPROC glad_glGetTexParameteriv = NULL;
+PFNGLGETTRANSFORMFEEDBACKVARYINGPROC glad_glGetTransformFeedbackVarying = NULL;
+PFNGLGETUNIFORMBLOCKINDEXPROC glad_glGetUniformBlockIndex = NULL;
+PFNGLGETUNIFORMINDICESPROC glad_glGetUniformIndices = NULL;
+PFNGLGETUNIFORMLOCATIONPROC glad_glGetUniformLocation = NULL;
+PFNGLGETUNIFORMFVPROC glad_glGetUniformfv = NULL;
+PFNGLGETUNIFORMIVPROC glad_glGetUniformiv = NULL;
+PFNGLGETUNIFORMUIVPROC glad_glGetUniformuiv = NULL;
+PFNGLGETVERTEXATTRIBIIVPROC glad_glGetVertexAttribIiv = NULL;
+PFNGLGETVERTEXATTRIBIUIVPROC glad_glGetVertexAttribIuiv = NULL;
+PFNGLGETVERTEXATTRIBPOINTERVPROC glad_glGetVertexAttribPointerv = NULL;
+PFNGLGETVERTEXATTRIBDVPROC glad_glGetVertexAttribdv = NULL;
+PFNGLGETVERTEXATTRIBFVPROC glad_glGetVertexAttribfv = NULL;
+PFNGLGETVERTEXATTRIBIVPROC glad_glGetVertexAttribiv = NULL;
+PFNGLHINTPROC glad_glHint = NULL;
+PFNGLISBUFFERPROC glad_glIsBuffer = NULL;
+PFNGLISENABLEDPROC glad_glIsEnabled = NULL;
+PFNGLISENABLEDIPROC glad_glIsEnabledi = NULL;
+PFNGLISFRAMEBUFFERPROC glad_glIsFramebuffer = NULL;
+PFNGLISPROGRAMPROC glad_glIsProgram = NULL;
+PFNGLISQUERYPROC glad_glIsQuery = NULL;
+PFNGLISRENDERBUFFERPROC glad_glIsRenderbuffer = NULL;
+PFNGLISSAMPLERPROC glad_glIsSampler = NULL;
+PFNGLISSHADERPROC glad_glIsShader = NULL;
+PFNGLISSYNCPROC glad_glIsSync = NULL;
+PFNGLISTEXTUREPROC glad_glIsTexture = NULL;
+PFNGLISVERTEXARRAYPROC glad_glIsVertexArray = NULL;
+PFNGLLINEWIDTHPROC glad_glLineWidth = NULL;
+PFNGLLINKPROGRAMPROC glad_glLinkProgram = NULL;
+PFNGLLOGICOPPROC glad_glLogicOp = NULL;
+PFNGLMAPBUFFERPROC glad_glMapBuffer = NULL;
+PFNGLMAPBUFFERRANGEPROC glad_glMapBufferRange = NULL;
+PFNGLMULTIDRAWARRAYSPROC glad_glMultiDrawArrays = NULL;
+PFNGLMULTIDRAWELEMENTSPROC glad_glMultiDrawElements = NULL;
+PFNGLMULTIDRAWELEMENTSBASEVERTEXPROC glad_glMultiDrawElementsBaseVertex = NULL;
+PFNGLPIXELSTOREFPROC glad_glPixelStoref = NULL;
+PFNGLPIXELSTOREIPROC glad_glPixelStorei = NULL;
+PFNGLPOINTPARAMETERFPROC glad_glPointParameterf = NULL;
+PFNGLPOINTPARAMETERFVPROC glad_glPointParameterfv = NULL;
+PFNGLPOINTPARAMETERIPROC glad_glPointParameteri = NULL;
+PFNGLPOINTPARAMETERIVPROC glad_glPointParameteriv = NULL;
+PFNGLPOINTSIZEPROC glad_glPointSize = NULL;
+PFNGLPOLYGONMODEPROC glad_glPolygonMode = NULL;
+PFNGLPOLYGONOFFSETPROC glad_glPolygonOffset = NULL;
+PFNGLPRIMITIVERESTARTINDEXPROC glad_glPrimitiveRestartIndex = NULL;
+PFNGLPROVOKINGVERTEXPROC glad_glProvokingVertex = NULL;
+PFNGLQUERYCOUNTERPROC glad_glQueryCounter = NULL;
+PFNGLREADBUFFERPROC glad_glReadBuffer = NULL;
+PFNGLREADPIXELSPROC glad_glReadPixels = NULL;
+PFNGLRENDERBUFFERSTORAGEPROC glad_glRenderbufferStorage = NULL;
+PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC glad_glRenderbufferStorageMultisample = NULL;
+PFNGLSAMPLECOVERAGEPROC glad_glSampleCoverage = NULL;
+PFNGLSAMPLEMASKIPROC glad_glSampleMaski = NULL;
+PFNGLSAMPLERPARAMETERIIVPROC glad_glSamplerParameterIiv = NULL;
+PFNGLSAMPLERPARAMETERIUIVPROC glad_glSamplerParameterIuiv = NULL;
+PFNGLSAMPLERPARAMETERFPROC glad_glSamplerParameterf = NULL;
+PFNGLSAMPLERPARAMETERFVPROC glad_glSamplerParameterfv = NULL;
+PFNGLSAMPLERPARAMETERIPROC glad_glSamplerParameteri = NULL;
+PFNGLSAMPLERPARAMETERIVPROC glad_glSamplerParameteriv = NULL;
+PFNGLSCISSORPROC glad_glScissor = NULL;
+PFNGLSHADERSOURCEPROC glad_glShaderSource = NULL;
+PFNGLSTENCILFUNCPROC glad_glStencilFunc = NULL;
+PFNGLSTENCILFUNCSEPARATEPROC glad_glStencilFuncSeparate = NULL;
+PFNGLSTENCILMASKPROC glad_glStencilMask = NULL;
+PFNGLSTENCILMASKSEPARATEPROC glad_glStencilMaskSeparate = NULL;
+PFNGLSTENCILOPPROC glad_glStencilOp = NULL;
+PFNGLSTENCILOPSEPARATEPROC glad_glStencilOpSeparate = NULL;
+PFNGLTEXBUFFERPROC glad_glTexBuffer = NULL;
+PFNGLTEXIMAGE1DPROC glad_glTexImage1D = NULL;
+PFNGLTEXIMAGE2DPROC glad_glTexImage2D = NULL;
+PFNGLTEXIMAGE2DMULTISAMPLEPROC glad_glTexImage2DMultisample = NULL;
+PFNGLTEXIMAGE3DPROC glad_glTexImage3D = NULL;
+PFNGLTEXIMAGE3DMULTISAMPLEPROC glad_glTexImage3DMultisample = NULL;
+PFNGLTEXPARAMETERIIVPROC glad_glTexParameterIiv = NULL;
+PFNGLTEXPARAMETERIUIVPROC glad_glTexParameterIuiv = NULL;
+PFNGLTEXPARAMETERFPROC glad_glTexParameterf = NULL;
+PFNGLTEXPARAMETERFVPROC glad_glTexParameterfv = NULL;
+PFNGLTEXPARAMETERIPROC glad_glTexParameteri = NULL;
+PFNGLTEXPARAMETERIVPROC glad_glTexParameteriv = NULL;
+PFNGLTEXSUBIMAGE1DPROC glad_glTexSubImage1D = NULL;
+PFNGLTEXSUBIMAGE2DPROC glad_glTexSubImage2D = NULL;
+PFNGLTEXSUBIMAGE3DPROC glad_glTexSubImage3D = NULL;
+PFNGLTRANSFORMFEEDBACKVARYINGSPROC glad_glTransformFeedbackVaryings = NULL;
+PFNGLUNIFORM1FPROC glad_glUniform1f = NULL;
+PFNGLUNIFORM1FVPROC glad_glUniform1fv = NULL;
+PFNGLUNIFORM1IPROC glad_glUniform1i = NULL;
+PFNGLUNIFORM1IVPROC glad_glUniform1iv = NULL;
+PFNGLUNIFORM1UIPROC glad_glUniform1ui = NULL;
+PFNGLUNIFORM1UIVPROC glad_glUniform1uiv = NULL;
+PFNGLUNIFORM2FPROC glad_glUniform2f = NULL;
+PFNGLUNIFORM2FVPROC glad_glUniform2fv = NULL;
+PFNGLUNIFORM2IPROC glad_glUniform2i = NULL;
+PFNGLUNIFORM2IVPROC glad_glUniform2iv = NULL;
+PFNGLUNIFORM2UIPROC glad_glUniform2ui = NULL;
+PFNGLUNIFORM2UIVPROC glad_glUniform2uiv = NULL;
+PFNGLUNIFORM3FPROC glad_glUniform3f = NULL;
+PFNGLUNIFORM3FVPROC glad_glUniform3fv = NULL;
+PFNGLUNIFORM3IPROC glad_glUniform3i = NULL;
+PFNGLUNIFORM3IVPROC glad_glUniform3iv = NULL;
+PFNGLUNIFORM3UIPROC glad_glUniform3ui = NULL;
+PFNGLUNIFORM3UIVPROC glad_glUniform3uiv = NULL;
+PFNGLUNIFORM4FPROC glad_glUniform4f = NULL;
+PFNGLUNIFORM4FVPROC glad_glUniform4fv = NULL;
+PFNGLUNIFORM4IPROC glad_glUniform4i = NULL;
+PFNGLUNIFORM4IVPROC glad_glUniform4iv = NULL;
+PFNGLUNIFORM4UIPROC glad_glUniform4ui = NULL;
+PFNGLUNIFORM4UIVPROC glad_glUniform4uiv = NULL;
+PFNGLUNIFORMBLOCKBINDINGPROC glad_glUniformBlockBinding = NULL;
+PFNGLUNIFORMMATRIX2FVPROC glad_glUniformMatrix2fv = NULL;
+PFNGLUNIFORMMATRIX2X3FVPROC glad_glUniformMatrix2x3fv = NULL;
+PFNGLUNIFORMMATRIX2X4FVPROC glad_glUniformMatrix2x4fv = NULL;
+PFNGLUNIFORMMATRIX3FVPROC glad_glUniformMatrix3fv = NULL;
+PFNGLUNIFORMMATRIX3X2FVPROC glad_glUniformMatrix3x2fv = NULL;
+PFNGLUNIFORMMATRIX3X4FVPROC glad_glUniformMatrix3x4fv = NULL;
+PFNGLUNIFORMMATRIX4FVPROC glad_glUniformMatrix4fv = NULL;
+PFNGLUNIFORMMATRIX4X2FVPROC glad_glUniformMatrix4x2fv = NULL;
+PFNGLUNIFORMMATRIX4X3FVPROC glad_glUniformMatrix4x3fv = NULL;
+PFNGLUNMAPBUFFERPROC glad_glUnmapBuffer = NULL;
+PFNGLUSEPROGRAMPROC glad_glUseProgram = NULL;
+PFNGLVALIDATEPROGRAMPROC glad_glValidateProgram = NULL;
+PFNGLVERTEXATTRIB1DPROC glad_glVertexAttrib1d = NULL;
+PFNGLVERTEXATTRIB1DVPROC glad_glVertexAttrib1dv = NULL;
+PFNGLVERTEXATTRIB1FPROC glad_glVertexAttrib1f = NULL;
+PFNGLVERTEXATTRIB1FVPROC glad_glVertexAttrib1fv = NULL;
+PFNGLVERTEXATTRIB1SPROC glad_glVertexAttrib1s = NULL;
+PFNGLVERTEXATTRIB1SVPROC glad_glVertexAttrib1sv = NULL;
+PFNGLVERTEXATTRIB2DPROC glad_glVertexAttrib2d = NULL;
+PFNGLVERTEXATTRIB2DVPROC glad_glVertexAttrib2dv = NULL;
+PFNGLVERTEXATTRIB2FPROC glad_glVertexAttrib2f = NULL;
+PFNGLVERTEXATTRIB2FVPROC glad_glVertexAttrib2fv = NULL;
+PFNGLVERTEXATTRIB2SPROC glad_glVertexAttrib2s = NULL;
+PFNGLVERTEXATTRIB2SVPROC glad_glVertexAttrib2sv = NULL;
+PFNGLVERTEXATTRIB3DPROC glad_glVertexAttrib3d = NULL;
+PFNGLVERTEXATTRIB3DVPROC glad_glVertexAttrib3dv = NULL;
+PFNGLVERTEXATTRIB3FPROC glad_glVertexAttrib3f = NULL;
+PFNGLVERTEXATTRIB3FVPROC glad_glVertexAttrib3fv = NULL;
+PFNGLVERTEXATTRIB3SPROC glad_glVertexAttrib3s = NULL;
+PFNGLVERTEXATTRIB3SVPROC glad_glVertexAttrib3sv = NULL;
+PFNGLVERTEXATTRIB4NBVPROC glad_glVertexAttrib4Nbv = NULL;
+PFNGLVERTEXATTRIB4NIVPROC glad_glVertexAttrib4Niv = NULL;
+PFNGLVERTEXATTRIB4NSVPROC glad_glVertexAttrib4Nsv = NULL;
+PFNGLVERTEXATTRIB4NUBPROC glad_glVertexAttrib4Nub = NULL;
+PFNGLVERTEXATTRIB4NUBVPROC glad_glVertexAttrib4Nubv = NULL;
+PFNGLVERTEXATTRIB4NUIVPROC glad_glVertexAttrib4Nuiv = NULL;
+PFNGLVERTEXATTRIB4NUSVPROC glad_glVertexAttrib4Nusv = NULL;
+PFNGLVERTEXATTRIB4BVPROC glad_glVertexAttrib4bv = NULL;
+PFNGLVERTEXATTRIB4DPROC glad_glVertexAttrib4d = NULL;
+PFNGLVERTEXATTRIB4DVPROC glad_glVertexAttrib4dv = NULL;
+PFNGLVERTEXATTRIB4FPROC glad_glVertexAttrib4f = NULL;
+PFNGLVERTEXATTRIB4FVPROC glad_glVertexAttrib4fv = NULL;
+PFNGLVERTEXATTRIB4IVPROC glad_glVertexAttrib4iv = NULL;
+PFNGLVERTEXATTRIB4SPROC glad_glVertexAttrib4s = NULL;
+PFNGLVERTEXATTRIB4SVPROC glad_glVertexAttrib4sv = NULL;
+PFNGLVERTEXATTRIB4UBVPROC glad_glVertexAttrib4ubv = NULL;
+PFNGLVERTEXATTRIB4UIVPROC glad_glVertexAttrib4uiv = NULL;
+PFNGLVERTEXATTRIB4USVPROC glad_glVertexAttrib4usv = NULL;
+PFNGLVERTEXATTRIBDIVISORPROC glad_glVertexAttribDivisor = NULL;
+PFNGLVERTEXATTRIBI1IPROC glad_glVertexAttribI1i = NULL;
+PFNGLVERTEXATTRIBI1IVPROC glad_glVertexAttribI1iv = NULL;
+PFNGLVERTEXATTRIBI1UIPROC glad_glVertexAttribI1ui = NULL;
+PFNGLVERTEXATTRIBI1UIVPROC glad_glVertexAttribI1uiv = NULL;
+PFNGLVERTEXATTRIBI2IPROC glad_glVertexAttribI2i = NULL;
+PFNGLVERTEXATTRIBI2IVPROC glad_glVertexAttribI2iv = NULL;
+PFNGLVERTEXATTRIBI2UIPROC glad_glVertexAttribI2ui = NULL;
+PFNGLVERTEXATTRIBI2UIVPROC glad_glVertexAttribI2uiv = NULL;
+PFNGLVERTEXATTRIBI3IPROC glad_glVertexAttribI3i = NULL;
+PFNGLVERTEXATTRIBI3IVPROC glad_glVertexAttribI3iv = NULL;
+PFNGLVERTEXATTRIBI3UIPROC glad_glVertexAttribI3ui = NULL;
+PFNGLVERTEXATTRIBI3UIVPROC glad_glVertexAttribI3uiv = NULL;
+PFNGLVERTEXATTRIBI4BVPROC glad_glVertexAttribI4bv = NULL;
+PFNGLVERTEXATTRIBI4IPROC glad_glVertexAttribI4i = NULL;
+PFNGLVERTEXATTRIBI4IVPROC glad_glVertexAttribI4iv = NULL;
+PFNGLVERTEXATTRIBI4SVPROC glad_glVertexAttribI4sv = NULL;
+PFNGLVERTEXATTRIBI4UBVPROC glad_glVertexAttribI4ubv = NULL;
+PFNGLVERTEXATTRIBI4UIPROC glad_glVertexAttribI4ui = NULL;
+PFNGLVERTEXATTRIBI4UIVPROC glad_glVertexAttribI4uiv = NULL;
+PFNGLVERTEXATTRIBI4USVPROC glad_glVertexAttribI4usv = NULL;
+PFNGLVERTEXATTRIBIPOINTERPROC glad_glVertexAttribIPointer = NULL;
+PFNGLVERTEXATTRIBP1UIPROC glad_glVertexAttribP1ui = NULL;
+PFNGLVERTEXATTRIBP1UIVPROC glad_glVertexAttribP1uiv = NULL;
+PFNGLVERTEXATTRIBP2UIPROC glad_glVertexAttribP2ui = NULL;
+PFNGLVERTEXATTRIBP2UIVPROC glad_glVertexAttribP2uiv = NULL;
+PFNGLVERTEXATTRIBP3UIPROC glad_glVertexAttribP3ui = NULL;
+PFNGLVERTEXATTRIBP3UIVPROC glad_glVertexAttribP3uiv = NULL;
+PFNGLVERTEXATTRIBP4UIPROC glad_glVertexAttribP4ui = NULL;
+PFNGLVERTEXATTRIBP4UIVPROC glad_glVertexAttribP4uiv = NULL;
+PFNGLVERTEXATTRIBPOINTERPROC glad_glVertexAttribPointer = NULL;
+PFNGLVIEWPORTPROC glad_glViewport = NULL;
+PFNGLWAITSYNCPROC glad_glWaitSync = NULL;
+
+
+static void glad_gl_load_GL_VERSION_1_0( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_GL_VERSION_1_0) return;
+    glad_glBlendFunc = (PFNGLBLENDFUNCPROC) load(userptr, "glBlendFunc");
+    glad_glClear = (PFNGLCLEARPROC) load(userptr, "glClear");
+    glad_glClearColor = (PFNGLCLEARCOLORPROC) load(userptr, "glClearColor");
+    glad_glClearDepth = (PFNGLCLEARDEPTHPROC) load(userptr, "glClearDepth");
+    glad_glClearStencil = (PFNGLCLEARSTENCILPROC) load(userptr, "glClearStencil");
+    glad_glColorMask = (PFNGLCOLORMASKPROC) load(userptr, "glColorMask");
+    glad_glCullFace = (PFNGLCULLFACEPROC) load(userptr, "glCullFace");
+    glad_glDepthFunc = (PFNGLDEPTHFUNCPROC) load(userptr, "glDepthFunc");
+    glad_glDepthMask = (PFNGLDEPTHMASKPROC) load(userptr, "glDepthMask");
+    glad_glDepthRange = (PFNGLDEPTHRANGEPROC) load(userptr, "glDepthRange");
+    glad_glDisable = (PFNGLDISABLEPROC) load(userptr, "glDisable");
+    glad_glDrawBuffer = (PFNGLDRAWBUFFERPROC) load(userptr, "glDrawBuffer");
+    glad_glEnable = (PFNGLENABLEPROC) load(userptr, "glEnable");
+    glad_glFinish = (PFNGLFINISHPROC) load(userptr, "glFinish");
+    glad_glFlush = (PFNGLFLUSHPROC) load(userptr, "glFlush");
+    glad_glFrontFace = (PFNGLFRONTFACEPROC) load(userptr, "glFrontFace");
+    glad_glGetBooleanv = (PFNGLGETBOOLEANVPROC) load(userptr, "glGetBooleanv");
+    glad_glGetDoublev = (PFNGLGETDOUBLEVPROC) load(userptr, "glGetDoublev");
+    glad_glGetError = (PFNGLGETERRORPROC) load(userptr, "glGetError");
+    glad_glGetFloatv = (PFNGLGETFLOATVPROC) load(userptr, "glGetFloatv");
+    glad_glGetIntegerv = (PFNGLGETINTEGERVPROC) load(userptr, "glGetIntegerv");
+    glad_glGetString = (PFNGLGETSTRINGPROC) load(userptr, "glGetString");
+    glad_glGetTexImage = (PFNGLGETTEXIMAGEPROC) load(userptr, "glGetTexImage");
+    glad_glGetTexLevelParameterfv = (PFNGLGETTEXLEVELPARAMETERFVPROC) load(userptr, "glGetTexLevelParameterfv");
+    glad_glGetTexLevelParameteriv = (PFNGLGETTEXLEVELPARAMETERIVPROC) load(userptr, "glGetTexLevelParameteriv");
+    glad_glGetTexParameterfv = (PFNGLGETTEXPARAMETERFVPROC) load(userptr, "glGetTexParameterfv");
+    glad_glGetTexParameteriv = (PFNGLGETTEXPARAMETERIVPROC) load(userptr, "glGetTexParameteriv");
+    glad_glHint = (PFNGLHINTPROC) load(userptr, "glHint");
+    glad_glIsEnabled = (PFNGLISENABLEDPROC) load(userptr, "glIsEnabled");
+    glad_glLineWidth = (PFNGLLINEWIDTHPROC) load(userptr, "glLineWidth");
+    glad_glLogicOp = (PFNGLLOGICOPPROC) load(userptr, "glLogicOp");
+    glad_glPixelStoref = (PFNGLPIXELSTOREFPROC) load(userptr, "glPixelStoref");
+    glad_glPixelStorei = (PFNGLPIXELSTOREIPROC) load(userptr, "glPixelStorei");
+    glad_glPointSize = (PFNGLPOINTSIZEPROC) load(userptr, "glPointSize");
+    glad_glPolygonMode = (PFNGLPOLYGONMODEPROC) load(userptr, "glPolygonMode");
+    glad_glReadBuffer = (PFNGLREADBUFFERPROC) load(userptr, "glReadBuffer");
+    glad_glReadPixels = (PFNGLREADPIXELSPROC) load(userptr, "glReadPixels");
+    glad_glScissor = (PFNGLSCISSORPROC) load(userptr, "glScissor");
+    glad_glStencilFunc = (PFNGLSTENCILFUNCPROC) load(userptr, "glStencilFunc");
+    glad_glStencilMask = (PFNGLSTENCILMASKPROC) load(userptr, "glStencilMask");
+    glad_glStencilOp = (PFNGLSTENCILOPPROC) load(userptr, "glStencilOp");
+    glad_glTexImage1D = (PFNGLTEXIMAGE1DPROC) load(userptr, "glTexImage1D");
+    glad_glTexImage2D = (PFNGLTEXIMAGE2DPROC) load(userptr, "glTexImage2D");
+    glad_glTexParameterf = (PFNGLTEXPARAMETERFPROC) load(userptr, "glTexParameterf");
+    glad_glTexParameterfv = (PFNGLTEXPARAMETERFVPROC) load(userptr, "glTexParameterfv");
+    glad_glTexParameteri = (PFNGLTEXPARAMETERIPROC) load(userptr, "glTexParameteri");
+    glad_glTexParameteriv = (PFNGLTEXPARAMETERIVPROC) load(userptr, "glTexParameteriv");
+    glad_glViewport = (PFNGLVIEWPORTPROC) load(userptr, "glViewport");
+}
+static void glad_gl_load_GL_VERSION_1_1( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_GL_VERSION_1_1) return;
+    glad_glBindTexture = (PFNGLBINDTEXTUREPROC) load(userptr, "glBindTexture");
+    glad_glCopyTexImage1D = (PFNGLCOPYTEXIMAGE1DPROC) load(userptr, "glCopyTexImage1D");
+    glad_glCopyTexImage2D = (PFNGLCOPYTEXIMAGE2DPROC) load(userptr, "glCopyTexImage2D");
+    glad_glCopyTexSubImage1D = (PFNGLCOPYTEXSUBIMAGE1DPROC) load(userptr, "glCopyTexSubImage1D");
+    glad_glCopyTexSubImage2D = (PFNGLCOPYTEXSUBIMAGE2DPROC) load(userptr, "glCopyTexSubImage2D");
+    glad_glDeleteTextures = (PFNGLDELETETEXTURESPROC) load(userptr, "glDeleteTextures");
+    glad_glDrawArrays = (PFNGLDRAWARRAYSPROC) load(userptr, "glDrawArrays");
+    glad_glDrawElements = (PFNGLDRAWELEMENTSPROC) load(userptr, "glDrawElements");
+    glad_glGenTextures = (PFNGLGENTEXTURESPROC) load(userptr, "glGenTextures");
+    glad_glIsTexture = (PFNGLISTEXTUREPROC) load(userptr, "glIsTexture");
+    glad_glPolygonOffset = (PFNGLPOLYGONOFFSETPROC) load(userptr, "glPolygonOffset");
+    glad_glTexSubImage1D = (PFNGLTEXSUBIMAGE1DPROC) load(userptr, "glTexSubImage1D");
+    glad_glTexSubImage2D = (PFNGLTEXSUBIMAGE2DPROC) load(userptr, "glTexSubImage2D");
+}
+static void glad_gl_load_GL_VERSION_1_2( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_GL_VERSION_1_2) return;
+    glad_glCopyTexSubImage3D = (PFNGLCOPYTEXSUBIMAGE3DPROC) load(userptr, "glCopyTexSubImage3D");
+    glad_glDrawRangeElements = (PFNGLDRAWRANGEELEMENTSPROC) load(userptr, "glDrawRangeElements");
+    glad_glTexImage3D = (PFNGLTEXIMAGE3DPROC) load(userptr, "glTexImage3D");
+    glad_glTexSubImage3D = (PFNGLTEXSUBIMAGE3DPROC) load(userptr, "glTexSubImage3D");
+}
+static void glad_gl_load_GL_VERSION_1_3( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_GL_VERSION_1_3) return;
+    glad_glActiveTexture = (PFNGLACTIVETEXTUREPROC) load(userptr, "glActiveTexture");
+    glad_glCompressedTexImage1D = (PFNGLCOMPRESSEDTEXIMAGE1DPROC) load(userptr, "glCompressedTexImage1D");
+    glad_glCompressedTexImage2D = (PFNGLCOMPRESSEDTEXIMAGE2DPROC) load(userptr, "glCompressedTexImage2D");
