Expose SRAM pointers for frontends that manage save data their own way (#1643)

* Add a clarifying comment

- In case it saves some poor bastard hours of fruitless work

* Expose GBA and NDS save memory

- Add GetSaveMemory and GetSaveMemoryLength functions
- Where unsupported, they return null and zero

1 files changed, 29 insertions, 0 deletions

diff --git a/src/GBACart.cpp b/src/GBACart.cpp
index 3f42326..86effc9 100644
--- a/src/GBACart.cpp
+++ b/src/GBACart.cpp
@@ -100,6 +100,15 @@ void CartCommon::SRAMWrite(u32 addr, u8 val)
 {

 }

 

+u8* CartCommon::GetSaveMemory() const

+{

+    return nullptr;

+}

+

+u32 CartCommon::GetSaveMemoryLength() const

+{

+    return 0;

+}

 

 CartGame::CartGame(u8* rom, u32 len) : CartCommon()

 {

@@ -334,6 +343,16 @@ void CartGame::SRAMWrite(u32 addr, u8 val)
     }

 }

 

+u8* CartGame::GetSaveMemory() const

+{

+    return SRAM;

+}

+

+u32 CartGame::GetSaveMemoryLength() const

+{

+    return SRAMLength;

+}

+

 void CartGame::ProcessGPIO()

 {

 }

@@ -878,4 +897,14 @@ void SRAMWrite(u32 addr, u8 val)
     if (Cart) Cart->SRAMWrite(addr, val);

 }

 

+u8* GetSaveMemory()

+{

+    return Cart ? Cart->GetSaveMemory() : nullptr;

+}

+

+u32 GetSaveMemoryLength()

+{

+    return Cart ? Cart->GetSaveMemoryLength() : 0;

+}

+

 }