From 3e91ac239332708652c431dc45a202d84bc5f67a Mon Sep 17 00:00:00 2001
From: Tau <tau@nowhere>
Date: Tue, 14 May 2019 18:03:25 -0400
Subject: [PATCH] platform/amvideo.c: Add virtual amvideo.dll hook

---
 platform/amvideo.c   | 75 ++++++++++++++++++++++++++++++++++++++++++++
 platform/amvideo.h   |  5 +++
 platform/meson.build |  2 ++
 3 files changed, 82 insertions(+)
 create mode 100644 platform/amvideo.c
 create mode 100644 platform/amvideo.h

diff --git a/platform/amvideo.c b/platform/amvideo.c
new file mode 100644
index 0000000..fa076cf
--- /dev/null
+++ b/platform/amvideo.c
@@ -0,0 +1,75 @@
+#include <windows.h>
+
+#include <string.h>
+#include <stdlib.h>
+
+#include "hook/table.h"
+
+#include "hooklib/dll.h"
+
+#include "util/dprintf.h"
+
+/* Hook functions */
+
+static int amDllVideoOpen(void *ctx);
+static int amDllVideoClose(void *ctx);
+static int amDllVideoSetResolution(void *ctx, void *param);
+static int amDllVideoGetVBiosVersion(void *ctx, char *dest, size_t nchars);
+
+static const struct hook_symbol amvideo_syms[] = {
+    {
+        .ordinal    = 1,
+        .name       = "amDllVideoOpen",
+        .patch      = amDllVideoOpen,
+    }, {
+        .ordinal    = 2,
+        .name       = "amDllVideoClose",
+        .patch      = amDllVideoClose,
+    }, {
+        .ordinal    = 3,
+        .name       = "amDllVideoSetResolution",
+        .patch      = amDllVideoSetResolution,
+    }, {
+        .ordinal    = 4,
+        .name       = "amDllVideoGetVBiosVersion",
+        .patch      = amDllVideoGetVBiosVersion,
+    }
+};
+
+HRESULT amvideo_hook_init(HMODULE redir_mod)
+{
+    return dll_hook_push(
+            redir_mod,
+            L"$amvideo",
+            amvideo_syms,
+            _countof(amvideo_syms));
+}
+
+static int amDllVideoOpen(void *ctx)
+{
+    dprintf("AmVideo: %s(%p)\n", __func__, ctx);
+
+    return 0;
+}
+
+static int amDllVideoClose(void *ctx)
+{
+    dprintf("AmVideo: %s(%p)\n", __func__, ctx);
+
+    return 0;
+}
+
+static int amDllVideoSetResolution(void *ctx, void *param)
+{
+    dprintf("AmVideo: %s(%p, %p)\n", __func__, ctx, param);
+
+    return 0;
+}
+
+static int amDllVideoGetVBiosVersion(void *ctx, char *dest, size_t nchars)
+{
+    dprintf("AmVideo: %s(%p, %p, %i)\n", __func__, ctx, dest, (int) nchars);
+    strcpy(dest, "01.02.03.04.05");
+
+    return 0;
+}
diff --git a/platform/amvideo.h b/platform/amvideo.h
new file mode 100644
index 0000000..d81fc82
--- /dev/null
+++ b/platform/amvideo.h
@@ -0,0 +1,5 @@
+#pragma once
+
+#include <windows.h>
+
+HRESULT amvideo_hook_init(HMODULE redir_mod);
diff --git a/platform/meson.build b/platform/meson.build
index 91f5b85..e6e55f7 100644
--- a/platform/meson.build
+++ b/platform/meson.build
@@ -7,6 +7,8 @@ platform_lib = static_library(
         capnhook.get_variable('hook_dep'),
     ],
     sources : [
+        'amvideo.c',
+        'amvideo.h',
         'hwmon.c',
         'hwmon.h',
         'pcbid.c',