114 lines
No EOL
2.5 KiB
C++
114 lines
No EOL
2.5 KiB
C++
#pragma once
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#include "stdafx.h"
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#include "PpuTypes.h"
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class Console;
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class InternalRegisters;
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class Ppu
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{
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public:
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constexpr static uint32_t SpriteRamSize = 544;
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constexpr static uint32_t CgRamSize = 512;
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constexpr static uint32_t VideoRamSize = 0x10000;
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private:
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constexpr static const uint8_t _oamSizes[8][2][2] = {
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{ { 1, 1 }, { 2, 2 } }, //8x8 + 16x16
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{ { 1, 1 }, { 4, 4 } }, //8x8 + 32x32
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{ { 1, 1 }, { 8, 8 } }, //8x8 + 64x64
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{ { 2, 2 }, { 4, 4 } }, //16x16 + 32x32
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{ { 2, 2 }, { 8, 8 } }, //16x16 + 64x64
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{ { 4, 4 }, { 8, 8 } }, //32x32 + 64x64
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{ { 2, 4 }, { 4, 8 } }, //16x32 + 32x64
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{ { 2, 4 }, { 4, 4 } } //16x32 + 32x32
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};
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shared_ptr<Console> _console;
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shared_ptr<InternalRegisters> _regs;
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bool _forcedVblank = false;
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uint8_t _screenBrightness = 0;
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uint16_t _cycle = 0;
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uint16_t _scanline = 0;
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uint32_t _frameCount = 0;
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uint8_t _bgMode = 0;
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bool _mode1Bg3Priority = false;
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uint8_t _mainScreenLayers = 0;
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uint8_t _subScreenLayers = 0;
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LayerConfig _layerConfig[4];
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uint8_t *_vram;
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uint16_t _vramAddress;
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uint8_t _vramIncrementValue;
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uint8_t _vramAddressRemapping;
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bool _vramAddrIncrementOnSecondReg;
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uint16_t _cgramAddress;
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uint8_t _cgram[Ppu::CgRamSize];
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uint16_t *_outputBuffers[2];
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bool _filled[256];
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uint16_t *_currentBuffer;
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bool _subScreenFilled[256];
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uint16_t *_subScreenBuffer;
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uint8_t _oamMode = 0;
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uint16_t _oamBaseAddress = 0;
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uint16_t _oamAddressOffset = 0;
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uint8_t _oamRam[Ppu::SpriteRamSize];
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uint16_t _oamRamAddress = 0;
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bool _enableOamPriority = false;
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uint16_t _internalOamAddress = 0;
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uint8_t _oamWriteBuffer = 0;
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bool _timeOver = false;
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bool _rangeOver = false;
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bool _directColorMode = false;
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uint8_t _colorMathClipMode = 0;
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uint8_t _colorMathPreventMode = 0;
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bool _colorMathAddSubscreen = false;
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uint8_t _colorMathEnabled = 0;
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bool _colorMathSubstractMode = false;
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bool _colorMathHalveResult = false;
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uint8_t _hvScrollLatchValue = 0;
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uint8_t _hScrollLatchValue = 0;
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template<bool forMainScreen>
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void RenderBgColor();
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template<uint8_t layerIndex, uint8_t bpp, bool processHighPriority, bool forMainScreen, uint16_t basePaletteOffset = 0>
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void RenderTilemap();
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template<uint8_t priority, bool forMainScreen>
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void DrawSprites();
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void RenderScanline();
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void ApplyColorMath();
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void SendFrame();
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public:
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Ppu(shared_ptr<Console> console);
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~Ppu();
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uint32_t GetFrameCount();
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PpuState GetState();
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void Exec();
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uint8_t* GetVideoRam();
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uint8_t* GetCgRam();
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uint8_t* GetSpriteRam();
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uint8_t Read(uint16_t addr);
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void Write(uint32_t addr, uint8_t value);
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}; |