add troulouliou's depth compare hack

desmume/src/NDSSystem.h

@@ -511,6 +511,7 @@ extern struct TCommonSettings {
 		, GFX3D_EdgeMark(true)
 		, GFX3D_Fog(true)
 		, GFX3D_Texture(true)
+		, GFX3D_Zelda_Shadow_Depth_Hack(0)
 		, UseExtBIOS(false)
 		, SWIFromBIOS(false)
 		, PatchSWI3(false)
@@ -548,6 +549,7 @@ extern struct TCommonSettings {
 	bool GFX3D_EdgeMark;
 	bool GFX3D_Fog;
 	bool GFX3D_Texture;
+	int  GFX3D_Zelda_Shadow_Depth_Hack;
 
 	bool UseExtBIOS;
 	char ARM9BIOS[256];

desmume/src/commandline.cpp

@@ -52,10 +52,12 @@ CommandLine::CommandLine()
 , _rigorous_timing(0)
 , _advanced_timing(-1)
 , _slot1(NULL)
+, depth_threshold(-1)
+, load_slot(-1)
+, arm9_gdb_port(0)
+, arm7_gdb_port(0)
+, start_paused(FALSE)
 {
-	load_slot = -1;
-	arm9_gdb_port = arm7_gdb_port = 0;
-	start_paused = FALSE;
 #ifndef _MSC_VER
 	disable_sound = 0;
 	disable_limiter = 0;
@@ -92,6 +94,7 @@ void CommandLine::loadCommonOptions()
 		{ "rigorous-timing", 0, 0, G_OPTION_ARG_INT, &_rigorous_timing, "Use some rigorous timings instead of unrealistically generous (default 0)", "RIGOROUS_TIMING"},
 		{ "advanced-timing", 0, 0, G_OPTION_ARG_INT, &_advanced_timing, "Use advanced BUS-level timing (default 1)", "ADVANCED_TIMING"},
 		{ "slot1", 0, 0, G_OPTION_ARG_STRING, &_slot1, "Device to load in slot 1 (default retail)", "SLOT1"},
+		{ "depth-threshold", 0, 0, G_OPTION_ARG_INT, &depth_threshold, "Depth comparison threshold (default 0)", "DEPTHTHRESHOLD"},
 #ifndef _MSC_VER
 		{ "disable-sound", 0, 0, G_OPTION_ARG_NONE, &disable_sound, "Disables the sound emulation", NULL},
 		{ "disable-limiter", 0, 0, G_OPTION_ARG_NONE, &disable_limiter, "Disables the 60fps limiter", NULL},
@@ -127,6 +130,8 @@ bool CommandLine::parse(int argc,char **argv)
 	if(_num_cores != -1) CommonSettings.num_cores = _num_cores;
 	if(_rigorous_timing) CommonSettings.rigorous_timing = true;
 	if(_advanced_timing != -1) CommonSettings.advanced_timing = _advanced_timing==1;
+	if(depth_threshold != -1)
+		CommonSettings.GFX3D_Zelda_Shadow_Depth_Hack = depth_threshold;
 
 	//TODO MAX PRIORITY! change ARM9BIOS etc to be a std::string
 	if(_bios_arm9) { CommonSettings.UseExtBIOS = true; strcpy(CommonSettings.ARM9BIOS,_bios_arm9); }

desmume/src/commandline.h

@@ -40,6 +40,7 @@ class CommandLine
 public:
 	//actual options: these may move to another sturct
 	int load_slot;
+	int depth_threshold;
 	std::string nds_file;
 	std::string play_movie_file;
 	std::string record_movie_file;

desmume/src/rasterize.cpp

@@ -546,10 +546,23 @@ public:
 
 		if(polyAttr.decalMode)
 		{
-			if(depth != destFragment.depth)
+			if ( CommonSettings.GFX3D_Zelda_Shadow_Depth_Hack > 0)
 			{
-				goto depth_fail;
+				if(depth<destFragment.depth - CommonSettings.GFX3D_Zelda_Shadow_Depth_Hack
+					|| depth>destFragment.depth + CommonSettings.GFX3D_Zelda_Shadow_Depth_Hack) 
+				{
+					goto depth_fail;
+				}
+
 			}
+			else
+			{
+				if(depth != destFragment.depth)
+				{
+					goto depth_fail;
+				}
+			}
+
 		}
 		else
 		{

desmume/src/windows/main.cpp

@@ -2583,6 +2583,8 @@ int _main()
 	CommonSettings.spu_advanced = GetPrivateProfileBool("Sound", "SpuAdvanced", false, IniName);
 	CommonSettings.advanced_timing = GetPrivateProfileBool("Emulation", "AdvancedTiming", true, IniName);
 