+    glad_glCompressedTexImage3D = (PFNGLCOMPRESSEDTEXIMAGE3DPROC) load(userptr, "glCompressedTexImage3D");
+    glad_glCompressedTexSubImage1D = (PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC) load(userptr, "glCompressedTexSubImage1D");
+    glad_glCompressedTexSubImage2D = (PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC) load(userptr, "glCompressedTexSubImage2D");
+    glad_glCompressedTexSubImage3D = (PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC) load(userptr, "glCompressedTexSubImage3D");
+    glad_glGetCompressedTexImage = (PFNGLGETCOMPRESSEDTEXIMAGEPROC) load(userptr, "glGetCompressedTexImage");
+    glad_glSampleCoverage = (PFNGLSAMPLECOVERAGEPROC) load(userptr, "glSampleCoverage");
+}
+static void glad_gl_load_GL_VERSION_1_4( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_GL_VERSION_1_4) return;
+    glad_glBlendColor = (PFNGLBLENDCOLORPROC) load(userptr, "glBlendColor");
+    glad_glBlendEquation = (PFNGLBLENDEQUATIONPROC) load(userptr, "glBlendEquation");
+    glad_glBlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC) load(userptr, "glBlendFuncSeparate");
+    glad_glMultiDrawArrays = (PFNGLMULTIDRAWARRAYSPROC) load(userptr, "glMultiDrawArrays");
+    glad_glMultiDrawElements = (PFNGLMULTIDRAWELEMENTSPROC) load(userptr, "glMultiDrawElements");
+    glad_glPointParameterf = (PFNGLPOINTPARAMETERFPROC) load(userptr, "glPointParameterf");
+    glad_glPointParameterfv = (PFNGLPOINTPARAMETERFVPROC) load(userptr, "glPointParameterfv");
+    glad_glPointParameteri = (PFNGLPOINTPARAMETERIPROC) load(userptr, "glPointParameteri");
+    glad_glPointParameteriv = (PFNGLPOINTPARAMETERIVPROC) load(userptr, "glPointParameteriv");
+}
+static void glad_gl_load_GL_VERSION_1_5( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_GL_VERSION_1_5) return;
+    glad_glBeginQuery = (PFNGLBEGINQUERYPROC) load(userptr, "glBeginQuery");
+    glad_glBindBuffer = (PFNGLBINDBUFFERPROC) load(userptr, "glBindBuffer");
+    glad_glBufferData = (PFNGLBUFFERDATAPROC) load(userptr, "glBufferData");
+    glad_glBufferSubData = (PFNGLBUFFERSUBDATAPROC) load(userptr, "glBufferSubData");
+    glad_glDeleteBuffers = (PFNGLDELETEBUFFERSPROC) load(userptr, "glDeleteBuffers");
+    glad_glDeleteQueries = (PFNGLDELETEQUERIESPROC) load(userptr, "glDeleteQueries");
+    glad_glEndQuery = (PFNGLENDQUERYPROC) load(userptr, "glEndQuery");
+    glad_glGenBuffers = (PFNGLGENBUFFERSPROC) load(userptr, "glGenBuffers");
+    glad_glGenQueries = (PFNGLGENQUERIESPROC) load(userptr, "glGenQueries");
+    glad_glGetBufferParameteriv = (PFNGLGETBUFFERPARAMETERIVPROC) load(userptr, "glGetBufferParameteriv");
+    glad_glGetBufferPointerv = (PFNGLGETBUFFERPOINTERVPROC) load(userptr, "glGetBufferPointerv");
+    glad_glGetBufferSubData = (PFNGLGETBUFFERSUBDATAPROC) load(userptr, "glGetBufferSubData");
+    glad_glGetQueryObjectiv = (PFNGLGETQUERYOBJECTIVPROC) load(userptr, "glGetQueryObjectiv");
+    glad_glGetQueryObjectuiv = (PFNGLGETQUERYOBJECTUIVPROC) load(userptr, "glGetQueryObjectuiv");
+    glad_glGetQueryiv = (PFNGLGETQUERYIVPROC) load(userptr, "glGetQueryiv");
+    glad_glIsBuffer = (PFNGLISBUFFERPROC) load(userptr, "glIsBuffer");
+    glad_glIsQuery = (PFNGLISQUERYPROC) load(userptr, "glIsQuery");
+    glad_glMapBuffer = (PFNGLMAPBUFFERPROC) load(userptr, "glMapBuffer");
+    glad_glUnmapBuffer = (PFNGLUNMAPBUFFERPROC) load(userptr, "glUnmapBuffer");
+}
+static void glad_gl_load_GL_VERSION_2_0( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_GL_VERSION_2_0) return;
+    glad_glAttachShader = (PFNGLATTACHSHADERPROC) load(userptr, "glAttachShader");
+    glad_glBindAttribLocation = (PFNGLBINDATTRIBLOCATIONPROC) load(userptr, "glBindAttribLocation");
+    glad_glBlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC) load(userptr, "glBlendEquationSeparate");
+    glad_glCompileShader = (PFNGLCOMPILESHADERPROC) load(userptr, "glCompileShader");
+    glad_glCreateProgram = (PFNGLCREATEPROGRAMPROC) load(userptr, "glCreateProgram");
+    glad_glCreateShader = (PFNGLCREATESHADERPROC) load(userptr, "glCreateShader");
+    glad_glDeleteProgram = (PFNGLDELETEPROGRAMPROC) load(userptr, "glDeleteProgram");
+    glad_glDeleteShader = (PFNGLDELETESHADERPROC) load(userptr, "glDeleteShader");
+    glad_glDetachShader = (PFNGLDETACHSHADERPROC) load(userptr, "glDetachShader");
+    glad_glDisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC) load(userptr, "glDisableVertexAttribArray");
+    glad_glDrawBuffers = (PFNGLDRAWBUFFERSPROC) load(userptr, "glDrawBuffers");
+    glad_glEnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC) load(userptr, "glEnableVertexAttribArray");
+    glad_glGetActiveAttrib = (PFNGLGETACTIVEATTRIBPROC) load(userptr, "glGetActiveAttrib");
+    glad_glGetActiveUniform = (PFNGLGETACTIVEUNIFORMPROC) load(userptr, "glGetActiveUniform");
+    glad_glGetAttachedShaders = (PFNGLGETATTACHEDSHADERSPROC) load(userptr, "glGetAttachedShaders");
+    glad_glGetAttribLocation = (PFNGLGETATTRIBLOCATIONPROC) load(userptr, "glGetAttribLocation");
+    glad_glGetProgramInfoLog = (PFNGLGETPROGRAMINFOLOGPROC) load(userptr, "glGetProgramInfoLog");
+    glad_glGetProgramiv = (PFNGLGETPROGRAMIVPROC) load(userptr, "glGetProgramiv");
+    glad_glGetShaderInfoLog = (PFNGLGETSHADERINFOLOGPROC) load(userptr, "glGetShaderInfoLog");
+    glad_glGetShaderSource = (PFNGLGETSHADERSOURCEPROC) load(userptr, "glGetShaderSource");
+    glad_glGetShaderiv = (PFNGLGETSHADERIVPROC) load(userptr, "glGetShaderiv");
+    glad_glGetUniformLocation = (PFNGLGETUNIFORMLOCATIONPROC) load(userptr, "glGetUniformLocation");
+    glad_glGetUniformfv = (PFNGLGETUNIFORMFVPROC) load(userptr, "glGetUniformfv");
+    glad_glGetUniformiv = (PFNGLGETUNIFORMIVPROC) load(userptr, "glGetUniformiv");
+    glad_glGetVertexAttribPointerv = (PFNGLGETVERTEXATTRIBPOINTERVPROC) load(userptr, "glGetVertexAttribPointerv");
+    glad_glGetVertexAttribdv = (PFNGLGETVERTEXATTRIBDVPROC) load(userptr, "glGetVertexAttribdv");
+    glad_glGetVertexAttribfv = (PFNGLGETVERTEXATTRIBFVPROC) load(userptr, "glGetVertexAttribfv");
+    glad_glGetVertexAttribiv = (PFNGLGETVERTEXATTRIBIVPROC) load(userptr, "glGetVertexAttribiv");
+    glad_glIsProgram = (PFNGLISPROGRAMPROC) load(userptr, "glIsProgram");
+    glad_glIsShader = (PFNGLISSHADERPROC) load(userptr, "glIsShader");
+    glad_glLinkProgram = (PFNGLLINKPROGRAMPROC) load(userptr, "glLinkProgram");
+    glad_glShaderSource = (PFNGLSHADERSOURCEPROC) load(userptr, "glShaderSource");
+    glad_glStencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC) load(userptr, "glStencilFuncSeparate");
+    glad_glStencilMaskSeparate = (PFNGLSTENCILMASKSEPARATEPROC) load(userptr, "glStencilMaskSeparate");
+    glad_glStencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC) load(userptr, "glStencilOpSeparate");
+    glad_glUniform1f = (PFNGLUNIFORM1FPROC) load(userptr, "glUniform1f");
+    glad_glUniform1fv = (PFNGLUNIFORM1FVPROC) load(userptr, "glUniform1fv");
+    glad_glUniform1i = (PFNGLUNIFORM1IPROC) load(userptr, "glUniform1i");
+    glad_glUniform1iv = (PFNGLUNIFORM1IVPROC) load(userptr, "glUniform1iv");
+    glad_glUniform2f = (PFNGLUNIFORM2FPROC) load(userptr, "glUniform2f");
+    glad_glUniform2fv = (PFNGLUNIFORM2FVPROC) load(userptr, "glUniform2fv");
+    glad_glUniform2i = (PFNGLUNIFORM2IPROC) load(userptr, "glUniform2i");
+    glad_glUniform2iv = (PFNGLUNIFORM2IVPROC) load(userptr, "glUniform2iv");
+    glad_glUniform3f = (PFNGLUNIFORM3FPROC) load(userptr, "glUniform3f");
+    glad_glUniform3fv = (PFNGLUNIFORM3FVPROC) load(userptr, "glUniform3fv");
+    glad_glUniform3i = (PFNGLUNIFORM3IPROC) load(userptr, "glUniform3i");
+    glad_glUniform3iv = (PFNGLUNIFORM3IVPROC) load(userptr, "glUniform3iv");
+    glad_glUniform4f = (PFNGLUNIFORM4FPROC) load(userptr, "glUniform4f");
+    glad_glUniform4fv = (PFNGLUNIFORM4FVPROC) load(userptr, "glUniform4fv");
+    glad_glUniform4i = (PFNGLUNIFORM4IPROC) load(userptr, "glUniform4i");
+    glad_glUniform4iv = (PFNGLUNIFORM4IVPROC) load(userptr, "glUniform4iv");
+    glad_glUniformMatrix2fv = (PFNGLUNIFORMMATRIX2FVPROC) load(userptr, "glUniformMatrix2fv");
+    glad_glUniformMatrix3fv = (PFNGLUNIFORMMATRIX3FVPROC) load(userptr, "glUniformMatrix3fv");
+    glad_glUniformMatrix4fv = (PFNGLUNIFORMMATRIX4FVPROC) load(userptr, "glUniformMatrix4fv");
+    glad_glUseProgram = (PFNGLUSEPROGRAMPROC) load(userptr, "glUseProgram");
+    glad_glValidateProgram = (PFNGLVALIDATEPROGRAMPROC) load(userptr, "glValidateProgram");
+    glad_glVertexAttrib1d = (PFNGLVERTEXATTRIB1DPROC) load(userptr, "glVertexAttrib1d");
+    glad_glVertexAttrib1dv = (PFNGLVERTEXATTRIB1DVPROC) load(userptr, "glVertexAttrib1dv");
+    glad_glVertexAttrib1f = (PFNGLVERTEXATTRIB1FPROC) load(userptr, "glVertexAttrib1f");
+    glad_glVertexAttrib1fv = (PFNGLVERTEXATTRIB1FVPROC) load(userptr, "glVertexAttrib1fv");
+    glad_glVertexAttrib1s = (PFNGLVERTEXATTRIB1SPROC) load(userptr, "glVertexAttrib1s");
+    glad_glVertexAttrib1sv = (PFNGLVERTEXATTRIB1SVPROC) load(userptr, "glVertexAttrib1sv");
+    glad_glVertexAttrib2d = (PFNGLVERTEXATTRIB2DPROC) load(userptr, "glVertexAttrib2d");
+    glad_glVertexAttrib2dv = (PFNGLVERTEXATTRIB2DVPROC) load(userptr, "glVertexAttrib2dv");
+    glad_glVertexAttrib2f = (PFNGLVERTEXATTRIB2FPROC) load(userptr, "glVertexAttrib2f");
+    glad_glVertexAttrib2fv = (PFNGLVERTEXATTRIB2FVPROC) load(userptr, "glVertexAttrib2fv");
+    glad_glVertexAttrib2s = (PFNGLVERTEXATTRIB2SPROC) load(userptr, "glVertexAttrib2s");
+    glad_glVertexAttrib2sv = (PFNGLVERTEXATTRIB2SVPROC) load(userptr, "glVertexAttrib2sv");
+    glad_glVertexAttrib3d = (PFNGLVERTEXATTRIB3DPROC) load(userptr, "glVertexAttrib3d");
+    glad_glVertexAttrib3dv = (PFNGLVERTEXATTRIB3DVPROC) load(userptr, "glVertexAttrib3dv");
+    glad_glVertexAttrib3f = (PFNGLVERTEXATTRIB3FPROC) load(userptr, "glVertexAttrib3f");
+    glad_glVertexAttrib3fv = (PFNGLVERTEXATTRIB3FVPROC) load(userptr, "glVertexAttrib3fv");
+    glad_glVertexAttrib3s = (PFNGLVERTEXATTRIB3SPROC) load(userptr, "glVertexAttrib3s");
+    glad_glVertexAttrib3sv = (PFNGLVERTEXATTRIB3SVPROC) load(userptr, "glVertexAttrib3sv");
+    glad_glVertexAttrib4Nbv = (PFNGLVERTEXATTRIB4NBVPROC) load(userptr, "glVertexAttrib4Nbv");
+    glad_glVertexAttrib4Niv = (PFNGLVERTEXATTRIB4NIVPROC) load(userptr, "glVertexAttrib4Niv");
+    glad_glVertexAttrib4Nsv = (PFNGLVERTEXATTRIB4NSVPROC) load(userptr, "glVertexAttrib4Nsv");
+    glad_glVertexAttrib4Nub = (PFNGLVERTEXATTRIB4NUBPROC) load(userptr, "glVertexAttrib4Nub");
+    glad_glVertexAttrib4Nubv = (PFNGLVERTEXATTRIB4NUBVPROC) load(userptr, "glVertexAttrib4Nubv");
+    glad_glVertexAttrib4Nuiv = (PFNGLVERTEXATTRIB4NUIVPROC) load(userptr, "glVertexAttrib4Nuiv");
+    glad_glVertexAttrib4Nusv = (PFNGLVERTEXATTRIB4NUSVPROC) load(userptr, "glVertexAttrib4Nusv");
+    glad_glVertexAttrib4bv = (PFNGLVERTEXATTRIB4BVPROC) load(userptr, "glVertexAttrib4bv");
+    glad_glVertexAttrib4d = (PFNGLVERTEXATTRIB4DPROC) load(userptr, "glVertexAttrib4d");
+    glad_glVertexAttrib4dv = (PFNGLVERTEXATTRIB4DVPROC) load(userptr, "glVertexAttrib4dv");
+    glad_glVertexAttrib4f = (PFNGLVERTEXATTRIB4FPROC) load(userptr, "glVertexAttrib4f");
+    glad_glVertexAttrib4fv = (PFNGLVERTEXATTRIB4FVPROC) load(userptr, "glVertexAttrib4fv");
+    glad_glVertexAttrib4iv = (PFNGLVERTEXATTRIB4IVPROC) load(userptr, "glVertexAttrib4iv");
+    glad_glVertexAttrib4s = (PFNGLVERTEXATTRIB4SPROC) load(userptr, "glVertexAttrib4s");
+    glad_glVertexAttrib4sv = (PFNGLVERTEXATTRIB4SVPROC) load(userptr, "glVertexAttrib4sv");
+    glad_glVertexAttrib4ubv = (PFNGLVERTEXATTRIB4UBVPROC) load(userptr, "glVertexAttrib4ubv");
+    glad_glVertexAttrib4uiv = (PFNGLVERTEXATTRIB4UIVPROC) load(userptr, "glVertexAttrib4uiv");
+    glad_glVertexAttrib4usv = (PFNGLVERTEXATTRIB4USVPROC) load(userptr, "glVertexAttrib4usv");
+    glad_glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC) load(userptr, "glVertexAttribPointer");
+}
+static void glad_gl_load_GL_VERSION_2_1( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_GL_VERSION_2_1) return;
+    glad_glUniformMatrix2x3fv = (PFNGLUNIFORMMATRIX2X3FVPROC) load(userptr, "glUniformMatrix2x3fv");
+    glad_glUniformMatrix2x4fv = (PFNGLUNIFORMMATRIX2X4FVPROC) load(userptr, "glUniformMatrix2x4fv");
+    glad_glUniformMatrix3x2fv = (PFNGLUNIFORMMATRIX3X2FVPROC) load(userptr, "glUniformMatrix3x2fv");
+    glad_glUniformMatrix3x4fv = (PFNGLUNIFORMMATRIX3X4FVPROC) load(userptr, "glUniformMatrix3x4fv");
+    glad_glUniformMatrix4x2fv = (PFNGLUNIFORMMATRIX4X2FVPROC) load(userptr, "glUniformMatrix4x2fv");
+    glad_glUniformMatrix4x3fv = (PFNGLUNIFORMMATRIX4X3FVPROC) load(userptr, "glUniformMatrix4x3fv");
+}
+static void glad_gl_load_GL_VERSION_3_0( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_GL_VERSION_3_0) return;
+    glad_glBeginConditionalRender = (PFNGLBEGINCONDITIONALRENDERPROC) load(userptr, "glBeginConditionalRender");
+    glad_glBeginTransformFeedback = (PFNGLBEGINTRANSFORMFEEDBACKPROC) load(userptr, "glBeginTransformFeedback");
+    glad_glBindBufferBase = (PFNGLBINDBUFFERBASEPROC) load(userptr, "glBindBufferBase");
+    glad_glBindBufferRange = (PFNGLBINDBUFFERRANGEPROC) load(userptr, "glBindBufferRange");
+    glad_glBindFragDataLocation = (PFNGLBINDFRAGDATALOCATIONPROC) load(userptr, "glBindFragDataLocation");
+    glad_glBindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC) load(userptr, "glBindFramebuffer");
+    glad_glBindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC) load(userptr, "glBindRenderbuffer");
+    glad_glBindVertexArray = (PFNGLBINDVERTEXARRAYPROC) load(userptr, "glBindVertexArray");
+    glad_glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC) load(userptr, "glBlitFramebuffer");
+    glad_glCheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC) load(userptr, "glCheckFramebufferStatus");
+    glad_glClampColor = (PFNGLCLAMPCOLORPROC) load(userptr, "glClampColor");
+    glad_glClearBufferfi = (PFNGLCLEARBUFFERFIPROC) load(userptr, "glClearBufferfi");
+    glad_glClearBufferfv = (PFNGLCLEARBUFFERFVPROC) load(userptr, "glClearBufferfv");
+    glad_glClearBufferiv = (PFNGLCLEARBUFFERIVPROC) load(userptr, "glClearBufferiv");
+    glad_glClearBufferuiv = (PFNGLCLEARBUFFERUIVPROC) load(userptr, "glClearBufferuiv");
+    glad_glColorMaski = (PFNGLCOLORMASKIPROC) load(userptr, "glColorMaski");
+    glad_glDeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC) load(userptr, "glDeleteFramebuffers");
+    glad_glDeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC) load(userptr, "glDeleteRenderbuffers");
+    glad_glDeleteVertexArrays = (PFNGLDELETEVERTEXARRAYSPROC) load(userptr, "glDeleteVertexArrays");
+    glad_glDisablei = (PFNGLDISABLEIPROC) load(userptr, "glDisablei");
+    glad_glEnablei = (PFNGLENABLEIPROC) load(userptr, "glEnablei");
+    glad_glEndConditionalRender = (PFNGLENDCONDITIONALRENDERPROC) load(userptr, "glEndConditionalRender");
+    glad_glEndTransformFeedback = (PFNGLENDTRANSFORMFEEDBACKPROC) load(userptr, "glEndTransformFeedback");
+    glad_glFlushMappedBufferRange = (PFNGLFLUSHMAPPEDBUFFERRANGEPROC) load(userptr, "glFlushMappedBufferRange");
+    glad_glFramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC) load(userptr, "glFramebufferRenderbuffer");
+    glad_glFramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC) load(userptr, "glFramebufferTexture1D");
+    glad_glFramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC) load(userptr, "glFramebufferTexture2D");
+    glad_glFramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC) load(userptr, "glFramebufferTexture3D");
+    glad_glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC) load(userptr, "glFramebufferTextureLayer");
+    glad_glGenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC) load(userptr, "glGenFramebuffers");
+    glad_glGenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC) load(userptr, "glGenRenderbuffers");
+    glad_glGenVertexArrays = (PFNGLGENVERTEXARRAYSPROC) load(userptr, "glGenVertexArrays");
+    glad_glGenerateMipmap = (PFNGLGENERATEMIPMAPPROC) load(userptr, "glGenerateMipmap");
+    glad_glGetBooleani_v = (PFNGLGETBOOLEANI_VPROC) load(userptr, "glGetBooleani_v");
+    glad_glGetFragDataLocation = (PFNGLGETFRAGDATALOCATIONPROC) load(userptr, "glGetFragDataLocation");
+    glad_glGetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC) load(userptr, "glGetFramebufferAttachmentParameteriv");
+    glad_glGetIntegeri_v = (PFNGLGETINTEGERI_VPROC) load(userptr, "glGetIntegeri_v");
+    glad_glGetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC) load(userptr, "glGetRenderbufferParameteriv");
