cdvdgigaherz: Get disc info when disc is first ready

Also set the disc speed at the correct time - CDROM SET SPEED only stays
in effect till the disc is removed.

Also fix a memleak in CDVDopen when the drive cannot be accessed.

plugins/cdvdGigaherz/src/CDVD.cpp

@@ -225,10 +225,10 @@ s32 CALLBACK CDVDopen(const char *pTitleFilename)
     printf(" * CDVD: Opening drive '%s'...\n", csrc);
 
     // open device file
-    src = new IOCtlSrc(csrc);
-
-    if (!src->IsOK()) {
-        printf(" * CDVD: Error opening source.\n");
+    try {
+        src = new IOCtlSrc(csrc);
+    } catch (std::runtime_error &ex) {
+        fputs(ex.what(), stdout);
         return -1;
     }
 

plugins/cdvdGigaherz/src/CDVD.h

@@ -56,9 +56,7 @@ class IOCtlSrc
 
     HANDLE m_device = INVALID_HANDLE_VALUE;
     std::string m_filename;
-    bool OpenOK;
 
-    bool m_disc_ready = false;
     s32 m_media_type = 0;
     u32 m_sectors = 0;
     u32 m_layer_break = 0;
@@ -66,25 +64,20 @@ class IOCtlSrc
 
     bool ReadDVDInfo();
     bool ReadCDInfo();
-    bool RefreshDiscInfo();
+    bool Reopen();
 
 public:
     IOCtlSrc(const char *filename);
     ~IOCtlSrc();
 
-    u32 GetSectorCount();
-    const std::vector<toc_entry> &ReadTOC();
+    u32 GetSectorCount() const;
+    const std::vector<toc_entry> &ReadTOC() const;
     s32 ReadSectors2048(u32 sector, u32 count, char *buffer);
     s32 ReadSectors2352(u32 sector, u32 count, char *buffer);
-    u32 GetLayerBreakAddress();
-
-    s32 GetMediaType();
-    void SetSpindleSpeed(bool restore_defaults);
-
-    s32 IsOK();
-    s32 Reopen();
-
-    s32 DiscChanged();
+    u32 GetLayerBreakAddress() const;
+    s32 GetMediaType() const;
+    void SetSpindleSpeed(bool restore_defaults) const;
+    bool DiscReady();
 };
 
 extern IOCtlSrc *src;

plugins/cdvdGigaherz/src/ReadThread.cpp

@@ -107,22 +107,9 @@ void cdvdCallNewDiscCB()
 
 bool cdvdUpdateDiscStatus()
 {
-    int change = src->DiscChanged();
+    bool ready = src->DiscReady();
 
-    if (change == -1) { //error getting status (no disc in drive?)
-        //try to recreate the device
-        src->Reopen();
-
-        if (src->IsOK()) {
-            change = 1;
-        } else {
-            curDiskType = CDVD_TYPE_NODISC;
-            curTrayStatus = CDVD_TRAY_OPEN;
-            return true;
-        }
-    }
-
-    if (change == 1) {
+    if (!ready) {
         if (!disc_has_changed) {
             disc_has_changed = true;
             curDiskType = CDVD_TYPE_NODISC;
@@ -134,15 +121,12 @@ bool cdvdUpdateDiscStatus()
             curDiskType = CDVD_TYPE_NODISC;
             curTrayStatus = CDVD_TRAY_CLOSE;
 
-            // just a test
-            src->Reopen();
-
             disc_has_changed = false;
             cdvdRefreshData();
             cdvdCallNewDiscCB();
         }
     }
-    return (change != 0);
+    return !ready;
 }
 
 DWORD CALLBACK cdvdThread(PVOID param)
@@ -150,9 +134,6 @@ DWORD CALLBACK cdvdThread(PVOID param)
     printf(" * CDVD: IO thread started...\n");
 
     while (cdvd_is_open) {
-        if (!src)
-            break;
-
         if (cdvdUpdateDiscStatus()) {
             // Need to sleep some to avoid an aggressive spin that sucks the cpu dry.
             Sleep(10);

plugins/cdvdGigaherz/src/Windows/IOCtlSrc.cpp

@@ -28,46 +28,49 @@
 #include <cstddef>
 #include <cstdlib>
 #include <array>
+#include <stdexcept>
 
 IOCtlSrc::IOCtlSrc(const char *filename)
     : m_filename(filename)
 {
-    Reopen();
-    SetSpindleSpeed(false);
+    if (!Reopen())
+        throw std::runtime_error(" * CDVD: Error opening source.\n");
 }
 
 IOCtlSrc::~IOCtlSrc()
 {
-    if (OpenOK) {
+    if (m_device != INVALID_HANDLE_VALUE) {
         SetSpindleSpeed(true);
         CloseHandle(m_device);
     }
 }
 
-s32 IOCtlSrc::Reopen()
+// If a new disc is inserted, ReadFile will fail unless the device is closed
+// and reopened.
+bool IOCtlSrc::Reopen()
 {
     if (m_device != INVALID_HANDLE_VALUE)
         CloseHandle(m_device);
 
