mirror of
https://github.com/melonDS-emu/melonDS.git
synced 2024-11-14 21:37:42 -07:00
132 lines
3.1 KiB
C++
132 lines
3.1 KiB
C++
/*
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Copyright 2016-2024 melonDS team
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This file is part of melonDS.
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melonDS is free software: you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation, either version 3 of the License, or (at your option)
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any later version.
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melonDS is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with melonDS. If not, see http://www.gnu.org/licenses/.
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*/
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#ifndef DSI_CAMERA_H
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#define DSI_CAMERA_H
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#include "types.h"
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#include "Savestate.h"
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#include "DSi_I2C.h"
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namespace melonDS
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{
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class DSi;
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class DSi_CamModule;
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class DSi_Camera : public DSi_I2CDevice
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{
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public:
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DSi_Camera(melonDS::DSi& dsi, DSi_I2CHost* host, u32 num);
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~DSi_Camera();
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void DoSavestate(Savestate* file) override;
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void Reset() override;
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void Stop();
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bool IsActivated() const;
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void StartTransfer();
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bool TransferDone() const;
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// lengths in words
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int TransferScanline(u32* buffer, int maxlen);
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void Acquire() override;
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u8 Read(bool last) override;
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void Write(u8 val, bool last) override;
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void InputFrame(const u32* data, int width, int height, bool rgb);
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u32 Num;
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private:
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u32 DataPos;
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u32 RegAddr;
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u16 RegData;
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u16 I2C_ReadReg(u16 addr) const;
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void I2C_WriteReg(u16 addr, u16 val);
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u16 PLLDiv;
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u16 PLLPDiv;
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u16 PLLCnt;
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u16 ClocksCnt;
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u16 StandbyCnt;
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u16 MiscCnt;
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u16 MCUAddr;
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u8 MCURegs[0x8000];
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u8 MCU_Read(u16 addr) const;
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void MCU_Write(u16 addr, u8 val);
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u16 FrameWidth, FrameHeight;
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u16 FrameReadMode, FrameFormat;
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int TransferY;
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u32 FrameBuffer[640*480/2]; // YUYV framebuffer, two pixels per word
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};
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class DSi_CamModule
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{
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public:
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DSi_CamModule(melonDS::DSi& dsi);
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~DSi_CamModule();
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void Reset();
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void Stop();
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void DoSavestate(Savestate* file);
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const DSi_Camera* GetOuterCamera() const { return Camera0; }
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DSi_Camera* GetOuterCamera() { return Camera0; }
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const DSi_Camera* GetInnerCamera() const { return Camera1; }
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DSi_Camera* GetInnerCamera() { return Camera1; }
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void IRQ(u32 param);
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void TransferScanline(u32 line);
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u8 Read8(u32 addr);
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u16 Read16(u32 addr);
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u32 Read32(u32 addr);
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void Write8(u32 addr, u8 val);
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void Write16(u32 addr, u16 val);
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void Write32(u32 addr, u32 val);
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private:
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melonDS::DSi& DSi;
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DSi_Camera* Camera0; // 78 / facing outside
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DSi_Camera* Camera1; // 7A / selfie cam
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u16 ModuleCnt;
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u16 Cnt;
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u32 CropStart, CropEnd;
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// pixel data buffer holds a maximum of 512 words, regardless of how long scanlines are
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u32 DataBuffer[512];
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u32 BufferReadPos, BufferWritePos;
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u32 BufferNumLines;
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DSi_Camera* CurCamera;
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static const u32 kIRQInterval;
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static const u32 kTransferStart;
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};
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}
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#endif // DSI_CAMERA_H
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