+    glad_glGetStringi = (PFNGLGETSTRINGIPROC) load(userptr, "glGetStringi");
+    glad_glGetTexParameterIiv = (PFNGLGETTEXPARAMETERIIVPROC) load(userptr, "glGetTexParameterIiv");
+    glad_glGetTexParameterIuiv = (PFNGLGETTEXPARAMETERIUIVPROC) load(userptr, "glGetTexParameterIuiv");
+    glad_glGetTransformFeedbackVarying = (PFNGLGETTRANSFORMFEEDBACKVARYINGPROC) load(userptr, "glGetTransformFeedbackVarying");
+    glad_glGetUniformuiv = (PFNGLGETUNIFORMUIVPROC) load(userptr, "glGetUniformuiv");
+    glad_glGetVertexAttribIiv = (PFNGLGETVERTEXATTRIBIIVPROC) load(userptr, "glGetVertexAttribIiv");
+    glad_glGetVertexAttribIuiv = (PFNGLGETVERTEXATTRIBIUIVPROC) load(userptr, "glGetVertexAttribIuiv");
+    glad_glIsEnabledi = (PFNGLISENABLEDIPROC) load(userptr, "glIsEnabledi");
+    glad_glIsFramebuffer = (PFNGLISFRAMEBUFFERPROC) load(userptr, "glIsFramebuffer");
+    glad_glIsRenderbuffer = (PFNGLISRENDERBUFFERPROC) load(userptr, "glIsRenderbuffer");
+    glad_glIsVertexArray = (PFNGLISVERTEXARRAYPROC) load(userptr, "glIsVertexArray");
+    glad_glMapBufferRange = (PFNGLMAPBUFFERRANGEPROC) load(userptr, "glMapBufferRange");
+    glad_glRenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC) load(userptr, "glRenderbufferStorage");
+    glad_glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC) load(userptr, "glRenderbufferStorageMultisample");
+    glad_glTexParameterIiv = (PFNGLTEXPARAMETERIIVPROC) load(userptr, "glTexParameterIiv");
+    glad_glTexParameterIuiv = (PFNGLTEXPARAMETERIUIVPROC) load(userptr, "glTexParameterIuiv");
+    glad_glTransformFeedbackVaryings = (PFNGLTRANSFORMFEEDBACKVARYINGSPROC) load(userptr, "glTransformFeedbackVaryings");
+    glad_glUniform1ui = (PFNGLUNIFORM1UIPROC) load(userptr, "glUniform1ui");
+    glad_glUniform1uiv = (PFNGLUNIFORM1UIVPROC) load(userptr, "glUniform1uiv");
+    glad_glUniform2ui = (PFNGLUNIFORM2UIPROC) load(userptr, "glUniform2ui");
+    glad_glUniform2uiv = (PFNGLUNIFORM2UIVPROC) load(userptr, "glUniform2uiv");
+    glad_glUniform3ui = (PFNGLUNIFORM3UIPROC) load(userptr, "glUniform3ui");
+    glad_glUniform3uiv = (PFNGLUNIFORM3UIVPROC) load(userptr, "glUniform3uiv");
+    glad_glUniform4ui = (PFNGLUNIFORM4UIPROC) load(userptr, "glUniform4ui");
+    glad_glUniform4uiv = (PFNGLUNIFORM4UIVPROC) load(userptr, "glUniform4uiv");
+    glad_glVertexAttribI1i = (PFNGLVERTEXATTRIBI1IPROC) load(userptr, "glVertexAttribI1i");
+    glad_glVertexAttribI1iv = (PFNGLVERTEXATTRIBI1IVPROC) load(userptr, "glVertexAttribI1iv");
+    glad_glVertexAttribI1ui = (PFNGLVERTEXATTRIBI1UIPROC) load(userptr, "glVertexAttribI1ui");
+    glad_glVertexAttribI1uiv = (PFNGLVERTEXATTRIBI1UIVPROC) load(userptr, "glVertexAttribI1uiv");
+    glad_glVertexAttribI2i = (PFNGLVERTEXATTRIBI2IPROC) load(userptr, "glVertexAttribI2i");
+    glad_glVertexAttribI2iv = (PFNGLVERTEXATTRIBI2IVPROC) load(userptr, "glVertexAttribI2iv");
+    glad_glVertexAttribI2ui = (PFNGLVERTEXATTRIBI2UIPROC) load(userptr, "glVertexAttribI2ui");
+    glad_glVertexAttribI2uiv = (PFNGLVERTEXATTRIBI2UIVPROC) load(userptr, "glVertexAttribI2uiv");
+    glad_glVertexAttribI3i = (PFNGLVERTEXATTRIBI3IPROC) load(userptr, "glVertexAttribI3i");
+    glad_glVertexAttribI3iv = (PFNGLVERTEXATTRIBI3IVPROC) load(userptr, "glVertexAttribI3iv");
+    glad_glVertexAttribI3ui = (PFNGLVERTEXATTRIBI3UIPROC) load(userptr, "glVertexAttribI3ui");
+    glad_glVertexAttribI3uiv = (PFNGLVERTEXATTRIBI3UIVPROC) load(userptr, "glVertexAttribI3uiv");
+    glad_glVertexAttribI4bv = (PFNGLVERTEXATTRIBI4BVPROC) load(userptr, "glVertexAttribI4bv");
+    glad_glVertexAttribI4i = (PFNGLVERTEXATTRIBI4IPROC) load(userptr, "glVertexAttribI4i");
+    glad_glVertexAttribI4iv = (PFNGLVERTEXATTRIBI4IVPROC) load(userptr, "glVertexAttribI4iv");
+    glad_glVertexAttribI4sv = (PFNGLVERTEXATTRIBI4SVPROC) load(userptr, "glVertexAttribI4sv");
+    glad_glVertexAttribI4ubv = (PFNGLVERTEXATTRIBI4UBVPROC) load(userptr, "glVertexAttribI4ubv");
+    glad_glVertexAttribI4ui = (PFNGLVERTEXATTRIBI4UIPROC) load(userptr, "glVertexAttribI4ui");
+    glad_glVertexAttribI4uiv = (PFNGLVERTEXATTRIBI4UIVPROC) load(userptr, "glVertexAttribI4uiv");
+    glad_glVertexAttribI4usv = (PFNGLVERTEXATTRIBI4USVPROC) load(userptr, "glVertexAttribI4usv");
+    glad_glVertexAttribIPointer = (PFNGLVERTEXATTRIBIPOINTERPROC) load(userptr, "glVertexAttribIPointer");
+}
+static void glad_gl_load_GL_VERSION_3_1( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_GL_VERSION_3_1) return;
+    glad_glBindBufferBase = (PFNGLBINDBUFFERBASEPROC) load(userptr, "glBindBufferBase");
+    glad_glBindBufferRange = (PFNGLBINDBUFFERRANGEPROC) load(userptr, "glBindBufferRange");
+    glad_glCopyBufferSubData = (PFNGLCOPYBUFFERSUBDATAPROC) load(userptr, "glCopyBufferSubData");
+    glad_glDrawArraysInstanced = (PFNGLDRAWARRAYSINSTANCEDPROC) load(userptr, "glDrawArraysInstanced");
+    glad_glDrawElementsInstanced = (PFNGLDRAWELEMENTSINSTANCEDPROC) load(userptr, "glDrawElementsInstanced");
+    glad_glGetActiveUniformBlockName = (PFNGLGETACTIVEUNIFORMBLOCKNAMEPROC) load(userptr, "glGetActiveUniformBlockName");
+    glad_glGetActiveUniformBlockiv = (PFNGLGETACTIVEUNIFORMBLOCKIVPROC) load(userptr, "glGetActiveUniformBlockiv");
+    glad_glGetActiveUniformName = (PFNGLGETACTIVEUNIFORMNAMEPROC) load(userptr, "glGetActiveUniformName");
+    glad_glGetActiveUniformsiv = (PFNGLGETACTIVEUNIFORMSIVPROC) load(userptr, "glGetActiveUniformsiv");
+    glad_glGetIntegeri_v = (PFNGLGETINTEGERI_VPROC) load(userptr, "glGetIntegeri_v");
+    glad_glGetUniformBlockIndex = (PFNGLGETUNIFORMBLOCKINDEXPROC) load(userptr, "glGetUniformBlockIndex");
+    glad_glGetUniformIndices = (PFNGLGETUNIFORMINDICESPROC) load(userptr, "glGetUniformIndices");
+    glad_glPrimitiveRestartIndex = (PFNGLPRIMITIVERESTARTINDEXPROC) load(userptr, "glPrimitiveRestartIndex");
+    glad_glTexBuffer = (PFNGLTEXBUFFERPROC) load(userptr, "glTexBuffer");
+    glad_glUniformBlockBinding = (PFNGLUNIFORMBLOCKBINDINGPROC) load(userptr, "glUniformBlockBinding");
+}
+static void glad_gl_load_GL_VERSION_3_2( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_GL_VERSION_3_2) return;
+    glad_glClientWaitSync = (PFNGLCLIENTWAITSYNCPROC) load(userptr, "glClientWaitSync");
+    glad_glDeleteSync = (PFNGLDELETESYNCPROC) load(userptr, "glDeleteSync");
+    glad_glDrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC) load(userptr, "glDrawElementsBaseVertex");
+    glad_glDrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC) load(userptr, "glDrawElementsInstancedBaseVertex");
+    glad_glDrawRangeElementsBaseVertex = (PFNGLDRAWRANGEELEMENTSBASEVERTEXPROC) load(userptr, "glDrawRangeElementsBaseVertex");
+    glad_glFenceSync = (PFNGLFENCESYNCPROC) load(userptr, "glFenceSync");
+    glad_glFramebufferTexture = (PFNGLFRAMEBUFFERTEXTUREPROC) load(userptr, "glFramebufferTexture");
+    glad_glGetBufferParameteri64v = (PFNGLGETBUFFERPARAMETERI64VPROC) load(userptr, "glGetBufferParameteri64v");
+    glad_glGetInteger64i_v = (PFNGLGETINTEGER64I_VPROC) load(userptr, "glGetInteger64i_v");
+    glad_glGetInteger64v = (PFNGLGETINTEGER64VPROC) load(userptr, "glGetInteger64v");
+    glad_glGetMultisamplefv = (PFNGLGETMULTISAMPLEFVPROC) load(userptr, "glGetMultisamplefv");
+    glad_glGetSynciv = (PFNGLGETSYNCIVPROC) load(userptr, "glGetSynciv");
+    glad_glIsSync = (PFNGLISSYNCPROC) load(userptr, "glIsSync");
+    glad_glMultiDrawElementsBaseVertex = (PFNGLMULTIDRAWELEMENTSBASEVERTEXPROC) load(userptr, "glMultiDrawElementsBaseVertex");
+    glad_glProvokingVertex = (PFNGLPROVOKINGVERTEXPROC) load(userptr, "glProvokingVertex");
+    glad_glSampleMaski = (PFNGLSAMPLEMASKIPROC) load(userptr, "glSampleMaski");
+    glad_glTexImage2DMultisample = (PFNGLTEXIMAGE2DMULTISAMPLEPROC) load(userptr, "glTexImage2DMultisample");
+    glad_glTexImage3DMultisample = (PFNGLTEXIMAGE3DMULTISAMPLEPROC) load(userptr, "glTexImage3DMultisample");
+    glad_glWaitSync = (PFNGLWAITSYNCPROC) load(userptr, "glWaitSync");
+}
+static void glad_gl_load_GL_VERSION_3_3( GLADuserptrloadfunc load, void* userptr) {
+    if(!GLAD_GL_VERSION_3_3) return;
+    glad_glBindFragDataLocationIndexed = (PFNGLBINDFRAGDATALOCATIONINDEXEDPROC) load(userptr, "glBindFragDataLocationIndexed");
+    glad_glBindSampler = (PFNGLBINDSAMPLERPROC) load(userptr, "glBindSampler");
+    glad_glDeleteSamplers = (PFNGLDELETESAMPLERSPROC) load(userptr, "glDeleteSamplers");
+    glad_glGenSamplers = (PFNGLGENSAMPLERSPROC) load(userptr, "glGenSamplers");
+    glad_glGetFragDataIndex = (PFNGLGETFRAGDATAINDEXPROC) load(userptr, "glGetFragDataIndex");
+    glad_glGetQueryObjecti64v = (PFNGLGETQUERYOBJECTI64VPROC) load(userptr, "glGetQueryObjecti64v");
+    glad_glGetQueryObjectui64v = (PFNGLGETQUERYOBJECTUI64VPROC) load(userptr, "glGetQueryObjectui64v");
+    glad_glGetSamplerParameterIiv = (PFNGLGETSAMPLERPARAMETERIIVPROC) load(userptr, "glGetSamplerParameterIiv");
+    glad_glGetSamplerParameterIuiv = (PFNGLGETSAMPLERPARAMETERIUIVPROC) load(userptr, "glGetSamplerParameterIuiv");
+    glad_glGetSamplerParameterfv = (PFNGLGETSAMPLERPARAMETERFVPROC) load(userptr, "glGetSamplerParameterfv");
+    glad_glGetSamplerParameteriv = (PFNGLGETSAMPLERPARAMETERIVPROC) load(userptr, "glGetSamplerParameteriv");
+    glad_glIsSampler = (PFNGLISSAMPLERPROC) load(userptr, "glIsSampler");
+    glad_glQueryCounter = (PFNGLQUERYCOUNTERPROC) load(userptr, "glQueryCounter");
+    glad_glSamplerParameterIiv = (PFNGLSAMPLERPARAMETERIIVPROC) load(userptr, "glSamplerParameterIiv");
+    glad_glSamplerParameterIuiv = (PFNGLSAMPLERPARAMETERIUIVPROC) load(userptr, "glSamplerParameterIuiv");
+    glad_glSamplerParameterf = (PFNGLSAMPLERPARAMETERFPROC) load(userptr, "glSamplerParameterf");
+    glad_glSamplerParameterfv = (PFNGLSAMPLERPARAMETERFVPROC) load(userptr, "glSamplerParameterfv");
+    glad_glSamplerParameteri = (PFNGLSAMPLERPARAMETERIPROC) load(userptr, "glSamplerParameteri");
+    glad_glSamplerParameteriv = (PFNGLSAMPLERPARAMETERIVPROC) load(userptr, "glSamplerParameteriv");
+    glad_glVertexAttribDivisor = (PFNGLVERTEXATTRIBDIVISORPROC) load(userptr, "glVertexAttribDivisor");
+    glad_glVertexAttribP1ui = (PFNGLVERTEXATTRIBP1UIPROC) load(userptr, "glVertexAttribP1ui");
+    glad_glVertexAttribP1uiv = (PFNGLVERTEXATTRIBP1UIVPROC) load(userptr, "glVertexAttribP1uiv");
+    glad_glVertexAttribP2ui = (PFNGLVERTEXATTRIBP2UIPROC) load(userptr, "glVertexAttribP2ui");
+    glad_glVertexAttribP2uiv = (PFNGLVERTEXATTRIBP2UIVPROC) load(userptr, "glVertexAttribP2uiv");
+    glad_glVertexAttribP3ui = (PFNGLVERTEXATTRIBP3UIPROC) load(userptr, "glVertexAttribP3ui");
+    glad_glVertexAttribP3uiv = (PFNGLVERTEXATTRIBP3UIVPROC) load(userptr, "glVertexAttribP3uiv");
+    glad_glVertexAttribP4ui = (PFNGLVERTEXATTRIBP4UIPROC) load(userptr, "glVertexAttribP4ui");
+    glad_glVertexAttribP4uiv = (PFNGLVERTEXATTRIBP4UIVPROC) load(userptr, "glVertexAttribP4uiv");
+}
+
+
+
+static void glad_gl_free_extensions(char **exts_i) {
+    if (exts_i != NULL) {
+        unsigned int index;
+        for(index = 0; exts_i[index]; index++) {
+            free((void *) (exts_i[index]));
+        }
+        free((void *)exts_i);
+        exts_i = NULL;
+    }
+}
+static int glad_gl_get_extensions( const char **out_exts, char ***out_exts_i) {
+#if defined(GL_ES_VERSION_3_0) || defined(GL_VERSION_3_0)
+    if (glad_glGetStringi != NULL && glad_glGetIntegerv != NULL) {
+        unsigned int index = 0;
+        unsigned int num_exts_i = 0;
+        char **exts_i = NULL;
+        glad_glGetIntegerv(GL_NUM_EXTENSIONS, (int*) &num_exts_i);
+        exts_i = (char **) malloc((num_exts_i + 1) * (sizeof *exts_i));
+        if (exts_i == NULL) {
+            return 0;
+        }
+        for(index = 0; index < num_exts_i; index++) {
+            const char *gl_str_tmp = (const char*) glad_glGetStringi(GL_EXTENSIONS, index);
+            size_t len = strlen(gl_str_tmp) + 1;
+
+            char *local_str = (char*) malloc(len * sizeof(char));
+            if(local_str == NULL) {
+                exts_i[index] = NULL;
+                glad_gl_free_extensions(exts_i);
+                return 0;
+            }
+
+            memcpy(local_str, gl_str_tmp, len * sizeof(char));
+            exts_i[index] = local_str;
+        }
+        exts_i[index] = NULL;
+
+        *out_exts_i = exts_i;
+
+        return 1;
+    }
+#else
+    GLAD_UNUSED(out_exts_i);
+#endif
+    if (glad_glGetString == NULL) {
+        return 0;
+    }
+    *out_exts = (const char *)glad_glGetString(GL_EXTENSIONS);
+    return 1;
+}
+static int glad_gl_has_extension(const char *exts, char **exts_i, const char *ext) {
+    if(exts_i) {
+        unsigned int index;
+        for(index = 0; exts_i[index]; index++) {
+            const char *e = exts_i[index];
+            if(strcmp(e, ext) == 0) {
+                return 1;
+            }
+        }
+    } else {
+        const char *extensions;
+        const char *loc;
+        const char *terminator;
+        extensions = exts;
+        if(extensions == NULL || ext == NULL) {
+            return 0;
+        }
+        while(1) {
+            loc = strstr(extensions, ext);
+            if(loc == NULL) {
+                return 0;
+            }
+            terminator = loc + strlen(ext);
+            if((loc == extensions || *(loc - 1) == ' ') &&
+                (*terminator == ' ' || *terminator == '\0')) {
+                return 1;
+            }
+            extensions = terminator;
+        }
+    }
+    return 0;
+}
+
+static GLADapiproc glad_gl_get_proc_from_userptr(void *userptr, const char* name) {
+    return (GLAD_GNUC_EXTENSION (GLADapiproc (*)(const char *name)) userptr)(name);
+}
+
+static int glad_gl_find_extensions_gl(void) {
+    const char *exts = NULL;
+    char **exts_i = NULL;
+    if (!glad_gl_get_extensions(&exts, &exts_i)) return 0;
+
+    GLAD_UNUSED(&glad_gl_has_extension);
+
+    glad_gl_free_extensions(exts_i);
+
+    return 1;
+}
+
+static int glad_gl_find_core_gl(void) {
+    int i;
+    const char* version;
+    const char* prefixes[] = {
+        "OpenGL ES-CM ",
+        "OpenGL ES-CL ",
+        "OpenGL ES ",
+        "OpenGL SC ",
+        NULL
+    };
+    int major = 0;
+    int minor = 0;
+    version = (const char*) glad_glGetString(GL_VERSION);
+    if (!version) return 0;
+    for (i = 0;  prefixes[i];  i++) {
+        const size_t length = strlen(prefixes[i]);
+        if (strncmp(version, prefixes[i], length) == 0) {
+            version += length;
+            break;
+        }
+    }
+
+    GLAD_IMPL_UTIL_SSCANF(version, "%d.%d", &major, &minor);
+
+    GLAD_GL_VERSION_1_0 = (major == 1 && minor >= 0) || major > 1;
+    GLAD_GL_VERSION_1_1 = (major == 1 && minor >= 1) || major > 1;
+    GLAD_GL_VERSION_1_2 = (major == 1 && minor >= 2) || major > 1;
+    GLAD_GL_VERSION_1_3 = (major == 1 && minor >= 3) || major > 1;
+    GLAD_GL_VERSION_1_4 = (major == 1 && minor >= 4) || major > 1;
+    GLAD_GL_VERSION_1_5 = (major == 1 && minor >= 5) || major > 1;
+    GLAD_GL_VERSION_2_0 = (major == 2 && minor >= 0) || major > 2;
+    GLAD_GL_VERSION_2_1 = (major == 2 && minor >= 1) || major > 2;
+    GLAD_GL_VERSION_3_0 = (major == 3 && minor >= 0) || major > 3;
+    GLAD_GL_VERSION_3_1 = (major == 3 && minor >= 1) || major > 3;
+    GLAD_GL_VERSION_3_2 = (major == 3 && minor >= 2) || major > 3;
+    GLAD_GL_VERSION_3_3 = (major == 3 && minor >= 3) || major > 3;
+
+    return GLAD_MAKE_VERSION(major, minor);
+}
+
+int gladLoadGLUserPtr( GLADuserptrloadfunc load, void *userptr) {
+    int version;
+
+    glad_glGetString = (PFNGLGETSTRINGPROC) load(userptr, "glGetString");
+    if(glad_glGetString == NULL) return 0;
+    version = glad_gl_find_core_gl();
+
+    glad_gl_load_GL_VERSION_1_0(load, userptr);
+    glad_gl_load_GL_VERSION_1_1(load, userptr);
+    glad_gl_load_GL_VERSION_1_2(load, userptr);
+    glad_gl_load_GL_VERSION_1_3(load, userptr);
+    glad_gl_load_GL_VERSION_1_4(load, userptr);
+    glad_gl_load_GL_VERSION_1_5(load, userptr);
+    glad_gl_load_GL_VERSION_2_0(load, userptr);
+    glad_gl_load_GL_VERSION_2_1(load, userptr);
+    glad_gl_load_GL_VERSION_3_0(load, userptr);
+    glad_gl_load_GL_VERSION_3_1(load, userptr);
+    glad_gl_load_GL_VERSION_3_2(load, userptr);
+    glad_gl_load_GL_VERSION_3_3(load, userptr);
+
+    if (!glad_gl_find_extensions_gl()) return 0;
+
+
+
+    return version;
+}
+
+
+int gladLoadGL( GLADloadfunc load) {
+    return gladLoadGLUserPtr( glad_gl_get_proc_from_userptr, GLAD_GNUC_EXTENSION (void*) load);
+}
+
+
+
+ 
+
+
+#ifdef __cplusplus
+}
+#endif

