V40: add isolated attached-model test build

.github/workflows/test-v34-exitfix-baseline.yml

@@ -1,54 +0,0 @@
-name: V34 ExitFix Baseline
-
-on:
-  push:
-    branches:
-      - test/v34-exitfix-baseline
-  workflow_dispatch:
-
-permissions:
-  contents: read
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: mlugg/setup-zig@v2
-        with:
-          version: '0.16.0'
-
-      - name: Build
-        shell: bash
-        run: |
-          set -euo pipefail
-          zig build all-variants -Doptimize=ReleaseSmall \
-            -Dweirdperformance=false \
-            -Doutline=true \
-            -Dcustomassets=true \
-            -Dtransmogfix=true
-
-      - name: Package
-        shell: bash
-        run: |
-          set -euo pipefail
-          rm -rf package dist
-          mkdir -p package/DLL package/Interface/AddOns/WeirdUtils_Outline dist
-          cp zig-out/variants/outline.dll package/DLL/outline.dll
-          cp src/outline/addon/Bindings.xml package/Interface/AddOns/WeirdUtils_Outline/
-          cp src/outline/addon/Outline.lua package/Interface/AddOns/WeirdUtils_Outline/
-          cp src/outline/addon/WeirdUtils_Outline.toc package/Interface/AddOns/WeirdUtils_Outline/
-          printf '%s\n' \
-            'V34 stable + process-exit safety only.' \
-            'Runtime Outline code is otherwise identical to stable/outline-v34-autofix.' \
-            'main is untouched.' \
-            'WeirdPerformance is disabled in this standalone build and not modified.' \
-            > package/README_TEST.txt
-          (cd package && sha256sum DLL/outline.dll > SHA256SUMS.txt && zip -r ../dist/WeirdUtils_V34_EXITFIX_BASELINE.zip DLL Interface README_TEST.txt SHA256SUMS.txt)
-
-      - uses: actions/upload-artifact@v4
-        with:
-          name: WeirdUtils-V34-EXITFIX-BASELINE
-          path: dist/WeirdUtils_V34_EXITFIX_BASELINE.zip
-          if-no-files-found: error

.github/workflows/test-v40-attached-model-outline.yml

@@ -0,0 +1,73 @@
+name: V40 Attached Model Outline Test
+
+on:
+  push:
+    branches:
+      - test/v40-attached-model-outline
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  build-v40:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout V40 branch
+        uses: actions/checkout@v4
+
+      - name: Install Zig
+        uses: mlugg/setup-zig@v2
+        with:
+          version: '0.16.0'
+
+      - name: Build standalone variants
+        shell: bash
+        run: |
+          set -euo pipefail
+          zig build all-variants -Doptimize=ReleaseSmall \
+            -Dweirdperformance=false \
+            -Doutline=true \
+            -Dcustomassets=true \
+            -Dtransmogfix=true
+
+      - name: Assemble V40 outline-only test package
+        shell: bash
+        run: |
+          set -euo pipefail
+          rm -rf package dist
+          mkdir -p package/DLL
+          mkdir -p package/Interface/AddOns/WeirdUtils_Outline
+          mkdir -p dist
+
+          cp zig-out/variants/outline.dll package/DLL/outline.dll
+          cp src/outline/addon/Bindings.xml package/Interface/AddOns/WeirdUtils_Outline/Bindings.xml
+          cp src/outline/addon/Outline.lua package/Interface/AddOns/WeirdUtils_Outline/Outline.lua
+          cp src/outline/addon/WeirdUtils_Outline.toc package/Interface/AddOns/WeirdUtils_Outline/WeirdUtils_Outline.toc
+
+          printf '%s\n' \
+            'WeirdUtils V40 Attached Model Outline' \
+            'Base: exact V38 Retail Polish + AutoTarget + AutoRehook + ExitFix.' \
+            'main is untouched.' \
+            'WeirdPerformance is disabled in this standalone build and not modified.' \
+            'Engine-proven WoW 1.12.1 attachment layout from 0x712F70:' \
+            '- child +0x1CC = parent/root CM2Model' \
+            '- child +0x1D0 = attachment id' \
+            '- root +0x1DC = child-list head' \
+            '- child +0x1E4 = next sibling' \
+            'V40 makes direct attached M2 models inherit the root target outline.' \
+            'No new hook, no linked-list traversal, no game-memory writes.' \
+            > package/README_TEST.txt
+
+          (
+            cd package
+            sha256sum DLL/outline.dll > SHA256SUMS.txt
+            zip -r ../dist/WeirdUtils_V40_ATTACHED_MODEL_OUTLINE.zip DLL Interface README_TEST.txt SHA256SUMS.txt
+          )
+
+      - name: Upload V40 package
+        uses: actions/upload-artifact@v4
+        with:
+          name: WeirdUtils-V40-ATTACHED-MODEL-OUTLINE
+          path: dist/WeirdUtils_V40_ATTACHED_MODEL_OUTLINE.zip
+          if-no-files-found: error

