gs: implement sstate handler functions

pcsx2/GS/GS.cpp

@@ -976,9 +976,7 @@ void GSReplay(HWND hwnd, HINSTANCE hinst, LPSTR lpszCmdLine, int nCmdShow)
 	const std::string f{lpszCmdLine};
 	const bool is_xz = f.size() >= 4 && f.compare(f.size() - 3, 3, ".xz") == 0;
 
-	auto file = is_xz
+	auto file = is_xz ? std::unique_ptr<GSDumpFile>{std::make_unique<GSDumpLzma>(lpszCmdLine, nullptr)} : std::unique_ptr<GSDumpFile>{std::make_unique<GSDumpRaw>(lpszCmdLine, nullptr)};
-		? std::unique_ptr<GSDumpFile>{std::make_unique<GSDumpLzma>(lpszCmdLine, nullptr)}
-		: std::unique_ptr<GSDumpFile>{std::make_unique<GSDumpRaw>(lpszCmdLine, nullptr)};
 
 	GSinit();
 
@@ -1071,17 +1069,26 @@ void GSReplay(HWND hwnd, HINSTANCE hinst, LPSTR lpszCmdLine, int nCmdShow)
 				case 0:
 					switch (p.param)
 					{
-						case 0: GSgifTransfer1(p.buff.data(), p.addr); break;
+						case 0:
-						case 1: GSgifTransfer2(p.buff.data(), p.size / 16); break;
+							GSgifTransfer1(p.buff.data(), p.addr);
-						case 2: GSgifTransfer3(p.buff.data(), p.size / 16); break;
+							break;
-						case 3: GSgifTransfer(p.buff.data(), p.size / 16); break;
+						case 1:
+							GSgifTransfer2(p.buff.data(), p.size / 16);
+							break;
+						case 2:
+							GSgifTransfer3(p.buff.data(), p.size / 16);
+							break;
+						case 3:
+							GSgifTransfer(p.buff.data(), p.size / 16);
+							break;
 					}
 					break;
 				case 1:
 					GSvsync(p.param);
 					break;
 				case 2:
-					if(buff.size() < p.size) buff.resize(p.size);
+					if (buff.size() < p.size)
+						buff.resize(p.size);
 					GSreadFIFO2(p.buff.data(), p.size / 16);
 					break;
 				case 3:
@@ -1107,7 +1114,11 @@ void GSBenchmark(HWND hwnd, HINSTANCE hinst, LPSTR lpszCmdLine, int nCmdShow)
 	{
 		GSLocalMemory* mem = new GSLocalMemory();
 
-		static struct {int psm; const char* name;} s_format[] =
+		static struct
+		{
+			int psm;
+			const char* name;
+		} s_format[] =
 			{
 				{PSM_PSMCT32, "32"},
 				{PSM_PSMCT24, "24"},
@@ -1377,9 +1388,7 @@ void GSReplay(char* lpszCmdLine, int renderer)
 		else
 			f.replace(f.end() - 3, f.end(), "_repack.gs");
 
-		GSDumpFile* file = is_xz
+		GSDumpFile* file = is_xz ? (GSDumpFile*)new GSDumpLzma(lpszCmdLine, repack_dump ? f.c_str() : nullptr) : (GSDumpFile*)new GSDumpRaw(lpszCmdLine, repack_dump ? f.c_str() : nullptr);
-			? (GSDumpFile*) new GSDumpLzma(lpszCmdLine, repack_dump ? f.c_str() : nullptr)
-			: (GSDumpFile*) new GSDumpRaw(lpszCmdLine, repack_dump ? f.c_str() : nullptr);
 
 		uint32 crc;
 		file->Read(&crc, 4);
@@ -1473,10 +1482,18 @@ void GSReplay(char* lpszCmdLine, int renderer)
 
 					switch (p->param)
 					{
-						case 0: GSgifTransfer1(&p->buff[0], p->addr); break;
+						case 0:
-						case 1: GSgifTransfer2(&p->buff[0], p->size / 16); break;
+							GSgifTransfer1(&p->buff[0], p->addr);
-						case 2: GSgifTransfer3(&p->buff[0], p->size / 16); break;
+							break;
-						case 3: GSgifTransfer(&p->buff[0], p->size / 16); break;
+						case 1:
+							GSgifTransfer2(&p->buff[0], p->size / 16);
+							break;
+						case 2:
+							GSgifTransfer3(&p->buff[0], p->size / 16);
+							break;
+						case 3:
+							GSgifTransfer(&p->buff[0], p->size / 16);
+							break;
 					}
 
 					break;
@@ -2289,3 +2306,49 @@ GSRendererType GSApp::GetCurrentRendererType() const
 {
 	return m_current_renderer_type;
 }
+
+void GSDoFreezeOut(void* dest)
+{
+	freezeData fP = {0, (s8*)dest};
+	if (GSfreeze(FREEZE_SIZE, &fP) != 0)
+		return;
+	if (!fP.size)
+		return;
+
+	Console.Indent().WriteLn("Saving GS");
+
+	if (GSfreeze(FREEZE_SAVE, &fP) != 0)
+		throw std::runtime_error(" * GS: Error saving state!\n");
+}
+
+
+void GSDoFreezeIn(pxInputStream& infp)
+{
+	freezeData fP = {0, nullptr};
+	if (GSfreeze(FREEZE_SIZE, &fP) != 0)
+		fP.size = 0;
+
+	Console.Indent().WriteLn("Loading GS");
+
+	if (!infp.IsOk() || !infp.Length())
+	{
+		// no state data to read, but GS expects some state data?
+		// Issue a warning to console...
+		if (fP.size != 0)
+			Console.Indent().Warning("Warning: No data for GS found. Status may be unpredictable.");
+
+		return;
+
+		// Note: Size mismatch check could also be done here on loading, but
+		// some plugins may have built-in version support for non-native formats or
+		// older versions of a different size... or could give different sizes depending
+		// on the status of the plugin when loading, so let's ignore it.
+	}
+
+	ScopedAlloc<s8> data(fP.size);
+	fP.data = data.GetPtr();
+
+	infp.Read(fP.data, fP.size);
+	if (GSfreeze(FREEZE_LOAD, &fP) != 0)
+		throw std::runtime_error(" * GS: Error loading state!\n");
+}

pcsx2/GS/GS.h

@@ -1967,3 +1967,7 @@ struct GSErrorGlVertexArrayTooSmall : GSError
 extern GSApp theApp;
 
 extern bool gsopen_done;
+
+
+void GSDoFreezeOut(void* dest);
+void GSDoFreezeIn(pxInputStream& infp);