makefile

@@ -1,149 +0,0 @@
-# Copyright (c) 2025 Quinn
-# Licensed under the MIT Licence. See LICENSE for details
-
-# dependencies:
-#  - make
-#  - C compiler
-#  - glfw3 (install glfw3:x64-mingw-dynamic via vcpkg for cross compilation)
-#  - xxd (tinyxxd recommended; faster)
-#  - (windows) git bash (recommended)
-
-# build configuration, information about the current build process
-NAME    := mcaselector-lite
-VERSION := 0.0.0
-DEBUG   ?= 0
-CC      ?= cc
-LD      ?= ld
-CFLAGS  += -c -std=gnu99 -Wall -Wextra -Wpedantic -Ilib -MMD -MP
-LDFLAGS += -lm
-MARCH   ?= $(shell uname -m)
-KERNEL  ?= $(shell uname -s | tr '[:upper:]' '[:lower:]')
-
-# check whether KERNEL is something nonsensical
-ISWIN := $(if $(filter linux darwin freebsd netbsd openbsd,$(KERNEL)),0,1)
-
-# profiles
-ifeq ($(DEBUG),1)         # check whether we're debugging
-CFLAGS  += -UNDEBUG -Og -g
-PROF    := dbg
-ifeq ($(ISWIN),0)
-CFLAGS  += -fsanitize=address,undefined
-LDFLAGS += -fsanitize=address,undefined
-endif
-else ifeq ($(DEBUG),test) # check whether we're perhaps testing
-CFLAGS  += -UNDEBUG -O2 -g
-PROF    := test
-ifeq ($(ISWIN),0)
-CFLAGS  += -fsanitize=address
-LDFLAGS += -fsanitize=address
-endif
-else                      # otherwise, assume release
-CFLAGS  += -DNDEBUG -O2
-PROF    := rel
-endif
-
-# setup the VCPKG_TRIPLET
-# because microsoft thinks they should use a different method of classifying stuff than the standard
-ifneq ($(VCPKG_ROOT),)
-VCPKG_TRIPLET ?= $(strip                        \
-	$(if $(filter x86_64,$(MARCH)),x64,           \
-))-$(strip                                      \
-	$(if $(filter linux,$(KERNEL)),linux-dynamic, \
-	$(if $(filter darwin,$(KERNEL)),osx-dynamic,  \
-	mingw-static))                                \
-)
-
-# override the pkg config path, so it is used instead of system packages
-export PKG_CONFIG_PATH := $(VCPKG_ROOT)/installed/$(VCPKG_TRIPLET)/lib/pkgconfig
-$(info using PKG_CONFIG_PATH: '$(PKG_CONFIG_PATH)')
-else ifneq ($(shell which pkg-config),)
-$(warning couldn't find VCPKG_ROOT, attempting to use system packages using pkg-config!)
-else
-$(error neither VCPKG_ROOT nor pkg-config were available!)
-endif
-
-# use pkg-config to set the include and linker information
-CFLAGS  += $(shell pkg-config --cflags glfw3)
-LDFLAGS += $(shell pkg-config --libs   glfw3)
-
-# windows specific handling
-ifeq ($(ISWIN),1)
-NAME    := $(NAME).exe
-endif
-
-# build directory structure
-DIR_BIN := bin/$(MARCH)-$(KERNEL)/$(VERSION)/$(PROF)
-DIR_OBJ := obj/$(MARCH)-$(KERNEL)/$(VERSION)/$(PROF)
-
-# get source files
-ifneq ($(DEBUG),test)
-SRC := $(shell find src/ -name '*.c')
-else
-SRC    := $(filter-out src/main.c, $(shell find test/ src/ -name '*.c'))
-endif
-RES   := $(shell find res/ -type f)
-
-# output files
-BIN := $(DIR_BIN)/$(NAME)
-OBJ := $(SRC:%.c=$(DIR_OBJ)/%.o) $(RES:%=$(DIR_OBJ)/%.o)
-DEP := $(OBJ:.o=.d)
-
-COMPILE_COMMANDS := $(DIR_OBJ)/compile_commands.json
-
-.PHONY: run compile echo
-run:     echo compile_commands $(BIN)
-ifeq ($(ISWIN),0)
-	$(BIN)
-else
-	wine $(BIN)
-endif
-compile: echo compile_commands $(BIN)
-echo:
-	$(info $(shell printf "\033[36m")compiling for: $(MARCH), $(KERNEL)$(shell printf "\033[0m"))
-	$(info $(shell printf "\033[36m")using compiler: $(CC)$(shell printf "\033[0m"))
-
-# some definitions for "default" and assumed compilers, for bulk selection
-.PHONY: all x86_64-linux-gnu-gcc x86_64-w64-mingw32-gcc
-all: x86_64-linux-gnu-gcc x86_64-w64-mingw32-gcc
-x86_64-linux-gnu-gcc:;   $(MAKE) $(CALL) $(MAKEFLAGS) CC=$@ MARCH=x86_64 KERNEL=linux NOCMDS=1
-x86_64-w64-mingw32-gcc:; $(MAKE) $(CALL) $(MAKEFLAGS) CC=$@ MARCH=x86_64 KERNEL=mingw NOCMDS=1
-
-# creates the binary (linking step)
-$(BIN): $(OBJ)
-	@mkdir -p $(@D)
-	$(CC) -o $@ $^ $(LDFLAGS)
-
-# compilation rule
-$(DIR_OBJ)/%.o: %.c
-	@mkdir -p $(@D)
-	$(CC) $(CFLAGS) -o $@ $<
-
-# use linker to embed the resources into the final binary
-$(DIR_OBJ)/res/%.o: res/%
-	@mkdir -p $(@D)
-	$(LD) -r -b binary -o $@ $<
-
-.PHONY .NOTPARALLEL:
-clean:
-	rm -rf obj bin compile_commands.json
-
-# update compile commands if the makefile has been updated (for linting)
-compile_commands: # default, empty rule
-ifneq ($(shell which bear),)
-ifneq ($(COMPILE_COMMANDS),)
-ifeq ($(NOCMDS),)
-.PHONY .NOTPARALLEL:
-compile_commands: $(COMPILE_COMMANDS)
-	ln -sf $< compile_commands.json
-
-.NOTPARALLEL:
-$(COMPILE_COMMANDS): makefile
-	@$(warning regenerating compile_commands.json thus recompiling.)
-	@mkdir -p ${@D} # ensure the target directory exists
-	@touch $@       # create the file so it isn't retriggered (will just change modification time if already exists)
-	@bear --output $@ -- make -B compile NOCMDS=1 # rebuild the current target using bear, to create the compile commands
-endif
-endif
-endif
-
--include $(DEP)

src/dat/mcx.c

@@ -0,0 +1,187 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#include "mcx.h"
+
+#include <archive.h>
+#include <assert.h>
+#include <endian.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "../types.h"
+#include "../util/error.h"
+
+#define SECTOR 0x1000 // sector size
+#define TABLE  0x800  // table (total) element count
+#define CHUNKS 0x400  // amount of chunks in a file
+
+enum mcx_compression {
+	MCX_COMPRESSION_GZIP   = 0x01,
+	MCX_COMPRESSION_ZLIB   = 0x02,
+	MCX_COMPRESSION_NONE   = 0x03,
+	MCX_COMPRESSION_LZ4    = 0x04,
+	MCX_COMPRESSION_CUSTOM = 0x7F,
+};
+
+/* first 4 bytes is an i32 indicating remaining bytes, the following byte defines the compression scheme */
+static int mcx_loadchunk(const u8 *restrict buf, const i32 *restrict table, int idx)
+{
+	const u8 *chunk = buf + (be32toh(table[idx]) >> 8) * SECTOR;
+
+	i32 len;
+	memcpy(&len, chunk, 4);
+	len = be32toh(len);
+	chunk += 4;
+
+	struct archive *archive = archive_read_new();
+	archive_read_support_format_raw(archive);
+	switch (*chunk) {
+	case MCX_COMPRESSION_GZIP: /* fall-through; ZLIB is handled under the GZIP filter */
+	case MCX_COMPRESSION_ZLIB:   archive_read_support_filter_gzip(archive); break;
+	case MCX_COMPRESSION_NONE:   archive_read_support_filter_none(archive); break;
+	case MCX_COMPRESSION_LZ4:    archive_read_support_filter_lz4(archive); break;
+	case MCX_COMPRESSION_CUSTOM: archive_read_support_filter_all(archive); break;
+	default:                     fatal("compression type of '%i' is unsupported!", *chunk);
+	}
+
+	if (archive_read_open_memory(archive, chunk, len) != ARCHIVE_OK) {
+		error("failed to decompress %i bytes of compression type %i", len, *chunk);
+		return 1;
+	}
+
+	struct archive_entry *entry;
+	if (archive_read_next_header(archive, &entry) != ARCHIVE_OK) {
+		error("failed to decompress %i bytes of compression type %i", len, *chunk);
+		return 1;
+	}
+
+	ssize size = -1;
+	for (;;) {
+		// TODO: handle buffer
+		// size = archive_read_data(archive, , );
+		if (size < 0) {
+			error("failed to decompress %i bytes of compression type %i", len, *chunk);
+			return 1;
+		}
+		if (size == 0)
+			break;
+		// TODO: handle data
+	}
+
+	return 0;
+}
+
+/* Moves chunks `src_s` to `src_e` (inclusive) from `src`, back onto `dst`. */
+static void mvchunks(u8 *dst, u8 *src, u32 *restrict table, int src_s, int src_e)
+{
+	assert(src > dst);
+	uintptr len = src - dst; // acquire the amount of bytes that we shall move
+	assert(!(len % SECTOR));
+
+	// count how many bytes we need to move, whilst updating location data
+	usize blen = 0;
+	for (src_s++; src_s <= src_e; src_s++) {
+		blen += (be32toh(table[src_s]) & 0xFF) * SECTOR;
+		table[src_s] -= htobe32((len / SECTOR) << 8);
+	}
+	memmove(dst, src, blen);
+}
+
+/* Deletes chunk `sidx` by moving chunks up to `eidx` back over `sidx` in `buf`.
+ * `rmb` is an optional additional offset that can be applied, and signifies bytes already removed.
+ * Returns the bytes removed by this function. */
+static usize delchunk(u8 *restrict buf, u32 *restrict table, usize rmb, int sidx, int eidx)
+{
+	// load the table data
+	usize slen, bidx, blen;
+	slen = be32toh(table[sidx]) & 0xFF;          // acquire the sector length of the chunk
+	bidx = (be32toh(table[sidx]) >> 8) * SECTOR; // acquire and compute the byte offset the chunk starts at
+	blen = slen * SECTOR;                        // compute the byte length of the chunk
+
+	// reset the table data
+	table[sidx]          = 0;
+	table[sidx + CHUNKS] = htobe32(time(NULL)); // assign the current time to the timestamp, for correctness  NOTE: might need to zero-out instead
+
+	// move the succeeding chunks over the deleted chunk
+	u8 *dst = buf + bidx - rmb;
+	u8 *src = buf + bidx + blen;
+	mvchunks(dst, src, table, sidx, eidx - 1);
+	return blen;
+}
+
+/* Call `delchunk` with the parameters and some defaults. Ensuring the table is copied correctly as well.
+ * This is done instead of `delchunk` being globally linked, because
+ * `delchunk` requests more specific parameters, which is confusing outside this module. */
+usize mcx_delchunk(u8 *restrict buf, int chunk)
+{
+	u32 table[TABLE];
+	memcpy(table, buf, sizeof(table));
+	usize res = delchunk(buf, table, 0, chunk, CHUNKS);
+	memcpy(buf, table, sizeof(table));
+	return res;
+}
+
+usize mcx_delchunk_range(u8 *restrict buf, int start, int end)
+{
+	assert(start < end && end < CHUNKS);
+	u32 table[TABLE];
+	memcpy(table, buf, sizeof(table));
+	u8 *dst = buf + (be32toh(table[start]) >> 8) * SECTOR;
+	u8 *src = buf + (be32toh(table[end]) >> 8) * SECTOR;
+	src += (be32toh(table[end]) & 0xFF) * SECTOR;
+
+	// zeroes-out the chunk data within this range. (and set the timestamp)
+	u32 ts = htobe32(time(NULL));
+	for (int i = start; i <= end; i++) {
+		table[i]          = 0;
+		table[i + CHUNKS] = ts;
+	}
+
+	// move the remaining chunks down
+	if (end < (CHUNKS - 1))
+		mvchunks(dst, src, table, end, (CHUNKS - 1));
+	memcpy(buf, table, sizeof(table));
+	return src - dst;
+}
+
+/* comparer function for to be inputted into `qsort` to compare two */
+static int cmp_chunkids(const void *restrict x, const void *restrict y)
+{
+	u16 x2 = *(u16 *)x;
+	u16 y2 = *(u16 *)y;
+	return (x2 > y2) - (x2 < y2);
+}
+
+/* Sorts the chunks marked for deletion from smallest to greatest index.
+ * Then performs the deletion in this order. Making sure to only update the chunks up to the next. */
+usize mcx_delchunk_bulk(u8 *restrict buf, const u16 *restrict chunks, int chunkc)
+{
+	// ensure the chunks ids we're working on are sorted from least to greatest
+	u16 chunkids[chunkc + 1];
+	memcpy(chunkids, chunks, chunkc);
+	qsort(chunkids, chunkc, sizeof(int), cmp_chunkids);
+	chunkids[chunkc] = CHUNKS; // set the spare chunk to the max chunks, so the rest of the chunks are moved
+
+	u32 table[TABLE];
+	memcpy(table, buf, sizeof(table));
+
+	usize rmb = 0;
+	for (int i = 0; i < chunkc; i++)
+		rmb += delchunk(buf, table, rmb, chunkids[i], chunkids[i + 1]);
+
+	memcpy(buf, table, sizeof(table));
+	return rmb;
+}
+
+/* Sum together the 4th byte in each location integer to compute the sector size of all chunks.
+ * Multiplying by `SECTOR`, and adding the size of the table itself. */
+usize mcx_calcsize(const u8 *restrict buf)
+{
+	usize size = 0;
+	for (uint i = 0; i < CHUNKS; i++)
+		size += *(buf + (i * 4) + 3);
+	return (size * SECTOR) + (TABLE * 4);
+}

src/dat/mcx.h

@@ -0,0 +1,38 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#pragma once
+
+#include <stdlib.h>
+
+#include "../types.h"
+#include "../util/atrb.h"
+
+/* contains chunk metadata */
+struct mcx_chunk {
+	usize idx;  // byte offset for start of chunk data
+	u32   len;  // byte length of chunk (+ padding)
+	u32   time; // modification time in epoch seconds
+};
+
+/* Deletes a single chunk (`chunk`) out of `buf`.
+ * The chunk's location data shall become `0`, and timestamp data the current time.
+ * All succeeding chunks shall be moved back, freeing space.
+ * Returns the amount of bytes removed. */
+usize mcx_delchunk(u8 *restrict buf, int chunk) NONNULL((1));
+
+/* Deletes the range defined by `start`—`end` (inclusive) of chunks out of `buf`.
+ * The chunk's location data shall become `0`, and timestamp data the current time.
+ * All succeeding chunks shall be moved back, freeing space.
+ * Returns the amount of bytes removed */
+usize mcx_delchunk_range(u8 *restrict buf, int start, int end) NONNULL((1));
+
+/* Deletes a `chunkc` chunks from `chunks` out of `buf`.
+ * If the `chunks` indices are known to be sequential, i.e. have a constant difference of `1`, `mcx_delchunk_range` should be preferred.
+ * The chunk's location data shall become `0`, and timestamp data the current time.
+ * All succeeding chunks shall be moved back, freeing space.
+ * Returns the amount of bytes removed */
+usize mcx_delchunk_bulk(u8 *restrict buf, const u16 *restrict chunks, int chunkc) NONNULL((1, 2));
+
+/* Computes the byte size of the `*.mcX` file in `buf` and returns it. */
+usize mcx_calcsize(const u8 *restrict buf) NONNULL((1)) PURE;

