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melonDS
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prevent capture-o-magic from freezing. also, make code more readable.

This commit is contained in:
Arisotura 2019-09-14 13:45:01 +02:00
parent 20a97b79d4
commit b8f55623c1
1 changed files with 20 additions and 11 deletions
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31
src/libui_sdl/MelonCap.cpp
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@ -41,6 +41,7 @@ bool WinBitmapInited;
u32* WinBitmapData;
// this crap was built from the reverse-engineering of ds_capture.exe
// mixed in with their Linux capture sample code
GUID InterfaceClass = {0xA0B880F6, 0xD6A5, 0x4700, {0xA8, 0xEA, 0x22, 0x28, 0x2A, 0xCA, 0x55, 0x87}};
HANDLE CapHandle;
@ -92,8 +93,7 @@ void Init()
{
printf("MelonCap init\n");
// TODO: flags value!!!!!
HDEVINFO devinfo = SetupDiGetClassDevsW(&InterfaceClass, NULL, NULL, 0x12);
HDEVINFO devinfo = SetupDiGetClassDevsW(&InterfaceClass, NULL, NULL, DIGCF_DEVICEINTERFACE|DIGCF_PRESENT);
if (devinfo == INVALID_HANDLE_VALUE) return;
int member = 0;
@ -121,7 +121,9 @@ void Init()
if (ret)
{
printf("got interface detail: path=%S\n", interfacedetail->DevicePath);
HANDLE file = CreateFileW(interfacedetail->DevicePath, 0xC0000000, 3, NULL, 3, 0x40000080, NULL);
HANDLE file = CreateFileW(interfacedetail->DevicePath, GENERIC_READ|GENERIC_WRITE,
FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED, NULL);
if (file != INVALID_HANDLE_VALUE)
{
WINUSB_INTERFACE_HANDLE usbhandle;
@ -130,11 +132,11 @@ void Init()
{
int val;
val = 0x1E;
WinUsb_SetPipePolicy(usbhandle, 0x00, 3, 4, &val);
WinUsb_SetPipePolicy(usbhandle, 0x00, PIPE_TRANSFER_TIMEOUT, 4, &val);
val = 0x32;
WinUsb_SetPipePolicy(usbhandle, 0x82, 3, 4, &val);
WinUsb_SetPipePolicy(usbhandle, 0x82, PIPE_TRANSFER_TIMEOUT, 4, &val);
val = 0x01;
WinUsb_SetPipePolicy(usbhandle, 0x82, 7, 1, &val);
WinUsb_SetPipePolicy(usbhandle, 0x82, RAW_IO, 1, &val);
printf("looking good\n");
good = true;
@ -186,7 +188,7 @@ void DeInit()
}
u32 VendorIn(u8 req, u16 len, u8* buf)
int VendorIn(u8 req, u16 len, u8* buf)
{
WINUSB_SETUP_PACKET pkt;
pkt.RequestType = 0xC0; // device to host
@ -201,10 +203,10 @@ u32 VendorIn(u8 req, u16 len, u8* buf)
return ret;
}
u32 VendorOut(u8 req, u16 val, u16 len, u8* buf)
int VendorOut(u8 req, u16 val, u16 len, u8* buf)
{
WINUSB_SETUP_PACKET pkt;
pkt.RequestType = 0x40; // device to host
pkt.RequestType = 0x40; // host to device
pkt.Request = req;
pkt.Value = val;
pkt.Index = 0;
@ -216,7 +218,7 @@ u32 VendorOut(u8 req, u16 val, u16 len, u8* buf)
return ret;
}
u32 BulkIn(u8* buf, u32 len)
int BulkIn(u8* buf, u32 len)
{
ULONG ret = 0;
BOOL res = WinUsb_ReadPipe(CapUSBHandle, 0x82, buf, len, &ret, NULL);
@ -250,11 +252,18 @@ void CaptureFrame()
ret = VendorOut(0x30, 0, 0, &derp);
if (ret < 0) return;
int tries = 0;
while (framepos < framelen)
{
ret = BulkIn((u8*)&frame[framepos/2], framelen-framepos);
if (ret < 0) break;
if (ret > 0) framepos += ret;
if (ret == 0)
{
tries++;
if (tries >= 100) break;
continue;
}
framepos += ret;
}
ret = VendorIn(0x30, 64, frameinfo);