src/main.zig

@@ -1053,10 +1053,10 @@ pub export fn DllMain(
     switch (reason) {
         1 => install(),
         0 => {
-            // Process-exit safety: when Windows is terminating the whole
-            // process, do not call heavy cleanup from DLL_PROCESS_DETACH.
-            // Resources are reclaimed by the OS. Explicit FreeLibrary still
-            // performs the normal uninstall path.
+            // ExitFix: when lpReserved is non-null, Windows is terminating the
+            // whole process. Do not call into D3D9/COM or other DLLs from
+            // DLL_PROCESS_DETACH during global teardown; the OS will reclaim
+            // those resources. Keep full uninstall for explicit FreeLibrary.
             if (reserved == null) uninstall();
         },
         else => {},

src/outline/addon/Outline.lua

@@ -1,7 +1,7 @@
 -- Outline addon (embedded in DLL, loaded from memory)
 -- Part of WeirdUtils - only loaded when outline module is compiled
 
-OUTLINE_VERSION = 1
+OUTLINE_VERSION = 40
 
 BINDING_HEADER_OUTLINE = "Outline"
 

src/outline/d3d9_hook.zig

@@ -57,6 +57,14 @@ var orig_reset: usize = 0;
 var d3d9_vtable: ?[*]usize = null;
 var hooks_installed: bool = false;
 
+/// ExitFix: once shutdown begins, no code path may reinstall D3D9 hooks.
+var shutdown_started: bool = false;
+
+pub fn beginShutdown() void {
+    shutdown_started = true;
+}
+
+
 // Sticky diagnostics for the in-game OutlineDebug() command.
 pub var debug_endscene_seen: bool = false;
 pub var debug_dip_seen: bool = false;
@@ -114,6 +122,7 @@ pub var debug_late_rehook_succeeded: bool = false;
 /// If the current entries are no longer ours, chain whatever is there now as
 /// the new originals, then patch the three entries again.
 pub fn lateRehookIfLost() bool {
+    if (shutdown_started) return false;
     debug_late_rehook_attempted = true;
 
     const cur = getD3D9VTable() orelse return false;
@@ -732,34 +741,45 @@ const jfa_prop_src =
     "mov oC0.xy, r8.xy\n" ++
     "mov oC0.zw, c1.xx\n";
 
-/// V32 POLISH: hard 3px outline, no feather.
-/// c0 = (screen_width, screen_height, radius_px=3, 0).
-/// The shader squares radius_px and emits a binary 0/1 edge alpha.
+/// V38 RETAIL-POLISH: keep the proven V34/V36/V37 JFA and refine only
+/// the final alpha profile. Still only two texture reads.
+/// c0 = (screen_width, screen_height, core_radius_px, halo_radius_px).
 const jfa_decode_src =
     "ps_3_0\n" ++
-    "def c1, 0.0, 1.0, -0.002, 0.0\n" ++
+    // c1 = zero, one, halo alpha, -interior threshold
+    "def c1, 0.0, 1.0, 0.17, -0.002\n" ++
+    // pale Retail-like yellow-green
+    "def c2, 1.0, 0.96, 0.62, 0.0\n" ++
+    // core alpha
+    "def c3, 0.84, 0.0, 0.0, 0.0\n" ++
     "dcl_2d s0\n" ++
     "dcl_2d s1\n" ++
     "dcl_texcoord0 v0\n" ++
-    // Nearest seed and pixel-space squared distance.
+    // Nearest JFA seed and pixel-space squared distance.
     "texld r0, v0, s0\n" ++
     "sub r1.xy, v0.xy, r0.xy\n" ++
     "mul r1.xy, r1.xy, c0.xy\n" ++
-    "dp2add r1.z, r1, r1, c0.w\n" ++
-    // Seed colour.
-    "texld r2, r0, s1\n" ++
-    // Hard radius test: dist² < radius² => alpha 1, otherwise 0.
-    "mov r3.x, c0.z\n" ++
-    "mul r3.x, r3.x, r3.x\n" ++
-    "sub r3.y, r1.z, r3.x\n" ++
-    "mov r6.w, c1.y\n" ++
-    "cmp r4.w, r3.y, c0.w, r6.w\n" ++
-    // Do not paint over the model interior.
+    "dp2add r1.z, r1, r1, c1.x\n" ++
+    // Squared core and halo radii.
+    "mul r3.x, c0.z, c0.z\n" ++
+    "mul r3.y, c0.w, c0.w\n" ++
+    // Smooth halo factor = saturate((halo² - dist²) / (halo² - core²)).
+    "sub r3.z, r3.y, r3.x\n" ++
+    "rcp r3.z, r3.z\n" ++
+    "sub r4.x, r3.y, r1.z\n" ++
+    "mul r4.x, r4.x, r3.z\n" ++
+    "max r4.x, r4.x, c1.x\n" ++
+    "min r4.x, r4.x, c1.y\n" ++
+    "mul r6.w, r4.x, c1.z\n" ++
+    // Solid-but-soft core inside the inner radius.
+    "sub r4.y, r1.z, r3.x\n" ++
+    "cmp r6.w, r4.y, r6.w, c3.x\n" ++
+    // Never paint over the original model interior.
     "texld r5, v0, s1\n" ++
-    "add r5.x, r5.a, c1.z\n" ++
-    "cmp r4.w, r5.x, c0.w, r4.w\n" ++
-    "mov r4.xyz, r2.xyz\n" ++
-    "mov oC0, r4\n";
+    "add r5.x, r5.a, c1.w\n" ++
+    "cmp r6.w, r5.x, c1.x, r6.w\n" ++
+    "mov r6.xyz, c2.xyz\n" ++
+    "mov oC0, r6\n";
 