src/dat/nbt.c

@@ -0,0 +1,218 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#include "nbt.h"
+
+#include <assert.h>
+#include <endian.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../types.h"
+
+#define MAX_DEPTH 512
+
+/* Extracts a big endian 16 bit integer from address `buf`, converts it to host byte size if needed and returns. */
+static inline u16 buftoh16(const void *restrict buf)
+{
+	u16 i;
+	memcpy(&i, buf, sizeof(i));
+	return be16toh(i);
+}
+
+/* Extracts a big endian 32 bit integer from address `buf`, converts it to host byte size if needed and returns. */
+static inline u32 buftoh32(const void *restrict buf)
+{
+	u32 i;
+	memcpy(&i, buf, sizeof(i));
+	return be32toh(i);
+}
+
+/* Extracts a big endian 64 bit integer from address `buf`, converts it to host byte size if needed and returns. */
+static inline u64 buftoh64(const void *restrict buf)
+{
+	u64 i;
+	memcpy(&i, buf, sizeof(i));
+	return be64toh(i);
+}
+
+/* Processes the incoming array data in `buf`. Which contains `nmem` items of `size`.
+ * The data shall be converted to little-endian on little-endian systems
+ * Outputs the allocated data to `out`, returns where the next pointer would be. */
+static const u8 *procarr(const u8 *restrict buf, i32 nmemb, uint size, struct nbt_array *restrict out)
+{
+	usize len = nmemb * size;
+	*out      = (struct nbt_array){
+                out->nmemb = nmemb,
+                out->dat   = malloc(len),
+        };
+	if (!out->dat)
+		return buf + len;
+
+	memcpy(out->dat, buf, len);
+	buf += len;
+
+	/* Only include this code for little-endian systems. Since only they require this logic.
+	 * Producing optimised code for other platforms. */
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	if (size == 1)
+		return buf;
+	i32 i = 0;
+	while (i < nmemb) {
+		switch (size) {
+		case 2:  ((u16 *)out->dat)[i] = be16toh(((u16 *)out->dat)[i]); break;
+		case 4:  ((u32 *)out->dat)[i] = be16toh(((u32 *)out->dat)[i]); break;
+		case 8:  ((u64 *)out->dat)[i] = be16toh(((u64 *)out->dat)[i]); break;
+		default: __builtin_unreachable(); // this should be impossible
+		}
+		i += size;
+	}
+#endif
+	return buf;
+}
+
+/* calls `procarr` for the simple types available. */
+static const u8 *proclist(const u8 *restrict buf, struct nbt_array *restrict out)
+{
+	uint size;
+
+	switch (*(u8 *)buf) {
+	case NBT_I8:  size = 1; break;
+	case NBT_I16: size = 2; break;
+	case NBT_I32: // fall through
+	case NBT_F32: size = 4; break;
+	case NBT_I64: // fall though
+	case NBT_F64: size = 8; break;
+	default:      return NULL;
+	}
+
+	buf++;
+	i32 len;
+	memcpy(&len, buf, 4);
+	len = be32toh(len);
+	buf += 4;
+	return procarr(buf, len, size, out);
+}
+
+const u8 *nbt_proctag(const u8 *restrict buf, u16 slen, void *restrict out)
+{
+	const u8 *ptr, *tmp;
+	ptr = buf + 3 + slen;
+
+	i32  nmem;
+	uint size;
+
+	switch (*buf) {
+	case NBT_I8:  *(u8 *)out = *ptr; return ptr + 1;
+	case NBT_I16: *(u16 *)out = buftoh16(ptr); return ptr + 2;
+	case NBT_I32: // fall through
+	case NBT_F32: *(u32 *)out = buftoh32(ptr); return ptr + 4;
+	case NBT_I64: // fall through
+	case NBT_F64: *(u64 *)out = buftoh64(ptr); return ptr + 8;
+
+	case NBT_STR:     nmem = buftoh16(ptr), size = 1, ptr += 2; break;
+	case NBT_ARR_I8:  nmem = buftoh32(ptr), size = 1, ptr += 4; break;
+	case NBT_ARR_I32: nmem = buftoh32(ptr), size = 4, ptr += 4; break;
+	case NBT_ARR_I64: nmem = buftoh32(ptr), size = 8, ptr += 4; break;
+
+	case NBT_LIST:
+		return proclist(ptr, (struct nbt_array *)out);
+		return tmp;
+
+	default: return NULL;
+	}
+
+	return procarr(ptr, nmem, size, (struct nbt_array *)out);
+}
+
+
+/* handles incrementing to the next tag in the case of `NBT_LIST`. This function shan't return `NULL`.
+ * `ptr` is assumed to be the start of the `NBT_LIST` data, e.i. The list's ID, followed by the list's length.
+ * If `ID` is `NBT_I8`, `NBT_I16`, `NBT_I32`, `NBT_I64`, `NBT_F32`, or `NBT_F64`, the entire list length is computed and returned.
+ * For other types this won't be possible, and thus will add `1` to `dpt`, and write the list data to `lens` and `tags` at this new `dpt`. */
+static const u8 *nexttag_list(const u8 *restrict ptr, uint *restrict const dpt, i32 *restrict const lens, u8 *restrict const tags)
+{
+	const u8 *tag = ptr;
+	ptr++;
+	switch (*tag) {
+	case NBT_END: break;
+	case NBT_I8:  ptr += (i32)buftoh32(ptr) * 1; break;
+	case NBT_I16: ptr += (i32)buftoh32(ptr) * 2; break;
+	case NBT_I32: // fall through
+	case NBT_F32: ptr += (i32)buftoh32(ptr) * 4; break;
+	case NBT_I64: // fall through
+	case NBT_F64: ptr += (i32)buftoh32(ptr) * 8; break;
+	default:
+		// TODO: handle out of bounds... Might not be required if we use flexible array member
+		(*dpt)++;
+		tags[*dpt] = *tag;
+		lens[*dpt] = (i32)buftoh32(ptr);
+		break;
+	}
+	ptr += 4;
+	return ptr;
+}
+
+/* increments to the next tag and returns it (or `NULL`)
+ * - `tag` represents the start of the tag, e.i. The tag ID, or in the case of `NBT_LIST` data, the start of this data.
+ * - `dpt` shall point to the "depth" we're at, this is used as index for `lens` and `tags`
+ * - `lens` shall contain `MAX_DEPTH` of items representing the list length, if the current item is non-zero we shall assume we're in a list.
+ *     Where the value is decremented until we reach `0`.
+ * - `tags` shall contain `MAX_DEPTH` of items representing the list's stored type. */
+static const u8 *nexttag(const u8 *restrict tag, uint *restrict const dpt, i32 *restrict const lens, u8 *restrict const tags)
+{
+	u8        type;
+	const u8 *ptr = tag;
+	if (lens[*dpt]) {
+		type = tags[*dpt];
+		lens[*dpt]--;
+		*dpt -= !lens[*dpt];
+	} else {
+		type = *tag;
+		ptr += buftoh16(tag + 1) + 3;
+	}
+
+	switch (type) {
+	case NBT_I8:  ptr += 1; break;
+	case NBT_I16: ptr += 2; break;
+	case NBT_I32: // fall through
+	case NBT_F32: ptr += 4; break;
+	case NBT_I64: // fall through
+	case NBT_F64: ptr += 8; break;
+
+	case NBT_ARR_I8:  ptr += 4 + (i32)buftoh32(ptr) * 1; break;
+	case NBT_ARR_I32: ptr += 4 + (i32)buftoh32(ptr) * 4; break;
+	case NBT_ARR_I64: ptr += 4 + (i32)buftoh32(ptr) * 8; break;
+	case NBT_STR:     ptr += 2 + (u16)buftoh16(ptr) * 1; break;
+
+	case NBT_END:      (*dpt)--; break;
+	case NBT_COMPOUND: (*dpt)++; break;
+
+	case NBT_LIST: ptr = nexttag_list(ptr, dpt, lens, tags); break;
+
+	default: return NULL; // unexpected value; buffer is likely corrupt
+	}
+
+	return ptr;
+}
+
+/* TODO: write test cases for this function:
+ * - list:compound...
+ * - non-existent type
+ * - compound:list:int32
+ * - string
+ */
+const u8 *nbt_nexttag(const u8 *restrict buf)
+{
+	const u8 *tag;
+	u8        tags[MAX_DEPTH] = {0};
+	i32       lens[MAX_DEPTH] = {0};
+	uint      dpt             = 0;
+
+	tag = buf;
+	do {
+		tag = nexttag(tag, &dpt, lens, tags);
+	} while (dpt > 0);
+	return tag;
+}

src/dat/nbt.h

@@ -0,0 +1,57 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#pragma once
+
+#include <assert.h>
+#include <endian.h>
+#include <stdbool.h>
+#include <stdlib.h>
+
+#include "../types.h"
+#include "../util/atrb.h"
+
+/* NBT (named binary tag) is a tree data structure. Tags have a numeric type ID, name and a payload.
+ * NBT files are a compressed `compound` tag. GZip is the compression used in most cases,
+ * in some (rare) cases it's stored uncompressed.
+ * A tag is an individual part of the data tree.
+ * The first byte is the ID, followed by a `u16`, for the length of the name.
+ * Then the name as `UTF-8`. (end tag does not contain name) */
+
+
+/* specifies the NBT tag IDs.
+ * NOTE: every type is stored as BE (big-endian) in the file. */
+enum nbt_tagid {
+	NBT_END      = 0x00, // signifies the end of a compound tag
+	NBT_I8       = 0x01, // next byte is for an 8 bit signed integer.
+	NBT_I16      = 0x02, // next 2 bytes are for a 16 bit signed integer
+	NBT_I32      = 0x03, // next 4 bytes are for a 32 bit signed integer
+	NBT_I64      = 0x04, // next 8 bytes are for a 64 bit signed integer
+	NBT_F32      = 0x05, // next 4 bytes are for a single-precision floating-point
+	NBT_F64      = 0x06, // next 8 bytes are for a double-precision floating-point
+	NBT_ARR_I8   = 0x07, // starts with a i32, denoting size, followed by the i8 data
+	NBT_STR      = 0x08, // starts with a u16, denoting size, followed by the UTF-8 data
+	NBT_LIST     = 0x09, // starts with an ID, followed by a 32 bit signed integer denoting the size
+	NBT_COMPOUND = 0x0A, // compound tag, contains tags and is delimited by `NBT_END`
+	NBT_ARR_I32  = 0x0B, // starts with a i32, denoting size, followed by the i32 data
+	NBT_ARR_I64  = 0x0C, // starts with a i32, denoting size, followed by the u32 data
+};
+
+struct nbt_array {
+	i32   nmemb;
+	void *dat;
+};
+
+
+/* Acquires the data contained by the named tag.
+ * - `buf` points to the start of the tag.
+ * - `slen` contains the string length of the name.
+ * - `out` points to where the data should be written.
+ * if `buf` points to `NBT_I8`, `NBT_I16`, `NBT_I32`, `NBT_I64`, `NBT_F32`, or `NBT_F64`, `*out` is assumed
+ * to have the available byte width for one of these types. In the case of `NBT_ARR*` and `NBT_LIST`
+ * it must point to a `struct nbt_array*`. Where in the case of `NBT_LIST`, it must be one of the previous static-width types. */
+const u8 *nbt_proctag(const u8 *restrict buf, u16 slen, void *restrict out) NONNULL((1, 3));
+
+/* searches for the end of a named tag without processing data, the final pointer is returned.
+ * `NULL` is returned upon failure, the otherwise returned pointer is not guaranteed to be valid. */
+const u8 *nbt_nexttag(const u8 *restrict buf) NONNULL((1)) PURE;

src/error.h

@@ -1,21 +0,0 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#pragma once
-
-#if __INCLUDE_LEVEL__ > 0
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "util/macro.h"
-#endif
-
-#define debug(s, ...) printf("\033[95m" __FILE__ ":" MACRO_STR2(__LINE__) ": [DBG]: " s "\033[0m\n", ##__VA_ARGS__)
-#define info(s, ...)  printf(__FILE__ ":" MACRO_STR2(__LINE__) ": [INF]: " s "\n", ##__VA_ARGS__)
-#define warn(s, ...)  fprintf(stderr, "\033[93m" __FILE__ ":" MACRO_STR2(__LINE__) ": [WAR]: " s "\033[0m\n", ##__VA_ARGS__)
-#define error(s, ...) fprintf(stderr, "\033[91m" __FILE__ ":" MACRO_STR2(__LINE__) ": [ERR]: " s "\033[0m\n", ##__VA_ARGS__)
-
-#define fatal(s, ...)                                                                                           \
-	do {                                                                                                    \
-		printf("\033[101m" __FILE__ ":" MACRO_STR2(__LINE__) ": [FAT]: " s "\033[0m\n", ##__VA_ARGS__); \
-		exit(1);                                                                                        \
-	} while (0)

src/io/conf.c

@@ -0,0 +1,35 @@
+#include "conf.h"
+
+#include <string.h>
+
+#include "../types.h"
+#include "../util/atrb.h"
+
+/* Matches s1 with s2, returns a pointer to s1 where the match stopped. */
+static const char *strmat(const char *s1, const char *s2) PURE NONNULL((1, 2));
+static const char *strmat(const char *s1, const char *s2)
+{
+	while ((*s1 == *s2) & !!*s1)
+		s1++, s2++;
+	return s1;
+}
+
+int conf_getkeyval(const char *restrict buf, const char *const restrict *restrict keys, int klen, const char *restrict *restrict out)
+{
+	const char *tmp = NULL;
+
+	ASSUME((klen > 0));
+	int i = 0;
+	for (; i < klen && !tmp; i++) {
+		tmp = strmat(buf, keys[i]);
+		tmp = keys[i][buf - tmp] ? tmp : 0;
+	}
+
+	if (!tmp || *tmp != '=')
+		return -1;
+
+	*out = tmp + 1;
+	return i;
+}
+
+int conf_val(int);

src/io/conf.h

@@ -0,0 +1,12 @@
+#pragma once
+#include "../types.h"
+#include "../util/atrb.h"
+
+/* Gets the key and value, if present. Writes the pointer for the value to `out`.
+ * Returns the key index, or <0 upon failure. */
+int conf_getkeyval(const char *restrict buf, const char *const restrict *restrict keys, int klen,
+	const char *restrict *restrict out) NONNULL((1, 2, 4));
+
+/* Processes the value of `type` in `val`. Outputs to `out`.
+ * Returns non-zero on failure. */
+int conf_procval(u8 type, const char *restrict val, void *restrict out) NONNULL((2, 3));

src/io/input.h

@@ -1,7 +0,0 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#pragma once
-
-#include <GLFW/glfw3.h>
-
-void key_callback(GLFWwindow* win, int key, int scancode, int action, int mods);

src/io/render.h

@@ -1,10 +0,0 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#pragma once
-
-#include <glad/gl.h>
-
-#include <GLFW/glfw3.h>
-
-int render_init(void);
-void render_update(GLFWwindow* win);

src/io/shader.c

@@ -1,59 +0,0 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#include "shader.h"
-
-#include <stddef.h>
-#include <stdint.h>
-#include <stdio.h>
-
-#include "../error.h"
-
-#define NAM_S(name) _binary_res_##name##_start // name of a start variable
-#define NAM_E(name) _binary_res_##name##_end   // name of an end variable
-
-// macro for generating the variable declarations
-#define DEF_GLSL(name)               \
-	extern char const NAM_S(name)[]; \
-	extern char const NAM_E(name)[]
-
-// NOTE: we are currently just sucking up the memory costs for ease. We can either include the source files themselves. Or use compression, where I'd prefer the latter for ease of installation.
-// NOLINTBEGIN (bugprone-reserved-identifier)
-DEF_GLSL(sh_vert_glsl);
-DEF_GLSL(sh_frag_glsl);
-DEF_GLSL(sh_geom_glsl);
-// NOLINTEND
-
-/* compile a shader */
-static GLuint shader_compile(GLenum type, char const* src, size_t len) {
-	int ilen = len;
-	GLuint shader = glCreateShader(type);
-	glShaderSource(shader, 1, &src, &ilen);
-	glCompileShader(shader);
-
-	// repurposing ilen for the max length of the shader log
-	glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &ilen);
-	if (ilen > 0) {
-		char log[ilen];
-		glGetShaderInfoLog(shader, ilen, &ilen, log);
-		log[ilen - 1] = '\0'; // terminate the string one character sooner since the log includes a newline
-		error("error whilst compiling shader type '0X%X': '%s'", type, log);
-	}
-
-	return shader;
-}
-
-#define COMPILE_NAME(_type, _name) shader_compile(_type, NAM_S(_name), (uintptr_t)NAM_E(_name) - (uintptr_t)NAM_S(_name))
-int shader_init(GLuint pipe) {
-	GLuint vs = COMPILE_NAME(GL_VERTEX_SHADER, sh_vert_glsl);
-	GLuint fs = COMPILE_NAME(GL_FRAGMENT_SHADER, sh_frag_glsl);
-	GLuint gs = COMPILE_NAME(GL_GEOMETRY_SHADER, sh_geom_glsl);
-
-	glAttachShader(pipe, vs);
-	glAttachShader(pipe, fs);
-	glAttachShader(pipe, gs);
-
-	glDeleteShader(vs);
-	glDeleteShader(fs);
-	glDeleteShader(gs);
-	return 1;
-}

src/io/shader.h

@@ -1,10 +0,0 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#pragma once
-
-#include <glad/gl.h>
-
-#include <stddef.h>
-#include <stdint.h>
-
-int shader_init(GLuint pipe);

src/io/win/input.c

@@ -1,10 +1,12 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
 #include "input.h"
 
 #include <GLFW/glfw3.h>
 
-void key_callback(GLFWwindow* win, int key, int scancode, int action, int mods) {
+void input_callback(GLFWwindow *win, int key, int scancode, int action, int mods)
+{
 	(void)win, (void)key, (void)scancode, (void)action, (void)mods; // make the compiler shut up as this is fine
 #ifndef NDEBUG
 	if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)

src/io/win/input.h

@@ -0,0 +1,10 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#pragma once
+
+#include <GLFW/glfw3.h>
+
+/* Handles incoming key inputs for `win`.
+ * Intended to be given as an argument to `glfwSetKeyCallback`. */
+void input_callback(GLFWwindow *win, int key, int scancode, int action, int mods);

src/io/win/render.c

@@ -1,14 +1,14 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
 #include "render.h"
 
-#include <glad/gl.h>
-
 #include <GLFW/glfw3.h>
+#include <glad/gl.h>
 #include <stdint.h>
 
-#include "../error.h"
-#include "../util/types.h"
+#include "../../types.h"
+#include "../../util/error.h"
 #include "shader.h"
 
 #define VERTC 3
@@ -16,9 +16,10 @@ static GLuint pipe;
 static GLuint vbo;        // vertex buffer object
 static GLuint vao;        // vertex array object
 static GLuint screen_loc; // location to where OpenGL sends to the shaders of the screen dimensions
-static int win_w, win_h;
+static int    win_w, win_h;
 
-static void screen_resize(int w, int h) {
+static void screen_resize(int w, int h)
+{
 	i32 verts[VERTC][4] = {
 		{0, 0,  w, 20    },
 		{0, 20, w, h - 40},
@@ -32,7 +33,8 @@ static void screen_resize(int w, int h) {
 	win_h = h;
 }
 
-int render_init(void) {
+int render_init(void)
+{
 	pipe = glCreateProgram();
 	shader_init(pipe);       // initialise and include the shaders
 	glLinkProgram(pipe);     // link the application
@@ -64,7 +66,8 @@ int render_init(void) {
 	return 0;
 }
 
-void render_update(GLFWwindow *win) {
+void render_update(GLFWwindow *win)
+{
 	glDisable(GL_DEPTH_TEST);
 	glDisable(GL_CULL_FACE);
 
@@ -80,3 +83,13 @@ void render_update(GLFWwindow *win) {
 	glBindVertexArray(vao);
 	glDrawArrays(GL_POINTS, 0, VERTC);
 }
+
+void render_free(void)
+{
+	glDeleteVertexArrays(1, &vao);
+	glDeleteBuffers(1, &vbo);
+	glDeleteProgram(pipe);
+	vbo  = 0;
+	vao  = 0;
+	pipe = 0;
+}

src/io/win/render.h

@@ -0,0 +1,11 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#pragma once
+
+#include <GLFW/glfw3.h>
+#include <glad/gl.h>
+
+int  render_init(void);
+void render_update(GLFWwindow *win);
+void render_free(void);

src/io/win/shader.c

@@ -0,0 +1,57 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#include "shader.h"
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#include "../../util/error.h"
+
+
+// NOTE: we are currently just sucking up the memory costs for ease. We can either include the source files themselves. Or use compression, where I'd prefer the latter for ease of installation.
+extern const char sh_vert_glsl[];
+extern const char sh_frag_glsl[];
+extern const char sh_geom_glsl[];
+extern const uint sh_vert_glsl_len;
+extern const uint sh_frag_glsl_len;
+extern const uint sh_geom_glsl_len;
+
+/* Compiles a shader of `type` from `src` with `len` bytes.
+ * Returns the integer for the shader. */
+static GLuint shader_compile(GLenum type, const char *src, usize len)
+{
+	int    ilen   = len;
+	GLuint shader = glCreateShader(type);
+	glShaderSource(shader, 1, &src, &ilen);
+	glCompileShader(shader);
+
+	// repurposing ilen for the max length of the shader log
+	glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &ilen);
+	if (ilen > 0) {
+		char log[ilen];
+		glGetShaderInfoLog(shader, ilen, &ilen, log);
+		log[ilen - 1] = '\0'; // terminate the string one character sooner since the log includes a newline
+		error("error whilst compiling shader type '0x%X': '%s'", type, log);
+	}
+
+	return shader;
+}
+
+int shader_init(GLuint pipe)
+{
+	GLuint vs = shader_compile(GL_VERTEX_SHADER, sh_vert_glsl, sh_vert_glsl_len);
+	GLuint fs = shader_compile(GL_FRAGMENT_SHADER, sh_frag_glsl, sh_frag_glsl_len);
+	GLuint gs = shader_compile(GL_GEOMETRY_SHADER, sh_geom_glsl, sh_geom_glsl_len);
+
+	glAttachShader(pipe, vs);
+	glAttachShader(pipe, fs);
+	glAttachShader(pipe, gs);
+
+	// mark shaders off for deletion
+	glDeleteShader(vs);
+	glDeleteShader(fs);
+	glDeleteShader(gs);
+	return 1;
+}

src/io/win/shader.h

@@ -0,0 +1,11 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#pragma once
+
+#include <glad/gl.h>
+#include <stddef.h>
+#include <stdint.h>
+
+/* Initialises the (embedded) shaders onto `pipe` */
+int shader_init(GLuint pipe);

src/io/win/window.c

@@ -0,0 +1,89 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#include "window.h"
+
+#include <GLFW/glfw3.h>
+#include <assert.h>
+#include <glad/gl.h>
+
+#include "../../types.h"
+#include "../../util/error.h"
+#include "input.h"
+#include "render.h"
+
+static struct GLFWwindow *win = NULL;
+
+/* Initialises the GLFW window with some defaults,
+ * then proceed to activate OpenGL on it. */
+int window_init(void)
+{
+	// initialise the window
+#ifndef NDEBUG
+	glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE);
+#endif
+	glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE);
+	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
+	glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+	glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, 1);
+	glfwWindowHint(GLFW_RED_BITS, 8);
+	glfwWindowHint(GLFW_GREEN_BITS, 8);
+	glfwWindowHint(GLFW_BLUE_BITS, 8);
+	glfwWindowHint(GLFW_ALPHA_BITS, 0);
+	/* NOTE: on my system; x86_64, GTX 1650 580.82.09-2, X11, i3, this causes one direct, 2 indirect memory leaks.
+	 * This is not my fault, and can safely be ignored. */
+	win = glfwCreateWindow(640, 480, "MCA-Selector lite", NULL, NULL);
+	if (!win)
+		return 1;
+
+	glfwMakeContextCurrent(win);
+	if (!gladLoadGL(glfwGetProcAddress))
+		return 1;
+	glfwSwapInterval(1); // wait 1 screen update for a redraw a.k.a. "vsync". (not really applicable in this case but eh)
+
+	glfwSetKeyCallback(win, input_callback);
+
+	debug(
+		"version info:\n"
+		"\tvendor:       %s\n"
+		"\trenderer:     %s\n"
+		"\tversion:      %s\n"
+		"\tshading lang: %s\n",
+		glGetString(GL_VENDOR),
+		glGetString(GL_RENDERER),
+		glGetString(GL_VERSION),
+		glGetString(GL_SHADING_LANGUAGE_VERSION));
+	return 0;
+}
+
+void window_loop(void)
+{
+	assert(win);
+	render_init();
+	while (!glfwWindowShouldClose(win)) {
+		glfwWaitEvents();
+
+		render_update(win);
+		glfwSwapBuffers(win);
+		glfwPollEvents();
+	}
+}
+
+void window_close(void)
+{
+	assert(win);
+	glfwSetWindowShouldClose(win, 1);
+}
+
+void window_free(void)
+{
+	if (!win) {
+		debug("window has already been freed.");
+		return;
+	}
+
+	glfwDestroyWindow(win);
+	render_free();
+	win = NULL;
+}

src/io/win/window.h

@@ -0,0 +1,20 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#pragma once
+
+/* Set up the window, enabling OpenGL, and
+ * configuring the settings that are needed.
+ * Returns `0` upon success, otherwise `1`. */
+int window_init(void);
+
+/* Calls the update loop for the window.
+ * This function does not exit until the window does. */
+void window_loop(void);
+
+/* Requests the window to close (gracefully). */
+void window_close(void);
+
+/* Cleans up all resources held by the window.
+ * If the window is still open, it will be terminated. */
+void window_free(void);

src/io/window.c

@@ -1,74 +0,0 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#include "window.h"
-
-#include <glad/gl.h>
-
-#include <GLFW/glfw3.h>
-#include <assert.h>
-
-#include "../error.h"
-#include "input.h"
-#include "render.h"
-
-// macros for ease of access
-#define WIN_NAME           "MCA Selector Lite"
-#define WIN_DEFAULT_WIDTH  640
-#define WIN_DEFAULT_HEIGHT 480
-
-static GLFWwindow* win = NULL;
-
-int window_init(void) {
-#ifndef NDEBUG
-	glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE);
-#endif
-
-	// initialize the window
-	glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE);
-	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
-	glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); // sets the profile to "core", so old, deprecated functions are disabled.
-	glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GLFW_TRUE);
-	glfwWindowHint(GLFW_RED_BITS, 8);
-	glfwWindowHint(GLFW_GREEN_BITS, 8);
-	glfwWindowHint(GLFW_BLUE_BITS, 8);
-	glfwWindowHint(GLFW_ALPHA_BITS, 0);
-	win = glfwCreateWindow(WIN_DEFAULT_WIDTH, WIN_DEFAULT_HEIGHT, WIN_NAME, NULL, NULL);
-	if (!win) return 1;
-
-	// setup OpenGL for the window
-	glfwMakeContextCurrent(win);
-	if (!gladLoadGL(glfwGetProcAddress)) return 1;
-	glfwSwapInterval(1); // wait 1 screen update for a redraw a.k.a. "vsync". (not really applicable in this case but eh)
-
-	// configure callbacks
-	glfwSetKeyCallback(win, key_callback);
-
-	// print the OpenGL version information
-	debug(
-		"version info:\n"
-		"\tvendor:       %s\n"
-		"\trenderer:     %s\n"
-		"\tversion:      %s\n"
-		"\tshading lang: %s\n",
-		glGetString(GL_VENDOR),
-		glGetString(GL_RENDERER),
-		glGetString(GL_VERSION),
-		glGetString(GL_SHADING_LANGUAGE_VERSION));
-
-	return 0;
-}
-
-void window_loop(void) {
-	assert(win != NULL);
-
-	render_init();
-	while (!glfwWindowShouldClose(win)) {
-		glfwWaitEvents(); // wait till an update has been given
-
-		render_update(win);
-		glfwSwapBuffers(win);
-	}
-
-	glfwDestroyWindow(win);
-}

src/io/window.h

@@ -1,6 +0,0 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#pragma once
-
-int window_init(void);  // initializes the global window, returns non-zero upon failure
-void window_loop(void); // performs the window updates

src/main.c

@@ -1,48 +1,45 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#define GLAD_GL_IMPLEMENTATION
-#include <glad/gl.h>
-#undef GLAD_GL_IMPLEMENTATION
-
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
 #include <GLFW/glfw3.h>
+#include <glad/gl.h>
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "error.h"
-#include "io/window.h"
+#include "io/win/window.h"
+#include "util/error.h"
 
