From 54d6ff5112fb6236c5dc1c7383a073b10f64ed77 Mon Sep 17 00:00:00 2001
From: FunkyFr3sh <cc.red.alert.1@googlemail.com>
Date: Wed, 8 May 2024 05:54:56 +0200
Subject: [PATCH] add support for woms 2 high resolution patch zoom

---
 inc/dd.h           |  1 +
 src/dd.c           |  5 +++--
 src/render_ogl.c   |  6 ++++--
 src/utils.c        | 34 ++++++++++++++++++++++++++++++++++
 src/winapi_hooks.c |  2 +-
 5 files changed, 43 insertions(+), 5 deletions(-)

diff --git a/inc/dd.h b/inc/dd.h
index 5fdc857..01e535e 100644
--- a/inc/dd.h
+++ b/inc/dd.h
@@ -123,6 +123,7 @@ typedef struct CNCDDRAW
     BOOL isredalert;
     BOOL iscnc1;
     BOOL iskkndx;
+    BOOL isworms2;
     LONG upscale_hack_active;
     HCURSOR old_cursor;
     int show_cursor_count;
diff --git a/src/dd.c b/src/dd.c
index 576a521..94147ab 100644
--- a/src/dd.c
+++ b/src/dd.c
@@ -1190,8 +1190,9 @@ HRESULT dd_SetCooperativeLevel(HWND hwnd, DWORD dwFlags)
         g_ddraw.isredalert = strcmp(g_ddraw.title, "Red Alert") == 0;
         g_ddraw.iscnc1 = strcmp(g_ddraw.title, "Command & Conquer") == 0;
         g_ddraw.iskkndx = strcmp(g_ddraw.title, "KKND Xtreme") == 0;
+        g_ddraw.isworms2 = strcmp(g_ddraw.title, "worms2") == 0;
 
-        if (g_ddraw.iskkndx)
+        if (g_ddraw.iskkndx || g_ddraw.isworms2)
         {
             g_ddraw.upscale_hack_width = 640;
             g_ddraw.upscale_hack_height = 480;
@@ -1202,7 +1203,7 @@ HRESULT dd_SetCooperativeLevel(HWND hwnd, DWORD dwFlags)
             g_ddraw.upscale_hack_height = 400;
         }
 
-        if (g_config.vhack && !g_ddraw.isredalert && !g_ddraw.iscnc1 && !g_ddraw.iskkndx)
+        if (g_config.vhack && !g_ddraw.isredalert && !g_ddraw.iscnc1 && !g_ddraw.iskkndx && !g_ddraw.isworms2)
         {
             g_config.vhack = 0;
         }
diff --git a/src/render_ogl.c b/src/render_ogl.c
index f208ab6..8e50e38 100644
--- a/src/render_ogl.c
+++ b/src/render_ogl.c
@@ -174,13 +174,15 @@ static void ogl_build_programs()
 
             if (!is_upscaler ||
                 g_ddraw.render.viewport.width != g_ddraw.width ||
-                g_ddraw.render.viewport.height != g_ddraw.height)
+                g_ddraw.render.viewport.height != g_ddraw.height ||
+                g_config.vhack)
             {
                 g_ogl.scale_program = oglu_build_program_from_file(shader_path, core_profile);
 
                 if (!g_ogl.scale_program &&
                     (g_ddraw.render.viewport.width != g_ddraw.width ||
-                        g_ddraw.render.viewport.height != g_ddraw.height))
+                        g_ddraw.render.viewport.height != g_ddraw.height ||
+                        g_config.vhack))
                 {
                     g_ogl.scale_program = 
                         oglu_build_program(
diff --git a/src/utils.c b/src/utils.c
index 347a143..f15316d 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -635,9 +635,29 @@ static unsigned char util_get_pixel(int x, int y)
 
 BOOL util_detect_low_res_screen()
 {
+    /* struct Copied from wkReSolution */
+    typedef struct
+    {
+        PVOID UnkTable1;
+        DWORD Unk1, Unk2, Unk3, Unk4;
+        PVOID UnkDD, UnkTable2;
+        DWORD Unk5;
+        DWORD RenderWidth, RenderHeight;
+        DWORD Unk6, Unk7;
+        DWORD WidthRT, HeightRT;
+        DWORD HalfWidth, HalfHeight;
+        DWORD Unk8;
+        PCHAR UnkC;
+        LPDIRECTDRAW lpDD;
+    } W2DDSTRUCT, * LPW2DDSTRUCT;
+
     static int* in_movie = (int*)0x00665F58;
     static int* is_vqa_640 = (int*)0x0065D7BC;
     static BYTE* should_stretch = (BYTE*)0x00607D78;
+    static LPW2DDSTRUCT* pW2DS;
+    
+    if (!pW2DS)
+        pW2DS = (char*)GetModuleHandleA(NULL) + 0x799C4;
 
     if (g_ddraw.width <= g_ddraw.upscale_hack_width || g_ddraw.height <= g_ddraw.upscale_hack_height)
     {
@@ -663,6 +683,20 @@ BOOL util_detect_low_res_screen()
     {
         return util_get_pixel(g_ddraw.width - 3, 3) == 0;
     }
+    else if (g_ddraw.isworms2)
+    {
+        if ((*pW2DS)->RenderWidth < g_ddraw.width && (*pW2DS)->RenderHeight < g_ddraw.height)
+        {
+            if (g_ddraw.upscale_hack_width != (*pW2DS)->RenderWidth || g_ddraw.upscale_hack_height != (*pW2DS)->RenderHeight)
+            {
+                g_ddraw.upscale_hack_width = (*pW2DS)->RenderWidth;
+                g_ddraw.upscale_hack_height = (*pW2DS)->RenderHeight;
+                InterlockedExchange(&g_ddraw.upscale_hack_active, FALSE);
+            }
+
+            return TRUE;
+        }
+    }
 
     return FALSE;
 }
diff --git a/src/winapi_hooks.c b/src/winapi_hooks.c
index 28e29c3..6b229ed 100644
--- a/src/winapi_hooks.c
+++ b/src/winapi_hooks.c
@@ -84,7 +84,7 @@ BOOL WINAPI fake_GetCursorPos(LPPOINT lpPoint)
             y = min(pt.y, g_ddraw.height - 1);
         }
 
-        if (g_config.vhack && InterlockedExchangeAdd(&g_ddraw.upscale_hack_active, 0))
+        if (g_config.vhack && !g_ddraw.isworms2 && InterlockedExchangeAdd(&g_ddraw.upscale_hack_active, 0))
         {
             diffx = 0;
             diffy = 0;