[core] Fix renderdoc API garbage (#3816)

Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3816

src/core/tools/renderdoc.cpp

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
@@ -51,10 +51,12 @@ void RenderdocAPI::ToggleCapture() {
     if (!rdoc_api) [[unlikely]] {
         return;
     }
+
+    auto* api = static_cast<RENDERDOC_API_1_6_0*>(rdoc_api);
     if (!is_capturing) {
-        rdoc_api->StartFrameCapture(NULL, NULL);
+        api->StartFrameCapture(NULL, NULL);
     } else {
-        rdoc_api->EndFrameCapture(NULL, NULL);
+        api->EndFrameCapture(NULL, NULL);
     }
     is_capturing = !is_capturing;
 }

src/core/tools/renderdoc.h

@@ -6,8 +6,6 @@
 
 #pragma once
 
-struct RENDERDOC_API_1_7_0;
-
 namespace Tools {
 
 class RenderdocAPI {
@@ -18,7 +16,7 @@ public:
     void ToggleCapture();
 
 private:
-    RENDERDOC_API_1_7_0* rdoc_api{};
+    void* rdoc_api{};
     bool is_capturing{false};
 };