-
-#define WIN_NAME           "MCA Selector Lite"
-#define WIN_DEFAULT_WIDTH  640
-#define WIN_DEFAULT_HEIGHT 480
-
-// callback for GLFW errors
-static void error_callback(int err, char const *const msg) {
-	fprintf(stderr, "\033[91mE: glfw returned (%i); \"%s\"\033[0m\n", err, msg);
+/* reroutes GLFW errors to our logging system. */
+static void error_callback(int err, const char *const msg)
+{
+	error("glfw returned (%i); \"%s\"", err, msg);
 }
 
-static inline int init(void) {
-	glfwSetErrorCallback(error_callback);
-	glfwInitHint(GLFW_JOYSTICK_HAT_BUTTONS, GLFW_FALSE); // disable joystick buttons
+static void quit(void)
+{
+	window_free();
 
-	if (!glfwInit()) return 1; // initialize GLFW
-	if (window_init()) return 1;
-
-	return 0;
-}
-
-static inline void quit(void) {
+	/* terminates GLFW; destroying any
+	 * remaining windows, or other resources held by GLFW. */
 	glfwTerminate();
 }
 
-int main(int argc, char **argv) {
+
+/* Entry-point of the application. */
+int main(int argc, char **argv)
+{
 	(void)argc, (void)argv;
 	printf("debug: [DBG], info: [INF], warning: [WAR], error: [ERR], fatal: [FAT]\n");
-	if (init()) fatal("failed to initialize!");
+	atexit(quit);
+
+	glfwSetErrorCallback(error_callback);
+	glfwInitHint(GLFW_JOYSTICK_HAT_BUTTONS, GLFW_FALSE); // disable joystick buttons; since we won't need them
+	if (!glfwInit() || window_init())
+		fatal("failed to initialise!");
 
 	window_loop();
-	quit();
 
-	// return success, since some architectures do not follow 0=success
+	/* return success, since some architectures do not follow 0=success
+	 * This action will call `quit`. */
 	return EXIT_SUCCESS;
 }

src/types.h

@@ -0,0 +1,36 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#pragma once
+
+typedef signed long long int llong;
+typedef unsigned short int   ushort;
+typedef unsigned int         uint;
+typedef unsigned long        ulong;
+typedef unsigned long long   ullong;
+typedef __INT8_TYPE__        i8;
+typedef __INT16_TYPE__       i16;
+typedef __INT32_TYPE__       i32;
+typedef __INT64_TYPE__       i64;
+typedef __UINT8_TYPE__       u8;
+typedef __UINT16_TYPE__      u16;
+typedef __UINT32_TYPE__      u32;
+typedef __UINT64_TYPE__      u64;
+typedef __SIZE_TYPE__        usize;
+typedef __INTPTR_TYPE__      intptr;
+typedef __UINTPTR_TYPE__     uintptr;
+
+#if __SIZEOF_SIZE_T__ == __SIZEOF_LONG_LONG__
+typedef llong ssize;
+#elif __SIZEOF_SIZE_T__ == __SIZEOF_LONG__
+typedef long ssize;
+#elif __SIZEOF_SIZE_T__ == __SIZEOF_INT__
+typedef int ssize;
+#endif
+
+#if __SIZEOF_FLOAT__ == 4
+typedef float f32;
+#endif
+#if __SIZEOF_DOUBLE__ == 8
+typedef double f64;
+#endif

src/util/atrb.h

@@ -1,30 +1,64 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
 #pragma once
 
-// define the attributes where possible
-#if defined(__GNUC__) || defined(__clang__)
-#define atrb(...)         __attribute__(__VA_ARGS__)
-#define atrb_deprecated   __attribute__((depricated))
-#define atrb_unused       __attribute__((unused))
-#define atrb_pure         __attribute__((pure))
-#define atrb_const        __attribute__((const))
-#define atrb_noreturn     __attribute__((noreturn))
-#define atrb_malloc       __attribute__((malloc))
-#define atrb_format(...)  __attribute__((format(__VA_ARGS__)))
-#define atrb_nonnull(...) __attribute__((nonnull(__VA_ARGS__)))
-#elif defined(_MSC_VER)
-#define atrb            __declspec
-#define atrb_deprecated __declspec(deprecated)
-#define atrb_noreturn   __declspec(noreturn)
+#if defined(__GNUC__)
+#if __has_attribute(__pure__)
+#define PURE __attribute__((__pure__))
 #else
-#define atrb
-#define atrb_deprecated
-#define atrb_unused
-#define atrb_pure
-#define atrb_const
-#define atrb_noreturn
-#define atrb_malloc
-#define atrb_format()
-#define atrb_nonnull()
+#define PURE
+#endif
+
+#if __has_attribute(__const__)
+#define CONST __attribute__((__const__))
+#else
+#define CONST
+#endif
+
+#if __has_attribute(__noreturn__)
+#define NORET __attribute__((__noreturn__))
+#else
+#define NORET
+#endif
+
+#if __has_attribute(__malloc__)
+#define MALLOC __attribute__((__malloc__))
+#else
+#define MALLOC
+#endif
+
+#if __has_attribute(__used__)
+#define USED __attribute__((__used__))
+#else
+#define USED
+#endif
+
+#if __has_attribute(__unused__)
+#define UNUSED __attribute__((__unused__))
+#else
+#define UNUSED
+#endif
+
+#if __has_attribute(__deprecated__)
+#define DEPRECATED __attribute__((__deprecated__))
+#else
+#define DEPRECATED
+#endif
+
+#if __has_attribute(__format__)
+#define FORMAT(args) __attribute__((format args))
+#else
+#define FORMAT(args)
+#endif
+
+#if __has_attribute(__nonnull__)
+#define NONNULL(args) __attribute__((__nonnull__ args))
+#else
+#define NONNULL(args)
+#endif
+
+#if __has_attribute(__assume__)
+#define ASSUME(args) __attribute__((__assume__ args))
+#endif
 #endif

src/util/colour32.h

@@ -1,44 +0,0 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#pragma once
-#include <stdint.h>
-
-#include "types.h"
-
-// stores colour in a rgba format stored as little-endian, each channel being a 8 bits wide.
-typedef union colour32 {
-	u32 dat; // full colour data; little-endian
-#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
-	// colour channel information for little-endian systems
-	struct {
-		u8 a, b, g, r;
-	} ch;
-#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
-	// colour channel information for big-endian systems
-	struct {
-		u8 r, g, b, a;
-	} ch;
-#endif
-} colour32;
-
-#define COLOUR32_BLACK   ((colour32){0x000000FF})
-#define COLOUR32_RED     ((colour32){0xFF0000FF})
-#define COLOUR32_YELLOW  ((colour32){0xFFFF00FF})
-#define COLOUR32_ORANGE  ((colour32){0xFF6D00FF})
-#define COLOUR32_GREEN   ((colour32){0x00FF00FF})
-#define COLOUR32_CYAN    ((colour32){0x00FFFFFF})
-#define COLOUR32_BLUE    ((colour32){0x0000FFFF})
-#define COLOUR32_MAGENTA ((colour32){0xFF00FFFF})
-#define COLOUR32_WHITE   ((colour32){0xFFFFFFFF})
-
-// american macros:
-#define color32         colour32
-#define COLOR32_BLACK   COLOUR32_BLACK
-#define COLOR32_RED     COLOUR32_RED
-#define COLOR32_YELLOW  COLOUR32_YELLOW
-#define COLOR32_ORANGE  COLOUR32_ORANGE
-#define COLOR32_GREEN   COLOUR32_GREEN
-#define COLOR32_CYAN    COLOUR32_CYAN
-#define COLOR32_BLUE    COLOUR32_BLUE
-#define COLOR32_MAGENTA COLOUR32_MAGENTA
-#define COLOR32_WHITE   COLOUR32_WHITE

src/util/compat/bswap.h

@@ -1,44 +0,0 @@
-#pragma once
-
-#include "../types.h"
-
-#if defined(__GNUC__) || defined(__clang__)
-#define bswap16 __builtin_bswap16
-#define bswap32 __builtin_bswap32
-#define bswap64 __builtin_bswap64
-#elif __has_include(<byteswap.h>)
-#include <byteswap.h>
-#define bswap16 bswap_16
-#define bswap32 bswap_32
-#define bswap64 bswap_64
-#else
-#define bswap16 bswap16_impl
-#define bswap32 bswap32_impl
-#define bswap64 bswap64_impl
-#define IMPL_BSWAP
-#endif
-
-#if defined(IMPL_BSWAP) || !defined(NDEBUG)
-static inline u16 bswap16_impl(u16 x) {
-	return (x << 8) | (x >> 8);
-}
-
-static inline u32 bswap32_impl(u32 x) {
-	return (x << 24) |
-		((0x0000FF00U & x) << 8) |
-		((0x00FF0000U & x) >> 8) |
-		(x >> 24);
-}
-
-static inline u64 bswap64_impl(u64 x) {
-	return (x << 56) |
-		((0x000000000000FF00ULL & x) << 40) |
-		((0x0000000000FF0000ULL & x) << 24) |
-		((0x00000000FF000000ULL & x) << 8) |
-		((0x000000FF00000000ULL & x) >> 8) |
-		((0x0000FF0000000000ULL & x) >> 24) |
-		((0x00FF000000000000ULL & x) >> 40) |
-		(x >> 56);
-}
-#endif
-#undef IMPL_BSWAP

src/util/compat/endian.h

@@ -1,55 +0,0 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#pragma once
-
-#include <stdint.h>
-
-#include "../atrb.h"
-#include "../types.h"
-#include "bswap.h"
-
-/* little endian */
-atrb_const static inline u16 le16ton(u16); // converts little-endian (LE) encoding to native for a 16 bit integer. (NOOP if native is LE)
-atrb_const static inline u32 le32ton(u32); // converts little-endian (LE) encoding to native for a 32 bit integer. (NOOP if native is LE)
-atrb_const static inline u64 le64ton(u64); // converts little-endian (LE) encoding to native for a 64 bit integer. (NOOP if native is LE)
-atrb_const static inline u16 ntole16(u16); // converts native encoding to little-endian (LE) for a 16 bit integer. (NOOP if native is LE)
-atrb_const static inline u32 ntole32(u32); // converts native encoding to little-endian (LE) for a 32 bit integer. (NOOP if native is LE)
-atrb_const static inline u64 ntole64(u64); // converts native encoding to little-endian (LE) for a 64 bit integer. (NOOP if native is LE)
-
-/* big endian */
-atrb_const static inline u16 be16ton(u16); // converts big-endian (BE) encoding to native for a 16 bit integer. (NOOP if native is BE)
-atrb_const static inline u32 be32ton(u32); // converts big-endian (BE) encoding to native for a 32 bit integer. (NOOP if native is BE)
-atrb_const static inline u64 be64ton(u64); // converts big-endian (BE) encoding to native for a 64 bit integer. (NOOP if native is BE)
-atrb_const static inline u16 ntobe16(u16); // converts native encoding to big-endian (BE) for a 16 bit integer. (NOOP if native is BE)
-atrb_const static inline u32 ntobe32(u32); // converts native encoding to big-endian (BE) for a 32 bit integer. (NOOP if native is BE)
-atrb_const static inline u64 ntobe64(u64); // converts native encoding to big-endian (BE) for a 64 bit integer. (NOOP if native is BE)
-
-#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
-u16 le16ton(u16 x) { return x; }
-u32 le32ton(u32 x) { return x; }
-u64 le64ton(u64 x) { return x; }
-u16 ntole16(u16 x) { return x; }
-u32 ntole32(u32 x) { return x; }
-u64 ntole64(u64 x) { return x; }
-u16 be16ton(u16 x) { return bswap16(x); }
-u32 be32ton(u32 x) { return bswap32(x); }
-u64 be64ton(u64 x) { return bswap64(x); }
-u16 ntobe16(u16 x) { return bswap16(x); }
-u32 ntobe32(u32 x) { return bswap32(x); }
-u64 ntobe64(u64 x) { return bswap64(x); }
-#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
-u16 le16ton(u16 x) { bswap_16(x); }
-u32 le32ton(u32 x) { bswap_32(x); }
-u64 le64ton(u64 x) { bswap_64(x); }
-u16 ntole16(u16 x) { bswap_16(x); }
-u32 ntole32(u32 x) { bswap_32(x); }
-u64 ntole64(u64 x) { bswap_64(x); }
-u16 be16ton(u16 x) { return x; }
-u32 be32ton(u32 x) { return x; }
-u64 be64ton(u64 x) { return x; }
-u16 ntobe16(u16 x) { return x; }
-u32 ntobe32(u32 x) { return x; }
-u64 ntobe64(u64 x) { return x; }
-#else
-#error machine architecture unsupported! Expected either big-endian or little-endian, make sure to use a compiler which defines __BYTE_ORDER__ (like clang or gcc)
-#endif

src/util/compat/io.h

@@ -1,5 +1,6 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
 #pragma once
 
 #if defined __unix__
@@ -13,7 +14,7 @@
 
 /* tests a files access with F_OK, X_OK, R_OK, W_OK OR'd together
    returns 0 upon success. -1 when errno is set and anything else when one or more of the permissions isn't set */
-static inline int faccess(char const *restrict fname, int perms);
+static inline int faccess(const char *restrict fname, int perms);
 
 // define the constants if they haven't been
 #ifndef F_OK
@@ -33,14 +34,16 @@ static inline int faccess(char const *restrict fname, int perms);
 #define PATH_SEP     '/' // contains the path separator as a character. Yes it is extremely annoying that this has to exist.
 #define PATH_SEP_STR "/" // contains the path separator as a string, useful for concatenation. Yes it is extremely annoying that this has to exist.
 
-int faccess(char const *restrict fname, int perms) {
+int faccess(char const *restrict fname, int perms)
+{
 	return access(fname, perms);
 }
 #elif defined(_WIN32)
 #define PATH_SEP     '\\' // contains the path separator as a character. Yes it is extremely annoying that this has to exist.
 #define PATH_SEP_STR "\\" // contains the path separator as a string, useful for concatenation. Yes it is extremely annoying that this has to exist.
 
-int faccess(char const *restrict fname, int perms) {
+int faccess(char const *restrict fname, int perms)
+{
 	return _access(fname, perms);
 }
 #else

src/util/compat/os.h

@@ -1,5 +1,6 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
 #pragma once
 
 #if defined(__unix__)

src/util/conf.c

@@ -1,179 +0,0 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#include "conf.h"
-
-#include <assert.h>
-#include <errno.h>
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "../error.h"
-#include "atrb.h"
-#include "types.h"
-
-int conf_procbuf(char const *restrict buf, char *restrict kout, char *restrict vout, size_t len) {
-	bool feq = false; // whether we've found the equal sign
-
-	// data traversal
-	char *pos = kout; // will point to the next point in the buffer, where we'll write data
-
-	// acquire data
-	for (size_t i = 0; i < len; i++) {
-		// handling of termination tokens
-		bool brk = false; // whether we broke out of the loop, and are done reading
-		switch (buf[i]) {
-		case '\n':
-		case '\r':
-		case '\0':
-		case '#':
-			brk = true;
-			break;
-		}
-		if (brk) break;
-
-		// everything after `=` is interpreted as a value
-		if (!feq && buf[i] == '=') {
-			feq = true;
-			*pos = '\0'; // terminate string
-			pos = vout;  // move pointer to start of value data
-			continue;
-		}
-		*pos = buf[i]; // copy over the buffer's data
-		pos++;         // increment the position pointer
-	}
-	// null-terminate what we've got now (yes, there should be enough space for this since \0 isn't stored)
-	// this also ensures the value is valid, even if none is given
-	*pos = '\0';
-
-	// no data if we didn't move from the key position
-	// syntax error if we couldn't find the equal sign
-	return (pos == kout) ? CONF_ENODAT : (!feq ? CONF_ESYNTAX : 0);
-}
-
-struct conf_entry const *conf_matchopt(struct conf_entry const *opts, size_t optc, char const *restrict key) {
-	// find a match for the current key
-	size_t i = 0;
-	for (; i < optc; i++) {
-		if (strcmp(opts[i].key, key) == 0)
-			return opts + i;
-	}
-	return NULL;
-}
-
-int conf_procval(struct conf_entry const *opt, char const *restrict val) {
-	// parse the data
-	errno = 0;
-	char *end;
-	u8 dat[sizeof(u64)];
-
-	switch (opt->type) {
-	// signed integer data parsing
-	case CONF_I8:
-	case CONF_I16:
-	case CONF_I32:
-	case CONF_I64:
-		*(i64 *)dat = strtoll(val, &end, 10); // for signed integer types
-		break;
-	// unsigned integer data parsing
-	case CONF_U8:
-	case CONF_U16:
-	case CONF_U32:
-	case CONF_U64:
-		*(u64 *)dat = strtoull(val, &end, 10); // for unsigned integer types
-		break;
-
-	// floating-point data parsing
-	case CONF_F32: *(f32 *)dat = strtof(val, &end); break;
-	case CONF_F64: *(f64 *)dat = strtod(val, &end); break;
-
-	// string data parsing
-	case CONF_STR:
-		if (*(char **)opt->out) {
-			free(*(char **)opt->out); // if the same key is given multiple times, free the memory so we don't leak.
-			warn("encountered a dynamic string multiple times, this is sub-optimal.");
-		}
-		*(char **)opt->out = strdup(val);
-		return 0;
-	case CONF_FSTR: {
-		struct conf_fstr *s = opt->out;
-		strncpy(s->out, val, s->len);
-		s->out[s->len - 1] = '\0'; // ensure the string is null-terminated
-		return 0;
-	}
-	default: return CONF_EINVALIDTYPE; // return error code indicating function not implemented
-	}
-
-	if (errno || end == val || *end != '\0') {
-		error("failed to parse '%s' as a numeric value", val);
-		return CONF_EPARSE;
-	}
-
-	switch (opt->type) {
-	case CONF_U8:  *(u8 *)opt->out = *(u64 *)dat >= UINT8_MAX ? UINT8_MAX : *(u64 *)dat; return 0;
-	case CONF_U16: *(u16 *)opt->out = *(u64 *)dat >= UINT16_MAX ? UINT16_MAX : *(u64 *)dat; return 0;
-	case CONF_U32: *(u32 *)opt->out = *(u64 *)dat >= UINT32_MAX ? UINT32_MAX : *(u64 *)dat; return 0;
-	case CONF_U64: *(u64 *)opt->out = *(u64 *)dat >= UINT64_MAX ? UINT64_MAX : *(u64 *)dat; return 0;
-	case CONF_I8:  *(i8 *)opt->out = *(i64 *)dat >= INT8_MAX ? INT8_MAX : (*(i64 *)dat <= INT8_MIN ? INT8_MIN : *(i64 *)dat); return 0;
-	case CONF_I16: *(i16 *)opt->out = *(i64 *)dat >= INT16_MAX ? INT16_MAX : (*(i64 *)dat <= INT16_MIN ? INT16_MIN : *(i64 *)dat); return 0;
-	case CONF_I32: *(i32 *)opt->out = *(i64 *)dat >= INT32_MAX ? INT32_MAX : (*(i64 *)dat <= INT32_MIN ? INT32_MIN : *(i64 *)dat); return 0;
-	case CONF_I64: *(i64 *)opt->out = *(i64 *)dat >= INT64_MAX ? INT64_MAX : (*(i64 *)dat <= INT64_MIN ? INT64_MIN : *(i64 *)dat); return 0;
-	case CONF_F32: *(f32 *)opt->out = *(f32 *)dat; return 0;
-	case CONF_F64: *(f64 *)opt->out = *(f64 *)dat; return 0;
-	default:       fatal("invalid switch state, all cases should be handled already"); // abort; this shouldn't be possible, so I blame the programmer
-	}
-}
-
-/* utility function for conf_getpat to concatenate 3 strings, where we already know the size */
-atrb_nonnull(1, 3) static char *conf_getpat_concat(char const *restrict s1, char const *restrict s2, char const *restrict s3, size_t s1len, size_t s2len, size_t s3len) {
-	assert(s2 || (!s2 && !s2len)); // ensuring the programmer passes both s2 and s2len as 0, if they intend to
-	char *buf, *ptr;
-
-	// allocate enough data for all three to the buffer
-	ptr = malloc(s1len + s2len + s3len + 1);
-	if (!ptr) return NULL;
-	buf = ptr; // store the head pointer into buf
-
-	// copy data to the buffer
-	ptr = mempcpy(ptr, s1, s1len);            // copy s1 data to the buffer
-	if (s2len) ptr = mempcpy(ptr, s2, s2len); // copy s2 data to the buffer (excluding null-terminator)
-	(void)strcpy(ptr, s3);                    // copy s3 as a string, thus including null-terminator
-
-	// return the buffer
-	return buf;
-}
-
-/* appends str to the config directory string we acquire from environment variables. */
-char *conf_getpat(char const *restrict str) {
-	char *buf = NULL;
-	size_t len;
-	size_t str_len = strlen(str);
-#if defined(__linux__)
-	buf = getenv("XDG_CONFIG_HOME");
-	if (!buf) {
-		buf = getenv("HOME");
-		if (!buf) return NULL;
-		len = strlen(buf);
-		return conf_getpat_concat(buf, "/.config", str, len, 8, str_len);
-	}
-	return conf_getpat_concat(buf, NULL, str, strlen(buf), 0, str_len);
-#elif defined(__APPLE__)
-	buf = getenv("HOME");
-	if (!buf) return NULL;
-	len = strlen(buf);
-	return conf_getpat_concat(buf, "/Library/Application Support", str, len, 28, str_len);
-#elif defined(_WIN32) || defined(_WIN64) || defined(__CYGWIN__)
-	buf = getenv("APPDATA");
-	if (!buf) {
-		buf = getenv("USERPROFILE");
-		if (!buf) return NULL;
-		len = strlen(buf);
-		return conf_getpat_concat(buf, "\\AppData\\Roaming", str, len, 16, str_len);
-	}
-	return conf_getpat_concat(buf, NULL, str, strlen(buf), 0, str_len);
-#else
-#error platform unsupported!
-#endif
-}