 /// Debug: composite silhouette RT directly. Forces alpha to 1.0 where silhouette
 /// has any content (alpha >= 0.002), 0.0 elsewhere. Bypasses JFA entirely.
@@ -1417,8 +1437,8 @@ fn runJfaPipeline(device: *anyopaque) void {
         if (saved_rt0) |rt| deviceSetRenderTarget(device, 0, rt);
         deviceSetTexture(device, 0, rt_jfa_a_tex);
         deviceSetTexture(device, 1, rt_silhouette_tex);
-        // V34: hard 3px edge unchanged; JFA seed precision is now full-float.
-        c0 = [4]f32{ fw, fh, 3.0, 0.0 };
+        // V38: slightly stronger 1.5px core with a subtler 3.1px falloff.
+        c0 = [4]f32{ fw, fh, 1.50, 3.10 };
         deviceSetPSConstF(device, 0, &c0);
         deviceSetPtr(device, types.VT.SetPixelShader, jfa_decode_ps.?);
         deviceSetRS(device, types.D3DRS.ALPHABLENDENABLE, 1);
@@ -1626,6 +1646,7 @@ fn getD3D9VTable() ?[*]usize {
 
 pub fn installHooks() bool {
     if (hooks_installed) return true;
+    if (shutdown_started) return false;
 
     const vtable_ptr = getD3D9VTable() orelse return false;
     d3d9_vtable = vtable_ptr;

src/outline/model_hook.zig

@@ -113,7 +113,7 @@ fn renderDrawDetour(this: u32, view_matrix: u32, batch_data: u32, batch_indices:
         const idx_u: u32 = @bitCast(indices[i]);
         const model_ptr = hook.readMem(u32, batch_data +% idx_u *% 0x40 +% 4);
         if (model_ptr != 0) {
-            if (tracker.findOutlineEntry(model_ptr) != null) {
+            if (tracker.findOutlineEntryIncludingAttachment(model_ptr) != null) {
                 outline_count += 1;
             } else if (tracker.isGameObjectModel(model_ptr)) {
                 game_obj_count += 1;
@@ -137,7 +137,7 @@ fn renderDrawDetour(this: u32, view_matrix: u32, batch_data: u32, batch_indices:
         const batch_idx = indices[i];
         const idx_u: u32 = @bitCast(batch_idx);
         const model_ptr = hook.readMem(u32, batch_data +% idx_u *% 0x40 +% 4);
-        if (model_ptr != 0 and tracker.findOutlineEntry(model_ptr) != null) {
+        if (model_ptr != 0 and tracker.findOutlineEntryIncludingAttachment(model_ptr) != null) {
             reordered_indices[outline_pos] = batch_idx;
             outline_pos += 1;
         } else if (model_ptr != 0 and tracker.isGameObjectModel(model_ptr)) {
@@ -193,7 +193,7 @@ fn drawBatchProjDetour(ctx: u32) callconv(hook.cc.thiscall) void {
     else
         0;
 
-    const entry = if (model_ptr != 0) tracker.findOutlineEntry(model_ptr) else null;
+    const entry = if (model_ptr != 0) tracker.findOutlineEntryIncludingAttachment(model_ptr) else null;
 
     if (entry != null) {
         // This batch is an outline target - signal the DIP hook

src/outline/offsets.zig

@@ -12,6 +12,15 @@ pub const MODEL_OWNER_DIRECT: usize = 0x28;
 /// model + this → render callback owner pointer (set by SetRenderCallbacks).
 pub const MODEL_OWNER_CALLBACK: usize = 0x3C0;
 
