mirror of
https://github.com/melonDS-emu/melonDS.git
synced 2025-07-23 14:19:55 -06:00
convert DSi I2C and camera
This commit is contained in:
Arisotura
@ -25,48 +25,27 @@
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using Platform::Log;
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using Platform::LogLevel;
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namespace DSi_CamModule
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{
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Camera* Camera0; // 78 / facing outside
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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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Camera* CurCamera;
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// note on camera data/etc intervals
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// on hardware those are likely affected by several factors
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// namely, how long cameras take to process frames
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// camera IRQ is fired at roughly 15FPS with default config
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const u32 kIRQInterval = 1120000; // ~30 FPS
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const u32 kTransferStart = 60000;
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const u32 DSi_CamModule::kIRQInterval = 1120000; // ~30 FPS
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const u32 DSi_CamModule::kTransferStart = 60000;
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bool Init()
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DSi_CamModule::DSi_CamModule()
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{
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NDS::RegisterEventFunc(NDS::Event_DSi_CamIRQ, 0, IRQ);
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NDS::RegisterEventFunc(NDS::Event_DSi_CamTransfer, 0, TransferScanline);
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NDS::RegisterEventFunc(NDS::Event_DSi_CamIRQ, 0, MemberEventFunc(DSi_CamModule, IRQ));
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NDS::RegisterEventFunc(NDS::Event_DSi_CamTransfer, 0, MemberEventFunc(DSi_CamModule, TransferScanline));
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Camera0 = new Camera(0);
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Camera1 = new Camera(1);
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return true;
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Camera0 = DSi::I2C->GetOuterCamera();
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Camera1 = DSi::I2C->GetInnerCamera();
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}
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void DeInit()
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DSi_CamModule::~DSi_CamModule()
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{
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delete Camera0;
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delete Camera1;
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Camera0 = nullptr;
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Camera1 = nullptr;
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@ -74,11 +53,8 @@ void DeInit()
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NDS::UnregisterEventFunc(NDS::Event_DSi_CamTransfer, 0);
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}
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void Reset()
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void DSi_CamModule::Reset()
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{
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Camera0->Reset();
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Camera1->Reset();
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ModuleCnt = 0; // CHECKME
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Cnt = 0;
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@ -94,13 +70,13 @@ void Reset()
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NDS::ScheduleEvent(NDS::Event_DSi_CamIRQ, false, kIRQInterval, 0, 0);
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}
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void Stop()
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void DSi_CamModule::Stop()
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{
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Camera0->Stop();
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Camera1->Stop();
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}
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void DoSavestate(Savestate* file)
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void DSi_CamModule::DoSavestate(Savestate* file)
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{
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file->Section("CAMi");
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@ -110,15 +86,12 @@ void DoSavestate(Savestate* file)
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/*file->VarArray(FrameBuffer, sizeof(FrameBuffer));
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file->Var32(&TransferPos);
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file->Var32(&FrameLength);*/
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Camera0->DoSavestate(file);
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Camera1->DoSavestate(file);
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}
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void IRQ(u32 param)
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void DSi_CamModule::IRQ(u32 param)
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{
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Camera* activecam = nullptr;
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DSi_Camera* activecam = nullptr;
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// TODO: cameras don't have any priority!
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// activating both together will jumble the image data together
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@ -145,7 +118,7 @@ void IRQ(u32 param)
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NDS::ScheduleEvent(NDS::Event_DSi_CamIRQ, true, kIRQInterval, 0, 0);
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}
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void TransferScanline(u32 line)
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void DSi_CamModule::TransferScanline(u32 line)
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{
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u32* dstbuf = &DataBuffer[BufferWritePos];
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int maxlen = 512 - BufferWritePos;
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@ -252,7 +225,7 @@ void TransferScanline(u32 line)
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}
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u8 Read8(u32 addr)
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u8 DSi_CamModule::Read8(u32 addr)
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{
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//
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@ -260,7 +233,7 @@ u8 Read8(u32 addr)
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return 0;
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}
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u16 Read16(u32 addr)
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u16 DSi_CamModule::Read16(u32 addr)
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{
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switch (addr)
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{
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@ -272,7 +245,7 @@ u16 Read16(u32 addr)
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return 0;
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}
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u32 Read32(u32 addr)
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u32 DSi_CamModule::Read32(u32 addr)
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{
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switch (addr)
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{
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@ -298,14 +271,14 @@ u32 Read32(u32 addr)
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return 0;
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}
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void Write8(u32 addr, u8 val)
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void DSi_CamModule::Write8(u32 addr, u8 val)
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{
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//
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Log(LogLevel::Debug, "unknown DSi cam write8 %08X %02X\n", addr, val);
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}
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void Write16(u32 addr, u16 val)
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void DSi_CamModule::Write16(u32 addr, u16 val)
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{
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switch (addr)
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{
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@ -384,7 +357,7 @@ void Write16(u32 addr, u16 val)