src/util/conf.h

@@ -1,70 +0,0 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#pragma once
-
-#include <stddef.h>
-#include <stdint.h>
-#include <stdlib.h>
-
-#include "atrb.h"
-
-/* error codes */
-enum conf_err {
-	CONF_ENODAT = -1,      // no data was found
-	CONF_ESYNTAX = 1,      // couldn't extract clear key/val data
-	CONF_ENOMATCH = 2,     // couldn't find a match for the inputted key
-	CONF_EINVALIDTYPE = 3, // the type inputted in conf_entry was invalid
-	CONF_EPARSE = 4,       // something went wrong whilst parsing
-};
-
-/* defines the primitive types available in the config file */
-enum conf_primitive {
-	CONF_STR = 0,               // expects: `char**`, will output malloc'd data !!must be freed!!
-	CONF_I8 = 1,                // expects: `int8_t*`, will point to a location in memory where an i8 is stored.
-	CONF_I16 = 2,               // expects: `int16_t*`, will point to a location in memory where an i16 is stored.
-	CONF_I32 = 4,               // expects: `int32_t*`, will point to a location in memory where an i32 is stored.
-	CONF_I64 = 8,               // expects: `int64_t*`, will point to a location in memory where an i64 is stored.
-	CONF_U8 = CONF_I8 | 0x80,   // expects: `uint8_t*`, will point to a location in memory where an u8 is stored.
-	CONF_U16 = CONF_I16 | 0x80, // expects: `uint16_t*`, will point to a location in memory where an u16 is stored.
-	CONF_U32 = CONF_I32 | 0x80, // expects: `uint32_t*`, will point to a location in memory where an u32 is stored.
-	CONF_U64 = CONF_I64 | 0x80, // expects: `uint64_t*`, will point to a location in memory where an u64 is stored.
-	CONF_F32 = CONF_I32 | 0x40, // expects: `float*`, will point to a location in memory where an f32 is stored.
-	CONF_F64 = CONF_I64 | 0x40, // expects: `double*`, will point to a location in memory where an f64 is stored.
-	CONF_FSTR = 0x40,           // expects: `struct conf_fstr*`, which contains the data for a fixed-width string
-};
-
-/* for outputting a fixed string as this config field */
-struct conf_fstr {
-	size_t len; // length in BYTES of the output data
-	char *out;  // where we will output the data
-};
-
-/* defines the structure of a config file entry */
-struct conf_entry {
-	char const *key; // the key of this entry
-	void *out;       // the pointer to which the data is written value is read if the given option is incorrect or missing
-	uint8_t type;    // the primitive type which we are querying for
-};
-
-/* processes an incoming buffer.
- * `buf`, `kout` and `vout` mustn't overlap, and must be (at least) `len` bytes long!
- * `kout` and `vout` will contain a null-terminated string if the function returned successfully.
- * returns `0` on success, `<0` when no data was found. `>0` when data was invalid but something went wrong.
- * see `CONF_E*` or `enum conf_err` */
-int conf_procbuf(char const *restrict buf, char *restrict kout, char *restrict vout, size_t len);
-
-/* matches the key with one of the options and returns the pointer. Returns NULL if none could be found. */
-struct conf_entry const *conf_matchopt(struct conf_entry const *opts, size_t optc, char const *restrict key);
-
-/* processes the value belonging to the key and outputs the result to opts.
- * - `val` points to a null-terminated string which contains the key and value.
- * returns `0` upon success, non-zero upon failure. For information about specific error codes, see `enum conf_err` */
-int conf_procval(struct conf_entry const *opts, char const *restrict val);
-
-/* acquires the config file path, appending str to the end (you need to handle path separators yourself)
- * expecting str to be null-terminated
- * - linux:   reads $XDG_CONFIG_HOME, if empty $HOME/.config is used, if $HOME is empty NULL is returned.
- * - windows: reads %APPDATA%, if empty %USERPROFILE%\AppData\Roaming is used, if both are empty NULL is returned.
- * - osx:     reads $HOME, uses $HOME/Library/Application Support, if $HOME is empty NULL is returned.
- * !! A malloc'd null-terminated string is returned !! */
-atrb_malloc atrb_nonnull(1) char *conf_getpat(char const *);

src/util/error.c

@@ -0,0 +1,64 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#include "error.h"
+
+#include <stdarg.h>
+#include <stdio.h>
+
+#include "../types.h"
+
+static void error_log(FILE *restrict stream, const char *restrict pfx, uint ln, const char *restrict file, const char *restrict fmt, va_list ap)
+{
+	fprintf(stream, "(%s:%u) [%s] '", file, ln, pfx);
+	vfprintf(stream, fmt, ap);
+	fprintf(stream, "'\n");
+}
+
+void error_debug(uint ln, const char *restrict file, const char *restrict fmt, ...)
+{
+#ifndef NDEBUG
+#else
+	char *env = getenv("DEBUG");
+	if (env && env[0] != '1')
+		return;
+#endif
+	va_list ap;
+	va_start(ap, fmt);
+	error_log(stdout, "\033[95mDBG\033[0m", ln, file, fmt, ap);
+	va_end(ap);
+}
+
+void error_info(uint ln, const char *restrict file, const char *restrict fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	error_log(stdout, "\033[94mINF\033[0m", ln, file, fmt, ap);
+	va_end(ap);
+}
+
+void error_warn(uint ln, const char *restrict file, const char *restrict fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	error_log(stdout, "\033[93mWAR\033[0m", ln, file, fmt, ap);
+	va_end(ap);
+}
+
+void error_error(uint ln, const char *restrict file, const char *restrict fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	error_log(stdout, "\033[91mERR\033[0m", ln, file, fmt, ap);
+	va_end(ap);
+}
+
+void error_fatal(uint ln, const char *restrict file, const char *restrict fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	error_log(stdout, "\033[101mFAT\033[0m", ln, file, fmt, ap);
+	va_end(ap);
+
+	exit(EXIT_FAILURE);
+}

src/util/error.h

@@ -0,0 +1,22 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#pragma once
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../types.h"
+#include "atrb.h"
+
+void error_debug(uint ln, const char *restrict file, const char *restrict fmt, ...);
+void error_info(uint ln, const char *restrict file, const char *restrict fmt, ...);
+void error_warn(uint ln, const char *restrict file, const char *restrict fmt, ...);
+void error_error(uint ln, const char *restrict file, const char *restrict fmt, ...);
+void error_fatal(uint ln, const char *restrict file, const char *restrict fmt, ...) NORET;
+
+#define debug(...) error_debug(__LINE__, __FILE__ __VA_OPT__(, ) __VA_ARGS__)
+#define info(...)  error_info(__LINE__, __FILE__ __VA_OPT__(, ) __VA_ARGS__)
+#define warn(...)  error_warn(__LINE__, __FILE__ __VA_OPT__(, ) __VA_ARGS__)
+#define error(...) error_error(__LINE__, __FILE__ __VA_OPT__(, ) __VA_ARGS__)
+#define fatal(...) error_fatal(__LINE__, __FILE__ __VA_OPT__(, ) __VA_ARGS__)

src/util/macro.h

@@ -1,5 +1,6 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
 #pragma once
 
 #define WIDTHOF(t)       (sizeof(t) * 8) // gets the bit width of a type

src/util/types.h

@@ -1,24 +0,0 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#pragma once
-
-/* variable-width integer types */
-typedef unsigned int uint;         // ≥16 bit unsigned integer
-typedef unsigned long ulong;       // ≥32 bit unsigned integer
-typedef signed long long llong;    // ≥64 bit signed integer
-typedef unsigned long long ullong; // ≥64 bit unsigned integer
-
-/* fixed-width integer types */
-#include <stdint.h>
-typedef int8_t i8;
-typedef int16_t i16;
-typedef int32_t i32;
-typedef int64_t i64;
-typedef uint8_t u8;
-typedef uint16_t u16;
-typedef uint32_t u32;
-typedef uint64_t u64;
-
-/* floating point types */
-typedef float f32;  // single-precision floating-point
-typedef double f64; // double-precision floating-point

src/util/util.h

@@ -0,0 +1,9 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#pragma once
+
+/* Acquires the next power of two of value `x`.
+ * Automatically determines the type (and therefore the width) of `x`.
+ * Explicitly cast `x` to a desired width, if necessary. */
+#define bit_ceil(x) (1 << (sizeof(__typeof__(x)) * 8 - __builtin_clzg(((x) - !!(x)) | 1)))

src/util/vec.h

@@ -0,0 +1,21 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#pragma once
+
+#include "../types.h"
+
+#if defined(__has_attribute) && __has_attribute(vector_size)
+typedef float fvec2 __attribute__((vector_size(sizeof(float) * 2))); // SMID vector for 2 `float`
+typedef float fvec4 __attribute__((vector_size(sizeof(float) * 4))); // SMID vector for 4 `float`
+
+typedef u8 u8vec2 __attribute__((vector_size(sizeof(u8) * 2))); // SMID vector for 2 `u8`
+typedef u8 u8vec4 __attribute__((vector_size(sizeof(u8) * 4))); // SMID vector for 4 `u8`
+#else
+#error the platform is unsupported, attribute vector_size must be available (and so does __has_attribute)
+#endif
+
+#define VX 0
+#define VY 1
+#define VZ 2
+#define VW 3

src/util/vec/float2.h

@@ -1,69 +0,0 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#pragma once
-
-#include <math.h>
-
-#include "../atrb.h"
-
-// stores a 2D point using a floating-point number
-struct float2 {
-	float x;
-	float y;
-};
-typedef struct float2 float2;
-
-// adds one float2 to another
-atrb_const static inline float2 float2_add(float2 v1, float2 v2) {
-	return (float2){v1.x + v2.x, v1.y + v2.y};
-}
-
-// subtracts one float2 from another
-atrb_const static inline float2 float2_sub(float2 v1, float2 v2) {
-	return (float2){v1.x - v2.x, v1.y - v2.y};
-}
-
-// multiplies one float2 by another
-atrb_const static inline float2 float2_mul(float2 v1, float2 v2) {
-	return (float2){v1.x * v2.x, v1.y * v2.y};
-}
-
-// divides one float2 by another
-atrb_const static inline float2 float2_div(float2 v1, float2 v2) {
-	return (float2){v1.x / v2.x, v1.y / v2.y};
-}
-
-// preforms a scalar multiplication upon the float2 (multiplies the float2 by some value)
-atrb_const static inline float2 float2_mul_s(float2 v, float n) {
-	return (float2){v.x * n, v.y * n};
-}
-
-// preforms a scalar division upon the float2 (divides the float2 by some value)
-atrb_const static inline float2 float2_div_s(float2 v, float n) {
-	return (float2){v.x / n, v.y / n};
-}
-
-atrb_const static inline float2 float2_neg(float2 v) {
-	return (float2){-v.x, -v.y};
-}
-
-// gets the squared magnitude/length of float2
-atrb_const static inline float float2_mag2(float2 v) {
-	return (v.x * v.x) + (v.y * v.y);
-}
-
-// gets the length of float2 (length)
-atrb_const static inline float float2_mag(float2 v) {
-	return sqrtf(float2_mag2(v));
-}
-
-// normalizes the float2
-atrb_const static inline float2 float2_norm(float2 v) {
-	float s = 1.0F / float2_mag(v); // get the scaling factor
-	return float2_mul_s(v, s);      // scale the vector by the scaling factor (slightly more efficient than dividing)
-}
-
-// gets the dot product of two float2s
-atrb_const static inline float float2_dot(float2 v1, float2 v2) {
-	return v1.x * v2.x + v1.y * v2.y;
-}

src/util/vec/float3.h

@@ -1,70 +0,0 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#pragma once
-
-#include <math.h>
-
-#include "../atrb.h"
-
-// stores a 3D point using a floating-point number
-struct float3 {
-	float x;
-	float y;
-	float z;
-};
-typedef struct float3 float3;
-
-// adds one float3 to another
-atrb_const static inline float3 float3_add(float3 v1, float3 v2) {
-	return (float3){v1.x + v2.x, v1.y + v2.y, v1.z + v2.z};
-}
-
-// subtracts one float3 from another
-atrb_const static inline float3 float3_sub(float3 v1, float3 v2) {
-	return (float3){v1.x - v2.x, v1.y - v2.y, v1.z - v2.z};
-}
-
-// multiplies one float3 by another
-atrb_const static inline float3 float3_mul(float3 v1, float3 v2) {
-	return (float3){v1.x * v2.x, v1.y * v2.y, v1.z * v2.z};
-}
-
-// divides one float3 by another
-atrb_const static inline float3 float3_div(float3 v1, float3 v2) {
-	return (float3){v1.x / v2.x, v1.y / v2.y, v1.z / v2.z};
-}
-
-// preforms a scalar multiplication upon the float3 (multiplies the float3 by some value)
-atrb_const static inline float3 float3_mul_s(float3 v, float n) {
-	return (float3){v.x * n, v.y * n, v.z * n};
-}
-
-// preforms a scalar division upon the float3 (divides the float3 by some value)
-atrb_const static inline float3 float3_div_s(float3 v, float n) {
-	return (float3){v.x / n, v.y / n, v.z / n};
-}
-
-atrb_const static inline float3 float3_neg(float3 v) {
-	return (float3){-v.x, -v.y, -v.z};
-}
-
-// gets the squared magnitude/length of float3
-atrb_const static inline float float3_mag2(float3 v) {
-	return (v.x * v.x) + (v.y * v.y) + (v.z * v.z);
-}
-
-// gets the length of float3 (length)
-atrb_const static inline float float3_mag(float3 v) {
-	return sqrtf(float3_mag2(v));
-}
-
-// normalizes the float3
-atrb_const static inline float3 float3_norm(float3 v) {
-	float s = 1.0F / float3_mag(v); // get the scaling factor
-	return float3_mul_s(v, s);      // scale the vector by the scaling factor (slightly more efficient than dividing)
-}
-
-// gets the dot product of two float3s
-atrb_const static inline float float3_dot(float3 v1, float3 v2) {
-	return v1.x * v2.x + v1.y * v2.y + v1.z * v2.z;
-}

src/util/vec/int2.h

@@ -1,51 +0,0 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#pragma once
-
-#include "../atrb.h"
-
-// stores a 2D point using a floating-point number
-struct int2 {
-	int x;
-	int y;
-};
-typedef struct int2 int2;
-
-// adds one int2 to another
-atrb_const static inline int2 int2_add(int2 v1, int2 v2) {
-	return (int2){v1.x + v2.x, v1.y + v2.y};
-}
-
-// subtracts one int2 from another
-atrb_const static inline int2 int2_sub(int2 v1, int2 v2) {
-	return (int2){v1.x - v2.x, v1.y - v2.y};
-}
-
-// multiplies one int2 by another
-atrb_const static inline int2 int2_mul(int2 v1, int2 v2) {
-	return (int2){v1.x * v2.x, v1.y * v2.y};
-}
-
-// divides one int2 by another
-atrb_const static inline int2 int2_div(int2 v1, int2 v2) {
-	return (int2){v1.x / v2.x, v1.y / v2.y};
-}
-
-// preforms a scalar multiplication upon the int2 (multiplies the int2 by some value)
-atrb_const static inline int2 int2_mul_s(int2 v, float n) {
-	return (int2){v.x * n, v.y * n};
-}
-
-// preforms a scalar division upon the int2 (divides the int2 by some value)
-atrb_const static inline int2 int2_div_s(int2 v, float n) {
-	return (int2){v.x / n, v.y / n};
-}
-
-atrb_const static inline int2 int2_neg(int2 v) {
-	return (int2){-v.x, -v.y};
-}
-
-// gets the dot product of two int2s
-atrb_const static inline int int2_dot(int2 v1, int2 v2) {
-	return v1.x * v2.x + v1.y * v2.y;
-}

src/util/vec/int4.h

@@ -1,53 +0,0 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#pragma once
-
-#include "../atrb.h"
-
-// stores a 2D point using a floating-point number
-struct int4 {
-	int x;
-	int y;
-	int z;
-	int w;
-};
-typedef struct int4 int4;
-
-// adds one int4 to another
-atrb_const static inline int4 int4_add(int4 v1, int4 v2) {
-	return (int4){v1.x + v2.x, v1.y + v2.y, v1.z - v2.z, v1.w - v2.w};
-}
-
-// subtracts one int4 from another
-atrb_const static inline int4 int4_sub(int4 v1, int4 v2) {
-	return (int4){v1.x - v2.x, v1.y - v2.y, v1.z - v2.z, v1.w - v2.w};
-}
-
-// multiplies one int4 by another
-atrb_const static inline int4 int4_mul(int4 v1, int4 v2) {
-	return (int4){v1.x * v2.x, v1.y * v2.y, v1.z * v2.z, v1.w * v2.w};
-}
-
-// divides one int4 by another
-atrb_const static inline int4 int4_div(int4 v1, int4 v2) {
-	return (int4){v1.x / v2.x, v1.y / v2.y, v1.z / v2.z, v1.w / v2.w};
-}
-
-// preforms a scalar multiplication upon the int4 (multiplies the int4 by some value)
-atrb_const static inline int4 int4_mul_s(int4 v, float n) {
-	return (int4){v.x * n, v.y * n, v.z * n, v.w * n};
-}
-
-// preforms a scalar division upon the int4 (divides the int4 by some value)
-atrb_const static inline int4 int4_div_s(int4 v, float n) {
-	return (int4){v.x / n, v.y / n, v.z / n, v.w / n};
-}
-
-atrb_const static inline int4 int4_neg(int4 v) {
-	return (int4){-v.x, -v.y, -v.z, v.w};
-}
-
-// gets the dot product of two int2s
-atrb_const static inline int int4_dot(int4 v1, int4 v2) {
-	return v1.x * v2.x + v1.y * v2.y + v1.z * v2.z + v1.w * v2.w;
-}

test/dat.h

@@ -1,42 +0,0 @@
-#include <stdint.h>
-
-#include "../src/util/conf.h"
-#include "../src/util/types.h"
-#include "../src/util/vec/float3.h"
-#include "t_conf.h"
-#include "t_util.h"
-#include "test.h"
-
-testdat tests[] = {
-	{"",            test_float3_norm,        &(float3){2.0F, 0.67F, 5.0F}                                                    },
-	{"",            test_float3_norm,        &(float3){0.2F, 0.4F, 0.1F}                                                     },
-	{"",            test_bswap16,            (u16[]){0x11EE, 0xEE11}							 },
-	{"",            test_bswap32,            (u32[]){0x1142ADEE, 0xEEAD4211}                                                 },
-	{"",            test_bswap64,            (u64[]){0x114266897799ADEE, 0xEEAD997789664211}                                 },
-	{"",            test_bswap16_impl,       (u16[]){0x11EE, 0xEE11}							 },
-	{"",            test_bswap32_impl,       (u32[]){0x1142ADEE, 0xEEAD4211}                                                 },
-	{"",            test_bswap64_impl,       (u64[]){0x114266897799ADEE, 0xEEAD997789664211}                                 },
-	{"k=v",         test_procbuf,            &(struct test_procbuf){"key=val", "key", "val", 0}                              },
-	{"sometxt",     test_procbuf,            &(struct test_procbuf){"sometxt", "sometxt", "", CONF_ESYNTAX}                  },
-	{"comment",     test_procbuf,            &(struct test_procbuf){"# comment", "", "", CONF_ENODAT}                        },
-	{"empty",       test_procbuf,            &(struct test_procbuf){"", "", "", CONF_ENODAT}                                 },
-	{"LF",          test_procbuf,            &(struct test_procbuf){"\n", "", "", CONF_ENODAT}                               },
-	{"CRLF",        test_procbuf,            &(struct test_procbuf){"\r\n", "", "", CONF_ENODAT}                             },
-	{"k=v (LF)",    test_procbuf,            &(struct test_procbuf){"k=v\na", "k", "v", 0}                                   },
-	{"k=v (CRLF)",  test_procbuf,            &(struct test_procbuf){"k=v\r\na", "k", "v", 0}                                 },
-	{"get",         test_matchopt,           &(struct test_matchopt){"key3", 2}                                              },
-	{"invalid",     test_matchopt,           &(struct test_matchopt){"nono", -1}                                             },
-	{"",            test_colour32_endianess, NULL									    }, // NOTE: formatter is fucking with alignment making it use tabs @.@
-	{"i32",         test_procval_int,        &(struct test_procval_int){"42", 42, CONF_I32}                                  },
-	{"i32_neg",     test_procval_int,        &(struct test_procval_int){"-42", (u32)-42, CONF_I32}                           },
-	{"u32_max",     test_procval_int,        &(struct test_procval_int){"4294967295", UINT32_MAX, CONF_U64}                  },
-	{"u64",         test_procval_int,        &(struct test_procval_int){"3141592653589793238", 3141592653589793238, CONF_U64}},
-	{"u8_overflow", test_procval_int,        &(struct test_procval_int){"256", 255, CONF_U8}                                 },
-	{"",            test_procval_f32,        NULL									    },
-	{"",            test_procval_str,        NULL									    },
-	{"",            test_procval_str_predef, NULL									    },
-	{"",            test_procval_fstr,       NULL									    },
-	{"",            test_procval_fstr_trunc, NULL									    },
-	{"",            test_procval_eparse,     NULL									    },
-	{"",            test_getpat,             NULL									    },
-};

test/main.c

@@ -1,19 +1,55 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
-#define GLAD_GL_IMPLEMENTATION
-#include <glad/gl.h>
-#undef GLAD_GL_IMPLEMENTATION
-
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
 #include <stdint.h>
 #include <stdio.h>
-#include <stdlib.h>
 