+	CommonSettings.GFX3D_Zelda_Shadow_Depth_Hack = GetPrivateProfileInt("3D", "ZeldaShadowDepthHack", 0, IniName);
+		
 	lostFocusPause = GetPrivateProfileBool("Focus", "BackgroundPause", false, IniName);
 
 	//Get Ram-Watch values
@@ -5491,6 +5493,7 @@ LRESULT CALLBACK GFX3DSettingsDlgProc(HWND hw, UINT msg, WPARAM wp, LPARAM lp)
 			CheckDlgButton(hw,IDC_3DSETTINGS_EDGEMARK,CommonSettings.GFX3D_EdgeMark);
 			CheckDlgButton(hw,IDC_3DSETTINGS_FOG,CommonSettings.GFX3D_Fog);
 			CheckDlgButton(hw,IDC_3DSETTINGS_TEXTURE,CommonSettings.GFX3D_Texture);
+			SetDlgItemInt (hw,IDC_ZELDA_SHADOW_DEPTH_HACK,CommonSettings.GFX3D_Zelda_Shadow_Depth_Hack,FALSE);
 			//CheckDlgButton(hw,IDC_ALTERNATEFLUSH,CommonSettings.gfx3d_flushMode);
 
 			for(i = 0; core3DList[i] != NULL; i++)
@@ -5511,11 +5514,14 @@ LRESULT CALLBACK GFX3DSettingsDlgProc(HWND hw, UINT msg, WPARAM wp, LPARAM lp)
 					CommonSettings.GFX3D_EdgeMark = IsDlgCheckboxChecked(hw,IDC_3DSETTINGS_EDGEMARK);
 					CommonSettings.GFX3D_Fog = IsDlgCheckboxChecked(hw,IDC_3DSETTINGS_FOG);
 					CommonSettings.GFX3D_Texture = IsDlgCheckboxChecked(hw,IDC_3DSETTINGS_TEXTURE);
+					CommonSettings.GFX3D_Zelda_Shadow_Depth_Hack  = GetDlgItemInt(hw,IDC_ZELDA_SHADOW_DEPTH_HACK,NULL,FALSE);
+
 					Change3DCoreWithFallbackAndSave(ComboBox_GetCurSel(GetDlgItem(hw, IDC_3DCORE)));
 					WritePrivateProfileBool("3D", "HighResolutionInterpolateColor", CommonSettings.GFX3D_HighResolutionInterpolateColor, IniName);
 					WritePrivateProfileBool("3D", "EnableEdgeMark", CommonSettings.GFX3D_EdgeMark, IniName);
 					WritePrivateProfileBool("3D", "EnableFog", CommonSettings.GFX3D_Fog, IniName);
 					WritePrivateProfileBool("3D", "EnableTexture", CommonSettings.GFX3D_Texture, IniName);
+					WritePrivateProfileInt ("3D", "ZeldaShadowDepthHack", CommonSettings.GFX3D_Zelda_Shadow_Depth_Hack, IniName);
 					//CommonSettings.gfx3d_flushMode = (IsDlgButtonChecked(hw,IDC_ALTERNATEFLUSH) == BST_CHECKED)?1:0;
 					//WritePrivateProfileInt("3D", "AlternateFlush", CommonSettings.gfx3d_flushMode, IniName);
 				}

desmume/src/windows/resource.h

@@ -779,6 +779,12 @@
 #define IDC_USENOISE                    5010
 #define IDC_CPU                         6000
 #define IDC_IOREG                       6001
+
+//ZELDA SHADOW HACK
+#define ID_LABEL_ZELDA_SHADOW_DEPTH_HACK		9000
+#define IDC_ZELDA_SHADOW_DEPTH_HACK			9001
+
+
 #define IDD_CHEAT_ADD_XX_CODE           10005
 #define IDD_GBASLOT_GUITARGRIP          10009
 #define IDD_GBASLOT_PIANO               10010