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Log(LogLevel::Debug, "unknown DSi cam write16 %08X %04X\n", addr, val);
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}
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void Write32(u32 addr, u32 val)
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void DSi_CamModule::Write32(u32 addr, u32 val)
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{
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switch (addr)
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{
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@ -403,16 +376,15 @@ void Write32(u32 addr, u32 val)
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Camera::Camera(u32 num)
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{
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Num = num;
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}
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Camera::~Camera()
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DSi_Camera::DSi_Camera(DSi_I2CHost* host, u32 num) : DSi_I2CDevice(host), Num(num)
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{
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}
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void Camera::DoSavestate(Savestate* file)
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DSi_Camera::~DSi_Camera()
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{
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}
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void DSi_Camera::DoSavestate(Savestate* file)
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{
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char magic[5] = "CAMx";
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magic[3] = '0' + Num;
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@ -433,7 +405,7 @@ void Camera::DoSavestate(Savestate* file)
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file->VarArray(MCURegs, 0x8000);
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}
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void Camera::Reset()
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void DSi_Camera::Reset()
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{
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Platform::Camera_Stop(Num);
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@ -458,12 +430,12 @@ void Camera::Reset()
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memset(FrameBuffer, 0, (640*480/2)*sizeof(u32));
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}
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void Camera::Stop()
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void DSi_Camera::Stop()
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{
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Platform::Camera_Stop(Num);
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}
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bool Camera::IsActivated()
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bool DSi_Camera::IsActivated()
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{
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if (StandbyCnt & (1<<14)) return false; // standby
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if (!(MiscCnt & (1<<9))) return false; // data transfer not enabled
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@ -472,7 +444,7 @@ bool Camera::IsActivated()
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}
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void Camera::StartTransfer()
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void DSi_Camera::StartTransfer()
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{
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TransferY = 0;
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@ -502,12 +474,12 @@ void Camera::StartTransfer()
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Platform::Camera_CaptureFrame(Num, FrameBuffer, 640, 480, true);
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}
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bool Camera::TransferDone()
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bool DSi_Camera::TransferDone()
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{
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return TransferY >= FrameHeight;
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}
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int Camera::TransferScanline(u32* buffer, int maxlen)
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int DSi_Camera::TransferScanline(u32* buffer, int maxlen)
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{
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if (TransferY >= FrameHeight)
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return 0;
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@ -560,12 +532,12 @@ int Camera::TransferScanline(u32* buffer, int maxlen)
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}
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void Camera::I2C_Start()
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void DSi_Camera::Acquire()
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{
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DataPos = 0;
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}
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u8 Camera::I2C_Read(bool last)
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u8 DSi_Camera::Read(bool last)
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{
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u8 ret;
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@ -586,7 +558,7 @@ u8 Camera::I2C_Read(bool last)
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return ret;
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}
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void Camera::I2C_Write(u8 val, bool last)
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void DSi_Camera::Write(u8 val, bool last)
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{
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if (DataPos < 2)
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{
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@ -615,7 +587,7 @@ void Camera::I2C_Write(u8 val, bool last)
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else DataPos++;
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}
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u16 Camera::I2C_ReadReg(u16 addr)
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u16 DSi_Camera::I2C_ReadReg(u16 addr)
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{
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switch (addr)
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{
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@ -651,7 +623,7 @@ u16 Camera::I2C_ReadReg(u16 addr)
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return 0;
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}
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void Camera::I2C_WriteReg(u16 addr, u16 val)
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void DSi_Camera::I2C_WriteReg(u16 addr, u16 val)
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{
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switch (addr)
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{
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@ -720,14 +692,14 @@ void Camera::I2C_WriteReg(u16 addr, u16 val)
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// TODO: not sure at all what is the accessible range
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// or if there is any overlap in the address range
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u8 Camera::MCU_Read(u16 addr)
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u8 DSi_Camera::MCU_Read(u16 addr)
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{
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addr &= 0x7FFF;
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return MCURegs[addr];
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}
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void Camera::MCU_Write(u16 addr, u8 val)
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void DSi_Camera::MCU_Write(u16 addr, u8 val)
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{
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addr &= 0x7FFF;
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@ -749,7 +721,7 @@ void Camera::MCU_Write(u16 addr, u8 val)
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}
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void Camera::InputFrame(u32* data, int width, int height, bool rgb)
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void DSi_Camera::InputFrame(u32* data, int width, int height, bool rgb)
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{
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// TODO: double-buffering?
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@ -820,19 +792,3 @@ void Camera::InputFrame(u32* data, int width, int height, bool rgb)
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}
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}
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}
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}
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