hook SelectPalette

FunkyFr3sh · Dec 15, 2024 · a5a4204 · a5a4204
1 parent 6c67db5
commit a5a4204
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Showing 4 changed files with 23 additions and 0 deletions.
diff --git a/inc/hook.h b/inc/hook.h
@@ -65,6 +65,7 @@ typedef int (WINAPI* GETDEVICECAPSPROC)(HDC, int);
 typedef HFONT(WINAPI* CREATEFONTINDIRECTAPROC)(CONST LOGFONT*);
 typedef HFONT(WINAPI* CREATEFONTAPROC)(int, int, int, int, int, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, LPCTSTR);
 typedef UINT(WINAPI* GETSYSTEMPALETTEENTRIESPROC)(HDC, UINT, UINT, LPPALETTEENTRY);
+typedef HPALETTE(WINAPI* SELECTPALETTEPROC)(HDC, HPALETTE, BOOL);
 
 typedef HMODULE(WINAPI* LOADLIBRARYAPROC)(LPCSTR);
 typedef HMODULE(WINAPI* LOADLIBRARYWPROC)(LPCWSTR);
@@ -119,6 +120,7 @@ extern GETDEVICECAPSPROC real_GetDeviceCaps;
 extern CREATEFONTINDIRECTAPROC real_CreateFontIndirectA;
 extern CREATEFONTAPROC real_CreateFontA;
 extern GETSYSTEMPALETTEENTRIESPROC real_GetSystemPaletteEntries;
+extern SELECTPALETTEPROC real_SelectPalette;
 extern LOADLIBRARYAPROC real_LoadLibraryA;
 extern LOADLIBRARYWPROC real_LoadLibraryW;
 extern LOADLIBRARYEXAPROC real_LoadLibraryExA;

diff --git a/inc/winapi_hooks.h b/inc/winapi_hooks.h
@@ -59,6 +59,7 @@ int WINAPI fake_StretchDIBits(
 HFONT WINAPI fake_CreateFontIndirectA(CONST LOGFONTA*);
 HFONT WINAPI fake_CreateFontA(int, int, int, int, int, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, LPCTSTR);
 UINT WINAPI fake_GetSystemPaletteEntries(HDC, UINT, UINT, LPPALETTEENTRY);
+HPALETTE WINAPI fake_SelectPalette(HDC, HPALETTE, BOOL);
 
 HMODULE WINAPI fake_LoadLibraryA(LPCSTR lpLibFileName);
 HMODULE WINAPI fake_LoadLibraryW(LPCWSTR lpLibFileName);

diff --git a/src/hook.c b/src/hook.c
@@ -58,6 +58,7 @@ GETDEVICECAPSPROC real_GetDeviceCaps = GetDeviceCaps;
 CREATEFONTINDIRECTAPROC real_CreateFontIndirectA = CreateFontIndirectA;
 CREATEFONTAPROC real_CreateFontA = CreateFontA;
 GETSYSTEMPALETTEENTRIESPROC real_GetSystemPaletteEntries = GetSystemPaletteEntries;
+SELECTPALETTEPROC real_SelectPalette = SelectPalette;
 LOADLIBRARYAPROC real_LoadLibraryA = LoadLibraryA;
 LOADLIBRARYWPROC real_LoadLibraryW = LoadLibraryW;
 LOADLIBRARYEXAPROC real_LoadLibraryExA = LoadLibraryExA;
@@ -151,6 +152,7 @@ HOOKLIST g_hook_hooklist[] =
             { "GetDeviceCaps", (PROC)fake_GetDeviceCaps, (PROC*)&real_GetDeviceCaps, HOOK_LOCAL_ONLY },
             { "CreateFontA", (PROC)fake_CreateFontA, (PROC*)&real_CreateFontA, 0 },
             { "GetSystemPaletteEntries", (PROC)fake_GetSystemPaletteEntries, (PROC*)&real_GetSystemPaletteEntries, 0 },
+            { "SelectPalette", (PROC)fake_SelectPalette, (PROC*)&real_SelectPalette, 0 },
             { "CreateFontIndirectA", (PROC)fake_CreateFontIndirectA, (PROC*)&real_CreateFontIndirectA, 0 },
             { "", NULL, NULL, 0 }
         }

diff --git a/src/winapi_hooks.c b/src/winapi_hooks.c
@@ -1385,6 +1385,24 @@ UINT WINAPI fake_GetSystemPaletteEntries(HDC hdc, UINT iStart, UINT cEntries, LP
     return real_GetSystemPaletteEntries(hdc, iStart, cEntries, pPalEntries);
 }
 
+HPALETTE WINAPI fake_SelectPalette(HDC hdc, HPALETTE hPal, BOOL bForceBkgd)
+{
+    if (g_ddraw.ref && g_ddraw.bpp == 8 && WindowFromDC(hdc) == g_ddraw.hwnd)
+    {
+        if (g_ddraw.primary && g_ddraw.primary->palette)
+        {
+            TRACE("%s [%p]\n", __FUNCTION__, _ReturnAddress());
+
+            PALETTEENTRY pal[256];
+            GetPaletteEntries(hPal, 0, 256, pal);
+
+            ddp_SetEntries(g_ddraw.primary->palette, 0, 0, 256, pal);
+        }
+    }
+
+    return real_SelectPalette(hdc, hPal, bForceBkgd);
+}
+
 HMODULE WINAPI fake_LoadLibraryA(LPCSTR lpLibFileName)
 {
     HMODULE hmod_old = GetModuleHandleA(lpLibFileName);