Reduce bsnes115 state size (#3105)

* testing...

* more testing...

* this is probably a bad idea

* well this probably fixes state size issues

* time to debug this

* oh derp it's just not enough memory in invis heap

* let's see if this works?

* apparently this breaks slow ppu?

* testing...

* testing...

* testing...

* sanity checking

* let's try again

* i do not know what the fuck is up with this emulator nor do i care enough, state size is still under a mb anyways with slow ppu

* oops forgot to commit this

* resolve some issues

* tweak memory allocation sizes

* dont save more cache stuff

* wtf was i even thinking here

* move comment back to original pos, comment on double loading

src/BizHawk.Emulation.Cores/Consoles/Nintendo/BSNES/BsnesApi.cs

@@ -115,10 +115,10 @@ namespace BizHawk.Emulation.Cores.Nintendo.BSNES
 			{
 				Filename = "bsnes.wbx",
 				Path = dllPath,
-				SbrkHeapSizeKB = 14 * 1024,
+				SbrkHeapSizeKB = 12 * 1024,
-				InvisibleHeapSizeKB = 4,
+				InvisibleHeapSizeKB = 136 * 1024, // TODO: Roms get saved here and in mmap, consider consolidating?
-				MmapHeapSizeKB = 110 * 1024, // TODO: check whether this needs to be larger; it depends on the rom size
+				MmapHeapSizeKB = 33 * 1024, // TODO: check whether this needs to be larger; it depends on the rom size
-				PlainHeapSizeKB = 0,
+				PlainHeapSizeKB = 1 * 1024,
 				SealedHeapSizeKB = 0,
 				SkipCoreConsistencyCheck = comm.CorePreferences.HasFlag(CoreComm.CorePreferencesFlags.WaterboxCoreConsistencyCheck),
 				SkipMemoryConsistencyCheck = comm.CorePreferences.HasFlag(CoreComm.CorePreferencesFlags.WaterboxMemoryConsistencyCheck),

waterbox/bsnescore/bsnes/sfc/memory/memory.cpp

@@ -6,8 +6,9 @@ bool Memory::GlobalWriteEnable = false;
 Bus bus;
 
 Bus::~Bus() {
-  if(lookup) delete[] lookup;
+  //if(lookup) delete[] lookup;
-  if(target) delete[] target;
+  //if(target) delete[] target;
+  abort();
 }
 
 auto Bus::reset() -> void {
@@ -17,11 +18,14 @@ auto Bus::reset() -> void {
     counter[id] = 0;
   }
 
-  if(lookup) delete[] lookup;
+  //if(lookup) delete[] lookup;
-  if(target) delete[] target;
+  //if(target) delete[] target;
 
-  lookup = new uint8 [16 * 1024 * 1024]();
+  //lookup = new uint8 [16 * 1024 * 1024]();
-  target = new uint32[16 * 1024 * 1024]();
+  //target = new uint32[16 * 1024 * 1024]();
+
+  if (!lookup) lookup = alloc_invisible<uint8> (16 * 1024 * 1024);
+  if (!target) target = alloc_invisible<uint32>(16 * 1024 * 1024);
 
   reader[0] = [](uint, uint8 data) -> uint8 { return data; };
   writer[0] = [](uint, uint8) -> void {};

waterbox/bsnescore/bsnes/sfc/memory/protectable.hpp

@@ -1,14 +1,18 @@
 struct ProtectableMemory : Memory {
   inline auto reset() -> void override {
-    delete[] self.data;
+    //delete[] self.data;
-    self.data = nullptr;
+    //self.data = nullptr;
-    self.size = 0;
+    //self.size = 0;
   }
 
   inline auto allocate(uint size, uint8 fill = 0xff) -> void override {
+    if (!self.data) {
+        self.data = alloc_plain<uint8>(self.size = size);
+    }
     if(self.size != size) {
-      delete[] self.data;
+      //delete[] self.data;
-      self.data = new uint8[self.size = size];
+      //self.data = new uint8[self.size = size];
+      abort();
     }
     for(uint address : range(size)) {
       self.data[address] = fill;

waterbox/bsnescore/bsnes/sfc/memory/readable.hpp

@@ -1,14 +1,18 @@
 struct ReadableMemory : Memory {
   inline auto reset() -> void override {
-    delete[] self.data;
+    //delete[] self.data;
-    self.data = nullptr;
+    //self.data = nullptr;
-    self.size = 0;
+    //self.size = 0;
   }
 
   inline auto allocate(uint size, uint8 fill = 0xff) -> void override {
+    if (!self.data) {
+        self.data = alloc_invisible<uint8>(self.size = size);
+    }
     if(self.size != size) {
-      delete[] self.data;
+      //delete[] self.data;
-      self.data = new uint8[self.size = size];
+      //self.data = new uint8[self.size = size];
+      abort();
     }
     for(uint address : range(size)) {
       self.data[address] = fill;

waterbox/bsnescore/bsnes/sfc/memory/writable.hpp

@@ -1,14 +1,18 @@
 struct WritableMemory : Memory {
   inline auto reset() -> void override {
-    delete[] self.data;
+    //delete[] self.data;
-    self.data = nullptr;
+    //self.data = nullptr;
-    self.size = 0;
+    //self.size = 0;
   }
 
   inline auto allocate(uint size, uint8 fill = 0xff) -> void override {
+    if (!self.data) {
+        self.data = alloc_plain<uint8>(self.size = size);
+    }
     if(self.size != size) {
-      delete[] self.data;
+      //delete[] self.data;
-      self.data = new uint8[self.size = size];
+      //self.data = new uint8[self.size = size];
+      abort();
     }
     for(uint address : range(size)) {
       self.data[address] = fill;

waterbox/bsnescore/bsnes/sfc/ppu-fast/ppu.cpp

@@ -34,10 +34,12 @@ auto PPU::noVRAMBlocking() const -> bool { return configuration.hacks.ppu.noVRAM
 #define ppu ppufast
 
 PPU::PPU() {
-  output = new uint16_t[2304 * 2160]();
+  //output = new uint16_t[2304 * 2160]();
+  output = alloc_invisible<uint16_t>(2304 * 2160);
 
   for(uint l : range(16)) {
-    lightTable[l] = new uint16_t[32768];
+    //lightTable[l] = new uint16_t[32768];
+    lightTable[l] = alloc_invisible<uint16_t>(32768);
     for(uint r : range(32)) {
       for(uint g : range(32)) {
         for(uint b : range(32)) {
@@ -51,14 +53,17 @@ PPU::PPU() {
     }
   }
 
+  lines = alloc_invisible<Line>(240);
+
   for(uint y : range(240)) {
     lines[y].y = y;
   }
 }
 
 PPU::~PPU() {
-  delete[] output;
+  //delete[] output;
-  for(uint l : range(16)) delete[] lightTable[l];
+  //for(uint l : range(16)) delete[] lightTable[l];
+  abort();
 }
 
 auto PPU::synchronizeCPU() -> void {

waterbox/bsnescore/bsnes/sfc/ppu-fast/ppu.hpp

@@ -351,7 +351,8 @@ public:
   };
 
 //unserialized:
-  Line lines[240];
+  //Line lines[240];
+  Line* lines;
 
   //used to help detect when the video output size changes between frames to clear overscan area.
   struct Frame {

waterbox/bsnescore/bsnes/sfc/sfc.hpp

@@ -3,6 +3,8 @@
 //license: GPLv3
 //started: 2004-10-14
 
+#include <emulibc.h>
+
 #include <emulator/emulator.hpp>
 #include <emulator/random.hpp>
 #include <emulator/cheat.hpp>