-#include "dat.h" // contains the test data
 #include "test.h"
+#include "test_conf.h"
 
-int main(void) {
-	// get test count
-	size_t n = sizeof(tests) / sizeof(tests[0]);
+int main(void)
+{
+	assert_true(-3 >> 5 == -1); // checking for arithmetic shift, rather than logical shift
+	assert_true(sizeof(u8) == 1);
+	assert_true(sizeof(u16) == 2);
+	assert_true(sizeof(u32) == 4);
+	assert_true(sizeof(u64) == 8);
+	assert_true(sizeof(f32) == 4);
+	assert_true(sizeof(f64) == 8);
+	assert_true(sizeof(usize) == sizeof(size_t));
+	test_conf_procbuf("key=val", "key", "val", 0);
+	test_conf_procbuf("sometxt", "sometxt", "", CONF_ESYNTAX);
+	test_conf_procbuf("# comment", "", "", CONF_ENODAT);
+	test_conf_procbuf("", "", "", CONF_ENODAT);
+	test_conf_procbuf("\n", "", "", CONF_ENODAT);
+	test_conf_procbuf("\r\n", "", "", CONF_ENODAT);
+	test_conf_procbuf("k=v\na", "k", "v", 0);
+	test_conf_procbuf("k=v\r\na", "k", "v", 0);
+	test_conf_getpat();
 
-	return exec_tests(tests, n);
+	struct conf_entry opts[] = {
+		{"key0", NULL, 0},
+		{"key1", NULL, 0},
+		{"key2", NULL, 0}
+        };
+	test_conf_matchopt(opts, 3, "key0", 0);
+	test_conf_matchopt(opts, 3, "key1", 1);
+	test_conf_matchopt(opts, 3, "key2", 2);
+	test_conf_matchopt(opts, 3, "key3", -1);
+
+	test_conf_procval_int("42", 42, CONF_I32);
+	test_conf_procval_int("-42", (u32)-42, CONF_I32);
+	test_conf_procval_int("4294967295", UINT32_MAX, CONF_U32);
+	test_conf_procval_int("9223372036854775807", INT64_MAX, CONF_I64);
+	test_conf_procval_int("256", 255, CONF_U8);
+
+	// TODO: write more tests for float parsing
+	test_conf_procval_f32("0.0", 0.0f);
+	test_conf_procval_f32("3.14159", 3.14159f);
+	test_conf_procval_f32("3.1428571428", 22.0f / 7.0f);
+	test_conf_procval_f32("-5.0", -5.0f);
+
+	/* return 1 if there were failed tests. */
+	printf("test results: (%u/%u)\n", test_okay, test_okay + test_fail);
+	return !!test_fail;
 }

test/t_conf.h

@@ -1,205 +0,0 @@
-#pragma once
-#include <math.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "../src/util/conf.h"
-#include "../src/util/types.h"
-#include "test.h"
-
-// Environment saver structure for conf_getpat tests
-#if defined(__linux__) || defined(__APPLE__) || defined(_WIN32) || defined(_WIN64) || defined(__CYGWIN__)
-struct test_getpat_envdat {
-	char *xdg_config_home;
-	char *home;
-	char *appdata;
-	char *userprofile;
-};
-
-/* save the current environment variables */
-static void env_save(struct test_getpat_envdat *s) {
-	char const *tmp;
-
-	tmp = getenv("XDG_CONFIG_HOME");
-	s->xdg_config_home = tmp ? strdup(tmp) : NULL;
-
-	tmp = getenv("HOME");
-	s->home = tmp ? strdup(tmp) : NULL;
-
-	tmp = getenv("APPDATA");
-	s->appdata = tmp ? strdup(tmp) : NULL;
-
-	tmp = getenv("USERPROFILE");
-	s->userprofile = tmp ? strdup(tmp) : NULL;
-}
-
-/* restores the environment variables to what they were before */
-static void env_restore(struct test_getpat_envdat *s) {
-#ifdef _WIN32
-	if (s->xdg_config_home) _putenv_s("XDG_CONFIG_HOME", s->xdg_config_home);
-	else _putenv("XDG_CONFIG_HOME=");
-	if (s->home) _putenv_s("HOME", s->home);
-	else _putenv("HOME=");
-	if (s->appdata) _putenv_s("APPDATA", s->appdata);
-	else _putenv("APPDATA=");
-	if (s->userprofile) _putenv_s("USERPROFILE", s->userprofile);
-	else _putenv("USERPROFILE=");
-#else
-	if (s->xdg_config_home) setenv("XDG_CONFIG_HOME", s->xdg_config_home, 1);
-	else unsetenv("XDG_CONFIG_HOME");
-	if (s->home) setenv("HOME", s->home, 1);
-	else unsetenv("HOME");
-	if (s->appdata) setenv("APPDATA", s->appdata, 1);
-	else unsetenv("APPDATA");
-	if (s->userprofile) setenv("USERPROFILE", s->userprofile, 1);
-	else unsetenv("USERPROFILE");
-#endif
-	free(s->xdg_config_home);
-	free(s->home);
-	free(s->appdata);
-	free(s->userprofile);
-}
-#endif
-
-/* check procbuf's functionality */
-struct test_procbuf {
-	char const *in;   // data in
-	char const *xkey; // expected key
-	char const *xval; // expected value
-	int xret;         // expected return type
-};
-int test_procbuf(void *arg) {
-	struct test_procbuf *dat = arg;
-	size_t len = strlen(dat->in) + 1;
-	char k[len], v[len];
-	*k = '\0', *v = '\0';
-	return assert_true(conf_procbuf(dat->in, k, v, len) == dat->xret) ||
-		assert_true(!strcmp(k, dat->xkey)) ||
-		assert_true(!strcmp(v, dat->xval));
-}
-
-/* check matchopt functionality */
-struct test_matchopt {
-	char const *key; // key to search for (key1, key2, key3)
-	int xidx;        // expect index (<0 is NULL, may not be more than 2)
-};
-int test_matchopt(void *arg) {
-	struct test_matchopt *dat = arg;
-	struct conf_entry opts[] = {
-		{"key1", NULL, 0},
-		{"key2", NULL, 0},
-		{"key3", NULL, 0},
-	};
-	struct conf_entry *xopt = dat->xidx < 0 ? NULL : opts + dat->xidx;
-	return assert_true(conf_matchopt(opts, 3, dat->key) == xopt);
-}
-
-struct test_procval_int {
-	char const *val;
-	u64 xres;
-	u8 type;
-};
-int test_procval_int(void *arg) {
-	struct test_procval_int *dat = arg;
-	u64 out = 0;
-	return assert_true(!conf_procval(&(struct conf_entry){NULL, &out, dat->type}, dat->val)) ||
-		assert_true(out == dat->xres);
-}
-
-int test_procval_f32(void *arg) {
-	(void)arg;
-	f32 out;
-	return assert_true(!conf_procval(&(struct conf_entry){NULL, &out, CONF_F32}, "3.14159265")) ||
-		assert_true(fabsf(out - 3.14159265F) < 1e-6F);
-}
-
-int test_procval_str(void *arg) {
-	(void)arg;
-	char *out = NULL;
-	int ret = assert_true(!conf_procval(&(struct conf_entry){NULL, (void *)&out, CONF_STR}, "here comes the sowon")) ||
-		assert_false(strcmp("here comes the sowon", out));
-	free(out);
-	return ret;
-}
-
-int test_procval_str_predef(void *arg) {
-	(void)arg;
-	char *out = strdup("owo");
-	int ret = assert_true(!conf_procval(&(struct conf_entry){NULL, (void *)&out, CONF_STR}, "i leak if I don't free")) ||
-		assert_true(!strcmp("i leak if I don't free", out));
-	free(out);
-	return ret;
-}
-
-int test_procval_fstr(void *arg) {
-	(void)arg;
-	char buf[16];
-	struct conf_fstr str = {sizeof(buf), buf};
-	return assert_true(!conf_procval(&(struct conf_entry){NULL, &str, CONF_FSTR}, "hewwoo wowld")) ||
-		assert_true(!strcmp(str.out, "hewwoo wowld"));
-}
-
-int test_procval_fstr_trunc(void *arg) {
-	(void)arg;
-	char buf[8];
-	struct conf_fstr str = {sizeof(buf), buf};
-	return assert_true(!conf_procval(&(struct conf_entry){NULL, &str, CONF_FSTR}, "hewwooo wowld")) ||
-		assert_true(!strcmp(str.out, "hewwooo"));
-}
-
-int test_procval_eparse(void *arg) {
-	(void)arg;
-	i32 out;
-	return assert_true(conf_procval(&(struct conf_entry){NULL, &out, CONF_I32}, "owo") == CONF_EPARSE);
-}
-
-/* ensure paths are being set correctly */
-int test_getpat(void *arg) {
-	(void)arg;
-	struct test_getpat_envdat envs;
-	env_save(&envs);
-	int ret = 0;
-	char *path = NULL;
-
-#ifdef __linux__
-	setenv("XDG_CONFIG_HOME", "/test/config", 1);
-	path = conf_getpat("/app");
-	ret |= assert_true(path && !strcmp(path, "/test/config/app"));
-	free(path);
-	unsetenv("XDG_CONFIG_HOME");
-
-	setenv("HOME", "/test/home", 1);
-	path = conf_getpat("/app");
-	ret |= assert_true(path && !strcmp(path, "/test/home/.config/app"));
-	free(path);
-
-	unsetenv("HOME");
-#elif defined(__APPLE__)
-	setenv("HOME", "/test/home", 1);
-	path = conf_getpat("/app");
-	ret |= assert_true(path && !strcmp(path, "/test/home/Library/Application Support/app"));
-	free(path);
-
-	unsetenv("HOME");
-#elif defined(_WIN32) || defined(_WIN64) || defined(__CYGWIN__)
-	_putenv("APPDATA=C:\\test\\appdata");
-	path = conf_getpat("\\app");
-	ret |= assert_true(path && !strcmp(path, "C:\\test\\appdata\\app"));
-	free(path);
-
-	_putenv("APPDATA=");
-	_putenv("USERPROFILE=C:\\test\\user");
-	path = conf_getpat("\\app");
-	ret |= assert_true(path && !strcmp(path, "C:\\test\\user\\AppData\\Roaming\\app"));
-	free(path);
-
-	_putenv("USERPROFILE=");
-#endif
-	void *ptr;
-	ret |= assert_true(!(ptr = conf_getpat("anything")));
-	free(ptr);
-
-	env_restore(&envs);
-	return ret;
-}

test/t_util.h

@@ -1,55 +0,0 @@
-#pragma once
-#include <math.h>
-#include <stdint.h>
-
-#include "../src/util/colour32.h"
-#include "../src/util/compat/bswap.h"
-#include "../src/util/types.h"
-#include "../src/util/vec/float3.h"
-#include "test.h"
-
-int test_float3_norm(void *d) {
-	float *arg = d;
-	float3 v = {arg[0], arg[1], arg[2]};
-	float3 r = float3_norm(v);
-	float n = r.x * r.x + r.y * r.y + r.z * r.z;
-
-	// check if the value is within 1 millionth of the one we expect
-	return assert_true(fabsf(n - 1.0F) < 1e-6F);
-}
-
-int test_colour32_endianess(void *d) {
-	(void)d;
-	colour32 c = {0xFF000000}; // setting just the red channel
-	return assert_true(c.ch.r == 0xFF);
-}
-
-int test_bswap16(void *d) {
-	u16 *arg = d;
-	return assert_true(bswap16(arg[0]) == arg[1]);
-}
-
-int test_bswap32(void *d) {
-	u32 *arg = d;
-	return assert_true(bswap32(arg[0]) == arg[1]);
-}
-
-int test_bswap64(void *d) {
-	u64 *arg = d;
-	return assert_true(bswap64(arg[0]) == arg[1]);
-}
-
-int test_bswap16_impl(void *d) {
-	u16 *arg = d;
-	return assert_true(bswap16_impl(arg[0]) == arg[1]);
-}
-
-int test_bswap32_impl(void *d) {
-	u32 *arg = d;
-	return assert_true(bswap32_impl(arg[0]) == arg[1]);
-}
-
-int test_bswap64_impl(void *d) {
-	u64 *arg = d;
-	return assert_true(bswap64_impl(arg[0]) == arg[1]);
-}

test/test.c

@@ -0,0 +1,21 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#include "test.h"
+
+#include "../src/types.h"
+
+uint test_okay = 0;
+uint test_fail = 0;
+
+int test_process(int res, const char *restrict file, uint ln, const char *restrict function, const char *restrict expression)
+{
+	const char *status = res ?
+		"[\033[32;1m  OK  \033[0m]" :
+		"[\033[31;1m FAIL \033[0m]";
+	test_okay += !!res;
+	test_fail += !res;
+
+	printf("%s\t%s:%u-%s\t-> %s\n", status, file, ln, function, expression);
+	return res;
+}

test/test.h

@@ -1,48 +1,17 @@
-// Copyright (c) 2025 Quinn
-// Licensed under the MIT Licence. See LICENSE for details
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
 #pragma once
 #include <stdio.h>
 
-char const *test_ctest;
-size_t test_runs = 0;
+#include "../src/types.h"
 
-// evaluates the test
-// returns 1 upon error
-static inline int assert_helper(int cond, char const *restrict fname, unsigned ln, char const *restrict fnname, char const *restrict expr) {
-	test_runs++;
-	if (cond)
-		printf("[\033[32;1m  OK  \033[0m] %s %s -> %s:%u (%s)\n", test_ctest, fnname, fname, ln, expr);
-	else
-		printf("[\033[31;1m FAIL \033[0m] %s %s -> %s:%u (%s)\n", test_ctest, fnname, fname, ln, expr);
-	return !cond;
-}
+extern uint test_okay;
+extern uint test_fail;
 
-#define assert_true(expr)  assert_helper(!!(expr), __FILE__, __LINE__, __func__, #expr) // evaluation expected to be true
-#define assert_false(expr) assert_helper(!(expr), __FILE__, __LINE__, __func__, #expr)  // evaluation expected to be false
+/* Prints the result `res` of a test.
+ * Returns `res` back, for ease of chaining. */
+int test_process(int res, const char *restrict file, uint ln, const char *restrict function, const char *restrict expression);
 
-// contains the data for executing a single test
-struct testdat {
-	char const *name;    // test name
-	int (*test)(void *); // test, returns 0 upon success, non-zero upon failure
-	void *args;          // arguments to the test
-};
-typedef struct testdat testdat;
-
-// executes the tests, returns the amount of failed tests; >0: failure
-static inline size_t exec_tests(testdat *dat, size_t ntests) {
-	size_t i;
-	size_t err = 0;
-
-	// perform tests and count the error state
-	for (i = 0; i < ntests; i++) {
-		test_ctest = dat[i].name;
-		err += !!(dat[i].test(dat[i].args));
-	}
-
-	// give final score
-	if (!err)
-		fprintf(stdout, "tests completed! (%zu/%zu)\n", test_runs - err, test_runs);
-	else
-		fprintf(stderr, " tests failed! (%zu/%zu)\n", test_runs - err, test_runs);
-	return err;
-}
+#define assert_true(expr)  test_process((expr), __FILE__, __LINE__, __func__, #expr)
+#define assert_false(expr) assert_true(!(expr))

test/test_conf.c

@@ -0,0 +1,142 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#include "test_conf.h"
+
+#include <math.h>
+#include <string.h>
+
+#include "../src/types.h"
+#include "../src/util/conf.h"
+#include "test.h"
+
+void test_conf_procbuf(const char *restrict buf, const char *restrict expect_key, const char *restrict expect_val, int expect_return)
+{
+	usize len = strlen(buf) + 1;
+	char  k[len], v[len];
+	*k = '\0', *v = '\0';
+	(void)(assert_true(conf_procbuf(buf, k, v, len) == expect_return) &&
+		assert_true(!strcmp(k, expect_key)) &&
+		assert_true(!strcmp(v, expect_val)));
+}
+
+void test_conf_matchopt(struct conf_entry *opts, usize optc, const char *restrict key, int expect_index)
+{
+	usize idx = opts - conf_matchopt(opts, optc, key);
+	idx       = (ssize)idx < 0 ? -idx : idx;
+	int i     = idx < optc ? (int)idx : -1;
+	assert_true(i == expect_index);
+}
+
+void test_conf_procval_int(const char *val, u64 expect_value, int type)
+{
+	u8 out[sizeof(u64)] = {0};
+	assert_true(!conf_procval(&(struct conf_entry){NULL, out, type}, val));
+	assert_true(memcmp(out, &expect_value, sizeof(u64)) == 0);
+}
+
+void test_conf_procval_f32(const char *val, f32 expect_value)
+{
+	u8  out[4];
+	f32 result;
+	conf_procval(&(struct conf_entry){NULL, out, CONF_F32}, val);
+	memcpy(&result, out, 4);
+	assert_true(fabsf(expect_value - result) < 1e-9f);
+}
+
+void test_procval_str(void)
+{
+	char *out = NULL;
+	(void)(assert_true(!conf_procval(&(struct conf_entry){NULL, (void *)&out, CONF_STR}, "here comes the sowon")) &&
+		assert_false(strcmp("here comes the sowon", out)));
+	free(out);
+}
+
+void test_procval_str_predef(void)
+{
+	char *out = strdup("owo");
+	(void)(assert_true(!conf_procval(&(struct conf_entry){NULL, (void *)&out, CONF_STR}, "i leak if I don't free")) &&
+		assert_true(!strcmp("i leak if I don't free", out)));
+	free(out);
+}
+
+void test_procval_fstr(void)
+{
+	char             buf[16];
+	struct conf_fstr str = {sizeof(buf), buf};
+	(void)(assert_true(!conf_procval(&(struct conf_entry){NULL, &str, CONF_FSTR}, "hewwoo wowld")) &&
+		assert_true(!strcmp(str.out, "hewwoo wowld")));
+}
+
+void test_procval_fstr_trunc(void)
+{
+	char             buf[8];
+	struct conf_fstr str = {sizeof(buf), buf};
+	(void)(assert_true(!conf_procval(&(struct conf_entry){NULL, &str, CONF_FSTR}, "hewwooo wowld")) &&
+		assert_true(!strcmp(str.out, "hewwooo")));
+}
+
+void test_procval_eparse(void)
+{
+	i32 out;
+	assert_true(conf_procval(&(struct conf_entry){NULL, &out, CONF_I32}, "owo") == CONF_EPARSE);
+}
+
+void test_conf_getpat(void)
+{
+	char *path;
+#if defined(__linux__)
+	/* test without setting environment variables. */
+	unsetenv("XDG_CONFIG_HOME");
+	unsetenv("HOME");
+	path = conf_getpat("/mypath");
+	assert_true(path == NULL);
+	free(path);
+
+	/* test with setting HOME. */
+	setenv("HOME", "/home/test", 1);
+	path = conf_getpat("/mypath");
+	assert_true(path != NULL && strcmp(path, "/home/test/.config/mypath") == 0);
+	free(path);
+	conf_getpat("/mypath");
+
+	/* test with setting XDG_CONFIG_HOME. */
+	setenv("XDG_CONFIG_HOME", "/etc/xdg", 1);
+	path = conf_getpat("/mypath");
+	assert_true(path != NULL && strcmp(path, "/etc/xdg/mypath") == 0);
+	free(path);
+#elif defined(__APPLE__)
+	/* test without setting environment variables. */
+	unsetenv("HOME");
+	path = conf_getpat("/mypath");
+	assert_true(path == NULL);
+	free(path);
+
+	/* test with setting HOME. */
+	setenv("HOME", "/home/test", 1);
+	path = conf_getpat("/mypath");
+	assert_true(path != NULL && strcmp(path, "/home/test/Library/Application Support/mypath") == 0);
+	free(path);
+#elif defined(_WIN32) || defined(_WIN64) || defined(__CYGWIN__)
+	/* test without setting environment variables. */
+	_putenv("APPDATA=");
+	_putenv("USERPROFILE=");
+	path = conf_getpat("\\mypath");
+	assert_true(path == NULL);
+	free(path);
+
+	/* test with setting USERPROFILE */
+	_putenv("USERPROFILE=C:\\Users\\test");
+	path = conf_getpat("\\mypath");
+	assert_true(path != NULL && strcmp(path, "C:\\Users\\test\\AppData\\Roaming\\mypath") == 0);
+	free(path);
+
+	/* test with setting APPDATA */
+	_putenv("APPDATA=C:\\Users\\test\\AppData\\Roaming");
+	path = conf_getpat("\\mypath");
+	assert_true(path != NULL && strcmp(path, "C:\\Users\\test\\AppData\\Roaming\\mypath") == 0);
+	free(path);
+#else
+	assert_fail("unsupported operating system; no tests have been written.");
+#endif
+}

test/test_conf.h

@@ -0,0 +1,20 @@
+/* Copyright (c) 2025 Quinn.
+ * This is a file from the project MCA-Selector-Lite and is
+ * licensed under the MIT Licence. See the project's LICENSE file for details. */
+#pragma once
+
+#include "../src/types.h"
+#include "../src/util/conf.h"
+
+void test_conf_procbuf(const char *restrict buf, const char *restrict expect_key, const char *restrict expect_val, int expect_return);
+void test_conf_matchopt(struct conf_entry *restrict opts, usize optc, const char *restrict key, int expect_index);
+void test_conf_procval_int(const char *val, u64 expect_value, int type);
+void test_conf_procval_f32(const char *val, f32 expect_value);
+void test_conf_procval_fstr(const char *val, u64 expect_value, int type);
+void test_conf_procval_str(const char *val, u64 expect_value, int type);
+void test_procval_str(void);
+void test_procval_str_predef(void);
+void test_procval_fstr(void);
+void test_procval_fstr_trunc(void);
+void test_procval_eparse(void);
+void test_conf_getpat(void);