-    DWORD size;
-
-    OpenOK = false;
     // SPTI only works if the device is opened with GENERIC_WRITE access.
     m_device = CreateFile(m_filename.c_str(), GENERIC_READ | GENERIC_WRITE,
                           FILE_SHARE_READ, nullptr, OPEN_EXISTING,
                           FILE_FLAG_SEQUENTIAL_SCAN, nullptr);
     if (m_device == INVALID_HANDLE_VALUE)
-        return -1;
+        return false;
 
+    DWORD unused;
     // Required to read from layer 1 of Dual layer DVDs
-    DeviceIoControl(m_device, FSCTL_ALLOW_EXTENDED_DASD_IO, nullptr, 0, nullptr, 0, &size, nullptr);
+    DeviceIoControl(m_device, FSCTL_ALLOW_EXTENDED_DASD_IO, nullptr, 0, nullptr,
+                    0, &unused, nullptr);
 
-    m_disc_ready = false;
-    OpenOK = true;
-    return 0;
+    if (ReadDVDInfo() || ReadCDInfo())
+        SetSpindleSpeed(false);
+
+    return true;
 }
 
-void IOCtlSrc::SetSpindleSpeed(bool restore_defaults)
+void IOCtlSrc::SetSpindleSpeed(bool restore_defaults) const
 {
 
     DWORD dontcare;
@@ -112,38 +115,23 @@ void IOCtlSrc::SetSpindleSpeed(bool restore_defaults)
     }
 }
 
-u32 IOCtlSrc::GetSectorCount()
+u32 IOCtlSrc::GetSectorCount() const
 {
-    if (!m_disc_ready)
-        RefreshDiscInfo();
-
     return m_sectors;
 }
 
-u32 IOCtlSrc::GetLayerBreakAddress()
+u32 IOCtlSrc::GetLayerBreakAddress() const
 {
-    if (!m_disc_ready)
-        RefreshDiscInfo();
-
-    if (GetMediaType() < 0)
-        return 0;
-
     return m_layer_break;
 }
 
-s32 IOCtlSrc::GetMediaType()
+s32 IOCtlSrc::GetMediaType() const
 {
-    if (!m_disc_ready)
-        RefreshDiscInfo();
-
     return m_media_type;
 }
 
-const std::vector<toc_entry> &IOCtlSrc::ReadTOC()
+const std::vector<toc_entry> &IOCtlSrc::ReadTOC() const
 {
-    if (!m_disc_ready)
-        RefreshDiscInfo();
-
     return m_toc;
 }
 
@@ -153,9 +141,6 @@ s32 IOCtlSrc::ReadSectors2048(u32 sector, u32 count, char *buffer)
 
     DWORD size = 0;
 
-    if (!OpenOK)
-        return -1;
-
     rri.DiskOffset.QuadPart = sector * (u64)2048;
     rri.SectorCount = count;
 
@@ -179,9 +164,6 @@ s32 IOCtlSrc::ReadSectors2048(u32 sector, u32 count, char *buffer)
 
 s32 IOCtlSrc::ReadSectors2352(u32 sector, u32 count, char *buffer)
 {
-    if (!OpenOK)
-        return -1;
-
     struct sptdinfo
     {
         SCSI_PASS_THROUGH_DIRECT info;
@@ -332,43 +314,21 @@ bool IOCtlSrc::ReadCDInfo()
     return true;
 }
 
-bool IOCtlSrc::RefreshDiscInfo()
+bool IOCtlSrc::DiscReady()
 {
-    if (m_disc_ready)
-        return true;
-
-    m_media_type = 0;
-    m_layer_break = 0;
-    m_sectors = 0;
-
-    if (!OpenOK)
+    if (m_device == INVALID_HANDLE_VALUE)
         return false;
 
-    if (ReadDVDInfo() || ReadCDInfo())
-        m_disc_ready = true;
-
-    return m_disc_ready;
-}
-
-s32 IOCtlSrc::DiscChanged()
-{
-    DWORD size = 0;
-
-    if (!OpenOK)
-        return -1;
-
-    int ret = DeviceIoControl(m_device, IOCTL_STORAGE_CHECK_VERIFY, NULL, 0, NULL, 0, &size, NULL);
-
-    if (ret == 0) {
-        m_disc_ready = false;
-
-        return 1;
+    DWORD unused;
+    if (DeviceIoControl(m_device, IOCTL_STORAGE_CHECK_VERIFY, nullptr, 0,
+                        nullptr, 0, &unused, nullptr)) {
+        if (!m_sectors)
+            Reopen();
+    } else {
+        m_sectors = 0;
+        m_layer_break = 0;
+        m_media_type = 0;
     }
 
-    return 0;
-}
-
-s32 IOCtlSrc::IsOK()
-{
-    return OpenOK;
+    return !!m_sectors;
 }