0.2 release

src/ddraw.c → src/ddraw.cpp

@@ -6,9 +6,12 @@
 #pragma comment( lib, "user32" )
 #pragma comment( lib, "gdi32" )
 
+#define CINTERFACE 
 #include <windows.h>
 #include <ddraw.h>
 
+void HookFonts(void);
+
 struct {
 	BITMAPINFOHEADER bmiHeader;
 	RGBQUAD bmiColors[256]; 
@@ -73,8 +76,8 @@ HRESULT GoFullscreen( void )
 					}
 					ddraw->lpVtbl->Release( ddraw );
 				}
-				FreeLibrary( ddraw_dll );
 			}
+			FreeLibrary( ddraw_dll );
 		}
 	}
 	return DDERR_GENERIC;
@@ -186,6 +189,9 @@ BOOL __stdcall DllEntryPoint( HINSTANCE hDll, DWORD dwReason, LPVOID lpvReserved
 		ButtonWndProc_original = wc.lpfnWndProc;
 		wc.lpfnWndProc = ButtonWndProc;
 		RegisterClass( &wc );
+
+		// Disable AntiAliased Fonts
+		HookFonts();
 	}
 
 	if( dwReason == DLL_PROCESS_DETACH )

src/no_aa.cpp

@@ -0,0 +1,81 @@
+// Disable AntiAliased Fonts via hot-patch of gdi's CreateFont/Indirect
+
+#include <windows.h>
+
+typedef HFONT (__stdcall* CREATEFONTINDIRECTA)( CONST LOGFONT* );
+typedef HFONT (__stdcall* CREATEFONTA)( int,int,int,int,int,DWORD,DWORD,DWORD,DWORD,DWORD,DWORD,DWORD,DWORD,LPCTSTR ); 
+
+CREATEFONTINDIRECTA CreateFontIndirectA_origproc;
+CREATEFONTA CreateFontA_origproc;
+
+// hook a system dll on Windows XP SP2 or later
+// returns the address of the original_proc on success, null on failure
+#pragma intrinsic( memcmp )
+void* HotPatch( void* target, void* hookproc )
+{
+	DWORD dwPrevProtect;
+	char* patch_address;
+	void* original_proc;
+
+	original_proc = NULL;
+
+	patch_address = ((char*)target) - 5;
+
+	// entry point could be at the top of a page if function is not hot-patch-able
+	// so VirtualProtect first to make sure patch_address is readable
+	if( VirtualProtect( patch_address, 7, PAGE_EXECUTE_WRITECOPY, &dwPrevProtect ) )
+	{
+		// make sure it is a hotpatchable image... check for 5 nops followed by mov edi,edi
+		if( !memcmp( "\x90\x90\x90\x90\x90\x8B\xFF", patch_address, 7 ) || 
+			!memcmp( "\xCC\xCC\xCC\xCC\xCC\x8B\xFF", patch_address, 7 ) )
+		{
+			// overwrite the pad nops above the function entry point with a jump
+			patch_address[0] = '\xE9';
+			*((DWORD*)(&patch_address[1])) = ((char*)hookproc) - patch_address - 5; // relative address
+
+			// 8B FF == mov edi,edi
+			// overwrite the functions entry point with a short jmp to the long jmp we just wrote...
+			*((WORD*)(&patch_address[5])) = 0xf9eb; // EB F9 == JMP SHORT $-5
+
+			original_proc = (void*) (((char*)target) + 2); // hop over hook
+		}
+		VirtualProtect( patch_address, 7, dwPrevProtect, &dwPrevProtect ); // restore protection
+	}
+	return original_proc;
+}
+
+#pragma intrinsic( memcpy )
+HFONT __stdcall CreateFontIndirectA_hookproc( CONST LOGFONTA* lplf )
+{
+	LOGFONTA lf;
+	memcpy( &lf, lplf, sizeof(lf) ); 
+	lf.lfQuality = NONANTIALIASED_QUALITY;
+	return CreateFontIndirectA_origproc( &lf );
+}
+
+HFONT __stdcall CreateFontA_hookproc( int nHeight, int nWidth, int nEscapement, int nOrientation, int fnWeight,
+	DWORD fdwItalic, DWORD fdwUnderline, DWORD fdwStrikeOut, DWORD fdwCharSet, 
+	DWORD fdwOutputPrecision, DWORD fdwClipPrecision, DWORD fdwQuality, DWORD fdwPitchAndFamily,
+    LPCTSTR lpszFace )
+{
+	fdwQuality = NONANTIALIASED_QUALITY;
+	return CreateFontA_origproc( nHeight, nWidth, nEscapement, nOrientation, fnWeight, 
+		fdwItalic, fdwUnderline, fdwStrikeOut, fdwCharSet, 
+		fdwOutputPrecision, fdwClipPrecision, fdwQuality, fdwPitchAndFamily, 
+		lpszFace );
+}
+
+void HookFonts(void)
+{
+	HMODULE gdi_dll;
+
+	gdi_dll = GetModuleHandle("GDI32.dll");
+
+	CreateFontA_origproc = (CREATEFONTA) HotPatch( 
+		GetProcAddress( gdi_dll, "CreateFontA" ),
+		CreateFontA_hookproc );
+
+	CreateFontIndirectA_origproc = (CREATEFONTINDIRECTA) HotPatch(
+		GetProcAddress( gdi_dll, "CreateFontIndirectA" ),
+		CreateFontIndirectA_hookproc );
+}

src/proxy_dll.vcproj

@@ -141,7 +141,6 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="usp10.lib imm32.lib"
 				OutputFile="ddraw.dll"
 				LinkIncremental="1"
 				GenerateManifest="false"
@@ -185,13 +184,17 @@
 	</References>
 	<Files>
 		<File
-			RelativePath=".\ddraw.c"
+			RelativePath=".\ddraw.cpp"
 			>
 		</File>
 		<File
 			RelativePath=".\dpiaware.manifest"
 			>
 		</File>
+		<File
+			RelativePath=".\no_aa.cpp"
+			>
+		</File>
 		<File
 			RelativePath=".\resource.rc"
 			>

src/resource.rc

@@ -1,8 +1,8 @@
 #include <windows.h>
 
 VS_VERSION_INFO VERSIONINFO
-FILEVERSION    0,0,0,1
-PRODUCTVERSION 0,0,0,1
+FILEVERSION    0,0,0,2
+PRODUCTVERSION 0,0,0,2
 FILEFLAGSMASK  63
 FILEFLAGS      0
 FILEOS         VOS_UNKNOWN
@@ -14,7 +14,7 @@ FILESUBTYPE    VFT2_UNKNOWN
 		BLOCK "040904E4" /* LANG_ENGLISH/SUBLANG_DEFAULT, CP 1252 */
 		{
 			VALUE "FileDescription", "compatibility ddraw proxy for war2bne"
-			VALUE "FileVersion", "0.1"
+			VALUE "FileVersion", "0.2"
 			VALUE "LegalCopyright", "www.bitpatch.com"
 		}
     }