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https://github.com/PodeCaradox/GalaxyQuest-SteamFrame.git
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bigmak94andClaude Opus 5.5
bd9bded792
A native port built on the Petari decompilation (previous commit): an HLE platform layer (OS, DVD, GX, audio, input, NAND) under the game's own code, an OpenXR presentation (a diorama around the player, a giant screen, the HUD and settings as compositor layers, SpaceWarp, dynamic resolution), Touch Plus controls, the tools that convert your own game files (tools/cook, which also takes the few pieces of data the game's executable holds from your sys/main.dol), and the port's changes to the decompilation (`git diff petari-base -- decomp`). README.md explains installing and building, docs/TECHNICAL.md how it works. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
41 lines
1.6 KiB
C
41 lines
1.6 KiB
C
// libreserve.so: preloaded into the app process by wrap.sh.
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//
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// A zygote-forked app process already has ART's large object space and JIT
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// cache at ~0x77000000-0x9F000000, right across MEM1, MEM2 and the libgame.so
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// slot, so the launcher cannot reserve the game's address window there.
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// wrap.sh makes Android exec the app process instead of forking it from the
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// zygote, and this constructor runs before app_process starts ART, so ART
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// lays out its heap around the window. launcher.c then finds the window
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// already reserved.
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#include <android/log.h>
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#include <errno.h>
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#include <stdint.h>
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#include <sys/mman.h>
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#include <sys/prctl.h>
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#ifndef MAP_FIXED_NOREPLACE
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#define MAP_FIXED_NOREPLACE 0x100000
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#endif
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#ifndef PR_SET_VMA
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#define PR_SET_VMA 0x53564d41
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#define PR_SET_VMA_ANON_NAME 0
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#endif
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// Same window as launcher.c.
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static const uintptr_t kWindowBase = 0x80000000u;
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static const size_t kWindowSize = 0x60010000u;
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__attribute__((constructor)) static void reserveGameWindow(void) {
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void* win = mmap((void*)kWindowBase, kWindowSize, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE | MAP_FIXED_NOREPLACE, -1, 0);
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if (win != (void*)kWindowBase) {
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__android_log_print(ANDROID_LOG_ERROR, "PetariVR", "libreserve: cannot reserve the game address window at %p (got %p, errno %d)",
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(void*)kWindowBase, win, errno);
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if (win != MAP_FAILED) {
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munmap(win, kWindowSize);
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}
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return;
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}
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// Shows up as [anon:petari game window] in /proc/<pid>/maps.
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prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, kWindowBase, kWindowSize, "petari game window");
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}
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