khallaandClaude Opus 5.5
ed3163d312
New mods/hud: while a HUD window renders, screen-space vertices passed to D3D7 DrawPrimitive/DrawIndexedPrimitive are shifted by dx; while it handles an event, the UI event point (category 5, +0x48) is shifted by -dx. Applied to cUI_Taskbar2 (centred) and cUI_Mercenary (portrait + health, right edge). 3D belt items line up without help (their projection is screen-centred). re::AttachRuntimeHook hooks functions only known at runtime (COM methods). Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
81 lines
2.2 KiB
C++
81 lines
2.2 KiB
C++
#include "re/hook.h"
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#include <vector>
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#include <windows.h>
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#include <detours.h>
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#include "re/config.h"
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#include "re/log.h"
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namespace re {
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namespace {
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struct HookDef {
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const char* name;
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uint32_t address;
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void** original;
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void* replacement;
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};
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// Function-local static: registrations run during static initialisation, in
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// unspecified order across translation units.
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std::vector<HookDef>& Registry() {
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static std::vector<HookDef> hooks;
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return hooks;
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}
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} // namespace
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HookRegistration::HookRegistration(const char* name, uint32_t address, void** original, void* replacement) {
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Registry().push_back({name, address, original, replacement});
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}
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int InstallHooks() {
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int failed = 0;
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int installed = 0;
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for (const HookDef& hook : Registry()) {
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if (!ConfigInt("hooks", hook.name, 1)) {
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Log("hook %-24s 0x%08x disabled by config", hook.name, hook.address);
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continue;
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}
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// One transaction per hook, so a bad hook does not take the others down.
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DetourTransactionBegin();
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DetourUpdateThread(GetCurrentThread());
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LONG error = DetourAttach(hook.original, hook.replacement);
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if (error == NO_ERROR) {
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error = DetourTransactionCommit();
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} else {
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DetourTransactionAbort();
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}
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if (error == NO_ERROR) {
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++installed;
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} else {
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++failed;
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Log("hook %-24s 0x%08x FAILED (error %ld)", hook.name, hook.address, error);
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}
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}
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Log("%d hook(s) installed, %d failed", installed, failed);
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return failed;
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}
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bool AttachRuntimeHook(const char* name, void** original, void* replacement) {
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const void* target = *original;
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DetourTransactionBegin();
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DetourUpdateThread(GetCurrentThread());
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LONG error = DetourAttach(original, replacement);
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if (error == NO_ERROR) {
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error = DetourTransactionCommit();
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} else {
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DetourTransactionAbort();
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}
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if (error != NO_ERROR) {
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Log("hook %-24s %p FAILED (error %ld)", name, target, error);
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return false;
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}
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Log("hook %-24s %p attached at runtime", name, target);
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return true;
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}
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} // namespace re
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