From 9ced91af14c6f627d58341f5bd01cacf2ea890d5 Mon Sep 17 00:00:00 2001
From: FunkyFr3sh <cc.red.alert.1@googlemail.com>
Date: Mon, 27 May 2024 01:15:30 +0200
Subject: [PATCH] add experimental wing32 hooks

---
 inc/winapi_hooks.h |  6 ++++++
 src/hook.c         | 10 ++++++++++
 src/winapi_hooks.c | 43 +++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 59 insertions(+)

diff --git a/inc/winapi_hooks.h b/inc/winapi_hooks.h
index d7e6efe..3608cc2 100644
--- a/inc/winapi_hooks.h
+++ b/inc/winapi_hooks.h
@@ -40,6 +40,12 @@ int WINAPI fake_GetDeviceCaps(HDC hdc, int index);
 BOOL WINAPI fake_StretchBlt(
     HDC hdcDest, int xDest, int yDest, int wDest, int hDest, HDC hdcSrc, int xSrc, int ySrc, int wSrc, int hSrc, DWORD rop);
 
+BOOL WINAPI fake_WinGStretchBlt(
+    HDC hdcDest, int xDest, int yDest, int wDest, int hDest, HDC hdcSrc, int xSrc, int ySrc, int wSrc, int hSrc);
+
+BOOL WINAPI fake_WinGBitBlt(
+    HDC hdc, int x, int y, int cx, int cy, HDC hdcSrc, int x1, int y1);
+
 BOOL WINAPI fake_BitBlt(
     HDC hdc, int x, int y, int cx, int cy, HDC hdcSrc, int x1, int y1, DWORD rop);
 
diff --git a/src/hook.c b/src/hook.c
index 1b2efb3..b6653a8 100644
--- a/src/hook.c
+++ b/src/hook.c
@@ -138,6 +138,16 @@ HOOKLIST g_hook_hooklist[] =
             { "", NULL, NULL, 0 }
         }
     },
+    /*
+    {
+        "WING32.DLL",
+        {
+            { "WinGBitBlt", (PROC)fake_WinGBitBlt, NULL, HOOK_SKIP_2 },
+            { "WinGStretchBlt", (PROC)fake_WinGStretchBlt, NULL, HOOK_SKIP_2 },
+            { "", NULL, NULL, 0 }
+        }
+    },
+    */
     {
         "kernel32.dll",
         {
diff --git a/src/winapi_hooks.c b/src/winapi_hooks.c
index c530b43..33399ac 100644
--- a/src/winapi_hooks.c
+++ b/src/winapi_hooks.c
@@ -823,6 +823,21 @@ BOOL WINAPI fake_StretchBlt(
     return real_StretchBlt(hdcDest, xDest, yDest, wDest, hDest, hdcSrc, xSrc, ySrc, wSrc, hSrc, rop);
 }
 
+BOOL WINAPI fake_WinGStretchBlt(
+    HDC hdcDest,
+    int xDest,
+    int yDest,
+    int wDest,
+    int hDest,
+    HDC hdcSrc,
+    int xSrc,
+    int ySrc,
+    int wSrc,
+    int hSrc)
+{
+    return fake_StretchBlt(hdcDest, xDest, yDest, wDest, hDest, hdcSrc, xSrc, ySrc, wSrc, hSrc, SRCCOPY);
+}
+
 BOOL WINAPI fake_BitBlt(
     HDC hdc, 
     int x, 
@@ -860,11 +875,39 @@ BOOL WINAPI fake_BitBlt(
                 return result;
             }
         }
+        else if (g_ddraw.width > 0 && g_ddraw.render.hdc)
+        {
+            return real_StretchBlt(
+                g_ddraw.render.hdc,
+                x + g_ddraw.render.viewport.x,
+                y + g_ddraw.render.viewport.y,
+                (int)(cx * g_ddraw.render.scale_w),
+                (int)(cy * g_ddraw.render.scale_h),
+                hdcSrc,
+                x1,
+                y1,
+                cx,
+                cy,
+                rop);
+        }
     }
 
     return real_BitBlt(hdc, x, y, cx, cy, hdcSrc, x1, y1, rop);
 }
 
+BOOL WINAPI fake_WinGBitBlt(
+    HDC hdc,
+    int x,
+    int y,
+    int cx,
+    int cy,
+    HDC hdcSrc,
+    int x1,
+    int y1)
+{
+    return fake_BitBlt(hdc, x, y, cx, cy, hdcSrc, x1, y1, SRCCOPY);
+}
+
 int WINAPI fake_SetDIBitsToDevice(
     HDC hdc,
     int xDest,