+/// V40: parent/root CM2Model for an attached model.
+/// Proven from WoW 1.12.1 build 5875 function 0x712F70:
+/// child+0x1CC = root, child+0x1D0 = attachment id,
+/// root+0x1DC = child-list head, child+0x1E4 = next sibling.
+pub const MODEL_ATTACHMENT_PARENT: usize = 0x1CC;
+pub const MODEL_ATTACHMENT_ID: usize = 0x1D0;
+pub const MODEL_CHILD_HEAD: usize = 0x1DC;
+pub const MODEL_NEXT_SIBLING: usize = 0x1E4;
+
 // =============================================================================
 // Render context
 // =============================================================================

src/outline/outline.zig

@@ -109,8 +109,11 @@ pub fn initD3D9Deferred() void {
 /// Remove all outline hooks. Called during DLL_PROCESS_DETACH.
 pub fn cleanup() void {
     if (g_is_hook_owner) {
-        d3d9_hook.removeHooks();
+        // ExitFix: stop any future self-heal first, then detach the model hooks
+        // that can call lateRehookIfLost(), and only then tear down D3D9.
+        d3d9_hook.beginShutdown();
         model_hook.removeHooks();
+        d3d9_hook.removeHooks();
         log.close();
         mod_mutex.release(&g_mutex);
     }

src/outline/tracker.zig

@@ -79,6 +79,19 @@ pub fn findOutlineEntry(model_ptr: u32) ?*const types.OutlineEntry {
     return null;
 }
 
+/// V40: resolve a live attached M2 to the already-tracked root model.
+/// 0x712F70 writes the root CM2Model pointer directly to child+0x1CC.
+/// We only read that fixed field and compare the value; the parent pointer is
+/// never dereferenced here.
+pub fn findOutlineEntryIncludingAttachment(model_ptr: u32) ?*const types.OutlineEntry {
+    if (findOutlineEntry(model_ptr)) |entry| return entry;
+    if (model_ptr == 0) return null;
+
+    const parent = hook.readMem(u32, model_ptr + o.MODEL_ATTACHMENT_PARENT);
+    if (parent == 0 or parent == model_ptr) return null;
+    return findOutlineEntry(parent);
+}
+
 /// Check if any outline targets are tracked this frame.
 pub fn hasTargets() bool {
     return tracked_obj_count > 0;
@@ -86,7 +99,7 @@ pub fn hasTargets() bool {
 
 /// Get the outline colour for a model, or null if not tracked.
 pub fn getModelColor(model_ptr: u32) ?u32 {
-    const entry = findOutlineEntry(model_ptr) orelse return null;
+    const entry = findOutlineEntryIncludingAttachment(model_ptr) orelse return null;
     return switch (entry.category) {
         .target => types.COLOR_TARGET,
         .raid_marked => if (entry.raid_mark > 0 and entry.raid_mark <= 8)
@@ -100,7 +113,7 @@ pub fn getModelColor(model_ptr: u32) ?u32 {
 
 /// Get the outline category for a model.
 pub fn getModelCategory(model_ptr: u32) types.ModelCategory {
-    const entry = findOutlineEntry(model_ptr) orelse return .none;
+    const entry = findOutlineEntryIncludingAttachment(model_ptr) orelse return .none;
     return entry.category;
 }
 
@@ -136,6 +149,7 @@ pub fn classifyModel(model_ptr: u32) void {
     // Read the model's back-pointers to its owning game object.
     const owner_direct = hook.readMem(u32, model_ptr + o.MODEL_OWNER_DIRECT);
     const owner_callback = hook.readMem(u32, model_ptr + o.MODEL_OWNER_CALLBACK);
+    const attachment_parent = hook.readMem(u32, model_ptr + o.MODEL_ATTACHMENT_PARENT);
 
     // Match against tracked outline objects (target, raid marks, dead players).
     if (tracked_obj_count > 0 and frame_outline_count < MAX_OUTLINE_MODELS) {
@@ -149,6 +163,16 @@ pub fn classifyModel(model_ptr: u32) void {
         }
     }
 
+    // V40: attached weapons, shields and other M2 children inherit the
+    // selected root's outline. This is only a value comparison; no traversal.
+    if (attachment_parent != 0 and attachment_parent != model_ptr and
+        findOutlineEntry(model_ptr) == null and frame_outline_count < MAX_OUTLINE_MODELS)
+    {
+        if (findOutlineEntry(attachment_parent)) |parent_entry| {
+            addOutlineEntry(model_ptr, parent_entry.category, parent_entry.raid_mark);
+        }
+    }
+
     // Match against game object pointers (for render ordering).
     if (game_obj_ptr_count > 0 and game_obj_model_count < MAX_GAME_OBJ_MODELS) {
         for (game_obj_ptrs[0..game_obj_ptr_count]) |go_ptr| {