Initial fixNES integration

2025-12-08 21:07:42 +00:00 · 2018-02-01 13:19:34 -10:00
parent c84845c9a5
commit 93fc2d8072
28 changed files with 1515 additions and 321 deletions
--- a/NESEmulator/CNESEmulator.hpp
+++ b/NESEmulator/CNESEmulator.hpp
@@ -0,0 +1,81 @@
+#ifndef __URDE_CNESEMULATOR_HPP__
+#define __URDE_CNESEMULATOR_HPP__
+
+#include "RetroTypes.hpp"
+#include "zeus/CColor.hpp"
+#include "boo/graphicsdev/IGraphicsDataFactory.hpp"
+#include "boo/audiodev/IAudioVoice.hpp"
+#include "zeus/CMatrix4f.hpp"
+
+namespace urde
+{
+class CFinalInput;
+class IDvdRequest;
+
+namespace MP1
+{
+
+#define NUM_AUDIO_BUFFERS 10
+
+class CNESEmulator : public boo::IAudioVoiceCallback
+{
+    static bool EmulatorConstructed;
+
+    std::unique_ptr<u8[]> m_nesEmuPBuf;
+    std::shared_ptr<IDvdRequest> m_dvdReq;
+
+    struct Vert
+    {
+        zeus::CVector3f m_pos;
+        zeus::CVector2f m_uv;
+    };
+
+    struct Uniform
+    {
+        zeus::CMatrix4f m_matrix;
+        zeus::CColor m_color;
+    };
+
+    boo::ObjToken<boo::ITextureD> m_texture;
+    boo::ObjToken<boo::IGraphicsBufferD> m_uniBuf;
+    boo::ObjToken<boo::IGraphicsBufferS> m_vbo;
+    boo::ObjToken<boo::IShaderDataBinding> m_shadBind;
+
+    std::unique_ptr<u8[]> m_audioBufBlock;
+    u8* m_audioBufs[NUM_AUDIO_BUFFERS];
+    int m_headBuf = 0;
+    int m_tailBuf = 0;
+    int m_procBufs = NUM_AUDIO_BUFFERS;
+    size_t m_posInBuf = 0;
+    boo::ObjToken<boo::IAudioVoice> m_booVoice;
+
+    bool x20_wantsQuit = false;
+    u8 x21_saveState[18];
+    bool x34_wantsLoad = false;
+    bool x38_stateLoaded = false;
+    u8 x39_loadState[18];
+    static void DecompressROM(u8* dataIn, u8* dataOut, u32 dataOutLen = 0x20000, u8 descrambleSeed = 0xe9,
+                              u32 checkDataLen = 0x1FFFC, u32 checksumMagic = 0xA663);
+    void InitializeEmulator();
+    void DeinitializeEmulator();
+    void NesEmuMainLoop();
+public:
+    CNESEmulator();
+    ~CNESEmulator();
+    void ProcessUserInput(const CFinalInput& input, int);
+    void Update();
+    void Draw(const zeus::CColor& mulColor, bool filtering);
+    void LoadState(const u8* state);
+    const u8* GetSaveState() const { return x21_saveState; }
+    bool WantsQuit() const { return x20_wantsQuit; }
+    bool WantsLoad() const { return x34_wantsLoad; }
+
+    int audioUpdate();
+    void preSupplyAudio(boo::IAudioVoice& voice, double dt) {}
+    size_t supplyAudio(boo::IAudioVoice& voice, size_t frames, int16_t* data);
+};
+
+}
+}
+
+#endif // __URDE_CNESEMULATOR_HPP__