Ports: Add mGBA

Author: https://github.com/Lubrsi
Commit: https://github.com/SerenityOS/serenity/commit/a9a90b1b58
Pull-request: https://github.com/SerenityOS/serenity/pull/13659
Reviewed-by: https://github.com/linusg

Ports/AvailablePorts.md

@@ -132,6 +132,7 @@ Please make sure to keep this list up to date when adding and updating ports. :^
 | [`mawk`](mawk/)                        | mawk                                                            | 1.3.4-20200120           | https://invisible-island.net/mawk/                                             |
 | [`mbedtls`](mbedtls/)                  | Mbed TLS                                                        | 2.16.2                   | https://tls.mbed.org/                                                          |
 | [`mc`](mc/)                            | Midnight Commander                                              | 4.8.27                   | http://midnight-commander.org/                                                 |
+| [`mgba`](mgba/)                        | Game Boy, Game Boy Color and Game Boy Advance emulator          | 0.9.3                    | https://mgba.io/                                                               |
 | [`milkytracker`](milkytracker/)        | milkytracker                                                    | 1.03.00                  | https://github.com/milkytracker/MilkyTracker                                   |
 | [`mold`](mold/)                        | A Modern Linker                                                 | 1.0.2                    | https://github.com/rui314/mold                                                 |
 | [`mpc`](mpc/)                          | GNU Multiple Precision Complex Library (MPC)                    | 1.2.1                    | http://www.multiprecision.org/mpc/                                             |

Ports/mgba/package.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env -S bash ../.port_include.sh
+port=mgba
+version=0.9.3
+files="https://github.com/mgba-emu/mgba/archive/refs/tags/${version}.tar.gz mgba-${version}.tar.gz 692ff0ac50e18380df0ff3ee83071f9926715200d0dceedd9d16a028a59537a0"
+auth_type=sha256
+configopts=("-DCMAKE_TOOLCHAIN_FILE=${SERENITY_BUILD_DIR}/CMakeToolchain.txt")
+useconfigure=true
+depends=("SDL2" "zlib" "sqlite" "libpng" "libzip")
+
+configure() {
+    run cmake "${configopts[@]}"
+}
+
+install() {
+    run make install
+}

Ports/mgba/patches/ReadMe.md

@@ -0,0 +1,23 @@
+# Patches for mGBA on SerenityOS
+
+## `serenity-does-not-support-futimens-or-futimes.patch`
+
+We do not currently support futimens or futimes. [futimens is a POSIX function,](https://pubs.opengroup.org/onlinepubs/9699919799/)
+so this is an issue on our side.
+
+### Status
+- [ ] Local?
+- [ ] Should be merged to upstream?
+- [X] Resolves issue(s) with our side of things
+- [ ] Hack
+
+## `use-sdl-software-renderer-with-no-vsync.patch`
+
+This makes us use the SDL software renderer with no vsync, as our SDL2 port does not currently support accelerated rendering
+or vsync.
+
+### Status
+- [ ] Local?
+- [ ] Should be merged to upstream?
+- [X] Resolves issue(s) with our side of things
+- [ ] Hack

Ports/mgba/patches/serenity-does-not-support-futimens-or-futimes.patch

@@ -0,0 +1,14 @@
+--- mgba-0.9.3/src/util/vfs/vfs-fd.c	2021-12-18 01:56:32.000000000 +0000
++++ mgba-0.9.3.serenity/src/util/vfs/vfs-fd.c	2022-04-13 02:50:08.792765951 +0100
+@@ -200,11 +200,6 @@
+ 	UNUSED(size);
+ 	struct VFileFD* vfd = (struct VFileFD*) vf;
+ #ifndef _WIN32
+-#ifdef __HAIKU__
+-	futimens(vfd->fd, NULL);
+-#else
+-	futimes(vfd->fd, NULL);
+-#endif
+ 	if (buffer && size) {
+ 		return msync(buffer, size, MS_ASYNC) == 0;
+ 	}

Ports/mgba/patches/use-sdl-software-renderer-with-no-vsync.patch

@@ -0,0 +1,11 @@
+--- mgba-0.9.3/src/platform/sdl/sw-sdl2.c	2021-12-18 01:56:32.000000000 +0000
++++ mgba-0.9.3.serenity/src/platform/sdl/sw-sdl2.c	2022-04-13 02:50:08.760766286 +0100
+@@ -25,7 +25,7 @@
+ 	renderer->window = SDL_CreateWindow(projectName, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, renderer->viewportWidth, renderer->viewportHeight, SDL_WINDOW_OPENGL | (SDL_WINDOW_FULLSCREEN_DESKTOP * renderer->player.fullscreen));
+ 	SDL_GetWindowSize(renderer->window, &renderer->viewportWidth, &renderer->viewportHeight);
+ 	renderer->player.window = renderer->window;
+-	renderer->sdlRenderer = SDL_CreateRenderer(renderer->window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
++	renderer->sdlRenderer = SDL_CreateRenderer(renderer->window, -1, SDL_RENDERER_SOFTWARE);
+ #ifdef COLOR_16_BIT
+ #ifdef COLOR_5_6_5
+ 	renderer->sdlTex = SDL_CreateTexture(renderer->sdlRenderer, SDL_PIXELFORMAT_RGB565, SDL_TEXTUREACCESS_STREAMING, width, height);